/* ============================================================
   DIJAGONALA — Premium Design System  v2
   Minimalistic · Airy · Professional
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* ── Design Tokens — Light ──────────────────────────────── */
:root {
  --font: 'Inter', system-ui, -apple-system, sans-serif;

  /* Brand */
  --c-brand:        #2563EB;
  --c-brand-light:  #EFF6FF;
  --c-brand-border: #BFDBFE;
  --c-brand-hover:  #1D4ED8;
  --c-brand-muted:  #93C5FD;

  /* Backgrounds */
  --c-bg:           #F7F8FC;
  --c-bg-card:      #FFFFFF;
  --c-bg-sidebar:   #FFFFFF;
  --c-bg-topbar:    #1E293B;
  --c-bg-input:     #FFFFFF;
  --c-bg-hover:     #F1F5F9;
  --c-bg-active:    #EFF6FF;

  /* Text */
  --c-text-primary:   #0F172A;
  --c-text-secondary: #475569;
  --c-text-muted:     #94A3B8;
  --c-text-topbar:    #F1F5F9;

  /* Borders */
  --c-border:       #E2E8F0;
  --c-border-light: #F1F5F9;

  /* Status — Green */
  --c-green-bg:     #F0FDF4;
  --c-green-border: #BBF7D0;
  --c-green-text:   #166534;
  --c-green-dark:   #059669;

  /* Status — Amber */
  --c-amber-bg:     #FFFBEB;
  --c-amber-border: #FDE68A;
  --c-amber-text:   #78350F;
  --c-amber-dark:   #D97706;
  --c-amber-border2:#F59E0B;

  /* Status — Red */
  --c-red-bg:       #FFF1F2;
  --c-red-border:   #FECDD3;
  --c-red-text:     #9F1239;
  --c-red-dark:     #DC2626;

  /* Gray */
  --c-gray-bg:      #F8FAFC;
  --c-gray-border:  #E2E8F0;
  --c-gray-text:    #64748B;

  /* Blue zone (map) */
  --c-blue-zone:    #DBEAFE;
  --c-blue-zone-b:  #BFDBFE;

  /* Shadows — layered, natural */
  --shadow-xs:   0 1px 2px rgba(15,23,42,.04);
  --shadow-sm:   0 1px 3px rgba(15,23,42,.06), 0 1px 2px rgba(15,23,42,.04);
  --shadow-card: 0 1px 3px rgba(15,23,42,.05), 0 4px 12px rgba(15,23,42,.04);
  --shadow-md:   0 4px 6px rgba(15,23,42,.04), 0 10px 24px rgba(15,23,42,.06);
  --shadow-modal:0 20px 60px rgba(15,23,42,.14), 0 4px 16px rgba(15,23,42,.06);

  /* Radii */
  --radius-sm:   6px;
  --radius-card: 14px;
  --radius-lg:   18px;
  --radius-xl:   24px;

  /* Layout */
  --sidebar-w:  220px;
  --topbar-h:   60px;

  /* Transitions */
  --t-fast: .12s ease;
  --t-base: .2s ease;
}

/* ── Design Tokens — Dark ───────────────────────────────── */
[data-theme="dark"] {
  --c-bg:           #0C0F1A;
  --c-bg-card:      #141827;
  --c-bg-sidebar:   #101422;
  --c-bg-topbar:    #0C0F1A;
  --c-bg-input:     #1A1F35;
  --c-bg-hover:     #1E2438;
  --c-bg-active:    #1A2445;

  --c-text-primary:   #F1F5F9;
  --c-text-secondary: #94A3B8;
  --c-text-muted:     #475569;
  --c-text-topbar:    #F1F5F9;

  --c-border:       #1E2D45;
  --c-border-light: #151E30;

  --c-brand:        #60A5FA;
  --c-brand-light:  #172039;
  --c-brand-border: #1E3A68;
  --c-brand-hover:  #3B82F6;
  --c-brand-muted:  #1E40AF;

  --c-green-bg:     #052E16;
  --c-green-border: #14532D;
  --c-green-text:   #86EFAC;
  --c-green-dark:   #34D399;

