/* ====== TIME TRAVEL ELEVATOR - REDESIGN ====== */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;700&family=Shrikhand&family=Press+Start+2P&family=Orbitron:wght@400;700&family=Verdana&family=Comic+Neue:wght@700&family=Montserrat:wght@100;300&display=swap');

:root {
    /* === ERA 1: 1920s Art Deco === */
    --f1-gold: #D4AF37;
    --f1-black: #000000;
    --f1-navy: #0A1128;
    --f1-font-head: 'Playfair Display', serif;

    /* === ERA 2: 1960s Psychedelic === */
    --f2-pink: #FF00CC;
    --f2-green: #CCFF00;
    --f2-orange: #FF6600;
    --f2-purple: #6600CC;
    --f2-font-head: 'Shrikhand', cursive;

    /* === ERA 3: 1980s Neon Cyber === */
    --f3-neon-pink: #FF00FF;
    --f3-cyan: #00FFFF;
    --f3-grid-purple: #240046;
    --f3-font-head: 'Press Start 2P', cursive;
    --f3-font-body: 'Orbitron', sans-serif;

    /* === ERA 4: 2000s Web === */
    --f4-blue: #87CEEB;
    --f4-white: #FFFFFF;
    --f4-lime: #32CD32;
    --f4-silver: #C0C0C0;
    --f4-font-head: 'Comic Neue', cursive;
    --f4-font-body: 'Verdana', sans-serif;

    /* === ERA 5: 2100s Future === */
    --f5-white: #FFFFFF;
    --f5-glow: #E0F7FA;
    --f5-glass: rgba(255, 255, 255, 0.1);
    --f5-font-head: 'Montserrat', sans-serif;

    /* === GLOBAL === */
    --panel-bg: rgba(0, 0, 0, 0.8);
    --text-primary: #ffffff;
}

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

html,
body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: #000;
    color: var(--text-primary);
    font-family: sans-serif;
}

/* ====== LAYOUT ====== */

.elevator-container {
    display: flex;
    width: 100%;
    height: 100vh;
    position: relative;
    z-index: 10;
}

.elevator-shaft {
    flex: 1;
    height: 100%;
    overflow-y: auto;
    scroll-behavior: smooth;
    position: relative;
    scrollbar-width: none;
    /* Firefox */
}

.elevator-shaft::-webkit-scrollbar {
    display: none;
    /* Chrome/Safari */
}

.floor {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 2rem;
    z-index: 2;
}

.floor-content {
    max-width: 800px;
    width: 100%;
    text-align: center;
    position: relative;
    z-index: 3;
    opacity: 0.6;
    transform: translateY(20px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: opacity, transform;
}

.floor.active .floor-content {
    opacity: 1;
    transform: translateY(0);
}

/* ====== BACKGROUND LAYERS ====== */

.background-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.bg-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1.2s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    background-size: cover;
    background-position: center;
    transform: scale(1.1);
    will-change: opacity, transform;
}

.bg-layer.active {
    opacity: 1;
    transform: scale(1.05);
}

/* --- ERA 1: 1920s Art Deco --- */
.bg-1920s {
    background: radial-gradient(circle at center, #1a1a1a, #000);
    overflow: hidden;
}

.deco-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(212, 175, 55, 0.05) 10px, rgba(212, 175, 55, 0.05) 11px),
        repeating-linear-gradient(-45deg, transparent, transparent 10px, rgba(212, 175, 55, 0.05) 10px, rgba(212, 175, 55, 0.05) 11px);
    z-index: 1;
}

.deco-border {
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    border: 2px solid var(--f1-gold);
    box-shadow: inset 0 0 20px rgba(212, 175, 55, 0.2);
    z-index: 2;
}

.deco-border::before,
.deco-border::after {
    content: '';
    position: absolute;
    width: 100px;
    height: 100px;
    border: 2px solid var(--f1-gold);
    transition: all 0.5s ease;
}

.deco-border::before {
    top: -10px;
    left: -10px;
    border-right: none;
    border-bottom: none;
}

.deco-border::after {
    bottom: -10px;
    right: -10px;
    border-left: none;
    border-top: none;
}

/* Film Grain Animation */
.bg-1920s::after {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.1'/%3E%3C/svg%3E");
    animation: grain 0.5s steps(5) infinite;
    pointer-events: none;
    z-index: 3;
    opacity: 0.15;
}

