/* ===================================================================
   simulai.net — Frutiger Aero × AI Simulation
   Asymmetric narrative · Frosted glass · Blur-to-focus
   =================================================================== */

@property --gradient-angle {
    syntax: '<angle>';
    initial-value: 140deg;
    inherits: false;
}

@property --orb-shift {
    syntax: '<percentage>';
    initial-value: 0%;
    inherits: false;
}

:root {
    /* Color palette */
    --c-deep: #0B1626;          /* Midnight Abyss */
    --c-mid: #132238;           /* Twilight Depth */
    --c-night: #1A2A42;         /* Deep Night */
    --c-cyan: #7EB8E0;          /* Aero Cyan */
    --c-cyan-mute: #3D7AB8;     /* Aurora Blue */
    --c-violet: #6B5CA5;        /* Ether Violet */
    --c-gold: #D4B896;          /* Simulation Gold */
    --c-frost: #C8DFF2;         /* Frost Veil */
    --c-frost-white: #E8F0FA;   /* Frost White */
    --c-mist: #8FA4BC;          /* Mist Gray */

    /* Glass system */
    --glass-bg: rgba(200, 223, 242, 0.08);
    --glass-bg-strong: rgba(200, 223, 242, 0.12);
    --glass-border: 1px solid rgba(200, 223, 242, 0.18);
    --glass-blur: blur(28px) saturate(1.4);
    --glass-shadow: 0 8px 32px rgba(11, 22, 38, 0.5),
                    inset 0 1px 0 rgba(255, 255, 255, 0.10),
                    inset 0 -1px 0 rgba(11, 22, 38, 0.35);
    --glass-radius: 24px;

    /* Type */
    --f-serif: "Cormorant Garamond", Georgia, serif;
    --f-sans: "DM Sans", system-ui, sans-serif;
    --f-mono: "Space Grotesk", "Inter", monospace;

    /* Motion */
    --ease-render: cubic-bezier(0.23, 1, 0.32, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: var(--c-deep);
    color: var(--c-frost-white);
    font-family: var(--f-sans);
    font-size: clamp(0.95rem, 1.1vw, 1.15rem);
    line-height: 1.72;
    letter-spacing: 0.01em;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

::selection {
    background: rgba(126, 184, 224, 0.35);
    color: var(--c-frost-white);
}

/* ===================================================================
   AMBIENT GRADIENT — breathing background (60s cycle)
   =================================================================== */
.ambient-gradient {
    position: fixed;
    inset: 0;
    z-index: -3;
    background:
        radial-gradient(ellipse 80% 60% at 20% 18%, rgba(61, 122, 184, 0.45), transparent 60%),
        radial-gradient(ellipse 70% 55% at 82% 70%, rgba(107, 92, 165, 0.40), transparent 60%),
        radial-gradient(ellipse 50% 40% at 50% 110%, rgba(212, 184, 150, 0.18), transparent 60%),
        linear-gradient(var(--gradient-angle), #0B1626 0%, #132238 45%, #0B1626 100%);
    animation: gradient-cycle 60s linear infinite;
}

@keyframes gradient-cycle {
    0%   { --gradient-angle: 140deg; }
    50%  { --gradient-angle: 320deg; }
    100% { --gradient-angle: 500deg; }
}

/* ===================================================================
   VOLUMETRIC LIGHT ORBS
   =================================================================== */
.orbs-container {
    position: fixed;
    inset: 0;
    z-index: -2;
    pointer-events: none;
    overflow: hidden;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(70px);
    will-change: transform;
}

.orb--cyan {
    background: radial-gradient(circle, rgba(126, 184, 224, 0.42), transparent 70%);
}

.orb--gold {
    background: radial-gradient(circle, rgba(212, 184, 150, 0.32), transparent 70%);
}

.orb--violet {
    background: radial-gradient(circle, rgba(107, 92, 165, 0.30), transparent 70%);
}

