/* ===== CSS RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors */
    --color-bg-primary: #0f0f0f;
    --color-bg-secondary: #1a1a1a;
    --color-bg-tertiary: #242424;
    --color-bg-card: #1e1e1e;
    --color-bg-hover: #2a2a2a;

    --color-gold: #f4b41a;
    --color-gold-dark: #d49a15;
    --color-gold-light: #ffd54f;

    --color-text-primary: #ffffff;
    --color-text-secondary: #b0b0b0;
    --color-text-tertiary: #808080;

    --color-success: #4caf50;
    --color-warning: #ff9800;
    --color-error: #f44336;
    --color-info: #2196f3;

    --color-mpesa: #00d13b;
    --color-cash: #f4b41a;
    --color-card: #2196f3;

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

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-gold: 0 4px 20px rgba(244, 180, 26, 0.3);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #0f0f0f 0%, #1a1a1a 100%);
    color: var(--color-text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* ===== AUTHENTICATION PAGE ===== */
.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: var(--spacing-md);
    background:
        radial-gradient(circle at 20% 50%, rgba(244, 180, 26, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(244, 180, 26, 0.05) 0%, transparent 50%),
        linear-gradient(135deg, #0f0f0f 0%, #1a1a1a 100%);
}

.auth-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    max-width: 480px;
    width: 100%;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(244, 180, 26, 0.1);
    animation: fadeInUp 0.6s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.logo-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.app-logo {
    max-width: 250px;
    height: auto;
    margin-bottom: var(--spacing-sm);
    filter: drop-shadow(0 0 5px rgba(244, 180, 26, 0.2));
}

.logo-container h1 {
    font-size: 1.8rem;
    font-weight: 800;
    letter-spacing: 1px;
    color: var(--color-text-primary);
}

.highlight {
    color: var(--color-gold);
}

.auth-subtitle {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
}

.auth-form h2 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
    font-weight: 700;
}

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

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

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--color-bg-tertiary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    font-size: 0.95rem;
    transition: all var(--transition-normal);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-gold);
    box-shadow: 0 0 0 3px rgba(244, 180, 26, 0.1);
}

.form-group input::placeholder {
    color: var(--color-text-tertiary);
}

.btn-primary {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-dark) 100%);
    color: #000;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(244, 180, 26, 0.4);
}

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

.form-toggle {
    text-align: center;
    margin-top: var(--spacing-md);
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

.form-toggle a {
    color: var(--color-gold);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.form-toggle a:hover {
    color: var(--color-gold-light);
}

/* ===== APP HEADER ===== */
.app-header {
    background: var(--color-bg-card);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-lg);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
}

.mobile-toggle {
    display: none;
    padding: 0.5rem;
    background: transparent;
    border: none;
    color: var(--color-gold);
    cursor: pointer;
    border-radius: var(--radius-sm);
}

.mobile-toggle:hover {
    background: var(--color-bg-hover);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.app-logo-small {
    height: 40px;
    width: auto;
}

.header-nav {
    display: flex;
    gap: var(--spacing-xs);
    flex: 1;
    justify-content: center;
}

.nav-btn {
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
    position: relative;
}

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

.nav-btn.active {
    color: #000;
    background: var(--color-gold);
}

.nav-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--color-gold);
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

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

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-dark) 100%);
    color: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
}

.btn-logout {
    padding: 0.625rem;
    background: var(--color-bg-tertiary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-logout:hover {
    background: var(--color-error);
    color: #fff;
    border-color: var(--color-error);
}

/* ===== MAIN CONTENT ===== */
.app-main {
    padding: var(--spacing-lg);
    max-width: 1600px;
    margin: 0 auto;
}

.tab-content {
    display: none;
    animation: fadeIn 0.4s ease;
}

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

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

.tab-header h2 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-text-primary);
}

.date-display {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 0.75rem 1.25rem;
    background: var(--color-bg-card);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    font-weight: 600;
}

/* ===== TRANSACTION FORM ===== */
.transaction-form {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border: 1px solid rgba(244, 180, 26, 0.1);
    box-shadow: var(--shadow-md);
}

.form-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.form-header svg {
    color: var(--color-gold);
}

.form-header h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

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

.btn-record-sale {
    width: auto;
    margin-left: auto;
    padding: 0.875rem 2rem;
}

/* ===== TABLES ===== */
.transactions-section {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

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

.section-header h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.btn-export {
    padding: 0.625rem 1.25rem;
    background: var(--color-bg-tertiary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.btn-export:hover {
    background: var(--color-gold);
    color: #000;
    border-color: var(--color-gold);
}

.table-container {
    overflow-x: auto;
    border-radius: var(--radius-md);
}

.sales-table {
    width: 100%;
    border-collapse: collapse;
}

.sales-table thead {
    background: var(--color-bg-tertiary);
}

.sales-table th {
    padding: 1rem;
    text-align: left;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sales-table td {
    padding: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--color-text-primary);
    font-size: 0.95rem;
}

.sales-table tbody tr {
    transition: background var(--transition-fast);
}

.sales-table tbody tr:hover {
    background: var(--color-bg-hover);
}

.empty-state {
    text-align: center;
    color: var(--color-text-tertiary);
    font-style: italic;
}