@keyframes grain {

    0%,
    100% {
        transform: translate(0, 0);
    }

    10% {
        transform: translate(-5%, -10%);
    }

    20% {
        transform: translate(-15%, 5%);
    }

    30% {
        transform: translate(7%, -25%);
    }

    40% {
        transform: translate(-5%, 25%);
    }

    50% {
        transform: translate(-15%, 10%);
    }

    60% {
        transform: translate(15%, 0%);
    }

    70% {
        transform: translate(0%, 15%);
    }

    80% {
        transform: translate(3%, 35%);
    }

    90% {
        transform: translate(-10%, 10%);
    }
}

/* Floor 1 Content Styling */
.era-1920s h1 {
    font-family: var(--f1-font-head);
    font-size: 4rem;
    color: var(--f1-gold);
    text-transform: uppercase;
    letter-spacing: 5px;
    margin-bottom: 1rem;
    text-shadow: 0 0 10px rgba(212, 175, 55, 0.5);
}

.era-1920s .subtitle {
    font-family: sans-serif;
    font-size: 1.1rem;
    color: #fff;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 2rem;
    border-top: 1px solid var(--f1-gold);
    border-bottom: 1px solid var(--f1-gold);
    display: inline-block;
    padding: 0.5rem 2rem;
}

.era-1920s .content-box {
    font-family: var(--f1-font-head);
    font-size: 1.1rem;
    color: #ddd;
    line-height: 1.8;
}

.era-1920s .content-box .tagline {
    font-size: 1.4rem;
    color: var(--f1-gold);
    font-style: italic;
    margin-bottom: 1.5rem;
}

.era-1920s .content-box .highlight {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 1.5rem;
    border-top: 1px solid rgba(212, 175, 55, 0.3);
    padding-top: 1rem;
}

/* --- ERA 2: 1960s Psychedelic --- */
.bg-1960s {
    background: #000;
    overflow: hidden;
}

.tie-dye-bg {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, var(--f2-pink), var(--f2-orange), var(--f2-green), var(--f2-purple), var(--f2-pink));
    background-size: 100% 100%;
    filter: blur(20px);
    animation: tieDyeSpin 20s linear infinite;
    opacity: 0.6;
}

@keyframes tieDyeSpin {
    0% {
        transform: rotate(0deg) scale(1);
    }

    50% {
        transform: rotate(180deg) scale(1.2);
    }

    100% {
        transform: rotate(360deg) scale(1);
    }
}

.floating-peace,
.floating-flower {
    position: absolute;
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.3);
    animation: floatAround 10s ease-in-out infinite;
    pointer-events: none;
}

.floating-peace {
    top: 20%;
    left: 20%;
    animation-delay: 0s;
}

.floating-flower {
    bottom: 20%;
    right: 20%;
    animation-delay: -5s;
}

@keyframes floatAround {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    25% {
        transform: translate(50px, -50px) rotate(90deg);
    }

    50% {
        transform: translate(0, -100px) rotate(180deg);
    }

    75% {
        transform: translate(-50px, -50px) rotate(270deg);
    }
}

/* Floor 2 Content Styling */
.era-1960s .groovy-text {
    font-family: var(--f2-font-head);
    font-size: 4.5rem;
    color: var(--f2-green);
    text-shadow:
        3px 3px 0 var(--f2-pink),
        6px 6px 0 var(--f2-purple);
    transform: rotate(-3deg);
    margin-bottom: 1rem;
    animation: groovyPulse 2s ease-in-out infinite;
}

@keyframes groovyPulse {

    0%,
    100% {
        transform: rotate(-3deg) scale(1);
    }

    50% {
        transform: rotate(-3deg) scale(1.05);
    }
}

.era-1960s .subtitle {
    font-family: 'Courier New', monospace;
    font-size: 1.2rem;
    color: #fff;
    background: var(--f2-purple);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    display: inline-block;
    margin-bottom: 1.5rem;
    box-shadow: 0 0 15px var(--f2-purple);
}

.era-1960s .content-box {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.1rem;
    color: #fff;
    line-height: 1.8;
}

.era-1960s .content-box .tagline {
    font-family: var(--f2-font-head);
    font-size: 1.6rem;
    color: var(--f2-green);
    margin-bottom: 1rem;
}

.era-1960s .content-box .highlight {
    font-size: 1rem;
    color: var(--f2-pink);
    margin-top: 1rem;
    font-style: italic;
}

/* --- ERA 3: 1980s Neon Cyber --- */
.bg-1980s {
    background: linear-gradient(to bottom, var(--f3-grid-purple) 0%, #000 100%);
    overflow: hidden;
    perspective: 500px;
}

