* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: system-ui, -apple-system, Segoe UI, sans-serif;
}

body {
    background: #f6f8fb;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: auto;
    padding: 0 16px;
}

/* HEADER */
.site-header {
    background: #0f3cc9;
    color: #fff;
}

.header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.logo {
    font-size: 20px;
    font-weight: 700;
}

.nav a {
    color: #fff;
    margin-left: 16px;
    text-decoration: none;
    font-size: 14px;
}

.login-btn {
    background: #fff;
    color: #0f3cc9 !important;
    padding: 6px 12px;
    border-radius: 6px;
}

/* HERO */
.hero {
    background: linear-gradient(135deg, #0f3cc9, #1e60ff);
    color: #fff;
    padding: 80px 0;
    text-align: center;
}

.hero h1 {
    font-size: 36px;
}

.hero p {
    margin-top: 10px;
    opacity: .9;
}

.hero-actions {
    margin-top: 25px;
}

.btn {
    padding: 12px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    margin: 0 6px;
    display: inline-block;
}

.btn.primary {
    background: #fff;
    color: #0f3cc9;
}

.btn.outline {
    border: 2px solid #fff;
    color: #fff;
}

/* SECTIONS */
.section {
    padding: 60px 0;
}

.section.gray {
    background: #eef2ff;
}

.section-title {
    text-align: center;
    margin-bottom: 30px;
    font-size: 26px;
}

/* COMPANIES */
.company-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
}

.company-card {
    background: #fff;
    padding: 18px;
    text-align: center;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,.05);
    font-weight: 600;
}

/* FEATURES */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
}

.feature-box {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 10px rgba(0,0,0,.05);
}

/* TOOLS */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.tool-card {
    background: #0f3cc9;
    color: #fff;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    text-decoration: none;
    font-weight: 600;
}

/* FOOTER */
.footer {
    background: #0b2aa6;
    color: #fff;
    padding: 30px 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
}

.footer a {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
}

/* UTIL */
.center {
    text-align: center;
    margin-top: 20px;
}

.link-btn {
    color: #0f3cc9;
    font-weight: 600;
    text-decoration: none;
}

.loading {
    text-align: center;
    color: #777;
}
.product-group {
    background: #fff;
    border-radius: 10px;
    margin-bottom: 16px;
    box-shadow: 0 4px 10px rgba(0,0,0,.05);
}

.group-header {
    padding: 14px 16px;
    font-weight: 700;
    cursor: pointer;
    background: #f0f4ff;
    border-radius: 10px 10px 0 0;
}

.variant-list {
    padding: 12px 16px;
}

.variant-item {
    padding: 6px 0;
    font-size: 14px;
    color: #333;
}

.hide {
    display: none;
}