/* ============================================================
   BARCHITECT — BASE
   Reset · tipografi · layout · buton · header · footer
   ============================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--ink);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body.is-locked { overflow: hidden; }

img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; padding: 0; }

::selection { background: var(--ink); color: var(--cream); }

:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Tipografi ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -.03em;
  text-wrap: balance;
}
h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); line-height: 1.2; letter-spacing: -.02em; }
p  { text-wrap: pretty; }

.serif { font-family: var(--font-accent); font-weight: 400; font-style: italic; letter-spacing: -.01em; }
.lead  { font-size: var(--fs-lead); color: var(--ink-70); line-height: 1.62; }
.muted { color: var(--ink-55); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: var(--fs-micro);
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink-55);
}
.eyebrow::before {
  content: ''; width: 20px; height: 1px; background: var(--sand);
}
.eyebrow--olive { color: var(--olive); }
.eyebrow--olive::before { background: var(--olive); }
.on-dark .eyebrow, .dark .eyebrow, .foot .eyebrow { color: var(--cream-55); }
.on-dark .eyebrow::before, .dark .eyebrow::before, .foot .eyebrow::before { background: var(--cream-55); }

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gut); }
.section { padding-block: var(--sec); }
.section--tight { padding-block: clamp(44px, 9vw, 84px); }
.section__head { display: flex; flex-direction: column; gap: 14px; margin-bottom: clamp(26px, 5vw, 46px); }
.section__head p { max-width: var(--maxw-text); }

.dark { background: var(--ink); color: var(--cream); }
.dark h1, .dark h2, .dark h3 { color: var(--cream); }
.dark .lead, .dark .muted { color: var(--cream-70); }
.sand { background: var(--sand-soft); }

.divider { height: 1px; background: var(--ink-12); border: 0; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ---------- Butonlar ---------- */
.btn {
  --btn-bg: var(--ink);
  --btn-fg: var(--cream);
  position: relative;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 52px;
  padding: 14px 26px;
  border-radius: var(--r-pill);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-weight: 500;
  font-size: .975rem;
  letter-spacing: -.01em;
  line-height: 1;
  text-align: center;
  transition: transform .28s var(--ease), box-shadow .28s var(--ease), background .28s var(--ease), opacity .2s;
  will-change: transform;
}
.btn:hover  { transform: translateY(-2px); box-shadow: var(--sh-2); }
.btn:active { transform: translateY(0) scale(.985); }
.btn svg { flex: none; }
.btn--ghost   { --btn-bg: transparent; --btn-fg: var(--ink); box-shadow: inset 0 0 0 1px var(--ink-30); }
.btn--ghost:hover { --btn-bg: var(--ink); --btn-fg: var(--cream); box-shadow: var(--sh-2); }
.btn--light   { --btn-bg: var(--cream); --btn-fg: var(--ink); }
.btn--sand    { --btn-bg: var(--sand); --btn-fg: var(--ink); }
.btn--olive   { --btn-bg: var(--olive); --btn-fg: #fff; }
.btn--outline-light { --btn-bg: transparent; --btn-fg: var(--cream); box-shadow: inset 0 0 0 1px var(--cream-55); }
.btn--outline-light:hover { --btn-bg: var(--cream); --btn-fg: var(--ink); }
.btn--block   { width: 100%; }
.btn--sm      { min-height: 42px; padding: 10px 18px; font-size: .875rem; }
.btn[disabled] { opacity: .4; pointer-events: none; }

.btn-arrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 500; font-size: .9rem; color: var(--ink);
  transition: gap .3s var(--ease), color .3s;
}
.btn-arrow svg { transition: transform .3s var(--ease); }
.btn-arrow:hover { gap: 13px; }

/* ---------- Scroll reveal ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
  transition-delay: var(--d, 0ms);
}
[data-reveal].in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}

