/* xity.quest — surrealist dreamworld */
/*
 * Implementation notes: this stylesheet uses IntersectionObserver in script.js
 * to update --depth-progress on sentinel elements distributed throughout the
 * content. The effect creates the sensation of descending deeper into a dream.
 */

:root {
    --deep-wine: #2a0a14;
    --burgundy: #5c1a2a;
    --dusky-rose: #8a4a5a;
    --cream-petal: #f0e6dc;
    --mist-rose: #c9a0aa;
    --blush-gold: #d4a870;
    --void-black: #0a0408;

    --depth-progress: 0;

    --space: 'Alegreya', 'Inter', serif;
    --inter: 'Alegreya Sans', 'Inter', sans-serif;
}

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

html, body {
    min-height: 100%;
    background: var(--void-black);
    color: var(--cream-petal);
    font-family: var(--inter);
    font-weight: 400;
    font-size: 1.05rem;
    line-height: 1.8;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

body {
    position: relative;
    min-height: 500vh;
}

/* ---------- Sky gradient (far background) ---------- */
.sky-gradient {
    position: fixed;
    inset: 0;
    z-index: -3;
    background:
        radial-gradient(
            ellipse at 50% calc(20% + var(--depth-progress) * 60%),
            var(--burgundy) 0%,
            var(--deep-wine) 40%,
            var(--void-black) 85%
        );
    transition: background 1.2s ease-out;
}

.sky-gradient::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        linear-gradient(
            180deg,
            rgba(92, 26, 42, 0.35) 0%,
            rgba(42, 10, 20, 0.25) 40%,
            rgba(10, 4, 8, 0.5) 100%
        );
    mix-blend-mode: multiply;
}

/* Opening bloom overlay */
.bloom-overlay {
    position: fixed;
    inset: 0;
    z-index: 10;
    background: var(--void-black);
    pointer-events: none;
    animation: bloom-open 3.2s ease-out forwards;
}

@keyframes bloom-open {
    0% {
        opacity: 1;
        background: radial-gradient(circle at 50% 50%, var(--void-black) 0%, var(--void-black) 100%);
    }
    50% {
        opacity: 0.75;
        background: radial-gradient(circle at 50% 50%, transparent 10%, var(--deep-wine) 50%, var(--void-black) 100%);
    }
    100% {
        opacity: 0;
        background: radial-gradient(circle at 50% 50%, transparent 60%, var(--burgundy) 90%, var(--void-black) 100%);
    }
}

/* ---------- Midground: nature silhouettes ---------- */
.midground {
    position: fixed;
    inset: 0;
    z-index: -2;
    pointer-events: none;
    overflow: hidden;
}

.nature-silhouette {
    position: absolute;
    color: var(--dusky-rose);
    filter: drop-shadow(0 0 12px rgba(138, 74, 90, 0.2));
    will-change: transform;
}

.leaves-cluster-1 {
    top: 8vh;
    left: 4vw;
    width: 22vw;
    max-width: 280px;
    opacity: 0.22;
    animation: sway 11s ease-in-out infinite;
}

.roots-1 {
    top: -5vh;
    right: 6vw;
    width: 28vw;
    max-width: 340px;
    height: 70vh;
    opacity: 0.28;
    color: var(--cream-petal);
    animation: sway-slow 14s ease-in-out infinite;
}

.cloud-1 {
    top: 55vh;
    left: -5vw;
    width: 60vw;
    max-width: 680px;
    opacity: 0.18;
    color: var(--mist-rose);
    animation: drift 18s ease-in-out infinite;
}

.branch-1 {
    top: 130vh;
    right: -6vw;
    width: 40vw;
    max-width: 420px;
    opacity: 0.25;
    color: var(--cream-petal);
    animation: sway 13s ease-in-out infinite reverse;
}

.water-1 {
    top: 200vh;
    left: 10vw;
    width: 80vw;
    max-width: 900px;
    opacity: 0.18;
    color: var(--blush-gold);
    animation: wave 9s ease-in-out infinite;
}

