/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');

/* CSS Variables for Premium Theme */
:root {
    --bg-primary: #0b0f19;
    --bg-secondary: #161d30;
    --bg-tertiary: #1f2a45;
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --color-accent: #0ea5e9; /* Sky blue */
    --color-accent-hover: #38bdf8;
    --color-success: #10b981; /* Emerald green */
    --color-success-bg: rgba(16, 185, 129, 0.1);
    --color-warning: #f59e0b; /* Amber */
    --color-warning-bg: rgba(245, 158, 11, 0.1);
    --color-danger: #ef4444; /* Rose red */
    --color-danger-bg: rgba(239, 68, 68, 0.1);
    --color-reserved: #8b5cf6; /* Purple for reserved */
    --color-reserved-bg: rgba(139, 92, 246, 0.1);

    --border-color: #2e3c60;
    --border-glow: rgba(14, 165, 233, 0.15);
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-accent: 0 0 15px rgba(14, 165, 233, 0.4);
    
    --border-radius: 12px;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--text-primary);
}

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-accent-hover);
}

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

.sidebar {
    width: 260px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    padding: 24px;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 36px;
}

.sidebar-logo {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--color-accent), var(--color-success));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: var(--bg-primary);
}

.sidebar-title {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    background: linear-gradient(to right, #ffffff, var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sidebar-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex-grow: 1;
}

.menu-item a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text-secondary);
    border-radius: var(--border-radius);
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.menu-item a:hover, .menu-item.active a {
    color: var(--text-primary);
    background-color: var(--bg-tertiary);
    border-left: 3px solid var(--color-accent);
}

.sidebar-user {
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

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

.user-name {
    font-weight: 600;
    font-size: 0.95rem;
}

.user-role {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-logout {
    background: none;
    border: none;
    color: var(--color-danger);
    cursor: pointer;
    font-family: var(--font-body);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 0;
    text-align: left;
}

.btn-logout:hover {
    text-decoration: underline;
}

.main-content {
    margin-left: 260px;
    flex-grow: 1;
    padding: 40px;
    min-height: 100vh;
    min-width: 0;
}

/* Glassmorphism Cards & Panels */
.card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-md);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-primary {
    background-color: var(--color-accent);
    color: var(--bg-primary);
}

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

.btn-success {
    background-color: var(--color-success);
    color: var(--bg-primary);
}

.btn-success:hover {
    opacity: 0.9;
}

.btn-danger {
    background-color: var(--color-danger);
    color: var(--text-primary);
}

.btn-danger:hover {
    opacity: 0.9;
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--border-color);
}

/* Forms styling */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 12px 16px;
    border-radius: var(--border-radius);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

/* Dashboard Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

.stat-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    position: relative;
    overflow: hidden;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-icon.blue {
    background-color: rgba(14, 165, 233, 0.1);
    color: var(--color-accent);
}

.stat-icon.green {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
}

.stat-icon.purple {
    background-color: rgba(139, 92, 246, 0.1);
    color: var(--color-reserved);
}

.stat-icon.yellow {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--color-warning);
}

.stat-details h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.stat-details p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Alerts */
.alert {
    padding: 16px 20px;
    border-radius: var(--border-radius);
    margin-bottom: 24px;
    font-size: 0.95rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert-success {
    background-color: var(--color-success-bg);
    color: var(--color-success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.alert-danger {
    background-color: var(--color-danger-bg);
    color: var(--color-danger);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

.table-container {
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    margin-top: 12px;
    display: block;
}

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

.table th {
    padding: 14px 16px;
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
}

.table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
    color: var(--text-primary);
}

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

/* Status Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-received {
    background-color: rgba(148, 163, 184, 0.1);
    color: #94a3b8;
}

.badge-available {
    background-color: var(--color-success-bg);
    color: var(--color-success);
}

.badge-reserved {
    background-color: var(--color-reserved-bg);
    color: var(--color-reserved);
}

.badge-in-use {
    background-color: var(--color-warning-bg);
    color: var(--color-warning);
}

.badge-issued {
    background-color: var(--color-danger-bg);
    color: var(--color-danger);
}

/* Digital Grid Map of Racks */
.rack-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 20px;
}

.rack-card {
    background-color: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    position: relative;
}

.rack-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
}

.rack-card.empty {
    border-left: 6px solid var(--text-muted);
}

.rack-card.occupied {
    border-left: 6px solid var(--color-success);
    background: linear-gradient(180deg, var(--bg-secondary) 0%, rgba(16, 185, 129, 0.05) 100%);
}

.rack-card.reserved {
    border-left: 6px solid var(--color-reserved);
    background: linear-gradient(180deg, var(--bg-secondary) 0%, rgba(139, 92, 246, 0.05) 100%);
}

