/* ===== CSS Variables & Design Tokens ===== */
:root {
    /* Colors */
    --color-primary: #667eea;
    --color-primary-dark: #5568d3;
    --color-secondary: #764ba2;
    --color-success: #43e97b;
    --color-warning: #f5576c;
    --color-info: #4facfe;

    /* Dark Theme (Default) */
    --color-bg-primary: #0f0f1e;
    --color-bg-secondary: #1a1a2e;
    --color-bg-tertiary: #252541;
    --color-bg-card: rgba(255, 255, 255, 0.05);
    --color-text-primary: #ffffff;
    --color-text-secondary: #b8b8d1;
    --color-text-muted: #7676a0;
    --color-border: rgba(255, 255, 255, 0.1);

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 32px rgba(102, 126, 234, 0.3);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;

    /* Overlay Gradient */
    --overlay-gradient-start: rgba(15, 15, 30, 0.9);
}

/* ===== Light Mode Theme ===== */
body.light-mode {
    --color-bg-primary: #f5f7fa;
    --color-bg-secondary: #ffffff;
    --color-bg-tertiary: #e8ecf1;
    --color-bg-card: rgba(255, 255, 255, 0.95);
    --color-text-primary: #1a1a2e;
    --color-text-secondary: #4a4a68;
    --color-text-muted: #8e8ea9;
    --color-border: rgba(0, 0, 0, 0.1);

    /* Light mode specific shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
    --shadow-glow: 0 0 32px rgba(102, 126, 234, 0.2);

    --overlay-gradient-start: rgba(255, 255, 255, 0.95);
}

/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Lucide Icons */
.lucide {
    vertical-align: middle;
    width: 24px;
    height: 24px;
}

.w-4 {
    width: 16px;
}

.h-4 {
    height: 16px;
}

.text-success {
    color: var(--color-success);
}

.text-danger {
    color: var(--color-warning);
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    width: 100%;
}

body {
    font-family: var(--font-family);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    width: 100%;
    position: relative;
}

/* Prevent text overflow globally */
* {
    overflow-wrap: break-word;
}

/* ===== Loading Overlay ===== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 15, 30, 0.95);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity var(--transition-base);
}

.loading-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ===== Toast Notifications ===== */
.toast-container {
    position: fixed;
    top: var(--space-lg);
    right: var(--space-lg);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.toast {
    background: var(--color-bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    min-width: 300px;
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.toast.success {
    border-left: 4px solid var(--color-success);
}

.toast.error {
    border-left: 4px solid var(--color-warning);
}

.toast.info {
    border-left: 4px solid var(--color-info);
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ===== Navigation ===== */
.navbar {
    background: rgba(26, 26, 46, 0.95);
    backdrop-filter: blur(10px);
    padding: var(--space-md) var(--space-xl);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    /* Brand left, controls right */
    gap: var(--space-md);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo {
    height: 2rem;
    width: auto;
    max-width: 100%;
    object-fit: contain;
}

.brand-icon {
    font-size: 2rem;
    line-height: 1;
}

.nav-brand h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-left: auto;
    /* Push to the right */
}

.theme-toggle-btn {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    padding: var(--space-xs);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 1.5rem;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.theme-toggle-btn:hover {
    background: var(--color-bg-tertiary);
    border-color: var(--color-primary);
    transform: scale(1.1);
}

.theme-icon {
    line-height: 1;
}

/* Light mode navbar */
body.light-mode .navbar {
    background: #ffffff;
    border-bottom-color: rgba(0, 0, 0, 0.1);
}

/* Global Light Mode Nav Link Styles (Matches Mobile) */
body.light-mode .nav-link {
    color: #475569;
}

body.light-mode .nav-link:hover {
    background-color: #f1f5f9;
    color: #1e293b;
}

body.light-mode .nav-link.active {
    background: #f1f5f9;
    color: var(--color-primary);
    border: 1px solid #e2e8f0;
    box-shadow: none;
}

body.light-mode .nav-link .nav-icon {
    color: inherit;
}

body.light-mode .mobile-menu-toggle span {
    background-color: var(--color-text-primary);
}

.nav-links {
    /* Hidden by default, only visible when hamburger */
    display: none;
    position: fixed;
    /* Changed from absolute to fixed for full screen */
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    height: 100vh;
    background-color: var(--color-bg-primary);
    /* Ensure opaque background */
    flex-direction: column;
    padding: 0;
    /* Header handles padding */
    border-top: none;
    box-shadow: none;
    z-index: 10001;
    /* Cover everything including navbar */
    overflow-y: auto;
}

