/* lungless.dev — code that breathes through its skin
   Palette: damp moss + slate humus + bone phosphor
   Typography: Inter (body), JetBrains Mono (data) */

:root {
    /* moss / lichen / damp earth */
    --bg: #0c1411;
    --bg-deep: #060a09;
    --bg-soft: #14201c;
    --ink: #d8e3dc;
    --ink-dim: #8aa097;
    --ink-faint: #4a5a55;
    --moss: #3b8a72;
    --moss-bright: #5fbf9e;
    --phosphor: #c8e6a0;
    --rust: #c08660;
    --line: #1d2d28;
    --line-bright: #2c443c;
    --halo: rgba(95, 191, 158, 0.08);

    --font-body: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;
    --max: 1180px;
    --gutter: clamp(20px, 4vw, 64px);
}

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

html, body {
    background: var(--bg);
    color: var(--ink);
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

body {
    min-height: 100vh;
    background:
        radial-gradient(1100px 700px at 80% -10%, rgba(59, 138, 114, 0.12), transparent 60%),
        radial-gradient(900px 700px at -10% 30%, rgba(192, 134, 96, 0.06), transparent 60%),
        var(--bg);
}

::selection { background: var(--moss); color: var(--bg-deep); }

a { color: inherit; text-decoration: none; }

img, svg { display: block; max-width: 100%; }

/* === atmospheric layers === */
.grain {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 999;
    opacity: 0.06;
    mix-blend-mode: overlay;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='200' height='200' filter='url(%23n)' opacity='0.6'/></svg>");
}

.cursor-glow {
    position: fixed;
    width: 380px;
    height: 380px;
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    background: radial-gradient(circle, rgba(95, 191, 158, 0.10), transparent 65%);
    transform: translate(-50%, -50%);
    transition: opacity 0.6s ease;
    opacity: 0;
}
body.cursor-active .cursor-glow { opacity: 1; }

/* === header === */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px var(--gutter);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    background: rgba(12, 20, 17, 0.55);
    border-bottom: 1px solid var(--line);
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: 15px;
    letter-spacing: -0.01em;
}

.brand-text { color: var(--ink); }
.brand-text.small { font-size: 13px; }
.brand-dot { color: var(--moss-bright); }

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.mark-core { fill: var(--moss-bright); }
.mark-ring {
    fill: none;
    stroke: var(--moss);
    stroke-width: 1;
    opacity: 0.6;
    transform-origin: center;
    animation: breath 6s ease-in-out infinite;
}
.mark-ring-outer {
    fill: none;
    stroke: var(--moss);
    stroke-width: 0.8;
    opacity: 0.25;
    transform-origin: center;
    animation: breath 6s ease-in-out infinite;
    animation-delay: -2s;
}

@keyframes breath {
    0%, 100% { transform: scale(1); opacity: var(--start-op, 0.6); }
    50% { transform: scale(1.12); opacity: 0.15; }
}

.primary-nav {
    display: flex;
    gap: 28px;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--ink-dim);
}

.primary-nav a {
    position: relative;
    padding: 4px 0;
    transition: color 0.25s;
}
.primary-nav a::after {
    content: '';
    position: absolute;
    left: 0; right: 0; bottom: -2px;
    height: 1px;
    background: var(--moss-bright);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.primary-nav a:hover { color: var(--ink); }
.primary-nav a:hover::after { transform: scaleX(1); }
.primary-nav a.active { color: var(--moss-bright); }
.primary-nav a.active::after { transform: scaleX(1); background: var(--moss-bright); }

@media (max-width: 720px) {
    .primary-nav { gap: 16px; font-size: 12px; }
    .primary-nav a:nth-child(3) { display: none; }
}

/* === hero === */
.hero {
    position: relative;
    padding: clamp(60px, 10vw, 140px) var(--gutter) clamp(80px, 12vw, 180px);
    max-width: var(--max);
    margin: 0 auto;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 80px);
    align-items: end;
}

