/* The academy's website, in the colours of the app: dark surfaces lit from above, steel accents,
   and the same live background moving slowly behind everything. */
:root {
  --bg: #0B0E13; --bg-2: #0E1116; --surface: #141920; --card-top: #18202A; --raised: #1C232C; --hover: #232B36;
  --hairline: #262E39; --hairline-2: #313B48;
  --text: #E8ECF1; --text2: #A3ADBA; --text3: #8691A0;
  --steel: #8DB2D4; --steel-dim: #33526B; --gain: #57B894; --loss: #D4707A; --warn: #D9A05B;
  --accent: #4F7FB0; --accent-2: #5E8FC2; --on-accent: #F5F8FB;
  --font: Inter, "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "JetBrains Mono", "Cascadia Mono", Consolas, monospace;
  --radius: 14px; --wrap: 1140px;
}

* { box-sizing: border-box; }
html { background: var(--bg); scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body { margin: 0; color: var(--text); font: 16px/1.65 var(--font); background: transparent; min-height: 100vh; overflow-x: clip;
       -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
[hidden] { display: none !important; }
a { color: var(--steel); text-underline-offset: 3px; }
a:hover { color: var(--text); }
::selection { background: rgba(94, 143, 194, 0.35); }
:focus-visible { outline: 2px solid var(--steel); outline-offset: 3px; border-radius: 4px; }

/* The live background sits behind the page; without it, a quiet gradient does. */
/* The glow under the pointer, on any card it is over (set by background.js). */
.spot { position: relative; }
.spot::after { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; opacity: 0; transition: opacity .35s ease;
               background: radial-gradient(380px circle at var(--mx, 50%) var(--my, 50%), rgba(141,178,212,.10), rgba(112,96,196,.05) 40%, transparent 65%); }
.spot:hover::after { opacity: 1; }

/* The headline's light moves slowly across it, and the main button catches it now and then. */
@keyframes shimmer { to { background-position: 200% center; } }
.hero h1 .glow { background-size: 200% auto; animation: shimmer 9s linear infinite; }
.button.primary.large { position: relative; overflow: hidden; }
.button.primary.large::after { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, transparent 35%, rgba(255,255,255,.28) 50%, transparent 65%);
                               transform: translateX(-120%); animation: sweep 5.5s ease-in-out 2s infinite; pointer-events: none; }
@keyframes sweep { 0%, 75% { transform: translateX(-120%); } 100% { transform: translateX(120%); } }

/* Grids come in one after another, not all at once. */
.stagger > * { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; transition-delay: calc(var(--i, 0) * 90ms); }
.stagger.seen > * { opacity: 1; transform: none; }

/* A live practice market beside the first screen: a made-up share, ticking. */
.hero .shot { position: relative; }
.live-market { position: absolute; left: -30px; bottom: 54px; width: 260px; padding: 14px 16px 12px; border-radius: 14px; z-index: 2;
               background: rgba(14,19,26,.92); border: 1px solid var(--hairline-2); box-shadow: 0 18px 40px rgba(0,0,0,.45), 0 0 0 1px rgba(112,96,196,.12);
               backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); animation: float 7s ease-in-out infinite; }
@keyframes float { 50% { transform: translateY(-8px); } }
.live-market .lm-top { display: flex; justify-content: space-between; align-items: center; gap: 8px; font-size: 11px; letter-spacing: .12em; color: var(--text3); }
.live-market .lm-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--gain); box-shadow: 0 0 0 0 rgba(87,184,148,.6); animation: beat 1.8s infinite; display: inline-block; margin-right: 6px; }
@keyframes beat { 70% { box-shadow: 0 0 0 7px rgba(87,184,148,0); } 100% { box-shadow: 0 0 0 0 rgba(87,184,148,0); } }
.live-market .lm-name { font-size: 13px; color: var(--text2); margin-top: 6px; }
.live-market .lm-price { display: flex; align-items: baseline; gap: 10px; font: 600 26px/1.2 var(--mono); letter-spacing: -0.02em; transition: color .4s; }
.live-market .lm-price.up { color: var(--gain); }
.live-market .lm-price.down { color: var(--loss); }
.live-market .lm-change { font: 500 13px var(--mono); }
.live-market canvas { display: block; width: 100%; height: 70px; margin: 6px 0 4px; }
.live-market .lm-note { font-size: 11px; color: var(--text3); }
@media (max-width: 900px) { .live-market { left: 10px; bottom: 44px; width: 220px; } }

