@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@300;400;600;700;900&family=Playfair+Display:ital,wght@0,400;0,700;1,400&family=Share+Tech+Mono&family=Quicksand:wght@400;600&family=Cinzel:wght@400;700&display=swap');

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

/* --- Sleek Custom Cursor & Film Grain --- */
.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9998;
    pointer-events: none;
    filter: url(#noiseFilter);
    opacity: 0.85;
}

#custom-cursor {
    width: 8px;
    height: 8px;
    background: var(--accent-color);
    border-radius: 50%;
    position: fixed;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 10000;
    transition: width 0.2s, height 0.2s, background-color 0.2s;
    opacity: 0;
}

#custom-cursor-ring {
    width: 32px;
    height: 32px;
    border: 1px solid var(--accent-color);
    border-radius: 50%;
    position: fixed;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 9999;
    box-shadow: 0 0 10px var(--glow-color);
    transition: width 0.3s cubic-bezier(0.16, 1, 0.3, 1), 
                height 0.3s cubic-bezier(0.16, 1, 0.3, 1), 
                border-color 0.3s, 
                background-color 0.3s;
    opacity: 0;
}

#custom-cursor.hovered {
    background-color: var(--text-primary);
    width: 4px;
    height: 4px;
}

#custom-cursor-ring.hovered {
    width: 48px;
    height: 48px;
    border-color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

@media (pointer: fine) {
    body.custom-cursor-active,
    body.custom-cursor-active a,
    body.custom-cursor-active button,
    body.custom-cursor-active select,
    body.custom-cursor-active input,
    body.custom-cursor-active .preset-tag,
    body.custom-cursor-active .wizard-option,
    body.custom-cursor-active .faq-trigger {
        cursor: none !important;
    }
}

:root {
    /* Base Dimensions & Speeds */
    --transition-fast: 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-normal: 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    --transition-slow: 0.8s cubic-bezier(0.33, 1, 0.68, 1);
    
    /* Default Dark Variables */
    --bg-primary: radial-gradient(circle at center, #111827 0%, #030712 100%);
    --bg-secondary: rgba(17, 24, 39, 0.65);
    --bg-panel: rgba(3, 7, 18, 0.4);
    --accent-color: #6366f1;
    --accent-hover: #4f46e5;
    --glow-color: rgba(99, 102, 241, 0.3);
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --panel-border: rgba(255, 255, 255, 0.08);
    --panel-blur: 16px;
    --font-ui: 'Inter', sans-serif;
    --font-display: 'Outfit', sans-serif;
    --accent-glow: 0 0 15px var(--glow-color);
}

/* --- Theme 1: The Glass Conservatory (Cozy / Glassmorphic / Organic) --- */
.theme-conservatory {
    --bg-primary: linear-gradient(135deg, #13241d 0%, #09100c 100%);
    --bg-secondary: rgba(25, 41, 34, 0.55);
    --bg-panel: rgba(12, 20, 16, 0.6);
    --accent-color: #68d391;
    --accent-hover: #48bb78;
    --glow-color: rgba(104, 211, 145, 0.2);
    --text-primary: #e6fffa;
    --text-secondary: #b2f5ea;
    --text-muted: #4a5568;
    --panel-border: rgba(104, 211, 145, 0.12);
    --panel-blur: 24px;
    --font-ui: 'Quicksand', sans-serif;
    --font-display: 'Playfair Display', serif;
}

/* --- Theme 2: Cyberpunk Window Seat (Futuristic / Neon / Moody) --- */
.theme-cyberpunk {
    --bg-primary: radial-gradient(circle at center, #0b071a 0%, #030108 100%);
    --bg-secondary: rgba(18, 9, 36, 0.7);
    --bg-panel: rgba(8, 2, 18, 0.85);
    --accent-color: #ff007f;
    --accent-hover: #d20066;
    --glow-color: rgba(255, 0, 127, 0.45);
    --text-primary: #00ffff;
    --text-secondary: #ff007f;
    --text-muted: #4e3570;
    --panel-border: rgba(0, 255, 255, 0.15);
    --panel-blur: 12px;
    --font-ui: 'Share Tech Mono', monospace;
    --font-display: 'Share Tech Mono', monospace;
}

