/* ===== BASE RESET & NOISE ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    background: #050510;
    color: #d4d4e0;
    overflow-x: hidden;
    font-family: 'Cormorant Garamond', serif;
}

/* Noise grain overlay */
body::before {
    content: '';
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-image: url("data:image/png;base64,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");
    background-repeat: repeat;
    background-size: 100px 100px;
    opacity: 0.04;
    mix-blend-mode: overlay;
    pointer-events: none;
    z-index: 9998;
}

/* Scanline overlay */
body::after {
    content: '';
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: repeating-linear-gradient(
        0deg,
        transparent 0px,
        transparent 2px,
        rgba(0,0,0,0.15) 2px,
        rgba(0,0,0,0.15) 4px
    );
    pointer-events: none;
    z-index: 9999;
}

/* ===== SCROLL PROGRESS ===== */
#scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 2px;
    height: 0%;
    background: #00FFFF;
    box-shadow: 0 0 10px #00FFFF, 0 0 20px #00FFFF88;
    z-index: 10000;
    transition: height 0.1s linear;
}

/* ===== SECTIONS ===== */
.section {
    position: relative;
    width: 100%;
    contain: layout style;
}

/* ===== ROOT SYSTEM ===== */
#roots {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #050510;
    overflow: hidden;
}

.hero-text {
    position: relative;
    font-family: 'Noto Sans KR', sans-serif;
    font-weight: 900;
    font-size: clamp(12rem, 25vw, 30rem);
    line-height: 1;
    z-index: 20;
}

.hero-base {
    position: relative;
    color: transparent;
}

.glitch-layer {
    position: absolute;
    top: 0; left: 0;
    mix-blend-mode: screen;
    will-change: transform;
}

.glitch-r {
    color: #FF006E;
    transform: translate(3px, 1px);
    animation: glitch-shift-r 4s infinite step-end;
}

.glitch-g {
    color: #39FF14;
    transform: translate(0, 0);
    animation: glitch-shift-g 4s infinite step-end;
}

.glitch-b {
    color: #00FFFF;
    transform: translate(-2px, -1px);
    animation: glitch-shift-b 4s infinite step-end;
}

/* Shimmer loading effect on hero */
.hero-text::after {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.06), transparent);
    animation: hero-shimmer 3s infinite;
    z-index: 25;
    pointer-events: none;
}

@keyframes hero-shimmer {
    0% { left: -100%; }
    100% { left: 200%; }
}

@keyframes glitch-shift-r {
    0%, 92% { transform: translate(3px, 1px); }
    93% { transform: translate(-2px, -1px); }
    94% { transform: translate(4px, 2px); }
    95% { transform: translate(-1px, -2px); }
    96%, 100% { transform: translate(3px, 1px); }
}

@keyframes glitch-shift-g {
    0%, 90% { transform: translate(0, 0); }
    91% { transform: translate(2px, -1px); }
    92% { transform: translate(-3px, 1px); }
    93% { transform: translate(1px, 2px); }
    94%, 100% { transform: translate(0, 0); }
}

@keyframes glitch-shift-b {
    0%, 94% { transform: translate(-2px, -1px); }
    95% { transform: translate(3px, 0); }
    96% { transform: translate(-1px, 2px); }
    97% { transform: translate(2px, -2px); }
    98%, 100% { transform: translate(-2px, -1px); }
}

/* Root tendrils */
#root-tendrils {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, 0);
    width: 100%;
    height: 50vh;
    z-index: 10;
    pointer-events: none;
}

.tendril {
    position: absolute;
    top: 0;
    left: 50%;
    width: 1px;
    background: #00FFFF;
    box-shadow: 0 0 4px #00FFFF88;
    transform-origin: top center;
    will-change: transform;
    clip-path: inset(100% 0 0 0);
    transition: clip-path 2s ease-out;
}

.tendril.visible {
    clip-path: inset(0 0 0 0);
}

/* ===== TRUNK PASSAGE ===== */
#trunk {
    min-height: 200vh;
    position: relative;
    padding: 10vh 0;
}

.tree-rings {
    position: sticky;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    z-index: 5;
    pointer-events: none;
}

.ring {
    position: absolute;
    border-radius: 50%;
    border: 1px solid rgba(255, 0, 110, 0.15);
    transform: translate(-50%, -50%);
    animation: ring-pulse 6s ease-in-out infinite;
}

.ring-1 { width: 100px; height: 100px; opacity: 0.2; animation-delay: 0s; }
.ring-2 { width: 200px; height: 200px; opacity: 0.15; animation-delay: 0.5s; }
.ring-3 { width: 350px; height: 350px; opacity: 0.1; animation-delay: 1s; }
.ring-4 { width: 500px; height: 500px; opacity: 0.07; animation-delay: 1.5s; }
.ring-5 { width: 600px; height: 600px; opacity: 0.05; animation-delay: 2s; }

@keyframes ring-pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(0.98); }
    50% { transform: translate(-50%, -50%) scale(1.02); }
}

.trunk-panel {
    position: sticky;
    top: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 clamp(1.5rem, 4vw, 4rem);
    z-index: 20;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.trunk-panel.visible {
    opacity: 1;
    transform: translateY(0);
}

