:root {--color-primary: #0046ad;--color-primary-dark: #003380;
    --color-accent: #598eff;--color-accent-dark: #1c51dc;
    --color-text-main: #1a1f2c;
    --color-text-muted: #64748b;
    --color-bg-body: #f8fafc;
    --color-bg-surface: #ffffff;
    --color-border: #e2e8f0;--color-success: #00c853;
    --color-danger: #d32f2f;
    --color-warning: #fbc02d;--spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-sm: 4rem;--container-width: 1200px;
    --header-height: 80px;
}* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    background-color: var(--color-bg-body);
    color: var(--color-text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s ease;
}
button {
    cursor: pointer;
    font-family: inherit;
}.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-sm { gap: var(--spacing-sm); }
.gap-xs { gap: var(--spacing-xs); }h1, h2, h3 {
    line-height: 1.2;
    color: var(--color-text-main);
    font-weight: 800;
}
h1 { font-size: 3.5rem; letter-spacing: -0.02em; }
h2 { font-size: 2.25rem; letter-spacing: -0.01em; }
h3 { font-size: 1.25rem; font-weight: 700; }
h3#modal-title { font-size: 1.25rem; }
p { color: var(--color-text-muted); }.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 6px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
}
.btn-primary {
    background-color: var(--color-primary);
    color: white;
    box-shadow: 0 4px 6px rgba(0, 70, 173, 0.2);
}
.btn-primary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 12px rgba(0, 70, 173, 0.3);
}
.btn-accent {
    background-color: var(--color-accent);
    color: white;
    box-shadow: 0 4px 6px rgba(0, 200, 83, 0.2);
}
.btn-accent:hover {
    background-color: var(--color-accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 12px rgba(0, 200, 83, 0.3);
}
.btn-outline {
    background-color: transparent;
    border-color: var(--color-border);
    color: var(--color-text-main);
}
.btn-outline:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background-color: rgba(0, 70, 173, 0.05);
}
.btn-cta-small {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--header-height);
    display: flex;
    align-items: center;
}
.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}
.brand-area {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}
.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-primary);
}
.logo span.material-icons-round {
    font-size: 2rem;
    color: var(--color-accent);
}
.brand-divider {
    width: 1px;
    height: 24px;
    background-color: var(--color-border);
    display: none;
}
.brand-tagline {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-weight: 500;
    display: none;
}
@media (min-width: 768px) {
    .brand-divider, .brand-tagline { display: block; }
}
.hero-section {
    padding: var(--spacing-sm) 0 var(--spacing-lg);
    position: relative;
    overflow: hidden;
    text-align: center;
}
.hero-bg-decoration {
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    height: 200%;
    background: radial-gradient(circle at center top, rgba(0, 70, 173, 0.08) 0%, transparent 60%);
    z-index: -1;
    pointer-events: none;
}
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 1rem;
    background-color: #e3f2fd;
    color: var(--color-primary);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
}
.badge-dot {
    width: 8px;
    height: 8px;
    background-color: var(--color-accent);
    border-radius: 50%;
    box-shadow: 0 0 0 2px rgba(0, 200, 83, 0.2);
}
.hero-title span.highlight {
    color: var(--color-accent);
    position: relative;
    white-space: nowrap;
}
.hero-title span.negative {
    color: var(--color-danger);
}
.hero-subtitle {
    font-size: 1.25rem;
    max-width: 700px;
    margin: var(--spacing-md) auto;
}
.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-md);
}
.simulator-section {
    padding: var(--spacing-md) 0 var(--spacing-sm);
}
.card {
    background: var(--color-bg-surface);
    border-radius: 12px;
    box-shadow: 0 10px 40px -10px rgba(0,0,0,0.08);
    border: 1px solid var(--color-border);
    overflow: hidden;
}
.card-header {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
    background-color: #f8fafc;
    display: flex;
    align-items: center;
    gap: 1rem;
}
.icon-box {
    width: 40px;
    height: 40px;
    background-color: #e3f2fd;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
}
.card-body {
    padding: var(--spacing-md);
}.form-grid {
    display: grid;
    /* Default for Mobile: 1 column */
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}
.form-group label {
    display: block;
    margin: 1rem 0;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--color-text-main);
}
.input-wrapper {
    position: relative;
}
.input-prefix {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-muted);
    font-size: 0.875rem;
    pointer-events: none;
}
.form-input {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 2.5rem;border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.2s;
    background-color: #fff;
    color: var(--color-text-main);
    font-family: inherit;
}
select.form-input {
    padding-left: 1rem;appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1rem;
}
.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 70, 173, 0.1);
}
.simulator-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
}.results-container {
    background-color: #f1f5f9;
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-md);
}
.results-title {
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}
.results-badge {
    font-size: 0.75rem;
    font-weight: normal;
    background-color: #e2e8f0;
    padding: 0.1rem 0.5rem;
    border-radius: 4px;
    color: var(--color-text-muted);
}
.table-responsive {
    overflow-x: auto;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    background: white;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}
table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}
th {
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    font-weight: 700;
    color: var(--color-text-muted);
    background-color: #f8fafc;
    padding: 1rem 0.5rem;
    border-bottom: 2px solid var(--color-border);
    text-align: center;
    vertical-align: top; /* Standardized to top for consistent logo base if badges exist */
}
th:first-child {
    text-align: left;
    position: sticky;
    left: 0;
    z-index: 10;
    background-color: #f8fafc;
    border-right: 1px solid var(--color-border);
    width: 140px;
}
.marketplace-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 0.35rem;
    color: var(--color-text-main);
    min-height: 80px; /* Forces all headers to same height */
    padding-top: 5px;
}
.marketplace-logo {
    height: 32px; /* Standardize logo height */
    width: auto;
    object-fit: contain;
}
td {
    padding: 1rem;
    border-bottom: 1px solid var(--color-border);
    text-align: center;
    color: var(--color-text-muted);
    white-space: nowrap;
}
td:first-child {
    font-weight: 600;
    color: var(--color-text-main);
    text-align: left;
    position: sticky;
    left: 0;
    background-color: white;
    border-right: 1px solid var(--color-border);
}
tr:last-child td { border-bottom: none; }tr.profit-row td {
    background-color: #f0fdf4;
    font-weight: 700;
    color: var(--color-text-main);
    border-top: 2px solid var(--color-border);
    border-bottom: 2px solid var(--color-border);
    font-size: 1rem;
}
tr.profit-row td:first-child {
    background-color: #f0fdf4;
}
td.positive { color: var(--color-success); }
td.negative { color: var(--color-danger); }
td.highlight-col {
    background-color: rgba(0, 70, 173, 0.03);
    color: var(--color-primary);
    font-weight: 600;
}
th.highlight-col-header {
    background-color: rgba(0, 70, 173, 0.05);
    color: var(--color-primary);
}
.disclaimer {
    font-size: 0.75rem;
    text-align: center;
    margin-top: 1rem;
    color: var(--color-text-muted);
    font-style: italic;
}.features-section {
    padding: var(--spacing-sm) 0;
    background-color: white;
}
.features-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}
.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

