/* =====================================================
   community.css
   Styles for: TopBar · Auth Modal · Reviews · Discussions
   ===================================================== */

/* ── CSS Variables (inherit from style.css) ── */
:root {
  --c-bg:        #0a0a0a;
  --c-bg2:       #1a1a1a;
  --c-bg3:       #242424;
  --c-border:    #333;
  --c-text:      #ffffff;
  --c-muted:     #888;
  --c-blue:      #4a90e2;
  --c-teal:      #50e3c2;
  --c-green:     #4caf50;
  --c-red:       #f44336;
  --c-star:      #f5a623;
  --c-radius:    10px;
  --c-radius-sm: 6px;
  --c-transition: 0.2s ease;
}

/* =====================================================
   NOTIFICATION BAR
   ===================================================== */
.iris-notify-bar {
  position: relative;
  background: #000;
  color: #22c55e;
  text-align: center;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 8px 48px;
  min-height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.iris-notify-inner {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.iris-notify-btn {
  display: inline-block;
  padding: 3px 13px;
  border: 1px solid #22c55e;
  border-radius: 12px;
  color: #22c55e;
  font-size: 0.8125rem;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.2s, color 0.2s;
}
.iris-notify-btn:hover {
  background: #22c55e;
  color: #000;
}

.iris-notify-close {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: #666;
  font-size: 1rem;
  line-height: 1;
  padding: 4px 8px;
  cursor: pointer;
  transition: color 0.2s;
}
.iris-notify-close:hover { color: #fff; }

/* =====================================================
   TOP BAR
   ===================================================== */
.iris-topbar {
  position: sticky;
  top: 0;
  z-index: 3000;
  background: rgba(10, 10, 10, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--c-border);
}

.iris-topbar-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
  height: 56px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px;
}

.iris-topbar-brand {
  font-size: 1.2875rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  background: linear-gradient(90deg, var(--c-blue), var(--c-teal));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.iris-topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Sign-in button */
.iris-signin-btn {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 6px 2px;
  background: none;
  border: none;
  color: #22c55e;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
  transition: opacity 0.2s;
}
.iris-signin-btn:hover {
  opacity: 0.75;
}

/* User chip */
.iris-user-chip {
  display: flex;
  align-items: center;
  gap: 8px;
}

.iris-avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--c-blue);
}

.iris-avatar-placeholder {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-blue), var(--c-teal));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.iris-user-name {
  font-size: 1rem;
  font-weight: 500;
  color: var(--c-text);
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.iris-logout-btn {
  padding: 5px 12px;
  border-radius: 14px;
  border: 1px solid var(--c-border);
  background: transparent;
  color: var(--c-muted);
  font-size: 0.9rem;
  cursor: pointer;
  transition: border-color var(--c-transition), color var(--c-transition);
}
.iris-logout-btn:hover {
  border-color: var(--c-red);
  color: var(--c-red);
}

/* =====================================================
   MAIN NAVIGATION
   ===================================================== */
.iris-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
}

.iris-nav-link {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 14px;
  color: var(--c-text);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: 6px;
  background: none;
  border: none;
  cursor: pointer;
  white-space: nowrap;
  font-family: inherit;
  transition: color var(--c-transition);
}
.iris-nav-link:hover { color: var(--c-teal); }

/* Hide Home in top navigation */
.iris-nav > .iris-nav-link:first-child {
  display: none;
}

.iris-nav-active {
  color: #22c55e !important;
}

/* Support dropdown */
.iris-nav-has-dropdown {
  position: relative;
  padding-bottom: 10px;
  margin-bottom: -10px;
}

.iris-nav-dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  background: var(--c-bg2);
  border: 1px solid var(--c-border);
  border-radius: var(--c-radius-sm);
  min-width: 148px;
  padding: 6px 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s, transform 0.15s;
  z-index: 200;
  box-shadow: 0 8px 24px rgba(0,0,0,0.45);
}
.iris-nav-has-dropdown:hover .iris-nav-dropdown,
.iris-nav-has-dropdown:focus-within .iris-nav-dropdown {
  opacity: 1;
  pointer-events: all;
  transform: translateX(-50%) translateY(0);
}
.iris-nav-has-dropdown.desktop-open .iris-nav-dropdown {
  opacity: 1;
  pointer-events: all;
  transform: translateX(-50%) translateY(0);
}

