/* ==========================================================================
   Doc-Seal — Application (vérification + scellement)
   Palette bleu marine professionnelle (juridique).
   ========================================================================== */

:root {
  --navy-900: #0a1f3d;
  --navy-700: #16345e;
  --navy-500: #1d4878;
  --navy-400: #2c66a8;
  --navy-300: #4a83c7;
  --navy-100: #e1ebf6;
  --navy-50: #f3f7fc;
  --gold-500: #c9a961;
  --gold-100: #f5edd9;
  --white: #ffffff;
  --off-white: #f7f9fc;
  --border: #e1e7ef;
  --border-strong: #cdd6e3;
  --text: #0f1929;
  --text-soft: #2a384e;
  --text-muted: #5a6678;
  --shadow-sm: 0 1px 3px rgba(10, 31, 61, 0.06);
  --shadow-md: 0 8px 24px rgba(10, 31, 61, 0.08);
  --radius-sm: 8px;
  --radius: 12px;
  --font-mono: "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Helvetica Neue",
    Roboto, Arial, sans-serif;
  background: var(--off-white);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--navy-500); text-decoration: none; }
a:hover { color: var(--navy-700); text-decoration: underline; }

/* ---------- Topbar ---------- */
.topbar {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
}
.brand:hover { text-decoration: none; }
.logo {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--navy-700), var(--navy-900));
  color: var(--white);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
}
.logo svg { display: block; }
.brand-text { display: block; }
.brand-text h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--navy-900);
  line-height: 1.2;
}
.tagline {
  margin: 2px 0 0;
  color: var(--text-muted);
  font-size: 12px;
}
.session {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-soft);
}

/* ---------- Tabs ---------- */
.tabs {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
  display: flex;
  gap: 4px;
  overflow-x: auto;
}
.tab {
  background: transparent;
  border: none;
  padding: 12px 16px;
  font-size: 14px;
  cursor: pointer;
  color: var(--text-muted);
  border-bottom: 2px solid transparent;
  font-weight: 500;
  white-space: nowrap;
  font-family: inherit;
}
.tab:hover { color: var(--navy-700); }
.tab.active {
  color: var(--navy-700);
  border-bottom-color: var(--navy-500);
}

/* ---------- Layout ---------- */
main { max-width: 860px; margin: 24px auto; padding: 0 16px; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

section.tab-panel > h2 {
  margin-top: 0;
  color: var(--navy-900);
  font-weight: 700;
  letter-spacing: -0.01em;
}
section.tab-panel {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 18px;
  box-shadow: var(--shadow-sm);
}

details.settings {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 16px;
  margin-bottom: 12px;
}
details.settings summary {
  cursor: pointer;
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}
details summary { cursor: pointer; }

/* ---------- Forms ---------- */
label {
  display: block;
  font-size: 13px;
  color: var(--text-soft);
  margin: 10px 0 4px;
  font-weight: 500;
}
input[type="url"],
input[type="text"],
input[type="email"],
input[type="password"],
select,
input[type="file"] {
  width: 100%;
  padding: 10px 12px;
  font-size: 14px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  font-family: inherit;
  background: var(--white);
  color: var(--text);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
input:focus, select:focus {
  outline: none;
  border-color: var(--navy-400);
  box-shadow: 0 0 0 3px var(--navy-100);
}
input[type="text"]#hash-input {
  font-family: var(--font-mono);
  font-size: 12px;
}

/* ---------- Buttons ---------- */
button:not(.link):not(.tab),
.btn-like {
  display: inline-block;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  background: var(--navy-500);
  color: var(--white) !important;
  border: 1px solid var(--navy-500);
  border-radius: var(--radius-sm);
  cursor: pointer;
  margin-top: 12px;
  text-decoration: none;
  font-family: inherit;
  transition: background 0.15s ease, border-color 0.15s ease;
}
button:not(.link):not(.tab):hover,
.btn-like:hover {
  background: var(--navy-700);
  border-color: var(--navy-700);
  color: var(--white) !important;
  text-decoration: none;
}
button:not(.link):not(.tab):disabled {
  background: var(--border-strong);
  border-color: var(--border-strong);
  cursor: not-allowed;
}
button.link {
  background: transparent;
  color: var(--navy-500);
  border: none;
  cursor: pointer;
  font-size: 13px;
  text-decoration: underline;
  font-family: inherit;
}

/* ---------- Dropzone ---------- */
.dropzone {
  border: 2px dashed var(--border-strong);
  background: var(--off-white);
  text-align: center;
  padding: 40px 20px;
  border-radius: 10px;
  transition: border-color 0.2s, background 0.2s;
  margin: 12px 0;
}
.dropzone.dragover {
  border-color: var(--navy-400);
  background: var(--navy-50);
}
.dropzone input[type="file"] {
  margin: 10px auto;
  display: block;
  max-width: 320px;
}
.dropzone .note {
  color: var(--text-muted);
  font-size: 12px;
  margin-top: 16px;
}

/* ---------- Grid auth ---------- */
.grid2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.grid2 > div {
  background: var(--off-white);
  padding: 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
}
.grid2 h3 {
  margin-top: 0;
  font-size: 15px;
  color: var(--navy-900);
}
@media (max-width: 640px) {
  .grid2 { grid-template-columns: 1fr; }
}

/* ---------- Result blocks ---------- */
.result {
  margin-top: 16px;
  padding: 16px;
  border-radius: 10px;
}
.result.ok {
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
}
.result.ko {
  background: #fef2f2;
  border: 1px solid #fecaca;
}
.result h3 { margin: 0 0 8px; }
.result.ok h3 { color: #047857; }
.result.ko h3 { color: #b91c1c; }
.result dl {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 6px 12px;
  margin: 12px 0 0;
  font-size: 13px;
}
.result dt {
  font-weight: 600;
  color: var(--text-soft);
}
.result dd {
  margin: 0;
  word-break: break-all;
  font-family: var(--font-mono);
  font-size: 12px;
}

.mono,
pre.mono {
  background: var(--navy-50);
  padding: 10px;
  font-size: 11px;
  border-radius: var(--radius-sm);
  white-space: pre-wrap;
  word-break: break-all;
  margin: 12px 0 0;
  font-family: var(--font-mono);
  color: var(--navy-700);
}

.status {
  font-size: 12px;
  margin: 8px 0 0;
  min-height: 16px;
}
.status.ok { color: #047857; }
.status.err { color: #b91c1c; }

#seals-list { margin-top: 16px; }
.seal-card {
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 10px;
  font-size: 13px;
}
.seal-card .row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}
.seal-card .meta {
  color: var(--text-muted);
  font-size: 11px;
  font-family: var(--font-mono);
  word-break: break-all;
}

footer {
  max-width: 860px;
  margin: 32px auto 24px;
  padding: 0 16px;
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
}