/* ===== TEMA ===== */
:root {
  --primary: #f97316;
  --primary-dark: #ea580c;
  --primary-light: #ffedd5;
  --dark: #f172a;
  --dark-2: #1e293b;
  --text: #334155;
  --muted: #64748b;
  --bg: #ffffff;
  --bg-alt: #f8fafc;
  --border: #e2e8f;
  --radius: 16px;
  --shadow:  10px 30px rgba(15, 23, 42, .08);
  --shadow-lg:  20px 50px rgba(15, 23, 42, .14);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
}

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

.container {
  width: min(114px, 92%);
  margin:  auto;
}

/* ===== BUTONLAR ===== */
.btn {
  display: inline-block;
  padding: .9rem 1.8rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  transition: all .25s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  box-shadow:  8px 24px rgba(249, 115, 22, .35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow:  12px 30px rgba(249, 115, 22, .45); }

.btn-ghost {
  background: rgba(255, 255, 255, .1);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .3);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover { background: rgba(255, 255, 255, .2); }

.btn-sm { padding: .55rem 1.2rem; font-size: .9rem; }
.btn-block { width: 100%; text-align: center; }

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: ; left: ; right: ;
  z-index: 100;
  padding: 1rem ;
  transition: all .3s ease;
}
.navbar.scrolled {
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  padding: .6rem ;
}
.navbar.scrolled .logo,
.navbar.scrolled .nav-links a { color: var(--dark); }

.nav-inner { display: flex; align-items: center; justify-content: space-between; }

.logo {
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
  display: flex;
  align-items: center;
  gap: .5rem;
  letter-spacing: -.5px;
}
.logo strong { color: var(--primary); }
.logo-icon { font-size: 1.5rem; }

.nav-links { display: flex; align-items: center; gap: 1.8rem; }
.nav-links a { color: rgba(255, 255, 255, .9); font-weight: 500; font-size: .95rem; transition: color .2s; }
.nav-links a:hover { color: var(--primary); }
.nav-links .btn { color: #fff; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: .4rem;
}
.nav-toggle span {
  width: 24px; height: 2.5px;
  background: #fff;
  border-radius: 2px;
  transition: all .3s;
}
.navbar.scrolled .nav-toggle span { background: var(--dark); }

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  color: #fff;
  background: linear-gradient(160deg, #f172a %, #1e293b 55%, #334155 100%);
  overflow: hidden;
  padding: 8rem  4rem;
}
.hero-bg {
  position: absolute;
  inset: ;
  background:
    radial-gradient(circle at 80% 20%, rgba(249, 115, 22, .25), transparent 45%),
    radial-gradient(circle at 15% 85%, rgba(249, 115, 22, .15), transparent 40%);
  pointer-events: none;
}
.hero-content { position: relative; z-index: 2; max-width: 780px; }

.badge {
  display: inline-block;
  background: rgba(249, 115, 22, .15);
  border: 1px solid rgba(249, 115, 22, .4);
  color: #fdba74;
  padding: .45rem 1rem;
  border-radius: 999px;
  font-size: .85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(2.3rem, 5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 1.2rem;
}
.gradient-text {
  background: linear-gradient(90deg, #fb923c, #f97316, #fdba74);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-sub {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, .8);
  max-width: 560px;
  margin-bottom: 2.2rem;
}

.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 3.5rem; }

.hero-stats {
  display: flex;
  gap: 3rem;
  flex-wrap: wrap;
  border-top: 1px solid rgba(255, 255, 255, .15);
  padding-top: 2rem;
}
.hero-stat strong {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: #fdba74;
}
.hero-stat span { color: rgba(255, 255, 255, .7); font-size: .9rem; }

/* ===== BÖLÜMLER ===== */
.section { padding: 5.5rem ; }
.section-alt { background: var(--bg-alt); }

.section-head {
  text-align: center;
  max-width: 620px;
  margin:  auto 3rem;
}
.section-tag {
  display: inline-block;
  color: var(--primary);
  background: var(--primary-light);
  padding: .3rem .9rem;
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: .9rem;
}
.section-head h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -.8px;
  margin-bottom: .8rem;
}
.section-head p { color: var(--muted); font-size: 1.05rem; }

/* ===== KARTLAR ===== */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.6rem;
}
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: all .3s ease;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.card-icon {
  width: 58px; height: 58px;
  display: grid;
  place-items: center;
  font-size: 1.6rem;
  background: var(--primary-light);
  border-radius: 14px;
  margin-bottom: 1.2rem;
}
.card h3 { color: var(--dark); font-size: 1.15rem; font-weight: 700; margin-bottom: .6rem; }
.card p { color: var(--muted); font-size: .95rem; }

