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

:root {
    /* Premium High-Contrast Light Theme (Clean Pearl) */
    --md-bg: #f8fafc;
    --md-on-bg: #0f172a;
    /* Deep Charcoal for visibility */
    --md-surface-container: rgba(255, 255, 255, 0.75);
    --md-surface-container-low: rgba(248, 250, 252, 0.5);
    --md-on-surface: #1e293b;
    --md-on-surface-variant: #334155;
    /* Darker variant for legibility */
    --md-outline: #cbd5e1;
    --md-primary: #6d28d9;
    /* Deeper Violet for better white text contrast */
    --md-on-primary: #ffffff;
    --md-primary-container: #ede9fe;
    --md-on-primary-container: #4c1d95;
    --md-secondary: #be185d;
    /* Deeper Rose */
    --md-on-secondary: #ffffff;
    --md-secondary-container: #ffe4e6;
    --md-on-secondary-container: #9d174d;
    --md-tertiary: #0369a1;
    /* Deeper Sky Blue */
    --md-on-tertiary: #ffffff;
    --md-error: #b91c1c;
    --md-on-error: #ffffff;
    --md-shadow-1: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --md-shadow-2: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --md-radius-xl: 32px;
    --md-ease: cubic-bezier(0.4, 0, 0.2, 1);
    --md-duration: 300ms;
}

body.dark-theme {
    /* Solid Dark Theme (Obsidian) */
    --md-bg: #030712;
    --md-on-bg: #f8fafc;
    --md-surface-container: rgba(15, 23, 42, 0.8);
    --md-surface-container-low: rgba(2, 6, 23, 0.6);
    --md-on-surface: #f1f5f9;
    --md-on-surface-variant: #94a3b8;
    --md-outline: #334155;
    --md-primary: #8b5cf6;
    --md-primary-container: #4c1d95;
    --md-on-primary-container: #ede9fe;
    --md-secondary-container: #831843;
    --md-on-secondary-container: #fce7f3;
}

/* 🏆 Plan-Based Themes (Override Variables) */

/* Professional Plan (Elegant Gold & Rose) */
body.plan-pro {
    --md-primary: #b45309;
    /* Deep Gold */
    --md-primary-container: #fef3c7;
    --md-on-primary-container: #78350f;
    --md-secondary: #be185d;
}

body.plan-pro.dark-theme {
    --md-primary: #fbbf24;
    /* Bright Gold */
    --md-on-primary: #451a03;
    /* Deep Brown for contrast on gold */
    --md-primary-container: #78350f;
    /* Deep Gold-Brown container */
    --md-on-primary-container: #fef3c7;
    /* Creamy Gold text for visibility */
}

/* Studio/Elite Plan (Platinum & Deep Indigo) */
body.plan-studio {
    --md-primary: #312e81;
    /* Deep Indigo */
    --md-primary-container: #e0e7ff;
    --md-on-primary-container: #1e1b4b;
    --md-secondary: #4338ca;
}

body.plan-studio.dark-theme {
    --md-bg: #020617;
    /* Near Black */
    --md-primary: #818cf8;
    /* Platinum Blue */
    --md-on-primary: #000000;
    --md-primary-container: #1e1b4b;
    --md-on-primary-container: #e0e7ff;
    /* Light Platinum text */
    --md-surface-container: #0f172a;
}


/* ── Unified Navigation & Shrink Logic ────────────────────────── */
.premium-nav-container {
    transition: all 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}

.header-shrunk {
    max-width: 900px !important;
    margin-left: auto !important;
    margin-right: auto !important;
    padding-top: 0.5rem !important;
    padding-bottom: 0.5rem !important;
    border-radius: 40px !important;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3) !important;
    width: calc(100% - 2rem) !important;
}

.header-shrunk .nav-logo-img {
    height: 40px !important;
    width: 40px !important;
}

@media (min-width: 768px) {
    .header-shrunk #headerActions {
        gap: 0.5rem !important;
    }

    .header-shrunk #headerActions button {
        width: 2.75rem !important;
        min-width: 2.75rem !important;
        height: 2.75rem !important;
        padding-left: 0 !important;
        padding-right: 0 !important;
        justify-content: center !important;
    }