@media (max-width: 920px) {
    .hero-grid { grid-template-columns: 1fr; }
}

.kicker {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--moss-bright);
    text-transform: lowercase;
    letter-spacing: 0.16em;
    margin-bottom: 36px;
    display: inline-flex;
    align-items: center;
    gap: 12px;
}
.kicker::before {
    content: '';
    width: 28px;
    height: 1px;
    background: var(--moss-bright);
    display: inline-block;
}

.hero-title {
    font-family: var(--font-body);
    font-weight: 300;
    font-size: clamp(44px, 8.4vw, 116px);
    line-height: 0.96;
    letter-spacing: -0.035em;
    color: var(--ink);
    margin-bottom: 36px;
}

.word {
    position: relative;
    display: inline-block;
    font-style: italic;
    font-weight: 400;
}

.word.breath {
    color: var(--moss-bright);
    animation: word-pulse 5s ease-in-out infinite;
}

.word.skin {
    color: var(--phosphor);
    background-image: linear-gradient(120deg, var(--phosphor), var(--rust));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.word.skin::after {
    content: '';
    position: absolute;
    left: 4%; right: 4%; bottom: 0.04em;
    height: 6px;
    background: linear-gradient(90deg, transparent, var(--moss), transparent);
    filter: blur(8px);
    opacity: 0.5;
}

@keyframes word-pulse {
    0%, 100% { letter-spacing: -0.02em; }
    50% { letter-spacing: 0.01em; }
}

.hero-sub {
    font-size: clamp(16px, 1.5vw, 19px);
    color: var(--ink-dim);
    max-width: 56ch;
    margin-bottom: 40px;
    line-height: 1.65;
}
.hero-sub em {
    font-style: italic;
    color: var(--ink);
    font-family: var(--font-mono);
    font-size: 0.92em;
}

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

.cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 22px;
    font-family: var(--font-mono);
    font-size: 13px;
    border-radius: 999px;
    transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1), background 0.3s, color 0.3s, border-color 0.3s;
    border: 1px solid transparent;
}
.cta.primary {
    background: var(--moss);
    color: var(--bg-deep);
    font-weight: 600;
}
.cta.primary:hover {
    background: var(--moss-bright);
    transform: translateY(-2px);
}
.cta.ghost {
    border-color: var(--line-bright);
    color: var(--ink-dim);
}
.cta.ghost:hover {
    color: var(--ink);
    border-color: var(--moss);
}
.cta .arrow {
    transition: transform 0.3s;
    display: inline-block;
}
.cta:hover .arrow { transform: translateX(4px); }

/* === vitals (hero aside) === */
.hero-aside {
    border: 1px solid var(--line-bright);
    background:
        linear-gradient(180deg, rgba(20, 32, 28, 0.6), rgba(6, 10, 9, 0.4));
    border-radius: 14px;
    padding: 26px;
    font-family: var(--font-mono);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.vitals { display: flex; flex-direction: column; gap: 18px; }

.vital {
    display: grid;
    grid-template-columns: 110px 1fr 70px;
    gap: 14px;
    align-items: center;
    font-size: 11.5px;
}
.vital-label {
    color: var(--ink-dim);
    text-transform: lowercase;
    letter-spacing: 0.05em;
}
.vital-value {
    color: var(--moss-bright);
    text-align: right;
    font-variant-numeric: tabular-nums;
}
.vital-bar {
    height: 4px;
    background: var(--line);
    border-radius: 2px;
    overflow: hidden;
    position: relative;
}
.vital-fill {
    position: absolute;
    inset: 0 100% 0 0;
    background: linear-gradient(90deg, var(--moss), var(--phosphor));
    transition: right 1.4s cubic-bezier(0.4, 0.6, 0.2, 1);
}

