/* ===========================
   DESIGN SYSTEM - 2025 Edition
   count-down-timer.com
   Updated: December 31, 2025
   Enhanced by: Overnight Agent v2.0
=========================== */

/* ===========================
   GOOGLE FONTS (Distinctive Typography)
   Space Grotesk: Modern, distinctive headings
   Inter: Timer display (modern tech standard - GitHub, Figma, Mozilla)
=========================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

:root {
  /* ========== COLOR TOKENS ========== */

  /* Primary - Purple Gradient (Brand Identity) */
  --color-primary-50: #f5f3ff;
  --color-primary-100: #ede9fe;
  --color-primary-200: #ddd6fe;
  --color-primary-300: #c4b5fd;
  --color-primary-400: #a78bfa;
  --color-primary-500: #667eea;
  --color-primary-600: #764ba2;
  --color-primary-700: #6d28d9;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-primary-hover: linear-gradient(135deg, #5a6fd6 0%, #6a4393 100%);

  /* State Colors */
  --color-running: #10b981;
  --color-running-glow: rgba(16, 185, 129, 0.4);
  --color-paused: #f59e0b;
  --color-paused-glow: rgba(245, 158, 11, 0.4);
  --color-expired: #ef4444;
  --color-expired-glow: rgba(239, 68, 68, 0.4);

  /* Semantic Colors */
  --color-success: #22c55e;
  --color-error: #ef4444;
  --color-warning: #f59e0b;
  --color-info: #3b82f6;

  /* Light Mode Surfaces */
  --bg-color: #f8fafc;
  --surface-card: #ffffff;
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-inverted: #ffffff;
  --card-border: #e2e8f0;

  /* Legacy compatibility */
  --text-color: var(--text-secondary);
  --heading-color: var(--text-primary);
  --subheading-color: var(--text-secondary);
  --muted-color: var(--text-muted);
  --primary-color: #667eea;
  --primary-hover: #764ba2;
  --accent-blue: #667eea;
  --accent-purple: #764ba2;
  --accent-red: #dc3545;
  --accent-green: #28a745;
  --accent-orange: #e67e22;
  --card-bg: var(--surface-card);
  --card-shadow: 0 2px 20px rgba(0,0,0,0.05);
  --card-radius: 16px;
  --footer-bg: #1e293b;
  --footer-text: #ffffff;

  /* Dark Mode Colors */
  --dark-bg: #0f172a;
  --dark-surface-card: #1e293b;
  --dark-text-primary: #f1f5f9;
  --dark-text-secondary: #cbd5e1;
  --dark-text-muted: #64748b;
  --dark-card-border: #334155;

  /* Legacy dark mode */
  --dark-text: var(--dark-text-secondary);
  --dark-card-bg: var(--dark-surface-card);
  --dark-heading: var(--dark-text-primary);

  /* ========== TYPOGRAPHY ========== */

  /* Primary: Space Grotesk (distinctive, modern) */
  --font-sans: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  /* Timer Display: Inter (modern tech standard - GitHub, Figma, Mozilla) */
  --font-timer: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  /* Mono: For code blocks only */
  --font-mono: 'SF Mono', Monaco, Consolas, monospace;

  /* Fluid Type Scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.375vw, 1rem);
  --text-base: clamp(1rem, 0.9rem + 0.5vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.625vw, 1.25rem);
  --text-xl: clamp(1.25rem, 1.1rem + 0.75vw, 1.5rem);
  --text-2xl: clamp(1.5rem, 1.25rem + 1.25vw, 2rem);
  --text-3xl: clamp(1.875rem, 1.5rem + 1.875vw, 2.5rem);
  --text-4xl: clamp(2.25rem, 1.75rem + 2.5vw, 3rem);
  --text-timer: clamp(4rem, 12vw, 8rem);

  /* ========== SPACING ========== */

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* ========== SHADOWS ========== */

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --glow-primary: 0 0 20px rgba(102, 126, 234, 0.4);
  --glow-primary-strong: 0 0 40px rgba(102, 126, 234, 0.6);

  /* ========== BORDERS ========== */

  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* ========== ANIMATION ========== */

  --duration-fast: 100ms;
  --duration-normal: 200ms;
  --duration-slow: 300ms;
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ===========================
   BASE STYLES
=========================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-color);
  color: var(--text-color);
  line-height: 1.7;
  transition: background var(--duration-slow), color var(--duration-slow);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  /* Mesh gradient background for depth */
  background-image:
    radial-gradient(circle at 20% 30%, rgba(102, 126, 234, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(118, 75, 162, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(102, 126, 234, 0.04) 0%, transparent 60%);
  background-attachment: fixed;
}

body.dark-mode {
  background: var(--dark-bg);
  color: var(--dark-text);
  /* Dark mode mesh gradient */
  background-image:
    radial-gradient(circle at 20% 30%, rgba(102, 126, 234, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(118, 75, 162, 0.12) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(72, 187, 120, 0.05) 0%, transparent 60%);
  background-attachment: fixed;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--duration-normal);
}

a:hover {
  color: var(--primary-hover);
  text-decoration: underline;
}

/* ===========================
   HEADER / NAVIGATION
=========================== */

header {
  background: var(--gradient-primary);
  color: white;
  padding: var(--space-4) var(--space-6);
  box-shadow: var(--shadow-lg);
  position: sticky;
  top: 0;
  z-index: 100;
}

body.dark-mode header {
  background: linear-gradient(135deg, #4a5568 0%, #2d3748 100%);
}

.top-nav,
nav {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.logo {
  font-size: var(--text-xl);
  font-weight: 700;
  color: white !important;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo:hover {
  text-decoration: none;
  opacity: 0.95;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-links a {
  color: white;
  text-decoration: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  opacity: 0.9;
  transition: opacity var(--duration-fast), background var(--duration-fast);
  font-size: var(--text-sm);
}

.nav-links a:hover {
  opacity: 1;
  background: rgba(255, 255, 255, 0.15);
  text-decoration: none;
}

/* Mobile Menu Toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
  color: white;
}

.nav-toggle-icon {
  display: block;
  width: 24px;
  height: 2px;
  background: white;
  position: relative;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 2px;
  background: white;
  left: 0;
}

.nav-toggle-icon::before { top: -7px; }
.nav-toggle-icon::after { bottom: -7px; }

/* ===========================
   MAIN CONTENT AREA
=========================== */

main {
  max-width: 900px;
  margin: var(--space-8) auto;
  padding: var(--space-8);
  background: var(--card-bg);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-lg);
  transition: background var(--duration-slow);
  flex: 1;
}

body.dark-mode main {
  background: var(--dark-card-bg);
  color: var(--dark-text);
}

/* ===========================
   TYPOGRAPHY
=========================== */

h1 {
  color: var(--heading-color);
  margin-bottom: var(--space-4);
  font-size: var(--text-3xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

body.dark-mode h1 {
  color: var(--dark-heading);
}

h2 {
  color: var(--subheading-color);
  margin: var(--space-8) 0 var(--space-4) 0;
  font-size: var(--text-xl);
  font-weight: 600;
  border-bottom: 2px solid var(--accent-blue);
  padding-bottom: var(--space-2);
}

body.dark-mode h2 {
  color: var(--dark-text);
  border-bottom-color: var(--accent-purple);
}

h3 {
  color: var(--text-secondary);
  margin: var(--space-6) 0 var(--space-3) 0;
  font-size: var(--text-lg);
  font-weight: 600;
}

p {
  margin-bottom: var(--space-4);
}

ul, ol {
  margin: var(--space-4) 0 var(--space-4) var(--space-8);
}

li {
  margin-bottom: var(--space-2);
}

.last-updated {
  color: var(--muted-color);
  margin-bottom: var(--space-8);
  font-size: var(--text-sm);
}