/* --- Theme 3: Minimalist Celestial (Ethereal / Space / Cosmic) --- */
.theme-celestial {
    --bg-primary: radial-gradient(circle at center, #0f172a 0%, #020617 100%);
    --bg-secondary: rgba(15, 23, 42, 0.45);
    --bg-panel: rgba(2, 6, 23, 0.4);
    --accent-color: #a855f7;
    --accent-hover: #c084fc;
    --glow-color: rgba(168, 85, 247, 0.3);
    --text-primary: #faf5ff;
    --text-secondary: #e9d5ff;
    --text-muted: #475569;
    --panel-border: rgba(168, 85, 247, 0.1);
    --panel-blur: 30px;
    --font-ui: 'Inter', sans-serif;
    --font-display: 'Outfit', sans-serif;
}

/* --- Theme 4: Ancient Library (Academic / Leather / Fireplace) --- */
.theme-library {
    --bg-primary: linear-gradient(180deg, #1c140d 0%, #0c0805 100%);
    --bg-secondary: rgba(36, 24, 15, 0.6);
    --bg-panel: rgba(18, 12, 7, 0.7);
    --accent-color: #d97706;
    --accent-hover: #b45309;
    --glow-color: rgba(217, 119, 6, 0.25);
    --text-primary: #fef3c7;
    --text-secondary: #fcd34d;
    --text-muted: #57534e;
    --panel-border: rgba(217, 119, 6, 0.1);
    --panel-blur: 15px;
    --font-ui: 'Playfair Display', serif;
    --font-display: 'Cinzel', serif;
}

/* --- Theme 5: Tropical Beach Hut (Warm Ocean / Palms) --- */
.theme-beach {
    --bg-primary: linear-gradient(to top, #0f242c 0%, #061014 100%);
    --bg-secondary: rgba(15, 36, 44, 0.6);
    --bg-panel: rgba(6, 16, 20, 0.75);
    --accent-color: #38bdf8;
    --accent-hover: #0ea5e9;
    --glow-color: rgba(56, 189, 248, 0.2);
    --text-primary: #f0f9ff;
    --text-secondary: #bae6fd;
    --text-muted: #334155;
    --panel-border: rgba(56, 189, 248, 0.1);
    --panel-blur: 20px;
    --font-ui: 'Quicksand', sans-serif;
    --font-display: 'Outfit', sans-serif;
}

/* --- Theme 6: Midnight Train Cabin (Rhythmic / Travel) --- */
.theme-train {
    --bg-primary: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    --bg-secondary: rgba(30, 41, 59, 0.6);
    --bg-panel: rgba(15, 23, 42, 0.7);
    --accent-color: #fbbf24;
    --accent-hover: #f59e0b;
    --glow-color: rgba(251, 191, 36, 0.2);
    --text-primary: #fffbeb;
    --text-secondary: #fef3c7;
    --text-muted: #475569;
    --panel-border: rgba(251, 191, 36, 0.08);
    --panel-blur: 18px;
    --font-ui: 'Inter', sans-serif;
    --font-display: 'Outfit', sans-serif;
}

/* --- Theme 7: Japanese Zen Garden (Bamboo / Stone / Ripple) --- */
.theme-zen {
    --bg-primary: linear-gradient(180deg, #182318 0%, #0a0f0a 100%);
    --bg-secondary: rgba(28, 41, 28, 0.55);
    --bg-panel: rgba(14, 21, 14, 0.65);
    --accent-color: #a3e635;
    --accent-hover: #84cc16;
    --glow-color: rgba(163, 230, 53, 0.2);
    --text-primary: #f7fee7;
    --text-secondary: #d9f99d;
    --text-muted: #3f6212;
    --panel-border: rgba(163, 230, 53, 0.08);
    --panel-blur: 22px;
    --font-ui: 'Quicksand', sans-serif;
    --font-display: 'Playfair Display', serif;
}

