/* ============================================
   가능성.com — Holographic Prismatism
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
    --void-base: #0B0B1A;
    --deep-space: #12122B;
    --prism-violet: #7B2FBE;
    --prism-indigo: #4361EE;
    --prism-cyan: #00D4FF;
    --prism-green: #2EE59D;
    --prism-amber: #FFB627;
    --prism-rose: #FF006E;
    --convergence-white: #F8F8FF;
    --ghost-text: #9898B8;

    --font-display: 'Noto Serif KR', serif;
    --font-secondary: 'Syne', sans-serif;
    --font-body: 'Commissioner', sans-serif;

    --spring-ease: cubic-bezier(0.16, 1, 0.3, 1);
    --prismatic-gradient: linear-gradient(135deg, #7B2FBE, #4361EE, #00D4FF);
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    background: var(--void-base);
    color: var(--convergence-white);
    font-family: var(--font-body);
    font-weight: 300;
    line-height: 1.75;
    overflow-x: hidden;
}

/* ---------- Chamber Base ---------- */
.chamber {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* ============================================
   CHAMBER 1 — Hero Character Reveal
   ============================================ */
.chamber-hero {
    background: var(--void-base);
    flex-direction: column;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero-characters {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2vw;
}

.hero-char {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 25vw;
    line-height: 1;
    color: var(--convergence-white);
    filter: blur(30px);
    opacity: 0.6;
    transition: filter 800ms var(--spring-ease), opacity 800ms var(--spring-ease);
    text-shadow:
        -3px 0 0 var(--prism-rose),
        3px 0 0 var(--prism-cyan),
        0 3px 0 var(--prism-green);
    will-change: filter, opacity;
}

.hero-char.revealed {
    filter: blur(0px);
    opacity: 1;
}

.hero-subtitle {
    font-family: var(--font-secondary);
    font-weight: 800;
    font-size: 2vw;
    letter-spacing: 0.3em;
    color: var(--convergence-white);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 800ms var(--spring-ease) 1200ms, transform 800ms var(--spring-ease) 1200ms;
}

.hero-subtitle.visible {
    opacity: 0.4;
    transform: translateY(0);
}

/* Prismatic edge lights bleeding from margins */
.prism-edge-left {
    position: absolute;
    left: -5vw;
    top: 20%;
    width: 15vw;
    height: 60%;
    background: radial-gradient(ellipse at center, rgba(123, 47, 190, 0.3), transparent 70%);
    filter: blur(60px);
    pointer-events: none;
}

.prism-edge-right {
    position: absolute;
    right: -5vw;
    top: 30%;
    width: 15vw;
    height: 50%;
    background: radial-gradient(ellipse at center, rgba(0, 212, 255, 0.25), transparent 70%);
    filter: blur(60px);
    pointer-events: none;
}

/* ============================================
   CHAMBER 2 — Diagonal Split
   ============================================ */
.chamber-split {
    background: var(--void-base);
}

.split-void {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--void-base);
    clip-path: polygon(0 0, var(--split-right, 65%) 0, var(--split-left, 35%) 100%, 0 100%);
    z-index: 1;
    transition: clip-path 0.1s linear;
}

.split-spectrum {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--deep-space);
    clip-path: polygon(var(--split-right, 65%) 0, 100% 0, 100% 100%, var(--split-left, 35%) 100%);
    z-index: 1;
    transition: clip-path 0.1s linear;
}

.spectrum-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    pointer-events: none;
}

.spectrum-orb-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(67, 97, 238, 0.5), transparent 70%);
    top: 10%;
    right: 5%;
}

.spectrum-orb-2 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(123, 47, 190, 0.4), transparent 70%);
    bottom: 15%;
    right: 15%;
}

.split-seam-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(-20deg);
    z-index: 3;
    text-align: center;
    white-space: nowrap;
}

.seam-line {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 800ms var(--spring-ease), transform 800ms var(--spring-ease);
}

.seam-line.visible {
    opacity: 1;
    transform: translateY(0);
}

.seam-line-1 {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 4vw;
    color: var(--convergence-white);
    text-shadow:
        -2px 0 0 var(--prism-rose),
        2px 0 0 var(--prism-cyan);
    margin-bottom: 1rem;
    transition-delay: 0ms;
}

.seam-line-2 {
    font-family: var(--font-secondary);
    font-weight: 400;
    font-size: 1.5vw;
    letter-spacing: 0.12em;
    color: var(--ghost-text);
    text-transform: uppercase;
    transition-delay: 300ms;
}

/* Prism icon */
.prism-icon {
    position: absolute;
    width: 40px;
    height: 40px;
    animation: prism-rotate 12s linear infinite;
    z-index: 4;
}

.prism-icon-split {
    bottom: 5vh;
    left: 50%;
    transform: translateX(-50%);
}

@keyframes prism-rotate {
    from { transform: translateX(-50%) rotate(0deg); }
    to { transform: translateX(-50%) rotate(360deg); }
}

/* ============================================
   CHAMBER 3 — Glassmorphic Gallery
   ============================================ */
.chamber-gallery {
    background: var(--void-base);
    flex-direction: column;
    padding: 8vh 0;
}

.gallery-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 8vw;
    color: var(--convergence-white);
    text-shadow:
        -2px 0 0 var(--prism-rose),
        2px 0 0 var(--prism-cyan),
        0 2px 0 var(--prism-green);
    margin-bottom: 0.5rem;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 800ms var(--spring-ease), transform 800ms var(--spring-ease);
}