.instructions {
  text-align: center;
  font-size: var(--text-base);
  color: var(--text-secondary);
  margin-bottom: var(--space-6);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ===========================
   TIMER SECTION (Homepage)
=========================== */

.timer-section {
  text-align: center;
}

.timer-section h1 {
  margin-top: 0;
  font-size: var(--text-2xl);
  margin-bottom: var(--space-2);
}

.timer-section .tagline {
  color: var(--text-muted);
  font-size: var(--text-base);
  margin-bottom: var(--space-6);
}

/* Time Inputs */
.time-inputs {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}

.input-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
}

.input-group label {
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.input-group input {
  width: 80px;
  padding: var(--space-3);
  text-align: center;
  font-size: var(--text-lg);
  font-family: var(--font-mono);
  border: 2px solid var(--card-border);
  border-radius: var(--radius-xl);
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
  background: var(--surface-card);
}

.input-group input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

body.dark-mode .input-group input {
  background: var(--dark-surface-card);
  border-color: var(--dark-card-border);
  color: var(--dark-text);
}

/* ===========================
   TIMER DISPLAY - HERO SIZED
=========================== */

.timer-display {
  font-size: var(--text-timer);
  text-align: center;
  margin: var(--space-6) 0;
  font-weight: 600; /* Semi-bold for clean, professional look */
  /* Inter: Modern tech standard with excellent tabular figures */
  font-family: var(--font-timer);
  color: var(--heading-color);
  letter-spacing: -0.02em; /* Slightly tighter for Inter's design */
  transition: color var(--duration-normal), text-shadow var(--duration-normal);
  line-height: 1;
  /* Tabular figures ensure consistent digit widths - critical for timers */
  font-variant-numeric: tabular-nums;
}

body.dark-mode .timer-display {
  color: var(--dark-heading);
}

/* Timer States */
.timer-display[data-state="running"] {
  color: var(--color-running);
}

body.dark-mode .timer-display[data-state="running"] {
  text-shadow: 0 0 40px var(--color-running-glow);
}

.timer-display[data-state="paused"] {
  color: var(--color-paused);
}

body.dark-mode .timer-display[data-state="paused"] {
  text-shadow: 0 0 40px var(--color-paused-glow);
}

.timer-display[data-state="expired"] {
  color: var(--color-expired) !important;
}

body.dark-mode .timer-display[data-state="expired"] {
  color: var(--color-expired) !important;
  text-shadow: 0 0 40px var(--color-expired-glow);
}

/* Progress Bar */
.timer-progress {
  max-width: 400px;
  height: 8px;
  background: var(--bg-color);
  border-radius: var(--radius-full);
  margin: 0 auto var(--space-6);
  overflow: hidden;
}

body.dark-mode .timer-progress {
  background: var(--dark-bg);
}

.timer-progress-bar {
  height: 100%;
  width: 0%;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  transition: width 1s linear;
}

.timer-progress-bar[data-state="running"] {
  background: var(--color-running);
}

.timer-progress-bar[data-state="paused"] {
  background: var(--color-paused);
}

.timer-progress-bar[data-state="expired"] {
  background: var(--color-expired);
}

/* ===========================
   BUTTONS
=========================== */

.button-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

button,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  background: var(--gradient-primary);
  color: var(--text-inverted);
  border: none;
  border-radius: var(--radius-full);
  transition: transform var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
  box-shadow: var(--shadow-md);
}

button:hover,
.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow-primary);
}

button:active,
.btn:active {
  transform: translateY(0);
}

button:disabled,
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: var(--shadow-sm);
}

/* Button Variants */
.btn-secondary,
.reset-btn {
  background: transparent !important;
  color: var(--color-error) !important;
  border: 2px solid var(--color-error) !important;
  box-shadow: none !important;
}

.reset-btn:hover {
  background: var(--color-error) !important;
  color: white !important;
  box-shadow: 0 5px 15px rgba(239, 68, 68, 0.3) !important;
}

.stop-sound-btn,
.stop-countdown-btn {
  background: var(--text-muted) !important;
  box-shadow: none !important;
}

.stop-sound-btn:hover,
.stop-countdown-btn:hover {
  background: var(--text-secondary) !important;
  box-shadow: var(--shadow-md) !important;
}

#darkModeToggle {
  background: var(--text-primary);
}

body.dark-mode #darkModeToggle {
  background: var(--dark-text-muted);
}

/* Button Sizes */
.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
  min-height: 56px;
}

/* Sound Toggle */
.sound-toggle {
  text-align: center;
  margin-bottom: var(--space-4);
}

.sound-toggle label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

.sound-toggle input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary-color);
}

/* ===========================
   PRESET BUTTONS
=========================== */

.preset-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  margin: var(--space-6) 0;
}

.preset-label {
  font-weight: 600;
  color: var(--text-muted);
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.preset-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
}

.preset-btn {
  padding: var(--space-2) var(--space-4) !important;
  font-size: var(--text-sm) !important;
  font-weight: 500 !important;
  background: var(--surface-card) !important;
  color: var(--text-secondary) !important;
  border: 1px solid var(--card-border) !important;
  box-shadow: none !important;
}

.preset-btn:hover {
  background: var(--gradient-primary) !important;
  color: white !important;
  border-color: transparent !important;
  box-shadow: var(--shadow-md) !important;
}

body.dark-mode .preset-btn {
  background: var(--dark-surface-card) !important;
  color: var(--dark-text-secondary) !important;
  border-color: var(--dark-card-border) !important;
}

body.dark-mode .preset-btn:hover {
  background: var(--gradient-primary) !important;
  color: white !important;
}

/* ===========================
   SECONDARY ACTIONS
=========================== */

.secondary-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-6);
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--card-border);
}

.secondary-action {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: color var(--duration-fast), background var(--duration-fast);
  font-size: var(--text-xs);
  box-shadow: none !important;
}

.secondary-action:hover {
  color: var(--primary-color);
  background: var(--color-primary-50);
  transform: none;
}

body.dark-mode .secondary-action:hover {
  background: rgba(102, 126, 234, 0.1);
}

.secondary-action svg {
  width: 24px;
  height: 24px;
}

/* ===========================
   HIGHLIGHT BOXES
=========================== */

.highlight-box,
.info-box {
  background: #e0f2fe;
  border-left: 4px solid var(--color-info);
  padding: var(--space-4) var(--space-5);
  margin: var(--space-6) 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.warning-box {
  background: #fef3c7;
  border-left: 4px solid var(--color-warning);
  padding: var(--space-4) var(--space-5);
  margin: var(--space-6) 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.important-box {
  background: #fff3cd;
  border-left: 4px solid #ffc107;
  padding: var(--space-4) var(--space-5);
  margin: var(--space-6) 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.tip-box {
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
  border-left: 4px solid var(--primary-color);
  padding: var(--space-4) var(--space-5);
  margin: var(--space-6) 0;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

body.dark-mode .highlight-box,
body.dark-mode .info-box,
body.dark-mode .warning-box,
body.dark-mode .important-box,
body.dark-mode .tip-box {
  background: rgba(255,255,255,0.05);
}

