/* ==========================================================================
   AYYA MİMARLIK — Ana Stil Dosyası
   Font: Jost (Google Fonts) — brief'te Jost/Montserrat seçeneği verilmişti
   ========================================================================== */

:root {
  --color-black: #141414;
  --color-charcoal: #1f1f1f;
  --color-white: #ffffff;
  --color-offwhite: #f7f6f4;
  --color-gray: #6b6b6b;
  --color-line: #e2e0db;

  /* Referans sitedeki (braunundbraun.com) başlık fontu aslında geniş/ekstantid
     bir grotesk (Swiss 721 Light Extended, ücretli bir font) — en yakın
     ücretsiz eşleniği olan Archivo Expanded ile aynı geniş/hafif hissi
     veriyoruz. Gövde metninde referans "Futura Book" kullanıyor, Jost da
     zaten aynı ailenin (geometrik, yuvarlak) ücretsiz bir benzeri. */
  --font-display: 'Archivo Expanded', sans-serif;
  --font-heading: 'Archivo Expanded', sans-serif;
  --font-body: 'Jost', 'Montserrat', sans-serif;

  --tracking-heading: 0.15em;
  --tracking-wide: 0.2em;
  --tracking-display: 0.04em;

  --header-height: 88px;
  --transition-slow: 1.8s;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: 300;
  color: var(--color-charcoal);
  background: var(--color-offwhite);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

ul { list-style: none; margin: 0; padding: 0; }

.section-label {
  font-family: var(--font-heading);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tracking-heading);
  font-size: 0.8rem;
  color: var(--color-gray);
  margin-bottom: 1.2rem;
  display: block;
}

.section-title {
  font-family: var(--font-display);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: var(--tracking-display);
  font-size: clamp(1.9rem, 3.6vw, 2.9rem);
  margin: 0 0 2.5rem;
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 6vw;
}

/* ---------- Header ---------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  padding: 0 6vw;
  background: transparent;
  transition: background 0.4s ease, box-shadow 0.4s ease, height 0.4s ease;
}

.site-header.is-scrolled {
  background: rgba(247, 246, 244, 0.96);
  box-shadow: 0 1px 0 var(--color-line);
  height: 72px;
}

.logo { display: block; line-height: 0; }

.logo-img {
  height: 40px;
  width: auto;
  /* Logo dosyası siyah çizilmiş; koyu hero üzerindeyken beyaza çeviriyoruz,
     header beyaza dönünce (scroll/menü) tekrar siyaha bırakıyoruz. */
  filter: invert(1);
  transition: filter 0.4s ease, height 0.4s ease;
}

.site-header.is-scrolled .logo-img,
.site-header.menu-open .logo-img { filter: invert(0); }

.site-header.is-scrolled .logo-img { height: 32px; }

.main-nav ul {
  display: flex;
  gap: 2.6rem;
}

.main-nav a {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.78rem;
  letter-spacing: var(--tracking-heading);
  text-transform: uppercase;
  color: var(--color-white);
  transition: color 0.4s ease, opacity 0.2s ease;
  padding-bottom: 4px;
  border-bottom: 1px solid transparent;
}

.main-nav a:hover { opacity: 0.65; }

.site-header.is-scrolled .main-nav a { color: var(--color-charcoal); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 110;
}

.nav-toggle span {
  width: 26px;
  height: 1px;
  background: var(--color-white);
  transition: background 0.3s ease, transform 0.3s ease, opacity 0.3s ease;
}

.site-header.is-scrolled .nav-toggle span,
.site-header.menu-open .nav-toggle span { background: var(--color-charcoal); }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  height: 100vh;
  min-height: 560px;
  overflow: hidden;
  background: var(--color-black);
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity var(--transition-slow) ease;
}

.hero-slide.is-active { opacity: 1; }

.hero-slide::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.28);
}

.hero-slide--1 { background-color: #2b2f33; }
.hero-slide--2 { background-color: #24262a; }
.hero-slide--3 { background-color: #1a1c1e; }

.hero-content {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 1.2rem;
}

.hero-word {
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--color-white);
  text-transform: uppercase;
  font-size: clamp(3.6rem, 11vw, 9rem);
  letter-spacing: clamp(4px, 0.8vw, 12px);
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 1s ease 0.3s, transform 1s ease 0.3s;
}

.hero-slide.is-active .hero-word {
  opacity: 1;
  transform: translateY(0);
}

.hero-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 1.8rem;
  font-weight: 300;
  cursor: pointer;
  padding: 1rem;
  opacity: 0.75;
  transition: opacity 0.3s ease;
}

.hero-arrow:hover { opacity: 1; }
.hero-arrow--prev { left: 1.5vw; }
.hero-arrow--next { right: 1.5vw; }

