@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;0,9..144,600;1,9..144,400&family=Inter:wght@400;500;600;700&display=swap');

:root {
  --navy: #0d2b4a;
  --navy-2: #163a5c;
  --paper: #faf8f4;
  --paper-2: #f0ece3;
  --ink: #14181f;
  --ink-muted: #5c6270;
  --line: #22303f;
  --line-soft: rgba(20, 24, 31, 0.1);
  --copper: #b8262d;
  --copper-light: #dd5158;
  --anthracite: #23262b;
  --anthracite-light: #33373e;
  --max-width: 1200px;
  --serif: 'Fraunces', Georgia, serif;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

html { scroll-behavior: smooth; }

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 3px;
  border-radius: 2px;
}

body {
  font-family: var(--sans);
  color: var(--ink);
  line-height: 1.65;
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: 16px;
}

h1, h2, h3, .serif {
  font-family: var(--serif);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--navy);
}

/* ===== HEADER ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--paper);
  border-bottom: 1px solid var(--line-soft);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}

.logo {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--navy);
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
}
.logo span { color: var(--copper); font-weight: 400; }
.logo-img {
  height: 52px;
  width: auto;
  display: block;
}

.main-nav { display: flex; align-items: center; }

.nav-list {
  display: flex;
  gap: 2px;
  align-items: center;
  background: var(--anthracite);
  padding: 7px;
  border-radius: 999px;
  box-shadow: 0 8px 20px rgba(20, 24, 31, 0.18);
}

.nav-list a {
  display: block;
  color: rgba(255, 255, 255, 0.72);
  font-weight: 600;
  font-size: 0.86rem;
  letter-spacing: 0.02em;
  position: relative;
  padding: 11px 20px;
  border-radius: 999px;
  transition: background 0.2s ease, color 0.2s ease;
}
.nav-list a:hover { color: #fff; background: var(--anthracite-light); }
.nav-list a.active { color: #fff; background: var(--anthracite-light); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
}
.nav-toggle span { width: 22px; height: 2px; background: var(--navy); }

/* ===== HERO (home) ===== */
.hero {
  position: relative;
  background:
    linear-gradient(180deg, transparent 58%, rgba(9,28,48,0.5) 84%, rgba(9,28,48,0.7) 100%),
    linear-gradient(95deg, rgba(9,28,48,0.8) 0%, rgba(9,28,48,0.56) 32%, rgba(13,43,74,0.3) 55%, rgba(13,43,74,0.1) 75%, transparent 92%),
    url('../images/hero-bina.jpg') center 20% / cover no-repeat,
    var(--navy);
  color: #fff;
  overflow: hidden;
  padding: 150px 0 130px;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.9), transparent 85%);
  /* Salt dekoratif katman — tıklamaları asla yakalamasın */
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  right: -10%; top: 10%;
  width: 560px; height: 560px;
  background: radial-gradient(circle, rgba(168,103,47,0.22), transparent 70%);
  filter: blur(10px);
  /* Salt dekoratif katman (ışık efekti) — ::after, .hero-inner'dan SONRA
     boyandığı için üstünde kalıyor ve mobilde geniş boyutu yüzünden
     "Ücretsiz Keşif İsteyin" / "Projelerimizi İnceleyin" butonlarının
     tamamını kaplayıp dokunuşları yutuyordu. pointer-events:none ile
     bu katmanın tıklama/dokunuşları geçirmesi sağlanıyor. */
  pointer-events: none;
}
.hero-inner { position: relative; max-width: 680px; }
.hero h1 {
  font-size: 3.2rem;
  line-height: 1.12;
  margin-bottom: 24px;
  color: #fff;
}
.hero h1 em { color: var(--copper-light); font-style: italic; }
.hero p {
  font-size: 1.08rem;
  color: rgba(255,255,255,0.72);
  max-width: 520px;
  margin-bottom: 40px;
}
.hero-actions { display: flex; gap: 18px; flex-wrap: wrap; }
.hero-stats {
  position: relative;
  margin-top: 80px;
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 56px;
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 32px;
}
.hero-stats .stat-num {
  font-family: var(--serif);
  font-size: 2rem;
  color: #fff;
}
.hero-stats .stat-label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.55);
  margin-top: 4px;
}

