/* =========================================================
   bada.quest - Memphis-Inspired Digital Quest
   Sunset-Warm Palette | Organic-Flow Layout | Typewriter FX
   ========================================================= */

/* --- CSS Custom Properties --- */
:root {
    --deep-night: #2D1B69;
    --sunset-coral: #FF6B6B;
    --tangerine-pop: #FF8A65;
    --golden-hour: #FFAB40;
    --blush-cloud: #FFD3C2;
    --cream-canvas: #FFF5EE;
    --dusk-lavender: #9C89B8;
    --charcoal-script: #2A2438;

    --font-display: 'Nunito', sans-serif;
    --font-body: 'Quicksand', sans-serif;
    --font-accent: 'Gaegu', cursive;
    --font-mono: 'Fira Code', monospace;

    --bouncy-ease: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

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

body {
    font-family: var(--font-body);
    font-weight: 500;
    color: var(--charcoal-script);
    background-color: var(--cream-canvas);
    line-height: 1.72;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* --- Confetti Background Layer --- */
#confetti-layer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.confetti-shape {
    position: absolute;
    will-change: transform;
}

/* Confetti entrance animation */
@keyframes confettiFall {
    0% {
        opacity: 0;
        transform: translateY(-120px) rotate(0deg);
    }
    40% {
        opacity: 1;
    }
    100% {
        opacity: 1;
        transform: translateY(0) rotate(var(--confetti-end-rotation, 45deg));
    }
}

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

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

/* --- Sections --- */
.section {
    position: relative;
    z-index: 1;
}

.section--cream {
    background-color: var(--cream-canvas);
}

.section--indigo {
    background-color: var(--deep-night);
    color: var(--cream-canvas);
}

.section--terminal {
    background-color: var(--deep-night);
    color: var(--cream-canvas);
}

/* --- Hero Section --- */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 4rem 2rem;
}

.hero-card {
    background: rgba(255, 211, 194, 0.35);
    backdrop-filter: blur(16px) saturate(1.4);
    -webkit-backdrop-filter: blur(16px) saturate(1.4);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 2rem;
    padding: clamp(2.5rem, 5vw, 4.5rem);
    max-width: 800px;
    width: 90%;
    transform: rotate(2.5deg);
    box-shadow: 0 8px 32px rgba(45, 27, 105, 0.12);
    text-align: center;
    opacity: 0;
    animation: heroCardIn 0.8s 0.5s var(--bouncy-ease) forwards;
}

@keyframes heroCardIn {
    from {
        opacity: 0;
        transform: rotate(2.5deg) scale(0.92) translateY(30px);
    }
    to {
        opacity: 1;
        transform: rotate(2.5deg) scale(1) translateY(0);
    }
}

#hero-headline {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: clamp(2.8rem, 6vw, 5.2rem);
    letter-spacing: -0.03em;
    line-height: 1.15;
    color: var(--charcoal-script);
    min-height: 1.2em;
    position: relative;
    display: inline-block;
}

.hero-subtitle {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: clamp(1rem, 1.8vw, 1.2rem);
    line-height: 1.72;
    color: var(--charcoal-script);
    margin-top: 1.5rem;
    opacity: 0;
    transform: translateY(20px);
}

.hero-subtitle.visible {
    animation: fadeInUp 600ms ease-out forwards;
}

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

.hero-badge {
    position: absolute;
    top: 15%;
    right: 8%;
}

/* --- Typewriter Effect --- */
.typewriter .char {
    opacity: 0;
    transition: opacity 0.05s;
}

.typewriter .char.visible {
    opacity: 1;
}

.typewriter-cursor {
    display: inline-block;
    width: 3px;
    height: 1.1em;
    background-color: var(--golden-hour);
    vertical-align: text-bottom;
    margin-left: 2px;
    animation: cursorBlink 530ms step-end infinite;
}

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

/* --- Hangul Badges --- */
.hangul-badge {
    display: inline-block;
    font-family: var(--font-accent);
    font-weight: 400;
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    background-color: var(--blush-cloud);
    color: var(--charcoal-script);
    padding: 0.3rem 1rem;
    border-radius: 999px;
    position: relative;
    z-index: 2;
    white-space: nowrap;
}

.hangul-badge--dark {
    background-color: var(--tangerine-pop);
    color: var(--cream-canvas);
}

/* --- Wave Dividers --- */
.wave-divider {
    position: relative;
    z-index: 1;
    background-color: var(--cream-canvas);
    overflow: hidden;
    line-height: 0;
}

.wave-divider svg {
    width: 100%;
    height: 60px;
}

.wave-divider--dark {
    background-color: var(--deep-night);
}

/* --- Breathing Spaces --- */
.breathing-space {
    min-height: 25vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
    padding: 4rem 2rem;
}

