:root {
    --green-dark: #138043;
    --green-light: #50B848;
    --blue-primary: #009FE3;
    --blue-dark: #007BB5;
    --bg-light: #F7F7F7;
    --bg-white: #FFFFFF;
    --text-dark: #1a1a2e;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --shadow: 0 4px 24px rgba(19, 128, 67, 0.08);
    --shadow-lg: 0 12px 40px rgba(0, 159, 227, 0.12);
    --radius: 12px;
    --radius-sm: 8px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --transition: 0.25s ease;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    color: var(--text-dark);
    background: var(--bg-light);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--blue-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--green-dark); }

img { max-width: 100%; height: auto; display: block; }

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.site-header {
    background: var(--bg-white);
    box-shadow: 0 1px 0 var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-dark);
    font-weight: 700;
    font-size: 1rem;
}

.logo img { width: 44px; height: 44px; object-fit: contain; }
.logo span { display: none; }

@media (min-width: 768px) {
    .logo span { display: inline; }
}

.nav-menu {
    display: flex;
    gap: 8px;
    align-items: center;
}

.nav-menu a {
    color: var(--text-dark);
    font-weight: 500;
    font-size: 0.925rem;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}

.nav-menu a:hover {
    background: rgba(19, 128, 67, 0.08);
    color: var(--green-dark);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    border-radius: 2px;
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-menu {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        padding: 16px;
        box-shadow: var(--shadow);
        border-top: 1px solid var(--border);
    }
    .nav-menu.open { display: flex; }
    .nav-menu a { width: 100%; text-align: center; }
}

.hero {
    background: linear-gradient(135deg, var(--green-dark) 0%, var(--blue-primary) 100%);
    color: white;
    padding: 80px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: rgba(255,255,255,0.05);
    border-radius: 50%;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
    position: relative;
}

@media (min-width: 768px) {
    .hero .container { grid-template-columns: 1fr 1fr; }
}

.hero-content h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 1.125rem;
    opacity: 0.92;
    margin-bottom: 32px;
    max-width: 520px;
}

.hero-logo {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-logo img {
    width: 220px;
    height: 220px;
    object-fit: contain;
    filter: drop-shadow(0 8px 32px rgba(0,0,0,0.2));
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    font-family: var(--font);
}

.btn-primary {
    background: var(--bg-white);
    color: var(--green-dark);
}

.btn-primary:hover {
    background: var(--green-light);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-outline {
    background: transparent;
    color: white;
    border-color: rgba(255,255,255,0.6);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.15);
    border-color: white;
    color: white;
}

.btn-green {
    background: var(--green-dark);
    color: white;
}

.btn-green:hover {
    background: var(--green-light);
    color: white;
    transform: translateY(-2px);
}

.btn-blue {
    background: var(--blue-primary);
    color: white;
}

.btn-blue:hover {
    background: var(--blue-dark);
    color: white;
}

.btn-sm { padding: 8px 16px; font-size: 0.85rem; }
.btn-danger { background: #dc2626; color: white; }
.btn-danger:hover { background: #b91c1c; color: white; }

section { padding: 80px 0; }

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-header h2 {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    color: var(--green-dark);
    margin-bottom: 12px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto;
}

.section-header .divider {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--green-dark), var(--blue-primary));
    border-radius: 2px;
    margin: 16px auto 0;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 32px;
    box-shadow: var(--shadow);
    transition: all var(--transition);
    border: 1px solid var(--border);
}

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

.card-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.card-icon.green { background: rgba(19, 128, 67, 0.1); }
.card-icon.blue { background: rgba(0, 159, 227, 0.1); }

.card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.card p { color: var(--text-muted); font-size: 0.95rem; }

.about-section { background: var(--bg-white); }

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    align-items: center;
}

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

.about-text h2 {
    font-size: 2rem;
    color: var(--green-dark);
    margin-bottom: 20px;
}

.about-text p {
    color: var(--text-muted);
    margin-bottom: 16px;
    font-size: 1.05rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 32px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
}

.stat-item strong {
    display: block;
    font-size: 1.75rem;
    color: var(--blue-primary);
    font-weight: 700;
}

.stat-item span {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.about-image {
    display: flex;
    justify-content: center;
}

.about-image img {
    width: 280px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
}

.marketplaces-section {
    background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-white) 100%);
}

.marketplace-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
}

.marketplace-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 40px;
    text-align: center;
    box-shadow: var(--shadow);
    border-top: 4px solid var(--blue-primary);
}

.marketplace-card.amazon { border-top-color: #FF9900; }
.marketplace-card.mercado-livre { border-top-color: #FFE600; }

.marketplace-card h3 {
    font-size: 1.35rem;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.marketplace-card p {
    color: var(--text-muted);
    margin-bottom: 24px;
}

.contact-section { background: var(--bg-white); }

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
}

@media (min-width: 768px) {
    .contact-grid { grid-template-columns: 1fr 1.2fr; }
}

.contact-info h2 {
    font-size: 2rem;
    color: var(--green-dark);
    margin-bottom: 16px;
}

.contact-info p { color: var(--text-muted); margin-bottom: 32px; }

.contact-item {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    align-items: flex-start;
}

.contact-item-icon {
    width: 44px;
    height: 44px;
    background: rgba(19, 128, 67, 0.1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-item strong { display: block; margin-bottom: 4px; }
.contact-item span { color: var(--text-muted); font-size: 0.95rem; }

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

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 6px;
    font-size: 0.9rem;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font);
    font-size: 0.95rem;
    transition: border-color var(--transition);
    background: var(--bg-white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--blue-primary);
    box-shadow: 0 0 0 3px rgba(0, 159, 227, 0.15);
}

.form-group textarea { resize: vertical; min-height: 120px; }

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

@media (min-width: 576px) {
    .form-row.cols-2 { grid-template-columns: 1fr 1fr; }
    .form-row.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
}

.form-card {
    background: var(--bg-light);
    padding: 32px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.alert {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
    font-size: 0.95rem;
    font-weight: 500;
}

.alert-success { background: rgba(80, 184, 72, 0.12); color: #166534; border: 1px solid rgba(80, 184, 72, 0.3); }
.alert-error { background: rgba(220, 38, 38, 0.08); color: #991b1b; border: 1px solid rgba(220, 38, 38, 0.2); }
.alert-info { background: rgba(0, 159, 227, 0.08); color: #0369a1; border: 1px solid rgba(0, 159, 227, 0.2); }

.site-footer {
    background: var(--green-dark);
    color: rgba(255,255,255,0.85);
    padding-top: 60px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    padding-bottom: 40px;
}

.footer-logo { width: 60px; margin-bottom: 16px; }

.footer-brand p { font-size: 0.9rem; line-height: 1.7; }

.site-footer h4 {
    color: white;
    font-size: 1rem;
    margin-bottom: 16px;
}

.site-footer ul { list-style: none; }
.site-footer ul li { margin-bottom: 8px; font-size: 0.9rem; }
.site-footer a { color: rgba(255,255,255,0.75); }
.site-footer a:hover { color: white; }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.15);
    padding: 20px 0;
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.6);
}

.admin-body {
    display: flex;
    min-height: 100vh;
    background: var(--bg-light);
}

.admin-sidebar {
    width: 260px;
    background: var(--green-dark);
    color: white;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 200;
    transition: transform var(--transition);
}

.admin-sidebar-header {
    padding: 24px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    gap: 12px;
}

.admin-sidebar-header img { width: 40px; }
.admin-sidebar-header span { font-weight: 700; font-size: 0.95rem; }

.admin-nav { padding: 16px 12px; flex: 1; overflow-y: auto; }

.admin-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: rgba(255,255,255,0.8);
    border-radius: var(--radius-sm);
    margin-bottom: 4px;
    font-size: 0.925rem;
    font-weight: 500;
    transition: all var(--transition);
}

.admin-nav a:hover,
.admin-nav a.active {
    background: rgba(255,255,255,0.12);
    color: white;
}

.admin-nav-icon { font-size: 1.1rem; width: 24px; text-align: center; }

.admin-sidebar-footer {
    padding: 16px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.admin-sidebar-footer .user-info {
    font-size: 0.85rem;
    color: rgba(255,255,255,0.7);
    margin-bottom: 12px;
    padding: 0 8px;
}

.admin-main {
    flex: 1;
    margin-left: 260px;
    min-height: 100vh;
}

.admin-topbar {
    background: var(--bg-white);
    padding: 16px 32px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.admin-topbar h1 {
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--text-dark);
}

.admin-content { padding: 32px; }

.admin-sidebar-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-dark);
}

@media (max-width: 992px) {
    .admin-sidebar { transform: translateX(-100%); }
    .admin-sidebar.open { transform: translateX(0); }
    .admin-main { margin-left: 0; }
    .admin-sidebar-toggle { display: block; }
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--green-dark);
}

.stat-card.blue { border-left-color: var(--blue-primary); }
.stat-card.green { border-left-color: var(--green-light); }

.stat-card .stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-top: 8px;
}

.table-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.table-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
    gap: 12px;
}

.table-header h2 { font-size: 1.1rem; font-weight: 600; }

.table-responsive { overflow-x: auto; }

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

table th,
table td {
    padding: 14px 20px;
    text-align: left;
    font-size: 0.9rem;
}

table th {
    background: var(--bg-light);
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
}

table tr { border-bottom: 1px solid var(--border); }
table tr:last-child { border-bottom: none; }
table tr:hover td { background: rgba(0, 159, 227, 0.03); }

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success { background: rgba(80, 184, 72, 0.15); color: var(--green-dark); }
.badge-danger { background: rgba(220, 38, 38, 0.1); color: #dc2626; }
.badge-info { background: rgba(0, 159, 227, 0.12); color: var(--blue-dark); }
.badge-warning { background: rgba(255, 153, 0, 0.15); color: #b45309; }

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

.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--green-dark) 0%, var(--blue-primary) 100%);
    padding: 24px;
}

.login-card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 48px 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

.login-card .logo-center {
    text-align: center;
    margin-bottom: 32px;
}

.login-card .logo-center img {
    width: 80px;
    margin: 0 auto 16px;
}

.login-card h1 {
    font-size: 1.5rem;
    text-align: center;
    color: var(--green-dark);
    margin-bottom: 8px;
}

.login-card .subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 32px;
}

.login-card .btn { width: 100%; }

.login-back {
    text-align: center;
    margin-top: 24px;
    font-size: 0.875rem;
}

.login-back a { color: var(--text-muted); }

.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-muted);
}

.empty-state p { margin-bottom: 16px; }

.page-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
}

.search-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 24px;
}

.search-bar input {
    flex: 1;
    padding: 10px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-family: var(--font);
}

.search-bar input:focus {
    outline: none;
    border-color: var(--blue-primary);
}