/* holos.dev — whole-system aesthetic
   Palette: midnight, parchment, gilded brass, glacial blue
*/

:root {
    --c-void: #0B0E1A;
    --c-ink: #101424;
    --c-stone: #1A1F33;
    --c-graphite: #3B4256;
    --c-mist: #5C6580;
    --c-cool: #A8B5C8;
    --c-glacier: #7BA7BC;
    --c-parchment: #F4E9D2;
    --c-cream: #E8DCB8;
    --c-brass: #C9A96E;
    --c-ember: #D87B6E;
    --c-iris: #9B8FBF;

    --f-display: 'Cormorant Garamond', 'Times New Roman', serif;
    --f-body: 'Inter', system-ui, -apple-system, sans-serif;
    --f-mono: 'JetBrains Mono', 'SFMono-Regular', monospace;

    --r-sm: 4px;
    --r-md: 10px;
    --r-lg: 20px;

    --pad-x: clamp(20px, 5vw, 88px);
    --section-y: clamp(80px, 12vw, 160px);
}

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

html { scroll-behavior: smooth; }

body {
    background: var(--c-void);
    color: var(--c-parchment);
    font-family: var(--f-body);
    font-weight: 300;
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse 70% 40% at 50% -10%, rgba(201, 169, 110, 0.08), transparent 60%),
        radial-gradient(ellipse 60% 30% at 90% 110%, rgba(123, 167, 188, 0.06), transparent 60%),
        radial-gradient(ellipse 50% 30% at 0% 100%, rgba(155, 143, 191, 0.05), transparent 60%);
    pointer-events: none;
    z-index: 0;
}

main, .site-header, .site-footer { position: relative; z-index: 2; }

/* Grain overlay */
.grain {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 100;
    opacity: 0.04;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
}

/* Cursor orb */
.cursor-orb {
    position: fixed;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(201,169,110,0.18) 0%, rgba(201,169,110,0.04) 35%, transparent 70%);
    pointer-events: none;
    z-index: 1;
    transform: translate(-50%, -50%);
    transition: opacity 0.4s ease;
    opacity: 0;
}
.cursor-orb.is-active { opacity: 1; }

/* ---------------------------------------------------------------- HEADER */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 50;
    padding: 18px var(--pad-x);
    transition: background 0.4s ease, backdrop-filter 0.4s ease, padding 0.4s ease;
}
.site-header.is-condensed {
    background: rgba(11, 14, 26, 0.78);
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    border-bottom: 1px solid rgba(201,169,110,0.12);
    padding: 12px var(--pad-x);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    max-width: 1480px;
    margin: 0 auto;
}
.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--c-parchment);
    text-decoration: none;
    font-family: var(--f-display);
    font-weight: 500;
}
.brand-mark {
    width: 32px;
    height: 32px;
    color: var(--c-brass);
    transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.brand:hover .brand-mark { transform: rotate(180deg); }
.brand-name {
    font-size: 22px;
    letter-spacing: 0.5px;
}
.brand-dot { color: var(--c-brass); }

.primary-nav {
    display: flex;
    align-items: center;
    gap: 36px;
    font-size: 13px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}
.primary-nav a {
    color: var(--c-cool);
    text-decoration: none;
    position: relative;
    padding: 4px 0;
    transition: color 0.3s ease;
}
.primary-nav a::after {
    content: '';
    position: absolute;
    left: 0; bottom: -2px;
    width: 0; height: 1px;
    background: var(--c-brass);
    transition: width 0.4s ease;
}
.primary-nav a:hover { color: var(--c-parchment); }
.primary-nav a:hover::after { width: 100%; }
.primary-nav a.is-current { color: var(--c-parchment); }
.primary-nav a.is-current::after { width: 100%; }

.nav-cta {
    padding: 10px 18px !important;
    border: 1px solid var(--c-brass);
    color: var(--c-brass) !important;
    border-radius: var(--r-sm);
    transition: background 0.3s ease, color 0.3s ease;
}
.nav-cta::after { display: none; }
.nav-cta:hover {
    background: var(--c-brass);
    color: var(--c-void) !important;
}

.nav-toggle {
    display: none;
    background: none;
    border: 0;
    padding: 8px;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}
.nav-toggle span {
    width: 24px;
    height: 1.5px;
    background: var(--c-parchment);
    transition: transform 0.4s ease, opacity 0.3s ease;
}

