:root {
  color-scheme: light dark;
  --bg: #07111f;
  --bg-2: #0c172a;
  --card: rgba(11, 21, 39, 0.82);
  --card-border: rgba(255, 255, 255, 0.12);
  --text: #ecf4ff;
  --muted: #9eb2cd;
  --accent: #8ff7d0;
  --accent-2: #76a9ff;
  --danger: #ff7f86;
  --warning: #ffd66f;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  --radius: 22px;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f3f7fc;
    --bg-2: #dfe9f6;
    --card: rgba(255, 255, 255, 0.78);
    --card-border: rgba(12, 31, 58, 0.12);
    --text: #08111f;
    --muted: #44556f;
    --accent: #0e8a72;
    --accent-2: #2358d6;
    --danger: #b92832;
    --warning: #8a6600;
    --shadow: 0 24px 60px rgba(29, 50, 78, 0.12);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(143, 247, 208, 0.16), transparent 28%),
    radial-gradient(circle at bottom right, rgba(118, 169, 255, 0.18), transparent 34%),
    linear-gradient(135deg, var(--bg), var(--bg-2));
  color: var(--text);
}

body {
  padding: 32px 20px 56px;
}

code, pre {
  font-family: "SFMono-Regular", ui-monospace, Menlo, Consolas, monospace;
}

.page-shell {
  width: min(980px, 100%);
  margin: 0 auto;
}

.hero {
  margin-bottom: 24px;
  padding: 12px 6px 8px;
}

.hero-topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 14px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 22px;
}

.brand-mark {
  width: 144px;
  height: 144px;
  padding: 12px;
  border-radius: 30px;
  background:
    radial-gradient(circle at 30% 25%, rgba(143, 247, 208, 0.20), transparent 45%),
    radial-gradient(circle at 70% 75%, rgba(118, 169, 255, 0.18), transparent 44%),
    linear-gradient(145deg, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.03));
  border: 1px solid var(--card-border);
  box-shadow: 0 20px 54px rgba(0, 0, 0, 0.22);
  display: grid;
  place-items: center;
  flex: 0 0 auto;
}

.brand-logo {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 10px 28px rgba(0, 0, 0, 0.20));
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 10px;
}

.hero h1 {
  margin: 0 0 10px;
  font-size: clamp(2rem, 5vw, 4.6rem);
  line-height: 0.95;
  max-width: 10ch;
}

.hero p {
  margin: 0;
  max-width: 72ch;
  color: var(--muted);
  font-size: 1.02rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  padding: 22px;
}

.compose {
  margin-bottom: 18px;
}

.input-row {
  display: flex;
  gap: 12px;
}

label {
  display: block;
  font-weight: 700;
  margin-bottom: 10px;
}

input[type="text"] {
  flex: 1;
  border-radius: 16px;
  border: 1px solid var(--card-border);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text);
  padding: 16px 18px;
  font-size: 1.04rem;
  outline: none;
}

input[type="text"]:focus {
  border-color: rgba(143, 247, 208, 0.55);
  box-shadow: 0 0 0 4px rgba(143, 247, 208, 0.12);
}

button {
  border: 0;
  border-radius: 16px;
  padding: 0 22px;
  font-size: 1rem;
  font-weight: 800;
  color: #04111a;
  background: linear-gradient(135deg, var(--accent), #d7fff0);
  cursor: pointer;
  min-width: 120px;
}

button.api-button {
  min-width: 84px;
  padding: 0 18px;
  height: 44px;
  align-self: flex-start;
  background: linear-gradient(135deg, rgba(143, 247, 208, 0.2), rgba(118, 169, 255, 0.24));
  color: var(--text);
  border: 1px solid var(--card-border);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.14);
}

button:hover {
  filter: brightness(1.02);
}

.hint {
  margin: 10px 0 0;
  color: var(--muted);
}

.result h2 {
  margin: 8px 0 12px;
  font-size: 1.8rem;
}

.status-line {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 1.2rem;
  font-weight: 800;
  border-radius: 999px;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--card-border);
}

.status-supported .status-badge {
  color: var(--accent);
}

.status-not_supported .status-badge,
.status-no_tls13 .status-badge,
.status-connection_error .status-badge,
.status-timeout .status-badge,
.status-unknown .status-badge {
  color: var(--danger);
}

.status-cert_error .status-badge,
.status-blocked_target .status-badge,
.status-invalid_input .status-badge,
.status-dns_error .status-badge {
  color: var(--warning);
}

.details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 14px 18px;
  margin: 18px 0;
}

.details div {
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--card-border);
  background: rgba(255, 255, 255, 0.04);
}

dt {
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 6px;
}

dd {
  margin: 0;
  word-break: break-word;
}

details {
  border-radius: 18px;
  border: 1px solid var(--card-border);
  background: rgba(255, 255, 255, 0.03);
  padding: 14px 16px;
  margin-top: 16px;
}

summary {
  cursor: pointer;
  font-weight: 700;
}

.probe-grid,
.attempt-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
  margin-top: 12px;
}

.probe-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px 12px;
  margin: 12px 0;
}

.probe-meta div {
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--card-border);
  background: rgba(255, 255, 255, 0.04);
}

pre {
  margin: 0;
  padding: 14px;
  overflow: auto;
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.24);
  border: 1px solid var(--card-border);
  font-size: 0.84rem;
  line-height: 1.45;
}

.warnings {
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid rgba(255, 214, 111, 0.34);
  background: rgba(255, 214, 111, 0.07);
}

.warnings h3,
.attempt h3 {
  margin: 0 0 10px;
}

.warnings ul {
  margin: 0;
  padding-left: 18px;
}

.empty-state {
  text-align: left;
}

.muted {
  color: var(--muted);
}

.api-dialog {
  border: 0;
  padding: 0;
  background: transparent;
  width: min(760px, calc(100vw - 24px));
}

.api-dialog::backdrop {
  background: rgba(2, 8, 18, 0.72);
  backdrop-filter: blur(6px);
}

.api-dialog-card {
  margin: 0;
  border: 1px solid var(--card-border);
  border-radius: 26px;
  background: var(--card);
  color: var(--text);
  box-shadow: var(--shadow);
  padding: 22px;
}

.api-dialog-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}

.api-dialog-header h2 {
  margin: 0 0 8px;
  font-size: 1.4rem;
}

.api-dialog-header p {
  margin: 0;
  color: var(--muted);
}

.api-dialog-close {
  min-width: 0;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  padding: 0;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  font-size: 1.4rem;
  line-height: 1;
}

.api-dialog-body {
  margin-top: 18px;
}

.api-dialog-body p {
  margin: 16px 0 10px;
  color: var(--muted);
}

.api-dialog-body pre {
  white-space: pre-wrap;
  word-break: break-word;
}

.api-note {
  color: var(--muted);
  margin-top: 14px;
}

@media (max-width: 720px) {
  body {
    padding: 16px 12px 28px;
  }

  .hero-topbar {
    flex-direction: column;
  }

  .brand {
    align-items: flex-start;
    gap: 14px;
  }

  .brand-mark {
    width: 108px;
    height: 108px;
  }

  .api-button {
    align-self: flex-end;
  }

  .input-row {
    flex-direction: column;
  }

  button {
    width: 100%;
    min-height: 48px;
  }

  .status-line {
    align-items: flex-start;
    flex-direction: column;
  }
}