.payment-badge {
    display: inline-flex;
    padding: 0.375rem 0.875rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.payment-badge.mpesa {
    background: rgba(0, 209, 59, 0.15);
    color: var(--color-mpesa);
}

.payment-badge.cash {
    background: rgba(244, 180, 26, 0.15);
    color: var(--color-cash);
}

.payment-badge.card {
    background: rgba(33, 150, 243, 0.15);
    color: var(--color-card);
}

.action-buttons {
    display: flex;
    gap: var(--spacing-xs);
}

.btn-icon {
    padding: 0.5rem;
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    background: var(--color-bg-hover);
    color: var(--color-text-primary);
}

.btn-icon.delete:hover {
    background: var(--color-error);
    color: #fff;
}

/* ===== REVENUE CARD ===== */
.revenue-card {
    background: linear-gradient(135deg, rgba(244, 180, 26, 0.1) 0%, rgba(244, 180, 26, 0.05) 100%);
    border: 2px solid var(--color-gold);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    box-shadow: var(--shadow-gold);
}

.revenue-icon {
    width: 80px;
    height: 80px;
    background: var(--color-gold);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #000;
    flex-shrink: 0;
}

.revenue-info {
    flex: 1;
}

.revenue-label {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-text-secondary);
    letter-spacing: 1px;
    margin-bottom: 0.25rem;
}

.revenue-note {
    font-size: 0.8rem;
    color: var(--color-text-tertiary);
}

.revenue-amount {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-xs);
}

.revenue-amount .currency {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text-secondary);
}

.revenue-amount .amount {
    font-size: 3rem;
    font-weight: 900;
    color: var(--color-gold);
    line-height: 1;
}

/* ===== SUMMARY CARDS ===== */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.summary-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: all var(--transition-normal);
}

.summary-card:hover {
    border-color: var(--color-gold);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.summary-card.large {
    grid-column: 1 / -1;
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.card-icon.gold {
    background: linear-gradient(135deg, var(--color-gold) 0%, var(--color-gold-dark) 100%);
    color: #000;
}

.card-icon.blue {
    background: linear-gradient(135deg, #2196f3 0%, #1976d2 100%);
    color: #fff;
}

.card-content {
    flex: 1;
}

.card-label {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.card-value {
    font-size: 2rem;
    font-weight: 900;
    color: var(--color-text-primary);
}

.card-value.large {
    font-size: 2.5rem;
    color: var(--color-gold);
}

/* ===== MONTH/YEAR SELECTORS ===== */
.month-selector,
.year-selector {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.month-input,
.year-input {
    padding: 0.75rem 1rem;
    background: var(--color-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.month-input:focus,
.year-input:focus {
    outline: none;
    border-color: var(--color-gold);
}

/* ===== INVENTORY STATS ===== */
.inventory-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.stat-card {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--color-gold);
}

.stat-value.warning {
    color: var(--color-warning);
}

/* ===== SEARCH BOX ===== */
.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-box svg {
    position: absolute;
    left: 1rem;
    color: var(--color-text-tertiary);
}

.search-box input {
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    background: var(--color-bg-tertiary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    font-size: 0.9rem;
    width: 300px;
    transition: all var(--transition-normal);
}

.search-box input:focus {
    outline: none;
    border-color: var(--color-gold);
    width: 350px;
}

/* ===== MODAL ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal.active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(244, 180, 26, 0.1);
    animation: slideUp 0.4s ease;
}

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

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

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

.modal-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.modal-close {
    padding: 0.5rem;
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

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

.modal-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
    margin-top: var(--spacing-lg);
}

.btn-secondary {
    padding: 0.875rem 1.5rem;
    background: var(--color-bg-tertiary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn-secondary:hover {
    background: var(--color-bg-hover);
    border-color: rgba(255, 255, 255, 0.2);
}

/* ===== LOADING OVERLAY ===== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--color-gold);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ===== TOAST NOTIFICATION ===== */
.toast {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    padding: 1rem 1.5rem;
    background: var(--color-bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    color: var(--color-text-primary);
    font-weight: 600;
    z-index: 10000;
    transform: translateY(150%);
    transition: transform var(--transition-normal);
    border-left: 4px solid var(--color-gold);
}

.toast.show {
    transform: translateY(0);
}

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

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

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

/* ===== GROWTH INDICATOR ===== */
.growth-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
}

.growth-indicator.positive {
    background: rgba(76, 175, 80, 0.15);
    color: var(--color-success);
}

.growth-indicator.negative {
    background: rgba(244, 67, 54, 0.15);
    color: var(--color-error);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .app-header {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .header-nav {
        display: none;
        /* Hide by default on smaller screens */
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-bg-card);
        flex-direction: column;
        padding: var(--spacing-md);
        border-bottom: 1px solid rgba(244, 180, 26, 0.1);
        box-shadow: var(--shadow-lg);
        gap: var(--spacing-xs);
        z-index: 999;
    }

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

    .nav-btn {
        width: 100%;
        text-align: left;
        padding: 1rem;
    }

