@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
    --safe-area-bottom: env(safe-area-inset-bottom, 0px);
    --nav-height: 48px;
    --transition-fast: 0.15s ease;
    --transition-base: 0.22s ease;
    --shadow-card: 0 1px 4px rgba(0,0,0,0.06), 0 2px 10px rgba(0,0,0,0.04);
    --shadow-card-hover: 0 4px 20px rgba(0,0,0,0.11), 0 1px 4px rgba(0,0,0,0.07);
    --radius-card: 12px;
    --radius-input: 10px;
    --radius-chip: 6px;
}

html, body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    overflow-x: hidden;
    -moz-osx-font-smoothing: grayscale;
}

/* =====================================================
   PAGE ENTER ANIMATION
   ===================================================== */
@keyframes page-enter {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}
.mud-main-content > .mud-container > * {
    animation: page-enter 0.22s ease-out both;
}

/* =====================================================
   SKELETON SHIMMER (Loading States)
   ===================================================== */
@keyframes shimmer {
    from { background-position: -600px 0; }
    to   { background-position: 600px 0; }
}
.skeleton {
    background: linear-gradient(90deg, #f1f5f9 25%, #e2e8f0 50%, #f1f5f9 75%);
    background-size: 1200px 100%;
    animation: shimmer 1.6s ease-in-out infinite;
    border-radius: 6px;
    color: transparent !important;
    user-select: none;
}

/* =====================================================
   SUCCESS PULSE ANIMATION
   ===================================================== */
@keyframes success-pulse {
    0%   { box-shadow: 0 0 0 0 rgba(16,185,129,0.4); }
    60%  { box-shadow: 0 0 0 10px rgba(16,185,129,0); }
    100% { box-shadow: 0 0 0 0 rgba(16,185,129,0); }
}
.save-success {
    animation: success-pulse 0.7s ease-out forwards;
}

/* =====================================================
   SCROLLBAR STYLING
   ===================================================== */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: var(--mud-palette-lines-default, #E2E8F0);
    border-radius: 100px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--mud-palette-primary, #2563EB);
}

/* =====================================================
   APPBAR SEARCH FIELD
   ===================================================== */
.search-field .mud-input-root,
.search-field .mud-input-slot {
    color: #FFFFFF !important;
}
.search-field .mud-input-slot::placeholder {
    color: rgba(255,255,255,0.4) !important;
    opacity: 1;
}
.search-field .mud-input-outlined-border {
    border-color: rgba(255,255,255,0.15) !important;
}
.search-field:hover .mud-input-outlined-border {
    border-color: rgba(255,255,255,0.35) !important;
}

/* =====================================================
   SIDEBAR DRAWER
   ===================================================== */
.sidebar-drawer {
    border-right: 1px solid var(--mud-palette-lines-default, #E2E8F0) !important;
}
.sidebar-drawer .mud-nav-link {
    border-radius: 8px !important;
    margin: 1px 6px !important;
    padding: 6px 10px !important;
    transition: background var(--transition-fast), color var(--transition-fast);
}
.sidebar-drawer .mud-nav-link:hover {
    background: rgba(37,99,235,0.07) !important;
}
.sidebar-drawer .mud-nav-link.active {
    background: rgba(37,99,235,0.10) !important;
    color: var(--mud-palette-primary, #2563EB) !important;
    font-weight: 600 !important;
    border-left: 3px solid var(--mud-palette-primary, #2563EB);
}
.nav-section-label {
    display: flex;
    align-items: center;
    padding: 8px 16px 3px 14px;
    margin-top: 6px;
}
.nav-section-label span {
    font-size: 0.6rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: var(--mud-palette-text-disabled, #94A3B8);
    text-transform: uppercase;
}

/* Clean Enterprise Inputs */
.mud-input-outlined {
    border-radius: 8px !important;
}

.mud-input-outlined:hover .mud-input-outlined-border {
    border-color: var(--mud-palette-primary) !important;
}

/* =====================================================
   CARDS
   ===================================================== */
.mud-card {
    transition: box-shadow var(--transition-base), transform var(--transition-base);
    border-radius: var(--radius-card) !important;
    box-shadow: var(--shadow-card) !important;
}
.mud-card:hover {
    box-shadow: var(--shadow-card-hover) !important;
    transform: translateY(-1px);
}
.mud-card.no-hover:hover {
    transform: none !important;
    box-shadow: var(--shadow-card) !important;
}
.section-card {
    border-left: 3px solid var(--mud-palette-primary, #2563EB) !important;
    border-radius: 10px !important;
    padding: 14px 16px;
    margin-bottom: 10px;
}

