/* CORE — Design System */

:root {
  --bg-primary:    #f5f7fa;
  --bg-secondary:  #ffffff;
  --bg-tertiary:   #eef1f5;
  --border:        #dce1e8;
  --border-bright: #c5cdd8;

  --text-primary:  #1a2332;
  --text-secondary:#5a6b7d;
  --text-dim:      #8b9aab;

  --accent-cyan:   #0891b2;
  --accent-blue:   #0e7490;
  --accent-glow:   rgba(8, 145, 178, 0.12);

  --success:       #059669;
  --warning:       #d97706;
  --danger:        #dc2626;
  --info:          #4f46e5;

  /* Backward compat */
  --optronix-success: var(--success);
  --optronix-accent: var(--accent-cyan);
  --optronix-text-muted: var(--text-secondary);

  --radius-sm:     4px;
  --radius-md:     8px;
  --radius-lg:     16px;

  --shadow-card:   0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-hover:  0 4px 12px rgba(0,0,0,0.1), 0 0 0 1px rgba(8, 145, 178, 0.2);
}

/* Theme: Midnight (dark) */
body.theme-midnight {
  --bg-primary:    #0f172a;
  --bg-secondary:  #1e293b;
  --bg-tertiary:   #334155;
  --border:        #334155;
  --border-bright: #475569;

  --text-primary:  #f1f5f9;
  --text-secondary:#94a3b8;
  --text-dim:      #64748b;

  --accent-cyan:   #22d3ee;
  --accent-blue:   #06b6d4;
  --accent-glow:   rgba(34, 211, 238, 0.15);

  --shadow-card:   0 1px 3px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.2);
  --shadow-hover:  0 4px 12px rgba(0,0,0,0.4), 0 0 0 1px rgba(34, 211, 238, 0.25);
}

/* Font: Terminal (Cascadia Code) — default */
body.font-terminal {
  font-family: 'Cascadia Code', 'Consolas', monospace;
}
body.font-terminal h1, body.font-terminal h2, body.font-terminal h3, body.font-terminal h4 {
  font-family: 'Cascadia Code', 'Consolas', monospace;
}
body.font-terminal .mono, body.font-terminal code {
  font-family: 'Cascadia Code', 'Consolas', monospace;
}

/* Font: Editorial (Syne + DM Sans) */
body.font-editorial {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}
body.font-editorial h1, body.font-editorial h2, body.font-editorial h3, body.font-editorial h4 {
  font-family: 'Syne', sans-serif;
  font-weight: 600;
}
body.font-editorial .mono, body.font-editorial code {
  font-family: 'Consolas', 'Monaco', monospace;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-weight: 400;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  transition: background 0.3s ease, color 0.3s ease;
}

a {
  color: var(--accent-cyan);
  text-decoration: none;
}

a:hover { color: var(--accent-blue); }

/* Top accent line */
.top-accent {
  background: linear-gradient(90deg, transparent, var(--accent-cyan), var(--accent-blue), transparent);
  height: 2px;
}

/* Cards */
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 1rem;
  transition: all 0.2s ease;
}

.card:hover {
  border-color: var(--border-bright);
  box-shadow: var(--shadow-hover);
  transform: translateY(-1px);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 8px 20px;
  font-size: 0.875rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  text-align: center;
  transition: all 0.15s ease;
}

.btn-primary {
  background: var(--accent-cyan);
  color: #fff;
}

.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 20px var(--accent-glow);
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border-bright);
  color: var(--accent-cyan);
}

.btn-ghost:hover {
  background: rgba(0, 180, 216, 0.1);
}

.btn-secondary {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--border);
  border-color: var(--border-bright);
}

