/* ==========================================================================
 * BRAND TOKENS — productful CI
 * --------------------------------------------------------------------------
 * Hellfarbenes Layout, Akzentfarbe in productful-Blau. Alle Farben/Schriften
 * werden ausschließlich über diese Variablen bezogen. Feinjustierung erfolgt
 * ausschließlich hier.
 * ========================================================================== */
:root {
  /* Primärfarbe */
  --brand-primary: #1e88e5;          /* productful Button-Blau (geschätzt) */
  --brand-primary-hover: #1976d2;
  --brand-on-primary: #ffffff;
  --brand-accent: #5fb3e8;            /* helleres Blau für Links/Akzente */

  /* Hintergründe */
  --bg: #ffffff;
  --panel: #ffffff;
  --panel-2: #f5f7fa;

  /* Schrift */
  --text: #0f172a;
  --muted: #64748b;
  --font-sans: -apple-system, BlinkMacSystemFont, "Inter",
               "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* Border, Shadow */
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .05);
  --shadow: 0 6px 24px rgba(15, 23, 42, .06);

  /* Status */
  --removed: #dc2626;
  --added: #16a34a;
  --warn: #b45309;

  /* Layout */
  --radius: 12px;
  --radius-sm: 8px;
  --max-w: 1040px;
}

/* ==========================================================================
 * Reset & Grundlayout
 * ========================================================================== */
* { box-sizing: border-box; }
html, body { height: 100%; }

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main { flex: 1; }

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.25rem;
  width: 100%;
}

main .wrap { padding-top: 2.25rem; padding-bottom: 3.5rem; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--brand-primary);
  color: var(--brand-on-primary);
  padding: .5rem 1rem;
  z-index: 1000;
}
.skip-link:focus { left: 1rem; top: 1rem; }

a { color: var(--brand-primary); text-decoration: none; }
a:hover { color: var(--brand-primary-hover); text-decoration: underline; }

/* ==========================================================================
 * Topbar / Footer
 * ========================================================================== */
.topbar {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
}
.logo { display: inline-flex; align-items: center; text-decoration: none; }
.logo-svg { height: 32px; width: auto; }
.logo-mark { fill: var(--text); stroke: var(--text); }
.logo-text {
  fill: var(--text);
  font-family: var(--font-sans);
  font-size: 38px;
  font-weight: 800;
  letter-spacing: -.035em;
}

.topnav { display: flex; gap: 1.5rem; }
.navlink {
  color: var(--muted);
  text-decoration: none;
  font-size: .92rem;
  font-weight: 500;
}
.navlink:hover { color: var(--brand-primary); text-decoration: none; }

.footer {
  background: var(--panel-2);
  border-top: 1px solid var(--border);
  margin-top: auto;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1.25rem;
  padding-bottom: 1.25rem;
  flex-wrap: wrap;
  gap: .75rem;
}
.footer-brand { color: var(--muted); font-size: .85rem; }
.footer-nav { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: .85rem;
}
.footer-nav a:hover { color: var(--brand-primary); }

/* ==========================================================================
 * Typografie
 * ========================================================================== */
h1 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -.02em;
  margin: 0 0 .4rem;
}
h2 { font-size: 1.15rem; margin: 1.5rem 0 .4rem; font-weight: 700; }

.lede { color: var(--muted); margin: 0 0 2rem; font-size: 1.02rem; }

.note { margin-top: 1.5rem; color: var(--muted); font-size: .85rem; }

/* ==========================================================================
 * Karten, Formulare, Buttons
 * ========================================================================== */
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
}

.drops {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 640px) { .drops { grid-template-columns: 1fr; } }

.drop {
  position: relative;
  background: var(--panel-2);
  border: 1.5px dashed var(--border-strong);
  border-radius: 10px;
  padding: 1.6rem 1rem;
  text-align: center;
  transition: border-color .15s, background .15s;
}
.drop.filled { border-style: solid; border-color: var(--brand-primary); background: #eef6fd; }
.drop:hover { border-color: var(--brand-primary); }
.drop input[type=file] { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.drop .label { font-weight: 600; color: var(--text); }
.drop .hint { color: var(--muted); font-size: .85rem; margin-top: .25rem; }
.drop .fname { margin-top: .5rem; font-size: .85rem; color: var(--brand-primary); word-break: break-all; font-weight: 500; }