/* Touch Friendly Interactions */
/* =====================================================
   STATUS CHIPS
   ===================================================== */
.mud-chip {
    transition: background var(--transition-fast), color var(--transition-fast);
    border-radius: var(--radius-chip) !important;
}
.status-chip-xs {
    height: 20px !important;
    font-size: 0.68rem !important;
    font-weight: 600 !important;
    padding: 0 8px !important;
    border-radius: 5px !important;
}
.status-chip-sm {
    height: 24px !important;
    font-size: 0.72rem !important;
    font-weight: 600 !important;
    padding: 0 10px !important;
}

/* =====================================================
   TABLE ENHANCEMENTS
   ===================================================== */
.mud-table-head .mud-table-cell {
    font-size: 0.7rem !important;
    font-weight: 700 !important;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--mud-palette-text-secondary, #64748B) !important;
    padding-top: 10px !important;
    padding-bottom: 10px !important;
}
.asset-row-identity {
    display: flex;
    align-items: center;
    gap: 10px;
}
.asset-row-avatar {
    width: 36px;
    height: 36px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.78rem;
    font-weight: 700;
    flex-shrink: 0;
    color: white;
}
.asset-row-meta { display: flex; flex-direction: column; min-width: 0; }
.asset-row-tag {
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--mud-palette-primary, #2563EB);
    line-height: 1;
    margin-bottom: 2px;
}
.asset-row-name {
    font-size: 0.84rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}

/* =====================================================
   EMPTY STATE
   ===================================================== */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 48px 24px;
    text-align: center;
}
.empty-state-icon {
    width: 68px;
    height: 68px;
    border-radius: 18px;
    background: rgba(37,99,235,0.09);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
}
.empty-state-icon .mud-icon-root {
    font-size: 1.9rem !important;
    color: var(--mud-palette-primary, #2563EB) !important;
}
.empty-state-title { font-size: 0.95rem !important; font-weight: 700 !important; margin-bottom: 5px !important; }
.empty-state-subtitle {
    font-size: 0.8rem !important;
    color: var(--mud-palette-text-secondary, #64748B) !important;
    max-width: 300px;
    line-height: 1.5;
}

/* =====================================================
   PAGE HEADER COMPONENT
   ===================================================== */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 14px;
}
.page-header-identity { display: flex; align-items: center; gap: 12px; }
.page-header-icon {
    width: 40px;
    height: 40px;
    border-radius: 11px;
    background: rgba(37,99,235,0.09);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.page-header-icon .mud-icon-root {
    color: var(--mud-palette-primary, #2563EB) !important;
    font-size: 1.3rem !important;
}
.page-header-title { font-size: 1.25rem !important; font-weight: 800 !important; letter-spacing: -0.3px !important; line-height: 1.2 !important; }
.page-header-subtitle { font-size: 0.78rem !important; margin-top: 2px !important; line-height: 1 !important; }
.page-header-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

/* =====================================================
   KPI CARDS (Dashboard)
   ===================================================== */
.kpi-progress-bar {
    height: 3px;
    border-radius: 2px;
    background: rgba(0,0,0,0.08);
    margin-top: 10px;
    overflow: hidden;
}
.kpi-progress-fill {
    height: 100%;
    border-radius: 2px;
    transition: width 0.9s cubic-bezier(.4,0,.2,1);
}

/* =====================================================
   TOUCH / INTERACTION
   ===================================================== */
.mud-button, .mud-icon-button, .mud-nav-link {
    min-height: 36px;
    touch-action: manipulation;
}

/* Mobile Bottom Navigation Bar */
.mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1200;
    height: calc(56px + var(--safe-area-bottom));
    padding-bottom: var(--safe-area-bottom);
    background: rgba(15, 23, 42, 0.96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-around;
    align-items: center;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.25);
}

.mobile-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: #94A3B8;
    font-size: 0.65rem;
    font-weight: 500;
    padding: 4px 0;
    transition: color 0.15s ease, transform 0.15s ease;
    cursor: pointer;
    border: none;
    background: transparent;
}

.mobile-nav-item:active {
    transform: scale(0.92);
}

.mobile-nav-item.active, .mobile-nav-item:hover {
    color: #38BDF8;
    font-weight: 600;
}
.mobile-nav-item.active::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: #38BDF8;
}