/* --- Theme 8: Underwater Submarine (Blue / Pressurized / Sonar) --- */
.theme-submarine {
    --bg-primary: radial-gradient(circle at center, #022c22 0%, #01130e 100%);
    --bg-secondary: rgba(2, 44, 34, 0.65);
    --bg-panel: rgba(1, 28, 22, 0.8);
    --accent-color: #34d399;
    --accent-hover: #059669;
    --glow-color: rgba(52, 211, 153, 0.35);
    --text-primary: #ecfdf5;
    --text-secondary: #a7f3d0;
    --text-muted: #064e3b;
    --panel-border: rgba(52, 211, 153, 0.12);
    --panel-blur: 12px;
    --font-ui: 'Share Tech Mono', monospace;
    --font-display: 'Share Tech Mono', monospace;
}

/* --- Theme 9: Cozy Mountain Cabin (Fire / Snowy Wilderness) --- */
.theme-cabin {
    --bg-primary: linear-gradient(to bottom, #111c24 0%, #060a0d 100%);
    --bg-secondary: rgba(28, 44, 56, 0.6);
    --bg-panel: rgba(12, 20, 26, 0.7);
    --accent-color: #f97316;
    --accent-hover: #ea580c;
    --glow-color: rgba(249, 115, 22, 0.25);
    --text-primary: #fff7ed;
    --text-secondary: #ffedd5;
    --text-muted: #475569;
    --panel-border: rgba(249, 115, 22, 0.1);
    --panel-blur: 20px;
    --font-ui: 'Quicksand', sans-serif;
    --font-display: 'Outfit', sans-serif;
}

/* --- Theme 10: Rainy Coffee Shop (Jazz / Chalkboard / Cozy) --- */
.theme-coffee {
    --bg-primary: linear-gradient(135deg, #2b1d16 0%, #120b08 100%);
    --bg-secondary: rgba(64, 43, 33, 0.55);
    --bg-panel: rgba(30, 20, 15, 0.7);
    --accent-color: #eab308;
    --accent-hover: #ca8a04;
    --glow-color: rgba(234, 179, 8, 0.2);
    --text-primary: #fefafd;
    --text-secondary: #fef08a;
    --text-muted: #5e473b;
    --panel-border: rgba(234, 179, 8, 0.08);
    --panel-blur: 16px;
    --font-ui: 'Quicksand', sans-serif;
    --font-display: 'Playfair Display', serif;
}

/* --- Global Elements & Background Canvas --- */
body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-ui);
    overflow-x: hidden;
    min-height: 100vh;
    transition: background var(--transition-slow), color var(--transition-normal);
    line-height: 1.6;
}

#bg-canvas, #ripple-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

#ripple-canvas {
    z-index: 2; /* Sits just above bg particle canvas */
}

/* --- Branded Preloader --- */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #020617;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: opacity 1s cubic-bezier(0.85, 0, 0.15, 1), visibility 1s;
}

#preloader.fade-out {
    opacity: 0;
    visibility: hidden;
}

.loader-logo {
    font-family: 'Outfit', sans-serif;
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: 0.15em;
    color: #fff;
    text-transform: uppercase;
    text-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
    margin-bottom: 2rem;
    position: relative;
}

.loader-bar {
    width: 200px;
    height: 3px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.loader-progress {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #6366f1, #a855f7);
    border-radius: 4px;
    transition: width 0.3s ease;
}

/* --- Main Layout HUD --- */
#app-container {
    position: relative;
    z-index: 10;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

/* Header UI */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
    transition: opacity var(--transition-normal);
}

.logo-container h1 {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 30px var(--glow-color);
}

.logo-container p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
    opacity: 0.8;
}

.header-controls {
    display: flex;
    gap: 1rem;
}

.btn-header {
    background: var(--bg-secondary);
    border: 1px solid var(--panel-border);
    backdrop-filter: blur(var(--panel-blur));
    color: var(--text-primary);
    padding: 0.75rem 1.25rem;
    border-radius: 30px;
    font-size: 0.85rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.btn-header:hover {
    border-color: var(--accent-color);
    box-shadow: var(--accent-glow);
    transform: translateY(-2px);
}

/* Hero Center Screen */
.hero-section {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    margin-bottom: 4rem;
    transition: opacity var(--transition-normal);
}

.player-card {
    background: var(--bg-secondary);
    border: 1px solid var(--panel-border);
    backdrop-filter: blur(var(--panel-blur));
    padding: 3rem 4rem;
    border-radius: 40px;
    width: 100%;
    max-width: 600px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), var(--accent-glow);
    position: relative;
    overflow: hidden;
}