  --c-amber-bg:     #1C1200;
  --c-amber-border: #451A03;
  --c-amber-text:   #FCD34D;
  --c-amber-dark:   #F59E0B;
  --c-amber-border2:#78350F;

  --c-red-bg:       #1A0010;
  --c-red-border:   #4C0519;
  --c-red-text:     #FDA4AF;
  --c-red-dark:     #F87171;

  --c-gray-bg:      #141827;
  --c-gray-border:  #1E2D3D;
  --c-gray-text:    #64748B;

  --c-blue-zone:    #0F1E38;
  --c-blue-zone-b:  #1E3A68;

  --shadow-card: 0 1px 4px rgba(0,0,0,.4);
  --shadow-modal:0 24px 64px rgba(0,0,0,.6), 0 4px 16px rgba(0,0,0,.3);
}

/* ── Reset ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { height: 100%; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font);
  background: var(--c-bg);
  color: var(--c-text-primary);
  min-height: 100vh;
  font-size: 14px;
  line-height: 1.6;
  transition: background .3s, color .3s;
}
a { color: var(--c-brand); text-decoration: none; }
button { font-family: var(--font); cursor: pointer; }
input, textarea, select { font-family: var(--font); }

/* ── App Shell ──────────────────────────────────────────── */
.app-shell { display: flex; flex-direction: column; min-height: 100vh; }

/* ── Topbar ─────────────────────────────────────────────── */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--topbar-h);
  background: var(--c-bg-topbar);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 100;
  box-shadow: 0 1px 0 rgba(255,255,255,.04), 0 2px 8px rgba(0,0,0,.18);
}
.topbar-left  { display: flex; align-items: center; gap: 16px; }
.topbar-right { display: flex; align-items: center; gap: 8px; }

.topbar .logo {
  color: #F8FAFC;
  font-size: 15px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
  letter-spacing: -.01em;
}
.topbar .logo i { opacity: .9; }

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: rgba(255,255,255,.45);
  margin-left: 4px;
  padding-left: 16px;
  border-left: 1px solid rgba(255,255,255,.12);
}
.breadcrumb a { color: rgba(255,255,255,.65); transition: color var(--t-fast); }
.breadcrumb a:hover { color: #fff; }
.crumb-active { color: rgba(255,255,255,.85); font-weight: 500; }

/* Dark mode pill toggle */
.theme-toggle {
  width: 42px; height: 24px;
  border-radius: 12px;
  background: rgba(255,255,255,.14);
  border: none;
  position: relative;
  cursor: pointer;
  transition: background var(--t-base);
  flex-shrink: 0;
}
.theme-toggle::before {
  content: '☀';
  position: absolute;
  left: 5px; top: 50%;
  transform: translateY(-50%);
  font-size: 11px;
  line-height: 1;
  opacity: .7;
}
.theme-toggle::after {
  content: '';
  position: absolute;
  top: 3px; left: 3px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: #fff;
  transition: transform .22s cubic-bezier(.34,1.56,.64,1);
  box-shadow: 0 1px 3px rgba(0,0,0,.2);
}
[data-theme="dark"] .theme-toggle { background: var(--c-brand); }
[data-theme="dark"] .theme-toggle::before { content: '🌙'; }
[data-theme="dark"] .theme-toggle::after  { transform: translateX(18px); }

.lang-btn {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.15);
  color: rgba(255,255,255,.85);
  padding: 5px 11px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  letter-spacing: .5px;
  transition: background var(--t-fast), color var(--t-fast);
}
.lang-btn:hover { background: rgba(255,255,255,.2); color: #fff; }

.avatar {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--c-brand);
  border: 2px solid rgba(255,255,255,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: #fff;
  cursor: pointer;
  flex-shrink: 0;
  transition: transform var(--t-fast);
}
.avatar:hover { transform: scale(1.06); }

