/* ============================================================
   Prism Backstage — Main Stylesheet
   Dark luxury editorial aesthetic
   DM Serif Display + DM Sans
   ============================================================ */

*, *::before, *::after { box-sizing: border-box; }

:root {
  --amber:       #f59e0b;
  --amber-dim:   rgba(245,158,11,0.15);
  --amber-glow:  rgba(245,158,11,0.07);
  --bg:          #0d0d0f;
  --surface:     #141416;
  --surface2:    #1a1a1e;
  --surface3:    #202026;
  --border:      rgba(255,255,255,0.07);
  --border2:     rgba(255,255,255,0.04);
  --text:        #e5e7eb;
  --text2:       #9ca3af;
  --muted:       #6b7280;
  --success:     #10b981;
  --warning:     #f59e0b;
  --danger:      #ef4444;
  --info:        #3b82f6;
  --sidebar-w:   240px;
  --radius:      8px;
  --radius-lg:   12px;
}

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ---- Layout ---- */
.bs-sidebar {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: var(--sidebar-w);
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 200;
  transition: transform 0.25s ease;
}

.bs-main {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.bs-content {
  flex: 1;
  padding: 2rem 2.5rem;
  max-width: 1200px;
}

/* ---- Logo ---- */
.bs-sidebar__logo {
  padding: 1.5rem 1.25rem 1.25rem;
  border-bottom: 1px solid var(--border);
}
.bs-logo-mark {
  display: block;
  font-family: 'DM Serif Display', serif;
  font-size: 1.4rem;
  color: var(--amber);
  letter-spacing: -0.02em;
  line-height: 1;
}
.bs-logo-sub {
  font-size: 0.65rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-weight: 600;
}

/* ---- Nav ---- */
.bs-nav {
  flex: 1;
  padding: 0.75rem 0.6rem;
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
}
.bs-nav__item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius);
  color: var(--text2);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: background 0.12s, color 0.12s;
}
.bs-nav__item svg { width: 16px; height: 16px; flex-shrink: 0; stroke-width: 2; }
.bs-nav__item:hover { background: var(--surface2); color: var(--text); }
.bs-nav__item--active {
  background: var(--amber-dim);
  color: var(--amber);
}
.bs-nav__item--active svg { stroke: var(--amber); }

/* ---- Sidebar footer ---- */
.bs-sidebar__footer {
  padding: 1rem 0.75rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.bs-sidebar__env-pill {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.75rem;
  border-radius: 100px;
  background: var(--surface2);
  border: 1px solid var(--border);
  font-size: 0.72rem;
  color: var(--muted);
  text-decoration: none;
  transition: border-color 0.15s;
}
.bs-sidebar__env-pill:hover { border-color: var(--amber); }
.bs-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.bs-dot--green { background: var(--success); box-shadow: 0 0 5px var(--success); }
.bs-dot--red   { background: var(--danger);  box-shadow: 0 0 5px var(--danger); }

.bs-user-chip {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0.5rem;
  border-radius: var(--radius);
  background: var(--surface2);
}
.bs-user-chip__avatar {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--amber-dim);
  border: 1px solid var(--amber);
  color: var(--amber);
  font-size: 0.72rem;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.bs-user-chip__info { flex: 1; min-width: 0; }
.bs-user-chip__name {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.bs-user-chip__role { font-size: 0.68rem; color: var(--muted); }
.bs-user-chip__logout {
  color: var(--muted);
  display: flex;
  align-items: center;
  transition: color 0.15s;
  flex-shrink: 0;
}
.bs-user-chip__logout:hover { color: var(--danger); }
.bs-user-chip__logout svg { width: 15px; height: 15px; }

/* ---- Topbar (mobile) ---- */
.bs-topbar {
  display: none;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  position: sticky;
  top: 0;
  z-index: 100;
}
.bs-topbar__title { font-size: 0.95rem; font-weight: 600; }
.bs-hamburger {
  background: none; border: none; color: var(--text2); cursor: pointer; padding: 0.25rem;
  display: flex; align-items: center;
}
.bs-hamburger svg { width: 20px; height: 20px; }
.bs-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 190; }
.bs-overlay--show { display: block; }

/* ---- Page headers ---- */
.bs-page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2rem;
}
.bs-page-title {
  font-family: 'DM Serif Display', serif;
  font-size: 1.75rem;
  color: var(--text);
  margin: 0 0 0.2rem;
  line-height: 1.2;
}
.bs-page-subtitle { color: var(--muted); font-size: 0.875rem; margin: 0; }

/* ---- Stat cards ---- */
.bs-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}
.bs-stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  position: relative;
  overflow: hidden;
  transition: border-color 0.15s;
}
.bs-stat-card:hover { border-color: rgba(245,158,11,0.2); }
.bs-stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--amber), transparent);
  opacity: 0;
  transition: opacity 0.15s;
}
.bs-stat-card:hover::before { opacity: 1; }
.bs-stat-card__icon {
  width: 32px; height: 32px;
  background: var(--amber-dim);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--amber);
}
.bs-stat-card__icon svg { width: 16px; height: 16px; }
.bs-stat-card__label { font-size: 0.75rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.07em; font-weight: 600; }
.bs-stat-card__value { font-size: 1.6rem; font-weight: 700; color: var(--text); font-variant-numeric: tabular-nums; line-height: 1; }
.bs-stat-card__sub { font-size: 0.75rem; color: var(--muted); }

/* ---- Cards ---- */
.bs-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.bs-card__title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0 0 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ---- Tables ---- */
.bs-table-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 1.5rem;
}
.bs-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.bs-table thead th {
  background: var(--surface);
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.bs-table tbody tr {
  border-bottom: 1px solid var(--border2);
  transition: background 0.1s;
}
.bs-table tbody tr:last-child { border-bottom: none; }
.bs-table tbody tr:hover { background: var(--surface2); }
.bs-table td { padding: 0.75rem 1rem; color: var(--text); vertical-align: middle; }
.bs-table td.muted { color: var(--muted); font-size: 0.82rem; }

