/* ============================================
   CHRONO - Modern Stopwatch PWA
   Created by Dev.Croney-Tech
   ============================================ */

/* ============================================
   CSS Custom Properties (Design Tokens)
   ============================================ */
:root {
    /* Colors - Light Theme */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --bg-glass: rgba(255, 255, 255, 0.7);
    --bg-glass-strong: rgba(255, 255, 255, 0.9);

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;

    --border-color: rgba(15, 23, 42, 0.1);
    --border-color-strong: rgba(15, 23, 42, 0.2);

    /* Accent Colors */
    --accent-indigo: #6366f1;
    --accent-violet: #8b5cf6;
    --accent-pink: #ec4899;
    --accent-rose: #f43f5e;
    --accent-orange: #f97316;
    --accent-amber: #f59e0b;
    --accent-emerald: #10b981;
    --accent-cyan: #06b6d4;

    /* Current Accent (default: indigo) */
    --accent: var(--accent-indigo);
    --accent-light: rgba(99, 102, 241, 0.1);
    --accent-glow: rgba(99, 102, 241, 0.4);

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 40px var(--accent-glow);

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --font-digital: 'Orbitron', sans-serif;

    /* Current display font */
    --font-display: var(--font-digital);

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --bg-glass: rgba(30, 41, 59, 0.8);
    --bg-glass-strong: rgba(30, 41, 59, 0.95);

    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-tertiary: #64748b;

    --border-color: rgba(248, 250, 252, 0.1);
    --border-color-strong: rgba(248, 250, 252, 0.2);

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
}

/* Accent Color Variations */
[data-accent="indigo"] {
    --accent: #6366f1;
    --accent-light: rgba(99, 102, 241, 0.15);
    --accent-glow: rgba(99, 102, 241, 0.4);
}

[data-accent="violet"] {
    --accent: #8b5cf6;
    --accent-light: rgba(139, 92, 246, 0.15);
    --accent-glow: rgba(139, 92, 246, 0.4);
}

[data-accent="pink"] {
    --accent: #ec4899;
    --accent-light: rgba(236, 72, 153, 0.15);
    --accent-glow: rgba(236, 72, 153, 0.4);
}

[data-accent="rose"] {
    --accent: #f43f5e;
    --accent-light: rgba(244, 63, 94, 0.15);
    --accent-glow: rgba(244, 63, 94, 0.4);
}

[data-accent="orange"] {
    --accent: #f97316;
    --accent-light: rgba(249, 115, 22, 0.15);
    --accent-glow: rgba(249, 115, 22, 0.4);
}

[data-accent="amber"] {
    --accent: #f59e0b;
    --accent-light: rgba(245, 158, 11, 0.15);
    --accent-glow: rgba(245, 158, 11, 0.4);
}

[data-accent="emerald"] {
    --accent: #10b981;
    --accent-light: rgba(16, 185, 129, 0.15);
    --accent-glow: rgba(16, 185, 129, 0.4);
}

[data-accent="cyan"] {
    --accent: #06b6d4;
    --accent-light: rgba(6, 182, 212, 0.15);
    --accent-glow: rgba(6, 182, 212, 0.4);
}

/* Font Variations */
[data-font="digital"] {
    --font-display: 'Orbitron', sans-serif;
}

[data-font="modern"] {
    --font-display: 'Inter', sans-serif;
}

[data-font="mono"] {
    --font-display: 'JetBrains Mono', monospace;
}

/* ============================================
   Base Styles & Reset
   ============================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    min-height: 100dvh;
    overflow-x: hidden;
    transition: background-color var(--transition-slow), color var(--transition-slow);
}

/* Animated Background Gradient */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse 80% 50% at 20% -20%, var(--accent-light), transparent),
        radial-gradient(ellipse 60% 40% at 80% 100%, var(--accent-light), transparent);
    pointer-events: none;
    z-index: -1;
    opacity: 0.8;
    transition: opacity var(--transition-slow);
}

/* Remove ugly tap highlight on mobile */
* {
    -webkit-tap-highlight-color: transparent;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: opacity var(--transition-fast);
}

a:hover {
    opacity: 0.8;
}

/* ============================================
   App Container
   ============================================ */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-height: 100dvh;
    max-width: 600px;
    margin: 0 auto;
    margin: 0 auto;
    padding: var(--spacing-md);
    position: relative;
    z-index: 1;
    /* Ensure above background */
}

