/* ============================================================
   ATLAS MRP — Stylesheet
   Industrial-minimal aesthetic. IBM Plex Sans + Mono.
   ============================================================ */

:root {
  --bg:          #0f1117;
  --bg-panel:    #161b27;
  --bg-card:     #1c2333;
  --border:      #2a3245;
  --border-light:#344060;
  --text:        #e2e8f0;
  --text-muted:  #7a8aaa;
  --text-dim:    #4a5568;
  --accent:      #e8b84b;
  --accent-dim:  #b8922e;
  --green:       #4ade80;
  --red:         #f87171;
  --blue:        #60a5fa;
  --sidebar-w:   220px;
  --radius:      4px;
  --font:        'IBM Plex Sans', sans-serif;
  --mono:        'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html {
  overflow-x: hidden;
}

body {
  font-family: var(--font);
  font-size: 14px;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  max-width: 100vw;
}

/* ---- Layout ---- */
.app-wrapper {
  display: flex;
  min-height: 100vh;
  max-width: 100vw;
  overflow-x: hidden;
}

/* ---- Sidebar ---- */
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  z-index: 100;
  overflow-y: auto;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 22px 20px 18px;
  border-bottom: 1px solid var(--border);
}

.logo-mark {
  color: var(--accent);
  font-size: 18px;
  line-height: 1;
}

.logo-text {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--text);
}

.sidebar-nav {
  flex: 1;
  padding: 16px 0;
}

.nav-section {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 16px 20px 6px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 13.5px;
  transition: color 0.15s, background 0.15s;
  border-left: 2px solid transparent;
}

.nav-item:hover {
  color: var(--text);
  background: rgba(255,255,255,0.03);
}

.nav-item.active {
  color: var(--accent);
  border-left-color: var(--accent);
  background: rgba(232,184,75,0.06);
}

.nav-icon {
  font-size: 13px;
  width: 16px;
  text-align: center;
  opacity: 0.7;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-user {
  font-size: 12px;
  color: var(--text-muted);
  font-family: var(--mono);
}

.logout-link {
  font-size: 12px;
  color: var(--text-dim);
  text-decoration: none;
  transition: color 0.15s;
}

.logout-link:hover { color: var(--red); }

/* ---- Main Content ---- */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-height: 100vh;
}

.content-inner {
  padding: 32px 36px;
  max-width: 1400px;
}

/* ---- Page Header ---- */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.page-title {
  font-size: 22px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}

.page-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ---- Cards ---- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}

.card-title {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

/* ---- Stat Cards ---- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
}

.stat-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.stat-value {
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 500;
  color: var(--text);
}

.stat-value.accent { color: var(--accent); }
.stat-value.green  { color: var(--green);  }
.stat-value.red    { color: var(--red);    }

/* ---- Tables ---- */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

thead th {
  background: var(--bg-panel);
  padding: 10px 14px;
  text-align: left;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background 0.1s;
}

tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: rgba(255,255,255,0.02); }

tbody td {
  padding: 10px 14px;
  color: var(--text);
  vertical-align: middle;
}

.td-mono {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--accent);
}

.td-muted { color: var(--text-muted); }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  border: 1px solid transparent;
  transition: all 0.15s;
  line-height: 1;
}

.btn-primary {
  background: var(--accent);
  color: #0f1117;
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-dim);
  border-color: var(--accent-dim);
}

.btn-secondary {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--border-light);
}
.btn-secondary:hover {
  color: var(--text);
  border-color: var(--text-muted);
}

.btn-danger {
  background: transparent;
  color: var(--red);
  border-color: var(--red);
}
.btn-danger:hover {
  background: var(--red);
  color: #fff;
}

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

/* ---- Forms ---- */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
.form-grid.cols-1 { grid-template-columns: 1fr; }

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group.full { grid-column: 1 / -1; }

label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
select,
textarea {
  background: var(--bg);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 9px 12px;
  color: var(--text);
  font-family: var(--font);
  font-size: 13.5px;
  width: 100%;
  transition: border-color 0.15s;
  outline: none;
  -webkit-appearance: none;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
}

select option {
  background: var(--bg-panel);
}

textarea { resize: vertical; min-height: 80px; }

.form-actions {
  display: flex;
  gap: 10px;
  margin-top: 8px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