.player-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, var(--glow-color) 0%, transparent 60%);
    pointer-events: none;
    opacity: 0.15;
    animation: rotateGlow 20s linear infinite;
}

@keyframes rotateGlow {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.theme-title {
    font-family: var(--font-display);
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.theme-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 450px;
    margin-left: auto;
    margin-right: auto;
}

.main-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.btn-play-pause {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: var(--text-primary);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 25px var(--glow-color);
    transition: all var(--transition-fast);
}

.btn-play-pause svg {
    width: 36px;
    height: 36px;
    fill: var(--bg-primary);
    transition: fill var(--transition-fast);
}

.btn-play-pause:hover {
    transform: scale(1.08);
    box-shadow: 0 15px 35px var(--accent-color);
}

.btn-control-secondary {
    width: 54px;
    height: 54px;
    border-radius: 50%;
    background: var(--bg-panel);
    border: 1px solid var(--panel-border);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.btn-control-secondary:hover {
    border-color: var(--accent-color);
    background: var(--bg-secondary);
    color: var(--accent-color);
    transform: translateY(-2px);
}

.preset-container {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.preset-tag {
    background: var(--bg-panel);
    border: 1px solid var(--panel-border);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.preset-tag:hover, .preset-tag.active {
    border-color: var(--accent-color);
    color: var(--text-primary);
    box-shadow: var(--accent-glow);
}

/* Drawers & Controls Layout */
.drawers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 6rem;
    transition: opacity var(--transition-normal);
}

.drawer-panel {
    background: var(--bg-secondary);
    border: 1px solid var(--panel-border);
    backdrop-filter: blur(var(--panel-blur));
    border-radius: 30px;
    padding: 2.2rem;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

.drawer-header {
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--panel-border);
    padding-bottom: 0.8rem;
}

.drawer-header h2 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.drawer-header h2 svg {
    width: 24px;
    height: 24px;
    color: var(--accent-color);
}

.drawer-section-title {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-color);
    margin: 1.5rem 0 1rem 0;
}

/* Custom Range / Sliders */
.slider-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.slider-label {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-primary);
}

.slider-val {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.slider-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.slider-input {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--bg-panel);
    outline: none;
    margin: 10px 0;
    transition: background 0.3s;
}

.slider-input::-webkit-slider-runnable-track {
    width: 100%;
    height: 6px;
    cursor: pointer;
}

.slider-input::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 18px;
    width: 18px;
    border-radius: 50%;
    background: var(--text-primary);
    border: 2px solid var(--accent-color);
    cursor: pointer;
    margin-top: -6px;
    box-shadow: 0 0 10px var(--glow-color);
    transition: transform 0.1s, background-color 0.2s;
}

.slider-input::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    background-color: var(--accent-color);
}

/* --- Breathing Guide Overlay --- */
#breathing-guide {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 500;
    background: rgba(3, 7, 18, 0.95);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

#breathing-guide.active {
    opacity: 1;
    visibility: visible;
}

.breathing-circle-container {
    position: relative;
    width: 320px;
    height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.breathing-circle-outer {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid var(--accent-color);
    box-shadow: 0 0 40px var(--glow-color);
    opacity: 0.2;
    transition: transform 4s cubic-bezier(0.445, 0.05, 0.55, 0.95);
}

.breathing-circle-inner {
    position: absolute;
    width: 60%;
    height: 60%;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-color) 0%, transparent 80%);
    box-shadow: 0 0 30px var(--glow-color);
    opacity: 0.6;
    transition: transform 4s cubic-bezier(0.445, 0.05, 0.55, 0.95);
}

.breathing-text {
    position: relative;
    z-index: 10;
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--text-primary);
    text-shadow: 0 0 10px rgba(0,0,0,0.5);
    transition: opacity 0.5s ease;
}

.breathing-subtext {
    margin-top: 2rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
    max-width: 350px;
    text-align: center;
}

.btn-close-breathing {
    position: absolute;
    top: 2rem;
    right: 2rem;
    background: transparent;
    border: 1px solid rgba(255,255,255,0.15);
    color: #fff;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.btn-close-breathing:hover {
    border-color: #fff;
    background: rgba(255,255,255,0.1);
}