@media (prefers-reduced-motion: reduce) {
  .hero h1 .glow, .button.primary.large::after, .live-market, .live-market .lm-dot { animation: none; }
  .stagger > * { opacity: 1; transform: none; transition: none; }
  .spot::after { display: none; }
}

#backdrop { position: fixed; inset: 0; width: 100%; height: 100%; z-index: -1; pointer-events: none;
            background: radial-gradient(1100px 620px at 78% -8%, rgba(79,127,176,.20), transparent 62%),
                        radial-gradient(900px 560px at -8% 28%, rgba(62,143,133,.12), transparent 62%), var(--bg); }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 28px; }

/* ---------- Header ---------- */
header.top { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid transparent; transition: background .25s, border-color .25s; }
header.top.scrolled { background: rgba(11, 14, 19, 0.78); border-bottom-color: var(--hairline); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
header.top .button { white-space: nowrap; }
.label-short { display: none; }
header.top .wrap { display: flex; align-items: center; gap: 28px; height: 72px; }
.brand { display: flex; gap: 11px; align-items: center; text-decoration: none; color: var(--text); flex: none; }
.brand b { display: block; font-size: 18px; letter-spacing: -0.01em; line-height: 1.1; }
.brand small { display: block; font-size: 10px; letter-spacing: 2.4px; color: var(--steel); font-weight: 600; line-height: 1.4; }
.mark { width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center; font-weight: 700; flex: none;
        background: linear-gradient(140deg, #3A6488, var(--accent-2)); color: var(--on-accent); box-shadow: 0 6px 18px rgba(79,127,176,.25); }
nav.links { display: flex; gap: 6px; align-items: center; margin-left: auto; }
nav.links > a { color: var(--text2); text-decoration: none; font-size: 15px; padding: 8px 12px; border-radius: 8px; }
nav.links > a:hover { color: var(--text); background: rgba(255,255,255,.04); }
nav.links > a.button { color: var(--on-accent); margin-left: 6px; }
nav.links .sep { width: 1px; height: 22px; background: var(--hairline-2); margin: 0 6px; }

/* ---------- Buttons ---------- */
.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: 10px; padding: 11px 20px;
          text-decoration: none; font: inherit; font-weight: 600; font-size: 15px; line-height: 1.2; cursor: pointer;
          border: 1px solid var(--hairline-2); background: rgba(28, 35, 44, 0.8); color: var(--text); transition: background .15s, border-color .15s, transform .15s; }
.button:hover { background: var(--hover); border-color: #3B4655; color: var(--text); }
.button:active { transform: translateY(1px); }
.button.primary { background: linear-gradient(180deg, var(--accent-2), var(--accent)); border-color: transparent; color: var(--on-accent);
                  box-shadow: 0 8px 22px rgba(79,127,176,.28), inset 0 1px 0 rgba(255,255,255,.12); }
.button.primary:hover { filter: brightness(1.08); color: var(--on-accent); }
.button.quiet { background: transparent; border-color: transparent; color: var(--steel); padding-left: 4px; padding-right: 4px; }
.button.quiet:hover { color: var(--text); background: transparent; }
.button.large { padding: 14px 24px; font-size: 16px; border-radius: 12px; }
.button[disabled] { opacity: .55; cursor: default; }
button.lang { background: none; border: 1px solid var(--hairline-2); color: var(--text2); border-radius: 8px; padding: 5px 10px; font: inherit; font-size: 13px; cursor: pointer; }
button.lang:hover { color: var(--text); border-color: var(--steel-dim); }