.trunk-panel.glitch-panel::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    mix-blend-mode: difference;
    background: rgba(255, 255, 255, 0.03);
    pointer-events: none;
}

.poetic-text {
    font-family: 'Cormorant Garamond', serif;
    font-style: italic;
    font-weight: 400;
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    line-height: 1.8;
    color: #d4d4e0;
    backdrop-filter: blur(8px);
    background: rgba(5, 5, 16, 0.7);
    padding: 3rem;
    box-shadow: 0 0 40px rgba(0, 255, 255, 0.1);
}

/* ===== CAMBIUM LAYER ===== */
#cambium {
    min-height: 150vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 10vh 0;
    position: relative;
}

.cambium-label {
    font-family: 'IBM Plex Mono', monospace;
    font-weight: 300;
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: #666680;
    margin-bottom: 4rem;
}

.skeleton-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    width: 100%;
    max-width: 900px;
    padding: 0 2rem;
}

.skeleton-block {
    height: 180px;
    border-radius: 4px;
    background: linear-gradient(90deg, #2a2a3e 25%, #3a3a5e 37%, #2a2a3e 63%);
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s ease-in-out infinite, skeleton-corrupt 8s ease-in-out infinite;
    animation-delay: var(--delay), calc(var(--delay) + 3s);
    will-change: transform, background;
}

@keyframes skeleton-shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

@keyframes skeleton-corrupt {
    0%, 30% {
        transform: skewX(0deg);
        background: linear-gradient(90deg, #2a2a3e 25%, #3a3a5e 37%, #2a2a3e 63%);
    }
    50% {
        transform: skewX(var(--skew));
        background: linear-gradient(90deg, #2a2a3e 25%, #39FF1455 37%, #2a2a3e 63%);
    }
    70% {
        transform: skewX(calc(var(--skew) * -0.5));
        background: linear-gradient(90deg, #2a2a3e 25%, #FF006E55 37%, #2a2a3e 63%);
    }
    100% {
        transform: skewX(0deg);
        background: linear-gradient(90deg, #2a2a3e 25%, #3a3a5e 37%, #2a2a3e 63%);
    }
}

.cambium-bleed-text {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4rem;
    pointer-events: none;
    z-index: 25;
    opacity: 0;
    transition: opacity 2s ease;
}

#cambium.active .cambium-bleed-text {
    opacity: 0.6;
}

.cambium-bleed-text span {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 300;
    font-size: clamp(2rem, 5vw, 4rem);
    color: #FF006E;
    text-shadow: 0 0 10px #FF006E88;
    mix-blend-mode: screen;
}

/* ===== CANOPY EXPLOSION ===== */
#canopy {
    min-height: 200vh;
    position: relative;
    overflow: hidden;
}

#leaf-container {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 30;
    pointer-events: none;
    opacity: 0;
    transition: opacity 1s ease;
}

body.canopy-active #leaf-container {
    opacity: 1;
}

.leaf {
    position: absolute;
    border-radius: 60% 40% 50% 70%;
    will-change: transform;
    animation: leaf-float var(--dur) linear infinite, leaf-sway var(--sway-dur) ease-in-out infinite;
    animation-delay: var(--del), var(--del);
}

@keyframes leaf-float {
    0% { transform: translateY(100vh) translateX(0); }
    100% { transform: translateY(-50px) translateX(0); }
}

@keyframes leaf-sway {
    0%, 100% { margin-left: 0; }
    25% { margin-left: 20px; }
    75% { margin-left: -20px; }
}

.canopy-words {
    position: relative;
    z-index: 20;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-around;
    min-height: 200vh;
    padding: 10vh 0;
}

.canopy-word {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(3rem, 8vw, 7rem);
    text-transform: uppercase;
    text-shadow: 0 0 30px currentColor, 0 0 60px currentColor;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.canopy-word.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== CROWN / SKY ===== */
#crown {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(to bottom, #050510, #0a0a2e);
}

.crown-content {
    text-align: center;
    opacity: 0;
    transition: opacity 3s ease;
}

.crown-content.visible {
    opacity: 1;
}

.crown-character {
    font-family: 'Cormorant Garamond', serif;
    font-weight: 400;
    font-size: clamp(15rem, 30vw, 40rem);
    line-height: 1;
    color: #e0e0f0;
    text-shadow: 0 0 40px rgba(224, 224, 240, 0.3), 0 0 80px rgba(224, 224, 240, 0.15);
}

.crown-brand {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1rem;
    letter-spacing: 0.5em;
    color: #d4d4e0;
    opacity: 0.5;
    margin-top: 2rem;
}

/* ===== GLITCH INTERMITTENT ===== */
@keyframes text-corrupt {
    0%, 100% { transform: skewX(0) translateX(0); }
    25% { transform: skewX(5deg) translateX(10px); }
    50% { transform: skewX(-3deg) translateX(-5px); }
}

.glitch-active {
    animation: text-corrupt 0.15s ease-in-out;
}

/* Color references: #00FF41, #76FF03, #FF2D87 used in JS leaf particles */
.leaf-color-ref {
    color: #00FF41;
    color: #76FF03;
    color: #FF2D87;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .skeleton-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .skeleton-block {
        height: 120px;
    }
}