/* ============================================================
   فدیا — استایل‌های اختصاصی بخش بیلبوردها و تبلیغات محیطی
   شیک، مدرن، مینیمال، Glassmorphism، فوق‌العاده کاربردی و کاملاً ریسپانسیو
   ============================================================ */

.section-billboards {
  padding-bottom: 5rem;
}

/* مسیر صفحه (Breadcrumb) */
.section-billboards .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  font-size: 0.86rem;
  color: var(--text-muted, #64748b);
}

.section-billboards .breadcrumb a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

.section-billboards .breadcrumb a:hover {
  color: var(--accent, #3b82f6);
}

.section-billboards .breadcrumb__sep {
  opacity: 0.4;
}

.section-billboards .breadcrumb__current {
  color: var(--text, #0f172a);
  font-weight: 600;
}

/* سرایند صفحه (Page Header) */
.section-billboards .page-header {
  margin-bottom: 1.75rem;
}

.billboard-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.9rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent, #3b82f6);
  background: color-mix(in srgb, var(--accent, #3b82f6) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent, #3b82f6) 25%, transparent);
  margin-bottom: 0.65rem;
}

.page-header__title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 3.2vw, 2.3rem);
  font-family: var(--font-display, inherit);
  font-weight: 800;
  line-height: 1.35;
  color: var(--text, #0f172a);
}

.page-header__desc {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text-muted, #64748b);
  max-width: 680px;
}

/* ============================================================
   نوار مشاوره و رزرو سریع (Consultation Bar)
   ============================================================ */
.billboard-consult-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.4rem 1.85rem;
  margin: 1.75rem 0 2rem;
  border-radius: 22px;
  background: color-mix(in srgb, var(--surface, #ffffff) 85%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent, #3b82f6) 28%, var(--glass-border));
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 12px 32px color-mix(in srgb, var(--accent, #3b82f6) 6%, transparent);
}

.billboard-consult-bar__info {
  display: flex;
  align-items: center;
  gap: 1.15rem;
}

.billboard-consult-bar__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: color-mix(in srgb, var(--accent, #3b82f6) 15%, transparent);
  color: var(--accent, #3b82f6);
  border: 1px solid color-mix(in srgb, var(--accent, #3b82f6) 30%, transparent);
  flex-shrink: 0;
  box-shadow: 0 4px 14px color-mix(in srgb, var(--accent, #3b82f6) 20%, transparent);
}

.billboard-consult-bar__status {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  font-weight: 700;
  color: #10b981;
  margin-bottom: 0.2rem;
}

.billboard-consult-bar__title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text, #0f172a);
}

.billboard-consult-bar__subtitle {
  margin: 0.25rem 0 0;
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--text-muted, #64748b);
}

.billboard-consult-bar__cta {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.6rem;
  font-size: 0.94rem;
  font-weight: 700;
  box-shadow: 0 6px 20px color-mix(in srgb, var(--accent, #3b82f6) 35%, transparent);
  direction: rtl;
}

.billboard-consult-bar__cta-label {
  display: inline-block;
  direction: rtl;
}

.billboard-consult-bar__cta-phone {
  display: inline-block !important;
  direction: ltr !important;
  unicode-bidi: isolate !important;
  font-family: var(--font-display, inherit);
  letter-spacing: 0.04em;
  text-align: left;
}

@media (max-width: 768px) {
  .billboard-consult-bar {
    padding: 1.25rem 1.25rem;
    gap: 1.15rem;
  }
  .billboard-consult-bar__info {
    gap: 0.85rem;
  }
  .billboard-consult-bar__icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
  }
  .billboard-consult-bar__cta {
    width: 100%;
    justify-content: center;
  }
}

/* انیمیشن نقطه سبز زنده */
.live-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulse-ring 2s infinite;
}

.live-dot--sm {
  width: 6px;
  height: 6px;
}

@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* ============================================================
   فیلتر موقعیت‌ها (Filter Pills)
   ============================================================ */
.billboard-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 2.25rem;
}

.billboard-filter-btn {
  padding: 0.55rem 1.25rem;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 600;
  cursor: pointer;
  background: color-mix(in srgb, var(--surface, #ffffff) 75%, transparent);
  border: 1px solid var(--glass-border, rgba(0, 0, 0, 0.08));
  color: var(--text-muted, #475569);
  transition: all 0.2s ease;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.billboard-filter-btn:hover {
  border-color: var(--accent, #3b82f6);
  color: var(--accent, #3b82f6);
  transform: translateY(-1px);
}