/* ===========================
   TABLES
=========================== */

table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-4) 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

th, td {
  border: 1px solid var(--card-border);
  padding: var(--space-3) var(--space-4);
  text-align: left;
}

th {
  background: var(--gradient-primary);
  color: white;
  font-weight: 600;
}

tr:nth-child(even) {
  background: var(--bg-color);
}

body.dark-mode th {
  background: linear-gradient(135deg, #4a5568 0%, #2d3748 100%);
}

body.dark-mode tr:nth-child(even) {
  background: rgba(255,255,255,0.03);
}

body.dark-mode td {
  border-color: var(--dark-card-border);
}

/* ===========================
   EXTRA INFO SECTION
=========================== */

.extra-info {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--card-border);
}

.extra-info h2 {
  border-bottom: none;
  margin-top: 0;
  font-size: var(--text-lg);
}

body.dark-mode .extra-info {
  border-top-color: var(--dark-card-border);
}

/* ===========================
   GUIDES SECTION (Homepage)
=========================== */

.guides-section {
  margin-top: var(--space-10);
  padding-top: var(--space-8);
  border-top: 1px solid var(--card-border);
  text-align: center;
}

.guides-section h2 {
  border-bottom: none;
  margin-top: 0;
  font-size: var(--text-xl);
}

.guides-section > p {
  color: var(--text-muted);
  max-width: 500px;
  margin: 0 auto var(--space-6);
}

.guides-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-4);
  margin: var(--space-6) 0;
}

.guide-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: var(--surface-card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  text-decoration: none;
  transition: all var(--duration-normal) var(--ease-out);
}

.guide-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-color);
  text-decoration: none;
}

.guide-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: var(--space-3);
}

.guide-card h3 {
  color: var(--heading-color);
  margin: 0 0 var(--space-2) 0;
  font-size: var(--text-base);
  font-weight: 600;
}

.guide-card p {
  color: var(--text-muted);
  font-size: var(--text-sm);
  margin: 0;
  line-height: 1.5;
}

body.dark-mode .guide-card {
  background: var(--dark-surface-card);
  border-color: var(--dark-card-border);
}

body.dark-mode .guide-card h3 {
  color: var(--dark-heading);
}

.guides-cta {
  margin-top: var(--space-4);
}

.guides-cta a {
  font-weight: 600;
  font-size: var(--text-base);
}

body.dark-mode .guides-section {
  border-top-color: var(--dark-card-border);
}

/* ===========================
   RELATED ARTICLES (Blog)
=========================== */

.related-articles {
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 2px solid var(--card-border);
}

.related-articles h3 {
  text-align: center;
  color: var(--heading-color);
  margin-bottom: var(--space-6);
  font-size: var(--text-xl);
}

body.dark-mode .related-articles {
  border-top-color: var(--dark-card-border);
}

body.dark-mode .related-articles h3 {
  color: var(--dark-heading);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-4);
}

.related-card {
  display: block;
  background: var(--surface-card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  text-decoration: none;
  transition: all var(--duration-normal) var(--ease-out);
}

.related-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-color);
  text-decoration: none;
}

.related-card h4 {
  color: var(--heading-color);
  margin: 0 0 var(--space-2) 0;
  font-size: var(--text-base);
  font-weight: 600;
}

.related-card p {
  color: var(--text-muted);
  font-size: var(--text-sm);
  margin: 0;
  line-height: 1.5;
}

body.dark-mode .related-card {
  background: var(--dark-surface-card);
  border-color: var(--dark-card-border);
}

body.dark-mode .related-card h4 {
  color: var(--dark-heading);
}

/* ===========================
   CTA BOX
=========================== */

.cta-box {
  background: var(--gradient-primary);
  color: white;
  padding: var(--space-10);
  border-radius: var(--radius-2xl);
  text-align: center;
  margin: var(--space-8) 0;
}

.cta-box h3 {
  color: white;
  margin: 0 0 var(--space-2) 0;
  font-size: var(--text-2xl);
}

.cta-box p {
  opacity: 0.9;
  margin-bottom: var(--space-6);
}

.cta-box a {
  display: inline-block;
  background: white;
  color: var(--primary-color);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-full);
  text-decoration: none;
  font-weight: 700;
  font-size: var(--text-lg);
  transition: transform var(--duration-fast), box-shadow var(--duration-normal);
}

.cta-box a:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
  text-decoration: none;
}

/* ===========================
   ARTICLE STYLES
=========================== */

.article-meta {
  color: var(--text-muted);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--card-border);
  font-size: var(--text-sm);
}

.article-content p {
  margin-bottom: var(--space-5);
  line-height: 1.8;
}

.article-content h2 {
  margin-top: var(--space-10);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  color: var(--primary-color);
  font-weight: 500;
}

/* ===========================
   BLOG GRID
=========================== */

.blog-intro {
  text-align: center;
  margin-bottom: var(--space-8);
}

.blog-intro p {
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.blog-card {
  background: var(--surface-card);
  border-radius: var(--card-radius);
  box-shadow: var(--shadow-sm);
  padding: var(--space-6);
  transition: transform var(--duration-normal), box-shadow var(--duration-normal);
  border: 1px solid var(--card-border);
  display: flex;
  flex-direction: column;
}

body.dark-mode .blog-card {
  background: var(--dark-card-bg);
  border-color: var(--dark-card-border);
}

.blog-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.blog-card h3 {
  margin: 0 0 var(--space-3) 0;
  color: var(--heading-color);
  font-size: var(--text-lg);
}

body.dark-mode .blog-card h3 {
  color: var(--dark-heading);
}

.blog-card p {
  color: var(--text-muted);
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
  flex: 1;
}

.blog-card .read-more {
  display: inline-block;
  background: var(--gradient-primary);
  color: white;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 600;
  transition: transform var(--duration-fast), box-shadow var(--duration-normal);
  align-self: flex-start;
}

.blog-card .read-more:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow-primary);
  text-decoration: none;
}

.blog-card .category {
  display: inline-block;
  background: var(--color-primary-100);
  color: var(--color-primary-700);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  margin-bottom: var(--space-3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

body.dark-mode .blog-card .category {
  background: rgba(102, 126, 234, 0.2);
  color: var(--color-primary-300);
}

/* ===========================
   FOOTER
=========================== */

footer {
  text-align: center;
  padding: var(--space-8);
  background: var(--footer-bg);
  color: var(--footer-text);
  margin-top: auto;
}

footer p {
  margin: 0;
  font-size: var(--text-sm);
}

footer a {
  color: #a8c0ff;
}

footer a:hover {
  color: #ffffff;
  text-decoration: underline;
}

body.dark-mode footer {
  background: #0f0f1a;
}

/* ===========================
   ANIMATIONS
=========================== */

@keyframes blinkRed {
  0%, 100% { color: var(--color-expired); }
  50% { color: #991b1b; }
}

.negativeBlink {
  animation: blinkRed 1s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeInUp 0.5s ease-out;
}

/* ===========================
   FAQ ACCORDION
   Interactive expandable Q&A
=========================== */

.faq-container {
  max-width: 800px;
  margin: 0 auto;
}

.faq-category {
  margin-bottom: var(--space-8);
}

.faq-category-title {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--primary-color);
  color: var(--heading-color);
}

body.dark-mode .faq-category-title {
  color: var(--dark-heading);
  border-bottom-color: var(--color-primary-400);
}

.faq-icon {
  font-size: var(--text-2xl);
  line-height: 1;
}

.faq-item {
  margin-bottom: var(--space-2);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow var(--duration-normal) var(--ease-out);
  background: var(--surface-card);
}

body.dark-mode .faq-item {
  background: var(--dark-surface-card);
  border-color: var(--dark-card-border);
}

