/* ── Brand tokens ──────────────────────────────────────────────── */
:root {
  --color-navy: #1B2A4A;
  --color-navy-light: #243656;
  --color-orange: #E8612D;
  --color-orange-hover: #D4531F;
  --color-white: #FFFFFF;
  --color-off-white: #F8F9FA;
  --color-gray-100: #F1F3F5;
  --color-gray-200: #E9ECEF;
  --color-gray-400: #ADB5BD;
  --color-gray-600: #6C757D;
  --color-gray-800: #343A40;
  --color-black: #212529;
  --color-success: #2E7D32;
  --color-error: #C62828;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-lg: 0 8px 24px rgba(27, 42, 74, 0.12);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --duration: 200ms;
}

/* ── Reset ────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: var(--font-body);
  background: var(--color-off-white);
  color: var(--color-gray-800);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}
a { color: var(--color-orange); text-decoration: none; }
a:hover { color: var(--color-orange-hover); text-decoration: underline; }

/* ── Card ─────────────────────────────────────────────────────── */
.auth-card {
  width: 100%;
  max-width: 420px;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 2rem 1.5rem;
  text-align: center;
}
.auth-logo {
  width: 100%;
  height: auto;
  margin-bottom: 1.5rem;
}
.auth-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 0.5rem;
}
.auth-subtitle {
  font-size: 0.9375rem;
  color: var(--color-gray-600);
  margin-bottom: 2rem;
  line-height: 1.5;
}

/* ── Messages ─────────────────────────────────────────────────── */
.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
  text-align: left;
}
.alert-error {
  background: #FFEBEE;
  color: var(--color-error);
  border: 1px solid #EF9A9A;
}
.alert-success {
  background: #E8F5E9;
  color: var(--color-success);
  border: 1px solid #A5D6A7;
}

/* ── Form ─────────────────────────────────────────────────────── */
.form-group {
  margin-bottom: 1rem;
  text-align: left;
}
.form-group label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-gray-800);
  margin-bottom: 0.375rem;
}
.form-group input {
  width: 100%;
  padding: 0.625rem 0.75rem;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-family: var(--font-body);
  transition: border-color var(--duration) var(--ease-out);
}
.form-group input:focus {
  outline: none;
  border-color: var(--color-orange);
  box-shadow: 0 0 0 3px rgba(232, 97, 45, 0.15);
}
.form-group input[readonly] {
  background: var(--color-gray-100);
  color: var(--color-gray-600);
}

/* ── Buttons ──────────────────────────────────────────────────── */
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer;
  transition: background var(--duration) var(--ease-out),
              box-shadow var(--duration) var(--ease-out);
  border: none;
}
.btn-primary {
  background: var(--color-orange);
  color: var(--color-white);
}
.btn-primary:hover {
  background: var(--color-orange-hover);
}
.btn-google {
  background: var(--color-white);
  color: var(--color-gray-800);
  border: 1px solid var(--color-gray-200);
}
.btn-google:hover {
  background: var(--color-gray-100);
  box-shadow: 0 1px 2px rgba(27, 42, 74, 0.06);
}
.btn-apple {
  background: var(--color-black);
  color: var(--color-white);
  border: 1px solid var(--color-black);
}
.btn-apple:hover { background: #333; }

.btn-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.btn-group {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

/* ── Divider ──────────────────────────────────────────────────── */
.divider {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin: 1.5rem 0;
  color: var(--color-gray-400);
  font-size: 0.8125rem;
}
.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-gray-200);
}

/* ── Footer text ──────────────────────────────────────────────── */
.auth-footer {
  font-size: 0.8125rem;
  color: var(--color-gray-400);
  margin-top: 1.5rem;
  line-height: 1.5;
}