/* Vibe Deck - /login page. Standalone shell that reuses the landing tokens
   but does not depend on landing.css (smaller payload, no header/footer). */

:root {
  --vd-bg: #0b0d12;
  --vd-bg-elev: #11141b;
  --vd-bg-elev-2: #181c25;
  --vd-fg: #e6e9ef;
  --vd-fg-muted: #98a1b3;
  --vd-accent: #7df9ff;
  --vd-accent-strong: #38d2db;
  --vd-danger: #ff6b6b;
  --vd-ok: #4ade80;
  --vd-border: #232836;
  --vd-dark-rgb: 11, 13, 18;
  --vd-accent-rgb: 125, 249, 255;
  --vd-white-rgb: 230, 233, 239;
  --login-radius: 22px;
  --login-radius-sm: 12px;
  --login-font: "Aptos Display", "Space Grotesk", "Sora", "Segoe UI Variable", sans-serif;
}

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

html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body.login {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 18% 0%, rgba(var(--vd-accent-rgb), 0.18), transparent 32rem),
    radial-gradient(circle at 88% 12%, rgba(143, 184, 255, 0.12), transparent 28rem),
    var(--vd-bg);
  color: var(--vd-fg);
  font-family: var(--login-font);
  line-height: 1.55;
  display: flex;
  flex-direction: column;
}

.login__noise {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.035;
  mix-blend-mode: screen;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255,255,255,.9) 0 1px, transparent 1px),
    radial-gradient(circle at 70% 60%, rgba(255,255,255,.75) 0 1px, transparent 1px);
  background-size: 23px 23px, 31px 31px;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }

/* Top bar ----------------------------------------------------------------- */
.login__topbar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px clamp(20px, 6vw, 56px);
}

.login__brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--vd-fg);
}

.login__brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(var(--vd-accent-rgb), 0.18), rgba(143, 184, 255, 0.12));
  border: 1px solid rgba(var(--vd-white-rgb), 0.08);
}

.login__brand-text {
  font-weight: 600;
  letter-spacing: 0.01em;
  font-size: 18px;
}

.login__topbar-back {
  font-size: 14px;
  color: var(--vd-fg-muted);
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid rgba(var(--vd-white-rgb), 0.08);
  transition: color 160ms ease, border-color 160ms ease, background 160ms ease;
}
.login__topbar-back:hover {
  color: var(--vd-fg);
  border-color: rgba(var(--vd-accent-rgb), 0.4);
  background: rgba(var(--vd-accent-rgb), 0.06);
}

/* Main / card ------------------------------------------------------------- */
.login__main {
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px clamp(16px, 5vw, 48px) 64px;
}

.login__card {
  width: 100%;
  max-width: 460px;
  background: rgba(var(--vd-dark-rgb), 0.55);
  border: 1px solid rgba(var(--vd-white-rgb), 0.07);
  border-radius: var(--login-radius);
  backdrop-filter: blur(22px);
  padding: clamp(28px, 5vw, 40px);
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.42);
}

.login__title {
  margin: 0 0 6px;
  font-size: clamp(24px, 3.4vw, 30px);
  font-weight: 600;
  letter-spacing: -0.01em;
}
.login__subtitle {
  margin: 0 0 22px;
  color: var(--vd-fg-muted);
  font-size: 14px;
}

/* Tabs -------------------------------------------------------------------- */
.login__tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  padding: 4px;
  background: rgba(var(--vd-white-rgb), 0.04);
  border: 1px solid rgba(var(--vd-white-rgb), 0.06);
  border-radius: 999px;
  margin-bottom: 22px;
}

.login__tab {
  appearance: none;
  background: transparent;
  border: 0;
  color: var(--vd-fg-muted);
  font-weight: 500;
  font-size: 14px;
  padding: 10px 14px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 160ms ease, color 160ms ease;
}
.login__tab:hover { color: var(--vd-fg); }
.login__tab--active {
  background: rgba(var(--vd-accent-rgb), 0.18);
  color: var(--vd-fg);
  box-shadow: inset 0 0 0 1px rgba(var(--vd-accent-rgb), 0.35);
}

