/* ═══════════════════════════════════════
   USAGE PAGE — Professional Redesign
   ═══════════════════════════════════════ */

:root {
  --accent: #860505;
  --accent-hover: #a00707;
  --accent-soft: rgba(134,5,5,.08);
  --bg: #08080f;
  --bg2: #0e0e18;
  --bg3: #14141f;
  --bg4: #1a1a28;
  --border: #1e1e2e;
  --border2: #2a2a3a;
  --text: #e8e8f0;
  --text2: #a0a0b8;
  --text3: #6a6a80;
  --ok: #1db954;
  --warn: #f0a030;
  --err: #e04040;
}

/* ── SVG icon classes ── */
.usg-ico    { width: 18px; height: 18px; flex-shrink: 0; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.usg-ico-sm { width: 14px; height: 14px; flex-shrink: 0; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.usg-ico-lg { width: 24px; height: 24px; flex-shrink: 0; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* ── Logo ── */
.usg-logo { width: 40%; height: auto; }
@media (min-width: 768px) { .usg-logo { width: 20%; } }

/* ── Nav ── */
.usg-nav-link {
  color: var(--text2); text-decoration: none; padding: 6px 14px; border-radius: 8px;
  font-size: 13px; font-weight: 500; transition: all .2s; display: inline-flex; align-items: center; gap: 6px;
}
.usg-nav-link:hover { color: var(--text); background: var(--bg3); }
.usg-nav-link.active { color: var(--accent); background: var(--accent-soft); }

/* ── Credits ── */
.usg-credits-wrap {
  display: flex; align-items: center; gap: 6px; padding: 5px 12px; border-radius: 8px;
  background: var(--accent-soft); border: 1px solid rgba(134,5,5,.15);
}
.usg-credits-label { font-size: 11px; color: var(--text3); }
.usg-credits-val   { font-size: 14px; font-weight: 700; color: var(--accent); }

/* ── Logout ── */
.usg-logout-btn {
  display: inline-flex; align-items: center; justify-content: center; width: 32px; height: 32px;
  border-radius: 8px; border: 1px solid var(--border); background: var(--bg3);
  color: var(--text3); cursor: pointer; transition: all .2s;
}
.usg-logout-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ── Spinner ── */
.spin {
  display: inline-block; width: 16px; height: 16px;
  border: 2px solid var(--border2); border-top-color: var(--accent); border-radius: 50%;
  animation: spinAnim .6s linear infinite;
}
@keyframes spinAnim { to { transform: rotate(360deg); } }

/* ── Page layout ── */
.usage-page { max-width: 960px; margin: 0 auto; padding: 32px 24px 80px; }

.usage-header { margin-bottom: 28px; }
.usage-title {
  font-size: 26px; font-weight: 800; margin: 0 0 8px; display: flex; align-items: center; gap: 10px; color: var(--text);
}
.usage-sub { font-size: 14px; color: var(--text3); margin: 0; }

/* ── Summary cards ── */
.usage-summary { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 28px; }
.usage-sum-card {
  display: flex; align-items: center; gap: 12px; background: var(--bg2); border: 1px solid var(--border);
  border-radius: 12px; padding: 16px; transition: border-color 0.2s;
}
.usage-sum-card:hover { border-color: var(--accent); }

.usc-icon {
  width: 44px; height: 44px; border-radius: 12px; display: flex; align-items: center;
  justify-content: center; flex-shrink: 0;
}
.usc-val { font-size: 22px; font-weight: 800; color: var(--text); line-height: 1.2; }
.usc-lbl { font-size: 10px; color: var(--text3); text-transform: uppercase; letter-spacing: 0.5px; font-weight: 700; }

/* ── View toggle ── */
.usage-view-toggle {
  display: flex; gap: 0; background: var(--bg2); border: 1px solid var(--border);
  border-radius: 10px; padding: 3px; margin-bottom: 20px; width: fit-content;
}
.uvt-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 20px; font-size: 13px; font-weight: 600; background: none;
  border: none; border-radius: 8px; color: var(--text3); cursor: pointer; transition: all 0.2s;
}
.uvt-btn:hover { color: var(--text); }
.uvt-btn.active { background: var(--accent); color: #fff; }

