/* ============================================================
   DF Diş — dfdis.com kurumsal site
   Saf CSS, dış bağımlılık yok (font/CDN yok — hız önceliği)
   Palet: koyu lacivert zemin + turuncu marka vurgusu
   ============================================================ */

:root {
  --navy: #0e1a2b;
  --navy-2: #16263c;
  --navy-3: #1e3350;
  --orange: #f58220;
  --orange-dark: #d96d10;
  --ink: #1c2733;
  --muted: #5b6b7c;
  --line: #e4e9ef;
  --bg: #f7f9fb;
  --white: #ffffff;
  --wa: #25d366;
  --radius: 14px;
  --shadow: 0 8px 28px rgba(14, 26, 43, .10);
  --shadow-lg: 0 16px 44px rgba(14, 26, 43, .16);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* ---------- Header (eski site gibi: beyaz zemin + lacivert logo) ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, .97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand img { height: 48px; width: auto; }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  color: #3d4f63; font-size: 15px; font-weight: 600;
  padding: 8px 14px; border-radius: 8px;
  transition: color .15s, background .15s;
}
.main-nav a:hover { color: var(--navy); background: #f2f5f8; }
.main-nav a.active { color: var(--orange); }

.btn-nav-cta {
  background: var(--orange); color: #fff !important;
  font-weight: 700; padding: 10px 18px !important; border-radius: 999px;
  margin-left: 8px;
}
.btn-nav-cta:hover { background: var(--orange-dark) !important; }

.nav-toggle {
  display: none; background: none; border: 0; cursor: pointer;
  width: 44px; height: 44px; border-radius: 8px; flex-shrink: 0;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px; background: var(--navy);
  margin: 5px auto; border-radius: 2px; transition: .2s;
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-2) 55%, var(--navy-3) 100%);
  color: #fff; text-align: center;
  padding: 72px 20px 84px;
  position: relative; overflow: hidden;
}
.hero::after {
  content: ""; position: absolute; inset: auto -20% -60% -20%; height: 70%;
  background: radial-gradient(ellipse at center, rgba(245, 130, 32, .18), transparent 65%);
  pointer-events: none;
}
.hero-badge {
  display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .12em;
  text-transform: uppercase; color: var(--orange);
  border: 1px solid rgba(245, 130, 32, .45); border-radius: 999px;
  padding: 7px 18px; margin-bottom: 26px;
}
.hero h1 {
  font-size: 42px; line-height: 1.15; font-weight: 800;
  max-width: 760px; margin: 0 auto 18px;
}
.hero h1 em { font-style: normal; color: var(--orange); }
.hero p.lead {
  font-size: 18px; color: #b9c5d4; max-width: 640px; margin: 0 auto 36px;
}
.hero-ctas { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 1; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 16px; font-weight: 700; border-radius: 999px;
  padding: 15px 30px; cursor: pointer; border: 0;
  transition: transform .15s, box-shadow .15s, background .15s;
}
.btn:active { transform: scale(.98); }
.btn-primary {
  background: var(--orange); color: #fff;
  box-shadow: 0 10px 26px rgba(245, 130, 32, .35), 0 3px 8px rgba(0, 0, 0, .2);
}
.btn-primary:hover { background: var(--orange-dark); }
.btn-ghost {
  background: rgba(255, 255, 255, .08); color: #fff;
  border: 1px solid rgba(255, 255, 255, .22);
}
.btn-ghost:hover { background: rgba(255, 255, 255, .15); }
.btn-wa { background: var(--wa); color: #fff; }
.btn-wa:hover { background: #1fb857; }

/* ---------- Hero split (metin + görsel) ---------- */
.hero.hero-split { text-align: left; padding: 64px 0 72px; }
.hero-grid {
  display: grid; grid-template-columns: 1.15fr 1fr; gap: 48px;
  align-items: center; position: relative; z-index: 1;
}
.hero-grid .hero-badge { margin-bottom: 20px; }
.hero-grid h1 { margin: 0 0 16px; max-width: none; }
.hero-grid p.lead { margin: 0 0 32px; max-width: none; }
.hero-visual img {
  width: 100%; border-radius: 18px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .45);
}
.hero.hero-split .hero-ctas { justify-content: flex-start; }

/* ---------- Kart üstü fotoğraf ---------- */
.card.has-img { padding: 0; overflow: hidden; }
.card.has-img .card-img {
  width: 100%; height: 175px; object-fit: cover; display: block;
}
.card.has-img .card-body { padding: 22px 24px 26px; }
.card.has-img .card-tag { top: 14px; right: 14px; z-index: 2; box-shadow: 0 2px 8px rgba(0,0,0,.18); }