.nav-links.active {
    display: flex;
}

.nav-link {
    color: var(--color-text-secondary);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 500;
    transition: all var(--transition-base);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    min-height: 48px;
    white-space: nowrap;
}

.nav-link:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border-color: var(--color-border);
}

.nav-link.active {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    box-shadow: var(--shadow-glow);
}

.nav-icon {
    font-size: 1.25rem;
}

/* ===== Main Content ===== */
.main-content {
    padding: var(--space-xl);
    max-width: 1600px;
    margin: 0 auto;
}

.view {
    display: none;
    animation: fadeIn 0.3s ease;
}

.view.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.view-header {
    margin-bottom: var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.view-header h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
}

.view-subtitle {
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
}

/* ===== Cards ===== */
.card {
    background: var(--color-bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.card:hover {
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--color-text-primary);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-lg);
}

.clickable-card {
    transition: all var(--transition-base);
}

.clickable-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(102, 126, 234, 0.3);
    border-color: var(--color-primary);
}

.clickable-card:active {
    transform: translateY(-2px);
}

/* ===== KPI Cards ===== */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.kpi-card {
    background: var(--color-bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    transition: all var(--transition-base);
}

.kpi-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.kpi-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    box-shadow: var(--shadow-md);
}

.kpi-content {
    flex: 1;
}

.kpi-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-xs);
}

.kpi-value {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text-primary);
}

/* ===== Buttons ===== */
.btn {
    padding: var(--space-sm) var(--space-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    min-height: 48px;
    font-family: var(--font-family);
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: translateY(0);
}

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

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

.btn-danger {
    background: linear-gradient(135deg, #f5576c 0%, #f093fb 100%);
    color: white;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ===== Forms ===== */
.form-card {
    max-width: 600px;
}

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-xs);
    font-weight: 500;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

/* ===== Unified Search Bar ===== */
.unified-search-bar {
    display: flex;
    align-items: center;
    background: var(--color-bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 0.5rem;
    margin-bottom: var(--space-lg);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.unified-search-bar:focus-within {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.search-icon-wrapper {
    padding: 0 1rem;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
}

.unified-search-input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 0.75rem 0;
    font-size: 1rem;
    color: var(--color-text-primary);
    min-width: 200px;
}

.unified-search-input:focus {
    outline: none;
}

.search-divider {
    width: 1px;
    height: 24px;
    background: var(--color-border);
    margin: 0 0.5rem;
}

.unified-search-select {
    border: none;
    background: transparent;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    color: var(--color-text-primary);
    cursor: pointer;
    outline: none;
    min-width: 150px;
    font-weight: 500;
}

.unified-search-select option {
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

.form-control {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    transition: all var(--transition-base);
    min-height: 48px;
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

select.form-control {
    cursor: pointer;
}

/* ===== Search ===== */
.search-bar {
    margin-bottom: var(--space-lg);
}

.search-input {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text-primary);
    font-size: var(--font-size-lg);
    font-family: var(--font-family);
    transition: all var(--transition-base);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

/* ===== Lists ===== */
.list-items {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.list-item {
    padding: var(--space-md);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-fast);
}

.list-item:hover {
    background: var(--color-bg-card);
    border-color: var(--color-primary);
}

.empty-state {
    text-align: center;
    color: var(--color-text-muted);
    padding: var(--space-xl);
    font-style: italic;
}

/* ===== Dashboard ===== */
.dashboard-grid {
    display: grid;
    gap: var(--space-lg);
}

/* ===== Sales View ===== */
.sales-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

.sale-cart {
    min-height: 200px;
    margin-bottom: var(--space-md);
}

/* ===== Premium Product Cards (Iteration 2) ===== */
.product-card-premium {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 24px;
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.product-card-premium::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0) 100%);
    pointer-events: none;
    z-index: 0;
}

.product-card-premium:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: rgba(102, 126, 234, 0.4);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2),
        0 0 20px rgba(102, 126, 234, 0.1);
    background: rgba(255, 255, 255, 0.05);
}

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

.premium-icon-wrapper {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    border: 1px solid rgba(102, 126, 234, 0.2);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.product-card-premium:hover .premium-icon-wrapper {
    transform: scale(1.1) rotate(5deg);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    border-color: transparent;
}

/* Quick Sale FAB */
.fab-button {
    position: fixed !important;
    /* Force positioning */
    bottom: 2rem !important;
    right: 2rem !important;
    left: auto !important;
    /* Reset left if set elsewhere */
    top: auto !important;
    /* Reset top if set elsewhere */
    width: 5rem;
    /* Even larger */
    height: 5rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    border: none;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 2147483647;
    /* Max z-index */
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    animation: pulse-fab 2s infinite;
}