/* ── Sidebar ─────────────────────────────────────────────── */
.sidebar {
  position: fixed;
  top: var(--topbar-h);
  left: 0; bottom: 0;
  width: var(--sidebar-w);
  background: var(--c-bg-sidebar);
  padding: 20px 0 16px;
  overflow-y: auto;
  z-index: 90;
  border-right: 1px solid var(--c-border);
  transition: background .3s;
}
/* Subtle top gradient separator */
.sidebar::before {
  content: '';
  display: block;
  height: 1px;
  background: var(--c-border);
  margin-bottom: 12px;
}

.nav-section-label {
  font-size: 10px;
  font-weight: 600;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 12px 20px 6px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 10px 20px;
  font-size: 13.5px;
  font-weight: 450;
  color: var(--c-text-secondary);
  cursor: pointer;
  transition: background var(--t-fast), color var(--t-fast);
  text-decoration: none;
  border-radius: 0;
  margin: 1px 8px;
  border-radius: 8px;
}
.nav-item i { font-size: 18px; flex-shrink: 0; opacity: .8; }
.nav-item:hover {
  background: var(--c-bg-hover);
  color: var(--c-text-primary);
}
.nav-item:hover i { opacity: 1; }
.nav-item.active {
  color: var(--c-brand);
  background: var(--c-brand-light);
  font-weight: 600;
}
.nav-item.active i { opacity: 1; }

/* ── Main Content ────────────────────────────────────────── */
.main-content {
  margin-left: var(--sidebar-w);
  margin-top: var(--topbar-h);
  padding: 32px 28px;
  min-height: calc(100vh - var(--topbar-h));
  max-width: 1400px;
}

.page-header { margin-bottom: 24px; }
.page-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--c-text-primary);
  letter-spacing: -.02em;
  line-height: 1.2;
}
.page-sub { font-size: 13px; color: var(--c-text-muted); margin-top: 4px; }

/* ── Cards ───────────────────────────────────────────────── */
.card {
  background: var(--c-bg-card);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--c-border);
}
.card-pad { padding: 22px 24px; }
.card-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-text-primary);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: -.01em;
}
.card-title i { opacity: .8; }

/* ── Stats Row ───────────────────────────────────────────── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: 18px 20px;
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--t-base), transform var(--t-base);
}
.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.stat-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: .6px;
  margin-bottom: 8px;
}
.stat-val {
  font-size: 32px;
  font-weight: 700;
  color: var(--c-text-primary);
  line-height: 1;
  letter-spacing: -.03em;
}
.stat-val.green { color: var(--c-green-dark); }
.stat-val.amber { color: var(--c-amber-dark); }
.stat-val.red   { color: var(--c-red-dark); }
.stat-sub { font-size: 11px; color: var(--c-text-muted); margin-top: 6px; }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--c-border);
  background: var(--c-bg-card);
  color: var(--c-text-primary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--t-fast), border-color var(--t-fast), box-shadow var(--t-fast);
  white-space: nowrap;
  letter-spacing: -.01em;
}
.btn:hover {
  background: var(--c-bg-hover);
  border-color: var(--c-border);
  box-shadow: var(--shadow-xs);
}
.btn-primary {
  background: var(--c-brand);
  color: #fff;
  border-color: var(--c-brand);
  box-shadow: 0 1px 2px rgba(37,99,235,.2), 0 2px 8px rgba(37,99,235,.12);
}
.btn-primary:hover {
  background: var(--c-brand-hover);
  border-color: var(--c-brand-hover);
  box-shadow: 0 2px 4px rgba(37,99,235,.25), 0 4px 14px rgba(37,99,235,.18);
}
.btn-danger {
  color: var(--c-red-dark);
  border-color: var(--c-red-border);
  background: var(--c-red-bg);
}
.btn-danger:hover { background: var(--c-red-border); }
.btn-sm { padding: 5px 11px; font-size: 12px; gap: 5px; }

