/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* === TEMA 1: Lacivert (varsayılan) === */
:root, [data-theme="navy"] {
  --gold:    #D4A017;
  --gold-dk: #B8860B;
  --dark:    #1A1A2E;
  --dark2:   #16213E;
  --light:   #F5F5F0;
  --muted:   #6B7280;
  --text:    #333333;
  --white:   #FFFFFF;
  --radius:  8px;
  --shadow:  0 4px 24px rgba(0,0,0,.10);
  --trans:   .3s ease;
}

/* === TEMA 2: Antrasit & Bakır === */
[data-theme="red"] {
  --gold:    #D4622A;
  --gold-dk: #B8521F;
  --dark:    #1C2128;
  --dark2:   #131920;
  --light:   #F5F5F0;
  --muted:   #6B7280;
  --text:    #333333;
  --white:   #FFFFFF;
  --radius:  8px;
  --shadow:  0 4px 24px rgba(0,0,0,.15);
  --trans:   .3s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
}

h1, h2, h3, h4 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  line-height: 1.2;
}

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

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.section-label {
  display: inline-block;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: .5rem;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  color: var(--dark);
  margin-bottom: 1rem;
}

.section-desc {
  color: var(--muted);
  max-width: 560px;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .8rem 1.8rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--trans);
}

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

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

.btn-dark {
  background: var(--dark);
  color: var(--white);
}
.btn-dark:hover { background: var(--dark2); }

/* ===== NAVBAR ===== */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1.2rem 0;
  transition: background var(--trans), box-shadow var(--trans);
}

#navbar.scrolled {
  background: var(--dark);
  box-shadow: 0 2px 16px rgba(0,0,0,.3);
  padding: .8rem 0;
}

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

.nav-logo {
  display: flex;
  align-items: center;
  gap: .75rem;
}

.nav-logo img { width: 40px; height: 40px; }

.nav-logo .brand {
  font-family: 'Montserrat', sans-serif;
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--white);
  letter-spacing: .02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.nav-links li { list-style: none; }

.nav-links a {
  color: rgba(255,255,255,.85);
  font-size: .9rem;
  font-weight: 500;
  transition: color var(--trans);
  display: block;
}
.nav-links a:hover { color: var(--gold); }

.nav-cta { margin-left: 1rem; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: .3rem;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 26px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--trans);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== HERO ===== */
#hero {
  min-height: 100vh;
  background:
    linear-gradient(135deg, rgba(26,26,46,.92) 0%, rgba(26,26,46,.7) 100%),
    repeating-linear-gradient(
      45deg,
      rgba(212,160,23,.04) 0px, rgba(212,160,23,.04) 2px,
      transparent 2px, transparent 60px
    ),
    linear-gradient(160deg, #1A1A2E 0%, #2d2d5e 50%, #1a3a2e 100%);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-shapes {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero-shapes span {
  position: absolute;
  display: block;
  border: 2px solid rgba(212,160,23,.15);
}
.hero-shapes span:nth-child(1) {
  width: 400px; height: 400px;
  border-radius: 50%;
  top: -100px; right: -100px;
}
.hero-shapes span:nth-child(2) {
  width: 200px; height: 200px;
  bottom: 10%; left: 5%;
  transform: rotate(45deg);
}
.hero-shapes span:nth-child(3) {
  width: 120px; height: 120px;
  top: 25%; right: 20%;
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 10rem 0 7rem;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 4rem;
}

.hero-text {
  flex: 1;
  max-width: 580px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: rgba(212,160,23,.15);
  border: 1px solid rgba(212,160,23,.3);
  color: var(--gold);
  padding: .4rem 1rem;
  border-radius: 50px;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 4rem);
  color: var(--white);
  margin-bottom: 1rem;
}
.hero-title .accent { color: var(--gold); }

.hero-sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,.75);
  margin-bottom: 2.5rem;
  max-width: 520px;
}