.orb--one   { width: 520px; height: 520px; top: 5%;   left: -8%;  animation: orb-drift-a 38s ease-in-out infinite; }
.orb--two   { width: 380px; height: 380px; top: 30%;  right: -6%; animation: orb-drift-b 44s ease-in-out infinite; }
.orb--three { width: 600px; height: 600px; top: 65%;  left: 30%;  animation: orb-drift-c 42s ease-in-out infinite; }
.orb--four  { width: 320px; height: 320px; top: 110%; left: -4%;  animation: orb-drift-a 36s ease-in-out infinite reverse; }
.orb--five  { width: 460px; height: 460px; top: 150%; right: 10%; animation: orb-drift-b 40s ease-in-out infinite; }

@keyframes orb-drift-a {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50%      { transform: translate(80px, 60px) scale(1.08); }
}

@keyframes orb-drift-b {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50%      { transform: translate(-60px, 100px) scale(0.95); }
}

@keyframes orb-drift-c {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50%      { transform: translate(50px, -80px) scale(1.05); }
}

/* ===================================================================
   REFRACTION LINES — horizontal light bands
   =================================================================== */
.refraction-line {
    position: fixed;
    left: -20%;
    width: 140%;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(126, 184, 224, 0.0) 20%, rgba(126, 184, 224, 0.55) 50%, rgba(126, 184, 224, 0.0) 80%, transparent 100%);
    pointer-events: none;
    z-index: 1;
    will-change: transform, opacity;
}

.refraction-line--one   { top: 22%; animation: refract-pass 18s ease-in-out infinite; }
.refraction-line--two   { top: 58%; animation: refract-pass 22s ease-in-out infinite 6s; }
.refraction-line--three { top: 84%; animation: refract-pass 26s ease-in-out infinite 12s; }

@keyframes refract-pass {
    0%   { transform: translateX(-30%) translateY(0); opacity: 0; }
    20%  { opacity: 0.9; }
    50%  { transform: translateX(20%) translateY(-12px); opacity: 0.6; }
    80%  { opacity: 0.5; }
    100% { transform: translateX(40%) translateY(0); opacity: 0; }
}

/* ===================================================================
   NAV PILL — translucent wordmark only
   =================================================================== */
.nav-pill {
    position: fixed;
    top: 28px;
    left: 50%;
    transform: translateX(-50%);
    padding: 12px 28px;
    background: var(--glass-bg-strong);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: var(--glass-border);
    border-radius: 100px;
    box-shadow: var(--glass-shadow);
    z-index: 50;
    font-family: var(--f-mono);
    font-size: clamp(0.75rem, 0.9vw, 0.9rem);
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--c-cyan);
}

.nav-pill__mark {
    display: inline-flex;
    align-items: center;
    gap: 0;
}

.nav-pill__dot {
    color: var(--c-gold);
    margin: 0 1px;
}

/* ===================================================================
   SCROLL DOTS — contextual section indicators
   =================================================================== */
.scroll-dots {
    position: fixed;
    right: 32px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 22px;
    z-index: 40;
    padding: 16px 12px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: var(--glass-border);
    border-radius: 100px;
    box-shadow: var(--glass-shadow);
}

.scroll-dot {
    appearance: none;
    border: none;
    background: rgba(200, 223, 242, 0.18);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    cursor: pointer;
    position: relative;
    transition: background 600ms var(--ease-render), transform 400ms var(--ease-render);
    padding: 0;
}

.scroll-dot:hover { transform: scale(1.4); }

.scroll-dot.is-active {
    background: var(--c-cyan);
    box-shadow: 0 0 12px rgba(126, 184, 224, 0.85);
    transform: scale(1.3);
}

.scroll-dot__label {
    position: absolute;
    right: calc(100% + 14px);
    top: 50%;
    transform: translateY(-50%) translateX(8px);
    font-family: var(--f-mono);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--c-cyan);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 400ms var(--ease-render), transform 400ms var(--ease-render);
}

.scroll-dot:hover .scroll-dot__label,
.scroll-dot.is-active .scroll-dot__label {
    opacity: 1;
    transform: translateY(-50%) translateX(0);
}

/* ===================================================================
   GLOBAL CANVAS / ZONES
   =================================================================== */
.canvas {
    position: relative;
    z-index: 2;
}

.zone {
    position: relative;
    padding: 0 max(48px, 6vw);
    display: grid;
    grid-template-columns: repeat(16, 1fr);
    gap: 24px;
    align-content: center;
}

.zone__bg {
    position: absolute;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

