:root {
  /* پالت رنگی جدید با تمرکز بر آبی */
  --bg: #F8F9FA;
  --bg-soft: #FFFFFF;
  --bg-card: #FFFFFF;
  --bg-card-strong: #F1F3F5;
  --text: #1E293B;
  --muted: #64748B;
  --primary: #1D4ED8;         /* آبی اصلی و پررنگ شرکتی */
  --primary-dark: #1E3A8A;    /* آبی تیره برای هاور */
  --secondary: #3B82F6;       /* تغییر سبز به آبی روشن برای هارمونی */
  --accent: #F59E0B;
  --border: #E2E8F0;
  --danger: #ef4444;
  --success: #10B981;

  /* سایه‌های مدرن و نرم */
  --shadow-sm: 0 2px 8px rgba(29, 78, 216, 0.08);
  --shadow-md: 0 4px 16px rgba(29, 78, 216, 0.15);
  --shadow-lg: 0 8px 24px rgba(29, 78, 216, 0.20);
  
  /* متغیرهای پایه */
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --container: 1200px;
  --transition: all 0.25s ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Vazirmatn FD NL", system-ui, -apple-system, sans-serif !important;
  background:
    radial-gradient(circle at top right, rgba(59, 130, 246, 0.06), transparent 25%),
    radial-gradient(circle at top left, rgba(29, 78, 216, 0.07), transparent 25%),
    var(--bg);
  color: var(--text);
  line-height: 1.8;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

.site-shell {
  overflow: hidden;
}

.container {
  width: min(100% - 32px, var(--container));
  margin-inline: auto;
}

.section {
  padding: 88px 0;
}

.alt-section {
  background: rgba(29, 78, 216, 0.03);
}

.section-head {
  max-width: 760px;
  margin: 0 auto 42px;
  text-align: center;
}

.section-head h2 {
  margin: 12px 0 14px;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  line-height: 1.35;
}

.section-head p {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
}

.section-badge,
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(29, 78, 216, 0.08);
  border: 1px solid rgba(29, 78, 216, 0.15);
  color: var(--primary);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 0.92rem;
  font-weight: 700;
}

.header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  background: rgba(248, 249, 250, 0.85);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 18px;
  min-height: 84px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}

.brand-badge {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #FFFFFF;
  font-weight: 900;
  font-size: 1.1rem;
  box-shadow: var(--shadow-md);
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-text strong {
  font-size: 1rem;
}

.brand-text small {
  color: var(--muted);
  font-size: 0.8rem;
}

.nav {
  display: flex;
  justify-content: center;
  gap: 22px;
}

.nav a {
  color: var(--muted);
  font-weight: 500;
  transition: var(--transition);
}

.nav a:hover {
  color: var(--primary);
}

.header-cta {
  display: flex;
  gap: 10px;
  align-items: center;
}

.menu-toggle {
  display: none;
  border: 0;
  background: transparent;
  color: var(--text);
  font-size: 1.35rem;
  cursor: pointer;
}

/* =========================================
   Button Styles (Updated)
   ========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 600;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s ease;
  padding: 12px 20px;
  text-decoration: none;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #FFFFFF;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  box-shadow: var(--shadow-lg);
  filter: brightness(1.05);
}

.btn-soft {
  background: var(--bg-card-strong);
  border-color: transparent;
  color: var(--text);
}

.btn-soft:hover {
  background: #e9ecef; /* A bit darker for hover */
}

.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.btn-outline:hover {
  background: var(--bg-card-strong);
  border-color: var(--border);
}

.btn-lg {
  padding: 15px 22px;
  border-radius: var(--radius-lg);
}

.btn-block {
  width: 100%;
}

.hero {
  padding: 84px 0 48px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  align-items: center;
}

.hero-content h1 {
  margin: 18px 0;
  font-size: clamp(2.1rem, 4vw, 4rem);
  line-height: 1.28;
}

.hero-content h1 span {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-text {
  color: var(--muted);
  max-width: 700px;
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin: 28px 0 24px;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.point {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
  font-size: 0.95rem;
  box-shadow: var(--shadow-sm);
}

.hero-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-lg);
}

.hero-card-head {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.hero-chip {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 8px 12px;
  background: rgba(59, 130, 246, 0.12);
  color: var(--primary);
  font-size: 0.9rem;
  font-weight: 700;
}