.cyber-grid-floor {
    position: absolute;
    bottom: -50%;
    left: -50%;
    width: 200%;
    height: 100%;
    background:
        linear-gradient(transparent 0%, var(--f3-neon-pink) 2%, transparent 3%),
        linear-gradient(90deg, transparent 0%, var(--f3-neon-pink) 2%, transparent 3%);
    background-size: 50px 50px;
    transform: rotateX(60deg);
    animation: gridMove 2s linear infinite;
    box-shadow: 0 0 20px var(--f3-neon-pink);
    opacity: 0.5;
}

.cyber-grid-ceiling {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 100%;
    background:
        linear-gradient(transparent 0%, var(--f3-cyan) 2%, transparent 3%),
        linear-gradient(90deg, transparent 0%, var(--f3-cyan) 2%, transparent 3%);
    background-size: 50px 50px;
    transform: rotateX(-60deg);
    animation: gridMove 2s linear infinite;
    opacity: 0.3;
}

@keyframes gridMove {
    0% {
        background-position: 0 0;
    }

    100% {
        background-position: 0 50px;
    }
}

.neon-sun {
    position: absolute;
    bottom: 30%;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 200px;
    background: linear-gradient(to top, var(--f3-neon-pink), #ffcc00);
    border-radius: 50%;
    box-shadow: 0 0 50px var(--f3-neon-pink);
    clip-path: polygon(0 0, 100% 0, 100% 60%, 0 60%, 0 70%, 100% 70%, 100% 80%, 0 80%, 0 90%, 100% 90%, 100% 100%, 0 100%);
}

/* Floor 3 Content Styling */
.era-1980s .neon-text {
    font-family: var(--f3-font-head);
    font-size: 4rem;
    color: #fff;
    text-shadow:
        0 0 5px #fff,
        0 0 10px #fff,
        0 0 20px var(--f3-neon-pink),
        0 0 40px var(--f3-neon-pink),
        0 0 80px var(--f3-neon-pink);
    animation: neonFlicker 3s infinite alternate;
}

@keyframes neonFlicker {

    0%,
    19%,
    21%,
    23%,
    25%,
    54%,
    56%,
    100% {
        text-shadow:
            0 0 5px #fff,
            0 0 10px #fff,
            0 0 20px var(--f3-neon-pink),
            0 0 40px var(--f3-neon-pink),
            0 0 80px var(--f3-neon-pink);
        opacity: 1;
    }

    20%,
    24%,
    55% {
        text-shadow: none;
        opacity: 0.5;
    }
}

.era-1980s .subtitle {
    font-family: var(--f3-font-body);
    font-size: 1.2rem;
    color: var(--f3-cyan);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 1.5rem;
    border: 2px solid var(--f3-cyan);
    padding: 0.5rem 1rem;
    box-shadow: 0 0 15px var(--f3-cyan), inset 0 0 15px var(--f3-cyan);
}

.era-1980s .content-box {
    font-family: var(--f3-font-body);
    color: #ddd;
    font-size: 1rem;
    line-height: 1.8;
}

.era-1980s .content-box .tagline {
    font-family: var(--f3-font-head);
    font-size: 1.1rem;
    color: var(--f3-neon-pink);
    margin-bottom: 1rem;
    text-shadow: 0 0 10px var(--f3-neon-pink);
}

.era-1980s .content-box .highlight {
    font-size: 0.95rem;
    color: var(--f3-cyan);
    margin-top: 1rem;
    text-shadow: 0 0 5px var(--f3-cyan);
}

/* --- ERA 4: 2000s Web --- */
.bg-2000s {
    background: linear-gradient(to bottom, #5c93ed 0%, #ffffff 100%);
    /* XP Blue */
    overflow: hidden;
}

.win-xp-hill {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 30%;
    background: linear-gradient(to top, #3a9e2d 0%, #65d34e 100%);
    border-top-left-radius: 50% 20%;
    border-top-right-radius: 50% 20%;
    transform: scaleX(1.5);
}

.cursor-trail {
    position: absolute;
    width: 10px;
    height: 10px;
    background: radial-gradient(circle, #fff, transparent);
    pointer-events: none;
    mix-blend-mode: screen;
    animation: sparkle 1s linear forwards;
}

@keyframes sparkle {
    0% {
        transform: scale(1);
        opacity: 1;
    }

    100% {
        transform: scale(0);
        opacity: 0;
    }
}

/* Floor 4 Content Styling */
.era-2000s .browser-window {
    background: #ece9d8;
    border: 1px solid #0054e3;
    border-radius: 8px 8px 0 0;
    box-shadow: 5px 5px 15px rgba(0, 0, 0, 0.3);
    overflow: hidden;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    font-family: 'Verdana', sans-serif;
    text-align: left;
}