/* ---- Badges ---- */
.bs-badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.bs-badge--success { background: rgba(16,185,129,0.15); color: #6ee7b7; }
.bs-badge--warning { background: rgba(245,158,11,0.15); color: #fcd34d; }
.bs-badge--danger  { background: rgba(239,68,68,0.15);  color: #fca5a5; }
.bs-badge--info    { background: rgba(59,130,246,0.15); color: #93c5fd; }
.bs-badge--muted   { background: rgba(107,114,128,0.15);color: var(--muted); }

/* ---- Buttons ---- */
.bs-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.1rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: opacity 0.15s, transform 0.1s;
  text-decoration: none;
  white-space: nowrap;
  font-family: 'DM Sans', sans-serif;
}
.bs-btn:hover:not(:disabled) { opacity: 0.88; transform: translateY(-1px); }
.bs-btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }
.bs-btn svg { width: 14px; height: 14px; }
.bs-btn--primary { background: var(--amber);   color: #000; }
.bs-btn--success { background: var(--success); color: #fff; }
.bs-btn--danger  { background: var(--danger);  color: #fff; }
.bs-btn--ghost   { background: transparent; color: var(--text); border-color: var(--border); }
.bs-btn--sm      { padding: 0.35rem 0.75rem; font-size: 0.8rem; }

/* ---- Forms ---- */
.bs-form { display: flex; flex-direction: column; gap: 1.1rem; }
.bs-form-row { display: flex; flex-direction: column; gap: 0.35rem; }
.bs-form-row--half { flex-direction: row; gap: 0.75rem; }
.bs-form-row--half > * { flex: 1; display: flex; flex-direction: column; gap: 0.35rem; }
.bs-form label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.bs-form input,
.bs-form select,
.bs-form textarea {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 0.65rem 0.9rem;
  font-size: 0.9rem;
  font-family: 'DM Sans', sans-serif;
  width: 100%;
  transition: border-color 0.15s;
}
.bs-form input:focus,
.bs-form select:focus,
.bs-form textarea:focus { outline: none; border-color: var(--amber); }
.bs-form select { appearance: none; cursor: pointer; }
.bs-form textarea { resize: vertical; min-height: 90px; }
.bs-form-hint { font-size: 0.75rem; color: var(--muted); margin-top: 0.25rem; }

/* ---- Flash ---- */
.bs-flash {
  padding: 0.85rem 1.1rem;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid transparent;
}
.bs-flash--success { background: rgba(16,185,129,0.12); border-color: rgba(16,185,129,0.3); color: #6ee7b7; }
.bs-flash--error   { background: rgba(239,68,68,0.12);  border-color: rgba(239,68,68,0.3);  color: #fca5a5; }
.bs-flash--info    { background: rgba(59,130,246,0.1);  border-color: rgba(59,130,246,0.25);color: #93c5fd; }

/* ---- Modals ---- */
.bs-modal {
  position: fixed; inset: 0; z-index: 500;
  display: none;
  align-items: center; justify-content: center;
  padding: 1rem;
}
.bs-modal--open { display: flex; }
.bs-modal__overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(4px);
}
.bs-modal__box {
  position: relative; z-index: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 1.75rem;
}
.bs-modal__header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1.5rem;
}
.bs-modal__header h3 { margin: 0; font-size: 1.1rem; color: var(--text); font-family: 'DM Serif Display', serif; }
.bs-modal__close {
  background: none; border: none; color: var(--muted);
  font-size: 1.2rem; cursor: pointer; padding: 0.2rem;
  line-height: 1;
}
.bs-modal__footer {
  display: flex; justify-content: flex-end; gap: 0.75rem;
  margin-top: 1.5rem; padding-top: 1rem;
  border-top: 1px solid var(--border);
}

/* ---- Empty state ---- */
.bs-empty {
  padding: 3.5rem 2rem;
  text-align: center;
  color: var(--muted);
}
.bs-empty svg { opacity: 0.3; margin-bottom: 1rem; }
.bs-empty h3 { color: var(--text2); margin: 0 0 0.4rem; font-size: 1rem; }
.bs-empty p { font-size: 0.875rem; margin: 0; }

/* ---- Tabs ---- */
.bs-tabs {
  display: flex;
  gap: 0.2rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.5rem;
  overflow-x: auto;
}
.bs-tab {
  background: none; border: none;
  color: var(--muted); font-size: 0.875rem; font-weight: 500;
  padding: 0.65rem 1rem; cursor: pointer;
  position: relative; white-space: nowrap;
  transition: color 0.15s;
  font-family: 'DM Sans', sans-serif;
  display: flex; align-items: center; gap: 0.4rem;
}
.bs-tab:hover { color: var(--text); }
.bs-tab--active { color: var(--amber); }
.bs-tab--active::after {
  content: '';
  position: absolute;
  bottom: -1px; left: 0; right: 0;
  height: 2px;
  background: var(--amber);
  border-radius: 2px 2px 0 0;
}
.bs-tab-content { display: none; }
.bs-tab-content--active { display: block; }

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .bs-sidebar {
    transform: translateX(-100%);
  }
  .bs-sidebar--open {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(0,0,0,0.5);
  }
  .bs-main { margin-left: 0; }
  .bs-topbar { display: flex; }
  .bs-content { padding: 1.25rem; }
  .bs-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .bs-form-row--half { flex-direction: column; }
}
@media (max-width: 480px) {
  .bs-stats-grid { grid-template-columns: 1fr 1fr; }
}