/* ===================================================================
   GLASS PANEL — signature element
   =================================================================== */
.glass-panel {
    position: relative;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: var(--glass-border);
    border-radius: var(--glass-radius);
    box-shadow: var(--glass-shadow);
    padding: clamp(28px, 3.4vw, 56px);
    overflow: hidden;
}

.glass-panel::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(200, 223, 242, 0.14) 0%, transparent 35%);
    pointer-events: none;
    border-radius: inherit;
}

.glass-panel::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.30), transparent);
    pointer-events: none;
}

/* ===================================================================
   TYPOGRAPHY HELPERS
   =================================================================== */
.panel-eyebrow {
    display: inline-block;
    font-family: var(--f-mono);
    font-size: clamp(0.68rem, 0.82vw, 0.82rem);
    font-weight: 500;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--c-cyan);
    margin-bottom: 18px;
}

.meta-tag {
    display: inline-block;
    padding: 6px 14px;
    border: 1px solid rgba(126, 184, 224, 0.3);
    border-radius: 100px;
    font-family: var(--f-mono);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--c-cyan);
    background: rgba(126, 184, 224, 0.05);
}

.panel-headline {
    font-family: var(--f-serif);
    font-weight: 600;
    font-size: clamp(2.4rem, 6vw, 5.2rem);
    line-height: 1.05;
    letter-spacing: -0.02em;
    color: var(--c-frost-white);
    margin-bottom: 28px;
}

.panel-headline em {
    font-weight: 300;
    font-style: italic;
    color: var(--c-gold);
}

.panel-headline--center { text-align: center; }

.panel-body p + p { margin-top: 16px; }
.panel-body strong {
    font-weight: 500;
    color: var(--c-cyan);
}

/* ===================================================================
   ZONE 1: EMERGENCE (100vh)
   =================================================================== */
.zone--emergence {
    min-height: 100vh;
    align-content: center;
    padding-top: 120px;
    padding-bottom: 80px;
}

.duotone {
    position: absolute;
    inset: 0;
    z-index: -1;
    overflow: hidden;
}

.duotone--sky {
    background:
        radial-gradient(ellipse at 70% 20%, rgba(126, 184, 224, 0.55) 0%, transparent 55%),
        radial-gradient(ellipse at 25% 80%, rgba(107, 92, 165, 0.40) 0%, transparent 60%),
        linear-gradient(180deg, #1A2A42 0%, #0B1626 70%);
}

.duotone__layer {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.duotone__layer--shadow {
    background: radial-gradient(ellipse at 50% 110%, rgba(11, 22, 38, 0.85), transparent 60%);
    mix-blend-mode: multiply;
}

.duotone__layer--highlight {
    background: radial-gradient(circle at 75% 25%, rgba(126, 184, 224, 0.45), transparent 50%);
    mix-blend-mode: screen;
}

.topo-pattern {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0.55;
}

.emergence__content {
    grid-column: 2 / span 12;
    z-index: 2;
    text-align: left;
    padding-top: 4vh;
}

.emergence__meta { margin-bottom: 28px; }

.wordmark {
    font-family: var(--f-serif);
    font-weight: 600;
    font-size: clamp(4rem, 14vw, 13rem);
    line-height: 0.95;
    letter-spacing: -0.04em;
    color: var(--c-frost-white);
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
}

.wordmark__primary {
    background: linear-gradient(180deg, #E8F0FA 0%, #C8DFF2 60%, #7EB8E0 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.wordmark__separator {
    color: var(--c-gold);
    font-style: italic;
    font-weight: 300;
    margin: 0 0.04em;
}

.wordmark__suffix {
    color: var(--c-cyan);
    font-weight: 300;
    font-style: italic;
    font-size: 0.55em;
    margin-left: 0.04em;
    transform: translateY(-0.18em);
}

.emergence__tagline {
    font-family: var(--f-serif);
    font-weight: 300;
    font-style: italic;
    font-size: clamp(1.2rem, 3vw, 2.4rem);
    line-height: 1.25;
    color: var(--c-frost-white);
    margin-top: 28px;
    max-width: 18ch;
    opacity: 0.9;
}

.glass-panel--emergence-poem {
    grid-column: 11 / span 5;
    align-self: end;
    transform: translateY(-2vh);
    max-width: 420px;
    margin-left: auto;
}