.billboard-filter-btn.is-active {
  background: var(--accent, #3b82f6);
  border-color: var(--accent, #3b82f6);
  color: #ffffff !important;
  box-shadow: 0 4px 14px color-mix(in srgb, var(--accent, #3b82f6) 35%, transparent);
}

/* ============================================================
   شبکه کارت‌های بیلبورد (Billboards Grid)
   ============================================================ */
.billboards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
  margin-bottom: 4rem;
  width: 100%;
  min-width: 0;
}

@media (max-width: 1100px) {
  .billboards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
  }
}

@media (max-width: 768px) {
  .billboards-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 1.25rem;
  }
}

/* کارت هر بیلبورد */
.billboard-card {
  display: flex;
  flex-direction: column;
  border-radius: 22px;
  overflow: hidden;
  background: color-mix(in srgb, var(--surface, #ffffff) 85%, transparent);
  border: 1px solid var(--glass-border, rgba(0, 0, 0, 0.08));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 6px 20px color-mix(in srgb, var(--text, #000) 3%, transparent);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.35s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.25s ease;
  min-width: 0;
  max-width: 100%;
  width: 100%;
  box-sizing: border-box;
}

.billboard-card:hover {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--accent, #3b82f6) 42%, var(--glass-border));
  box-shadow: 0 20px 42px color-mix(in srgb, var(--text, #000) 9%, transparent);
}

.billboard-card__media-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #0f172a;
}

.billboard-card__media-link {
  display: block;
  width: 100%;
  height: 100%;
}

.billboard-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.billboard-card:hover .billboard-card__img {
  transform: scale(1.06);
}

.billboard-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,0) 40%, rgba(0,0,0,0.6) 100%);
  pointer-events: none;
}

/* بج‌های روی تصویر */
.billboard-badge {
  position: absolute;
  z-index: 2;
  font-size: 0.74rem;
  font-weight: 700;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.billboard-badge--number {
  top: 12px;
  right: 12px;
  background: rgba(15, 23, 42, 0.78);
  color: #f8fafc;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.billboard-badge--status {
  top: 12px;
  left: 12px;
  background: rgba(16, 185, 129, 0.88);
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.billboard-badge--dimension {
  bottom: 12px;
  right: 12px;
  background: rgba(15, 23, 42, 0.78);
  color: #f1f5f9;
  border: 1px solid rgba(255, 255, 255, 0.15);
  direction: ltr;
}

/* بدنه کارت */
.billboard-card__body {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  padding: 1.35rem 1.45rem 1.45rem;
  gap: 0.85rem;
  min-width: 0;
  box-sizing: border-box;
}

.billboard-card__title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 800;
  line-height: 1.45;
  min-width: 0;
  word-break: break-word;
  overflow-wrap: break-word;
}

.billboard-card__title a {
  color: var(--text, #0f172a);
  text-decoration: none;
  transition: color 0.2s ease;
}

.billboard-card__title a:hover {
  color: var(--accent, #3b82f6);
}

.billboard-card__location {
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
  font-size: 0.85rem;
  line-height: 1.5;
  color: var(--text-muted, #64748b);
  min-width: 0;
  word-break: break-word;
  overflow-wrap: break-word;
}

.billboard-card__location svg {
  flex-shrink: 0;
  margin-top: 0.2rem;
}

/* گرید مشخصات فنی سازه */
.billboard-specs-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
  margin: 0.25rem 0;
  width: 100%;
  min-width: 0;
}

.billboard-spec-chip {
  min-width: 0;
  max-width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0.5rem 0.65rem;
  border-radius: 12px;
  background: color-mix(in srgb, var(--surface, #ffffff) 65%, transparent);
  border: 1px solid var(--glass-border, rgba(0, 0, 0, 0.07));
  box-sizing: border-box;
  overflow: hidden;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.billboard-card:hover .billboard-spec-chip {
  background: color-mix(in srgb, var(--surface, #ffffff) 82%, transparent);
}

.billboard-spec-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted, #64748b);
  margin-bottom: 0.2rem;
  display: block;
  min-width: 0;
  line-height: 1.3;
}

.billboard-spec-val {
  font-size: 0.81rem;
  font-weight: 700;
  color: var(--text, #0f172a);
  line-height: 1.45;
  min-width: 0;
  word-break: break-word;
  overflow-wrap: anywhere;
}