.era-2000s .window-bar {
    background: linear-gradient(to bottom, #0058ee 0%, #3593ff 4%, #288eff 18%, #127dff 44%, #0369ff 100%);
    padding: 5px 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #fff;
    font-weight: bold;
    text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.5);
}

.era-2000s .window-controls button {
    width: 20px;
    height: 20px;
    border: 1px solid #fff;
    background: transparent;
    color: #fff;
    font-size: 12px;
    line-height: 1;
    border-radius: 3px;
    margin-left: 2px;
    cursor: pointer;
}

.era-2000s .window-controls button:last-child {
    background: #e04238;
    border-color: #b02b22;
}

.era-2000s .window-body {
    padding: 20px;
    color: #000;
}

.era-2000s h2 {
    font-family: 'Comic Neue', cursive;
    color: #000080;
    text-decoration: underline;
    margin-bottom: 10px;
}

.era-2000s .subtitle {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.era-2000s marquee {
    background: #ffffcc;
    border: 1px solid #999;
    padding: 5px;
    margin-bottom: 15px;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
}

.era-2000s .tagline {
    color: #000;
    font-family: 'Verdana', sans-serif;
    font-size: 0.9rem;
    font-weight: bold;
    margin-bottom: 10px;
}

.era-2000s .window-body p:last-child {
    color: #333;
    font-size: 0.85rem;
}

.era-2000s .glossy-btn {
    background: linear-gradient(to bottom, #f0f0f0 0%, #dcdcdc 50%, #c0c0c0 51%, #a0a0a0 100%);
    border: 1px solid #808080;
    padding: 5px 20px;
    border-radius: 3px;
    cursor: pointer;
    font-weight: bold;
}

.era-2000s .glossy-btn:active {
    background: #ccc;
}

/* --- ERA 5: 2100s Future --- */
.bg-2100s {
    background: radial-gradient(circle at center, #0a1128 0%, #000000 100%);
    overflow: hidden;
}

.holo-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(224, 247, 250, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(224, 247, 250, 0.05) 1px, transparent 1px);
    background-size: 50px 50px;
    perspective: 1000px;
    transform: scale(1.2);
    opacity: 0.5;
}

.floating-orb {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(255, 255, 255, 0.8), rgba(224, 247, 250, 0.4), rgba(224, 247, 250, 0));
    box-shadow: 0 0 20px rgba(224, 247, 250, 0.4);
    animation: floatOrb 10s ease-in-out infinite;
}

.orb-1 {
    width: 100px;
    height: 100px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 60px;
    height: 60px;
    bottom: 30%;
    right: 15%;
    animation-delay: -3s;
}

.orb-3 {
    width: 40px;
    height: 40px;
    top: 60%;
    left: 60%;
    animation-delay: -6s;
}

@keyframes floatOrb {

    0%,
    100% {
        transform: translate(0, 0);
    }

    50% {
        transform: translate(0, -30px);
    }
}

/* Floor 5 Content Styling */
.era-2100s .glass-panel {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.era-2100s .glass-panel::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transform: rotate(45deg);
    animation: shine 5s infinite;
}

@keyframes shine {
    0% {
        transform: translateX(-100%) rotate(45deg);
    }

    100% {
        transform: translateX(100%) rotate(45deg);
    }
}

.era-2100s h1 {
    font-family: var(--f5-font-head);
    font-weight: 100;
    font-size: 4rem;
    color: var(--f5-white);
    letter-spacing: 10px;
    text-transform: uppercase;
    margin-bottom: 1rem;
    text-shadow: 0 0 20px var(--f5-glow);
}

.era-2100s .subtitle {
    font-family: var(--f5-font-head);
    font-weight: 300;
    font-size: 1.2rem;
    color: var(--f5-glow);
    letter-spacing: 5px;
    margin-bottom: 1.5rem;
    opacity: 0.8;
}

.era-2100s .glass-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.era-2100s .glass-card .tagline {
    font-size: 1.3rem;
    font-weight: 300;
    color: var(--f5-glow);
    margin-bottom: 1rem;
    letter-spacing: 1px;
}

.era-2100s .glass-card p {
    font-family: var(--f5-font-head);
    font-weight: 300;
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

.era-2100s .glass-card .highlight {
    font-size: 0.95rem;
    color: var(--f5-glow);
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.era-2100s .connect-links {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.era-2100s .future-link {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(224, 247, 250, 0.3);
    border-radius: 30px;
    color: var(--f5-glow);
    text-decoration: none;
    font-family: var(--f5-font-head);
    font-weight: 300;
    font-size: 0.95rem;
    letter-spacing: 2px;
    transition: all 0.3s ease;
}

