:root {
  --bg: #f3f2ef;
  --surface: #ffffff;
  --text: #1d1b19;
  --muted: #6b665f;
  --line: #e2dfd8;
  --accent: #7a1f2b;        /* bordo, teatral */
  --accent-hover: #611722;
  --ok-bg: #e8f4ea; --ok-text: #1f5f2c;
  --bad-bg: #fbeaea; --bad-text: #8f1d1d;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(0,0,0,.05), 0 6px 20px rgba(0,0,0,.06);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}
code { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: .92em; }
h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 .5rem; }
h1 { font-size: 1.35rem; }
h2 { font-size: 1.15rem; }
h3 { font-size: 1.05rem; }
h4 { font-size: 1rem; overflow-wrap: anywhere; }
.muted { color: var(--muted); font-weight: normal; }
[hidden] { display: none !important; }

.wrap { max-width: 1180px; margin: 0 auto; padding-inline: 16px; }
main.wrap { padding-block: 24px 64px; }

/* Bara de sus */
.topbar { background: var(--surface); border-bottom: 1px solid var(--line); }
.topbar .wrap { display: flex; align-items: center; justify-content: space-between; min-height: 56px; gap: 12px; }
.brand { font-weight: 700; color: var(--accent); text-decoration: none; letter-spacing: .01em; }
.topbar nav { display: flex; align-items: center; gap: 12px; }

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

/* Butoane */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 6px; min-height: 38px; padding: 7px 14px;
  border: 1px solid var(--line); border-radius: 10px;
  background: var(--surface); color: var(--text);
  font: inherit; font-size: .9rem; font-weight: 500;
  text-decoration: none; cursor: pointer; white-space: nowrap;
}
.btn:hover { border-color: #c9c4ba; background: #faf9f7; }
.btn:focus-visible, input:focus-visible { outline: 3px solid rgba(122,31,43,.3); outline-offset: 1px; }
.btn:disabled { opacity: .6; cursor: progress; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-ghost { background: transparent; }
.btn-danger { color: var(--bad-text); }
.btn-danger:hover { background: var(--bad-bg); border-color: #e7c1c1; }
.btn.is-done { background: var(--ok-bg); color: var(--ok-text); border-color: #bcdcc3; }

/* Formulare */
input[type="text"], input[type="password"], input[type="number"], input[type="date"] {
  width: 100%; min-height: 40px; padding: 8px 10px;
  border: 1px solid var(--line); border-radius: 10px;
  font: inherit; background: #fff; color: var(--text);
}
input[type="number"] { width: 6.5em; }
input[type="date"] { width: auto; }
.date-form { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 10px; font-size: .9rem; }
.date-form label.inline { font-weight: normal; }
label { display: block; font-weight: 500; }
label.inline { display: inline-flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.stack { display: grid; gap: 14px; }
.stack label input { margin-top: 4px; }

/* Mesaje */
.alert { border-radius: 10px; padding: 10px 14px; margin-bottom: 12px; border: 1px solid transparent; }
.alert-ok { background: var(--ok-bg); color: var(--ok-text); border-color: #bcdcc3; }
.alert-error { background: var(--bad-bg); color: var(--bad-text); border-color: #e7c1c1; }
.badge { display: inline-block; font-size: .75rem; font-weight: 600; padding: 2px 8px; border-radius: 999px; vertical-align: middle; margin-left: 6px; }
.badge-ok { background: var(--ok-bg); color: var(--ok-text); }
.badge-bad { background: var(--bad-bg); color: var(--bad-text); }

/* Login */
.login-card { max-width: 420px; margin: 8vh auto 0; }

/* Upload */
.dropzone {
  position: relative; display: grid; gap: 4px; place-items: center; text-align: center;
  padding: 28px 16px; border: 2px dashed #cfc9bf; border-radius: 12px;
  background: #fbfaf8; cursor: pointer; font-weight: normal;
}
.dropzone.is-over, .dropzone:hover { border-color: var(--accent); background: #fcf6f6; }
.dropzone input[type="file"] { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; }
.dropzone-title { font-weight: 600; }
.file-list { list-style: none; margin: 12px 0 0; padding: 0; display: grid; gap: 4px; font-size: .9rem; }
.file-list li { padding: 6px 10px; background: #f7f6f3; border-radius: 8px; overflow-wrap: anywhere; }
.file-list li.warn { background: var(--bad-bg); color: var(--bad-text); }
.upload-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin-top: 16px; }