.breathing-text {
    font-family: var(--font-accent);
    font-weight: 400;
    font-size: clamp(1.3rem, 2.5vw, 1.8rem);
    color: var(--dusk-lavender);
    text-align: center;
    min-height: 1.5em;
}

.breathing-text--light {
    color: var(--blush-cloud);
}

/* --- Memphis Decorative Shapes --- */
.memphis-squiggle-wrap {
    position: absolute;
    pointer-events: none;
    z-index: 0;
}

.squiggle-pos-1 {
    top: 20%;
    right: 10%;
    animation: confettiSpin 20s linear infinite;
}

.squiggle-pos-2 {
    bottom: 25%;
    left: 8%;
    animation: confettiSpin 25s linear infinite reverse;
}

.memphis-circle-bite {
    position: absolute;
    pointer-events: none;
    z-index: 0;
}

.circle-bite-pos-1 {
    top: 15%;
    left: 15%;
    animation: confettiFloat 4s ease-in-out infinite;
}

.memphis-triangle-pair {
    position: absolute;
    pointer-events: none;
    z-index: 0;
}

.triangle-pair-pos-1 {
    top: 25%;
    right: 12%;
    animation: confettiFloat 5s ease-in-out infinite;
}

/* --- Content Clusters --- */
.content-cluster {
    padding: clamp(3rem, 8vh, 6rem) 2rem;
    position: relative;
    z-index: 1;
}

.cluster-inner {
    max-width: 1080px;
    margin: 0 auto;
    position: relative;
}

.cluster-offset-left {
    transform: translateX(-3%);
}

.cluster-offset-right {
    transform: translateX(3%);
}

.cluster-offset-center {
    transform: translateX(0);
}

/* --- Glassmorphic Cards --- */
.glass-card {
    background: rgba(255, 211, 194, 0.35);
    backdrop-filter: blur(16px) saturate(1.4);
    -webkit-backdrop-filter: blur(16px) saturate(1.4);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 1.5rem;
    padding: clamp(1.8rem, 3vw, 2.8rem);
    box-shadow: 0 8px 32px rgba(45, 27, 105, 0.12);
    position: relative;
    margin-bottom: 2rem;
    opacity: 0;
    transform: translateY(30px);
    transition: transform 350ms var(--bouncy-ease), box-shadow 350ms ease-out, opacity 600ms ease-out;
}

.glass-card.in-view {
    opacity: 1;
    transform: translateY(0);
}

.glass-card--dark {
    background: rgba(156, 137, 184, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

/* Card rotations */
.card-rotate-1 { --card-rotation: 1.8deg; }
.card-rotate-2 { --card-rotation: -2.2deg; }
.card-rotate-3 { --card-rotation: 2.5deg; }
.card-rotate-4 { --card-rotation: -1.5deg; }
.card-rotate-5 { --card-rotation: -2.8deg; }
.card-rotate-6 { --card-rotation: 1.2deg; }
.card-rotate-7 { --card-rotation: -1.8deg; }
.card-rotate-8 { --card-rotation: 2.3deg; }
.card-rotate-9 { --card-rotation: -2.6deg; }

.glass-card.in-view.card-rotate-1 { transform: rotate(1.8deg) translateY(0); }
.glass-card.in-view.card-rotate-2 { transform: rotate(-2.2deg) translateY(0); }
.glass-card.in-view.card-rotate-3 { transform: rotate(2.5deg) translateY(0); }
.glass-card.in-view.card-rotate-4 { transform: rotate(-1.5deg) translateY(0); }
.glass-card.in-view.card-rotate-5 { transform: rotate(-2.8deg) translateY(0); }
.glass-card.in-view.card-rotate-6 { transform: rotate(1.2deg) translateY(0); }
.glass-card.in-view.card-rotate-7 { transform: rotate(-1.8deg) translateY(0); }
.glass-card.in-view.card-rotate-8 { transform: rotate(2.3deg) translateY(0); }
.glass-card.in-view.card-rotate-9 { transform: rotate(-2.6deg) translateY(0); }

/* Card hover lift */
.glass-card:hover {
    box-shadow: 0 16px 48px rgba(45, 27, 105, 0.18);
}

.glass-card.in-view.card-rotate-1:hover { transform: rotate(1.8deg) translateY(-6px); }
.glass-card.in-view.card-rotate-2:hover { transform: rotate(-2.2deg) translateY(-6px); }
.glass-card.in-view.card-rotate-3:hover { transform: rotate(2.5deg) translateY(-6px); }
.glass-card.in-view.card-rotate-4:hover { transform: rotate(-1.5deg) translateY(-6px); }
.glass-card.in-view.card-rotate-5:hover { transform: rotate(-2.8deg) translateY(-6px); }
.glass-card.in-view.card-rotate-6:hover { transform: rotate(1.2deg) translateY(-6px); }
.glass-card.in-view.card-rotate-7:hover { transform: rotate(-1.8deg) translateY(-6px); }
.glass-card.in-view.card-rotate-8:hover { transform: rotate(2.3deg) translateY(-6px); }
.glass-card.in-view.card-rotate-9:hover { transform: rotate(-2.6deg) translateY(-6px); }

