/* base.css — reset, CSS variables, typography, ortak buton */
:root {
  --sky: #007AFF;
  --sky-dark: #0056b3;
  --sky-pale: #cfe4ff;
  --ink: #1a1a1a;
  --ink-soft: #666;
  --bg: #f5f9ff;
  --white: #fff;
  --radius: 10px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.10);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.5;
}
a { color: var(--sky); text-decoration: none; }
a:hover { text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4 { margin: 0 0 12px; line-height: 1.25; }

.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  border: none;
  font-family: inherit;
  font-size: 15px;
  transition: transform 0.15s ease, opacity 0.15s ease;
}
.btn--primary { background: var(--sky); color: var(--white); }
.btn--primary:hover { opacity: 0.9; }
.btn--ghost { background: transparent; color: var(--sky); border: 1.5px solid var(--sky); }
.btn--ghost:hover { background: var(--sky); color: var(--white); }
.btn--lg { padding: 16px 32px; font-size: 17px; }

/* about-hero — ortak hero (form ve hakkimizda sayfalarinda kullanilir) */
.about-hero {
  background:
    linear-gradient(135deg, rgba(0, 62, 128, 0.96), rgba(0, 122, 255, 0.88)),
    radial-gradient(circle at 85% 15%, rgba(255, 224, 130, 0.45), transparent 32%),
    radial-gradient(circle at 10% 90%, rgba(91, 155, 213, 0.5), transparent 38%);
  border-radius: 20px;
  padding: 72px 32px;
  position: relative;
  overflow: hidden;
  text-align: center;
  color: var(--white);
  box-shadow: 0 18px 42px rgba(0, 62, 128, 0.2);
}
.card-header.about-hero { margin-bottom: 24px; }
.about-hero__inner { position: relative; z-index: 1; max-width: 800px; margin: 0 auto; }
.card-header.about-hero .about-hero__inner { position: relative; z-index: 2; max-width: 800px; margin: 0 auto; text-align: center; }
.about-hero__eyebrow {
  display: inline-block;
  padding: 7px 14px;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: #ffffff;
  backdrop-filter: blur(8px);
}
.about-hero__title { margin: 18px 0 14px; color: var(--white); font-size: 42px; line-height: 1.15; }
.about-hero__sub { max-width: 650px; margin: 0 auto; color: rgba(255, 255, 255, 0.9); line-height: 1.65; }
.about-hero__accent { color: #ffe082; }
.about-hero__actions { display: flex; gap: 12px; justify-content: center; margin-top: 26px; flex-wrap: wrap; }
.about-hero__decor { position: absolute; inset: 0; pointer-events: none; overflow: hidden; z-index: 0; }
.about-blob { position: absolute; border-radius: 50%; filter: blur(12px); opacity: 0.28; }
.about-blob--1 { width: 260px; height: 260px; background: #ffe082; top: -100px; right: -70px; }
.about-blob--2 { width: 360px; height: 360px; background: #5b9bd5; bottom: -160px; left: -110px; }
.card-header.about-hero .about-blob { position: absolute; border-radius: 50%; filter: blur(60px); opacity: .4; pointer-events: none; z-index: 1; }

@media (max-width: 600px) {
  .about-hero__title { font-size: 24px; }
}

/* layout — header, footer, container, breadcrumb (layout.css'ten) */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: var(--white);
  box-shadow: var(--shadow-sm);
}
.page-header .logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  color: var(--ink);
}
.page-header .logo-img { height: 32px; }
.main-nav { display: flex; gap: 16px; }
.main-nav a {
  color: var(--ink);
  padding: 6px 10px;
  border-radius: 6px;
  transition: background 0.15s;
}
.main-nav a:hover { background: var(--sky-pale); text-decoration: none; }
.main-nav .nav-taksit,
.main-nav .nav-plaka {
  background: linear-gradient(135deg, #007AFF, #003E80);
  color: var(--white) !important;
  padding: 8px 14px !important;
  border-radius: 8px !important;
  font-weight: 600 !important;
  box-shadow: 0 4px 10px rgba(0, 122, 255, 0.25);
  transition: all 0.2s ease;
}
.main-nav .nav-taksit:hover,
.main-nav .nav-plaka:hover {
  background: linear-gradient(135deg, #0056b3, #003E80);
  transform: translateY(-1px);
}

.page-main { padding: 24px; }
.container { max-width: 1100px; margin: 0 auto; }

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  padding: 0;
  margin: 0 0 16px;
  font-size: 14px;
  color: var(--ink-soft);
}
.breadcrumb li:not(:last-child)::after { content: ' › '; margin-left: 6px; color: var(--ink-soft); }
.breadcrumb a { color: var(--sky); }

.page-footer {
  text-align: center;
  padding: 24px;
  margin-top: 60px;
  font-size: 13px;
  color: var(--ink-soft);
  background: var(--white);
  border-top: 1px solid var(--sky-pale);
}
.page-footer a { color: var(--sky); }
.page { max-width: 980px; margin: 24px auto; padding: 0 16px; }

/* step1 (landing) ve ortak form kabuğu stilleri */
.feature-pills {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}
.feature-pill {
  background: var(--sky-pale);
  color: var(--sky-dark);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
}

