@import url('theme.css');

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: 'Poppins', 'Segoe UI', sans-serif;
  background: linear-gradient(135deg, var(--ui-surface-alt) 0%, var(--brand-primary-soft) 100%);
  color: var(--ui-text);
}

.auth-header {
  padding: 1rem 1.25rem;
  background: linear-gradient(120deg, var(--primary-green), var(--primary-green-hover));
  color: var(--ui-surface);
  box-shadow: var(--ui-shadow-sm);
}

.auth-header h2 {
  margin: 0;
  font-size: 1.25rem;
}

.auth-header a {
  color: var(--ui-surface);
  text-decoration: none;
}

.form-container {
  width: 100%;
  max-width: 620px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.form-box {
  background: var(--ui-surface);
  border: 1px solid var(--ui-border);
  border-radius: 16px;
  padding: 1.5rem;
  box-shadow: var(--ui-shadow-md);
}

.form-box h2 {
  margin: 0;
  text-align: center;
  color: var(--primary-green);
}

.form-subtext {
  margin: 0.35rem 0 1.2rem;
  text-align: center;
  color: var(--ui-text-muted);
  font-size: 0.95rem;
}

.input-group {
  margin-bottom: 1rem;
}

.input-group label {
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 600;
}

.input-group input,
.course-trigger-btn,
.modal-search input {
  width: 100%;
  border: 1px solid var(--ui-border);
  background: var(--ui-surface);
  border-radius: 10px;
  padding: 0.72rem 0.85rem;
  font-size: 0.95rem;
  color: var(--ui-text);
}

.input-group input:focus,
.course-trigger-btn:focus,
.modal-search input:focus {
  outline: none;
  border-color: var(--primary-green);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.12);
}

.course-trigger-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.course-trigger-btn.invalid {
  border-color: var(--ui-error);
}

.selected-course-display {
  margin-top: 0.5rem;
  background: var(--brand-primary-soft);
  border: 1px solid rgba(15, 118, 110, 0.25);
  border-radius: 10px;
  padding: 0.6rem 0.75rem;
  font-size: 0.9rem;
}

.selected-course-display span {
  font-weight: 700;
  color: var(--primary-green);
}

.input-password {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem;
}

.password-toggle {
  border: 1px solid var(--ui-border);
  background: var(--ui-surface-alt);
  color: var(--primary-green);
  border-radius: 10px;
  padding: 0 0.75rem;
  cursor: pointer;
  font-weight: 600;
}

.password-toggle:hover {
  background: var(--brand-primary-soft);
}

.password-requirements {
  margin-top: 0.5rem;
  background: var(--ui-surface-alt);
  border: 1px solid var(--ui-border);
  border-radius: 10px;
  padding: 0.6rem 0.7rem;
  font-size: 0.88rem;
}

.password-requirements p {
  margin: 0 0 0.35rem;
  font-weight: 600;
}

.requirement {
  display: flex;
  gap: 0.45rem;
  color: var(--ui-text-muted);
}

.requirement.met {
  color: var(--ui-success);
}

.requirement.unmet {
  color: var(--ui-error);
}

.password-match {
  margin-top: 0.35rem;
  color: var(--ui-success);
  font-size: 0.85rem;
}

.terms-container {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  margin-bottom: 0.3rem;
}

.terms-label {
  font-size: 0.9rem;
  line-height: 1.5;
}

.terms-label a {
  color: var(--primary-green);
  font-weight: 600;
  text-decoration: none;
}

.terms-label a:hover {
  text-decoration: underline;
}

.form-btn {
  width: 100%;
  border: none;
  border-radius: 10px;
  padding: 0.82rem 1rem;
  background: linear-gradient(120deg, var(--primary-green), var(--primary-green-hover));
  color: var(--ui-surface);
  font-weight: 700;
  cursor: pointer;
  margin-top: 0.35rem;
}

.form-btn:hover {
  filter: brightness(0.95);
}

.form-text {
  margin-top: 1rem;
  text-align: center;
  color: var(--ui-text-muted);
}

.form-text a {
  color: var(--primary-green);
  font-weight: 600;
  text-decoration: none;
}

.form-text a:hover {
  text-decoration: underline;
}

.alert {
  border-radius: 10px;
  padding: 0.7rem 0.8rem;
  margin-bottom: 0.9rem;
  font-size: 0.92rem;
}

.alert-error {
  border: 1px solid rgba(185, 28, 28, 0.3);
  background: rgba(185, 28, 28, 0.1);
  color: var(--ui-error);
}

.field-error {
  display: block;
  min-height: 1rem;
  margin-top: 0.35rem;
  color: var(--ui-error);
  font-size: 0.82rem;
}

.field-hint {
  display: block;
  margin-top: 0.3rem;
  color: var(--ui-text-muted);
  font-size: 0.82rem;
}

.course-validation {
  display: none;
  color: var(--ui-error);
  margin-top: 0.4rem;
  font-size: 0.82rem;
}

.course-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  align-items: center;
  justify-content: center;
  z-index: 1400;
}

.course-modal {
  width: min(900px, 94vw);
  max-height: 88vh;
  overflow: hidden;
  border-radius: 14px;
  background: var(--ui-surface);
  border: 1px solid var(--ui-border);
  box-shadow: var(--ui-shadow-lg);
}

.modal-header {
  padding: 1rem 1.2rem;
  background: linear-gradient(120deg, var(--primary-green), var(--primary-green-hover));
  color: var(--ui-surface);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  margin: 0;
}

.close-modal {
  border: none;
  background: rgba(255, 255, 255, 0.15);
  color: var(--ui-surface);
  width: 34px;
  height: 34px;
  border-radius: 999px;
  cursor: pointer;
  font-size: 1.2rem;
}

.modal-search {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--ui-border);
}

.modal-courses {
  max-height: 50vh;
  overflow-y: auto;
  padding: 0.9rem;
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.65rem;
}

.modal-course-option {
  border: 1px solid var(--ui-border);
  background: var(--ui-surface-alt);
  border-radius: 10px;
  padding: 0.7rem;
  text-align: center;
  cursor: pointer;
}

.modal-course-option:hover {
  border-color: var(--primary-green);
}

.modal-course-option.selected {
  background: var(--brand-primary-soft);
  border-color: var(--primary-green);
  color: var(--primary-green);
  font-weight: 700;
}

.no-results-modal {
  padding: 1rem;
  text-align: center;
  color: var(--ui-text-muted);
}

.modal-footer {
  padding: 0.9rem 1rem;
  border-top: 1px solid var(--ui-border);
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

.modal-btn {
  border: none;
  border-radius: 8px;
  padding: 0.55rem 0.9rem;
  cursor: pointer;
  font-weight: 600;
}

.modal-btn.select {
  background: var(--primary-green);
  color: var(--ui-surface);
}

.modal-btn.cancel {
  background: var(--ui-surface-alt);
  color: var(--ui-text);
  border: 1px solid var(--ui-border);
}

@media (max-width: 640px) {
  .form-container {
    margin: 1.25rem auto;
  }

  .form-box {
    padding: 1.2rem;
    border-radius: 12px;
  }

  .course-grid {
    grid-template-columns: 1fr;
  }
}