.iris-nav-dropdown-item {
  display: block;
  padding: 9px 18px;
  color: var(--c-text);
  font-size: 0.875rem;
  text-decoration: none;
  transition: background var(--c-transition), color var(--c-transition);
}
.iris-nav-dropdown-item:hover {
  background: var(--c-bg3);
  color: var(--c-teal);
}

/* Language button */
.iris-lang-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 5px 10px;
  background: none;
  border: none;
  color: var(--c-text);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  border-radius: 6px;
  white-space: nowrap;
  transition: color var(--c-transition);
}
.iris-lang-btn:hover { color: var(--c-teal); }

/* Hamburger (mobile only) */
.iris-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 4px;
  background: none;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
}
.iris-hamburger span {
  display: block;
  height: 2px;
  background: var(--c-text);
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}
.iris-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.iris-hamburger.open span:nth-child(2) { opacity: 0; }
.iris-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =====================================================
   FOOTER
   ===================================================== */
.iris-footer {
  background: #0a0a0a;
  border-top: 2px solid var(--c-blue);
  padding: 56px 0 40px;
  margin-top: 60px;
}

.iris-footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 40px;
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 80px;
  align-items: start;
}

.iris-footer-brand {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  background: linear-gradient(90deg, var(--c-blue), var(--c-teal));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 14px;
}

.iris-footer-tagline {
  color: var(--c-muted);
  font-size: 0.9rem;
  line-height: 1.65;
  margin-bottom: 28px;
  max-width: 320px;
}

.iris-footer-contact {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.iris-footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--c-muted);
  font-size: 0.9rem;
  line-height: 1.55;
}
.iris-footer-contact li svg {
  flex-shrink: 0;
  margin-top: 2px;
  opacity: 0.7;
}
.iris-footer-contact a {
  color: var(--c-muted);
  text-decoration: none;
  transition: color var(--c-transition);
}
.iris-footer-contact a:hover { color: var(--c-teal); }

.iris-footer-right {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.iris-footer-nav {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}
.iris-footer-nav-link {
  color: var(--c-text);
  font-size: 0.9375rem;
  font-weight: 500;
  text-decoration: none;
  transition: color var(--c-transition);
}
.iris-footer-nav-link:hover { color: var(--c-teal); }
.iris-footer-nav-active { color: #22c55e !important; }

.iris-footer-sub-title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 6px;
}
.iris-footer-sub-desc {
  color: var(--c-muted);
  font-size: 0.875rem;
  line-height: 1.55;
  margin-bottom: 14px;
}

.iris-footer-form-row {
  display: flex;
  align-items: center;
  border: 1px solid var(--c-border);
  border-radius: 6px;
  overflow: hidden;
  max-width: 360px;
  background: #111;
}
.iris-footer-form-row input[type="email"] {
  flex: 1;
  padding: 12px 16px;
  background: none;
  border: none;
  outline: none;
  color: var(--c-text);
  font-size: 0.9rem;
  font-family: inherit;
}
.iris-footer-form-row input[type="email"]::placeholder { color: var(--c-muted); }
.iris-footer-form-row button {
  padding: 10px 14px;
  background: none;
  border: none;
  border-left: 1px solid var(--c-border);
  color: var(--c-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--c-transition), color var(--c-transition);
}
.iris-footer-form-row button:hover {
  background: var(--c-bg3);
  color: var(--c-teal);
}

.iris-footer-social {
  display: flex;
  gap: 12px;
  align-items: center;
}
.iris-footer-social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 6px;
  background: var(--c-bg2);
  border: 1px solid var(--c-border);
  color: var(--c-text);
  text-decoration: none;
  transition: background var(--c-transition), color var(--c-transition), border-color var(--c-transition);
}
.iris-footer-social-link:hover {
  background: var(--c-bg3);
  color: var(--c-teal);
  border-color: var(--c-teal);
}

