/* scientific.quest - Y2K Academic Futurism */
/* Palette: Glacial White #f0f3f5, Frost Pane #e4eaee, Obsidian #1c2127,
   Slate Mist #5a6872, Frost Blue #8fb8c7, Marble Vein #b5a898,
   Deep Charcoal #0e1317 */

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background: #f0f3f5;
    color: #1c2127;
    font-family: 'Source Sans 3', 'Source Sans Pro', sans-serif;
    font-weight: 300;
    font-size: clamp(0.95rem, 1.2vw, 1.15rem);
    line-height: 1.75;
    overflow-x: hidden;
    position: relative;
}

/* ============================================
   Background Layer (z-0)
   ============================================ */

.bg-layer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.orbital-diagram {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 80vw;
    height: 80vw;
    max-width: 800px;
    max-height: 800px;
    transform: translate(-50%, -50%);
}

.orbit-outer {
    animation: orbit-rotate 120s linear infinite;
    transform-origin: 400px 400px;
    will-change: transform;
}

.orbit-mid {
    animation: orbit-rotate 75s linear infinite reverse;
    transform-origin: 400px 400px;
    will-change: transform;
}

.orbit-inner {
    animation: orbit-rotate 45s linear infinite;
    transform-origin: 400px 400px;
    will-change: transform;
}

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

.knowledge-graph {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

/* ============================================
   Overlay Layer (z-2)
   ============================================ */

.overlay-layer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.overlay-circle {
    position: absolute;
    width: 40vw;
    height: 40vw;
    border-radius: 50%;
    background: rgba(143, 184, 199, 0.04);
    border: 1px solid rgba(143, 184, 199, 0.08);
    top: 10vh;
    left: -10vw;
}

.overlay-rect {
    position: absolute;
    width: 30vw;
    height: 50vh;
    border-radius: 4px;
    background: rgba(143, 184, 199, 0.04);
    border: 1px solid rgba(143, 184, 199, 0.08);
    top: 40vh;
    right: -5vw;
}

.overlay-circle-sm {
    position: absolute;
    width: 25vw;
    height: 25vw;
    border-radius: 50%;
    background: rgba(14, 19, 23, 0.03);
    border: 1px solid rgba(14, 19, 23, 0.05);
    bottom: 15vh;
    left: 30vw;
}

/* ============================================
   Scroll Progress Indicator
   ============================================ */

.scroll-indicator {
    position: fixed;
    right: 2vw;
    top: 15vh;
    height: 70vh;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.scroll-track {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 1px;
    height: 100%;
    background: rgba(181, 168, 152, 0.2);
}

.scroll-fill {
    width: 100%;
    height: 0%;
    background: rgba(143, 184, 199, 0.5);
    transform-origin: top;
    transition: height 100ms linear;
}

.scroll-node {
    position: absolute;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #b5a898;
    left: 50%;
    transform: translateX(-50%);
    transition: background-color 400ms ease, box-shadow 400ms ease;
}

.scroll-node[data-chamber="0"] { top: 0; }
.scroll-node[data-chamber="1"] { top: 25%; }
.scroll-node[data-chamber="2"] { top: 50%; }
.scroll-node[data-chamber="3"] { top: 75%; }
.scroll-node[data-chamber="4"] { top: 100%; }

.scroll-node.active {
    background: #8fb8c7;
    box-shadow: 0 0 8px rgba(143, 184, 199, 0.4);
}

/* ============================================
   Chambers - General
   ============================================ */

.chamber {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8vw;
    z-index: 1;
}

.chamber-content {
    width: 100%;
    max-width: 1200px;
    position: relative;
}

/* ============================================
   Chamber 1: Hero
   ============================================ */

.chamber-hero {
    text-align: center;
}

.chamber-hero .chamber-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.laurel-arc {
    width: clamp(200px, 30vw, 400px);
    height: auto;
    margin-bottom: 2rem;
}

