:root {
  --brand-blue: #3aa6e5;
  --brand-blue-light: #63c0f2;
  --brand-mint: #8ee0cf;
  --brand-cream: #f9fbff;
  --text-dark: #12313f;
  --muted: #5f7383;
  --card-shadow: 0 12px 32px rgba(18, 49, 63, 0.08);
}

body {
  font-family: "Montserrat", "Segoe UI", system-ui, sans-serif;
  background: var(--brand-cream);
  color: var(--text-dark);
  padding-top: 84px; /* sticky header boşluğu */
}

.navbar {
  background: linear-gradient(120deg, var(--brand-blue) 0%, var(--brand-blue-light) 60%, #7cd3ff 100%);
}
.navbar .nav-link,
.navbar .navbar-brand {
  color: #fff !important;
  font-weight: 600;
}
.navbar .nav-link:hover,
.navbar .navbar-brand:hover {
  opacity: 0.9;
}
.navbar-toggler {
  border-color: rgba(255,255,255,0.5);
}
.navbar-toggler-icon {
  background-image: none;
}
.navbar-toggler-icon::before {
  content: "☰";
  color: #fff;
  font-size: 1.2rem;
}

/* Arama barı (alt satır) */
.nav-search-bar {
  background: #fff;
  border-bottom: 1px solid rgba(58,166,229,0.18);
}
.nav-search form {
  max-width: 640px;
}
.nav-search input {
  border: 1px solid rgba(58,166,229,0.25);
  background: #fff;
  color: var(--text-dark);
}
.nav-search input:focus {
  box-shadow: 0 0 0 2px rgba(58,166,229,0.2);
}
.nav-search .btn {
  background: var(--brand-blue);
  color: #fff;
  border: none;
  font-weight: 700;
  padding: 0 18px;
}

.hero {
  background: radial-gradient(circle at 20% 20%, rgba(99,192,242,0.18), transparent 35%),
              radial-gradient(circle at 80% 10%, rgba(142,224,207,0.22), transparent 35%),
              #e9f6ff;
  border-radius: 18px;
  padding: 36px;
  box-shadow: var(--card-shadow);
}
.hero h1 { color: var(--brand-blue); font-weight: 800; }
.hero p { color: var(--muted); font-size: 1.05rem; }

.btn-brand {
  background: var(--brand-blue);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 12px 18px;
  font-weight: 700;
  box-shadow: 0 10px 28px rgba(58,166,229,0.25);
}
.btn-brand:hover { background: #2f93cc; color: #fff; }
.btn-ghost {
  background: #fff;
  color: var(--brand-blue);
  border: 1px solid rgba(58,166,229,0.2);
  border-radius: 10px;
  padding: 12px 18px;
  font-weight: 700;
}

.card-soft {
  background: #fff;
  border: 1px solid rgba(58,166,229,0.10);
  border-radius: 16px;
  box-shadow: var(--card-shadow);
}
.card-soft h3 { color: var(--brand-blue); }
.badge-soft {
  background: rgba(58,166,229,0.12);
  color: #0f78ad;
  border-radius: 999px;
  padding: 6px 12px;
  font-weight: 700;
  font-size: 0.9rem;
}

.section-title {
  color: var(--brand-blue);
  font-weight: 800;
  text-align: center;
  margin: 8px 0 24px;
}
.section-sub {
  text-align: center;
  color: var(--muted);
  max-width: 720px;
  margin: 0 auto 24px;
}

.feature-icon {
  width: 54px; height: 54px; border-radius: 14px;
  display: grid; place-items: center;
  background: rgba(58,166,229,0.12);
  color: var(--brand-blue);
  font-size: 1.4rem;
}

.stat-box {
  text-align: center; padding: 18px; border-radius: 14px;
  background: linear-gradient(145deg, rgba(58,166,229,0.10), rgba(142,224,207,0.12));
  color: var(--text-dark);
}
.stat-box .value { font-size: 1.8rem; font-weight: 800; color: var(--brand-blue); }
.stat-box .label { color: var(--muted); }

footer { background: #fff; color: var(--muted); }