/* ==========================================================================
   724 Yedekleme - Kurumsal Stil Dosyası
   Onsa Bilgisayar | Tasarım: Kurumsal & Güven Odaklı
   ========================================================================== */

:root {
  /* Renk Paleti - Mavi & Beyaz Kurumsal */
  --primary: #0b3d91;
  --primary-dark: #062a66;
  --primary-light: #1e5bbf;
  --accent: #00b4d8;
  --accent-soft: #e8f4fb;
  --bg: #ffffff;
  --bg-soft: #f6f9fc;
  --bg-section: #f0f5fa;
  --text: #0f172a;
  --text-muted: #475569;
  --text-soft: #64748b;
  --border: #e2e8f0;
  --border-soft: #eef2f7;
  --success: #10b981;
  --warning: #f59e0b;
  --shadow-sm: 0 1px 2px rgba(11, 61, 145, 0.06);
  --shadow-md: 0 6px 20px rgba(11, 61, 145, 0.08);
  --shadow-lg: 0 20px 40px rgba(11, 61, 145, 0.12);

  /* Tipografi */
  --font-display: 'Plus Jakarta Sans', system-ui, sans-serif;
  --font-body: 'Manrope', system-ui, sans-serif;

  /* Layout */
  --max-width: 1200px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color .2s ease;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--text);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
h3 { font-size: 1.35rem; }
h4 { font-size: 1.1rem; }

p { color: var(--text-muted); }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border-soft);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--text);
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}

.logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
  font-size: 0.85rem;
  box-shadow: 0 6px 18px rgba(11, 61, 145, 0.25);
}

.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-sub {
  font-family: var(--font-body);
  font-size: 0.72rem;
  color: var(--text-soft);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav a {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  padding: 6px 0;
}

.nav a::after {
  content: '';
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 2px;
  background: var(--primary);
  transition: width .25s ease;
}

.nav a:hover, .nav a.active {
  color: var(--primary);
}
.nav a:hover::after, .nav a.active::after { width: 100%; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-family: var(--font-body);
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: all .25s ease;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  box-shadow: 0 8px 22px rgba(11, 61, 145, 0.28);
}
.btn-primary:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(11, 61, 145, 0.36);
}

.btn-ghost {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover {
  background: var(--accent-soft);
  border-color: var(--primary-light);
}

/* Mobile menu */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  width: 40px; height: 40px;
  cursor: pointer;
}
.menu-toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text);
  margin: 5px auto;
  transition: all .25s ease;
}

/* ==========================================================================
   HERO & SECTIONS
   ========================================================================== */
.hero {
  position: relative;
  padding: 80px 0 100px;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 80% 0%, rgba(0, 180, 216, 0.10), transparent 50%),
    radial-gradient(ellipse at 0% 100%, rgba(11, 61, 145, 0.08), transparent 50%),
    var(--bg);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(11, 61, 145, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 61, 145, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px 6px 8px;
  background: var(--accent-soft);
  border: 1px solid rgba(0, 180, 216, 0.25);
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 24px;
}
.hero-badge .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.18);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.18); }
  50% { box-shadow: 0 0 0 8px rgba(16, 185, 129, 0.05); }
}

.hero h1 {
  margin-bottom: 22px;
}
.hero h1 .accent {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p.lead {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 36px;
}

.hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--border-soft);
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.trust-item .icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: var(--accent-soft);
  display: grid;
  place-items: center;
  color: var(--primary);
}

/* Hero Visual - Backup Dashboard Mockup */
.hero-visual {
  position: relative;
  perspective: 1200px;
}

.dashboard-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-lg);
  transform: rotateY(-6deg) rotateX(4deg);
  transition: transform .6s ease;
}
.dashboard-card:hover { transform: rotateY(-2deg) rotateX(2deg); }

.dash-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-soft);
}
.dash-title {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--text);
}
.dash-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--success);
  background: rgba(16, 185, 129, 0.08);
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 600;
}
.dash-status .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--success);
}

.dash-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--border-soft);
}
.dash-row:last-child { border-bottom: none; }
.dash-row-left {
  display: flex; align-items: center; gap: 12px;
}
.dash-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: var(--accent-soft);
  display: grid; place-items: center;
  color: var(--primary);
}
.dash-name { font-size: 0.92rem; font-weight: 600; color: var(--text); }
.dash-meta { font-size: 0.78rem; color: var(--text-soft); }
.dash-progress {
  width: 80px; height: 6px;
  background: var(--border-soft);
  border-radius: 999px;
  overflow: hidden;
}
.dash-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 999px;
  animation: fill 2.5s ease-out;
}
@keyframes fill {
  from { width: 0; }
}