.aside-foot {
    margin-top: 22px;
    padding-top: 18px;
    border-top: 1px dashed var(--line-bright);
    font-size: 11px;
    color: var(--ink-faint);
    font-style: italic;
}

/* === scroll cue === */
.scroll-cue {
    margin-top: clamp(60px, 9vw, 140px);
    display: flex;
    align-items: center;
    gap: 14px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--ink-faint);
    text-transform: lowercase;
    letter-spacing: 0.12em;
}
.scroll-cue-line {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, var(--line-bright), transparent);
}

/* === section mark === */
.section-mark {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--moss-bright);
    letter-spacing: 0.18em;
    text-transform: lowercase;
    margin-bottom: 30px;
    padding-left: 20px;
    position: relative;
}
.section-mark::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 12px;
    height: 1px;
    background: var(--moss-bright);
}

.section-title {
    font-family: var(--font-body);
    font-weight: 300;
    font-size: clamp(28px, 4.4vw, 54px);
    letter-spacing: -0.025em;
    line-height: 1.05;
    color: var(--ink);
    margin-bottom: 48px;
}

/* === thesis === */
.thesis {
    padding: clamp(80px, 10vw, 140px) var(--gutter);
    max-width: var(--max);
    margin: 0 auto;
    border-top: 1px solid var(--line);
}

.thesis-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr);
    gap: 32px;
}
.thesis-grid .section-title {
    grid-column: 1 / -1;
    max-width: 18ch;
}
@media (max-width: 920px) { .thesis-grid { grid-template-columns: 1fr; } }

.tenet {
    border-top: 1px solid var(--line-bright);
    padding-top: 24px;
}
.tenet-num {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--moss-bright);
    margin-bottom: 18px;
    letter-spacing: 0.06em;
}
.tenet h3 {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: clamp(18px, 1.8vw, 22px);
    margin-bottom: 14px;
    color: var(--ink);
    letter-spacing: -0.01em;
}
.tenet p {
    color: var(--ink-dim);
    font-size: 15px;
    line-height: 1.7;
}

/* === anatomy === */
.anatomy {
    padding: clamp(80px, 10vw, 140px) var(--gutter);
    max-width: var(--max);
    margin: 0 auto;
    border-top: 1px solid var(--line);
}

.anatomy-stage {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: clamp(40px, 6vw, 96px);
    align-items: center;
}
@media (max-width: 920px) { .anatomy-stage { grid-template-columns: 1fr; } }

.diagram {
    aspect-ratio: 4 / 5;
    max-width: 380px;
    width: 100%;
    margin: 0 auto;
    position: relative;
}
.diagram svg .body { transform-origin: 200px 260px; animation: torso-breath 5.6s ease-in-out infinite; }
.diagram svg .halo { fill: none; stroke: var(--moss); stroke-width: 0.7; opacity: 0.18; transform-origin: 200px 260px; }
.halo.halo-1 { animation: halo 5.6s ease-in-out infinite; }
.halo.halo-2 { animation: halo 5.6s ease-in-out infinite; animation-delay: -0.7s; opacity: 0.13; }
.halo.halo-3 { animation: halo 5.6s ease-in-out infinite; animation-delay: -1.4s; opacity: 0.08; }
.diagram svg .axis { stroke: var(--line-bright); stroke-width: 0.6; stroke-dasharray: 3 4; }
.diagram svg .dot { fill: var(--phosphor); transition: r 0.4s, fill 0.4s; }
.diagram svg .dot.is-active { fill: var(--moss-bright); r: 7; filter: drop-shadow(0 0 8px var(--moss-bright)); }

@keyframes torso-breath {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.04); }
}
@keyframes halo {
    0%, 100% { transform: scale(1); opacity: 0.18; }
    50% { transform: scale(1.08); opacity: 0.04; }
}