/* =====================================================
   AUTH MODAL
   ===================================================== */
.auth-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.auth-modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.auth-modal-box {
  background: var(--c-bg2);
  border: 1px solid var(--c-border);
  border-radius: 16px;
  width: 100%;
  max-width: 420px;
  padding: 32px;
  position: relative;
  transform: translateY(20px);
  transition: transform 0.25s ease;
  box-shadow: 0 24px 60px rgba(0,0,0,0.6);
}
.auth-modal-overlay.active .auth-modal-box {
  transform: translateY(0);
}

.auth-modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--c-bg3);
  border: none;
  color: var(--c-muted);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--c-transition), color var(--c-transition);
}
.auth-modal-close:hover {
  background: var(--c-border);
  color: var(--c-text);
}

/* Auth tabs */
.auth-tabs {
  display: flex;
  gap: 0;
  background: var(--c-bg3);
  border-radius: 8px;
  padding: 4px;
  margin-bottom: 28px;
}
.auth-tab {
  flex: 1;
  padding: 9px;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--c-muted);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--c-transition), color var(--c-transition);
}
.auth-tab.active {
  background: var(--c-bg2);
  color: var(--c-text);
  box-shadow: 0 1px 4px rgba(0,0,0,0.4);
}

/* Auth panels */
.auth-panel { display: none; }
.auth-panel.active { display: block; }

.auth-title {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--c-text);
}
.auth-subtitle {
  font-size: 0.875rem;
  color: var(--c-muted);
  margin-bottom: 24px;
}

/* Fields */
.auth-field {
  margin-bottom: 18px;
}
.auth-field label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--c-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 7px;
}
.auth-field input {
  width: 100%;
  padding: 11px 14px;
  background: var(--c-bg3);
  border: 1px solid var(--c-border);
  border-radius: var(--c-radius-sm);
  color: var(--c-text);
  font-size: 0.9rem;
  outline: none;
  transition: border-color var(--c-transition);
  box-sizing: border-box;
}
.auth-field input:focus {
  border-color: var(--c-blue);
}
.auth-field input::placeholder {
  color: #555;
}

.auth-password-wrap {
  position: relative;
}
.auth-password-wrap input {
  padding-right: 44px;
}
.auth-eye {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--c-muted);
  cursor: pointer;
  padding: 4px;
  display: flex;
  align-items: center;
}
.auth-eye:hover { color: var(--c-text); }

.auth-strength {
  margin-top: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  min-height: 18px;
}

/* Error */
.auth-error {
  font-size: 0.82rem;
  color: var(--c-red);
  min-height: 20px;
  margin-bottom: 12px;
}

/* Submit button */
.auth-submit {
  width: 100%;
  padding: 13px;
  border-radius: var(--c-radius-sm);
  border: none;
  background: linear-gradient(90deg, var(--c-blue), var(--c-teal));
  color: #fff;
  font-size: 0.95rem;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: opacity var(--c-transition);
}
.auth-submit:hover:not(:disabled) { opacity: 0.88; }
.auth-submit:disabled { opacity: 0.5; cursor: not-allowed; }

.auth-switch {
  text-align: center;
  margin-top: 18px;
  font-size: 0.85rem;
  color: var(--c-muted);
}
.auth-link {
  background: none;
  border: none;
  color: var(--c-blue);
  cursor: pointer;
  font-size: inherit;
  font-weight: 600;
  padding: 0;
}
.auth-link:hover { text-decoration: underline; }

/* Success panel */
.auth-success-icon {
  text-align: center;
  margin-bottom: 16px;
  margin-top: 8px;
}

/* =====================================================
   SHARED UTILITIES
   ===================================================== */

/* Spinner */
.auth-spinner,
.btn-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

.spinner-ring {
  display: inline-block;
  width: 36px;
  height: 36px;
  border: 3px solid var(--c-border);
  border-top-color: var(--c-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* Loading states */
.reviews-loading,
.disc-loading {
  display: flex;
  justify-content: center;
  padding: 60px 0;
}

