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

/* ═══════════════════════════════════════════════════════════════
   BILLMANAGE — Material Design 3 Light Theme
   ═══════════════════════════════════════════════════════════════ */

:root {
    /* Primary */
    --primary:           #F97316;
    --primary-dark:      #EA580C;
    --primary-light:     #FFF7ED;
    --primary-shadow:    rgba(249, 115, 22, 0.25);

    /* Secondary */
    --secondary:         #6366F1;
    --secondary-light:   #EEF2FF;

    /* Surfaces */
    --surface:           #FFFFFF;
    --surface-variant:   #F8FAFC;
    --surface-hover:     #F1F5F9;

    /* Text */
    --on-surface:        #1E293B;
    --on-surface-muted:  #64748B;
    --on-surface-subtle: #94A3B8;

    /* Border */
    --border:            #E2E8F0;
    --border-focus:      #F97316;

    /* Status */
    --success:           #22C55E;
    --success-light:     #F0FDF4;
    --warning:           #F59E0B;
    --warning-light:     #FFFBEB;
    --danger:            #EF4444;
    --danger-light:      #FEF2F2;
    --info:              #06B6D4;
    --info-light:        #ECFEFF;
    --purple:            #8B5CF6;
    --purple-light:      #F5F3FF;

    /* Sidebar */
    --sidebar-bg:        #1E293B;
    --sidebar-hover:     #334155;
    --sidebar-active-bg: rgba(249, 115, 22, 0.12);
    --sidebar-text:      #94A3B8;
    --sidebar-text-dim:  #64748B;
    --sidebar-active:    #F97316;
    --sidebar-width:     240px;
    --sidebar-collapsed: 64px;

    /* Layout */
    --header-height:     64px;
    --radius:            8px;
    --radius-lg:         12px;
    --radius-xl:         16px;

    /* Shadows */
    --shadow-sm:  0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md:  0 4px 6px -1px rgb(0 0 0 / 0.07), 0 2px 4px -2px rgb(0 0 0 / 0.05);
    --shadow-lg:  0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -4px rgb(0 0 0 / 0.05);
    --shadow-xl:  0 20px 25px -5px rgb(0 0 0 / 0.08), 0 8px 10px -6px rgb(0 0 0 / 0.05);
}

/* ── RESET & BASE ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--surface-variant);
    color: var(--on-surface);
    font-size: 14px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

/* Custom Scrollbar */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: var(--on-surface-subtle); }

/* ── APP LAYOUT ─────────────────────────────────────────────── */
.app-wrapper {
    display: flex;
    min-height: 100vh;
}

/* ── SIDEBAR ────────────────────────────────────────────────── */
.sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    overflow-y: auto;
    overflow-x: hidden;
    z-index: 100;
    display: flex;
    flex-direction: column;
    transition: width 0.25s ease;
    flex-shrink: 0;
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed);
}

.sidebar::-webkit-scrollbar { width: 3px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--sidebar-hover); }

/* Logo */
.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 18px 16px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    flex-shrink: 0;
    min-height: 65px;
}

.logo-icon {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 15px;
    font-weight: 800;
    color: white;
    flex-shrink: 0;
    letter-spacing: -1px;
}

.sidebar-logo h2 {
    font-size: 15px;
    font-weight: 700;
    color: #F8FAFC;
    white-space: nowrap;
    overflow: hidden;
}

.sidebar-logo span {
    font-size: 10px;
    color: var(--sidebar-text-dim);
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-logo-text { overflow: hidden; }

/* Collapse button */
.sidebar-collapse-btn {
    position: absolute;
    top: 18px;
    right: -12px;
    width: 24px;
    height: 24px;
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 11px;
    color: var(--on-surface-muted);
    box-shadow: var(--shadow-md);
    transition: all 0.2s;
    z-index: 101;
}

.sidebar-collapse-btn:hover { background: var(--primary); color: white; border-color: var(--primary); }