.anatomy-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 22px;
}
.anatomy-item {
    display: grid;
    grid-template-columns: 50px 1fr;
    gap: 22px;
    padding: 22px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: rgba(20, 32, 28, 0.3);
    transition: border-color 0.4s, background 0.4s, transform 0.4s;
    cursor: default;
}
.anatomy-item:hover {
    border-color: var(--moss);
    background: rgba(20, 32, 28, 0.6);
    transform: translateX(6px);
}
.anatomy-item.is-focus {
    border-color: var(--moss-bright);
    background: rgba(59, 138, 114, 0.08);
}
.anatomy-num {
    font-family: var(--font-mono);
    font-size: 22px;
    color: var(--moss-bright);
    line-height: 1;
}
.anatomy-item h4 {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 16px;
    color: var(--ink);
    margin-bottom: 6px;
    letter-spacing: -0.005em;
}
.anatomy-item p {
    font-size: 14px;
    color: var(--ink-dim);
    line-height: 1.6;
}
.halo-item .anatomy-num { color: var(--rust); }

/* === field guide === */
.field {
    padding: clamp(80px, 10vw, 140px) var(--gutter);
    max-width: var(--max);
    margin: 0 auto;
    border-top: 1px solid var(--line);
}
.field-intro {
    font-size: 17px;
    color: var(--ink-dim);
    max-width: 56ch;
    margin-top: -28px;
    margin-bottom: 56px;
}
.field-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 22px;
}
.specimen {
    padding: 26px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: linear-gradient(180deg, rgba(20, 32, 28, 0.5), rgba(12, 20, 17, 0.5));
    transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1), border-color 0.4s, background 0.4s;
}
.specimen:hover {
    transform: translateY(-6px);
    border-color: var(--moss);
    background: linear-gradient(180deg, rgba(59, 138, 114, 0.08), rgba(12, 20, 17, 0.5));
}
.specimen-frame {
    aspect-ratio: 1;
    margin-bottom: 22px;
    border-radius: 8px;
    background:
        radial-gradient(circle at 50% 40%, rgba(95, 191, 158, 0.12), transparent 70%),
        var(--bg-deep);
    border: 1px solid var(--line);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.specimen-svg {
    width: 70%;
    height: 70%;
    transition: transform 4s ease-in-out;
}
.specimen:hover .specimen-svg { transform: rotate(-6deg) scale(1.06); }
.creature-fill {
    fill: var(--moss);
    opacity: 0.85;
    transition: fill 0.6s, opacity 0.6s;
}
.specimen:hover .creature-fill { fill: var(--moss-bright); opacity: 1; }
.creature-eye { fill: var(--bg-deep); }
.creature-line { fill: none; stroke: var(--bg-deep); stroke-width: 1; opacity: 0.5; }

.specimen h3 {
    font-family: var(--font-body);
    font-weight: 500;
    font-style: italic;
    font-size: 17px;
    margin-bottom: 4px;
    letter-spacing: -0.01em;
}
.specimen-tag {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--moss-bright);
    margin-bottom: 14px;
    letter-spacing: 0.04em;
}
.specimen-note {
    font-size: 14px;
    color: var(--ink-dim);
    line-height: 1.6;
}
.specimen-note strong {
    color: var(--ink);
    font-weight: 500;
}

/* === manifesto === */
.manifesto {
    padding: clamp(80px, 10vw, 140px) var(--gutter);
    max-width: var(--max);
    margin: 0 auto;
    border-top: 1px solid var(--line);
}
.commitments {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
    max-width: 78ch;
}
.commit {
    display: grid;
    grid-template-columns: 28px 1fr;
    gap: 16px;
    padding: 14px 0;
    border-bottom: 1px dashed var(--line-bright);
    font-size: clamp(15px, 1.5vw, 18px);
    color: var(--ink);
    transition: padding 0.4s, color 0.4s;
}
.commit:hover {
    padding-left: 8px;
    color: var(--moss-bright);
}
.commit span {
    color: var(--moss-bright);
    font-family: var(--font-mono);
}

