/* ==========================================================================
   Samet SELKİ — Proje detay sayfası (proje.html)
   studio.css üzerine eklenir.
   ========================================================================== */

.pd { min-height: 70vh; }

.pd-loading,
.pd-empty { padding: calc(var(--header-h) + 120px) var(--gutter) 160px; color: var(--muted); }
.pd-empty h1 { margin-top: 16px; font-family: var(--display); font-size: clamp(40px, 6vw, 88px); font-weight: 600; letter-spacing: -.05em; line-height: 1; color: var(--ink); }
.pd-empty p { margin: 16px 0 32px; }
.data-error { padding: 24px; border-radius: var(--radius-sm); background: var(--white); box-shadow: inset 0 0 0 1px var(--line); color: var(--muted); }

/* Hero ---------------------------------------------------------------------- */
.pd-hero { padding-top: calc(var(--header-h) + clamp(40px, 6vw, 88px)); }
.pd-back { display: inline-block; font-size: 15px; color: var(--muted); }
.pd-back:hover { color: var(--ink); }
.pd-top {
  display: flex; justify-content: space-between; gap: 16px;
  margin-top: clamp(32px, 5vw, 64px);
  color: var(--subtle);
}
.pd-top b { color: var(--blue); font-weight: 500; }
.pd-title {
  margin-top: 16px;
  font-family: var(--display);
  font-size: clamp(46px, 9vw, 152px);
  line-height: .92; font-weight: 600; letter-spacing: -.055em;
  text-wrap: balance;
}
.pd-lead {
  margin-top: clamp(20px, 3vw, 32px);
  max-width: 820px;
  font-size: clamp(19px, 1.8vw, 26px); line-height: 1.4; letter-spacing: -.015em;
  color: var(--ink-2);
}
.pd-meta {
  margin: clamp(40px, 6vw, 72px) 0 0;
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--ink);
}
.pd-meta > div { padding: 20px 24px 0 0; }
.pd-meta > div + div { padding-left: 24px; border-left: 1px solid var(--line-2); }
.pd-meta dt { font-family: var(--mono); font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--subtle); }
.pd-meta dd { margin: 8px 0 0; font-size: 16px; font-weight: 500; overflow-wrap: anywhere; }
.pd-meta dd a { color: var(--blue); }

/* Görsel -------------------------------------------------------------------- */
.pd-visual { margin-top: clamp(56px, 7vw, 104px); }
.browser {
  border-radius: 20px;
  background: var(--white);
  box-shadow: 0 0 0 1px var(--line), 0 40px 80px -40px rgba(11, 13, 23, .35);
  overflow: hidden;
}
.browser-bar {
  display: flex; align-items: center; gap: 8px;
  height: 48px; padding: 0 18px;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}
.browser-bar i { width: 11px; height: 11px; border-radius: 50%; background: var(--line-2); }
.browser-bar i:nth-child(1) { background: #ff5f57; }
.browser-bar i:nth-child(2) { background: #febc2e; }
.browser-bar i:nth-child(3) { background: #28c840; }
.browser-bar .mono {
  margin: 0 auto; padding: 5px 16px; border-radius: 999px;
  background: var(--white); box-shadow: inset 0 0 0 1px var(--line);
  font-size: 12px; color: var(--muted);
  max-width: 60%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.browser-body {
  height: clamp(440px, 78vh, 880px);
  overflow-y: auto; overscroll-behavior: contain;
  scrollbar-width: thin; scrollbar-color: var(--line-2) transparent;
}
.browser-body:focus-visible { outline: 2px solid var(--blue); outline-offset: -2px; }
.browser-body img { width: 100%; height: auto; display: block; }
.pd-hint { margin-top: 16px; text-align: center; color: var(--subtle); font-size: 12px; }

.pd-visual--art figure {
  display: grid; place-items: center;
  padding: clamp(24px, 5vw, 72px);
  border-radius: 28px;
  background:
    radial-gradient(70% 60% at 50% 100%, rgba(95, 240, 255, .25), transparent 70%),
    linear-gradient(160deg, #3a58ff 0%, var(--blue) 45%, var(--blue-deep) 100%);
}
.pd-visual--art img {
  width: 100%; max-width: 540px; height: auto;
  border-radius: 16px;
  box-shadow: 0 40px 80px -30px rgba(11, 13, 23, .5);
}

/* Hakkında ------------------------------------------------------------------ */
.pd-about {
  display: grid; grid-template-columns: 4fr 8fr; gap: clamp(32px, 6vw, 96px); align-items: start;
  padding-block: clamp(80px, 10vw, 152px);
}
.pd-text p { font-size: clamp(18px, 1.5vw, 22px); line-height: 1.6; color: var(--ink-2); }
.pd-text p + p { margin-top: 20px; }
.pd-text .btn { margin-top: 40px; }

/* Önceki / sonraki ---------------------------------------------------------- */
.pd-nav {
  display: grid; grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--ink);
  margin-bottom: clamp(80px, 10vw, 140px);
}
.pd-nav-item {
  position: relative;
  display: flex; flex-direction: column; gap: 10px;
  padding: 40px 0;
  transition: color .3s;
}
.pd-nav-item + .pd-nav-item { padding-left: 32px; border-left: 1px solid var(--line-2); }
.pd-nav-item .mono { color: var(--subtle); }
.pd-nav-item strong {
  font-family: var(--display); font-size: clamp(26px, 3.4vw, 52px); font-weight: 600; letter-spacing: -.04em; line-height: 1;
  transition: color .3s, transform .6s var(--ease);
}
.pd-nav-item small { font-size: 15px; color: var(--muted); }
.pd-nav-item:hover strong { color: var(--blue); }
.pd-nav-item--prev:hover strong { transform: translateX(-8px); }
.pd-nav-item--next { align-items: flex-end; text-align: right; }
.pd-nav-item--next:hover strong { transform: translateX(8px); }
.pd-nav-item img {
  width: 96px; aspect-ratio: 540 / 690; object-fit: cover;
  border-radius: 12px;
  margin-bottom: 8px;
  transition: transform .6s var(--ease);
}
.pd-nav-item--prev:hover img { transform: rotate(4deg) scale(1.04); }
.pd-nav-item--next:hover img { transform: rotate(-4deg) scale(1.04); }

/* Responsive ---------------------------------------------------------------- */
@media (max-width: 900px) {
  .pd-meta { grid-template-columns: 1fr 1fr; }
  .pd-meta > div:nth-child(3) { padding-left: 0; border-left: 0; }
  .pd-meta > div:nth-child(n+3) { margin-top: 20px; }
  .pd-about { grid-template-columns: 1fr; gap: 24px; }
}

@media (max-width: 640px) {
  .pd-top { flex-direction: row; }
  .browser { border-radius: 14px; }
  .browser-bar { height: 40px; padding: 0 12px; }
  .browser-bar .mono { max-width: 70%; }
  .browser-body { height: 70vh; }
  .pd-visual--art figure { border-radius: 20px; }
  .pd-nav { grid-template-columns: 1fr; }
  .pd-nav-item { padding: 28px 0; }
  .pd-nav-item + .pd-nav-item { padding-left: 0; border-left: 0; border-top: 1px solid var(--line-2); }
  .pd-nav-item--next { align-items: flex-start; text-align: left; }
  .pd-nav-item img { width: 72px; }
}