/* file: /css/frontdoor.css */

:root {
  --fd-bg: #050811;
  --fd-card: #101320;
  --fd-card2: #191d2b;
  --fd-line: #282d40;
  --fd-text: #f5f5ff;
  --fd-muted: #a6a9c4;
  --fd-accent: #ffb640;
  --fd-accent2: #3b82ff;
  --fd-danger: #e05252;
}

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

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

.fd-body {
  min-height: 100vh;
  background: radial-gradient(circle at top, #1a2140 0, #050811 55%);
  color: var(--fd-text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.fd-main {
  width: 100%;
  max-width: 480px;
}

.fd-card {
  background: linear-gradient(145deg, var(--fd-card), var(--fd-card2));
  border-radius: 16px;
  border: 1px solid var(--fd-line);
  box-shadow:
    0 18px 35px rgba(0,0,0,0.5),
    0 0 0 1px rgba(255,255,255,0.02);
  padding: 20px 18px 18px;
}

.fd-header {
  text-align: center;
  margin-bottom: 12px;
}

.fd-header h1 {
  font-size: 1.6rem;
  margin: 0 0 4px;
  letter-spacing: 0.04em;
}

.fd-tagline {
  margin: 0;
  font-size: 0.9rem;
  color: var(--fd-muted);
}

.fd-tabs {
  display: flex;
  gap: 8px;
  margin: 14px 0 8px;
}

.fd-tab-btn {
  flex: 1;
  border-radius: 999px;
  border: 1px solid var(--fd-line);
  background: #15192b;
  color: var(--fd-muted);
  padding: 8px 10px;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background .15s ease, color .15s ease, border-color .15s ease, transform .05s ease;
}

.fd-tab-btn.is-active {
  background: var(--fd-accent2);
  border-color: var(--fd-accent2);
  color: #fff;
  transform: translateY(-1px);
}

.fd-tab-btn:active {
  transform: translateY(0);
}

.fd-msg {
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 0.9rem;
  margin-bottom: 8px;
}

.fd-msg--error {
  background: rgba(224,82,82,0.15);
  border: 1px solid rgba(224,82,82,0.5);
  color: #ffd9d9;
}

.fd-msg--info {
  background: rgba(59,130,255,0.14);
  border: 1px solid rgba(59,130,255,0.45);
  color: #dce7ff;
}

.fd-panel {
  display: none;
  margin-top: 4px;
}

.fd-panel.is-visible {
  display: block;
}

.fd-field {
  display: block;
  margin-bottom: 10px;
}

.fd-label {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 3px;
}

.fd-field input {
  width: 100%;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--fd-line);
  background: rgba(6,9,20,0.9);
  color: var(--fd-text);
  font-size: 0.95rem;
  outline: none;
}

.fd-field input:focus {
  border-color: var(--fd-accent2);
  box-shadow: 0 0 0 1px rgba(59,130,255,0.6);
}

.fd-help {
  font-size: 0.78rem;
  color: var(--fd-muted);
  margin-top: 4px;
}

.fd-big-btn {
  width: 100%;
  border-radius: 999px;
  border: none;
  margin-top: 6px;
  padding: 10px 12px;
  font-size: 1rem;
  font-weight: 600;
  background: linear-gradient(135deg, var(--fd-accent), #ff7a3c);
  color: #1b1004;
  cursor: pointer;
  box-shadow: 0 8px 16px rgba(0,0,0,0.45);
  transition: transform .05s ease, box-shadow .1s ease, filter .1s ease;
}

.fd-big-btn:hover {
  filter: brightness(1.05);
}

.fd-big-btn:active {
  transform: translateY(1px);
  box-shadow: 0 4px 10px rgba(0,0,0,0.5);
}

.fd-link-btn {
  margin-top: 6px;
  border: none;
  background: transparent;
  color: var(--fd-muted);
  font-size: 0.85rem;
  text-decoration: underline;
  cursor: pointer;
  padding: 0;
}

.fd-footer {
  margin-top: 12px;
  border-top: 1px solid rgba(255,255,255,0.03);
  padding-top: 8px;
}

.fd-small {
  font-size: 0.75rem;
  color: var(--fd-muted);
}

/* Mobile / iPad tweaks */
@media (max-width: 600px) {
  .fd-card {
    padding: 18px 14px 14px;
  }
  .fd-header h1 {
    font-size: 1.4rem;
  }
}