    .header-shrunk #headerActions button span {
        display: none !important;
    }
}


/* Premium Card System (Sharp & High Contrast - No Blur) */
.premium-card {
    border: 1px solid var(--md-outline);
    box-shadow: var(--md-shadow-1);
    transition: all var(--md-duration) var(--md-ease);
    position: relative;
    border-radius: 24px;
    overflow: hidden;
}


.premium-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.08);
    border-color: var(--md-outline);
}

.premium-card:active {
    transform: scale(0.995);
}

/* Minimalist Border Variations */
.card-purple:hover { border-color: rgba(139, 92, 246, 0.4); }
.card-rose:hover { border-color: rgba(244, 63, 94, 0.4); }
.card-cyan:hover { border-color: rgba(6, 182, 212, 0.4); }
.card-gold:hover { border-color: rgba(245, 158, 11, 0.4); }


/* Accent Glow Bar */
.premium-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: transparent;
    transition: background 0.3s ease;
}

.card-purple::before { background: linear-gradient(90deg, #8b5cf6, #d946ef); opacity: 0.6; }
.card-rose::before { background: linear-gradient(90deg, #f43f5e, #fb7185); opacity: 0.6; }
.card-cyan::before { background: linear-gradient(90deg, #06b6d4, #22d3ee); opacity: 0.6; }
.card-gold::before { background: linear-gradient(90deg, #f59e0b, #fbbf24); opacity: 0.6; }

.premium-card:hover::before {
    opacity: 0.8;
}





/* Attractive Album Card Components */
.album-card-accent {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--md-primary), var(--md-tertiary));
    opacity: 0.6;
}

.status-badge {
    font-size: 10px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 10px;
    border-radius: 99px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.status-verified {
    background: #dcfce7;
    color: #15803d;
    border: 1px solid #bbf7d0;
}

.status-missing {
    background: #fee2e2;
    color: #b91c1c;
    border: 1px solid #fecaca;
}

.id-tag {
    font-family: var(--font-mono);
    font-size: 10px;
    background: var(--md-surface-container-low);
    color: var(--md-on-surface-variant);
    padding: 2px 8px;
    border-radius: 6px;
    border: 1px solid var(--md-outline);
}

/* Skeleton Loading State */
.skeleton {
    background: linear-gradient(90deg,
            color-mix(in srgb, var(--md-surface-container) 80%, transparent) 25%,
            color-mix(in srgb, var(--md-surface-container-low) 90%, transparent) 50%,
            color-mix(in srgb, var(--md-surface-container) 80%, transparent) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: 24px;
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

/* Staggered Entry Animation */
.staggered-item {
    opacity: 0;
    animation: fadeInUp 0.8s var(--md-ease) forwards;
}

@keyframes blob-float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(40px, -40px) scale(1.1); }
    66% { transform: translate(-30px, 30px) scale(0.9); }
}

@keyframes card-shimmer {
    0% { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}

@keyframes icon-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

.animate-blob {
    animation: blob-float 60s infinite ease-in-out;
    filter: blur(140px) opacity(0.3);
}

.premium-card {
    background: #ffffff;
    transition: all 0.4s var(--md-ease);
}

.dark-theme .premium-card {
    background: #1e293b;
}

.icon-float {
    animation: icon-float 6s infinite ease-in-out;
}



.icon-float {
    animation: icon-float 4s infinite ease-in-out;
}


.animation-delay-2000 { animation-delay: 2s; }
.animation-delay-4000 { animation-delay: 4s; }



@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.98);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.dark-theme .premium-glass {
    background: var(--md-surface-container) !important;
    background-color: var(--md-surface-container) !important;
    border-color: var(--md-outline);
}

/* Animations */
@keyframes float {

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

    50% {
        transform: translateY(-20px) scale(1.05);
    }
}

.animate-float {
    animation: float 5s ease-in-out infinite;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--md-bg);
    color: var(--md-on-bg) !important;
    overflow-x: hidden;
}

/* Floating Action Button Polish */
#plansNavBtn, [onclick="showUploadView()"] {
    position: relative;
    overflow: hidden;
}

#plansNavBtn::after, [onclick="showUploadView()"]::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s;
}