@media (min-width: 678px) {
    .features-grid { 
        grid-template-columns: repeat(2, 1fr) !important; 
    }
}
.feature-card {
    padding: 2rem;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    transition: all 0.3s ease;
    height: 100%;
}
.feature-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px -10px rgba(0, 70, 173, 0.15);
}
.feature-icon {
    width: 48px;
    height: 48px;
    background-color: rgba(0, 70, 173, 0.1);
    color: var(--color-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease;
}
.feature-card:hover .feature-icon {
    transform: scale(1.1);
    background-color: var(--color-primary);
    color: white;
}
.feature-title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}
.feature-desc {
    font-size: 0.95rem;
    line-height: 1.6;
}@media (min-width: 992px) {
    .feature-card.wide {
        grid-column: span 2;
        display: flex;
        align-items: center;
        gap: 2rem;
    }
    .feature-card.wide .feature-icon {
        margin-bottom: 0;
        flex-shrink: 0;
    }
}.cta-section {
    padding: var(--spacing-sm) 0;
    background-color: #0f172a;color: white;
    text-align: center;
    position: relative;
}
.cta-section h2 { color: white; }
.cta-section p { color: #94a3b8; }
.cta-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}
.cta-bg-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.9), rgba(0, 70, 173, 0.3));
    z-index: 1;
}footer {
    background-color: #fff;
    padding: var(--spacing-lg) 0 var(--spacing-md);
    border-top: 1px solid var(--color-border);
}
.footer-top {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    gap: 2rem;
}
.footer-links {
    display: flex;
    gap: 2rem;
}
.footer-links a {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    font-weight: 500;
}
.footer-links a:hover {
    color: var(--color-primary);
}
.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    color: #94a3b8;
    font-size: 0.875rem;
}
.heart { color: var(--color-danger); vertical-align: middle; font-size: 1rem; }