/* --------------------------------------------------------------- HERO */
.hero {
    min-height: 100vh;
    padding: clamp(120px, 18vh, 180px) var(--pad-x) clamp(80px, 12vh, 140px);
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
}
.hero-orbit {
    position: absolute;
    right: -18%;
    top: 50%;
    transform: translateY(-50%);
    width: min(900px, 90vw);
    height: min(900px, 90vw);
    pointer-events: none;
    opacity: 0.85;
}
.orbit-svg { width: 100%; height: 100%; }
.orbit-ring { transform-origin: 400px 400px; }
.orbit-ring-1 { animation: orbit 24s linear infinite; }
.orbit-ring-2 { animation: orbit 38s linear infinite reverse; }
.orbit-ring-3 { animation: orbit 56s linear infinite; }
@keyframes orbit { to { transform: rotate(360deg); } }

.hero-text {
    position: relative;
    z-index: 2;
    max-width: 720px;
}
.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    font-family: var(--f-mono);
    font-size: 12px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--c-brass);
    margin-bottom: 32px;
}
.eyebrow-line {
    width: 36px;
    height: 1px;
    background: var(--c-brass);
}

.hero-title {
    font-family: var(--f-display);
    font-weight: 500;
    font-size: clamp(48px, 9vw, 130px);
    line-height: 0.95;
    letter-spacing: -0.02em;
    margin-bottom: 32px;
}
.title-row {
    display: block;
    overflow: hidden;
}
.title-row--accent {
    color: var(--c-brass);
    font-style: italic;
    font-weight: 400;
    padding-left: clamp(16px, 4vw, 64px);
}

.hero-lede {
    font-size: clamp(16px, 1.4vw, 19px);
    line-height: 1.65;
    color: var(--c-cool);
    max-width: 560px;
    margin-bottom: 44px;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    margin-bottom: 56px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 26px;
    border-radius: var(--r-sm);
    font-family: var(--f-mono);
    font-size: 13px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    text-decoration: none;
    cursor: pointer;
    border: 1px solid transparent;
    transition: transform 0.3s cubic-bezier(0.2,0.8,0.2,1), background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}
.btn--primary {
    background: var(--c-brass);
    color: var(--c-void);
}
.btn--primary:hover {
    background: var(--c-cream);
    transform: translateY(-2px);
}
.btn--ghost {
    border-color: var(--c-mist);
    color: var(--c-cool);
    background: transparent;
}
.btn--ghost:hover {
    border-color: var(--c-parchment);
    color: var(--c-parchment);
}
.btn--block { width: 100%; justify-content: center; }
.btn-arrow { transition: transform 0.3s ease; }
.btn:hover .btn-arrow { transform: translateX(4px); }

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--c-mist);
}
.meta-item em {
    font-style: normal;
    color: var(--c-brass);
}
.meta-divider {
    width: 1px;
    height: 12px;
    background: var(--c-graphite);
}
.meta-pulse { color: var(--c-glacier); }
.pulse-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--c-glacier);
    margin-right: 8px;
    animation: pulse 2.4s ease-in-out infinite;
    box-shadow: 0 0 12px var(--c-glacier);
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.7); }
}

/* ---------------------------------------------------- SECTIONS COMMON */
.section {
    padding: var(--section-y) var(--pad-x);
    max-width: 1480px;
    margin: 0 auto;
    position: relative;
}
.section-head {
    max-width: 760px;
    margin-bottom: 72px;
}
.section-head--centered {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}
.section-eyebrow {
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    color: var(--c-brass);
    margin-bottom: 24px;
}
.section-title {
    font-family: var(--f-display);
    font-weight: 500;
    font-size: clamp(38px, 6vw, 84px);
    line-height: 0.98;
    letter-spacing: -0.015em;
    color: var(--c-parchment);
}
.section-title em {
    font-style: italic;
    color: var(--c-brass);
}
.section-lede {
    margin-top: 28px;
    font-size: 17px;
    line-height: 1.7;
    color: var(--c-cool);
    max-width: 620px;
}
.section-head--centered .section-lede {
    margin-left: auto; margin-right: auto;
}