/* ============================================================
   HEADER
   ============================================================ */
.hdr {
  position: fixed; inset: 0 0 auto 0; z-index: 80;
  height: var(--header-h);
  display: flex; align-items: center;
  transition: background .4s var(--ease), box-shadow .4s var(--ease), backdrop-filter .4s;
}
.hdr::before {
  content: ''; position: absolute; inset: 0;
  background: var(--cream);
  opacity: 0; transition: opacity .4s var(--ease);
}
.hdr.is-stuck::before { opacity: .92; backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.hdr.is-stuck { box-shadow: 0 1px 0 var(--ink-12); }

.hdr__in {
  position: relative; z-index: 1;
  width: 100%; max-width: var(--maxw); margin-inline: auto;
  padding-inline: var(--gut);
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.logo {
  font-family: var(--font-display);
  font-weight: 600; font-size: 1.22rem; letter-spacing: -.045em;
  display: inline-flex; align-items: center; gap: 2px;
}
.logo i { font-style: normal; color: var(--olive); }

.hdr__nav { display: none; }
.hdr__nav a {
  position: relative; font-size: .925rem; font-weight: 450; color: var(--ink-70);
  padding-block: 6px; transition: color .25s;
}
.hdr__nav a::after {
  content: ''; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%;
  background: currentColor; transform: scaleX(0); transform-origin: right;
  transition: transform .4s var(--ease);
}
.hdr__nav a:hover { color: var(--ink); }
.hdr__nav a:hover::after, .hdr__nav a[aria-current="page"]::after { transform: scaleX(1); transform-origin: left; }
.hdr__nav a[aria-current="page"] { color: var(--ink); }

.hdr__cta { display: none; }

/* hamburger */
.burger {
  width: 46px; height: 46px; margin-right: -10px;
  display: grid; place-items: center; border-radius: var(--r-pill);
  transition: background .25s;
}
.burger:hover { background: var(--ink-06); }
.burger span {
  display: block; width: 22px; height: 1.5px; background: var(--ink); border-radius: 2px;
  transition: transform .4s var(--ease), opacity .2s var(--ease);
}
.burger span + span { margin-top: 6px; }
body.menu-open .burger span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
body.menu-open .burger span:nth-child(2) { opacity: 0; }
body.menu-open .burger span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* Menü açıkken header koyu zemin üzerinde kalır */
body.menu-open .hdr { box-shadow: none; }
body.menu-open .hdr::before { opacity: 0; }
body.menu-open .logo { color: var(--cream); }
body.menu-open .logo i { color: var(--sand); }
body.menu-open .burger span { background: var(--cream); }
body.menu-open .burger:hover { background: rgba(247,245,238,.12); }

/* mobil menü */
.menu {
  position: fixed; inset: 0; z-index: 70;
  background: var(--ink); color: var(--cream);
  padding: calc(var(--header-h) + 28px) var(--gut) 34px;
  display: flex; flex-direction: column; justify-content: space-between;
  clip-path: inset(0 0 100% 0);
  transition: clip-path .62s var(--ease);
  visibility: hidden;
}
body.menu-open .menu { clip-path: inset(0 0 0 0); visibility: visible; }
.menu__list { display: flex; flex-direction: column; }
.menu__list a {
  font-family: var(--font-display);
  font-size: clamp(2rem, 11vw, 3rem);
  font-weight: 500; letter-spacing: -.04em; line-height: 1.5;
  border-bottom: 1px solid rgba(247,245,238,.14);
  display: flex; align-items: baseline; justify-content: space-between;
  opacity: 0; transform: translateY(16px);
  transition: opacity .5s var(--ease), transform .5s var(--ease), color .25s;
}
.menu__list a span { font-family: var(--font-body); font-size: .7rem; color: var(--sand); letter-spacing: .1em; }
body.menu-open .menu__list a { opacity: 1; transform: none; transition-delay: calc(90ms + var(--i) * 65ms); }
.menu__list a:hover { color: var(--sand); }
.menu__foot { display: flex; flex-direction: column; gap: 16px; opacity: 0; transition: opacity .5s .4s; }
body.menu-open .menu__foot { opacity: 1; }
.menu__foot .meta { font-size: .82rem; color: var(--cream-55); }

