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

:root {
    --bg-main: #0b0b12;
    --bg-gradient: radial-gradient(circle at 50% 50%, #171726, #07070b);
    --glass-bg: rgba(20, 20, 35, 0.45);
    --glass-border: rgba(255, 255, 255, 0.07);
    --glass-highlight: rgba(255, 255, 255, 0.12);
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --primary: #6366f1;
    --primary-glow: rgba(99, 102, 241, 0.35);
    --success: #10b981;
    --success-glow: rgba(16, 185, 129, 0.2);
    --danger: #f43f5e;
    --danger-glow: rgba(244, 63, 94, 0.25);
    --warning: #f59e0b;
    --warning-glow: rgba(245, 158, 11, 0.2);
    --sidebar-width: 260px;
    --transition-speed: 0.3s;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background: var(--bg-main);
    background-image: var(--bg-gradient);
    min-height: 100vh;
    color: var(--text-primary);
    overflow-x: hidden;
}

/* Glassmorphism utility */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.glass-interactive:hover {
    border-color: var(--glass-highlight);
    transform: translateY(-3px);
    box-shadow: 0 12px 40px 0 rgba(99, 102, 241, 0.15);
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Sidebar */
aside.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 100;
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border-right: 1px solid var(--glass-border);
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 3rem;
}

.sidebar-logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), #a855f7);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px var(--primary-glow);
}

.sidebar-logo-icon svg {
    width: 22px;
    height: 22px;
    color: #fff;
}

.sidebar-brand-text {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    background: linear-gradient(135deg, #fff, #a5b4fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex-grow: 1;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.85rem 1.25rem;
    border-radius: 12px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    transition: all var(--transition-speed);
}

.nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
    color: #fff;
    background: linear-gradient(90deg, rgba(99, 102, 241, 0.2) 0%, rgba(99, 102, 241, 0.02) 100%);
    border-left: 3px solid var(--primary);
    box-shadow: inset 5px 0 15px -5px var(--primary-glow);
}

.nav-link svg {
    width: 20px;
    height: 20px;
}

.sidebar-footer {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
    border-top: 1px solid var(--glass-border);
    padding-top: 1.5rem;
}

/* Main Content Area */
main.main-content {
    margin-left: var(--sidebar-width);
    flex-grow: 1;
    padding: 2.5rem;
    min-height: 100vh;
}

/* Header & Alerts */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
}

.page-title h1 {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    background: linear-gradient(to right, #fff, #9ca3af);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.page-title p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.alert {
    padding: 1rem 1.5rem;
    border-radius: 12px;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideInDown 0.3s ease-out;
}

.alert-success {
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #34d399;
}

.alert-danger {
    background: rgba(244, 63, 94, 0.15);
    border: 1px solid rgba(244, 63, 94, 0.3);
    color: #fb7185;
}

/* Dashboard Cards Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
}

.stat-card-glow {
    position: absolute;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    filter: blur(50px);
    opacity: 0.15;
    top: -50px;
    right: -50px;
    z-index: 0;
}

.stat-card-glow.primary { background: var(--primary); }
.stat-card-glow.success { background: var(--success); }
.stat-card-glow.danger { background: var(--danger); }
.stat-card-glow.warning { background: var(--warning); }

.stat-card-content {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.stat-info h3 {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

.stat-info p.stat-value {
    font-size: 2.1rem;
    font-weight: 700;
    margin-top: 0.5rem;
    color: #fff;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-card.primary .stat-icon { background: rgba(99, 102, 241, 0.15); color: var(--primary); }
.stat-card.success .stat-icon { background: rgba(16, 185, 129, 0.15); color: var(--success); }
.stat-card.danger .stat-icon { background: rgba(244, 63, 94, 0.15); color: var(--danger); }
.stat-card.warning .stat-icon { background: rgba(245, 158, 11, 0.15); color: var(--warning); }