.fab-button:hover {
    transform: translateY(-4px) scale(1.1);
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.8);
    animation: none;
}

.fab-button:active {
    transform: translateY(0) scale(0.95);
}

.fab-button i,
.fab-button svg {
    width: 2.5rem;
    /* Larger icon */
    height: 2.5rem;
}

@keyframes pulse-fab {
    0% {
        box-shadow: 0 0 0 0 rgba(102, 126, 234, 0.4);
    }

    70% {
        box-shadow: 0 0 0 20px rgba(102, 126, 234, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(102, 126, 234, 0);
    }
}

/* Quick Sale Modal Styles */
.quick-sale-grid {
    display: grid;
    gap: 1rem;
}

.quick-sale-cart {
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    padding: 1rem;
    max-height: 200px;
    overflow-y: auto;
}

.quick-sale-total {
    font-size: 1.25rem;
    font-weight: 700;
    text-align: right;
    color: var(--color-primary);
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--color-border);
}

.premium-stock-badge {
    padding: 0.5rem 1rem;
    border-radius: 30px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    backdrop-filter: blur(4px);
}

.premium-stock-badge.in-stock {
    background: rgba(67, 233, 123, 0.15);
    color: #43e97b;
    border: 1px solid rgba(67, 233, 123, 0.3);
    box-shadow: 0 0 10px rgba(67, 233, 123, 0.1);
}

.premium-stock-badge.low-stock {
    background: rgba(245, 87, 108, 0.15);
    color: #f5576c;
    border: 1px solid rgba(245, 87, 108, 0.3);
    box-shadow: 0 0 10px rgba(245, 87, 108, 0.1);
    animation: pulse-glow 2s infinite;
}

@keyframes pulse-glow {
    0% {
        box-shadow: 0 0 0 0 rgba(245, 87, 108, 0.4);
    }

    70% {
        box-shadow: 0 0 0 8px rgba(245, 87, 108, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(245, 87, 108, 0);
    }
}

.premium-card-body {
    position: relative;
    z-index: 1;
}

.premium-product-name {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(90deg, #fff, #ccc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.premium-product-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
}

.premium-stats-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.premium-stat-pill {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    transition: background 0.3s ease;
}

.product-card-premium:hover .premium-stat-pill {
    background: rgba(255, 255, 255, 0.06);
}

.premium-stat-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text-muted);
    font-weight: 600;
}

.premium-stat-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text-primary);
    font-family: 'JetBrains Mono', monospace;
    /* Or system monospace */
}

.premium-card-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 1.5rem;
    background: linear-gradient(to top, var(--overlay-gradient-start) 0%, transparent 100%);
    transform: translateY(100%);
    transition: transform 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: flex-end;
    z-index: 2;
    height: 100px;
}

.product-card-premium:hover .premium-card-overlay {
    transform: translateY(0);
}

.premium-action-btn {
    background: white;
    color: var(--color-bg-primary);
    border: none;
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    transform: translateY(0);
    transition: transform 0.2s;
}

.premium-action-btn:hover {
    transform: scale(1.05);
}

/* Light Mode Card Overrides */
body.light-mode .product-card-premium {
    background: #ffffff;
    border-color: rgba(0, 0, 0, 0.08);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

body.light-mode .product-card-premium:hover {
    border-color: var(--color-primary);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1), 0 0 20px rgba(102, 126, 234, 0.15);
}

body.light-mode .premium-stat-pill {
    background: #f8f9fa;
    border-color: rgba(0, 0, 0, 0.05);
}

body.light-mode .premium-stat-pill:hover {
    background: #f1f3f5;
}

body.light-mode .premium-product-name {
    background: none;
    -webkit-text-fill-color: var(--color-text-primary);
    color: var(--color-text-primary);
}

.cart-item-info h4 {
    font-size: var(--font-size-base);
    margin-bottom: var(--space-xs);
}

.cart-item-info p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.sale-footer {
    border-top: 1px solid var(--color-border);
    padding-top: var(--space-md);
}

.sale-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: var(--space-md) 0;
}

.total-amount {
    font-size: var(--font-size-xl);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Manufacturing View ===== */
.manufacturing-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

.components-list {
    margin-top: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.component-item {
    padding: var(--space-md);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* ===== Reports View ===== */
.reports-tabs {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}

