/* ==========================================================================
   Başkent Güney SK — Site Stili
   Renkler kolayca değiştirilebilir olması için CSS değişkenleri olarak
   tanımlandı. Logo teslim edildiğinde --color-primary / --color-accent
   değerlerini güncellemek yeterli olacaktır.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Rubik:wght@500;600;700;800&family=Karla:wght@400;500;600&display=swap');

:root {
  --color-primary: #0e6690;      /* logo mavisi - ana renk */
  --color-primary-dark: #073349;
  --color-primary-light: #1786b0;
  --color-accent: #29b6f6;       /* logo açık mavisi - vurgu rengi */
  --color-accent-light: #6cd4fa;
  --color-text: #eef1f6;
  --color-text-muted: #b9d3de;
  --color-bg: #ffffff;
  --color-bg-alt: #f4f6fa;
  --font-heading: 'Rubik', sans-serif;
  --font-body: 'Karla', sans-serif;
  --radius: 10px;
  --shadow: 0 10px 30px rgba(11, 37, 69, 0.12);
  --container-width: 1180px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: #1c2733;
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: 999px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 15px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-primary-dark);
}
.btn-primary:hover { background: var(--color-accent-light); transform: translateY(-2px); }

.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,0.5);
  color: #fff;
}
.btn-outline:hover { background: rgba(255,255,255,0.12); transform: translateY(-2px); }

.btn-outline-dark {
  background: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.btn-outline-dark:hover { background: var(--color-primary); color: #fff; }

.section { padding: 90px 0; }
.section-alt { background: var(--color-bg-alt); }

.section-tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent);
  background: rgba(212, 160, 23, 0.12);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 18px;
}

.section-title { font-size: clamp(28px, 4vw, 40px); margin-bottom: 16px; }
.section-lead { color: #4c5a6b; font-size: 18px; max-width: 640px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-primary);
  box-shadow: 0 2px 20px rgba(0,0,0,0.15);
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
}

.brand-badge {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: #fff;
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}
.brand-badge img { width: 100%; height: 100%; object-fit: contain; }

.img-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  font-family: var(--font-heading);
  font-weight: 800;
  text-align: center;
  line-height: 1.2;
}
.brand-badge .img-fallback { color: var(--color-primary); font-size: 13px; letter-spacing: .5px; }
.hero-visual-badge .img-fallback { color: var(--color-primary); font-size: 15px; letter-spacing: 3px; }

.brand-text { line-height: 1.15; }
.brand-text strong { display: block; font-family: var(--font-heading); font-size: 17px; letter-spacing: .5px; }
.brand-text span { display: block; font-size: 11px; letter-spacing: 2px; color: var(--color-text-muted); text-transform: uppercase; }

.main-nav ul {
  display: flex;
  gap: 8px;
  list-style: none;
}

.main-nav a {
  color: var(--color-text);
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 15px;
  padding: 10px 16px;
  border-radius: 8px;
  transition: background .15s ease, color .15s ease;
}

.main-nav a:hover,
.main-nav a.active {
  background: rgba(255,255,255,0.1);
  color: var(--color-accent-light);
}

.header-cta { display: flex; align-items: center; gap: 14px; }
.header-cta .btn { padding: 11px 22px; font-size: 14px; }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
}
.menu-toggle span,
.menu-toggle::before,
.menu-toggle::after {
  content: '';
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  transition: transform .2s ease, opacity .2s ease;
}
.menu-toggle span { margin: 5px 0; }

.nav-overlay { display: none; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background:
    radial-gradient(circle at 15% 20%, rgba(212,160,23,0.18), transparent 45%),
    linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 55%, var(--color-primary-light) 100%);
  color: #fff;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.035) 0 2px, transparent 2px 40px);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  padding: 110px 0 100px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 50px;
  align-items: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent-light);
  margin-bottom: 22px;
}
.hero-eyebrow::before {
  content: '';
  width: 30px;
  height: 2px;
  background: var(--color-accent);
}

.hero h1 {
  color: #fff;
  font-size: clamp(34px, 5vw, 54px);
  margin-bottom: 20px;
}
.hero h1 em { font-style: normal; color: var(--color-accent-light); }

.hero p {
  color: var(--color-text-muted);
  font-size: 18px;
  max-width: 520px;
  margin-bottom: 34px;
}

