/* ==========================================================================
   Rankeo — Base
   Reset, Grundtypografie, Layout-Grundgerüst (sidebar + topbar + content)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--text-base-lh);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; padding: 0; }
input, select, textarea { font-family: inherit; font-size: inherit; }

/* Browser-Autofill (v. a. Passwortfelder) ignoriert sonst unsere Theme-Farben und zeigt
   einen weißen/gelben Hintergrund, auch im Dark Mode — Fix erzwingt --color-surface. */
input:-webkit-autofill,
input:-webkit-autofill:hover,
input:-webkit-autofill:focus {
  -webkit-text-fill-color: var(--color-text);
  -webkit-box-shadow: 0 0 0 1000px var(--color-surface) inset;
  transition: background-color 5000s ease-in-out 0s;
}

.tabular-nums { font-variant-numeric: tabular-nums; }

:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

svg { display: block; }
.icon { width: 18px; height: 18px; flex-shrink: 0; }
.icon-sm { width: 14px; height: 14px; }
.icon-lg { width: 22px; height: 22px; }

/* ---- App shell ---- */
/* Nutzer-Vorgabe 04.09.2026: Topbar geht NICHT bis zum linken Seitenrand, sondern beginnt
   buendig mit der rechten Sidebar-Kante -- die Sidebar spannt daher beide Zeilen (volle Hoehe),
   die Topbar nur die Content-Spalte in Zeile 1. */
.app {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  grid-template-rows: var(--topbar-height) 1fr;
  grid-template-areas: "sidebar topbar" "sidebar main";
  min-height: 100vh;
}

.app.is-collapsed {
  grid-template-columns: var(--sidebar-width-collapsed) 1fr;
}

.main {
  grid-area: main;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.content {
  padding: var(--space-6);
  max-width: 1680px;
  width: 100%;
  margin: 0 auto;
}

/* ---- Page header ---- */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}

.page-title {
  font-size: var(--text-2xl);
  line-height: var(--text-2xl-lh);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.page-subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

.page-actions {
  display: flex;
  gap: var(--space-2);
  align-items: center;
}

/* ---- Grid system ---- */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-cols-12 { grid-template-columns: repeat(12, 1fr); }
.col-span-3 { grid-column: span 3; }
.col-span-4 { grid-column: span 4; }
.col-span-6 { grid-column: span 6; }
.col-span-8 { grid-column: span 8; }
.col-span-9 { grid-column: span 9; }
.col-span-12 { grid-column: span 12; }

@media (max-width: 1024px) {
  .app { grid-template-columns: 1fr; grid-template-areas: "topbar" "main"; }
  .col-span-3, .col-span-4, .col-span-6, .col-span-8, .col-span-9 { grid-column: span 12; }
}

@media (max-width: 640px) {
  .content { padding: var(--space-4); }
}