.era-2100s .future-link:hover {
    background: rgba(224, 247, 250, 0.15);
    border-color: var(--f5-glow);
    box-shadow: 0 0 20px rgba(224, 247, 250, 0.3);
    transform: translateY(-2px);
}

/* ====== CONTROLS PANEL ====== */

.floating-controls {
    position: fixed;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: flex-end;
}

.elevator-panel {
    background: var(--panel-bg);
    padding: 1.5rem;
    border-radius: 10px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    min-width: 120px;
    transition: all 0.5s ease;
}

.panel-header {
    text-align: center;
    margin-bottom: 1rem;
    font-weight: bold;
    letter-spacing: 2px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding-bottom: 0.5rem;
}

.floor-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.floor-btn {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    padding: 0.8rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 5px;
    transition: all 0.3s ease;
    font-family: inherit;
}

.floor-btn:hover,
.floor-btn.active {
    background: rgba(255, 255, 255, 0.3);
    border-color: #fff;
}

.floor-num {
    font-weight: bold;
    margin-right: 10px;
}

.floor-label {
    font-size: 0.8rem;
    opacity: 0.8;
}

.panel-indicator {
    margin-top: 1rem;
    background: #000;
    padding: 0.5rem;
    text-align: center;
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.indicator-text {
    font-size: 0.7rem;
    text-transform: uppercase;
    opacity: 0.7;
    margin-bottom: 0.2rem;
}

.current-floor {
    font-size: 1.5rem;
    font-weight: bold;
    color: #fff;
    font-family: monospace;
}

.sound-toggle {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #fff;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.sound-toggle:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ====== TUTORIAL MODAL ====== */
.tutorial-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
}

.tutorial-modal.hidden {
    display: none !important;
}

.tutorial-content {
    background: linear-gradient(135deg, rgba(30, 30, 40, 0.95) 0%, rgba(15, 15, 25, 0.98) 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 3.5rem 4rem;
    width: 90%;
    max-width: 700px;
    border-radius: 24px;
    position: relative;
    text-align: center;
    box-shadow:
        0 25px 50px -12px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    animation: modalSlideIn 0.5s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px) scale(0.95);
    }

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

.tutorial-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.5), rgba(255, 0, 204, 0.5), rgba(0, 255, 255, 0.5), transparent);
}

.tutorial-content h2 {
    font-family: 'Playfair Display', serif;
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, #D4AF37, #FF00CC, #00FFFF);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
}

.tutorial-sections {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 2.5rem 0;
    text-align: left;
}

.tutorial-section {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    padding: 1.5rem;
    transition: all 0.3s ease;
}

.tutorial-section:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.tutorial-section h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: #D4AF37;
    margin-bottom: 1rem;
}

.tutorial-section p,
.tutorial-section li {
    font-family: 'Montserrat', sans-serif;
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
}

.tutorial-section ul {
    list-style: none;
    padding: 0;
}

.tutorial-section li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
}

.tutorial-section li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: #00FFFF;
    font-weight: bold;
}

.tutorial-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
    font-size: 1.2rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tutorial-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
    transform: rotate(90deg);
}

.tutorial-progress-container {
    width: 100%;
    height: 3px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    margin-top: 2rem;
    overflow: hidden;
}

.tutorial-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #D4AF37, #FF00CC, #00FFFF);
    width: 0%;
    border-radius: 3px;
    transition: width 0.1s linear;
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.5);
}

.tutorial-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-top: 2rem;
}

.tutorial-skip {
    padding: 1rem 2.5rem;
    background: transparent;
    color: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-family: 'Montserrat', sans-serif;
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 1px;
    cursor: pointer;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.tutorial-skip:hover {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.4);
    background: rgba(255, 255, 255, 0.05);
}

.tutorial-start {
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, #D4AF37, #FF00CC);
    color: #fff;
    border: none;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 1px;
    cursor: pointer;
    border-radius: 12px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.tutorial-start:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(212, 175, 55, 0.4);
    background: linear-gradient(135deg, #e5c04b, #ff33cc);
}

/* ====== TRANSITION OVERLAYS ====== */
.transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    pointer-events: none;
}

.transition-effect {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    pointer-events: none;
}

.transition-effect.active {
    opacity: 1;
    pointer-events: auto;
}

/* Effect 1: 1920s Gate Close */
.effect-gate {
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.effect-gate::before,
.effect-gate::after {
    content: '';
    position: absolute;
    top: 0;
    width: 50%;
    height: 100%;
    background: repeating-linear-gradient(90deg, #000, #000 20px, var(--f1-gold) 20px, var(--f1-gold) 22px);
    transition: transform 0.8s ease-in-out;
}