#plansNavBtn:hover::after, [onclick="showUploadView()"]:hover::after {
    opacity: 1;
}


/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.1);
    border-radius: 20px;
}

.dark-theme ::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
}

/* Premium Shimmer Button Effect */
.btn-shimmer {
    position: relative;
    overflow: hidden;
}

.btn-shimmer::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -150%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transform: rotate(45deg);
    transition: 0.8s;
}

.btn-shimmer:hover::after {
    left: 150%;
}

/* Premium styling for dropdowns to ensure theme compatibility */
select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23a855f7' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1rem;
    padding-right: 2.5rem !important;
    color: var(--md-on-bg) !important;
    font-weight: 700;
}

/* Fix for invisible text in native dropdown menus during dark mode */
select option {
    background-color: var(--md-surface-container);
    color: var(--md-on-bg) !important;
    padding: 12px;
    font-weight: 500;
}

input:not([type="checkbox"]):not([type="radio"]) {
    color: var(--md-on-bg) !important;
}

.album-filter-shell {
    position: relative;
}

.album-filter-clear-btn {
    position: absolute;
    top: 50%;
    right: 8px;
    transform: translateY(-50%);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border: none;
    border-radius: 9999px;
    background: var(--md-surface-container);
    color: var(--md-on-bg);
    border: 1px solid var(--md-outline);
    cursor: pointer;
    transition: all var(--md-duration) var(--md-ease);
}

.album-filter-clear-btn:hover,
.album-filter-clear-btn:focus-visible {
    background: var(--md-error);
    color: white;
    outline: none;
}

.album-filter-input::-webkit-calendar-picker-indicator {
    cursor: pointer;
    filter: invert(var(--calendar-invert));
    margin-right: 24px;
}

.album-page-btn {
    min-width: 38px;
    height: 38px;
    padding: 0 14px;
    border: 1px solid color-mix(in srgb, var(--md-outline) 14%, transparent);
    border-radius: 9999px;
    background: var(--md-surface-container);
    color: var(--md-on-bg);
    font: 600 0.875rem var(--font-sans);
    cursor: pointer;
    transition: all var(--md-duration) var(--md-ease);
}

.album-page-btn:hover:not(:disabled),
.album-page-btn:focus-visible {
    transform: scale(1.1);
    border-color: var(--md-primary);
    color: var(--md-primary);
    box-shadow: var(--md-shadow-1);
    outline: none;
}

.album-page-btn:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.album-page-btn-active {
    background: var(--md-primary);
    color: var(--md-on-primary);
    border-color: var(--md-primary);
    box-shadow: 0 8px 20px color-mix(in srgb, var(--md-primary) 40%, transparent);
}

/* Force consistent themed backgrounds for native controls */
#albumsPerPageSelect,
#customPerPageInput,
#mobileFilterToggle,
.album-filter-input,
.album-filter-clear-btn {
    background-color: var(--md-surface-container-low) !important;
    color: var(--md-on-bg) !important;
    border-color: color-mix(in srgb, var(--md-outline) 70%, transparent) !important;
}

body.dark-theme #albumsPerPageSelect,
body.dark-theme #customPerPageInput,
body.dark-theme #mobileFilterToggle,
body.dark-theme .album-filter-input,
body.dark-theme .album-filter-clear-btn {
    background: var(--md-surface-container-low) !important;
    background-color: var(--md-surface-container-low) !important;
    color: var(--md-on-bg) !important;
    -webkit-text-fill-color: var(--md-on-bg) !important;
    border-color: color-mix(in srgb, var(--md-outline) 85%, transparent) !important;
    box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--md-outline) 20%, transparent);
}

body.dark-theme #albumsPerPageSelect,
body.dark-theme #customPerPageInput,
body.dark-theme .album-filter-input {
    appearance: none;
    color-scheme: dark;
}

body.dark-theme #albumsPerPageSelect option {
    background: var(--md-surface-container) !important;
    color: var(--md-on-bg) !important;
}

body.dark-theme #albumsPerPageSelect,
body.dark-theme #customPerPageInput,
body.dark-theme #albumNameFilter,
body.dark-theme #albumDateFilter,
body.dark-theme #albumEmailFilter {
    background-image: none !important;
}