.panel-quote {
    font-family: var(--f-serif);
    font-weight: 300;
    font-style: italic;
    font-size: clamp(1.1rem, 1.5vw, 1.45rem);
    line-height: 1.4;
    color: var(--c-frost-white);
    margin-bottom: 18px;
}

.panel-byline {
    display: block;
    font-family: var(--f-mono);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--c-mist);
}

.emergence__scroll-hint {
    grid-column: 2 / span 4;
    margin-top: 6vh;
    display: flex;
    align-items: center;
    gap: 14px;
    font-family: var(--f-mono);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--c-mist);
}

.scroll-hint__line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--c-cyan), transparent);
    max-width: 120px;
    animation: scroll-line-pulse 2.6s ease-in-out infinite;
}

@keyframes scroll-line-pulse {
    0%, 100% { opacity: 0.4; transform: scaleX(1); transform-origin: left; }
    50%      { opacity: 1;   transform: scaleX(1.4); transform-origin: left; }
}

/* ===================================================================
   ZONE 2: VISION (120vh)
   =================================================================== */
.zone--vision {
    min-height: 120vh;
    padding-top: 14vh;
    padding-bottom: 14vh;
}

.zone__bg--vision {
    background:
        radial-gradient(ellipse at 25% 30%, rgba(61, 122, 184, 0.30) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 70%, rgba(107, 92, 165, 0.25) 0%, transparent 55%);
}

.glass-panel--vision-large {
    grid-column: 2 / span 9;
    align-self: start;
    margin-top: 4vh;
}

.glass-panel--vision-large::before {
    background:
        linear-gradient(180deg, rgba(200, 223, 242, 0.16) 0%, transparent 30%),
        radial-gradient(ellipse at 100% 0%, rgba(126, 184, 224, 0.20), transparent 50%);
}

.panel-row {
    display: flex;
    gap: 24px;
    align-items: stretch;
    margin-top: 36px;
    padding-top: 28px;
    border-top: 1px solid rgba(200, 223, 242, 0.12);
}

.panel-row__item {
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex: 1;
}

.panel-row__label {
    font-family: var(--f-mono);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--c-mist);
}

.panel-row__value {
    font-family: var(--f-serif);
    font-style: italic;
    font-weight: 500;
    font-size: clamp(1.2rem, 1.6vw, 1.6rem);
    color: var(--c-cyan);
}

.panel-row__divider {
    width: 1px;
    background: linear-gradient(180deg, transparent, rgba(200, 223, 242, 0.25), transparent);
}

.glass-panel--vision-small {
    grid-column: 12 / span 4;
    align-self: end;
    margin-bottom: -8vh;
}

.glass-panel--vision-small::before {
    background:
        linear-gradient(180deg, rgba(212, 184, 150, 0.10) 0%, transparent 40%);
}

.oversized-stat {
    margin-top: 6px;
    margin-bottom: 18px;
    line-height: 0.9;
}

.stat-number {
    font-family: var(--f-serif);
    font-weight: 600;
    font-size: clamp(4.5rem, 9vw, 8rem);
    line-height: 0.9;
    letter-spacing: -0.04em;
    color: var(--c-gold);
    display: inline-block;
}

.stat-unit {
    font-weight: 300;
    font-style: italic;
    color: var(--c-cyan);
    font-size: 0.5em;
}

.oversized-stat__caption {
    font-family: var(--f-serif);
    font-weight: 300;
    font-style: italic;
    font-size: clamp(1rem, 1.2vw, 1.2rem);
    line-height: 1.4;
    color: var(--c-frost-white);
}

.oversized-stat__caption em {
    color: var(--c-gold);
    font-style: italic;
}

.vision-orb {
    position: absolute;
    width: 360px;
    height: 360px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(126, 184, 224, 0.35), transparent 70%);
    filter: blur(50px);
    bottom: -10%;
    left: 30%;
    animation: orb-drift-c 36s ease-in-out infinite;
}

/* ===================================================================
   ZONE 3: LAYERS (150vh)
   =================================================================== */
.zone--layers {
    min-height: 150vh;
    padding-top: 18vh;
    padding-bottom: 18vh;
    align-content: start;
    grid-template-rows: auto auto auto auto auto;
}