/* =========================================
   RESPONSIVE LAYOUT SYSTEM
   ========================================= */

/* 1. Mobile Small (≤320px) */
@media (max-width: 320px) {
    :root { --container-width: 100%; --spacing-md: 1.5rem; }
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    .hero-title { font-size: 1.75rem; }
    .btn { width: 100%; padding: 0.75rem 1rem; font-size: 0.9rem; }
    .brand-area { gap: 0.25rem; }
    .logo { font-size: 1rem; }
    .logo span.material-icons-round { font-size: 1.5rem; }
    .footer-links { flex-direction: column; gap: 0.5rem; }
    .marketplace-header { font-size: 0.7rem; }
    th, td { padding: 0.5rem; font-size: 0.75rem; }
    
    .form-grid { grid-template-columns: 1fr; }
}

/* 2. Mobile/Tablets Medium (321px - 767px) */
@media (min-width: 321px) and (max-width: 767px) {
    :root { --container-width: 100%; }
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    .hero-section { padding-top: var(--spacing-lg); }
    .header-content { justify-content: space-between; }
    .brand-area { gap: 0.5rem; }
    .btn { margin-bottom: 0.5rem; }
    .hero-actions { flex-direction: column; align-items: stretch; justify-content: center; }
    .footer-top, .footer-bottom { flex-direction: column; align-items: flex-start; gap: 1.5rem; }
    .footer-links { flex-direction: column; gap: 1rem; }
    
    .form-grid { grid-template-columns: 1fr; } 
}

/* 3. Tablets/Desktop Small (768px - 991px) */
@media (min-width: 768px) and (max-width: 991px) {
    :root { --container-width: 720px; }
    h1 { font-size: 3rem; }
    .brand-divider, .brand-tagline { display: block; }
    
    /* FormaGrid: 2 cols on tablets */
    .form-grid { grid-template-columns: repeat(2, 1fr); }
}

/* Custom Features Grid Breakpoint (≥678px as requested) */
@media (min-width: 678px) {
    .features-grid { grid-template-columns: repeat(2, 1fr); }
}

/* 4. Desktop Small (992px - 1199px) */
@media (min-width: 992px) and (max-width: 1199px) {
    :root { --container-width: 960px; }
    .feature-card.wide { grid-column: span 2; display: flex; align-items: center; gap: 2rem; }
    .feature-card.wide .feature-icon { margin-bottom: 0; flex-shrink: 0; }
    
    /* FormaGrid: 3 cols on small desktop */
    .form-grid { grid-template-columns: repeat(3, 1fr); }
}

/* 5. Desktop Large (≥1200px) */
@media (min-width: 1200px) {
    :root { --container-width: 1140px; }
    .hero-subtitle { font-size: 1.35rem; }
    
    /* FormaGrid: 4 cols on large desktop as requested */
    .form-grid { grid-template-columns: repeat(4, 1fr); }
}

/* Custom Utilities for Refactoring */
.header-btn-icon { margin-left: 6px; font-size: 1.1em; }
.text-primary { color: var(--color-primary); }
.text-primary-var { color: var(--color-primary); }
.text-menu-color { color: var(--color-text-main); }
.btn-icon-left { margin-right: 8px; }
.marketplace-icon-ml { color: #fbc02d; }
.marketplace-icon-shopee { color: #ef6c00; }
.marketplace-icon-amazon { color: #232f3e; }
.marketplace-icon-magalu { color: #0086ff; }
.marketplace-icon-shein { color: #000; }
.features-header-desc { font-size: 1.125rem; margin-top: 1rem; }
.cta-desc { margin: 1.5rem 0 2.5rem; font-size: 1.25rem; }
.btn-cta-large { font-size: 1.125rem; padding: 1rem 2.5rem; }
.btn-icon-right { margin-left: 10px; }
.footer-logo-text { color: var(--color-text-main); }
.footer-logo-icon { color: var(--color-primary); }

/* Educational Alerts */
.educational-alert {
    background: #fff3cd;
    color: #856404;
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1.5rem;
    border: 1px solid #ffeeba;
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.educational-alert .material-icons-round {
    font-size: 1.5rem;
    color: #856404;
}

.educational-alert h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: #856404;
}

.educational-alert p {
    font-size: 0.9rem;
    color: #856404;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.educational-alert p:last-child {
    margin-bottom: 0;
}

.educational-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.5rem 0;
    text-align: left;
}

.educational-item:not(:last-child) {
    border-bottom: 1px solid rgba(133, 100, 4, 0.1);
}

.educational-item .material-icons-round {
    font-size: 1.25rem;
    margin-top: 2px;
}

.educational-item h4 {
    margin-bottom: 2px;
}

.ml-badge {
    display: inline-block;
    font-size: 0.6rem;
    font-weight: 800;
    text-transform: uppercase;
    padding: 1px 4px;
    border-radius: 3px;
    margin-top: 0;
    line-height: 1.2;
    white-space: nowrap;
}

.ml-badge.classic {
    background: #e9ecef;
    color: #495057;
    border: 1px solid #dee2e6;
}

.ml-badge.premium {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
}

/* Helper Classes for Refactor */
.logo-img {
    height: 48px;
    width: auto;
}

.hidden {
    display: none !important;
}

.full-width {
    grid-column: 1 / -1 !important;
}

.form-help-text {
    font-size: 0.75rem;
    color: #666666;
    margin-top: 4px;
    display: block;
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 1;
    transition: opacity 0.3s ease;
}

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

.modal-content {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    max-width: 90%;
    width: 400px;
    text-align: center;
    transform: scale(1);
    transition: transform 0.3s ease;
}

.modal-overlay.hidden .modal-content {
    transform: scale(0.95);
}

.modal-content h3 {
    margin-bottom: 1rem;
    color: var(--color-text-main);
}

.modal-content p {
    margin-bottom: 1.5rem;
    color: var(--color-text-muted);
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Marketplace Logos */
.marketplace-logo,
.marketplace-header img {
    max-height: 48px; /* Bigger logos */
    width: auto;
    max-width: 100%;
    object-fit: contain;
    margin-bottom: 0.5rem;
    display: block;
}

/* Responsive Table Logo adjustments */
@media (max-width: 768px) {
    .marketplace-logo,
    .marketplace-header img {
        max-height: 32px;
    }
}

/* Responsive adjustments */
@media (max-width: 320px) {
   .logo-img { height: 32px; }
}

/* WhatsApp Floating Button */
.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 40px;
    right: 40px;
    background-color: #25d366;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 3px rgba(0,0,0,0.2);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    background-color: #128c7e;
    box-shadow: 2px 4px 8px rgba(0,0,0,0.3);
}

.whatsapp-icon {
    width: 35px;
    height: 35px;
}

@media (max-width: 768px) {
    .whatsapp-float {
        width: 50px;
        height: 50px;
        bottom: 20px;
        right: 20px;
    }
    .whatsapp-icon {
        width: 30px;
        height: 30px;
    }
}