/* Nav sections */
.nav-section {
    padding: 18px 16px 6px;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 1.4px;
    text-transform: uppercase;
    color: var(--sidebar-text-dim);
    white-space: nowrap;
    overflow: hidden;
}

.sidebar.collapsed .nav-section {
    visibility: hidden;
    height: 0;
    padding: 0;
}

/* Nav items */
.nav-item {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 9px 14px;
    margin: 1px 8px;
    border-radius: var(--radius);
    cursor: pointer;
    color: var(--sidebar-text);
    font-size: 13px;
    font-weight: 500;
    transition: all 0.15s;
    text-decoration: none;
    position: relative;
    white-space: nowrap;
    overflow: hidden;
}

.nav-item:hover {
    background: var(--sidebar-hover);
    color: #F1F5F9;
}

.nav-item.active {
    background: var(--sidebar-active-bg);
    color: var(--sidebar-active);
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background: var(--primary);
    border-radius: 0 3px 3px 0;
}

.nav-item i {
    width: 18px;
    text-align: center;
    font-size: 14px;
    flex-shrink: 0;
}

.nav-item span.nav-label { overflow: hidden; }

.nav-badge {
    margin-left: auto;
    background: var(--danger);
    color: white;
    font-size: 10px;
    padding: 1px 7px;
    border-radius: 10px;
    font-weight: 600;
    flex-shrink: 0;
}

.nav-pos-badge {
    margin-left: auto;
    background: rgba(249,115,22,0.18);
    color: var(--primary);
    font-size: 9px;
    padding: 2px 7px;
    border-radius: 10px;
    font-weight: 700;
    letter-spacing: 0.5px;
    flex-shrink: 0;
}

.sidebar.collapsed .nav-badge,
.sidebar.collapsed .nav-pos-badge,
.sidebar.collapsed .nav-label,
.sidebar.collapsed .sidebar-logo-text { display: none; }

.sidebar.collapsed .nav-item { margin: 1px auto; justify-content: center; padding: 10px; width: 44px; }
.sidebar.collapsed .nav-item::before { display: none; }
.sidebar.collapsed .nav-item.active { border-radius: var(--radius); background: var(--sidebar-active-bg); }

/* Sidebar user */
.sidebar-user {
    padding: 14px 16px;
    border-top: 1px solid rgba(255,255,255,0.06);
    margin-top: auto;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.sidebar-user .avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

.sidebar-user .user-name { font-size: 12px; font-weight: 600; color: #F1F5F9; white-space: nowrap; }
.sidebar-user .user-role { font-size: 10px; color: var(--sidebar-text-dim); white-space: nowrap; }
.sidebar-user .user-info { overflow: hidden; }

.sidebar-user .logout-link {
    margin-left: auto;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    color: var(--sidebar-text-dim);
    font-size: 13px;
    transition: all 0.15s;
    flex-shrink: 0;
}
.sidebar-user .logout-link:hover { background: rgba(239,68,68,0.15); color: var(--danger); }

.sidebar.collapsed .user-info, .sidebar.collapsed .logout-link { display: none; }
.sidebar.collapsed .sidebar-user { justify-content: center; padding: 14px 8px; }

/* Tooltip on collapsed */
.sidebar.collapsed .nav-item[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    left: calc(100% + 12px);
    top: 50%;
    transform: translateY(-50%);
    background: var(--on-surface);
    color: white;
    font-size: 12px;
    padding: 5px 10px;
    border-radius: 6px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s;
    z-index: 200;
}
.sidebar.collapsed .nav-item[data-tooltip]:hover::after { opacity: 1; }

/* Mobile sidebar overlay */
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.45);
    z-index: 99;
    display: none;
    backdrop-filter: blur(2px);
}
.sidebar-overlay.active { display: block; }

/* ── MAIN CONTENT ───────────────────────────────────────────── */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left 0.25s ease;
    min-width: 0;
}

.main-content.collapsed { margin-left: var(--sidebar-collapsed); }

/* ── TOP HEADER / TOPBAR ────────────────────────────────────── */
.top-header {
    height: var(--header-height);
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 20px 0 24px;
    position: sticky;
    top: 0;
    z-index: 99;
    gap: 12px;
    box-shadow: var(--shadow-sm);
}

