@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700;800&family=Open+Sans:wght@400;600&display=swap');

:root {
  --navy-deep:  #0d1b2e;
  --navy-mid:   #1a3154;
  --navy-light: #2a4a7f;
  --navy-pale:  #e8edf5;
  --silver:     #8fa3bf;
  --silver-light: #c8d4e4;
  --accent:     #4a7fc1;
  --white:      #fff;
  --bg-light:   #f4f7fb;
  --text-dark:  #0d1b2e;
  --text-mid:   #3a4a5c;
  --text-light: #6a7f94;
  --border:     #d8e2ef;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Open Sans', sans-serif; background: var(--white); color: var(--text-dark); font-size: 14px; }

/* ── NAV ── */
nav {
  background: var(--navy-deep);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  height: 70px;
  box-shadow: 0 2px 16px rgba(0,0,0,0.25);
  position: sticky;
  top: 0;
  z-index: 999;
}
.nav-logo {
  height: 54px;
  width: auto;
  display: block;
}
.logo-area a { display: block; line-height: 0; }
.footer-logo {
  height: 50px;
  width: auto;
  margin-bottom: 14px;
  display: block;
}
.nav-links { display: flex; gap: 4px; align-items: center; }
.nav-links a {
  color: rgba(255,255,255,0.78);
  text-decoration: none;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
  padding: 8px 14px;
  border-radius: 5px;
  font-family: 'Montserrat', sans-serif;
  text-transform: uppercase;
  transition: all 0.18s;
}
.nav-links a:hover,
.nav-links a.active { background: var(--navy-light); color: var(--white); }
.nav-links a.nav-cta { background: var(--accent); color: var(--white); }
.nav-links a.nav-cta:hover { background: #3a6ab0; }

/* ── HERO ── */
.hero {
  background: linear-gradient(135deg, var(--navy-deep) 0%, #162845 50%, var(--navy-mid) 100%);
  min-height: 420px;
  display: flex;
  align-items: center;
  padding: 70px 40px;
  position: relative;
  overflow: hidden;
}
.hero-deco {
  position: absolute; right: -40px; top: 50%; transform: translateY(-50%);
  width: 360px; height: 360px; border-radius: 50%;
  border: 44px solid rgba(74,127,193,0.07); pointer-events: none;
}
.hero-deco2 {
  position: absolute; right: 130px; bottom: -80px;
  width: 200px; height: 200px; border-radius: 50%;
  border: 24px solid rgba(255,255,255,0.03); pointer-events: none;
}
.hero-inner { max-width: 600px; position: relative; z-index: 1; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(74,127,193,0.18);
  border: 1px solid rgba(74,127,193,0.4);
  color: #8ab4d8;
  font-size: 10px; font-weight: 700; letter-spacing: 2px;
  text-transform: uppercase; padding: 5px 14px; border-radius: 20px;
  margin-bottom: 24px; font-family: 'Montserrat', sans-serif;
}
.badge-dot {
  width: 6px; height: 6px; background: #4a7fc1;
  border-radius: 50%; animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,100% { opacity:1; transform:scale(1); }
  50%      { opacity:.5; transform:scale(0.7); }
}
.hero h1 {
  font-family: 'Montserrat', sans-serif;
  font-size: 34px; font-weight: 800;
  color: var(--white); line-height: 1.25; margin-bottom: 18px;
}
.hero h1 span { color: #6ea8d8; }
.hero p {
  font-size: 14px; color: rgba(255,255,255,0.72);
  line-height: 1.75; margin-bottom: 30px; max-width: 480px;
}
.btn-group { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-primary {
  display: inline-block;
  background: var(--accent); color: var(--white);
  border: none; padding: 12px 28px; border-radius: 5px;
  font-weight: 700; font-size: 12px; cursor: pointer;
  letter-spacing: 0.5px; font-family: 'Montserrat', sans-serif;
  text-transform: uppercase; text-decoration: none;
  transition: background 0.2s;
}
.btn-primary:hover { background: #3a6ab0; }
.btn-outline {
  display: inline-block;
  background: transparent; color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.35);
  padding: 12px 28px; border-radius: 5px;
  font-weight: 600; font-size: 12px; cursor: pointer;
  letter-spacing: 0.5px; font-family: 'Montserrat', sans-serif;
  text-transform: uppercase; text-decoration: none;
  transition: all 0.2s;
}
.btn-outline:hover { border-color: white; background: rgba(255,255,255,0.07); }

/* ── STATS ── */
.stats-bar {
  background: var(--white); border-bottom: 1px solid var(--border);
  display: flex; justify-content: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
.stat-item {
  padding: 22px 48px; text-align: center;
  border-right: 1px solid var(--border); flex: 1; max-width: 220px;
}
.stat-item:last-child { border-right: none; }
.stat-num {
  font-family: 'Montserrat', sans-serif;
  font-size: 26px; font-weight: 800; color: var(--navy-light); line-height: 1; margin-bottom: 4px;
}
.stat-label { font-size: 11px; color: var(--text-light); }

/* ── SECTIONS ── */
.section-pad { padding: 64px 40px; }
.section-label {
  font-size: 10px; font-weight: 700; letter-spacing: 3px;
  color: var(--accent); text-transform: uppercase; margin-bottom: 8px;
  font-family: 'Montserrat', sans-serif;
}
.section-title {
  font-family: 'Montserrat', sans-serif;
  font-size: 24px; font-weight: 800; color: var(--text-dark); margin-bottom: 10px; line-height: 1.3;
}
.section-desc { font-size: 13px; color: var(--text-mid); line-height: 1.75; max-width: 520px; margin-bottom: 36px; }

/* ── HİZMETLER ── */
.services-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.service-card {
  border: 1px solid var(--border); border-radius: 10px;
  padding: 28px 24px; background: var(--white);
  transition: all 0.22s; cursor: pointer; position: relative; overflow: hidden;
}
.service-card::after {
  content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--navy-light), var(--accent));
  transform: scaleX(0); transition: transform 0.3s; transform-origin: left;
}
.service-card:hover { box-shadow: 0 8px 28px rgba(26,49,84,0.12); transform: translateY(-3px); }
.service-card:hover::after { transform: scaleX(1); }
.service-icon {
  width: 44px; height: 44px; background: var(--navy-pale); border-radius: 10px;
  display: flex; align-items: center; justify-content: center; margin-bottom: 14px; font-size: 20px;
}
.service-title { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 700; color: var(--text-dark); margin-bottom: 8px; }
.service-desc { font-size: 12px; color: var(--text-light); line-height: 1.65; }

/* ── PROJELER ── */
.projects-bg { background: var(--bg-light); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.projects-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.project-card {
  background: var(--white); border: 1px solid var(--border); border-radius: 10px;
  padding: 22px 24px; display: flex; align-items: center; gap: 18px;
  transition: all 0.2s;
}
.project-card:hover { box-shadow: 0 4px 18px rgba(26,49,84,0.1); border-color: var(--accent); }
.project-num {
  min-width: 56px; height: 56px; background: var(--navy-deep); border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 11px;
  color: var(--silver-light); text-align: center; line-height: 1.3; flex-direction: column;
  flex-shrink: 0;
}
.project-name { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 700; color: var(--text-dark); margin-bottom: 4px; }
.project-detail { font-size: 12px; color: var(--text-light); }
.project-badge {
  display: inline-block; margin-top: 6px;
  background: var(--navy-pale); color: var(--navy-light);
  font-size: 10px; font-weight: 700; padding: 2px 10px; border-radius: 20px;
  font-family: 'Montserrat', sans-serif;
}

/* ── SÜREÇ ── */
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.step-item { display: flex; gap: 16px; align-items: flex-start; }
.step-num {
  width: 36px; height: 36px; background: var(--navy-mid); color: white; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Montserrat', sans-serif; font-weight: 800; font-size: 14px; flex-shrink: 0; margin-top: 2px;
}
.step-title { font-family: 'Montserrat', sans-serif; font-size: 13px; font-weight: 700; color: var(--text-dark); margin-bottom: 6px; }
.step-desc { font-size: 12px; color: var(--text-mid); line-height: 1.65; }

/* ── CTA ── */
.cta-banner {
  background: linear-gradient(135deg, var(--navy-deep) 0%, var(--navy-mid) 100%);
  margin: 0 40px 64px; border-radius: 12px; padding: 44px 48px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  border: 1px solid rgba(74,127,193,0.2);
}
.cta-title { font-family: 'Montserrat', sans-serif; font-size: 20px; font-weight: 800; color: var(--white); margin-bottom: 8px; }
.cta-desc { font-size: 13px; color: rgba(255,255,255,0.7); line-height: 1.6; }
.cta-actions { display: flex; flex-direction: column; gap: 8px; align-items: flex-end; flex-shrink: 0; }
.cta-email { font-size: 11px; }
.cta-email a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
}
.cta-email a:hover {
  color: #ffffff;
  text-decoration: underline;
}

/* ── FOOTER ── */
footer { background: var(--navy-deep); color: rgba(255,255,255,0.65); padding: 48px 40px 24px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 36px; }
.footer-desc { font-size: 12px; line-height: 1.75; max-width: 260px; color: rgba(255,255,255,0.55); }
.footer-col-title {
  font-family: 'Montserrat', sans-serif; font-size: 10px; font-weight: 700;
  color: var(--silver); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 14px;
}
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 9px; }
.footer-links a { color: rgba(255,255,255,0.55); text-decoration: none; font-size: 12px; transition: color 0.2s; }
.footer-links a:hover { color: white; }
.footer-contact-item { display: flex; gap: 8px; margin-bottom: 10px; font-size: 12px; line-height: 1.6; color: rgba(255,255,255,0.6); }
.footer-contact-item.mt { margin-top: 8px; }
.footer-contact-item a {
  color: rgba(255,255,255,0.85);
  text-decoration: none;
}
.footer-contact-item a:hover {
  color: #ffffff;
  text-decoration: underline;
}
.footer-phone { font-family: 'Montserrat', sans-serif; font-size: 14px; font-weight: 700; color: rgba(255,255,255,0.85); margin-bottom: 2px; }
.footer-social { display: flex; gap: 10px; margin-top: 16px; }
.social-btn {
  display: flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,0.08); border-radius: 6px;
  padding: 7px 13px; color: rgba(255,255,255,0.7); font-size: 11px; text-decoration: none;
  font-family: 'Montserrat', sans-serif; font-weight: 600; transition: all 0.2s;
}
.social-btn:hover { background: rgba(74,127,193,0.3); color: white; }
.social-btn.social-instagram:hover { background: rgba(225,48,108,0.25); color: white; }
.social-btn.social-facebook:hover  { background: rgba(24,119,242,0.25); color: white; }
.social-btn.social-sahibinden:hover { background: rgba(255,179,0,0.2); color: white; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08); padding-top: 20px;
  display: flex; justify-content: space-between; align-items: center;
}
.footer-copy { font-size: 11px; color: rgba(255,255,255,0.35); }

/* ── KURUMSAL SAYFASI ── */
.page-hero {
  background: linear-gradient(135deg, var(--navy-deep) 0%, var(--navy-mid) 100%);
  padding: 64px 40px 48px;
  text-align: center;
}
.page-hero h1 {
  font-family: 'Montserrat', sans-serif; font-size: 30px; font-weight: 800;
  color: var(--white); margin-bottom: 12px;
}
.page-hero p { font-size: 14px; color: rgba(255,255,255,0.7); max-width: 540px; margin: 0 auto; line-height: 1.7; }
.content-section { padding: 64px 40px; max-width: 900px; margin: 0 auto; }
.content-section h2 {
  font-family: 'Montserrat', sans-serif; font-size: 20px; font-weight: 800;
  color: var(--text-dark); margin-bottom: 16px;
}
.content-section p { font-size: 14px; color: var(--text-mid); line-height: 1.8; margin-bottom: 16px; }

/* ── İLETİŞİM SAYFASI ── */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; padding: 64px 40px; }
.contact-info h2 { font-family: 'Montserrat', sans-serif; font-size: 20px; font-weight: 800; color: var(--text-dark); margin-bottom: 24px; }
.contact-item { display: flex; gap: 14px; margin-bottom: 20px; }
.contact-icon { font-size: 22px; flex-shrink: 0; margin-top: 2px; }
.contact-label { font-family: 'Montserrat', sans-serif; font-size: 11px; font-weight: 700; color: var(--accent); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 4px; }
.contact-value { font-size: 14px; color: var(--text-dark); font-weight: 600; }
.contact-sub { font-size: 12px; color: var(--text-light); margin-top: 2px; }
.contact-form { background: var(--bg-light); border-radius: 12px; padding: 36px; border: 1px solid var(--border); }
.contact-form h2 { font-family: 'Montserrat', sans-serif; font-size: 18px; font-weight: 800; color: var(--text-dark); margin-bottom: 24px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 11px; font-weight: 700; font-family: 'Montserrat', sans-serif; color: var(--text-mid); letter-spacing: 0.5px; text-transform: uppercase; margin-bottom: 6px; }
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%; padding: 10px 14px; border: 1px solid var(--border); border-radius: 6px;
  font-size: 13px; font-family: 'Open Sans', sans-serif; color: var(--text-dark);
  background: var(--white); transition: border-color 0.2s; outline: none;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(74,127,193,0.1); }
.form-group textarea { height: 120px; resize: vertical; }

/* ── ANİMASYONLAR ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}
.service-card { animation: fadeUp 0.5s ease both; }
.services-grid .service-card:nth-child(1) { animation-delay: 0.05s; }
.services-grid .service-card:nth-child(2) { animation-delay: 0.12s; }
.services-grid .service-card:nth-child(3) { animation-delay: 0.19s; }
.services-grid .service-card:nth-child(4) { animation-delay: 0.26s; }
.services-grid .service-card:nth-child(5) { animation-delay: 0.33s; }
.services-grid .service-card:nth-child(6) { animation-delay: 0.40s; }
.project-card { animation: fadeUp 0.5s ease both; }
.projects-grid .project-card:nth-child(1) { animation-delay: 0.05s; }
.projects-grid .project-card:nth-child(2) { animation-delay: 0.12s; }
.projects-grid .project-card:nth-child(3) { animation-delay: 0.19s; }
.projects-grid .project-card:nth-child(4) { animation-delay: 0.26s; }
.stat-item { animation: fadeUp 0.5s ease both; }
.stats-bar .stat-item:nth-child(1) { animation-delay: 0.05s; }
.stats-bar .stat-item:nth-child(2) { animation-delay: 0.12s; }
.stats-bar .stat-item:nth-child(3) { animation-delay: 0.19s; }
.stats-bar .stat-item:nth-child(4) { animation-delay: 0.26s; }
.step-item { animation: fadeUp 0.5s ease both; }
.steps-grid .step-item:nth-child(1) { animation-delay: 0.05s; }
.steps-grid .step-item:nth-child(2) { animation-delay: 0.15s; }
.steps-grid .step-item:nth-child(3) { animation-delay: 0.25s; }
.contact-info { animation: fadeUp 0.5s ease 0.05s both; }
.contact-form { animation: fadeUp 0.5s ease 0.15s both; }
.content-section { animation: fadeUp 0.5s ease 0.05s both; }

/* ── HAMBURGER MENÜ ── */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 6px;
  background: none;
  border: none;
  z-index: 1001;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: rgba(255,255,255,0.85);
  border-radius: 2px;
  transition: all 0.28s ease;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── FORM VALIDATION STİLLERİ ── */
.form-group input.error,
.form-group textarea.error,
.form-group select.error {
  border-color: #e24b4a;
  box-shadow: 0 0 0 3px rgba(226,75,74,0.1);
}
.form-group input.success,
.form-group textarea.success,
.form-group select.success {
  border-color: #3a9e6a;
  box-shadow: 0 0 0 3px rgba(58,158,106,0.1);
}
.field-error {
  display: block;
  font-size: 11px;
  color: #e24b4a;
  margin-top: 4px;
  font-family: 'Montserrat', sans-serif;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  nav { padding: 0 20px; }
  .nav-logo { height: 42px; }
  .logo-area {
    position: relative;
    z-index: 1000;
  }
  .logo-area a {
    display: block;
    line-height: 0;
    pointer-events: auto;
  }
  .nav-cta {
    pointer-events: auto;
  }
  .hamburger { display: flex; }

  .nav-links {
    position: fixed;
    top: 70px;
    left: 0; right: 0;
    background: var(--navy-deep);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 20px 24px;
    gap: 4px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.3);
    transform: translateY(-110%);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    z-index: 998;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
  }
  .nav-links a {
    padding: 11px 16px;
    border-radius: 6px;
    font-size: 13px;
  }
  .nav-links a.nav-cta { margin-top: 8px; text-align: center; }

  .hero { padding: 48px 20px; }
  .hero h1 { font-size: 24px; }
  .services-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .steps-grid { grid-template-columns: 1fr; }
  .stats-bar { flex-wrap: wrap; }
  .stat-item { max-width: 50%; border-right: none; border-bottom: 1px solid var(--border); }
  .cta-banner { flex-direction: column; margin: 0 20px 40px; padding: 28px; text-align: center; }
  .cta-actions { align-items: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .section-pad { padding: 40px 20px; }
  .contact-grid { grid-template-columns: 1fr; padding: 40px 20px; }
  .form-row { grid-template-columns: 1fr; }
}