:root {
  --bg: #f6f3ee;
  --bg-dark: #1c1b19;
  --ink: #23211e;
  --muted: #7a746b;
  --accent: #a8875a;
  --line: rgba(35, 33, 30, .12);
  --serif: "Audiowide", "Inter", system-ui, sans-serif;
  --sans: "Inter", system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--sans); color: var(--ink); background: var(--bg); line-height: 1.7; font-weight: 300; overflow-x: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--serif); font-weight: 500; line-height: 1.15; }
h2 { font-size: clamp(2rem, 4vw, 3.2rem); }
em { font-style: italic; color: var(--accent); }

.eyebrow { text-transform: uppercase; letter-spacing: .25em; font-size: .72rem; color: var(--accent); margin-bottom: 1rem; font-weight: 500; }

.btn { display: inline-block; padding: .95rem 2rem; background: var(--accent); color: #fff; border: 1px solid var(--accent); font-size: .8rem; letter-spacing: .15em; text-transform: uppercase; cursor: pointer; transition: .3s; font-family: var(--sans); }
.btn:hover { background: transparent; color: var(--accent); }
.btn-ghost { background: transparent; border-color: rgba(255,255,255,.6); }
.btn-ghost:hover { background: #fff; color: var(--ink); border-color: #fff; }
.btn-sm { padding: .6rem 1.3rem; }

/* Menü */
.nav { position: fixed; inset: 0 0 auto; z-index: 50; display: flex; align-items: center; justify-content: space-between; padding: 1.5rem 5vw; color: #fff; transition: .4s; }
.nav.scrolled { background: rgba(246, 243, 238, .95); color: var(--ink); padding: 1rem 5vw; backdrop-filter: blur(8px); box-shadow: 0 1px 0 var(--line); }
.logo { font-family: var(--serif); font-size: 1.45rem; letter-spacing: .12em; font-weight: 600; white-space: nowrap; }
.logo span { font-weight: 400; font-style: italic; letter-spacing: .04em; color: var(--accent); margin-left: .5rem; }
.nav-links { display: flex; align-items: center; gap: 2.2rem; font-size: .82rem; letter-spacing: .1em; text-transform: uppercase; }
.nav-links a:not(.btn):hover { color: var(--accent); }
.burger { display: none; background: none; border: 0; cursor: pointer; width: 28px; }
.burger span { display: block; height: 1.5px; background: currentColor; margin: 7px 0; transition: .3s; }

/* Bölümler */
.section { padding: 8rem 5vw; }
.section-head { margin-bottom: 4rem; }

.about { display: grid; grid-template-columns: 1fr 1fr; gap: 6rem; align-items: center; }
.about-img { height: 100%; min-height: 520px; overflow: hidden; }
.about-img img { width: 100%; height: 100%; object-fit: cover; }
.about-text h2 { margin-bottom: 2rem; }
.about-text p + p { margin-top: 1.2rem; }
.stats { margin-top: 3rem; display: grid; grid-template-columns: 1fr 1fr; gap: 3rem 2rem; }
.stats strong { display: block; font-family: var(--serif); font-size: 3.4rem; font-weight: 500; color: var(--accent); line-height: 1; }
.stats span { font-size: .8rem; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }

.services { background: var(--bg-dark); color: #e9e4dc; }
.service-grid { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(255,255,255,.12); }
.service { padding: 3rem 2rem 3rem 0; border-right: 1px solid rgba(255,255,255,.12); transition: .4s; }
.service:not(:first-child) { padding-left: 2rem; }
.service:last-child { border-right: 0; }
.service:hover { background: rgba(255,255,255,.03); }
.service .num { font-family: var(--serif); color: var(--accent); font-size: 1.1rem; }
.service h3 { font-size: 1.7rem; margin: 1.2rem 0 1rem; }
.service p { font-size: .92rem; opacity: .75; }

/* Projeler */
.projects .section-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 2rem; }
.projects .section-head .eyebrow { width: 100%; margin-bottom: -1rem; }
.filters { display: flex; gap: .5rem; flex-wrap: wrap; }
.filters button { background: none; border: 1px solid var(--line); padding: .5rem 1.2rem; font-family: var(--sans); font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; cursor: pointer; transition: .3s; color: var(--ink); }
.filters button.active, .filters button:hover { background: var(--ink); color: #fff; border-color: var(--ink); }
.project-grid { display: grid; grid-template-columns: repeat(3, 1fr); grid-auto-rows: 320px; gap: 1.2rem; grid-auto-flow: dense; }
.project { position: relative; overflow: hidden; cursor: zoom-in; background: #d9d2c6; }
.project.tall { grid-row: span 2; }
.project.wide { grid-column: span 2; }
.project.hidden { display: none; }
.project img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s ease; }
.project:hover img { transform: scale(1.06); }
.project figcaption { position: absolute; inset: auto 0 0; padding: 2rem 1.5rem 1.4rem; color: #fff; background: linear-gradient(transparent, rgba(0,0,0,.7)); transform: translateY(30%); opacity: 0; transition: .5s; }
.project:hover figcaption { transform: none; opacity: 1; }
.project figcaption h3 { font-size: 1.6rem; }
.project figcaption span { font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; opacity: .85; }

/* Görsel yoksa yer tutucu */
.ph { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; text-align: center; padding: 1rem; color: rgba(35,33,30,.45); font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; background: repeating-linear-gradient(135deg, #e4ddd1 0 14px, #ddd5c8 14px 28px); }
.h3d-sabit .ph { position: absolute; inset: 0; background: linear-gradient(135deg, #3a342c, #6b5b45 60%, #a8875a); color: rgba(255,255,255,.25); align-items: flex-end; padding-bottom: 6rem; }

/* Süreç */
.process { background: #ece6dc; }
.steps { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 2.5rem; counter-reset: s; }
.steps li { position: relative; padding-top: 2rem; border-top: 1px solid var(--ink); }
.steps span { font-family: var(--serif); font-size: 3rem; color: var(--accent); line-height: 1; }
.steps h3 { font-size: 1.5rem; margin: .8rem 0 .6rem; }
.steps p { font-size: .92rem; color: var(--muted); }

/* Referans */
.quote { text-align: center; padding: 7rem 10vw; }
.quote blockquote { font-family: var(--serif); font-size: clamp(1.6rem, 3vw, 2.4rem); font-style: italic; max-width: 900px; margin: 0 auto; line-height: 1.4; }
.quote cite { display: block; margin-top: 1.5rem; font-family: var(--sans); font-style: normal; font-size: .8rem; letter-spacing: .15em; text-transform: uppercase; color: var(--muted); }

/* İletişim */
.contact { display: grid; grid-template-columns: 1fr 1.2fr; gap: 6rem; background: var(--bg-dark); color: #e9e4dc; }
.contact-info h2 { margin-bottom: 1.5rem; }
.contact-info ul { list-style: none; margin-top: 3rem; }
.contact-info li { padding: 1.1rem 0; border-bottom: 1px solid rgba(255,255,255,.12); display: flex; gap: 2rem; }
.contact-info li strong { width: 90px; font-weight: 500; font-size: .75rem; letter-spacing: .15em; text-transform: uppercase; color: var(--accent); padding-top: .2rem; }
.contact-form { display: flex; flex-direction: column; gap: 1.4rem; }
.contact-form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; }
.contact-form label { display: flex; flex-direction: column; gap: .5rem; font-size: .72rem; letter-spacing: .15em; text-transform: uppercase; opacity: .85; }
.contact-form input, .contact-form select, .contact-form textarea { background: transparent; border: 0; border-bottom: 1px solid rgba(255,255,255,.3); padding: .7rem 0; color: #fff; font: 300 1rem var(--sans); outline: none; transition: .3s; resize: vertical; }
.contact-form select option { color: var(--ink); }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: var(--accent); }
.contact-form .btn { align-self: flex-start; margin-top: .5rem; }
.form-note { font-size: .85rem; color: var(--accent); }

.footer { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; padding: 2rem 5vw; background: #141311; color: #8d877d; font-size: .8rem; }
.footer a { margin-left: 1.5rem; }
.footer a:hover { color: var(--accent); }

.whatsapp { position: fixed; right: 1.5rem; bottom: 1.5rem; z-index: 60; width: 56px; height: 56px; border-radius: 50%; background: #25d366; color: #fff; display: flex; align-items: center; justify-content: center; box-shadow: 0 6px 20px rgba(0,0,0,.25); transition: transform .3s; }
.whatsapp:hover { transform: scale(1.08); }

/* Kaydırınca belirme */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 1s ease, transform 1s ease; }
.reveal.in { opacity: 1; transform: none; }

/* Mobil */
@media (max-width: 1000px) {
  .about, .contact { grid-template-columns: 1fr; gap: 4rem; }
  .service-grid { grid-template-columns: 1fr 1fr; }
  .service { border-bottom: 1px solid rgba(255,255,255,.12); padding-left: 2rem; }
  .steps { grid-template-columns: 1fr 1fr; }
  .project-grid { grid-template-columns: 1fr 1fr; grid-auto-rows: 260px; }
}
@media (max-width: 700px) {
  .logo { font-size: 1.1rem; }
  .about-img { min-height: 300px; }
  .section { padding: 5rem 6vw; }
  .burger { display: block; position: relative; z-index: 2; }
  .nav-links { position: fixed; inset: 0; flex-direction: column; justify-content: center; gap: 2rem; background: var(--bg-dark); color: #fff; font-size: 1rem; transform: translateX(100%); transition: transform .4s; }
  .nav.open .nav-links { transform: none; }
  .nav.open { color: #fff; }
  .nav.open .burger span:first-child { transform: translateY(4px) rotate(45deg); }
  .nav.open .burger span:last-child { transform: translateY(-4px) rotate(-45deg); }
  .service-grid, .steps, .contact-form .row { grid-template-columns: 1fr; }
  .service { padding: 2.5rem 0; border-right: 0; }
  .service:not(:first-child) { padding-left: 0; }
  .project-grid { grid-template-columns: 1fr; }
  .project.wide { grid-column: auto; }
  .project.tall { grid-row: span 1; }
  .project figcaption { transform: none; opacity: 1; }
}