.faq-item:hover {
  box-shadow: var(--shadow-md);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: var(--text-base);
  font-weight: 500;
  font-family: inherit;
  color: var(--text-primary);
  transition: background var(--duration-fast) var(--ease-out);
}

body.dark-mode .faq-question {
  color: var(--dark-text-primary);
}

.faq-question:hover {
  background: var(--color-primary-50);
}

body.dark-mode .faq-question:hover {
  background: rgba(102, 126, 234, 0.1);
}

.faq-q-text {
  flex: 1;
  line-height: 1.5;
}

.faq-toggle {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--duration-normal) var(--ease-out);
  color: var(--text-muted);
}

.faq-question[aria-expanded="true"] .faq-toggle {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 var(--space-5) var(--space-5) var(--space-5);
  background: var(--color-primary-50);
  border-top: 1px solid var(--card-border);
  line-height: 1.7;
  color: var(--text-secondary);
}

body.dark-mode .faq-answer {
  background: rgba(102, 126, 234, 0.05);
  border-top-color: var(--dark-card-border);
  color: var(--dark-text-secondary);
}

.faq-answer p {
  margin: var(--space-3) 0 0 0;
}

.faq-answer p:first-child {
  margin-top: 0;
}

.faq-answer a {
  color: var(--primary-color);
  font-weight: 500;
  text-decoration: none;
  transition: color var(--duration-fast);
}

.faq-answer a:hover {
  text-decoration: underline;
}

body.dark-mode .faq-answer a {
  color: var(--color-primary-300);
}

/* FAQ animation for opening */
.faq-answer[hidden] {
  display: none;
}

.faq-answer:not([hidden]) {
  animation: faqExpand 0.3s var(--ease-out);
}

@keyframes faqExpand {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* FAQ intro section */
.faq-intro {
  text-align: center;
  margin-bottom: var(--space-8);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.faq-intro h1 {
  margin-bottom: var(--space-4);
}

.faq-intro p {
  color: var(--text-muted);
}

/* ===========================
   PAGE LOAD ANIMATIONS
   Staggered reveals for polish
=========================== */

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Orchestrated page load animations */
.timer-section h1 {
  animation: fadeInUp 0.6s var(--ease-out) 0.1s both;
}

.timer-section .tagline {
  animation: fadeInUp 0.6s var(--ease-out) 0.2s both;
}

.time-inputs {
  animation: fadeInUp 0.6s var(--ease-out) 0.3s both;
}

.preset-group {
  animation: fadeInUp 0.6s var(--ease-out) 0.4s both;
}

.timer-display {
  animation: scaleIn 0.6s var(--ease-out) 0.5s both;
}

.timer-progress {
  animation: fadeInUp 0.5s var(--ease-out) 0.6s both;
}

.button-group {
  animation: fadeInUp 0.5s var(--ease-out) 0.7s both;
}

.guides-section {
  animation: fadeInUp 0.6s var(--ease-out) 0.8s both;
}

/* Header animation */
header {
  animation: fadeInDown 0.5s var(--ease-out);
}

/* Main content animation */
main {
  animation: fadeInUp 0.5s var(--ease-out);
}

/* Blog cards staggered */
.blog-card:nth-child(1) { animation: fadeInUp 0.5s var(--ease-out) 0.1s both; }
.blog-card:nth-child(2) { animation: fadeInUp 0.5s var(--ease-out) 0.2s both; }
.blog-card:nth-child(3) { animation: fadeInUp 0.5s var(--ease-out) 0.3s both; }
.blog-card:nth-child(4) { animation: fadeInUp 0.5s var(--ease-out) 0.4s both; }
.blog-card:nth-child(5) { animation: fadeInUp 0.5s var(--ease-out) 0.5s both; }
.blog-card:nth-child(6) { animation: fadeInUp 0.5s var(--ease-out) 0.6s both; }

/* Guide cards staggered */
.guide-card:nth-child(1) { animation: fadeInUp 0.5s var(--ease-out) 0.2s both; }
.guide-card:nth-child(2) { animation: fadeInUp 0.5s var(--ease-out) 0.3s both; }
.guide-card:nth-child(3) { animation: fadeInUp 0.5s var(--ease-out) 0.4s both; }

/* ===========================
   REDUCED MOTION SUPPORT
   Respect user preferences
=========================== */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ===========================
   DETACHED TIMER
=========================== */

.mini-detached {
  text-align: center;
  background: var(--card-bg);
  margin: 0 auto;
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  max-width: 300px;
  box-shadow: var(--shadow-md);
}

/* ===========================
   RESPONSIVE DESIGN
=========================== */

@media (max-width: 768px) {
  header {
    padding: var(--space-3) var(--space-4);
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-primary-700);
    flex-direction: column;
    padding: var(--space-4);
    gap: 0;
    box-shadow: var(--shadow-lg);
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links a {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
  }

  main {
    margin: var(--space-4);
    padding: var(--space-6);
  }

  h1 {
    font-size: var(--text-2xl);
  }

  .timer-display {
    font-size: clamp(2.5rem, 15vw, 5rem);
  }

  .button-group {
    gap: var(--space-2);
  }

  .button-group button {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
  }

  .guides-grid {
    grid-template-columns: 1fr;
  }

  .guide-card {
    padding: var(--space-4);
  }

  .cta-box {
    padding: var(--space-6);
  }

  .cta-box h3 {
    font-size: var(--text-xl);
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: var(--text-xl);
  }

  .timer-display {
    font-size: clamp(2rem, 18vw, 3.5rem);
  }

  main {
    margin: var(--space-2);
    padding: var(--space-4);
    border-radius: var(--radius-lg);
  }

  .time-inputs {
    gap: var(--space-2);
  }

  .input-group input {
    width: 65px;
    padding: var(--space-2);
  }

  .preset-btn {
    padding: var(--space-1) var(--space-3) !important;
    font-size: var(--text-xs) !important;
  }

  .secondary-actions {
    flex-wrap: wrap;
    gap: var(--space-3);
  }
}

/* ===========================
   PRINT STYLES
=========================== */

@media print {
  header, footer, .button-group, .preset-group, .sound-toggle {
    display: none;
  }

  main {
    box-shadow: none;
    margin: 0;
    padding: 1rem;
  }

  .timer-display {
    font-size: 3rem;
    color: black !important;
  }
}

/* ===========================
   BLOG HERO IMAGES
   Added: December 2025
=========================== */

.hero-image {
  width: 100%;
  max-width: 1200px;
  margin: 2rem auto;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

.hero-image img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

@media (max-width: 768px) {
  .hero-image {
    margin: 1rem auto;
    border-radius: 4px;
  }
}

/* ===========================
   NAVIGATION DROPDOWN
   Added: January 2025
=========================== */

.nav-dropdown {
  position: relative;
}

.nav-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  background: none;
  border: none;
  color: white;
  font-size: var(--text-sm);
  font-family: inherit;
  cursor: pointer;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  opacity: 0.9;
  transition: opacity var(--duration-fast), background var(--duration-fast);
}

.nav-dropdown-toggle:hover {
  opacity: 1;
  background: rgba(255, 255, 255, 0.15);
}

.dropdown-arrow {
  display: inline-block;
  width: 6px;
  height: 6px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  margin-left: var(--space-1);
  transition: transform var(--duration-fast);
}

.nav-dropdown:hover .dropdown-arrow,
.nav-dropdown:focus-within .dropdown-arrow {
  transform: rotate(-135deg);
}

.nav-dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 180px;
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--duration-normal) var(--ease-out);
  z-index: 1000;
  padding: var(--space-2) 0;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown-menu a {
  display: block;
  padding: var(--space-3) var(--space-4);
  color: var(--text-primary) !important;
  font-size: var(--text-sm);
  text-decoration: none;
  transition: background var(--duration-fast);
}