/* Required asterisk */
.required { color: var(--c-red); }

/* =====================================================
   STAR ICONS
   ===================================================== */
.star-icon {
  display: inline-block;
  vertical-align: middle;
  fill: none;
  stroke: var(--c-star);
  stroke-width: 1.5;
  transition: fill 0.15s, stroke 0.15s;
}
.star-icon.filled,
.star-icon.selected,
.star-icon.hovered {
  fill: var(--c-star);
  stroke: var(--c-star);
}
.star-icon.half {
  fill: var(--c-star);
  stroke: var(--c-star);
  clip-path: inset(0 50% 0 0);
}
.star-icon.empty {
  fill: none;
  stroke: #555;
}

/* =====================================================
   REVIEWS TAB
   ===================================================== */
.reviews-wrap {
  padding: 32px 0;
}

/* Summary block */
.reviews-summary {
  display: flex;
  gap: 40px;
  align-items: center;
  background: var(--c-bg2);
  border: 1px solid var(--c-border);
  border-radius: var(--c-radius);
  padding: 28px 32px;
  margin-bottom: 28px;
}
@media (max-width: 600px) {
  .reviews-summary { flex-direction: column; gap: 20px; padding: 20px; }
}

.reviews-avg-block {
  text-align: center;
  flex-shrink: 0;
}
.reviews-avg-score {
  display: block;
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(135deg, var(--c-blue), var(--c-teal));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.reviews-avg-stars {
  margin: 6px 0 4px;
  display: flex;
  justify-content: center;
  gap: 2px;
}
.reviews-avg-count {
  font-size: 0.8rem;
  color: var(--c-muted);
}

.reviews-bars {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.rating-bar-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
}
.rating-bar-label {
  width: 36px;
  color: var(--c-muted);
  text-align: right;
  flex-shrink: 0;
}
.rating-bar-track {
  flex: 1;
  height: 6px;
  background: var(--c-bg3);
  border-radius: 3px;
  overflow: hidden;
}
.rating-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--c-blue), var(--c-teal));
  border-radius: 3px;
  transition: width 0.6s ease;
}
.rating-bar-count {
  width: 24px;
  color: var(--c-muted);
  text-align: right;
  flex-shrink: 0;
}

/* Toolbar */
.reviews-toolbar,
.disc-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 12px;
}
.reviews-toolbar-count,
.disc-toolbar-count {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--c-muted);
}
.reviews-sort-select,
.disc-sort-select {
  padding: 7px 12px;
  background: var(--c-bg2);
  border: 1px solid var(--c-border);
  border-radius: var(--c-radius-sm);
  color: var(--c-text);
  font-size: 0.85rem;
  cursor: pointer;
  outline: none;
}
.reviews-sort-select:focus,
.disc-sort-select:focus {
  border-color: var(--c-blue);
}

/* Write review section */
.review-write-section {
  margin-bottom: 32px;
}

/* Guest prompt */
.review-guest-prompt {
  text-align: center;
  padding: 32px;
  background: var(--c-bg2);
  border: 1px dashed var(--c-border);
  border-radius: var(--c-radius);
}
.review-guest-prompt svg {
  margin: 0 auto 12px;
  opacity: 0.4;
  display: block;
}
.review-guest-prompt p {
  color: var(--c-muted);
  margin-bottom: 16px;
  font-size: 0.9rem;
}
.review-signin-btn {
  padding: 10px 24px;
  border-radius: 20px;
  border: 1px solid var(--c-blue);
  background: transparent;
  color: var(--c-blue);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--c-transition), color var(--c-transition);
}
.review-signin-btn:hover {
  background: var(--c-blue);
  color: #fff;
}

/* Review form */
.review-form-wrap {
  background: var(--c-bg2);
  border: 1px solid var(--c-border);
  border-radius: var(--c-radius);
  padding: 28px;
}
.review-form-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.review-field {
  margin-bottom: 18px;
  position: relative;
}
.review-field label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--c-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}
.review-field input,
.review-field textarea {
  width: 100%;
  padding: 11px 14px;
  background: var(--c-bg3);
  border: 1px solid var(--c-border);
  border-radius: var(--c-radius-sm);
  color: var(--c-text);
  font-size: 0.9rem;
  font-family: inherit;
  outline: none;
  resize: vertical;
  transition: border-color var(--c-transition);
  box-sizing: border-box;
}
.review-field input:focus,
.review-field textarea:focus {
  border-color: var(--c-blue);
}
.review-field input::placeholder,
.review-field textarea::placeholder {
  color: #555;
}
.char-count {
  position: absolute;
  bottom: 10px;
  right: 12px;
  font-size: 0.72rem;
  color: #555;
  pointer-events: none;
}