.billboard-card__desc {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--text-muted, #64748b);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-word;
  overflow-wrap: break-word;
}

/* فوتر و دکمه‌های اقدام */
.billboard-card__footer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--glass-border, rgba(0,0,0,0.08));
  min-width: 0;
}

.billboard-card__btn-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.billboard-card__btn-primary {
  flex: 1 1 170px;
  padding: 0.6rem 0.9rem;
  font-size: 0.84rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border-radius: 999px;
  text-decoration: none;
  min-width: 0;
  white-space: nowrap;
}

.billboard-card__map-links {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-shrink: 0;
}

.billboard-map-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.45rem 0.65rem;
  height: 34px;
  border-radius: 999px;
  border: 1px solid var(--glass-border, rgba(0,0,0,0.1));
  background: color-mix(in srgb, var(--surface, #ffffff) 80%, transparent);
  color: var(--text, #334155);
  text-decoration: none;
  font-size: 0.75rem;
  font-weight: 700;
  transition: all 0.2s ease;
}

.billboard-map-icon-btn:hover {
  background: var(--accent, #3b82f6);
  border-color: var(--accent, #3b82f6);
  color: #ffffff;
}

/* خط تماس مستقیم اختصاصی */
.billboard-card__call-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.55rem 0.85rem;
  border-radius: 12px;
  background: color-mix(in srgb, var(--accent, #3b82f6) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent, #3b82f6) 18%, transparent);
  text-decoration: none;
  transition: all 0.2s ease;
  min-width: 0;
  flex-wrap: wrap;
}

.billboard-card__call-line:hover {
  background: color-mix(in srgb, var(--accent, #3b82f6) 14%, transparent);
  border-color: var(--accent, #3b82f6);
}

.billboard-card__call-label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent, #3b82f6);
  min-width: 0;
  white-space: nowrap;
}

.billboard-card__call-label svg {
  flex-shrink: 0;
}

.billboard-card__call-number {
  font-size: 0.86rem;
  font-weight: 800;
  color: var(--accent, #3b82f6);
  white-space: nowrap;
  display: inline-block !important;
  direction: ltr !important;
  unicode-bidi: isolate !important;
  text-align: left !important;
}

/* ============================================================
   صفحه جزئیات هر بیلبورد (Billboard Detail Page)
   ============================================================ */
.billboard-detail-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 2rem;
  margin-bottom: 2.5rem;
}

@media (max-width: 900px) {
  .billboard-detail-hero {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

.billboard-detail__media {
  position: relative;
  border-radius: 22px;
  overflow: hidden;
  box-shadow: 0 16px 36px color-mix(in srgb, var(--text, #000) 8%, transparent);
  background: #0f172a;
  aspect-ratio: 16 / 11;
}

.billboard-detail__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.billboard-detail__info-card {
  padding: 1.75rem 2rem;
  border-radius: 22px;
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
  background: color-mix(in srgb, var(--surface, #ffffff) 85%, transparent);
  border: 1px solid var(--glass-border, rgba(0,0,0,0.08));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.billboard-specs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.billboard-specs-table tr {
  border-bottom: 1px solid var(--glass-border, rgba(0,0,0,0.06));
}

.billboard-specs-table th {
  text-align: right;
  padding: 0.75rem 0.5rem 0.75rem 0;
  color: var(--text-muted, #64748b);
  font-weight: 500;
  width: 38%;
}

.billboard-specs-table td {
  text-align: right;
  padding: 0.75rem 0 0.75rem 0.5rem;
  color: var(--text, #0f172a);
  font-weight: 600;
}

/* دکمه‌های مسیریابی جزئیات */
.billboard-routing-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.billboard-routing-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.15rem;
  border-radius: 999px;
  border: 1px solid var(--glass-border, rgba(0,0,0,0.1));
  background: color-mix(in srgb, var(--surface, #ffffff) 75%, transparent);
  color: var(--text, #334155);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
}

.billboard-routing-btn:hover {
  background: var(--accent, #3b82f6);
  border-color: var(--accent, #3b82f6);
  color: #ffffff;
}