/* ---------- DF Concept bandı (banner görselleri) ---------- */
.concept-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.concept-item {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow);
}
.concept-item img { width: 100%; display: block; }
.concept-item .concept-body { padding: 20px 22px 24px; }
.concept-item h3 { font-size: 18px; margin-bottom: 6px; }
.concept-item p { color: var(--muted); font-size: 14.5px; }

/* ---------- Slogan bloğu ---------- */
.quote-band {
  text-align: center; max-width: 760px; margin: 0 auto;
  padding: 8px 20px;
}
.quote-band blockquote {
  font-size: 27px; line-height: 1.35; font-weight: 700; color: var(--navy);
}
.quote-band blockquote em { font-style: normal; color: var(--orange); }
.quote-band .quote-mark { font-size: 56px; color: var(--orange); line-height: 1; display: block; margin-bottom: 4px; }

/* ---------- Trust bar ---------- */
.trust-bar { background: var(--navy); border-top: 1px solid rgba(255,255,255,.06); }
.trust-inner {
  display: grid; grid-template-columns: repeat(4, 1fr);
  padding: 26px 0;
}
.trust-item { text-align: center; color: #fff; padding: 6px 10px; }
.trust-item b { display: block; font-size: 26px; color: var(--orange); }
.trust-item span { font-size: 13.5px; color: #9fb0c3; }

/* ---------- Sections ---------- */
.section { padding: 72px 0; }
.section.alt { background: var(--white); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 44px; }
.section-head .kicker {
  font-size: 13px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--orange); margin-bottom: 10px;
}
.section-head h2 { font-size: 32px; line-height: 1.2; margin-bottom: 12px; }
.section-head p { color: var(--muted); font-size: 16.5px; }

/* ---------- Cards grid ---------- */
.grid { display: grid; gap: 22px; }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 26px; box-shadow: var(--shadow);
  transition: transform .18s, box-shadow .18s;
  position: relative;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card .icon { font-size: 34px; margin-bottom: 14px; line-height: 1; }
.card h3 { font-size: 19px; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 15px; }
.card .card-link {
  display: inline-block; margin-top: 14px; color: var(--orange); font-weight: 700; font-size: 14.5px;
}
.card-tag {
  position: absolute; top: 18px; right: 18px;
  background: #fff3e6; color: var(--orange-dark);
  font-size: 11.5px; font-weight: 800; letter-spacing: .04em;
  padding: 4px 10px; border-radius: 999px;
}

/* ---------- Feature rows (Neden DF) ---------- */
.feature-row {
  display: flex; gap: 18px; align-items: flex-start;
  background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow);
}
.feature-row .icon {
  flex-shrink: 0; width: 52px; height: 52px; border-radius: 12px;
  background: #fff3e6; display: flex; align-items: center; justify-content: center;
  font-size: 26px;
}
.feature-row h3 { font-size: 17.5px; margin-bottom: 6px; }
.feature-row p { color: var(--muted); font-size: 14.5px; }

/* ---------- Steps (tedavi süreci) ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
.step {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 20px; text-align: center; box-shadow: var(--shadow);
}
.step .num {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--navy); color: var(--orange); font-weight: 800; font-size: 17px;
  display: flex; align-items: center; justify-content: center; margin: 0 auto 14px;
}
.step h3 { font-size: 16px; margin-bottom: 6px; }
.step p { color: var(--muted); font-size: 13.5px; }

/* ---------- Şube kartları ---------- */
.sube-group { margin-bottom: 46px; }
.sube-group > h3 {
  font-size: 21px; margin-bottom: 18px;
  display: flex; align-items: center; gap: 10px;
}
.sube-group > h3 .count {
  font-size: 13px; font-weight: 700; color: var(--orange-dark);
  background: #fff3e6; border-radius: 999px; padding: 3px 11px;
}
.sube-card {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow);
  display: flex; flex-direction: column; gap: 10px;
}
.sube-card h4 { font-size: 17.5px; }
.sube-card .addr { color: var(--muted); font-size: 14px; min-height: 22px; }
.sube-card .tel {
  font-weight: 700; font-size: 16px; color: var(--navy);
  display: inline-flex; align-items: center; gap: 8px;
}
.sube-card .tel:hover { color: var(--orange-dark); }
.sube-actions { display: flex; gap: 10px; margin-top: 6px; flex-wrap: wrap; }
.sube-actions a {
  flex: 1; min-width: 120px; text-align: center;
  font-size: 14px; font-weight: 700; border-radius: 10px; padding: 10px 12px;
}
.sube-actions .wa { background: var(--wa); color: #fff; }
.sube-actions .wa:hover { background: #1fb857; }
.sube-actions .map { background: var(--bg); color: var(--ink); border: 1px solid var(--line); }
.sube-actions .map:hover { border-color: var(--muted); }
.sube-actions .ig {
  background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888);
  color: #fff;
}
.sube-actions .ig:hover { filter: brightness(1.1); }