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

.hero-stats {
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  border-left: 1px solid rgba(255,255,255,.15);
  padding-left: 3rem;
  gap: 0;
}
.hero-stats > div {
  padding: 1.6rem 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.hero-stats > div:last-child {
  border-bottom: none;
}
.hero-stat-num {
  font-family: 'Montserrat', sans-serif;
  font-size: clamp(2.4rem, 3vw, 3.2rem);
  font-weight: 800;
  color: var(--gold);
  display: block;
  line-height: 1;
  margin-bottom: .45rem;
}
.hero-stat-lbl {
  font-size: .78rem;
  color: rgba(255,255,255,.55);
  text-transform: uppercase;
  letter-spacing: .1em;
}

/* ===== SECTION COMMON ===== */
.section { padding: 6rem 0; }
.section-alt { background: var(--light); }

/* ===== SERVICES ===== */
.services-header { margin-bottom: 3rem; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 1.75rem;
}

.service-card {
  position: relative;
  background: var(--white);
  border-radius: var(--radius);
  padding: 2.25rem 2rem 1.75rem;
  box-shadow: 0 2px 12px rgba(0,0,0,.07);
  border: 1px solid rgba(0,0,0,.06);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 0;
  transition: box-shadow .3s ease, transform .3s ease;
  opacity: 0;
  transform: translateY(30px);
}
.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold), #f0c040);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s ease;
}
.service-card.visible {
  opacity: 1;
  transform: none;
  transition: opacity .6s ease, transform .6s ease, box-shadow .3s ease;
}
.service-card.visible::before { transition: transform .35s ease; }
.service-card:hover { box-shadow: 0 12px 40px rgba(0,0,0,.13); transform: translateY(-4px); }
.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  width: 64px; height: 64px;
  background: linear-gradient(135deg, var(--dark2) 0%, #2a4a8a 100%);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.5rem;
  flex-shrink: 0;
  box-shadow: 0 6px 20px rgba(26,39,68,.25);
  transition: transform .3s ease, box-shadow .3s ease;
}
.service-icon i { color: #fff; font-size: 1.35rem; }
.service-card:hover .service-icon {
  transform: scale(1.08) rotate(-3deg);
  box-shadow: 0 10px 28px rgba(26,39,68,.35);
}

.service-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: .55rem;
  color: var(--dark);
  letter-spacing: -.01em;
}
.service-card p {
  font-size: .88rem;
  color: var(--muted);
  line-height: 1.65;
  flex: 1;
}


/* ===== ABOUT ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-visual {
  position: relative;
}
.about-img-wrap {
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--dark) 0%, #2d4a3e 100%);
  display: flex;
  align-items: center;
  justify-content: center;
}
.about-img-placeholder {
  text-align: center;
  color: rgba(255,255,255,.5);
}
.about-img-placeholder svg { width: 80px; height: 80px; margin-bottom: .5rem; }
.about-img-placeholder p { font-size: .85rem; }

.about-badge {
  position: absolute;
  bottom: -1.5rem; right: -1.5rem;
  background: var(--gold);
  color: var(--dark);
  padding: 1.2rem 1.5rem;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--shadow);
}
.about-badge strong { display: block; font-size: 2rem; font-family: 'Montserrat', sans-serif; }
.about-badge span   { font-size: .78rem; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; }

.about-text { }
.about-list { margin: 1.5rem 0; display: flex; flex-direction: column; gap: .75rem; }
.about-list li {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  font-size: .95rem;
  color: var(--muted);
}
.about-list li::before {
  content: '';
  flex-shrink: 0;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--gold);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M2 6l3 3 5-5' stroke='%231A1A2E' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-size: 12px;
  background-position: center;
  background-repeat: no-repeat;
  margin-top: 2px;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}
.stat-box {
  text-align: center;
  padding: 1rem;
  background: var(--light);
  border-radius: var(--radius);
}
.stat-box strong { display: block; font-size: 1.8rem; font-family: 'Montserrat', sans-serif; color: var(--gold); }
.stat-box span   { font-size: .78rem; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }

/* ===== PROJECTS ===== */
.projects-header { margin-bottom: 2rem; }

.filter-bar {
  display: flex;
  gap: .75rem;
  flex-wrap: nowrap;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
  margin-bottom: 2.5rem;
  padding-bottom: .25rem;
}
.filter-bar::-webkit-scrollbar { display: none; }
.filter-btn {
  padding: .5rem 1.3rem;
  border-radius: 50px;
  border: 2px solid #E5E7EB;
  background: var(--white);
  font-size: .85rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--muted);
  transition: var(--trans);
  flex-shrink: 0;
  white-space: nowrap;
}
.filter-btn.active,
.filter-btn:hover {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--dark);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.project-card {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: box-shadow var(--trans), transform var(--trans);
}
.project-card:hover { box-shadow: 0 12px 40px rgba(0,0,0,.18); transform: translateY(-4px); }
.project-card.hidden { display: none; }

