/* ================================================
   Mobile Design System — Warehouse Management
   ================================================
   Shared stylesheet for all mobile warehouse operations.
   Replaces per-page inline <style> blocks.
   Dark-mode compatible using MudBlazor CSS variables.
   ================================================ */

/* ================================================
   MOBILE SHELL & LAYOUT
   ================================================ */

.mobile-shell {
    display: flex;
    flex-direction: column;
    height: 100vh;
    width: 100%;
    overflow: hidden;
    background-color: var(--mud-palette-background);
}

.mobile-app-bar {
    position: sticky;
    top: 0;
    height: 56px;
    background-color: var(--mud-palette-primary);
    color: var(--mud-palette-primary-text);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 8px;
    z-index: 1000;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.mobile-app-bar-title {
    font-size: 18px;
    font-weight: 600;
    flex: 1;
    text-align: center;
    margin: 0 8px;
}

.mobile-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 12px 8px calc(env(safe-area-inset-bottom, 0px) + 72px) 8px;
    -webkit-overflow-scrolling: touch;
}

.mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: calc(56px + env(safe-area-inset-bottom, 0px));
    background-color: var(--mud-palette-surface);
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: flex-start;
    justify-content: space-around;
    padding-top: 4px;
    padding-bottom: env(safe-area-inset-bottom, 0px);
    z-index: 1000;
}

.mobile-bottom-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    min-width: 64px;
    padding: 6px 12px;
    cursor: pointer;
    color: var(--mud-palette-text-secondary);
    transition: color 0.2s ease;
    text-decoration: none;
}

.mobile-bottom-nav-item:hover {
    color: var(--mud-palette-primary);
}

.mobile-bottom-nav-item.active {
    color: var(--mud-palette-primary);
}

.mobile-bottom-nav-icon {
    font-size: 24px;
    margin-bottom: 2px;
}

.mobile-bottom-nav-label {
    font-size: 11px;
    font-weight: 500;
    text-align: center;
    white-space: nowrap;
}

/* ================================================
   MOBILE CARDS & CONTAINERS
   ================================================ */

.mobile-container {
    max-width: 100%;
    padding: 8px;
    min-height: 100vh;
}

.mobile-card {
    margin-bottom: 12px;
    border-radius: 14px;
    background-color: var(--mud-palette-surface);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.mobile-action-card {
    border-radius: 14px;
    padding: 16px;
    margin-bottom: 12px;
    background-color: var(--mud-palette-surface);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.08);
}

.mobile-list-item {
    padding: 16px;
    min-height: 72px;
    cursor: pointer;
    border-bottom: 1px solid var(--mud-palette-divider);
    transition: background-color 0.15s ease;
}

.mobile-list-item:last-child {
    border-bottom: none;
}

.mobile-list-item:active {
    background-color: rgba(0, 0, 0, 0.04);
}

/* ================================================
   ACCENT COLORS BY OPERATION TYPE
   ================================================ */

.accent-receive {
    border-left: 4px solid #4caf50;
}

.accent-transfer {
    border-left: 4px solid #2196f3;
}

.accent-count {
    border-left: 4px solid #ff9800;
}

.accent-pick {
    border-left: 4px solid #9c27b0;
}

.accent-returns {
    border-left: 4px solid #f44336;
}

.accent-adjustment {
    border-left: 4px solid #ff9800;
}

.accent-writeoff {
    border-left: 4px solid #f44336;
}

.accent-putaway {
    border-left: 4px solid #00bcd4;
}

/* ================================================
   BUTTONS
   ================================================ */

.mobile-primary-btn {
    height: 56px !important;
    font-size: 16px !important;
    font-weight: 600 !important;
    width: 100%;
    border-radius: 12px !important;
    text-transform: none !important;
    margin-bottom: 8px;
}

.mobile-secondary-btn {
    height: 48px !important;
    font-size: 15px !important;
    width: 100%;
    border-radius: 10px !important;
    text-transform: none !important;
    margin-bottom: 8px;
}

.mobile-quick-action-btn {
    height: 48px !important;
    font-size: 14px !important;
    border-radius: 10px !important;
    text-transform: none !important;
}