.effect-gate::before {
    left: 0;
    transform: translateX(-100%);
}

.effect-gate::after {
    right: 0;
    transform: translateX(100%);
}

.effect-gate.active::before {
    transform: translateX(0);
}

.effect-gate.active::after {
    transform: translateX(0);
}

/* Effect 2: Kaleidoscope */
.effect-kaleidoscope {
    background: radial-gradient(circle, transparent, #000);
    mix-blend-mode: hard-light;
}

.effect-kaleidoscope::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(var(--f2-pink), var(--f2-green), var(--f2-orange), var(--f2-purple), var(--f2-pink));
    opacity: 0;
    transition: opacity 0.5s;
}

.effect-kaleidoscope.active::before {
    opacity: 0.8;
    animation: kaleidoscopeSpin 1.5s linear forwards;
}

@keyframes kaleidoscopeSpin {
    0% {
        transform: rotate(0deg) scale(0.1);
        opacity: 0;
    }

    50% {
        opacity: 1;
    }

    100% {
        transform: rotate(720deg) scale(2);
        opacity: 0;
    }
}

/* Effect 3: VHS Glitch */
.effect-vhs {
    background: transparent;
    mix-blend-mode: exclusion;
}

.effect-vhs::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(0deg,
            transparent,
            transparent 2px,
            rgba(255, 255, 255, 0.1) 2px,
            rgba(255, 255, 255, 0.1) 4px);
    animation: vhsScan 0.1s linear infinite;
    opacity: 0;
}

.effect-vhs.active::before {
    opacity: 1;
}

.effect-vhs::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 0, 0, 0.2);
    mix-blend-mode: color-dodge;
    transform: translateX(-5px);
    opacity: 0;
}

.effect-vhs.active::after {
    opacity: 0.5;
    animation: vhsGlitch 0.2s steps(2) infinite;
}

@keyframes vhsScan {
    0% {
        background-position: 0 0;
    }

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

@keyframes vhsGlitch {
    0% {
        transform: translate(-5px, 0);
    }

    25% {
        transform: translate(5px, 2px);
    }

    50% {
        transform: translate(-2px, -2px);
    }

    75% {
        transform: translate(2px, 5px);
    }

    100% {
        transform: translate(-5px, 0);
    }
}

/* Effect 4: Window Wipe */
.effect-window {
    background: #ece9d8;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: scaleY(0);
    transform-origin: center;
    transition: transform 0.5s ease-in-out;
    border: 5px solid #0054e3;
}

.effect-window::before {
    content: 'Loading...';
    font-family: 'Verdana', sans-serif;
    color: #000;
    font-size: 2rem;
}

.effect-window.active {
    transform: scaleY(1);
}

/* Effect 5: Blur Warp */
.effect-blur {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(0px);
    transition: backdrop-filter 0.5s ease;
}

.effect-blur.active {
    backdrop-filter: blur(20px);
}

.effect-blur::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    opacity: 1;
    pointer-events: auto;
}

/* Effect 1: 1920s Gate Close */
.effect-gate {
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.effect-gate::before,
.effect-gate::after {
    content: '';
    position: absolute;
    top: 0;
    width: 50%;
    height: 100%;
    background: repeating-linear-gradient(90deg, #000, #000 20px, var(--f1-gold) 20px, var(--f1-gold) 22px);
    transition: transform 0.8s ease-in-out;
}

.effect-gate::before {
    left: 0;
    transform: translateX(-100%);
}

.effect-gate::after {
    right: 0;
    transform: translateX(100%);
}

.effect-gate.active::before {
    transform: translateX(0);
}

.effect-gate.active::after {
    transform: translateX(0);
}

/* Effect 2: Kaleidoscope */
.effect-kaleidoscope {
    background: radial-gradient(circle, transparent, #000);
    mix-blend-mode: hard-light;
}

.effect-kaleidoscope::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(var(--f2-pink), var(--f2-green), var(--f2-orange), var(--f2-purple), var(--f2-pink));
    opacity: 0;
    transition: opacity 0.5s;
}

.effect-kaleidoscope.active::before {
    opacity: 0.8;
    animation: kaleidoscopeSpin 1.5s linear forwards;
}

@keyframes kaleidoscopeSpin {
    0% {
        transform: rotate(0deg) scale(0.1);
        opacity: 0;
    }

    50% {
        opacity: 1;
    }

    100% {
        transform: rotate(720deg) scale(2);
        opacity: 0;
    }
}

/* Effect 3: VHS Glitch */
.effect-vhs {
    background: transparent;
    mix-blend-mode: exclusion;
}