/* ---------- CTA band ---------- */
.cta-band {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-3) 100%);
  border-radius: 20px; color: #fff; text-align: center;
  padding: 56px 28px; position: relative; overflow: hidden;
}
.cta-band::after {
  content: ""; position: absolute; inset: auto -10% -70% -10%; height: 90%;
  background: radial-gradient(ellipse at center, rgba(245, 130, 32, .22), transparent 65%);
  pointer-events: none;
}
.cta-band h2 { font-size: 30px; margin-bottom: 12px; }
.cta-band p { color: #b9c5d4; margin-bottom: 28px; font-size: 16.5px; }
.cta-band .btn { position: relative; z-index: 1; }

/* ---------- İletişim ---------- */
.contact-box {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow);
}
.contact-box h3 { font-size: 18px; margin-bottom: 14px; }
.contact-box ul { list-style: none; }
.contact-box li {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 0; border-bottom: 1px solid var(--line);
  font-size: 15px;
}
.contact-box li:last-child { border-bottom: 0; }
.contact-box li b { min-width: 110px; }

/* ---------- Page hero (iç sayfalar) ---------- */
.page-hero {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff; text-align: center; padding: 54px 20px;
}
.page-hero h1 { font-size: 34px; margin-bottom: 10px; }
.page-hero p { color: #b9c5d4; max-width: 620px; margin: 0 auto; font-size: 16.5px; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy); color: #9fb0c3;
  padding: 52px 0 32px; font-size: 14.5px;
}
.footer-grid {
  display: grid; grid-template-columns: 1.3fr .7fr 1fr 1.2fr; gap: 32px;
  padding-bottom: 34px; border-bottom: 1px solid rgba(255, 255, 255, .09);
}
.footer-grid img { height: 40px; width: auto; margin-bottom: 14px; }
.footer-grid h4 { color: #fff; font-size: 15px; margin-bottom: 12px; }
.footer-grid ul { list-style: none; }
.footer-grid li { margin-bottom: 8px; }
.footer-grid a:hover { color: #fff; }
.footer-bottom {
  padding-top: 22px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  font-size: 13px; color: #6d7f93;
}

/* ---------- Floating WhatsApp ---------- */
.wa-float {
  position: fixed; right: 18px; bottom: 18px; z-index: 90;
  width: 58px; height: 58px; border-radius: 50%;
  background: var(--wa); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 30px; box-shadow: 0 10px 26px rgba(37, 211, 102, .45);
  transition: transform .15s;
}
.wa-float:hover { transform: scale(1.08); }

/* ============================================================
   Mobil (≤768px)
   ============================================================ */
@media (max-width: 900px) {
  .grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .main-nav {
    display: none; position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 2px;
    background: #fff; padding: 12px 16px 18px;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 18px 30px rgba(14, 26, 43, .16);
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 13px 14px; font-size: 16px; }
  .btn-nav-cta { margin: 10px 0 0; text-align: center; }

  .hero { padding: 52px 20px 60px; }
  .hero h1 { font-size: 30px; }
  .hero p.lead { font-size: 16px; }
  .hero.hero-split { padding: 40px 0 52px; }
  .hero-grid { grid-template-columns: 1fr; gap: 30px; }
  .concept-grid { grid-template-columns: 1fr; }
  .quote-band blockquote { font-size: 21px; }
  .trust-inner { grid-template-columns: repeat(2, 1fr); gap: 6px 0; padding: 18px 0; }
  .trust-item b { font-size: 21px; }

  .section { padding: 52px 0; }
  .section-head h2 { font-size: 26px; }
  .grid.cols-3, .grid.cols-2 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 26px; }
  .page-hero h1 { font-size: 27px; }
  .cta-band { padding: 42px 20px; }
  .cta-band h2 { font-size: 24px; }
}

@media (max-width: 420px) {
  .steps { grid-template-columns: 1fr; }
  .hero-ctas .btn { width: 100%; }
}