/* Star picker */
.star-picker {
  display: flex;
  gap: 4px;
}
.star-label {
  cursor: pointer;
  display: flex;
  align-items: center;
}
.star-radio {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

/* Review error */
.review-error {
  font-size: 0.82rem;
  color: var(--c-red);
  min-height: 18px;
  margin-bottom: 10px;
}

/* Submit button */
.review-submit-btn {
  padding: 12px 28px;
  border-radius: var(--c-radius-sm);
  border: none;
  background: linear-gradient(90deg, var(--c-blue), var(--c-teal));
  color: #fff;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: opacity var(--c-transition);
}
.review-submit-btn:hover:not(:disabled) { opacity: 0.88; }
.review-submit-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Review card */
.review-card {
  padding: 24px 0;
  border-bottom: 1px solid var(--c-border);
}
.review-card:last-child { border-bottom: none; }

.review-header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 12px;
}
.review-avatar-wrap { flex-shrink: 0; }
.review-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
}
.review-avatar-placeholder {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-blue), var(--c-teal));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
}
.review-meta {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.review-author {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--c-text);
}
.review-date {
  font-size: 0.9rem;
  color: var(--c-muted);
}
.review-stars {
  display: flex;
  gap: 2px;
  flex-shrink: 0;
}

.review-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--c-text);
}
.review-body {
  font-size: 0.9rem;
  color: #ccc;
  line-height: 1.7;
  margin-bottom: 12px;
}

.review-footer {
  display: flex;
  gap: 12px;
}
.review-helpful-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 14px;
  border: 1px solid var(--c-border);
  background: transparent;
  color: var(--c-muted);
  font-size: 0.9rem;
  cursor: pointer;
  transition: border-color var(--c-transition), color var(--c-transition);
}
.review-helpful-btn:hover,
.review-helpful-btn.voted {
  border-color: var(--c-blue);
  color: var(--c-blue);
}

/* Reviews empty */
.reviews-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--c-muted);
}
.reviews-empty svg {
  margin: 0 auto 16px;
  opacity: 0.3;
  display: block;
}
.reviews-empty p { font-size: 0.9rem; }

/* =====================================================
   DISCUSSIONS TAB
   ===================================================== */
.disc-wrap {
  padding: 32px 0;
}

/* New thread form */
.disc-new-thread-guest {
  text-align: center;
  padding: 32px;
  background: var(--c-bg2);
  border: 1px dashed var(--c-border);
  border-radius: var(--c-radius);
  margin-bottom: 28px;
}
.disc-guest-icon {
  margin: 0 auto 12px;
  opacity: 0.4;
}
.disc-guest-icon svg { margin: 0 auto; display: block; }
.disc-new-thread-guest p {
  color: var(--c-muted);
  margin-bottom: 16px;
  font-size: 0.9rem;
}
.disc-signin-btn {
  padding: 10px 24px;
  border-radius: 20px;
  border: 1px solid var(--c-blue);
  background: transparent;
  color: var(--c-blue);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--c-transition), color var(--c-transition);
}
.disc-signin-btn:hover {
  background: var(--c-blue);
  color: #fff;
}

.disc-new-thread-form-wrap {
  background: var(--c-bg2);
  border: 1px solid var(--c-border);
  border-radius: var(--c-radius);
  margin-bottom: 28px;
  overflow: hidden;
}

.disc-new-thread-trigger {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  cursor: pointer;
  transition: background var(--c-transition);
}
.disc-new-thread-trigger:hover { background: var(--c-bg3); }

.disc-trigger-placeholder {
  flex: 1;
  padding: 10px 14px;
  background: var(--c-bg3);
  border: 1px solid var(--c-border);
  border-radius: 20px;
  color: #555;
  font-size: 0.875rem;
}

.disc-new-thread-form {
  padding: 20px;
  border-top: 1px solid var(--c-border);
}