.effect-vhs::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(0deg,
            transparent,
            transparent 2px,
            rgba(255, 255, 255, 0.1) 2px,
            rgba(255, 255, 255, 0.1) 4px);
    animation: vhsScan 0.1s linear infinite;
    opacity: 0;
}

.effect-vhs.active::before {
    opacity: 1;
}

.effect-vhs::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 0, 0, 0.2);
    mix-blend-mode: color-dodge;
    transform: translateX(-5px);
    opacity: 0;
}

.effect-vhs.active::after {
    opacity: 0.5;
    animation: vhsGlitch 0.2s steps(2) infinite;
}

@keyframes vhsScan {
    0% {
        background-position: 0 0;
    }

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

@keyframes vhsGlitch {
    0% {
        transform: translate(-5px, 0);
    }

    25% {
        transform: translate(5px, 2px);
    }

    50% {
        transform: translate(-2px, -2px);
    }

    75% {
        transform: translate(2px, 5px);
    }

    100% {
        transform: translate(-5px, 0);
    }
}

/* Effect 4: Window Wipe */
.effect-window {
    background: #ece9d8;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: scaleY(0);
    transform-origin: center;
    transition: transform 0.5s ease-in-out;
    border: 5px solid #0054e3;
}

.effect-window::before {
    content: 'Loading...';
    font-family: 'Verdana', sans-serif;
    color: #000;
    font-size: 2rem;
}

.effect-window.active {
    transform: scaleY(1);
}

/* Effect 5: Blur Warp */
.effect-blur {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(0px);
    transition: backdrop-filter 0.5s ease;
}

.effect-blur.active {
    backdrop-filter: blur(20px);
}

.effect-blur::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    width: 100px;
    height: 100px;
    border-radius: 50%;
    box-shadow: 0 0 100px 50px rgba(255, 255, 255, 0.8);
    opacity: 0;
    transition: all 0.5s ease;
}

.effect-blur.active::after {
    transform: translate(-50%, -50%) scale(10);
    opacity: 1;
}

/* ====== DYNAMIC PANEL STYLES ====== */

/* 1920s Panel */
.panel-1920s {
    border-color: var(--f1-gold);
    font-family: var(--f1-font-head);
    background: rgba(10, 17, 40, 0.9);
    box-shadow: 0 0 15px rgba(212, 175, 55, 0.3), inset 0 0 10px rgba(212, 175, 55, 0.1);
}

.panel-1920s .panel-header {
    border-bottom-color: var(--f1-gold);
    color: var(--f1-gold);
}

.panel-1920s .floor-btn {
    border-color: var(--f1-gold);
    color: #fff;
}

.panel-1920s .floor-btn.active {
    background: rgba(212, 175, 55, 0.3);
}

.panel-1920s .panel-indicator {
    border-color: var(--f1-gold);
    color: var(--f1-gold);
}

/* 1960s Panel */
.panel-1960s {
    border-color: var(--f2-pink);
    font-family: 'Courier New', monospace;
    background: rgba(50, 0, 50, 0.8);
    box-shadow: 0 0 15px var(--f2-pink);
}

.panel-1960s .panel-header {
    border-bottom-color: var(--f2-green);
    color: var(--f2-pink);
}

.panel-1960s .floor-btn {
    border-color: var(--f2-orange);
    color: #fff;
}

.panel-1960s .floor-btn.active {
    background: var(--f2-purple);
    border-color: var(--f2-green);
}

.panel-1960s .panel-indicator {
    border-color: var(--f2-pink);
    color: var(--f2-green);
}

/* 1980s Panel */
.panel-1980s {
    border-color: var(--f3-cyan);
    font-family: var(--f3-font-body);
    background: rgba(0, 0, 0, 0.9);
    box-shadow: 0 0 10px var(--f3-neon-pink), inset 0 0 10px var(--f3-cyan);
    border-radius: 0;
}

.panel-1980s .panel-header {
    border-bottom-color: var(--f3-neon-pink);
    color: var(--f3-cyan);
    text-shadow: 0 0 5px var(--f3-cyan);
}

.panel-1980s .floor-btn {
    border-color: var(--f3-neon-pink);
    color: #fff;
    border-radius: 0;
}

.panel-1980s .floor-btn.active {
    background: var(--f3-neon-pink);
    color: #000;
    box-shadow: 0 0 10px var(--f3-neon-pink);
}

.panel-1980s .panel-indicator {
    border-color: var(--f3-cyan);
    color: var(--f3-neon-pink);
    border-radius: 0;
}

/* 2000s Panel */
.panel-2000s {
    border: 2px solid #0054e3;
    font-family: 'Verdana', sans-serif;
    background: #ece9d8;
    color: #000;
    border-radius: 5px 5px 0 0;
    box-shadow: 3px 3px 10px rgba(0, 0, 0, 0.5);
}

