:root {
  color-scheme: dark;
  --bg: #090e16;
  --surface: #101722;
  --line: #29384a;
  --text: #e9eef5;
  --muted: #9caaba;
  --cyan: #5eead4;
  --amber: #f7b955;
  --red: #fb7185;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { min-height: 100%; }
body { margin: 0; color: var(--text); background: radial-gradient(circle at 82% 5%, rgba(94,234,212,.10), transparent 30rem), radial-gradient(circle at 5% 95%, rgba(104,167,255,.08), transparent 28rem), var(--bg); font: 16px/1.5 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; }
button, input, select { font: inherit; }
.start-page { display: grid; min-height: 100vh; grid-template-columns: minmax(0, 1fr) minmax(420px, 540px); }
.start-intro { display: flex; min-height: 100vh; flex-direction: column; justify-content: space-between; border-right: 1px solid var(--line); padding: clamp(2rem, 5vw, 5rem); }
.brand { display: flex; align-items: center; gap: .8rem; }
.brand-mark { display: grid; width: 2.75rem; height: 2.75rem; place-items: center; border: 1px solid rgba(94,234,212,.55); border-radius: .65rem; color: var(--cyan); background: rgba(94,234,212,.08); font: 800 .9rem/1 ui-monospace, monospace; }
.brand strong { display: block; font-size: .95rem; }
.brand span:last-child { display: block; margin-top: .12rem; color: var(--muted); font-size: .78rem; }
.intro-copy { max-width: 42rem; margin: auto 0; padding: 4rem 0; }
.eyebrow { margin: 0 0 1rem; color: var(--cyan); font-size: .78rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.intro-copy h1 { max-width: 13ch; margin: 0; font-size: clamp(2.5rem, 6vw, 5.8rem); line-height: .98; letter-spacing: -.055em; }
.intro-copy > p:last-of-type { max-width: 34rem; margin: 1.5rem 0 0; color: #bec9d4; font-size: 1.05rem; line-height: 1.7; }
.intro-points { display: flex; flex-wrap: wrap; gap: .65rem; margin-top: 2rem; }
.intro-points span { border: 1px solid var(--line); border-radius: 999px; color: #c9d4df; background: rgba(16,23,34,.75); padding: .5rem .75rem; font-size: .82rem; }
.intro-footer { color: #77889a; font-size: .78rem; }
.start-panel { display: grid; min-height: 100vh; place-items: center; padding: 2rem; background: rgba(12,18,28,.75); }
.start-card { width: min(100%, 27rem); }
.step { display: inline-flex; margin-bottom: 1rem; border-radius: .35rem; color: #092a25; background: var(--cyan); padding: .3rem .55rem; font-size: .72rem; font-weight: 900; letter-spacing: .08em; }
.start-card h2 { margin: 0; font-size: clamp(1.75rem, 4vw, 2.4rem); letter-spacing: -.03em; }
.start-card > p { margin: .65rem 0 1.7rem; color: var(--muted); line-height: 1.55; }
.start-form { display: grid; gap: 1rem; }
.field { display: grid; gap: .45rem; }
.field label { color: #dce5ee; font-size: .88rem; font-weight: 750; }
.field input, .field select { width: 100%; min-height: 3.15rem; border: 1px solid #35465a; border-radius: .55rem; outline: 0; color: #fff; background: var(--surface); padding: .7rem .8rem; }
.field input:focus, .field select:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(94,234,212,.12); }
.form-row { display: grid; grid-template-columns: minmax(0, 1fr) 8rem; gap: .85rem; }
.start-button { min-height: 3.2rem; margin-top: .35rem; border: 1px solid #159c8c; border-radius: .55rem; color: #062722; background: var(--cyan); font-weight: 850; cursor: pointer; }
.start-button:hover:not(:disabled) { background: #7cf4e3; }
.start-button:disabled { opacity: .55; cursor: wait; }
.form-error { margin: 0; border-left: 3px solid var(--red); color: #ffd4db; background: rgba(251,113,133,.08); padding: .7rem .8rem; font-size: .86rem; line-height: 1.45; }
.privacy-note { display: flex; gap: .65rem; margin-top: 1.35rem; color: #8fa0b1; font-size: .78rem; line-height: 1.5; }
.privacy-note span:first-child { color: var(--amber); }
@media (max-width: 860px) {
  .start-page { grid-template-columns: 1fr; }
  .start-intro { min-height: auto; border-right: 0; border-bottom: 1px solid var(--line); padding: 1.5rem; }
  .intro-copy { padding: 3rem 0 2rem; }
  .intro-copy h1 { font-size: clamp(2.5rem, 13vw, 4.5rem); }
  .intro-footer { display: none; }
  .start-panel { min-height: auto; padding: 3rem 1.25rem; }
}
@media (max-width: 480px) { .form-row { grid-template-columns: 1fr; } }
.submitted-page { min-height: 100vh; }
.submitted-page .start-card > p { margin: .65rem 0 0; }