.hero-scroll-cue {
  position: absolute;
  bottom: 2.2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  color: var(--color-white);
  font-size: 0.7rem;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  opacity: 0.8;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.hero-scroll-cue::after {
  content: '';
  width: 1px;
  height: 26px;
  background: var(--color-white);
  animation: scrollcue 1.8s ease-in-out infinite;
}

@keyframes scrollcue {
  0% { transform: scaleY(0); transform-origin: top; opacity: 0.4; }
  50% { transform: scaleY(1); transform-origin: top; opacity: 1; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0.4; }
}

/* ---------- Placeholder helper (kaldırılacak: görseller eklenince) ---------- */

/* Görseli henüz eklenmemiş her alan için ortak, sitenin diline uygun
   yer tutucu (dosya adı yerine ikon + "Görsel Yakında" — ziyaretçi için
   sade, geliştirici için hâlâ hover'da dosya adını gösteriyor). */
.img-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  text-align: center;
  padding: 1rem;
  color: #8a8779;
  background: repeating-linear-gradient(135deg, rgba(0, 0, 0, 0.035) 0 2px, transparent 2px 16px);
}

.img-placeholder svg { width: 26px; height: 26px; opacity: 0.55; }

.img-placeholder span {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.65;
}

.img-placeholder--dark {
  display: none;
  color: rgba(255, 255, 255, 0.6);
  background: repeating-linear-gradient(135deg, rgba(255, 255, 255, 0.035) 0 2px, transparent 2px 16px);
}

/* ---------- Projeler ---------- */

.projects {
  padding: 7rem 0;
  background: var(--color-offwhite);
}

.projects-header {
  text-align: center;
  margin-bottom: 3.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--color-line);
}

.project-card {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #d8d5cd center/cover no-repeat;
  cursor: pointer;
}

.project-card:focus-visible {
  outline: 2px solid var(--color-charcoal);
  outline-offset: -2px;
}

.project-card.is-future { background: #cfcdc6; }

.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(20, 20, 20, 0);
  display: flex;
  align-items: flex-end;
  padding: 1.6rem;
  transition: background 0.4s ease;
}

.project-card:hover .project-overlay { background: rgba(20, 20, 20, 0.55); }

.project-info {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}

.project-card:hover .project-info { opacity: 1; transform: translateY(0); }

.project-name {
  color: var(--color-white);
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: 0.03em;
  font-size: 0.95rem;
  text-transform: uppercase;
}

.project-tag {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  margin-top: 4px;
  display: block;
}

/* ---------- Hakkımızda ---------- */

.about {
  padding: 7rem 0;
  background: var(--color-white);
}

.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 5vw;
  align-items: center;
}

.about-visual {
  aspect-ratio: 3 / 4;
  background: #e7e5df center/cover no-repeat;
  position: relative;
  overflow: hidden;
}

.about-text p {
  font-size: 1.02rem;
  color: #333;
  max-width: 46ch;
}

/* ---------- Hizmetler ---------- */

.services {
  padding: 7rem 0;
  background: var(--color-offwhite);
  text-align: center;
}

.services-header { display: flex; flex-direction: column; align-items: center; margin-bottom: 3.5rem; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3.5rem;
  text-align: left;
}

.service-card {
  border-top: 1px solid var(--color-charcoal);
  padding-top: 1.6rem;
}

.service-title {
  font-family: var(--font-display);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: 1.15rem;
  margin: 0 0 0.9rem;
}

.service-desc {
  font-size: 0.92rem;
  color: #4a4a4a;
  margin-bottom: 1.1rem;
}

.service-list li {
  display: flex;
  align-items: baseline;
  gap: 0.6em;
  font-size: 0.86rem;
  color: #333;
  margin-bottom: 0.5rem;
}

.service-list li::before {
  content: '·';
  flex: none;
  font-size: 1.6em;
  line-height: 0;
  color: var(--color-gray);
}

/* ---------- İletişim ---------- */

.contact {
  padding: 7rem 0 0;
  background: var(--color-black);
  color: var(--color-white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4vw;
  padding-bottom: 5rem;
}

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

.contact-details p {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.8);
  margin: 0;
}

.contact-details a { transition: opacity 0.25s ease; }
.contact-details a:hover { opacity: 0.7; }

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 0.9rem;
  margin-bottom: 1.1rem;
}

.contact-icon {
  flex-shrink: 0;
  width: 19px;
  height: 19px;
  margin-top: 0.15rem;
  color: rgba(255, 255, 255, 0.6);
}

.contact-icon svg { width: 100%; height: 100%; display: block; }

.contact-hours {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.8);
  margin: 1.4rem 0 0;
}

.directions-btn {
  display: inline-block;
  margin-top: 1.6rem;
  padding: 0.9rem 2.1rem;
  border: 1px solid rgba(255, 255, 255, 0.5);
  font-size: 0.75rem;
  letter-spacing: var(--tracking-heading);
  text-transform: uppercase;
  transition: background 0.3s ease, color 0.3s ease;
}

