:root {
  --radius: 0.75rem;
  --background: oklch(0.981 0.004 253);
  --foreground: oklch(0.2 0.03 260);
  --card: oklch(1 0 0);
  --card-foreground: oklch(0.2 0.03 260);
  --popover: oklch(1 0 0);
  --popover-foreground: oklch(0.2 0.03 260);
  --primary: oklch(0.53 0.21 262);
  --primary-hover: oklch(0.48 0.21 262);
  --primary-foreground: oklch(0.99 0 0);
  --secondary: oklch(0.96 0.01 250);
  --secondary-foreground: oklch(0.25 0.03 260);
  --muted: oklch(0.96 0.008 250);
  --muted-foreground: oklch(0.5 0.02 260);
  --accent: oklch(0.94 0.03 250);
  --accent-foreground: oklch(0.3 0.05 260);
  --destructive: oklch(0.6 0.22 25);
  --destructive-foreground: oklch(0.99 0 0);
  --success: oklch(0.65 0.16 155);
  --success-foreground: oklch(0.99 0 0);
  --warning: oklch(0.75 0.15 75);
  --warning-foreground: oklch(0.2 0.03 260);
  --info: oklch(0.65 0.14 220);
  --info-foreground: oklch(0.99 0 0);
  --border: oklch(0.9 0.01 255);
  --input: oklch(0.92 0.01 255);
  --ring: oklch(0.53 0.21 262);
  --chart-1: oklch(0.55 0.19 255);
  --chart-2: oklch(0.65 0.16 155);
  --chart-3: oklch(0.75 0.15 75);
  --chart-4: oklch(0.6 0.22 25);
  --chart-5: oklch(0.6 0.2 300);
  --sidebar: oklch(0.19 0.045 266);
  --sidebar-foreground: oklch(0.85 0.02 260);
  --sidebar-primary: oklch(0.6 0.2 255);
  --sidebar-primary-foreground: oklch(0.99 0 0);
  --sidebar-accent: oklch(0.26 0.05 265);
  --sidebar-accent-foreground: oklch(0.98 0 0);
  --sidebar-border: oklch(0.28 0.045 265);
  --sidebar-ring: oklch(0.6 0.2 255);
  --shadow-color: 255 65% 30%;
}

* { border-color: var(--border); box-sizing: border-box; }
html, body { height: 100%; }
html { scroll-behavior: smooth; }
body {
  background-color: var(--background);
  color: var(--foreground);
  font-family: 'Inter', ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* page background (gradient removed on request) */
body {
  background-color: var(--background);
}

::selection { background: oklch(0.53 0.21 262 / 0.22); }

/* ==================== SCROLLBAR ==================== */
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: var(--muted-foreground); }
* { scrollbar-width: thin; scrollbar-color: var(--border) transparent; }

/* ==================== FOCUS ==================== */
a, button, input, select, textarea, [tabindex] { transition: box-shadow .15s ease, background-color .15s ease, border-color .15s ease, color .15s ease, transform .1s ease, opacity .15s ease; }
:focus-visible { outline: none; box-shadow: 0 0 0 3px oklch(0.53 0.21 262 / 0.35); border-radius: 4px; }

/* ==================== BUTTONS ==================== */
button, a.inline-flex, a[class*="rounded-md"] { will-change: transform; }
button:not(:disabled):active, a:not([href="#"]):active { transform: translateY(1px); }

button[class*="bg-primary"], a[class*="bg-primary"] {
  background: var(--primary);
  box-shadow: 0 1px 2px oklch(0.53 0.21 262 / 0.35), 0 4px 12px -4px oklch(0.53 0.21 262 / 0.45);
  border: 1px solid oklch(0.48 0.21 262 / 0.6);
}
button[class*="bg-primary"]:hover, a[class*="bg-primary"]:hover {
  box-shadow: 0 2px 4px oklch(0.53 0.21 262 / 0.4), 0 8px 20px -6px oklch(0.53 0.21 262 / 0.55);
  transform: translateY(-1px);
  filter: brightness(1.04);
}
button[class*="bg-destructive"] { box-shadow: 0 1px 2px oklch(0.6 0.22 25 / 0.3), 0 4px 10px -4px oklch(0.6 0.22 25 / 0.4); }
button[class*="bg-destructive"]:hover { transform: translateY(-1px); filter: brightness(1.05); }

