/* ==========================================================================
   ScienceHub — In-App Teacher & Student Feedback System Styles
   ========================================================================== */

:root {
  --feedback-z-index: 990;
  --feedback-star-active: #f59e0b;
  --feedback-star-inactive: #cbd5e1;
}

/* ===== Floating Feedback Pill Button ===== */
.feedback-floating-btn {
  position: fixed;
  bottom: 20px;
  left: 20px;
  right: auto;
  z-index: var(--feedback-z-index);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--surface-color, var(--bg-card, #ffffff));
  color: var(--text-color, var(--text-primary, #1e293b));
  border: 1px solid var(--border-color, #e2e8f0);
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1),
              box-shadow 0.2s ease,
              border-color 0.2s ease,
              background-color 0.2s ease;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.feedback-floating-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(79, 110, 247, 0.18), 0 2px 6px rgba(0, 0, 0, 0.06);
  border-color: var(--primary-color, var(--accent-primary, #4f6ef7));
  color: var(--primary-color, var(--accent-primary, #4f6ef7));
}

.feedback-floating-btn:active {
  transform: translateY(0);
}

.feedback-floating-btn:focus-visible {
  outline: 2px solid var(--primary-color, var(--accent-primary, #4f6ef7));
  outline-offset: 2px;
}

/* ===== Feedback Modal Dialog & Overlay ===== */
.feedback-modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background-color: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 1;
  visibility: visible;
  transition: opacity 0.25s ease, visibility 0.25s ease;
}

.feedback-modal[hidden] {
  display: none !important;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.feedback-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.feedback-dialog {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--surface-color, var(--bg-card, #ffffff));
  color: var(--text-color, var(--text-primary, #1e293b));
  border-radius: 16px;
  border: 1px solid var(--border-color, #e2e8f0);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.18), 0 4px 12px rgba(0, 0, 0, 0.08);
  animation: feedbackModalIn 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes feedbackModalIn {
  from {
    opacity: 0;
    transform: scale(0.96) translateY(10px);
  }
  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* ===== Header ===== */
.feedback-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border-color, #e2e8f0);
}

.feedback-title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.feedback-title-wrap h3 {
  margin: 0;
  font-size: 1.18rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-color, var(--text-primary, #1e293b));
}

.feedback-icon {
  font-size: 1.35rem;
  line-height: 1;
}

.feedback-close-btn {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  line-height: 1;
  color: var(--text-muted, #94a3b8);
  cursor: pointer;
  padding: 6px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.feedback-close-btn:hover {
  color: var(--text-color, var(--text-primary, #1e293b));
  background-color: var(--bg-tertiary, #f1f5f9);
}

/* ===== Form Layout ===== */
.feedback-body {
  padding: 20px 24px;
}

.feedback-intro {
  margin: 0 0 18px;
  font-size: 0.88rem;
  color: var(--text-secondary, #64748b);
  line-height: 1.5;
}

.feedback-form-group {
  margin-bottom: 16px;
}

.feedback-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.feedback-form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-color, var(--text-primary, #1e293b));
}

.feedback-form-group label .required {
  color: var(--danger, #ef4444);
  margin-left: 2px;
}

.feedback-form-group select,
.feedback-form-group input[type="text"],
.feedback-form-group input[type="email"],
.feedback-form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border-color, #e2e8f0);
  background-color: var(--input-bg, var(--bg-secondary, #ffffff));
  color: var(--text-color, var(--text-primary, #1e293b));
  font-family: inherit;
  font-size: 0.9rem;
  box-sizing: border-box;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.feedback-form-group select:focus,
.feedback-form-group input:focus,
.feedback-form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color, var(--accent-primary, #4f6ef7));
  box-shadow: 0 0 0 3px var(--ring-1, rgba(79, 110, 247, 0.18));
}

.feedback-context-display {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 8px;
  background-color: var(--bg-tertiary, #f8fafc);
  border: 1px dashed var(--border-color, #cbd5e1);
  font-size: 0.82rem;
  color: var(--text-secondary, #475569);
  margin-bottom: 16px;
}

.feedback-context-display span.badge {
  font-weight: 600;
  color: var(--primary-color, var(--accent-primary, #4f6ef7));
}

/* ===== 5-Star Interactive Rating Widget ===== */
.feedback-stars-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.feedback-stars {
  display: inline-flex;
  flex-direction: row-reverse; /* Allows hover effects to cascade to previous stars via sibling combinator */
  justify-content: flex-end;
  gap: 4px;
}

.feedback-star {
  font-size: 1.75rem;
  line-height: 1;
  color: var(--feedback-star-inactive);
  cursor: pointer;
  background: transparent;
  border: none;
  padding: 2px 4px;
  transition: transform 0.15s ease, color 0.15s ease;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.feedback-star:hover,
.feedback-star:hover ~ .feedback-star,
.feedback-star.selected,
.feedback-star.selected ~ .feedback-star {
  color: var(--feedback-star-active);
}

.feedback-star:hover {
  transform: scale(1.18);
}

.feedback-rating-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary, #64748b);
  min-width: 90px;
}