/* ------------------------------------------------------ WHOLE SECTION */
.section--whole {
    border-top: 1px solid rgba(201,169,110,0.1);
}
.whole-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: rgba(201,169,110,0.12);
    border: 1px solid rgba(201,169,110,0.12);
    border-radius: var(--r-md);
    overflow: hidden;
}
.whole-card {
    background: var(--c-ink);
    padding: clamp(28px, 3vw, 48px);
    position: relative;
    transition: background 0.4s ease;
}
.whole-card:hover { background: var(--c-stone); }
.card-index {
    font-family: var(--f-display);
    font-style: italic;
    font-size: 56px;
    color: var(--c-brass);
    line-height: 1;
    margin-bottom: 28px;
    opacity: 0.8;
}
.whole-card h3 {
    font-family: var(--f-display);
    font-weight: 500;
    font-size: 32px;
    line-height: 1.1;
    margin-bottom: 18px;
    color: var(--c-parchment);
}
.whole-card p {
    font-size: 15px;
    line-height: 1.65;
    color: var(--c-cool);
}

/* ------------------------------------------------------ PARTS / ORGAN */
.organ-stage {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(40px, 5vw, 80px);
    align-items: center;
}
.organ-diagram {
    aspect-ratio: 1 / 1;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
}
.organ-svg { width: 100%; height: 100%; }
.organ-node {
    cursor: pointer;
    transition: transform 0.5s cubic-bezier(0.2,0.8,0.2,1);
    transform-origin: center;
    transform-box: fill-box;
}
.organ-node circle {
    transition: fill 0.4s ease, stroke-width 0.4s ease, r 0.4s ease;
}
.organ-node:hover circle,
.organ-node.is-active circle {
    fill: #1A2238;
    stroke-width: 2;
}
.organ-node.is-active { transform: scale(1.08); }

.organ-readout {
    position: relative;
    min-height: 360px;
}
.readout-card {
    position: absolute;
    inset: 0;
    padding: 36px;
    background: linear-gradient(135deg, rgba(26,31,51,0.9), rgba(16,20,36,0.9));
    border: 1px solid rgba(201,169,110,0.18);
    border-radius: var(--r-md);
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.readout-card.is-active {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}
.readout-id {
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.2em;
    color: var(--c-mist);
    margin-bottom: 16px;
}
.readout-card h3 {
    font-family: var(--f-display);
    font-size: 56px;
    font-weight: 500;
    line-height: 1;
    color: var(--c-parchment);
    margin-bottom: 6px;
}
.readout-role {
    font-family: var(--f-mono);
    font-size: 12px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--c-brass);
    margin-bottom: 24px;
}
.readout-body {
    font-size: 16px;
    line-height: 1.7;
    color: var(--c-cool);
    margin-bottom: 28px;
}
.readout-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    list-style: none;
}
.readout-tags li {
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 6px 12px;
    border: 1px solid rgba(201,169,110,0.3);
    border-radius: 999px;
    color: var(--c-brass);
}

/* --------------------------------------------------- OBSERVE / TERMINAL */
.section--observe { padding-bottom: var(--section-y); }
.terminal-frame {
    margin: 0 auto 64px;
    max-width: 1200px;
    border-radius: var(--r-md);
    overflow: hidden;
    border: 1px solid rgba(201,169,110,0.18);
    box-shadow:
        0 30px 80px rgba(0,0,0,0.6),
        0 0 0 1px rgba(123,167,188,0.05) inset;
    background: #07090F;
}
.terminal-chrome {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 18px;
    background: linear-gradient(180deg, #131826, #0E1220);
    border-bottom: 1px solid rgba(201,169,110,0.1);
}
.chrome-dot {
    width: 11px;
    height: 11px;
    border-radius: 50%;
}
.chrome-dot--red { background: #D87B6E; }
.chrome-dot--amber { background: #C9A96E; }
.chrome-dot--green { background: #7BA7BC; }
.chrome-title {
    flex: 1;
    text-align: center;
    font-family: var(--f-mono);
    font-size: 12px;
    color: var(--c-mist);
    letter-spacing: 0.1em;
}
.chrome-status {
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--c-glacier);
    display: inline-flex;
    align-items: center;
}
.terminal-body {
    padding: 24px 28px;
    min-height: 320px;
    max-height: 420px;
    overflow: hidden;
    background:
        radial-gradient(ellipse at 50% 0%, rgba(123,167,188,0.06), transparent 60%),
        #07090F;
}
.terminal-stream {
    font-family: var(--f-mono);
    font-size: 13px;
    line-height: 1.7;
    color: var(--c-cool);
    white-space: pre-wrap;
    word-break: break-word;
    margin: 0;
}
.terminal-stream .ts-prompt { color: var(--c-glacier); }
.terminal-stream .ts-ok { color: #B8D4A8; }
.terminal-stream .ts-warn { color: var(--c-brass); }
.terminal-stream .ts-err { color: var(--c-ember); }
.terminal-stream .ts-dim { color: var(--c-mist); }
.terminal-stream .ts-key { color: var(--c-iris); }
.terminal-stream .cursor {
    display: inline-block;
    width: 8px;
    height: 14px;
    background: var(--c-brass);
    margin-left: 2px;
    animation: blink 1.05s step-end infinite;
    vertical-align: text-bottom;
}
@keyframes blink { 50% { opacity: 0; } }