button[class*="border-input"], a[class*="border-input"] { background-color: var(--card); }
button[class*="border-input"]:hover, a[class*="border-input"]:hover { border-color: oklch(0.7 0.03 260); box-shadow: 0 2px 8px -4px rgba(0,0,0,.12); transform: translateY(-1px); }

/* ==================== CARDS ==================== */
.bg-card.border-border, div[class*="bg-card"][class*="border"] {
  transition: box-shadow .2s ease, transform .2s ease, border-color .2s ease;
  box-shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 1px 6px -2px rgba(15, 23, 42, .06);
}
.bg-card.border-border:hover { box-shadow: 0 10px 30px -12px rgba(15, 23, 42, .18); border-color: oklch(0.85 0.02 255); }
/* NOTE: no gradient bar/border on card hover (removed on request) */

/* Stat card icon pop */
.grid > .rounded-xl.border.bg-card .rounded-lg[class*="grid"] { transition: transform .25s ease; }
.rounded-xl.border.bg-card:hover .rounded-lg[class*="place-items-center"] { transform: scale(1.08) rotate(-3deg); }

/* ==================== INPUTS ==================== */
input, select, textarea {
  transition: box-shadow .15s ease, border-color .15s ease, background-color .15s ease;
}
input[class*="border-input"], select[class*="border-input"], textarea[class*="border-input"] {
  background-color: var(--card);
}
input[class*="border-input"]:hover, select[class*="border-input"]:hover, textarea[class*="border-input"]:hover { border-color: oklch(0.7 0.03 260); }
input[class*="border-input"]:focus, select[class*="border-input"]:focus, textarea[class*="border-input"]:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px oklch(0.53 0.21 262 / 0.15);
}
input::placeholder, textarea::placeholder { color: var(--muted-foreground); opacity: .8; }

/* ==================== BADGES ==================== */
span[class*="rounded-md"][class*="text-xs"] { font-weight: 600; letter-spacing: .01em; }

/* ==================== TABLES ==================== */
table { border-collapse: separate; border-spacing: 0; }
table thead th { position: sticky; top: 0; z-index: 5; backdrop-filter: blur(6px); background: color-mix(in oklch, var(--muted) 92%, transparent); }
table tbody tr { transition: background-color .12s ease; }
table tbody tr:nth-child(even) { background: color-mix(in oklch, var(--muted) 35%, transparent); }
.overflow-x-auto.rounded-xl.border { box-shadow: 0 1px 3px rgba(15,23,42,.05); }

/* ==================== SIDEBAR (desktop collapse) ==================== */
#app-sidebar { width: 17rem; transition: width .2s ease, transform .25s cubic-bezier(.4,0,.2,1); background: linear-gradient(180deg, var(--sidebar), oklch(0.16 0.04 266)); }
#app-sidebar.collapsed { width: 4.25rem; }
#app-sidebar.collapsed .sidebar-label,
#app-sidebar.collapsed .sidebar-chevron,
#app-sidebar.collapsed .sidebar-sub,
#app-sidebar.collapsed .sidebar-title-block { display: none !important; }
#app-sidebar.collapsed .sidebar-logout-label { display: none; }

.sidebar-group.open > .sidebar-sub { display: block; animation: sub-in .15s ease; }
.sidebar-sub { display: none; }
.sidebar-chevron { transition: transform .15s ease; }
.sidebar-group.open .sidebar-chevron { transform: rotate(180deg); }
@keyframes sub-in { from { opacity: 0; transform: translateY(-4px);} to { opacity: 1; transform: translateY(0);} }