.btn-danger {
  background: var(--danger);
  color: white;
}

.btn-danger:hover { filter: brightness(1.1); }

.btn-warning {
  background: var(--warning);
  color: white;
}

.btn-warning:hover { filter: brightness(1.1); }

.btn-sm { padding: 6px 14px; font-size: 0.8125rem; }

/* Forms */
input, select, textarea {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 10px 14px;
  font-size: 0.875rem;
  width: 100%;
  font-family: inherit;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--accent-cyan);
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-glow);
}

input::placeholder, textarea::placeholder {
  color: var(--text-dim);
}

label {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.form-group { margin-bottom: 1rem; }

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  font-family: 'Cascadia Code', 'Consolas', monospace;
  font-weight: 500;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
}

tr:hover td { background: rgba(0, 0, 0, 0.02); }

/* Status badges */
.badge {
  display: inline-block;
  padding: 2px 10px;
  font-size: 0.75rem;
  font-weight: 500;
  border-radius: 999px;
}

.badge-success { background: rgba(16, 185, 129, 0.2); color: var(--success); }
.badge-warning { background: rgba(245, 158, 11, 0.2); color: var(--warning); }
.badge-danger { background: rgba(239, 68, 68, 0.2); color: var(--danger); }
.badge-info { background: rgba(99, 102, 241, 0.2); color: var(--info); }
.badge-default { background: rgba(139, 163, 188, 0.2); color: var(--text-secondary); }
.badge-active { background: rgba(16, 185, 129, 0.2); color: var(--success); }
.badge-inactive { background: rgba(139, 163, 188, 0.2); color: var(--text-secondary); }
.badge-prospect { background: rgba(0, 180, 216, 0.2); color: var(--accent-cyan); }
.badge-compliance.badge-pending { background: rgba(245, 158, 11, 0.2); color: var(--warning); }
.badge-compliance.badge-complete { background: rgba(16, 185, 129, 0.2); color: var(--success); }
.badge-compliance.badge-not_required,
.badge-compliance.badge-na { background: rgba(139, 163, 188, 0.2); color: var(--text-secondary); }
.badge-compliance.badge-none { background: transparent; color: var(--text-dim); }

/* Company logos & initials */
.company-logo { width: 48px; height: 48px; object-fit: contain; border-radius: var(--radius-sm); }
.logo-cell { width: 60px; padding-right: 0.75rem; vertical-align: middle; }
.company-initials {
  display: inline-flex; align-items: center; justify-content: center;
  width: 48px; height: 48px; border-radius: var(--radius-sm);
  background: var(--bg-tertiary); color: var(--text-secondary);
  font-size: 0.875rem; font-weight: 600;
}
.company-initials-lg { width: 64px; height: 64px; font-size: 1.25rem; }

/* Tom Select theme overrides */
.ts-control, .ts-wrapper.single .ts-control { background: var(--bg-tertiary); border-color: var(--border); color: var(--text-primary); }
.ts-wrapper.single .ts-control:focus { border-color: var(--accent-cyan); box-shadow: 0 0 0 1px var(--accent-cyan); }
.ts-dropdown { background: var(--bg-secondary); border-color: var(--border); }
.ts-dropdown .option { color: var(--text-primary); }
.ts-dropdown .option.active { background: var(--accent-glow); color: var(--accent-cyan); }
.ts-dropdown .option:hover { background: var(--bg-tertiary); }
.ts-dropdown .optgroup-header { color: var(--text-secondary); }
.ts-wrapper.single .ts-control .item { color: var(--text-primary); }
.ts-wrapper.single .ts-control input { color: var(--text-primary); }

/* Alerts */
.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
}

.alert-success { background: rgba(5, 150, 105, 0.12); border: 1px solid var(--success); color: #047857; }
.alert-danger { background: rgba(220, 38, 38, 0.12); border: 1px solid var(--danger); color: #b91c1c; }
.alert-warning { background: rgba(217, 119, 6, 0.12); border: 1px solid var(--warning); color: #b45309; }

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

.sidebar {
  width: 220px;
  background: var(--bg-secondary);
  flex-shrink: 0;
  border-right: 1px solid var(--border);
}

.sidebar-header {
  padding: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.logo {
  font-family: 'Cascadia Code', 'Consolas', monospace;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
}