.nav-dropdown-menu a:hover {
  background: var(--color-primary-50);
  text-decoration: none;
}

.nav-dropdown-menu a.active {
  color: var(--primary-color) !important;
  font-weight: 600;
  background: var(--color-primary-50);
}

body.dark-mode .nav-dropdown-menu {
  background: var(--dark-surface-card);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

body.dark-mode .nav-dropdown-menu a {
  color: var(--dark-text-primary) !important;
}

body.dark-mode .nav-dropdown-menu a:hover,
body.dark-mode .nav-dropdown-menu a.active {
  background: rgba(102, 126, 234, 0.15);
}

/* Mobile nav dropdown */
@media (max-width: 768px) {
  .nav-dropdown {
    width: 100%;
  }

  .nav-dropdown-toggle {
    width: 100%;
    justify-content: center;
    padding: var(--space-3);
  }

  .nav-dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: rgba(255, 255, 255, 0.1);
    box-shadow: none;
    border-radius: var(--radius-md);
    margin-top: var(--space-2);
    display: none;
  }

  .nav-dropdown:hover .nav-dropdown-menu,
  .nav-dropdown:focus-within .nav-dropdown-menu {
    display: block;
  }

  .nav-dropdown-menu a {
    color: white !important;
    text-align: center;
  }

  .nav-dropdown-menu a:hover,
  .nav-dropdown-menu a.active {
    background: rgba(255, 255, 255, 0.15);
  }

  body.dark-mode .nav-dropdown-menu {
    background: rgba(255, 255, 255, 0.1);
  }

  body.dark-mode .nav-dropdown-menu a {
    color: white !important;
  }
}

/* ===========================
   POMODORO TIMER STYLES
   Added: January 2025
=========================== */

/* Pomodoro Section */
.pomodoro-section {
  text-align: center;
}

/* Mode Indicator */
.pomodoro-mode {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--gradient-primary);
  color: white;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
  transition: background var(--duration-normal);
}

.pomodoro-mode[data-mode="shortBreak"],
.pomodoro-mode[data-mode="longBreak"] {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.mode-icon {
  font-size: var(--text-lg);
}

.mode-text {
  letter-spacing: 0.025em;
}

/* Session Counter */
.session-counter {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.session-dots {
  display: flex;
  gap: var(--space-3);
}

.session-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid var(--primary-color);
  background: transparent;
  transition: all var(--duration-normal);
}

.session-dot.completed {
  background: var(--gradient-primary);
  border-color: transparent;
  box-shadow: 0 0 12px rgba(102, 126, 234, 0.5);
}

body.dark-mode .session-dot {
  border-color: var(--color-primary-500);
}

body.dark-mode .session-dot.completed {
  box-shadow: 0 0 16px rgba(102, 126, 234, 0.6);
}

.session-label {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

/* Pomodoro Display - Mode-based colors */
.pomodoro-display {
  font-family: var(--font-timer);
  font-variant-numeric: tabular-nums;
}

.pomodoro-display[data-mode="work"][data-state="running"] {
  color: var(--color-running);
}

.pomodoro-display[data-mode="shortBreak"][data-state="running"],
.pomodoro-display[data-mode="longBreak"][data-state="running"] {
  color: #10b981;
}

.pomodoro-display[data-mode="work"][data-state="paused"] {
  color: var(--color-paused);
}

.pomodoro-display[data-mode="shortBreak"][data-state="paused"],
.pomodoro-display[data-mode="longBreak"][data-state="paused"] {
  color: #f59e0b;
}

body.dark-mode .pomodoro-display[data-mode="work"][data-state="running"] {
  text-shadow: 0 0 40px rgba(16, 185, 129, 0.4);
}

body.dark-mode .pomodoro-display[data-mode="shortBreak"][data-state="running"],
body.dark-mode .pomodoro-display[data-mode="longBreak"][data-state="running"] {
  text-shadow: 0 0 40px rgba(16, 185, 129, 0.4);
}

/* Progress bar mode colors */
.pomodoro-progress .timer-progress-bar[data-mode="work"][data-state="running"] {
  background: var(--color-running);
}

.pomodoro-progress .timer-progress-bar[data-mode="shortBreak"][data-state="running"],
.pomodoro-progress .timer-progress-bar[data-mode="longBreak"][data-state="running"] {
  background: #10b981;
}

.pomodoro-progress .timer-progress-bar[data-mode="work"][data-state="paused"],
.pomodoro-progress .timer-progress-bar[data-mode="shortBreak"][data-state="paused"],
.pomodoro-progress .timer-progress-bar[data-mode="longBreak"][data-state="paused"] {
  background: var(--color-paused);
}

/* Pomodoro Buttons */
.pomodoro-buttons {
  gap: var(--space-3);
}

.pomodoro-buttons button {
  min-width: 100px;
}

/* Content Section */
.content-section {
  text-align: left;
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-light);
}

body.dark-mode .content-section {
  border-top-color: var(--dark-border);
}

.content-section h2 {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-4);
}

.content-section h3 {
  font-size: var(--text-xl);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.content-section p {
  margin-bottom: var(--space-4);
  line-height: 1.7;
}

.content-section ol,
.content-section ul {
  margin-bottom: var(--space-4);
  padding-left: var(--space-6);
}

.content-section li {
  margin-bottom: var(--space-2);
  line-height: 1.6;
}

.content-section li strong {
  color: var(--text-primary);
}

body.dark-mode .content-section li strong {
  color: var(--dark-text-primary);
}

/* Mobile adjustments for Pomodoro */
@media (max-width: 768px) {
  .pomodoro-mode {
    font-size: var(--text-xs);
    padding: var(--space-1) var(--space-3);
  }

  .session-dots {
    gap: var(--space-2);
  }

  .session-dot {
    width: 14px;
    height: 14px;
  }

  .pomodoro-buttons {
    flex-wrap: wrap;
  }

  .pomodoro-buttons button {
    min-width: 80px;
    font-size: var(--text-sm);
  }
}

@media (max-width: 480px) {
  .pomodoro-buttons button {
    flex: 1 1 40%;
  }

  .content-section {
    margin-top: var(--space-8);
    padding-top: var(--space-6);
  }

  .content-section h2 {
    font-size: var(--text-xl);
  }

  .content-section h3 {
    font-size: var(--text-lg);
  }
}

/* ===========================
   POMODORO SETTINGS MODAL
   Added: January 2025
=========================== */

.pomodoro-settings-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: var(--space-4);
}

.pomodoro-settings-overlay[hidden] {
  display: none;
}

.pomodoro-settings-modal {
  background: white;
  border-radius: var(--radius-2xl);
  max-width: 480px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  animation: modalSlideIn 0.3s var(--ease-out);
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

body.dark-mode .pomodoro-settings-modal {
  background: var(--dark-surface-card);
}

.settings-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--border-light);
}

body.dark-mode .settings-header {
  border-bottom-color: var(--dark-border);
}

.settings-header h3 {
  margin: 0;
  font-size: var(--text-lg);
  font-weight: 600;
}

.settings-close {
  background: none;
  border: none;
  padding: var(--space-2);
  cursor: pointer;
  color: var(--text-muted);
  border-radius: var(--radius-md);
  transition: all var(--duration-fast);
}

.settings-close:hover {
  background: var(--color-primary-50);
  color: var(--text-primary);
}

body.dark-mode .settings-close:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--dark-text-primary);
}

