/* ============================================================
   5A TEKNİK — STYLESHEET
   Renkleri değiştirmek için sadece aşağıdaki :root bloğunu
   (ve js/config.js dosyasındaki aynı değerleri) güncelleyin.
   ============================================================ */

:root {
  /* Marka renkleri (js/config.js ile aynı tutun) */
  --color-primary: #ED7300;
  --color-primary-dark: #C95F00;
  --color-navy: #162C68;
  --color-navy-dark: #101F4A;
  --color-navy-soft: #24397D;
  --color-white: #FFFFFF;

  /* Nötr tonlar */
  --color-bg: #FFFFFF;
  --color-bg-alt: #F5F6FA;
  --color-border: #E3E6EF;
  --color-text: #232838;
  --color-text-muted: #5B6072;
  --color-text-on-navy: #EDEFF7;
  --color-text-on-navy-muted: #B7BEDB;

  /* Tipografi */
  --font-base: "Manrope", "Segoe UI", system-ui, -apple-system, sans-serif;

  /* Ölçüler */
  --container-width: 1180px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --shadow-card: 0 1px 2px rgba(16, 31, 74, 0.06), 0 1px 0 rgba(16, 31, 74, 0.04);
  --transition: 160ms ease;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, p, ul, figure { margin: 0; }
ul { padding: 0; list-style: none; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }

body {
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 0;
}

@media (max-width: 640px) {
  body { padding-bottom: 64px; } /* sabit mobil arama/whatsapp barı için yer */
}

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

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

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

section { padding: 72px 0; }
@media (max-width: 720px) {
  section { padding: 52px 0; }
}

.section-head {
  max-width: 640px;
  margin-bottom: 40px;
}
.section-head h2 {
  font-size: clamp(1.6rem, 1.3rem + 1.2vw, 2.1rem);
  font-weight: 800;
  color: var(--color-navy);
  letter-spacing: -0.01em;
}
.section-head p {
  margin-top: 12px;
  color: var(--color-text-muted);
  font-size: 1.02rem;
}
.section-head.on-navy h2 { color: var(--color-white); }
.section-head.on-navy p { color: var(--color-text-on-navy-muted); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 1rem;
  border: 1.5px solid transparent;
  transition: background var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
  white-space: nowrap;
}
.btn svg { width: 20px; height: 20px; flex-shrink: 0; }
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
}
.btn-primary:hover { background: var(--color-primary-dark); }

.btn-outline {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.55);
  color: var(--color-white);
}
.btn-outline:hover {
  border-color: var(--color-primary);
  background: rgba(237, 115, 0, 0.12);
}

.btn-navy-outline {
  background: transparent;
  border-color: var(--color-navy);
  color: var(--color-navy);
}
.btn-navy-outline:hover {
  background: var(--color-navy);
  color: var(--color-white);
}

.btn-block { width: 100%; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  background: var(--color-navy);
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 14px;
}

.brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.brand img {
  /* Logo oranı (709x352) korunur; yükseklik ile sınırlandırılır. */
  height: 52px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.main-nav a {
  color: var(--color-text-on-navy);
  font-weight: 600;
  font-size: 0.97rem;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}
.main-nav a:hover {
  color: var(--color-white);
  border-color: var(--color-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.header-actions .btn { padding: 11px 20px; font-size: 0.94rem; }

.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  padding: 8px;
  color: var(--color-white);
}
.nav-toggle svg { width: 26px; height: 26px; }

@media (max-width: 860px) {
  .header-actions .btn-outline-header { display: none; }
}

@media (max-width: 720px) {
  .nav-toggle { display: inline-flex; }
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-navy);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 24px 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: none;
  }
  .main-nav.is-open { display: flex; }
  .main-nav a {
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  .header-actions .btn span { display: none; }
  .header-actions .btn { padding: 11px 14px; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  background: var(--color-navy);
  padding: 68px 0 84px;
  position: relative;
  overflow: hidden;
}
.hero .container {
  display: grid;
  grid-template-columns: 1.05fr 0.85fr;
  gap: 56px;
  align-items: center;
}
.hero-kicker {
  color: var(--color-primary);
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 14px;
}
.hero h1 {
  color: var(--color-white);
  font-size: clamp(2.1rem, 1.6rem + 2vw, 3.1rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.015em;
  max-width: 15ch;
}
.hero-lead {
  margin-top: 20px;
  color: var(--color-text-on-navy-muted);
  font-size: 1.08rem;
  max-width: 46ch;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}
.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}
.hero-fact {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-sm);
  color: var(--color-text-on-navy);
  font-size: 0.92rem;
  font-weight: 600;
}
.hero-fact svg { width: 18px; height: 18px; color: var(--color-primary); flex-shrink: 0; }