.mobile-nav-item .mud-icon-root {
    font-size: 1.25rem !important;
    margin-bottom: 2px;
}

.mobile-nav-item.center-action {
    position: relative;
    top: -12px;
}

.mobile-nav-item.center-action .action-circle {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: linear-gradient(135deg, #2563EB 0%, #1D4ED8 100%);
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(37,99,235,0.5);
    border: 2.5px solid rgba(10,15,26,0.97);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.mobile-nav-item.center-action:active .action-circle {
    transform: scale(0.9);
}

/* Mobile Responsive Tables */
.mud-table-container {
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch;
}

@media (max-width: 768px) {
    /* Responsive font scaling for headers */
    .mobile-header-title {
        font-size: 1.25rem !important;
        line-height: 1.3 !important;
    }
    
    .mobile-header-subtitle {
        font-size: 0.78rem !important;
    }

    /* Page container compact spacing on mobile */
    .mobile-page-container {
        padding-left: 8px !important;
        padding-right: 8px !important;
        padding-bottom: 75px !important;
    }

    /* Dense MudCard spacing on mobile */
    .mud-card-content {
        padding: 12px !important;
    }

    .mud-card-header {
        padding: 12px 12px 4px 12px !important;
    }

    /* Responsive MudTable on mobile */
    .mud-table-cell {
        padding: 6px 10px !important;
        font-size: 0.82rem !important;
    }

    .mud-table-cell:first-child {
        padding-left: 10px !important;
    }

    .mud-table-cell:last-child {
        padding-right: 10px !important;
    }

    /* Compact KPI Card Layout */
    .kpi-card {
        padding: 10px 8px !important;
    }
    
    .kpi-title {
        font-size: 0.65rem !important;
        letter-spacing: 0.5px !important;
    }

    .kpi-value {
        font-size: 1.35rem !important;
        font-weight: 800 !important;
    }

    /* Action bar buttons full width or compact flex */
    .mobile-action-bar {
        display: flex !important;
        flex-wrap: wrap !important;
        width: 100% !important;
        gap: 6px !important;
    }

    .mobile-action-bar .mud-button {
        flex: 1 1 auto !important;
        min-width: 120px !important;
        font-size: 0.78rem !important;
    }

    /* Hide desktop-only elements */
    .desktop-only {
        display: none !important;
    }
}

@media (min-width: 769px) {
    .mobile-bottom-nav {
        display: none !important;
    }
    .mobile-only {
        display: none !important;
    }
    /* Subtle dot-grid texture on desktop light mode */
    body {
        background-image: radial-gradient(circle, rgba(37,99,235,0.035) 1px, transparent 1px);
        background-size: 24px 24px;
    }
}

/* =====================================================
   PRINT — Branded QR Sticker
   ===================================================== */
@media print {
    .mobile-bottom-nav, .mud-appbar, .sidebar-drawer, .mud-drawer, nav, .no-print {
        display: none !important;
    }
    body * { visibility: hidden; }
    #print-tag-container, #print-tag-container * { visibility: visible; }
    #print-tag-container {
        position: absolute;
        left: 0; top: 0;
        width: 100%;
        margin: 0; padding: 0;
    }
    @page {
        size: 60mm 40mm;
        margin: 2mm;
    }
    .print-tag-brand {
        display: flex;
        align-items: center;
        gap: 4px;
        padding-bottom: 1.5mm;
        border-bottom: 0.5px solid #CBD5E1;
        margin-bottom: 1.5mm;
    }
    .print-tag-brand-monogram {
        width: 11px; height: 11px;
        border-radius: 3px;
        background: #2563EB;
        display: flex; align-items: center; justify-content: center;
        font-size: 5px; font-weight: 900; color: white;
    }
    .print-tag-brand-name { font-size: 5.5pt; font-weight: 700; color: #0F172A; }
    .print-tag-asset-name { font-size: 7pt; font-weight: 700; color: #0F172A; margin-bottom: 1mm; }
    .print-tag-meta { font-size: 5pt; color: #64748B; line-height: 1.4; }
    .print-tag-footer {
        font-size: 4.5pt;
        color: #94A3B8;
        border-top: 0.5px solid #E2E8F0;
        padding-top: 1mm;
        margin-top: 1.5mm;
        text-align: center;
    }
}