/* ============================================================
   DPP-Register — Elster.de inspired styles
   ============================================================ */

* { box-sizing: border-box; }

:root {
  --color-bg: #ffffff;
  --color-bg-muted: #f4f5f7;
  --color-bg-panel: #fafbfc;
  --color-border: #c8ccd1;
  --color-border-strong: #8a9099;
  --color-text: #1a1a1a;
  --color-text-muted: #555b63;
  --color-text-subtle: #767c85;
  --color-primary: #0c4d8f;        /* Elster-blau */
  --color-primary-hover: #0a3e72;
  --color-primary-soft: #e6eef7;
  --color-accent-red: #b8232a;     /* Bundes-Rot */
  --color-success: #2e7d32;
  --color-warning: #b8860b;
  --color-link: #0c4d8f;
  --shadow-sm: 0 1px 2px rgba(15, 25, 40, 0.06);
  --radius: 2px;
  --font-sans: "Open Sans", "Segoe UI", -apple-system, BlinkMacSystemFont,
               "Helvetica Neue", Arial, sans-serif;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  color: var(--color-text);
  background: var(--color-bg-muted);
}

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

h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 0.6em;
  color: #0d1b2a;
}

h1 { font-size: 1.85rem; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.1rem; }

p { margin: 0 0 1em; }

/* ---------- Top federal bar ---------- */
.fed-bar {
  background: #ffffff;
  border-bottom: 3px solid #003399;
  padding: 8px 0;
  font-size: 0.78rem;
  color: var(--color-text-muted);
}
.fed-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
/* EU flag — yellow stars on blue, simplified */
.fed-bar .fed-flag {
  display: inline-block;
  height: 14px;
  width: 22px;
  margin-right: 8px;
  border: 1px solid #d0d3d7;
  background:
    radial-gradient(circle at 50% 26%, #ffcc00 0.9px, transparent 1.1px),
    radial-gradient(circle at 25% 35%, #ffcc00 0.9px, transparent 1.1px),
    radial-gradient(circle at 75% 35%, #ffcc00 0.9px, transparent 1.1px),
    radial-gradient(circle at 18% 50%, #ffcc00 0.9px, transparent 1.1px),
    radial-gradient(circle at 82% 50%, #ffcc00 0.9px, transparent 1.1px),
    radial-gradient(circle at 25% 65%, #ffcc00 0.9px, transparent 1.1px),
    radial-gradient(circle at 75% 65%, #ffcc00 0.9px, transparent 1.1px),
    radial-gradient(circle at 50% 74%, #ffcc00 0.9px, transparent 1.1px),
    #003399;
  vertical-align: middle;
}
.fed-bar .lang-switch button {
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  font: inherit;
  padding: 2px 6px;
}
.fed-bar .lang-switch button.active {
  color: var(--color-primary);
  font-weight: 700;
  text-decoration: underline;
}
.fed-bar .lang-switch span { color: var(--color-border-strong); }

/* ---------- Site header ---------- */
.site-header {
  background: #ffffff;
  border-bottom: 1px solid var(--color-border);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: inherit;
}
.brand-logo {
  width: 44px;
  height: 44px;
  flex: 0 0 44px;
  display: grid;
  place-items: center;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.5px;
}
.brand-text .brand-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #0d1b2a;
  line-height: 1.1;
}
.brand-text .brand-sub {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  letter-spacing: 0.4px;
  text-transform: uppercase;
}
.site-nav {
  display: flex;
  gap: 8px;
}
.site-nav a {
  color: var(--color-text);
  text-decoration: none;
  padding: 8px 14px;
  font-size: 0.95rem;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover { color: var(--color-primary); }
.site-nav a.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: 600;
}

/* ---------- Container ---------- */
.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

main {
  padding: 32px 0 64px;
}

/* ---------- Card / panel ---------- */
.panel {
  background: #fff;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  padding: 28px 32px;
  margin-bottom: 24px;
}
.panel + .panel { margin-top: 0; }
.panel-header {
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 14px;
  margin-bottom: 22px;
}
.panel-header h1, .panel-header h2 { margin-bottom: 4px; }
.panel-header .lead {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin: 0;
}