.settings-close svg {
  width: 20px;
  height: 20px;
}

.settings-content {
  padding: var(--space-6);
}

.setting-group {
  margin-bottom: var(--space-6);
}

.setting-group:last-child {
  margin-bottom: 0;
}

.setting-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-3);
}

body.dark-mode .setting-label {
  color: var(--dark-text-secondary);
}

.setting-options {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.setting-option {
  padding: var(--space-2) var(--space-4);
  border: 2px solid var(--border-light);
  border-radius: var(--radius-lg);
  background: transparent;
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  transition: all var(--duration-fast);
}

.setting-option:hover {
  border-color: var(--primary-color);
  background: var(--color-primary-50);
}

.setting-option.active {
  border-color: var(--primary-color);
  background: var(--gradient-primary);
  color: white;
}

body.dark-mode .setting-option {
  border-color: var(--dark-border);
  color: var(--dark-text-primary);
}

body.dark-mode .setting-option:hover {
  border-color: var(--color-primary-500);
  background: rgba(102, 126, 234, 0.15);
}

body.dark-mode .setting-option.active {
  border-color: transparent;
}

.setting-toggles {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.toggle-label {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
}

.toggle-label input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary-color);
  cursor: pointer;
}

.toggle-text {
  font-size: var(--text-sm);
  color: var(--text-primary);
}

body.dark-mode .toggle-text {
  color: var(--dark-text-primary);
}

.settings-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--border-light);
  background: var(--bg-secondary);
  border-radius: 0 0 var(--radius-2xl) var(--radius-2xl);
}

body.dark-mode .settings-footer {
  border-top-color: var(--dark-border);
  background: rgba(0, 0, 0, 0.2);
}

.settings-btn {
  padding: var(--space-2) var(--space-5);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--duration-fast);
}

.settings-btn-secondary {
  background: transparent;
  border: 2px solid var(--border-light);
  color: var(--text-secondary);
}

.settings-btn-secondary:hover {
  border-color: var(--text-muted);
  color: var(--text-primary);
}

body.dark-mode .settings-btn-secondary {
  border-color: var(--dark-border);
  color: var(--dark-text-secondary);
}

body.dark-mode .settings-btn-secondary:hover {
  border-color: var(--dark-text-muted);
  color: var(--dark-text-primary);
}

.settings-btn-primary {
  background: var(--gradient-primary);
  border: none;
  color: white;
}

.settings-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

/* Mobile responsive settings modal */
@media (max-width: 480px) {
  .pomodoro-settings-modal {
    max-height: 85vh;
  }

  .settings-header {
    padding: var(--space-4);
  }

  .settings-content {
    padding: var(--space-4);
  }

  .settings-footer {
    padding: var(--space-3) var(--space-4);
  }

  .setting-option {
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-xs);
  }
}

/* ===========================
   STOPWATCH STYLES
=========================== */

.stopwatch-section {
  text-align: center;
}

.stopwatch-section h1 {
  margin-bottom: var(--space-4);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Stopwatch Display - larger time with milliseconds */
.stopwatch-display {
  font-family: var(--font-timer);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  display: flex;
  align-items: baseline;
  justify-content: center;
  margin: var(--space-6) 0;
  font-size: clamp(2.5rem, 12vw, 5rem);
  color: var(--heading-color);
  transition: color 0.3s ease;
}

body.dark-mode .stopwatch-display {
  color: var(--dark-heading);
}

.stopwatch-display .time-part {
  display: inline-block;
}

.stopwatch-display .time-separator {
  opacity: 0.6;
  margin: 0 2px;
}

.stopwatch-display .ms-sep {
  font-size: 0.6em;
  margin: 0;
}

.stopwatch-display .milliseconds {
  font-size: 0.6em;
  opacity: 0.8;
  min-width: 2ch;
}

/* Stopwatch state colors */
.stopwatch-display[data-state="running"] {
  color: var(--success-color);
}

body.dark-mode .stopwatch-display[data-state="running"] {
  color: var(--success-light);
}

.stopwatch-display[data-state="paused"] {
  color: var(--warning-color);
}

body.dark-mode .stopwatch-display[data-state="paused"] {
  color: var(--warning-light);
}

/* Stopwatch Buttons */
.stopwatch-buttons {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-6);
}

.stopwatch-buttons button {
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-base);
  font-weight: 600;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all 0.2s ease;
  min-width: 100px;
}

.stopwatch-buttons .primary-btn {
  background: var(--gradient-primary);
  border: none;
  color: white;
  box-shadow: 0 4px 14px rgba(102, 126, 234, 0.3);
}

.stopwatch-buttons .primary-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.stopwatch-buttons .secondary-btn {
  background: var(--surface-secondary);
  border: 2px solid var(--card-border);
  color: var(--text-primary);
}

.stopwatch-buttons .secondary-btn:hover:not(:disabled) {
  border-color: var(--primary-color);
  background: var(--surface-card);
}

body.dark-mode .stopwatch-buttons .secondary-btn {
  background: var(--dark-surface-secondary);
  border-color: var(--dark-card-border);
  color: var(--dark-text-primary);
}

body.dark-mode .stopwatch-buttons .secondary-btn:hover:not(:disabled) {
  border-color: var(--primary-light);
  background: var(--dark-surface-card);
}

.stopwatch-buttons .reset-btn {
  background: transparent;
  border: 2px solid var(--danger-color);
  color: var(--danger-color);
}

.stopwatch-buttons .reset-btn:hover:not(:disabled) {
  background: var(--danger-color);
  color: white;
}

.stopwatch-buttons button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Lap Times Container */
.lap-container {
  max-width: 500px;
  margin: 0 auto var(--space-6);
  background: var(--surface-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--card-shadow);
  overflow: hidden;
}

body.dark-mode .lap-container {
  background: var(--dark-surface-card);
}

.lap-header {
  padding: var(--space-3) var(--space-4);
  margin: 0;
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  background: var(--surface-secondary);
  border-bottom: 1px solid var(--card-border);
  display: flex;
  justify-content: space-between;
}

body.dark-mode .lap-header {
  background: var(--dark-surface-secondary);
  color: var(--dark-text-secondary);
  border-bottom-color: var(--dark-card-border);
}

.lap-header::after {
  content: 'Split / Total';
  font-weight: 400;
  opacity: 0.7;
}

.lap-list {
  max-height: 250px;
  overflow-y: auto;
}

.lap-item {
  display: flex;
  align-items: center;
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--card-border);
  font-family: var(--font-timer);
  font-variant-numeric: tabular-nums;
}

body.dark-mode .lap-item {
  border-bottom-color: var(--dark-card-border);
}

.lap-item:last-child {
  border-bottom: none;
}

.lap-item:nth-child(odd) {
  background: var(--surface-secondary);
}

body.dark-mode .lap-item:nth-child(odd) {
  background: var(--dark-surface-secondary);
}

.lap-number {
  flex: 0 0 80px;
  font-weight: 600;
  color: var(--text-secondary);
  font-size: var(--text-sm);
}

body.dark-mode .lap-number {
  color: var(--dark-text-secondary);
}

.lap-split {
  flex: 1;
  text-align: right;
  font-size: var(--text-base);
  color: var(--primary-color);
  font-weight: 500;
}

body.dark-mode .lap-split {
  color: var(--primary-light);
}

.lap-total {
  flex: 0 0 120px;
  text-align: right;
  font-size: var(--text-sm);
  color: var(--text-muted);
}

body.dark-mode .lap-total {
  color: var(--dark-text-muted);
}

/* Stopwatch mobile responsive */
@media (max-width: 480px) {
  .stopwatch-display {
    font-size: clamp(2rem, 15vw, 3.5rem);
  }

