/* ═══════════════════════════════════════════════════════════════════════════
   NEXUS ERP — Executive Precision Design System
   Slate + Indigo palette, Inter font
═══════════════════════════════════════════════════════════════════════════ */

:root {
  /* Brand colors */
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --primary-container: #e0e7ff;
  --on-primary-container: #312e81;

  /* Surface */
  --surface: #ffffff;
  --surface-container-lowest: #ffffff;
  --surface-container-low: #f7f8fa;
  --surface-container: #f1f2f5;
  --surface-container-high: #e6e8eb;
  --background: #f5f6f8;

  /* Text */
  --on-surface: #1c1e24;
  --on-surface-variant: #444753;
  --secondary: #6b7280;
  --outline: #9aa0ac;
  --outline-variant: #e3e5e9;

  /* Status */
  --success: #15803d;
  --success-container: #dcfce7;
  --warning: #b45309;
  --warning-container: #fef3c7;
  --error: #ba1a1a;
  --error-container: #fee2e2;
  --info: #1d4ed8;
  --info-container: #dbeafe;
  --tertiary: #7c3aed;
  --tertiary-fixed: #ede9fe;

  /* Company colors */
  --aes-color: #4f46e5;
  --gdi-color: #0891b2;
  --best-color: #ea580c;
  --hamat-color: #7c3aed;

  /* Shadows */
  --shadow-card: 0 1px 3px 0 rgba(0,0,0,0.06), 0 1px 2px -1px rgba(0,0,0,0.04);
  --shadow-drawer: -4px 0 24px rgba(0,0,0,0.08);

  /* Radii */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--background);
  color: var(--on-surface);
  font-size: 14px;
  line-height: 1.5;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.font-mono { font-family: 'JetBrains Mono', 'Courier New', monospace; }

/* ── Layout ──────────────────────────────────────────────────────────────── */
.app-shell { display: flex; min-height: 100vh; }

.sidebar {
  width: 260px; flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--outline-variant);
  display: flex; flex-direction: column;
  position: fixed; top: 0; left: 0; height: 100vh; overflow-y: auto;
  z-index: 40;
}

.main-content {
  flex: 1; margin-left: 260px;
  display: flex; flex-direction: column;
  min-height: 100vh;
}

.topbar {
  height: 64px;
  background: var(--surface);
  border-bottom: 1px solid var(--outline-variant);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px;
  position: sticky; top: 0; z-index: 30;
}

.page-content { padding: 24px; flex: 1; }

@media (max-width: 1024px) {
  .sidebar { transform: translateX(-100%); transition: transform 0.2s; }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
}

/* ── Sidebar ─────────────────────────────────────────────────────────────── */
.sidebar-header {
  padding: 20px; display: flex; align-items: center; gap: 10px;
  border-bottom: 1px solid var(--outline-variant);
}
.sidebar-logo {
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--primary); display: flex; align-items: center; justify-content: center;
  color: white; font-weight: 700; font-size: 16px;
}
.sidebar-title { font-weight: 700; font-size: 17px; color: var(--primary); }

.sidebar-nav { padding: 12px; flex: 1; }
.sidebar-section-label {
  font-size: 10px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--outline); padding: 16px 12px 6px;
}
.sidebar-link {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: var(--radius-sm);
  color: var(--on-surface-variant); font-size: 13.5px; font-weight: 500;
  transition: background 0.15s, color 0.15s; margin-bottom: 2px;
}
.sidebar-link:hover { background: var(--surface-container-low); text-decoration: none; color: var(--on-surface); }
.sidebar-link.active { background: var(--primary-container); color: var(--on-primary-container); font-weight: 600; }
.sidebar-link .icon { font-size: 18px; width: 20px; text-align: center; }

/* ── Topbar ──────────────────────────────────────────────────────────────── */
.company-switcher {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 12px; border-radius: var(--radius-sm);
  border: 1px solid var(--outline-variant); background: var(--surface-container-low);
  cursor: pointer; font-size: 13px; font-weight: 600;
}

.topbar-actions { display: flex; align-items: center; gap: 8px; }

.avatar {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--primary-container); color: var(--on-primary-container);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 13px;
}

/* ── Cards ───────────────────────────────────────────────────────────────── */
.nexus-card {
  background: var(--surface);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}
.nexus-card-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--outline-variant);
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--outline-variant);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex; align-items: center; gap: 12px;
  box-shadow: var(--shadow-card);
}
.stat-card-value { font-size: 22px; font-weight: 700; line-height: 1.2; }
.stat-card-label { font-size: 12px; color: var(--secondary); margin-top: 2px; }

/* ── Page headers ────────────────────────────────────────────────────────── */
.page-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 20px; flex-wrap: wrap; gap: 12px; }
.page-title { font-size: 22px; font-weight: 700; margin: 0; }
.page-subtitle { font-size: 13px; color: var(--secondary); margin: 4px 0 0; }

/* ── Grid ────────────────────────────────────────────────────────────────── */
.grid { display: grid; gap: 16px; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1024px) {
  .grid-cols-3, .grid-cols-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-cols-2, .grid-cols-3, .grid-cols-4 { grid-template-columns: 1fr; }
}

