:root {
  color-scheme: dark;
  --bg: #0a0f14;
  --panel: rgba(12, 26, 37, 0.9);
  --panel-strong: rgba(15, 35, 48, 0.95);
  --line: rgba(45, 212, 191, 0.2);
  --line-strong: rgba(45, 212, 191, 0.36);
  --text: #f0fdfa;
  --muted: #94a3b8;
  --accent: #0d9488;
  --accent-2: #2dd4bf;
  --good: #35d399;
  --warn: #f8c35b;
  --danger: #fb7185;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.42);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html { min-height: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 12%, rgba(13, 148, 136, 0.18), transparent 28%),
    radial-gradient(circle at 86% 8%, rgba(53, 211, 153, 0.12), transparent 24%),
    linear-gradient(160deg, #0a0f14 0%, #0c1a25 55%, #0a0f14 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(rgba(255,255,255,.026) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,.7), transparent 76%);
}

a { color: inherit; }
button, input { font: inherit; }

.auth-shell {
  width: min(100%, 1120px);
  min-height: 100vh;
  margin: 0 auto;
  padding: clamp(18px, 4vw, 44px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 430px);
  gap: clamp(20px, 4vw, 44px);
  align-items: center;
  position: relative;
  z-index: 1;
}

.auth-copy {
  display: grid;
  gap: 18px;
  max-width: 720px;
}

.auth-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 52px;
  width: fit-content;
}

.brand-mark {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(135deg, #0f766e, #0d9488);
  box-shadow: 0 14px 34px rgba(13, 148, 136, 0.34);
  color: white;
  font-size: 24px;
  font-weight: 900;
}

.auth-brand strong,
.auth-brand small {
  display: block;
}

.auth-brand strong { font-size: 16px; }
.auth-brand small { color: var(--muted); margin-top: 2px; }

.eyebrow {
  color: var(--accent-2);
  text-transform: uppercase;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.08em;
  margin: 0;
}

.auth-copy h1 {
  margin: 0;
  font-size: clamp(38px, 6vw, 72px);
  line-height: 0.98;
  letter-spacing: 0;
  max-width: 760px;
}

.auth-copy p {
  color: var(--muted);
  line-height: 1.7;
  max-width: 680px;
  margin: 0;
}

.auth-status-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 6px;
}

.auth-status {
  min-height: 64px;
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 12px;
  background: rgba(255,255,255,.045);
}

.auth-status span {
  display: block;
  color: var(--accent-2);
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .06em;
}

.auth-status strong {
  display: block;
  margin-top: 6px;
  font-size: 13px;
}

.auth-card {
  border: 1px solid var(--line-strong);
  border-radius: 22px;
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: clamp(20px, 3vw, 28px);
  backdrop-filter: blur(24px);
}

.auth-card h2 {
  margin: 0 0 8px;
  font-size: 26px;
  letter-spacing: 0;
}

.auth-card p {
  color: var(--muted);
  line-height: 1.55;
}

.provider-button {
  width: 100%;
  justify-content: center;
  background: #f8fafc;
  color: #111827;
  border: 1px solid rgba(255,255,255,.12);
}

.google-mark {
  width: 22px;
  height: 22px;
  display: inline-grid;
  place-items: center;
  border-radius: 50%;
  background: white;
  color: #2563eb;
  font-weight: 900;
}

.provider-note {
  margin: 9px 0 0;
  min-height: 20px;
  color: var(--warn);
  font-size: 12px;
  line-height: 1.45;
}

form {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

input {
  min-height: 48px;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(7, 5, 18, 0.78);
  color: var(--text);
  padding: 12px 13px;
}

input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(13, 148, 136, 0.16);
}

.button {
  min-height: 48px;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 16px;
  border: 1px solid transparent;
  font-weight: 900;
  text-decoration: none;
}

.button.primary {
  color: white;
  background: linear-gradient(135deg, var(--accent), #0f766e);
  box-shadow: 0 12px 28px rgba(13, 148, 136, 0.28);
}

.button.ghost {
  color: var(--accent-2);
  background: rgba(13, 148, 136, 0.1);
  border-color: var(--line);
  width: 100%;
}

.button:disabled {
  opacity: 0.62;
  cursor: not-allowed;
  box-shadow: none;
}

.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.divider::before,
.divider::after {
  content: "";
  flex: 1;
  border-top: 1px solid var(--line);
}

.auth-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  margin-top: 16px;
}

.auth-links a {
  color: var(--accent-2);
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  font-weight: 800;
}

.message {
  min-height: 24px;
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.message.success { color: var(--good); }
.message.warning { color: var(--warn); }
.message.error { color: var(--danger); }

body:not([data-auth-ready="true"]) .auth-card {
  opacity: .78;
}

@media (max-width: 760px) {
  body {
    background:
      radial-gradient(circle at 10% 0%, rgba(13, 148, 136, 0.18), transparent 28%),
      linear-gradient(160deg, #0a0f14 0%, #0c1a25 60%, #0a0f14 100%);
  }

  .auth-shell {
    grid-template-columns: 1fr;
    align-items: start;
    padding: calc(18px + env(safe-area-inset-top, 0px)) 14px 22px;
  }

  .auth-copy {
    gap: 12px;
  }

  .auth-copy h1 {
    font-size: 34px;
    line-height: 1.04;
  }

  .auth-copy p {
    font-size: 15px;
  }

  .auth-status-grid {
    grid-template-columns: 1fr;
  }

  .auth-status {
    min-height: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
  }

  .auth-status strong {
    margin: 0;
    text-align: right;
  }

  .auth-card {
    border-radius: 20px;
    padding: 20px;
  }
}

@media (max-width: 360px) {
  .auth-shell { padding-inline: 10px; }
  .auth-copy h1 { font-size: 30px; }
  .auth-card { padding: 16px; }
  .auth-links { display: grid; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

@media (prefers-contrast: more) {
  :root {
    --muted: #e0f2fe;
    --line: rgba(45, 212, 191, 0.42);
    --line-strong: rgba(45, 212, 191, 0.64);
  }

  .auth-card,
  .auth-status,
  input,
  .button {
    border-width: 2px;
  }
}