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

/* CUSTOM CSS RESET & VARIABLES */
:root {
    --bg-primary: #0b0f19;
    --bg-secondary: #131b2e;
    --bg-card: rgba(20, 30, 54, 0.65);
    --border-card: rgba(16, 185, 129, 0.12);
    --border-hover: rgba(16, 185, 129, 0.35);
    
    --color-primary: #10b981; /* Emerald */
    --color-primary-hover: #059669;
    --color-primary-glow: rgba(16, 185, 129, 0.25);
    
    --color-blue: #3b82f6; /* Cobalt */
    --color-blue-hover: #2563eb;
    --color-blue-glow: rgba(59, 130, 246, 0.25);
    
    --color-danger: #ef4444; /* Ruby */
    --color-danger-hover: #dc2626;
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --radius-lg: 16px;
    --radius-md: 10px;
    --radius-sm: 6px;
    
    --sidebar-width: 260px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scrollbar-width: thin;
    scrollbar-color: var(--color-primary) var(--bg-primary);
}

/* CUSTOM SCROLLBARS */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
    background: rgba(16, 185, 129, 0.3);
    border-radius: var(--radius-sm);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    line-height: 1.6;
    overflow-x: hidden;
    background-image: 
        radial-gradient(at 0% 0%, rgba(16, 185, 129, 0.05) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(59, 130, 246, 0.05) 0px, transparent 50%);
}

/* MAIN LAYOUT STRUCTURE */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* SIDEBAR STYLES */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-card);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
    transition: var(--transition-smooth);
}

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

.brand-logo {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-blue));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-family: var(--font-heading);
    font-size: 1.3rem;
    box-shadow: 0 4px 12px var(--color-primary-glow);
}

.brand-title {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    background: linear-gradient(135deg, #ffffff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex-grow: 1;
}

.nav-item a {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.85rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-weight: 500;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.nav-item a:hover, .nav-item.active a {
    color: var(--text-primary);
    background: rgba(16, 185, 129, 0.08);
    border-color: rgba(16, 185, 129, 0.2);
}

.nav-item.active a {
    background: linear-gradient(90deg, rgba(16, 185, 129, 0.15) 0%, rgba(16, 185, 129, 0.03) 100%);
    border-left: 3px solid var(--color-primary);
    border-color: rgba(16, 185, 129, 0.2) rgba(16, 185, 129, 0.2) rgba(16, 185, 129, 0.2) var(--color-primary);
}

.nav-icon {
    font-size: 1.2rem;
    opacity: 0.8;
}

.sidebar-footer {
    border-top: 1px solid var(--border-card);
    padding-top: 1.5rem;
    margin-top: auto;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #1e293b;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--color-primary);
    border: 1px solid var(--border-card);
}

.user-info {
    font-size: 0.85rem;
}

.user-name {
    font-weight: 600;
    color: var(--text-primary);
}

.user-role {
    color: var(--text-muted);
}

/* MAIN CONTENT WRAPPER */
.main-wrapper {
    margin-left: var(--sidebar-width);
    flex-grow: 1;
    padding: 2.5rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

.header-title-wrapper h1 {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 0.25rem;
}

.header-title-wrapper p {
    color: var(--text-secondary);
}

/* CARDS AND GRID AESTHETICS */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.kpi-card {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    backdrop-filter: blur(12px);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition-smooth);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.kpi-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    box-shadow: 0 12px 40px rgba(16, 185, 129, 0.08);
}

.kpi-details h3 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.kpi-value {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.kpi-icon-box {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: rgba(16, 185, 129, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    font-size: 1.4rem;
    border: 1px solid rgba(16, 185, 129, 0.15);
}

.kpi-card.alert-card .kpi-icon-box {
    color: var(--color-danger);
    background: rgba(239, 68, 68, 0.08);
    border-color: rgba(239, 68, 68, 0.15);
}

/* SECTIONS AND CONTENT PANELS */
.content-panel {
    background: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    padding: 2rem;
    backdrop-filter: blur(12px);
    margin-bottom: 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding-bottom: 1rem;
}

.panel-header h2 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 600;
}

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.65rem 1.25rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
    text-decoration: none;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--bg-primary);
    box-shadow: 0 4px 14px var(--color-primary-glow);
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px var(--color-primary-glow);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.btn-blue {
    background: var(--color-blue);
    color: white;
    box-shadow: 0 4px 14px var(--color-blue-glow);
}

.btn-blue:hover {
    background: var(--color-blue-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px var(--color-blue-glow);
}

.btn-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-danger);
    border-color: rgba(239, 68, 68, 0.2);
}

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

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    border-radius: var(--radius-sm);
}

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

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

.custom-table th {
    font-family: var(--font-heading);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 1px;
    color: var(--text-secondary);
    padding: 1rem 1.25rem;
    border-bottom: 2px solid rgba(255, 255, 255, 0.06);
}

.custom-table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
    transition: var(--transition-smooth);
}

.custom-table tbody tr {
    transition: var(--transition-smooth);
}

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

.custom-table tbody tr:hover td {
    color: white;
}

/* STATUS BADGES */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.6rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 50px;
    gap: 0.35rem;
}

.badge::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

.badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: #10b981;
}

.badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: #f59e0b;
}

.badge-info {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
}

.badge-purple {
    background: rgba(139, 92, 246, 0.1);
    color: #8b5cf6;
}

/* FORM ELEMENTS */
.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%;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition-smooth);
}

.form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-glow);
    background: rgba(15, 23, 42, 0.8);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

/* TOAST / FLASH ALERTS */
.toast-container {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-width: 380px;
    width: 100%;
}

.toast {
    background: var(--bg-secondary);
    border-left: 4px solid var(--color-primary);
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    animation: slideIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    border-right: 1px solid rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.toast-success {
    border-left-color: var(--color-primary);
}

.toast-error {
    border-left-color: var(--color-danger);
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.toast-msg {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-primary);
}

.toast-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    transition: var(--transition-smooth);
}

.toast-close:hover {
    color: var(--text-primary);
}

@keyframes slideIn {
    from {
        transform: translateX(120%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* MODAL STYLING */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(11, 15, 25, 0.85);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

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

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-card);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 500px;
    padding: 2rem;
    position: relative;
    transform: translateY(-30px);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 15px 45px rgba(0, 0, 0, 0.5);
}

.modal.show .modal-content {
    transform: translateY(0);
}

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

.modal-header h2 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 600;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    transition: var(--transition-smooth);
}

.modal-close:hover {
    color: var(--text-primary);
}

/* DASHBOARD SPECS & LOGS */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 992px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}

.recent-activity-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.85rem 1rem;
    background: rgba(255, 255, 255, 0.02);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.03);
}

.activity-details {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.activity-title {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.85rem;
}

.activity-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.activity-quantity {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1rem;
}

/* RESPONSIVE DESIGN - COLLAPSIBLE SIDEBAR FOR MOBILE */
.menu-toggle {
    display: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    background: transparent;
    border: none;
    cursor: pointer;
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-wrapper {
        margin-left: 0;
        padding: 1.5rem;
    }
    
    .menu-toggle {
        display: block;
    }
}