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

:root {
    --void: #0d0a0b;
    --deep-wine: #4a1526;
    --blood-vine: #8b2242;
    --rose-copper: #c4616e;
    --pale-petal: #e8c4c8;
    --bone-white: #f2ece6;
    --verdigris: #1a4a3a;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--void);
    color: var(--pale-petal);
    font-family: 'Commissioner', sans-serif;
    font-weight: 300;
    font-size: clamp(1rem, 1.3vw, 1.2rem);
    line-height: 1.75;
    overflow-x: hidden;
}

/* Progress Bar */
.progress-bar {
    position: fixed;
    top: 0;
    right: 0;
    width: 2px;
    height: 0%;
    background: linear-gradient(to bottom, var(--blood-vine), var(--rose-copper));
    z-index: 1000;
    transition: height 0.1s linear;
}

/* Particle Field */
.particle-field {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
}

/* Zones */
.zone {
    position: relative;
    min-height: 100vh;
    z-index: 1;
}

/* Watermark Glyphs */
.watermark-glyph {
    position: absolute;
    font-family: 'Commissioner', sans-serif;
    font-weight: 100;
    font-size: clamp(5rem, 12vw, 10rem);
    color: var(--blood-vine);
    opacity: 0.05;
    pointer-events: none;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 0;
}

/* Zone 1 — Germination */
.zone-1 {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 10vh 5vw;
}

.zone-1-content {
    position: relative;
    width: 100%;
}

.title-conc {
    font-weight: 200;
    font-size: clamp(3.5rem, 7vw, 6rem);
    color: var(--bone-white);
    letter-spacing: 0.08em;
    margin-left: 15%;
    opacity: 0;
    transition: opacity 1200ms cubic-bezier(0.16, 1, 0.3, 1);
}

.title-conc.visible {
    opacity: 1;
}

.title-line {
    height: 1px;
    background: var(--blood-vine);
    margin-left: 15%;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 2000ms cubic-bezier(0.16, 1, 0.3, 1);
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
}

.title-line.visible {
    transform: scaleX(1);
}

.title-engine {
    font-weight: 200;
    font-size: clamp(3.5rem, 7vw, 6rem);
    color: var(--bone-white);
    letter-spacing: 0.08em;
    margin-left: 55%;
    opacity: 0;
    transition: opacity 1200ms cubic-bezier(0.16, 1, 0.3, 1);
}

.title-engine.visible {
    opacity: 1;
}

.descriptor {
    font-weight: 300;
    font-size: clamp(1rem, 1.5vw, 1.3rem);
    color: var(--pale-petal);
    margin-left: 40%;
    margin-top: 2rem;
    opacity: 0;
    transition: opacity 1200ms cubic-bezier(0.16, 1, 0.3, 1);
}

.descriptor.visible {
    opacity: 1;
}

/* Zone 2 — Root System */
.zone-2 {
    min-height: 120vh;
    position: relative;
    padding: 10vh 5vw;
}

.connector-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.concept-block {
    position: relative;
    max-width: 420px;
    padding: 2rem;
    border-left: 2px solid var(--deep-wine);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 800ms ease, transform 800ms ease;
    z-index: 1;
}

.concept-block.revealed {
    opacity: 1;
    transform: translateY(0);
}

.concept-block h2 {
    font-weight: 200;
    font-size: 1.8rem;
    color: var(--bone-white);
    letter-spacing: 0.08em;
    margin-bottom: 0.75rem;
}

.concept-block p {
    font-weight: 300;
    font-size: 1.05rem;
    line-height: 1.75;
    color: var(--pale-petal);
}

.concept-block-1 {
    margin-left: 60%;
    margin-top: 5vh;
}

.concept-block-2 {
    margin-left: 35%;
    margin-top: 20vh;
}

.concept-block-3 {
    margin-left: 10%;
    margin-top: 20vh;
}

/* Zone 3 — Canopy */
.zone-3 {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10vh 10vw;
}

.canopy-statement {
    font-weight: 100;
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    color: var(--bone-white);
    text-align: center;
    line-height: 1.3;
    mix-blend-mode: difference;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1000ms ease, transform 1000ms ease;
}

.canopy-statement.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Zone 4 — Fruiting */
.zone-4 {
    min-height: 130vh;
    position: relative;
    padding: 10vh 5vw;
}

.constellation-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.constellation-lines path {
    animation: pulseOpacity 4s ease-in-out infinite;
}

@keyframes pulseOpacity {
    0%, 100% { opacity: 0.2; }
    50% { opacity: 0.5; }
}

.icon-node {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    opacity: 0;
    transform: scale(0.3);
    transition: opacity 600ms ease, transform 600ms ease;
    z-index: 1;
    cursor: default;
}

.icon-node.revealed {
    opacity: 1;
    transform: scale(1);
}

.node-icon {
    width: 56px;
    height: 56px;
}

.icon-label {
    font-weight: 500;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--rose-copper);
}

/* Ripple effect */
.icon-node::after {
    content: '';
    position: absolute;
    top: 28px;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: var(--blood-vine);
    opacity: 0;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.icon-node.ripple::after {
    animation: rippleExpand 800ms ease-out forwards;
}

@keyframes rippleExpand {
    0% {
        width: 0;
        height: 0;
        opacity: 0.3;
    }
    100% {
        width: 240px;
        height: 240px;
        opacity: 0;
    }
}

/* Zone 5 — Mycorrhiza */
.zone-5 {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 10vh 5vw;
}

.closing-statement {
    font-weight: 200;
    font-size: clamp(2rem, 4vw, 3.5rem);
    color: var(--bone-white);
    text-align: center;
    letter-spacing: 0.08em;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1000ms ease, transform 1000ms ease;
}

.closing-statement.revealed {
    opacity: 1;
    transform: translateY(0);
}

.domain-whisper {
    margin-top: 30vh;
    font-weight: 100;
    font-size: 0.9rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--pale-petal);
    opacity: 0.4;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .particle-field {
        display: none;
    }
    .title-conc, .title-engine, .descriptor, .title-line,
    .concept-block, .canopy-statement, .icon-node, .closing-statement {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }
    .title-line {
        transform: scaleX(1) !important;
    }
}