/* =====================================================
   TABU BİLİŞİM - ANA CSS
   ===================================================== */

:root {
  --primary: #0f3460;
  --secondary: #e94560;
  --accent: #16213e;
  --dark: #0a0a1a;
  --light: #f8f9fa;
  --text: #333;
  --text-light: #666;
  --white: #fff;
  --border: #e0e0e0;
  --success: #28a745;
  --warning: #ffc107;
  --danger: #dc3545;
  --info: #17a2b8;
  --shadow: 0 4px 20px rgba(0,0,0,.08);
  --shadow-hover: 0 8px 30px rgba(0,0,0,.15);
  --radius: 10px;
  --transition: all .3s ease;
}

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

html { scroll-behavior: smooth; }

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

a { text-decoration: none; color: inherit; transition: var(--transition); }
img { max-width: 100%; height: auto; }

/* ===== HEADER ===== */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(15, 52, 96, 0.97);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: var(--transition);
  box-shadow: 0 2px 20px rgba(0,0,0,.2);
}

#header.scrolled {
  background: var(--primary);
  box-shadow: 0 4px 20px rgba(0,0,0,.3);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 75px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--white);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -.5px;
}

.logo-icon {
  width: 45px; height: 45px;
  background: linear-gradient(135deg, var(--secondary), #ff6b6b);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #fff;
  flex-shrink: 0;
}

.logo span { color: var(--secondary); }

nav { display: flex; align-items: center; gap: 5px; }

nav a {
  color: rgba(255,255,255,.85);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
}

nav a:hover, nav a.active {
  color: #fff;
  background: rgba(255,255,255,.1);
}

.dropdown { position: relative; }

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 10px 40px rgba(0,0,0,.15);
  min-width: 230px;
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: var(--transition);
  z-index: 999;
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text) !important;
  padding: 10px 14px !important;
  border-radius: 8px !important;
  font-size: 13px;
  background: transparent !important;
}

.dropdown-menu a:hover { background: var(--light) !important; color: var(--primary) !important; }
.dropdown-menu a i { width: 18px; color: var(--secondary); }

.header-cta {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  justify-content: center;
  text-decoration: none;
}

.btn-primary {
  background: var(--secondary);
  color: #fff;
}
.btn-primary:hover {
  background: #c73652;
  transform: translateY(-1px);
  box-shadow: 0 5px 15px rgba(233,69,96,.4);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,.5);
}
.btn-outline:hover {
  background: rgba(255,255,255,.1);
  border-color: rgba(255,255,255,.8);
}

.btn-white {
  background: #fff;
  color: var(--primary);
}
.btn-white:hover {
  background: var(--light);
  transform: translateY(-1px);
}

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

.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-warning { background: var(--warning); color: #333; }
.btn-info { background: var(--info); color: #fff; }

.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-lg { padding: 14px 30px; font-size: 16px; }
.btn-block { width: 100%; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
}
.hamburger span {
  width: 25px; height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== HERO SLIDER ===== */
#hero {
  margin-top: 75px;
  height: calc(100vh - 75px);
  min-height: 550px;
  max-height: 750px;
  position: relative;
  overflow: hidden;
}

.slide {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  display: flex;
  align-items: center;
  opacity: 0;
  transition: opacity 1s ease;
  padding: 60px 20px;
}

.slide.active { opacity: 1; }

.slide-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

.slide-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15,52,96,.92) 0%, rgba(10,10,26,.7) 100%);
}

.slide-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
}

.slide-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(233,69,96,.2);
  border: 1px solid rgba(233,69,96,.4);
  color: #ff8fa3;
  padding: 6px 14px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
}

.slide-content h1 {
  font-size: clamp(32px, 5vw, 58px);
  font-weight: 800;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 20px;
  max-width: 750px;
}

.slide-content h1 span { color: var(--secondary); }

.slide-content p {
  font-size: clamp(15px, 2vw, 18px);
  color: rgba(255,255,255,.8);
  max-width: 580px;
  margin-bottom: 35px;
  line-height: 1.7;
}

.slide-btns { display: flex; gap: 15px; flex-wrap: wrap; }

.slide-dots {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 10;
}

.slide-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: rgba(255,255,255,.4);
  cursor: pointer;
  transition: var(--transition);
}
.slide-dot.active { background: var(--secondary); width: 28px; border-radius: 5px; }

/* ===== SECTION ===== */
.section { padding: 90px 20px; }
.section-sm { padding: 60px 20px; }

.container { max-width: 1280px; margin: 0 auto; }
.container-sm { max-width: 900px; margin: 0 auto; }