/* ── Icon Buttons ────────────────────────────────────────── */
.icon-btn {
  width: 30px; height: 30px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--c-border);
  background: transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--c-text-muted);
  font-size: 14px;
  transition: all var(--t-fast);
  flex-shrink: 0;
}
.icon-btn:hover {
  background: var(--c-bg-hover);
  color: var(--c-text-primary);
  border-color: var(--c-border);
}
.icon-btn.blue:hover {
  background: var(--c-brand-light);
  color: var(--c-brand);
  border-color: var(--c-brand-border);
}
.icon-btn.red:hover {
  background: var(--c-red-bg);
  color: var(--c-red-dark);
  border-color: var(--c-red-border);
}
.icon-btn.gold { color: var(--c-amber-dark); }
.icon-btn.gold.filled { color: #F59E0B; }

/* ── Inputs ──────────────────────────────────────────────── */
.input {
  background: var(--c-bg-input);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 13px;
  color: var(--c-text-primary);
  outline: none;
  width: 100%;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.input:focus {
  border-color: var(--c-brand);
  box-shadow: 0 0 0 3px rgba(37,99,235,.08);
}
.input::placeholder { color: var(--c-text-muted); }

.select {
  background: var(--c-bg-input);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 13px;
  color: var(--c-text-primary);
  outline: none;
  width: 100%;
  cursor: pointer;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2.5'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 30px;
}
.select:focus {
  border-color: var(--c-brand);
  box-shadow: 0 0 0 3px rgba(37,99,235,.08);
}

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

.form-group { margin-bottom: 16px; }
.form-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--c-text-secondary);
  margin-bottom: 6px;
  display: block;
  letter-spacing: .01em;
}

/* ── Filter Chips ────────────────────────────────────────── */
.filter-row { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.filter-chip {
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid var(--c-border);
  background: var(--c-bg-card);
  color: var(--c-text-secondary);
  transition: all var(--t-fast);
  white-space: nowrap;
  letter-spacing: -.01em;
}
.filter-chip:hover {
  background: var(--c-bg-hover);
  color: var(--c-text-primary);
  border-color: var(--c-border);
}
.filter-chip.active {
  background: var(--c-brand);
  color: #fff;
  border-color: var(--c-brand);
  box-shadow: 0 1px 4px rgba(37,99,235,.2);
}

/* ── Badges ──────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 9px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
  letter-spacing: .01em;
}
.badge-green  { background: var(--c-green-bg); color: var(--c-green-text); border: 1px solid var(--c-green-border); }
.badge-amber  { background: var(--c-amber-bg); color: var(--c-amber-text); border: 1px solid var(--c-amber-border); }
.badge-red    { background: var(--c-red-bg);   color: var(--c-red-text);   border: 1px solid var(--c-red-border); }
.badge-gray   { background: var(--c-gray-bg);  color: var(--c-gray-text);  border: 1px solid var(--c-gray-border); }
.badge-brand  { background: var(--c-brand-light); color: var(--c-brand);   border: 1px solid var(--c-brand-border); }
.badge-stale  { background: var(--c-amber-bg); color: var(--c-amber-text); border: 1px dashed var(--c-amber-border2); }
.badge-aging  { background: #FFF7ED; color: #9A3412; border: 1px solid #FDBA74; }

/* ── Toolbar ─────────────────────────────────────────────── */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  gap: 10px;
  flex-wrap: wrap;
}
.toolbar-left  { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.toolbar-right { display: flex; align-items: center; gap: 8px;  flex-wrap: wrap; }

/* ── Tower Grid ──────────────────────────────────────────── */
.tower-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(76px, 1fr));
  gap: 10px;
}
.tower-cell {
  border-radius: 12px;
  padding: 10px 8px 8px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  transition: transform var(--t-fast), box-shadow var(--t-fast);
  border: 1.5px solid transparent;
  position: relative;
  text-align: center;
}
.tower-cell:hover {
  transform: translateY(-3px) scale(1.04);
  z-index: 2;
  box-shadow: var(--shadow-md);
}
.tower-cell.t-green { background: var(--c-green-bg);   color: var(--c-green-text); border-color: var(--c-green-border); }
.tower-cell.t-amber { background: var(--c-amber-bg);   color: var(--c-amber-text); border-color: var(--c-amber-border); }
.tower-cell.t-red   { background: var(--c-red-bg);     color: var(--c-red-text);   border-color: var(--c-red-border); }
.tower-cell.t-gray  { background: var(--c-gray-bg);    color: var(--c-gray-text);  border-color: var(--c-gray-border); }
.tower-cell.t-stale { outline: 2px dashed #F59E0B; outline-offset: 2px; }