.quick-qty-btn {
    min-width: 60px !important;
    min-height: 48px !important;
    font-size: 18px !important;
    font-weight: 700 !important;
    border-radius: 10px !important;
}

.mobile-icon-btn {
    width: 48px !important;
    height: 48px !important;
}

/* Floating Action Button with Safe Area */
.mobile-fab {
    position: fixed !important;
    bottom: calc(76px + env(safe-area-inset-bottom, 0px)) !important;
    right: 16px !important;
    width: 56px !important;
    height: 56px !important;
    z-index: 999 !important;
}

/* ================================================
   TYPOGRAPHY - Uses MudBlazor CSS variables for dark mode
   ================================================ */

.mobile-heading {
    font-size: 20px;
    font-weight: 700;
    color: var(--mud-palette-text-primary);
    margin-bottom: 8px;
}

.mobile-subheading {
    font-size: 16px;
    font-weight: 600;
    color: var(--mud-palette-text-primary);
    margin-bottom: 4px;
}

.mobile-body {
    font-size: 15px;
    color: var(--mud-palette-text-secondary);
    line-height: 1.5;
}

.mobile-caption {
    font-size: 13px;
    color: var(--mud-palette-text-secondary);
}

.mobile-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--mud-palette-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ================================================
   STATS & METRICS
   ================================================ */

.mobile-stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 16px;
}

.mobile-stat-card {
    background-color: var(--mud-palette-background-grey);
    border-radius: 10px;
    padding: 14px;
    text-align: center;
}

.mobile-stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--mud-palette-primary);
    display: block;
}

.mobile-stat-label {
    font-size: 12px;
    color: var(--mud-palette-text-secondary);
    margin-top: 4px;
    display: block;
}

/* ================================================
   STATUS CHIPS & BADGES
   ================================================ */

.mobile-status-chip {
    font-weight: 600;
    padding: 6px 12px;
    font-size: 12px;
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
}

.mobile-badge {
    font-size: 11px;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: 12px;
    display: inline-block;
}

/* ================================================
   PROGRESS & LOADING
   ================================================ */

.mobile-loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 50vh;
    padding: 24px;
}

.mobile-loading-text {
    margin-top: 16px;
    font-size: 15px;
    color: var(--mud-palette-text-secondary);
}

/* ================================================
   EMPTY STATES
   ================================================ */

.mobile-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 48px 24px;
    text-align: center;
}

.mobile-empty-icon {
    font-size: 64px;
    color: var(--mud-palette-text-disabled);
    margin-bottom: 16px;
}

.mobile-empty-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--mud-palette-text-primary);
    margin-bottom: 8px;
}

.mobile-empty-message {
    font-size: 14px;
    color: var(--mud-palette-text-secondary);
    line-height: 1.5;
}

/* ================================================
   SCAN INTERFACE
   ================================================ */

.mobile-scan-input {
    font-size: 16px !important;
}

.mobile-scan-btn {
    width: 56px !important;
    height: 56px !important;
}

.mobile-barcode-display {
    font-family: 'Courier New', monospace;
    font-size: 18px;
    font-weight: 600;
    padding: 12px;
    background-color: var(--mud-palette-background-grey);
    border-radius: 8px;
    text-align: center;
    color: var(--mud-palette-text-primary);
}

/* ================================================
   ITEM CARDS (for lists of inventory items)
   ================================================ */

.mobile-item-card {
    padding: 16px;
    border-radius: 12px;
    background-color: var(--mud-palette-surface);
    margin-bottom: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.mobile-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 8px;
}

.mobile-item-code {
    font-size: 16px;
    font-weight: 600;
    color: var(--mud-palette-text-primary);
}

.mobile-item-description {
    font-size: 14px;
    color: var(--mud-palette-text-secondary);
    margin-bottom: 8px;
}

.mobile-item-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 8px;
}

.mobile-item-meta-label {
    font-size: 11px;
    color: var(--mud-palette-text-secondary);
    font-weight: 600;
    text-transform: uppercase;
}

.mobile-item-meta-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--mud-palette-text-primary);
}

/* ================================================
   PACKAGING CHIPS
   ================================================ */

