/* =============================================
   WA-BIP CRM - Design System
   Theme: Light Blue & White, Modern Minimalist
   ============================================= */

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

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

:root {
    --primary: #42A5F5;
    --primary-light: #90CAF9;
    --primary-lighter: #BBDEFB;
    --primary-50: #E3F2FD;
    --primary-dark: #1E88E5;
    --primary-darker: #1565C0;
    --white: #FFFFFF;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    --success: #22C55E;
    --success-light: #DCFCE7;
    --warning: #F59E0B;
    --warning-light: #FEF3C7;
    --danger: #EF4444;
    --danger-light: #FEE2E2;
    --info: #3B82F6;
    --info-light: #DBEAFE;
    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 25px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 50px -12px rgba(0,0,0,0.12);
    --sidebar-width: 260px;
    --sidebar-collapsed: 72px;
    --header-height: 64px;
    --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    font-size: 14px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

.sidebar {
    width: var(--sidebar-width);
    background: var(--white);
    border-right: 1px solid var(--gray-100);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 100;
    transition: transform var(--transition), width var(--transition);
    overflow-y: auto;
    overflow-x: hidden;
}

.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--gray-200); border-radius: 4px; }

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left var(--transition);
}

/* ── Sidebar Brand ── */
.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px;
    border-bottom: 1px solid var(--gray-100);
}

.sidebar-brand img {
    height: 32px;
    max-width: 40px;
    object-fit: contain;
    border-radius: 4px;
    flex-shrink: 0;
}

.brand-icon {
    width: 40px; height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 3px 8px rgba(66,165,245,0.3);
}

.brand-icon svg { width: 22px; height: 22px; stroke: white; fill: none; }
.brand-text { font-size: 18px; font-weight: 700; color: var(--gray-800); white-space: nowrap; }
.brand-text span { color: var(--primary); }

/* ── Sidebar Nav ── */
.sidebar-nav { flex: 1; padding: 12px 10px; }
.nav-section { margin-bottom: 8px; }
.nav-section-title {
    font-size: 11px;
    font-weight: 600;
    color: var(--gray-400);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 8px 12px 6px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--radius);
    cursor: pointer;
    color: var(--gray-600);
    font-size: 13.5px;
    font-weight: 500;
    transition: all 0.15s ease;
    margin-bottom: 2px;
    white-space: nowrap;
}

.nav-item svg { width: 20px; height: 20px; stroke: currentColor; fill: none; flex-shrink: 0; stroke-width: 1.8; }
.nav-item:hover { background: var(--primary-50); color: var(--primary-dark); }
.nav-item.active { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: white; box-shadow: 0 2px 8px rgba(66,165,245,0.3); }
.nav-item.active svg { stroke: white; }

.sidebar-footer { padding: 10px; border-top: 1px solid var(--gray-100); }

/* ── Header ── */
.header {
    height: var(--header-height);
    background: rgba(255,255,255,0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-left { display: flex; align-items: center; gap: 16px; }
.header-right { display: flex; align-items: center; gap: 16px; }

.page-title { font-size: 18px; font-weight: 700; color: var(--gray-800); }

.btn-toggle-sidebar {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
    color: var(--gray-600);
}
.btn-toggle-sidebar svg { width: 22px; height: 22px; stroke: currentColor; fill: none; }
.btn-toggle-sidebar:hover { background: var(--gray-100); }

.header-search {
    display: flex;
    align-items: center;
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 0 12px;
    transition: all 0.2s;
}
.header-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(66,165,245,0.1); }
.header-search svg { width: 16px; height: 16px; stroke: var(--gray-400); fill: none; margin-right: 8px; }
.header-search input {
    border: none;
    background: none;
    outline: none;
    font-size: 13px;
    font-family: inherit;
    color: var(--gray-700);
    padding: 8px 0;
    width: 180px;
}

.btn-header-action {
    position: relative;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
    color: var(--gray-500);
    transition: all 0.15s;
}
.btn-header-action:hover { background: var(--gray-100); color: var(--gray-700); }
.btn-header-action svg { width: 20px; height: 20px; stroke: currentColor; fill: none; }
.badge-dot {
    position: absolute;
    top: 6px; right: 6px;
    width: 8px; height: 8px;
    background: var(--danger);
    border-radius: 50%;
    border: 2px solid white;
}

/* User Menu */
.user-menu {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 6px 10px;
    border-radius: var(--radius);
    transition: background 0.15s;
    position: relative;
}
.user-menu:hover { background: var(--gray-50); }

.user-avatar {
    width: 36px; height: 36px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 14px;
    flex-shrink: 0;
}