body.dark-theme #albumNameFilter,
body.dark-theme #albumDateFilter,
body.dark-theme #albumEmailFilter,
body.dark-theme #customPerPageInput {
    caret-color: var(--md-on-bg) !important;
}

body.dark-theme #albumNameFilter:-webkit-autofill,
body.dark-theme #albumDateFilter:-webkit-autofill,
body.dark-theme #albumEmailFilter:-webkit-autofill,
body.dark-theme #customPerPageInput:-webkit-autofill {
    -webkit-text-fill-color: var(--md-on-bg) !important;
    -webkit-box-shadow: 0 0 0 1000px var(--md-surface-container-low) inset !important;
    box-shadow: 0 0 0 1000px var(--md-surface-container-low) inset !important;
}

body.dark-theme #albumDateFilter::-webkit-datetime-edit,
body.dark-theme #albumDateFilter::-webkit-datetime-edit-fields-wrapper,
body.dark-theme #albumDateFilter::-webkit-datetime-edit-text,
body.dark-theme #albumDateFilter::-webkit-datetime-edit-month-field,
body.dark-theme #albumDateFilter::-webkit-datetime-edit-day-field,
body.dark-theme #albumDateFilter::-webkit-datetime-edit-year-field {
    color: var(--md-on-bg) !important;
    background: transparent !important;
}

body.dark-theme #albumDateFilter::-webkit-calendar-picker-indicator {
    filter: invert(1) brightness(1.2);
}

body.dark-theme .album-filter-input::placeholder {
    color: var(--md-on-surface-variant) !important;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background:
        linear-gradient(180deg, color-mix(in srgb, var(--md-primary) 3%, transparent), transparent 24%),
        radial-gradient(circle at 14% 18%, color-mix(in srgb, var(--md-primary) 6%, transparent), transparent 30%);
    opacity: 0.88;
    z-index: -2;
}

.blob {
    animation: drift 14400s infinite ease-in-out alternate;
    mix-blend-mode: multiply;
}

body.dark-theme .blob {
    mix-blend-mode: screen;
}

.blob-1 {
    background: radial-gradient(circle, var(--md-primary) 0%, transparent 60%);
}

.blob-2 {
    background: radial-gradient(circle, var(--md-tertiary) 0%, transparent 60%);
    animation-delay: -12s;
}

@keyframes drift {
    0% {
        transform: translateY(0) translateX(0) scale(1);
    }

    100% {
        transform: translateY(15%) translateX(-5%) scale(1.1);
    }
}

.screen {
    opacity: 0;
    transition: opacity var(--md-duration) ease;
}

.tutorial-card {
    cursor: pointer;
    position: relative;
    overflow: hidden;
    padding: 0.62rem 0.68rem;
    scroll-snap-align: start;
    background: linear-gradient(180deg, rgba(18, 24, 38, 0.96), rgba(12, 17, 29, 0.94));
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--md-on-surface-variant);
    box-shadow: 0 10px 22px -18px rgba(0, 0, 0, 0.55);
    z-index: var(--tutorial-depth, 1);
    opacity: var(--tutorial-opacity, 1);
    transform: translateX(var(--tutorial-arch-offset-x, 0px)) scale(var(--tutorial-scale, 1));
    transition: transform 220ms var(--md-ease), border-color 220ms var(--md-ease), box-shadow 220ms var(--md-ease), background 220ms var(--md-ease), color 220ms var(--md-ease);
}

.tutorial-card::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent 44%);
    opacity: 0.55;
    pointer-events: none;
}

.tutorial-card::after {
    content: "";
    position: absolute;
    left: 12%;
    right: 12%;
    top: -40%;
    height: 84%;
    border-radius: 0 0 999px 999px;
    pointer-events: none;
    opacity: 0;
    transform: translateY(-6px) scaleX(0.92);
    transition: opacity 220ms var(--md-ease), transform 220ms var(--md-ease);
}

.tutorial-card-top,
.tutorial-card-copy {
    position: relative;
    z-index: 1;
}