/* ---------- Steps / Wizard ---------- */
.stepper {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin: 0 0 28px;
  background: #fff;
  border: 1px solid var(--color-border);
}
.stepper .step {
  flex: 1;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-right: 1px solid var(--color-border);
  font-size: 0.9rem;
  color: var(--color-text-muted);
  position: relative;
}
.stepper .step:last-child { border-right: none; }
.stepper .step .num {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #e0e3e7;
  color: #555;
  display: grid;
  place-items: center;
  font-size: 0.82rem;
  font-weight: 700;
  flex: 0 0 26px;
}
.stepper .step.done .num {
  background: var(--color-success);
  color: #fff;
}
.stepper .step.active {
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-weight: 600;
}
.stepper .step.active .num {
  background: var(--color-primary);
  color: #fff;
}

/* ---------- Forms ---------- */
.form-row {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 20px;
  align-items: start;
  padding: 14px 0;
  border-bottom: 1px dashed #e1e4e8;
}
.form-row:last-of-type { border-bottom: none; }
.form-row label {
  font-weight: 600;
  font-size: 0.92rem;
  padding-top: 8px;
}
.form-row .req { color: var(--color-accent-red); margin-left: 2px; }
.form-row .hint {
  display: block;
  font-weight: 400;
  font-size: 0.82rem;
  color: var(--color-text-subtle);
  margin-top: 4px;
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.form-grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="url"],
input[type="date"],
select,
textarea {
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius);
  font: inherit;
  font-size: 0.95rem;
  background: #fff;
  color: var(--color-text);
}
input:focus, select:focus, textarea:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 0;
  border-color: var(--color-primary);
}

textarea { resize: vertical; min-height: 88px; }

.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.92rem;
}
.checkbox-row input[type="checkbox"] {
  width: 18px; height: 18px;
  margin-top: 2px;
  flex: 0 0 18px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border-radius: var(--radius);
  border: 1px solid transparent;
  text-decoration: none;
  transition: background 0.12s, border-color 0.12s;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
}
.btn-secondary {
  background: #fff;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn-secondary:hover { background: var(--color-primary-soft); }
.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border-color: transparent;
}
.btn-ghost:hover { color: var(--color-text); text-decoration: underline; }

.btn-row {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}
.btn-row .spacer { flex: 1; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, #0c4d8f 0%, #0a3e72 100%);
  color: #fff;
  padding: 56px 0;
  margin-bottom: 32px;
}
.hero h1 { color: #fff; font-size: 2.1rem; margin-bottom: 12px; }
.hero p.lead {
  font-size: 1.08rem;
  color: #d6e2ee;
  max-width: 720px;
  margin-bottom: 24px;
}
.hero .cta-row { display: flex; gap: 14px; flex-wrap: wrap; }
.hero .btn-secondary {
  background: transparent;
  color: #fff;
  border-color: #fff;
}
.hero .btn-secondary:hover { background: rgba(255,255,255,0.1); }

/* ---------- Tile grid (landing) ---------- */
.tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin-bottom: 32px;
}
.tile {
  background: #fff;
  border: 1px solid var(--color-border);
  padding: 22px;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: border-color 0.12s, transform 0.12s;
}
.tile:hover {
  border-color: var(--color-primary);
  transform: translateY(-1px);
  text-decoration: none;
}
.tile .icon {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  margin-bottom: 12px;
  font-size: 20px;
}
.tile h3 { margin-bottom: 6px; }
.tile p { color: var(--color-text-muted); font-size: 0.92rem; margin: 0; }

/* ---------- Info box ---------- */
.info {
  border-left: 4px solid var(--color-primary);
  background: var(--color-primary-soft);
  padding: 14px 18px;
  margin-bottom: 24px;
  font-size: 0.92rem;
}
.info strong { color: var(--color-primary); }
.info.warning {
  border-left-color: var(--color-warning);
  background: #fbf2dc;
}
.info.warning strong { color: var(--color-warning); }
.info.success {
  border-left-color: var(--color-success);
  background: #e7f3e7;
}
.info.success strong { color: var(--color-success); }

/* ---------- Dropzone ---------- */
.dropzone {
  border: 2px dashed var(--color-border-strong);
  background: var(--color-bg-panel);
  padding: 40px 24px;
  text-align: center;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s;
}
.dropzone:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
}
.dropzone.has-file {
  border-style: solid;
  border-color: var(--color-success);
  background: #f1f8f1;
}
.dropzone .dz-icon {
  font-size: 42px;
  color: var(--color-primary);
  margin-bottom: 10px;
}
.dropzone h3 { margin-bottom: 4px; }
.dropzone p { color: var(--color-text-muted); margin: 0; font-size: 0.9rem; }
.dropzone input[type="file"] { display: none; }
.dz-preview {
  display: flex;
  align-items: center;
  gap: 16px;
  justify-content: center;
  margin-top: 16px;
}
.dz-preview img {
  max-width: 120px;
  max-height: 120px;
  background: #fff;
  border: 1px solid var(--color-border);
  padding: 8px;
}
.dz-preview .dz-meta {
  text-align: left;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ---------- Credential card ---------- */
.credential-wrap {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 28px;
}
@media (max-width: 900px) {
  .credential-wrap { grid-template-columns: 1fr; }
}