.stat-icon svg {
    width: 24px;
    height: 24px;
}

/* Dashboard Visual Area */
.dashboard-visuals {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.visual-card {
    padding: 1.75rem;
}

.visual-card-title {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.25rem;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--transition-speed);
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
    background: #4f46e5;
    box-shadow: 0 6px 20px var(--primary-glow);
}

.btn-success {
    background: var(--success);
    color: #fff;
}

.btn-success:hover {
    background: #059669;
}

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

.btn-danger:hover {
    background: #e11d48;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    border-color: var(--glass-highlight);
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    border-radius: 8px;
}

/* Forms & Inputs */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 10px;
    background: rgba(10, 10, 15, 0.6);
    border: 1px solid var(--glass-border);
    color: #fff;
    font-family: inherit;
    font-size: 0.95rem;
    transition: all var(--transition-speed);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 10px rgba(99, 102, 241, 0.2);
}

select.form-control option {
    background: #11111a;
    color: #fff;
}

.search-filter-bar {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.search-box {
    flex-grow: 1;
    min-width: 250px;
    position: relative;
}

.search-box svg {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    width: 18px;
    height: 18px;
}

.search-box input {
    padding-left: 2.75rem;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    width: 100%;
}

table.table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

table.table th {
    padding: 1rem 1.25rem;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--glass-border);
}

table.table td {
    padding: 1rem 1.25rem;
    font-size: 0.95rem;
    border-bottom: 1px solid var(--glass-border);
    color: var(--text-primary);
    vertical-align: middle;
}

table.table tbody tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.6rem;
    border-radius: 6px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success { background: rgba(16, 185, 129, 0.15); color: #34d399; }
.badge-danger { background: rgba(244, 63, 94, 0.15); color: #fb7185; }
.badge-warning { background: rgba(245, 158, 11, 0.15); color: #fbbf24; }
.badge-secondary { background: rgba(255, 255, 255, 0.08); color: var(--text-secondary); }

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
}

.modal-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

.modal-container {
    width: 100%;
    max-width: 550px;
    padding: 2rem;
    transform: scale(0.9);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.open .modal-container {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.modal-header h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #fff;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.2s;
}

.modal-close:hover {
    color: #fff;
}

.modal-close svg {
    width: 24px;
    height: 24px;
}

/* Custom Grid List for Items */
.items-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.item-card {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 220px;
}

.item-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.5rem;
}

.item-sku {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
}

.item-name {
    font-size: 1.15rem;
    font-weight: 600;
    color: #fff;
    margin-top: 0.25rem;
}

.item-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.item-stock-status {
    margin-top: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid var(--glass-border);
    padding-top: 1rem;
}

.item-stock-number {
    font-size: 1.3rem;
    font-weight: 700;
    color: #fff;
}

.item-stock-number span {
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-left: 0.25rem;
}

.item-prices {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
    background: rgba(0, 0, 0, 0.15);
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
}

.item-card-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
    margin-top: 1.25rem;
}

/* Animations */
@keyframes slideInDown {
    from {
        transform: translateY(-20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* Light Theme Overrides */
body.light-theme {
    --bg-main: #f5f6fa;
    --bg-gradient: radial-gradient(circle at 50% 50%, #ffffff, #eef1f6);
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(0, 0, 0, 0.08);
    --glass-highlight: rgba(0, 0, 0, 0.12);
    --text-primary: #1f2937;
    --text-secondary: #4b5563;
    --text-muted: #9ca3af;
    --primary: #4f46e5;
    --primary-glow: rgba(79, 70, 229, 0.15);
    --success-glow: rgba(16, 185, 129, 0.1);
    --danger-glow: rgba(244, 63, 94, 0.1);
    --warning-glow: rgba(245, 158, 11, 0.1);
}

body.light-theme .page-title h1 {
    background: linear-gradient(to right, #111827, #4b5563);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

body.light-theme .sidebar-brand-text {
    background: linear-gradient(135deg, #111827, #4f46e5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