.laurel-path,
.laurel-leaf-l,
.laurel-leaf-r {
    opacity: 0;
    transition: opacity 2s cubic-bezier(0.16, 1, 0.3, 1);
}

.laurel-arc.revealed .laurel-path,
.laurel-arc.revealed .laurel-leaf-l,
.laurel-arc.revealed .laurel-leaf-r {
    opacity: 0.25;
}

.hero-title {
    font-family: 'Libre Baskerville', 'Georgia', serif;
    font-weight: 400;
    font-size: clamp(3rem, 8vw, 7rem);
    letter-spacing: 0.04em;
    color: #1c2127;
    line-height: 1.35;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 1.2s cubic-bezier(0.22, 1, 0.36, 1),
                transform 1.2s cubic-bezier(0.22, 1, 0.36, 1),
                letter-spacing 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.hero-title.revealed {
    opacity: 1;
    transform: translateY(0);
    letter-spacing: 0.02em;
}

.hero-meta {
    font-family: 'DM Mono', monospace;
    font-weight: 400;
    font-size: 0.8rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #8fb8c7;
    margin-top: 1.5rem;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 1s cubic-bezier(0.22, 1, 0.36, 1) 1.5s,
                transform 1s cubic-bezier(0.22, 1, 0.36, 1) 1.5s;
}

.hero-meta.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Breathing Zones
   ============================================ */

.breathing-zone {
    height: 30vh;
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.breathing-zone::after {
    content: '';
    display: block;
    width: 60%;
    height: 1px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(240, 243, 245, 0.06) 20%,
        rgba(228, 234, 238, 0.1) 50%,
        rgba(240, 243, 245, 0.06) 80%,
        transparent 100%
    );
    position: absolute;
    top: 50%;
    left: 20%;
}

.breathing-zone-final {
    height: 15vh;
}

.geometric-specimen {
    width: 80px;
    height: 80px;
    opacity: 0.6;
}

.geometric-specimen.tetra {
    animation: gentle-rotate 60s linear infinite;
}

.geometric-specimen.cube {
    animation: gentle-rotate 80s linear infinite reverse;
}

.geometric-specimen.icosa {
    animation: gentle-rotate 70s linear infinite;
}

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

/* ============================================
   Glass Cards
   ============================================ */

.glass-card {
    background: rgba(240, 243, 245, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(143, 184, 199, 0.15);
    border-radius: 2px;
    padding: clamp(1.5rem, 3vw, 2.5rem);
    transition: border-color 400ms ease, box-shadow 400ms ease;
}

.glass-card:hover {
    border-color: rgba(143, 184, 199, 0.35);
    box-shadow: 0 4px 24px rgba(14, 19, 23, 0.04);
}

.glass-card h2 {
    font-family: 'Libre Baskerville', 'Georgia', serif;
    font-weight: 700;
    font-size: clamp(1.8rem, 4vw, 3.2rem);
    line-height: 1.35;
    letter-spacing: 0.02em;
    color: #1c2127;
    margin-bottom: 1rem;
}

.glass-card p {
    font-family: 'Source Sans 3', 'Source Sans Pro', sans-serif;
    font-weight: 300;
    color: #1c2127;
    margin-bottom: 0.75rem;
}

.glass-card p:last-child {
    margin-bottom: 0;
}

.glass-card-wide {
    max-width: 720px;
    margin: 0 auto;
}

.card-label {
    font-family: 'DM Mono', monospace;
    font-weight: 400;
    font-size: 0.8rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #8fb8c7;
    display: block;
    margin-bottom: 1rem;
}

/* ============================================
   Chamber 2: The Inquiry - Stagger Columns
   ============================================ */

.stagger-columns {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(1.5rem, 3vw, 2.5rem);
    align-items: start;
}

.column-1 {
    margin-top: 0;
}

.column-2 {
    margin-top: 15vh;
}

.column-3 {
    margin-top: 30vh;
}

/* ============================================
   Chamber 3: The Method - Centered Block
   ============================================ */

