:root {
  --bg: #0e1013;
  --surface: #15181d;
  --surface-2: #1a1e24;
  --border: #262b33;
  --text: #e7eaf0;
  --muted: #98a1af;
  --accent: #3f7bf6;
  --accent-strong: #2f63d8;
  --danger: #e05555;
  --ok: #46b076;
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.app {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px 48px;
}

/* ---- top bar ---- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 0 18px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 22px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo {
  width: 40px;
  height: 40px;
  display: block;
}

.brand-text h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 650;
  line-height: 1.1;
}

.sub {
  font-size: 12px;
  color: var(--muted);
}

.topbar-actions {
  display: flex;
  gap: 8px;
}

/* ---- buttons ---- */
.btn {
  border: 1px solid transparent;
  border-radius: var(--radius);
  padding: 9px 14px;
  font-size: 13px;
  font-weight: 600;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-strong);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--muted);
}

.btn-ghost:hover {
  color: var(--text);
  border-color: var(--muted);
}

.btn-danger {
  background: transparent;
  border: 1px solid var(--danger);
  color: var(--danger);
}

.btn-danger:hover {
  background: rgba(224, 85, 85, 0.1);
}

.btn-block {
  width: 100%;
  margin-top: 14px;
}

/* ---- layout ---- */
.layout {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 20px;
  align-items: start;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.panel h2 {
  margin: 0 0 16px;
  font-size: 15px;
  font-weight: 650;
  letter-spacing: 0.2px;
}

/* ---- upload panel ---- */
.upload-panel {
  position: sticky;
  top: 20px;
}

.dropzone {
  border: 1.5px dashed var(--border);
  border-radius: var(--radius);
  padding: 26px 16px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  outline: none;
}

.dropzone:hover,
.dropzone.drag,
.dropzone:focus-visible {
  border-color: var(--accent);
  background: rgba(63, 123, 246, 0.06);
}

.dz-main {
  margin: 0;
  font-weight: 600;
  font-size: 14px;
}

.dz-sub {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.dz-file {
  margin: 12px 0 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  word-break: break-all;
}

.field {
  margin-top: 16px;
}

.field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 6px;
  letter-spacing: 0.3px;
}

.field label .optional {
  font-weight: 500;
  text-transform: lowercase;
  letter-spacing: 0;
  opacity: 0.75;
}

.field input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  padding: 11px 12px;
  font-size: 14px;
}

.field input:focus {
  outline: none;
  border-color: var(--accent);
}

/* ---- progress ---- */
.progress {
  margin-top: 16px;
}

.progress-label {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 8px;
}

.progress-label span:first-child {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.progress-track {
  height: 6px;
  background: var(--surface-2);
  border-radius: 99px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: var(--accent);
  border-radius: 99px;
  transition: width 0.15s;
}

/* ---- result banner ---- */
.result {
  margin-top: 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-2);
  padding: 12px;
}

.result-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.result-head span:first-child {
  font-size: 13px;
  font-weight: 600;
  word-break: break-all;
}

.url-row {
  display: flex;
  gap: 8px;
}

.url-row input {
  flex: 1;
  min-width: 0;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  padding: 10px 12px;
  font-size: 13px;
}

/* ---- files panel ---- */
.panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.panel-head h2 {
  margin-bottom: 4px;
}

.count {
  font-size: 12px;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.files-note {
  margin: 0 0 16px;
  font-size: 12px;
  color: var(--muted);
}

.table-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow-x: auto;
}

.files-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 520px;
}

.files-table th,
.files-table td {
  text-align: left;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  vertical-align: middle;
}

.files-table thead th {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--muted);
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  font-weight: 600;
}

.files-table tbody tr:last-child td {
  border-bottom: none;
}

.files-table tbody tr:hover td {
  background: rgba(255, 255, 255, 0.015);
}

.col-name {
  width: 40%;
}

.col-size {
  width: 12%;
}

.col-date {
  width: 20%;
}

.col-actions {
  width: 28%;
  text-align: right;
}

.file-name {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  word-break: break-all;
}

.lock {
  flex-shrink: 0;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--muted);
  background: rgba(63, 123, 246, 0.12);
  border: 1px solid rgba(63, 123, 246, 0.3);
  border-radius: 99px;
  padding: 2px 8px;
}

.lock.public {
  background: rgba(130, 190, 140, 0.1);
  border-color: rgba(130, 190, 140, 0.3);
}

.file-sub {
  display: block;
  font-size: 12px;
  color: var(--muted);
  font-weight: 400;
  margin-top: 2px;
  word-break: break-all;
}

.file-size,
.file-date {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.row-actions {
  display: flex;
  justify-content: flex-end;
  gap: 6px;
}

.row-actions .btn {
  padding: 7px 10px;
  font-size: 12px;
}

.empty {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  padding: 28px 0 6px;
  margin: 0;
}

/* ---- notice ---- */
#notice {
  margin-top: 14px;
  font-size: 13px;
  border-radius: var(--radius);
  padding: 10px 12px;
}

#notice.error {
  color: var(--danger);
  background: rgba(224, 85, 85, 0.08);
  border: 1px solid rgba(224, 85, 85, 0.3);
}

#notice.info {
  color: var(--ok);
  background: rgba(70, 176, 118, 0.08);
  border: 1px solid rgba(70, 176, 118, 0.3);
}

.hidden {
  display: none !important;
}

/* ---- responsive ---- */
@media (max-width: 860px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .upload-panel {
    position: static;
  }
}

@media (max-width: 640px) {
  .app {
    padding: 0 14px 36px;
  }

  .topbar {
    padding: 14px 0 12px;
    margin-bottom: 16px;
  }

  .logo {
    width: 34px;
    height: 34px;
  }

  .brand {
    gap: 10px;
    min-width: 0;
  }

  .brand-text h1 {
    font-size: 16px;
  }

  .sub {
    font-size: 11px;
  }

  .topbar-actions {
    gap: 6px;
  }

  .topbar-actions .btn {
    padding: 8px 10px;
    font-size: 12px;
  }

  .panel {
    padding: 16px;
  }

  .dropzone {
    padding: 34px 16px;
  }

  .btn-block {
    padding: 13px;
  }

  /* 16px inputs prevent iOS auto-zoom on focus */
  .field input,
  .url-row input {
    font-size: 16px;
  }

  /* files table -> stacked cards */
  .table-wrap {
    overflow: visible;
    border: none;
    border-radius: 0;
    background: transparent;
  }

  .files-table {
    display: block;
    min-width: 0;
  }

  .files-table thead {
    display: none;
  }

  .files-table tbody {
    display: block;
  }

  .files-table tr {
    display: block;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 14px;
    margin-bottom: 10px;
  }

  .files-table tbody tr:last-child {
    margin-bottom: 0;
  }

  .files-table td {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 7px 0;
    border-bottom: 1px solid var(--border);
    font-size: 13px;
    white-space: normal;
  }

  .files-table td:last-child {
    border-bottom: none;
  }

  .files-table tbody tr:last-child td {
    border-bottom: 1px solid var(--border);
  }

  .files-table tbody tr:last-child td:last-child {
    border-bottom: none;
  }

  .files-table td[data-label]::before {
    content: attr(data-label);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--muted);
    flex-shrink: 0;
  }

  .file-name {
    flex-wrap: wrap;
  }

  .row-actions {
    justify-content: stretch;
  }

  .row-actions .btn {
    flex: 1;
    text-align: center;
    padding: 11px 8px;
    font-size: 13px;
  }
}