/* =========================================================
   Admin Backend — Shell + Components
   Extends tokens.css with admin-specific styles
   ========================================================= */

body.admin {
  background: #F3F1EC;
  min-height: 100vh;
}

.admin-shell {
  display: grid;
  grid-template-columns: 248px 1fr;
  min-height: 100vh;
}

/* Sidebar */
.admin-sidebar {
  background: var(--c-night);
  color: var(--c-paper);
  padding: 24px 16px;
  display: flex; flex-direction: column;
  position: sticky; top: 0;
  height: 100vh;
  overflow-y: auto;
}

.admin-sidebar__brand {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 12px 24px;
  border-bottom: 1px solid rgba(242,237,227,.08);
  margin-bottom: 16px;
}
.admin-sidebar__brand .mark {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--c-lime);
  color: var(--c-storm);
  display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 800;
  flex-shrink: 0;
}
.admin-sidebar__brand strong { font-family: var(--font-display); font-size: .98rem; letter-spacing: -0.01em; }
.admin-sidebar__brand small { display: block; color: rgba(242,237,227,.45); font-size: .68rem; letter-spacing: 0.14em; text-transform: uppercase; font-weight: 600; margin-top: 2px; }

.admin-nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.admin-nav__group {
  font-size: .66rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: rgba(242,237,227,.35);
  font-weight: 700;
  padding: 16px 12px 6px;
}
.admin-nav a {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px;
  border-radius: 8px;
  color: rgba(242,237,227,.7);
  font-size: .9rem;
  font-weight: 500;
  transition: background .12s, color .12s;
}
.admin-nav a:hover { background: rgba(242,237,227,.05); color: var(--c-paper); }
.admin-nav a.is-active {
  background: var(--c-storm-3);
  color: var(--c-paper);
  font-weight: 600;
  position: relative;
}
.admin-nav a.is-active::before {
  content: ""; position: absolute; left: 0; top: 8px; bottom: 8px; width: 3px;
  background: var(--c-lime); border-radius: 999px;
}
.admin-nav a .ico {
  width: 16px; height: 16px;
  display: grid; place-items: center;
  font-size: .9rem;
  opacity: .8;
}
.admin-nav a .count {
  margin-left: auto;
  background: rgba(182,255,58,.18);
  color: var(--c-lime);
  font-family: var(--font-mono);
  font-size: .7rem;
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 600;
}

.admin-sidebar__user {
  margin-top: 16px; padding-top: 16px;
  border-top: 1px solid rgba(242,237,227,.08);
  display: flex; align-items: center; gap: 10px;
}
.admin-sidebar__user .ava {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--c-lime);
  color: var(--c-storm);
  display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 700;
  font-size: .85rem;
}
.admin-sidebar__user strong { font-size: .85rem; }
.admin-sidebar__user small { display: block; color: rgba(242,237,227,.45); font-size: .72rem; font-family: var(--font-mono); }

/* Main area */
.admin-main {
  display: flex; flex-direction: column;
  min-width: 0;
}

.admin-topbar {
  background: white;
  border-bottom: 1px solid var(--c-paper-edge);
  padding: 12px 32px;
  display: flex; align-items: center; gap: 16px;
  position: sticky; top: 0; z-index: 20;
}
.admin-topbar__title { font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; letter-spacing: -0.01em; }
.admin-topbar__crumbs { font-family: var(--font-mono); font-size: .76rem; color: var(--c-ink-3); }
.admin-topbar__search {
  margin-left: auto;
  display: flex; gap: 8px; align-items: center;
  background: var(--c-paper);
  border: 1px solid var(--c-paper-edge);
  border-radius: 999px;
  padding: 6px 14px;
  width: 320px;
}
.admin-topbar__search input { flex: 1; border: none; outline: none; font: inherit; background: transparent; font-size: .88rem; }
.admin-topbar__search kbd {
  font-family: var(--font-mono); font-size: .68rem;
  background: white; border: 1px solid var(--c-paper-edge); border-radius: 4px;
  padding: 2px 6px;
  color: var(--c-ink-3);
}
.admin-topbar__bell {
  position: relative;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--c-paper); border: 1px solid var(--c-paper-edge);
  display: grid; place-items: center;
}
.admin-topbar__bell::after {
  content: ""; position: absolute; top: 6px; right: 8px;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--c-warn-4);
  border: 2px solid white;
}

