/* =============================================
   GÜNGÖR İNŞAAT — ANA STİL DOSYASI
   Mat mavi & beyaz tema
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  --mavi-koyu:   #1b3a5c;
  --mavi-orta:   #2d5f8a;
  --mavi-acik:   #4a80aa;
  --mavi-pastel: #d6e8f5;
  --beyaz:       #ffffff;
  --gri-acik:    #f4f7fb;
  --gri-orta:    #e2eaf3;
  --gri-metin:   #6b7e91;
  --metin:       #1a2a38;
  --altin:       #c9a84c;

  --shadow-soft: 0 4px 24px rgba(27,58,92,0.10);
  --shadow-card: 0 8px 32px rgba(27,58,92,0.13);
  --radius:      12px;
  --radius-lg:   20px;
  --transition:  all 0.3s cubic-bezier(0.4,0,0.2,1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--beyaz);
  color: var(--metin);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── NAVİGASYON ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 0 40px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(27,58,92,0.08);
  transition: var(--transition);
}

nav.scrolled {
  box-shadow: var(--shadow-soft);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.nav-logo-icon {
  width: 40px; height: 40px;
  background: var(--mavi-koyu);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-logo-icon svg { width: 22px; height: 22px; fill: white; }

.nav-logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.nav-logo-text span:first-child {
  font-size: 16px;
  font-weight: 700;
  color: var(--mavi-koyu);
  letter-spacing: 0.3px;
}

.nav-logo-text span:last-child {
  font-size: 10px;
  font-weight: 500;
  color: var(--gri-metin);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--gri-metin);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 8px;
  transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.aktif {
  background: var(--mavi-pastel);
  color: var(--mavi-koyu);
}

.nav-cta {
  background: var(--mavi-koyu) !important;
  color: white !important;
  border-radius: 8px !important;
}

.nav-cta:hover {
  background: var(--mavi-orta) !important;
  color: white !important;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--mavi-koyu);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── HERO ── */
#hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('hero.png');
  background-size: cover;
  background-position: center;
  filter: brightness(0.45);
  transform: scale(1.05);
  animation: zoomOut 10s ease-out forwards;
}

@keyframes zoomOut {
  from { transform: scale(1.05); }
  to   { transform: scale(1.00); }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(27,58,92,0.6) 0%,
    rgba(27,58,92,0.2) 60%,
    transparent 100%
  );
}

.hero-content {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  padding: 120px 40px 80px;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(201,168,76,0.20);
  border: 1px solid rgba(201,168,76,0.5);
  color: #f0d080;
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeUp 0.6s 0.2s ease forwards;
}

.hero-badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--altin);
}

.hero-title {
  font-size: clamp(36px, 6vw, 68px);
  font-weight: 800;
  color: white;
  line-height: 1.1;
  margin-bottom: 20px;
  opacity: 0;
  animation: fadeUp 0.6s 0.4s ease forwards;
}

.hero-title span {
  color: #8bbdd9;
}

.hero-subtitle {
  font-size: clamp(16px, 2vw, 20px);
  color: rgba(255,255,255,0.80);
  font-weight: 300;
  max-width: 520px;
  margin-bottom: 40px;
  line-height: 1.7;
  opacity: 0;
  animation: fadeUp 0.6s 0.6s ease forwards;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.6s 0.8s ease forwards;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--mavi-koyu);
  color: white;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(27,58,92,0.35);
}

.btn-primary:hover {
  background: var(--mavi-orta);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(27,58,92,0.45);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: white;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  border: 2px solid rgba(255,255,255,0.5);
  cursor: pointer;
  transition: var(--transition);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.12);
  border-color: white;
}

.hero-stats {
  position: absolute;
  bottom: 60px;
  right: 40px;
  display: flex;
  gap: 32px;
  opacity: 0;
  animation: fadeUp 0.6s 1.0s ease forwards;
}

.stat-item {
  text-align: center;
}

.stat-num {
  font-size: 36px;
  font-weight: 800;
  color: white;
  line-height: 1;
}