/* Form -------------------------------------------------------------------- */
.login__panel {
  display: grid;
  gap: 14px;
}
.login__panel[hidden] { display: none; }

.login__field { display: grid; gap: 6px; }

.login__label {
  font-size: 13px;
  color: var(--vd-fg-muted);
  font-weight: 500;
}
.login__hint {
  font-weight: 400;
  color: var(--vd-fg-muted);
  opacity: 0.8;
  font-size: 12px;
}

.login__input {
  appearance: none;
  width: 100%;
  background: rgba(var(--vd-white-rgb), 0.03);
  color: var(--vd-fg);
  border: 1px solid rgba(var(--vd-white-rgb), 0.08);
  border-radius: var(--login-radius-sm);
  padding: 12px 14px;
  font-size: 15px;
  transition: border-color 160ms ease, background 160ms ease, box-shadow 160ms ease;
}
.login__input:focus {
  outline: none;
  border-color: rgba(var(--vd-accent-rgb), 0.55);
  background: rgba(var(--vd-accent-rgb), 0.04);
  box-shadow: 0 0 0 3px rgba(var(--vd-accent-rgb), 0.18);
}
.login__input:disabled { opacity: 0.5; cursor: not-allowed; }

.login__turnstile {
  min-height: 65px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login__submit {
  appearance: none;
  border: 0;
  cursor: pointer;
  font-weight: 600;
  font-size: 15px;
  padding: 13px 16px;
  border-radius: var(--login-radius-sm);
  color: #04121a;
  background: linear-gradient(135deg, var(--vd-accent) 0%, var(--vd-accent-strong) 100%);
  box-shadow: 0 12px 28px rgba(var(--vd-accent-rgb), 0.22);
  transition: transform 120ms ease, box-shadow 160ms ease, opacity 160ms ease;
}
.login__submit:hover { transform: translateY(-1px); box-shadow: 0 16px 32px rgba(var(--vd-accent-rgb), 0.3); }
.login__submit:active { transform: translateY(0); }
.login__submit:disabled { cursor: progress; opacity: 0.7; transform: none; box-shadow: none; }

.login__error {
  margin: 0;
  padding: 10px 12px;
  border-radius: var(--login-radius-sm);
  background: rgba(255, 107, 107, 0.10);
  border: 1px solid rgba(255, 107, 107, 0.35);
  color: #ffb4b4;
  font-size: 13px;
}
.login__error[hidden] { display: none; }

/* Divider + GitHub button -------------------------------------------------- */
.login__divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 22px 0 14px;
  color: var(--vd-fg-muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.login__divider::before,
.login__divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(var(--vd-white-rgb), 0.08);
}

.login__github {
  appearance: none;
  width: 100%;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 600;
  font-size: 15px;
  padding: 12px 16px;
  border-radius: var(--login-radius-sm);
  background: rgba(var(--vd-white-rgb), 0.05);
  color: var(--vd-fg);
  border: 1px solid rgba(var(--vd-white-rgb), 0.10);
  transition: background 160ms ease, border-color 160ms ease, transform 120ms ease;
}
.login__github:hover {
  background: rgba(var(--vd-white-rgb), 0.08);
  border-color: rgba(var(--vd-white-rgb), 0.18);
  transform: translateY(-1px);
}
.login__github:active { transform: translateY(0); }
.login__github:disabled { cursor: progress; opacity: 0.7; transform: none; }

.login__github-icon { display: block; }

.login__legal {
  margin: 18px 0 0;
  text-align: center;
  font-size: 12px;
  color: var(--vd-fg-muted);
}
.login__legal a { color: var(--vd-accent); }
.login__legal a:hover { text-decoration: underline; }

/* Small screens ----------------------------------------------------------- */
@media (max-width: 520px) {
  .login__topbar { padding: 16px 16px; }
  .login__topbar-back { font-size: 13px; padding: 6px 10px; }
  .login__brand-text { display: none; }
  .login__main { padding: 8px 12px 48px; }
  .login__card { padding: 22px 18px; border-radius: 18px; }
}