.leaves-cluster-2 {
    top: 280vh;
    right: 8vw;
    width: 20vw;
    max-width: 240px;
    opacity: 0.2;
    color: var(--dusky-rose);
    animation: sway 10s ease-in-out infinite;
}

@keyframes sway {
    0%, 100% { transform: translateX(0) rotate(0deg); }
    50% { transform: translateX(20px) rotate(1.5deg); }
}

@keyframes sway-slow {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(-18px); }
}

@keyframes drift {
    0%, 100% { transform: translateX(0) translateY(0); }
    50% { transform: translateX(30px) translateY(-8px); }
}

@keyframes wave {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(22px); }
}

/* Root stroke animation */
.root-stroke {
    stroke-dasharray: 800;
    stroke-dashoffset: 800;
    transition: stroke-dashoffset 2.2s ease-out;
}

.roots-1.grown .root-stroke {
    stroke-dashoffset: 0;
}

/* ---------- Particles ---------- */
.particles {
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    overflow: hidden;
}

.particle {
    position: absolute;
    border-radius: 50%;
    pointer-events: none;
    will-change: transform, opacity;
}

.particle.gold {
    background: radial-gradient(circle, var(--blush-gold) 0%, rgba(212, 168, 112, 0) 70%);
    box-shadow: 0 0 8px rgba(212, 168, 112, 0.5);
}

.particle.rose {
    background: radial-gradient(circle, var(--mist-rose) 0%, rgba(201, 160, 170, 0) 70%);
    box-shadow: 0 0 6px rgba(201, 160, 170, 0.4);
}

@keyframes rise {
    0% {
        transform: translate3d(var(--dx, 0), 0, 0);
        opacity: 0;
    }
    10% {
        opacity: var(--op, 0.4);
    }
    90% {
        opacity: var(--op, 0.4);
    }
    100% {
        transform: translate3d(calc(var(--dx, 0) + var(--drift, 0px)), -110vh, 0);
        opacity: 0;
    }
}

.particle.constellation {
    animation-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0 14px var(--blush-gold), 0 0 22px rgba(212, 168, 112, 0.6);
}

/* ---------- Infinite canvas layout ---------- */
.infinite-canvas {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr;
    padding: 20vh 0 30vh;
    gap: 0;
}

.scroll-sentinel {
    width: 1px;
    height: 1px;
    pointer-events: none;
    grid-column: 1 / -1;
}

/* ---------- Content islands ---------- */
.island {
    position: relative;
    padding: 6vh 5vw;
    color: var(--cream-petal);
    opacity: 0.5;
    transform: scale(0.97);
    transition: opacity 1.2s ease-in-out, transform 1.2s ease-in-out;
    -webkit-mask-image: radial-gradient(
        ellipse 90% 90% at center,
        #000 30%,
        rgba(0, 0, 0, 0.85) 55%,
        rgba(0, 0, 0, 0.35) 80%,
        transparent 100%
    );
    mask-image: radial-gradient(
        ellipse 90% 90% at center,
        #000 30%,
        rgba(0, 0, 0, 0.85) 55%,
        rgba(0, 0, 0, 0.35) 80%,
        transparent 100%
    );
    background:
        radial-gradient(
            ellipse at center,
            rgba(42, 10, 20, 0.55) 0%,
            rgba(42, 10, 20, 0.25) 60%,
            transparent 100%
        );
    margin: 15vh 0;
}

.island:hover {
    -webkit-mask-image: radial-gradient(
        ellipse 100% 100% at center,
        #000 50%,
        rgba(0, 0, 0, 0.9) 75%,
        rgba(0, 0, 0, 0.4) 95%,
        transparent 100%
    );
    mask-image: radial-gradient(
        ellipse 100% 100% at center,
        #000 50%,
        rgba(0, 0, 0, 0.9) 75%,
        rgba(0, 0, 0, 0.4) 95%,
        transparent 100%
    );
}