/* دکمه تماس بزرگ جزئیات */
.billboard-main-call-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  width: 100%;
  padding: 0.85rem 1.5rem;
  border-radius: 999px;
  background: var(--accent, #3b82f6);
  color: #fff !important;
  font-weight: 700;
  font-size: 1.02rem;
  text-decoration: none;
  box-shadow: 0 8px 24px color-mix(in srgb, var(--accent, #3b82f6) 35%, transparent);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  direction: rtl;
}

.billboard-main-call-btn__label {
  display: inline-block;
  direction: rtl;
}

.billboard-main-call-btn__phone {
  display: inline-block !important;
  direction: ltr !important;
  unicode-bidi: isolate !important;
  font-family: var(--font-display, inherit);
  letter-spacing: 0.04em;
  text-align: left;
}

.billboard-main-call-btn:hover {
  transform: translateY(-2px);
  color: #fff;
  box-shadow: 0 12px 28px color-mix(in srgb, var(--accent, #3b82f6) 45%, transparent);
}

/* ============================================================
   بلوک راهنمای جامع سئو (Guide Section)
   ============================================================ */
.billboard-guide-section {
  margin-top: 3.5rem;
  padding: clamp(1.5rem, 4vw, 2.75rem);
  border-radius: 24px;
  background: color-mix(in srgb, var(--surface, #ffffff) 85%, transparent);
  border: 1px solid var(--glass-border, rgba(0,0,0,0.08));
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  line-height: 1.9;
}

.billboard-guide-header {
  margin-bottom: 1.75rem;
}

.billboard-guide-title {
  margin: 0.5rem 0 0.85rem;
  font-size: clamp(1.3rem, 2.4vw, 1.75rem);
  font-weight: 800;
  line-height: 1.4;
  color: var(--text, #0f172a);
}

.billboard-guide-lead {
  font-size: clamp(0.92rem, 1.4vw, 1rem);
  line-height: 1.85;
  color: var(--text-muted, #475569);
  margin-bottom: 0;
  max-width: 960px;
}

.billboard-guide-section h2 {
  margin-top: 0;
  margin-bottom: 1rem;
  font-size: clamp(1.3rem, 2.5vw, 1.75rem);
  color: var(--text, #0f172a);
}

.billboard-guide-section h3 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  font-size: 1.15rem;
  color: var(--text, #0f172a);
}

.billboard-guide-section p {
  color: var(--text-muted, #475569);
  margin-bottom: 1.15rem;
  font-size: 0.95rem;
}

/* کارت‌های ارزش و آمار راهنما */
.billboard-features-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.25rem;
  margin: 2rem 0;
}

@media (max-width: 1024px) {
  .billboard-features-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .billboard-features-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 1rem;
  }
}

.billboard-feature-card {
  padding: 1.35rem;
  border-radius: 18px;
  background: color-mix(in srgb, var(--surface, #ffffff) 65%, transparent);
  border: 1px solid var(--glass-border, rgba(0, 0, 0, 0.08));
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.billboard-feature-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent, #3b82f6) 45%, transparent);
  box-shadow: 0 10px 24px color-mix(in srgb, var(--accent, #3b82f6) 8%, transparent);
}

.billboard-feature-card__icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: color-mix(in srgb, var(--accent, #3b82f6) 12%, transparent);
  color: var(--accent, #3b82f6);
  border: 1px solid color-mix(in srgb, var(--accent, #3b82f6) 24%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  flex-shrink: 0;
}

.billboard-feature-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  color: var(--text, #0f172a);
}

.billboard-feature-card__desc {
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--text-muted, #475569);
  margin: 0;
}

.billboard-guide-action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  padding: 1.25rem 1.5rem;
  border-radius: 18px;
  background: color-mix(in srgb, var(--accent, #3b82f6) 6%, var(--surface, #ffffff));
  border: 1px solid color-mix(in srgb, var(--accent, #3b82f6) 20%, transparent);
  margin-top: 1.5rem;
}

.billboard-guide-action__text {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text, #0f172a);
}

.billboard-guide-action__btn {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.4rem;
  font-size: 0.9rem;
  white-space: nowrap;
}

@media (max-width: 768px) {
  .billboard-guide-action {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
  }
  .billboard-guide-action__btn {
    justify-content: center;
  }
}

.billboard-guide-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0.75rem;
  margin: 1.25rem 0;
}

.billboard-guide-list li {
  position: relative;
  padding-right: 1.75rem;
  color: var(--text-muted, #475569);
  font-size: 0.92rem;
  line-height: 1.8;
}