/* ===== KARŞILAŞTIRMA ===== */
.compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1.5rem;
  align-items: center;
  max-width: 900px;
  margin:  auto;
}
.compare-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  border-top: 5px solid var(--border);
}
.compare-benzin { border-top-color: #94a3b8; }
.compare-lpg {
  border-top-color: var(--primary);
  background: linear-gradient(180deg, #fff, #fff7ed);
}
.compare-card h3 { color: var(--dark); margin-bottom: 1rem; }
.compare-card li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: .55rem ;
  border-bottom: 1px dashed var(--border);
  font-size: .95rem;
}
.compare-card li:last-child { border-bottom: none; }
.compare-card strong { color: var(--dark); }

.compare-bar {
  height: 10px;
  background: #f1f5f9;
  border-radius: 999px;
  overflow: hidden;
  margin-top: 1.2rem;
}
.compare-bar span {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, #94a3b8, #cbd5e1);
}
.compare-lpg .compare-bar span { background: linear-gradient(90deg, var(--primary), var(--primary-dark)); }

.save-note {
  margin-top: 1rem;
  color: var(--primary-dark);
  font-weight: 700;
  text-align: center;
}

.compare-vs {
  font-weight: 900;
  font-size: 1.4rem;
  color: var(--primary);
  background: var(--primary-light);
  width: 56px; height: 56px;
  border-radius: 50%;
  display: grid;
  place-items: center;
}

.disclaimer { text-align: center; color: var(--muted); font-size: .82rem; margin-top: 1.5rem; }

/* ===== SÜREÇ ===== */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.6rem;
}
.step {
  text-align: center;
  padding: 2rem 1.4rem;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--border);
  transition: all .3s ease;
  position: relative;
}
.step:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.step-num {
  width: 48px; height: 48px;
  display: grid;
  place-items: center;
  margin:  auto 1rem;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-weight: 800;
  font-size: 1.2rem;
  border-radius: 50%;
  box-shadow:  6px 16px rgba(249, 115, 22, .35);
}
.step h3 { color: var(--dark); font-size: 1.05rem; margin-bottom: .5rem; }
.step p { color: var(--muted); font-size: .9rem; }

/* ===== SSS ===== */
.faq { max-width: 760px; margin:  auto; display: flex; flex-direction: column; gap: .9rem; }
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding:  1.4rem;
  cursor: pointer;
  transition: all .3s ease;
}
.faq-item:hover { border-color: var(--primary); }
.faq-item summary {
  padding: 1.1rem ;
  font-weight: 600;
  color: var(--dark);
  font-size: 1rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--primary);
  transition: transform .25s ease;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { padding-bottom: 1.2rem; color: var(--muted); font-size: .95rem; }

/* ===== İLETİŞİM ===== */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: start;
}
.contact-info h2 {
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -.6px;
  margin-bottom: .8rem;
}
.contact-info > p { color: var(--muted); margin-bottom: 1.6rem; }

.contact-list { display: flex; flex-direction: column; gap: .9rem; }
.contact-list li { font-size: 1rem; color: var(--dark); font-weight: 500; }
.contact-list a { color: var(--primary); font-weight: 600; }
.contact-list a:hover { text-decoration: underline; }

.contact-form {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
}
.form-row { margin-bottom: 1rem; }
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: .9rem 1.1rem;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-family: inherit;
  font-size: .95rem;
  color: var(--dark);
  transition: border-color .2s, box-shadow .2s;
  resize: vertical;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow:    3px rgba(249, 115, 22, .15);
}
.form-note {
  margin-top: 1rem;
  font-size: .9rem;
  font-weight: 600;
  text-align: center;
  min-height: 1.4em;
}
.form-note.success { color: #16a34a; }
.form-note.error { color: #dc2626; }

/* ===== FOOTER ===== */
.footer {
  background: var(--dark);
  color: rgba(255, 255, 255, .7);
  padding: 2rem ;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: .9rem;
}
.footer-links { display: flex; gap: 1.4rem; }
.footer-links a { transition: color .2s; }
.footer-links a:hover { color: var(--primary); }

/* ===== RESPONSIVE ===== */
@media (max-width: 860px) {
  .nav-links {
    position: fixed;
    top: ; right: -100%;
    width: min(300px, 80%);
    height: 100vh;
    background: var(--dark);
    flex-direction: column;
    justify-content: center;
    gap: 1.6rem;
    transition: right .35s ease;
    padding: 2rem;
  }
  .nav-links.open { right: ; }
  .nav-links a { color: #fff !important; font-size: 1.1rem; }
  .nav-toggle { display: flex; position: relative; z-index: 101; }

  .compare { grid-template-columns: 1fr; }
  .compare-vs { justify-self: center; }

  .contact-wrap { grid-template-columns: 1fr; }
}

@media (max-width: 520px) {
  .hero { padding-top: 7rem; }
  .hero-stats { gap: 1.5rem; }
  .hero-stat strong { font-size: 1.6rem; }
  .footer-inner { flex-direction: column; text-align: center; }
}