@media (min-width: 900px) {
  .burger { display: none; }
  .menu { display: none; }
  .hdr__nav { display: flex; align-items: center; gap: 34px; }
  .hdr__cta { display: inline-flex; }
}

/* ============================================================
   FOOTER / İLETİŞİM
   ============================================================ */
.foot { background: var(--ink); color: var(--cream); padding-block: var(--sec) 34px; }
.foot__grid { display: grid; gap: 40px; }
.foot__title { font-size: var(--fs-h1); }
.foot__actions { display: flex; flex-direction: column; gap: 12px; margin-top: 26px; }

.news {
  background: rgba(247,245,238,.06);
  border: 1px solid rgba(247,245,238,.14);
  border-radius: var(--r); padding: 20px;
}
.news h3 { font-size: 1.05rem; margin-bottom: 6px; }
.news p { font-size: .85rem; color: var(--cream-55); margin-bottom: 14px; }
.news__row { display: flex; flex-direction: column; gap: 10px; }
.news input {
  width: 100%; min-height: 50px; padding: 12px 16px;
  background: rgba(247,245,238,.08); color: var(--cream);
  border: 1px solid rgba(247,245,238,.2); border-radius: var(--r-pill);
  transition: border-color .25s, background .25s;
}
.news input::placeholder { color: rgba(247,245,238,.45); }
.news input:focus { outline: none; border-color: var(--sand); background: rgba(247,245,238,.12); }

.foot__contact { display: flex; flex-direction: column; gap: 18px; }
.foot__contact a.big {
  font-family: var(--font-display); font-size: clamp(1.05rem, 4.6vw, 1.4rem);
  letter-spacing: -.02em; border-bottom: 1px solid rgba(247,245,238,.25);
  padding-bottom: 6px; display: inline-block; width: fit-content;
  transition: color .25s, border-color .25s;
}
.foot__contact a.big:hover { color: var(--sand); border-color: var(--sand); }
.foot__note {
  font-size: .8rem; line-height: 1.55; color: var(--cream-55);
  border-left: 2px solid var(--olive); padding-left: 12px;
}
.socials { display: flex; gap: 10px; flex-wrap: wrap; }
.socials a {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 16px; border-radius: var(--r-pill);
  border: 1px solid rgba(247,245,238,.22); font-size: .82rem;
  transition: background .25s, color .25s, transform .25s var(--ease);
}
.socials a:hover { background: var(--cream); color: var(--ink); transform: translateY(-2px); }

.foot__bottom {
  margin-top: 46px; padding-top: 20px; border-top: 1px solid rgba(247,245,238,.14);
  display: flex; flex-wrap: wrap; gap: 8px 18px; justify-content: space-between;
  font-size: .74rem; color: var(--cream-55);
}

@media (min-width: 860px) {
  .foot__grid { grid-template-columns: 1.05fr .95fr; gap: 60px; }
  .news__row { flex-direction: row; }
  .news__row .btn { flex: none; }
}

/* ============================================================
   SABİT WHATSAPP BUTONU
   ============================================================ */
.wa-fab {
  position: fixed; z-index: 60;
  right: max(16px, env(safe-area-inset-right));
  bottom: max(16px, env(safe-area-inset-bottom));
  display: inline-flex; align-items: center; gap: 9px;
  height: 52px; padding: 0 16px;
  border-radius: var(--r-pill);
  background: var(--ink); color: var(--cream);
  box-shadow: var(--sh-3);
  font-size: .85rem; font-weight: 500;
  transform: translateY(90px); opacity: 0;
  transition: transform .5s var(--ease), opacity .4s, background .25s;
}
.wa-fab.in { transform: none; opacity: 1; }
.wa-fab:hover { background: var(--olive); }
.wa-fab svg { width: 21px; height: 21px; }
.wa-fab span { display: none; }
@media (min-width: 700px) { .wa-fab span { display: inline; } }
body.menu-open .wa-fab { opacity: 0; pointer-events: none; }