.page-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--on-surface);
    white-space: nowrap;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    color: var(--on-surface-subtle);
    margin-top: 1px;
}

.breadcrumb a { color: var(--on-surface-muted); transition: color 0.15s; }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--on-surface-subtle); font-size: 10px; }
.breadcrumb .current { color: var(--primary); font-weight: 500; }

.header-actions {
    margin-left: auto;
    display: flex;
    gap: 8px;
    align-items: center;
}

/* Global Search Bar */
.global-search {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--surface-variant);
    border: 1.5px solid var(--border);
    border-radius: 20px;
    padding: 0 14px;
    height: 36px;
    width: 220px;
    transition: all 0.2s;
    cursor: text;
}

.global-search:focus-within {
    border-color: var(--primary);
    background: var(--surface);
    box-shadow: 0 0 0 3px var(--primary-shadow);
    width: 280px;
}

.global-search i { color: var(--on-surface-subtle); font-size: 12px; }

.global-search input {
    border: none;
    background: transparent;
    outline: none;
    font-size: 13px;
    color: var(--on-surface);
    width: 100%;
    font-family: inherit;
}

.global-search input::placeholder { color: var(--on-surface-subtle); }
.global-search .kbd { font-size: 10px; color: var(--on-surface-subtle); background: var(--border); padding: 1px 5px; border-radius: 4px; white-space: nowrap; }

/* Icon Button */
.icon-btn {
    width: 36px;
    height: 36px;
    background: transparent;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--on-surface-muted);
    font-size: 14px;
    transition: all 0.15s;
    position: relative;
    text-decoration: none;
}

.icon-btn:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }

.notif-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--danger);
    color: white;
    font-size: 9px;
    font-weight: 700;
    min-width: 16px;
    height: 16px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 3px;
    border: 2px solid var(--surface);
}

/* User Chip */
.user-chip {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px 12px 5px 5px;
    background: var(--surface-variant);
    border: 1.5px solid var(--border);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.15s;
}
.user-chip:hover { border-color: var(--primary); background: var(--primary-light); }

.user-chip .chip-avatar {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    color: white;
}

.user-chip span { font-size: 12px; font-weight: 500; color: var(--on-surface); }
.user-chip i { font-size: 10px; color: var(--on-surface-subtle); }

/* ── NOTIFICATION DROPDOWN ──────────────────────────────────── */
.dropdown-wrapper { position: relative; }

.notif-dropdown-content {
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    width: 340px;
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    z-index: 200;
    display: none;
    overflow: hidden;
}
.notif-dropdown-content.show { display: block; }

.notif-dropdown-header {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 13px;
    color: var(--on-surface);
}
.notif-dropdown-header a { font-size: 12px; color: var(--primary); font-weight: 500; }

.notif-dropdown-body { max-height: 380px; overflow-y: auto; }

.notif-drop-item {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    display: flex;
    gap: 12px;
    transition: background 0.15s;
}
.notif-drop-item:hover { background: var(--surface-variant); }
.notif-drop-item:last-child { border-bottom: none; }

.notif-drop-icon {
    width: 34px;
    height: 34px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 13px;
}
.notif-drop-icon.warning  { background: var(--warning-light); color: var(--warning); }
.notif-drop-icon.danger   { background: var(--danger-light);  color: var(--danger); }
.notif-drop-icon.info     { background: var(--info-light);    color: var(--info); }
.notif-drop-icon.primary  { background: var(--primary-light); color: var(--primary); }
.notif-drop-icon.muted    { background: var(--surface-variant); color: var(--on-surface-muted); }

.notif-drop-content { flex: 1; min-width: 0; }
.notif-drop-title { font-size: 13px; font-weight: 600; color: var(--on-surface); margin-bottom: 2px; }
.notif-drop-msg { font-size: 12px; color: var(--on-surface-muted); line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.notif-drop-time { font-size: 11px; color: var(--on-surface-subtle); margin-top: 4px; }