.panel-2000s .panel-header {
    background: linear-gradient(to bottom, #0058ee 0%, #3593ff 100%);
    color: #fff;
    border: none;
    padding: 5px;
    margin: -1.5rem -1.5rem 1rem -1.5rem;
    border-radius: 5px 5px 0 0;
}

.panel-2000s .floor-btn {
    background: #fff;
    border: 1px solid #7f9db9;
    color: #000;
    border-radius: 3px;
}

.panel-2000s .floor-btn:hover {
    background: #e3f0ff;
    border-color: #0054e3;
}

.panel-2000s .floor-btn.active {
    background: #d4e6fc;
    /* XP Highlight */
    border: 1px solid #0054e3;
    font-weight: bold;
}

.panel-2000s .panel-indicator {
    background: #000;
    border: 2px inset #fff;
    color: #0f0;
    font-family: 'Courier New', monospace;
}

.panel-2000s .indicator-text {
    color: #ccc;
}

/* 2100s Panel */
.panel-2100s {
    border: 1px solid rgba(255, 255, 255, 0.2);
    font-family: var(--f5-font-head);
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
    border-radius: 20px;
}

.panel-2100s .panel-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--f5-glow);
    letter-spacing: 5px;
}

.panel-2100s .floor-btn {
    background: rgba(255, 255, 255, 0.05);
    border: none;
    color: var(--f5-white);
    border-radius: 10px;
}

.panel-2100s .floor-btn.active {
    background: rgba(224, 247, 250, 0.2);
    box-shadow: 0 0 15px var(--f5-glow);
}

.panel-2100s .panel-indicator {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--f5-glow);
}/* ====== MOBILE OPTIMIZATION ====== */
@media (max-width: 768px) {

    /* Typography Scaling */
    html {
        font-size: 14px;
    }

    h1,
    .era-1920s h1,
    .era-1960s .groovy-text,
    .era-1980s .neon-text,
    .era-2100s h1 {
        font-size: 2.5rem !important;
        letter-spacing: 2px !important;
    }

    h2 {
        font-size: 2rem !important;
    }

    .tagline,
    .era-1920s .content-box .tagline,
    .era-1960s .content-box .tagline,
    .era-1980s .content-box .tagline,
    .era-2000s .tagline,
    .era-2100s .glass-card .tagline {
        font-size: 1.1rem !important;
    }

    /* Layout Adjustments */
    .floor {
        padding: 1rem;
    }

    .floor-content {
        width: 100%;
        padding: 0 1rem;
    }

    /* Controls Panel - Dock to Bottom */
    .floating-controls {
        top: auto;
        bottom: 0;
        right: 0;
        left: 0;
        transform: none;
        width: 100%;
        flex-direction: row-reverse;
        align-items: center;
        justify-content: space-between;
        padding: 10px;
        background: rgba(0, 0, 0, 0.8);
        backdrop-filter: blur(10px);
        border-top: 1px solid rgba(255, 255, 255, 0.2);
    }

    .elevator-panel {
        flex-direction: row;
        width: 100%;
        min-width: auto;
        padding: 0.5rem;
        gap: 0.5rem;
        overflow-x: auto;
        border: none;
        background: transparent;
        box-shadow: none;
    }

    .panel-header {
        display: none;
    }

    .floor-buttons {
        flex-direction: row;
        width: 100%;
        justify-content: space-between;
    }

    .floor-btn {
        padding: 0.5rem;
        flex: 1;
        justify-content: center;
        min-width: 40px;
    }

    .floor-label {
        display: none;
    }

    .floor-num {
        margin-right: 0;
        font-size: 1.2rem;
    }

    .panel-indicator {
        display: none;
    }

    .sound-toggle {
        width: 35px;
        height: 35px;
        margin-right: 10px;
    }

    /* Component Adjustments */
    .tutorial-content {
        padding: 2rem;
        width: 95%;
    }

    .tutorial-content h2 {
        font-size: 2rem;
    }

    .tutorial-sections {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin: 1.5rem 0;
    }

    .tutorial-actions {
        flex-direction: column;
        gap: 1rem;
    }

    .tutorial-skip,
    .tutorial-start {
        width: 100%;
    }

    /* Era Specific Tweaks */
    .deco-border {
        left: 10px;
        right: 10px;
        top: 10px;
        bottom: 80px;
        /* Space for bottom controls */
    }

    .era-2000s .browser-window {
        max-width: 100%;
        border-radius: 0;
    }

    .era-2100s .glass-panel {
        padding: 1.5rem;
    }
}