.tower-id-lbl  { font-size: 9px; font-weight: 600; opacity: .6; letter-spacing: .03em; }
.tower-qty-lbl { font-size: 11px; font-weight: 700; letter-spacing: -.01em; }
.tower-name-lbl {
  font-size: 8px;
  line-height: 1.3;
  max-width: 70px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  opacity: .75;
}
.tower-pin-star {
  position: absolute;
  top: 4px; right: 5px;
  font-size: 11px;
  cursor: pointer;
  z-index: 3;
  color: #F59E0B;
}
.aging-dot {
  position: absolute;
  top: 4px; left: 4px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #FB923C;
  border: 1px solid #EA580C;
}

/* ── Tile Rows ───────────────────────────────────────────── */
.tile-row {
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
  transition: box-shadow var(--t-fast), border-color var(--t-fast);
}
.tile-row:hover {
  box-shadow: var(--shadow-sm);
  border-color: var(--c-brand-border);
}
.tile-swatch {
  width: 32px; height: 32px;
  border-radius: 7px;
  border: 1px solid var(--c-border);
  flex-shrink: 0;
}
.tile-info    { flex: 1; min-width: 0; }
.tile-name    { font-size: 13px; font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tile-meta    { font-size: 11px; color: var(--c-text-muted); margin-top: 2px; }
.tile-qty-col { text-align: right; flex-shrink: 0; }
.tile-qty-val { font-size: 16px; font-weight: 700; letter-spacing: -.02em; }
.tile-qty-unit{ font-size: 10px; color: var(--c-text-muted); }
.tile-actions { display: flex; gap: 5px; margin-left: 4px; flex-shrink: 0; }

/* ── Swatch palette ──────────────────────────────────────── */
.swatch-beige      { background: #F5ECD7; }
.swatch-grey       { background: #B0B0B0; }
.swatch-white      { background: #F9F9F9; box-shadow: inset 0 0 0 1px #ddd; }
.swatch-marble     { background: linear-gradient(135deg,#E8E0D5 60%,#C8BDAF 100%); }
.swatch-anthracite { background: #3A3A3A; }
.swatch-terracotta { background: #C1694F; }
.swatch-brown      { background: #8B6144; }
.swatch-black      { background: #1A1A1A; }
.swatch-green      { background: #6A9E5E; }
.swatch-blue       { background: #5B7FA6; }
.swatch-custom     { background: #9E9E9E; }

.swatch-picker { display: flex; gap: 8px; flex-wrap: wrap; }
.swatch-option {
  width: 30px; height: 30px;
  border-radius: 7px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform var(--t-fast), border-color var(--t-fast);
  box-shadow: var(--shadow-xs);
}
.swatch-option:hover { transform: scale(1.18); }
.swatch-option.selected {
  border-color: var(--c-brand);
  transform: scale(1.12);
  box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}

/* ── History / Activity ──────────────────────────────────── */
.history-item {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--c-border-light);
}
.history-item:last-child { border-bottom: none; }
.hi-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 6px;
}
.hi-text { font-size: 13px; color: var(--c-text-primary); line-height: 1.5; }
.hi-time { font-size: 11px; color: var(--c-text-muted); margin-top: 2px; }

/* ── Info Bar ────────────────────────────────────────────── */
.info-bar {
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: 14px 20px;
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  align-items: center;
  box-shadow: var(--shadow-xs);
}
.ib { text-align: center; }
.ib-val { font-size: 20px; font-weight: 700; color: var(--c-text-primary); letter-spacing: -.02em; }
.ib-lbl { font-size: 10px; font-weight: 500; color: var(--c-text-muted); margin-top: 2px; text-transform: uppercase; letter-spacing: .4px; }