.tab-btn {
    padding: var(--space-md) var(--space-lg);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--color-text-secondary);
    cursor: pointer;
    font-size: var(--font-size-base);
    font-weight: 500;
    transition: all var(--transition-base);
    font-family: var(--font-family);
}

.tab-btn:hover {
    color: var(--color-text-primary);
}

.tab-btn.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

/* ===== Toggle Switch ===== */
/* ===== Toggle Switch ===== */
.toggle-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    padding: var(--space-xs) 0;
}

.toggle-wrapper {
    position: relative;
    display: inline-block;
    cursor: pointer;
}

.toggle-wrapper input[type="checkbox"] {
    display: none;
}

.toggle-switch {
    position: relative;
    width: 50px;
    height: 26px;
    background: var(--color-bg-tertiary);
    border-radius: 13px;
    transition: background var(--transition-base);
    border: 1px solid var(--color-border);
    display: block;
}

.toggle-switch::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: white;
    top: 2px;
    left: 2px;
    transition: transform var(--transition-base);
}

.toggle-wrapper input[type="checkbox"]:checked+.toggle-switch {
    background: var(--color-primary);
}

.toggle-wrapper input[type="checkbox"]:checked+.toggle-switch::before {
    transform: translateX(24px);
}

.toggle-wrapper input[type="checkbox"]:disabled+.toggle-switch {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Legacy support if needed, or just remove .toggle-label styles if not used elsewhere */
.toggle-label {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-sm);
    cursor: pointer;
    user-select: none;
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-secondary);
    transition: all var(--transition-base);
}

.report-content {
    display: none;
}

.report-content.active {
    display: block;
}

/* ===== Modal ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 15, 30, 0.9);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease;
}

.modal {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* ===== Task Cards ===== */
.task-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.task-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.task-type-badge {
    background: var(--color-primary);
    color: white;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.task-date {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    margin: 0;
}

.task-items {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    padding: var(--space-md);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
}

.task-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-xs);
    border-radius: var(--radius-sm);
}

.task-item.has-stock {
    background: rgba(67, 233, 123, 0.1);
}

.task-item.no-stock {
    background: rgba(245, 87, 108, 0.1);
}

.task-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.task-total {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.task-total strong {
    font-size: var(--font-size-xl);
    color: var(--color-primary);
}

/* ===== Icon Buttons ===== */
.btn-icon {
    background: transparent;
    border: 1px solid var(--color-border);
    padding: var(--space-xs);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 1.2rem;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.btn-icon:hover {
    transform: scale(1.1);
}

.btn-icon.btn-danger {
    border-color: var(--color-warning);
}

.btn-icon.btn-danger:hover {
    background: var(--color-warning);
    border-color: var(--color-warning);
}

.modal-header {
    margin-bottom: var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--space-xs);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

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

/* ===== Mobile Navigation (Hamburger Menu - ALWAYS VISIBLE) ===== */
.mobile-menu-toggle {
    display: block;
    /* Always visible, not just on mobile */
    background: transparent;
    border: none;
    cursor: pointer;
    padding: var(--space-xs);
    width: 48px;
    height: 48px;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--color-text-primary);
    margin: 5px 0;
    border-radius: 3px;
    transition: all var(--transition-base);
}

/* Hamburger Animation */
.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {

    .sales-container,
    .manufacturing-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: var(--space-sm) var(--space-md);
        justify-content: space-between;
        background: rgba(26, 26, 46, 0.95);
        position: sticky;
        top: 0;
        z-index: 1000;
        height: 70px;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .nav-brand h1 {
        font-size: 1.25rem;
    }

    .nav-links {
        position: fixed;
        top: 0;
        /* Cover the entire screen including header */
        left: 0;
        right: 0;
        bottom: 0;
        width: 100vw;
        height: 100vh;
        background: rgba(15, 15, 30, 0.98);
        backdrop-filter: blur(20px);
        display: flex !important;
        flex-direction: column !important;
        flex-wrap: nowrap !important;
        padding: var(--space-lg);
        padding-top: 90px;
        /* Space for the toggle button */
        gap: var(--space-md);
        transform: translateX(100%);
        transition: transform var(--transition-base);
        overflow-y: auto;
        justify-content: flex-start;
        border-top: none;
        /* No border needed for full screen */
        z-index: 1000;
        /* Behind the toggle button (1001) */
    }