.centered-block {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: left;
}

.column-capital {
    width: clamp(150px, 20vw, 300px);
    height: auto;
    margin-top: 3rem;
}

.capital-path,
.capital-scroll-l,
.capital-scroll-r {
    opacity: 0;
    transition: opacity 2s cubic-bezier(0.65, 0, 0.35, 1);
}

.column-capital.revealed .capital-path,
.column-capital.revealed .capital-scroll-l,
.column-capital.revealed .capital-scroll-r {
    opacity: 0.2;
}

/* Marble texture background for method chamber card
   Uses marble palette: #e8e3de, #f0ede9, #e4eaee */
.chamber-method .glass-card {
    background:
        radial-gradient(ellipse at 20% 30%, #e8e3de66 0%, transparent 60%),
        radial-gradient(ellipse at 80% 60%, #f0ede966 0%, transparent 50%),
        radial-gradient(ellipse at 50% 80%, #e4eaee59 0%, transparent 55%),
        rgba(240, 243, 245, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

/* ============================================
   Chamber 4: The Diagonal
   ============================================ */

.diagonal-layout {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    position: relative;
}

.diagonal-block {
    max-width: 500px;
}

.diagonal-block-1 {
    align-self: flex-start;
    transform: translate(0, 0);
}

.diagonal-block-2 {
    align-self: center;
    transform: translate(5%, 0);
}

.diagonal-block-3 {
    align-self: flex-end;
    transform: translate(0, 0);
}

/* ============================================
   Chamber 5: The Horizon
   ============================================ */

.chamber-horizon .chamber-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.horizon-block {
    width: 100%;
    max-width: 720px;
}

.horizon-coda {
    margin-top: 4rem;
    text-align: center;
}

.coda-text {
    font-family: 'Libre Baskerville', 'Georgia', serif;
    font-weight: 400;
    font-size: clamp(1.2rem, 2.5vw, 2rem);
    letter-spacing: 0.04em;
    color: #5a6872;
}

.coda-meta {
    font-family: 'DM Mono', monospace;
    font-weight: 400;
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: #b5a898;
    display: block;
    margin-top: 0.75rem;
}

/* ============================================
   Reveal Animations
   ============================================ */

.reveal-element {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 800ms cubic-bezier(0.22, 1, 0.36, 1),
                transform 800ms cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal-element.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Heading letter-spacing settle animation */
.reveal-element.revealed .glass-card h2 {
    animation: letter-settle 1.2s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

@keyframes letter-settle {
    from { letter-spacing: 0.08em; }
    to { letter-spacing: 0.02em; }
}

/* ============================================
   SVG Path Draw Animation
   ============================================ */

.laurel-path.draw-active {
    animation: path-draw 3s cubic-bezier(0.65, 0, 0.35, 1) forwards;
}

.laurel-leaf-l.draw-active,
.laurel-leaf-r.draw-active {
    animation: path-draw 2.5s cubic-bezier(0.65, 0, 0.35, 1) 0.5s forwards;
}

.capital-path.draw-active {
    animation: path-draw 3s cubic-bezier(0.65, 0, 0.35, 1) forwards;
}

.capital-scroll-l.draw-active,
.capital-scroll-r.draw-active {
    animation: path-draw 2s cubic-bezier(0.65, 0, 0.35, 1) 0.8s forwards;
}

@keyframes path-draw {
    to {
        stroke-dashoffset: 0;
    }
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
    .chamber {
        padding: 6vw;
    }

    .stagger-columns {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .column-1,
    .column-2,
    .column-3 {
        margin-top: 0;
    }

    .diagonal-block-1,
    .diagonal-block-2,
    .diagonal-block-3 {
        align-self: stretch;
        max-width: 100%;
        transform: none;
    }

    .scroll-indicator {
        display: none;
    }

    .overlay-layer {
        display: none;
    }
}

@media (max-width: 480px) {
    .chamber {
        padding: 5vw;
        min-height: auto;
        padding-top: 15vh;
        padding-bottom: 15vh;
    }
}