:root {
  --bg: #f6f3ec;
  --paper: #fdfcf8;
  --ink: #1a1a1a;
  --muted: #6b6b6b;
  --rule: #d8d3c5;
  --accent: #8b1a1a;
  --hover: #efeadd;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --serif: "Times New Roman", Times, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.4;
}

a { color: var(--accent); }

/* topbar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
  position: sticky;
  top: 0;
  z-index: 5;
}
.brand {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--accent);
}
.meta { color: var(--muted); font-family: var(--mono); font-size: 12px; }

/* layout */
.layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: calc(100vh - 49px);
}

.sidebar {
  background: var(--bg);
  border-right: 1px solid var(--rule);
  padding: 18px 12px;
}

.filter-group { margin-bottom: 18px; }
.filter-label {
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  padding: 6px 12px 4px;
}
.filter {
  display: block;
  width: 100%;
  text-align: left;
  background: transparent;
  border: 0;
  padding: 6px 12px;
  margin-bottom: 1px;
  font-size: 13px;
  color: var(--ink);
  cursor: pointer;
  border-radius: 0 14px 14px 0;
  font-family: inherit;
}
.filter:hover { background: var(--hover); }
.filter.active {
  background: #e9ddd0;
  color: var(--accent);
  font-weight: 600;
}

/* inbox */
.inbox { background: var(--paper); }
.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 20px;
  border-bottom: 1px solid var(--rule);
  font-size: 12px;
  color: var(--muted);
  font-family: var(--mono);
}
.toolbar select {
  font-family: var(--mono);
  font-size: 12px;
  border: 1px solid var(--rule);
  background: var(--paper);
  padding: 3px 6px;
  color: var(--ink);
}

.rows { list-style: none; margin: 0; padding: 0; }
.row {
  display: grid;
  grid-template-columns: 28px 60px 1fr 60px 80px 110px;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  border-bottom: 1px solid var(--rule);
  cursor: pointer;
  font-size: 13px;
}
.row:hover { background: var(--hover); }

.row-icon {
  font-size: 14px;
  color: var(--muted);
  text-align: center;
}
.row-icon.video { color: var(--accent); }
.row-type {
  font-family: var(--mono);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.row-subject {
  font-family: var(--mono);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--ink);
}
.row-year, .row-size, .row-date {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}
.row-date { text-align: right; }

.empty {
  padding: 60px 20px;
  text-align: center;
  color: var(--muted);
  font-family: var(--mono);
}
.empty code {
  background: var(--bg);
  padding: 2px 6px;
  border: 1px solid var(--rule);
  border-radius: 3px;
}

/* viewer */
.viewer {
  position: fixed;
  inset: 0;
  background: rgba(20, 18, 14, 0.94);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
}
.viewer[hidden] { display: none; }
.viewer-stage {
  max-width: 90vw;
  max-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.viewer-stage img,
.viewer-stage video {
  max-width: 90vw;
  max-height: 80vh;
  display: block;
  background: #000;
}

.viewer-meta {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  color: #e8e3d4;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  background: rgba(0,0,0,0.4);
  padding: 6px 14px;
  border: 1px solid rgba(255,255,255,0.08);
}
.m-sep { color: #8a8472; margin: 0 6px; }
.m-name { color: #fff; }

.viewer-close {
  position: absolute;
  top: 14px;
  right: 18px;
  background: transparent;
  border: 0;
  color: #e8e3d4;
  font-size: 32px;
  cursor: pointer;
  line-height: 1;
}
.viewer-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: transparent;
  border: 0;
  color: #e8e3d4;
  font-size: 48px;
  cursor: pointer;
  padding: 8px 18px;
  line-height: 1;
}
.viewer-nav.prev { left: 12px; }
.viewer-nav.next { right: 12px; }
.viewer-nav:hover, .viewer-close:hover { color: #fff; }

/* login */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
}
.login-card {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 36px 32px;
  width: min(360px, 90vw);
  text-align: center;
}
.login-mark {
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 6px;
}
.login-sub {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  margin: 0 0 24px;
}
.login-card form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.login-card input[type="password"] {
  font-family: var(--mono);
  font-size: 14px;
  padding: 10px 12px;
  border: 1px solid var(--rule);
  background: var(--bg);
  color: var(--ink);
}
.login-card input[type="password"]:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
}
.login-card button {
  font-family: var(--mono);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 10px;
  background: var(--accent);
  color: white;
  border: 0;
  cursor: pointer;
}
.login-card button:hover { background: #6f1414; }
.login-error {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 12px;
  margin: 14px 0 0;
}

/* responsive */
@media (max-width: 720px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--rule);
    display: flex;
    flex-wrap: wrap;
    padding: 8px;
    gap: 4px;
  }
  .filter-group { display: contents; }
  .filter-label { display: none; }
  .filter {
    width: auto;
    border-radius: 14px;
    padding: 4px 12px;
    font-size: 12px;
  }
  .row {
    grid-template-columns: 24px 1fr 90px;
    gap: 8px;
    font-size: 12px;
  }
  .row-type, .row-year, .row-size { display: none; }
  .topbar { padding: 10px 14px; }
  .brand { font-size: 18px; }
}