.billboard-guide-list li::before {
  content: "✓";
  position: absolute;
  right: 0;
  top: 0;
  color: var(--accent, #3b82f6);
  font-weight: 800;
  font-size: 1.05rem;
}

/* ============================================================
   واکنش‌گرایی تکمیلی کارت‌ها و موبایل (Mobile & Responsive Refinements)
   ============================================================ */
@media (max-width: 480px) {
  .billboard-card__body {
    padding: 1.15rem 1rem 1.25rem;
    gap: 0.75rem;
  }

  .billboard-specs-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.45rem;
  }

  .billboard-spec-chip {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.55rem 0.75rem;
  }

  .billboard-spec-label {
    margin-bottom: 0;
    flex-shrink: 0;
    font-size: 0.76rem;
  }

  .billboard-spec-val {
    font-size: 0.82rem;
    text-align: left;
  }

  .billboard-card__btn-group {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
  }

  .billboard-card__btn-primary {
    width: 100%;
  }

  .billboard-card__map-links {
    width: 100%;
    justify-content: space-between;
  }

  .billboard-map-icon-btn {
    flex: 1;
    text-align: center;
  }
}

@media (max-width: 400px) {
  .billboard-badge {
    font-size: 0.68rem;
    padding: 0.22rem 0.55rem;
  }

  .billboard-badge--number {
    top: 8px;
    right: 8px;
  }

  .billboard-badge--status {
    top: 8px;
    left: 8px;
  }

  .billboard-badge--dimension {
    bottom: 8px;
    right: 8px;
  }
}

/* ============================================================
   بخش‌های تکمیلی سئو بیلبورد: سازه‌های امیرکلا، مشخصات فنی، مقایسه، مراحل، FAQ و مقالات
   طراحی شیک، مدرن، Glassmorphism، کاملاً هماهنگ با تم سایت و ۱۰۰٪ ریسپانسیو
   ============================================================ */

/* 1. سازه‌ها و مقالات کمربندی امیرکلا */
.amirkala-structures-header {
  margin: 1.75rem 0 1rem;
}

.amirkala-structures-header h3 {
  margin: 0 0 0.4rem;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text, #0f172a);
}

.amirkala-structures-header p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--text-muted, #475569);
}

.amirkala-structures-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0 2rem;
}

@media (max-width: 1024px) {
  .amirkala-structures-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .amirkala-structures-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.amirkala-card {
  padding: 1.35rem;
  border-radius: 18px;
  background: color-mix(in srgb, var(--surface, #ffffff) 70%, transparent);
  border: 1px solid var(--glass-border, rgba(0, 0, 0, 0.08));
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.amirkala-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent, #3b82f6) 45%, transparent);
  box-shadow: 0 12px 28px color-mix(in srgb, var(--accent, #3b82f6) 10%, transparent);
}

.amirkala-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
}

.amirkala-card__badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 700;
  background: color-mix(in srgb, var(--accent, #3b82f6) 12%, transparent);
  color: var(--accent, #3b82f6);
  border: 1px solid color-mix(in srgb, var(--accent, #3b82f6) 24%, transparent);
}

.amirkala-card__area {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted, #475569);
  background: color-mix(in srgb, var(--surface, #ffffff) 80%, transparent);
  padding: 0.2rem 0.55rem;
  border-radius: 6px;
  border: 1px solid var(--glass-border);
}

.amirkala-card__title {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.45;
}

.amirkala-card__title a {
  color: var(--text, #0f172a);
  text-decoration: none;
  transition: color 0.2s ease;
}

.amirkala-card__title a:hover {
  color: var(--accent, #3b82f6);
}

.amirkala-card__spec {
  font-size: 0.82rem;
  color: var(--accent, #3b82f6);
  font-weight: 600;
  margin: 0 0 0.65rem;
  line-height: 1.5;
}

.amirkala-card__desc {
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--text-muted, #475569);
  margin: 0 0 1rem;
  flex-grow: 1;
}

.amirkala-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--accent, #3b82f6);
  text-decoration: none;
  margin-top: auto;
  transition: transform 0.2s ease, gap 0.2s ease;
}

.amirkala-card__link:hover {
  gap: 0.6rem;
  color: var(--accent-2, var(--accent));
}

.amirkala-resources {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--glass-border);
}

.amirkala-resources__title {
  margin: 0 0 1rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text, #0f172a);
}

