/* ============================================================
   WaSellio — Global Design System
   Inspired by modern Nigerian SaaS: clean, fast, professional
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
    /* Brand Colors */
    --color-primary:       #0F766E;   /* Deep teal/emerald — brand identity */
    --color-primary-dark:  #0D6560;
    --color-primary-light: #14B8A6;
    --color-whatsapp:      #25D366;   /* WhatsApp green — CTA highlight */
    --color-whatsapp-dark: #1DA851;

    /* Neutrals */
    --color-slate-900:  #0F172A;
    --color-slate-800:  #1E293B;
    --color-slate-700:  #334155;
    --color-slate-600:  #475569;
    --color-slate-400:  #94A3B8;
    --color-slate-200:  #E2E8F0;
    --color-slate-100:  #F1F5F9;
    --color-slate-50:   #F8FAFC;
    --color-white:      #FFFFFF;

    /* Semantic Colors */
    --color-success:  #16A34A;
    --color-warning:  #D97706;
    --color-danger:   #DC2626;
    --color-info:     #0284C7;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs:   0.75rem;    /* 12px */
    --font-size-sm:   0.875rem;   /* 14px */
    --font-size-base: 1rem;       /* 16px */
    --font-size-lg:   1.125rem;   /* 18px */
    --font-size-xl:   1.25rem;    /* 20px */
    --font-size-2xl:  1.5rem;     /* 24px */
    --font-size-3xl:  1.875rem;   /* 30px */
    --font-size-4xl:  2.25rem;    /* 36px */

    /* Spacing */
    --space-1:  0.25rem;
    --space-2:  0.5rem;
    --space-3:  0.75rem;
    --space-4:  1rem;
    --space-5:  1.25rem;
    --space-6:  1.5rem;
    --space-8:  2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;

    /* Border Radius */
    --radius-sm:   0.375rem;
    --radius-md:   0.5rem;
    --radius-lg:   0.75rem;
    --radius-xl:   1rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm:  0 1px 2px 0 rgba(0,0,0,0.05);
    --shadow-md:  0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.07);
    --shadow-lg:  0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.08);
    --shadow-xl:  0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.06);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

/* ============================================================
   Dark Mode — html.dark overrides
   Applied when JS sets class="dark" on <html>
   Persisted in localStorage (wasellio_theme / wasellio_store_theme)
   ============================================================ */
html.dark {
    color-scheme: dark;
}

html.dark body {
    background-color: #0F172A;
    color: #CBD5E1;
}

/* Dashboard dark mode layout */
html.dark .sidebar {
    background: #020617 !important;
    border-right: 1px solid #1E293B !important;
}
html.dark .sidebar-brand {
    border-bottom: 1px solid #1E293B !important;
}
html.dark .sidebar-footer {
    border-top: 1px solid #1E293B !important;
}
html.dark .nav-item {
    color: #94A3B8 !important;
}
html.dark .nav-item:hover,
html.dark .nav-item.active {
    background: rgba(16,185,129,0.12) !important;
    color: #34D399 !important;
}
html.dark .sidebar-section-label {
    color: #475569 !important;
}
html.dark .topbar {
    background: #0F172A !important;
    border-bottom: 1px solid #1E293B !important;
}
html.dark .topbar-title {
    color: #E2E8F0 !important;
}
html.dark .main-content {
    background: #0F172A !important;
}
html.dark .page-content {
    background: #0F172A !important;
}

/* Cards dark mode */
html.dark .card {
    background: #1E293B !important;
    border: 1px solid #334155 !important;
}
html.dark .card-header {
    border-bottom: 1px solid #334155 !important;
    background: #1E293B !important;
}
html.dark .card-body {
    background: #1E293B !important;
}

/* Tables dark mode */
html.dark table th {
    background: #0F172A !important;
    color: #94A3B8 !important;
    border-bottom: 1px solid #334155 !important;
}
html.dark table td {
    border-bottom: 1px solid #1E293B !important;
    color: #CBD5E1 !important;
}
html.dark table tr:hover td {
    background: #1E293B !important;
}

/* Form controls dark mode */
html.dark .form-control,
html.dark .form-input,
html.dark select,
html.dark textarea,
html.dark input[type="text"],
html.dark input[type="email"],
html.dark input[type="tel"],
html.dark input[type="number"],
html.dark input[type="password"],
html.dark input[type="search"] {
    background: #0F172A !important;
    border-color: #334155 !important;
    color: #E2E8F0 !important;
}
html.dark .form-control:focus,
html.dark .form-input:focus {
    border-color: #10B981 !important;
    box-shadow: 0 0 0 3px rgba(16,185,129,0.15) !important;
}
html.dark .form-label {
    color: #94A3B8 !important;
}

/* Alert/badge dark mode */
html.dark .alert-success { background: #064E3B !important; border-color: #065F46 !important; color: #6EE7B7 !important; }
html.dark .alert-danger  { background: #450A0A !important; border-color: #7F1D1D !important; color: #FCA5A5 !important; }

/* Button ghost dark mode */
html.dark .btn-ghost { color: #94A3B8 !important; }
html.dark .btn-ghost:hover { background: #1E293B !important; color: #E2E8F0 !important; }
html.dark .btn-secondary { background: #1E293B !important; border-color: #334155 !important; color: #E2E8F0 !important; }

/* Storefront dark mode specific overrides */
html.dark .store-sticky-header,
html.dark .store-top-bar {
    background: rgba(15,23,42,0.97) !important;
    border-bottom-color: #334155 !important;
}
html.dark .store-profile-card {
    background: #1E293B !important;
    border-bottom-color: #334155 !important;
}
html.dark .store-name { color: #F8FAFC !important; }
html.dark .store-description-text { color: #94A3B8 !important; }
html.dark .store-catalog-wrap { background: transparent !important; }
html.dark .store-product-card {
    background: #1E293B !important;
    border-color: #334155 !important;
}
html.dark .store-card-body { background: #1E293B !important; }
html.dark .card-product-title { color: #E2E8F0 !important; }
html.dark .card-product-title:hover { color: #34D399 !important; }
html.dark .search-box-input {
    background: #1E293B !important;
    border-color: #334155 !important;
    color: #E2E8F0 !important;
}
html.dark .search-box-input::placeholder { color: #475569 !important; }
html.dark .sort-select {
    background: #1E293B !important;
    border-color: #334155 !important;
    color: #E2E8F0 !important;
}
html.dark .category-tab {
    background: #1E293B !important;
    border-color: #334155 !important;
    color: #94A3B8 !important;
}
html.dark .category-tab.active {
    background: var(--color-primary) !important;
    color: #fff !important;
}
html.dark .filter-toggle-chip {
    background: #1E293B !important;
    border-color: #334155 !important;
    color: #94A3B8 !important;
}
html.dark .contact-chip {
    background: #1E293B !important;
    border-color: #334155 !important;
    color: #CBD5E1 !important;
}
html.dark .product-layout {
    background: #1E293B !important;
    border-color: #334155 !important;
}
html.dark .product-title { color: #F8FAFC !important; }
html.dark .product-description-wrap { color: #94A3B8 !important; }
html.dark .qty-controls {
    background: #0F172A !important;
    border-color: #334155 !important;
}
html.dark .qty-btn {
    background: #1E293B !important;
    color: #E2E8F0 !important;
}
html.dark .cat-drawer,
html.dark .buyer-profile-dropdown {
    background: #1E293B !important;
    border-color: #334155 !important;
}
html.dark .cat-drawer-title { color: #F8FAFC !important; }
html.dark .mobile-bottom-bar {
    background: #0F172A !important;
    border-top-color: #1E293B !important;
}
html.dark .mobile-bottom-item { color: #64748B !important; }
html.dark .mobile-bottom-item.active { color: var(--color-primary) !important; }
html.dark footer { color: #475569 !important; }
html.dark #liveSearchResults {
    background: #1E293B !important;
    border-color: #334155 !important;
}
html.dark .checkout-dialog {
    background: #1E293B !important;
}
html.dark .checkout-header {
    background: #1E293B !important;
    border-bottom-color: #334155 !important;
}
html.dark .checkout-form-input {
    background: #0F172A !important;
    border-color: #334155 !important;
    color: #E2E8F0 !important;
}
html.dark .checkout-product-summary {
    background: #0F172A !important;
    border-color: #334155 !important;
}

