:root {
  --navy: #0a1a5c;
  --deep: #12309e;
  --blue: #2f5bff;
  --sky: #8fb6ff;
  --mist: #bcd8ff;
  --ink: #0b1440;
  --white: #ffffff;
  --muted: rgba(255, 255, 255, 0.72);
  --sans: "Inter Tight", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  --gutter: clamp(16px, 4vw, 56px);
}

*, *::before, *::after { box-sizing: border-box; }

html, body { height: 100%; }

body {
  margin: 0;
  min-height: 100svh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  background: var(--navy);
  color: var(--white);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  overflow-x: hidden;
}

/* ---------- sky ---------- */
.sky {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background:
    radial-gradient(120% 80% at 50% 115%, var(--mist) 0%, rgba(188, 216, 255, 0) 55%),
    linear-gradient(180deg, var(--navy) 0%, var(--deep) 38%, var(--blue) 72%, var(--sky) 100%);
}

.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.55;
  will-change: transform;
}

.glow-a {
  width: 60vmax; height: 60vmax;
  left: -15vmax; top: 10vh;
  background: radial-gradient(circle, #4f7bff 0%, rgba(79, 123, 255, 0) 70%);
  animation: drift-a 22s ease-in-out infinite alternate;
}

.glow-b {
  width: 50vmax; height: 50vmax;
  right: -12vmax; top: -10vh;
  background: radial-gradient(circle, #9fc4ff 0%, rgba(159, 196, 255, 0) 70%);
  opacity: 0.35;
  animation: drift-b 28s ease-in-out infinite alternate;
}

@keyframes drift-a { to { transform: translate(18vw, 8vh) scale(1.1); } }
@keyframes drift-b { to { transform: translate(-14vw, 14vh) scale(0.9); } }

.grain {
  position: absolute;
  inset: 0;
  opacity: 0.12;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

#fluid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1.2s ease;
}
.has-fluid #fluid { opacity: 1; }
.has-fluid .glow { display: none; }

@media (prefers-reduced-motion: reduce) {
  .glow { animation: none; }
}

/* ---------- top / meta ---------- */
.top, .meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px var(--gutter);
}

.mark {
  color: var(--white);
  text-decoration: none;
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.01em;
}
.mark span { color: var(--mist); }
.mark:focus-visible { outline: 2px solid var(--white); outline-offset: 4px; }

.lang {
  display: flex;
  gap: 6px;
  align-items: center;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}
.lang button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 6px 4px;
  cursor: pointer;
  letter-spacing: 0.08em;
}
.lang button[aria-pressed="true"] { color: var(--white); text-decoration: underline; text-underline-offset: 4px; }

.meta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: rgba(11, 20, 64, 0.62);
}

/* ---------- hero ---------- */
.hero {
  align-self: center;
  padding: 0 var(--gutter);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.label {
  display: inline-block;
  margin: 0 0 20px;
  padding: 6px 10px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
}

.title {
  margin: 0;
  font-weight: 500;
  font-size: clamp(64px, 19vw, 260px);
  line-height: 0.92;
  letter-spacing: -0.055em;
}
.title span { color: var(--mist); }

.lead {
  max-width: 42ch;
  margin: 28px 0 36px;
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.5;
  color: var(--muted);
}

.cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 26px;
  border: 0;
  border-radius: 999px;
  background: var(--white);
  color: var(--ink);
  font: 500 15px/1 var(--sans);
  letter-spacing: 0.01em;
  cursor: pointer;
  box-shadow: 0 10px 40px rgba(10, 26, 92, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.cta:hover { transform: translateY(-2px); box-shadow: 0 14px 48px rgba(10, 26, 92, 0.45); }
.cta:hover svg { transform: translateX(3px); }
.cta svg { transition: transform 0.2s ease; }
.cta:focus-visible, .lang button:focus-visible, .close:focus-visible { outline: 2px solid var(--white); outline-offset: 3px; }

/* ---------- modal ---------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: grid;
  place-items: center;
  padding: 16px;
}
.modal[hidden] { display: none; }

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(6, 14, 50, 0.45);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  animation: fade 0.2s ease;
}

.card {
  position: relative;
  width: min(440px, 100%);
  max-height: calc(100svh - 32px);
  overflow-y: auto;
  padding: 32px 28px 28px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.94);
  color: var(--ink);
  color-scheme: light;
  box-shadow: 0 30px 80px rgba(6, 14, 50, 0.45);
  animation: rise 0.25s cubic-bezier(.2, .8, .2, 1);
}

@keyframes fade { from { opacity: 0; } }
@keyframes rise { from { opacity: 0; transform: translateY(12px) scale(0.98); } }
@media (prefers-reduced-motion: reduce) {
  .card, .modal-backdrop { animation: none; }
}

.close {
  position: absolute;
  top: 14px; right: 14px;
  display: grid; place-items: center;
  width: 36px; height: 36px;
  border: 0;
  border-radius: 50%;
  background: rgba(11, 20, 64, 0.06);
  color: var(--ink);
  cursor: pointer;
}
.close:hover { background: rgba(11, 20, 64, 0.12); }
.close:focus-visible { outline-color: var(--blue); }

.label.dark {
  margin-bottom: 14px;
  border-color: rgba(47, 91, 255, 0.3);
  background: rgba(47, 91, 255, 0.06);
  color: var(--blue);
}

.card h2 {
  margin: 0 0 6px;
  font-weight: 500;
  font-size: 26px;
  letter-spacing: -0.02em;
}

.hint {
  margin: 0 0 22px;
  font-size: 15px;
  color: rgba(11, 20, 64, 0.62);
}

form label {
  display: block;
  margin-bottom: 14px;
}
form label > span {
  display: block;
  margin-bottom: 6px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(11, 20, 64, 0.6);
}

input, textarea {
  -webkit-user-select: text;
  user-select: text;
  width: 100%;
  padding: 12px 14px;
  border: 1px solid rgba(11, 20, 64, 0.14);
  border-radius: 10px;
  background: var(--white);
  color: var(--ink);
  font: 16px/1.4 var(--sans);
  caret-color: #2f5bff !important;
  -webkit-text-fill-color: var(--ink);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
textarea { resize: vertical; min-height: 96px; }
input:focus, textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(47, 91, 255, 0.18);
}
input[aria-invalid="true"], textarea[aria-invalid="true"] { border-color: #d6345a; }

.hp {
  position: absolute !important;
  left: -9999px;
  width: 1px; height: 1px;
  overflow: hidden;
}

.turnstile { min-height: 65px; margin: 4px 0 14px; }

.error {
  margin: 0 0 14px;
  padding: 10px 12px;
  border-radius: 8px;
  background: rgba(214, 52, 90, 0.08);
  color: #b0243f;
  font-size: 14px;
}

.cta.solid {
  width: 100%;
  justify-content: center;
  background: var(--blue);
  color: var(--white);
  box-shadow: 0 10px 30px rgba(47, 91, 255, 0.35);
}
.cta.solid:focus-visible { outline-color: var(--blue); }
.cta.solid[disabled] { opacity: 0.6; cursor: wait; transform: none; }

.done { text-align: left; }
.done .cta { margin-top: 8px; }

/* ---------- small screens ---------- */
@media (max-width: 560px) {
  .top, .meta { padding-top: 18px; padding-bottom: 18px; }
  .meta { font-size: 10px; letter-spacing: 0.06em; }
  .label { font-size: 11px; }
  .card { padding: 28px 20px 22px; }
}