.card {
  background: var(--white);
  border-radius: 16px;
  padding: 24px;
  box-shadow: var(--shadow-md);
}

.section { display: block; }
.section--active { display: block; }
.info-section { margin-bottom: 0; }
.info-section__title--tight { margin-top: 8px; }

.success-card { text-align: center; padding: 32px 16px; }
.success-card__icon { font-size: 48px; color: var(--sky); }
.success-card__title { font-size: 20px; font-weight: 700; margin-top: 8px; }
.success-card__sub { font-size: 14px; color: var(--ink-soft); margin-top: 8px; }

.nav-row { display: flex; align-items: center; justify-content: space-between; margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--sky-pale); }
.btn-back {
  padding: 8px 16px;
  border: 1.5px solid var(--sky-pale);
  border-radius: 8px;
  font-size: 13px;
  color: var(--sky);
}

/* info-section — genel bilgi kartı bloğu (SEO ve içerik sayfaları) */
.info-section {
  position: relative;
  padding: 32px 28px !important;
  border-radius: 16px;
  margin: 24px auto !important;
  max-width: 1080px;
  box-shadow: 0 4px 16px rgba(0, 62, 128, 0.05);
  overflow: hidden;
  transition: box-shadow .25s ease, transform .25s ease;
}
.info-section { padding: 0 20px; background: var(--white); }
.info-section:hover {
  box-shadow: 0 10px 28px rgba(0, 62, 128, 0.09);
}
.info-section + .info-section {
  margin-top: 8px !important;
}
.info-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #007AFF 0%, #5B9BD5 50%, #007AFF 100%);
  opacity: 0.85;
}
.info-section::after {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  bottom: -110px;
  right: -110px;
  background: radial-gradient(circle, rgba(0, 122, 255, 0.06), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.info-section + .info-section { background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%) !important; }
.info-section + .info-section { background: var(--dawn); }
.info-section__title {
  position: relative;
  display: inline-block;
  padding-bottom: 12px;
  margin: 0 0 18px !important;
}
.info-section__title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 64px;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--sky), #5b9bd5);
}
.info-section__title:not(:only-child) {
  display: block;
  text-align: center;
}
.info-section__subtitle {
  font-size: 15px !important;
  line-height: 1.65 !important;
  color: var(--ink-mid, #4b5563) !important;
  text-align: center;
  max-width: 720px;
  margin: 0 auto 28px !important;
}
.info-section h2 { font-family: var(--font-display); font-size: 32px; font-weight: 400; color: var(--ink); text-align: center; margin: 0 0 12px; line-height: 1.2; }
.info-section .section-subtitle { font-size: 15px; line-height: 1.6; color: var(--ink-hint); text-align: center; max-width: 720px; margin: 0 auto 40px; }
.info-section footer, .page-footer, body > footer { margin-top: 80px; text-align: center; padding: 32px 16px; font-size: 13px; color: var(--ink-soft); border-top: 1px solid rgba(168,202,236,0.2); background: rgba(255,255,255,0.3); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.info-section footer a, .page-footer a, body > footer a { color: var(--sky-dark); text-decoration: none; font-weight: 500; transition: color var(--transition); }
.info-section footer a:hover, .page-footer a:hover, body > footer a:hover { color: var(--sky-deep); text-decoration: underline; }
.info-section ul:not([class]) {
  list-style: none;
  padding: 0;
  margin: 16px 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
}
.info-section ul:not([class]) li {
  padding: 12px 16px;
  background: linear-gradient(135deg, #ffffff 0%, #f5f9ff 100%);
  border: 1px solid rgba(91, 155, 213, 0.2);
  border-radius: 10px;
  font-size: 14px;
  color: var(--ink, #1A1A2E);
  font-weight: 500;
  transition: all .2s ease;
  position: relative;
  padding-left: 36px;
}
.info-section ul:not([class]) li::before {
  content: "✓";
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--sky), #5b9bd5);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.info-section ul:not([class]) li:hover {
  border-color: var(--sky, #007AFF);
  transform: translateX(4px);
  box-shadow: 0 4px 12px rgba(0, 62, 128, 0.08);
}
.info-section__back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--white, #fff);
  border: 1px solid rgba(91, 155, 213, 0.3);
  border-radius: 8px;
  color: var(--sky, #007AFF);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all .2s ease;
}
.info-section__back:hover {
  background: var(--sky, #007AFF);
  color: #fff;
  border-color: var(--sky, #007AFF);
  transform: translateX(-3px);
}
.info-section.error-page {
  text-align: center;
  background: linear-gradient(135deg, #fff5f5 0%, #ffffff 100%) !important;
  border: 1px solid rgba(239, 68, 68, 0.2);
}
.info-section.error-page::before {
  background: linear-gradient(90deg, #ef4444 0%, #f87171 50%, #ef4444 100%);
}
@media (max-width: 700px) {
  .info-section {
    padding: 24px 18px !important;
    margin: 16px auto !important;
  }
  .info-section__title { font-size: 24px !important; }
  .info-section__subtitle { font-size: 14px !important; }
}