#app-sidebar nav a, #app-sidebar .sidebar-group-btn { position: relative; }
#app-sidebar nav a[class*="bg-sidebar-accent"]::before {
  content: ''; position: absolute; left: -.5rem; top: 50%; transform: translateY(-50%);
  width: 3px; height: 60%; border-radius: 999px; background: var(--sidebar-primary);
}
#app-sidebar nav a:not([class*="bg-sidebar-accent"]):hover,
.sidebar-group-btn:hover { transform: translateX(2px); }

/* ==================== MOBILE SIDEBAR DRAWER ==================== */
#sidebar-backdrop {
  position: fixed; inset: 0; background: rgba(10, 12, 20, .55); backdrop-filter: blur(2px);
  z-index: 39; opacity: 0; pointer-events: none; transition: opacity .2s ease;
}
#sidebar-backdrop.show { opacity: 1; pointer-events: auto; }

@media (max-width: 1023px) {
  #app-sidebar {
    position: fixed; inset: 0 auto 0 0; z-index: 40; width: 17.5rem;
    transform: translateX(-100%); box-shadow: 0 0 40px rgba(0,0,0,.35);
  }
  #app-sidebar.mobile-open { transform: translateX(0); }
  #app-sidebar.collapsed { width: 17.5rem; }
  #app-sidebar.collapsed .sidebar-label,
  #app-sidebar.collapsed .sidebar-chevron,
  #app-sidebar.collapsed .sidebar-sub,
  #app-sidebar.collapsed .sidebar-title-block { display: revert !important; }
  #app-sidebar.collapsed .sidebar-logout-label { display: revert; }
}

/* ==================== TOPBAR ==================== */
header.sticky { box-shadow: 0 1px 0 var(--border); }

/* ==================== TOAST ==================== */
#toast-root { position: fixed; top: 1rem; right: 1rem; left: auto; z-index: 100; display: flex; flex-direction: column; gap: .5rem; max-width: calc(100vw - 2rem); }
.toast {
  min-width: 240px; max-width: 360px; padding: .8rem 1.1rem; border-radius: .75rem;
  font-size: .875rem; font-weight: 500; color: #fff; box-shadow: 0 10px 30px -8px rgba(0,0,0,.35), 0 2px 6px rgba(0,0,0,.15);
  animation: toast-in .2s cubic-bezier(.4,0,.2,1);
  display: flex; align-items: center; gap: .5rem;
  backdrop-filter: saturate(1.4);
}
.toast.success { background: linear-gradient(135deg, oklch(0.65 0.16 155), oklch(0.58 0.16 155)); }
.toast.error { background: linear-gradient(135deg, oklch(0.62 0.22 25), oklch(0.55 0.22 25)); }
@keyframes toast-in { from { opacity: 0; transform: translateY(-10px) scale(.97);} to { opacity: 1; transform: translateY(0) scale(1);} }
@media (max-width: 480px) {
  #toast-root { left: 1rem; right: 1rem; align-items: stretch; }
  .toast { max-width: none; }
}

/* ==================== SWITCH ==================== */
.ui-switch { position: relative; display: inline-block; width: 42px; height: 24px; }
.ui-switch input { opacity: 0; width: 0; height: 0; }
.ui-switch .track { position: absolute; inset: 0; background: var(--input); border-radius: 999px; transition: .2s; cursor: pointer; box-shadow: inset 0 1px 2px rgba(0,0,0,.08); }
.ui-switch .track:before { content: ""; position: absolute; height: 18px; width: 18px; left: 3px; top: 3px; background: white; border-radius: 999px; transition: .2s cubic-bezier(.4,0,.2,1); box-shadow: 0 1px 3px rgba(0,0,0,.25); }
.ui-switch input:checked + .track { background: linear-gradient(180deg, var(--primary), var(--primary-hover)); }
.ui-switch input:checked + .track:before { transform: translateX(18px); }

/* ==================== ANIMATIONS ==================== */
@keyframes fade-up { from { opacity: 0; transform: translateY(8px);} to { opacity: 1; transform: translateY(0);} }
main > div.space-y-6, main > form, main > div#dt-root { animation: fade-up .3s ease-out; }