.amirkala-resources__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

@media (max-width: 768px) {
  .amirkala-resources__grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.amirkala-resource-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.85rem 1.1rem;
  border-radius: 14px;
  background: color-mix(in srgb, var(--surface, #ffffff) 60%, transparent);
  border: 1px solid var(--glass-border);
  text-decoration: none;
  color: var(--text, #0f172a);
  font-size: 0.88rem;
  line-height: 1.5;
  transition: all 0.2s ease;
}

.amirkala-resource-item svg {
  color: var(--accent, #3b82f6);
  flex-shrink: 0;
}

.amirkala-resource-item:hover {
  border-color: var(--accent, #3b82f6);
  color: var(--accent, #3b82f6);
  transform: translateX(-4px);
  background: color-mix(in srgb, var(--accent, #3b82f6) 6%, var(--surface, #ffffff));
}

/* 2. جدول مشخصات فنی و استعلام سازه‌ها (کاملاً ریسپانسیو و بدون قیمت) */
.billboard-table-container {
  position: relative;
  margin: 1.75rem 0 1rem;
}

.table-scroll-hint {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  color: var(--accent, #3b82f6);
  margin-bottom: 0.65rem;
  font-weight: 600;
}

@media (max-width: 768px) {
  .table-scroll-hint {
    display: flex;
  }
}

.billboard-pricing-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: 20px;
  border: 1px solid var(--glass-border);
  background: color-mix(in srgb, var(--surface, #ffffff) 80%, transparent);
  box-shadow: 0 4px 20px color-mix(in srgb, var(--text, #000) 3%, transparent);
}

.billboard-pricing-table {
  width: 100%;
  border-collapse: collapse;
  text-align: right;
  font-size: 0.92rem;
  min-width: 760px;
}

.billboard-pricing-table th {
  padding: 1.1rem 1.25rem;
  background: color-mix(in srgb, var(--accent, #3b82f6) 10%, transparent);
  color: var(--text, #0f172a);
  font-weight: 700;
  border-bottom: 1px solid var(--glass-border);
  white-space: nowrap;
}

.billboard-pricing-table td {
  padding: 1.15rem 1.25rem;
  border-bottom: 1px solid color-mix(in srgb, var(--glass-border) 60%, transparent);
  color: var(--text, #0f172a);
  vertical-align: middle;
}

.billboard-pricing-table tr:last-child td {
  border-bottom: none;
}

.billboard-pricing-table tr:hover td {
  background: color-mix(in srgb, var(--accent, #3b82f6) 4%, transparent);
}

.pricing-structure-name {
  font-weight: 700;
  color: var(--text, #0f172a);
  display: block;
  font-size: 0.95rem;
}

.pricing-structure-sub {
  font-size: 0.8rem;
  color: var(--text-muted, #64748b);
  display: block;
  margin-top: 0.2rem;
}

.pricing-spec-val {
  font-weight: 600;
  color: var(--text, #0f172a);
  white-space: nowrap;
}

.pricing-status-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent, #3b82f6) 10%, transparent);
  color: var(--accent, #3b82f6);
  border: 1px solid color-mix(in srgb, var(--accent, #3b82f6) 20%, transparent);
  white-space: nowrap;
}

.pricing-cta-btn {
  padding: 0.45rem 1rem !important;
  font-size: 0.82rem !important;
  font-weight: 700;
  white-space: nowrap;
  display: inline-flex !important;
  align-items: center;
  gap: 0.35rem;
}

.pricing-table-note {
  font-size: 0.86rem;
  line-height: 1.7;
  color: var(--text-muted, #64748b);
  margin-top: 1rem;
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  padding: 1rem 1.25rem;
  border-radius: 14px;
  background: color-mix(in srgb, var(--accent, #3b82f6) 6%, var(--surface, #ffffff));
  border: 1px solid color-mix(in srgb, var(--accent, #3b82f6) 18%, transparent);
}

.pricing-table-note svg {
  color: var(--accent, #3b82f6);
  flex-shrink: 0;
  margin-top: 0.15rem;
}

/* 3. گرید مقایسه تخصصی سازه‌ها */
.billboard-matrix-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.25rem;
  margin: 1.75rem 0;
}

@media (max-width: 1024px) {
  .billboard-matrix-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .billboard-matrix-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.matrix-card {
  padding: 1.5rem;
  border-radius: 20px;
  background: color-mix(in srgb, var(--surface, #ffffff) 75%, transparent);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.matrix-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent, #3b82f6) 45%, transparent);
  box-shadow: 0 12px 28px color-mix(in srgb, var(--accent, #3b82f6) 10%, transparent);
}