/* ---------- Type ---------- */
.eyebrow { color: var(--steel); font-size: 12.5px; letter-spacing: 0.16em; font-weight: 650; text-transform: uppercase; margin-bottom: 14px; }
h1, h2, h3 { letter-spacing: -0.02em; }
h2 { font-size: clamp(28px, 3.2vw, 38px); line-height: 1.15; margin: 0 0 16px; font-weight: 650; }
h3 { font-size: 18px; margin: 0 0 6px; font-weight: 620; }
.lead { color: var(--text2); font-size: 18px; max-width: 680px; margin: 0 0 28px; }
.small { font-size: 13.5px; color: var(--text2); }
.mono { font-family: var(--mono); }
.error { color: var(--loss); }
.ok { color: var(--gain); }

/* ---------- Hero ---------- */
.hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.08fr); gap: 56px; align-items: center; padding: 72px 0 96px; }
.hero h1 { font-size: clamp(38px, 5vw, 60px); line-height: 1.04; margin: 0 0 22px; font-weight: 680; letter-spacing: -0.035em; }
.hero h1 .glow { background: linear-gradient(100deg, #A9C6E2, #6E9CC8 60%, #7FC4B0); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero .lead { font-size: 19px; margin-bottom: 32px; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.reassure { margin-top: 18px; font-size: 14px; color: var(--text3); }
.shot { position: relative; margin: 0; }
.shot img { display: block; width: 100%; height: auto; border-radius: 14px; border: 1px solid var(--hairline-2);
            box-shadow: 0 40px 90px rgba(0,0,0,.55), 0 0 0 1px rgba(255,255,255,.02), 0 0 120px rgba(79,127,176,.18); }
.shot::before { content: ""; position: absolute; inset: -40px -30px; z-index: -1; border-radius: 40px;
                background: radial-gradient(closest-side, rgba(94,143,194,.22), transparent); }
.shot figcaption { margin-top: 12px; font-size: 13px; color: var(--text3); }

/* ---------- Sections ---------- */
.section { padding: 96px 0; border-top: 1px solid rgba(38, 46, 57, .6); }
.section-head { max-width: 720px; margin-bottom: 48px; }

/* The parts of the course: a numbered list, not a wall of boxes. */
/* The course in four numbers, and the three things it does. */
.figures { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-bottom: 26px; }
.figure { padding: 22px 22px 20px; border-radius: var(--radius); border: 1px solid var(--hairline); position: relative; overflow: hidden;
          background: linear-gradient(180deg, rgba(24,32,42,.85), rgba(20,25,32,.6)); }
.figure::before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px; background: linear-gradient(90deg, transparent, var(--accent-2), transparent); opacity: .7; }
.figure b { display: block; font-size: clamp(32px, 4.2vw, 46px); font-weight: 650; letter-spacing: -0.03em; font-variant-numeric: tabular-nums;
            background: linear-gradient(180deg, #fff, #A9C4DE); -webkit-background-clip: text; background-clip: text; color: transparent; }
.figure span { color: var(--text2); font-size: 15px; }
.pillars { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.pillar { padding: 26px; border-radius: var(--radius); border: 1px solid var(--hairline); background: rgba(20,25,32,.55); transition: border-color .2s, transform .2s; }
.pillar:hover { border-color: var(--steel-dim); transform: translateY(-3px); }
.pillar-no { font: 600 13px/1 var(--mono); color: var(--steel); letter-spacing: .1em; margin-bottom: 18px; }
.pillar h3 { font-size: 21px; margin-bottom: 8px; }
.pillar p { color: var(--text2); margin: 0; }
.outline-note { margin: 24px 0 0; color: var(--text2); }
@media (max-width: 900px) { .figures { grid-template-columns: repeat(2, minmax(0, 1fr)); } .pillars { grid-template-columns: minmax(0, 1fr); } }
@media (prefers-reduced-motion: reduce) { .pillar:hover { transform: none; } }

