/* ============================================================
   TechNexus Admin Portal — stylesheet
   Design: light, dense, data-forward "operations console" —
   deliberately distinct from the public site's dark theme so
   staff always know at a glance which surface they're in.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --surface-alt: #fafbfc;
  --border: #e3e6ea;
  --border-strong: #cfd4da;
  --text: #1b2129;
  --text-dim: #626c78;
  --text-faint: #939ba5;
  --primary: #1c6dd0;
  --primary-dark: #14549f;
  --primary-soft: #e8f0fd;
  --ok: #1a9a5c;
  --ok-soft: #e3f7ed;
  --warn: #b7791f;
  --warn-soft: #fdf3dd;
  --danger: #c53030;
  --danger-soft: #fbe6e6;
  --radius: 10px;
  --radius-lg: 14px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --sidebar-w: 236px;
  --topbar-h: 60px;
  --shadow: 0 1px 3px rgba(20, 24, 30, 0.08), 0 1px 2px rgba(20,24,30,0.04);
}

* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text); font-family: var(--font-body);
  -webkit-font-smoothing: antialiased; font-size: 14px;
}
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 600; margin: 0 0 0.4em; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
table { border-collapse: collapse; width: 100%; }
.mono { font-family: var(--font-mono); }

/* ---------- Login page ---------- */
.login-shell {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: radial-gradient(circle at 20% 15%, #eef4fc, var(--bg) 55%);
  padding: 24px;
}
.login-card { width: 100%; max-width: 380px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 36px 32px; }
.login-logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 1.2rem; margin-bottom: 4px; }
.login-logo .mark { color: var(--primary); font-size: 1.4rem; }
.login-sub { color: var(--text-faint); font-size: 0.8rem; margin-bottom: 26px; font-family: var(--font-mono); letter-spacing: 0.04em; }
.login-card h1 { display: none; }

/* ---------- Form basics (shared) ---------- */
.field { margin-bottom: 16px; }
.field label { display: block; font-size: 0.8rem; font-weight: 600; color: var(--text-dim); margin-bottom: 6px; }
.field .hint { font-size: 0.74rem; color: var(--text-faint); margin-top: 4px; }
.field input[type=text], .field input[type=password], .field input[type=number], .field input[type=email],
.field input[type=date], .field input[type=search], .field select, .field textarea {
  width: 100%; padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border-strong);
  background: var(--surface); color: var(--text); outline: none; transition: border-color .15s, box-shadow .15s;
}
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.field-row { display: flex; gap: 12px; }
.field-row .field { flex: 1; }
.checkbox-row { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--text-dim); margin-bottom: 16px; }
.checkbox-row input { accent-color: var(--primary); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 18px;
  border-radius: 8px; font-weight: 600; font-size: 0.85rem; border: 1px solid transparent; cursor: pointer;
  transition: background .15s, border-color .15s, color .15s, opacity .15s;
}
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--primary-dark); }
.btn-outline { background: var(--surface); border-color: var(--border-strong); color: var(--text); }
.btn-outline:hover:not(:disabled) { border-color: var(--primary); color: var(--primary); }
.btn-danger { background: var(--danger-soft); color: var(--danger); border-color: transparent; }
.btn-danger:hover:not(:disabled) { background: var(--danger); color: #fff; }
.btn-sm { padding: 6px 12px; font-size: 0.78rem; }
.btn-block { width: 100%; }

.alert { padding: 11px 14px; border-radius: 8px; font-size: 0.83rem; margin-bottom: 16px; display: none; }
.alert.show { display: block; }
.alert-error { background: var(--danger-soft); color: var(--danger); }
.alert-success { background: var(--ok-soft); color: var(--ok); }

/* ---------- App shell (everything after login) ---------- */
.app-shell { display: flex; min-height: 100vh; }
.sidebar {
  width: var(--sidebar-w); flex-shrink: 0; background: var(--surface); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; position: fixed; top: 0; bottom: 0; left: 0; z-index: 50;
  transition: transform .2s ease;
}
.sidebar-logo { display: flex; align-items: center; gap: 9px; padding: 18px 20px; font-family: var(--font-display); font-weight: 700; font-size: 1.02rem; border-bottom: 1px solid var(--border); }
.sidebar-logo .mark { color: var(--primary); font-size: 1.25rem; }
.sidebar-nav { flex: 1; padding: 14px 10px; overflow-y: auto; }
.sidebar-nav .nav-section { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.07em; color: var(--text-faint); padding: 14px 10px 6px; font-weight: 700; }
.sidebar-nav a {
  display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 8px; font-size: 0.86rem;
  color: var(--text-dim); font-weight: 500; margin-bottom: 2px;
}
.sidebar-nav a .ic { width: 18px; text-align: center; }
.sidebar-nav a:hover { background: var(--surface-alt); color: var(--text); }
.sidebar-nav a.active { background: var(--primary-soft); color: var(--primary-dark); font-weight: 600; }
.sidebar-footer { padding: 14px 16px; border-top: 1px solid var(--border); }
.sidebar-user { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.sidebar-user .avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--primary-soft); color: var(--primary-dark); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 0.85rem; flex-shrink: 0; }
.sidebar-user .who { min-width: 0; }
.sidebar-user .name { font-size: 0.83rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.sidebar-user .role { font-size: 0.72rem; color: var(--text-faint); text-transform: capitalize; }