.gallery-title.visible {
    opacity: 1;
    transform: translateY(0);
}

.gallery-label {
    font-family: var(--font-secondary);
    font-weight: 800;
    font-size: 1rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ghost-text);
    margin-bottom: 6vh;
    opacity: 0;
    transition: opacity 600ms var(--spring-ease) 300ms;
}

.gallery-label.visible {
    opacity: 1;
}

.gallery-scroll {
    display: flex;
    gap: 3vw;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding: 4vh 15vw;
    width: 100%;
    position: relative;
    z-index: 2;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.gallery-scroll::-webkit-scrollbar {
    display: none;
}

.gallery-card {
    flex: 0 0 70vw;
    scroll-snap-align: center;
    background: rgba(11, 11, 26, 0.4);
    backdrop-filter: blur(20px) saturate(1.8);
    -webkit-backdrop-filter: blur(20px) saturate(1.8);
    border: 1px solid rgba(248, 248, 255, 0.08);
    border-radius: 16px;
    overflow: hidden;
    position: relative;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 800ms var(--spring-ease), transform 800ms var(--spring-ease);
}

.gallery-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.card-accent {
    height: 4px;
    width: 100%;
}

.card-body {
    padding: 3rem 3rem 1.5rem;
}

.card-text {
    font-family: var(--font-body);
    font-weight: 300;
    font-size: 1.25rem;
    line-height: 1.75;
    color: var(--convergence-white);
    margin-bottom: 1.5rem;
}

.card-label {
    font-family: var(--font-secondary);
    font-weight: 800;
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--ghost-text);
}

.card-svg {
    width: 100%;
    height: 120px;
    padding: 1rem 2rem 2rem;
}

.svg-line {
    stroke-dasharray: 500;
    stroke-dashoffset: 500;
    transition: stroke-dashoffset 1200ms var(--spring-ease);
}

.gallery-card.visible .svg-line {
    stroke-dashoffset: 0;
}

/* Background gradient orbs */
.gallery-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    pointer-events: none;
    z-index: 0;
}

.gallery-orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.2), transparent 70%);
    top: 10%;
    left: 5%;
}

.gallery-orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(46, 229, 157, 0.15), transparent 70%);
    bottom: 10%;
    right: 10%;
}

.gallery-orb-3 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(255, 182, 39, 0.15), transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* ============================================
   CHAMBER 4 — Convergence
   ============================================ */
.chamber-convergence {
    background: var(--void-base);
    transition: background-color 600ms var(--spring-ease);
}

.chamber-convergence.active {
    background: var(--convergence-white);
}

.convergence-text {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 4vw;
    color: var(--void-base);
    opacity: 0;
    transition: opacity 1000ms var(--spring-ease);
    text-align: center;
    max-width: 80vw;
}

.chamber-convergence.active .convergence-text {
    opacity: 1;
}

/* ============================================
   CHAMBER 5 — Coda
   ============================================ */
.chamber-coda {
    background: var(--void-base);
    flex-direction: column;
    gap: 4vh;
}

.coda-flare {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(67, 97, 238, 0.3), rgba(123, 47, 190, 0.15), transparent 70%);
    filter: blur(60px);
    animation: flare-pulse 4s ease-in-out infinite alternate;
    pointer-events: none;
    z-index: 0;
}

@keyframes flare-pulse {
    0% { opacity: 0.2; }
    100% { opacity: 0.4; }
}

.coda-domain {
    font-family: var(--font-secondary);
    font-weight: 800;
    font-size: 6vw;
    background: var(--prismatic-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: coda-rotate 6s ease-in-out infinite alternate;
    position: relative;
    z-index: 1;
    text-shadow: none;
}

@keyframes coda-rotate {
    0% { transform: perspective(800px) rotateY(-8deg); }
    100% { transform: perspective(800px) rotateY(8deg); }
}

.prism-icon-coda {
    position: relative;
    bottom: auto;
    left: auto;
    transform: none;
    animation: prism-rotate-coda 12s linear infinite;
}

@keyframes prism-rotate-coda {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ============================================
   Chromatic Aberration Utility
   ============================================ */
.chromatic-aberration {
    text-shadow:
        -2px 0 0 var(--prism-rose),
        2px 0 0 var(--prism-cyan),
        0 2px 0 var(--prism-green);
}

/* ============================================
   Responsive Adjustments
   ============================================ */
@media (max-width: 768px) {
    .hero-char {
        font-size: 30vw;
    }

    .hero-subtitle {
        font-size: 3.5vw;
    }

    .seam-line-1 {
        font-size: 6vw;
    }

    .seam-line-2 {
        font-size: 2.5vw;
    }

    .gallery-title {
        font-size: 12vw;
    }

    .gallery-card {
        flex: 0 0 85vw;
    }

    .gallery-scroll {
        padding: 4vh 7.5vw;
    }

    .convergence-text {
        font-size: 6vw;
    }

    .coda-domain {
        font-size: 10vw;
    }

    .card-body {
        padding: 2rem 2rem 1rem;
    }

    .card-text {
        font-size: 1rem;
    }

    .coda-flare {
        width: 300px;
        height: 300px;
    }

    .split-seam-text {
        transform: translate(-50%, -50%) rotate(-20deg) scale(0.8);
    }
}

@media (max-width: 480px) {
    .hero-characters {
        gap: 1vw;
    }

    .hero-char {
        font-size: 28vw;
    }

    .gallery-label {
        font-size: 0.75rem;
    }

    .card-body {
        padding: 1.5rem 1.5rem 0.75rem;
    }
}