.parts { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--hairline); }
.parts li { display: grid; grid-template-columns: 76px minmax(0, 1fr) auto; gap: 24px; padding: 26px 4px; border-bottom: 1px solid var(--hairline); align-items: baseline; }
.parts .no { font: 600 15px/1 var(--mono); color: var(--steel); letter-spacing: 0.06em; }
.parts h3 { font-size: 20px; margin-bottom: 6px; }
.parts p { margin: 0; color: var(--text2); max-width: 680px; }
.parts .size { color: var(--text3); font-size: 14px; white-space: nowrap; }

/* Steps: three columns divided by hairlines. */
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.steps > div { padding: 6px 36px 6px 0; }
.steps > div + div { padding-left: 36px; border-left: 1px solid var(--hairline); }
.steps .n { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; margin-bottom: 18px;
            border: 1px solid var(--steel-dim); color: var(--steel); font-weight: 650; background: rgba(79,127,176,.08); }
.steps p { color: var(--text2); margin: 0; }

/* Text beside a picture. */
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 64px; align-items: center; }
.split-text p { color: var(--text2); }

/* What the people do: a two-column list with a quiet rule above each item. */
.facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 56px; }
.facts > div { border-top: 1px solid var(--hairline); padding: 22px 0 30px; }
.facts p { color: var(--text2); margin: 0; }

/* Paying: the one place a box earns its keep. */
.pay { display: grid; grid-template-columns: minmax(0, 420px) minmax(0, 1fr); gap: 64px; align-items: start; }
/* The two ways to take the course, side by side, and what paying means below them. */
.plans { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; max-width: 920px; }
.price-card.group { border-color: rgba(94, 143, 194, .45); }
.price-card [data-group-when] { min-height: 1.5em; }
.pay-note { margin-top: 64px; }
.pay-note .plain { max-width: 760px; }
.price-card { border: 1px solid var(--hairline-2); border-radius: 18px; padding: 32px; background: linear-gradient(180deg, rgba(24,32,42,.92), rgba(20,25,32,.92));
              box-shadow: 0 30px 70px rgba(0,0,0,.35); }
.price-card .what { color: var(--steel); font-weight: 600; font-size: 14px; letter-spacing: .04em; }
.price-card .price { font-size: 40px; font-weight: 680; letter-spacing: -0.03em; margin: 8px 0 2px; }
.price-card .price.pending { font-size: 22px; font-weight: 600; color: var(--text2); }
.price-card ul { list-style: none; padding: 0; margin: 24px 0 28px; }
.price-card li { padding: 9px 0 9px 28px; position: relative; color: var(--text2); border-top: 1px solid rgba(38,46,57,.7); }
.price-card li::before { content: ""; position: absolute; left: 2px; top: 17px; width: 12px; height: 7px; border-left: 2px solid var(--gain); border-bottom: 2px solid var(--gain); transform: rotate(-45deg); }
.price-card .button { width: 100%; }
.plain ol { margin: 0 0 8px; padding: 0; list-style: none; counter-reset: plain; }
.plain ol li { counter-increment: plain; position: relative; padding: 0 0 22px 46px; color: var(--text2); }
.plain ol li::before { content: counter(plain); position: absolute; left: 0; top: 0; width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center;
                       font-size: 13px; font-weight: 650; color: var(--steel); border: 1px solid var(--steel-dim); }
.plain ol li b { color: var(--text); display: block; margin-bottom: 2px; }

/* Questions people ask. */
.faq { max-width: 820px; }
.faq details { border-bottom: 1px solid var(--hairline); }
.faq summary { cursor: pointer; list-style: none; padding: 22px 40px 22px 0; font-size: 18px; font-weight: 600; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: ""; position: absolute; right: 8px; top: 30px; width: 9px; height: 9px; border-right: 2px solid var(--steel); border-bottom: 2px solid var(--steel);
                      transform: rotate(45deg); transition: transform .2s; }
.faq details[open] summary::after { transform: rotate(-135deg); top: 34px; }
.faq details p { color: var(--text2); margin: -6px 0 24px; max-width: 720px; }