body.light-theme select.form-control option {
    background: #ffffff;
    color: #111827;
}

body.light-theme .form-control {
    background: rgba(255, 255, 255, 0.95);
    color: #111827;
    border-color: rgba(0, 0, 0, 0.15);
}

body.light-theme .form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 10px rgba(79, 70, 229, 0.15);
}

body.light-theme .item-name, 
body.light-theme .visual-card-title, 
body.light-theme .modal-header h3, 
body.light-theme .stat-info p.stat-value, 
body.light-theme .item-stock-number, 
body.light-theme .item-prices strong {
    color: #111827;
}

body.light-theme .item-prices {
    background: rgba(0, 0, 0, 0.04);
}

body.light-theme .nav-link.active {
    color: var(--primary);
    background: linear-gradient(90deg, rgba(79, 70, 229, 0.08) 0%, rgba(79, 70, 229, 0.01) 100%);
    box-shadow: inset 5px 0 15px -5px var(--primary-glow);
}

body.light-theme .nav-link:hover {
    color: #111827;
    background: rgba(0, 0, 0, 0.03);
}

body.light-theme table.table tbody tr:hover td {
    background: rgba(0, 0, 0, 0.015);
}

body.light-theme .modal-overlay {
    background: rgba(0, 0, 0, 0.45);
}

/* Sidebar Dropdown Menu Styles */
.sidebar-dropdown {
    display: flex;
    flex-direction: column;
    width: 100%;
}

.dropdown-toggle {
    width: 100%;
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
    justify-content: space-between !important;
}

.dropdown-toggle .dropdown-arrow {
    transition: transform var(--transition-speed) ease;
}

.sidebar-dropdown.open .dropdown-toggle .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding-left: 1.25rem;
    border-left: 1px dashed var(--glass-border);
    margin-left: 1.25rem;
}

.sidebar-dropdown.open .dropdown-menu {
    max-height: 350px; /* large enough to display all 5 items */
}

.dropdown-menu .nav-link {
    font-size: 0.9rem;
    padding: 0.65rem 1rem;
    gap: 0.75rem;
    border-radius: 8px;
}

.dropdown-menu .nav-link.active {
    border-left: none;
    background: rgba(99, 102, 241, 0.15);
    color: #fff;
    box-shadow: none;
}

body.light-theme .dropdown-menu .nav-link.active {
    background: rgba(99, 102, 241, 0.08);
    color: var(--primary);
}

body.light-theme .dropdown-menu {
    border-left: 1px dashed rgba(0, 0, 0, 0.08);
}

.sidebar-dropdown.active > .dropdown-toggle {
    color: #fff;
    background: rgba(255, 255, 255, 0.03);
}

body.light-theme .sidebar-dropdown.active > .dropdown-toggle {
    color: #111827;
    background: rgba(0, 0, 0, 0.02);
}

/* --- THEME VARIATIONS --- */
/* 1. Theme Cyberpunk */
body.theme-cyberpunk {
    --bg-main: #030008;
    --bg-gradient: linear-gradient(135deg, #090011 0%, #030008 100%);
    --glass-bg: rgba(13, 2, 25, 0.85);
    --glass-border: rgba(255, 0, 127, 0.25);
    --glass-highlight: rgba(0, 240, 255, 0.35);
    --primary: #ff007f; /* Neon Hot Pink */
    --primary-glow: rgba(255, 0, 127, 0.5);
    --success: #39ff14; /* Neon Green */
    --success-glow: rgba(57, 255, 20, 0.4);
    --danger: #ff3131; /* Neon Red */
    --danger-glow: rgba(255, 49, 49, 0.4);
    --warning: #ffea00; /* Neon Yellow */
    --warning-glow: rgba(255, 234, 0, 0.3);
}

