/* ── ELLAH Login Page ───────────────────────────────────────────────── */
:root {
  color-scheme: dark;
  --bg-start: #0b1730;
  --bg-end: #08101f;
  --surface: rgba(17, 31, 56, 0.82);
  --surface-border: rgba(169, 201, 233, 0.16);
  --surface-border-strong: rgba(184, 217, 245, 0.28);
  --text-primary: #f5f9ff;
  --text-secondary: #c3d5ea;
  --text-muted: #89a0bc;
  --accent: #85d4ff;
  --accent-strong: #57b8ff;
  --accent-soft: rgba(133, 212, 255, 0.18);
  --radius-xl: 32px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-card: 0 32px 90px rgba(2, 8, 18, 0.55);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "Sora", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text-primary);
  background:
    radial-gradient(circle at top left, rgba(122, 181, 255, 0.24), transparent 30%),
    radial-gradient(circle at 84% 18%, rgba(97, 212, 255, 0.16), transparent 26%),
    linear-gradient(180deg, var(--bg-start) 0%, var(--bg-end) 100%);
}

/* ── Page shell ── */
.login-page {
  position: relative;
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.login-page__glow {
  position: absolute;
  border-radius: 999px;
  filter: blur(90px);
  opacity: 0.5;
  pointer-events: none;
}
.login-page__glow--left {
  top: 4rem; left: -10rem;
  width: 30rem; height: 30rem;
  background: rgba(88, 147, 255, 0.34);
}
.login-page__glow--right {
  top: 11rem; right: -11rem;
  width: 32rem; height: 32rem;
  background: rgba(67, 210, 255, 0.22);
}

.login-page__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

/* ── Card ── */
.login-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 420px;
  padding: 44px 36px 36px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(24px);
}

/* ── Logo area ── */
.login-card__logo {
  text-align: center;
  margin-bottom: 28px;
}
.login-card__icon {
  width: 52px;
  height: 52px;
  color: var(--accent);
  margin-bottom: 8px;
}
.login-card__brand {
  margin: 0;
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  background: linear-gradient(135deg, #fff, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.login-card__tagline {
  margin: 4px 0 0;
  font-size: 0.82rem;
  color: var(--text-muted);
  font-weight: 400;
}

/* ── Error banner ── */
.login-card__error {
  background: rgba(255, 80, 80, 0.15);
  border: 1px solid rgba(255, 80, 80, 0.35);
  color: #ff9e9e;
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.85rem;
  margin-bottom: 16px;
  text-align: center;
}

/* ── Tabs ── */
.login-card__tabs {
  display: flex;
  gap: 4px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--radius-md);
  padding: 4px;
  margin-bottom: 20px;
}
.login-card__tab {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 10px 0;
  border-radius: calc(var(--radius-md) - 4px);
  cursor: pointer;
  transition: all 0.25s;
}
.login-card__tab--active {
  background: var(--accent-soft);
  color: var(--accent);
}
.login-card__tab:hover:not(.login-card__tab--active) {
  color: var(--text-secondary);
}

/* ── Google button ── */
.login-card__google {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 12px 0;
  background: #fff;
  color: #3c4043;
  font-weight: 600;
  font-size: 0.92rem;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: box-shadow 0.2s, transform 0.15s;
}
.login-card__google:hover {
  box-shadow: 0 4px 20px rgba(0,0,0,0.25);
  transform: translateY(-1px);
}
.login-card__google-icon {
  width: 20px;
  height: 20px;
}

/* ── Divider ── */
.login-card__divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 18px 0;
  color: var(--text-muted);
  font-size: 0.82rem;
}
.login-card__divider::before,
.login-card__divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--surface-border);
}

/* ── Form ── */
.login-card__form { display: flex; flex-direction: column; gap: 14px; }

.login-card__field label {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 5px;
}
.login-card__field input {
  width: 100%;
  padding: 11px 14px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.92rem;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.login-card__field input::placeholder { color: var(--text-muted); }
.login-card__field input:focus {
  border-color: var(--accent-strong);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

/* ── Submit ── */
.login-card__submit {
  margin-top: 4px;
  padding: 13px 0;
  background: linear-gradient(135deg, var(--accent-strong), #3fadff);
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: opacity 0.2s, transform 0.15s;
}
.login-card__submit:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}
.login-card__submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ── Footer ── */
.login-card__footer {
  margin: 20px 0 0;
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ── Spinner ── */
@keyframes ellah-spin { to { transform: rotate(360deg); } }
.login-card__submit--loading::after {
  content: "";
  display: inline-block;
  width: 16px; height: 16px;
  margin-left: 8px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: ellah-spin 0.6s linear infinite;
  vertical-align: middle;
}