:root {
  --bg: #0f1b2d;
  --bg2: #16263d;
  --card: #1b3047;
  --card2: #213a55;
  --accent: #2bb3c0;
  --accent2: #3dd6a0;
  --txt: #e7eef5;
  --muted: #93a4b8;
  --err: #ff6b6b;
  --ok: #3dd6a0;
  --docx: #4a90d9;
  --pdf: #e0533d;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  background: radial-gradient(1200px 600px at 20% -10%, #1b3a52 0%, var(--bg) 55%);
  color: var(--txt);
  min-height: 100vh;
  padding: 24px 16px 60px;
}
body.center { display: flex; align-items: center; justify-content: center; }

.wrap { max-width: 720px; margin: 0 auto; }
.wrap.narrow { max-width: 460px; }

/* top nav */
.topnav {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 14px; font-size: 14px;
}
.topnav .brand { color: var(--muted); }
.topnav .navlinks a {
  color: var(--accent); text-decoration: none; margin-left: 14px;
}
.topnav .navlinks a:hover { color: var(--accent2); }

header { text-align: center; margin-bottom: 22px; }
header h1 { margin: 0 0 6px; font-size: 30px; font-weight: 700; letter-spacing: -0.5px; }
header .sub { margin: 0; color: var(--muted); font-size: 14px; }

code {
  background: #0c1828; padding: 1px 6px; border-radius: 5px;
  font-size: 0.88em; color: #cfe8ee;
}

.card {
  background: linear-gradient(180deg, var(--card), var(--card2));
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 14px;
  padding: 18px 18px;
  margin-bottom: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 7px; }

input[type="text"], input[type="password"] {
  width: 100%; padding: 12px 14px; border-radius: 9px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: #0c1828; color: var(--txt); font-size: 15px; outline: none;
  transition: border-color .15s, box-shadow .15s;
}
input[type="text"]:focus, input[type="password"]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(43, 179, 192, 0.18);
}

.hint { margin: 7px 0 16px; font-size: 12px; color: var(--muted); }
.small { font-size: 12px; }
.center-msg { text-align: center; }

.check {
  display: flex; align-items: center; gap: 9px; margin-bottom: 16px;
  cursor: pointer; color: var(--txt); font-size: 14px;
}
.check input { width: 17px; height: 17px; accent-color: var(--accent); }
.check small { color: var(--muted); }

button {
  width: 100%; padding: 13px; font-size: 16px; font-weight: 600;
  color: #06212a; background: linear-gradient(180deg, var(--accent2), var(--accent));
  border: none; border-radius: 10px; cursor: pointer;
  transition: transform .08s, filter .15s;
}
button:hover { filter: brightness(1.08); }
button:active { transform: translateY(1px); }
button:disabled { opacity: .55; cursor: not-allowed; filter: grayscale(.2); }

/* login / settings */
.gate { max-width: 360px; text-align: center; }
.gate h1 { margin: 6px 0 16px; font-size: 24px; }
.gate .lock { font-size: 40px; }
.gate label, .card label[for="old"], .card label[for="new"] { text-align: left; }
.card h1 { margin: 0 0 16px; font-size: 22px; }

.ok { color: var(--ok); background: rgba(61,214,160,.1); padding: 9px 12px; border-radius: 8px; font-size: 13px; }
.err { color: var(--err); }
.center-msg.err { background: rgba(255,107,107,.1); padding: 9px 12px; border-radius: 8px; font-size: 13px; }

/* status */
.status .stage-row { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; font-size: 14px; }
.spin {
  width: 15px; height: 15px; border: 2px solid rgba(255,255,255,.2);
  border-top-color: var(--accent); border-radius: 50%;
  animation: sp .8s linear infinite; flex: 0 0 auto;
}
@keyframes sp { to { transform: rotate(360deg); } }
.pct { margin-left: auto; color: var(--muted); font-variant-numeric: tabular-nums; }

.bar { height: 8px; background: #0c1828; border-radius: 6px; overflow: hidden; }
.bar > div {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transition: width .3s ease;
}

.title { margin: 14px 0 8px; font-size: 14px; color: #cfe8ee; }
.links { display: flex; flex-direction: column; gap: 9px; margin-top: 4px; }
.dlink {
  display: block; text-decoration: none; padding: 11px 14px; border-radius: 9px;
  font-size: 14px; color: var(--txt); border: 1px solid rgba(255,255,255,.08);
  background: #0c1828; transition: background .15s, border-color .15s;
}
.dlink span { color: var(--muted); }
.dlink:hover { background: #122435; border-color: var(--accent); }
.dlink.docx { border-left: 3px solid var(--docx); }
.dlink.pdf  { border-left: 3px solid var(--pdf); }

/* file list */
h2 { margin: 0 0 12px; font-size: 16px; }
.muted { color: var(--muted); font-size: 13px; }
.file {
  display: flex; align-items: center; gap: 11px; text-decoration: none; color: var(--txt);
  padding: 10px 12px; border-radius: 9px; border: 1px solid rgba(255,255,255,.06);
  background: #0c1828; margin-bottom: 8px; transition: background .15s, border-color .15s;
}
.file:hover { background: #122435; border-color: var(--accent); }
.file .ic { font-size: 18px; }
.file .fn { flex: 1; font-size: 14px; word-break: break-all; }
.file .sz { color: var(--muted); font-size: 12px; white-space: nowrap; }

footer { text-align: center; color: var(--muted); margin-top: 6px; }
.hidden { display: none !important; }