.glass-card h2 {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(1.6rem, 3.5vw, 2.8rem);
    letter-spacing: 0em;
    line-height: 1.25;
    color: var(--charcoal-script);
    margin-bottom: 1rem;
    min-height: 1.3em;
}

.glass-card--dark h2 {
    color: var(--cream-canvas);
}

.glass-card p {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: clamp(1rem, 1.8vw, 1.2rem);
    line-height: 1.72;
    color: var(--charcoal-script);
}

.glass-card--dark p {
    color: rgba(255, 245, 238, 0.9);
}

.glass-card .hangul-badge {
    position: absolute;
    top: -0.8rem;
    right: 1.5rem;
}

/* Staggered card entrance */
.glass-card:nth-child(1) { transition-delay: 0ms; }
.glass-card:nth-child(2) { transition-delay: 150ms; }
.glass-card:nth-child(3) { transition-delay: 300ms; }

/* Overlapping cards layout */
.cluster-inner .glass-card:nth-child(2) {
    margin-top: -1.5rem;
    margin-left: 3%;
}

.cluster-inner .glass-card:nth-child(3) {
    margin-top: -1rem;
    margin-left: -2%;
}

/* --- Neon Glow Effect (Pojangmacha) --- */
.section--indigo h2,
.section--terminal h2 {
    text-shadow: 0 0 20px rgba(255, 107, 107, 0.4), 0 0 40px rgba(255, 138, 101, 0.2);
}

/* --- Zigzag Bars --- */
.zigzag-bar {
    width: 120px;
    height: 16px;
    position: absolute;
    bottom: 10%;
    left: 5%;
    pointer-events: none;
}

.zigzag-bar::before {
    content: '';
    display: block;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        90deg,
        var(--deep-night) 0px,
        var(--deep-night) 10px,
        transparent 10px,
        transparent 12px
    );
    clip-path: polygon(
        0% 50%, 8% 0%, 16% 50%, 24% 0%, 32% 50%, 40% 0%, 48% 50%, 56% 0%, 64% 50%, 72% 0%, 80% 50%, 88% 0%, 96% 50%, 100% 0%, 100% 100%, 96% 50%, 88% 100%, 80% 50%, 72% 100%, 64% 50%, 56% 100%, 48% 50%, 40% 100%, 32% 50%, 24% 100%, 16% 50%, 8% 100%, 0% 50%
    );
}

.zigzag-bar--light::before {
    background: repeating-linear-gradient(
        90deg,
        var(--blush-cloud) 0px,
        var(--blush-cloud) 10px,
        transparent 10px,
        transparent 12px
    );
}

/* Dotted trails */
.dotted-trail {
    position: absolute;
    pointer-events: none;
}

.trail-1 {
    top: 50%;
    right: -2rem;
    width: 80px;
    height: 200px;
}

.trail-1::before {
    content: '';
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--sunset-coral);
    border-radius: 50%;
    box-shadow:
        0 30px 0 var(--sunset-coral),
        8px 60px 0 var(--sunset-coral),
        12px 90px 0 var(--sunset-coral),
        8px 120px 0 var(--sunset-coral),
        0 150px 0 var(--sunset-coral);
}

.trail-2 {
    top: 30%;
    left: -2rem;
    width: 80px;
    height: 200px;
}

.trail-2::before {
    content: '';
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--dusk-lavender);
    border-radius: 50%;
    box-shadow:
        -5px 30px 0 var(--dusk-lavender),
        -8px 60px 0 var(--dusk-lavender),
        -5px 90px 0 var(--dusk-lavender),
        0 120px 0 var(--dusk-lavender),
        5px 150px 0 var(--dusk-lavender);
}

/* --- Terminal Section --- */
.section--terminal {
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
}

.terminal-inner {
    text-align: center;
    max-width: 800px;
}

.terminal-headline {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: clamp(1.8rem, 4vw, 3.2rem);
    letter-spacing: -0.03em;
    line-height: 1.3;
    color: var(--cream-canvas);
    min-height: 2em;
}

.terminal-confetti {
    display: flex;
    gap: 3rem;
    justify-content: center;
    align-items: center;
    margin-top: 3rem;
}

.terminal-shape {
    opacity: 0.8;
}

.terminal-shape--spin {
    animation: confettiSpin 20s linear infinite;
}

/* --- Floating Navigation --- */
.floating-nav {
    position: fixed;
    bottom: 1.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    background: rgba(255, 138, 101, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 999px;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(45, 27, 105, 0.2);
    opacity: 0;
    transition: opacity 400ms ease-out;
}