body.theme-cyberpunk.light-theme {
    /* Cyberpunk light theme variants */
    --bg-main: #faf5ff;
    --bg-gradient: radial-gradient(circle at 50% 50%, #ffffff, #f3e8ff);
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(255, 0, 127, 0.2);
    --glass-highlight: rgba(99, 102, 241, 0.25);
    --primary: #db0072;
    --primary-glow: rgba(219, 0, 114, 0.15);
}

body.theme-cyberpunk .glass {
    box-shadow: 0 0 12px rgba(255, 0, 127, 0.15);
    border-radius: 4px; /* Sharp futuristic edges */
}
body.theme-cyberpunk .sidebar-logo-icon,
body.theme-cyberpunk .user-avatar,
body.theme-cyberpunk .btn,
body.theme-cyberpunk .form-control,
body.theme-cyberpunk .nav-link,
body.theme-cyberpunk .dropdown-menu,
body.theme-cyberpunk .stat-card,
body.theme-cyberpunk .badge,
body.theme-cyberpunk .item-prices,
body.theme-cyberpunk .user-avatar {
    border-radius: 4px !important;
}

/* 2. Theme Midnight Royal */
body.theme-royal {
    --bg-main: #0a0e1a;
    --bg-gradient: linear-gradient(180deg, #0f172a 0%, #020617 100%);
    --glass-bg: rgba(15, 23, 42, 0.85);
    --glass-border: rgba(212, 175, 55, 0.25); /* Gold borders */
    --glass-highlight: rgba(212, 175, 55, 0.4);
    --primary: #d4af37; /* Royal Gold */
    --primary-glow: rgba(212, 175, 55, 0.35);
}

body.theme-royal.light-theme {
    /* Royal light theme variants */
    --bg-main: #fafaf6;
    --bg-gradient: radial-gradient(circle at 50% 50%, #ffffff, #f5f5ee);
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(212, 175, 55, 0.2);
    --glass-highlight: rgba(212, 175, 55, 0.3);
    --primary: #b8860b;
    --primary-glow: rgba(184, 134, 11, 0.15);
}

body.theme-royal .sidebar-logo-icon {
    background: linear-gradient(135deg, var(--primary), #b8860b);
}

/* 3. Theme Emerald Forest */
body.theme-emerald {
    --bg-main: #022c22;
    --bg-gradient: radial-gradient(circle at 50% 50%, #064e3b, #022c22);
    --glass-bg: rgba(6, 78, 59, 0.7);
    --glass-border: rgba(52, 211, 153, 0.2);
    --glass-highlight: rgba(52, 211, 153, 0.35);
    --primary: #34d399; /* Emerald Green */
    --primary-glow: rgba(52, 211, 153, 0.35);
}

body.theme-emerald.light-theme {
    /* Emerald light theme variants */
    --bg-main: #f0fdf4;
    --bg-gradient: radial-gradient(circle at 50% 50%, #ffffff, #dcfce7);
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(52, 211, 153, 0.2);
    --glass-highlight: rgba(52, 211, 153, 0.3);
    --primary: #059669;
    --primary-glow: rgba(5, 150, 105, 0.15);
}

body.theme-emerald .sidebar-logo-icon {
    background: linear-gradient(135deg, var(--primary), #059669);
}

/* Pagination Styles */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.25rem;
    margin-top: 2rem;
    list-style: none;
    padding: 0;
    flex-wrap: wrap;
}

.pagination li {
    display: inline;
}

.pagination li a, .pagination li span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 0.5rem;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-speed);
    backdrop-filter: blur(8px);
}

.pagination li a:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    border-color: var(--glass-highlight);
}

.pagination li.active span {
    background: var(--primary) !important;
    color: #fff !important;
    border-color: var(--primary) !important;
    box-shadow: 0 0 10px var(--primary-glow);
}

.pagination li.disabled span {
    opacity: 0.35;
    cursor: not-allowed;
}

.pagination li.disabled a {
    pointer-events: none;
}

/* Page description/info below tables */
.pagination-info {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 1rem;
    text-align: center;
}