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 16px; border-radius: var(--radius-sm);
  font-size: 13px; font-weight: 600; cursor: pointer;
  border: 1px solid transparent; transition: all 0.15s;
  font-family: inherit;
}
.btn-sm { padding: 6px 12px; font-size: 12.5px; }
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: var(--surface); border-color: var(--outline-variant); color: var(--on-surface); }
.btn-secondary:hover { background: var(--surface-container-low); }
.btn-danger { background: var(--error-container); color: var(--error); }
.btn-danger:hover { background: #fdd; }
.btn-ghost { background: transparent; color: var(--on-surface-variant); }
.btn-ghost:hover { background: var(--surface-container-low); }
.btn-icon { padding: 6px; width: 32px; height: 32px; justify-content: center; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── Forms ───────────────────────────────────────────────────────────────── */
.nexus-label { display: block; font-size: 12.5px; font-weight: 600; color: var(--on-surface-variant); margin-bottom: 5px; }
.nexus-input, select.nexus-input, textarea.nexus-input {
  width: 100%; padding: 9px 12px;
  border: 1px solid var(--outline-variant); border-radius: var(--radius-sm);
  font-size: 13.5px; font-family: inherit; background: var(--surface); color: var(--on-surface);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.nexus-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,70,229,0.12); }
.nexus-input-icon-left { padding-left: 36px; }
.input-group { position: relative; }
.input-group .icon-left {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  color: var(--outline); font-size: 18px;
}

/* ── Tables ──────────────────────────────────────────────────────────────── */
.nexus-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.nexus-table th {
  text-align: left; padding: 10px 14px; font-size: 11px; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.04em; color: var(--secondary);
  background: var(--surface-container-low); border-bottom: 1px solid var(--outline-variant);
  white-space: nowrap;
}
.nexus-table td { padding: 12px 14px; border-bottom: 1px solid var(--outline-variant); vertical-align: middle; }
.nexus-table tbody tr:hover { background: var(--surface-container-low); cursor: pointer; }
.nexus-table tfoot td { font-weight: 700; border-top: 2px solid var(--outline-variant); }
.text-right { text-align: right; }

/* ── Badges ──────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 2px 8px; border-radius: 999px;
  font-size: 11px; font-weight: 700;
}
.badge-success { background: var(--success-container); color: var(--success); }
.badge-warning { background: var(--warning-container); color: var(--warning); }
.badge-error   { background: var(--error-container); color: var(--error); }
.badge-info    { background: var(--info-container); color: var(--info); }
.badge-neutral { background: var(--surface-container-high); color: var(--secondary); }
.badge-primary { background: var(--primary-container); color: var(--on-primary-container); }

.badge-aes   { background: #e0e7ff; color: #4338ca; }
.badge-gdi   { background: #cffafe; color: #0e7490; }
.badge-best  { background: #ffedd5; color: #c2410c; }
.badge-hamat { background: #ede9fe; color: #6d28d9; }

/* ── Drawer ──────────────────────────────────────────────────────────────── */
.right-drawer {
  position: fixed; top: 0; right: 0; height: 100vh; width: 420px;
  background: var(--surface); box-shadow: var(--shadow-drawer);
  z-index: 50; overflow-y: auto; animation: slideIn 0.2s ease-out;
}
@keyframes slideIn { from { transform: translateX(100%); } to { transform: translateX(0); } }
.drawer-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.2); z-index: 45; }
.right-drawer-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 20px; border-bottom: 1px solid var(--outline-variant);
  position: sticky; top: 0; background: var(--surface); z-index: 1;
}
@media (max-width: 480px) { .right-drawer { width: 100%; } }

/* ── Alerts ──────────────────────────────────────────────────────────────── */
.alert {
  padding: 12px 16px; border-radius: var(--radius-sm); font-size: 13px;
  display: flex; align-items: flex-start; gap: 8px; margin-bottom: 16px;
}
.alert-success { background: var(--success-container); color: var(--success); }
.alert-error   { background: var(--error-container); color: var(--error); }
.alert-warning { background: var(--warning-container); color: var(--warning); }
.alert-info    { background: var(--info-container); color: var(--info); }

/* ── Utility ─────────────────────────────────────────────────────────────── */
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 4px; } .gap-2 { gap: 8px; } .gap-3 { gap: 12px; } .gap-4 { gap: 16px; }
.mb-1 { margin-bottom: 4px; } .mb-2 { margin-bottom: 8px; } .mb-3 { margin-bottom: 12px; } .mb-4 { margin-bottom: 16px; }
.mt-1 { margin-top: 4px; } .mt-2 { margin-top: 8px; } .mt-3 { margin-top: 12px; } .mt-4 { margin-top: 16px; }
.text-secondary { color: var(--secondary); }
.text-error { color: var(--error); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-primary { color: var(--primary); }
.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.text-sm { font-size: 12px; }
.text-xs { font-size: 11px; }
.w-full { width: 100%; }
.cursor-pointer { cursor: pointer; }
.hidden { display: none; }
.rounded-full { border-radius: 999px; }
.overflow-x-auto { overflow-x: auto; }
.relative { position: relative; }
.capitalize { text-transform: capitalize; }
.uppercase { text-transform: uppercase; }
.section-gap { margin-bottom: 24px; }

/* ── Material Symbols sizing ─────────────────────────────────────────────── */
.material-symbols-outlined {
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
  vertical-align: middle; line-height: 1;
}
.icon-sm { font-size: 16px !important; }
.icon-filled { font-variation-settings: 'FILL' 1; }

/* ── Auth pages ──────────────────────────────────────────────────────────── */
.auth-container {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: var(--background); padding: 24px;
}
.auth-box { width: 100%; max-width: 420px; }
.auth-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 32px; }

/* ── Login table row hover override for clickable rows ────────────────────── */
.nexus-table tbody tr.no-hover:hover { background: transparent; cursor: default; }