/* ==================== RESPONSIVE TABLE -> CARD ==================== */
@media (max-width: 640px) {
  table.crm-responsive-table thead { display: none; }
  table.crm-responsive-table, table.crm-responsive-table tbody, table.crm-responsive-table tr, table.crm-responsive-table td {
    display: block; width: 100%;
  }
  table.crm-responsive-table tr {
    border: 1px solid var(--border); border-radius: .75rem; margin-bottom: .75rem; padding: .5rem .25rem;
    background: var(--card); box-shadow: 0 1px 3px rgba(15,23,42,.06);
  }
  table.crm-responsive-table tr:nth-child(even) { background: var(--card); }
  table.crm-responsive-table td { border: none !important; display: flex; justify-content: space-between; align-items: center; gap: .75rem; padding: .5rem .75rem; text-align: right; }
  table.crm-responsive-table td[data-label]:before {
    content: attr(data-label); font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .04em;
    color: var(--muted-foreground); text-align: left; margin-right: auto;
  }
  table.crm-responsive-table td.dt-cell-check, table.crm-responsive-table td.dt-cell-actions { justify-content: flex-end; }
  table.crm-responsive-table td.dt-cell-check:before, table.crm-responsive-table td.dt-cell-actions:before { content: none; }
}

/* ==================== MISC ==================== */
.grid.grid-cols-2.gap-3, .grid.gap-4, .grid.gap-3 { animation: fade-up .35s ease-out; }
h1.text-2xl, h1.text-3xl, h2.text-3xl { letter-spacing: -.02em; }
canvas { border-radius: .5rem; }

/* Small screens: tighter paddings */
@media (max-width: 480px) {
  main { padding: 1rem !important; }
  h1.text-2xl { font-size: 1.35rem; }
}

/* ==========================================================================
   CRM Suite — UI system v2 (dark mode, dropdowns, tabs, modals, settings)
   ========================================================================== */
html.dark {
  --background: oklch(0.17 0.02 265); --foreground: oklch(0.96 0.005 260);
  --card: oklch(0.22 0.025 265); --card-foreground: oklch(0.96 0.005 260);
  --popover: oklch(0.23 0.025 265); --popover-foreground: oklch(0.96 0.005 260);
  --primary: oklch(0.62 0.19 262); --primary-foreground: oklch(0.99 0 0);
  --secondary: oklch(0.28 0.03 265); --secondary-foreground: oklch(0.95 0 0);
  --muted: oklch(0.27 0.025 265); --muted-foreground: oklch(0.72 0.02 260);
  --accent: oklch(0.3 0.04 265); --accent-foreground: oklch(0.97 0 0);
  --border: oklch(0.32 0.02 265); --input: oklch(0.34 0.02 265);
  --sidebar: oklch(0.14 0.03 266); --sidebar-border: oklch(0.25 0.03 265);
}
html.dark .bg-emerald-50 { background: oklch(0.28 0.06 160); color: oklch(0.9 0.08 160); }
html.dark .bg-rose-50 { background: oklch(0.28 0.08 20); color: oklch(0.92 0.07 20); }
html.dark .bg-amber-50 { background: oklch(0.3 0.07 80); color: oklch(0.93 0.07 85); }

html[data-density="compact"] main { padding: 1rem !important; }
html[data-density="compact"] table td { padding-top: .45rem; padding-bottom: .45rem; }
html[data-density="compact"] .card-panel { padding: 1rem; }

/* ---------- icon button ---------- */
.icon-btn {
  display: grid; place-items: center; height: 2.25rem; width: 2.25rem; border-radius: .625rem;
  color: var(--foreground); background: transparent; transition: background .15s ease, color .15s ease;
}
.icon-btn:hover { background: var(--muted); }