/* === dispatch === */
.dispatch {
    padding: clamp(80px, 10vw, 140px) var(--gutter) clamp(60px, 8vw, 120px);
    max-width: var(--max);
    margin: 0 auto;
    border-top: 1px solid var(--line);
}
.dispatch-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    gap: clamp(30px, 5vw, 80px);
    align-items: end;
}
@media (max-width: 920px) { .dispatch-grid { grid-template-columns: 1fr; } }

.dispatch-blurb {
    color: var(--ink-dim);
    font-size: 17px;
    max-width: 52ch;
    margin-top: 14px;
    line-height: 1.65;
}
.dispatch-blurb.dim { color: var(--ink-faint); font-style: italic; font-size: 15px; }

.dispatch-form {
    background: rgba(20, 32, 28, 0.5);
    border: 1px solid var(--line-bright);
    border-radius: 14px;
    padding: 28px;
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}
.form-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--ink-dim);
    margin-bottom: 12px;
    letter-spacing: 0.06em;
}
.form-row {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 10px;
    align-items: stretch;
}
input[type="email"] {
    background: var(--bg-deep);
    border: 1px solid var(--line-bright);
    border-radius: 8px;
    padding: 14px 16px;
    color: var(--ink);
    font-family: var(--font-mono);
    font-size: 14px;
    transition: border-color 0.3s, background 0.3s;
    width: 100%;
}
input[type="email"]::placeholder { color: var(--ink-faint); }
input[type="email"]:focus {
    outline: none;
    border-color: var(--moss-bright);
    background: rgba(6, 10, 9, 0.8);
}

.form-submit {
    position: relative;
    background: var(--moss);
    color: var(--bg-deep);
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 13px;
    border: none;
    border-radius: 8px;
    padding: 0 22px;
    cursor: pointer;
    overflow: hidden;
    transition: background 0.3s, transform 0.3s;
    min-width: 130px;
}
.form-submit:hover { background: var(--moss-bright); transform: translateY(-1px); }
.form-submit .submit-default,
.form-submit .submit-sent {
    display: block;
    transition: transform 0.4s cubic-bezier(0.2, 0.8, 0.2, 1), opacity 0.4s;
}
.form-submit .submit-sent {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateY(120%);
    opacity: 0;
}
.form-submit.is-sent .submit-default { transform: translateY(-120%); opacity: 0; }
.form-submit.is-sent .submit-sent { transform: translateY(0); opacity: 1; }

.form-hint {
    margin-top: 14px;
    font-size: 12px;
    color: var(--ink-faint);
    font-family: var(--font-mono);
    line-height: 1.5;
    transition: color 0.4s;
}
.form-hint.is-bad { color: var(--rust); }
.form-hint.is-good { color: var(--moss-bright); }

/* === footer === */
.site-footer {
    border-top: 1px solid var(--line);
    background: var(--bg-deep);
    padding: 48px var(--gutter);
}
.footer-inner {
    max-width: var(--max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 24px;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--ink-faint);
}
@media (max-width: 720px) {
    .footer-inner { grid-template-columns: 1fr; text-align: left; }
}
.footer-brand { display: flex; flex-direction: column; gap: 6px; }
.footer-tag { color: var(--ink-faint); font-size: 11px; }
.footer-meta {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
    justify-content: center;
}
.footer-meta span { color: var(--ink-dim); }
.footer-meta #clockNow { color: var(--moss-bright); font-variant-numeric: tabular-nums; }
.footer-sep { color: var(--ink-faint); }
.footer-colophon {
    text-align: right;
    font-style: italic;
}
@media (max-width: 720px) {
    .footer-meta, .footer-colophon { justify-content: flex-start; text-align: left; }
}

/* === reveal-on-scroll === */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 1.2s cubic-bezier(0.2, 0.8, 0.2, 1), transform 1.2s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.reveal.in { opacity: 1; transform: translateY(0); }