.disc-field {
  margin-bottom: 14px;
  position: relative;
}
.disc-field input,
.disc-field textarea {
  width: 100%;
  padding: 11px 14px;
  background: var(--c-bg3);
  border: 1px solid var(--c-border);
  border-radius: var(--c-radius-sm);
  color: var(--c-text);
  font-size: 0.9rem;
  font-family: inherit;
  outline: none;
  resize: vertical;
  transition: border-color var(--c-transition);
  box-sizing: border-box;
}
.disc-field input:focus,
.disc-field textarea:focus { border-color: var(--c-blue); }
.disc-field input::placeholder,
.disc-field textarea::placeholder { color: #555; }

.disc-char-count {
  position: absolute;
  bottom: 10px;
  right: 12px;
  font-size: 0.72rem;
  color: #555;
  pointer-events: none;
}

.disc-error {
  font-size: 0.82rem;
  color: var(--c-red);
  min-height: 18px;
  margin-bottom: 10px;
}

.disc-form-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 10px;
}
.disc-cancel-btn {
  padding: 9px 18px;
  border-radius: var(--c-radius-sm);
  border: 1px solid var(--c-border);
  background: transparent;
  color: var(--c-muted);
  font-size: 0.875rem;
  cursor: pointer;
  transition: border-color var(--c-transition), color var(--c-transition);
}
.disc-cancel-btn:hover { border-color: var(--c-text); color: var(--c-text); }

.disc-post-btn {
  padding: 9px 22px;
  border-radius: var(--c-radius-sm);
  border: none;
  background: linear-gradient(90deg, var(--c-blue), var(--c-teal));
  color: #fff;
  font-size: 0.875rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: opacity var(--c-transition);
}
.disc-post-btn:hover:not(:disabled) { opacity: 0.88; }
.disc-post-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Thread card */
.disc-thread {
  padding: 24px 0;
  border-bottom: 1px solid var(--c-border);
}
.disc-thread:last-child { border-bottom: none; }

.disc-thread-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.disc-avatar {
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}
.disc-avatar-placeholder {
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-blue), var(--c-teal));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.disc-thread-meta {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.disc-thread-author,
.disc-thread-time,
.disc-thread-title,
.disc-thread-content,
.disc-reply-author,
.disc-reply-time,
.disc-reply-body,
.disc-like-btn,
.disc-reply-toggle-btn {
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
.disc-thread-author {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--c-text);
}
.disc-thread-time {
  font-size: 0.9rem;
  color: var(--c-muted);
}
.disc-pinned-badge {
  font-size: 0.75rem;
  padding: 3px 8px;
  border-radius: 10px;
  background: rgba(74,144,226,0.15);
  color: var(--c-blue);
  border: 1px solid rgba(74,144,226,0.3);
}

.disc-thread-body { margin-bottom: 14px; }
.disc-thread-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--c-text);
}
.disc-thread-content {
  font-size: 0.9rem;
  color: #ccc;
  line-height: 1.7;
}

/* Thread actions */
.disc-thread-actions {
  display: flex;
  gap: 12px;
  align-items: center;
}
.disc-like-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: 14px;
  border: 1px solid var(--c-border);
  background: transparent;
  color: var(--c-muted);
  font-size: 0.9rem;
  cursor: pointer;
  transition: border-color var(--c-transition), color var(--c-transition);
}
.disc-like-btn:hover,
.disc-like-btn.liked {
  border-color: var(--c-blue);
  color: var(--c-blue);
}
.disc-reply-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 14px;
  border: 1px solid var(--c-border);
  background: transparent;
  color: var(--c-muted);
  font-size: 0.9rem;
  cursor: pointer;
  transition: border-color var(--c-transition), color var(--c-transition);
}
.disc-reply-toggle-btn:hover {
  border-color: var(--c-teal);
  color: var(--c-teal);
}

/* Replies section */
.disc-replies-section {
  margin-top: 16px;
  padding-left: 20px;
  border-left: 2px solid var(--c-border);
}

.disc-replies-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.disc-reply {
  padding: 14px 0;
  border-bottom: 1px solid rgba(51,51,51,0.5);
}
.disc-reply:last-child { border-bottom: none; }