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-visual svg { width: 100%; height: auto; max-width: 420px; }

@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-visual { order: -1; max-width: 260px; margin-inline: auto; }
  .hero h1 { max-width: none; }
}

/* ============================================================
   SERVICES
   ============================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 900px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .services-grid { grid-template-columns: 1fr; }
}

.service-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 26px 24px;
  background: var(--color-white);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.service-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}
.service-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: rgba(237, 115, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.service-icon svg { width: 24px; height: 24px; color: var(--color-primary); }
.service-card h3 {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--color-navy);
  margin-bottom: 8px;
}
.service-card p {
  font-size: 0.94rem;
  color: var(--color-text-muted);
}

/* ============================================================
   ABOUT + WHY US
   ============================================================ */
.about {
  background: var(--color-bg-alt);
}
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 52px;
  align-items: start;
}
.about-text p { color: var(--color-text-muted); margin-bottom: 16px; font-size: 1.02rem; }
.about-text p:last-child { margin-bottom: 0; }

.why-box {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 30px 28px;
}
.why-box h3 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-navy);
  margin-bottom: 20px;
}
.why-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--color-border);
  font-weight: 600;
  color: var(--color-text);
  font-size: 0.98rem;
}
.why-list li:first-child { border-top: none; padding-top: 0; }
.why-list svg {
  width: 20px; height: 20px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

@media (max-width: 820px) {
  .about-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact {
  background: var(--color-navy);
}
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 44px;
  align-items: stretch;
}
.contact-card {
  background: var(--color-navy-soft);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 32px 30px;
}
.contact-list li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.contact-list li:first-child { border-top: none; padding-top: 0; }
.contact-list svg {
  width: 22px; height: 22px;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}
.contact-list .label {
  display: block;
  font-size: 0.82rem;
  color: var(--color-text-on-navy-muted);
  margin-bottom: 2px;
}
.contact-list .value {
  color: var(--color-white);
  font-weight: 700;
  font-size: 1.02rem;
}
.contact-list a.value:hover { color: var(--color-primary); }

.contact-card .btn { margin-top: 26px; }

.map-wrapper {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: var(--color-white);
  min-height: 320px;
  position: relative;
}
.map-wrapper iframe {
  width: 100%;
  height: 100%;
  min-height: 320px;
  border: 0;
  position: absolute;
  inset: 0;
}

@media (max-width: 820px) {
  .contact-grid { grid-template-columns: 1fr; }
  .map-wrapper { min-height: 280px; }
  .map-wrapper iframe { min-height: 280px; }
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-navy-dark);
  color: var(--color-text-on-navy-muted);
  padding-top: 56px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-brand img {
  height: 40px;
  width: auto;
  margin-bottom: 14px;
  /* Logonun beyaz kısmı koyu zeminde görünür kalır */
}
.footer-brand p {
  font-size: 0.92rem;
  line-height: 1.65;
  max-width: 34ch;
}
.footer-col h3 {
  color: var(--color-white);
  font-size: 0.92rem;
  font-weight: 700;
  margin-bottom: 14px;
}
.footer-col li { font-size: 0.92rem; margin-bottom: 10px; line-height: 1.55; }
.footer-col a:hover { color: var(--color-primary); }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  padding: 20px 0;
  font-size: 0.85rem;
}

@media (max-width: 780px) {
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}

/* ============================================================
   STICKY MOBILE BAR
   ============================================================ */
.mobile-bar {
  display: none;
}
@media (max-width: 640px) {
  .mobile-bar {
    display: grid;
    grid-template-columns: 1fr 1fr;
    position: fixed;
    left: 0; right: 0; bottom: 0;
    z-index: 60;
    box-shadow: 0 -2px 10px rgba(16, 31, 74, 0.18);
  }
  .mobile-bar a {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 15px 10px;
    font-weight: 700;
    font-size: 0.95rem;
  }
  .mobile-bar svg { width: 19px; height: 19px; }
  .mobile-bar .call { background: var(--color-navy); color: var(--color-white); }
  .mobile-bar .whatsapp { background: var(--color-primary); color: var(--color-white); }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition-duration: 0.01ms !important; }
}