.logo:hover { color: var(--accent-cyan); }

.sidebar-nav {
  padding: 1rem 0;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.25rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: all 0.15s ease;
}

.nav-item:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.nav-item.active {
  color: var(--accent-cyan);
  background: var(--accent-glow);
  border-left: 3px solid var(--accent-cyan);
}

.nav-icon {
  font-size: 1.2rem;
  opacity: 0.9;
}

.sidebar-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border);
  font-size: 0.8125rem;
  color: var(--text-secondary);
}

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  padding: 0 28px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}

.page-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
}

.user-menu {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-search input { font-size: 0.875rem; }
.notifications-btn { position: relative; color: var(--text-secondary); }
.notifications-btn:hover { color: var(--accent-cyan); }
.notification-badge { position: absolute; top: -4px; right: -4px; background: var(--danger); color: white; font-size: 0.65rem; padding: 2px 5px; border-radius: 999px; }

.user-name { font-size: 0.875rem; color: var(--text-secondary); }

.content-area {
  flex: 1;
  padding: 28px 32px;
  overflow: auto;
  animation: fadeIn 0.25s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: 3rem 2rem;
  color: var(--text-secondary);
}

.empty-state svg {
  width: 64px;
  height: 64px;
  margin-bottom: 1rem;
  opacity: 0.5;
}

/* ========== MOBILE OPTIMIZATION ========== */
/* Touch targets min 44px, safe areas, no hover-dependent UI */

:root {
  --touch-min: 44px;
  --safe-top: env(safe-area-inset-top, 0);
  --safe-bottom: env(safe-area-inset-bottom, 0);
  --safe-left: env(safe-area-inset-left, 0);
  --safe-right: env(safe-area-inset-right, 0);
}

/* Remove hover transforms on touch devices - can cause layout shift */
@media (hover: none) {
  .card:hover { transform: none; }
}

/* Tap highlight */
a, button, .btn, .nav-item, input, select, textarea {
  -webkit-tap-highlight-color: rgba(0, 180, 216, 0.2);
  touch-action: manipulation;
}

/* Menu toggle - hidden on desktop */
.menu-toggle {
  display: none;
  position: fixed;
  top: calc(14px + var(--safe-top));
  left: calc(14px + var(--safe-left));
  z-index: 1002;
  width: var(--touch-min);
  height: var(--touch-min);
  padding: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  box-shadow: var(--shadow-card);
}
.menu-toggle-bar {
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: transform 0.2s;
}
body.menu-open .menu-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
body.menu-open .menu-toggle-bar:nth-child(2) { opacity: 0; }
body.menu-open .menu-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 999;
  opacity: 0;
  transition: opacity 0.2s;
}
.sidebar-overlay.active {
  display: block;
  opacity: 1;
}

/* Mobile breakpoint */
@media (max-width: 767px) {
  .menu-toggle { display: flex; }
  
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    width: min(280px, 85vw);
    z-index: 1000;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    box-shadow: 4px 0 24px rgba(0,0,0,0.4);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  body.menu-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
  }
  
  .main-content {
    margin-left: 0;
  }
  
  .top-bar {
    padding-left: 72px;
    padding-right: 16px;
    padding-top: calc(14px + var(--safe-top));
    padding-bottom: 14px;
    min-height: calc(var(--touch-min) + 28px);
    height: auto;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
  }
  
  .page-title {
    font-size: 1.1rem;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    margin: 0;
    padding-right: 8px;
  }
  
  .user-menu {
    gap: 8px;
    flex-wrap: wrap;
  }
  
  .header-search {
    order: 3;
    width: 100%;
  }
  .header-search input {
    width: 100%;
    min-height: var(--touch-min);
    padding: 12px 16px;
    font-size: 16px; /* Prevents iOS zoom on focus */
  }
  
  .notifications-btn {
    min-width: var(--touch-min);
    min-height: var(--touch-min);
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .notifications-btn .material-symbols-outlined { font-size: 24px; }
  