.row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}
label.field { color: var(--muted); font-size: .9rem; font-weight: 500; }
label.check {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .9rem;
  cursor: pointer;
  flex-wrap: wrap;
  color: var(--text);
}
label.check.disabled { opacity: .45; cursor: not-allowed; }
label.check .check-hint { color: var(--muted); font-size: .8rem; }

select, button, .btn {
  font: inherit;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  padding: .55rem .85rem;
}
select {
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
}
select:hover { border-color: var(--brand-primary); }

button, .btn.primary {
  background: var(--brand-primary);
  color: var(--brand-on-primary);
  border-color: var(--brand-primary);
  font-weight: 600;
  cursor: pointer;
  padding: .65rem 1.5rem;
  text-decoration: none;
  display: inline-block;
  box-shadow: 0 1px 2px rgba(30, 136, 229, .25);
}
button { margin-left: auto; }
button:disabled { opacity: .5; cursor: not-allowed; box-shadow: none; }
button:hover:not(:disabled), .btn.primary:hover {
  background: var(--brand-primary-hover);
  border-color: var(--brand-primary-hover);
  color: var(--brand-on-primary);
  text-decoration: none;
}

.btn.ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
  text-decoration: none;
  padding: .65rem 1.25rem;
  font-weight: 500;
}
.btn.ghost:hover { border-color: var(--brand-primary); color: var(--brand-primary); }

/* ==========================================================================
 * Index-spezifische Sektionen
 * ========================================================================== */
.error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
  border-radius: var(--radius-sm);
  padding: .8rem 1rem;
  margin-bottom: 1.5rem;
}

.form-disclaimer {
  margin: 1.5rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: .8rem;
  line-height: 1.6;
}

.info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-top: 1.75rem;
}
@media (max-width: 720px) { .info { grid-template-columns: 1fr; } }

.info-col {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.35rem;
  box-shadow: var(--shadow-sm);
}
.info-title { font-size: 1rem; margin: 0 0 .5rem; font-weight: 700; }
.info-title.ok { color: var(--added); }
.info-title.warn { color: var(--warn); }
.info ul { margin: 0; padding-left: 1.1rem; color: var(--muted); }
.info li { margin: .3rem 0; }
.info li strong { color: var(--text); }

/* ==========================================================================
 * Result-Seite
 * ========================================================================== */
.summary {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}
.stat {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: .9rem 1.2rem;
  min-width: 140px;
  box-shadow: var(--shadow-sm);
}
.stat .k { color: var(--muted); font-size: .8rem; font-weight: 500; }
.stat .v { font-size: 1.45rem; font-weight: 700; color: var(--text); }
.stat .v.small { font-size: 1rem; font-weight: 600; }
.stat .v.removed { color: var(--removed); }
.stat .v.added { color: var(--added); }

.actions {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.actions .hint { color: var(--muted); font-size: .8rem; }

.legend {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
  font-size: .9rem;
  color: var(--muted);
}
.swatch {
  display: inline-block;
  width: 14px;
  height: 14px;
  border-radius: 3px;
  margin-right: .4rem;
  vertical-align: -2px;
}
.sw-removed { background: var(--removed); }
.sw-added { background: var(--added); }
.sw-common { background: #94a3b8; }

.page {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow-sm);
}
.page-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: .75rem;
  flex-wrap: wrap;
  gap: .5rem;
}
.page-head .title { font-weight: 600; color: var(--text); }
.badge {
  font-size: .75rem;
  padding: .15rem .6rem;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  color: var(--muted);
  font-weight: 500;
}
.badge.changed { color: var(--warn); border-color: #fcd9a4; background: #fffbeb; }
.badge.ok { color: var(--added); border-color: #bbf7d0; background: #f0fdf4; }

.page img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-sm);
  background: #fff;
  border: 1px solid var(--border);
}

.text-diff {
  margin-top: .9rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 640px) { .text-diff { grid-template-columns: 1fr; } }

.text-col { background: var(--panel-2); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: .7rem .9rem; }
.text-label { font-size: .78rem; font-weight: 700; margin-bottom: .4rem; text-transform: uppercase; letter-spacing: .03em; }
.text-label.removed { color: var(--removed); }
.text-label.added { color: var(--added); }
.text-col ul { margin: 0; padding-left: 1.1rem; }
.text-col li { font-size: .85rem; margin: .15rem 0; color: var(--text); }
.text-col li.more { color: var(--muted); list-style: none; margin-left: -1.1rem; }
.text-col code {
  background: rgba(15, 23, 42, .05);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: .85em;
  font-family: var(--font-mono);
  color: var(--text);
}

/* ==========================================================================
 * Legal pages (Impressum, Datenschutz, Nutzungsbedingungen)
 * ========================================================================== */
.legal {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem 2rem;
  max-width: 760px;
  box-shadow: var(--shadow-sm);
}
.legal h2 { color: var(--text); }
.legal p, .legal li { color: var(--text); }
.legal p { line-height: 1.65; }
.legal strong { color: var(--text); }
.legal ul { padding-left: 1.2rem; }
.legal-meta { color: var(--muted); font-size: .8rem; margin-top: 1.5rem; }