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

.hero-stats {
  display: flex;
  gap: 34px;
  margin-top: 50px;
  flex-wrap: wrap;
}
.hero-stats div strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 30px;
  color: var(--color-accent-light);
}
.hero-stats div span { font-size: 13px; color: var(--color-text-muted); letter-spacing: .5px; }

.hero-visual {
  position: relative;
  aspect-ratio: 4/5;
  border-radius: 24px;
  background: linear-gradient(160deg, rgba(255,255,255,0.08), rgba(255,255,255,0.02));
  border: 1px solid rgba(255,255,255,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-visual-badge {
  width: 62%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #ffffff, #eef6fb 70%, #d9ecf6 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 22px;
  box-shadow: 0 30px 60px rgba(0,0,0,0.35);
}
.hero-visual-badge img { width: 100%; height: 100%; object-fit: contain; }

/* ---------- Marquee strip ---------- */
.strip {
  background: var(--color-accent);
  color: var(--color-primary-dark);
  padding: 14px 0;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 1px;
  text-align: center;
}

/* ---------- Cards / Neden Biz ---------- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 50px;
}

.card {
  background: #fff;
  border: 1px solid #e7ebf1;
  border-radius: var(--radius);
  padding: 34px 28px;
  box-shadow: var(--shadow);
  transition: transform .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: 0 18px 40px rgba(11,37,69,0.16); }

.card-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--color-primary);
  color: var(--color-accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 22px;
}

.card h3 { font-size: 19px; margin-bottom: 10px; }
.card p { color: #5a6675; font-size: 15px; }

/* ---------- Split / About preview ---------- */
.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items: center;
}

.split-visual {
  aspect-ratio: 1/1;
  border-radius: 20px;
  background: linear-gradient(150deg, var(--color-primary), var(--color-primary-light));
  position: relative;
  overflow: hidden;
}
.split-visual::before {
  content: '⚽';
  position: absolute;
  font-size: 180px;
  opacity: .15;
  right: -20px;
  bottom: -30px;
}

.split-list { list-style: none; margin-top: 26px; display: grid; gap: 14px; }
.split-list li { display: flex; gap: 12px; align-items: flex-start; font-size: 15.5px; color: #3a4756; }
.split-list li::before {
  content: '✓';
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-primary-dark);
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

/* ---------- CTA / Kayıt banner ---------- */
.cta-banner {
  background: linear-gradient(120deg, var(--color-primary-dark), var(--color-primary));
  color: #fff;
  border-radius: 24px;
  padding: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}
.cta-banner h2 { color: #fff; font-size: 28px; margin-bottom: 10px; }
.cta-banner p { color: var(--color-text-muted); font-size: 16px; }

/* ---------- News cards ---------- */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 50px;
}
.news-card {
  display: block;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid #e7ebf1;
  box-shadow: var(--shadow);
  background: #fff;
  transition: transform .2s ease, box-shadow .2s ease;
}
.news-card:hover { transform: translateY(-6px); box-shadow: 0 18px 40px rgba(11,37,69,0.16); }
.news-thumb {
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.5);
  font-size: 34px;
}
.news-card-body { padding: 22px 24px 26px; }
.news-date { font-size: 12px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--color-accent); font-weight: 700; margin-bottom: 8px; }
.news-card-body h3 { font-size: 17px; margin-bottom: 8px; }
.news-card-body p { font-size: 14.5px; color: #5a6675; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}
.info-list { list-style: none; display: grid; gap: 22px; margin-top: 26px; }
.info-list li { display: flex; gap: 16px; align-items: flex-start; }
.info-icon {
  width: 44px; height: 44px; border-radius: 12px;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; font-size: 18px;
}
.info-list strong { display: block; font-family: var(--font-heading); font-size: 15px; margin-bottom: 2px; }
.info-list span { color: #5a6675; font-size: 14.5px; }

.map-embed {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid #e7ebf1;
  height: 100%;
  min-height: 340px;
}
.map-embed iframe { width: 100%; height: 100%; min-height: 340px; border: 0; }

