:root {
    --primary: #1d4ed8;
    --primary-hover: #1e40af;
    --primary-light: #dbeafe;
    --text-muted: #6b7280;
    --border-color: #e5e7eb;
    --bg-muted: #f9fafb;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: #111827;
}

html {
    scroll-behavior: smooth;
}

section[id] {
    scroll-margin-top: 80px;
}

/* Buttons */
.btn-primary {
    background-color: var(--primary);
    border-color: var(--primary);
}
.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
}

/* Utility */
.text-primary-custom { color: var(--primary) !important; }
.bg-muted { background-color: var(--bg-muted); }
.text-muted-custom { color: var(--text-muted); }
.border-muted { border-color: var(--border-color) !important; }

/* Header */
.site-header {
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.8);
    border-bottom: 1px solid var(--border-color);
}

/* Nav links */
.nav-link-custom {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.15s;
}
.nav-link-custom:hover {
    color: #111827;
}

/* Hero icon circle */
.hero-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: var(--bg-muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Feature cards */
.feature-card {
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    text-align: center;
    padding: 1.5rem;
    background: #fff;
}
.feature-card .icon-wrap {
    width: 48px;
    height: 48px;
    border-radius: 0.5rem;
    background: var(--bg-muted);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.75rem;
}

/* Stats */
.stat-value {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--primary);
}

/* Connect steps */
.step-number {
    width: 48px;
    height: 48px;
    min-width: 48px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.125rem;
}

/* FAQ accordion */
.faq .accordion-button:not(.collapsed) {
    background: transparent;
    color: inherit;
    box-shadow: none;
}
.faq .accordion-button:focus {
    box-shadow: none;
}
.faq .accordion-button {
    font-weight: 500;
    padding: 1rem 0;
    background: transparent;
}
.faq .accordion-body {
    padding: 0 0 1rem 0;
}
.faq .accordion-item {
    border-left: 0;
    border-right: 0;
    border-radius: 0 !important;
    background: transparent;
}
.faq .accordion-item:first-child {
    border-top: 0;
}
.faq .accordion-item:last-child {
    border-bottom: 0;
}

/* Language toggle */
.lang-toggle {
    cursor: pointer;
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    padding: 0.25rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    background: transparent;
    transition: color 0.15s, border-color 0.15s;
}
.lang-toggle:hover {
    color: #111827;
    border-color: #9ca3af;
}

/* Footer links */
.footer-link {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.15s;
}
.footer-link:hover {
    color: #111827;
}