.stat-num span {
  color: var(--altin);
}

.stat-label {
  font-size: 12px;
  color: rgba(255,255,255,0.65);
  font-weight: 500;
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: rgba(255,255,255,0.5);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  animation: bounce 2s infinite;
}

.scroll-indicator::after {
  content: '';
  width: 1px;
  height: 32px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* ── GENEL BÖLÜM ── */
section {
  padding: 100px 40px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  color: var(--mavi-orta);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  color: var(--mavi-koyu);
  line-height: 1.2;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 17px;
  color: var(--gri-metin);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

.divider {
  width: 52px;
  height: 3px;
  background: linear-gradient(to right, var(--mavi-koyu), var(--mavi-acik));
  border-radius: 2px;
  margin: 20px auto 0;
}

/* ── HAKKIMIZDA ── */
#hakkimizda {
  background: var(--gri-acik);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-img-wrap {
  position: relative;
}

.about-img-main {
  width: 100%;
  height: 480px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.about-img-badge {
  position: absolute;
  bottom: -24px;
  right: -24px;
  background: var(--mavi-koyu);
  color: white;
  padding: 20px 28px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  text-align: center;
}

.about-img-badge .num {
  font-size: 36px;
  font-weight: 800;
  line-height: 1;
  color: var(--altin);
}

.about-img-badge .label {
  font-size: 12px;
  opacity: 0.8;
  margin-top: 4px;
}

.about-text h2 {
  font-size: 38px;
  font-weight: 800;
  color: var(--mavi-koyu);
  line-height: 1.2;
  margin-bottom: 20px;
}

.about-text p {
  color: var(--gri-metin);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background: white;
  border-radius: var(--radius);
  border: 1px solid var(--gri-orta);
  transition: var(--transition);
}

.feature-item:hover {
  border-color: var(--mavi-acik);
  box-shadow: var(--shadow-soft);
  transform: translateY(-2px);
}

.feature-icon {
  width: 40px; height: 40px;
  background: var(--mavi-pastel);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 18px;
}

.feature-info strong {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--mavi-koyu);
  margin-bottom: 2px;
}

.feature-info span {
  font-size: 12px;
  color: var(--gri-metin);
}

/* ── HİZMETLERİMİZ ── */
#hizmetler {
  background: white;
}

.hizmet-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.hizmet-kart {
  background: var(--gri-acik);
  border: 1px solid var(--gri-orta);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.hizmet-kart::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(to right, var(--mavi-koyu), var(--mavi-acik));
  transform: scaleX(0);
  transition: var(--transition);
}

.hizmet-kart:hover {
  border-color: var(--mavi-acik);
  box-shadow: var(--shadow-card);
  transform: translateY(-6px);
  background: white;
}

.hizmet-kart:hover::before {
  transform: scaleX(1);
}

.hizmet-ikon {
  width: 56px; height: 56px;
  background: var(--mavi-pastel);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 20px;
  transition: var(--transition);
}

.hizmet-kart:hover .hizmet-ikon {
  background: var(--mavi-koyu);
}

.hizmet-kart h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--mavi-koyu);
  margin-bottom: 10px;
}

.hizmet-kart p {
  font-size: 14px;
  color: var(--gri-metin);
  line-height: 1.7;
}

/* ── PROJELER ── */
#projeler {
  background: var(--gri-acik);
}

.proje-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.proje-kart {
  background: white;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
}

.proje-kart:hover {
  box-shadow: var(--shadow-card);
  transform: translateY(-6px);
}

.proje-kart-img {
  position: relative;
  overflow: hidden;
  height: 240px;
}

.proje-kart-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.proje-kart:hover .proje-kart-img img {
  transform: scale(1.08);
}

.proje-durum {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 5px 12px;
  border-radius: 50px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.proje-durum.devam {
  background: rgba(201,168,76,0.90);
  color: white;
}

.proje-durum.tamamlandi {
  background: rgba(27,58,92,0.90);
  color: white;
}

.proje-kart-bilgi {
  padding: 24px;
}

.proje-kart-bilgi h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--mavi-koyu);
  margin-bottom: 6px;
}