.form-card {
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  padding: 34px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 13px; font-weight: 600; color: var(--color-primary); }
.field input, .field textarea, .field select {
  border: 1px solid #d6dde6;
  border-radius: 8px;
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 14.5px;
  background: #fff;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}
.form-card .btn { width: 100%; margin-top: 6px; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-primary-dark);
  color: var(--color-text-muted);
  padding: 60px 0 26px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-grid h4 { color: #fff; font-size: 15px; margin-bottom: 18px; letter-spacing: .5px; }
.footer-grid ul { list-style: none; display: grid; gap: 10px; }
.footer-grid a { font-size: 14.5px; transition: color .15s ease; }
.footer-grid a:hover { color: var(--color-accent-light); }
.footer-brand p { font-size: 14.5px; margin: 16px 0 20px; max-width: 320px; }
.social-row { display: flex; gap: 10px; }
.social-row a {
  width: 38px; height: 38px; border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  font-size: 15px;
}
.social-row a:hover { background: var(--color-accent); color: var(--color-primary-dark); }
.footer-bottom {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 13px;
}

/* ---------- Page header (sub pages) ---------- */
.page-header {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: #fff;
  padding: 70px 0 60px;
  text-align: center;
}
.page-header .section-tag { background: rgba(212,160,23,0.18); }
.page-header h1 { color: #fff; font-size: clamp(30px, 4.5vw, 42px); }
.breadcrumb { margin-top: 14px; font-size: 14px; color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-accent-light); }

.timeline { display: grid; gap: 26px; margin-top: 40px; }
.timeline-item { display: flex; gap: 22px; }
.timeline-year {
  flex-shrink: 0; width: 88px; font-family: var(--font-heading); font-weight: 800;
  color: var(--color-accent); font-size: 20px; padding-top: 3px;
}
.timeline-content { border-left: 2px solid #e7ebf1; padding-left: 22px; padding-bottom: 6px; }
.timeline-content h3 { font-size: 17px; margin-bottom: 6px; }
.timeline-content p { color: #5a6675; font-size: 15px; }

.values-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 44px; }
.value-item { text-align: center; }
.value-icon {
  width: 64px; height: 64px; border-radius: 50%; margin: 0 auto 16px;
  background: var(--color-bg-alt); color: var(--color-primary);
  display: flex; align-items: center; justify-content: center; font-size: 26px;
}
.value-item h3 { font-size: 16px; margin-bottom: 6px; }
.value-item p { font-size: 14px; color: #5a6675; }

/* ---------- Blog / haber detay sayfası ---------- */
.post-cover {
  aspect-ratio: 21/9;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.55);
  font-size: 56px;
  margin-bottom: 44px;
  overflow: hidden;
}
.post-cover img { width: 100%; height: 100%; object-fit: cover; }

.post-body { max-width: 760px; margin: 0 auto; }
.post-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
  font-family: var(--font-heading);
  font-size: 13px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 700;
}
.post-body h1 { font-size: clamp(26px, 4vw, 36px); margin-bottom: 30px; }
.post-body p { margin-bottom: 18px; font-size: 16.5px; color: #33404d; }
.post-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 14.5px;
  color: var(--color-primary);
}
.post-back:hover { color: var(--color-accent); }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .hero-inner { grid-template-columns: 1fr; padding: 70px 0 60px; }
  .hero-visual { max-width: 340px; margin: 0 auto; }
  .cards-grid { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; }
  .split-visual { max-width: 380px; margin: 0 auto; aspect-ratio: 16/10; }
  .news-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .values-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .main-nav, .header-cta .btn-outline { display: none; }
  .menu-toggle { display: flex; }
  .cards-grid, .news-grid, .footer-grid, .values-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .cta-banner { padding: 40px 28px; flex-direction: column; text-align: center; }
  .section { padding: 60px 0; }
  .hero-stats { gap: 24px; }

  .nav-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: var(--color-primary-dark);
    z-index: 200;
    transform: translateX(100%);
    transition: transform .25s ease;
    padding: 24px;
  }
  .nav-overlay.open { transform: translateX(0); }
  .nav-overlay-top { display: flex; justify-content: flex-end; margin-bottom: 40px; }
  .nav-overlay-close { background: none; border: none; color: #fff; font-size: 28px; cursor: pointer; }
  .nav-overlay ul { list-style: none; display: grid; gap: 6px; }
  .nav-overlay a {
    display: block; color: #fff; font-family: var(--font-heading);
    font-size: 20px; padding: 14px 6px; border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .nav-overlay .btn { margin-top: 26px; width: 100%; }
}