/* The closing call, and the risk said plainly. */
.closing { text-align: center; padding: 104px 0; }
.closing h2 { max-width: 760px; margin: 0 auto 16px; }
.closing .lead { margin: 0 auto 32px; }
.closing .actions { justify-content: center; }
.risk { border-left: 3px solid var(--warn); padding: 14px 20px; background: rgba(217,160,91,.06); border-radius: 0 12px 12px 0; color: var(--text2); max-width: 900px; font-size: 15px; margin: 0 0 72px; }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--hairline); padding: 56px 0 40px; color: var(--text2); font-size: 14.5px; background: rgba(11,14,19,.6); }
footer .cols { display: grid; grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr)); gap: 40px; }
footer h4 { margin: 0 0 12px; font-size: 13px; letter-spacing: .12em; text-transform: uppercase; color: var(--text3); font-weight: 650; }
footer ul { list-style: none; padding: 0; margin: 0; }
footer li { margin: 0 0 8px; }
footer a { color: var(--text2); text-decoration: none; }
footer a:hover { color: var(--text); }
footer .about p { margin: 14px 0 0; max-width: 340px; }
footer .company { margin-top: 40px; padding-top: 20px; border-top: 1px solid rgba(38,46,57,.6); font-size: 13px; color: var(--text3); }
footer .ai-note { margin: 8px 0 0; font-size: 12px; color: var(--text3); opacity: .85; }

/* ---------- Pages with a form or a document ---------- */
.page-head { padding: 64px 0 32px; max-width: 760px; }
.page-head h1 { font-size: clamp(32px, 4vw, 46px); line-height: 1.1; margin: 0 0 14px; font-weight: 680; letter-spacing: -0.03em; }
.card { background: linear-gradient(180deg, rgba(24,32,42,.9), rgba(20,25,32,.9)); border: 1px solid var(--hairline); border-radius: var(--radius); padding: 22px 24px; }
.card h3 { margin: 0 0 6px; font-size: 16px; }
.card p { margin: 0; color: var(--text2); font-size: 14.5px; }
form.card { display: flex; flex-direction: column; gap: 16px; padding: 30px; }
label { display: flex; flex-direction: column; gap: 6px; font-size: 13.5px; color: var(--text2); font-weight: 500; }
label.check { flex-direction: row; gap: 12px; align-items: flex-start; color: var(--text); font-size: 14.5px; font-weight: 400; line-height: 1.5; }
label.check input { margin-top: 4px; accent-color: var(--accent-2); width: 16px; height: 16px; flex: none; }
input, textarea, select { background: rgba(10, 14, 19, .85); color: var(--text); border: 1px solid var(--hairline-2); border-radius: 10px; padding: 11px 13px; font: inherit; }
input:focus, textarea:focus { outline: none; border-color: var(--steel); box-shadow: 0 0 0 3px rgba(94,143,194,.18); }
.note { border-left: 3px solid var(--warn); padding: 12px 16px; background: rgba(217,160,91,.07); border-radius: 0 10px 10px 0; color: var(--text2); }

/* Creating an account: what it gives on the left, the form on the right. */
.join { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 460px); gap: 72px; align-items: start; padding: 56px 0 96px; }
.join h1 { font-size: clamp(32px, 4vw, 46px); line-height: 1.08; margin: 0 0 18px; font-weight: 680; letter-spacing: -0.03em; }
.join ul { list-style: none; padding: 0; margin: 28px 0 0; }
.join li { padding: 14px 0 14px 34px; position: relative; border-top: 1px solid var(--hairline); color: var(--text2); }
.join li b { color: var(--text); display: block; }
.join li::before { content: ""; position: absolute; left: 4px; top: 21px; width: 12px; height: 7px; border-left: 2px solid var(--steel); border-bottom: 2px solid var(--steel); transform: rotate(-45deg); }

