* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #667eea;
    --primary-dark: #5568d3;
    --secondary: #764ba2;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: rgba(30, 41, 59, 0.6);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border: rgba(148, 163, 184, 0.1);
    --shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 20px;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.03)" stroke-width="1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    z-index: -1;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding-bottom: 80px;
}

/* Header */
.header {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 24px 32px;
    margin-bottom: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
    animation: slideDown 0.5s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.logo {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.logo-text h1 {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.logo-tagline {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: none;
    letter-spacing: 0.5px;
}

.header-stats {
    display: flex;
    gap: 20px;
}

.stat-card {
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: 12px;
    padding: 12px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
}

.stat-card.profit {
    background: rgba(16, 185, 129, 0.1);
    border-color: rgba(16, 185, 129, 0.2);
}

.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

/* Navigation Tabs */
.tabs {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 8px;
    box-shadow: var(--shadow);
    animation: slideDown 0.6s ease;
}

.tab {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 14px 20px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.tab:hover {
    background: rgba(102, 126, 234, 0.1);
    color: var(--text-primary);
}

.tab.active {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

/* Content Sections */
.content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.content.active {
    display: block;
}

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

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.section-header h2 {
    font-size: 28px;
    font-weight: 700;
}

/* Buttons */
.btn {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}

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

.btn-secondary {
    background: var(--bg-secondary);
    box-shadow: none;
}

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #dc2626 100%);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
}

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

/* Search Bar */
.search-bar {
    position: relative;
    margin-bottom: 24px;
}

.search-bar svg {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.search-bar input {
    width: 100%;
    padding: 14px 16px 14px 48px;
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 15px;
    transition: all 0.3s ease;
}

.search-bar input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.product-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    transition: all 0.3s ease;
    animation: scaleIn 0.3s ease;
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3);
    border-color: var(--primary);
}

.product-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
}

.product-info h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}

.product-category {
    font-size: 13px;
    color: var(--text-secondary);
    background: rgba(102, 126, 234, 0.1);
    padding: 4px 12px;
    border-radius: 6px;
    display: inline-block;
}

.product-actions {
    display: flex;
    gap: 8px;
}

.icon-btn {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    width: 36px;
    height: 36px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.icon-btn:hover {
    background: rgba(102, 126, 234, 0.1);
    border-color: var(--primary);
    color: var(--primary);
}

.icon-btn.delete:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--danger);
    color: var(--danger);
}

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

.stat {
    background: rgba(102, 126, 234, 0.05);
    padding: 12px;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.stat-label-small {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.stat-value-small {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.stock-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-secondary);
    padding: 8px;
    border-radius: 8px;
}

.stock-btn {
    background: var(--primary);
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
}

.stock-btn:hover {
    background: var(--primary-dark);
    transform: scale(1.1);
}

.stock-btn:active {
    transform: scale(0.95);
}

.stock-display {
    flex: 1;
    text-align: center;
    font-size: 18px;
    font-weight: 700;
}

/* Sales Section */
.sales-container {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 24px;
}

.quick-sale-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    height: fit-content;
    position: sticky;
    top: 20px;
}

.quick-sale-card h3 {
    font-size: 20px;
    margin-bottom: 20px;
}

.quick-sale-card .form-group {
    margin-bottom: 16px;
}

.quick-sale-card .form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.counter-controls {
    display: flex;
    align-items: stretch;
    gap: 8px;
}

.counter-btn {
    background: var(--primary);
    border: none;
    color: white;
    min-width: 44px;
    height: 44px;
    border-radius: 10px;
    font-size: 20px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.counter-btn:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
}

.counter-btn:active {
    transform: scale(0.95);
}

.counter-input {
    flex: 1;
    text-align: center;
    font-size: 20px;
    font-weight: 700;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 10px 12px;
    border-radius: 10px;
    min-width: 0;
}

.counter-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* Remove spinner from number inputs */
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type="number"] {
    -moz-appearance: textfield;
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 15px;
    margin-bottom: 12px;
    transition: all 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.sales-history {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
}

