/* ============================================================
   LABİREND — Components: nav, butonlar, kartlar, chip'ler
   ============================================================ */

/* --- Konteyner --- */
.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 24px;
}

/* --- Eyebrow & bölüm başlıkları --- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.30em;
  text-transform: uppercase;
  color: var(--accent-gold);
}

.eyebrow::before {
  content: '';
  width: 34px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-gold));
}

.section-head {
  max-width: 720px;
  margin-bottom: clamp(44px, 7vw, 72px);
}

.section-head h2 {
  margin-top: 18px;
  font-size: clamp(32px, 4.6vw, 46px);
}

.section-head .lead {
  margin-top: 18px;
  font-size: 17px;
  color: var(--text-muted);
}

/* --- Butonlar --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition:
    transform var(--dur-fast) var(--ease-out),
    box-shadow var(--dur-fast) var(--ease-out),
    background-color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn .btn-arrow {
  transition: transform var(--dur-fast) var(--ease-out);
}

.btn:hover .btn-arrow {
  transform: translateX(4px);
}

.btn--gold {
  background: linear-gradient(135deg, var(--accent-gold-strong), var(--accent-gold) 55%, #A87B52);
  color: #14100B;
  font-weight: 600;
  box-shadow: 0 10px 28px rgba(196, 149, 106, 0.22);
}

.btn--gold:hover {
  box-shadow: 0 14px 34px rgba(196, 149, 106, 0.32);
}

.btn--ghost {
  border-color: var(--line-strong);
  color: var(--text-primary);
  backdrop-filter: blur(6px);
}

.btn--ghost:hover {
  border-color: rgba(57, 208, 255, 0.55);
  color: var(--accent-cyan);
  background: var(--accent-cyan-soft);
}

/* --- Kart temeli --- */
.card {
  position: relative;
  background: linear-gradient(165deg, var(--surface), var(--bg-deep) 78%);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  transition:
    transform var(--dur-mid) var(--ease-out),
    border-color var(--dur-mid) var(--ease-out),
    box-shadow var(--dur-mid) var(--ease-out);
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(57, 208, 255, 0.35);
  box-shadow: 0 18px 42px rgba(2, 8, 11, 0.55);
}

/* --- Chip / badge --- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(19, 40, 49, 0.65);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  transition:
    border-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out);
}

.chip:hover {
  border-color: rgba(196, 149, 106, 0.5);
  color: var(--accent-gold-strong);
}

.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid rgba(196, 149, 106, 0.35);
  background: var(--accent-gold-soft);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-gold);
}

/* --- Navigasyon --- */
.site-nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition:
    background-color var(--dur-mid) var(--ease-out),
    border-color var(--dur-mid) var(--ease-out),
    backdrop-filter var(--dur-mid) var(--ease-out);
}

.site-nav.is-scrolled {
  background: rgba(11, 22, 27, 0.74);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
}

.nav-inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 13px;
}

.nav-brand img {
  width: 42px;
  height: 42px;
  object-fit: contain;
  filter: drop-shadow(0 0 14px rgba(57, 208, 255, 0.25));
}

.nav-brand span {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav-links a {
  position: relative;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding-block: 6px;
  transition: color var(--dur-fast) var(--ease-out);
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1.5px;
  background: linear-gradient(90deg, var(--accent-gold), var(--accent-cyan));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-mid) var(--ease-out);
}

.nav-links a:hover,
.nav-links a.is-active {
  color: var(--text-primary);
}

.nav-links a.is-active::after,
.nav-links a:hover::after {
  transform: scaleX(1);
}

.nav-cta {
  padding: 10px 22px !important;
  font-size: 13.5px !important;
}

.nav-links a.btn--gold,
.nav-links a.btn--gold:hover {
  color: #14100B;
}

.nav-links a.btn--gold::after {
  display: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: 10px;
}

.nav-toggle span {
  display: block;
  height: 1.5px;
  width: 100%;
  background: var(--text-primary);
  border-radius: 2px;
  transition:
    transform var(--dur-mid) var(--ease-out),
    opacity var(--dur-fast) var(--ease-out);
}

.site-nav.is-open .nav-toggle span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.site-nav.is-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}

.site-nav.is-open .nav-toggle span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobil panel */
@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
  }

  .nav-panel {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    z-index: 99;
    display: grid;
    gap: 6px;
    padding: 20px 24px 30px;
    background: rgba(11, 22, 27, 0.96);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--line);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition:
      transform var(--dur-mid) var(--ease-out),
      opacity var(--dur-mid) var(--ease-out),
      visibility 0s linear var(--dur-mid);
  }

  .site-nav.is-open + .nav-panel,
  body.nav-open .nav-panel {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition-delay: 0s;
  }

  .nav-panel a {
    padding: 13px 6px;
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--line);
    transition: color var(--dur-fast) var(--ease-out);
  }

  .nav-panel a:last-child {
    border-bottom: none;
  }

  .nav-panel a:hover,
  .nav-panel a.is-active {
    color: var(--accent-gold-strong);
  }
}

@media (min-width: 901px) {
  .nav-panel {
    display: none;
  }
}

/* --- Zaman çizelgesi --- */
.timeline {
  position: relative;
  padding-left: 34px;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 6px;
  bottom: 6px;
  left: 7px;
  width: 1px;
  background: linear-gradient(
    180deg,
    transparent,
    var(--line-strong) 8%,
    var(--line-strong) 92%,
    transparent
  );
}

.timeline-item {
  position: relative;
  padding-bottom: 34px;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: '';
  position: absolute;
  top: 8px;
  left: -31px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--bg-base);
  border: 2px solid var(--accent-gold);
  box-shadow: 0 0 12px rgba(196, 149, 106, 0.45);
}

.timeline-period {
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-cyan);
}

.timeline-item h3 {
  margin: 8px 0 6px;
  font-size: 19px;
}

.timeline-item p {
  font-size: 14.5px;
  color: var(--text-muted);
  max-width: 56ch;
}

/* --- Proje kartları --- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 18px;
}

.project-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 22px;
}

.project-card .card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.project-icon {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 14px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  overflow: hidden;
}

.project-icon img {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.project-icon--mono span {
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent-cyan);
}

.project-card h3 {
  font-size: 18.5px;
  font-family: var(--font-body);
  font-weight: 600;
  letter-spacing: 0.01em;
}

.project-card p {
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--text-muted);
}

.project-card .card-foot {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-faint);
  transition: color var(--dur-fast) var(--ease-out);
}

.project-card .card-foot .arr {
  transition: transform var(--dur-fast) var(--ease-out);
}

.project-card:hover .card-foot {
  color: var(--accent-cyan);
}

.project-card:hover .card-foot .arr {
  transform: translateX(4px);
}

/* --- Makale kartları --- */
.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.article-card {
  padding: 30px 26px 26px;
  overflow: hidden;
}

.article-num {
  position: absolute;
  top: -14px;
  right: 8px;
  font-family: var(--font-display);
  font-size: 96px;
  font-weight: 700;
  line-height: 1;
  color: rgba(57, 208, 255, 0.07);
  user-select: none;
}

.article-card h3 {
  position: relative;
  font-size: 21px;
  max-width: 22ch;
}

.article-card p {
  position: relative;
  margin-top: 12px;
  font-size: 14px;
  color: var(--text-muted);
}

.article-card .soon {
  margin-top: 22px;
}