/* Merchant mobile bottom nav dark */
html.dark .merchant-bottom-nav {
    background: #0F172A !important;
    border-top: 1px solid #1E293B !important;
}
html.dark .merchant-bottom-item {
    color: #475569 !important;
}
html.dark .merchant-bottom-item.active {
    color: #10B981 !important;
}

/* Page content area dark */
html.dark .dashboard-layout {
    background: #0F172A !important;
}

/* Smooth color transition when toggling */
html body,
html .card,
html .sidebar,
html .topbar,
html .store-product-card,
html .store-profile-card,
html .product-layout {
    transition: background-color 0.25s ease, border-color 0.2s ease, color 0.2s ease;
}

/* ============================================================
   Skeleton Shimmer — Loading placeholder animation
   Usage: <div class="skeleton-shimmer" style="width:X; height:Y"></div>
   ============================================================ */
@keyframes skeleton-shimmer {
    0%   { background-position: -400px 0; }
    100% { background-position: 400px 0; }
}

.skeleton-shimmer {
    background: linear-gradient(90deg, #E2E8F0 25%, #F1F5F9 50%, #E2E8F0 75%);
    background-size: 800px 100%;
    animation: skeleton-shimmer 1.4s ease-in-out infinite;
    border-radius: 6px;
}

html.dark .skeleton-shimmer {
    background: linear-gradient(90deg, #1E293B 25%, #334155 50%, #1E293B 75%);
    background-size: 800px 100%;
    animation: skeleton-shimmer 1.4s ease-in-out infinite;
}

/* ============================================================
   Dark mode toggle button — shared across buyer & seller
   ============================================================ */
.dark-mode-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    background: rgba(148,163,184,0.12);
    color: #64748B;
    transition: all 0.2s ease;
    flex-shrink: 0;
}
.dark-mode-toggle:hover {
    background: rgba(16,185,129,0.15);
    color: #10B981;
    transform: rotate(15deg);
}
html.dark .dark-mode-toggle {
    background: rgba(100,116,139,0.2);
    color: #94A3B8;
}
html.dark .dark-mode-toggle:hover {
    background: rgba(16,185,129,0.2);
    color: #34D399;
}

/* --- Reset & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    overflow-x: hidden;
    max-width: 100vw;
    width: 100%;
}

body {
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    color: var(--color-slate-800);
    background-color: var(--color-slate-50);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    max-width: 100vw;
    width: 100%;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}
a:hover { color: var(--color-primary-dark); }

img { max-width: 100%; display: block; }

/* --- Layout Utilities --- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.container-sm {
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

/* --- Cards --- */
.card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    min-width: 0;
    max-width: 100%;
    box-sizing: border-box;
}

.card-body {
    padding: var(--space-6);
}

.card-header {
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--color-slate-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    font-weight: 600;
    padding: 0.625rem var(--space-5);
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
    line-height: 1;
    letter-spacing: 0.01em;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-white);
}
.btn-primary:hover {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-whatsapp {
    background-color: var(--color-whatsapp);
    color: var(--color-white);
}
.btn-whatsapp:hover {
    background-color: var(--color-whatsapp-dark);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--color-white);
    color: var(--color-slate-700);
    border: 1.5px solid var(--color-slate-200);
    box-shadow: var(--shadow-sm);
}
.btn-secondary:hover {
    background-color: var(--color-slate-50);
    border-color: var(--color-slate-300);
    color: var(--color-slate-900);
}

.btn-white {
    background-color: var(--color-white);
    color: var(--color-slate-800);
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: var(--shadow-sm);
}
.btn-white:hover {
    background-color: var(--color-slate-50);
    color: var(--color-slate-900);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
}
.btn-outline:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.btn-ghost {
    background-color: transparent;
    color: var(--color-slate-600);
}
.btn-ghost:hover {
    background-color: var(--color-slate-100);
    color: var(--color-slate-800);
}

.btn-danger {
    background-color: var(--color-danger);
    color: var(--color-white);
}
.btn-danger:hover { background-color: #B91C1C; color: var(--color-white); }

.btn-sm {
    font-size: var(--font-size-xs);
    padding: 0.45rem 0.85rem;
    border-radius: var(--radius-sm);
}

.btn-lg {
    font-size: var(--font-size-base);
    padding: 0.875rem var(--space-8);
    border-radius: var(--radius-lg);
}

.btn-block { width: 100%; }

/* --- Form Elements --- */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    margin-bottom: var(--space-5);
}

.form-label {
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--color-slate-700);
    letter-spacing: 0.01em;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.form-label .req {
    color: var(--color-danger);
    margin-left: 2px;
}

.form-control,
.form-input {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    color: var(--color-slate-800);
    background-color: var(--color-white);
    border: 1.5px solid var(--color-slate-200);
    border-radius: var(--radius-md);
    padding: 0.72rem 1rem;
    width: 100%;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
    outline: none;
    line-height: 1.5;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.02);
}

.form-control::placeholder,
.form-input::placeholder {
    color: var(--color-slate-400);
    font-size: 0.85rem;
}

.form-control:hover,
.form-input:hover {
    border-color: #cbd5e1;
}

.form-control:focus,
.form-input:focus {
    border-color: var(--color-primary);
    background-color: #ffffff;
    box-shadow: 0 0 0 3.5px rgba(15, 118, 110, 0.14);
}

select.form-control,
select.form-input {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.85rem center;
    background-size: 1.1rem;
    padding-right: 2.5rem;
    cursor: pointer;
}

textarea.form-control,
textarea.form-input {
    min-height: 120px;
    font-family: var(--font-sans);
    line-height: 1.6;
    resize: vertical;
}

.form-control.is-invalid,
.form-input.is-invalid {
    border-color: var(--color-danger);
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

.form-text {
    font-size: 0.78rem;
    color: var(--color-slate-500);
    margin-top: 0.2rem;
    line-height: 1.4;
}