.hero-chip.ghost {
  background: var(--bg-card-strong);
  color: var(--text);
}

.hero-card h3 {
  margin: 0 0 10px;
  font-size: 1.45rem;
}

.hero-card p {
  margin: 0 0 18px;
  color: var(--muted);
}

.hero-checklist {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
}

.hero-checklist li {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  color: var(--text);
}

.trust-bar {
  padding: 16px 0 0;
}

.trust-items {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.trust-item {
  padding: 18px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-card);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.trust-item strong {
  display: block;
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.trust-item span {
  color: var(--muted);
  font-size: 0.95rem;
}

.cards-grid,
.why-grid,
.process-grid,
.pricing-grid,
.testimonial-grid {
  display: grid;
  gap: 20px;
}

.cards-grid {
  grid-template-columns: repeat(3, 1fr);
}

.service-card,
.why-card,
.process-item,
.pricing-card,
.testimonial-card,
.contact-form-card,
.contact-info {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.service-card:hover,
.why-card:hover,
.process-item:hover,
.pricing-card:hover,
.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.icon-box {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(29, 78, 216, 0.08), rgba(59, 130, 246, 0.12));
  color: var(--primary);
  font-size: 1.3rem;
  margin-bottom: 16px;
}

.service-card h3,
.why-card h3,
.process-item h3,
.pricing-card h3,
.contact-form-card h3 {
  margin: 0 0 10px;
}

.service-card p,
.why-card p,
.process-item p,
.pricing-card p,
.testimonial-card p,
.contact-info p {
  margin: 0;
  color: var(--muted);
}

.why-grid {
  grid-template-columns: repeat(3, 1fr);
}

.why-number {
  font-size: 2rem;
  font-weight: 900;
  color: rgba(29, 78, 216, 0.12);
  margin-bottom: 10px;
}

.process-grid {
  grid-template-columns: repeat(4, 1fr);
}

.process-item span {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #FFFFFF;
  font-weight: 900;
  margin-bottom: 14px;
}

.pricing-grid {
  grid-template-columns: repeat(3, 1fr);
}

.pricing-card {
  position: relative;
}

.pricing-card ul {
  list-style: none;
  margin: 18px 0 20px;
  padding: 0;
}

.pricing-card li {
  margin-bottom: 10px;
  color: var(--text);
  position: relative;
  padding-right: 18px;
}

.pricing-card li::before {
  content: "";
  position: absolute;
  right: 0;
  top: 12px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.pricing-top p {
  color: var(--muted);
}

.pricing-value {
  margin-top: 12px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary);
}

.pricing-card.featured {
  border-color: var(--primary);
  background: var(--bg-card);
  transform: scale(1.02);
  box-shadow: var(--shadow-lg);
}

.pricing-label {
  position: absolute;
  top: 18px;
  left: 18px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #FFFFFF;
  font-weight: 800;
  font-size: 0.8rem;
  padding: 7px 10px;
  border-radius: 999px;
}

/* ================= Hosting Pricing Styles ================= */
.hosting-features-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
}

.hf-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  box-shadow: var(--shadow-sm);
}

.hf-item i {
  color: var(--primary);
  font-size: 1.1rem;
}

.hosting-table-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
  margin-bottom: 32px;
  box-shadow: var(--shadow-md);
}

.hosting-table-head {
  margin-bottom: 24px;
}

.hosting-table-head h3 {
  margin: 0 0 8px;
  color: var(--primary);
  font-size: 1.4rem;
}

.hosting-table-head p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.table-responsive {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 750px;
}

.data-table th,
.data-table td {
  padding: 16px;
  text-align: right;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

.data-table th {
  background: var(--bg-card-strong);
  font-weight: 700;
  color: var(--text);
}

.data-table th:first-child {
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.data-table th:last-child {
  border-radius: var(--radius-md) 0 0 var(--radius-md);
}

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

.data-table tbody tr {
  transition: var(--transition);
}

.data-table tbody tr:hover {
  background: rgba(59, 130, 246, 0.04);
}

.data-table td strong {
  color: var(--primary);
  font-size: 1.05rem;
}

.data-table td.small-text {
  font-size: 0.85rem;
  color: var(--muted);
}
/* ======================================================== */

.testimonial-grid {
  grid-template-columns: repeat(3, 1fr);
}

.testimonial-card h4 {
  margin: 16px 0 4px;
}

.testimonial-card span {
  color: var(--muted);
  font-size: 0.92rem;
}

.contact-section {
  padding-bottom: 120px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 24px;
  align-items: start;
}