.floating-card {
  position: absolute;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  animation: float 4s ease-in-out infinite;
}
.floating-card .icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: grid; place-items: center;
  color: #fff;
}
.floating-1 { top: -20px; right: -20px; animation-delay: 0s; }
.floating-2 { bottom: -10px; left: -25px; animation-delay: 1.5s; }

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

/* ==========================================================================
   SECTIONS
   ========================================================================== */
section { padding: 90px 0; }

.section-head {
  max-width: 720px;
  margin: 0 auto 56px;
  text-align: center;
}
.section-eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 14px;
}
.section-head h2 { margin-bottom: 16px; }
.section-head p { font-size: 1.05rem; }

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.feature-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 26px;
  transition: all .3s ease;
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s ease;
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-light);
  box-shadow: var(--shadow-md);
}
.feature-card:hover::before { transform: scaleX(1); }

.feature-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent-soft), #fff);
  border: 1px solid var(--border-soft);
  display: grid; place-items: center;
  color: var(--primary);
  margin-bottom: 18px;
}

.feature-card h3 { margin-bottom: 10px; }
.feature-card p { font-size: 0.95rem; }

/* Bg variants */
.bg-soft { background: var(--bg-soft); }
.bg-section { background: var(--bg-section); }

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
  text-align: center;
}
.stat {
  padding: 28px 16px;
  border-radius: var(--radius-md);
  background: #fff;
  border: 1px solid var(--border-soft);
}
.stat-num {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1.1;
  margin-bottom: 6px;
}
.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* CTA Section */
.cta-section {
  background:
    radial-gradient(ellipse at 0% 0%, rgba(0, 180, 216, 0.18), transparent 50%),
    radial-gradient(ellipse at 100% 100%, rgba(255, 255, 255, 0.08), transparent 50%),
    linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 60px 48px;
  position: relative;
  overflow: hidden;
}
.cta-section::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse at top right, #000 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at top right, #000 20%, transparent 70%);
  pointer-events: none;
}
.cta-section .inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-section h2 { color: #fff; margin-bottom: 10px; }
.cta-section p { color: rgba(255, 255, 255, 0.85); font-size: 1.05rem; max-width: 560px; }
.cta-section .btn {
  background: #fff;
  color: var(--primary);
}
.cta-section .btn:hover {
  background: var(--accent-soft);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0,0,0,0.2);
}

/* ==========================================================================
   MODULE / DETAIL CARDS (Bulut Modülleri)
   ========================================================================== */
.module-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all .3s ease;
  display: flex;
  flex-direction: column;
  gap: 18px;
  position: relative;
  overflow: hidden;
}
.module-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}
.module-card .module-icon {
  width: 64px; height: 64px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: grid; place-items: center;
  color: #fff;
  box-shadow: 0 10px 24px rgba(11, 61, 145, 0.25);
}
.module-card h3 { font-size: 1.25rem; }
.module-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-top: 12px;
  border-top: 1px solid var(--border-soft);
}
.module-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-muted);
}
.module-features li svg { color: var(--success); flex-shrink: 0; }

/* ==========================================================================
   BENEFITS LIST (Neden Bulut)
   ========================================================================== */
.benefit-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  margin-bottom: 80px;
}
.benefit-row:last-child { margin-bottom: 0; }
.benefit-row.reverse { direction: rtl; }
.benefit-row.reverse > * { direction: ltr; }

.benefit-text h3 {
  font-size: 1.8rem;
  margin-bottom: 16px;
}
.benefit-text p { font-size: 1.02rem; margin-bottom: 16px; }
.benefit-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.benefit-list li {
  display: flex;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text);
}
.benefit-list li svg {
  color: var(--success);
  flex-shrink: 0;
  margin-top: 4px;
}

.benefit-visual {
  background: linear-gradient(135deg, var(--accent-soft) 0%, #fff 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  position: relative;
  overflow: hidden;
}
.benefit-visual svg {
  width: 100%; height: 100%;
  max-width: 320px;
}