.invalid-feedback {
    font-size: var(--font-size-xs);
    color: var(--color-danger);
    font-weight: 500;
}

/* --- Badges --- */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.28rem 0.65rem;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: 700;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    line-height: 1.2;
}

.badge-success { background: #DCFCE7; color: #166534; }
.badge-warning { background: #FEF3C7; color: #92400E; }
.badge-danger  { background: #FEE2E2; color: #991B1B; }
.badge-info    { background: #DBEAFE; color: #1E40AF; }
.badge-primary { background: #CCFBF1; color: #0F766E; }

/* --- Alerts / Flash Messages --- */
.alert {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: 500;
    margin-bottom: var(--space-4);
    border-left: 4px solid;
    position: relative;
    transition: opacity 0.35s ease, transform 0.35s ease, max-height 0.35s ease, margin 0.35s ease, padding 0.35s ease;
}

.alert-dismiss-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    color: currentColor;
    opacity: 0.55;
    font-size: 1.35rem;
    line-height: 1;
    padding: 0 0.35rem;
    border-radius: 4px;
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.2s;
    flex-shrink: 0;
}
.alert-dismiss-btn:hover {
    opacity: 1;
}

.alert-info {
    background: #EFF6FF;
    color: #1E40AF;
    border-color: #3B82F6;
}

.alert-success {
    background: #F0FDF4;
    color: #166534;
    border-color: var(--color-success);
}

.alert-danger {
    background: #FFF1F2;
    color: #991B1B;
    border-color: var(--color-danger);
}

.alert-warning {
    background: #FFFBEB;
    color: #92400E;
    border-color: var(--color-warning);
}

/* --- Tables & Data Grids --- */
.table-wrap,
.table-responsive {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    display: block;
}

table.table,
.table {
    width: 100% !important;
    min-width: 650px;
    border-collapse: collapse !important;
    text-align: left;
    font-size: var(--font-size-sm);
    color: var(--color-slate-700);
}

table.table thead,
.table thead {
    background-color: #F8FAFC;
    border-bottom: 1px solid var(--color-slate-200);
}

table.table th,
.table th {
    padding: 0.85rem 1.25rem !important;
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-slate-500);
    white-space: nowrap;
    vertical-align: middle;
    border-bottom: 1px solid var(--color-slate-200);
    text-align: left;
}

table.table th[style*="text-align:right"],
table.table th[style*="text-align: right"],
.table th[style*="text-align:right"],
.table th[style*="text-align: right"],
.table th.text-right {
    text-align: right !important;
}

table.table th[style*="text-align:center"],
table.table th[style*="text-align: center"],
.table th[style*="text-align:center"],
.table th[style*="text-align: center"],
.table th.text-center {
    text-align: center !important;
}

table.table td,
.table td {
    padding: 1rem 1.25rem !important;
    vertical-align: middle;
    border-bottom: 1px solid var(--color-slate-100);
    background-color: var(--color-white);
    transition: background-color var(--transition-fast);
}

table.table td[style*="text-align:right"],
table.table td[style*="text-align: right"],
.table td[style*="text-align:right"],
.table td[style*="text-align: right"],
.table td.text-right {
    text-align: right !important;
}

table.table td[style*="text-align:center"],
table.table td[style*="text-align: center"],
.table td[style*="text-align:center"],
.table td[style*="text-align: center"],
.table td.text-center {
    text-align: center !important;
}

table.table tbody tr:hover td,
.table tbody tr:hover td {
    background-color: #F8FAFC;
}

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

/* --- Dashboard Sidebar Navbar --- */
.dashboard-layout {
    display: flex;
    min-height: 100vh;
    background-color: var(--color-slate-50);
    width: 100%;
    max-width: 100vw;
    min-width: 0;
    overflow-x: hidden;
}

/* Sidebar */
.sidebar {
    width: 260px;
    flex-shrink: 0;
    background-color: var(--color-slate-900);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
    transition: transform var(--transition-slow);
}

.sidebar-brand {
    padding: var(--space-6) var(--space-6);
    border-bottom: 1px solid rgba(255,255,255,0.07);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    position: relative;
}

.sidebar-close-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    margin-left: auto;
    background: rgba(255, 255, 255, 0.08);
    border: none;
    border-radius: var(--radius-md);
    color: var(--color-slate-400);
    cursor: pointer;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.sidebar-close-btn:hover {
    background: rgba(255, 255, 255, 0.16);
    color: var(--color-white);
}

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    z-index: 95;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.sidebar-overlay.open {
    display: block;
    opacity: 1;
}

.sidebar-logo {
    width: 38px;
    height: 38px;
    background: var(--color-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sidebar-logo svg {
    width: 22px;
    height: 22px;
    fill: white;
}

.sidebar-brand-name {
    font-size: var(--font-size-lg);
    font-weight: 800;
    color: var(--color-white);
    letter-spacing: -0.02em;
}

.sidebar-brand-tagline {
    font-size: var(--font-size-xs);
    color: var(--color-slate-400);
    letter-spacing: 0.02em;
}

.sidebar-nav {
    flex: 1;
    padding: var(--space-6) var(--space-3);
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.sidebar-section-label {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-slate-400);
    padding: var(--space-3) var(--space-3) var(--space-1);
    margin-top: var(--space-2);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: 0.625rem var(--space-3);
    border-radius: var(--radius-md);
    color: var(--color-slate-400);
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: background-color var(--transition-fast), color var(--transition-fast);
    cursor: pointer;
    text-decoration: none;
}

.nav-item:hover {
    background-color: rgba(255,255,255,0.06);
    color: var(--color-white);
}

.nav-item.active {
    background-color: var(--color-primary);
    color: var(--color-white);
}

.nav-item .nav-icon {
    width: 18px;
    height: 18px;
    opacity: 0.8;
    flex-shrink: 0;
}

.nav-item.active .nav-icon { opacity: 1; }

.sidebar-footer {
    padding: var(--space-4) var(--space-3);
    border-top: 1px solid rgba(255,255,255,0.07);
}

/* Main Content Area */
.main-content {
    margin-left: 260px;
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-width: 0;
    max-width: 100%;
    width: calc(100% - 260px);
    overflow-x: hidden;
}

.topbar {
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-slate-200);
    padding: 0 var(--space-6);
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.menu-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    padding: 0;
    border: 1px solid var(--color-slate-200);
    border-radius: var(--radius-md);
    background: var(--color-white);
    color: var(--color-slate-700);
    cursor: pointer;
    flex-shrink: 0;
    transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.menu-toggle:hover {
    background-color: var(--color-slate-100);
    border-color: var(--color-slate-300);
}

.menu-toggle svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
}

.topbar-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-slate-800);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.user-avatar {
    width: 36px;
    height: 36px;
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    font-weight: 700;
    flex-shrink: 0;
}

.user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.user-name {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-slate-800);
    line-height: 1.2;
}

.user-role {
    font-size: var(--font-size-xs);
    color: var(--color-slate-400);
}