/* ============================================
   Header
   ============================================ */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-icon {
    width: 28px;
    height: 28px;
    color: var(--accent);
}

.logo-text {
    font-family: var(--font-digital);
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    background: linear-gradient(135deg, var(--accent), var(--text-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Language Selector */
.language-selector {
    position: relative;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.lang-btn:hover {
    background: var(--bg-glass-strong);
    border-color: var(--border-color-strong);
}

.lang-flag {
    font-weight: 600;
}

.chevron-icon {
    width: 16px;
    height: 16px;
    color: var(--text-tertiary);
    transition: transform var(--transition-fast);
}

.language-selector.open .chevron-icon {
    transform: rotate(180deg);
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 140px;
    background: var(--bg-glass-strong);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-fast);
    z-index: 100;
}

.language-selector.open .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-option {
    display: block;
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    font-size: 0.875rem;
    color: var(--text-primary);
    transition: background-color var(--transition-fast);
}

.lang-option:hover {
    background: var(--accent-light);
}

.lang-option.active {
    background: var(--accent-light);
    color: var(--accent);
    font-weight: 500;
}

/* Settings Button */
.settings-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.settings-btn svg {
    width: 20px;
    height: 20px;
    color: var(--text-secondary);
    transition: color var(--transition-fast), transform var(--transition-slow);
}

.settings-btn:hover {
    background: var(--bg-glass-strong);
    border-color: var(--border-color-strong);
}

.settings-btn:hover svg {
    color: var(--accent);
    transform: rotate(45deg);
}

/* ============================================
   Main Content
   ============================================ */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.stopwatch-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xl);
}

/* ============================================
   Time Display
   ============================================ */
.time-display {
    display: flex;
    align-items: baseline;
    justify-content: center;
    padding: var(--spacing-xl) var(--spacing-lg);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
}

.time-display:hover {
    box-shadow: var(--shadow-glow);
}

.time-display.running {
    box-shadow: var(--shadow-glow);
}

.time-segment {
    font-family: var(--font-display);
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.02em;
    transition: color var(--transition-fast);
}

.hours,
.minutes,
.seconds {
    font-size: clamp(2.5rem, 12vw, 4.5rem);
    color: var(--text-primary);
    width: 2ch;
    /* Fixed width for 2 digits */
    text-align: center;
    display: inline-block;
}

.milliseconds {
    font-size: clamp(1.25rem, 6vw, 2rem);
    color: var(--text-tertiary);
    min-width: 3ch;
}

.time-separator {
    font-family: var(--font-display);
    font-size: clamp(2rem, 10vw, 3.5rem);
    font-weight: 300;
    color: var(--text-tertiary);
    margin: 0 2px;
}

.time-separator-ms {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 7vw, 2.5rem);
    font-weight: 300;
    color: var(--text-tertiary);
    margin: 0 2px;
}

.time-display.running .hours,
.time-display.running .minutes,
.time-display.running .seconds {
    color: var(--accent);
}

/* ============================================
   Control Buttons
   ============================================ */
.controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
}

.control-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.control-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.control-btn:not(:disabled):hover {
    transform: scale(1.05);
}

.control-btn:not(:disabled):active {
    transform: scale(0.95);
}

/* Start/Pause Button */
.start-btn {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 80%, black));
    box-shadow: 0 8px 24px var(--accent-glow);
}

.start-btn svg {
    width: 32px;
    height: 32px;
    color: white;
}

.start-btn .play-icon {
    margin-left: 4px;
}

.start-btn:not(:disabled):hover {
    box-shadow: 0 12px 32px var(--accent-glow);
}

.start-btn.running {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
}

.start-btn.running:not(:disabled):hover {
    box-shadow: 0 12px 32px rgba(245, 158, 11, 0.5);
}

.hidden {
    display: none !important;
}

/* Reset & Lap Buttons */
.reset-btn,
.lap-btn {
    width: 56px;
    height: 56px;
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
}

.reset-btn svg,
.lap-btn svg {
    width: 24px;
    height: 24px;
    color: var(--text-secondary);
}

.reset-btn:not(:disabled):hover,
.lap-btn:not(:disabled):hover {
    background: var(--bg-glass-strong);
    border-color: var(--accent);
}

.reset-btn:not(:disabled):hover svg,
.lap-btn:not(:disabled):hover svg {
    color: var(--accent);
}

