/* ============================================================
   YAMAN MİMARLIK — layout.css
   App shell: fixed sol sidebar + content, blueprint grid arka plan,
   responsive off-canvas.
   ============================================================ */

.app { min-height: 100vh; }

/* ---------- Blueprint grid arka plan utility ----------
   İnce + kalın çift linear-gradient. Kağıt üzerinde teknik çizim ızgarası. */
.blueprint {
  background-color: var(--paper);
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px),
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size:
    120px 120px, 120px 120px,   /* kalın hücre */
    24px 24px, 24px 24px;        /* ince hücre */
  background-position: -1px -1px, -1px -1px, -1px -1px, -1px -1px;
}
.blueprint--ink {
  background-color: var(--ink);
  background-image:
    linear-gradient(var(--line-paper) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-paper) 1px, transparent 1px),
    linear-gradient(rgba(250,250,250,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(250,250,250,.06) 1px, transparent 1px);
  background-size: 120px 120px, 120px 120px, 24px 24px, 24px 24px;
}

/* ============================================================
   SIDEBAR (fixed sol dikey menü)
   ============================================================ */
.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--sidebar-w);
  z-index: 60;
  display: flex;
  flex-direction: column;
  background: var(--ink);
  color: var(--paper);
  border-right: 1px solid #000;
  padding: clamp(1.4rem, 2vw, 2rem) clamp(1.2rem, 1.6vw, 1.8rem);
  overflow: hidden;
}
/* Sidebar içi ince çerçeve detayı (blueprint paftası hissi) */
.sidebar::before {
  content: "";
  position: absolute;
  inset: 14px;
  border: 1px solid var(--line-paper);
  pointer-events: none;
}

.sidebar__top { position: relative; }
.brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: .65rem;
}
.brand__logo {
  width: clamp(54px, 4.6vw, 72px);
  height: auto;
  /* logo siyah çerçeveli; ink zemin üzerinde görünür kalsın diye ters çevir + hafif */
  filter: invert(1) brightness(1.9) contrast(1.1);
}
.brand__name {
  font-family: var(--serif);
  font-size: 1.04rem;
  letter-spacing: .12em;
  line-height: 1.1;
  text-transform: uppercase;
  font-weight: 500;
}
.brand__tag {
  font-size: .56rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted-2);
  max-width: 16ch;
}

/* Dikey nav (ortada) */
.sidebar__nav {
  margin-top: auto;
  margin-bottom: auto;
  padding-block: 2rem;
}
.nav {
  display: flex;
  flex-direction: column;
  gap: .15rem;
  counter-reset: nav;
}
.nav__link {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: .9rem;
  padding: .55rem 0;
  font-family: var(--sans);
  font-size: .98rem;
  letter-spacing: .04em;
  color: rgba(250,250,250,.62);
  transition: color .4s var(--ease), padding-left .4s var(--ease);
  counter-increment: nav;
}
.nav__link::before {
  content: counter(nav, decimal-leading-zero);
  font-size: .6rem;
  letter-spacing: .1em;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  transition: color .4s var(--ease);
  transform: translateY(-.1em);
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: .35rem;
  width: 0; height: 1px;
  background: var(--paper);
  transition: width .45s var(--ease);
}
.nav__link:hover,
.nav__link:focus-visible { color: var(--paper); padding-left: .35rem; }
.nav__link:hover::before { color: var(--paper); }
.nav__link:hover::after { width: 1.4rem; }
.nav__link.is-active { color: var(--paper); }
.nav__link.is-active::after { width: 1.4rem; }
.nav__link.is-active::before { color: var(--paper); }

/* Kurumsal: alt menü açan buton (nav__link görünümünde) */
.nav__link--sub {
  width: 100%;
  background: none;
  border: 0;
  cursor: pointer;
  text-align: left;
  font: inherit;
  color: rgba(250,250,250,.62);
}
.nav__link--sub > span:first-of-type { /* etiket */ }
.nav__chev {
  margin-left: auto;
  font-size: 1.1rem;
  line-height: 1;
  transform: translateY(-.05em);
  transition: transform .4s var(--ease), color .4s var(--ease);
  color: var(--muted);
}
.nav__link--sub:hover .nav__chev,
.nav__link--sub.is-active .nav__chev { color: var(--paper); transform: translateX(.2rem) translateY(-.05em); }

/* ---- Kurumsal flyout alt menü ---- */
.sidebar__nav { position: relative; }
.subnav {
  position: absolute;
  left: 0; right: 0;
  top: 50%;
  transform: translate(16px, -50%);
  display: flex;
  flex-direction: column;
  gap: .25rem;
  background: var(--ink);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity .4s var(--ease), transform .45s var(--ease), visibility .4s var(--ease);
}
.sidebar.show-sub .nav {
  opacity: 0;
  visibility: hidden;
  transform: translateX(-16px);
  transition: opacity .35s var(--ease), transform .4s var(--ease), visibility .35s var(--ease);
  pointer-events: none;
}
.sidebar.show-sub .subnav {
  opacity: 1;
  visibility: visible;
  transform: translate(0, -50%);
  pointer-events: auto;
}
.nav { transition: opacity .35s var(--ease), transform .4s var(--ease); }