.vc-card {
  background: linear-gradient(135deg, #0c4d8f 0%, #1d6cb5 100%);
  color: #fff;
  padding: 26px 28px;
  border-radius: 6px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 14px 30px rgba(15,25,40,0.18);
}
.vc-card::after {
  content: "";
  position: absolute;
  right: -60px; bottom: -60px;
  width: 240px; height: 240px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
}
.vc-card .vc-head {
  display: flex; justify-content: space-between; align-items: flex-start;
  margin-bottom: 22px;
}
.vc-card .vc-issuer {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #cfdcec;
}
.vc-card .vc-type {
  font-size: 1.35rem;
  font-weight: 700;
  margin-top: 2px;
}
.vc-card .vc-seal {
  width: 70px; height: 70px;
  background: #fff;
  border-radius: 50%;
  display: grid; place-items: center;
  padding: 8px;
  flex: 0 0 70px;
}
.vc-card .vc-seal img { max-width: 100%; max-height: 100%; }
.vc-card .vc-seal-fallback {
  font-size: 1.1rem; font-weight: 700; color: var(--color-primary);
}
.vc-card .vc-attr-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 24px;
  margin-bottom: 22px;
}
.vc-card .vc-attr-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: #b9c8da;
  margin-bottom: 2px;
}
.vc-card .vc-attr-value {
  font-size: 0.98rem;
  font-weight: 600;
  word-break: break-word;
}
.vc-card .vc-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.18);
  font-size: 0.82rem;
}
.vc-card .vc-foot .vc-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(46, 125, 50, 0.95);
  padding: 4px 10px;
  border-radius: 999px;
  font-weight: 600;
}
.vc-card .vc-foot .vc-status::before {
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #aaffaa;
}

.vc-side {
  display: flex; flex-direction: column; gap: 14px;
}
.vc-qr {
  background: #fff;
  border: 1px solid var(--color-border);
  padding: 18px;
  text-align: center;
}
.vc-qr svg { width: 100%; height: auto; max-width: 220px; }
.vc-qr p {
  margin: 10px 0 0;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.vc-meta-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.vc-meta-table th, .vc-meta-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid #eef0f3;
  vertical-align: top;
}
.vc-meta-table th {
  width: 38%;
  background: var(--color-bg-panel);
  color: var(--color-text-muted);
  font-weight: 600;
}
.vc-meta-table code {
  font-family: "SFMono-Regular", "Consolas", monospace;
  font-size: 0.82rem;
  background: var(--color-bg-muted);
  padding: 1px 6px;
  border-radius: 2px;
  word-break: break-all;
}

/* ---------- Footer ---------- */
.site-footer {
  background: #0d1b2a;
  color: #c8ccd1;
  padding: 36px 0 24px;
  font-size: 0.88rem;
  margin-top: 48px;
}
.site-footer h4 {
  color: #fff;
  font-size: 0.92rem;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 10px;
}
.site-footer a { color: #c8ccd1; }
.site-footer a:hover { color: #fff; }
.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  margin-bottom: 24px;
}
.footer-grid ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-grid li { margin-bottom: 6px; }
.footer-bottom {
  border-top: 1px solid #1f2c3d;
  padding-top: 14px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  color: #8a9099;
  font-size: 0.82rem;
}

/* ---------- Utility ---------- */
.text-muted { color: var(--color-text-muted); }
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-2 { gap: 16px; }
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 3px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  background: var(--color-bg-muted);
  color: var(--color-text-muted);
}
.tag-primary { background: var(--color-primary-soft); color: var(--color-primary); }
.tag-success { background: #e7f3e7; color: var(--color-success); }
.tag-warn { background: #fbf2dc; color: var(--color-warning); }

@media (max-width: 720px) {
  .form-row { grid-template-columns: 1fr; gap: 6px; }
  .form-grid-2, .form-grid-3 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stepper { flex-direction: column; }
  .stepper .step { border-right: none; border-bottom: 1px solid var(--color-border); }
  .stepper .step:last-child { border-bottom: none; }
}