:root {
    --bg: #080b10;
    --bg-panel: rgba(15, 23, 31, 0.72);
    --bg-panel-solid: #10171e;
    --text: #dce6ed;
    --text-bright: #f4f7f7;
    --text-dim: #8da0ae;
    --accent: #82ded4;
    --line: rgba(145, 191, 199, 0.28);
    --line-strong: rgba(130, 222, 212, 0.55);
    --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    --display: "Playfair Display", Georgia, serif;
    --sans: "Space Grotesk", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { color-scheme: dark; scroll-behavior: smooth; }

body {
    min-width: 320px;
    min-height: 100vh;
    margin: 0;
    color: var(--text);
    background:
        radial-gradient(circle at 78% 0%, rgba(18, 64, 84, 0.32), transparent 34rem),
        radial-gradient(circle at 10% 80%, rgba(13, 55, 66, 0.2), transparent 30rem),
        var(--bg);
    font-family: var(--sans);
}

body::before {
    position: fixed;
    inset: 0;
    z-index: -1;
    content: "";
    pointer-events: none;
    opacity: 0.24;
    background-image: linear-gradient(rgba(126, 217, 211, 0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(126, 217, 211, 0.035) 1px, transparent 1px);
    background-size: 4rem 4rem;
    mask-image: linear-gradient(to bottom, black, transparent 72%);
}

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

.skip-link {
    position: fixed;
    top: 0.75rem;
    left: 0.75rem;
    z-index: 10;
    padding: 0.65rem 0.85rem;
    color: var(--bg);
    background: var(--accent);
    transform: translateY(-160%);
    transition: transform 160ms ease;
}

.skip-link:focus { transform: translateY(0); }

.shell { width: min(1120px, calc(100% - 3rem)); margin-inline: auto; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 4;
    border-bottom: 1px solid rgba(145, 191, 199, 0.14);
    background: rgba(8, 11, 16, 0.8);
    backdrop-filter: blur(1rem);
}

.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 1.25rem; min-height: 5.5rem; }

.brand { display: inline-flex; align-items: center; gap: 0.72rem; color: var(--text-bright); font: 600 0.88rem/1 var(--mono); letter-spacing: 0.14em; }
.brand-mark { display: grid; width: 2rem; height: 2rem; border: 1px solid var(--line-strong); border-radius: 50%; color: var(--accent); font: 400 1.23rem/1 var(--display); place-items: center; }

.primary-nav { display: flex; align-items: center; justify-content: flex-end; gap: clamp(0.65rem, 1.7vw, 1.5rem); }
.primary-nav a { position: relative; padding: 0.55rem 0; color: var(--text-dim); font: 400 0.62rem/1.3 var(--mono); letter-spacing: 0.04em; transition: color 180ms ease; }
.primary-nav a span { margin-right: 0.35rem; color: var(--accent); font-size: 0.48rem; }
.primary-nav a::after { position: absolute; right: 0; bottom: 0; left: 0; height: 1px; content: ""; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform 220ms ease; }
.primary-nav a:hover, .primary-nav a:focus-visible, .primary-nav a[aria-current="page"] { color: var(--text-bright); }
.primary-nav a:hover::after, .primary-nav a:focus-visible::after, .primary-nav a[aria-current="page"]::after { transform: scaleX(1); }

main { padding: clamp(4rem, 8vw, 7.5rem) 0 4rem; }

.page-hero { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(16rem, 0.55fr); gap: clamp(2rem, 8vw, 8rem); align-items: end; padding-bottom: clamp(3rem, 7vw, 6rem); border-bottom: 1px solid var(--line); }
.eyebrow { margin: 0 0 1.25rem; color: var(--accent); font: 500 0.58rem/1.4 var(--mono); letter-spacing: 0.16em; text-transform: uppercase; }
h1 { max-width: 10ch; margin: 0; color: var(--text-bright); font: 400 clamp(3.2rem, 8.2vw, 7.2rem)/0.91 var(--display); letter-spacing: -0.055em; }
h1 em { color: var(--accent); font-weight: 400; }
.hero-copy { max-width: 31rem; margin: 0; padding-left: 1.1rem; border-left: 1px solid var(--accent); color: var(--text-dim); font-size: clamp(1rem, 1.5vw, 1.16rem); font-weight: 300; line-height: 1.75; }

.section-label { margin: 3.3rem 0 1rem; color: var(--text-dim); font: 500 0.57rem/1.4 var(--mono); letter-spacing: 0.14em; text-transform: uppercase; }
.card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.card-grid--three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.section-card { min-height: 17rem; padding: clamp(1.25rem, 2.5vw, 2rem); border: 1px solid var(--line); background: linear-gradient(145deg, rgba(21, 33, 43, 0.62), rgba(10, 15, 21, 0.68)); transition: border-color 220ms ease, transform 220ms ease, background 220ms ease; }
.section-card-link { display: block; }
.section-card:hover { border-color: var(--line-strong); background: linear-gradient(145deg, rgba(29, 54, 66, 0.7), rgba(10, 15, 21, 0.76)); transform: translateY(-0.2rem); }
.card-index, .card-type { display: block; color: var(--accent); font: 500 0.52rem/1.45 var(--mono); letter-spacing: 0.13em; text-transform: uppercase; }
.card-type { margin-top: 0.35rem; color: var(--text-dim); }
.section-card h2 { max-width: 15ch; margin: 2.4rem 0 1rem; color: var(--text-bright); font: 400 clamp(1.7rem, 2.4vw, 2.25rem)/1.04 var(--display); letter-spacing: -0.035em; }
.section-card p { margin: 0; color: var(--text-dim); font-size: 0.94rem; font-weight: 300; line-height: 1.65; }
.tags { display: flex; flex-wrap: wrap; gap: 0.42rem; margin: 1.55rem 0 0; padding: 0; list-style: none; }
.tags li { padding: 0.38rem 0.48rem; border: 1px solid rgba(145, 191, 199, 0.23); color: var(--text-dim); font: 500 0.5rem/1.2 var(--mono); letter-spacing: 0.06em; }

.step-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.step { display: grid; grid-template-columns: 5.5rem minmax(0, 0.7fr) minmax(0, 1fr); gap: 1rem; align-items: baseline; padding: 1.75rem 0; border-bottom: 1px solid var(--line); }
.step-number { color: var(--accent); font: 500 0.56rem/1.3 var(--mono); letter-spacing: 0.12em; }
.step h2 { margin: 0; color: var(--text-bright); font: 400 clamp(1.55rem, 2.5vw, 2.15rem)/1 var(--display); }
.step p { max-width: 33rem; margin: 0; color: var(--text-dim); font-size: 0.96rem; font-weight: 300; line-height: 1.65; }

.note-panel { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 1.2rem; margin-top: 1rem; padding: 1.35rem; border: 1px solid rgba(130, 222, 212, 0.35); background: rgba(10, 28, 36, 0.46); }
.note-mark { color: var(--accent); font: 400 2rem/0.8 var(--display); }
.note-panel p { margin: 0; color: var(--text-dim); font-size: 0.92rem; font-weight: 300; line-height: 1.65; }

.contact-panel { display: grid; grid-template-columns: minmax(0, 1fr) minmax(14rem, 0.52fr); gap: clamp(1.5rem, 5vw, 4rem); padding: clamp(1.4rem, 4vw, 3.1rem); border: 1px solid var(--line-strong); background: linear-gradient(130deg, rgba(17, 49, 60, 0.65), rgba(10, 15, 21, 0.78)); }
.contact-panel h2 { margin: 0 0 1rem; color: var(--text-bright); font: 400 clamp(2rem, 3.8vw, 3.2rem)/0.98 var(--display); letter-spacing: -0.04em; }
.contact-panel p { max-width: 35rem; margin: 0; color: var(--text-dim); font-weight: 300; line-height: 1.7; }
.contact-status { align-self: end; padding: 1rem; border-left: 1px solid var(--accent); color: var(--text-dim); font: 400 0.62rem/1.65 var(--mono); letter-spacing: 0.03em; }
.action-row { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 2rem; }
.action { display: inline-flex; align-items: center; justify-content: center; min-height: 3rem; padding: 0.75rem 1.15rem; border: 1px solid var(--line); color: var(--text-dim); font: 500 0.63rem/1.2 var(--mono); letter-spacing: 0.07em; transition: color 180ms ease, border-color 180ms ease, background 180ms ease; }
.action:hover, .action:focus-visible { border-color: var(--accent); color: var(--bg); background: var(--accent); }
.action--primary { border-color: var(--accent); color: var(--text-bright); }

.site-footer { padding: 2rem 0 2.7rem; border-top: 1px solid var(--line); }
.footer-inner { display: flex; justify-content: space-between; gap: 1.2rem; color: var(--text-dim); font: 400 0.54rem/1.6 var(--mono); letter-spacing: 0.1em; text-transform: uppercase; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 0.25rem; }

@media (max-width: 820px) {
    .header-inner { align-items: flex-start; flex-direction: column; justify-content: center; padding: 1.1rem 0; }
    .primary-nav { width: 100%; justify-content: flex-start; overflow-x: auto; padding-bottom: 0.1rem; }
    .primary-nav a { flex: 0 0 auto; }
    .page-hero, .contact-panel { grid-template-columns: 1fr; }
    .card-grid--three { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
    .shell { width: min(100% - 2rem, 1120px); }
    main { padding-top: 3.25rem; }
    h1 { max-width: 8ch; }
    .card-grid { grid-template-columns: 1fr; }
    .step { grid-template-columns: 3.7rem 1fr; gap: 0.7rem; }
    .step p { grid-column: 2; }
    .section-card { min-height: 0; }
    .footer-inner { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; }
}