.project-thumb {
  aspect-ratio: 16/10;
  position: relative;
  overflow: hidden;
}
.project-thumb-bg {
  width: 100%; height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  transition: transform var(--trans);
}
.project-card:hover .project-thumb-bg { transform: scale(1.05); }

.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(26,26,46,.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: var(--trans);
}
.project-card:hover .project-overlay { opacity: 1; }

.project-info { padding: 1.25rem; }
.project-cat {
  font-size: .75rem;
  font-weight: 700;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: .4rem;
}
.project-info h3 { font-size: 1rem; color: var(--dark); margin-bottom: .3rem; }
.project-info p  { font-size: .85rem; color: var(--muted); }

/* ===== WHY US ===== */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 5rem;
}

.why-card {
  text-align: center;
  padding: 2.5rem 1.5rem;
  border-radius: var(--radius);
  background: var(--white);
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(30px);
}
.why-card.visible { opacity: 1; transform: none; transition: opacity .6s ease, transform .6s ease; }

.why-icon {
  width: 64px; height: 64px;
  background: var(--dark);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.2rem;
  font-size: 1.8rem;
}
.why-card h3 { font-size: 1.1rem; margin-bottom: .5rem; color: var(--dark); }
.why-card p  { font-size: .9rem; color: var(--muted); }

/* TESTIMONIALS */
.testimonials-label { text-align: center; margin-bottom: 2rem; }
.testimonials-label h3 { font-size: 1.6rem; color: var(--dark); }

.testimonials-wrap {
  position: relative;
  overflow: hidden;
}
.testimonials-track {
  display: flex;
  transition: transform .5s ease;
}
.testimonial {
  flex: 0 0 100%;
  padding: 2.5rem;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
}
.testimonial-quote {
  font-size: 1.1rem;
  color: var(--text);
  font-style: italic;
  margin-bottom: 1.5rem;
  line-height: 1.7;
}
.testimonial-quote::before { content: '"'; }
.testimonial-quote::after  { content: '"'; }

.testimonial-author { display: flex; align-items: center; justify-content: center; gap: 1rem; }
.author-avatar {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--gold), var(--dark));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 1rem;
}
.author-name { font-weight: 700; font-size: .9rem; color: var(--dark); }
.author-role { font-size: .8rem; color: var(--muted); }

.carousel-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.5rem;
}
.carousel-btn {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 2px solid var(--gold);
  background: transparent;
  color: var(--gold);
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--trans);
}
.carousel-btn:hover { background: var(--gold); color: var(--dark); }

.carousel-dots { display: flex; gap: .4rem; }
.dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #D1D5DB;
  cursor: pointer;
  transition: var(--trans);
}
.dot.active { background: var(--gold); transform: scale(1.3); }

/* ===== CONTACT ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 4rem;
  align-items: start;
}

.contact-info h3 { font-size: 1.4rem; color: var(--dark); margin-bottom: .75rem; }
.contact-info p  { color: var(--muted); margin-bottom: 2rem; }

.contact-items { display: flex; flex-direction: column; gap: 1.25rem; }
.contact-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}
.contact-item-icon {
  width: 44px; height: 44px;
  flex-shrink: 0;
  background: rgba(212,160,23,.1);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}
.contact-item-text strong { display: block; font-size: .85rem; color: var(--dark); margin-bottom: .15rem; }
.contact-item-text span  { font-size: .9rem; color: var(--muted); }

.contact-form {
  background: var(--light);
  padding: 2.5rem;
  border-radius: 12px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: .4rem; margin-bottom: 1rem; }
.form-group label { font-size: .85rem; font-weight: 600; color: var(--dark); }

.form-group input,
.form-group textarea,
.form-group select {
  padding: .8rem 1rem;
  border: 2px solid #E5E7EB;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: .95rem;
  color: var(--text);
  background: var(--white);
  transition: border-color var(--trans);
  outline: none;
  width: 100%;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--gold);
}
.form-group textarea { resize: vertical; min-height: 130px; }

