:root {
  color-scheme: light;
  --bg: #f3f5f8;
  --card: #ffffff;
  --surface: #f7f9fc;
  --surface-2: #eef1f5;
  --hover: #f0f3f7;
  --text: #1f2933;
  --muted: #6b7a8c;
  --primary: #1f5fbf;
  --primary-dark: #174a96;
  --primary-contrast: #ffffff;
  --danger: #c0392b;
  --danger-bg: #fdecea;
  --danger-border: #f5b7b1;
  --success: #1e8449;
  --success-bg: #e9f7ef;
  --success-border: #a9dfbf;
  --info: #174a96;
  --info-bg: #eaf2fb;
  --info-border: #aed0f5;
  --border: #d9dee5;
  --shadow: rgba(0, 0, 0, 0.04);
  --radius: 10px;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0f1419;
  --card: #171d24;
  --surface: #1d242d;
  --surface-2: #242c36;
  --hover: #222a34;
  --text: #e6eaf0;
  --muted: #94a0ae;
  --primary: #5b9cf6;
  --primary-dark: #3d82e0;
  --primary-contrast: #0b1220;
  --danger: #ff7b6e;
  --danger-bg: #3a1f1c;
  --danger-border: #6b2f2a;
  --success: #5bd38a;
  --success-bg: #163122;
  --success-border: #22573a;
  --info: #8dbcff;
  --info-bg: #15243a;
  --info-border: #244a7a;
  --border: #2b343f;
  --shadow: rgba(0, 0, 0, 0.35);
}

/* Suit la préférence du système quand aucun choix manuel n'est enregistré. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0f1419;
    --card: #171d24;
    --surface: #1d242d;
    --surface-2: #242c36;
    --hover: #222a34;
    --text: #e6eaf0;
    --muted: #94a0ae;
    --primary: #5b9cf6;
    --primary-dark: #3d82e0;
    --primary-contrast: #0b1220;
    --danger: #ff7b6e;
    --danger-bg: #3a1f1c;
    --danger-border: #6b2f2a;
    --success: #5bd38a;
    --success-bg: #163122;
    --success-border: #22573a;
    --info: #8dbcff;
    --info-bg: #15243a;
    --info-border: #244a7a;
    --border: #2b343f;
    --shadow: rgba(0, 0, 0, 0.35);
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: background-color 0.2s ease, color 0.2s ease;
}

a { color: var(--primary); }

.topbar {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.brand { font-weight: 700; color: var(--text); text-decoration: none; font-size: 1.1rem; }
.topbar nav { display: flex; gap: 1rem; align-items: center; }
.topbar nav a, .topbar nav button.link { color: var(--primary); text-decoration: none; font-weight: 500; }
.topbar nav a:hover, .topbar nav button.link:hover { text-decoration: underline; }

.theme-toggle {
  display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto;
  width: 2.1rem; height: 2.1rem; padding: 0;
  border-radius: 50%; border: 1px solid var(--border);
  background: var(--surface); color: var(--text); cursor: pointer; font-size: 1rem;
}
.theme-toggle:hover { background: var(--hover); }
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: inline; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: inline; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .icon-sun { display: inline; }
  :root:not([data-theme="light"]) .theme-toggle .icon-moon { display: none; }
}

.container { flex: 1; width: 100%; max-width: 1000px; margin: 2rem auto; padding: 0 1rem; }
.footer { text-align: center; color: var(--muted); font-size: 0.85rem; padding: 1.5rem; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 1px 3px var(--shadow);
}
.card.narrow { max-width: 520px; margin-left: auto; margin-right: auto; }

h1 { font-size: 1.5rem; margin: 0 0 0.75rem; overflow-wrap: anywhere; }
h2 { font-size: 1.15rem; margin: 0 0 0.75rem; overflow-wrap: anywhere; }
.muted { color: var(--muted); }
.row-between { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1rem; }

label { display: block; font-weight: 600; margin: 1rem 0 0.3rem; }
input[type="text"], input[type="password"] {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 1rem;
  font-family: inherit;
  background: var(--surface);
  color: var(--text);
}
input::placeholder { color: var(--muted); opacity: 0.8; }
input:focus { outline: 2px solid var(--primary); outline-offset: 1px; border-color: var(--primary); }
.code-input { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; letter-spacing: 0.15em; text-transform: uppercase; font-size: 1.3rem; text-align: center; }

button, .button {
  display: inline-block;
  padding: 0.55rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--card);
  color: var(--text);
  font-size: 0.95rem;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
}
button:hover, .button:hover { background: var(--hover); }
button.primary, .button.primary { background: var(--primary); border-color: var(--primary); color: var(--primary-contrast); }
button.primary:hover, .button.primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); }
button.danger { color: var(--danger); border-color: var(--danger); }
button.danger:hover { background: var(--danger-bg); }
button.small, .button.small { padding: 0.3rem 0.7rem; font-size: 0.85rem; }
button.link { background: none; border: none; padding: 0; cursor: pointer; font-size: inherit; font-family: inherit; }
form button.primary { margin-top: 1.25rem; }
form button.secondary { margin-top: 1.25rem; }
.sso-button { display: block; text-align: center; margin-top: 0.5rem; }
.separator { text-align: center; margin: 1.25rem 0 0; font-size: 0.9rem; }
form small { display: block; margin-top: 0.3rem; }
form.inline { display: inline; }