    .nav-links.active {
        transform: translateX(0);
    }

    .nav-link {
        width: 100%;
        padding: var(--space-md);
        border: 1px solid var(--color-border);
        background: var(--color-bg-tertiary);
        justify-content: flex-start;
        /* Align content to start */
        align-items: center;
        /* Center vertically */
        font-size: var(--font-size-lg);
        display: flex;
        /* Ensure flex layout for icon + text */
        flex-direction: row;
        /* Icon and text side-by-side */
        gap: var(--space-md);
        /* Space between icon and text */
        border-radius: var(--radius-md);
        min-height: 60px;
        /* Taller touch target */
    }

    .nav-link:hover,
    .nav-link.active {
        background: var(--color-bg-card);
        border-color: var(--color-primary);
        transform: translateX(5px);
        /* Subtle hover effect */
    }

    /* Light Mode Mobile Menu Overrides */
    body.light-mode .nav-links {
        background-color: #ffffff !important;
        background: #ffffff !important;
    }

    body.light-mode .mobile-nav-header {
        background-color: #f8fafc !important;
        border-bottom-color: #e2e8f0 !important;
    }

    body.light-mode .nav-link {
        color: #475569 !important;
    }

    body.light-mode .nav-link:hover {
        background-color: #f1f5f9 !important;
        color: #1e293b !important;
    }

    body.light-mode .nav-link.active {
        background: #f1f5f9 !important;
        color: var(--color-primary) !important;
        border: 1px solid #e2e8f0 !important;
        box-shadow: none !important;
    }

    /* Ensure icons are visible */
    body.light-mode .nav-link .nav-icon {
        color: inherit !important;
    }

    .nav-icon {
        font-size: 1.5rem;
        margin-right: 0;
        /* Reset margin as we use gap */
        width: 30px;
        /* Fixed width for alignment */
        text-align: center;
    }

    .nav-text {
        font-size: 1.1rem;
        /* Larger text */
        font-weight: 500;
    }

    .main-content {
        padding: var(--space-sm);
        width: 100%;
        overflow-x: hidden;
    }

    .kpi-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .cards-grid {
        grid-template-columns: 1fr;
    }
}

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

/* Hide redundant mobile theme toggle link globally */
#theme-toggle-mobile {
    display: none !important;
}

/* ========================================= */
/* UNIFIED HAMBURGER MENU (DESKTOP & MOBILE) */
/* ========================================= */

/* 1. Force Mobile Elements Visibility Globally */
.mobile-nav-header {
    display: flex !important;
}

.mobile-menu-toggle {
    display: flex !important;
}

/* 2. Hide Main Toggle when Menu Open */
#mobile-menu-toggle.active {
    display: none !important;
}

/* 3. Light Mode Menu Styles (Global) */
body.light-mode .nav-links {
    background-color: #ffffff !important;
    background: #ffffff !important;
}

body.light-mode .mobile-nav-header {
    background-color: #f8fafc !important;
    border-bottom-color: #e2e8f0 !important;
}

body.light-mode .nav-link {
    color: #475569 !important;
}

body.light-mode .nav-link:hover {
    background-color: #f1f5f9 !important;
    color: #1e293b !important;
}

body.light-mode .nav-link.active {
    background: #f1f5f9 !important;
    color: var(--color-primary) !important;
    border: 1px solid #e2e8f0 !important;
    box-shadow: none !important;
}

body.light-mode .nav-link .nav-icon {
    color: inherit !important;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-bg-tertiary);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* ===== Tasks Statistics Dashboard ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.stat-card {
    display: flex;
    flex-direction: column;
    padding: 1.25rem;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary);
}

@media (max-width: 768px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .stat-value {
        font-size: 1.5rem;
    }
}

/* ===== Product Card Cursor ===== */
.product-card {
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.product-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.product-card .card-actions button {
    position: relative;
    z-index: 2;
    /* Ensure buttons are clickable above card click */
}

/* ===== Batch Details Modal ===== */
.batch-summary .stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.table-responsive {
    overflow-x: auto;
    margin-top: 1rem;
    -webkit-overflow-scrolling: touch;
    width: 100%;
    display: block;
}

.badge-secondary {
    background: var(--color-bg-secondary);
    color: var(--color-text-secondary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
}

/* ===== Utility Classes ===== */
.hidden {
    display: none !important;
}

/* ===== Premium Customer Card ===== */
.customer-card-premium {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid var(--color-border);
    position: relative;
    display: flex;
    flex-direction: column;
}

.customer-card-premium:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    border-color: var(--color-primary);
}

.customer-card-header {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.01) 100%);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border-bottom: 1px solid var(--color-border);
}

.customer-avatar-premium {
    width: 50px;
    height: 50px;
    background: var(--color-bg-tertiary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.customer-info-premium {
    flex: 1;
}