/* ---- Badges ---- */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 2px;
  font-size: 11px;
  font-weight: 600;
  font-family: var(--mono);
  letter-spacing: 0.04em;
}

.badge-green  { background: rgba(74,222,128,0.12); color: var(--green); }
.badge-red    { background: rgba(248,113,113,0.12); color: var(--red); }
.badge-yellow { background: rgba(232,184,75,0.12);  color: var(--accent); }
.badge-blue   { background: rgba(96,165,250,0.12);  color: var(--blue); }
.badge-muted  { background: rgba(122,138,170,0.12); color: var(--text-muted); }
.badge-yellow { background: rgba(251,191,36,0.12);  color: #f59e0b; }

/* ---- Flash messages ---- */
.flash {
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  font-size: 13.5px;
  border-left: 3px solid;
}
.flash-success { background: rgba(74,222,128,0.08);  border-color: var(--green); color: var(--green); }
.flash-error   { background: rgba(248,113,113,0.08); border-color: var(--red);   color: var(--red);   }
.flash-info    { background: rgba(96,165,250,0.08);  border-color: var(--blue);  color: var(--blue);  }

/* ---- Search / Filter bar ---- */
.filter-bar {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
  align-items: center;
  flex-wrap: wrap;
}

.filter-bar input,
.filter-bar select {
  width: auto;
  min-width: 180px;
}

/* ---- BOM Tree ---- */
.bom-tree { font-size: 13.5px; }

.bom-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 12px;
  border-bottom: 1px solid var(--border);
  cursor: default;
}

.bom-row:hover { background: rgba(255,255,255,0.02); }

.bom-indent { display: inline-block; }

.bom-toggle {
  cursor: pointer;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 11px;
  width: 16px;
  text-align: center;
  user-select: none;
}

.bom-part-no {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--accent);
  min-width: 120px;
}

.bom-desc {
  flex: 1;
  color: var(--text-muted);
}

.bom-qty {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--text);
  min-width: 60px;
  text-align: right;
}

.bom-uom {
  font-size: 11px;
  color: var(--text-dim);
  min-width: 40px;
}

/* ---- Login page ---- */
.login-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--bg);
}

.login-box {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  width: 100%;
  max-width: 380px;
}

.login-logo {
  text-align: center;
  margin-bottom: 32px;
}

.login-logo .logo-mark {
  font-size: 32px;
  display: block;
  margin-bottom: 8px;
}

.login-logo .logo-text {
  font-family: var(--mono);
  font-size: 24px;
  font-weight: 500;
  letter-spacing: 0.12em;
}

/* ---- Pagination ---- */
.pagination {
  display: flex;
  gap: 4px;
  align-items: center;
  margin-top: 16px;
  font-size: 13px;
}

.page-link {
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  text-decoration: none;
  font-family: var(--mono);
  font-size: 12px;
  transition: all 0.15s;
}

.page-link:hover     { border-color: var(--accent); color: var(--accent); }
.page-link.active    { background: var(--accent); color: #0f1117; border-color: var(--accent); }
.page-link.disabled  { opacity: 0.3; pointer-events: none; }

/* ============================================================
   RESPONSIVE — Mobile top bar + dropdown nav
   ============================================================ */

/* Hidden on desktop by default */
.mobile-topbar      { display: none; }
.mobile-menu-btn    { display: none; }
.mobile-nav-backdrop { display: none; }

/* Top bar */
.mobile-topbar {
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  height: 50px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
}
.mobile-topbar .logo-mark { color: var(--accent); font-size: 15px; flex-shrink: 0; }
.mobile-topbar .logo-text {
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.08em;
  flex-shrink: 0;
}

/* Hamburger button */
.mobile-menu-btn {
  background: none;
  border: none;
  color: var(--text);
  font-size: 22px;
  cursor: pointer;
  padding: 4px 6px;
  line-height: 1;
  flex-shrink: 0;
}