    .nav-btn.active::after {
        display: none;
    }

    .mobile-toggle {
        display: block;
        order: 2;
    }

    .header-left {
        order: 1;
    }

    .header-right {
        order: 3;
    }

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

    .revenue-amount .amount {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .app-main {
        padding: var(--spacing-sm);
    }

    .tab-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .tab-header h2 {
        font-size: 1.5rem;
    }

    .transaction-form,
    .transactions-section {
        padding: var(--spacing-sm);
        margin-bottom: var(--spacing-sm);
    }

    .form-group input,
    .form-group select {
        font-size: 16px;
        /* Prevent zoom on iOS */
    }

    .revenue-card {
        flex-direction: column;
        text-align: center;
        padding: var(--spacing-md);
    }

    .revenue-icon {
        width: 60px;
        height: 60px;
    }

    .revenue-amount .amount {
        font-size: 1.8rem;
    }

    .search-box {
        width: 100%;
    }

    .search-box input {
        width: 100% !important;
    }

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

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

    /* Responsive Tables */
    .table-container {
        margin: 0 -10px;
        width: calc(100% + 20px);
        border-radius: 0;
    }

    .sales-table th,
    .sales-table td {
        padding: 0.75rem 0.5rem;
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .auth-card {
        padding: var(--spacing-lg);
    }

    .logo-container h1 {
        font-size: 1.4rem;
    }

    .header-left h1 {
        font-size: 1rem;
    }

    .nav-btn {
        padding: 0.625rem 1rem;
        font-size: 0.85rem;
    }

    .user-name {
        display: none;
    }
}

/* ===== SHOPPING CART ===== */
.customer-info-section {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-add-to-cart {
    width: auto;
    margin-left: auto;
    padding: 0.875rem 2rem;
}

.shopping-cart {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--color-gold);
}

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

.cart-header h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-gold);
}

.btn-clear-cart {
    padding: 0.5rem 1rem;
    background: var(--color-bg-tertiary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn-clear-cart:hover {
    background: var(--color-error);
    color: #fff;
    border-color: var(--color-error);
}

.cart-items {
    margin-bottom: var(--spacing-md);
}

.cart-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm);
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-xs);
    transition: all var(--transition-fast);
}

.cart-item:hover {
    background: var(--color-bg-hover);
}

.cart-item-info {
    flex: 1;
}

.cart-item-name {
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.25rem;
}

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

.cart-item-price {
    font-weight: 700;
    color: var(--color-gold);
    margin: 0 var(--spacing-md);
}

.btn-remove-item {
    padding: 0.5rem;
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.btn-remove-item:hover {
    background: var(--color-error);
    color: #fff;
}

.cart-total {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(244, 180, 26, 0.1) 0%, rgba(244, 180, 26, 0.05) 100%);
    border: 1px solid var(--color-gold);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.cart-total span {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.total-amount {
    font-size: 1.5rem !important;
    color: var(--color-gold) !important;
}

/* ===== RECEIPT MODAL ===== */
.receipt-modal-content {
    max-width: 500px;
}

.receipt-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.receipt-content {
    background: #fff;
    color: #000;
    padding: var(--spacing-lg);
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    max-height: 70vh;
    overflow-y: auto;
}

.receipt-header {
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.receipt-logo-img {
    max-width: 150px;
    height: auto;
    margin-bottom: var(--spacing-sm);
}

.receipt-header h2 {
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 0.25rem;
}

.receipt-header p {
    font-size: 0.9rem;
    margin: 0.25rem 0;
}

.receipt-divider {
    margin: var(--spacing-sm) 0;
    color: #666;
}

.receipt-info p,
.receipt-totals p {
    margin: 0.5rem 0;
    font-size: 0.95rem;
}

.receipt-table {
    width: 100%;
    margin: var(--spacing-sm) 0;
    border-collapse: collapse;
}

.receipt-table th {
    text-align: left;
    padding: 0.5rem 0;
    border-bottom: 1px solid #000;
    font-weight: 700;
}

.receipt-table td {
    padding: 0.5rem 0;
    border-bottom: 1px dashed #ccc;
}

.receipt-table th:last-child,
.receipt-table td:last-child {
    text-align: right;
}

.receipt-total {
    font-size: 1.2rem !important;
    font-weight: 800 !important;
    margin: var(--spacing-md) 0 !important;
}

.receipt-footer {
    text-align: center;
    margin-top: var(--spacing-md);
}

.receipt-footer p {
    margin: 0.5rem 0;
}

.receipt-small {
    font-size: 0.75rem;
    color: #666;
}

/* ===== PRINT STYLES ===== */
@media print {
    body * {
        visibility: hidden;
    }

    #receipt-content,
    #receipt-content * {
        visibility: visible;
    }

    #receipt-content {
        position: absolute;
        left: 0;
        top: 0;
        width: 80mm;
        background: #fff;
        color: #000;
        padding: 10mm;
    }

    .receipt-content {
        max-height: none;
        overflow: visible;
    }

    @page {
        size: 80mm auto;
        margin: 0;
    }
}

/* ===== CUSTOM SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

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

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

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