.customer-name-premium {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.25rem;
}

.customer-group-badge-premium {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(var(--color-primary-rgb), 0.1);
    color: var(--color-primary);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid rgba(var(--color-primary-rgb), 0.2);
}

.customer-card-body {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* ===== Styled Group Selector ===== */
.group-selector-container {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.styled-select-wrapper {
    position: relative;
    flex: 1;
}

.styled-select {
    appearance: none;
    -webkit-appearance: none;
    width: 100%;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    color: var(--color-text-primary);
    padding: 0.5rem 2rem 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    cursor: pointer;
    transition: border-color 0.2s;
}

.styled-select:hover {
    border-color: var(--color-text-secondary);
}

.styled-select:focus {
    outline: none;
    border-color: var(--color-primary);
}

.styled-select-arrow {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: var(--color-text-secondary);
}

.add-group-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    cursor: pointer;
    transition: all 0.2s;
}

.add-group-btn:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

/* ===== Customer Stats Grid ===== */
.customer-stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.stat-item {
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-md);
    padding: 0.75rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    border: 1px solid var(--color-border);
}

.stat-item .stat-label {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.25rem;
}

.stat-item .stat-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

/* ===== Inline Group Creation Form ===== */
.new-group-form {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
    animation: slideDown 0.2s ease-out;
}

.new-group-form.hidden {
    display: none;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Quick Sale 2-Phase Styles */
.qs-phase-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.qs-header-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.qs-customer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 0.75rem;
    max-height: 60vh;
    overflow-y: auto;
    padding: 0.25rem;
}

.qs-customer-card {
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
}

.qs-customer-card:hover {
    background: var(--color-bg-card);
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.qs-customer-avatar {
    width: 40px;
    height: 40px;
    background: var(--color-bg-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
}

.qs-customer-avatar.small {
    width: 32px;
    height: 32px;
}

.qs-customer-info {
    flex: 1;
}

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

.qs-customer-group {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}

.qs-customer-arrow {
    color: var(--color-text-muted);
}

.qs-locked-customer {
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: var(--radius-md);
    padding: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

/* Mobile Optimization for Quick Sale */
/* Quick Sale Input Group (Desktop Default) */
.qs-input-group {
    display: flex;
    gap: 0.5rem;
}

.qs-input-group #qs-product {
    flex: 2;
}

.qs-input-group #qs-price {
    width: 100px;
}

.qs-input-group #qs-quantity {
    width: 80px;
}

/* Mobile Optimization for Quick Sale */
@media (max-width: 768px) {
    .qs-header-actions {
        flex-direction: column;
        gap: 0.5rem;
    }

    .qs-customer-grid {
        grid-template-columns: 1fr;
        max-height: 50vh;
    }

    /* Robust Grid Layout using Areas */
    .qs-input-group {
        display: grid !important;
        grid-template-areas:
            "product product"
            "price quantity"
            "add add";
        grid-template-columns: 1fr 1fr !important;
        gap: 0.75rem !important;
    }

    .qs-input-group #qs-product {
        grid-area: product;
        width: 100% !important;
        flex: none !important;
        /* Override desktop flex */
    }

    .qs-input-group #qs-price {
        grid-area: price;
        width: 100% !important;
        /* Override desktop width */
        margin: 0 !important;
        text-align: center;
    }

    .qs-input-group #qs-quantity {
        grid-area: quantity;
        width: 100% !important;
        /* Override desktop width */
        margin: 0 !important;
        text-align: center;
    }

    .qs-input-group #qs-add-btn {
        grid-area: add;
        width: 100% !important;
        background-color: var(--color-primary);
        color: white;
        padding: 0.75rem !important;
        margin-top: 0.25rem;
        border-radius: var(--radius-md);
        display: flex;
        justify-content: center;
        align-items: center;
    }

    /* Center Modal Title on Mobile */
    .modal-header h3 {
        text-align: center;
        width: 100%;
        padding-left: 24px;
        /* Offset for close button width to keep true center */
    }

    /* Adjust Modal Content Padding */
    .modal-content {
        padding: 1rem;
        width: 95%;
        max-height: 90vh;
    }
}

/* Hide FAB when modal is open */
/* Hide FAB when modal is open */
body.modal-open #quick-sale-fab {
    display: none !important;
}

/* =========================================
   TO-DO CALENDAR STYLES
   ========================================= */

.calendar-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.calendar-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* To-Do Calendar Styles */
.calendar-month-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 1px;
    background: var(--color-border);
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    overflow: hidden;
}