.page-content {
    padding: var(--space-8) var(--space-6);
    flex: 1;
    min-width: 0;
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
    overflow-x: hidden;
}

/* --- Dashboard Metric Cards --- */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-5);
    margin-bottom: var(--space-8);
}

.metric-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-slate-100);
    transition: box-shadow var(--transition-base), transform var(--transition-base);
    position: relative;
    overflow: hidden;
}

.metric-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: var(--color-primary);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
}

.metric-card.whatsapp::before { background: var(--color-whatsapp); }
.metric-card.warning::before  { background: var(--color-warning); }
.metric-card.info::before     { background: var(--color-info); }

.metric-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-lg);
    background: var(--color-slate-50);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-4);
}

.metric-icon svg {
    width: 22px;
    height: 22px;
    stroke: var(--color-primary);
}

.metric-card.whatsapp .metric-icon svg { stroke: var(--color-whatsapp); }
.metric-card.warning  .metric-icon svg { stroke: var(--color-warning); }
.metric-card.info     .metric-icon svg { stroke: var(--color-info); }

.metric-label {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-slate-400);
    margin-bottom: var(--space-1);
}

.metric-value {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--color-slate-900);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.metric-sub {
    font-size: var(--font-size-xs);
    color: var(--color-slate-400);
    margin-top: var(--space-1);
}

/* --- Quick Actions --- */
.quick-actions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.quick-action-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-slate-100);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    cursor: pointer;
    transition: box-shadow var(--transition-base), transform var(--transition-base);
    text-decoration: none;
    color: inherit;
}

.quick-action-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
    color: inherit;
}

.quick-action-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.quick-action-icon.teal  { background: #CCFBF1; }
.quick-action-icon.green { background: #DCFCE7; }
.quick-action-icon.blue  { background: #DBEAFE; }
.quick-action-icon.amber { background: #FEF3C7; }

.quick-action-icon svg { width: 22px; height: 22px; }
.quick-action-icon.teal  svg { stroke: #0F766E; }
.quick-action-icon.green svg { stroke: #16A34A; }
.quick-action-icon.blue  svg { stroke: #1D4ED8; }
.quick-action-icon.amber svg { stroke: #D97706; }

.quick-action-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-slate-800);
}

.quick-action-desc {
    font-size: var(--font-size-xs);
    color: var(--color-slate-400);
    margin-top: 2px;
}

.quick-action-badge {
    margin-left: auto;
    background: var(--color-slate-100);
    color: var(--color-slate-400);
    font-size: 0.65rem;
    font-weight: 700;
    padding: 2px 7px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
}

/* --- Section Headers --- */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--space-2);
    margin-bottom: var(--space-5);
    gap: var(--space-3);
}

.section-title {
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--color-slate-900);
    letter-spacing: -0.02em;
    line-height: 1.3;
}

/* --- Guest Layout (Auth Pages) --- */
.guest-layout {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--color-slate-900) 0%, #0D3B38 60%, #0A4A40 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-8) var(--space-4);
    position: relative;
    overflow: hidden;
}

.guest-layout::before {
    content: '';
    position: absolute;
    top: -120px; right: -120px;
    width: 400px; height: 400px;
    border-radius: 50%;
    background: rgba(15, 118, 110, 0.15);
    pointer-events: none;
}

.guest-layout::after {
    content: '';
    position: absolute;
    bottom: -80px; left: -80px;
    width: 280px; height: 280px;
    border-radius: 50%;
    background: rgba(37, 211, 102, 0.07);
    pointer-events: none;
}

.auth-brand {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-8);
    text-align: center;
    flex-direction: column;
    position: relative;
    z-index: 1;
}

.auth-brand-logo {
    width: 56px;
    height: 56px;
    background: var(--color-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(15, 118, 110, 0.4);
}

.auth-brand-logo svg { width: 30px; height: 30px; fill: white; }

.auth-brand-name {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--color-white);
    letter-spacing: -0.03em;
}

.auth-brand-tagline {
    font-size: var(--font-size-sm);
    color: rgba(255,255,255,0.5);
    margin-top: var(--space-1);
}

.auth-card {
    width: 100%;
    max-width: 440px;
    background: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--space-8);
    position: relative;
    z-index: 1;
}

.auth-card-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-slate-900);
    margin-bottom: var(--space-1);
}

.auth-card-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-slate-400);
    margin-bottom: var(--space-6);
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin: var(--space-5) 0;
}

.auth-divider-line {
    flex: 1;
    height: 1px;
    background: var(--color-slate-200);
}

.auth-divider-text {
    font-size: var(--font-size-xs);
    color: var(--color-slate-400);
    white-space: nowrap;
}

.auth-footer {
    text-align: center;
    margin-top: var(--space-5);
    font-size: var(--font-size-sm);
    color: var(--color-slate-500);
}



/* --- Welcome / Landing Page --- */
.landing-hero {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--color-slate-900) 0%, #0D3B38 55%, #0A2E2A 100%);
    display: flex;
    align-items: center;
    padding: var(--space-16) var(--space-4);
    position: relative;
    overflow: hidden;
}

.landing-hero::before {
    content: '';
    position: absolute;
    top: -200px; right: -100px;
    width: 500px; height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(15,118,110,0.2) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    max-width: 640px;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: rgba(37,211,102,0.12);
    color: var(--color-whatsapp);
    border: 1px solid rgba(37,211,102,0.25);
    border-radius: var(--radius-full);
    padding: 0.35rem var(--space-4);
    font-size: var(--font-size-xs);
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    margin-bottom: var(--space-6);
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    color: var(--color-white);
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-5);
}

.hero-title span { color: var(--color-primary-light); }

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: rgba(255,255,255,0.65);
    line-height: 1.6;
    margin-bottom: var(--space-8);
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.landing-nav {
    position: absolute;
    top: 0; left: 0; right: 0;
    padding: var(--space-5) var(--space-8);
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 10;
}

.landing-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    text-decoration: none;
}

.landing-logo-icon {
    width: 36px;
    height: 36px;
    background: var(--color-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.landing-logo-icon svg { width: 20px; height: 20px; fill: white; }

.landing-logo-text {
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--color-white);
    letter-spacing: -0.02em;
}

.landing-nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

/* --- Feature Cards (Landing) --- */
.features-section {
    background: var(--color-white);
    padding: var(--space-16) var(--space-4);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--space-6);
    margin-top: var(--space-10);
}

.feature-card {
    background: var(--color-slate-50);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    border: 1px solid var(--color-slate-100);
    transition: box-shadow var(--transition-base);
}

.feature-card:hover { box-shadow: var(--shadow-md); }

.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg);
    background: #CCFBF1;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-4);
}

.feature-icon svg { width: 24px; height: 24px; stroke: var(--color-primary); }

.feature-title {
    font-size: var(--font-size-base);
    font-weight: 700;
    color: var(--color-slate-900);
    margin-bottom: var(--space-2);
}

.feature-desc {
    font-size: var(--font-size-sm);
    color: var(--color-slate-500);
    line-height: 1.6;
}

/* --- Responsive Mobile --- */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: 280px;
    }

