/* ── Reset & base ──────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0f1117;
  --surface:   #1a1d27;
  --border:    #2a2d3a;
  --accent:    #6c8ef5;
  --accent-h:  #8aabff;
  --text:      #e2e5f0;
  --text-dim:  #8b8fa8;
  --green:     #4caf8a;
  --red:       #e05c5c;
  --yellow:    #d4a94a;
  --radius:    10px;
}

html { font-size: 15px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.5;
  min-height: 100vh;
}

/* ── Header ─────────────────────────────────────────────────────────────────── */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  height: 52px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.logo { font-weight: 700; font-size: 1.05rem; letter-spacing: .3px; }
nav   { display: flex; align-items: center; gap: .75rem; }
.nav-user { color: var(--text-dim); font-size: .875rem; }

/* ── Main layout ─────────────────────────────────────────────────────────────── */
main {
  max-width: 860px;
  margin: 2rem auto;
  padding: 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* ── Upload card ─────────────────────────────────────────────────────────────── */
.upload-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.drop-area {
  padding: 3rem 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
  cursor: pointer;
  transition: background .15s;
  text-align: center;
}
.drop-area:hover,
.drop-area.drag-over {
  background: rgba(108, 142, 245, .07);
}
.drop-area.drag-over { border-color: var(--accent); }
.drop-icon { font-size: 2.5rem; line-height: 1; opacity: .6; user-select: none; }
.drop-area p { color: var(--text); font-size: 1rem; }

.progress-wrap {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: .6rem;
}
.filename-display {
  font-size: .875rem;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.progress-track {
  height: 8px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-h));
  border-radius: 99px;
  transition: width .1s linear;
  width: 0%;
}
.progress-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.progress-text {
  font-size: .8rem;
  color: var(--text-dim);
}
.progress-speed {
  font-size: .8rem;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
  min-width: 6rem;
  text-align: right;
  transition: color .2s;
}
.progress-speed.stalled {
  color: var(--yellow);
}

/* ── Upload result ───────────────────────────────────────────────────────────── */
.upload-result {
  padding: 1.75rem 2rem;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.result-check {
  color: var(--green);
  font-weight: 600;
  font-size: 1rem;
}
.result-checksum {
  font-family: monospace;
  font-size: .72rem;
  color: var(--text-dim);
  word-break: break-all;
}
.result-checksum.checksum-ok::before {
  content: '✓ ';
  color: var(--green);
}
.link-row {
  display: flex;
  align-items: center;
  gap: .5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: .5rem .75rem;
}
.link-row a {
  flex: 1;
  color: var(--accent);
  text-decoration: none;
  font-size: .875rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.link-row a:hover { color: var(--accent-h); text-decoration: underline; }
.btn-copy {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-dim);
  font-size: 1rem;
  padding: .1rem .3rem;
  border-radius: 4px;
  transition: color .15s;
}
.btn-copy:hover { color: var(--text); }

/* ── Files section ───────────────────────────────────────────────────────────── */
.files-section { display: flex; flex-direction: column; gap: 1rem; }
.files-section h2 { font-size: 1rem; font-weight: 600; }

.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: .875rem;
}
th {
  text-align: left;
  color: var(--text-dim);
  font-weight: 500;
  padding: .5rem .75rem;
  border-bottom: 1px solid var(--border);
}
td {
  padding: .55rem .75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,.02); }

.fname { max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fsize { color: var(--text-dim); white-space: nowrap; }
.fdate { color: var(--text-dim); white-space: nowrap; font-size: .8rem; }
.flink { max-width: 240px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.flink a { color: var(--accent); text-decoration: none; font-size: .8rem; }
.flink a:hover { color: var(--accent-h); text-decoration: underline; }
.fdel { text-align: right; }

.del-btn {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-dim);
  font-size: 1rem;
  padding: .2rem .4rem;
  border-radius: 4px;
  transition: color .15s;
}
.del-btn:hover { color: var(--red); }

/* ── Login ───────────────────────────────────────────────────────────────────── */
.login-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  gap: 1.25rem;
}
.login-wrap h1 { font-size: 1.5rem; font-weight: 700; }
.login-wrap form {
  display: flex;
  flex-direction: column;
  gap: .75rem;
  width: 100%;
  max-width: 320px;
}
.login-wrap input {
  padding: .6rem .85rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: .95rem;
  outline: none;
  transition: border-color .15s;
}
.login-wrap input:focus { border-color: var(--accent); }
.login-wrap button[type="submit"] {
  padding: .65rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s;
}
.login-wrap button[type="submit"]:hover { background: var(--accent-h); }
.error-msg { color: var(--red); font-size: .875rem; }

/* ── Footer ──────────────────────────────────────────────────────────────────── */
footer {
  text-align: center;
  padding: 1.25rem 1rem 2rem;
  margin-top: .5rem;
}
.storage-text       { font-size: .8rem; color: var(--text-dim); }
.storage-text.storage-caution { color: var(--yellow); }
.storage-text.storage-warn    { color: var(--red); }

/* ── Shared utilities ────────────────────────────────────────────────────────── */
.btn-link {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--accent);
  font-size: inherit;
  padding: 0;
  text-decoration: underline;
}
.btn-link:hover { color: var(--accent-h); }

.badge {
  display: inline-block;
  background: var(--border);
  color: var(--text-dim);
  font-size: .75rem;
  font-weight: 600;
  padding: .1rem .45rem;
  border-radius: 99px;
}

.hint-small { font-size: .8rem; color: var(--text-dim); }
.empty      { color: var(--text-dim); font-size: .875rem; }

/* ── Folders ──────────────────────────────────────────────────────────────── */
.folders-section { margin-bottom: .75rem; }

.folders-bar {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  align-items: center;
}

.folder-pill {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .3rem .75rem;
  border-radius: 99px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  font-size: .85rem;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.folder-pill:hover       { border-color: var(--accent); }
.folder-pill.active      { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 15%, transparent); }

.folder-count {
  font-size: .7rem;
  background: var(--border);
  color: var(--text-dim);
  padding: .05rem .4rem;
  border-radius: 99px;
  min-width: 1.4rem;
  text-align: center;
}

.folder-del {
  all: unset;
  cursor: pointer;
  font-size: .7rem;
  color: var(--text-dim);
  padding: 0 .1rem;
  line-height: 1;
}
.folder-del:hover { color: var(--red, #e55); }

.folder-new {
  padding: .3rem .75rem;
  border-radius: 99px;
  border: 1px dashed var(--border);
  background: transparent;
  color: var(--accent);
  font-size: .85rem;
  cursor: pointer;
}
.folder-new:hover { border-color: var(--accent); }

.new-folder-form {
  display: flex;
  gap: .5rem;
  align-items: center;
  margin-top: .5rem;
  flex-wrap: wrap;
}
.new-folder-form input[type=text] {
  padding: .35rem .6rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: .875rem;
  width: 16rem;
}
.new-folder-form button:not(.btn-link) {
  padding: .35rem .9rem;
  border-radius: 6px;
  border: none;
  background: var(--accent);
  color: #fff;
  font-size: .875rem;
  cursor: pointer;
}

.upload-folder-row {
  display: flex;
  align-items: center;
  gap: .5rem;
  margin-top: .75rem;
  justify-content: center;
}
.folder-select {
  padding: .25rem .5rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: .8rem;
  max-width: 16rem;
}