.tutorial-card-chip {
    display: inline-flex;
    align-items: center;
    min-height: 1.35rem;
    padding: 0.14rem 0.46rem;
    border-radius: 9999px;
    background: rgba(255, 255, 255, 0.05);
    color: rgba(226, 232, 240, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 0.54rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.tutorial-card-meta {
    color: rgba(203, 213, 225, 0.66);
    line-height: 1.28;
    font-size: 0.64rem;
}

.tutorial-card:hover {
    background: linear-gradient(180deg, rgba(24, 31, 48, 0.98), rgba(14, 20, 34, 0.96));
    color: #f8fafc;
    transform: translateX(calc(var(--tutorial-arch-offset-x, 0px) + 4px)) scale(calc(var(--tutorial-scale, 1) + 0.01));
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: 0 18px 36px -24px rgba(0, 0, 0, 0.7);
}

.tutorial-card.active {
    background: linear-gradient(180deg, rgba(16, 22, 37, 0.99), rgba(10, 15, 28, 0.98));
    color: #f8fafc !important;
    border-color: rgba(255, 255, 255, 0.06);
    box-shadow: 0 24px 42px -24px rgba(0, 0, 0, 0.78);
    transform: translateX(calc(var(--tutorial-arch-offset-x, 0px) + 4px)) scale(1.03);
    opacity: 1;
}

.tutorial-card.active::after {
    background:
        conic-gradient(from 210deg at 50% 100%,
            #ff5f6d 0deg,
            #ffc371 42deg,
            #ffe66d 82deg,
            #38ef7d 132deg,
            #43c6ac 176deg,
            #4facfe 218deg,
            #7b61ff 266deg,
            #ff61d2 316deg,
            #ff3b30 360deg);
    filter: blur(8px) saturate(1.08);
    opacity: 0.98;
    transform: translateY(0) scaleX(1);
    box-shadow: 0 8px 24px rgba(79, 172, 254, 0.22);
}

.tutorial-card.active .tutorial-icon-box {
    background: var(--md-primary) !important;
    color: var(--md-on-primary) !important;
}

.tutorial-card.active span,
.tutorial-card.active .tutorial-card-meta {
    color: #f8fafc !important;
}

.tutorial-card.active .tutorial-card-chip {
    color: white !important;
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.14);
}

.tutorial-modal-shell {
    align-items: stretch;
}

.tutorial-side-nav {
    position: relative;
    overflow: hidden;
}

.tutorial-side-track {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0.55rem 1rem 0.55rem 2.4rem;
    scroll-behavior: smooth;
}

.tutorial-side-track::before,
.tutorial-side-track::after {
    content: "";
    flex: 0 0 22vh;
}

.tutorial-modal-header {
    position: relative;
}

.tutorial-modal-header::after {
    content: "";
    position: absolute;
    left: 1.5rem;
    right: 1.5rem;
    bottom: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.12), transparent);
}

.tutorial-modal-badge {
    position: relative;
    overflow: hidden;
}

.tutorial-modal-badge::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.26), transparent 58%);
    pointer-events: none;
}

.tutorial-modal-subtitle {
    max-width: 42rem;
    font-size: 0.82rem;
    line-height: 1.35;
}

.tutorial-close-btn {
    border: 1px solid color-mix(in srgb, white 8%, transparent);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.16);
}

.tutorial-side-card {
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02));
}

.tutorial-side-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.02));
    pointer-events: none;
}

.tutorial-side-card:hover {
    transform: translateY(-4px);
    border-color: color-mix(in srgb, var(--md-primary) 24%, rgba(255, 255, 255, 0.08));
    box-shadow: 0 24px 50px -24px rgba(0, 0, 0, 0.45);
}

.tutorial-player-panel {
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background:
        radial-gradient(circle at top left, rgba(59, 130, 246, 0.14), transparent 34%),
        radial-gradient(circle at bottom right, rgba(168, 85, 247, 0.12), transparent 30%),
        linear-gradient(145deg, rgba(6, 10, 18, 0.995), rgba(10, 16, 28, 0.985));
    box-shadow: 0 42px 90px -24px rgba(0, 0, 0, 0.72);
    align-self: center;
    max-height: min(100%, calc(100vh - 8.75rem));
    max-width: min(100%, calc(100vw - 26rem));
}