    .sidebar.open { transform: translateX(0); }

    .main-content { margin-left: 0; width: 100%; max-width: 100%; min-width: 0; }

    .menu-toggle { display: flex; }

    .sidebar-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,0.5);
        z-index: 99;
    }

    .sidebar-overlay.open { display: block; }

    .page-content { padding: var(--space-5) var(--space-4); }

    .topbar { padding: 0 var(--space-4); }

    .metrics-grid { grid-template-columns: repeat(2, 1fr); gap: var(--space-3); }

    .metric-value { font-size: var(--font-size-2xl); }

    .quick-actions-grid { grid-template-columns: 1fr; }

    .hero-actions { flex-direction: column; }

    .landing-nav { padding: var(--space-4); }

    .user-info { display: none; }

    .auth-card { padding: var(--space-6); }

    .features-grid { grid-template-columns: 1fr; }
}

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

@media (max-width: 380px) {
    .metrics-grid { grid-template-columns: 1fr; }
}

/* --- Utilities --- */
.text-center   { text-align: center; }
.text-muted    { color: var(--color-slate-400); }
.text-sm       { font-size: var(--font-size-sm); }
.font-semibold { font-weight: 600; }
.font-bold     { font-weight: 700; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.w-full { width: 100%; }

/* --- Spacing Utilities (Padding) --- */
.p-0  { padding: 0 !important; }
.p-1  { padding: var(--space-1) !important; }
.p-2  { padding: var(--space-2) !important; }
.p-3  { padding: var(--space-3) !important; }
.p-4  { padding: var(--space-4) !important; }
.p-5  { padding: var(--space-5) !important; }
.p-6  { padding: var(--space-6) !important; }
.p-8  { padding: var(--space-8) !important; }
.p-10 { padding: var(--space-10) !important; }
.p-12 { padding: var(--space-12) !important; }

.px-0 { padding-left: 0 !important; padding-right: 0 !important; }
.px-1 { padding-left: var(--space-1) !important; padding-right: var(--space-1) !important; }
.px-2 { padding-left: var(--space-2) !important; padding-right: var(--space-2) !important; }
.px-3 { padding-left: var(--space-3) !important; padding-right: var(--space-3) !important; }
.px-4 { padding-left: var(--space-4) !important; padding-right: var(--space-4) !important; }
.px-5 { padding-left: var(--space-5) !important; padding-right: var(--space-5) !important; }
.px-6 { padding-left: var(--space-6) !important; padding-right: var(--space-6) !important; }
.px-8 { padding-left: var(--space-8) !important; padding-right: var(--space-8) !important; }

.py-0 { padding-top: 0 !important; padding-bottom: 0 !important; }
.py-1 { padding-top: var(--space-1) !important; padding-bottom: var(--space-1) !important; }
.py-2 { padding-top: var(--space-2) !important; padding-bottom: var(--space-2) !important; }
.py-3 { padding-top: var(--space-3) !important; padding-bottom: var(--space-3) !important; }
.py-4 { padding-top: var(--space-4) !important; padding-bottom: var(--space-4) !important; }
.py-5 { padding-top: var(--space-5) !important; padding-bottom: var(--space-5) !important; }
.py-6 { padding-top: var(--space-6) !important; padding-bottom: var(--space-6) !important; }
.py-8 { padding-top: var(--space-8) !important; padding-bottom: var(--space-8) !important; }

.pt-0 { padding-top: 0 !important; }
.pt-1 { padding-top: var(--space-1) !important; }
.pt-2 { padding-top: var(--space-2) !important; }
.pt-3 { padding-top: var(--space-3) !important; }
.pt-4 { padding-top: var(--space-4) !important; }
.pt-5 { padding-top: var(--space-5) !important; }
.pt-6 { padding-top: var(--space-6) !important; }
.pt-8 { padding-top: var(--space-8) !important; }

.pb-0 { padding-bottom: 0 !important; }
.pb-1 { padding-bottom: var(--space-1) !important; }
.pb-2 { padding-bottom: var(--space-2) !important; }
.pb-3 { padding-bottom: var(--space-3) !important; }
.pb-4 { padding-bottom: var(--space-4) !important; }
.pb-5 { padding-bottom: var(--space-5) !important; }
.pb-6 { padding-bottom: var(--space-6) !important; }
.pb-8 { padding-bottom: var(--space-8) !important; }

.pl-0 { padding-left: 0 !important; }
.pl-1 { padding-left: var(--space-1) !important; }
.pl-2 { padding-left: var(--space-2) !important; }
.pl-3 { padding-left: var(--space-3) !important; }
.pl-4 { padding-left: var(--space-4) !important; }
.pl-5 { padding-left: var(--space-5) !important; }
.pl-6 { padding-left: var(--space-6) !important; }

.pr-0 { padding-right: 0 !important; }
.pr-1 { padding-right: var(--space-1) !important; }
.pr-2 { padding-right: var(--space-2) !important; }
.pr-3 { padding-right: var(--space-3) !important; }
.pr-4 { padding-right: var(--space-4) !important; }
.pr-5 { padding-right: var(--space-5) !important; }
.pr-6 { padding-right: var(--space-6) !important; }

/* --- Spacing Utilities (Margin) --- */
.m-0  { margin: 0 !important; }
.m-1  { margin: var(--space-1) !important; }
.m-2  { margin: var(--space-2) !important; }
.m-3  { margin: var(--space-3) !important; }
.m-4  { margin: var(--space-4) !important; }
.m-5  { margin: var(--space-5) !important; }
.m-6  { margin: var(--space-6) !important; }
.m-8  { margin: var(--space-8) !important; }

.mx-auto { margin-left: auto !important; margin-right: auto !important; }
.mx-0 { margin-left: 0 !important; margin-right: 0 !important; }
.mx-1 { margin-left: var(--space-1) !important; margin-right: var(--space-1) !important; }
.mx-2 { margin-left: var(--space-2) !important; margin-right: var(--space-2) !important; }
.mx-3 { margin-left: var(--space-3) !important; margin-right: var(--space-3) !important; }
.mx-4 { margin-left: var(--space-4) !important; margin-right: var(--space-4) !important; }
.mx-5 { margin-left: var(--space-5) !important; margin-right: var(--space-5) !important; }
.mx-6 { margin-left: var(--space-6) !important; margin-right: var(--space-6) !important; }
.mx-8 { margin-left: var(--space-8) !important; margin-right: var(--space-8) !important; }

.my-0 { margin-top: 0 !important; margin-bottom: 0 !important; }
.my-1 { margin-top: var(--space-1) !important; margin-bottom: var(--space-1) !important; }
.my-2 { margin-top: var(--space-2) !important; margin-bottom: var(--space-2) !important; }
.my-3 { margin-top: var(--space-3) !important; margin-bottom: var(--space-3) !important; }
.my-4 { margin-top: var(--space-4) !important; margin-bottom: var(--space-4) !important; }
.my-5 { margin-top: var(--space-5) !important; margin-bottom: var(--space-5) !important; }
.my-6 { margin-top: var(--space-6) !important; margin-bottom: var(--space-6) !important; }
.my-8 { margin-top: var(--space-8) !important; margin-bottom: var(--space-8) !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: var(--space-1) !important; }
.mt-2 { margin-top: var(--space-2) !important; }
.mt-3 { margin-top: var(--space-3) !important; }
.mt-4 { margin-top: var(--space-4) !important; }
.mt-5 { margin-top: var(--space-5) !important; }
.mt-6 { margin-top: var(--space-6) !important; }
.mt-8 { margin-top: var(--space-8) !important; }
.mt-10 { margin-top: var(--space-10) !important; }
.mt-12 { margin-top: var(--space-12) !important; }