.island.visible {
    animation: heartbeat 1.6s ease-in-out forwards;
}

@keyframes heartbeat {
    0% {
        opacity: 0.5;
        transform: scale(0.97);
    }
    40% {
        opacity: 1;
        transform: scale(1);
    }
    55% {
        opacity: 0.85;
        transform: scale(0.99);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/* Island placement variants */
.island-hero {
    grid-column: 1;
    width: min(70vw, 960px);
    justify-self: center;
    text-align: center;
    padding: 10vh 6vw;
    margin-top: 10vh;
}

.island-left {
    grid-column: 1;
    width: min(52vw, 720px);
    justify-self: start;
    margin-left: 8vw;
}

.island-right {
    grid-column: 1;
    width: min(52vw, 720px);
    justify-self: end;
    margin-right: 8vw;
}

.island-center {
    grid-column: 1;
    width: min(60vw, 820px);
    justify-self: center;
    text-align: center;
}

.island-small {
    width: min(40vw, 560px);
}

/* ---------- Typography ---------- */
.hero-title {
    font-family: var(--space);
    font-weight: 700;
    font-size: clamp(3rem, 8vw, 5rem);
    line-height: 1.02;
    letter-spacing: -0.02em;
    color: var(--cream-petal);
    text-shadow:
        0 0 30px rgba(240, 230, 220, 0.25),
        0 0 60px rgba(138, 74, 90, 0.4);
}

.hero-title .dot {
    color: var(--blush-gold);
    text-shadow: 0 0 20px var(--blush-gold);
}

.hero-subtitle {
    font-family: var(--space);
    font-weight: 500;
    font-style: italic;
    font-size: clamp(1.2rem, 2.2vw, 1.6rem);
    color: var(--mist-rose);
    margin-top: 1rem;
    letter-spacing: 0.04em;
}

.hero-body {
    margin-top: 2.4rem;
    max-width: 60ch;
    margin-left: auto;
    margin-right: auto;
    color: var(--cream-petal);
    font-size: 1.1rem;
}

.island h2 {
    font-family: var(--space);
    font-weight: 600;
    font-size: clamp(2rem, 4vw, 3.2rem);
    line-height: 1.15;
    color: var(--cream-petal);
    margin-bottom: 1.5rem;
    letter-spacing: -0.01em;
}

.island p {
    font-family: var(--inter);
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--cream-petal);
    max-width: 60ch;
    margin-bottom: 1.2rem;
    font-weight: 400;
}

.island p + p {
    margin-top: 0;
}

.section-tag {
    display: inline-block;
    font-family: var(--inter);
    font-weight: 500;
    font-size: 0.85rem;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--dusky-rose);
    margin-bottom: 1.2rem;
}

.dream-list {
    list-style: none;
    margin: 1.6rem 0;
    padding: 0;
}

.dream-list li {
    font-family: var(--inter);
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--cream-petal);
    padding: 0.6rem 0 0.6rem 2.2rem;
    position: relative;
    border-bottom: 1px solid rgba(138, 74, 90, 0.25);
}

.dream-list li:last-child {
    border-bottom: none;
}

.list-marker {
    position: absolute;
    left: 0;
    top: 0.6rem;
    font-family: var(--space);
    font-style: italic;
    color: var(--blush-gold);
    font-size: 1rem;
    letter-spacing: 0.05em;
}

.signoff {
    margin-top: 2.4rem;
    font-family: 'Caveat', cursive;
    font-size: 1.4rem;
    color: var(--mist-rose);
    font-style: italic;
}

/* Whisper (handwritten annotation) */
.whisper {
    position: absolute;
    font-family: 'Caveat', cursive;
    font-weight: 400;
    font-size: 1.1rem;
    color: var(--mist-rose);
    opacity: 0.75;
    pointer-events: none;
    letter-spacing: 0.02em;
    transform: rotate(-2deg);
    white-space: nowrap;
}

