:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #1c1e21;
  --muted: #6b7079;
  --border: #e2e4e8;
  --accent: #4f5bd5;
  --accent-hover: #3f4ac0;
  --accent-soft: #eceefc;
  --danger: #d0453b;
  --danger-soft: #fcebea;
  --success: #1f9d55;
  --success-soft: #e6f6ed;
  --warn: #b7791f;
  --input: #ffffff;
  --shadow: 0 1px 2px rgba(0, 0, 0, .04), 0 4px 16px rgba(0, 0, 0, .04);
  --radius: 12px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111317;
    --card: #1a1d23;
    --text: #e8eaed;
    --muted: #9aa0a9;
    --border: #2c3038;
    --accent: #7b86f0;
    --accent-hover: #939cf4;
    --accent-soft: #252a4a;
    --danger: #ef6b61;
    --danger-soft: #3a2220;
    --success: #4cc584;
    --success-soft: #1b3326;
    --warn: #e0a84a;
    --input: #13151a;
    --shadow: none;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

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

.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.mono { font-family: ui-monospace, "Cascadia Mono", Consolas, monospace; }
.nowrap { white-space: nowrap; }

/* --- Layout --- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: 980px;
  margin: 0 auto;
  padding: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
}
.brand:hover { text-decoration: none; }
.brand img { width: 28px; height: 28px; }

.nav { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; justify-content: flex-end; }
.nav .who { color: var(--muted); }

main {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 16px 48px;
}

main.narrow { max-width: 440px; padding-top: 8vh; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 20px;
}

.card h2 { margin: 0 0 14px; font-size: 17px; }
.card h1 { margin: 0 0 6px; font-size: 22px; }

.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: flex-end; }
.row > .field { flex: 1 1 180px; }

/* --- Formulaires --- */

.field { display: flex; flex-direction: column; gap: 5px; margin-bottom: 12px; }
.field label { font-size: 13px; font-weight: 600; color: var(--muted); }

input[type=text], input[type=password], input[type=number], select {
  width: 100%;
  padding: 9px 11px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--input);
  color: var(--text);
  font: inherit;
}
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }

.check { display: flex; align-items: center; gap: 8px; cursor: pointer; }
.checkline { margin: 4px 0 16px; width: fit-content; }

button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 16px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}
button:hover, .btn:hover { background: var(--accent-hover); text-decoration: none; }
button:disabled { opacity: .55; cursor: not-allowed; }

button.secondary, .btn.secondary { background: transparent; color: var(--text); border-color: var(--border); }
button.secondary:hover, .btn.secondary:hover { background: var(--accent-soft); }
button.danger { background: transparent; color: var(--danger); border-color: var(--border); }
button.danger:hover { background: var(--danger-soft); }
button.small, .btn.small { padding: 5px 10px; font-size: 13px; }
button.link { background: none; border: 0; padding: 0; color: var(--accent); font-weight: 500; }
button.link:hover { background: none; text-decoration: underline; }
button.block { width: 100%; }

.alert {
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 14px;
  background: var(--danger-soft);
  color: var(--danger);
}
.alert.info { background: var(--accent-soft); color: var(--accent); }
.alert.success { background: var(--success-soft); color: var(--success); }

/* --- Zone de dépôt --- */

.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 36px 16px;
  text-align: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  margin-bottom: 16px;
}
.dropzone:hover, .dropzone.over { border-color: var(--accent); background: var(--accent-soft); }
.dropzone .big { font-size: 17px; font-weight: 600; margin-bottom: 4px; }
.dropzone svg { width: 40px; height: 40px; color: var(--accent); margin-bottom: 8px; }

.filelist { list-style: none; margin: 0 0 16px; padding: 0; }
.filelist li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.filelist li:last-child { border-bottom: 0; }
.filelist .name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; }
.filelist .bad { color: var(--danger); }

/* --- Progression --- */

.progress {
  height: 10px;
  border-radius: 99px;
  background: var(--border);
  overflow: hidden;
}
.progress > div {
  height: 100%;
  width: 0;
  background: var(--accent);
  border-radius: 99px;
  transition: width .2s;
}
.progress.warn > div { background: var(--warn); }
.progress.danger > div { background: var(--danger); }

.progress-info { display: flex; justify-content: space-between; margin-top: 6px; font-size: 13px; color: var(--muted); }

.usage { min-width: 160px; }
.usage .progress { height: 6px; margin-top: 3px; }

/* --- Résultat --- */

.linkbox { display: flex; gap: 8px; margin: 10px 0; }
.linkbox input { font-family: ui-monospace, Consolas, monospace; font-size: 14px; }

/* --- Liste des partages --- */

.share {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 10px;
}
.share-head { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; }
.share-title { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; flex: 1 1 200px; }
.share-meta { display: flex; gap: 14px; flex-wrap: wrap; font-size: 13px; color: var(--muted); margin-top: 4px; }
.share-actions { display: flex; gap: 6px; }
.share details { margin-top: 6px; font-size: 13px; }
.share summary { cursor: pointer; color: var(--muted); }

.badge {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 99px;
  font-size: 12px;
  font-weight: 600;
  background: var(--accent-soft);
  color: var(--accent);
}
.badge.warn { background: var(--danger-soft); color: var(--danger); }
.badge.ok { background: var(--success-soft); color: var(--success); }
.badge.off { background: var(--border); color: var(--muted); }

.empty { text-align: center; color: var(--muted); padding: 20px 0; }

/* --- Tableaux (admin) --- */

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 8px 8px; border-bottom: 1px solid var(--border); vertical-align: middle; }
th { font-size: 12px; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); font-weight: 600; }
td input[type=number] { width: 90px; padding: 5px 7px; }
td select { width: auto; padding: 5px 7px; }
td .actions { display: flex; gap: 6px; flex-wrap: wrap; }
tr.inactive td { opacity: .55; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin-bottom: 20px; }
.stat { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; }
.stat .label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; }
.stat .value { font-size: 22px; font-weight: 700; margin-top: 2px; }

.tabs { display: flex; gap: 4px; margin-bottom: 16px; border-bottom: 1px solid var(--border); }
.tabs button {
  background: none;
  color: var(--muted);
  border: 0;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  padding: 10px 14px;
}
.tabs button:hover { background: none; color: var(--text); }
.tabs button.active { color: var(--accent); border-bottom-color: var(--accent); }

/* --- Téléchargement --- */

.dl-file {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.dl-file:last-child { border-bottom: 0; }
.dl-file .name { font-weight: 600; word-break: break-all; }

.countdown { font-variant-numeric: tabular-nums; }

/* --- Toast --- */

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 14px;
  z-index: 100;
  opacity: 0;
  transition: opacity .2s;
  pointer-events: none;
}
.toast.show { opacity: 1; }

/* --- Modale --- */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, .45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 50;
}
.modal { max-width: 440px; width: 100%; margin: 0; }

@media (max-width: 600px) {
  .topbar { flex-direction: column; align-items: flex-start; }
  .nav { justify-content: flex-start; }
  .linkbox { flex-direction: column; }
}