.calendar-header {
    background: var(--color-bg-secondary);
    padding: 0.75rem;
    text-align: center;
    font-weight: 600;
    font-size: 0.875rem;
}

.calendar-day {
    background: var(--color-bg-primary);
    min-height: 100px;
    padding: 0.5rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

.calendar-day:hover {
    background-color: var(--color-bg-tertiary);
}

.calendar-day.empty {
    background: var(--color-bg-secondary);
    cursor: default;
}

.calendar-day.today {
    background-color: #f0f7ff;
    /* Light blue tint */
}

.day-number {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
}

.calendar-event {
    background: var(--color-primary);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    margin-bottom: 0.25rem;
    cursor: pointer;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.calendar-event.completed {
    background: var(--color-success);
    opacity: 0.7;
    text-decoration: line-through;
}

/* Week View */
.calendar-week-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 1px;
    background: var(--color-border);
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    overflow: hidden;
    height: 600px;
}

.calendar-week-col {
    background: var(--color-bg-primary);
    display: flex;
    flex-direction: column;
    cursor: pointer;
}

.calendar-week-col:hover {
    background-color: var(--color-bg-tertiary);
}

.week-header {
    padding: 0.75rem;
    text-align: center;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
}

.day-name {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

.day-num {
    font-size: 1.25rem;
    font-weight: 600;
}

/* Day View */
.calendar-day-view {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Fix Date Picker Overflow */
input[type="date"].form-control {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    appearance: none;
    /* Remove default browser styling */
    -webkit-appearance: none;
    padding: 0.75rem;
    /* Match other inputs */
    line-height: normal;
}

/* Mobile Nav Header */
.mobile-nav-header {
    display: none;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 1rem;
    width: 100%;
    background-color: var(--color-bg-secondary);
    /* Distinct background */
    flex-shrink: 0;
    min-height: 60px;
    box-sizing: border-box;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    /* Subtle shadow */
}

.theme-toggle-btn-mobile,
.mobile-menu-close {
    background: none;
    border: none;
    color: var(--color-text-primary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle-btn-mobile:hover,
.mobile-menu-close:hover {
    background-color: var(--color-bg-secondary);
}

/* Premium To-Do Card Styles */
.todo-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 0.75rem;
    padding: 1rem;
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transition: all 0.2s;
    position: relative;
    overflow: hidden;
}

.todo-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: var(--color-primary);
    opacity: 0.8;
}

.todo-card.completed::before {
    background: var(--color-success);
}

.todo-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-color: var(--color-primary);
}

.todo-card.completed .todo-title {
    text-decoration: line-through;
    color: var(--color-text-muted);
}

.todo-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.todo-checkbox {
    width: 1.25rem;
    height: 1.25rem;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.todo-title {
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-text-primary);
}

.todo-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--color-text-secondary);
}

/* Customer Selector Styles */
.customer-selector-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
    max-height: 60vh;
    overflow-y: auto;
    padding: 0.5rem;
}

.customer-selector-card {
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: 0.5rem;
    padding: 1rem;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.customer-selector-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.selected-customer-display {
    display: flex;
    gap: 0.5rem;
}

.selected-customer-display input {
    flex: 1;
    background-color: var(--color-bg-secondary);
    cursor: default;
}

/* Mobile adjustments for Calendar */
@media (max-width: 768px) {
    .mobile-nav-header {
        display: flex;
    }

    /* Hide Month/Week options on mobile */
    #todo-view-select option[value="month"],
    #todo-view-select option[value="week"] {
        display: none;
    }

    /* Force hiding if selected (handled in JS, but CSS helps) */

    .calendar-month-grid {
        font-size: 0.75rem;
    }

    .calendar-day {
        min-height: 60px;
        padding: 0.25rem;
    }

    .day-number {
        margin-bottom: 0.25rem;
    }

    .calendar-event {
        font-size: 0.65rem;
        padding: 1px 4px;
    }

    /* Week View Scrollable on Mobile */
    .calendar-week-grid {
        overflow-x: auto;
        min-width: 100%;
        grid-template-columns: repeat(7, minmax(100px, 1fr));
    }

    /* Customer Selector Mobile */
    .customer-selector-grid {
        grid-template-columns: 1fr;
        /* Single column */
    }

    .customer-selector-card {
        padding: 0.75rem;
    }

    /* Day View Mobile */
    .todo-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .todo-header {
        width: 100%;
    }

    .todo-meta {
        width: 100%;
        justify-content: space-between;
        font-size: 0.75rem;
        padding-top: 0.5rem;
        border-top: 1px solid var(--color-border);
    }

