:root {
  --amarillo: #FFCC00;
  --amarillo-dark: #d6a900;
  --bg: #1a1a1a;
  --bg2: #242424;
  --bg3: #2e2e2e;
  --txt: #f1f1f1;
  --txt-dim: #9a9a9a;
  --border: #3a3a3a;
  --ok: #4ade80;
  --err: #ef4444;
  --warn: #f59e0b;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--bg); color: var(--txt);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 15px; min-height: 100vh; }
a { color: var(--amarillo); text-decoration: none; }
a:hover { text-decoration: underline; }

header.topbar { background: #000; border-bottom: 3px solid var(--amarillo);
  padding: 14px 24px; display: flex; align-items: center; gap: 18px; }
header.topbar img.logo { height: 42px; }
header.topbar .title { font-size: 18px; font-weight: 700; letter-spacing: 1px;
  color: var(--amarillo); text-transform: uppercase; }
header.topbar .spacer { flex: 1; }
header.topbar .userinfo { color: var(--txt-dim); font-size: 14px; }
header.topbar .userinfo strong { color: var(--txt); }
header.topbar a.logout { color: var(--txt-dim); margin-left: 16px;
  border: 1px solid var(--border); padding: 6px 12px; border-radius: 4px; }
header.topbar a.logout:hover { color: var(--err); border-color: var(--err);
  text-decoration: none; }

main { max-width: 1200px; margin: 0 auto; padding: 24px; }

.card { background: var(--bg2); border: 1px solid var(--border); border-radius: 8px;
  padding: 20px; margin-bottom: 20px; }
.card h2 { margin: 0 0 16px 0; font-size: 16px; color: var(--amarillo);
  text-transform: uppercase; letter-spacing: 1px; }

/* Login */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%); }
.login-box { background: var(--bg2); border: 1px solid var(--border); border-radius: 12px;
  padding: 40px 48px; width: 380px; max-width: 90vw; }
.login-box img { display: block; margin: 0 auto 12px auto; max-width: 220px; max-height: 90px; }
.login-box h1 { text-align: center; font-size: 14px; letter-spacing: 2px;
  color: var(--amarillo); text-transform: uppercase; margin: 0 0 28px 0; }
.login-box label { display: block; font-size: 12px; text-transform: uppercase;
  letter-spacing: 1px; color: var(--txt-dim); margin: 14px 0 6px 0; }
.login-box input { width: 100%; background: var(--bg); border: 1px solid var(--border);
  border-radius: 4px; padding: 10px 12px; color: var(--txt); font-size: 15px;
  font-family: inherit; }
.login-box input:focus { outline: none; border-color: var(--amarillo); }
.login-box button { width: 100%; background: var(--amarillo); color: #000;
  border: none; border-radius: 4px; padding: 12px; font-weight: 700; cursor: pointer;
  text-transform: uppercase; letter-spacing: 1px; margin-top: 24px; font-size: 14px; }
.login-box button:hover { background: var(--amarillo-dark); }
.login-box .err { background: #3a1a1a; color: #fca5a5; border: 1px solid #7f1d1d;
  padding: 10px 14px; border-radius: 4px; margin-top: 16px; font-size: 13px; }

/* Uploader */
.drop-area { border: 2px dashed var(--border); border-radius: 8px; padding: 32px;
  text-align: center; background: var(--bg3); transition: all 0.2s;
  cursor: pointer; min-height: 140px; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 10px; }
.drop-area.over { border-color: var(--amarillo); background: #2a280f; }
.drop-area .ico { font-size: 36px; opacity: 0.6; }
.drop-area p { margin: 0; color: var(--txt-dim); }
.drop-area .pick { color: var(--amarillo); cursor: pointer; text-decoration: underline; }

.uploads-list { margin-top: 16px; }
.upload-item { background: var(--bg3); border-radius: 6px; padding: 12px 16px;
  margin-bottom: 8px; }
.upload-item .name { font-weight: 600; margin-bottom: 6px; word-break: break-all; }
.upload-item .meta { font-size: 12px; color: var(--txt-dim); margin-bottom: 6px; }
.upload-item .bar-wrap { background: var(--bg); height: 8px; border-radius: 4px;
  overflow: hidden; margin-bottom: 4px; }
.upload-item .bar { background: var(--amarillo); height: 100%; width: 0%;
  transition: width 0.3s; }
.upload-item .status { font-size: 12px; }
.upload-item .status.ok { color: var(--ok); }
.upload-item .status.err { color: var(--err); }
.upload-item .actions { margin-top: 6px; }
.upload-item button { background: var(--bg2); border: 1px solid var(--border);
  color: var(--txt); padding: 4px 10px; border-radius: 4px; cursor: pointer;
  font-size: 12px; }
.upload-item button:hover { border-color: var(--amarillo); }

/* Tabla */
table.files { width: 100%; border-collapse: collapse; margin-top: 8px; }
table.files th { text-align: left; padding: 10px 12px; background: var(--bg3);
  color: var(--amarillo); font-size: 12px; text-transform: uppercase;
  letter-spacing: 1px; border-bottom: 1px solid var(--border); }
table.files td { padding: 10px 12px; border-bottom: 1px solid var(--border);
  font-size: 14px; vertical-align: middle; }
table.files tr:hover td { background: var(--bg3); }
table.files .name { font-weight: 500; word-break: break-all; }
table.files .size { text-align: right; color: var(--txt-dim); white-space: nowrap; }
table.files .when { color: var(--txt-dim); white-space: nowrap; font-size: 13px; }
table.files .actions { white-space: nowrap; text-align: right; }
table.files .actions a, table.files .actions button { display: inline-block;
  padding: 5px 10px; border-radius: 4px; font-size: 12px; margin-left: 6px;
  text-decoration: none; cursor: pointer; }
table.files .dl { background: var(--amarillo); color: #000; font-weight: 600; border: none; }
table.files .dl:hover { background: var(--amarillo-dark); text-decoration: none; }
table.files .del { background: transparent; color: var(--err); border: 1px solid var(--border); }
table.files .del:hover { border-color: var(--err); }

.empty { text-align: center; padding: 30px; color: var(--txt-dim); font-style: italic; }

.summary { display: flex; gap: 24px; flex-wrap: wrap; margin-bottom: 4px; }
.summary .item { background: var(--bg3); border-radius: 6px; padding: 10px 18px;
  font-size: 13px; }
.summary .item strong { color: var(--amarillo); font-size: 16px; margin-right: 6px; }

/* Admin */
.user-block { margin-bottom: 28px; }
.user-block .uhead { display: flex; align-items: center; gap: 14px;
  padding: 10px 16px; background: var(--bg3); border-radius: 6px 6px 0 0;
  border-bottom: 1px solid var(--amarillo); }
.user-block .uhead .badge { background: var(--amarillo); color: #000;
  padding: 2px 10px; border-radius: 12px; font-size: 11px; font-weight: 700;
  text-transform: uppercase; }
.user-block .uhead .uname { font-weight: 700; font-size: 16px; }
.user-block .uhead .uinfo { color: var(--txt-dim); font-size: 13px; margin-left: auto; }

.notice { padding: 10px 16px; background: #2a280f; border-left: 3px solid var(--amarillo);
  border-radius: 4px; font-size: 13px; color: var(--txt-dim); margin-bottom: 16px; }

@media (max-width: 640px) {
  header.topbar { flex-wrap: wrap; padding: 10px 14px; }
  header.topbar .title { font-size: 14px; }
  main { padding: 12px; }
  table.files th, table.files td { padding: 8px 6px; font-size: 13px; }
}