/* ============================================================
   Birlikte İyilik Akademi — Layout CSS
   Container, grid, navigation, footer
   ============================================================ */

/* ── Container ── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--s-6);
}

.container-narrow { max-width: 800px; }
.container-wide { max-width: 1400px; }

/* ── Section ── */
.section {
  padding: var(--s-20) 0;
}
.section-sm { padding: var(--s-12) 0; }
.section-lg { padding: var(--s-24) 0; }

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--s-12);
}
.section-header p {
  font-size: 1.05rem;
  color: var(--color-text-muted);
}

/* ── Grid ── */
.grid { display: grid; gap: var(--s-6); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ── Navigation ── */
.site-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: #E20439;
  border-bottom: 1px solid rgba(0,0,0,0.1);
  transition: var(--transition);
}
.site-nav.scrolled {
  box-shadow: 0 2px 20px rgba(0,0,0,0.2);
}

.nav-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--s-3) var(--s-6);
}

.nav-logo {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none;
}
.nav-logo img, .nav-logo-img { height: 36px; filter: brightness(0) invert(1); }
.nav-logo-name {
  font-family: var(--font-sans); font-weight: 700;
  color: #fff; font-size: 13px;
  letter-spacing: .06em; text-transform: uppercase; white-space: nowrap;
}

.nav-menu { display: flex; align-items: center; gap: var(--s-1); }

.nav-item {
  position: relative;
}

.nav-link {
  display: block; padding: var(--s-2) var(--s-3);
  color: rgba(255,255,255,0.88); font-size: 14px; font-weight: 500;
  border-radius: var(--radius-sm); transition: var(--transition);
  text-decoration: none;
}
.nav-link:hover, .nav-link[aria-current="page"] {
  color: #fff; background: rgba(255,255,255,0.15);
}

/* Dropdown */
.nav-dropdown {
  display: none; position: absolute; top: 100%; left: 0;
  background: white; border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg); padding: var(--s-2);
  min-width: 220px; z-index: 100;
  border: 1px solid var(--color-border-light);
}
.nav-item:hover .nav-dropdown,
.nav-item:focus-within .nav-dropdown { display: block; }

.nav-dropdown a {
  display: block; padding: var(--s-2) var(--s-3);
  color: var(--color-text-secondary); font-size: 13px;
  border-radius: var(--radius-sm); transition: var(--transition);
}
.nav-dropdown a:hover { color: var(--color-primary); background: var(--color-primary-light); }

/* Nav CTA */
.nav-cta {
  display: flex; gap: var(--s-2); margin-left: var(--s-4);
}
/* Nav butonları kırmızı zemin üzerinde beyaz görünüm */
.site-nav .btn-primary {
  background: #fff; color: #E20439; border-color: #fff;
}
.site-nav .btn-primary:hover {
  background: rgba(255,255,255,0.88); border-color: rgba(255,255,255,0.88); color: #E20439;
}
.site-nav .btn-secondary {
  background: transparent; color: #fff; border-color: rgba(255,255,255,0.7);
}
.site-nav .btn-secondary:hover {
  background: rgba(255,255,255,0.15); border-color: #fff; color: #fff;
}

/* Hamburger */
.hamburger {
  display: none; padding: var(--s-2); background: none; border: none; cursor: pointer;
}
.hamburger span {
  display: block; width: 22px; height: 2px;
  background: #fff; margin: 5px 0;
  transition: var(--transition); border-radius: 2px;
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Mobile Nav */
@media (max-width: 1024px) {
  .hamburger { display: block; }
  .nav-menu {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    background: #E20439; flex-direction: column; padding: var(--s-4);
    border-top: 1px solid rgba(255,255,255,0.2);
    box-shadow: 0 8px 24px rgba(0,0,0,0.15); gap: 0;
  }
  .nav-menu.open { display: flex; }
  .nav-item { width: 100%; }
  .nav-link { padding: var(--s-3) var(--s-4); color: rgba(255,255,255,0.9); }
  .nav-dropdown {
    position: static; box-shadow: none; border: none;
    padding: 0 0 0 var(--s-4); display: none;
  }
  .nav-item.open .nav-dropdown { display: block; }
  .nav-cta {
    margin: var(--s-4) 0 0; width: 100%;
    flex-direction: column;
  }
  .nav-cta .btn { width: 100%; text-align: center; }
}

/* ── Breadcrumb ── */
.breadcrumb {
  padding: var(--s-4) 0;
  font-size: 13px;
}
.breadcrumb ol {
  display: flex; flex-wrap: wrap; gap: var(--s-1);
  align-items: center;
}
.breadcrumb li::after { content: '/'; color: var(--color-text-muted); margin-left: var(--s-1); }
.breadcrumb li:last-child::after { display: none; }
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb span { color: var(--color-text-secondary); }

/* ── Footer ── */
.site-footer {
  background: var(--color-text);
  color: rgba(255,255,255,0.7);
  padding: var(--s-16) 0 var(--s-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr repeat(4, 1fr);
  gap: var(--s-8);
  margin-bottom: var(--s-12);
}

.footer-brand img { height: 48px; margin-bottom: var(--s-4); filter: brightness(0) invert(1); }
.footer-brand p { font-size: 14px; line-height: 1.6; color: rgba(255,255,255,0.5); }

.footer-col h4 {
  font-family: var(--font-sans);
  color: white; font-size: 14px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.05em;
  margin-bottom: var(--s-4);
}

.footer-col a {
  display: block; color: rgba(255,255,255,0.6);
  font-size: 14px; padding: var(--s-1) 0;
  transition: var(--transition);
}
.footer-col a:hover { color: white; }

.footer-social {
  display: flex; gap: var(--s-3); margin-top: var(--s-4);
}
.footer-social a {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.7);
  transition: var(--transition);
  font-size: 18px;
}
.footer-social a:hover { background: var(--color-primary); color: white; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--s-6);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: white; }

@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: var(--s-2); text-align: center; }
}

/* ── Page content offset for fixed nav ── */
main { padding-top: 72px; }

/* ── Sticky Mobile CTA ── */
.mobile-cta {
  display: none; position: fixed; bottom: 0; left: 0; right: 0;
  background: white; padding: var(--s-3) var(--s-4);
  box-shadow: 0 -2px 20px rgba(0,0,0,0.1);
  z-index: 999;
  gap: var(--s-2);
}
@media (max-width: 640px) {
  .mobile-cta { display: flex; }
  .site-footer { padding-bottom: 80px; }
}