/* ============================================
   Laps Section
   ============================================ */
.laps-container {
    width: 100%;
    max-width: 400px;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    /* Added check */
    transform: translateY(20px);
    transition: all var(--transition-slow);
}

.laps-container.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.laps-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.laps-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.clear-laps-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.clear-laps-btn svg {
    width: 16px;
    height: 16px;
    color: var(--text-tertiary);
}

.clear-laps-btn:hover {
    background: rgba(244, 63, 94, 0.1);
}

.clear-laps-btn:hover svg {
    color: #f43f5e;
}

.laps-list {
    max-height: 200px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--border-color-strong) transparent;
}

.laps-list::-webkit-scrollbar {
    width: 6px;
}

.laps-list::-webkit-scrollbar-track {
    background: transparent;
}

.laps-list::-webkit-scrollbar-thumb {
    background: var(--border-color-strong);
    border-radius: var(--radius-full);
}

.laps-empty {
    padding: var(--spacing-xl);
    text-align: center;
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

.lap-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    animation: slideIn var(--transition-slow) ease-out;
}

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

.lap-item.best {
    background: rgba(16, 185, 129, 0.1);
}

.lap-item.worst {
    background: rgba(244, 63, 94, 0.05);
}

.lap-number {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
}

.lap-times {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 2px;
}

.lap-time {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.lap-diff {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.lap-item.best .lap-number,
.lap-item.best .lap-time {
    color: #10b981;
}

.lap-item.worst .lap-number,
.lap-item.worst .lap-time {
    color: #f43f5e;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: var(--spacing-lg) 0;
    text-align: center;
    font-size: 0.8125rem;
    color: var(--text-tertiary);
}

.footer .heart {
    color: #f43f5e;
    display: inline-block;
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }
}

/* ============================================
   Modal
   ============================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 1000;
    pointer-events: none;
    /* Prevent blocking clicks when hidden */
}

.modal-overlay.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.modal {
    width: 100%;
    max-width: 420px;
    max-height: 85vh;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    transform: scale(0.9) translateY(20px);
    transition: transform var(--transition-bounce);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-overlay.open .modal {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.modal-close svg {
    width: 20px;
    height: 20px;
    color: var(--text-tertiary);
}

.modal-close:hover {
    background: var(--bg-tertiary);
}

.modal-close:hover svg {
    color: var(--text-primary);
}

.modal-content {
    padding: var(--spacing-lg);
    overflow-y: auto;
    flex: 1;
}

/* Settings Groups */
.settings-group {
    margin-bottom: var(--spacing-xl);
}

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

.settings-label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
}

/* Theme Options */
.theme-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
}

.theme-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.theme-option svg {
    width: 24px;
    height: 24px;
}

.theme-option:hover {
    background: var(--accent-light);
    color: var(--accent);
}

.theme-option.active {
    border-color: var(--accent);
    background: var(--accent-light);
    color: var(--accent);
}

/* Color Options */
.color-options {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.color-option {
    width: 40px;
    height: 40px;
    background: var(--color);
    border: 3px solid transparent;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    position: relative;
}

.color-option:hover {
    transform: scale(1.1);
}

.color-option.active {
    border-color: var(--text-primary);
    box-shadow: 0 0 0 2px var(--bg-secondary), 0 0 0 4px var(--color);
}

.color-option.active::after {
    content: '✓';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1rem;
    font-weight: 700;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

/* Font Options */
.font-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
}

.font-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.font-option:hover {
    background: var(--accent-light);
    color: var(--accent);
}

.font-option.active {
    border-color: var(--accent);
    background: var(--accent-light);
    color: var(--accent);
}

.font-preview {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.font-digital {
    font-family: 'Orbitron', sans-serif;
}

.font-modern {
    font-family: 'Inter', sans-serif;
}

.font-mono {
    font-family: 'JetBrains Mono', monospace;
}

/* Toggle Button */
.toggle-container {
    display: flex;
    align-items: center;
}

.toggle-btn {
    width: 52px;
    height: 28px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    padding: 2px;
    transition: all var(--transition-fast);
}

.toggle-slider {
    display: block;
    width: 22px;
    height: 22px;
    background: white;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast);
}

.toggle-btn.active {
    background: var(--accent);
    border-color: var(--accent);
}

.toggle-btn.active .toggle-slider {
    transform: translateX(24px);
}

/* Reset Settings Button */
.settings-footer {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.reset-settings-btn {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.reset-settings-btn:hover {
    background: rgba(244, 63, 94, 0.1);
    border-color: rgba(244, 63, 94, 0.3);
    color: #f43f5e;
}

/* ============================================
   Shortcuts Toast
   ============================================ */
.shortcuts-toast {
    position: fixed;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--bg-glass-strong);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-slow);
    z-index: 50;
}

.shortcuts-toast.visible {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.shortcut-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.shortcut-item kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    height: 24px;
    padding: 0 var(--spacing-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 480px) {
    .app-container {
        padding: var(--spacing-sm);
    }

    .header {
        margin-bottom: var(--spacing-md);
    }

    .time-display {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .controls {
        gap: var(--spacing-md);
    }

    .start-btn {
        width: 72px;
        height: 72px;
    }

    .start-btn svg {
        width: 28px;
        height: 28px;
    }

    .reset-btn,
    .lap-btn {
        width: 48px;
        height: 48px;
    }

    .reset-btn svg,
    .lap-btn svg {
        width: 20px;
        height: 20px;
    }

    .shortcuts-toast {
        display: none;
    }
}

@media (min-width: 768px) {
    .time-display {
        padding: var(--spacing-2xl);
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {

    .header-actions,
    .controls,
    .footer,
    .modal-overlay,
    .shortcuts-toast {
        display: none !important;
    }

    .laps-container {
        opacity: 1 !important;
        transform: none !important;
        box-shadow: none !important;
    }
}

/* ============================================
   Install Button
   ============================================ */
.install-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--accent);
    color: white;
    border-radius: var(--radius-lg);
    font-size: 0.875rem;
    font-weight: 600;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 12px var(--accent-glow);
    margin-right: var(--spacing-sm);
}

.install-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px var(--accent-glow);
}

.install-btn svg {
    width: 16px;
    height: 16px;
}

/* ============================================
   Mode Switcher
   ============================================ */
.mode-switcher {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    background: var(--bg-glass);
    padding: var(--spacing-xs);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    align-self: center;
}

.mode-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--text-secondary);
    transition: all var(--transition-base);
}

.mode-btn svg {
    width: 18px;
    height: 18px;
    opacity: 0.7;
}

.mode-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    /* Very subtle hover */
}

.mode-btn.active {
    background: var(--bg-secondary);
    color: var(--accent);
    box-shadow: var(--shadow-sm);
    font-weight: 600;
}

.mode-btn.active svg {
    opacity: 1;
}

/* ============================================
   Timer Input
   ============================================ */
.timer-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xl);
    width: 100%;
}

.timer-input-container {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) var(--spacing-lg);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
}

.timer-input-group {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.timer-input-group input {
    width: 2ch;
    background: transparent;
    border: none;
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 12vw, 4.5rem);
    font-weight: 700;
    color: var(--text-primary);
    text-align: center;
    padding: 0;
    margin: 0;
    outline: none;
    appearance: textfield;
    -moz-appearance: textfield;
}

.timer-input-group input:focus {
    color: var(--accent);
}

.timer-input-group input::placeholder {
    color: var(--text-tertiary);
    opacity: 0.5;
}

.timer-input-group input::-webkit-outer-spin-button,
.timer-input-group input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.timer-label {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-tertiary);
    margin-top: -10px;
}

.timer-separator {
    font-family: var(--font-display);
    font-size: clamp(2rem, 10vw, 3.5rem);
    font-weight: 300;
    color: var(--text-tertiary);
    margin: 0 var(--spacing-xs);
    padding-bottom: 20px;
    /* Align with input baseline roughly */
}

/* Animation for timer alarm */
@keyframes alarm-flash {

    0%,
    50%,
    100% {
        opacity: 1;
    }

    25%,
    75% {
        opacity: 0.5;
        color: var(--accent-rose);
    }
}

.timer-alarm {
    animation: alarm-flash 1s infinite;
}

/* Timer controls specifics */
#timerInput.hidden {
    display: none;
}

#timerDisplay.hidden {
    display: none;
}

/* View Container */
.view-container {
    width: 100%;
    display: flex;
    justify-content: center;
    transition: opacity var(--transition-base), transform var(--transition-base);
    opacity: 1;
    transform: translateY(0);
}

.view-container.hidden {
    display: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
}