.mobile-packaging-chip {
    font-weight: 600;
    font-size: 11px;
    padding: 4px 8px;
    border-radius: 12px;
    display: inline-block;
    background-color: var(--mud-palette-background-grey);
    color: var(--mud-palette-text-secondary);
}

/* ================================================
   QUANTITY DISPLAYS
   ================================================ */

.mobile-quantity-large {
    font-size: 28px;
    font-weight: 700;
    color: var(--mud-palette-primary);
}

.mobile-quantity-medium {
    font-size: 20px;
    font-weight: 600;
    color: var(--mud-palette-text-primary);
}

.mobile-quantity-small {
    font-size: 16px;
    font-weight: 600;
    color: var(--mud-palette-text-primary);
}

/* ================================================
   VARIANCE INDICATORS
   ================================================ */

.mobile-variance-positive {
    color: #4caf50;
    font-weight: 600;
}

.mobile-variance-negative {
    color: #f44336;
    font-weight: 600;
}

.mobile-variance-neutral {
    color: var(--mud-palette-text-secondary);
    font-weight: 600;
}

/* ================================================
   SUMMARY CARDS (for dashboard/home)
   ================================================ */

.mobile-summary-card {
    background: linear-gradient(135deg, var(--mud-palette-primary) 0%, var(--mud-palette-primary-darken) 100%);
    color: var(--mud-palette-primary-text);
    border-radius: 14px;
    padding: 20px;
    margin-bottom: 16px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.mobile-summary-title {
    font-size: 14px;
    font-weight: 500;
    opacity: 0.9;
    margin-bottom: 4px;
}

.mobile-summary-value {
    font-size: 32px;
    font-weight: 700;
}

.mobile-summary-subtitle {
    font-size: 13px;
    opacity: 0.8;
    margin-top: 4px;
}

/* ================================================
   ALERT BANNERS
   ================================================ */

.mobile-alert {
    border-radius: 10px;
    padding: 12px 16px;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.mobile-alert-icon {
    flex-shrink: 0;
}

.mobile-alert-content {
    flex: 1;
}

.mobile-alert-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 2px;
}

.mobile-alert-message {
    font-size: 13px;
}

/* ================================================
   TOUCH GESTURES & INTERACTIONS
   ================================================ */

.mobile-touchable {
    cursor: pointer;
    user-select: none;
    -webkit-tap-highlight-color: rgba(0, 0, 0, 0.1);
    transition: transform 0.1s ease, opacity 0.1s ease;
}

.mobile-touchable:active {
    transform: scale(0.98);
    opacity: 0.9;
}

/* ================================================
   UTILITY CLASSES
   ================================================ */

.mobile-divider {
    height: 1px;
    background-color: var(--mud-palette-divider);
    margin: 12px 0;
}

.mobile-spacer-sm {
    height: 8px;
}

.mobile-spacer-md {
    height: 16px;
}

.mobile-spacer-lg {
    height: 24px;
}

.mobile-text-center {
    text-align: center;
}

.mobile-text-right {
    text-align: right;
}

.mobile-full-width {
    width: 100%;
}

/* ================================================
   SAFE AREA SUPPORT
   ================================================ */

@supports (padding: env(safe-area-inset-bottom)) {
    .mobile-safe-bottom {
        padding-bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    }
}

/* ================================================
   RESPONSIVE BREAKPOINTS (mobile-first)
   ================================================ */

/* Portrait phones (up to 360px) */
@media (max-width: 360px) {
    .mobile-stats-grid {
        grid-template-columns: 1fr;
    }

    .mobile-primary-btn {
        font-size: 15px !important;
    }

    .mobile-app-bar-title {
        font-size: 16px;
    }
}

/* Landscape phones & small tablets (361px to 767px) */
@media (min-width: 361px) and (max-width: 767px) {
    .mobile-content {
        padding-left: 12px;
        padding-right: 12px;
    }
}

/* Tablets in portrait (768px and up) — still mobile but with more room */
@media (min-width: 768px) {
    .mobile-content {
        padding-left: 16px;
        padding-right: 16px;
        max-width: 640px;
        margin-left: auto;
        margin-right: auto;
    }

    .mobile-stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}