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: var(--space-1) !important; }
.mb-2 { margin-bottom: var(--space-2) !important; }
.mb-3 { margin-bottom: var(--space-3) !important; }
.mb-4 { margin-bottom: var(--space-4) !important; }
.mb-5 { margin-bottom: var(--space-5) !important; }
.mb-6 { margin-bottom: var(--space-6) !important; }
.mb-8 { margin-bottom: var(--space-8) !important; }
.mb-10 { margin-bottom: var(--space-10) !important; }
.mb-12 { margin-bottom: var(--space-12) !important; }

.ml-auto { margin-left: auto !important; }
.mr-auto { margin-right: auto !important; }
.ml-1 { margin-left: var(--space-1) !important; }
.ml-2 { margin-left: var(--space-2) !important; }
.ml-3 { margin-left: var(--space-3) !important; }
.ml-4 { margin-left: var(--space-4) !important; }
.mr-1 { margin-right: var(--space-1) !important; }
.mr-2 { margin-right: var(--space-2) !important; }
.mr-3 { margin-right: var(--space-3) !important; }
.mr-4 { margin-right: var(--space-4) !important; }

/* --- Gap Utilities --- */
.gap-1 { gap: var(--space-1) !important; }
.gap-2 { gap: var(--space-2) !important; }
.gap-3 { gap: var(--space-3) !important; }
.gap-4 { gap: var(--space-4) !important; }
.gap-5 { gap: var(--space-5) !important; }
.gap-6 { gap: var(--space-6) !important; }
.gap-8 { gap: var(--space-8) !important; }

/* --- Merchant Mobile Bottom Navigation --- */
.merchant-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--color-slate-200);
    align-items: center;
    justify-content: space-around;
    z-index: 85;
    padding: 0 var(--space-2);
    padding-bottom: env(safe-area-inset-bottom, 0);
    box-shadow: 0 -2px 12px rgba(15, 23, 42, 0.06);
}

.merchant-bottom-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    color: var(--color-slate-500);
    text-decoration: none;
    font-size: 0.68rem;
    font-weight: 600;
    flex: 1;
    padding: 6px 2px;
    border-radius: var(--radius-md);
    transition: color var(--transition-fast);
    background: none;
    border: none;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
}

.merchant-bottom-item:hover,
.merchant-bottom-item.active {
    color: var(--color-primary);
    font-weight: 700;
}

.merchant-bottom-item svg {
    width: 20px;
    height: 20px;
    stroke-width: 2;
}

.merchant-bottom-item.active svg {
    stroke-width: 2.3;
}

.flash-msg-container {
    padding: 0 var(--space-6);
}

/* ============================================================
   RESPONSIVE DESIGN SYSTEM & MOBILE BREAKPOINTS
   ============================================================ */

/* --- Prevent Horizontal Overflow on Small Devices --- */
html, body {
    overflow-x: hidden;
    max-width: 100vw;
}

/* --- Responsive Table Base --- */
.table-wrap {
    width: 100% !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    border-radius: var(--radius-lg);
}

/* --- Tablets and Below (<= 1024px) --- */
@media (max-width: 1024px) {
    .metrics-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
        gap: var(--space-4);
    }
    .analytics-grid {
        grid-template-columns: 1fr;
    }
}

/* --- Mobile Breakpoint: Tablets & Smartphones (<= 768px) --- */
@media (max-width: 768px) {
    /* Layout & Off-canvas Sidebar */
    .dashboard-layout {
        position: relative;
        overflow-x: hidden;
    }

    .sidebar {
        transform: translateX(-100%);
        box-shadow: none;
        width: 270px;
        z-index: 100;
    }

    .sidebar.open {
        transform: translateX(0);
        box-shadow: var(--shadow-xl);
    }

    .sidebar-close-btn {
        display: flex;
    }

    .menu-toggle {
        display: inline-flex;
    }

    .merchant-bottom-nav {
        display: flex;
    }

    .main-content {
        margin-left: 0 !important;
        width: 100% !important;
        min-width: 0 !important;
        padding-bottom: 74px !important; /* clearance for bottom nav bar */
    }

    .topbar {
        padding: 0 var(--space-4);
        height: 58px;
    }

    .topbar-left {
        gap: var(--space-2);
        min-width: 0;
        flex: 1;
    }

    .topbar-title {
        font-size: var(--font-size-sm);
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
        max-width: 180px;
    }

    .topbar-right .user-info .user-role {
        display: none;
    }

    .page-content {
        padding: var(--space-4) var(--space-3) !important;
    }

    .flash-msg-container {
        padding: 0 var(--space-3) !important;
    }

    /* Prevent iOS Safari input auto-zoom (< 16px causes zoom) */
    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="number"],
    input[type="tel"],
    input[type="url"],
    input[type="search"],
    select,
    textarea {
        font-size: 16px !important;
    }

    /* Touch-friendly interactive targets */
    .btn, button, input[type="submit"] {
        min-height: 42px;
        white-space: normal !important;
        text-align: center;
        line-height: 1.35;
    }

    .btn-sm {
        min-height: 34px;
        padding: 0.4rem 0.75rem;
    }

    /* Metrics Grid 2-Column on Mobile */
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: var(--space-3) !important;
        margin-bottom: var(--space-5) !important;
    }

    .metric-card {
        padding: var(--space-4) !important;
        border-radius: var(--radius-lg) !important;
    }

    .metric-card .metric-icon {
        width: 38px !important;
        height: 38px !important;
        margin-bottom: var(--space-2) !important;
    }

    .metric-card .metric-icon svg {
        width: 18px !important;
        height: 18px !important;
    }

    .metric-card .metric-label {
        font-size: var(--font-size-xs) !important;
    }

    .metric-card .metric-value {
        font-size: 1.25rem !important;
        line-height: 1.2 !important;
    }

    .metric-card .metric-sub {
        font-size: 0.68rem !important;
    }

    /* Quick Actions 2-Column */
    .quick-actions-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: var(--space-3) !important;
    }

    .quick-action-card {
        padding: var(--space-3) !important;
        border-radius: var(--radius-lg) !important;
    }

    .quick-action-icon {
        width: 36px !important;
        height: 36px !important;
        margin-bottom: var(--space-2) !important;
    }

    .quick-action-icon svg {
        width: 18px !important;
        height: 18px !important;
    }