.matrix-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: color-mix(in srgb, var(--accent, #3b82f6) 12%, transparent);
  color: var(--accent, #3b82f6);
  border: 1px solid color-mix(in srgb, var(--accent, #3b82f6) 24%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.15rem;
  flex-shrink: 0;
}

.matrix-card__title {
  font-size: 1.1rem;
  font-weight: 800;
  margin: 0 0 0.6rem;
  color: var(--text, #0f172a);
}

.matrix-card__desc {
  font-size: 0.88rem;
  line-height: 1.65;
  color: var(--text-muted, #64748b);
  flex-grow: 1;
  margin-bottom: 1.15rem;
}

.matrix-card__points {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.82rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  color: var(--text, #0f172a);
}

.matrix-card__points li {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  line-height: 1.5;
}

.matrix-card__points li::before {
  content: "✓";
  color: #10b981;
  font-weight: bold;
  font-size: 0.95rem;
}

/* 4. فرآیند ۵ مرحله‌ای اکران */
.billboard-steps-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1.15rem;
  margin: 2rem 0;
}

@media (max-width: 1024px) {
  .billboard-steps-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .billboard-steps-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.step-card {
  padding: 1.4rem;
  border-radius: 18px;
  background: color-mix(in srgb, var(--surface, #ffffff) 70%, transparent);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: relative;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.step-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent, #3b82f6) 45%, transparent);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 12px;
  background: var(--accent, #3b82f6);
  color: #ffffff;
  font-weight: 800;
  font-size: 0.95rem;
  margin-bottom: 0.85rem;
  box-shadow: 0 4px 12px color-mix(in srgb, var(--accent, #3b82f6) 30%, transparent);
}

.step-title {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  color: var(--text, #0f172a);
  line-height: 1.45;
}

.step-desc {
  font-size: 0.84rem;
  line-height: 1.65;
  color: var(--text-muted, #64748b);
  margin: 0;
}

/* 5. آکاردئون پرسش‌های متداول (FAQ) */
.billboard-faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin: 1.75rem 0 1rem;
}

.billboard-faq-item {
  border-radius: 18px;
  border: 1px solid var(--glass-border);
  background: color-mix(in srgb, var(--surface, #ffffff) 75%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
  transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.billboard-faq-item:hover {
  border-color: color-mix(in srgb, var(--accent, #3b82f6) 35%, transparent);
}

.billboard-faq-item[open] {
  border-color: color-mix(in srgb, var(--accent, #3b82f6) 50%, transparent);
  background: color-mix(in srgb, var(--surface, #ffffff) 92%, transparent);
  box-shadow: 0 6px 20px color-mix(in srgb, var(--accent, #3b82f6) 8%, transparent);
}

.billboard-faq-summary {
  padding: 1.15rem 1.45rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text, #0f172a);
  user-select: none;
}

.billboard-faq-summary::-webkit-details-marker {
  display: none;
}

.billboard-faq-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  transition: transform 0.25s ease;
  color: var(--accent, #3b82f6);
}

.billboard-faq-item[open] .billboard-faq-icon {
  transform: rotate(180deg);
}

.billboard-faq-body {
  padding: 0 1.45rem 1.35rem;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--text-muted, #475569);
  border-top: 1px solid color-mix(in srgb, var(--glass-border) 60%, transparent);
  padding-top: 1rem;
}

.billboard-faq-body p {
  margin: 0;
}

/* 6. پایگاه دانش و مقالات بیلبورد */
.billboard-articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 1.35rem;
  margin: 2rem 0 1rem;
}

.billboard-article-card {
  border-radius: 20px;
  border: 1px solid var(--glass-border);
  background: color-mix(in srgb, var(--surface, #ffffff) 80%, transparent);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
  text-decoration: none;
  color: inherit;
}

.billboard-article-card:hover {
  transform: translateY(-5px);
  border-color: color-mix(in srgb, var(--accent, #3b82f6) 50%, transparent);
  box-shadow: 0 14px 32px color-mix(in srgb, var(--text, #000) 8%, transparent);
}

.billboard-article-card__media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: #0f172a;
}

.billboard-article-card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.billboard-article-card:hover .billboard-article-card__img {
  transform: scale(1.06);
}

