:root {
  /* Pantone 2757 C - kurumsal lacivert */
  --brand-50: #eef0f7;
  --brand-100: #d7dcea;
  --brand-200: #b0bad3;
  --brand-300: #8794b8;
  --brand-400: #5d6d9c;
  --brand-500: #3e4f80;
  --brand-600: #2b3a68;
  --brand-700: #212c55;
  --brand-800: #1a2243;
  --brand-900: #131930;
  /* Pantone 185 C - kurumsal kırmızı */
  --accent-500: #e4002b;
  --accent-600: #c50025;
  --background: #f5f6fa;
  --foreground: #131930;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Noto Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--background);
  color: var(--foreground);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

img { max-width: 100%; }

a { color: inherit; text-decoration: none; }

::selection { background: var(--brand-200); }

.container {
  margin-inline: auto;
  width: 100%;
  max-width: 72rem;
  padding-inline: 1.25rem;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgb(226 232 240 / 0.7);
  background: rgb(255 255 255 / 0.8);
  backdrop-filter: blur(8px);
}

.brand-stripe { display: flex; height: 4px; }
.stripe-navy { flex: 1; background: var(--brand-700); }
.stripe-red { width: 5rem; background: var(--accent-500); }

.header-inner {
  display: flex;
  height: 4rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand { display: flex; align-items: center; gap: 0.625rem; min-width: 0; }
.brand-logo { height: 2rem; width: 2rem; object-fit: contain; }
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-uni { font-size: 0.625rem; font-weight: 500; color: var(--brand-700); }
.brand-title { font-size: 0.875rem; font-weight: 600; color: #0f172a; }

.header-actions { display: flex; align-items: center; gap: 0.5rem; flex-shrink: 0; }

.main-nav { display: none; align-items: center; gap: 0.25rem; }
.main-nav.open {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  position: absolute;
  top: calc(4rem + 4px);
  left: 0;
  right: 0;
  background: #fff;
  border-bottom: 1px solid rgb(226 232 240 / 0.7);
  padding: 0.5rem 1.25rem 0.75rem;
}

.nav-link {
  border-radius: 9999px;
  padding: 0.5rem 0.875rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: #475569;
  transition: background 0.15s, color 0.15s;
}
.nav-link:hover { background: #f1f5f9; color: #0f172a; }
.nav-link.active { background: var(--brand-50); color: var(--brand-700); }

.lang-toggle,
.menu-toggle {
  height: 2.5rem;
  border: 1px solid #e2e8f0;
  border-radius: 0.75rem;
  background: #fff;
  color: #334155;
  font: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
}
.lang-toggle { padding: 0 0.875rem; }
.lang-toggle:hover, .menu-toggle:hover { background: #f8fafc; }
.menu-toggle { width: 2.5rem; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; }
.menu-bar { width: 18px; height: 2px; background: currentColor; border-radius: 1px; }

@media (min-width: 768px) {
  .main-nav { display: flex; }
  .menu-toggle { display: none; }
}

/* ---------- Home ---------- */

.home-grid {
  display: flex;
  justify-content: center;
  padding-block: 3rem;
  flex: 1;
}

.home-left { width: 100%; max-width: 36rem; }

.home-logo { display: block; width: 100%; max-width: 28rem; margin: 0 auto 2.5rem; height: auto; }

.link-list { display: flex; flex-direction: column; gap: 0.75rem; }

.link-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 1rem;
  padding: 1rem 1.25rem;
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}
.link-card:hover { border-color: var(--brand-200); box-shadow: 0 4px 16px rgb(19 25 48 / 0.08); transform: translateY(-1px); }

.link-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 0.875rem;
  flex-shrink: 0;
}
.link-icon svg { width: 1.375rem; height: 1.375rem; }
.link-icon.ig { background: #fdeaee; color: var(--accent-600); }
.link-icon.wa { background: #e7f7ee; color: #1a9e4b; }

.link-body { display: flex; flex-direction: column; gap: 0.125rem; min-width: 0; }
.link-title { font-weight: 600; color: #0f172a; }
.link-desc { font-size: 0.875rem; color: #64748b; }

.link-card-lg { padding: 1.375rem 1.5rem; }
.link-card-lg .link-icon { width: 3.5rem; height: 3.5rem; border-radius: 1.125rem; }
.link-card-lg .link-icon svg { width: 1.875rem; height: 1.875rem; }
.link-card-lg .link-title { font-size: 1.125rem; }
.link-card-lg .link-desc { font-size: 0.9375rem; }

/* ---------- Press kit ---------- */

.press-hero {
  border-bottom: 1px solid rgb(226 232 240 / 0.7);
  background: linear-gradient(180deg, #fff, var(--brand-50));
  padding: 3rem 0;
}
.press-eyebrow { margin: 0; font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; color: var(--brand-600); }
.press-title { margin: 0.5rem 0 0; font-size: 1.875rem; font-weight: 700; letter-spacing: -0.02em; }
.press-desc { margin: 0.75rem 0 0; max-width: 42rem; line-height: 1.6; color: #475569; }

.press-grid {
  display: grid;
  gap: 1.5rem;
  padding-block: 3rem;
}
@media (min-width: 640px) { .press-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

.press-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 1rem;
  padding: 1.25rem;
}

.press-preview {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 11rem;
  background: #f8fafc;
  border-radius: 0.75rem;
  padding: 1.5rem;
}
.press-preview.dark { background: var(--brand-900); }
.press-preview img { max-height: 100%; width: auto; object-fit: contain; }

.press-body {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1rem;
}
.press-body h2 { margin: 0; font-size: 1rem; font-weight: 600; }
.press-body p { margin: 0.125rem 0 0; font-size: 0.875rem; color: #64748b; }

.press-download {
  flex-shrink: 0;
  background: var(--brand-600);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 0.75rem;
  padding: 0.625rem 1rem;
  transition: background 0.15s;
}
.press-download:hover { background: var(--brand-700); }

/* ---------- Footer ---------- */

.site-footer { margin-top: auto; background: var(--brand-900); color: #cbd5e1; }

.footer-bottom-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding-block: 0.875rem;
  font-size: 0.6875rem;
  color: #64748b;
  text-align: center;
}
.footer-links { display: flex; align-items: center; gap: 0.5rem; }
.footer-links a:hover { color: #cbd5e1; }

@media (min-width: 640px) {
  .footer-bottom-inner { flex-direction: row; justify-content: space-between; text-align: left; }
}