:root {
  --transition-normal: 0.3s ease;
}

body {
  background: #f8fafc;
}

.auth-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 640px) {
  main {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
  }
}

@media (min-width: 1024px) {
  .auth-container {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }

  .auth-surface {
    max-width: 31rem;
    margin-inline: auto;
  }
}

.aside-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 2rem 1rem;
}

.aside-content > div {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.aside-content > div p {
  margin: 0;
}

.auth-copy {
  color: #3f5768;
  max-width: 38rem;
}

.auth-forms-section {
  border-radius: 1.5rem;
  padding: 0.1125rem 0.15rem;
  background: #f8fafc;
}

.auth-surface {
  background:
    linear-gradient(
      130deg,
      var(--banana-cream) 0%,
      rgba(238, 231, 105, 0.55) 45%,
      transparent 70%
    ),
    linear-gradient(
      320deg,
      var(--muted-olive) 0%,
      rgba(182, 205, 133, 0.58) 50%,
      rgba(255, 255, 255, 0.65) 100%
    ),
    radial-gradient(
      circle at 25% 22%,
      rgba(255, 255, 255, 0.45),
      transparent 34%
    ),
    radial-gradient(
      circle at 75% 68%,
      rgba(255, 255, 255, 0.35),
      transparent 30%
    );
  border: 2px solid rgba(107, 114, 128, 0.55);
  border-radius: 2rem;
  box-shadow:
    var(--shadow-soft),
    0 20px 45px rgba(40, 40, 37, 0.1);
  padding: 1rem !important;
}

@media (min-width: 640px) {
  .auth-surface {
    padding: 1.2rem !important;
  }
}

.auth-title {
  color: #1f232a;
  font-size: clamp(2.2rem, 3.2vw, 3.2rem);
  font-weight: 700;
}

.auth-switch {
  background: var(--muted-olive);
  border-radius: 9999px;
  padding: 0.45rem;
}

.mode-button,
.role-button {
  border-radius: 9999px;
  min-height: 3.2rem;
  font-size: clamp(0.98rem, 1.1vw, 1.2rem);
  font-weight: 700;
  color: #4b5563;
  transition: all var(--transition-normal);
}

.mode-button.is-active,
.role-button.is-active {
  background: #f8f8f8;
  color: #36414a;
  box-shadow: inset 0 0 0 1px rgba(148, 163, 184, 0.7);
}

.auth-data-form {
  background: transparent;
}

.auth-data-form .grid {
  gap: 0.8rem;
}

.auth-data-form label {
  font-size: 0.92rem;
  font-weight: 700;
  color: #1f232a;
}

.auth-data-form small {
  font-size: 0.85rem;
  color: #5b6470;
}

.input-field {
  border: 2px solid rgba(148, 163, 184, 0.85);
  border-radius: 1rem;
  padding: 0.78rem 1rem;
  min-height: 3.75rem;
  font-size: 0.92rem;
  background: #efefef;
  color: #111827;
  transition: all var(--transition-normal);
}

.input-field:focus {
  border-color: var(--teacher-cyan);
  box-shadow: 0 0 0 3px rgba(31, 163, 215, 0.13);
  outline: none;
}

.input-field::placeholder {
  color: #6b7280;
}

.form-section {
  border: none;
  border-radius: 0;
  background: transparent;
  padding: 0;
  display: none;
}

.form-section.show {
  display: block;
}

.password-toggle {
  cursor: pointer;
  user-select: none;
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 9999px;
  background: rgba(239, 239, 239, 0.9);
  color: #4b5563;
  transition:
    color var(--transition-normal),
    background var(--transition-normal);
}

.password-toggle:hover {
  color: var(--teacher-cyan);
  background: rgba(31, 163, 215, 0.12);
}

.password-toggle:focus {
  outline: 2px solid var(--teacher-cyan);
  outline-offset: -2px;
}

.auth-primary-btn {
  background: linear-gradient(110deg, #6ea8c4 0%, #304553 100%);
  color: var(--white);
  border: none;
  min-height: 3.85rem;
  font-size: 1rem;
  font-weight: 800;
  transition: all var(--transition-normal);
}

.auth-primary-btn:hover {
  background: linear-gradient(110deg, #629bb6 0%, #283d4b 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(31, 163, 215, 0.3);
}

.auth-primary-btn:focus {
  outline: 2px solid var(--teacher-cyan);
  outline-offset: 2px;
}

.teacher-role-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
}

.teacher-role-option {
  display: inline-flex;
  align-items: flex-start;
  gap: 0.35rem;
  border-radius: 0.85rem;
  border: 1px solid rgba(107, 114, 128, 0.45);
  background: rgba(248, 250, 252, 0.72);
  padding: 0.45rem 0.5rem;
  font-size: 0.78rem;
  font-weight: 700;
  color: #374151;
  min-width: 0;
}

.teacher-role-option span {
  display: block;
  min-width: 0;
  white-space: normal;
  overflow-wrap: anywhere;
  line-height: 1.15;
}

.teacher-role-option input {
  width: 0.9rem;
  height: 0.9rem;
  accent-color: #4f7387;
}

.form-error {
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fca5a5;
  border-radius: 0.75rem;
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  display: none;
}

.form-error.show {
  display: block;
}

.form-success {
  background: #dcfce7;
  color: #166534;
  border: 1px solid #86efac;
  border-radius: 0.75rem;
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  display: none;
}

.form-success.show {
  display: block;
}

@media (prefers-color-scheme: dark) {
  .auth-surface {
    background:
      linear-gradient(
        130deg,
        var(--banana-cream) 0%,
        rgba(238, 231, 105, 0.55) 45%,
        transparent 70%
      ),
      linear-gradient(
        320deg,
        var(--muted-olive) 0%,
        rgba(182, 205, 133, 0.58) 50%,
        rgba(255, 255, 255, 0.65) 100%
      ),
      radial-gradient(
        circle at 25% 22%,
        rgba(255, 255, 255, 0.45),
        transparent 34%
      ),
      radial-gradient(
        circle at 75% 68%,
        rgba(255, 255, 255, 0.35),
        transparent 30%
      );
  }

  .input-field {
    background: #efefef;
    color: #111827;
  }
}

@media (max-width: 640px) {
  main {
    min-height: auto;
    padding-top: 0.75rem !important;
    padding-bottom: 0.75rem !important;
  }

  .auth-forms-section {
    padding: 0.06rem 0.12rem;
  }

  .auth-surface {
    padding: 0.75rem !important;
    border-radius: 1.5rem;
  }

  .auth-title {
    margin-bottom: 0.75rem !important;
    font-size: 1.85rem;
  }

  .auth-switch {
    margin-bottom: 0.75rem !important;
    padding: 0.32rem;
  }

  .mode-button,
  .role-button {
    min-height: 2.85rem;
    font-size: 0.92rem;
  }

  .auth-data-form.space-y-4 > :not([hidden]) ~ :not([hidden]) {
    margin-top: 0.7rem;
  }

  .input-field {
    min-height: 3.3rem;
    font-size: 0.88rem;
    padding: 0.68rem 0.88rem;
  }

  .auth-primary-btn {
    min-height: 3.35rem;
    font-size: 0.95rem;
  }

  .teacher-role-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.4rem;
  }

  .teacher-role-option {
    padding: 0.4rem 0.42rem;
    font-size: 0.72rem;
  }
}