/* ── Modal ───────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
  opacity: 0;
  pointer-events: none;
  transition: opacity .22s;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal {
  background: var(--c-bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  padding: 28px;
  width: 480px;
  max-width: calc(100vw - 40px);
  max-height: calc(100vh - 80px);
  overflow-y: auto;
  transform: scale(.95) translateY(10px);
  transition: transform .25s cubic-bezier(.34,1.56,.64,1);
  border: 1px solid var(--c-border);
}
.modal-overlay.open .modal { transform: scale(1) translateY(0); }
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--c-border-light);
}
.modal-title { font-size: 17px; font-weight: 700; letter-spacing: -.02em; }
.modal-close {
  width: 30px; height: 30px;
  border-radius: 8px;
  border: 1px solid var(--c-border);
  background: transparent;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-text-muted);
  transition: all var(--t-fast);
}
.modal-close:hover { background: var(--c-bg-hover); color: var(--c-text-primary); }
.modal-footer {
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--c-border-light);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* ── Note Box ────────────────────────────────────────────── */
.note-box {
  background: var(--c-amber-bg);
  border: 1px solid var(--c-amber-border);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 13px;
  color: var(--c-amber-text);
  display: flex;
  gap: 10px;
  margin-bottom: 14px;
  line-height: 1.5;
}

/* ── Back Button ─────────────────────────────────────────── */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--c-brand);
  cursor: pointer;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--c-brand-border);
  background: var(--c-brand-light);
  text-decoration: none;
  font-weight: 500;
  margin-bottom: 16px;
  transition: all var(--t-fast);
}
.back-btn:hover {
  background: var(--c-brand-border);
  box-shadow: var(--shadow-xs);
}

/* ── Section Title ───────────────────────────────────────── */
.section-title {
  font-size: 10px;
  font-weight: 700;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 20px 0 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ── Add Dashed Button ───────────────────────────────────── */
.add-dashed {
  width: 100%;
  padding: 10px;
  border-radius: 10px;
  border: 1.5px dashed var(--c-border);
  background: transparent;
  color: var(--c-brand);
  font-size: 13px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin-top: 6px;
  font-weight: 600;
  transition: all var(--t-fast);
  font-family: var(--font);
}
.add-dashed:hover {
  background: var(--c-brand-light);
  border-color: var(--c-brand-border);
}

/* ── QR Box ──────────────────────────────────────────────── */
.qr-box {
  background: var(--c-bg-hover);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  padding: 18px;
  text-align: center;
  margin-bottom: 14px;
}

/* ── Detail Side Panel ───────────────────────────────────── */
.detail-panel {
  width: 290px;
  flex-shrink: 0;
  background: var(--c-bg-card);
  border-left: 1px solid var(--c-border);
  padding: 22px 20px;
  overflow-y: auto;
}
.panel-section-title {
  font-size: 10px;
  font-weight: 700;
  color: var(--c-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin: 18px 0 10px;
}

/* ── Toast ───────────────────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 28px;
  right: 24px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  background: var(--c-bg-topbar);
  color: #F1F5F9;
  padding: 12px 18px;
  border-radius: 12px;
  font-size: 13px;
  box-shadow: var(--shadow-modal);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: toastIn .3s cubic-bezier(.34,1.56,.64,1), fadeOut .3s ease 2.7s forwards;
  max-width: 340px;
  min-width: 220px;
  border: 1px solid rgba(255,255,255,.08);
}
.toast.success { border-left: 3px solid var(--c-green-dark); }
.toast.error   { border-left: 3px solid var(--c-red-dark); }
.toast.info    { border-left: 3px solid var(--c-brand); }

@keyframes toastIn {
  from { transform: translateX(20px) translateY(8px); opacity: 0; }
  to   { transform: translateX(0)    translateY(0);   opacity: 1; }
}
@keyframes fadeOut {
  to { opacity: 0; transform: translateX(8px); pointer-events: none; }
}
@keyframes slideUp {
  from { transform: translateY(16px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