.tutorial-player-backdrop {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 16%, transparent 84%, rgba(255, 255, 255, 0.02)),
        radial-gradient(circle at 50% 10%, rgba(255, 255, 255, 0.05), transparent 22%);
    opacity: 0.78;
}

.tutorial-player-chrome {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 0;
    padding: clamp(0.55rem, 1vw, 0.8rem);
    gap: 0.35rem;
}

.tutorial-player-topbar {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    min-width: 0;
}

.tutorial-kicker {
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.58);
}

.tutorial-player-title {
    margin-top: 0.35rem;
    font-size: clamp(1.05rem, 1.45vw, 1.4rem);
    font-weight: 900;
    line-height: 1.05;
    color: #f8fafc;
}

.tutorial-player-desc {
    margin-top: 0.4rem;
    max-width: 42rem;
    color: rgba(226, 232, 240, 0.84);
    font-size: clamp(0.78rem, 0.95vw, 0.88rem);
    line-height: 1.35;
}

.tutorial-player-status {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 0.6rem;
}

.tutorial-badge,
.tutorial-meta-pill {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 1.95rem;
    padding: 0.42rem 0.72rem;
    border-radius: 9999px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.05);
    color: #e2e8f0;
    font-size: 0.72rem;
    font-weight: 700;
    white-space: nowrap;
}

.tutorial-badge {
    background: rgba(255, 255, 255, 0.09);
    color: white;
}

.tutorial-stage-shell {
    min-height: 0;
    display: flex;
    flex: 1 1 auto;
}

.tutorial-stage {
    position: relative;
    width: 100%;
    min-height: 0;
    flex: 1 1 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: clamp(1.2rem, 2vw, 2rem);
    overflow: hidden;
    background:
        radial-gradient(circle at 50% 35%, rgba(125, 211, 252, 0.08), transparent 36%),
        linear-gradient(180deg, #02050c 0%, #000000 100%);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12), 0 22px 38px -24px rgba(0, 0, 0, 0.95);
    aspect-ratio: 16 / 9;
    max-height: 100%;
}

.tutorial-video {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    background: #000;
    filter: saturate(1.04) contrast(1.05) brightness(1.03);
}

.tutorial-fit-contain {
    object-fit: contain;
    object-position: center center;
}

.tutorial-fit-cover {
    object-fit: cover;
}

.tutorial-stage-vignette {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 2;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04), inset 0 -42px 60px rgba(0, 0, 0, 0.08);
}

.tutorial-player-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.tutorial-toolbar-group {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    flex-wrap: wrap;
}

.tutorial-tool-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    min-height: 2.15rem;
    padding: 0.42rem 0.72rem;
    border-radius: 9999px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.045);
    color: #e2e8f0;
    font-size: 0.72rem;
    font-weight: 700;
    cursor: pointer;
    transition: transform var(--md-duration) var(--md-ease), background var(--md-duration) var(--md-ease), border-color var(--md-duration) var(--md-ease), color var(--md-duration) var(--md-ease);
}

.tutorial-tool-btn:hover,
.tutorial-tool-btn:focus-visible {
    transform: translateY(-1px);
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    outline: none;
}

.tutorial-tool-btn.is-active {
    background: color-mix(in srgb, var(--md-primary) 30%, rgba(255, 255, 255, 0.08));
    border-color: color-mix(in srgb, var(--md-primary) 55%, rgba(255, 255, 255, 0.18));
    color: white;
}

.tutorial-tool-btn-primary {
    background: rgba(255, 255, 255, 0.11);
    color: var(--md-on-primary);
    border-color: rgba(255, 255, 255, 0.12);
}

.tutorial-tool-btn-primary:hover,
.tutorial-tool-btn-primary:focus-visible {
    background: rgba(255, 255, 255, 0.16);
}

.no-scrollbar::-webkit-scrollbar {
    display: none;
}

.no-scrollbar {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.screen.active {
    opacity: 1;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    height: 40px;
    padding: 0 1.5rem;
    border: none;
    border-radius: 9999px;
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--md-duration) var(--md-ease);
    outline: none;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn:active {
    transform: scale(0.95);
}

.btn-primary {
    background-color: var(--md-primary);
    color: var(--md-on-primary);
}