.billboard-article-card__time {
  position: absolute;
  bottom: 8px;
  left: 8px;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(8px);
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-size: 0.72rem;
  color: #cbd5e1;
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.billboard-article-card__body {
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.billboard-article-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 0.55rem;
  line-height: 1.5;
}

.billboard-article-card__title a {
  color: var(--text, #0f172a);
  text-decoration: none;
  transition: color 0.2s ease;
}

.billboard-article-card__title a:hover {
  color: var(--accent, #3b82f6);
}

.billboard-article-card__excerpt {
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--text-muted, #64748b);
  margin: 0 0 1rem;
  flex-grow: 1;
}

.billboard-article-card__link {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--accent, #3b82f6);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  text-decoration: none;
  transition: gap 0.2s ease;
}

.billboard-article-card__link:hover {
  gap: 0.55rem;
}

/* 7. خوشه‌های موضوعی سئو */
.billboard-topic-clusters {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--glass-border);
}

@media (max-width: 1024px) {
  .billboard-topic-clusters {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .billboard-topic-clusters {
    grid-template-columns: minmax(0, 1fr);
  }
}

.billboard-topic-col {
  background: color-mix(in srgb, var(--surface, #ffffff) 65%, transparent);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  padding: 1.35rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.billboard-topic-col__head {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--accent, #3b82f6);
  margin: 0 0 1rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.billboard-topic-col__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.billboard-topic-col__list a {
  font-size: 0.86rem;
  color: var(--text, #0f172a);
  text-decoration: none;
  transition: color 0.2s ease, transform 0.2s ease;
  display: inline-block;
  line-height: 1.5;
}

.billboard-topic-col__list a:hover {
  color: var(--accent, #3b82f6);
  transform: translateX(-4px);
}

/* 8. گرید عوامل قیمت‌گذاری */
.billboard-factors-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  margin: 1.75rem 0;
}

@media (max-width: 1024px) {
  .billboard-factors-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .billboard-factors-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.factor-card {
  padding: 1.35rem;
  border-radius: 18px;
  background: color-mix(in srgb, var(--surface, #ffffff) 70%, transparent);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.factor-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent, #3b82f6) 45%, transparent);
}

.factor-card__icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: color-mix(in srgb, var(--accent, #3b82f6) 12%, transparent);
  color: var(--accent, #3b82f6);
  border: 1px solid color-mix(in srgb, var(--accent, #3b82f6) 24%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 0.85rem;
  flex-shrink: 0;
}

.factor-card__title {
  font-size: 1.02rem;
  font-weight: 700;
  margin: 0 0 0.45rem;
  color: var(--text, #0f172a);
}

.factor-card__desc {
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--text-muted, #475569);
  margin: 0;
}

/* 9. گرید معیارهای انتخاب سازه */
.billboard-criteria-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  margin: 1.75rem 0;
}

@media (max-width: 1024px) {
  .billboard-criteria-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .billboard-criteria-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.criteria-card {
  padding: 1.35rem;
  border-radius: 18px;
  background: color-mix(in srgb, var(--surface, #ffffff) 70%, transparent);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.criteria-card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent, #3b82f6) 45%, transparent);
}

.criteria-card__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: color-mix(in srgb, var(--accent, #3b82f6) 14%, transparent);
  color: var(--accent, #3b82f6);
  font-weight: 800;
  font-size: 0.88rem;
  margin-bottom: 0.75rem;
}

.criteria-card__title {
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 0.45rem;
  color: var(--text, #0f172a);
}

.criteria-card__desc {
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--text-muted, #475569);
  margin: 0;
}

/* 10. گرید اصول طراحی بیلبورد */
.billboard-principles-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.15rem;
  margin: 1.75rem 0;
}

@media (max-width: 1024px) {
  .billboard-principles-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .billboard-principles-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

.principle-card {
  padding: 1.25rem 1.35rem;
  border-radius: 16px;
  background: color-mix(in srgb, var(--surface, #ffffff) 65%, transparent);
  border: 1px solid var(--glass-border);
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.principle-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent, #3b82f6) 40%, transparent);
}

.principle-card__check {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: color-mix(in srgb, #10b981 15%, transparent);
  color: #10b981;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: bold;
  flex-shrink: 0;
  margin-top: 0.15rem;
}

.principle-card__text {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--text, #0f172a);
  font-weight: 600;
  margin: 0;
}