/* Sesiuni */
.section-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px; margin: 32px 0 12px; }
.section-head h2 { margin: 0; }
.empty { color: var(--muted); text-align: center; padding: 32px 0; }
.session-head { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.session-head p { margin: 0; font-size: .9rem; }
.session.is-expired .qr-frame { opacity: .45; }
/* Armonică: zile de încărcare → sesiuni */
#session-filter {
  width: min(100%, 300px); min-height: 38px; padding: 7px 10px;
  border: 1px solid var(--line); border-radius: 10px; font: inherit; background: #fff; color: var(--text);
}
.day-group { margin-bottom: 12px; }
.day-summary, .session-summary { list-style: none; cursor: pointer; position: relative; }
.day-summary::-webkit-details-marker, .session-summary::-webkit-details-marker { display: none; }
.day-summary::before, .session-summary::before {
  content: "›"; position: absolute; font-size: 1.3rem; line-height: 1; color: var(--muted); transition: transform .15s;
}
details[open] > .day-summary::before, details[open] > .session-summary::before { transform: rotate(90deg); }
.day-summary {
  padding: 12px 16px 12px 40px; border-radius: 10px;
  background: #e9e7e2; border: 1px solid var(--line);
}
.day-summary::before { left: 16px; top: 10px; }
.day-summary:hover { background: #e3e0da; }
.day-group[open] > .day-summary { margin-bottom: 10px; }
.day-body { padding-left: 16px; border-left: 2px solid var(--line); margin-left: 20px; }

details.session { padding: 0; margin-bottom: 10px; }
details.session > :not(summary) { margin-inline: 20px; }
details.session > .files { padding-bottom: 20px; }
details.session[open] > .session-head { padding-top: 16px; }
.session-summary { display: grid; gap: 2px; padding: 14px 20px 14px 44px; }
.session-summary::before { left: 20px; top: 12px; }
details[open] > .session-summary { border-bottom: 1px solid var(--line); }
.session-summary:hover { background: #faf9f7; border-radius: var(--radius); }
.summary-files { min-width: 0; font-size: .85rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.actions form { margin: 0; }

.files { display: grid; gap: 16px; padding-top: 16px; }
.file { display: grid; grid-template-columns: 200px 1fr; gap: 20px; align-items: start; }
.file + .file { border-top: 1px solid var(--line); padding-top: 16px; }
.qr-frame { background: #eeede9; border-radius: 12px; padding: 8px; }
.qr-frame img { display: block; width: 100%; height: auto; }
.qr-fallback { background: #fff; border-radius: 10px; padding: 14px; }
.qr-fallback img, .qr-fallback canvas { display: block; width: 100% !important; height: auto !important; }

.meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 8px 16px; margin: 6px 0 12px; }
.meta div { min-width: 0; }
.meta dt { font-size: .75rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
.meta dd { margin: 0; font-weight: 500; }
.url-row { display: flex; gap: 8px; margin-bottom: 12px; }
.url-row input { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: .8rem; min-width: 0; }

/* Meniul ⋮: pe desktop acțiunile rămân inline, butonul e ascuns */
.more { display: contents; }
.more-btn { display: none; }
.more-list { display: contents; }

/* ---------------------------------------------------------------------------
 * Telefon: interfață în stilul unei aplicații Flutter / Material 3
 * ------------------------------------------------------------------------- */
@media (max-width: 640px) {
  :root { --radius: 20px; --tonal: #f5e4e6; --tonal-hover: #eed5d8; --bg: #f6f3f1; }
  body { -webkit-tap-highlight-color: transparent; }
  main.wrap { padding: 12px 12px 48px; }

  /* App bar fix */
  .topbar { position: sticky; top: 0; z-index: 20; box-shadow: 0 1px 3px rgba(0,0,0,.08); border-bottom: 0; }
  .topbar .wrap { min-height: 56px; padding-inline: 16px; }
  .brand { font-size: 1.1rem; }
  .topbar nav .muted { display: none; }

  /* Butoane Material 3: pastilă, 44px, feedback la apăsare */
  .btn { min-height: 44px; padding: 10px 18px; border-radius: 999px; font-size: .92rem; transition: background .15s, transform .1s; }
  .btn:active { transform: scale(.97); }
  .btn:not(.btn-primary):not(.btn-ghost):not(.btn-danger):not(.is-done) { background: var(--tonal); border-color: transparent; color: var(--accent); }
  .btn:not(.btn-primary):not(.btn-ghost):not(.btn-danger):not(.is-done):hover { background: var(--tonal-hover); }
  .btn-ghost, .btn-danger { border-color: transparent; background: transparent; }

  /* Carduri */
  .card { padding: 16px; border: 0; box-shadow: 0 1px 2px rgba(0,0,0,.06), 0 2px 8px rgba(0,0,0,.04); margin-bottom: 12px; }
  h1 { font-size: 1.2rem; }

  /* Încărcare */
  .dropzone { padding: 20px 12px; border-radius: 16px; }
  .upload-row { flex-direction: column; align-items: stretch; }
  .upload-row label.inline { display: grid; gap: 6px; }
  .upload-row input[type="date"] { width: 100%; }
  .upload-row .btn { width: 100%; }