.proje-kart-bilgi p {
  font-size: 13px;
  color: var(--gri-metin);
  line-height: 1.6;
  margin-bottom: 16px;
}

.proje-meta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.proje-meta span {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--mavi-orta);
  font-weight: 500;
}

/* ── İLETİŞİM ── */
#iletisim {
  background: white;
}

.iletisim-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}

.iletisim-sol h2 {
  font-size: 36px;
  font-weight: 800;
  color: var(--mavi-koyu);
  line-height: 1.2;
  margin-bottom: 16px;
}

.iletisim-sol p {
  font-size: 16px;
  color: var(--gri-metin);
  line-height: 1.7;
  margin-bottom: 36px;
}

.iletisim-karti {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: var(--gri-acik);
  border: 1px solid var(--gri-orta);
  border-radius: var(--radius);
  margin-bottom: 16px;
  transition: var(--transition);
  text-decoration: none;
  color: inherit;
}

.iletisim-karti:hover {
  border-color: var(--mavi-acik);
  background: var(--mavi-pastel);
}

.iletisim-karti-ikon {
  width: 48px; height: 48px;
  background: var(--mavi-koyu);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 20px;
}

.iletisim-karti-metin strong {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--gri-metin);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.iletisim-karti-metin span {
  font-size: 16px;
  font-weight: 600;
  color: var(--mavi-koyu);
}

/* Form */
.form-kart {
  background: var(--gri-acik);
  border: 1px solid var(--gri-orta);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.form-kart h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--mavi-koyu);
  margin-bottom: 28px;
}

.form-grup {
  margin-bottom: 20px;
}

.form-grup label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--mavi-koyu);
  margin-bottom: 8px;
}

.form-grup input,
.form-grup textarea,
.form-grup select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--gri-orta);
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  color: var(--metin);
  background: white;
  transition: var(--transition);
  outline: none;
}

.form-grup input:focus,
.form-grup textarea:focus,
.form-grup select:focus {
  border-color: var(--mavi-orta);
  box-shadow: 0 0 0 3px rgba(45,95,138,0.10);
}

.form-grup textarea {
  resize: vertical;
  min-height: 120px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-submit {
  width: 100%;
  padding: 14px;
  background: var(--mavi-koyu);
  color: white;
  border: none;
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 8px;
}

.form-submit:hover {
  background: var(--mavi-orta);
  transform: translateY(-2px);
}

.form-basari {
  display: none;
  text-align: center;
  padding: 20px;
  background: rgba(27,58,92,0.07);
  border-radius: var(--radius);
  color: var(--mavi-koyu);
  font-weight: 600;
  margin-top: 16px;
}

/* ── FOOTER ── */
footer {
  background: var(--mavi-koyu);
  color: rgba(255,255,255,0.70);
  padding: 48px 40px 28px;
}

.footer-ic {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-ust {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 32px;
}

.footer-logo span:first-child {
  display: block;
  font-size: 20px;
  font-weight: 800;
  color: white;
  margin-bottom: 4px;
}

.footer-logo span:last-child {
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-linkler {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-linkler a {
  color: rgba(255,255,255,0.65);
  text-decoration: none;
  font-size: 14px;
  transition: var(--transition);
}

.footer-linkler a:hover {
  color: white;
}

.footer-alt {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  flex-wrap: wrap;
  gap: 8px;
}

/* ── ANİMASYONLAR ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.gorunen {
  opacity: 1;
  transform: translateY(0);
}

/* ── MOBİL ── */
@media (max-width: 900px) {
  nav { padding: 0 24px; }
  .nav-links { display: none; }
  .hamburger { display: flex; }

  section { padding: 72px 24px; }

  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-img-badge { bottom: -16px; right: 16px; }

  .hizmet-grid,
  .proje-grid { grid-template-columns: 1fr; }

  .iletisim-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }

  .hero-stats {
    position: relative;
    bottom: auto; right: auto;
    margin-top: 40px;
    justify-content: flex-start;
  }

  .hero-content { padding: 120px 24px 60px; }
}