.section-header { text-align: center; margin-bottom: 60px; }
.section-header .badge {
  display: inline-block;
  background: rgba(233,69,96,.1);
  color: var(--secondary);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section-header h2 {
  font-size: clamp(26px, 4vw, 42px);
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 15px;
  line-height: 1.2;
}
.section-header p {
  color: var(--text-light);
  font-size: 16px;
  max-width: 600px;
  margin: 0 auto;
}

/* ===== STATS ===== */
#stats {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  padding: 60px 20px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.stat-item {
  text-align: center;
  color: #fff;
}

.stat-number {
  font-size: 48px;
  font-weight: 800;
  line-height: 1;
  color: var(--secondary);
  margin-bottom: 8px;
}

.stat-label {
  font-size: 14px;
  opacity: .8;
  text-transform: uppercase;
  letter-spacing: .5px;
}

/* ===== HİZMETLER ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 25px;
}

.service-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 35px 30px;
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transform: scaleX(0);
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: transparent;
}
.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  width: 65px; height: 65px;
  background: linear-gradient(135deg, rgba(15,52,96,.08), rgba(233,69,96,.08));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: var(--primary);
  margin-bottom: 22px;
  transition: var(--transition);
}
.service-card:hover .service-icon {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
}

.service-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}

.service-card p {
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 20px;
}

.service-link {
  color: var(--secondary);
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 5px;
}
.service-link:hover gap { gap: 10px; }
.service-link i { transition: var(--transition); }
.service-card:hover .service-link i { transform: translateX(4px); }

/* ===== HAKKIMIZDA ===== */
#hakkimizda { background: var(--light); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-img-main {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-hover);
}

.about-img-main img { width: 100%; height: 400px; object-fit: cover; }

.about-badge-float {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  padding: 20px 25px;
  border-radius: 16px;
  text-align: center;
  box-shadow: var(--shadow-hover);
}

.about-badge-float .num { font-size: 36px; font-weight: 800; }
.about-badge-float .label { font-size: 12px; opacity: .8; }

.about-content h2 {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 18px;
}

.about-list { list-style: none; margin: 25px 0; }
.about-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  color: var(--text);
  font-size: 15px;
}
.about-list li i { color: var(--secondary); font-size: 16px; }

/* ===== NEDEN BİZ ===== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.why-card {
  text-align: center;
  padding: 40px 25px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.why-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); border-color: transparent; }

.why-icon {
  width: 75px; height: 75px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  color: #fff;
  margin: 0 auto 20px;
}

.why-card h3 { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 12px; }
.why-card p { color: var(--text-light); font-size: 14px; line-height: 1.7; }

/* ===== REFERANSLAR ===== */
#referanslar { background: var(--light); }
.refs-track {
  display: flex;
  gap: 40px;
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
}
.ref-item {
  padding: 15px 25px;
  background: #fff;
  border-radius: 10px;
  border: 1px solid var(--border);
  font-weight: 700;
  color: var(--text-light);
  font-size: 15px;
  transition: var(--transition);
}
.ref-item:hover { color: var(--primary); border-color: var(--primary); transform: translateY(-2px); }

/* ===== SSS ===== */
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
}

.faq-question {
  padding: 18px 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  color: var(--primary);
  background: #fff;
  transition: var(--transition);
}
.faq-question:hover { background: var(--light); }
.faq-question i { transition: var(--transition); color: var(--secondary); }
.faq-item.open .faq-question i { transform: rotate(180deg); }

.faq-answer {
  padding: 0 22px;
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease, padding .3s ease;
  color: var(--text-light);
  font-size: 15px;
  line-height: 1.7;
}
.faq-item.open .faq-answer { max-height: 300px; padding: 0 22px 18px; }

/* ===== BLOG ===== */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 25px;
}

.blog-card {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  background: #fff;
}
.blog-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }

.blog-img { height: 200px; overflow: hidden; }
.blog-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.blog-card:hover .blog-img img { transform: scale(1.05); }

.blog-body { padding: 22px; }
.blog-date { font-size: 12px; color: var(--text-light); margin-bottom: 8px; }
.blog-body h3 { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 10px; line-height: 1.4; }
.blog-body p { font-size: 14px; color: var(--text-light); margin-bottom: 15px; }
.blog-link { color: var(--secondary); font-size: 14px; font-weight: 600; }

/* ===== İLETİŞİM ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 50px;
  align-items: start;
}

.contact-info { display: flex; flex-direction: column; gap: 20px; }

.contact-item {
  display: flex;
  gap: 15px;
  align-items: flex-start;
  padding: 20px;
  background: var(--light);
  border-radius: var(--radius);
}

.contact-icon {
  width: 45px; height: 45px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  flex-shrink: 0;
}

.contact-item h4 { font-size: 14px; font-weight: 700; color: var(--primary); margin-bottom: 4px; }
.contact-item p { font-size: 14px; color: var(--text-light); }

/* Form */
.form-group { margin-bottom: 20px; }
.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 7px;
}
.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  color: var(--text);
  background: #fff;
  transition: var(--transition);
  outline: none;
  font-family: inherit;
}
.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(15,52,96,.1);
}
.form-control::placeholder { color: #aaa; }
textarea.form-control { resize: vertical; min-height: 130px; }
select.form-control { cursor: pointer; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

/* ===== FOOTER ===== */
#footer {
  background: var(--dark);
  color: rgba(255,255,255,.7);
  padding: 70px 20px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 50px;
  max-width: 1280px;
  margin: 0 auto 50px;
}

.footer-brand .logo { margin-bottom: 18px; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,.55); }

.footer-socials {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}
.footer-social {
  width: 38px; height: 38px;
  background: rgba(255,255,255,.07);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,.6);
  transition: var(--transition);
}
.footer-social:hover { background: var(--secondary); color: #fff; }

.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 30px; height: 2px;
  background: var(--secondary);
}

.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  color: rgba(255,255,255,.55);
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 7px;
  transition: var(--transition);
}
.footer-links a:hover { color: var(--secondary); padding-left: 5px; }
.footer-links a i { font-size: 10px; color: var(--secondary); }

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 15px;
}
.footer-contact-item i { color: var(--secondary); margin-top: 3px; width: 16px; }
.footer-contact-item span { font-size: 14px; color: rgba(255,255,255,.55); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.07);
  padding: 20px 0;
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
}

.footer-bottom-links { display: flex; gap: 20px; }
.footer-bottom-links a { color: rgba(255,255,255,.4); transition: var(--transition); }
.footer-bottom-links a:hover { color: var(--secondary); }

/* ===== WHATSAPP ===== */
.whatsapp-float {
  position: fixed;
  bottom: 25px; right: 25px;
  width: 55px; height: 55px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  color: #fff;
  box-shadow: 0 5px 20px rgba(37,211,102,.5);
  z-index: 999;
  transition: var(--transition);
  animation: pulse-wa 2s infinite;
}
.whatsapp-float:hover { transform: scale(1.1); }

@keyframes pulse-wa {
  0%, 100% { box-shadow: 0 5px 20px rgba(37,211,102,.5); }
  50% { box-shadow: 0 5px 30px rgba(37,211,102,.8); }
}

/* ===== ALERTS ===== */
.alert {
  padding: 14px 18px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.alert-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.alert-danger { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }
.alert-warning { background: #fff3cd; color: #856404; border: 1px solid #ffeeba; }
.alert-info { background: #d1ecf1; color: #0c5460; border: 1px solid #bee5eb; }

/* ===== PAGE HERO ===== */
.page-hero {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  padding: 100px 20px 60px;
  text-align: center;
  color: #fff;
  margin-top: 75px;
}
.page-hero h1 { font-size: clamp(28px, 4vw, 44px); font-weight: 800; margin-bottom: 12px; }
.page-hero p { font-size: 16px; opacity: .8; max-width: 600px; margin: 0 auto 20px; }
.breadcrumb {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  opacity: .7;
}
.breadcrumb a:hover { opacity: 1; }
.breadcrumb i { font-size: 10px; }

/* ===== CTA SECTION ===== */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  padding: 80px 20px;
  text-align: center;
  color: #fff;
}
.cta-section h2 { font-size: clamp(26px, 4vw, 40px); font-weight: 800; margin-bottom: 15px; }
.cta-section p { font-size: 16px; opacity: .85; max-width: 550px; margin: 0 auto 30px; }
.cta-btns { display: flex; gap: 15px; justify-content: center; flex-wrap: wrap; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  nav { display: none; }
  nav.open { display: flex; flex-direction: column; align-items: flex-start; gap: 0; position: fixed; top: 75px; left: 0; right: 0; background: var(--primary); padding: 20px; z-index: 999; }
  nav.open a { width: 100%; padding: 12px 15px; }
  .dropdown-menu { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; background: rgba(255,255,255,.05); border-radius: 8px; margin: 5px 0; }
  .dropdown-menu a { color: rgba(255,255,255,.8) !important; }
  .hamburger { display: flex; }
  #hero { height: auto; padding-top: 20px; max-height: none; }
  .slide { position: relative; opacity: 1; }
  .slide:not(.active) { display: none; }
  .services-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .footer-bottom { flex-direction: column; gap: 10px; text-align: center; }
  .blog-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .header-cta .btn-outline { display: none; }
}