.disc-reply-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}
.disc-reply-author {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--c-text);
}
.disc-reply-time {
  font-size: 0.75rem;
  color: var(--c-muted);
}
.disc-reply-body {
  font-size: 0.875rem;
  color: #ccc;
  line-height: 1.65;
  margin-bottom: 8px;
}
.disc-reply-actions {
  display: flex;
  gap: 8px;
}

/* Reply form */
.disc-reply-form-container {
  padding: 14px 0 4px;
}
.disc-reply-signin {
  padding: 10px 0;
}
.disc-signin-link {
  background: none;
  border: none;
  color: var(--c-blue);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
}
.disc-signin-link:hover { text-decoration: underline; }

.disc-reply-form { }
.disc-reply-input-row {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 8px;
}
.disc-reply-input {
  flex: 1;
  padding: 9px 12px;
  background: var(--c-bg3);
  border: 1px solid var(--c-border);
  border-radius: var(--c-radius-sm);
  color: var(--c-text);
  font-size: 0.875rem;
  font-family: inherit;
  outline: none;
  resize: none;
  transition: border-color var(--c-transition);
  box-sizing: border-box;
}
.disc-reply-input:focus { border-color: var(--c-blue); }
.disc-reply-input::placeholder { color: #555; }

.disc-reply-form-actions {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 8px;
}
.disc-reply-char-count {
  font-size: 0.72rem;
  color: #555;
  margin-right: auto;
}
.disc-cancel-reply-btn {
  padding: 6px 14px;
  border-radius: var(--c-radius-sm);
  border: 1px solid var(--c-border);
  background: transparent;
  color: var(--c-muted);
  font-size: 0.8rem;
  cursor: pointer;
  transition: border-color var(--c-transition), color var(--c-transition);
}
.disc-cancel-reply-btn:hover { border-color: var(--c-text); color: var(--c-text); }

.disc-submit-reply-btn {
  padding: 6px 16px;
  border-radius: var(--c-radius-sm);
  border: none;
  background: linear-gradient(90deg, var(--c-blue), var(--c-teal));
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: opacity var(--c-transition);
}
.disc-submit-reply-btn:hover:not(:disabled) { opacity: 0.88; }
.disc-submit-reply-btn:disabled { opacity: 0.5; cursor: not-allowed; }

.disc-reply-error {
  font-size: 0.9rem;
  color: var(--c-red);
  min-height: 16px;
  margin-top: 4px;
}

/* Discussions empty */
.disc-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--c-muted);
}
.disc-empty svg {
  margin: 0 auto 16px;
  opacity: 0.25;
  display: block;
}
.disc-empty h3 {
  font-size: 1.2rem;
  margin-bottom: 8px;
  color: var(--c-text);
}
.disc-empty p { font-size: 0.9rem; }

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 968px) {
  .iris-topbar {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    overflow: visible;
  }
  .iris-hamburger { display: none; }
  .iris-lang-btn { display: none; }
  .iris-topbar-inner {
    height: auto;
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "brand actions"
      "nav nav";
    gap: 8px 10px;
    padding: 8px 16px 10px;
    overflow: visible;
  }
  .iris-topbar-brand { grid-area: brand; }
  .iris-topbar-right {
    grid-area: actions;
    min-width: 0;
    overflow: hidden;
  }
  .iris-signin-btn {
    font-size: 0.875rem;
  }