.observe-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}
.observe-tile {
    padding: 36px 28px;
    background: var(--c-ink);
    border: 1px solid rgba(123,167,188,0.15);
    border-radius: var(--r-md);
    transition: transform 0.4s cubic-bezier(0.2,0.8,0.2,1), border-color 0.3s ease;
}
.observe-tile:hover {
    transform: translateY(-4px);
    border-color: rgba(201,169,110,0.4);
}
.tile-label {
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--c-mist);
    margin-bottom: 18px;
    line-height: 1.5;
}
.tile-label em {
    font-style: italic;
    color: var(--c-brass);
}
.tile-figure {
    font-family: var(--f-display);
    font-size: clamp(40px, 4vw, 64px);
    font-weight: 500;
    line-height: 1;
    color: var(--c-parchment);
    margin-bottom: 14px;
    letter-spacing: -0.02em;
}
.tile-prefix { color: var(--c-brass); margin-right: 4px; }
.tile-unit {
    font-size: 0.5em;
    color: var(--c-glacier);
    margin-left: 4px;
    font-weight: 400;
}
.tile-foot {
    font-size: 13px;
    color: var(--c-cool);
    line-height: 1.5;
}

/* ----------------------------------------------------- MANIFEST */
.section--manifest {
    border-top: 1px solid rgba(201,169,110,0.1);
}
.manifest-wrap {
    max-width: 920px;
    margin: 0 auto;
}
.manifest-list {
    list-style: none;
    margin: 56px 0 36px;
    counter-reset: manifest;
    border-top: 1px solid rgba(201,169,110,0.12);
}
.manifest-list li {
    display: flex;
    gap: 28px;
    align-items: baseline;
    padding: 22px 0;
    border-bottom: 1px solid rgba(201,169,110,0.12);
    font-family: var(--f-display);
    font-size: clamp(20px, 2.4vw, 28px);
    line-height: 1.4;
    color: var(--c-parchment);
    transition: padding-left 0.4s cubic-bezier(0.2,0.8,0.2,1), color 0.3s ease;
}
.manifest-list li:hover {
    padding-left: 16px;
    color: var(--c-cream);
}
.manifest-list li em {
    font-style: italic;
    color: var(--c-brass);
}
.ml-num {
    font-family: var(--f-mono);
    font-size: 12px;
    color: var(--c-brass);
    letter-spacing: 0.15em;
    flex-shrink: 0;
    min-width: 48px;
    padding-top: 6px;
}
.manifest-sign {
    margin-top: 36px;
    font-family: var(--f-display);
    font-style: italic;
    color: var(--c-mist);
    font-size: 18px;
}

/* ----------------------------------------------------- JOIN */
.section--join {
    border-top: 1px solid rgba(201,169,110,0.1);
}
.join-inner {
    display: grid;
    grid-template-columns: 1.05fr 1fr;
    gap: clamp(40px, 5vw, 88px);
    align-items: start;
}
.join-lede {
    margin-top: 32px;
    font-size: 17px;
    line-height: 1.7;
    color: var(--c-cool);
}
.join-points {
    list-style: none;
    margin-top: 32px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.join-points li {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    font-size: 15px;
    line-height: 1.6;
    color: var(--c-cool);
}
.point-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--c-brass);
    margin-top: 9px;
    flex-shrink: 0;
}

