@import url('instructor.css');

/* ══════════════════════ AUTH PAGES ══════════════════════ */

#auth-view {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, #F0F7FF 0%, #fff 55%, #EEF4FF 100%);
  position: relative;
  overflow: hidden;
  padding: 2rem 1rem;
}

#auth-view::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(37,99,235,0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37,99,235,0.055) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

#auth-view::after {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 30%, rgba(37,99,235,0.08) 0%, transparent 70%),
    radial-gradient(ellipse 35% 30% at 85% 85%, rgba(96,165,250,0.08) 0%, transparent 60%);
  pointer-events: none;
}

/* Floating particles */
.auth-particles { position: absolute; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.auth-particle {
  position: absolute; border-radius: 50%;
  background: rgba(37,99,235,0.15);
  animation: authParticleRise linear infinite;
}
@keyframes authParticleRise {
  0%   { transform: translateY(100vh) scale(0); opacity: 0; }
  10%  { opacity: 1; }
  90%  { opacity: 0.5; }
  100% { transform: translateY(-80px) scale(1.1); opacity: 0; }
}

/* Centered wrapper */
.auth-wrap {
  position: relative; z-index: 1;
  width: 100%;
  max-width: 540px;
  margin: 0 auto;
}

/* Card */
.auth-card {
  background: #fff;
  border: 1.5px solid var(--blue-border);
  border-radius: 24px;
  padding: 2.5rem;
  box-shadow: 0 30px 70px rgba(37,99,235,0.12), 0 4px 16px rgba(0,0,0,0.04);
  position: relative;
  overflow: hidden;
}
.auth-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--blue), #60a5fa);
  border-radius: 24px 24px 0 0;
}

/* Logo */
.auth-logo-wrap {
  display: flex; align-items: center;
  justify-content: center; margin-bottom: 1.5rem;
  text-decoration: none;
}
.auth-logo-img {
  height: 48px;
  width: auto;
  object-fit: contain;
  display: block;
  filter: drop-shadow(0 2px 8px rgba(37, 99, 235, 0.18));
  transition: transform 0.28s cubic-bezier(0.34, 1.56, 0.64, 1),
              filter  0.28s ease;
}
.auth-logo-wrap:hover .auth-logo-img,
.auth-logo-wrap a:hover .auth-logo-img {
  transform: scale(1.04);
  filter: drop-shadow(0 4px 14px rgba(37, 99, 235, 0.3));
}

/* Badge + title */
.a-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--blue-soft); border: 1.5px solid var(--blue-border);
  padding: 0.35rem 1rem; border-radius: 100px;
  font-size: 0.72rem; font-weight: 700; color: var(--blue);
  width: fit-content; margin: 0 auto 1rem;
}
.a-title {
  font-family: 'Space Grotesk', 'Inter', sans-serif;
  font-size: 1.55rem; font-weight: 700; color: var(--text);
  text-align: center; margin-bottom: 0.35rem;
}
.a-sub {
  font-size: 0.84rem; color: var(--text-light);
  text-align: center; margin-bottom: 1.75rem; line-height: 1.6;
}

/* Form rows */
.auth-fr { display: grid; grid-template-columns: 1fr 1fr; gap: 0.85rem; margin-bottom: 0.85rem; }
.auth-fg { margin-bottom: 0.85rem; }
.auth-fg .lbl { display: block; font-size: 0.76rem; font-weight: 600; color: var(--text-mid); margin-bottom: 0.35rem; }
.auth-fg .finput { width: 100%; }
.auth-fg .finput-hint { font-size: 0.7rem; color: var(--text-light); margin-top: 0.25rem; }

/* Subject dropdowns */
.subject-row {
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 0.6rem;
  margin-bottom: 0.85rem;
}
.subject-row .auth-fg { margin-bottom: 0; }
.subject-dropdown {
  width: 100%; background: var(--off-white);
  border: 1.5px solid #DDE6F5; border-radius: 9px;
  padding: 0.72rem 0.8rem; font-family: 'Inter', sans-serif;
  font-size: 0.84rem; color: var(--text); outline: none;
  cursor: pointer; transition: border-color 0.2s, box-shadow 0.2s;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2364748B' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.8rem center;
  padding-right: 2rem;
}
.subject-dropdown:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(37,99,235,0.09); background-color: #fff; }
.subject-dropdown:disabled { background: #F1F5F9; color: #94A3B8; cursor: not-allowed; }

/* Submit button */
.btn-submit {
  width: 100%; background: linear-gradient(135deg, var(--blue), var(--blue-dark));
  color: #fff; border: none; cursor: pointer;
  padding: 0.9rem; border-radius: 10px;
  font-weight: 700; font-size: 0.95rem;
  font-family: 'Inter', 'Noto Sans Sinhala', 'Noto Sans Tamil', sans-serif;
  box-shadow: 0 6px 22px rgba(37,99,235,0.32);
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  margin-top: 0.5rem;
}
.btn-submit:hover { transform: translateY(-2px); box-shadow: 0 10px 32px rgba(37,99,235,0.42); }

/* Footer link */
.a-footer { text-align: center; font-size: 0.82rem; color: var(--text-light); margin-top: 1.25rem; }
.a-footer a { color: var(--blue); font-weight: 700; text-decoration: none; }

/* Alerts */
.alert-ok { background: #F0FDF4; border: 1.5px solid #BBF7D0; color: #065F46; padding: 0.8rem 1.2rem; border-radius: 10px; font-size: 0.84rem; margin-bottom: 1rem; }
.alert-error { background: #FFF5F5; border: 1.5px solid #FCA5A5; color: #991B1B; padding: 0.8rem 1.2rem; border-radius: 10px; font-size: 0.84rem; margin-bottom: 1rem; }
.alert-info { background: var(--blue-soft); border: 1.5px solid var(--blue-border); color: var(--blue-dark); padding: 0.8rem 1.2rem; border-radius: 10px; font-size: 0.84rem; margin-bottom: 1rem; }

/* Back to home link */
.auth-back-home {
  text-align: center; margin-top: 1rem;
  font-size: 0.8rem; color: var(--text-light);
}
.auth-back-home a { color: var(--blue); font-weight: 600; text-decoration: none; }

/* Responsive */
@media (max-width: 560px) {
  .auth-card { padding: 2rem 1.5rem; }
  .auth-fr { grid-template-columns: 1fr; }
  .subject-row { grid-template-columns: 1fr; }
}