.user-info { display: flex; flex-direction: column; }
.user-name { font-size: 13px; font-weight: 600; color: var(--gray-800); line-height: 1.3; }
.user-role { font-size: 11px; color: var(--gray-400); }

.user-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: white;
    border: 1px solid var(--gray-100);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    min-width: 180px;
    overflow: hidden;
    z-index: 200;
    animation: fadeDown 0.15s ease;
}
.user-dropdown.show { display: block; }

@keyframes fadeDown { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: translateY(0); } }

.user-dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    font-size: 13px;
    color: var(--gray-600);
    cursor: pointer;
    transition: background 0.1s;
}
.user-dropdown-item:hover { background: var(--gray-50); }
.user-dropdown-item svg { width: 16px; height: 16px; stroke: currentColor; fill: none; }
.user-dropdown-item.danger { color: var(--danger); }
.user-dropdown-divider { height: 1px; background: var(--gray-100); }

/* ── Content ── */
.content { flex: 1; padding: 24px; }

/* ── Cards ── */
.card {
    background: var(--white);
    border: 1px solid var(--gray-100);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xs);
    transition: box-shadow 0.2s;
}
.card:hover { box-shadow: var(--shadow-sm); }
.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    border-bottom: 1px solid var(--gray-100);
}
.card-title { font-size: 15px; font-weight: 600; color: var(--gray-800); }
.card-body { padding: 20px; }
.card-footer { padding: 14px 20px; border-top: 1px solid var(--gray-100); }

/* Stat Cards */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; margin-bottom: 24px; }

.stat-card {
    background: var(--white);
    border: 1px solid var(--gray-100);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: all 0.2s;
    box-shadow: var(--shadow-xs);
}
.stat-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }

.stat-icon {
    width: 48px; height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.stat-icon svg { width: 24px; height: 24px; stroke: currentColor; fill: none; }
.stat-icon.blue { background: var(--primary-50); color: var(--primary); }
.stat-icon.green { background: var(--success-light); color: var(--success); }
.stat-icon.orange { background: var(--warning-light); color: var(--warning); }
.stat-icon.red { background: var(--danger-light); color: var(--danger); }

.stat-info { flex: 1; }
.stat-label { font-size: 12px; color: var(--gray-500); font-weight: 500; margin-bottom: 4px; }
.stat-value { font-size: 26px; font-weight: 700; color: var(--gray-800); line-height: 1.2; }
.stat-change { font-size: 12px; margin-top: 4px; }
.stat-change.up { color: var(--success); }
.stat-change.down { color: var(--danger); }

/* ── Buttons ── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 18px;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 600;
    font-family: inherit;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; stroke: currentColor; fill: none; }

.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: white; box-shadow: 0 2px 6px rgba(66,165,245,0.25); }
.btn-primary:hover { box-shadow: 0 4px 12px rgba(66,165,245,0.35); transform: translateY(-1px); }
.btn-secondary { background: var(--gray-100); color: var(--gray-700); }
.btn-secondary:hover { background: var(--gray-200); }
.btn-success { background: var(--success); color: white; }
.btn-danger { background: var(--danger); color: white; }
.btn-outline { background: transparent; border: 1.5px solid var(--gray-200); color: var(--gray-600); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-50); }
.btn-sm { padding: 6px 12px; font-size: 12px; border-radius: var(--radius-sm); }
.btn-icon { padding: 8px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }

/* ── Forms ── */
.form-group { margin-bottom: 18px; }
.form-label { display: block; font-size: 13px; font-weight: 600; color: var(--gray-700); margin-bottom: 6px; }
.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--gray-200);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: inherit;
    color: var(--gray-800);
    background: var(--white);
    transition: all 0.2s;
    outline: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(66,165,245,0.12); }
.form-input::placeholder { color: var(--gray-400); }
.form-textarea { min-height: 80px; resize: vertical; }
.form-hint { font-size: 12px; color: var(--gray-400); margin-top: 4px; }
.form-error { font-size: 12px; color: var(--danger); margin-top: 4px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ── Tables ── */
.table-wrapper { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; }
.table th {
    text-align: left;
    padding: 12px 16px;
    font-size: 12px;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    white-space: nowrap;
}
.table td { padding: 12px 16px; border-bottom: 1px solid var(--gray-100); font-size: 13px; color: var(--gray-700); }
.table tr:hover td { background: var(--gray-50); }
.table tr:last-child td { border-bottom: none; }