  .content-area {
    padding: 16px;
    padding-bottom: calc(16px + var(--safe-bottom));
  }
  
  .btn, .btn-primary, .btn-ghost, .btn-danger {
    min-height: var(--touch-min);
    padding: 12px 20px;
    font-size: 1rem;
  }
  .btn-sm {
    min-height: 36px;
    padding: 8px 16px;
  }
  
  .card {
    padding: 1rem;
    margin-bottom: 0.75rem;
  }
  
  .card:hover {
    box-shadow: none;
  }
  
  /* Tables: horizontal scroll, smooth on iOS */
  .table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-left: -1rem;
    margin-right: -1rem;
    padding-left: 1rem;
    padding-right: 1rem;
  }
  .table-wrap table {
    min-width: 480px;
  }
  th, td {
    padding: 12px 10px;
    font-size: 0.9rem;
  }
  
  /* Form rows stack on mobile */
  .form-row,
  [style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
  }
  
  input, select, textarea {
    min-height: var(--touch-min);
    padding: 12px 16px;
    font-size: 16px; /* Prevents iOS zoom */
  }
  
  .nav-item {
    min-height: var(--touch-min);
    padding: 12px 1.25rem;
    font-size: 1rem;
  }
  
  .sidebar-footer a {
    min-height: var(--touch-min);
    display: inline-flex;
    align-items: center;
  }
}

/* Tablet and up - show sidebar normally */
@media (min-width: 768px) {
  .sidebar-overlay { display: none !important; }
}

/* Dashboard mobile */
@media (max-width: 767px) {
  .dashboard-metrics {
    grid-template-columns: 1fr 1fr !important;
    gap: 0.75rem;
    margin-bottom: 1rem;
  }
  .metric-tile {
    padding: 0.75rem;
  }
  .metric-value {
    font-size: 1.25rem;
  }
  .dashboard-grid {
    grid-template-columns: 1fr !important;
  }
  .quick-links {
    flex-wrap: wrap;
    gap: 0.5rem;
  }
  .quick-links .btn {
    flex: 1 1 auto;
    min-width: 120px;
  }
}
@media (max-width: 360px) {
  .dashboard-metrics {
    grid-template-columns: 1fr !important;
  }
}

/* Client tabs mobile */
@media (max-width: 767px) {
  .client-tabs .tab-buttons {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    flex-wrap: nowrap;
    padding-bottom: 8px;
    margin: 0 -16px 1rem;
    padding-left: 16px;
    padding-right: 16px;
    gap: 4px;
  }
  .client-tabs .tab-btn {
    flex-shrink: 0;
    min-height: var(--touch-min);
    padding: 10px 14px;
  }
  .detail-grid {
    grid-template-columns: 1fr !important;
  }
}

/* Tasks filter mobile */
@media (max-width: 767px) {
  .tasks-filters select {
    min-height: var(--touch-min);
    font-size: 16px;
    width: 100%;
  }
}

/* Search form */
.search-form {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.search-form input {
  flex: 1;
  min-width: 200px;
}
@media (max-width: 767px) {
  .search-form {
    flex-direction: column;
  }
  .search-form input {
    min-height: var(--touch-min);
    font-size: 16px;
    min-width: 0;
  }
  .search-form .btn {
    width: 100%;
  }
}

/* Pricing tool rows */
.pricing-row {
  display: grid;
  grid-template-columns: 2fr 80px 100px 80px auto;
  gap: 0.5rem;
  align-items: end;
  margin-bottom: 0.5rem;
}
@media (max-width: 767px) {
  .pricing-row {
    grid-template-columns: 1fr 1fr auto;
    grid-template-areas: "desc desc rm" "qty price total";
    gap: 0.5rem;
  }
  .pricing-row .pricing-desc { grid-area: desc; min-height: 44px; }
  .pricing-row .pricing-qty { grid-area: qty; min-height: 44px; font-size: 16px; }
  .pricing-row .pricing-price { grid-area: price; min-height: 44px; font-size: 16px; }
  .pricing-row .pricing-total { grid-area: total; align-self: center; }
  .pricing-row .rm-line { grid-area: rm; min-width: 44px; min-height: 44px; justify-self: end; }
}