/* Dropdown nav — hidden above screen until .open */
.mobile-nav {
  position: fixed;
  top: 50px; left: 0; right: 0;
  background: var(--bg-panel);
  border-bottom: 2px solid var(--accent);
  z-index: 199;
  max-height: calc(100vh - 50px);
  overflow-y: auto;
  transform: translateY(-110%);
  transition: transform 0.22s ease;
  /* always in DOM, hidden off-screen */
  display: block;
  visibility: hidden;
}
.mobile-nav.open {
  transform: translateY(0);
  visibility: visible;
}

/* Tap-outside backdrop */
.mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 198;
  display: none;
}
.mobile-nav-backdrop.active { display: block; }

/* 3-column icon grid */
.mobile-nav-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border-bottom: 1px solid var(--border);
}
.mnav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 14px 8px;
  background: var(--bg-panel);
  color: var(--text-muted);
  text-decoration: none;
  font-size: 11px;
  font-weight: 500;
  text-align: center;
  transition: background 0.12s, color 0.12s;
  white-space: nowrap;
}
.mnav-item span { font-size: 20px; line-height: 1; opacity: 0.8; display: block; }
.mnav-item:hover  { background: var(--bg); color: var(--text); }
.mnav-item.active { background: rgba(232,184,75,0.08); color: var(--accent); }
.mnav-item.active span { opacity: 1; }

@media (max-width: 768px) {

  /* Show mobile topbar, hide desktop sidebar */
  .mobile-topbar   { display: flex; }
  .mobile-menu-btn { display: block; }
  .sidebar         { display: none; }

  /* Main content: no left margin, push down below fixed top bar */
  .main-content { margin-left: 0; padding-top: 50px; width: 100%; max-width: 100vw; }
  .content-inner { padding: 16px 14px; width: 100%; max-width: 100%; overflow-x: hidden; }

  /* Page header stacks */
  .page-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 20px;
    padding-bottom: 16px;
  }
  .page-header > div:last-child,
  .page-header > a:last-child {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }
  .page-title { font-size: 18px; }

  /* Forms: single column */
  .form-grid,
  .form-grid.cols-3 { grid-template-columns: 1fr; }

  /* Form actions: stack buttons */
  .form-actions { flex-direction: column; }
  .form-actions .btn { width: 100%; justify-content: center; }

  /* Stats: 2-up */
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 10px; }

  /* Cards: tighter padding */
  .card { padding: 14px; }

  /* Tables: scroll horizontally */
  .table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  /* Filter bar */
  .filter-bar { flex-wrap: wrap; gap: 8px; }
  .filter-bar input,
  .filter-bar select { min-width: 0; flex: 1 1 140px; }

  /* Collapse inline two-column grids */
  [style*="grid-template-columns:1fr 1fr"],
  [style*="grid-template-columns: 1fr 1fr"],
  [style*="grid-template-columns:2fr 1fr"],
  [style*="grid-template-columns: 2fr 1fr"],
  [style*="grid-template-columns:1fr 320px"],
  [style*="grid-template-columns: 1fr 320px"] {
    grid-template-columns: 1fr !important;
  }

  /* Kanban: horizontal scroll */
  .kanban-board {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 12px;
  }
  .kanban-col { flex: 0 0 280px; max-height: none; }

  /* Login */
  .login-box { margin: 16px; padding: 28px 20px; }

  .stat-value { font-size: 22px; }
  .hide-mobile { display: none !important; }

  /* Contain ALL cards and wrappers so wide tables don't blow out the page */
  .card, .table-wrap, .filter-bar, .page-header, .form-grid {
    max-width: 100%;
    min-width: 0;
  }

  /* Tables inside table-wrap scroll, not expand the page */
  .table-wrap {
    display: block;
    width: 100%;
  }

  /* Inputs don't force wide layout */
  input[type="text"], input[type="email"], input[type="number"],
  input[type="date"], input[type="password"], select, textarea {
    min-width: 0 !important;
    max-width: 100%;
    width: 100%;
  }
}

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: 1fr; }
  .content-inner { padding: 12px 10px; }
}