/* ===== Footer & Actions ===== */
.feedback-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 24px 20px;
  border-top: 1px solid var(--border-color, #e2e8f0);
}

.feedback-footer-left {
  display: flex;
  align-items: center;
}

.feedback-footer-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.feedback-mailto-link {
  font-size: 0.82rem;
  color: var(--primary-color, var(--accent-primary, #4f6ef7));
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 6px;
  background: transparent;
  border: 1px solid transparent;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.feedback-mailto-link:hover {
  background-color: var(--accent-subtle, rgba(79, 110, 247, 0.08));
  border-color: var(--primary-color, var(--accent-primary, #4f6ef7));
  text-decoration: none;
}

.feedback-saved-link {
  font-size: 0.82rem;
  color: var(--primary-color, var(--accent-primary, #4f6ef7));
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  padding: 5px 10px;
  border-radius: 6px;
  background: transparent;
  border: 1px solid var(--border-color, #e2e8f0);
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.feedback-saved-link:hover {
  background-color: var(--accent-subtle, rgba(79, 110, 247, 0.08));
  border-color: var(--primary-color, var(--accent-primary, #4f6ef7));
  text-decoration: none;
}

/* ===== Dashboard Feedback Submissions Viewer ===== */
.dash-feedback-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.dash-feedback-card {
  border: 1px solid var(--border-color, #e2e8f0);
  background: var(--surface-color, var(--bg-card, #ffffff));
  border-radius: 12px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.dash-feedback-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.06);
}

.dash-feedback-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.dash-feedback-role-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--accent-subtle, rgba(79, 110, 247, 0.1));
  color: var(--primary-color, var(--accent-primary, #4f6ef7));
}

.dash-feedback-stars {
  color: var(--feedback-star-active, #f59e0b);
  font-size: 0.95rem;
  letter-spacing: 2px;
}

.dash-feedback-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: var(--text-muted, #94a3b8);
}

.dash-feedback-tag {
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--bg-tertiary, #f1f5f9);
  color: var(--text-secondary, #475569);
  font-weight: 600;
  font-size: 0.75rem;
}

.dash-feedback-comments {
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--text-color, var(--text-primary, #1e293b));
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
}

.dash-feedback-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: auto;
  padding-top: 8px;
  border-top: 1px dashed var(--border-color, #e2e8f0);
  font-size: 0.75rem;
  color: var(--text-muted, #94a3b8);
}

.dash-feedback-email {
  color: var(--primary-color, var(--accent-primary, #4f6ef7));
  text-decoration: none;
}

.dash-feedback-email:hover {
  text-decoration: underline;
}

/* ===== Dark Mode Theme Adjustments ===== */
[data-theme="dark"] .feedback-floating-btn {
  background: var(--surface-color, var(--bg-card, #1e2236));
  color: var(--text-color, var(--text-primary, #eceef5));
  border-color: var(--border-color, #2d334d);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .feedback-dialog {
  background: var(--surface-color, var(--bg-card, #181c2e));
  color: var(--text-color, var(--text-primary, #eceef5));
  border-color: var(--border-color, #2d334d);
}

[data-theme="dark"] .feedback-context-display {
  background-color: var(--bg-tertiary, #1e2236);
  border-color: var(--border-color, #2d334d);
  color: var(--text-secondary, #94a3b8);
}

[data-theme="dark"] .feedback-form-group select,
[data-theme="dark"] .feedback-form-group input,
[data-theme="dark"] .feedback-form-group textarea {
  background-color: var(--bg-secondary, #151827);
  border-color: var(--border-color, #2d334d);
  color: var(--text-primary, #eceef5);
}

[data-theme="dark"] .feedback-saved-link {
  border-color: var(--border-color, #2d334d);
}

[data-theme="dark"] .dash-feedback-card {
  background: var(--surface-color, var(--bg-card, #1e2236));
  border-color: var(--border-color, #2d334d);
}

[data-theme="dark"] .dash-feedback-tag {
  background: var(--bg-tertiary, #2d334d);
  color: var(--text-secondary, #cbd5e1);
}

[data-theme="dark"] :root {
  --feedback-star-inactive: #475569;
}

/* ===== Mobile Responsiveness ===== */
@media (max-width: 768px) {
  .feedback-floating-btn {
    bottom: 20px;
    left: 14px;
    right: auto;
    padding: 8px 14px;
    font-size: 0.82rem;
  }

  .dash-feedback-list {
    grid-template-columns: 1fr;
  }

  .feedback-form-row {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .feedback-dialog {
    max-height: 94vh;
    border-radius: 14px;
  }

  .feedback-header,
  .feedback-body,
  .feedback-footer {
    padding-left: 16px;
    padding-right: 16px;
  }

  .feedback-footer {
    flex-direction: column-reverse;
    align-items: stretch;
  }

  .feedback-footer-right {
    flex-direction: column-reverse;
    width: 100%;
  }

  .feedback-footer-right .btn {
    width: 100%;
  }

  .feedback-footer-left {
    justify-content: center;
  }
}