.zone__bg--layers {
    background:
        radial-gradient(ellipse at 50% 40%, rgba(61, 122, 184, 0.25) 0%, transparent 55%),
        radial-gradient(ellipse at 20% 90%, rgba(212, 184, 150, 0.18) 0%, transparent 50%);
}

.layers__header {
    grid-column: 3 / span 12;
    text-align: center;
    margin-bottom: 6vh;
}

.glass-panel--layer {
    position: relative;
    z-index: 1;
}

.glass-panel--layer-data {
    grid-column: 2 / span 8;
    z-index: 3;
}

.glass-panel--layer-render {
    grid-column: 7 / span 8;
    margin-top: -6vh;
    z-index: 2;
}

.glass-panel--layer-render::before {
    background:
        linear-gradient(180deg, rgba(212, 184, 150, 0.12) 0%, transparent 40%),
        radial-gradient(ellipse at 0% 100%, rgba(126, 184, 224, 0.15), transparent 50%);
}

.glass-panel--layer-mind {
    grid-column: 4 / span 9;
    margin-top: -4vh;
    z-index: 1;
}

.glass-panel--layer-mind::before {
    background:
        linear-gradient(180deg, rgba(107, 92, 165, 0.18) 0%, transparent 40%);
}

.layer-index {
    display: inline-block;
    font-family: var(--f-mono);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--c-cyan);
    margin-bottom: 18px;
    padding: 4px 12px;
    border: 1px solid rgba(126, 184, 224, 0.3);
    border-radius: 100px;
    background: rgba(126, 184, 224, 0.06);
}

.layer-title {
    font-family: var(--f-serif);
    font-weight: 600;
    font-size: clamp(2rem, 4.5vw, 3.6rem);
    line-height: 1.05;
    letter-spacing: -0.02em;
    color: var(--c-frost-white);
    margin-bottom: 18px;
}

.layer-title em { font-style: italic; color: var(--c-gold); font-weight: 300; }

.layer-body {
    font-size: clamp(1rem, 1.15vw, 1.15rem);
    color: var(--c-frost-white);
    max-width: 60ch;
    margin-bottom: 28px;
}

.layer-body em {
    font-style: italic;
    color: var(--c-cyan);
}

.layer-meta {
    list-style: none;
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
    padding-top: 22px;
    border-top: 1px solid rgba(200, 223, 242, 0.12);
}

.layer-meta li {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.layer-meta span {
    font-family: var(--f-mono);
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--c-mist);
}

.layer-meta strong {
    font-family: var(--f-serif);
    font-style: italic;
    font-weight: 500;
    font-size: 1.2rem;
    color: var(--c-cyan);
}

.layers-caption {
    grid-column: 2 / span 5;
    margin-top: 6vh;
    color: var(--c-mist);
    font-style: italic;
    font-family: var(--f-serif);
    font-size: 1.1rem;
    line-height: 1.5;
}

/* ===================================================================
   ZONE 4: INTERFACE (100vh) — rack focus interaction
   =================================================================== */
.zone--interface {
    min-height: 100vh;
    align-content: center;
    padding-top: 10vh;
    padding-bottom: 10vh;
    overflow: hidden;
}

.zone__bg--interface {
    background: var(--c-deep);
}

.rack-focus-image {
    position: absolute;
    inset: -8%;
    background-image:
        radial-gradient(circle at 30% 30%, rgba(126, 184, 224, 0.6) 0%, transparent 30%),
        radial-gradient(circle at 70% 60%, rgba(212, 184, 150, 0.5) 0%, transparent 35%),
        radial-gradient(circle at 85% 20%, rgba(232, 240, 250, 0.7) 0%, transparent 25%),
        radial-gradient(circle at 15% 80%, rgba(107, 92, 165, 0.55) 0%, transparent 30%),
        radial-gradient(circle at 45% 45%, rgba(61, 122, 184, 0.5) 0%, transparent 40%),
        linear-gradient(135deg, #1A2A42 0%, #132238 50%, #0B1626 100%);
    background-size: cover;
    filter: blur(0px);
    transition: filter 200ms var(--ease-render);
    will-change: filter;
}