.flashes { margin-bottom: 1rem; }
.flash { padding: 0.7rem 1rem; border-radius: 6px; margin-bottom: 0.5rem; border: 1px solid; }
.flash-success { background: var(--success-bg); border-color: var(--success-border); color: var(--success); }
.flash-error { background: var(--danger-bg); border-color: var(--danger-border); color: var(--danger); }
.flash-info { background: var(--info-bg); border-color: var(--info-border); color: var(--info); }

table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
th, td { text-align: left; padding: 0.6rem 0.5rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { color: var(--muted); font-weight: 600; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.03em; }
td.actions-cell { white-space: nowrap; text-align: right; }
td.actions-cell form { margin-left: 0.4rem; }

.code { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; background: var(--surface-2); color: var(--text); padding: 0.15rem 0.45rem; border-radius: 4px; letter-spacing: 0.08em; white-space: nowrap; }
.code.big { display: inline-block; max-width: 100%; box-sizing: border-box; overflow-wrap: anywhere; font-size: 1.6rem; padding: 0.4rem 0.9rem; letter-spacing: 0.15em; vertical-align: middle; }
.code-box { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; margin: 1rem 0; padding: 1rem; background: var(--surface); border: 1px dashed var(--border); border-radius: var(--radius); max-width: 100%; }

.badge { display: inline-block; padding: 0.15rem 0.6rem; border-radius: 999px; font-size: 0.8rem; font-weight: 600; }
.badge-open { background: var(--success-bg); color: var(--success); }
.badge-closed { background: var(--surface-2); color: var(--muted); }
.badge-expired { background: var(--danger-bg); color: var(--danger); }

dl.meta { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 0.3rem 1.25rem; margin: 1rem 0; }
dl.meta dt { color: var(--muted); font-weight: 600; }
dl.meta dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }

.actions { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-top: 1rem; }

.upload-form { margin-top: 1rem; }
.dropzone {
  display: flex; flex-direction: column; align-items: center; gap: 0.3rem;
  padding: 1.75rem; border: 2px dashed var(--border); border-radius: var(--radius);
  background: var(--surface); cursor: pointer; text-align: center; font-weight: normal; margin: 0;
  position: relative;
}
.dropzone:hover, .dropzone.dragover { border-color: var(--primary); }
.dropzone.dragover { background: var(--info-bg); }
.dropzone:focus-within { outline: 2px solid var(--primary); outline-offset: 2px; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

#file-selection h3 { font-size: 1rem; margin: 1.25rem 0 0.5rem; }
.file-list { list-style: none; margin: 0 0 0.4rem; padding: 0; border: 1px solid var(--border); border-radius: 6px; }
.file-list li { display: flex; align-items: center; gap: 0.75rem; padding: 0.45rem 0.75rem; border-bottom: 1px solid var(--border); }
.file-list li:last-child { border-bottom: none; }
.file-list .file-name { flex: 1 1 auto; min-width: 0; overflow-wrap: anywhere; }
.file-list button { flex: 0 0 auto; }
.file-list li.invalid .file-name { color: var(--danger); text-decoration: line-through; }
.error-text { color: var(--danger); }

.quota { margin-top: 1rem; }
.quota progress { width: 100%; height: 8px; accent-color: var(--primary); display: block; margin-bottom: 0.3rem; }

/* Téléphone : menu en lignes entières, tableaux en fiches, actions faciles à toucher. */
@media (max-width: 640px) {
  .topbar { padding: 0.65rem 0.9rem; align-items: flex-start; }
  .topbar nav { flex-wrap: wrap; gap: 0.15rem 0.85rem; }
  .topbar nav a,
  .topbar nav button.link,
  .topbar nav form { flex: 0 0 auto; }
  .topbar nav a,
  .topbar nav button.link { white-space: nowrap; padding: 0.4rem 0; }
  .theme-toggle { width: 2.75rem; height: 2.75rem; }

  .container { margin: 1rem auto; padding: 0 0.75rem; }
  .card { padding: 1.1rem 0.9rem; }
  .row-between { align-items: stretch; }
  .row-between .button { width: 100%; text-align: center; }

  form button.primary,
  form button.secondary,
  .sso-button { width: 100%; min-height: 2.75rem; }

  .code-input { font-size: 1.15rem; letter-spacing: 0.08em; }
  .code.big { font-size: 1.2rem; letter-spacing: 0.08em; padding: 0.35rem 0.55rem; }

  .file-list li { flex-wrap: wrap; }

  table.data-table thead {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
  }
  table.data-table,
  table.data-table tbody,
  table.data-table tr,
  table.data-table td { display: block; width: 100%; }
  table.data-table tr {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.2rem 0.75rem;
    margin-bottom: 0.75rem;
  }
  table.data-table td {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    column-gap: 0.75rem;
    align-items: start;
    padding: 0.45rem 0;
    border-bottom: 1px solid var(--border);
    text-align: right;
    overflow-wrap: anywhere;
    white-space: normal;
  }
  table.data-table tr td:last-child { border-bottom: none; }
  table.data-table td::before {
    content: attr(data-label);
    color: var(--muted);
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    text-align: left;
  }
  table.data-table td > code,
  table.data-table td > .badge {
    justify-self: end;
    width: max-content;
    max-width: 100%;
  }
  table.data-table td.actions-cell {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 0.5rem;
    text-align: left;
  }
  table.data-table td.actions-cell::before { flex: 1 0 100%; }
  table.data-table td.actions-cell form { margin-left: 0; }
  table.data-table td.actions-cell .button,
  table.data-table td.actions-cell button {
    min-height: 2.75rem;
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
  }
}