.form-group select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 2.75rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  cursor: pointer;
}
.form-group select:focus {
  border-color: var(--gold);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23D4A017' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
}

.form-group .error-msg { font-size: .78rem; color: #EF4444; display: none; }
.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea { border-color: #EF4444; }
.form-group.has-error .error-msg { display: block; }

.form-success {
  display: none;
  text-align: center;
  padding: 2rem;
  color: #16A34A;
  font-weight: 600;
}
.form-success.show { display: block; }

/* ===== FOOTER ===== */
footer {
  background: var(--dark);
  color: rgba(255,255,255,.75);
  padding: 4rem 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
}

.footer-brand .nav-logo { margin-bottom: 1rem; }
.footer-brand p { font-size: .9rem; line-height: 1.7; max-width: 240px; }

.footer-col h4 {
  font-size: .9rem;
  font-weight: 700;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: 1.2rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: .6rem; }
.footer-col ul li a {
  font-size: .88rem;
  transition: color var(--trans);
}
.footer-col ul li a:hover { color: var(--gold); }

.social-links { display: flex; gap: .75rem; margin-top: 1.5rem; }
.social-link {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  transition: var(--trans);
  text-decoration: none;
  color: rgba(255,255,255,.75);
}
.social-link:hover { background: var(--gold); border-color: var(--gold); color: var(--dark); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 1.5rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: .85rem;
  flex-wrap: wrap;
  gap: .5rem;
}
.footer-bottom a { color: var(--gold); }

/* ===== FADE-IN ANIMATION ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
}
.fade-in.visible {
  opacity: 1;
  transform: none;
  transition: opacity .7s ease, transform .7s ease;
}

/* ===== SCROLL TO TOP ===== */
#scrollTop {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px; height: 44px;
  background: var(--gold);
  color: var(--dark);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(212,160,23,.4);
  opacity: 0;
  pointer-events: none;
  transition: var(--trans);
  z-index: 999;
}
#scrollTop.show { opacity: 1; pointer-events: auto; }
#scrollTop:hover { background: var(--gold-dk); }

/* ===== WHATSAPP FAB ===== */
.whatsapp-fab {
  position: fixed;
  bottom: 5.5rem;
  right: 2rem;
  width: 44px; height: 44px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(37,211,102,.45);
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: var(--trans);
}
.whatsapp-fab.show {
  opacity: 1;
  pointer-events: auto;
}
.whatsapp-fab:hover {
  box-shadow: 0 6px 18px rgba(37,211,102,.6);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-visual { max-width: 500px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }

  /* Navbar — hamburger 1024px altında devreye girer */
  .nav-links {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--dark);
    padding: 1rem 5% 1.5rem;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transition: max-height .35s ease, opacity .25s ease, padding .35s ease;
  }
  .nav-links.open {
    max-height: 400px;
    opacity: 1;
    pointer-events: auto;
    padding: 1.25rem 5% 1.75rem;
  }
  .nav-links li {
    width: 100%;
    border-bottom: 1px solid rgba(255,255,255,.07);
  }
  .nav-links li:last-child { border-bottom: none; }
  .nav-links a {
    padding: .85rem 0;
    font-size: 1rem;
    width: 100%;
  }
  .nav-cta { display: none; }
  .hamburger { display: flex; }
  #navbar.menu-open { background: var(--dark); box-shadow: 0 2px 16px rgba(0,0,0,.3); }

  /* Hero — tablet'te stats alta geçer */
  .hero-content { flex-direction: column; align-items: flex-start; gap: 0; padding: 8rem 0 5rem; }
  .hero-text { width: 100%; }
  .hero-stats {
    flex-direction: row;
    border-left: none;
    border-top: 1px solid rgba(255,255,255,.15);
    padding-left: 0;
    padding-top: 1.25rem;
    margin-top: 2.5rem;
    width: 100%;
    justify-content: space-around;
    gap: 0;
  }
  .hero-stats > div {
    border-bottom: none;
    border-right: none;
    padding: 0;
    text-align: center;
    flex: 1;
    position: relative;
  }
  .hero-stats > div:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0; top: 10%; height: 80%;
    width: 1px;
    background: rgba(255,255,255,.12);
  }
  .hero-stat-num { font-size: clamp(2rem, 5vw, 2.8rem); }
}