.floating-nav.visible {
    opacity: 1;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 0;
    background: none;
    border: none;
    color: var(--cream-canvas);
    cursor: pointer;
    padding: 0.5rem 0.6rem;
    border-radius: 999px;
    transition: background 300ms ease-out, gap 300ms ease-out;
    overflow: hidden;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.85rem;
    white-space: nowrap;
}

.nav-btn:hover {
    background: rgba(45, 27, 105, 0.25);
    gap: 0.5rem;
}

.nav-btn svg {
    flex-shrink: 0;
}

.nav-label {
    display: inline-block;
    max-width: 0;
    overflow: hidden;
    transition: max-width 400ms var(--bouncy-ease);
    font-family: var(--font-body);
    font-weight: 600;
    color: var(--cream-canvas);
}

.nav-btn:hover .nav-label {
    max-width: 80px;
}

/* --- Responsive (Mobile) --- */
@media (max-width: 768px) {
    .hero-card {
        transform: rotate(1deg);
    }

    @keyframes heroCardIn {
        from {
            opacity: 0;
            transform: rotate(1deg) scale(0.92) translateY(30px);
        }
        to {
            opacity: 1;
            transform: rotate(1deg) scale(1) translateY(0);
        }
    }

    .cluster-offset-left,
    .cluster-offset-right {
        transform: translateX(0);
    }

    .glass-card.in-view.card-rotate-1 { transform: rotate(0.8deg) translateY(0); }
    .glass-card.in-view.card-rotate-2 { transform: rotate(-0.8deg) translateY(0); }
    .glass-card.in-view.card-rotate-3 { transform: rotate(1deg) translateY(0); }
    .glass-card.in-view.card-rotate-4 { transform: rotate(-0.6deg) translateY(0); }
    .glass-card.in-view.card-rotate-5 { transform: rotate(-1deg) translateY(0); }
    .glass-card.in-view.card-rotate-6 { transform: rotate(0.5deg) translateY(0); }
    .glass-card.in-view.card-rotate-7 { transform: rotate(-0.7deg) translateY(0); }
    .glass-card.in-view.card-rotate-8 { transform: rotate(0.9deg) translateY(0); }
    .glass-card.in-view.card-rotate-9 { transform: rotate(-1deg) translateY(0); }

    .glass-card.in-view.card-rotate-1:hover { transform: rotate(0.8deg) translateY(-6px); }
    .glass-card.in-view.card-rotate-2:hover { transform: rotate(-0.8deg) translateY(-6px); }
    .glass-card.in-view.card-rotate-3:hover { transform: rotate(1deg) translateY(-6px); }
    .glass-card.in-view.card-rotate-4:hover { transform: rotate(-0.6deg) translateY(-6px); }
    .glass-card.in-view.card-rotate-5:hover { transform: rotate(-1deg) translateY(-6px); }
    .glass-card.in-view.card-rotate-6:hover { transform: rotate(0.5deg) translateY(-6px); }
    .glass-card.in-view.card-rotate-7:hover { transform: rotate(-0.7deg) translateY(-6px); }
    .glass-card.in-view.card-rotate-8:hover { transform: rotate(0.9deg) translateY(-6px); }
    .glass-card.in-view.card-rotate-9:hover { transform: rotate(-1deg) translateY(-6px); }

    .cluster-inner .glass-card:nth-child(2) {
        margin-left: 0;
    }

    .cluster-inner .glass-card:nth-child(3) {
        margin-left: 0;
    }

    .breathing-space {
        min-height: 15vh;
    }

    .content-cluster {
        padding: 2rem 1rem;
    }

    .floating-nav {
        left: 1rem;
        right: 1rem;
        transform: none;
        width: auto;
        justify-content: center;
        bottom: 0;
        border-radius: 999px 999px 0 0;
        padding-bottom: calc(0.6rem + env(safe-area-inset-bottom, 0px));
    }

    .dotted-trail {
        display: none;
    }

    .hero-badge {
        top: 5%;
        right: 5%;
    }

    .memphis-squiggle-wrap,
    .memphis-circle-bite,
    .memphis-triangle-pair {
        display: none;
    }
}

@media (max-width: 480px) {
    #hero-headline {
        font-size: clamp(2rem, 8vw, 3rem);
    }

    .terminal-headline {
        font-size: clamp(1.4rem, 5vw, 2rem);
    }

    .glass-card {
        padding: 1.5rem;
    }

    .breathing-text {
        font-size: clamp(1.1rem, 4vw, 1.4rem);
    }
}

/* --- Utility: hide elements before JS initializes --- */
.js-hidden {
    opacity: 0;
}