.sales-history h3 {
    font-size: 20px;
    margin-bottom: 20px;
}

.sales-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-height: 600px;
    overflow-y: auto;
}

.sale-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px;
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 12px;
    transition: all 0.3s ease;
}

.sale-item:hover {
    border-color: var(--primary);
    transform: translateX(4px);
}

.sale-info h4 {
    font-size: 16px;
    margin-bottom: 8px;
}

.sale-details {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: var(--text-secondary);
}

.sale-meta {
    text-align: right;
}

.sale-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--success);
    margin-bottom: 4px;
}

.sale-date {
    font-size: 12px;
    color: var(--text-secondary);
}

.delete-sale {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--danger);
    padding: 8px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.delete-sale:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--danger);
}

/* Expenses Section */
.expenses-list {
    display: grid;
    gap: 12px;
}

.expense-item {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.expense-item:hover {
    border-color: var(--danger);
    transform: translateX(4px);
}

.expense-info h4 {
    font-size: 16px;
    margin-bottom: 8px;
}

.expense-details {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: var(--text-secondary);
}

.expense-badge {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    padding: 4px 12px;
    border-radius: 6px;
    font-size: 12px;
}

.expense-meta {
    display: flex;
    align-items: center;
    gap: 16px;
}

.expense-amount {
    font-size: 20px;
    font-weight: 700;
    color: var(--danger);
}

/* Dashboard Section */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.dashboard-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all 0.3s ease;
}

.dashboard-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3);
}

.card-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.card-icon.red {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.card-icon.blue {
    background: rgba(102, 126, 234, 0.1);
    color: var(--primary);
}

.card-icon.purple {
    background: rgba(118, 75, 162, 0.1);
    color: var(--secondary);
}

.card-content {
    flex: 1;
}

.card-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.card-value {
    font-size: 28px;
    font-weight: 700;
}

.profit-value {
    color: var(--success);
}

.chart-container {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
}

.chart-container h3 {
    font-size: 20px;
    margin-bottom: 20px;
}

.app-breakdown {
    display: grid;
    gap: 16px;
}

.app-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.app-bar-container {
    flex: 1;
    background: var(--bg-secondary);
    height: 40px;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
}

.app-bar {
    height: 100%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    display: flex;
    align-items: center;
    padding: 0 12px;
    font-weight: 600;
    font-size: 14px;
    transition: width 0.5s ease;
}

.app-amount {
    font-size: 18px;
    font-weight: 700;
    min-width: 80px;
    text-align: right;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 20px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 {
    font-size: 22px;
}

.close-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 32px;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
}

.close-btn:hover {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.modal-content form {
    padding: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.modal-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.modal-actions .btn {
    flex: 1;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 4px;
}

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

/* Responsive */
@media (max-width: 1024px) {
    .sales-container {
        grid-template-columns: 1fr;
    }

    .quick-sale-card {
        position: static;
    }
}

@media (max-width: 768px) {
    body {
        padding: 12px;
        padding-bottom: 80px;
    }

    .container {
        padding-bottom: 100px;
    }

    /* Header Mobile */
    .header {
        flex-direction: column;
        gap: 16px;
        padding: 20px;
        border-radius: 16px;
    }

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

    .logo svg {
        width: 36px;
        height: 36px;
    }

    .logo-text h1 {
        font-size: 22px;
    }

    .logo-tagline {
        font-size: 10px;
    }

    .header-stats {
        width: 100%;
        justify-content: space-between;
        gap: 12px;
    }

    .stat-card {
        flex: 1;
        padding: 12px 16px;
    }

    .stat-label {
        font-size: 10px;
    }

    .stat-value {
        font-size: 20px;
    }

    /* Tabs Mobile - Grid Style */
    .tabs {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
        padding: 6px;
        border-radius: 12px;
    }

    .tab {
        padding: 12px 8px;
        font-size: 13px;
        flex-direction: column;
        gap: 6px;
        border-radius: 10px;
    }

    .tab svg {
        width: 22px;
        height: 22px;
    }

    /* Section Headers Mobile */
    .section-header {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .section-header h2 {
        font-size: 24px;
    }