/* ── TOAST / FLASH MESSAGE ──────────────────────────────────── */
.toast-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 16px;
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    font-size: 13px;
    max-width: 360px;
    pointer-events: all;
    animation: slideInRight 0.3s ease;
    position: relative;
    overflow: hidden;
}

.toast::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    border-radius: 12px 0 0 12px;
}

.toast-success::before { background: var(--success); }
.toast-danger::before  { background: var(--danger); }
.toast-warning::before { background: var(--warning); }
.toast-info::before    { background: var(--info); }

.toast-icon { font-size: 15px; flex-shrink: 0; margin-top: 1px; }
.toast-success .toast-icon { color: var(--success); }
.toast-danger  .toast-icon { color: var(--danger); }
.toast-warning .toast-icon { color: var(--warning); }
.toast-info    .toast-icon { color: var(--info); }

.toast-body { flex: 1; color: var(--on-surface); }

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(20px); }
    to   { opacity: 1; transform: translateX(0); }
}

/* ── PAGE CONTENT ───────────────────────────────────────────── */
.page-content {
    padding: 24px;
    flex: 1;
}

/* ── PAGE HEADER ────────────────────────────────────────────── */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    gap: 12px;
}

.page-header-left h1 {
    font-size: 20px;
    font-weight: 700;
    color: var(--on-surface);
    line-height: 1.3;
}

.page-header-left .sub {
    font-size: 13px;
    color: var(--on-surface-muted);
    margin-top: 2px;
}

.page-header-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

/* ── CARDS ──────────────────────────────────────────────────── */
.card {
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: var(--shadow-sm);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.card-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--on-surface);
}

.card-subtitle {
    font-size: 12px;
    color: var(--on-surface-muted);
    margin-top: 2px;
}

/* ── STAT CARDS ─────────────────────────────────────────────── */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 20px;
}

.stat-card {
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px 20px;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s, transform 0.2s;
}

.stat-card:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }

.stat-card .stat-top { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 10px; }

.stat-card .stat-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.stat-card .stat-value {
    font-size: 22px;
    font-weight: 700;
    color: var(--on-surface);
    letter-spacing: -0.5px;
    line-height: 1.2;
}

.stat-card .stat-label {
    font-size: 12px;
    color: var(--on-surface-muted);
    margin-top: 4px;
}

.stat-card .stat-change {
    font-size: 12px;
    margin-top: 8px;
    display: flex;
    align-items: center;
    gap: 4px;
    font-weight: 500;
}

.stat-card.orange .stat-icon { background: #FFF7ED; color: var(--primary); }
.stat-card.green  .stat-icon { background: var(--success-light); color: var(--success); }
.stat-card.blue   .stat-icon { background: var(--secondary-light); color: var(--secondary); }
.stat-card.red    .stat-icon { background: var(--danger-light); color: var(--danger); }
.stat-card.purple .stat-icon { background: var(--purple-light); color: var(--purple); }
.stat-card.cyan   .stat-icon { background: var(--info-light); color: var(--info); }

/* ── TABLES ─────────────────────────────────────────────────── */
.table-wrapper {
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table-toolbar {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead th {
    padding: 11px 16px;
    text-align: left;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    color: var(--on-surface-muted);
    background: var(--surface-variant);
    border-bottom: 1.5px solid var(--border);
    white-space: nowrap;
}

.data-table tbody td {
    padding: 13px 16px;
    font-size: 13px;
    border-bottom: 1px solid var(--border);
    color: var(--on-surface);
    vertical-align: middle;
}

.data-table tbody tr:last-child td { border-bottom: none; }

.data-table tbody tr:hover td { background: var(--surface-variant); }

.table-footer {
    padding: 12px 16px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: var(--on-surface-muted);
    background: var(--surface-variant);
}

/* Pagination */
.pagination {
    display: flex;
    align-items: center;
    gap: 4px;
}