.main-col { margin-left: var(--sidebar-w); flex: 1; min-width: 0; display: flex; flex-direction: column; }
.topbar {
  height: var(--topbar-h); display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 0 26px; background: var(--surface); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 40;
}
.topbar h1 { font-size: 1.08rem; margin: 0; }
.topbar-actions { display: flex; align-items: center; gap: 10px; }
.mobile-menu-btn { display: none; background: none; border: none; font-size: 1.3rem; color: var(--text); }
.view-site-link { font-size: 0.8rem; color: var(--text-dim); display: flex; align-items: center; gap: 5px; }
.view-site-link:hover { color: var(--primary); }

.page { padding: 26px; flex: 1; }
.page-head { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 20px; gap: 16px; flex-wrap: wrap; }
.page-head p { color: var(--text-dim); margin: 4px 0 0; font-size: 0.86rem; }

/* ---------- Stat cards ---------- */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 14px; margin-bottom: 24px; }
.stat-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 18px; }
.stat-card .label { font-size: 0.76rem; color: var(--text-faint); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 8px; }
.stat-card .value { font-family: var(--font-display); font-size: 1.7rem; font-weight: 700; }
.stat-card.warn .value { color: var(--warn); }
.stat-card.danger .value { color: var(--danger); }
.stat-card.ok .value { color: var(--ok); }

/* ---------- Cards / panels ---------- */
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 22px; }
.panel-head { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; border-bottom: 1px solid var(--border); gap: 12px; flex-wrap: wrap; }
.panel-head h3 { margin: 0; font-size: 0.95rem; }
.panel-body { padding: 20px; }
.panel-body.no-pad { padding: 0; }

/* ---------- Tables ---------- */
.table-wrap { overflow-x: auto; }
table.data-table { width: 100%; font-size: 0.85rem; }
table.data-table th {
  text-align: left; padding: 11px 16px; background: var(--surface-alt); color: var(--text-faint);
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.04em; font-weight: 700; border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
table.data-table td { padding: 12px 16px; border-bottom: 1px solid var(--border); vertical-align: middle; }
table.data-table tr:last-child td { border-bottom: none; }
table.data-table tr:hover td { background: var(--surface-alt); }
.cell-prod { display: flex; align-items: center; gap: 10px; }
.cell-prod .thumb { width: 38px; height: 38px; border-radius: 6px; background: var(--surface-alt); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; font-size: 1rem; overflow: hidden; flex-shrink: 0; }
.cell-prod .thumb img { width: 100%; height: 100%; object-fit: contain; }
.cell-prod .name { font-weight: 600; }
.cell-prod .sku { font-size: 0.74rem; color: var(--text-faint); font-family: var(--font-mono); }
.row-actions { display: flex; gap: 6px; }

.pill { display: inline-flex; align-items: center; gap: 5px; padding: 3px 10px; border-radius: 999px; font-size: 0.74rem; font-weight: 600; }
.pill-dot { width: 6px; height: 6px; border-radius: 50%; display: inline-block; }
.pill-ok { background: var(--ok-soft); color: var(--ok); } .pill-ok .pill-dot { background: var(--ok); }
.pill-warn { background: var(--warn-soft); color: var(--warn); } .pill-warn .pill-dot { background: var(--warn); }
.pill-danger { background: var(--danger-soft); color: var(--danger); } .pill-danger .pill-dot { background: var(--danger); }
.pill-neutral { background: var(--surface-alt); color: var(--text-faint); border: 1px solid var(--border); }
.pill-primary { background: var(--primary-soft); color: var(--primary-dark); }

.toolbar { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-bottom: 16px; }
.toolbar input[type=search], .toolbar select { padding: 9px 12px; border-radius: 8px; border: 1px solid var(--border-strong); background: var(--surface); font-size: 0.85rem; }
.toolbar .spacer { flex: 1; }

.empty-row td { text-align: center; color: var(--text-faint); padding: 40px 16px; }

/* ---------- Image upload ---------- */
.image-upload { display: flex; gap: 16px; align-items: center; }
.image-preview { width: 100px; height: 100px; border-radius: 10px; border: 1px dashed var(--border-strong); background: var(--surface-alt); display: flex; align-items: center; justify-content: center; overflow: hidden; flex-shrink: 0; font-size: 1.6rem; color: var(--text-faint); }
.image-preview img { width: 100%; height: 100%; object-fit: contain; }

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(20,24,30,0.45); display: none; align-items: center; justify-content: center;
  z-index: 200; padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal { background: var(--surface); border-radius: var(--radius-lg); max-width: 440px; width: 100%; padding: 26px; box-shadow: 0 20px 60px rgba(0,0,0,0.3); }
.modal h3 { margin-bottom: 8px; }
.modal p { color: var(--text-dim); font-size: 0.87rem; margin-bottom: 20px; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; }

.toast-wrap { position: fixed; top: 20px; right: 20px; z-index: 300; display: flex; flex-direction: column; gap: 8px; }
.toast { background: var(--text); color: #fff; padding: 12px 18px; border-radius: 8px; font-size: 0.85rem; box-shadow: var(--shadow); animation: toast-in .2s ease; }
.toast.error { background: var(--danger); }
.toast.success { background: var(--ok); }
@keyframes toast-in { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: translateY(0); } }

.badge-role { padding: 2px 8px; border-radius: 5px; font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.03em; }
.badge-role.admin { background: var(--primary-soft); color: var(--primary-dark); }
.badge-role.staff { background: var(--surface-alt); color: var(--text-dim); border: 1px solid var(--border); }

.help-block { background: var(--primary-soft); border: 1px solid #cfe0fb; color: var(--primary-dark); padding: 12px 16px; border-radius: 8px; font-size: 0.82rem; margin-bottom: 18px; }

@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); box-shadow: 0 0 30px rgba(0,0,0,0.2); }
  .main-col { margin-left: 0; }
  .mobile-menu-btn { display: block; }
  .field-row { flex-direction: column; gap: 0; }
}