/* ── Badges ── */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    white-space: nowrap;
}
.badge-success { background: var(--success-light); color: #15803D; }
.badge-danger { background: var(--danger-light); color: #B91C1C; }
.badge-warning { background: var(--warning-light); color: #92400E; }
.badge-info { background: var(--info-light); color: #1D4ED8; }
.badge-gray { background: var(--gray-100); color: var(--gray-600); }
.badge-primary { background: var(--primary-50); color: var(--primary-dark); }

.badge-dot-indicator {
    width: 7px; height: 7px;
    border-radius: 50%;
    display: inline-block;
}
.badge-dot-indicator.green { background: var(--success); }
.badge-dot-indicator.red { background: var(--danger); }
.badge-dot-indicator.orange { background: var(--warning); }
.badge-dot-indicator.blue { background: var(--primary); }

/* ── Modal ── */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15,23,42,0.5);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn 0.15s ease;
}
.modal-overlay.show { display: flex; }

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

.modal {
    background: white;
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 520px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    animation: modalSlide 0.2s ease;
}
@keyframes modalSlide { from { transform: scale(0.95) translateY(10px); opacity: 0; } to { transform: scale(1) translateY(0); opacity: 1; } }

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-100);
}
.modal-title { font-size: 16px; font-weight: 700; color: var(--gray-800); }
.modal-close {
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    border-radius: var(--radius-sm);
    color: var(--gray-400);
    transition: all 0.15s;
}
.modal-close:hover { background: var(--gray-100); color: var(--gray-600); }
.modal-close svg { width: 18px; height: 18px; stroke: currentColor; fill: none; }
.modal-body { padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--gray-100); display: flex; justify-content: flex-end; gap: 10px; }

/* ── Toast ── */
.toast-container { position: fixed; top: 20px; right: 20px; z-index: 2000; display: flex; flex-direction: column; gap: 10px; }
.toast {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 18px;
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--primary);
    animation: toastIn 0.3s ease;
    min-width: 280px;
    max-width: 400px;
    font-size: 13px;
}
.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--warning); }
.toast svg { width: 18px; height: 18px; flex-shrink: 0; stroke: currentColor; fill: none; }
.toast-close { background: none; border: none; cursor: pointer; padding: 4px; margin-left: auto; color: var(--gray-400); }
.toast-close:hover { color: var(--gray-600); }

@keyframes toastIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ── Loading ── */
.loading-overlay {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 60px;
    color: var(--gray-400);
    font-size: 14px;
}
.spinner {
    width: 28px; height: 28px;
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.skeleton {
    background: linear-gradient(90deg, var(--gray-100) 25%, var(--gray-50) 50%, var(--gray-100) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-sm);
}
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ── Pagination ── */
.pagination { display: flex; align-items: center; justify-content: center; gap: 6px; margin-top: 20px; }
.pagination-btn {
    padding: 7px 12px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    background: white;
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    color: var(--gray-600);
    transition: all 0.15s;
}
.pagination-btn:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-50); }
.pagination-btn.active { background: var(--primary); color: white; border-color: var(--primary); }
.pagination-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.pagination-info { font-size: 13px; color: var(--gray-500); margin: 0 8px; }

/* ── Empty State ── */
.empty-state { text-align: center; padding: 50px 20px; color: var(--gray-400); }
.empty-state svg { width: 64px; height: 64px; stroke: var(--gray-300); fill: none; margin-bottom: 16px; }
.empty-state h3 { font-size: 16px; color: var(--gray-600); margin-bottom: 6px; }
.empty-state p { font-size: 13px; }

/* ── Status Dot ── */
.status-dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.status-dot.online { background: var(--success); box-shadow: 0 0 0 3px var(--success-light); }
.status-dot.offline { background: var(--gray-300); }

/* ── Charts container ── */
.chart-container { position: relative; width: 100%; }
.charts-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px; }

/* ── Mobile ── */
.mobile-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 99;
}
.mobile-nav-toggle { display: none; }

@media (max-width: 1024px) {
    .charts-grid { grid-template-columns: 1fr; }
    .header-search input { width: 140px; }
}

@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .mobile-overlay.show { display: block; }
    .mobile-nav-toggle { display: flex !important; }
    .main-content { margin-left: 0; }
    .content { padding: 16px; }
    .header { padding: 0 16px; }
    .header-search { display: none; }
    .user-info { display: none; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .stat-card { padding: 14px; }
    .stat-value { font-size: 20px; }
    .stat-icon { width: 40px; height: 40px; }
    .form-row { grid-template-columns: 1fr; }
    .modal { margin: 10px; border-radius: var(--radius-lg); }
    .page-title { font-size: 16px; }
}

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

/* ── Utility ── */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--gray-400); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-sm { font-size: 12px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.gap-2 { gap: 8px; }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-1 { flex: 1; }
.hidden { display: none !important; }