.page-btn {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    border: 1.5px solid var(--border);
    background: var(--surface);
    color: var(--on-surface-muted);
    font-size: 12px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s;
}

.page-btn:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }
.page-btn.active { background: var(--primary); border-color: var(--primary); color: white; font-weight: 600; }
.page-btn.disabled { opacity: 0.4; pointer-events: none; }

/* ── FORMS ──────────────────────────────────────────────────── */
.form-card {
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.form-section { margin-bottom: 28px; }

.form-section-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--on-surface);
    margin-bottom: 16px;
    padding-bottom: 10px;
    border-bottom: 1.5px solid var(--border);
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-section-title i { color: var(--primary); }

.form-group { margin-bottom: 16px; }

.form-label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--on-surface-muted);
    margin-bottom: 6px;
    letter-spacing: 0.2px;
}

.form-label .req { color: var(--danger); }

.form-control {
    width: 100%;
    padding: 9px 13px;
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    color: var(--on-surface);
    font-size: 13px;
    transition: border-color 0.15s, box-shadow 0.15s;
    outline: none;
    font-family: inherit;
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-shadow);
}

.form-control::placeholder { color: var(--on-surface-subtle); }
.form-control:disabled { background: var(--surface-variant); opacity: 0.7; cursor: not-allowed; }

select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 80px; }

.form-row   { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

.form-hint { font-size: 11px; color: var(--on-surface-subtle); margin-top: 4px; }
.form-error { font-size: 11px; color: var(--danger); margin-top: 4px; }

.input-group { display: flex; align-items: stretch; }
.input-group .form-control { border-radius: var(--radius) 0 0 var(--radius); }
.input-group-text {
    padding: 0 12px;
    background: var(--surface-variant);
    border: 1.5px solid var(--border);
    border-left: none;
    border-radius: 0 var(--radius) var(--radius) 0;
    font-size: 13px;
    color: var(--on-surface-muted);
    display: flex;
    align-items: center;
}

.input-icon-wrapper { position: relative; }
.input-icon-wrapper .form-control { padding-left: 36px; }
.input-icon-wrapper .input-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--on-surface-subtle);
    font-size: 13px;
    pointer-events: none;
}

/* Form actions bar */
.form-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
    padding-top: 20px;
    border-top: 1.5px solid var(--border);
    margin-top: 8px;
}

/* ── BUTTONS ────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 9px 18px;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    border: none;
    text-decoration: none;
    font-family: inherit;
    line-height: 1;
    white-space: nowrap;
}

.btn:disabled { opacity: 0.55; cursor: not-allowed; pointer-events: none; }

.btn-primary   { background: var(--primary);   color: white; }
.btn-primary:hover   { background: var(--primary-dark); box-shadow: 0 4px 12px var(--primary-shadow); transform: translateY(-1px); }

.btn-success   { background: var(--success);   color: white; }
.btn-success:hover   { filter: brightness(1.08); transform: translateY(-1px); }

.btn-danger    { background: var(--danger);    color: white; }
.btn-danger:hover    { filter: brightness(1.08); transform: translateY(-1px); }

.btn-warning   { background: var(--warning);   color: #1a1a1a; }
.btn-warning:hover   { filter: brightness(1.05); transform: translateY(-1px); }

.btn-secondary { background: var(--secondary); color: white; }
.btn-secondary:hover { filter: brightness(1.08); transform: translateY(-1px); }

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--border);
    color: var(--on-surface-muted);
}
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }

.btn-ghost {
    background: transparent;
    color: var(--on-surface-muted);
    padding: 9px 12px;
}
.btn-ghost:hover { color: var(--on-surface); background: var(--surface-hover); }

.btn-tonal { background: var(--primary-light); color: var(--primary); }
.btn-tonal:hover { background: #FDBA74; color: white; }

.btn-sm  { padding: 6px 12px; font-size: 12px; }
.btn-lg  { padding: 11px 24px; font-size: 14px; font-weight: 600; }
.btn-xl  { padding: 14px 28px; font-size: 15px; font-weight: 600; }
.btn-icon { width: 34px; height: 34px; padding: 0; justify-content: center; border-radius: var(--radius); }
.btn-icon.btn-sm { width: 28px; height: 28px; }

