/* ==========================================================================
   LithophaneApp - Kurumsal Tema (Lacivert / Mavi / Beyaz) + Responsive
   ========================================================================== */

:root {
  --litho-navy-900: #0d1b3e;   /* en koyu lacivert - header/footer */
  --litho-navy-700: #16244f;   /* koyu lacivert - kartlar/nav */
  --litho-blue-600: #2563eb;   /* aksan mavi - butonlar/linkler */
  --litho-blue-500: #3b82f6;   /* hover */
  --litho-blue-100: #dbeafe;   /* açık mavi - arka plan vurgusu */
  --litho-gray-50: #f7f9fc;    /* sayfa arka planı */
  --litho-white: #ffffff;
  --litho-border: #e2e8f0;
  --litho-text: #1e293b;
}

html {
  font-size: 15px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

body {
  background-color: var(--litho-gray-50);
  color: var(--litho-text);
  margin-bottom: 60px;
  min-height: 100%;
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem var(--litho-blue-500);
}

/* ---- Navbar ---- */
.navbar.litho-navbar {
  background-color: var(--litho-navy-900) !important;
  box-shadow: 0 2px 8px rgba(13, 27, 62, 0.25);
}

.litho-navbar .navbar-brand,
.litho-navbar .nav-link {
  color: var(--litho-white) !important;
  font-weight: 500;
}

.litho-navbar .nav-link:hover {
  color: var(--litho-blue-100) !important;
}

.litho-navbar .navbar-toggler {
  border-color: rgba(255, 255, 255, 0.4);
}

/* ---- Butonlar ---- */
.btn-primary {
  background-color: var(--litho-blue-600);
  border-color: var(--litho-blue-600);
}
.btn-primary:hover, .btn-primary:focus {
  background-color: var(--litho-blue-500);
  border-color: var(--litho-blue-500);
}
.btn-success {
  background-color: #15803d;
  border-color: #15803d;
}
.btn-outline-secondary {
  color: var(--litho-navy-700);
  border-color: var(--litho-border);
}

/* ---- Kartlar / paneller ---- */
.litho-panel {
  background: var(--litho-white);
  border: 1px solid var(--litho-border);
  border-radius: 0.75rem;
  padding: 1.25rem;
  box-shadow: 0 1px 3px rgba(13, 27, 62, 0.06);
}

.litho-panel h1, .litho-panel h2, .litho-panel h5 {
  color: var(--litho-navy-900);
}

.litho-preview-box {
  background: var(--litho-white);
  border: 1px solid var(--litho-border);
  border-radius: 0.75rem;
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.litho-preview-box img {
  max-width: 100%;
  border-radius: 0.5rem;
}

.litho-badge-info {
  background-color: var(--litho-blue-100);
  color: var(--litho-navy-900);
  border-radius: 0.5rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.9rem;
}

/* ---- Responsive düzen ---- */
.litho-layout {
  display: grid;
  grid-template-columns: minmax(280px, 420px) 1fr;
  gap: 1.25rem;
  align-items: start;
}

@media (max-width: 900px) {
  .litho-layout {
    grid-template-columns: 1fr;
  }
}

.container {
  padding-top: 1rem;
}

@media (max-width: 576px) {
  .litho-panel {
    padding: 1rem;
    border-radius: 0.5rem;
  }
  h1.display-6 {
    font-size: 1.5rem;
  }
}

footer.litho-footer {
  background-color: var(--litho-navy-900);
  color: rgba(255, 255, 255, 0.75);
  padding: 0.75rem 0;
  text-align: center;
  font-size: 0.85rem;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
}