.join-form {
    background: linear-gradient(160deg, rgba(26,31,51,0.85), rgba(16,20,36,0.85));
    border: 1px solid rgba(201,169,110,0.2);
    border-radius: var(--r-lg);
    padding: clamp(28px, 3.5vw, 44px);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}
.field {
    display: block;
    margin-bottom: 22px;
}
.field-label {
    display: block;
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--c-brass);
    margin-bottom: 10px;
}
.field input,
.field textarea {
    width: 100%;
    padding: 12px 0;
    background: transparent;
    border: 0;
    border-bottom: 1px solid var(--c-graphite);
    color: var(--c-parchment);
    font-family: var(--f-display);
    font-size: 18px;
    font-weight: 500;
    transition: border-color 0.3s ease;
    resize: vertical;
}
.field input::placeholder,
.field textarea::placeholder {
    color: var(--c-mist);
    font-style: italic;
    font-family: var(--f-display);
}
.field input:focus,
.field textarea:focus {
    border-bottom-color: var(--c-brass);
    outline: 0;
}
.field--area textarea {
    border: 1px solid var(--c-graphite);
    border-radius: var(--r-sm);
    padding: 14px;
    font-size: 15px;
    font-family: var(--f-body);
    font-weight: 300;
}
.field--area textarea:focus {
    border-color: var(--c-brass);
}
.form-status {
    margin-top: 20px;
    min-height: 22px;
    font-family: var(--f-mono);
    font-size: 12px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--c-glacier);
    text-align: center;
    transition: color 0.3s ease;
}
.form-status.is-error { color: var(--c-ember); }
.form-status.is-ok { color: #B8D4A8; }

/* ----------------------------------------------------- FOOTER */
.site-footer {
    border-top: 1px solid rgba(201,169,110,0.12);
    padding: 80px var(--pad-x) 48px;
    background: linear-gradient(180deg, transparent, rgba(0,0,0,0.4));
}
.footer-inner {
    max-width: 1480px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 56px;
    align-items: start;
}
.footer-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    color: var(--c-brass);
}
.footer-brand p {
    font-family: var(--f-display);
    font-style: italic;
    font-size: 18px;
    color: var(--c-parchment);
}
.footer-nav {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.footer-col {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-heading {
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--c-brass);
    margin-bottom: 8px;
}
.footer-col a {
    color: var(--c-cool);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}
.footer-col a:hover { color: var(--c-parchment); }
.footer-fine {
    grid-column: 1 / -1;
    margin-top: 56px;
    padding-top: 32px;
    border-top: 1px solid rgba(201,169,110,0.08);
    font-family: var(--f-mono);
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--c-mist);
    text-align: center;
}

/* ----------------------------------------------------- ANIMATIONS */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.9s cubic-bezier(0.2,0.8,0.2,1), transform 0.9s cubic-bezier(0.2,0.8,0.2,1);
}
.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ----------------------------------------------------- RESPONSIVE */
@media (max-width: 1024px) {
    .organ-stage { grid-template-columns: 1fr; }
    .organ-readout { min-height: 320px; max-width: 600px; margin: 0 auto; }
    .join-inner { grid-template-columns: 1fr; }
    .observe-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-inner { grid-template-columns: 1fr; gap: 32px; }
    .footer-nav { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 720px) {
    .primary-nav { display: none; }
    .nav-toggle { display: flex; }
    .site-header.is-menu-open .primary-nav {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0; right: 0;
        flex-direction: column;
        align-items: flex-start;
        padding: 24px var(--pad-x);
        background: rgba(11,14,26,0.96);
        backdrop-filter: blur(14px);
        border-bottom: 1px solid rgba(201,169,110,0.15);
        gap: 18px;
    }
    .site-header.is-menu-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .site-header.is-menu-open .nav-toggle span:nth-child(2) { opacity: 0; }
    .site-header.is-menu-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
    .hero-orbit { right: -50%; opacity: 0.45; }
    .whole-grid { grid-template-columns: 1fr; }
    .observe-grid { grid-template-columns: 1fr; }
    .footer-nav { grid-template-columns: 1fr; gap: 32px; }
    .title-row--accent { padding-left: 0; }
    .manifest-list li { gap: 16px; }
    .ml-num { min-width: 36px; }
}

@media (prefers-reduced-motion: reduce) {
    .orbit-ring-1, .orbit-ring-2, .orbit-ring-3, .pulse-dot, .cursor { animation: none; }
}