/* ===== PAGE HEADER (subpages) ===== */
.page-header {
  background: var(--navy);
  color: #fff;
  padding: 84px 0 64px;
  position: relative;
  overflow: hidden;
}
.page-header::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0,0,0,0.85), transparent 90%);
}
.page-header h1 { color: #fff; font-size: 2.4rem; position: relative; }
.page-header p { color: rgba(255,255,255,0.65); max-width: 560px; margin-top: 14px; position: relative; }
.breadcrumb {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
  margin-bottom: 18px;
  position: relative;
}
.breadcrumb a { color: rgba(255,255,255,0.7); }
.breadcrumb a:hover { color: var(--copper-light); }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: 0.01em;
  border-radius: 2px;
  transition: all 0.2s ease;
}
.btn-primary { background: var(--copper); color: #fff; }
.btn-primary:hover { background: var(--copper-light); }
.btn-outline { border: 1px solid rgba(255,255,255,0.4); color: #fff; }
.btn-outline:hover { border-color: #fff; }
.btn-dark { border: 1px solid var(--navy); color: var(--navy); }
.btn-dark:hover { background: var(--navy); color: #fff; }
.btn-arrow::after { content: "→"; transition: transform 0.2s ease; }
.btn-arrow:hover::after { transform: translateX(3px); }

/* ===== SECTIONS ===== */
.section { padding: 110px 0; }
.section-tight { padding: 80px 0; }
.section-alt { background: var(--paper-2); }
.section-navy { background: var(--navy); color: #fff; }

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 40px;
  margin-bottom: 56px;
  flex-wrap: wrap;
}
.section-title { font-size: 2.1rem; }
.section-sub { color: var(--ink-muted); max-width: 460px; }

/* ===== NUMBERED SERVICE LIST ===== */
.service-list { border-top: 1px solid var(--line-soft); }
.service-row {
  display: grid;
  grid-template-columns: 90px 1fr 1fr;
  gap: 40px;
  align-items: start;
  padding: 40px 0;
  border-bottom: 1px solid var(--line-soft);
  transition: background 0.2s ease;
}
.service-row:hover { background: rgba(168,103,47,0.04); }
.service-num {
  font-family: var(--serif);
  font-size: 1.4rem;
  color: var(--copper);
}
.service-row h3 { font-size: 1.35rem; margin-bottom: 6px; }
.service-row p { color: var(--ink-muted); font-size: 0.96rem; }

/* ===== SERVICE CARDS (home teaser) ===== */
.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}
.service-card {
  background: var(--paper);
  padding: 40px 32px;
}
.service-card .service-num { display: block; margin-bottom: 20px; }
.service-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.service-card p { color: var(--ink-muted); font-size: 0.92rem; }

/* ===== ABOUT SPLIT ===== */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
.split-reverse .split-media { order: 2; }
.split h2 { margin-bottom: 20px; }
.split p { color: var(--ink-muted); margin-bottom: 16px; }
.split-list { margin-top: 24px; display: grid; gap: 12px; }
.split-list li {
  padding-left: 30px;
  position: relative;
  font-size: 0.95rem;
}
.split-list li::before {
  content: "";
  position: absolute; left: 0; top: 8px;
  width: 14px; height: 1px;
  background: var(--copper);
}

/* ===== MEDIA PLACEHOLDER ===== */
.media-frame {
  position: relative;
  background: var(--navy-2);
  color: rgba(255,255,255,0.5);
  aspect-ratio: 4/3;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  border-radius: 2px;
}
.media-frame::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 36px 36px;
}
.media-frame span {
  position: relative;
  display: block;
  padding: 18px 20px;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  border-top: 1px solid rgba(255,255,255,0.12);
  width: 100%;
}
.media-frame.square { aspect-ratio: 1/1; }
.media-frame.wide { aspect-ratio: 16/9; }
.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.project-card:hover .media-frame img { transform: scale(1.04); }
.project-card-empty { cursor: default; }
.project-card-empty .media-frame { color: rgba(255,255,255,0.4); }
.project-card-empty h3 { color: var(--ink-muted); }

/* Devam eden proje rozeti — sadece kart kapak fotoğrafında */
.project-card[data-category="devam-eden"]:not(.project-card-empty) .media-frame::after {
  content: "Devam Eden Proje";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: 8px 14px;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: center;
  color: #fff;
  background: rgba(10, 20, 35, 0.55);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}

/* ===== PROJECT DETAIL ===== */
.project-detail-meta {
  display: block;
  margin-bottom: 18px;
}
.project-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 40px;
}
.project-gallery-item {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  border-radius: 2px;
  background: var(--navy-2);
  display: block;
  cursor: zoom-in;
  padding: 0;
  border: none;
}
.project-gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.project-gallery-item:hover img { transform: scale(1.05); }

/* ===== LIGHTBOX ===== */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 14, 20, 0.94);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 56px 24px;
  cursor: zoom-out;
  opacity: 0;
  animation: lightbox-fade 0.2s ease forwards;
}
@keyframes lightbox-fade { to { opacity: 1; } }
.lightbox-overlay img {
  max-width: 90vw;
  max-height: 88vh;
  object-fit: contain;
  box-shadow: 0 30px 80px rgba(0,0,0,0.5);
  border-radius: 2px;
  cursor: default;
}
.lightbox-close {
  position: absolute;
  top: 20px;
  right: 24px;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.05);
  color: #fff;
  font-size: 1.4rem;
  line-height: 1;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}
.lightbox-close:hover { background: rgba(255,255,255,0.18); }
.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  border: 1px solid rgba(255,255,255,0.3);
  background: rgba(255,255,255,0.05);
  color: #fff;
  font-size: 1.6rem;
  line-height: 1;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}
.lightbox-nav:hover { background: rgba(255,255,255,0.18); }
.lightbox-prev { left: 16px; }
.lightbox-next { right: 16px; }
@media (max-width: 640px) {
  .lightbox-nav { width: 40px; height: 40px; font-size: 1.3rem; }
  .lightbox-close { width: 38px; height: 38px; top: 12px; right: 12px; }
}

/* ===== PROJECT GRID ===== */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 300px));
  gap: 24px;
}
/* Homepage teaser: exactly 4 even columns on desktop, wraps naturally on narrow screens */
.project-grid.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.project-card { display: block; }
.project-card .media-frame { margin-bottom: 18px; }
.project-card h3 { font-size: 1.1rem; margin-bottom: 4px; }
.project-card .project-meta {
  font-size: 0.8rem;
  color: var(--ink-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===== FILTER TABS (projeler) ===== */
.filter-tabs {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.filter-tabs button {
  background: none;
  border: 1px solid var(--line-soft);
  padding: 9px 18px;
  font-size: 0.85rem;
  color: var(--ink-muted);
  border-radius: 2px;
  transition: all 0.2s ease;
}
.filter-tabs button.active,
.filter-tabs button:hover {
  border-color: var(--navy);
  color: var(--navy);
  background: var(--paper-2);
}

/* ===== STATS STRIP ===== */
.stats-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 32px;
  border-top: 1px solid rgba(255,255,255,0.12);
  border-bottom: 1px solid rgba(255,255,255,0.12);
  padding: 48px 0;
}
.stats-strip .stat-num { font-family: var(--serif); font-size: 2.4rem; color: #fff; }
.stats-strip .stat-label { font-size: 0.82rem; color: rgba(255,255,255,0.55); margin-top: 6px; }

/* ===== PROCESS STEPS ===== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 40px;
}
.process-step .service-num { display: block; margin-bottom: 16px; }
.process-step h3 { font-size: 1.05rem; margin-bottom: 8px; }
.process-step p { color: var(--ink-muted); font-size: 0.92rem; }

/* ===== CTA BANNER ===== */
.cta-banner {
  background: var(--navy);
  color: #fff;
  padding: 72px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse at center, rgba(0,0,0,0.8), transparent 75%);
}
.cta-banner h2 { color: #fff; font-size: 2rem; margin-bottom: 16px; position: relative; }
.cta-banner p { color: rgba(255,255,255,0.65); max-width: 480px; margin: 0 auto 32px; position: relative; }
.cta-banner .btn { position: relative; }

/* ===== CONTACT ===== */
.contact-inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 72px;
}
.contact-list { margin-top: 28px; display: grid; gap: 22px; }
.contact-list dt {
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  margin-bottom: 4px;
}
.contact-list dd { font-size: 1.02rem; }
.contact-list dd a:hover { color: var(--copper); }

.map-frame { margin-top: 32px; }
.map-frame iframe { display: block; border-radius: 2px; filter: grayscale(15%); }

.contact-form {
  display: grid;
  gap: 18px;
  background: #fff;
  padding: 40px;
  border: 1px solid var(--line-soft);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.contact-form label {
  display: block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
  margin-bottom: 8px;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 13px 14px;
  border: 1px solid #d8d4cb;
  border-radius: 2px;
  font-family: inherit;
  font-size: 0.95rem;
  background: var(--paper);
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--copper);
}
.contact-form input[type="file"] {
  padding: 10px 14px;
  font-size: 0.86rem;
  color: var(--ink-muted);
  cursor: pointer;
}
.contact-form input[type="file"]::file-selector-button {
  margin-right: 14px;
  padding: 8px 16px;
  border: none;
  border-radius: 2px;
  background: var(--navy);
  color: #fff;
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: background 0.2s ease;
}
.contact-form input[type="file"]::file-selector-button:hover { background: var(--navy-2); }
.form-hint {
  margin-top: 6px;
  font-size: 0.78rem;
  color: var(--ink-muted);
}
.contact-form button { justify-self: start; margin-top: 6px; }

/* ===== FOOTER ===== */
.site-footer {
  background: var(--paper-2);
  color: var(--ink-muted);
  padding: 72px 0 28px;
  border-top: 1px solid var(--line-soft);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--line-soft);
}
.footer-grid .logo { display: block; margin-bottom: 16px; }
.footer-grid p { font-size: 0.9rem; line-height: 1.7; max-width: 280px; }
.footer-col h4 {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--navy);
  margin-bottom: 18px;
  font-weight: 600;
}
.footer-col ul { display: grid; gap: 10px; }
.footer-col a { font-size: 0.9rem; transition: color 0.2s ease; }
.footer-col a:hover { color: var(--copper); }

.social-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.social-link svg { flex-shrink: 0; }
.contact-list .social-link { font-size: 1.02rem; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 24px;
  font-size: 0.82rem;
}
.footer-bottom a:hover { color: var(--copper); }

/* ===== TOAST (form gönderim bildirimi) ===== */
.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 999;
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: #1f8a4c;
  color: #fff;
  padding: 18px 22px;
  border-radius: 12px;
  box-shadow: 0 16px 36px rgba(20, 24, 31, 0.28);
  max-width: 330px;
  transform: translateY(16px);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.35s ease, opacity 0.35s ease;
}
.toast.show { transform: translateY(0); opacity: 1; pointer-events: auto; }
.toast.toast-error { background: var(--copper); }
.toast-icon {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.22);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
  font-weight: 700;
}
.toast-title { display: block; font-size: 0.98rem; margin-bottom: 3px; }
.toast-text { margin: 0; font-size: 0.86rem; color: rgba(255, 255, 255, 0.9); line-height: 1.5; }
.toast-text a { color: #fff; text-decoration: underline; }
.toast-brand { font-weight: 600; }

@media (max-width: 480px) {
  .toast {
    left: 16px;
    right: 16px;
    bottom: 16px;
    max-width: none;
  }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 960px) {
  .split, .contact-inner { grid-template-columns: 1fr; gap: 40px; }
  .split-reverse .split-media { order: 0; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .service-row { grid-template-columns: 60px 1fr; }
  .service-row .service-num { grid-row: 1; }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .nav-list {
    position: absolute;
    top: 78px; left: 0; right: 0;
    background: var(--paper);
    border-radius: 0;
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 32px;
    gap: 4px;
    display: none;
    border-bottom: 1px solid var(--line-soft);
    box-shadow: 0 12px 24px rgba(0,0,0,0.06);
  }
  .nav-list.open { display: flex; }
  .nav-list a {
    width: 100%;
    color: var(--ink-muted);
    padding: 12px 14px;
    border-radius: 8px;
  }
  .nav-list a:hover,
  .nav-list a.active {
    color: var(--navy);
    background: var(--paper-2);
  }
  .hero h1, .page-header h1 { font-size: 2.1rem; }
  .hero { padding: 110px 0 90px; }
  .hero-stats { grid-template-columns: 1fr 1fr; gap: 28px; }
  .section { padding: 72px 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .section-head { flex-direction: column; align-items: flex-start; }
}

/* ===== WHATSAPP FLOATING BUTTON ===== */
.whatsapp-float {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25D366;
  box-shadow: 0 6px 18px rgba(0,0,0,0.25);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  /* Tıklanabilir alanı görünen yeşil daireyle sınırla — köşedeki
     görünmez kare alanın altındaki proje kartlarının tıklamasını
     "yutmasını" engeller (mobilde kaydırırken kartların üstünden
     geçebiliyor). */
  clip-path: circle(50%);
}
.whatsapp-float:hover {
  transform: scale(1.07);
  box-shadow: 0 8px 22px rgba(0,0,0,0.3);
}
.whatsapp-float svg { width: 30px; height: 30px; display: block; }
@media (max-width: 640px) {
  .whatsapp-float {
    right: 16px;
    bottom: 16px;
    width: 52px;
    height: 52px;
  }
  .whatsapp-float svg { width: 27px; height: 27px; }
}