/* ── Loading / empty ── */
.usage-loading {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  padding: 60px 20px; color: var(--text3); font-size: 14px;
}
.usage-empty { text-align: center; padding: 60px 20px; }
.usage-empty-icon { margin-bottom: 14px; }
.usage-empty-title { font-size: 18px; font-weight: 700; margin-bottom: 6px; color: var(--text); }
.usage-empty-sub   { font-size: 13px; color: var(--text3); }

/* ── Session cards ── */
.usage-cards { display: flex; flex-direction: column; gap: 10px; }
.usage-session-card {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  background: var(--bg2); border: 1px solid var(--border); border-radius: 12px;
  padding: 16px 20px; transition: all 0.2s;
}
.usage-session-card:hover { border-color: var(--accent); background: var(--bg3); }

.usc-left { display: flex; align-items: center; gap: 14px; min-width: 0; flex: 1; }

.usc-status-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.usc-status-dot.active { background: var(--ok); animation: pulse 1.5s infinite; }
.usc-status-dot.ended  { background: var(--text3); }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .4; } }

.usc-details { min-width: 0; }
.usc-model {
  font-size: 14px; font-weight: 700; color: var(--text);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.usc-meta { display: flex; gap: 6px; font-size: 12px; color: var(--text3); margin-top: 3px; flex-wrap: wrap; }
.usc-meta-dot { width: 3px; height: 3px; border-radius: 50%; background: var(--text3); align-self: center; }

.usc-right { display: flex; align-items: center; gap: 24px; flex-shrink: 0; }
.usc-stat-col { display: flex; flex-direction: column; align-items: flex-end; gap: 2px; }
.usc-stat-big { font-size: 16px; font-weight: 700; color: var(--text); }
.usc-stat-sm  { font-size: 10px; color: var(--text3); text-transform: uppercase; letter-spacing: 0.3px; font-weight: 700; }

/* ── Credit log table ── */
.usage-log-table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 12px; }
.usage-log-table { width: 100%; border-collapse: collapse; }
.usage-log-table th {
  text-align: left; font-size: 10px; font-weight: 700; color: var(--text3); text-transform: uppercase;
  letter-spacing: 0.5px; padding: 12px 16px; border-bottom: 1px solid var(--border); background: var(--bg3);
}
.usage-log-table td {
  padding: 12px 16px; font-size: 13px; color: var(--text2); border-bottom: 1px solid var(--border);
}
.usage-log-table tr:last-child td { border-bottom: none; }
.usage-log-table tr:hover td { background: var(--bg3); }
.usage-log-table .log-credits { color: var(--warn); font-weight: 700; }
.usage-log-table .log-model   { color: var(--accent); font-weight: 600; }
.usage-log-table .log-desc    { font-size: 11px; color: var(--text3); }

/* ── Pagination ── */
.usage-pagination { display: flex; align-items: center; justify-content: center; gap: 14px; margin-top: 24px; }
.usg-pg-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 18px; font-size: 13px; font-weight: 600; background: var(--bg2);
  border: 1px solid var(--border); border-radius: 8px; color: var(--text2); cursor: pointer; transition: all 0.2s;
}
.usg-pg-btn:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.usg-pg-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.usg-pg-info { font-size: 13px; color: var(--text3); font-weight: 600; min-width: 80px; text-align: center; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .usage-summary { grid-template-columns: 1fr 1fr; }
  .usc-val { font-size: 18px; }
  .usage-session-card { flex-direction: column; align-items: stretch; gap: 10px; }
  .usc-right { justify-content: space-between; }
}
@media (max-width: 480px) {
  .usage-summary { grid-template-columns: 1fr; }
  .usage-page { padding: 20px 16px 60px; }
}