/* ============================================================================
   Design-System – ruhig, hochwertig, viel Weißraum, wenige Farben (§23)
   ============================================================================ */

:root {
  --color-bg: #fafaf9;
  --color-surface: #ffffff;
  --color-border: #e5e3df;
  --color-text: #1c1b19;
  --color-text-muted: #6b6863;
  --color-primary: #16302b;
  --color-primary-contrast: #ffffff;
  --color-accent: #b5763a;
  --color-accent-soft: #f5ece1;
  --color-success: #2f6d4f;
  --color-danger: #b5453a;
  --color-danger-soft: #fbeceb;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-card: 0 1px 2px rgba(20, 20, 18, 0.04), 0 4px 16px rgba(20, 20, 18, 0.05);
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --maxw: 1180px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: 'Inter', 'Segoe UI', Roboto, -apple-system, BlinkMacSystemFont, sans-serif;
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}
h1, h2, h3, h4 { font-weight: 650; letter-spacing: -0.01em; margin: 0 0 var(--space-2); }
h1 { font-size: 1.5rem; }
h2 { font-size: 1.2rem; }
h3 { font-size: 1rem; }
p { margin: 0 0 var(--space-3); color: var(--color-text-muted); }
button { font-family: inherit; }
img { max-width: 100%; display: block; }

/* ---- Layout ------------------------------------------------------------ */
.app-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}
.app-header .brand { display: flex; align-items: center; gap: var(--space-2); font-weight: 700; font-size: 1.05rem; }
.app-header .brand .logo-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--color-accent); }
.app-header a.admin-link { font-size: 0.8rem; color: var(--color-text-muted); text-decoration: none; }

.app-shell {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: var(--space-5);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  padding-bottom: 140px; /* Platz für sticky Preisleiste mobil */
}

@media (min-width: 900px) {
  .app-shell { grid-template-columns: minmax(0, 1.6fr) minmax(320px, 1fr); align-items: start; padding-bottom: var(--space-7); }
  .price-panel { position: sticky; top: 96px; }
}

.main-column { min-width: 0; }

/* ---- Step Nav ------------------------------------------------------------ */
.step-nav {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-5);
  scrollbar-width: none;
}
.step-nav::-webkit-scrollbar { display: none; }
.step-nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: 999px;
  font-size: 0.82rem;
  white-space: nowrap;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  flex-shrink: 0;
}
.step-nav-item .num {
  width: 20px; height: 20px; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--color-border); color: var(--color-text); font-size: 0.72rem; font-weight: 700;
}
.step-nav-item.active { border-color: var(--color-primary); color: var(--color-primary); font-weight: 650; }
.step-nav-item.active .num { background: var(--color-primary); color: var(--color-primary-contrast); }
.step-nav-item.done .num { background: var(--color-success); color: #fff; }

/* ---- Cards / Panels ------------------------------------------------------ */
.panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-card);
  margin-bottom: var(--space-5);
}
.panel-header { margin-bottom: var(--space-4); }
.panel-header .eyebrow { color: var(--color-accent); font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: var(--space-1); }

/* ---- Auswahlkarten (Produkt/Material/Optionen) ---------------------------- */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: var(--space-3); }
.option-card {
  text-align: left;
  cursor: pointer;
  border: 1.5px solid var(--color-border);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  min-height: 84px;
  transition: border-color 0.12s ease, background 0.12s ease;
}
.option-card:hover { border-color: #cfcac0; }
.option-card.selected { border-color: var(--color-primary); background: #f4f6f5; box-shadow: 0 0 0 1px var(--color-primary) inset; }
.option-card .icon { font-size: 1.6rem; }
.option-card .title { font-weight: 650; font-size: 0.98rem; }
.option-card .desc { color: var(--color-text-muted); font-size: 0.84rem; }
.option-card .price-hint { color: var(--color-accent); font-size: 0.8rem; font-weight: 650; margin-top: auto; }

.chip-row { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.chip {
  border: 1.5px solid var(--color-border);
  background: var(--color-surface);
  border-radius: 999px;
  padding: 10px 16px;
  font-size: 0.88rem;
  cursor: pointer;
  min-height: 44px;
  display: inline-flex; align-items: center; gap: 6px;
}
.chip.selected { border-color: var(--color-primary); background: var(--color-primary); color: var(--color-primary-contrast); font-weight: 600; }
.chip .desc { display: block; font-size: 0.72rem; opacity: 0.75; }