/* ---------- sidebar v2 ---------- */
#app-sidebar { width: 17.5rem; }
#app-sidebar.collapsed { width: 4.5rem; }
#app-sidebar.collapsed .sidebar-divider { margin-inline: .75rem; }
#app-sidebar.collapsed .nav-link { justify-content: center; padding-inline: 0; }
.sidebar-divider { height: 1px; background: linear-gradient(90deg, transparent, var(--sidebar-border), transparent); margin: 0 1rem .25rem; }
.nav-active { background: color-mix(in oklch, var(--sidebar-primary) 24%, transparent); color: #fff; font-weight: 600; }
#app-sidebar .nav-link, #app-sidebar .nav-sublink { transition: background .15s ease, color .15s ease, transform .12s ease; }
#app-sidebar.collapsed .nav-link[data-tip]:hover::after,
#app-sidebar.collapsed .sidebar-group-btn[data-tip]:hover::after {
  content: attr(data-tip); position: absolute; left: calc(100% + .6rem); top: 50%; transform: translateY(-50%);
  background: var(--popover); color: var(--popover-foreground); border: 1px solid var(--border);
  padding: .3rem .55rem; border-radius: .45rem; font-size: .75rem; white-space: nowrap; z-index: 60;
  box-shadow: 0 8px 24px -8px rgba(0,0,0,.4);
}

/* ---------- dropdown ---------- */
.dropdown {
  position: absolute; z-index: 50; border-radius: .85rem; border: 1px solid var(--border);
  background: var(--popover); color: var(--popover-foreground); padding: .3rem;
  box-shadow: 0 18px 45px -15px rgba(15,23,42,.35), 0 4px 12px -6px rgba(15,23,42,.2);
  opacity: 0; visibility: hidden; transform: translateY(-6px) scale(.98);
  transition: opacity .14s ease, transform .14s ease, visibility .14s;
}
[data-dropdown].open > .dropdown { opacity: 1; visibility: visible; transform: translateY(0) scale(1); }
.dropdown-item {
  display: flex; align-items: center; gap: .55rem; border-radius: .55rem;
  padding: .5rem .6rem; font-size: .875rem; color: inherit;
}
.dropdown-item:hover { background: var(--muted); }
.dropdown-sep { height: 1px; margin: .3rem .2rem; background: var(--border); }

/* ---------- chips ---------- */
.chip {
  display: inline-flex; align-items: center; gap: .3rem; border-radius: 999px; border: 1px solid var(--border);
  padding: .25rem .7rem; font-size: .75rem; font-weight: 600; color: var(--muted-foreground); background: transparent;
}
.chip:hover { background: var(--muted); }
.chip-active { background: var(--primary); border-color: var(--primary); color: var(--primary-foreground); }

/* ---------- notification list ---------- */
.notif-item { cursor: pointer; border-bottom: 1px solid var(--border); transition: background .12s ease; }
.notif-item:last-child { border-bottom: 0; }
.notif-item:hover { background: color-mix(in oklch, var(--muted) 60%, transparent); }
.notif-item.unread { background: color-mix(in oklch, var(--primary) 6%, transparent); }
.line-clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }

/* ---------- tabs ---------- */
.tablist { display: flex; gap: .25rem; overflow-x: auto; border-bottom: 1px solid var(--border); padding-bottom: 0; margin-bottom: 1.25rem; }
.tab {
  display: inline-flex; align-items: center; gap: .4rem; white-space: nowrap; border-bottom: 2px solid transparent;
  padding: .65rem .9rem; font-size: .875rem; font-weight: 500; color: var(--muted-foreground);
}
.tab:hover { color: var(--foreground); }
.tab-active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.tabpanel { display: none; }
.tabpanel.panel-active { display: block; animation: sub-in .18s ease; }

/* ---------- settings shell ---------- */
.settings-shell { display: grid; grid-template-columns: 1fr; gap: 1.25rem; }
@media (min-width: 1024px) { .settings-shell { grid-template-columns: 15rem 1fr; align-items: start; } }
.settings-nav {
  display: flex; gap: .25rem; overflow-x: auto; border: 1px solid var(--border); background: var(--card);
  border-radius: .9rem; padding: .35rem;
}
@media (min-width: 1024px) { .settings-nav { position: sticky; top: 5rem; flex-direction: column; overflow: visible; } }
.settings-tab { border-bottom: 0 !important; border-radius: .6rem; justify-content: flex-start; width: 100%; padding: .55rem .7rem; }
.settings-tab.tab-active { background: color-mix(in oklch, var(--primary) 12%, transparent); color: var(--primary); }
.settings-panels > .tabpanel { min-width: 0; }