  .iris-nav {
    grid-area: nav;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    position: static;
    background: transparent;
    justify-content: flex-start;
    align-items: center;
    gap: 6px;
    padding: 0;
    overflow: visible;
    border-top: 1px solid rgba(255,255,255,0.12);
    padding-top: 8px;
  }
  .iris-nav .iris-nav-link {
    font-size: 0.92rem;
    padding: 7px 10px;
    border-radius: 999px;
    background: rgba(255,255,255,0.06);
    white-space: nowrap;
    flex: 0 0 auto;
  }
  .iris-nav .iris-nav-dropdown-trigger {
    display: inline-flex;
    align-items: center;
    gap: 8px;
  }
  .iris-nav .iris-nav-has-dropdown {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    flex: 0 0 auto;
  }
  .iris-nav .iris-nav-dropdown-trigger svg {
    transition: transform 0.2s ease;
  }
  .iris-nav .iris-nav-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 50%;
    right: auto;
    transform: translateX(-50%);
    opacity: 0;
    pointer-events: none;
    box-shadow: 0 14px 30px rgba(0,0,0,0.62);
    background: rgba(8, 8, 8, 0.98);
    border: 1px solid rgba(255,255,255,0.18);
    border-radius: 10px;
    padding: 8px 10px;
    margin-top: 0;
    text-align: center;
    min-width: 184px;
    z-index: 10050;
  }
  .iris-nav .iris-nav-has-dropdown.mobile-open .iris-nav-dropdown {
    display: flex;
    flex-direction: column;
    opacity: 1;
    pointer-events: all;
  }
  .iris-nav .iris-nav-has-dropdown.desktop-open .iris-nav-dropdown {
    display: flex;
    flex-direction: column;
    opacity: 1;
    pointer-events: all;
  }
  .iris-nav .iris-nav-has-dropdown.mobile-open .iris-nav-dropdown-trigger svg {
    transform: rotate(180deg);
  }
  .iris-nav .iris-nav-has-dropdown:hover .iris-nav-dropdown,
  .iris-nav .iris-nav-has-dropdown:focus-within .iris-nav-dropdown {
    opacity: 0;
    pointer-events: none;
  }
  .iris-nav .iris-nav-has-dropdown.mobile-open:hover .iris-nav-dropdown,
  .iris-nav .iris-nav-has-dropdown.mobile-open:focus-within .iris-nav-dropdown {
    opacity: 1;
    pointer-events: all;
  }
  .iris-footer-inner {
    grid-template-columns: 1fr;
    gap: 44px;
    padding: 0 24px;
  }
}

@media (max-width: 480px) {
  .auth-modal-box { padding: 24px 20px; }
  .reviews-summary { padding: 16px; }
  .review-form-wrap { padding: 20px 16px; }
  .disc-replies-section { padding-left: 12px; }
  .iris-topbar-inner { padding: 0 16px; }
  .iris-topbar-right { display: none; }
  .iris-user-name { display: none; }
  .iris-notify-bar { font-size: 0.8rem; padding: 8px 44px 8px 12px; }
  .iris-footer-nav { gap: 16px; }
  .iris-footer-inner { padding: 0 16px; }
}

/* =====================================================
   AINSTEC LOGO
   ===================================================== */
.iris-topbar-brand {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}
.iris-brand-logo {
  height: 28px;
  width: auto;
  display: block;
}

.iris-footer-brand {
  display: inline-flex;
  align-items: center;
  margin-bottom: 14px;
}
.iris-footer-logo {
  height: 34px;
  width: auto;
  display: block;
}

@media (max-width: 968px) {
  .iris-brand-logo { height: 24px; }
  .iris-footer-logo { height: 30px; }
}

/* =====================================================
   FOOTER MULTI-COLUMN NAV
   ===================================================== */
.iris-footer-cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.iris-footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.iris-footer-col-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--c-text);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.iris-footer-col .iris-footer-nav-link {
  font-size: 0.875rem;
  font-weight: 400;
}

@media (max-width: 768px) {
  .iris-footer-cols { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}
@media (max-width: 480px) {
  .iris-footer-cols { grid-template-columns: repeat(2, 1fr); gap: 16px; }
}

/* =====================================================
   FOUNDER VIDEO SECTION
   ===================================================== */
.founder-section .feature-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

@media (max-width: 968px) {
  .founder-section .feature-content {
    grid-template-columns: 1fr;
  }
}

.founder-label {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-teal);
  margin-bottom: 14px;
}

.founder-section h2 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--c-text);
}

.founder-section .feature-text p {
  color: var(--c-muted);
  line-height: 1.75;
  margin-bottom: 1.25em;
}

.founder-sig {
  text-align: right;
  font-weight: 600;
  color: var(--c-text);
  margin-top: 24px;
  font-size: 0.9375rem;
  line-height: 1.6;
}

.founder-video-wrap {
  width: 100%;
}

.founder-yt-embed {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  border-radius: 12px;
  background: #000;
}

.founder-yt-embed iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 12px;
}