/* Animations for Breathing Pacer */
.breathing-circle-container.inhale .breathing-circle-inner {
    transform: scale(1.5);
}
.breathing-circle-container.inhale .breathing-circle-outer {
    transform: scale(1.1);
    opacity: 0.5;
}

.breathing-circle-container.exhale .breathing-circle-inner {
    transform: scale(0.6);
}
.breathing-circle-container.exhale .breathing-circle-outer {
    transform: scale(0.85);
    opacity: 0.1;
}

/* --- Sleep Analyzer Wizard (Modal) --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    background: rgba(3, 7, 18, 0.85);
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.wizard-card {
    background: var(--bg-secondary);
    border: 1px solid var(--panel-border);
    box-shadow: 0 30px 60px rgba(0,0,0,0.5), var(--accent-glow);
    border-radius: 35px;
    padding: 3rem;
    width: 100%;
    max-width: 580px;
    position: relative;
    overflow: hidden;
}

.wizard-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color var(--transition-fast);
}

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

.wizard-step {
    display: none;
}

.wizard-step.active {
    display: block;
    animation: slideInUp 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

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

.wizard-progress-bar {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.wizard-dot {
    flex: 1;
    height: 4px;
    border-radius: 2px;
    background: var(--bg-panel);
    transition: background 0.3s;
}

.wizard-dot.active {
    background: var(--accent-color);
    box-shadow: var(--accent-glow);
}

.wizard-question {
    font-family: var(--font-display);
    font-size: 1.6rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.wizard-options {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    margin-bottom: 2rem;
}

.wizard-option {
    background: var(--bg-panel);
    border: 1px solid var(--panel-border);
    padding: 1.1rem 1.5rem;
    border-radius: 16px;
    cursor: pointer;
    font-weight: 500;
    text-align: left;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.wizard-option:hover, .wizard-option.selected {
    border-color: var(--accent-color);
    box-shadow: var(--accent-glow);
    background: var(--bg-secondary);
}

.wizard-nav {
    display: flex;
    justify-content: space-between;
}

.btn-wizard {
    background: var(--bg-panel);
    border: 1px solid var(--panel-border);
    color: var(--text-primary);
    padding: 0.8rem 1.5rem;
    border-radius: 30px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.btn-wizard:hover {
    border-color: var(--accent-color);
}

.btn-wizard.primary {
    background: var(--text-primary);
    color: var(--bg-primary);
    border: none;
    box-shadow: 0 10px 20px var(--glow-color);
}

.btn-wizard.primary:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 25px var(--accent-color);
}

/* Wizard recommendation animations */
.recommendation-result {
    text-align: center;
    padding: 1.5rem 0;
}

.recommendation-icon {
    font-size: 3.5rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
    animation: floatIcon 3s ease-in-out infinite;
}

@keyframes floatIcon {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.recommendation-title {
    font-family: var(--font-display);
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.recommendation-mix-details {
    background: var(--bg-panel);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    padding: 1rem;
    margin: 1.5rem 0;
    text-align: left;
    font-size: 0.85rem;
    line-height: 1.5;
}

/* --- Local Sleep Log Drawer --- */
.favorites-list {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    max-height: 250px;
    overflow-y: auto;
    padding-right: 0.5rem;
}

.favorite-item {
    background: var(--bg-panel);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-fast);
}

.favorite-item:hover {
    border-color: var(--accent-color);
}

.favorite-info h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.2rem;
}

.favorite-info p {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.favorite-actions {
    display: flex;
    gap: 0.5rem;
}

.btn-fav-action {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1rem;
    padding: 0.25rem;
    transition: color var(--transition-fast);
}

.btn-fav-action:hover {
    color: var(--accent-color);
}

.btn-fav-delete:hover {
    color: #ef4444;
}

.save-mix-form {
    display: flex;
    gap: 0.5rem;
    margin-top: 1.5rem;
    border-top: 1px solid var(--panel-border);
    padding-top: 1.25rem;
}

.input-save-mix {
    flex: 1;
    background: var(--bg-panel);
    border: 1px solid var(--panel-border);
    padding: 0.75rem 1.25rem;
    border-radius: 25px;
    color: #fff;
    font-size: 0.85rem;
    outline: none;
    transition: border 0.3s;
}

