/* Datei: assets/css/index.css */
/* =============== Variablen & Basisfarben =============== */
:root {
  --ph-blue: #003c88;
  --ph-blue-600: #0b274d;
  --ph-pill: #eaf2ff;
  --ph-pill-strong: #d6e5fb;
  --ph-border: #b4c8e0;
  --ph-bg: #f7faff;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--ph-blue-600);
  background: var(--ph-bg);
}

/* =============== Header/Footer =============== */
.ph-header, .ph-footer { padding: 12px 14px; }
.ph-header h1 {
  font-size: 1.25rem;
  margin: 0 0 8px 0;
  font-weight: 700;
}
.ph-footer { text-align: center; color: #5c6f89; font-size: .9rem; }

/* =============== Tile Grid =============== */
.tile-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding: 12px;
}

.tile {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--ph-pill);
  border: 1px solid var(--ph-border);
  border-radius: 14px;
  padding: 16px;
  text-decoration: none;
  color: inherit;
  transition: background .15s ease, border-color .15s ease, transform .1s ease;
}
.tile:hover, .tile:focus {
  background: var(--ph-pill-strong);
  border-color: var(--ph-blue);
  transform: translateY(-2px);
}

.tile-header {
  display: flex;
  align-items: center;
  gap: 10px;
}
.tile-emoji {
  font-size: 1.5rem;
}
.tile-title {
  font-size: 1.1rem;
  font-weight: 800;
  margin: 0;
}

/* =============== Tablet/Desktop =============== */
@media (min-width: 720px) {
  .ph-header, .ph-footer { padding: 16px 22px; }
  .ph-header h1 { font-size: 1.5rem; }

  .tile-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    padding: 20px;
  }
  .tile-title { font-size: 1.25rem; }
}

/* =============== Dark Mode =============== */
@media (prefers-color-scheme: dark) {
  :root {
    --ph-blue: #8fbaff;
    --ph-blue-600: #d7e6ff;
    --ph-pill: #0e223e;
    --ph-pill-strong: #1a2d4b;
    --ph-border: #2d4a74;
    --ph-bg: #0a172b;
  }
  body { background: var(--ph-bg); color: var(--ph-blue-600); }

  .tile { background: var(--ph-pill); border-color: var(--ph-border); }
  .tile:hover { background: var(--ph-pill-strong); border-color: var(--ph-blue); }
}