    /* Hide main toggle when menu is open to prevent double X */
    #mobile-menu-toggle.active {
        display: none;
    }

    /* Hide redundant Theme Toggle in Nav List on Mobile */
    .nav-link#theme-toggle {
        display: none;
    }

    /* Mobile To-Do Details Actions */
    .todo-details-actions {
        flex-direction: column;
        gap: 1rem;
    }

    .todo-action-group {
        flex-direction: column;
        width: 100%;
    }

    .todo-details-actions button {
        width: 100%;
        justify-content: center;
    }
}

/* Base Styles for To-Do Actions (Desktop) */
.todo-details-actions {
    margin-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
}

.todo-action-group {
    display: flex;
    gap: 0.5rem;
}

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

/* ========================================= */
/* FINAL FIX: FORCE HAMBURGER MENU GLOBALLY  */
/* ========================================= */

/* 0. Body Scroll Lock (Works with JS) */
body.menu-open {
    overflow: hidden !important;
    position: fixed !important;
    /* Force lock on iOS */
    width: 100% !important;
}

/* 1. Ensure Nav Links are a Full Screen Overlay */
.nav-links {
    display: none !important;
    /* Hidden until active */
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100% !important;
    height: 100vh !important;
    height: 100dvh !important;
    /* Mobile viewport fix */
    flex-direction: column !important;
    background-color: var(--color-bg-primary) !important;
    z-index: 10001 !important;
    padding: 0 !important;
    border: none !important;
    overflow-y: auto !important;
    overscroll-behavior: none !important;
    /* Fix: Prevent overscroll/rubber-banding */
    -webkit-overflow-scrolling: touch !important;
}

/* 2. Show Menu when Active */
.nav-links.active {
    display: flex !important;
}

/* 3. Ensure Hamburger Button is Visible and Correctly Styled */
#mobile-menu-toggle {
    /* Fix: Use ID for specificity */
    display: flex !important;
    flex-direction: column !important;
    /* Fix: Prevent collapsing */
    justify-content: space-between !important;
    width: 30px !important;
    height: 21px !important;
    background: transparent !important;
    border: none !important;
    padding: 0 !important;
    cursor: pointer !important;
    z-index: 10002 !important;
    gap: 0 !important;
    /* Ensure no gap interferes with justify-content */
}

/* Ensure Hamburger Bars are Visible */
#mobile-menu-toggle span {
    /* Fix: Use ID for specificity */
    display: block !important;
    width: 100% !important;
    height: 3px !important;
    background-color: var(--color-text-primary) !important;
    border-radius: 3px !important;
    transition: all 0.3s ease !important;
    margin: 0 !important;
    /* Reset margins */
}

/* 4. Ensure Header Theme Toggle is Visible Globally */
.theme-toggle-btn {
    display: flex !important;
}

/* 5. Ensure Mobile Header (inside menu) is Visible Globally */
.mobile-nav-header {
    display: flex !important;
}

/* 6. Hide Main Hamburger when Menu is Open */
#mobile-menu-toggle.active {
    display: none !important;
}

/* 7. Hide Redundant Mobile Theme Toggle Link */
#theme-toggle-redundant {
    display: none !important;
}

/* 8. Light Mode Colors (White Background & Transparent Links) */
body.light-mode .nav-links {
    background-color: #ffffff !important;
}

body.light-mode .mobile-nav-header {
    background-color: #f8fafc !important;
    border-bottom-color: #e2e8f0 !important;
}

/* Modernize Nav Links: Transparent by default */
body.light-mode .nav-link {
    color: #475569 !important;
    width: 100% !important;
    justify-content: flex-start !important;
    padding: 1rem 1.5rem !important;
    background-color: transparent !important;
    /* Fix: Transparent background */
    border: none !important;
    /* Remove border */
}

body.light-mode .nav-link:hover {
    background-color: #f1f5f9 !important;
    color: #1e293b !important;
}

body.light-mode .nav-link.active {
    background: #f1f5f9 !important;
    color: var(--color-primary) !important;
    border: none !important;
    box-shadow: none !important;
    font-weight: 600 !important;
}

body.light-mode .nav-link .nav-icon {
    color: inherit !important;
}

/* Dark Mode / Default Modernization */
.nav-link {
    background: transparent !important;
    /* Fix: Remove gray background globally */
    border: none !important;
}

.nav-link:hover {
    background: var(--color-bg-tertiary) !important;
}

.nav-link.active {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%) !important;
    color: white !important;
}