/* ── Warehouse Zone Blocks (legacy grid view) ────────────── */
.map-area {
  position: relative;
  background: var(--c-bg-hover);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  overflow: hidden;
}
.zone-block {
  border-radius: 10px;
  cursor: pointer;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform var(--t-base), box-shadow var(--t-base);
  border: 2px solid transparent;
  position: relative;
  min-height: 120px;
}
.zone-block:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.zone-outdoor  { background: var(--c-blue-zone); border-color: var(--c-blue-zone-b) !important; }
.zone-hall1    { background: var(--c-green-bg);  border-color: var(--c-green-border) !important; }
.zone-hall2    { background: var(--c-amber-bg);  border-color: var(--c-amber-border) !important; }
.zone-new      { background: var(--c-gray-bg);   border-color: var(--c-gray-border) !important; border-style: dashed !important; }
.zone-name-lbl { font-size: 13px; font-weight: 600; }
.zone-count-lbl{ font-size: 11px; opacity: .7; margin-top: 2px; }
.zone-pct-lbl  { font-size: 22px; font-weight: 700; margin-top: auto; padding-top: 10px; }
.zone-bar-track{ height: 5px; border-radius: 3px; background: rgba(0,0,0,.08); margin-top: 8px; overflow: hidden; }
.zone-bar-fill { height: 100%; border-radius: 3px; background: rgba(0,0,0,.22); }
.zone-corner-badge {
  position: absolute; top: 8px; right: 8px;
  font-size: 9px;
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 600;
}
.zone-tooltip {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--c-bg-topbar);
  color: #F1F5F9;
  font-size: 11px;
  padding: 6px 12px;
  border-radius: 8px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--t-fast);
  z-index: 20;
  box-shadow: var(--shadow-md);
}
.zone-block:hover .zone-tooltip { opacity: 1; }

/* ── North arrow (map) ───────────────────────────────────── */
.north-arrow {
  position: absolute;
  top: 14px; right: 14px;
  width: 32px; height: 32px;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 800;
  color: var(--c-text-primary);
  z-index: 5;
  box-shadow: var(--shadow-sm);
}

/* ── Login Page ──────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-bg);
  padding: 20px;
}
.login-card {
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-xl);
  padding: 44px 40px;
  width: 390px;
  max-width: 100%;
  box-shadow: var(--shadow-modal);
}
.login-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
  justify-content: center;
}
.login-logo span { font-size: 22px; font-weight: 800; color: var(--c-brand); letter-spacing: -.03em; }
.login-logo i { font-size: 28px; color: var(--c-brand); }

/* ── Nav divider ─────────────────────────────────────────── */
.nav-divider { border: none; border-top: 1px solid var(--c-border); margin: 8px 0; }

/* ── Scrollbar ───────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--c-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--c-text-muted); }

/* ══════════════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════════════ */

/* ── Hamburger ─────────────────────────────────────────── */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px; height: 36px;
  background: rgba(255,255,255,.1);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 8px;
  flex-shrink: 0;
}
.hamburger span {
  display: block;
  height: 1.5px;
  background: rgba(255,255,255,.85);
  border-radius: 2px;
  transition: transform .2s, opacity .2s;
}
.sidebar-open .hamburger span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.sidebar-open .hamburger span:nth-child(2) { opacity: 0; }
.sidebar-open .hamburger span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ── Sidebar overlay ───────────────────────────────────── */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,.5);
  backdrop-filter: blur(2px);
  z-index: 89;
}
.sidebar-open .sidebar-overlay { display: block; }

/* ── Panel FAB ─────────────────────────────────────────── */
.panel-toggle-btn {
  display: none;
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--c-brand);
  color: #fff;
  border: none;
  box-shadow: 0 4px 16px rgba(37,99,235,.4), 0 2px 6px rgba(37,99,235,.2);
  font-size: 20px;
  align-items: center;
  justify-content: center;
  z-index: 200;
  cursor: pointer;
  transition: transform var(--t-fast), box-shadow var(--t-fast);
}
.panel-toggle-btn:hover {
  transform: scale(1.06);
  box-shadow: 0 6px 20px rgba(37,99,235,.5);
}