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

    .section-header > div {
        flex-direction: column;
        width: 100%;
        gap: 8px;
    }

    .section-header .form-input,
    .section-header .btn {
        width: 100%;
    }

    /* Search Bar Mobile */
    .search-bar {
        margin-bottom: 16px;
    }

    .search-bar input {
        padding: 12px 12px 12px 44px;
        font-size: 14px;
    }

    /* Products Grid Mobile */
    .products-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .product-card {
        padding: 16px;
        border-radius: 12px;
    }

    .product-info h3 {
        font-size: 16px;
    }

    .product-category {
        font-size: 11px;
        padding: 3px 10px;
    }

    .product-actions {
        gap: 6px;
    }

    .icon-btn {
        width: 40px;
        height: 40px;
        border-radius: 10px;
    }

    .product-stats {
        gap: 8px;
    }

    .stat {
        padding: 10px;
    }

    .stat-label-small {
        font-size: 11px;
    }

    .stat-value-small {
        font-size: 18px;
    }

    .stock-controls {
        padding: 6px;
    }

    .stock-btn {
        width: 36px;
        height: 36px;
        font-size: 16px;
    }

    .stock-display {
        font-size: 16px;
    }

    /* Sales Section Mobile */
    .sales-container {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .quick-sale-card {
        padding: 16px;
        border-radius: 12px;
    }

    .quick-sale-card h3 {
        font-size: 18px;
        margin-bottom: 16px;
    }

    .form-input {
        padding: 12px 14px;
        font-size: 14px;
        border-radius: 10px;
        margin-bottom: 10px;
    }

    .counter-btn {
        min-width: 48px;
        height: 48px;
        font-size: 22px;
    }

    .counter-input {
        font-size: 18px;
        padding: 12px;
    }

    .sales-history {
        padding: 16px;
        border-radius: 12px;
    }

    .sales-history h3 {
        font-size: 18px;
        margin-bottom: 16px;
    }

    .sales-list {
        gap: 10px;
        max-height: 500px;
    }

    .sale-item {
        padding: 14px;
        border-radius: 10px;
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .sale-info h4 {
        font-size: 15px;
    }

    .sale-details {
        flex-wrap: wrap;
        gap: 12px;
        font-size: 12px;
    }

    .sale-meta {
        display: flex;
        justify-content: space-between;
        align-items: center;
        text-align: left;
    }

    .sale-price {
        font-size: 18px;
    }

    .sale-date {
        font-size: 11px;
    }

    .delete-sale {
        position: absolute;
        top: 14px;
        right: 14px;
        padding: 6px;
    }

    .sale-item {
        position: relative;
        padding-right: 50px;
    }

    /* Expenses Mobile */
    .expenses-list {
        gap: 10px;
    }

    .expense-item {
        padding: 14px;
        border-radius: 10px;
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .expense-info h4 {
        font-size: 15px;
    }

    .expense-details {
        flex-wrap: wrap;
        gap: 10px;
        font-size: 12px;
    }

    .expense-badge {
        font-size: 11px;
        padding: 3px 10px;
    }

    .expense-meta {
        flex-direction: row;
        justify-content: space-between;
    }

    .expense-amount {
        font-size: 18px;
    }

    /* Dashboard Mobile */
    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: 12px;
        margin-bottom: 24px;
    }

    .dashboard-card {
        padding: 16px;
        border-radius: 12px;
        gap: 12px;
    }

    .card-icon {
        width: 48px;
        height: 48px;
    }

    .card-icon svg {
        width: 20px;
        height: 20px;
    }

    .card-label {
        font-size: 12px;
    }

    .card-value {
        font-size: 24px;
    }

    .chart-container,
    .profit-chart-container {
        padding: 16px;
        border-radius: 12px;
    }

    .chart-container h3,
    .profit-chart-container h3 {
        font-size: 18px;
        margin-bottom: 16px;
    }