.btn-outline {
    background-color: var(--md-secondary-container);
    color: var(--md-on-secondary-container);
}

.btn-danger {
    background-color: var(--md-error);
    color: var(--md-on-error);
}

.btn-sm {
    height: 32px;
    padding: 0 1rem;
    font-size: 0.75rem;
}

.btn-close {
    width: 40px;
    height: 40px;
    padding: 0;
    border-radius: 9999px;
    background-color: color-mix(in srgb, var(--md-on-surface-variant) 15%, transparent);
    color: var(--md-on-surface-variant);
}

.btn-close:hover {
    background-color: color-mix(in srgb, var(--md-on-surface-variant) 20%, transparent);
    color: var(--md-on-bg);
}

.form-group label {
    display: none;
}

.album-card {
    background-color: var(--md-surface-container);
    border-radius: var(--md-radius-lg);
    padding: 1.5rem;
    min-height: 18rem;
    cursor: pointer;
    transition: all var(--md-duration) var(--md-ease);
    box-shadow: var(--md-shadow-1);
    display: flex;
    flex-direction: column;
}

.album-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--md-shadow-2);
    background-color: color-mix(in srgb, var(--md-surface-container) 95%, black);
}

.album-card:active {
    transform: scale(0.98);
}

.album-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
}

.album-card-title {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--md-on-bg);
}

.album-card-code {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    background-color: var(--md-secondary-container);
    color: var(--md-on-secondary-container);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    white-space: nowrap;
}

.album-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 1.5rem;
    margin-bottom: 1rem;
    color: var(--md-on-surface-variant);
    font-size: 0.875rem;
}

.album-card-meta span {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.album-card-meta svg {
    width: 18px;
    height: 18px;
    color: var(--md-primary);
}

.album-card-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: auto;
}

.file-drop.dragover {
    border-color: var(--md-primary);
    background-color: color-mix(in srgb, var(--md-primary) 5%, var(--md-bg));
}

.file-drop.dragover .drop-icon {
    color: var(--md-primary);
}

.modal-overlay {
    opacity: 0;
    visibility: hidden;
    transition: all var(--md-duration) ease;
    background-color: var(--md-bg) !important;
    /* Matches site background, 100% solid */
}

.modal-overlay:not(.hidden) {
    opacity: 1;
    visibility: visible;
}

.modal {
    transform: translateY(20px) scale(0.95);
}

.modal-overlay:not(.hidden) .modal {
    transform: translateY(0) scale(1);
}

.frame-mappings {
    scrollbar-width: thin;
}

#albumsGrid {
    scrollbar-width: thin;
}

#albumsGrid::-webkit-scrollbar,
.frame-mappings::-webkit-scrollbar,
.modal::-webkit-scrollbar {
    width: 10px;
}

#albumsGrid::-webkit-scrollbar-track,
.frame-mappings::-webkit-scrollbar-track,
.modal::-webkit-scrollbar-track {
    background: color-mix(in srgb, var(--md-surface-container-low) 72%, transparent);
    border-radius: 9999px;
}

#albumsGrid::-webkit-scrollbar-thumb,
.frame-mappings::-webkit-scrollbar-thumb,
.modal::-webkit-scrollbar-thumb {
    background: color-mix(in srgb, var(--md-primary) 38%, var(--md-outline));
    border-radius: 9999px;
    border: 2px solid transparent;
    background-clip: padding-box;
}

#albumsGrid::-webkit-scrollbar-thumb:hover,
.frame-mappings::-webkit-scrollbar-thumb:hover,
.modal::-webkit-scrollbar-thumb:hover {
    background: color-mix(in srgb, var(--md-primary) 52%, var(--md-outline));
    background-clip: padding-box;
}

.frame-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 120px 120px auto auto;
    gap: 1rem;
    align-items: center;
    background-color: var(--md-bg);
    border-radius: var(--md-radius-sm);
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
}

.frame-row span {
    color: var(--md-on-bg);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}

.frame-row input {
    width: 100%;
    height: 40px;
    padding: 0 1rem;
    background-color: var(--md-surface-container-low);
    border: none;
    border-bottom: 1px solid var(--md-outline);
    border-radius: 8px 8px 0 0;
    color: var(--md-on-bg);
    font-family: var(--font-mono);
    font-weight: 500;
    text-align: center;
    outline: none;
}