/* Proposal form line items add row */
@media (max-width: 767px) {
  .add-line-row {
    flex-direction: column !important;
  }
  .add-line-row input,
  .add-line-row .btn {
    min-height: 44px !important;
    font-size: 16px !important;
    width: 100% !important;
    min-width: 0 !important;
  }
}

/* Project document form */
@media (max-width: 767px) {
  .doc-form {
    flex-direction: column !important;
  }
  .doc-form input {
    min-height: 44px !important;
    min-width: 0 !important;
  }
}

/* Topbar actions - stack on small screens */
@media (max-width: 480px) {
  .top-bar {
    flex-direction: column;
    align-items: stretch;
    padding-left: 72px;
    padding-right: 16px;
    padding-top: calc(14px + var(--safe-top));
    padding-bottom: 14px;
  }
  .top-bar .user-menu {
    flex-direction: column;
    align-items: stretch;
  }
  .page-title {
    white-space: normal;
    padding-right: 0;
  }
}

/* List page headers - full width add button on mobile */
@media (max-width: 767px) {
  [style*="margin-bottom:1rem"][style*="display:flex"] .btn-primary {
    flex: 1;
    min-width: 0;
  }
}

/* Detail page action buttons - wrap and touch-friendly */
.topbar-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}
@media (max-width: 767px) {
  .topbar-actions form {
    flex: 1 1 auto;
  }
  .topbar-actions .btn {
    min-width: 0;
  }
}

/* Revenue chart - full width on mobile */
@media (max-width: 767px) {
  #revenue-chart {
    max-height: 200px;
  }
}

/* Inline forms in tables - touch-friendly */
@media (max-width: 767px) {
  td form { display: inline-block; }
  td .btn-sm { min-height: 36px; min-width: 36px; padding: 8px; }
}

/* Appearance toggles — pill switch */
.appearance-toggle {
  display: inline-flex;
  background: var(--bg-tertiary);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
  position: relative;
  border: 1px solid var(--border);
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.06);
}
.theme-midnight .appearance-toggle {
  box-shadow: inset 0 1px 2px rgba(0,0,0,0.2);
}
.appearance-toggle-option {
  position: relative;
  z-index: 1;
  padding: 8px 18px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: color 0.25s ease;
  min-width: 100px;
  text-align: center;
}
.appearance-toggle-option:hover {
  color: var(--text-primary);
}
.appearance-toggle-option.active {
  color: var(--accent-cyan);
}
.appearance-toggle-slider {
  position: absolute;
  top: 3px;
  left: 3px;
  height: calc(100% - 6px);
  width: calc(50% - 4px);
  background: var(--bg-secondary);
  border-radius: 999px;
  box-shadow: var(--shadow-card), 0 0 0 1px var(--border);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}
.appearance-toggle-slider.right {
  transform: translateX(calc(100% + 2px));
}
.theme-midnight .appearance-toggle-slider {
  background: var(--bg-secondary);
  box-shadow: 0 2px 8px rgba(0,0,0,0.3), 0 0 0 1px var(--border);
}
.appearance-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--border);
}
.appearance-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.appearance-row:first-child {
  padding-top: 0;
}
.appearance-label {
  font-size: 0.875rem;
  color: var(--text-primary);
  font-weight: 500;
}
.appearance-sublabel {
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 2px;
}
@media (max-width: 480px) {
  .appearance-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
  .appearance-toggle-option {
    min-width: 88px;
    padding: 10px 16px;
    min-height: 44px;
  }
}

/* List items - touch-friendly tap targets */
@media (max-width: 767px) {
  .list-item {
    min-height: 48px;
    padding: 0.75rem 0;
    display: block;
  }
  .list-item a {
    display: block;
    padding: 0.25rem 0;
  }
}