/* The payment page and the legal texts: a readable column. */
.doc { max-width: 760px; padding-bottom: 96px; }
.doc h2 { font-size: 24px; margin: 48px 0 12px; }
.doc p, .doc li { color: var(--text2); }
.doc strong { color: var(--text); }
.doc .summary { border: 1px solid var(--hairline-2); border-radius: 16px; padding: 24px 28px; background: rgba(20,25,32,.75); }
.doc .summary p { margin: 6px 0; }
.legal { max-width: 760px; padding-bottom: 72px; }
.legal h1 { font-size: 36px; margin: 0 0 6px; }
.legal h2 { font-size: 21px; margin: 36px 0 8px; }
.legal h3 { font-size: 16px; margin: 22px 0 4px; }
.legal p, .legal li { color: var(--text2); }
.legal strong { color: var(--text); }
.legal ul { padding-left: 22px; }
.diploma { text-align: center; padding: 40px; }
.diploma .name { font-size: 34px; font-weight: 600; margin: 10px 0; }

/* Things that appear as the page is read. */
.rise { opacity: 0; transform: translateY(14px); transition: opacity .7s ease, transform .7s ease; }
.rise.seen { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .rise { opacity: 1; transform: none; transition: none; } }

/* ---------- Narrow screens ---------- */
@media (max-width: 980px) {
  .hero, .split, .pay, .join, .plans { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .hero { padding: 44px 0 64px; }
  .steps { grid-template-columns: minmax(0, 1fr); }
  .steps > div, .steps > div + div { padding: 22px 0; border-left: none; border-top: 1px solid var(--hairline); }
  .facts { grid-template-columns: minmax(0, 1fr); }
  footer .cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  nav.links > a.wide { display: none; }
  .shot::before { inset: -24px -12px; }
}
@media (max-width: 620px) {
  .wrap { padding: 0 18px; }
  header.top .wrap { gap: 12px; height: 64px; }
  nav.links > a.button { padding: 9px 12px; font-size: 14px; }
  nav.links .sep, nav.links > a.narrow-hide { display: none; }
  .section { padding: 64px 0; }
  .parts li { grid-template-columns: 44px minmax(0, 1fr); gap: 14px; }
  .parts .size { grid-column: 2; }
  .lead, .hero .lead { font-size: 17px; }
  footer .cols { grid-template-columns: minmax(0, 1fr); }
  .price-card { padding: 24px; }
}
.doc .after, .card .after { margin-top: 24px; }
@media (max-width: 520px) {
  header.top .label-long { display: none; }
  header.top .label-short { display: inline; }
}

/* The programme as a night sky (sky.js): the same constellations as the app's Home. */
.sky { position: relative; height: 230px; }
.sky canvas { display: block; width: 100%; height: 100%; }
.sky-tip { position: absolute; z-index: 5; width: 240px; padding: 9px 12px; border-radius: 10px; font-size: 12.5px; line-height: 1.45; color: var(--text);
           background: rgba(14,19,26,.94); border: 1px solid var(--hairline-2); box-shadow: 0 12px 30px rgba(0,0,0,.45); pointer-events: none;
           backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.sky-band { margin: 34px 0 10px; padding: 18px 12px 16px; border-radius: 18px; border: 1px solid var(--hairline);
            background: radial-gradient(120% 140% at 50% 0%, rgba(79,127,176,.10), rgba(11,14,19,.0) 60%), linear-gradient(180deg, rgba(14,19,26,.6), rgba(11,14,19,.3)); }
.sky-band figcaption { text-align: center; color: var(--text2); font-size: 14px; max-width: 620px; margin: 6px auto 0; }
@media (max-width: 760px) { .sky { height: 380px; } }