.admin-content { padding: 32px; }

/* Admin page head */
.admin-pagehead {
  display: flex; align-items: end; justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}
.admin-pagehead h1 { font-size: 1.8rem; }
.admin-pagehead .actions { display: flex; gap: 8px; }

/* Card */
.acard {
  background: white;
  border: 1px solid var(--c-paper-edge);
  border-radius: var(--r-lg);
  padding: 24px;
}
.acard__head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 16px;
}
.acard__head h3 { font-size: 1rem; letter-spacing: -0.01em; }
.acard__head .actions { display: flex; gap: 6px; }

/* KPI tile */
.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.kpi {
  background: white;
  border: 1px solid var(--c-paper-edge);
  border-radius: var(--r-lg);
  padding: 22px 24px;
  position: relative;
  overflow: hidden;
}
.kpi__label { font-size: .74rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--c-ink-3); font-weight: 700; }
.kpi__value {
  font-family: var(--font-display); font-weight: 700;
  font-size: 2.2rem; line-height: 1; letter-spacing: -0.02em;
  margin: 12px 0 6px;
}
.kpi__value small { font-family: var(--font-body); font-size: .9rem; font-weight: 500; color: var(--c-ink-3); margin-left: 4px; }
.kpi__delta {
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--c-success);
}
.kpi__delta.is-down { color: var(--c-danger); }
.kpi--featured {
  background: var(--c-storm);
  color: var(--c-paper);
  border: none;
}
.kpi--featured .kpi__label { color: var(--c-lime); }
.kpi--featured .kpi__value small { color: rgba(242,237,227,.5); }
.kpi--featured .kpi__delta { color: var(--c-lime); }
.kpi__chart {
  position: absolute; bottom: 0; right: 0; left: 50%; height: 50%;
  opacity: .5;
}

/* Table */
.atable { width: 100%; border-collapse: collapse; font-size: .9rem; }
.atable th, .atable td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--c-paper-edge);
}
.atable tbody tr:last-child td { border-bottom: none; }
.atable th {
  background: rgba(15,34,53,.04);
  font-size: .74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-ink-3);
  font-weight: 700;
}
.atable tbody tr:hover { background: rgba(15,34,53,.02); }
.atable td.mono { font-family: var(--font-mono); font-size: .85rem; }
.atable td.num { text-align: right; font-family: var(--font-mono); }
.atable .actions { text-align: right; }

.atable__user { display: flex; align-items: center; gap: 10px; }
.atable__user .ava {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--c-storm);
  color: var(--c-lime);
  display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 700;
  font-size: .82rem;
}
.atable__user .name { font-weight: 600; }
.atable__user .email { color: var(--c-ink-3); font-size: .8rem; font-family: var(--font-mono); }

/* Filter bar */
.filter-bar {
  background: white;
  border: 1px solid var(--c-paper-edge);
  border-radius: var(--r-md);
  padding: 14px 18px;
  display: flex; gap: 12px; align-items: center; flex-wrap: wrap;
  margin-bottom: 16px;
}
.filter-bar input.input, .filter-bar select.select { padding: 8px 12px; font-size: .85rem; max-width: 280px; }
.filter-bar .chips { display: flex; gap: 6px; }
.filter-bar .chip {
  padding: 5px 12px;
  background: var(--c-paper-2);
  border-radius: 999px;
  font-size: .8rem;
  color: var(--c-ink-2);
  display: inline-flex; align-items: center; gap: 6px;
  border: 1px solid var(--c-paper-edge);
  cursor: pointer;
}
.filter-bar .chip.is-active { background: var(--c-storm); color: var(--c-paper); border-color: var(--c-storm); }

@media (max-width: 980px) {
  .admin-shell { grid-template-columns: 1fr; }
  .admin-sidebar { position: static; height: auto; }
  .admin-topbar__search { display: none; }
  .kpi-grid { grid-template-columns: 1fr 1fr; }
}