.rack-focus-overlay {
    position: absolute;
    inset: 0;
    background:
        repeating-linear-gradient(115deg, transparent 0px, transparent 60px, rgba(126, 184, 224, 0.04) 60px, rgba(126, 184, 224, 0.04) 61px),
        radial-gradient(ellipse at 50% 50%, transparent 30%, rgba(11, 22, 38, 0.6) 100%);
    mix-blend-mode: screen;
}

.glass-panel--interface {
    grid-column: 3 / span 12;
    align-self: center;
    margin-top: 2vh;
    cursor: crosshair;
    position: relative;
}

.glass-panel--interface::before {
    background:
        linear-gradient(180deg, rgba(200, 223, 242, 0.16) 0%, transparent 35%),
        radial-gradient(ellipse at 100% 100%, rgba(212, 184, 150, 0.15), transparent 60%);
}

.interface-body {
    font-family: var(--f-serif);
    font-weight: 300;
    font-style: italic;
    font-size: clamp(1.15rem, 1.6vw, 1.6rem);
    line-height: 1.45;
    color: var(--c-frost-white);
    max-width: 36ch;
    margin-bottom: 36px;
    opacity: 0.92;
}

.interface-readout {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    padding-top: 24px;
    border-top: 1px solid rgba(200, 223, 242, 0.12);
}

.readout-cell {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.readout-label {
    font-family: var(--f-mono);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--c-mist);
}

.readout-value {
    font-family: var(--f-serif);
    font-style: italic;
    font-weight: 500;
    font-size: clamp(1.3rem, 2vw, 1.9rem);
    color: var(--c-cyan);
    letter-spacing: -0.01em;
    transition: color 300ms var(--ease-render);
}

.interface-cursor {
    position: absolute;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 1px solid rgba(126, 184, 224, 0.6);
    background: radial-gradient(circle, rgba(126, 184, 224, 0.18), transparent 70%);
    pointer-events: none;
    opacity: 0;
    transform: translate(-50%, -50%);
    transition: opacity 240ms var(--ease-render);
    z-index: 5;
}

.glass-panel--interface:hover .interface-cursor {
    opacity: 1;
}

/* ===================================================================
   ZONE 5: INVITATION (80vh) — clear reveal
   =================================================================== */
.zone--invitation {
    min-height: 80vh;
    align-content: center;
    padding-top: 8vh;
    padding-bottom: 12vh;
    overflow: hidden;
}

.zone__bg--invitation {
    background:
        radial-gradient(ellipse at 70% 40%, rgba(126, 184, 224, 0.25) 0%, transparent 50%),
        radial-gradient(ellipse at 30% 80%, rgba(212, 184, 150, 0.15) 0%, transparent 55%);
}

.zone__bg--clear::after {
    content: '';
    position: absolute;
    top: 8%;
    right: -6%;
    width: 70%;
    height: 84%;
    border-radius: 32px;
    background:
        radial-gradient(circle at 25% 30%, #E8F0FA 0%, transparent 18%),
        radial-gradient(circle at 60% 50%, #C8DFF2 0%, transparent 30%),
        radial-gradient(circle at 80% 70%, #D4B896 0%, transparent 25%),
        radial-gradient(ellipse at 50% 100%, #7EB8E0 0%, transparent 40%),
        linear-gradient(160deg, #3D7AB8 0%, #6B5CA5 60%, #1A2A42 100%);
    box-shadow: 0 30px 80px rgba(11, 22, 38, 0.7);
    filter: saturate(1.1) contrast(1.05);
}

.glass-panel--invitation {
    grid-column: 2 / span 5;
    align-self: stretch;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    z-index: 2;
    min-height: 60vh;
}

.glass-panel--invitation::before {
    background:
        linear-gradient(180deg, rgba(200, 223, 242, 0.18) 0%, transparent 40%);
}

.panel-headline--vertical {
    font-size: clamp(2.6rem, 5.4vw, 4.4rem);
    line-height: 1.02;
    margin-bottom: 32px;
}

.invitation-body {
    font-family: var(--f-serif);
    font-weight: 300;
    font-style: italic;
    font-size: clamp(1.1rem, 1.4vw, 1.35rem);
    line-height: 1.5;
    color: var(--c-frost-white);
    margin-bottom: 18px;
    opacity: 0.92;
}

