/* GROWAI Student Portal — Material Design 3 Light Theme */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body { font-family: 'Inter', 'Roboto', system-ui, -apple-system, sans-serif; line-height: 1.5; -webkit-font-smoothing: antialiased; }
img, svg { display: block; max-width: 100%; }
a { text-decoration: none; }
input, button, select, textarea { font-family: inherit; }
button { cursor: pointer; border: none; background: none; }

/* ── M3 Design Tokens ── */
:root {
  --md-bg: #F0F2F5;
  --md-surface: #FFFFFF;
  --md-primary: #6750A4;
  --md-primary-container: #EADDFF;
  --md-on-primary: #FFFFFF;
  --md-on-primary-container: #21005D;
  --md-on-surface: #1D1B20;
  --md-on-surface-variant: #49454F;
  --md-on-surface-muted: #79747E;
  --md-outline: #C4C7C5;
  --md-outline-variant: #E0E2E6;
  --md-error: #B3261E;
  --md-success: #146C2E;
  --md-shadow-1: 0 1px 2px rgba(0,0,0,0.08), 0 1px 3px rgba(0,0,0,0.12);
  --md-shadow-2: 0 1px 3px rgba(0,0,0,0.1), 0 4px 8px rgba(0,0,0,0.08);
  --md-shadow-3: 0 2px 6px rgba(0,0,0,0.1), 0 8px 24px rgba(0,0,0,0.08);
}

/* ── Login Page (M3 Light Theme) ── */
.login-bg {
  background: var(--md-bg);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  position: relative;
  overflow: hidden;
}

.orb { display: none; }

.login-card {
  width: 100%;
  max-width: 440px;
  position: relative;
  z-index: 10;
}

.glass-card {
  background: var(--md-surface);
  border: none;
  border-radius: 28px;
  padding: 32px;
  box-shadow: var(--md-shadow-3);
}

/* Tabs */
.portal-tabs {
  display: flex;
  border-bottom: 1px solid var(--md-outline-variant);
  margin-bottom: 28px;
}
.portal-tab {
  flex: 1;
  text-align: center;
  padding-bottom: 12px;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
  border-bottom: 3px solid transparent;
  color: var(--md-on-surface-muted);
  margin-bottom: -1px;
}
.portal-tab.active {
  color: var(--md-primary);
  border-bottom-color: var(--md-primary);
}
.portal-tab:hover { color: var(--md-on-surface); }

/* Form */
.field-label {
  display: block;
  color: var(--md-on-surface-variant);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1px;
  margin-bottom: 6px;
}
.portal-input {
  width: 100%;
  padding: 14px 16px;
  background: var(--md-surface);
  border: 1px solid var(--md-outline);
  border-radius: 8px;
  font-size: 14px;
  color: var(--md-on-surface);
  outline: none;
  transition: all 0.15s;
  display: block;
}
.portal-input::placeholder { color: var(--md-on-surface-muted); }
.portal-input:focus {
  border-color: var(--md-primary);
  border-width: 2px;
  padding: 13px 15px;
}
.portal-input.error {
  border-color: var(--md-error);
}
.pass-wrap { position: relative; }
.pass-wrap .portal-input { padding-right: 44px; }
.pass-toggle {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--md-on-surface-muted);
  padding: 0;
  transition: color 0.2s;
}
.pass-toggle:hover { color: var(--md-on-surface); }

.btn-primary {
  width: 100%;
  padding: 14px;
  background: var(--md-primary);
  border: none;
  border-radius: 9999px;
  color: var(--md-on-primary);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
  margin-top: 8px;
  letter-spacing: 0.1px;
}
.btn-primary:hover {
  box-shadow: var(--md-shadow-2);
}
.btn-primary:active { transform: scale(0.99); }

.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 24px 0;
}
.divider::before, .divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--md-outline-variant);
}
.divider span { color: var(--md-on-surface-muted); font-size: 12px; font-weight: 500; }

.btn-google {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 12px;
  background: var(--md-surface);
  border: 1px solid var(--md-outline);
  border-radius: 9999px;
  color: var(--md-on-surface);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.15s;
  cursor: pointer;
}
.btn-google:hover {
  background: rgba(103,80,164,0.04);
}

.alert {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 16px;
  border-radius: 12px;
  margin-bottom: 20px;
  font-size: 13px;
}
.alert-error { background: rgba(179,38,30,0.08); border: none; color: var(--md-error); }
.alert-error svg { color: var(--md-error); }
.alert-success { background: rgba(20,108,46,0.08); border: none; color: var(--md-success); }
.alert svg { flex-shrink: 0; margin-top: 1px; }
.forgot-link { font-size: 12px; color: var(--md-primary); float: right; margin-top: 6px; transition: color 0.15s; }
.forgot-link:hover { color: var(--md-on-primary-container); }
.terms-text { text-align: center; font-size: 11px; color: var(--md-on-surface-muted); margin-top: 20px; }
.terms-text a { color: var(--md-on-surface-variant); text-decoration: underline; }
.terms-text a:hover { color: var(--md-primary); }
.support-text { text-align: center; font-size: 12px; color: var(--md-on-surface-muted); margin-top: 20px; }
.support-text a { color: var(--md-primary); }

/* ── Animations ── */
@keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.fade-up { animation: fadeUp 0.35s ease forwards; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
.fade-in { animation: fadeIn 0.4s ease forwards; }

/* Responsive */
@media (max-width: 768px) {
  .glass-card { padding: 24px 20px; border-radius: 20px; }
  .login-bg { padding: 16px; }
}