/* ============================================
   SosyalTR
   ============================================ */

:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #eff6ff;
  --accent: #7c3aed;
  --accent-light: #f5f3ff;
  --dark: #0f172a;
  --text: #334155;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --white: #ffffff;
  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow: 0 4px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 60px rgba(15, 23, 42, 0.12);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', system-ui, -apple-system, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--dark);
  font-weight: 700;
  line-height: 1.25;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color var(--transition);
}

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

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

/* ---- Utilities ---- */
.section-padding { padding: 100px 0; }
.section-padding-sm { padding: 70px 0; }

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 16px;
}

.section-label::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 600px;
}

.btn-primary-custom {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: var(--primary);
  color: var(--white) !important;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.btn-primary-custom:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.4);
  color: var(--white) !important;
}

.btn-outline-custom {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: transparent;
  color: var(--dark) !important;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid var(--border);
  border-radius: 50px;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-outline-custom:hover {
  border-color: var(--primary);
  color: var(--primary) !important;
  transform: translateY(-2px);
}

/* ---- Header ---- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1050;
  padding: 18px 0;
  transition: all var(--transition);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-sm);
  padding: 12px 0;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--dark) !important;
  letter-spacing: -0.02em;
}

.navbar-brand span { color: var(--primary); }

.nav-link {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text) !important;
  padding: 8px 16px !important;
  position: relative;
  transition: color var(--transition);
}

.nav-link:hover,
.nav-link.active { color: var(--primary) !important; }

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.navbar-toggler {
  border: none;
  padding: 4px 8px;
}

.navbar-toggler:focus { box-shadow: none; }

.btn-nav-cta {
  padding: 10px 22px !important;
  background: var(--primary);
  color: var(--white) !important;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all var(--transition);
}

.btn-nav-cta:hover {
  background: var(--primary-dark);
  color: var(--white) !important;
  transform: translateY(-1px);
}

/* ---- Hero ---- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 140px 0 100px;
  position: relative;
  overflow: hidden;
  background: var(--white);
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
}

.hero-blob-1 {
  width: 500px;
  height: 500px;
  background: var(--primary-light);
  top: -100px;
  right: -100px;
}

.hero-blob-2 {
  width: 400px;
  height: 400px;
  background: var(--accent-light);
  bottom: -50px;
  left: -100px;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(37, 99, 235, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 235, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--primary-light);
  border: 1px solid rgba(37, 99, 235, 0.15);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 24px;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.2); }
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

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

.hero-lead {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 540px;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
}

.hero-stat strong {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--dark);
  line-height: 1;
}

.hero-stat span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.hero-visual {
  position: relative;
}

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

.hero-card-float {
  position: absolute;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 12px;
  animation: float 4s ease-in-out infinite;
}

.hero-card-float-1 { top: -20px; right: -20px; animation-delay: 0s; }
.hero-card-float-2 { bottom: 40px; left: -30px; animation-delay: 1s; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.hero-icon-box {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.hero-mockup {
  background: linear-gradient(135deg, var(--bg-soft), var(--primary-light));
  border-radius: var(--radius);
  padding: 32px;
  min-height: 380px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mockup-bar {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
}

.mockup-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
}

.mockup-dot:nth-child(1) { background: #ef4444; }
.mockup-dot:nth-child(2) { background: #f59e0b; }
.mockup-dot:nth-child(3) { background: #22c55e; }

.mockup-line {
  height: 12px;
  background: rgba(37, 99, 235, 0.1);
  border-radius: 6px;
}

.mockup-line.w-80 { width: 80%; }
.mockup-line.w-60 { width: 60%; }
.mockup-line.w-40 { width: 40%; }

.mockup-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: auto;
}

.mockup-card {
  background: var(--white);
  border-radius: var(--radius-sm);
  padding: 16px;
  border: 1px solid var(--border);
}

.mockup-card i {
  font-size: 1.5rem;
  color: var(--primary);
  margin-bottom: 8px;
}

/* ---- Services ---- */
.services-section { background: var(--bg-soft); }

.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  height: 100%;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: transparent;
}

.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 20px;
  transition: transform var(--transition);
}

.service-card:hover .service-icon { transform: scale(1.1); }

.service-icon.blue { background: var(--primary-light); color: var(--primary); }
.service-icon.purple { background: var(--accent-light); color: var(--accent); }
.service-icon.green { background: #ecfdf5; color: #059669; }
.service-icon.orange { background: #fff7ed; color: #ea580c; }
.service-icon.pink { background: #fdf2f8; color: #db2777; }
.service-icon.cyan { background: #ecfeff; color: #0891b2; }

.service-card h3 {
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.service-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 20px;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--primary);
}

.service-link i { transition: transform var(--transition); }
.service-card:hover .service-link i { transform: translateX(4px); }

/* ---- Features / Why Us ---- */
.feature-item {
  display: flex;
  gap: 20px;
  padding: 24px;
  border-radius: var(--radius);
  transition: background var(--transition);
}

.feature-item:hover { background: var(--bg-soft); }

.feature-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.feature-item h4 {
  font-size: 1.05rem;
  margin-bottom: 6px;
}

.feature-item p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
}

/* ---- Stats Bar ---- */
.stats-bar {
  background: var(--dark);
  padding: 60px 0;
}

.stat-item { text-align: center; }

.stat-item .number {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: var(--white);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-item .label {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.6);
}

/* ---- Process ---- */
.process-step {
  text-align: center;
  position: relative;
  padding: 0 20px;
}

.process-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  font-size: 1.25rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  position: relative;
  z-index: 1;
}

.process-step h4 {
  font-size: 1.05rem;
  margin-bottom: 10px;
}

.process-step p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
}

/* ---- CTA ---- */
.cta-section {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius);
  padding: 60px;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  top: -100px;
  right: -50px;
}

.cta-section h2 {
  color: var(--white);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  margin-bottom: 16px;
}

.cta-section p {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.05rem;
  margin-bottom: 0;
}

.btn-white {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: var(--white);
  color: var(--primary) !important;
  font-weight: 700;
  border-radius: 50px;
  transition: all var(--transition);
  border: none;
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  color: var(--primary-dark) !important;
}

/* ---- Testimonials ---- */
.testimonial-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  height: 100%;
}

.testimonial-stars {
  color: #f59e0b;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.testimonial-card blockquote {
  font-size: 1rem;
  color: var(--text);
  margin-bottom: 24px;
  font-style: italic;
  line-height: 1.8;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 1rem;
}

.testimonial-author strong {
  display: block;
  font-size: 0.95rem;
  color: var(--dark);
}

.testimonial-author span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ---- Page Header (inner pages) ---- */
.page-header {
  padding: 160px 0 80px;
  background: var(--bg-soft);
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(37, 99, 235, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 235, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

.page-header h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  margin-bottom: 16px;
  position: relative;
}

.breadcrumb-custom {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-muted);
  position: relative;
}

.breadcrumb-custom a { color: var(--text-muted); }
.breadcrumb-custom a:hover { color: var(--primary); }

/* ---- About ---- */
.about-img-wrap {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
}

.about-img-placeholder {
  background: linear-gradient(135deg, var(--primary-light), var(--accent-light));
  min-height: 420px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-badge {
  position: absolute;
  bottom: 30px;
  right: -20px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 28px;
  box-shadow: var(--shadow);
  text-align: center;
}

.about-badge strong {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.about-badge span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.value-card {
  text-align: center;
  padding: 32px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
  height: 100%;
  transition: all var(--transition);
}

.value-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.value-card .icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto 20px;
}

.team-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--white);
  transition: all var(--transition);
}

.team-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.team-avatar {
  height: 260px;
  background: linear-gradient(135deg, var(--primary-light), var(--accent-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  font-weight: 800;
  color: var(--primary);
}

.team-info {
  padding: 24px;
  text-align: center;
}

.team-info h4 { font-size: 1.1rem; margin-bottom: 4px; }
.team-info span { font-size: 0.85rem; color: var(--primary); font-weight: 500; }

/* ---- Service Detail ---- */
.service-detail-hero {
  background: var(--bg-soft);
  border-radius: var(--radius);
  padding: 48px;
  margin-bottom: 48px;
}

.service-detail-icon {
  width: 72px;
  height: 72px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: 24px;
}

.detail-feature-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.detail-feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}

.detail-feature-list li:last-child { border-bottom: none; }

.detail-feature-list li i {
  color: var(--primary);
  margin-top: 3px;
  font-size: 1.1rem;
}

.sidebar-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  position: sticky;
  top: 100px;
}

.sidebar-card h4 {
  font-size: 1.1rem;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.sidebar-services {
  list-style: none;
  padding: 0;
  margin: 0;
}

.sidebar-services li a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all var(--transition);
  margin-bottom: 4px;
}

.sidebar-services li a:hover,
.sidebar-services li a.active {
  background: var(--primary-light);
  color: var(--primary);
}

/* ---- Contact ---- */
.contact-info-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  height: 100%;
  transition: all var(--transition);
}

.contact-info-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.contact-info-card .icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 16px;
}

.contact-info-card h4 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.contact-info-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0;
}

.contact-form-wrap {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
}

.form-label {
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--dark);
  margin-bottom: 8px;
}

.form-control-custom {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: var(--font);
  color: var(--dark);
  background: var(--bg-soft);
  transition: all var(--transition);
}

.form-control-custom:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

textarea.form-control-custom {
  min-height: 140px;
  resize: vertical;
}

.map-placeholder {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

/* ---- Footer ---- */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.7);
  padding-top: 80px;
}

.footer-brand {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 16px;
}

.footer-brand span { color: var(--primary); }

.footer-desc {
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 24px;
}

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

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white) !important;
  font-size: 1rem;
  transition: all var(--transition);
}

.footer-social a:hover {
  background: var(--primary);
  transform: translateY(-2px);
}

.footer-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--white);
  margin-bottom: 20px;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li { margin-bottom: 12px; }

.footer-links a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--white); }

.footer-contact-item {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.footer-contact-item i {
  color: var(--primary);
  margin-top: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px 0;
  margin-top: 60px;
}

.footer-bottom p {
  margin: 0;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

/* ---- Animations ---- */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---- Back to top ---- */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition);
  z-index: 1040;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--primary-dark);
  transform: translateY(-3px);
}

/* ---- Responsive ---- */
@media (max-width: 991.98px) {
  .section-padding { padding: 70px 0; }
  .hero { padding: 120px 0 70px; min-height: auto; }
  .hero-visual { margin-top: 48px; }
  .hero-card-float { display: none; }
  .cta-section { padding: 40px 28px; }
  .about-badge { right: 10px; bottom: 10px; }
  .service-detail-hero { padding: 28px; }
  .contact-form-wrap { padding: 28px; }
}

@media (max-width: 767.98px) {
  .hero-stats { gap: 24px; }
  .hero-stat strong { font-size: 1.5rem; }
}