.directions-btn:hover { background: var(--color-white); color: var(--color-black); }

.map-wrap {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  filter: grayscale(1) contrast(1.05) brightness(0.9);
  transition: filter 0.5s ease;
}

.map-wrap:hover { filter: grayscale(0.2) contrast(1) brightness(1); }

.map-wrap iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

.footer-bar {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding: 1.6rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: rgba(255, 255, 255, 0.5);
  flex-wrap: wrap;
  gap: 0.6rem;
}

.footer-bar a:hover { color: var(--color-white); }

/* ---------- Proje Detay Modalı ---------- */

.project-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

.project-modal.is-open {
  visibility: visible;
  opacity: 1;
}

.project-modal-panel {
  position: fixed;
  inset: 0;
  z-index: 1;
  background: var(--color-offwhite);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  transform: translateY(16px);
  transition: transform 0.35s ease;
}

.project-modal.is-open .project-modal-panel { transform: translateY(0); }

.project-modal-close {
  position: absolute;
  top: 1rem;
  right: 1.2rem;
  z-index: 3;
  background: none;
  border: none;
  font-size: 2rem;
  line-height: 1;
  color: var(--color-white);
  cursor: pointer;
  font-family: var(--font-body);
  font-weight: 300;
}

.modal-gallery {
  position: relative;
  height: min(72vh, 720px);
  background: var(--color-black);
  flex-shrink: 0;
}

.modal-gallery-image {
  position: absolute;
  inset: 0;
}

.modal-gallery-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.modal-gallery-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 1rem;
  opacity: 0.8;
  transition: opacity 0.3s ease;
}

.modal-gallery-arrow:hover { opacity: 1; }
.modal-gallery-arrow--prev { left: 0.5rem; }
.modal-gallery-arrow--next { right: 0.5rem; }

.modal-gallery-count {
  position: absolute;
  bottom: 1rem;
  right: 1.2rem;
  z-index: 2;
  color: rgba(255, 255, 255, 0.85);
  font-family: var(--font-body);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

.modal-body {
  padding: 2.4rem 3rem 3rem;
}

.modal-tag {
  display: block;
  font-family: var(--font-body);
  font-size: 0.72rem;
  letter-spacing: var(--tracking-heading);
  text-transform: uppercase;
  color: var(--color-gray);
  margin-bottom: 0.6rem;
}

.modal-title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  text-transform: uppercase;
  letter-spacing: var(--tracking-display);
  margin: 0 0 1.2rem;
}

.modal-desc {
  max-width: 60ch;
  color: #3a3a3a;
  margin: 0 0 2rem;
}

.modal-credits {
  display: grid;
  grid-template-columns: repeat(4, auto);
  gap: 0.4rem 2.5rem;
  margin: 0 0 2.4rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--color-line);
}

.modal-credits dt {
  grid-row: 1;
  font-family: var(--font-body);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gray);
}

.modal-credits dd {
  grid-row: 2;
  margin: 0;
  font-size: 0.9rem;
  color: var(--color-charcoal);
}

.back-to-portfolio {
  background: none;
  border: 1px solid var(--color-charcoal);
  padding: 0.8rem 1.8rem;
  font-family: var(--font-body);
  font-size: 0.72rem;
  letter-spacing: var(--tracking-heading);
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.3s ease, color 0.3s ease;
}

.back-to-portfolio:hover { background: var(--color-charcoal); color: var(--color-white); }

/* ---------- Mobil Uyumluluk ---------- */

@media (max-width: 900px) {
  .about-grid,
  .contact-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; gap: 2.4rem; }
  .project-grid { grid-template-columns: repeat(2, 1fr); }

  /* Tek sütuna düşünce 3:4 dikey görsel tablet genişliğinde aşırı
     uzuyordu (768px genişlikte ~1024px boy) — tablet/mobilde daha
     ölçülü bir yükseklikte tutuyoruz. */
  .about-visual { aspect-ratio: 16 / 10; max-height: 420px; }
}

@media (max-width: 640px) {
  :root { --header-height: 72px; }

  .nav-toggle { display: flex; }

  .main-nav {
    position: fixed;
    inset: 0;
    background: var(--color-offwhite);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
    z-index: 90;
  }

  .site-header.menu-open .main-nav {
    opacity: 1;
    pointer-events: auto;
  }

  .main-nav ul {
    flex-direction: column;
    gap: 2.2rem;
    text-align: center;
  }

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

  .project-grid { grid-template-columns: 1fr; }

  .hero-word { font-size: clamp(2rem, 12vw, 3rem); letter-spacing: 3px; }

  .contact { padding-top: 5rem; }

  .modal-gallery { height: 46vh; }
  .modal-body { padding: 1.8rem 1.4rem 2.4rem; }
  .modal-credits { grid-template-columns: repeat(2, auto); }
}