/* Cards answer the pointer: a lift and a lighter edge, never a jump. */
.card { transition: border-color .2s ease, box-shadow .25s ease, transform .25s ease; }
a.card:hover, .card.part-tile:hover, .price-card:hover { border-color: var(--hairline-2); box-shadow: 0 14px 34px rgba(0,0,0,.32), 0 0 0 1px rgba(141,178,212,.08); transform: translateY(-2px); }
.button { transition: background-color .2s ease, border-color .2s ease, box-shadow .2s ease, transform .12s ease, color .2s ease; }
.button:active { transform: translateY(1px); }
.button.primary:hover { box-shadow: 0 8px 22px rgba(79,127,176,.35); }
.button[disabled], .button[aria-disabled="true"] { cursor: not-allowed; filter: saturate(.55); opacity: .72; box-shadow: none; }
@media (prefers-reduced-motion: reduce) { .card, .button { transition: none; } a.card:hover, .card.part-tile:hover, .price-card:hover { transform: none; } }

/* A file to choose, in the site's own look rather than the browser's grey button. */
input[type="file"] { color: var(--text2); font: inherit; font-size: 14px; }
input[type="file"]::file-selector-button { margin-right: 12px; padding: 8px 14px; border-radius: 9px; border: 1px solid var(--hairline-2); cursor: pointer;
  background: var(--raised); color: var(--text); font: 600 13.5px var(--font); transition: background-color .2s ease, border-color .2s ease; }
input[type="file"]::file-selector-button:hover { background: var(--hover); border-color: var(--steel-dim); }

/* An upload's progress: a thin steel bar. */
progress.upload { appearance: none; -webkit-appearance: none; width: 180px; height: 6px; border: 0; border-radius: 3px; background: var(--hairline); overflow: hidden; }
progress.upload::-webkit-progress-bar { background: var(--hairline); border-radius: 3px; }
progress.upload::-webkit-progress-value { background: linear-gradient(90deg, var(--accent), var(--steel)); border-radius: 3px; transition: width .2s ease; }
progress.upload::-moz-progress-bar { background: linear-gradient(90deg, var(--accent), var(--steel)); border-radius: 3px; }

/* A long reading page with its contents beside it, on a wide screen. */
@media (min-width: 1100px) {
  main.with-toc { display: grid; grid-template-columns: minmax(0, 760px) 230px; column-gap: 72px; align-items: start; }
  main.with-toc > :not(.toc) { grid-column: 1; }
  main.with-toc > .toc { grid-column: 2; grid-row: 1 / span 3; position: sticky; top: 96px; margin-top: 120px; }
}
.toc { display: none; flex-direction: column; gap: 2px; padding-left: 14px; border-left: 1px solid var(--hairline-2); }
@media (min-width: 1100px) { .toc { display: flex; } }
.toc-title { font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--text3); font-weight: 650; margin-bottom: 8px; }
.toc a { color: var(--text2); text-decoration: none; font-size: 13.5px; line-height: 1.4; padding: 5px 0 5px 10px; margin-left: -15px; border-left: 2px solid transparent; transition: color .2s ease, border-color .2s ease; }
.toc a:hover { color: var(--text); }
.toc a.here { color: var(--text); border-left-color: var(--steel); }
:target { scroll-margin-top: 90px; }

/* The verify page: the form, and beside it a seal drawn in the programme's colours, slowly turning. */
@media (min-width: 980px) {
  main.verify-page { display: grid; grid-template-columns: minmax(0, 1fr) 300px; column-gap: 64px; align-items: center; }
  main.verify-page > .page-head, main.verify-page > .doc { grid-column: 1; }
  main.verify-page > .seal-art { grid-column: 2; grid-row: 1 / span 2; }
}
.seal-art { display: none; }
@media (min-width: 980px) { .seal-art { display: block; } }
.seal-art svg { width: 100%; height: auto; display: block; filter: drop-shadow(0 20px 40px rgba(0,0,0,.4)); }
.seal-turn { transform-origin: 120px 120px; animation: seal-turn 60s linear infinite; }
@keyframes seal-turn { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .seal-turn { animation: none; } }