  /* Căutare + Curăță */
  .section-head { margin: 20px 0 10px; gap: 8px; }
  .section-head h2 { font-size: 1.05rem; }
  .section-head > .actions { width: 100%; flex-wrap: nowrap; }
  #session-filter { flex: 1; width: auto; min-width: 0; min-height: 48px; border-radius: 999px; padding: 10px 18px; border-color: transparent; box-shadow: 0 1px 3px rgba(0,0,0,.08); }
  .section-head > .actions .btn { padding-inline: 12px; }

  /* Zile: subtitluri lipicioase sub app bar */
  .day-group { margin-bottom: 4px; }
  .day-summary {
    position: sticky; top: 56px; z-index: 10;
    padding: 12px 44px 12px 16px; border: 0; border-radius: 12px;
    background: #ece7e4; font-size: .95rem;
  }
  .day-summary::before { left: auto; right: 18px; top: 50%; transform: translateY(-50%) rotate(90deg); }
  details[open] > .day-summary::before { transform: translateY(-50%) rotate(-90deg); }
  .day-body { padding: 0; border: 0; margin: 0; }

  /* Sesiune = ExpansionTile */
  details.session { margin-bottom: 10px; overflow: hidden; }
  details.session > :not(summary) { margin-inline: 16px; }
  .session-summary { padding: 14px 44px 14px 16px; gap: 4px; }
  .session-summary::before { left: auto; right: 18px; top: 50%; transform: translateY(-50%) rotate(90deg); }
  details[open] > .session-summary::before { transform: translateY(-50%) rotate(-90deg); }
  .session-summary:hover { border-radius: 0; }
  .summary-main { display: flex; flex-wrap: wrap; align-items: center; gap: 2px 6px; }
  .summary-main .badge { margin-left: 0; }
  .summary-files { white-space: normal; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }

  .session-title { display: none; }
  .session-head { flex-direction: column; gap: 12px; }
  .session-head p { font-size: .85rem; line-height: 1.45; }
  .date-form { display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 8px; }
  .date-form label.inline { display: grid; gap: 6px; font-size: .85rem; color: var(--muted); }
  .date-form input[type="date"] { width: 100%; }
  .session-actions { display: grid; grid-template-columns: 1fr auto; gap: 8px; }
  .session-actions .btn { width: 100%; }

  /* Catalog: miniatură QR + detalii, acțiuni dedesubt */
  .files { gap: 0; padding-top: 0; }
  .file { grid-template-columns: 84px 1fr; gap: 6px 14px; padding: 14px 0; }
  .file + .file { padding-top: 14px; }
  .file-body { display: contents; }
  .qr-frame { grid-row: 1 / span 2; max-width: none; padding: 4px; border-radius: 10px; background: #fff; border: 1px solid var(--line); }
  .file h4 { grid-column: 2; margin: 0; font-size: .95rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
  .meta { grid-column: 2; grid-template-columns: 1fr 1fr; gap: 4px 10px; margin: 0; }
  .meta div:first-child { display: none; }
  .meta dt { font-size: .68rem; }
  .meta dd { font-size: .85rem; }
  .url-row, .file .actions { grid-column: 1 / -1; }
  .url-row { flex-direction: row; margin: 6px 0 0; }
  .url-row input { min-height: 44px; border-radius: 999px; padding-inline: 14px; background: var(--bg); border-color: transparent; font-size: .75rem; }
  .url-row .btn { flex: none; }
  .file .actions { display: grid; grid-template-columns: 1fr 1fr 48px; gap: 8px; }
  .file .actions > .btn-primary { grid-column: 1 / -1; }
  .file .actions .btn { width: 100%; padding-inline: 8px; }

  /* Meniul ⋮ ca PopupMenu */
  .more { display: block; position: relative; }
  .more-btn { display: inline-flex; padding: 0 !important; font-size: 1.3rem; font-weight: 700; }
  .more-list {
    display: none; position: absolute; right: 0; bottom: calc(100% + 6px); z-index: 30;
    min-width: 210px; padding: 6px 0; background: #fff; border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,.15), 0 1px 3px rgba(0,0,0,.1);
  }
  .more.is-open .more-list { display: block; }
  .more-list form { display: block; }
  .more-list .btn { justify-content: flex-start; width: 100%; border-radius: 0; min-height: 48px; padding: 0 16px; }
  .more-list .btn:hover { background: var(--bg); }

  .alert { border-radius: 12px; }
}

/* Pagini publice (link invalid / expirat) */
body.public { display: grid; place-items: center; min-height: 100vh; padding: 16px; }
.notice {
  max-width: 440px; text-align: center; background: var(--surface);
  border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px 22px;
}
.notice p { color: var(--muted); margin: 0; }