@media (max-width: 768px) {
  .hero-content { padding: 6.5rem 0 3.5rem; }
  .hero-stat-num { font-size: clamp(1.8rem, 7vw, 2.4rem); }
  .hero-stat-lbl { font-size: .7rem; }

  .btn-dark { width: 100%; text-align: center; justify-content: center; }

  .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 1.5rem; }

  .why-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-bottom .container { justify-content: center; padding: 0 1.5rem; }
  .about-badge { bottom: 1rem; right: 1rem; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; text-align: center; justify-content: center; }
  .services-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
}

/* ===== DEVAM EDEN İŞLER ===== */
.section-ongoing {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark2) 100%);
  padding: 6rem 0;
  position: relative;
  overflow: hidden;
}

.section-ongoing::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 20% 50%, rgba(212,160,23,.08) 0%, transparent 60%),
              radial-gradient(ellipse at 80% 20%, rgba(22,33,62,.4) 0%, transparent 60%);
  pointer-events: none;
}

.ongoing-header {
  text-align: center;
  margin-bottom: 3.5rem;
  position: relative;
}

.ongoing-live-badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: rgba(220,38,38,.15);
  border: 1px solid rgba(220,38,38,.3);
  color: #f87171;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: .35rem .9rem;
  border-radius: 999px;
  margin-bottom: 1.2rem;
}

.pulse-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #ef4444;
  flex-shrink: 0;
  animation: pulse-red 1.6s ease-in-out infinite;
}

.pulse-dot--sm {
  width: 7px;
  height: 7px;
}

@keyframes pulse-red {
  0%, 100% { box-shadow: 0 0 0 0 rgba(239,68,68,.6); }
  50%       { box-shadow: 0 0 0 6px rgba(239,68,68,0); }
}

.ongoing-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: #fff;
  margin-bottom: .75rem;
}

.ongoing-desc {
  color: rgba(255,255,255,.55);
  max-width: 580px;
  margin: 0 auto;
  font-size: .95rem;
  line-height: 1.7;
}

.ongoing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.75rem;
  position: relative;
}

.ongoing-grid--single {
  grid-template-columns: 1fr;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.ongoing-grid--single .ongoing-card-img {
  height: 360px;
}

.ongoing-grid--single .ongoing-card-title {
  font-size: 1.35rem;
}

.ongoing-grid--single .ongoing-card-desc {
  -webkit-line-clamp: 5;
  font-size: .925rem;
}

.ongoing-grid--two {
  grid-template-columns: repeat(2, 1fr);
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
}

.ongoing-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.09);
  border-radius: 14px;
  overflow: hidden;
  transition: transform var(--trans), box-shadow var(--trans), border-color var(--trans);
}

.ongoing-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(0,0,0,.5);
  border-color: rgba(212,160,23,.35);
}

.ongoing-card-img {
  position: relative;
  height: 220px;
  overflow: hidden;
  background: rgba(255,255,255,.03);
}

.ongoing-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.ongoing-card:hover .ongoing-card-img img {
  transform: scale(1.05);
}

.ongoing-card-img-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  background: linear-gradient(135deg, rgba(212,160,23,.1), rgba(45,90,78,.15));
}

.ongoing-card-badge {
  position: absolute;
  top: .85rem;
  left: .85rem;
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background: rgba(15,25,35,.8);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(220,38,38,.35);
  color: #f87171;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .28rem .7rem;
  border-radius: 999px;
}

.ongoing-card-body {
  padding: 1.4rem 1.5rem 1.6rem;
}

.ongoing-card-cat {
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: .4rem;
}

.ongoing-card-title {
  font-size: 1.1rem;
  color: #fff;
  margin-bottom: .6rem;
  line-height: 1.35;
}

.ongoing-card-desc {
  font-size: .875rem;
  color: rgba(255,255,255,.5);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

@media (max-width: 768px) {
  .section-ongoing { padding: 4rem 0; }
  .ongoing-grid { grid-template-columns: 1fr; }
}