.contact-list {
  display: grid;
  gap: 14px;
  margin-top: 24px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border-radius: var(--radius-lg);
  background: var(--bg);
  border: 1px solid var(--border);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.full-width {
  grid-column: 1 / -1;
}

label {
  font-weight: 700;
  font-size: 0.95rem;
}

/* Base styles for all inputs */
input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  border-radius: var(--radius-md);
  padding: 14px 15px;
  font-family: 'Vazirmatn FD NL', system-ui, -apple-system, sans-serif !important;
  font-size: 0.96rem;
  outline: none;
  transition: var(--transition);
  -webkit-appearance: none;
  appearance: none;
}

input::placeholder,
textarea::placeholder {
  color: #9aa5b8;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(29, 78, 216, 0.08);
}

/* Specific styling for the custom dropdown arrow */
select {
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: left 15px center;
  background-size: 16px;
  padding-left: 40px;
  cursor: pointer;
}

select option {
  color: var(--text);
  background-color: var(--bg-card);
}

select:invalid {
  color: #9aa5b8;
}

.status-box {
  display: none;
  margin: 18px 0 14px;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  font-weight: 500;
}

.status-box.show {
  display: block;
}

.status-box.success {
  background: rgba(16, 185, 129, 0.1);
  color: #047857;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.status-box.error {
  background: rgba(239, 68, 68, 0.1);
  color: #b91c1c;
  border: 1px solid rgba(239, 68, 68, 0.25);
}

.submit-btn {
  margin-top: 6px;
}

.faq-section {
  padding-top: 0;
  padding-bottom: 96px;
}

.faq-list {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  gap: 14px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 0 18px;
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 0;
  font-weight: 800;
}

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

.faq-item p {
  color: var(--muted);
  margin: 0 0 18px;
}


/* =========================================
   Enterprise Footer Styles (New)
   ========================================= */
.footer {
  background-color: var(--bg-soft);
  border-top: 1px solid var(--border);
  padding-top: 60px;
  color: var(--text);
  font-size: 0.95rem;
}

.footer-top-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr 1.5fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  margin-bottom: 15px;
}

.footer-logo .logo-img {
  border-radius: 12px;
  box-shadow: var(--shadow-sm);
}

.footer-logo .logo-text {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary-dark);
}

.footer-desc {
  color: var(--muted);
  line-height: 1.8;
  margin-bottom: 20px;
}

.social-links {
  display: flex;
  gap: 12px;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--bg);
  color: var(--muted);
  border-radius: 8px;
  transition: all 0.3s ease;
  border: 1px solid var(--border);
}

.social-links a:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-3px);
}

.widget-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--primary-dark);
  position: relative;
  padding-bottom: 10px;
}

.widget-title::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 40px;
  height: 3px;
  background: var(--secondary);
  border-radius: 2px;
}

.footer-nav, .footer-contact {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-nav li, .footer-contact li {
  margin-bottom: 12px;
  color: var(--muted);
  line-height: 1.6;
}

.footer-nav a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-nav a:hover {
  color: var(--primary);
}

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

.trust-badges {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.enamad-box, .samandehi-box {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px;
  transition: box-shadow 0.3s ease;
  display: inline-block;
}

.enamad-box:hover, .samandehi-box:hover {
  box-shadow: var(--shadow-md);
}

.footer-bottom {
  background-color: var(--bg);
  border-top: 1px solid var(--border);
  padding: 20px 0;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

.copyright {
  color: var(--muted);
  margin: 0;
}

.footer-legal a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-legal a:hover {
  color: var(--primary);
}

.separator {
  color: var(--border);
  margin: 0 10px;
}


/* =========================================
   Mobile & Responsive Styles
   ========================================= */
.mobile-sticky-cta {
  position: fixed;
  left: 12px;
  right: 12px;
  bottom: 12px;
  display: none;
  gap: 10px;
  z-index: 60;
}

.mobile-sticky-cta a {
  flex: 1;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  border-radius: var(--radius-md);
  padding: 14px;
  font-weight: 800;
  box-shadow: var(--shadow-lg);
}

.mobile-call {
  background: #FFFFFF;
  border: 1px solid var(--border);
  color: var(--text);
}