.rack-name {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.rack-stats {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.rack-details-drawer {
    display: none;
    margin-top: 24px;
    padding: 24px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--color-accent);
    border-radius: var(--border-radius);
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Batch input dynamic rows */
.roll-row {
    background-color: var(--bg-tertiary);
    padding: 16px;
    border-radius: var(--border-radius);
    margin-bottom: 12px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)) 48px;
    align-items: end;
    gap: 16px;
}

.btn-remove-row {
    background-color: var(--color-danger-bg);
    color: var(--color-danger);
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* =========================================================================
   MOBILE LAYOUT VIEWS (RESPONSIVE WEB MOBILE)
   ========================================================================= */
.mobile-container {
    max-width: 500px;
    margin: 0 auto;
    background-color: var(--bg-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-bottom: 80px; /* Padding for bottom bar */
}

.mobile-header {
    background-color: var(--bg-secondary);
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.mobile-title {
    font-size: 1.1rem;
    font-weight: 700;
}

.mobile-content {
    padding: 20px;
    flex-grow: 1;
}

.mobile-nav-bar {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 500px;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-around;
    padding: 10px 0;
    z-index: 100;
    box-shadow: 0 -4px 10px rgba(0, 0, 0, 0.3);
}

.mobile-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-weight: 500;
    gap: 4px;
}

.mobile-nav-item.active {
    color: var(--color-accent);
}

.mobile-nav-icon {
    font-size: 1.3rem;
}

/* QR Code Scanner Interface styles */
.scanner-container {
    width: 100%;
    margin: 0 auto 20px;
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 2px solid var(--border-color);
    background-color: #000;
    position: relative;
}

.scanner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    box-shadow: inset 0 0 100px rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
}

.scanner-laser {
    width: 80%;
    height: 2px;
    background-color: var(--color-danger);
    position: absolute;
    animation: scanning 2s infinite ease-in-out;
}

@keyframes scanning {
    0%, 100% { top: 10%; }
    50% { top: 90%; }
}

.mobile-action-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.mobile-action-card:hover {
    background-color: var(--bg-tertiary);
}

.mobile-action-details h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.mobile-action-details p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.mobile-action-badge {
    background-color: var(--color-accent-hover);
    color: var(--bg-primary);
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
}

/* Double scan validation status visualizer */
.validation-flow {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.validation-step {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.3s ease;
}

.validation-step.active {
    border-color: var(--color-accent);
    box-shadow: 0 0 10px rgba(14, 165, 233, 0.15);
}

.validation-step.success {
    border-color: var(--color-success);
    background-color: var(--color-success-bg);
}

.validation-icon {
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.validation-icon.pending { color: var(--text-muted); }
.validation-icon.active { color: var(--color-accent); }
.validation-icon.success { color: var(--color-success); }

/* Picking checklist view */
.picking-item {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 16px;
    margin-bottom: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.picking-item.picked {
    border-color: var(--color-success);
    background-color: var(--color-success-bg);
}

.picking-details h5 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.picking-details p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* =========================================================================
   PRINT STYLES FOR QR LABELS
   ========================================================================= */
@media print {
    body {
        background: #fff !important;
        color: #000 !important;
    }
    
    .sidebar, .main-content-header, .btn, .no-print {
        display: none !important;
    }
    
    .main-content {
        margin: 0 !important;
        padding: 0 !important;
    }
    
    .print-labels-container {
        display: block !important;
    }
    
    .label-card {
        page-break-inside: avoid;
        width: 60mm;
        height: 60mm;
        padding: 5mm;
        margin: 5mm auto;
        border: 1px dashed #ccc;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        text-align: center;
    }
    
    .label-title {
        font-size: 10pt;
        font-weight: bold;
        margin-bottom: 2mm;
    }
    
    .label-qr {
        width: 35mm;
        height: 35mm;
        margin-bottom: 2mm;
    }
    
    .label-details {
        font-size: 8pt;
    }
}

/* =========================================================================
   RESPONSIVE LAYOUT & GRID SYSTEM (TABLETS & MOBILE)
   ========================================================================= */
.grid-1-2 {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 24px;
}

.grid-2-1 {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 24px;
}

@media (max-width: 992px) {
    .app-container {
        flex-direction: column;
    }

    .sidebar {
        position: relative;
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding: 16px;
    }

    .sidebar-brand {
        margin-bottom: 16px;
        justify-content: center;
    }

    .sidebar-menu {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 8px;
        justify-content: center;
    }

    .menu-item a {
        padding: 8px 12px;
        font-size: 0.85rem;
    }

    .sidebar-user {
        margin-top: 16px;
        padding-top: 16px;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }

    .main-content {
        margin-left: 0;
        padding: 20px;
    }

    .grid-1-2, .grid-2-1 {
        grid-template-columns: 1fr !important;
    }
}