    .app-breakdown {
        gap: 12px;
    }

    .app-item {
        gap: 12px;
    }

    .app-bar-container {
        height: 36px;
    }

    .app-bar {
        font-size: 12px;
        padding: 0 10px;
    }

    .app-amount {
        font-size: 16px;
        min-width: 70px;
    }

    #profitChart {
        height: 250px !important;
    }

    /* Modal Mobile */
    .modal-content {
        width: 95%;
        max-height: 85vh;
        border-radius: 16px;
    }

    .modal-header {
        padding: 16px;
    }

    .modal-header h3 {
        font-size: 18px;
    }

    .close-btn {
        width: 36px;
        height: 36px;
        font-size: 28px;
    }

    .modal-content form {
        padding: 16px;
    }

    .form-group {
        margin-bottom: 16px;
    }

    .form-group label {
        font-size: 13px;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .modal-actions {
        gap: 10px;
        margin-top: 20px;
    }

    .modal-actions .btn {
        padding: 12px 16px;
        font-size: 14px;
    }

    /* Buttons Mobile */
    .btn {
        padding: 12px 20px;
        font-size: 14px;
        border-radius: 10px;
    }

    .btn svg {
        width: 18px;
        height: 18px;
    }
}

/* Extra Mobile Optimization - Small Phones */
@media (max-width: 480px) {
    body {
        padding: 10px;
    }

    .header {
        padding: 16px;
    }

    .logo-text h1 {
        font-size: 20px;
    }

    .tabs {
        gap: 6px;
        padding: 5px;
    }

    .tab {
        padding: 10px 6px;
        font-size: 12px;
    }

    .tab svg {
        width: 20px;
        height: 20px;
    }

    .section-header h2 {
        font-size: 20px;
    }

    .product-card,
    .quick-sale-card,
    .sales-history,
    .expense-item,
    .dashboard-card,
    .chart-container,
    .profit-chart-container {
        padding: 14px;
    }

    .app-branding {
        bottom: 8px;
        left: 8px;
        right: 8px;
    }

    .branding-content {
        padding: 10px;
        gap: 10px;
    }

    .brand-badge {
        padding: 3px 8px;
        font-size: 10px;
    }

    .brand-text {
        font-size: 12px;
    }

    .dev-by {
        font-size: 10px;
    }

    .dev-name {
        font-size: 12px;
    }
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state svg {
    opacity: 0.3;
    margin-bottom: 16px;
}

.empty-state h3 {
    font-size: 18px;
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 14px;
}

/* Profit Chart */
.profit-chart-container {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    margin-top: 24px;
}

.profit-chart-container h3 {
    font-size: 20px;
    margin-bottom: 20px;
}

#profitChart {
    width: 100% !important;
    height: 300px !important;
}

/* App Branding */
.app-branding {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 100;
    animation: slideUp 0.5s ease 0.3s both;
}

.branding-content {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 10px 16px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.branding-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(102, 126, 234, 0.15);
    border: 1px solid rgba(102, 126, 234, 0.3);
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 11px;
    font-weight: 700;
    color: var(--primary);
}

.pulse-dot {
    width: 6px;
    height: 6px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.3);
    }
}

.brand-text {
    font-size: 13px;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.branding-right {
    display: flex;
    align-items: center;
    gap: 8px;
    padding-left: 20px;
    border-left: 1px solid var(--border);
}

.dev-by {
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.dev-link {
    display: flex;
    align-items: center;
    gap: 4px;
    text-decoration: none;
    padding: 4px 8px;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.dev-link:hover {
    background: rgba(102, 126, 234, 0.1);
}

.dev-name {
    font-size: 13px;
    font-weight: 700;
    color: var(--primary);
}

.dev-link svg {
    opacity: 0.5;
    transition: all 0.3s ease;
}

.dev-link:hover svg {
    opacity: 1;
    transform: translateX(2px) translateY(-2px);
}

/* Responsive Branding */
@media (max-width: 768px) {
    .app-branding {
        bottom: 10px;
        left: 10px;
        right: 10px;
        transform: none;
    }

    .branding-content {
        flex-direction: column;
        gap: 12px;
        padding: 12px;
    }

    .branding-right {
        padding-left: 0;
        padding-top: 12px;
        border-left: none;
        border-top: 1px solid var(--border);
    }
}