.frame-row input:focus {
    border-bottom: 2px solid var(--md-primary);
    background-color: var(--md-surface-container);
}

.new-frame-row {
    grid-template-columns: minmax(0, 1fr) 120px 120px;
}

.detail-info {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 1rem;
    font-size: 1rem;
}

.detail-label {
    color: var(--md-on-surface-variant);
    font-weight: 400;
}

.detail-info span:not(.detail-label) {
    display: block;
    min-width: 0;
    font-family: var(--font-mono);
    color: var(--md-on-bg);
    font-weight: 500;
    overflow-wrap: anywhere;
    word-break: break-word;
    white-space: normal;
}

* {
    scrollbar-width: thin;
    scroll-behavior: smooth;
}

.toast {
    pointer-events: none;
}

.toast.show {
    opacity: 1 !important;
    transform: translateX(-50%) translateY(0) scale(1) !important;
}

.toast.success {
    border-left: 4px solid #689f38;
}

.toast.error {
    border-left: 4px solid var(--md-error);
}

.error-text {
    color: var(--md-error);
    font-size: 0.875rem;
    font-weight: 500;
}

.help-text {
    color: var(--md-on-surface-variant);
    font-size: 0.875rem;
    line-height: 1.5;
}

.icon-sm {
    width: 18px;
    height: 18px;
}

.icon-md {
    width: 22px;
    height: 22px;
}

.album-card-action {
    position: relative;
    overflow: hidden;
    letter-spacing: 0.01em;
}

.album-card-action::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.18), transparent 55%);
    opacity: 0;
    transition: opacity var(--md-duration) var(--md-ease);
    pointer-events: none;
}

.album-card-action:hover::after,
.album-card-action:focus-visible::after {
    opacity: 1;
}

.album-card-action .icon-md {
    transition: transform var(--md-duration) var(--md-ease);
}

.album-card-action:hover .icon-md,
.album-card-action:focus-visible .icon-md {
    transform: scale(1.08);
}

.album-card-action:focus-visible {
    outline: 3px solid color-mix(in srgb, var(--md-primary) 28%, transparent);
    outline-offset: 2px;
}

.plan-editor-actions {
    align-items: stretch;
}

.plan-editor-action-btn {
    min-height: 64px;
    line-height: 1.25;
    white-space: normal;
    word-break: break-word;
}

@media (min-width: 640px) and (max-width: 1279px) {
    .plan-editor-actions > :last-child:nth-child(3) {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 15px;
        /* Slightly smaller base for mobile */
    }

    header {
        padding-left: 1rem !important;
        padding-right: 1rem !important;
    }

    #headerActions {
        transition: all 0.3s var(--md-ease);
    }

    .premium-glass {
        border-radius: 24px !important;
        padding: 1.25rem !important;
    }

    .frame-row {
        grid-template-columns: 1fr;
        padding: 1rem;
        gap: 0.5rem;
    }

    .frame-row input {
        text-align: left;
        padding-left: 0.5rem;
    }

    .detail-info {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    /* Show actions by default on mobile since hover isn't possible */
    .group .group-hover\:translate-y-0 {
        transform: translateY(0) !important;
    }

    .group .group-hover\:opacity-100 {
        opacity: 1 !important;
    }

    .staggered-item {
        margin-bottom: 0.5rem;
    }

    /* Improve spacing for filter shells on mobile */
    .album-filter-shell {
        margin-bottom: 0.25rem;
    }

    .tutorial-player-topbar,
    .tutorial-player-toolbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .tutorial-player-status {
        justify-content: flex-start;
    }

    .tutorial-toolbar-group {
        width: 100%;
    }

    .tutorial-stage {
        max-height: none;
    }

    .tutorial-tool-btn span {
        font-size: 0.78rem;
    }

    .tutorial-card {
        padding: 0.58rem 0.62rem;
    }

    .tutorial-modal-header::after {
        left: 1rem;
        right: 1rem;
    }

    .tutorial-side-nav {
        display: none !important;
    }
}