.input-save-mix:focus {
    border-color: var(--accent-color);
}

.btn-save-submit {
    background: var(--accent-color);
    color: #fff;
    border: none;
    padding: 0.75rem 1.25rem;
    border-radius: 25px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 500;
    transition: background 0.3s;
}

.btn-save-submit:hover {
    background: var(--accent-hover);
}

/* --- Share Sleep Ticket Card Exporter --- */
.ticket-preview-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 1.5rem 0;
}

#ticket-canvas {
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    max-width: 100%;
    height: auto;
}

/* --- Dynamic UI Screen Saver Fades --- */
.screensaver-active header,
.screensaver-active .drawers-grid,
.screensaver-active footer,
.screensaver-active .preset-container,
.screensaver-active .theme-desc,
.screensaver-active .main-controls .btn-control-secondary {
    opacity: 0.03;
    pointer-events: none;
    transition: opacity 1.5s ease;
}

.screensaver-active .player-card {
    background: rgba(3, 7, 18, 0.05);
    border-color: transparent;
    box-shadow: none;
    backdrop-filter: blur(0px);
    transition: all 1.5s ease;
}

.screensaver-active .btn-play-pause {
    opacity: 0.05;
    background: transparent;
    border: 2px solid var(--text-primary);
}

.screensaver-active .btn-play-pause svg {
    fill: var(--text-primary);
}

/* --- SEO Sleep Authority Section --- */
.seo-section {
    position: relative;
    z-index: 10;
    margin-top: 6rem;
    border-top: 1px solid var(--panel-border);
    padding-top: 5rem;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.seo-section h2 {
    font-family: var(--font-display);
    font-size: 2.2rem;
    margin-bottom: 2rem;
    text-align: center;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.seo-card {
    background: var(--bg-secondary);
    border: 1px solid var(--panel-border);
    border-radius: 24px;
    padding: 2.5rem;
    margin-bottom: 2rem;
}

.seo-card h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    margin-bottom: 1.25rem;
    color: var(--accent-color);
}

.seo-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

/* Frequency Audio Guide Panel */
.freq-guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.25rem;
    margin-top: 1.5rem;
}

.freq-item {
    background: var(--bg-panel);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    transition: all var(--transition-fast);
}

.freq-item:hover {
    border-color: var(--accent-color);
}

.freq-color-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
    text-transform: uppercase;
}

.badge-white { background: #fff; color: #000; }
.badge-pink { background: #ffb6c1; color: #000; }
.badge-brown { background: #d2b48c; color: #000; }
.badge-blue { background: #add8e6; color: #000; }
.badge-grey { background: #a9a9a9; color: #fff; }

.freq-item h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.freq-item p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.4;
}

.btn-freq-play {
    background: var(--bg-secondary);
    border: 1px solid var(--panel-border);
    color: var(--text-primary);
    width: 42px;
    height: 42px;
    border-radius: 50%;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.btn-freq-play:hover, .btn-freq-play.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: var(--bg-primary);
    box-shadow: var(--accent-glow);
}

/* FAQ Accordion */
.faq-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    background: var(--bg-panel);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    overflow: hidden;
}

.faq-trigger {
    width: 100%;
    padding: 1.25rem 1.5rem;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-trigger::after {
    content: '+';
    font-size: 1.4rem;
    transition: transform var(--transition-fast);
}

.faq-item.active .faq-trigger::after {
    transform: rotate(45deg);
}

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.faq-content p {
    padding: 0 1.5rem 1.5rem 1.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin: 0;
}

.faq-item.active .faq-content {
    max-height: 200px;
}

/* --- Footer UI --- */
footer {
    position: relative;
    z-index: 10;
    margin-top: 6rem;
    border-top: 1px solid var(--panel-border);
    padding: 2rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent-color);
}

/* --- Customized Scrollbar --- */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--bg-panel);
    border-radius: 4px;
    border: 1px solid var(--panel-border);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-color);
}

/* --- Custom Text Selection --- */
::selection {
    background: var(--accent-color);
    color: #fff;
}