.mobile-form {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #FFFFFF;
}

@media (max-width: 1100px) {
  .hero-grid,
  .contact-grid,
  .cards-grid,
  .why-grid,
  .pricing-grid,
  .testimonial-grid,
  .process-grid,
  .trust-items {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-top-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .header-inner {
    grid-template-columns: auto auto;
  }

  .nav {
    grid-column: 1 / -1;
    justify-content: flex-start;
    flex-wrap: wrap;
  }
}

@media (max-width: 860px) {
  .header-inner {
    grid-template-columns: auto auto;
    min-height: 72px;
  }

  .menu-toggle {
    display: inline-flex;
    justify-self: end;
  }

  .header-cta {
    display: none;
  }

  .nav {
    display: none;
    grid-column: 1 / -1;
    flex-direction: column;
    gap: 14px;
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid var(--border);
    padding: 16px;
    border-radius: var(--radius-lg);
    margin-bottom: 10px;
    box-shadow: var(--shadow-md);
  }

  .nav.show {
    display: flex;
  }

  .hero-grid,
  .contact-grid,
  .cards-grid,
  .why-grid,
  .pricing-grid,
  .testimonial-grid,
  .process-grid,
  .trust-items,
  .footer-top-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-top-grid {
    gap: 30px;
  }
  
  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
  }

  .section {
    padding: 72px 0;
  }

  .hero {
    padding-top: 42px;
  }

  .hero-content h1 {
    font-size: 2rem;
  }

  .mobile-sticky-cta {
    display: flex;
  }

  .contact-section {
    padding-bottom: 130px;
  }
}
/* =========================================
   1. Sticky Header Styles
   ========================================= */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--bg-soft);
  transition: var(--transition);
  /* استایل پایه هدر قبل از اسکرول */
  padding: 20px 0; 
  box-shadow: none;
}

.site-header.sticky {
  padding: 10px 0; /* کاهش ارتفاع هدر هنگام اسکرول */
  box-shadow: var(--shadow);
  background-color: rgba(255, 255, 255, 0.95); /* کمی شفافیت برای زیبایی */
  backdrop-filter: blur(10px); /* افکت بلور برای پس‌زمینه هدر */
}

/* فاصله دادن به محتوای اصلی تا زیر هدر ثابت نرود */
body {
  padding-top: 80px; /* این مقدار باید حدوداً برابر ارتفاع هدر شما باشد */
}


/* =========================================
   2. Tabbed Interface Styles
   ========================================= */
.tabs-container {
  max-width: var(--container);
  margin: 0 auto 40px auto;
  text-align: center;
}

.tabs-nav {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  background-color: var(--bg-card-strong);
  padding: 6px;
  border-radius: var(--radius-lg);
  margin-bottom: 30px;
}

.tab-btn {
  background: transparent;
  border: none;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn:hover {
  color: var(--text);
}

.tab-btn.active {
  background-color: var(--bg-card);
  color: var(--primary);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

/* مخفی کردن تمام محتواهای تب به صورت پیش‌فرض */
.tab-content {
  display: none;
  animation: fadeIn 0.4s ease-in-out;
}

/* نمایش محتوای تبی که فعال است */
.tab-content.active {
  display: block;
}

/* انیمیشن محو شدن برای نمایش نرم تب‌ها */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* تنظیمات ریسپانسیو برای دکمه‌های تب در موبایل */
@media (max-width: 560px) {
  .tabs-nav {
    flex-direction: column;
    width: 100%;
  }
  
  .tab-btn {
    width: 100%;
    text-align: center;
  }
}
/* استایل تب‌های داخلی شبیه تب‌های اصلی */
.sub-tabs-header {
  display: inline-flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 30px;
  flex-wrap: wrap;
  background-color: var(--bg-card-strong); /* اضافه شدن بک‌گراند نوار تب */
  padding: 6px;
  border-radius: var(--radius-lg);
}

.sub-tab-btn {
  background: transparent;
  border: none;
  padding: 10px 20px;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  color: var(--muted); /* اصلاح نام متغیر رنگ برای خوانایی */
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: all 0.3s ease;
}

.sub-tab-btn:hover {
  color: var(--text);
}

.sub-tab-btn.active {
  background-color: var(--bg-card); /* پس‌زمینه تب فعال */
  color: var(--primary); /* رنگ آبی متن تب فعال */
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.sub-tab-content {
  display: none;
  animation: fadeIn 0.4s ease-in-out;
}

.sub-tab-content.active {
  display: block;
}