  .stopwatch-buttons {
    gap: var(--space-2);
  }

  .stopwatch-buttons button {
    padding: var(--space-2) var(--space-4);
    min-width: 80px;
    font-size: var(--text-sm);
  }

  .lap-item {
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
  }

  .lap-number {
    flex: 0 0 60px;
  }

  .lap-total {
    flex: 0 0 100px;
  }
}

/* ===========================
   HIIT TIMER STYLES
   Added: January 2025
=========================== */

.hiit-section {
  text-align: center;
}

/* HIIT Mode Indicator */
.hiit-mode {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  color: white;
  margin-bottom: var(--space-4);
  transition: all var(--duration-normal);
}

.hiit-mode[data-mode="work"] {
  background: linear-gradient(135deg, #ef4444, #dc2626);
  box-shadow: 0 4px 15px rgba(239, 68, 68, 0.4);
}

.hiit-mode[data-mode="rest"] {
  background: linear-gradient(135deg, #22c55e, #16a34a);
  box-shadow: 0 4px 15px rgba(34, 197, 94, 0.4);
}

.hiit-mode[data-mode="complete"] {
  background: linear-gradient(135deg, #eab308, #ca8a04);
  box-shadow: 0 4px 15px rgba(234, 179, 8, 0.4);
}

.hiit-mode .mode-icon {
  font-size: var(--text-lg);
}

/* Round Tracker */
.round-tracker {
  display: inline-block;
  padding: var(--space-2) var(--space-4);
  background: var(--surface-secondary);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-4);
  transition: all var(--duration-normal);
}

.round-tracker #currentRound {
  font-weight: 700;
  color: var(--primary-color);
}

body.dark-mode .round-tracker {
  background: var(--dark-surface-secondary);
  color: var(--dark-text-secondary);
}

body.dark-mode .round-tracker #currentRound {
  color: var(--primary-light);
}

/* HIIT Display */
.hiit-display {
  font-family: var(--font-timer);
  font-variant-numeric: tabular-nums;
  font-size: clamp(4rem, 20vw, 8rem);
  transition: color var(--duration-normal);
}

.hiit-display[data-mode="work"][data-state="running"] {
  color: #ef4444;
}

.hiit-display[data-mode="rest"][data-state="running"] {
  color: #22c55e;
}

.hiit-display[data-mode="work"][data-state="paused"],
.hiit-display[data-mode="rest"][data-state="paused"] {
  color: var(--color-paused);
}

.hiit-display[data-state="complete"] {
  color: #eab308;
}

body.dark-mode .hiit-display[data-mode="work"][data-state="running"] {
  color: #f87171;
  text-shadow: 0 0 40px rgba(248, 113, 113, 0.4);
}

body.dark-mode .hiit-display[data-mode="rest"][data-state="running"] {
  color: #4ade80;
  text-shadow: 0 0 40px rgba(74, 222, 128, 0.4);
}

body.dark-mode .hiit-display[data-state="complete"] {
  color: #fde047;
  text-shadow: 0 0 40px rgba(253, 224, 71, 0.4);
}

/* HIIT Progress Bar */
.hiit-progress .timer-progress-bar[data-mode="work"][data-state="running"] {
  background: linear-gradient(90deg, #ef4444, #f87171);
}

.hiit-progress .timer-progress-bar[data-mode="rest"][data-state="running"] {
  background: linear-gradient(90deg, #22c55e, #4ade80);
}

.hiit-progress .timer-progress-bar[data-state="paused"] {
  background: var(--color-paused);
}

.hiit-progress .timer-progress-bar[data-state="complete"] {
  background: linear-gradient(90deg, #eab308, #fde047);
  width: 100% !important;
}

/* HIIT Buttons */
.hiit-buttons {
  gap: var(--space-3);
}

.hiit-buttons button {
  min-width: 100px;
}

/* HIIT Settings Modal */
.hiit-settings-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: var(--space-4);
}

.hiit-settings-modal {
  background: var(--surface-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  max-width: 480px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  animation: modalSlideIn var(--duration-normal) ease-out;
}

body.dark-mode .hiit-settings-modal {
  background: var(--dark-surface-card);
  border: 1px solid var(--dark-border);
}

/* Mobile adjustments for HIIT */
@media (max-width: 768px) {
  .hiit-mode {
    font-size: var(--text-xs);
    padding: var(--space-1) var(--space-3);
  }

  .round-tracker {
    font-size: var(--text-xs);
    padding: var(--space-1) var(--space-3);
  }

  .hiit-buttons {
    flex-wrap: wrap;
  }

  .hiit-buttons button {
    min-width: 80px;
    font-size: var(--text-sm);
  }
}

@media (max-width: 480px) {
  .hiit-display {
    font-size: clamp(3rem, 18vw, 5rem);
  }

  .hiit-buttons button {
    flex: 1 1 40%;
  }
}

/* ===========================
   ALARM CLOCK STYLES
   Added: January 2026
=========================== */

.alarm-section {
  text-align: center;
}

/* Current Time Display - Large Digital Clock */
.current-time-display {
  font-family: var(--font-timer);
  font-size: clamp(4rem, 18vw, 8rem);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  color: var(--heading-color);
  line-height: 1;
  margin: var(--space-4) 0;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0;
}

body.dark-mode .current-time-display {
  color: var(--dark-heading);
}

.current-time-display .time-separator {
  opacity: 0.5;
  margin: 0 var(--space-1);
}

.current-time-display .time-seconds {
  font-size: 0.5em;
  opacity: 0.7;
}

.current-time-display .time-period {
  font-size: 0.3em;
  margin-left: var(--space-2);
  font-weight: 500;
  vertical-align: super;
}

.current-date {
  font-size: var(--text-base);
  color: var(--text-muted);
  margin-bottom: var(--space-6);
}

/* Next Alarm Indicator */
.next-alarm-indicator {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), rgba(16, 185, 129, 0.1));
  border: 1px solid rgba(34, 197, 94, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--color-success);
  margin-bottom: var(--space-6);
}

body.dark-mode .next-alarm-indicator {
  background: rgba(34, 197, 94, 0.15);
  border-color: rgba(34, 197, 94, 0.3);
}

.alarm-icon {
  font-size: var(--text-lg);
}

/* Add Alarm Section */
.add-alarm-section {
  margin-bottom: var(--space-6);
}

.add-alarm-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: var(--radius-full);
  font-size: var(--text-base);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--duration-fast);
  box-shadow: var(--shadow-md);
}

.add-alarm-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow-primary);
}

.add-alarm-btn svg {
  width: 20px;
  height: 20px;
}

/* Alarm List */
.alarm-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 500px;
  margin: 0 auto var(--space-6);
}

/* Alarm Item Card */
.alarm-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--surface-card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-xl);
  transition: all var(--duration-fast);
  text-align: left;
}

.alarm-item:hover {
  box-shadow: var(--shadow-md);
}

.alarm-item.disabled {
  opacity: 0.5;
}

body.dark-mode .alarm-item {
  background: var(--dark-surface-card);
  border-color: var(--dark-card-border);
}

/* Alarm Toggle Switch */
.alarm-toggle {
  position: relative;
  width: 50px;
  height: 28px;
  flex-shrink: 0;
  cursor: pointer;
}

.alarm-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.alarm-toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--card-border);
  border-radius: var(--radius-full);
  transition: all var(--duration-fast);
}

.alarm-toggle-slider:before {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  left: 3px;
  bottom: 3px;
  background: white;
  border-radius: 50%;
  transition: all var(--duration-fast);
  box-shadow: var(--shadow-sm);
}

.alarm-toggle input:checked + .alarm-toggle-slider {
  background: var(--color-success);
}

