:root {
  --bg: #f4f7fb;
  --bg2: #ffffff;
  --panel: rgba(255, 255, 255, 0.9);
  --stroke: rgba(15, 23, 42, 0.08);
  --text: #0f172a;
  --muted: #64748b;
  --accent: #2563eb;
  --accent2: #0ea5e9;
  --good: #16a34a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(37, 99, 235, 0.08), transparent 22%),
    radial-gradient(circle at bottom left, rgba(14, 165, 233, 0.10), transparent 28%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px;
}

.hero {
  width: min(1180px, 100%);
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: center;
}

.hero-copy h1 {
  margin: 14px 0 14px;
  font-size: clamp(2.3rem, 5vw, 4.8rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.pill {
  display: inline-flex;
  padding: 10px 14px;
  border: 1px solid rgba(37, 99, 235, 0.14);
  border-radius: 999px;
  color: var(--accent);
  background: rgba(37, 99, 235, 0.06);
  letter-spacing: 0.03em;
  font-size: 0.9rem;
}

.lead {
  max-width: 58ch;
  color: var(--muted);
  line-height: 1.9;
  font-size: 1.05rem;
}

.support-box {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 26px 0;
}

.support-box > div,
.hint-card,
.panel {
  border: 1px solid var(--stroke);
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: 0 16px 45px rgba(15, 23, 42, 0.08);
}

.support-box > div {
  padding: 16px 18px;
  border-radius: 18px;
}

.support-box strong {
  display: block;
  color: var(--good);
  margin-bottom: 4px;
}

.support-box span,
.subtle,
.hint-card p {
  color: var(--muted);
}

.panel {
  border-radius: 28px;
  padding: 24px;
}

.panel-top {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #475569;
  margin-bottom: 18px;
  font-weight: 700;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 0 0 6px rgba(37, 99, 235, 0.08);
}

.form {
  display: grid;
  gap: 14px;
}

label {
  font-weight: 700;
  color: #0f172a;
}

input {
  width: 100%;
  padding: 16px 18px;
  border-radius: 16px;
  border: 1px solid var(--stroke);
  background: #fff;
  color: var(--text);
  font-size: 1rem;
  outline: none;
}

input::placeholder {
  color: #94a3b8;
}

input:focus {
  border-color: rgba(37, 99, 235, 0.35);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.08);
}

button {
  margin-top: 4px;
  padding: 15px 20px;
  border: 0;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  font-weight: 800;
  font-size: 1rem;
  cursor: pointer;
  box-shadow: 0 14px 30px rgba(37, 99, 235, 0.18);
}

.alert {
  margin-bottom: 16px;
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(248, 113, 113, 0.08);
  border: 1px solid rgba(248, 113, 113, 0.2);
  color: #b91c1c;
}

.hint-card {
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: 18px;
}

.hint-card strong {
  display: block;
  margin-bottom: 8px;
  color: #0f172a;
}

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .support-box { grid-template-columns: 1fr; }
  .panel { padding: 18px; }
}