.subnav__back {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  background: none;
  border: 0;
  cursor: pointer;
  font: inherit;
  color: var(--paper);
  padding: 0 0 .9rem;
  margin-bottom: .6rem;
  border-bottom: 1px solid var(--line-paper);
  font-size: .62rem;
  letter-spacing: .2em;
  text-transform: uppercase;
}
.subnav__back span:first-child { font-size: 1.1rem; letter-spacing: 0; transition: transform .35s var(--ease); }
.subnav__back:hover span:first-child { transform: translateX(-.25rem); }
.subnav__list { display: flex; flex-direction: column; gap: .1rem; }
.subnav__link {
  position: relative;
  display: block;
  padding: .5rem 0;
  font-family: var(--sans);
  font-size: .9rem;
  letter-spacing: .03em;
  color: rgba(250,250,250,.58);
  transition: color .35s var(--ease), padding-left .35s var(--ease);
}
.subnav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: .3rem;
  width: 0; height: 1px;
  background: var(--paper);
  transition: width .4s var(--ease);
}
.subnav__link:hover,
.subnav__link:focus-visible { color: var(--paper); padding-left: .35rem; }
.subnav__link:hover::after,
.subnav__link.is-active::after { width: 1.2rem; }
.subnav__link.is-active { color: var(--paper); }

/* Alt: sosyal + whatsapp */
.sidebar__foot {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line-paper);
}
.social {
  display: flex;
  gap: 1.1rem;
  font-size: .62rem;
  letter-spacing: .2em;
  text-transform: uppercase;
}
.social a { color: var(--muted-2); transition: color .35s var(--ease); }
.social a:hover { color: var(--paper); }
.wa-btn {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: .6rem;
  padding: .7rem .85rem;
  border: 1px solid var(--line-paper);
  font-size: .68rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--paper);
  transition: background .4s var(--ease), color .4s var(--ease), border-color .4s var(--ease);
}
.wa-btn svg { width: 15px; height: 15px; flex: none; }
.wa-btn:hover { background: var(--paper); color: var(--ink); border-color: var(--paper); }

/* Hamburger (mobil) — sidebar dışında sabit buton (SAĞDA) */
.menu-toggle {
  position: fixed;
  top: 14px; right: 14px;
  z-index: 80;
  width: 46px; height: 46px;
  display: none;
  align-items: center; justify-content: center;
  background: var(--ink);
  color: var(--paper);
  border: 1px solid #000;
}
/* Mobil logo — sol üstte sabit (yalnızca mobilde görünür) */
.mobile-brand {
  position: fixed;
  top: 14px; left: 14px;
  z-index: 80;
  width: 46px; height: 46px;
  display: none;
  align-items: center; justify-content: center;
  background: var(--paper);
  border: 1px solid var(--ink);
}
.mobile-brand img { width: 30px; height: auto; display: block; }
.menu-toggle__bars { position: relative; width: 20px; height: 12px; }
.menu-toggle__bars span {
  position: absolute; left: 0; width: 100%; height: 1.5px;
  background: var(--paper);
  transition: transform .4s var(--ease), opacity .3s var(--ease), top .4s var(--ease);
}
.menu-toggle__bars span:nth-child(1) { top: 0; }
.menu-toggle__bars span:nth-child(2) { top: 5px; }
.menu-toggle__bars span:nth-child(3) { top: 10px; }
.scrim {
  position: fixed; inset: 0; z-index: 55;
  background: rgba(10,10,10,.5);
  opacity: 0; visibility: hidden;
  transition: opacity .4s var(--ease), visibility .4s var(--ease);
  backdrop-filter: blur(2px);
}

/* ============================================================
   CONTENT
   ============================================================ */
.content {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  position: relative;
}

/* ============================================================
   RESPONSIVE — sidebar off-canvas
   ============================================================ */
@media (max-width: 880px) {
  .menu-toggle { display: flex; }
  .mobile-brand { display: flex; }
  /* Sidebar açıkken sol logoyu gizle (sidebar kendi logosunu gösterir) */
  body.nav-open .mobile-brand { opacity: 0; pointer-events: none; transition: opacity .3s var(--ease); }
  .sidebar {
    transform: translateX(-100%);
    transition: transform .5s var(--ease);
    width: min(78vw, 320px);
    box-shadow: 0 0 60px rgba(0,0,0,.4);
  }
  .content { margin-left: 0; }

  body.nav-open .sidebar { transform: translateX(0); }
  body.nav-open .scrim { opacity: 1; visibility: visible; }
  body.nav-open .menu-toggle__bars span:nth-child(1) { top: 5px; transform: rotate(45deg); }
  body.nav-open .menu-toggle__bars span:nth-child(2) { opacity: 0; }
  body.nav-open .menu-toggle__bars span:nth-child(3) { top: 5px; transform: rotate(-45deg); }
}