    .quick-action-title {
        font-size: var(--font-size-xs) !important;
    }

    .quick-action-desc {
        font-size: 0.7rem !important;
    }

    /* Responsive Tables */
    table.table th,
    .table th {
        padding: 0.7rem 0.85rem !important;
        font-size: 0.7rem !important;
    }

    table.table td,
    .table td {
        padding: 0.85rem 0.85rem !important;
        font-size: var(--font-size-xs) !important;
    }

    /* Two-column form grids collapse */
    .product-form-grid,
    .store-form-grid,
    .grid-2col-responsive,
    .bundle-form-grid,
    .import-grid,
    .domain-grid,
    .coupon-form-row,
    .coupon-limits-row,
    .order-detail-grid,
    .order-status-grid,
    .theme-selection-grid,
    .restock-stats-grid,
    #qrControlsGrid {
        grid-template-columns: 1fr !important;
    }

    .order-left-col,
    .order-right-col {
        min-width: 0 !important;
        max-width: 100% !important;
        width: 100% !important;
    }

    .order-summary-wrapper {
        justify-content: stretch !important;
        width: 100% !important;
    }

    .order-summary-box {
        width: 100% !important;
        max-width: 100% !important;
    }

    /* Table wrappers smooth touch scrolling */
    .table-wrap,
    .table-responsive,
    div[style*="overflow-x:auto"],
    div[style*="overflow-x: auto"] {
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important;
        scrollbar-width: thin;
        width: 100% !important;
        max-width: 100% !important;
        min-width: 0 !important;
        box-sizing: border-box !important;
    }

    /* Floating action footers clear the mobile bottom nav */
    .sticky-action-bar,
    .store-theme-actions {
        bottom: 72px !important;
    }

    /* Hide redundant desktop floating cart button on mobile */
    #floatingCartBtn {
        display: none !important;
    }

    /* Print flyer card fluid width */
    .flyer-card {
        max-width: 380px !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
}

/* --- Smartphone Breakpoint (<= 640px) --- */
@media (max-width: 640px) {
    /* Responsive Spacing Reductions */
    .p-6, .p-8 {
        padding: var(--space-4) !important;
    }

    .p-5 {
        padding: var(--space-3) var(--space-4) !important;
    }

    .card-body {
        padding: var(--space-4) !important;
    }

    .card {
        border-radius: var(--radius-lg) !important;
    }

    /* Typography Scaling */
    h1, .hero-title {
        font-size: 1.4rem !important;
        line-height: 1.25 !important;
    }

    h2, .section-title {
        font-size: 1.15rem !important;
    }

    /* Section Headers Stack */
    .section-header {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: var(--space-3) !important;
    }

    .section-header > a.btn,
    .section-header > button.btn,
    .section-header > div > a.btn,
    .section-header > div > button.btn {
        width: 100% !important;
        justify-content: center !important;
        text-align: center !important;
    }

    .section-header > div {
        display: flex !important;
        flex-wrap: wrap !important;
        gap: var(--space-2) !important;
        width: 100% !important;
    }

    /* Filter & Search Bars */
    .filter-bar-form,
    form[action*="orders"],
    form[action*="products"],
    form[action*="customers"] {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: var(--space-3) !important;
    }

    .filter-bar-form .form-group,
    .filter-bar-form > div,
    .filter-select-box,
    .filter-search-box,
    .filter-actions-box {
        width: 100% !important;
        min-width: 0 !important;
    }

    .filter-actions-box {
        display: flex !important;
        gap: var(--space-2) !important;
    }
    .filter-actions-box .btn {
        flex: 1 !important;
        text-align: center !important;
        justify-content: center !important;
    }

    /* Responsive Status Tabs Scrolling */
    .order-status-tabs-row {
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important;
        flex-wrap: nowrap !important;
        padding-bottom: var(--space-2) !important;
        scrollbar-width: none !important;
    }
    .order-status-tabs-row::-webkit-scrollbar {
        display: none !important;
    }

    /* S20: Cart Drawer full width on smartphones */
    #cartDrawer {
        max-width: 100vw !important;
        width: 100% !important;
    }

    /* Auth Page Card */
    .auth-card {
        padding: var(--space-5) var(--space-4) !important;
        border-radius: var(--radius-xl) !important;
    }

    .guest-layout {
        padding: var(--space-6) var(--space-3) !important;
    }

    /* Order Details Summary Box */
    .order-summary-box {
        width: 100% !important;
        max-width: 100% !important;
    }

    /* Customer Profile Metrics */
    .customer-metrics-row {
        width: 100% !important;
        display: grid !important;
        grid-template-columns: repeat(3, 1fr) !important;
        gap: var(--space-3) !important;
        border-top: 1px solid var(--color-slate-100);
        padding-top: var(--space-4);
    }
    .customer-metrics-row > div {
        border-left: none !important;
        padding-left: 0 !important;
    }
    .customer-metrics-row > div > div:last-child {
        font-size: 1.1rem !important;
    }

    /* Sales Assistant Cards */
    .assistant-cards-grid {
        grid-template-columns: 1fr !important;
    }

    .assistant-card {
        padding: var(--space-4) !important;
    }

    /* Modals & Dialogs */
    .campaign-dialog,
    .modal-dialog {
        width: 95% !important;
        margin: var(--space-3) auto !important;
    }

    /* Form Section Adjustments */
    .form-section-header {
        padding: var(--space-3) var(--space-4) !important;
    }
    .form-section-body {
        padding: var(--space-4) !important;
    }

    /* Landing Page Mobile */
    .landing-nav {
        padding: var(--space-4) var(--space-4) !important;
    }
    .landing-hero {
        padding: 5rem var(--space-4) var(--space-10) !important;
        min-height: auto !important;
    }
    .hero-actions {
        flex-direction: column !important;
    }
    .hero-actions .btn {
        width: 100% !important;
        justify-content: center !important;
    }
    .features-section {
        padding: var(--space-10) var(--space-4) !important;
    }
    .features-grid {
        grid-template-columns: 1fr !important;
        gap: var(--space-4) !important;
        margin-top: var(--space-6) !important;
    }

    .form-action-bar {
        display: flex;
        align-items: center;
        gap: var(--space-3);
    }
}

/* --- Small Mobile Breakpoint (<= 480px) --- */
@media (max-width: 480px) {
    .form-action-bar {
        flex-direction: column-reverse !important;
        align-items: stretch !important;
        gap: var(--space-2) !important;
    }
    .form-action-bar .btn,
    .form-action-bar a.btn,
    .form-action-bar button.btn {
        width: 100% !important;
        text-align: center !important;
        justify-content: center !important;
    }

    .inventory-grid {
        grid-template-columns: 1fr !important;
    }

    .pricing-grid {
        grid-template-columns: 1fr !important;
    }

    .image-preview-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }

    .dashboard-checklist-item {
        flex-wrap: wrap;
        gap: var(--space-2) !important;
    }

    .dashboard-checklist-item > a,
    .dashboard-checklist-item > button {
        width: 100%;
        text-align: center;
        justify-content: center;
        margin-top: var(--space-1);
    }
}

/* --- Ultra-Compact Smartphone Breakpoint (<= 380px) --- */
@media (max-width: 380px) {
    .page-content {
        padding: var(--space-3) var(--space-2) !important;
    }