.whisper-top-left { top: -2rem; left: 2rem; }
.whisper-top-right { top: -2rem; right: 2rem; transform: rotate(2deg); }
.whisper-bottom-left { bottom: -1.5rem; left: 2rem; transform: rotate(-3deg); }
.whisper-bottom-right { bottom: -1.5rem; right: 2rem; transform: rotate(3deg); }
.whisper-bottom-center { bottom: -1.8rem; left: 50%; transform: translateX(-50%) rotate(-1deg); }
.whisper-right { top: 30%; right: -1rem; transform: rotate(8deg); }

/* ---------- Pulse navigation ---------- */
.pulse-nav {
    position: fixed;
    bottom: 3vh;
    left: 50%;
    transform: translateX(-50%);
    z-index: 20;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.pulse-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--blush-gold);
    border: none;
    cursor: pointer;
    padding: 0;
    position: relative;
    box-shadow: 0 0 12px var(--blush-gold), 0 0 24px rgba(212, 168, 112, 0.6);
    animation: dot-pulse 2.4s ease-in-out infinite;
    order: 2;
}

.pulse-dot::before {
    content: '';
    position: absolute;
    inset: -10px;
    border-radius: 50%;
    border: 1px solid rgba(212, 168, 112, 0.4);
    animation: dot-ring 2.4s ease-out infinite;
}

@keyframes dot-pulse {
    0%, 100% { transform: scale(1); box-shadow: 0 0 12px var(--blush-gold), 0 0 24px rgba(212, 168, 112, 0.6); }
    50% { transform: scale(1.3); box-shadow: 0 0 18px var(--blush-gold), 0 0 36px rgba(212, 168, 112, 0.8); }
}

@keyframes dot-ring {
    0% { transform: scale(0.8); opacity: 0.8; }
    100% { transform: scale(2.4); opacity: 0; }
}

.pulse-menu {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column-reverse;
    align-items: center;
    gap: 0.4rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.6s ease;
    order: 1;
}

.pulse-menu.visible {
    opacity: 1;
    pointer-events: auto;
}

.pulse-menu li {
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.pulse-menu.visible li {
    opacity: 1;
    transform: translateY(0);
}

.pulse-menu.visible li:nth-child(1) { transition-delay: 0.05s; }
.pulse-menu.visible li:nth-child(2) { transition-delay: 0.1s; }
.pulse-menu.visible li:nth-child(3) { transition-delay: 0.15s; }
.pulse-menu.visible li:nth-child(4) { transition-delay: 0.2s; }
.pulse-menu.visible li:nth-child(5) { transition-delay: 0.25s; }
.pulse-menu.visible li:nth-child(6) { transition-delay: 0.3s; }
.pulse-menu.visible li:nth-child(7) { transition-delay: 0.35s; }

.pulse-menu a {
    font-family: 'Caveat', cursive;
    font-weight: 400;
    font-size: 1.1rem;
    color: var(--cream-petal);
    text-decoration: none;
    letter-spacing: 0.05em;
    padding: 0.2rem 0.8rem;
    text-shadow: 0 0 10px rgba(10, 4, 8, 0.9);
    transition: color 0.3s ease, text-shadow 0.3s ease;
}

.pulse-menu a:hover {
    color: var(--blush-gold);
    text-shadow: 0 0 14px rgba(212, 168, 112, 0.8);
}

/* ---------- Depth transitions (via JS updating --depth-progress) ---------- */

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
    .island-hero,
    .island-left,
    .island-right,
    .island-center,
    .island-small {
        width: min(84vw, 560px);
        justify-self: center;
        margin-left: 0;
        margin-right: 0;
    }

    .island {
        padding: 5vh 7vw;
        -webkit-mask-image: radial-gradient(
            ellipse 95% 95% at center,
            #000 35%,
            rgba(0, 0, 0, 0.85) 60%,
            rgba(0, 0, 0, 0.3) 85%,
            transparent 100%
        );
        mask-image: radial-gradient(
            ellipse 95% 95% at center,
            #000 35%,
            rgba(0, 0, 0, 0.85) 60%,
            rgba(0, 0, 0, 0.3) 85%,
            transparent 100%
        );
    }

    .hero-title {
        font-size: clamp(2.4rem, 12vw, 3.6rem);
    }

    .whisper-right { display: none; }
}