/* --- Responsive Media Queries --- */
@media (max-width: 768px) {
    #app-container {
        padding: 1rem;
    }
    
    header {
        flex-direction: column;
        gap: 1.5rem;
        margin-bottom: 2rem;
        text-align: center;
    }
    
    .logo-container h1 {
        font-size: 1.8rem;
    }
    
    .player-card {
        padding: 2rem;
        border-radius: 30px;
    }
    
    .theme-title {
        font-size: 2.2rem;
    }
    
    .btn-play-pause {
        width: 76px;
        height: 76px;
    }
    
    .btn-play-pause svg {
        width: 28px;
        height: 28px;
    }
    
    .drawers-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        margin-bottom: 4rem;
    }
    
    .drawer-panel {
        padding: 1.5rem;
    }
    
    .wizard-card {
        padding: 2rem 1.5rem;
        border-radius: 25px;
    }
    
    .wizard-question {
        font-size: 1.3rem;
    }
    
    .seo-card {
        padding: 1.5rem;
    }
    
    footer {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

/* --- Cookie Consent Banner (AdSense Compliance) --- */
.cookie-banner-box {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(120px);
    width: calc(100% - 4rem);
    max-width: 700px;
    background: rgba(3, 7, 18, 0.9);
    border: 1px solid var(--panel-border);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    z-index: 9997;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5), var(--accent-glow);
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.6s;
    opacity: 0;
    pointer-events: none;
}

.cookie-banner-box.active {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.cookie-banner-box p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.cookie-banner-box a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
}

.cookie-banner-box a:hover {
    text-decoration: underline;
}

@media (max-width: 600px) {
    .cookie-banner-box {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
        bottom: 1rem;
        width: calc(100% - 2rem);
        padding: 1.25rem;
    }
}

/* --- Sidebar Ad Banner (AdSense Compliance) --- */
.sidebar-ad-container {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    width: 100%;
}

.sidebar-ad-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    text-align: center;
}

.sidebar-ad-box {
    background: var(--bg-panel);
    border: 1px solid var(--panel-border);
    border-radius: 20px;
    padding: 0.75rem;
    min-height: 116px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    overflow: hidden;
}

/* --- Luxury 3D Card Tilt & Parallax --- */
@media (pointer: fine) {
    :root {
        --tilt-x: 0;
        --tilt-y: 0;
    }
    
    body {
        perspective: 1200px;
    }
    
    .player-card, .drawer-panel {
        transform-style: preserve-3d;
        transform: rotateX(calc(var(--tilt-y) * -8deg)) rotateY(calc(var(--tilt-x) * 8deg)) translateZ(0);
        transition: transform 0.2s cubic-bezier(0.25, 1, 0.5, 1), background-color var(--transition-normal);
    }
    
    .player-card:hover, .drawer-panel:hover {
        transform: rotateX(calc(var(--tilt-y) * -11deg)) rotateY(calc(var(--tilt-x) * 11deg)) translateZ(8px);
    }
}

/* --- Slow Ambient Color Shifts --- */
@keyframes ambientGlowCycle {
    0% { filter: hue-rotate(0deg); }
    50% { filter: hue-rotate(15deg); }
    100% { filter: hue-rotate(0deg); }
}

body {
    animation: ambientGlowCycle 20s ease-in-out infinite;
}

/* --- Web Audio Waveform Visualizer --- */
.visualizer-wrapper {
    width: 100%;
    max-width: 300px;
    height: 60px;
    margin: 1.25rem auto;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

#visualizer-canvas {
    width: 100%;
    height: 100%;
}

/* --- Solfeggio Tuning Grid --- */
.solfeggio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    margin-top: 0.75rem;
    width: 100%;
}

.btn-solfeggio {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    padding: 0.5rem;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    backdrop-filter: blur(10px);
}

.btn-solfeggio:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--accent-color);
    color: var(--text-primary);
    box-shadow: 0 0 10px var(--accent-glow);
}

.btn-solfeggio.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: var(--bg-primary);
    font-weight: 600;
    box-shadow: 0 0 15px var(--accent-glow);
}

/* --- Ad Blocks default cursor restore (Compliance & Usability) --- */
.ad-banner-container, 
.sidebar-ad-container, 
.adsbygoogle, 
.adsbygoogle * {
    cursor: auto !important;
}