    .topbar {
        padding: 0 var(--space-3);
    }

    .metrics-grid {
        grid-template-columns: 1fr !important;
    }

    .quick-actions-grid {
        grid-template-columns: 1fr !important;
    }

    .topbar-title {
        max-width: 130px;
    }

    .p-6, .p-8 {
        padding: var(--space-3) !important;
    }

    .merchant-bottom-item span {
        font-size: 0.6rem;
    }

    .merchant-bottom-item svg {
        width: 18px;
        height: 18px;
    }
}

/* ============================================================
   SELLER DASHBOARD DARK MODE (Global CSS)
   ============================================================ */
html.dark .dashboard-layout,
html.dark .main-content {
    background: #090E17 !important;
}

html.dark .topbar {
    background: #0F172A !important;
    border-bottom: 1px solid #1E293B !important;
    color: #F8FAFC !important;
}

html.dark .topbar-title {
    color: #F8FAFC !important;
}

html.dark .card,
html.dark .panel,
html.dark .box {
    background: #0F172A !important;
    border: 1px solid #1E293B !important;
    box-shadow: 0 4px 16px rgba(0,0,0,0.3) !important;
    color: #E2E8F0 !important;
}

html.dark .card-header {
    background: transparent !important;
    border-bottom: 1px solid #1E293B !important;
    color: #F8FAFC !important;
}

html.dark .card-footer {
    border-top: 1px solid #1E293B !important;
    background: transparent !important;
}

html.dark .metric-card,
html.dark .stat-card,
html.dark .dashboard-stat-card,
html.dark .quick-action-card,
html.dark .dashboard-checklist-item,
html.dark .activity-card {
    background: #0F172A !important;
    border: 1px solid #1E293B !important;
    color: #E2E8F0 !important;
}

html.dark .metric-value,
html.dark .stat-value,
html.dark .dashboard-checklist-title {
    color: #FFFFFF !important;
}

html.dark .metric-label,
html.dark .stat-label,
html.dark .dashboard-checklist-desc {
    color: #94A3B8 !important;
}

html.dark .table-responsive,
html.dark .table-wrap {
    background: #0F172A !important;
    border-color: #1E293B !important;
}

html.dark table {
    color: #E2E8F0 !important;
}

html.dark table th {
    background: #131D31 !important;
    color: #94A3B8 !important;
    border-bottom: 1px solid #1E293B !important;
}

html.dark table td {
    border-bottom: 1px solid #1E293B !important;
    color: #E2E8F0 !important;
}

html.dark table tr:hover td {
    background: rgba(255,255,255,0.02) !important;
}

html.dark .form-control,
html.dark .form-select,
html.dark input[type="text"],
html.dark input[type="email"],
html.dark input[type="password"],
html.dark input[type="number"],
html.dark input[type="tel"],
html.dark input[type="url"],
html.dark input[type="search"],
html.dark textarea,
html.dark select {
    background-color: #0B1120 !important;
    border: 1px solid #334155 !important;
    color: #F8FAFC !important;
}

html.dark .form-control:focus,
html.dark .form-select:focus,
html.dark input:focus,
html.dark select:focus,
html.dark textarea:focus {
    border-color: #10B981 !important;
    box-shadow: 0 0 0 3px rgba(16,185,129,0.2) !important;
}

html.dark .form-control::placeholder,
html.dark input::placeholder,
html.dark textarea::placeholder {
    color: #475569 !important;
}

html.dark .form-label {
    color: #CBD5E1 !important;
}

html.dark .form-hint,
html.dark .text-muted {
    color: #94A3B8 !important;
}

html.dark .user-name {
    color: #F8FAFC !important;
}

html.dark h1,
html.dark h2,
html.dark h3,
html.dark h4,
html.dark h5,
html.dark h6 {
    color: #F8FAFC !important;
}

html.dark .tab-nav,
html.dark .tabs {
    border-bottom-color: #1E293B !important;
}

html.dark .tab-btn {
    color: #94A3B8 !important;
}

html.dark .tab-btn.active {
    color: #10B981 !important;
    border-bottom-color: #10B981 !important;
}

html.dark .modal-content,
html.dark .modal-dialog {
    background: #0F172A !important;
    border: 1px solid #1E293B !important;
    color: #E2E8F0 !important;
}

html.dark .modal-header {
    border-bottom: 1px solid #1E293B !important;
}

html.dark .modal-footer {
    border-top: 1px solid #1E293B !important;
}

html.dark .dropdown-menu {
    background: #0F172A !important;
    border: 1px solid #1E293B !important;
    color: #E2E8F0 !important;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5) !important;
}

html.dark .dropdown-item {
    color: #CBD5E1 !important;
}

html.dark .dropdown-item:hover {
    background: #1E293B !important;
    color: #FFFFFF !important;
}

html.dark .sidebar {
    background: #0B1120 !important;
    border-right: 1px solid #1E293B !important;
}

html.dark .nav-item {
    color: #94A3B8 !important;
}

html.dark .nav-item:hover {
    background: rgba(255,255,255,0.04) !important;
    color: #F8FAFC !important;
}

html.dark .nav-item.active {
    background: rgba(16,185,129,0.15) !important;
    color: #34D399 !important;
}

/* ─── Page Load Progress Bar ──────────────────────────────────────────── */
#nprogress-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    z-index: 99999;
    pointer-events: none;
    background: linear-gradient(90deg, #10b981, #34d399, #6ee7b7, #10b981);
    background-size: 300% 100%;
    transform: scaleX(0);
    transform-origin: left;
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    border-radius: 0 2px 2px 0;
    box-shadow: 0 0 10px rgba(16,185,129,0.7), 0 0 20px rgba(16,185,129,0.4);
    animation: none;
}
#nprogress-bar.loading {
    opacity: 1;
    animation: progress-shimmer 1.2s linear infinite;
}
#nprogress-bar.done {
    transform: scaleX(1);
    opacity: 0;
    transition: transform 0.2s ease, opacity 0.4s ease 0.15s;
}
@keyframes progress-shimmer {
    0%   { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}
#nprogress-bar::after {
    content: '';
    position: absolute;
    right: 0;
    top: -3px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #34d399;
    box-shadow: 0 0 8px 2px rgba(52,211,153,0.8);
    opacity: 0;
    transition: opacity 0.2s;
}
#nprogress-bar.loading::after {
    opacity: 1;
}

/* --- Dark / Light Mode Toggle Button --- */
.dark-mode-toggle {
    background: transparent !important;
    border: none !important;
    outline: none !important;
    box-shadow: none !important;
    padding: 4px !important;
    margin: 0 !important;
    cursor: pointer !important;
    font-size: 1.15rem !important;
    line-height: 1 !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    border-radius: 50% !important;
    -webkit-appearance: none !important;
    appearance: none !important;
    transition: transform 0.2s ease, opacity 0.2s ease !important;
}

.dark-mode-toggle:hover {
    transform: scale(1.15);
    opacity: 0.85;
}

.dark-mode-toggle:active {
    transform: scale(0.92);
}