/* ── 1280px ─────────────────────────────────────────────── */
@media (max-width: 1280px) {
  .stats-row { grid-template-columns: repeat(3, 1fr); }
  .detail-panel { width: 270px; }
}

/* ── 1024px ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
  :root { --sidebar-w: 0px; }
  .sidebar {
    width: 230px;
    transform: translateX(-100%);
    transition: transform .25s ease;
    z-index: 90;
    box-shadow: none;
  }
  .sidebar-open .sidebar {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(15,23,42,.15);
  }
  .hamburger { display: flex; }
  .main-content { margin-left: 0; padding: 20px; }
  .stats-row { grid-template-columns: repeat(3, 1fr); }
  .detail-panel {
    position: fixed;
    top: var(--topbar-h); right: 0; bottom: 0;
    width: 300px;
    z-index: 95;
    transform: translateX(100%);
    transition: transform .25s ease;
    box-shadow: none;
  }
  .detail-panel.panel-open {
    transform: translateX(0);
    box-shadow: -4px 0 24px rgba(15,23,42,.12);
  }
  .panel-toggle-btn { display: flex; }
}

/* ── 768px ──────────────────────────────────────────────── */
@media (max-width: 768px) {
  :root { --topbar-h: 54px; }
  .main-content { padding: 16px 14px; }
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .breadcrumb { display: none; }
  .toolbar { flex-direction: column; align-items: flex-start; gap: 8px; }
  .toolbar-left, .toolbar-right { width: 100%; justify-content: flex-start; }
  .toolbar-right { flex-wrap: wrap; }
  .info-bar { gap: 14px; }
  .ib-val { font-size: 16px; }
  .tower-grid { grid-template-columns: repeat(auto-fill, minmax(66px, 1fr)); gap: 8px; }
  .modal { width: calc(100vw - 32px) !important; padding: 20px 18px; }
  .modal-overlay { align-items: flex-end; }
  .modal { border-radius: var(--radius-lg) var(--radius-lg) 0 0 !important; max-height: 90vh; }
  .login-card { padding: 30px 22px; }
  .detail-panel { width: 100%; }
  .zone-toolbar-search { width: 100% !important; }
  .zone-toolbar-btns { flex-wrap: wrap; width: 100%; }
}

/* ── 480px ──────────────────────────────────────────────── */
@media (max-width: 480px) {
  .main-content { padding: 14px 12px; }
  .stats-row { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .stat-val { font-size: 26px; }
  .page-title { font-size: 19px; }
  .back-btn span { display: none; }
  .back-btn { padding: 6px 10px; }
  .filter-row { flex-wrap: nowrap; overflow-x: auto; padding-bottom: 4px; scrollbar-width: none; }
  .filter-row::-webkit-scrollbar { display: none; }
  .filter-chip { flex-shrink: 0; }
  .tower-grid { grid-template-columns: repeat(auto-fill, minmax(56px, 1fr)); gap: 7px; }
  .tower-cell { padding: 7px 4px 6px; }
  .tower-qty-lbl { font-size: 10px; }
  .tower-name-lbl { display: none; }
  .info-bar { display: grid !important; grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .topbar .logo .logo-text { display: none; }
  .site-plan-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .site-plan-svg  { min-width: 560px; height: auto; }
  .bottom-grid-responsive { grid-template-columns: 1fr !important; }
  .topbar-right { gap: 6px; }
  .lang-btn { padding: 4px 8px; font-size: 10px; }
}

/* ── Print ──────────────────────────────────────────────── */
@media print {
  .topbar, .sidebar, .modal-overlay, .toast-container,
  .toolbar-right, .btn, .icon-btn, .back-btn,
  .panel-toggle-btn { display: none !important; }
  .main-content { margin: 0; padding: 12px; }
  body { background: #fff; color: #000; font-size: 12px; }
  .card, .tile-row { box-shadow: none; border: 1px solid #ddd; }
  .stat-card { box-shadow: none; }
}