/* --- Responsive Sleep Science Elements --- */
.table-responsive-wrapper {
    overflow-x: auto;
    width: 100%;
    border-radius: 16px;
    border: 1px solid var(--panel-border);
    margin: 1.5rem 0 2rem 0;
    background: var(--bg-panel);
    box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.5);
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.85rem;
    color: var(--text-secondary);
    min-width: 750px;
}

.comparison-table th {
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-primary);
    font-weight: 600;
    padding: 1.25rem 1rem;
    border-bottom: 2px solid var(--panel-border);
    font-family: var(--font-display);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
}

.comparison-table td {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid var(--panel-border);
    line-height: 1.5;
    vertical-align: top;
}

.comparison-table tr:last-child td {
    border-bottom: none;
}

.comparison-table tr:hover td {
    background: rgba(255, 255, 255, 0.015);
}

.comparison-table th:not(:last-child),
.comparison-table td:not(:last-child) {
    border-right: 1px solid var(--panel-border);
}

.frequency-pill {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 0.4rem;
}

.frequency-pill.f-pink { background: rgba(255, 182, 193, 0.1); color: #ffb6c1; border: 1px solid rgba(255, 182, 193, 0.2); }
.frequency-pill.f-brown { background: rgba(210, 180, 140, 0.1); color: #d2b48c; border: 1px solid rgba(210, 180, 140, 0.2); }
.frequency-pill.f-white { background: rgba(255, 255, 255, 0.05); color: #fff; border: 1px solid rgba(255, 255, 255, 0.1); }
.frequency-pill.f-blue { background: rgba(173, 216, 230, 0.1); color: #add8e6; border: 1px solid rgba(173, 216, 230, 0.2); }
.frequency-pill.f-grey { background: rgba(169, 169, 169, 0.1); color: #a9a9a9; border: 1px solid rgba(169, 169, 169, 0.2); }

/* Solfeggio Chart */
.solfeggio-chart-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.solfeggio-chart-card {
    background: var(--bg-panel);
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    padding: 1rem;
    text-align: center;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.solfeggio-chart-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px var(--glow-color);
}

.solfeggio-chart-val {
    font-family: 'Share Tech Mono', monospace;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 0.25rem;
}

.solfeggio-chart-state {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.4rem;
}

.solfeggio-chart-desc {
    font-size: 0.7rem;
    color: var(--text-secondary);
    line-height: 1.3;
}

/* Glossary */
.acoustic-glossary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
    margin-top: 1.5rem;
}

.glossary-item {
    background: var(--bg-panel);
    border-left: 3px solid var(--accent-color);
    border-top: 1px solid var(--panel-border);
    border-right: 1px solid var(--panel-border);
    border-bottom: 1px solid var(--panel-border);
    border-radius: 0 12px 12px 0;
    padding: 1.25rem;
    transition: all 0.25s ease;
}

.glossary-item:hover {
    background: rgba(255, 255, 255, 0.01);
}

.glossary-item dt {
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.glossary-item dd {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

/* Audits & Disorders */
.disorder-suitability-grid,
.audit-worlds-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
    margin-top: 1.5rem;
}

.disorder-suit-card,
.audit-world-card {
    background: var(--bg-panel);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    padding: 1.5rem;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.disorder-suit-card:hover,
.audit-world-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.disorder-suit-card h4,
.audit-world-card h4 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.disorder-badge {
    font-size: 0.65rem;
    text-transform: uppercase;
    font-weight: 700;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.disorder-suit-card p,
.audit-world-card p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

.audit-world-type {
    font-family: 'Share Tech Mono', monospace;
    font-size: 0.7rem;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Sleep Hygiene Checklist */
.hygiene-checklist-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.hygiene-card-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    background: var(--bg-panel);
    border: 1px solid var(--panel-border);
    border-radius: 12px;
    padding: 1.25rem;
    transition: all 0.25s ease;
}

.hygiene-card-item:hover {
    border-color: var(--accent-color);
    background: rgba(255, 255, 255, 0.01);
}

.hygiene-card-icon {
    font-size: 1.25rem;
    line-height: 1;
    user-select: none;
}

.hygiene-card-text h4 {
    font-family: var(--font-display);
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.hygiene-card-text p {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.4;
    margin: 0;
}