/* ---- Formulare ------------------------------------------------------------ */
.field { margin-bottom: var(--space-4); }
.field label { display: block; font-size: 0.85rem; font-weight: 650; margin-bottom: var(--space-2); }
.field .hint { font-size: 0.78rem; color: var(--color-text-muted); margin-top: var(--space-1); }
.field input[type="text"],
.field input[type="number"],
.field input[type="email"],
.field input[type="tel"],
.field select,
.field textarea {
  width: 100%;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 1rem;
  min-height: 48px;
  background: var(--color-surface);
  color: var(--color-text);
  font-family: inherit;
}
.field textarea { min-height: 96px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--color-primary); outline-offset: 1px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.field-row.with-unit { grid-template-columns: 1fr 1fr 90px; align-items: end; }
@media (max-width: 480px) { .field-row.with-unit { grid-template-columns: 1fr 1fr; } .field-row.with-unit .unit-field { grid-column: 1 / -1; } }

.area-display {
  background: var(--color-accent-soft);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-top: var(--space-3);
}
.area-display .label { font-size: 0.85rem; color: var(--color-text-muted); }
.area-display .value { font-size: 1.3rem; font-weight: 700; }

.stepper { display: flex; align-items: center; gap: var(--space-3); }
.stepper button {
  width: 48px; height: 48px; border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border); background: var(--color-surface);
  font-size: 1.3rem; cursor: pointer; color: var(--color-text);
}
.stepper input { text-align: center; max-width: 100px; }
.qty-presets { display: flex; gap: var(--space-2); flex-wrap: wrap; margin-top: var(--space-3); }

/* ---- Buttons ------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border-radius: var(--radius-sm);
  padding: 14px 22px;
  font-size: 1rem;
  font-weight: 650;
  cursor: pointer;
  border: 1.5px solid transparent;
  min-height: 50px;
}
.btn-primary { background: var(--color-primary); color: var(--color-primary-contrast); }
.btn-primary:hover { opacity: 0.92; }
.btn-primary:disabled { background: #cbd0ce; cursor: not-allowed; }
.btn-secondary { background: var(--color-surface); color: var(--color-text); border-color: var(--color-border); }
.btn-block { width: 100%; }
.btn-text { background: none; border: none; color: var(--color-text-muted); font-weight: 600; cursor: pointer; padding: 8px 4px; }

.nav-buttons { display: flex; justify-content: space-between; gap: var(--space-3); margin-top: var(--space-5); }

/* ---- Upload --------------------------------------------------------------- */
.dropzone {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-7) var(--space-4);
  text-align: center;
  cursor: pointer;
  background: #fdfdfc;
}
.dropzone.dragover { border-color: var(--color-primary); background: var(--color-accent-soft); }
.dropzone .upload-icon { font-size: 2.2rem; margin-bottom: var(--space-2); }
.dropzone .formats { font-size: 0.76rem; color: var(--color-text-muted); margin-top: var(--space-2); }

.file-preview { display: flex; gap: var(--space-4); align-items: flex-start; padding: var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-md); background: var(--color-surface); }
.file-preview .thumb { width: 96px; height: 96px; border-radius: var(--radius-sm); background: var(--color-accent-soft); display: flex; align-items: center; justify-content: center; overflow: hidden; flex-shrink: 0; font-size: 1.8rem; }
.file-preview .thumb img { width: 100%; height: 100%; object-fit: contain; }
.file-preview .meta { flex: 1; min-width: 0; }
.file-preview .filename { font-weight: 650; word-break: break-word; }
.file-preview .details { font-size: 0.82rem; color: var(--color-text-muted); margin-top: var(--space-1); }
.file-preview .actions { display: flex; gap: var(--space-2); margin-top: var(--space-3); }

.motif-preview { border: 1px solid var(--color-border); border-radius: var(--radius-md); background: repeating-conic-gradient(#f1efec 0% 25%, #fff 0% 50%) 0 0/16px 16px; display: flex; align-items: center; justify-content: center; margin-top: var(--space-3); min-height: 120px; overflow: hidden; }
.motif-preview img { max-height: 240px; }

.alert { border-radius: var(--radius-sm); padding: var(--space-3) var(--space-4); font-size: 0.88rem; margin-bottom: var(--space-3); }
.alert-error { background: var(--color-danger-soft); color: var(--color-danger); }
.alert-info { background: var(--color-accent-soft); color: #6b4a24; }