/* ── BADGES / CHIPS ─────────────────────────────────────────── */
.badge-pill {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.2px;
}

.badge-success { background: var(--success-light); color: #16A34A; border: 1px solid #BBF7D0; }
.badge-danger  { background: var(--danger-light);  color: #DC2626; border: 1px solid #FECACA; }
.badge-warning { background: var(--warning-light); color: #D97706; border: 1px solid #FDE68A; }
.badge-info    { background: var(--info-light);    color: #0E7490; border: 1px solid #A5F3FC; }
.badge-primary { background: var(--primary-light); color: #C2410C; border: 1px solid #FED7AA; }
.badge-secondary { background: var(--secondary-light); color: #4338CA; border: 1px solid #C7D2FE; }
.badge-purple  { background: var(--purple-light);  color: #7C3AED; border: 1px solid #DDD6FE; }
.badge-muted   { background: var(--surface-variant); color: var(--on-surface-muted); border: 1px solid var(--border); }

/* ── ALERTS ─────────────────────────────────────────────────── */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13px;
    border: 1.5px solid;
}

.alert i { flex-shrink: 0; margin-top: 1px; }

.alert-success { background: var(--success-light); border-color: #BBF7D0; color: #166534; }
.alert-danger  { background: var(--danger-light);  border-color: #FECACA; color: #991B1B; }
.alert-warning { background: var(--warning-light); border-color: #FDE68A; color: #92400E; }
.alert-info    { background: var(--info-light);    border-color: #A5F3FC; color: #164E63; }

/* ── MODALS ─────────────────────────────────────────────────── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay.active { display: flex; }

.modal-box {
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 24px;
    max-width: 540px;
    width: 100%;
    max-height: 88vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalIn 0.2s ease;
}

.modal-box.modal-lg { max-width: 720px; }
.modal-box.modal-sm { max-width: 400px; }

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.95) translateY(-10px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1.5px solid var(--border);
}

.modal-title { font-size: 16px; font-weight: 600; color: var(--on-surface); }

.modal-close {
    cursor: pointer;
    color: var(--on-surface-muted);
    font-size: 16px;
    background: var(--surface-variant);
    border: none;
    width: 28px;
    height: 28px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
}

.modal-close:hover { background: var(--danger-light); color: var(--danger); }

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1.5px solid var(--border);
}

/* ── TABS ───────────────────────────────────────────────────── */
.tabs {
    display: flex;
    gap: 2px;
    background: var(--surface-variant);
    border-radius: var(--radius);
    padding: 4px;
    border: 1.5px solid var(--border);
    width: fit-content;
    margin-bottom: 20px;
}

.tab-btn {
    padding: 7px 16px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    color: var(--on-surface-muted);
    cursor: pointer;
    border: none;
    background: transparent;
    font-family: inherit;
    transition: all 0.15s;
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
    text-decoration: none;
}

.tab-btn:hover { color: var(--on-surface); background: var(--surface-hover); }
.tab-btn.active { background: var(--surface); color: var(--primary); font-weight: 600; box-shadow: var(--shadow-sm); }

.tab-count {
    font-size: 10px;
    background: var(--border);
    color: var(--on-surface-muted);
    padding: 1px 6px;
    border-radius: 10px;
    font-weight: 600;
}

.tab-btn.active .tab-count { background: var(--primary-light); color: var(--primary); }

/* ── POS LAYOUT ─────────────────────────────────────────────── */
.pos-wrapper {
    display: flex;
    height: calc(100vh - var(--header-height) - 48px);
    gap: 16px;
}

.pos-left {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.pos-right {
    width: 360px;
    display: flex;
    flex-direction: column;
    background: var(--surface);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

/* ── EMPTY STATE ────────────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 56px 24px;
}

.empty-state .empty-icon {
    font-size: 40px;
    margin-bottom: 14px;
    color: var(--border);
}

.empty-state h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--on-surface-muted);
    margin-bottom: 6px;
}

.empty-state p {
    color: var(--on-surface-subtle);
    font-size: 13px;
    max-width: 280px;
    margin: 0 auto;
}

/* ── UTILITY CLASSES ────────────────────────────────────────── */
.mt-1{margin-top:4px}.mt-2{margin-top:8px}.mt-3{margin-top:12px}.mt-4{margin-top:16px}.mt-5{margin-top:24px}.mt-6{margin-top:32px}
.mb-1{margin-bottom:4px}.mb-2{margin-bottom:8px}.mb-3{margin-bottom:12px}.mb-4{margin-bottom:16px}.mb-5{margin-bottom:24px}
.d-flex{display:flex}.d-grid{display:grid}.d-none{display:none}.d-block{display:block}
.align-center{align-items:center}.align-start{align-items:flex-start}.justify-between{justify-content:space-between}.justify-end{justify-content:flex-end}.justify-center{justify-content:center}
.flex-1{flex:1}.flex-wrap{flex-wrap:wrap}.flex-col{flex-direction:column}
.gap-1{gap:4px}.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}.gap-5{gap:20px}
.w-100{width:100%}.text-center{text-align:center}.text-right{text-align:right}
.text-success{color:var(--success)}.text-danger{color:var(--danger)}.text-warning{color:var(--warning)}.text-muted{color:var(--on-surface-muted)}.text-primary{color:var(--primary)}
.fw-400{font-weight:400}.fw-500{font-weight:500}.fw-600{font-weight:600}.fw-700{font-weight:700}
.fs-10{font-size:10px}.fs-11{font-size:11px}.fs-12{font-size:12px}.fs-13{font-size:13px}.fs-14{font-size:14px}.fs-16{font-size:16px}.fs-18{font-size:18px}.fs-20{font-size:20px}.fs-24{font-size:24px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}
.grid-4{display:grid;grid-template-columns:1fr 1fr 1fr 1fr;gap:16px}
.rounded{border-radius:var(--radius)}.rounded-lg{border-radius:var(--radius-lg)}.rounded-full{border-radius:9999px}
.shadow-sm{box-shadow:var(--shadow-sm)}.shadow-md{box-shadow:var(--shadow-md)}
.overflow-hidden{overflow:hidden}.text-nowrap{white-space:nowrap}
.divider{border:none;border-top:1.5px solid var(--border);margin:16px 0}
.text-truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cursor-pointer{cursor:pointer}
.text-accent{color:var(--primary)}
.bg-surface{background:var(--surface)}.bg-variant{background:var(--surface-variant)}

/* ── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .global-search { display: none; }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        box-shadow: 10px 0 30px rgba(0,0,0,0.2);
        width: var(--sidebar-width) !important;
    }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0 !important; }

    .top-header { padding: 0 16px; }

    .stat-grid { grid-template-columns: 1fr 1fr; }
    .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .form-row, .form-row-3 { grid-template-columns: 1fr; }

    .pos-wrapper { flex-direction: column; height: auto; }
    .pos-right { width: 100%; }

    .table-wrapper { overflow-x: auto; }
    .data-table { min-width: 600px; }

    .page-header { flex-direction: column; align-items: flex-start; gap: 12px; }
    .page-header .page-header-actions { width: 100%; }

    .modal-box { padding: 18px; }
    .tabs { overflow-x: auto; width: 100%; }
}

@media (max-width: 480px) {
    .stat-grid { grid-template-columns: 1fr; }
    .page-content { padding: 16px; }
    .user-chip span { display: none; }
}

/* ── PRINT STYLES ───────────────────────────────────────────── */
@media print {
    .sidebar, .top-header, .page-header-actions, .no-print { display: none !important; }
    .main-content { margin-left: 0 !important; }
    .page-content { padding: 0 !important; }
    body { background: white; color: black; font-size: 12px; }
    .card, .table-wrapper { border: 1px solid #ccc; box-shadow: none; }
}