/* ==========================================================================
   CONTACT
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.info-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.info-item .icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--primary);
  display: grid; place-items: center;
  flex-shrink: 0;
}
.info-item h4 { margin-bottom: 4px; font-size: 1rem; }
.info-item a, .info-item p {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.contact-form {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text);
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text);
  background: #fff;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(11, 61, 145, 0.08);
}
.form-group textarea { resize: vertical; min-height: 110px; }

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  background: #0a1f3d;
  color: #cbd5e1;
  padding: 60px 0 30px;
  margin-top: 80px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-brand .logo { color: #fff; }
.footer-brand .logo-sub { color: #94a3b8; }
.footer-brand p {
  margin-top: 16px;
  font-size: 0.9rem;
  color: #94a3b8;
  max-width: 320px;
}
.footer-col h4 {
  color: #fff;
  font-size: 0.95rem;
  margin-bottom: 18px;
  font-family: var(--font-display);
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col a {
  color: #cbd5e1;
  font-size: 0.9rem;
}
.footer-col a:hover { color: #fff; }
.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
  color: #94a3b8;
}

/* ==========================================================================
   PAGE HEADER (sub-pages)
   ========================================================================== */
.page-header {
  padding: 70px 0 50px;
  background:
    radial-gradient(ellipse at 80% 0%, rgba(0, 180, 216, 0.10), transparent 50%),
    var(--bg-soft);
  text-align: center;
  border-bottom: 1px solid var(--border-soft);
}
.page-header .section-eyebrow { color: var(--accent); }
.page-header h1 { margin-bottom: 14px; }
.page-header p { max-width: 640px; margin: 0 auto; font-size: 1.08rem; }

/* ==========================================================================
   ANIMATIONS
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  animation: reveal .7s ease forwards;
}
.reveal.delay-1 { animation-delay: .15s; }
.reveal.delay-2 { animation-delay: .30s; }
.reveal.delay-3 { animation-delay: .45s; }

@keyframes reveal {
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   WHATSAPP FLOATING BUTTON
   ========================================================================== */
#whatsapp-float {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 60px;
  height: 60px;
  background: #25D366;
  color: #fff;
  border-radius: 50%;
  display: grid;
  place-items: center;
  box-shadow: 0 10px 28px rgba(37, 211, 102, 0.45),
              0 4px 10px rgba(0, 0, 0, 0.12);
  z-index: 999;
  transition: transform .25s ease, box-shadow .25s ease;
  animation: wa-pulse 2.5s infinite;
}
#whatsapp-float svg {
  width: 32px;
  height: 32px;
  display: block;
}
#whatsapp-float:hover {
  transform: scale(1.08);
  color: #fff;
  box-shadow: 0 14px 34px rgba(37, 211, 102, 0.55),
              0 6px 14px rgba(0, 0, 0, 0.16);
  animation-play-state: paused;
}
#whatsapp-float::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 2px solid rgba(37, 211, 102, 0.45);
  animation: wa-ring 2.5s infinite;
  pointer-events: none;
}
@keyframes wa-pulse {
  0%, 100% { box-shadow: 0 10px 28px rgba(37, 211, 102, 0.45), 0 4px 10px rgba(0, 0, 0, 0.12); }
  50% { box-shadow: 0 10px 28px rgba(37, 211, 102, 0.65), 0 4px 10px rgba(0, 0, 0, 0.16); }
}
@keyframes wa-ring {
  0% { transform: scale(1); opacity: 0.7; }
  100% { transform: scale(1.45); opacity: 0; }
}
@media (max-width: 520px) {
  #whatsapp-float {
    right: 16px;
    bottom: 16px;
    width: 54px;
    height: 54px;
  }
  #whatsapp-float svg { width: 28px; height: 28px; }
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 960px) {
  .hero-grid,
  .benefit-row,
  .benefit-row.reverse,
  .contact-grid,
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .benefit-row.reverse { direction: ltr; }
  .floating-card { display: none; }
  .dashboard-card { transform: none; }

  .nav, .header-cta { display: none; }
  .menu-toggle { display: block; }

  .nav.open {
    display: flex;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    padding: 20px;
    gap: 14px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
  }

  section { padding: 60px 0; }
  .cta-section { padding: 40px 28px; }
  .cta-section .inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 520px) {
  h1 { font-size: 2.1rem; }
  h2 { font-size: 1.7rem; }
  .feature-card, .module-card, .contact-form { padding: 24px; }
}