/* ---------- panels / form primitives ---------- */
.card-panel { border: 1px solid var(--border); background: var(--card); border-radius: 1rem; padding: 1.5rem; box-shadow: 0 1px 3px rgba(15,23,42,.05); }
.panel-title { font-size: 1rem; font-weight: 600; }
.panel-sub { margin-top: .15rem; font-size: .875rem; color: var(--muted-foreground); }
.lbl { display: block; margin-bottom: .35rem; font-size: .875rem; font-weight: 500; }
.inp {
  width: 100%; border: 1px solid var(--input); background: var(--card); color: var(--foreground);
  border-radius: .6rem; padding: .5rem .75rem; font-size: .875rem; outline: none;
}
.inp:focus { border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in oklch, var(--primary) 18%, transparent); }
.btn-primary { display: inline-flex; align-items: center; gap: .4rem; border-radius: .6rem; background: var(--primary); color: var(--primary-foreground); padding: .55rem 1rem; font-size: .875rem; font-weight: 500; }
.btn-outline { display: inline-flex; align-items: center; gap: .4rem; border-radius: .6rem; border: 1px solid var(--input); background: var(--card); padding: .55rem 1rem; font-size: .875rem; }
.btn-outline:hover { background: var(--muted); }
.btn-ghost { display: inline-flex; align-items: center; gap: .35rem; border-radius: .5rem; padding: .35rem .6rem; font-size: .8125rem; font-weight: 500; color: var(--primary); }
.btn-ghost:hover { background: var(--muted); }
.switch-row { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; border-radius: .6rem; padding: .6rem .25rem; }
.switch-row:hover { background: color-mix(in oklch, var(--muted) 55%, transparent); }
.accent-swatch { cursor: pointer; border: 2px solid transparent; border-radius: .75rem; padding: .3rem; }
.accent-swatch.is-selected, .accent-swatch:has(input:checked) { border-color: var(--primary); background: color-mix(in oklch, var(--primary) 8%, transparent); }

/* ---------- modal ---------- */
.modal { position: fixed; inset: 0; z-index: 80; display: none; padding: 1rem; overflow-y: auto; background: rgba(9,11,20,.55); backdrop-filter: blur(3px); }
.modal.open { display: grid; place-items: start center; }
.modal-card { width: 100%; max-width: 42rem; margin-top: 4vh; border-radius: 1rem; border: 1px solid var(--border); background: var(--card); box-shadow: 0 30px 70px -20px rgba(0,0,0,.5); animation: toast-in .18s ease; }
.modal-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; border-bottom: 1px solid var(--border); padding: 1rem 1.25rem; }
.modal-body { padding: 1.25rem; }
.modal-foot { display: flex; align-items: center; justify-content: flex-end; gap: .5rem; border-top: 1px solid var(--border); padding: 1rem 1.25rem; }

/* ---------- profile ---------- */
.profile-cover { height: 8rem; background: linear-gradient(120deg, var(--primary), oklch(0.62 0.2 300) 55%, oklch(0.7 0.16 200)); position: relative; }
.profile-cover::after { content: ''; position: absolute; inset: 0; background-image: radial-gradient(rgba(255,255,255,.22) 1px, transparent 1px); background-size: 14px 14px; opacity: .5; }
.timeline-item { position: relative; padding: 0 0 1.1rem 1.35rem; border-left: 2px solid var(--border); }
.timeline-item:last-child { border-left-color: transparent; padding-bottom: 0; }
.timeline-item::before { content: ''; position: absolute; left: -.3rem; top: .3rem; height: .55rem; width: .55rem; border-radius: 999px; background: var(--primary); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }