/* =========================================
   AEK İnşaat Taahhüt — Styles
   Aesthetic: Refined Industrial / Luxury Minimal
   ========================================= */

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

:root {
  --gold: #c8a96e;
  --gold-light: #e0c99a;
  --gold-dark: #9a7d4a;
  --ink: #0f0f0f;
  --ink-mid: #1a1a1a;
  --ink-soft: #2a2a2a;
  --stone: #3a3836;
  --muted: #888580;
  --light-muted: #b5b2ad;
  --bg: #faf9f7;
  --bg-warm: #f4f2ee;
  --white: #ffffff;
  --section-pad: 6rem 0;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'DM Sans', sans-serif;
  font-weight: 300;
  color: var(--ink);
  background: var(--bg);
  overflow-x: hidden;
  line-height: 1.75;
}

h1, h2, h3 {
  font-family: 'Playfair Display', serif;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ---- HEADER ---- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 1.25rem 0;
  transition: var(--transition);
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background: rgba(15, 15, 15, 0.96);
  backdrop-filter: blur(12px);
  border-color: rgba(200, 169, 110, 0.2);
  padding: 0.85rem 0;
}

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

.logo {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
}

.logo-mark {
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.1em;
}

.logo-sub {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--light-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.main-nav {
  display: flex;
  gap: 2.5rem;
}

.main-nav a {
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  transition: color var(--transition);
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0; right: 0;
  height: 1px;
  background: var(--gold);
  transform: scaleX(0);
  transition: transform var(--transition);
  transform-origin: left;
}

.main-nav a:hover { color: var(--gold); }
.main-nav a:hover::after { transform: scaleX(1); }

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.burger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--gold);
  transition: var(--transition);
}

/* ---- BUTTONS ---- */
.btn {
  display: inline-block;
  padding: 0.85rem 2rem;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary {
  background: var(--gold);
  color: var(--ink);
}

.btn-primary:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1px solid rgba(200,169,110,0.5);
}

.btn-outline:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.btn-full { width: 100%; text-align: center; }

/* ---- HERO ---- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background: var(--ink);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 60px,
      rgba(200,169,110,0.03) 60px,
      rgba(200,169,110,0.03) 61px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 60px,
      rgba(200,169,110,0.03) 60px,
      rgba(200,169,110,0.03) 61px
    );
}

.hero-content {
  position: relative;
  z-index: 2;
  padding-top: 8rem;
  padding-bottom: 3rem;
}

.hero-eyebrow {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.2s forwards;
}

.hero-title {
  font-size: clamp(3rem, 7vw, 6rem);
  font-weight: 900;
  color: var(--white);
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.4s forwards;
}

.hero-title em {
  font-style: italic;
  color: var(--gold);
}

.hero-desc {
  max-width: 560px;
  font-size: 1.05rem;
  color: rgba(255,255,255,0.65);
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.6s forwards;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s 0.8s forwards;
}

.hero-stats {
  position: relative;
  z-index: 2;
  border-top: 1px solid rgba(200,169,110,0.15);
  background: rgba(255,255,255,0.03);
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.stat {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  border-right: 1px solid rgba(200,169,110,0.1);
}

.stat:last-child { border-right: none; }

.stat-num {
  font-family: 'Playfair Display', serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 0.4rem;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ---- SECTION COMMON ---- */
.section { padding: var(--section-pad); }

.section-tag {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 1.5rem;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header .section-title { margin-bottom: 0; }

/* ---- ABOUT ---- */
.about-section { background: var(--white); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 6rem;
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-img-placeholder {
  width: 100%;
  aspect-ratio: 4/5;
  border-radius: 2px;
  overflow: hidden;
}

.about-img-placeholder svg { width: 100%; height: 100%; }

.about-badge {
  position: absolute;
  bottom: -1.5rem;
  right: -1.5rem;
  background: var(--gold);
  color: var(--ink);
  padding: 1.5rem;
  text-align: center;
  z-index: 2;
}

.badge-num {
  display: block;
  font-family: 'Playfair Display', serif;
  font-size: 2rem;
  font-weight: 900;
  line-height: 1;
}

.badge-text {
  display: block;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-top: 0.25rem;
}

.about-text p {
  color: var(--stone);
  margin-bottom: 1.25rem;
}

.about-list {
  list-style: none;
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.about-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--ink);
}

.list-icon {
  color: var(--gold);
  font-size: 0.5rem;
}

/* ---- SERVICES ---- */
.services-section { background: var(--bg); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5px;
  background: rgba(0,0,0,0.08);
  border: 1.5px solid rgba(0,0,0,0.08);
}

.service-card {
  background: var(--bg);
  padding: 2.5rem 2rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 2px;
  background: var(--gold);
  transform: scaleX(0);
  transition: transform var(--transition);
  transform-origin: left;
}

.service-card:hover { background: var(--white); }
.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  margin-bottom: 1.5rem;
  opacity: 0.8;
}

.service-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--ink);
}

.service-card p {
  font-size: 0.875rem;
  color: var(--stone);
  line-height: 1.7;
}

/* ---- PROJECTS ---- */
.projects-section { background: var(--white); }

.project-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid rgba(0,0,0,0.1);
}

.tab-btn {
  background: none;
  border: none;
  padding: 0.85rem 1.75rem;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: var(--transition);
}

.tab-btn.active {
  color: var(--ink);
  border-bottom-color: var(--gold);
}

.tab-btn:hover { color: var(--ink); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.projects-grid.hidden { display: none; }

.project-card {
  border: 1px solid rgba(0,0,0,0.07);
  transition: var(--transition);
  overflow: hidden;
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.08);
}

.project-img {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}

.project-img-placeholder {
  width: 100%; height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.project-img-placeholder span {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
}

.project-status {
  position: absolute;
  top: 1rem; right: 1rem;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.3rem 0.75rem;
}

.project-status.done {
  background: var(--gold);
  color: var(--ink);
}

.project-status.ongoing {
  background: rgba(255,255,255,0.15);
  color: var(--white);
  border: 1px solid rgba(255,255,255,0.3);
}

.project-info {
  padding: 1.5rem;
}

.project-info h3 {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.project-meta {
  font-size: 0.75rem;
  color: var(--gold-dark);
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
}

.project-info p {
  font-size: 0.875rem;
  color: var(--stone);
}

/* ---- PHOTO GRID ---- */
.photos-section { margin-top: 2rem; }

.photos-note {
  color: var(--muted);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: auto auto;
  gap: 0.5rem;
}

.photo-item {
  aspect-ratio: 1;
  overflow: hidden;
}

.photo-item.photo-large {
  grid-column: span 2;
  grid-row: span 2;
  aspect-ratio: auto;
}

.photo-item.photo-wide {
  grid-column: span 2;
}

.photo-placeholder {
  width: 100%; height: 100%;
  min-height: 140px;
  background: var(--bg-warm);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px dashed rgba(200,169,110,0.3);
  transition: var(--transition);
}

.photo-placeholder:hover { background: var(--white); }

.photo-placeholder span {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--light-muted);
}

.photos-replace-note {
  margin-top: 0.75rem;
  font-size: 0.75rem;
  color: var(--light-muted);
  font-style: italic;
}

/* ---- CONTACT ---- */
.contact-section {
  background: var(--ink);
  color: var(--white);
}

.contact-section .section-title { color: var(--white); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 6rem;
  align-items: start;
}

.contact-info p {
  color: rgba(255,255,255,0.6);
  margin-bottom: 2rem;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact-icon {
  width: 40px;
  height: 40px;
  border: 1px solid rgba(200,169,110,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-item strong {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.2rem;
}

.contact-item span {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
}

.company-info h3 {
  font-family: 'DM Sans', sans-serif;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid rgba(200,169,110,0.2);
}

.company-table {
  width: 100%;
  border-collapse: collapse;
}

.company-table td {
  padding: 0.6rem 0;
  font-size: 0.875rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  vertical-align: top;
}

.company-table td:first-child {
  color: rgba(255,255,255,0.45);
  width: 40%;
  font-size: 0.8rem;
}

.company-table td:last-child {
  color: rgba(255,255,255,0.8);
}

/* ---- FORM ---- */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}

.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(200,169,110,0.2);
  color: var(--white);
  padding: 0.85rem 1rem;
  font-family: 'DM Sans', sans-serif;
  font-size: 0.9rem;
  font-weight: 300;
  outline: none;
  transition: border-color var(--transition);
  border-radius: 0;
  appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--gold);
  background: rgba(255,255,255,0.07);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255,255,255,0.25);
}

.form-group select option { background: var(--ink-mid); }

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

.form-note {
  font-size: 0.85rem;
  color: var(--gold-light);
  margin-top: 0.25rem;
  min-height: 1.2rem;
}

/* ---- FOOTER ---- */
.site-footer {
  background: var(--ink-mid);
  border-top: 1px solid rgba(200,169,110,0.15);
  padding: 2rem 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-brand {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
}

.footer-tagline {
  font-size: 0.75rem;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.footer-nav {
  display: flex;
  gap: 2rem;
}

.footer-nav a {
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  transition: color var(--transition);
}

.footer-nav a:hover { color: var(--gold); }

.footer-copy {
  font-size: 0.72rem;
  color: rgba(136,133,128,0.6);
}

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

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; gap: 3rem; }
  .about-visual { max-width: 400px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .stat { border-right: none; border-bottom: 1px solid rgba(200,169,110,0.1); }
  .stat:nth-child(odd) { border-right: 1px solid rgba(200,169,110,0.1); }
  .stat:last-child { border-bottom: none; }
}

@media (max-width: 768px) {
  .burger { display: flex; }

  .main-nav {
    position: fixed;
    top: 0; right: -100%;
    width: 280px; height: 100vh;
    background: var(--ink);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    transition: right 0.4s ease;
    border-left: 1px solid rgba(200,169,110,0.15);
  }

  .main-nav.open { right: 0; }

  .main-nav a {
    font-size: 1rem;
    color: var(--white);
  }

  .projects-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 3rem; }
  .services-grid { grid-template-columns: 1fr; }

  .photo-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .photo-item.photo-large { grid-column: span 2; }
  .photo-item.photo-wide { grid-column: span 2; }

  .footer-inner { flex-direction: column; text-align: center; }
  .footer-nav { flex-wrap: wrap; justify-content: center; }

  .hero-title { font-size: 2.5rem; }
  .hero-ctas { flex-direction: column; width: fit-content; }

  .about-badge { right: 0; bottom: -1rem; }
}

@media (max-width: 480px) {
  .stats-row { grid-template-columns: 1fr 1fr; }
  .container { padding: 0 1.25rem; }
}