.invitation-body--small {
    font-size: clamp(0.95rem, 1.1vw, 1.05rem);
    color: var(--c-mist);
    font-style: normal;
    font-family: var(--f-sans);
    line-height: 1.6;
}

.invitation-signature {
    margin-top: 36px;
    padding-top: 22px;
    border-top: 1px solid rgba(200, 223, 242, 0.12);
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.invitation-signature__mark {
    font-family: var(--f-serif);
    font-weight: 600;
    font-size: clamp(1.4rem, 2vw, 2rem);
    letter-spacing: -0.02em;
    color: var(--c-frost-white);
}

.invitation-signature__meta {
    font-family: var(--f-mono);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--c-cyan);
}

.clarity-caption {
    grid-column: 8 / span 7;
    align-self: end;
    margin-bottom: 4vh;
    z-index: 2;
    color: var(--c-frost-white);
    font-family: var(--f-serif);
    font-style: italic;
    font-size: clamp(1rem, 1.2vw, 1.2rem);
    line-height: 1.5;
    max-width: 36ch;
    margin-left: auto;
    text-align: right;
    padding: 18px 22px;
    background: rgba(11, 22, 38, 0.30);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 16px;
    border: 1px solid rgba(200, 223, 242, 0.10);
}

/* ===================================================================
   FOOTER
   =================================================================== */
.page-footer {
    padding: 40px max(48px, 6vw);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--f-mono);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--c-mist);
    border-top: 1px solid rgba(200, 223, 242, 0.08);
}

.footer-mark {
    font-family: var(--f-serif);
    font-style: italic;
    font-weight: 500;
    font-size: 1.1rem;
    letter-spacing: -0.01em;
    text-transform: none;
    color: var(--c-frost-white);
}

/* ===================================================================
   REVEAL ANIMATIONS — blur-to-focus
   =================================================================== */
.reveal {
    opacity: 0.3;
    filter: blur(12px);
    transform: translateY(18px);
    transition: opacity 800ms var(--ease-render), filter 800ms var(--ease-render), transform 800ms var(--ease-render);
    will-change: opacity, filter, transform;
}

.reveal.is-visible {
    opacity: 1;
    filter: blur(0);
    transform: translateY(0);
}

.reveal.is-locked {
    will-change: auto;
}

/* ===================================================================
   RESPONSIVE
   =================================================================== */
@media (max-width: 900px) {
    .zone {
        padding: 0 24px;
        gap: 16px;
    }

    .scroll-dots { right: 14px; gap: 16px; padding: 12px 8px; }
    .scroll-dot__label { display: none; }

    .emergence__content { grid-column: 1 / -1; }
    .glass-panel--emergence-poem {
        grid-column: 1 / -1;
        margin-top: 6vh;
        margin-left: 0;
        max-width: none;
        transform: none;
    }
    .emergence__scroll-hint { grid-column: 1 / -1; }

    .glass-panel--vision-large { grid-column: 1 / -1; }
    .glass-panel--vision-small {
        grid-column: 1 / -1;
        margin-top: 24px;
        margin-bottom: 0;
    }

    .layers__header { grid-column: 1 / -1; }
    .glass-panel--layer-data,
    .glass-panel--layer-render,
    .glass-panel--layer-mind {
        grid-column: 1 / -1;
        margin-top: 24px;
    }

    .glass-panel--interface { grid-column: 1 / -1; }
    .interface-readout { grid-template-columns: 1fr; gap: 16px; }

    .glass-panel--invitation { grid-column: 1 / -1; min-height: auto; }
    .clarity-caption {
        grid-column: 1 / -1;
        margin-top: 24px;
        text-align: left;
        margin-left: 0;
    }

    .panel-row { flex-wrap: wrap; }

    .layer-meta { gap: 18px; }

    .page-footer { flex-direction: column; gap: 12px; padding: 28px 24px; }

    .layers-caption { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
    .nav-pill { padding: 10px 18px; font-size: 0.7rem; }
    .wordmark { font-size: clamp(3rem, 22vw, 6rem); }
    .glass-panel { padding: 22px; }
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
    .reveal { opacity: 1; filter: blur(0); transform: none; transition: none; }
    .ambient-gradient,
    .orb,
    .refraction-line,
    .scroll-hint__line,
    .vision-orb {
        animation: none !important;
    }
}