.alarm-toggle input:checked + .alarm-toggle-slider:before {
  transform: translateX(22px);
}

body.dark-mode .alarm-toggle-slider {
  background: var(--dark-card-border);
}

/* Alarm Info */
.alarm-info {
  flex: 1;
  min-width: 0;
}

.alarm-time-display {
  font-size: var(--text-2xl);
  font-weight: 600;
  font-family: var(--font-timer);
  font-variant-numeric: tabular-nums;
  color: var(--heading-color);
}

body.dark-mode .alarm-time-display {
  color: var(--dark-heading);
}

.alarm-label-display {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-top: var(--space-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.alarm-repeat-badge {
  display: inline-block;
  padding: var(--space-1) var(--space-2);
  background: var(--color-primary-100);
  color: var(--color-primary-700);
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-md);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: var(--space-1);
}

body.dark-mode .alarm-repeat-badge {
  background: rgba(102, 126, 234, 0.2);
  color: var(--color-primary-300);
}

.alarm-snoozed-badge {
  display: inline-block;
  padding: var(--space-1) var(--space-2);
  background: rgba(234, 179, 8, 0.15);
  color: #ca8a04;
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-md);
  margin-left: var(--space-2);
}

/* Alarm Actions */
.alarm-actions {
  display: flex;
  gap: var(--space-2);
  flex-shrink: 0;
}

.alarm-edit-btn,
.alarm-delete-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: none;
  background: var(--surface-secondary);
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--duration-fast);
}

.alarm-edit-btn:hover {
  background: var(--color-primary-100);
  color: var(--primary-color);
}

.alarm-delete-btn:hover {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-error);
}

body.dark-mode .alarm-edit-btn,
body.dark-mode .alarm-delete-btn {
  background: var(--dark-surface-secondary);
}

body.dark-mode .alarm-edit-btn:hover {
  background: rgba(102, 126, 234, 0.2);
}

body.dark-mode .alarm-delete-btn:hover {
  background: rgba(239, 68, 68, 0.2);
}

/* Empty State */
.alarm-empty-state {
  padding: var(--space-8);
  text-align: center;
  color: var(--text-muted);
}

.alarm-empty-state .empty-icon {
  font-size: 4rem;
  display: block;
  margin-bottom: var(--space-4);
  opacity: 0.5;
}

.alarm-empty-state .empty-hint {
  font-size: var(--text-sm);
  margin-top: var(--space-2);
}

/* Alarm Modal */
.alarm-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: var(--space-4);
}

.alarm-modal {
  background: var(--surface-card);
  border-radius: var(--radius-2xl);
  max-width: 480px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  animation: modalSlideIn 0.3s var(--ease-out);
}

body.dark-mode .alarm-modal {
  background: var(--dark-surface-card);
}

@keyframes modalSlideIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Time Picker */
.alarm-time-picker {
  margin-bottom: var(--space-4);
}

.time-picker-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.time-select {
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-2xl);
  font-family: var(--font-timer);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  border: 2px solid var(--card-border);
  border-radius: var(--radius-lg);
  background: var(--surface-card);
  color: var(--heading-color);
  cursor: pointer;
  transition: all var(--duration-fast);
  text-align: center;
  min-width: 80px;
  appearance: none;
  -webkit-appearance: none;
}

.time-select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

body.dark-mode .time-select {
  background: var(--dark-surface-card);
  border-color: var(--dark-card-border);
  color: var(--dark-heading);
}

.time-colon {
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--text-muted);
}

.period-select {
  font-size: var(--text-lg);
  min-width: 70px;
}

/* Alarm Label Input */
.alarm-label-input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  border: 2px solid var(--card-border);
  border-radius: var(--radius-lg);
  background: var(--surface-card);
  color: var(--heading-color);
  transition: all var(--duration-fast);
}

.alarm-label-input:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

.alarm-label-input::placeholder {
  color: var(--text-muted);
}

body.dark-mode .alarm-label-input {
  background: var(--dark-surface-card);
  border-color: var(--dark-card-border);
  color: var(--dark-heading);
}

/* Custom Days Checkboxes */
.custom-days-group {
  margin-top: var(--space-4);
}

.day-checkboxes {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  justify-content: center;
}

.day-checkbox {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  cursor: pointer;
}

.day-checkbox input {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  border: 2px solid var(--card-border);
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  transition: all var(--duration-fast);
  background: var(--surface-card);
}

.day-checkbox input:checked {
  background: var(--gradient-primary);
  border-color: transparent;
}

.day-checkbox input:checked::after {
  content: "\2713";
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: white;
  font-size: var(--text-lg);
  font-weight: 600;
}

.day-checkbox span {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-secondary);
}

body.dark-mode .day-checkbox input {
  background: var(--dark-surface-card);
  border-color: var(--dark-card-border);
}

/* Alarm Ringing Overlay */
.alarm-ringing-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 300;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.alarm-ringing-modal {
  text-align: center;
  padding: var(--space-8);
}

.ringing-icon {
  font-size: 5rem;
  animation: shake 0.5s ease infinite;
  display: block;
  margin-bottom: var(--space-4);
}

@keyframes shake {
  0%, 100% { transform: rotate(-15deg); }
  50% { transform: rotate(15deg); }
}

.ringing-time {
  font-family: var(--font-timer);
  font-size: clamp(3rem, 15vw, 6rem);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: white;
  margin-bottom: var(--space-2);
}

.ringing-label {
  font-size: var(--text-2xl);
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-8);
}

.ringing-buttons {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

.snooze-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-6);
  background: rgba(255, 255, 255, 0.15);
  border: 2px solid rgba(255, 255, 255, 0.3);
  color: white;
  border-radius: var(--radius-full);
  font-size: var(--text-lg);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--duration-fast);
}

.snooze-btn:hover {
  background: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.5);
}

.dismiss-btn {
  padding: var(--space-4) var(--space-8);
  background: var(--color-error);
  border: none;
  color: white;
  border-radius: var(--radius-full);
  font-size: var(--text-lg);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--duration-fast);
  box-shadow: 0 4px 20px rgba(239, 68, 68, 0.4);
}

.dismiss-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 30px rgba(239, 68, 68, 0.5);
}

/* Settings Overlay */
.alarm-settings-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: var(--space-4);
}

.alarm-settings-modal {
  background: var(--surface-card);
  border-radius: var(--radius-2xl);
  max-width: 400px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  animation: modalSlideIn 0.3s var(--ease-out);
}

body.dark-mode .alarm-settings-modal {
  background: var(--dark-surface-card);
}

.setting-hint {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: var(--space-2);
}

/* Repeat Options - wrap for better mobile display */
.repeat-options {
  flex-wrap: wrap;
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .current-time-display {
    font-size: clamp(3rem, 15vw, 5rem);
  }

  .alarm-item {
    flex-wrap: wrap;
  }

  .alarm-actions {
    width: 100%;
    justify-content: flex-end;
    margin-top: var(--space-2);
  }

  .ringing-buttons {
    flex-direction: column;
    gap: var(--space-3);
  }

  .snooze-btn,
  .dismiss-btn {
    width: 100%;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .current-time-display {
    font-size: clamp(2.5rem, 18vw, 4rem);
  }

  .time-select {
    font-size: var(--text-xl);
    padding: var(--space-2) var(--space-3);
    min-width: 65px;
  }

  .day-checkbox input {
    width: 35px;
    height: 35px;
  }

  .alarm-time-display {
    font-size: var(--text-xl);
  }

  .repeat-options .setting-option {
    font-size: var(--text-xs);
    padding: var(--space-2);
  }
}