.field-error { color: var(--color-danger); font-size: 0.8rem; margin-top: 4px; }

details.more-options { margin-top: var(--space-4); border-top: 1px solid var(--color-border); padding-top: var(--space-4); }
details.more-options summary { cursor: pointer; font-weight: 650; font-size: 0.92rem; list-style: none; display: flex; align-items: center; gap: 6px; }
details.more-options summary::-webkit-details-marker { display: none; }
details.more-options summary::before { content: '▸'; transition: transform 0.15s; }
details.more-options[open] summary::before { transform: rotate(90deg); }
details.more-options .content { padding-top: var(--space-4); }

/* ---- Preisübersicht -------------------------------------------------------- */
.price-panel .panel { margin-bottom: 0; }
.price-total { display: flex; justify-content: space-between; align-items: baseline; padding-bottom: var(--space-3); border-bottom: 1px solid var(--color-border); margin-bottom: var(--space-3); }
.price-total .amount { font-size: 1.8rem; font-weight: 750; }
.price-total .vat-note { font-size: 0.76rem; color: var(--color-text-muted); }
.price-lines { display: flex; flex-direction: column; gap: 6px; font-size: 0.86rem; }
.price-line { display: flex; justify-content: space-between; gap: var(--space-3); color: var(--color-text-muted); }
.price-line.discount { color: var(--color-success); }
.price-line span:last-child { flex-shrink: 0; font-variant-numeric: tabular-nums; }
.price-min-note { font-size: 0.78rem; color: var(--color-accent); margin-top: var(--space-2); }
.price-empty { color: var(--color-text-muted); font-size: 0.88rem; }

.sticky-price-bar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
  background: var(--color-surface); border-top: 1px solid var(--color-border);
  padding: var(--space-3) var(--space-4);
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-3);
  box-shadow: 0 -4px 16px rgba(0,0,0,0.06);
}
.sticky-price-bar .amount { font-size: 1.25rem; font-weight: 750; }
.sticky-price-bar .label { font-size: 0.72rem; color: var(--color-text-muted); }
@media (min-width: 900px) { .sticky-price-bar { display: none; } }

/* ---- Summary / Kundendaten -------------------------------------------------- */
.summary-list { display: flex; flex-direction: column; gap: var(--space-2); }
.summary-row { display: flex; justify-content: space-between; gap: var(--space-3); padding: var(--space-2) 0; border-bottom: 1px solid var(--color-border); font-size: 0.9rem; }
.summary-row .k { color: var(--color-text-muted); }
.summary-row .v { font-weight: 600; text-align: right; }
.edit-link { font-size: 0.78rem; color: var(--color-accent); cursor: pointer; background: none; border: none; padding: 0; font-weight: 650; }

.confirmation { text-align: center; padding: var(--space-6) var(--space-4); }
.confirmation .check { font-size: 3rem; margin-bottom: var(--space-3); }
.confirmation .req-id { display: inline-block; margin: var(--space-3) 0; padding: 10px 20px; border-radius: 999px; background: var(--color-accent-soft); color: #6b4a24; font-weight: 700; font-size: 1.1rem; }

/* ---- Admin ------------------------------------------------------------------ */
.admin-wrap { max-width: 960px; margin: 0 auto; padding: var(--space-5); }
.admin-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.admin-table th, .admin-table td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--color-border); }
.admin-table input { width: 100px; padding: 8px; border: 1.5px solid var(--color-border); border-radius: 6px; font-size: 0.9rem; }
.admin-table-scroll { overflow-x: auto; }
.admin-actions { display: flex; gap: var(--space-3); margin-top: var(--space-5); flex-wrap: wrap; }
.admin-badge { display: inline-block; background: var(--color-accent-soft); color: #6b4a24; font-size: 0.72rem; padding: 4px 10px; border-radius: 999px; font-weight: 650; }
.save-toast { position: fixed; bottom: 24px; right: 24px; background: var(--color-primary); color: #fff; padding: 12px 20px; border-radius: var(--radius-sm); font-size: 0.88rem; box-shadow: var(--shadow-card); z-index: 60; }

.tech-info { font-size: 0.8rem; color: var(--color-text-muted); background: #f7f6f4; border-radius: var(--radius-sm); padding: var(--space-3); }
.tech-info dt { font-weight: 650; color: var(--color-text); }
.tech-info dd { margin: 0 0 var(--space-2); }

.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }