/* =====================================================
   AI Site Builder — Front-end Site Styles
   ===================================================== */

:root {
    --aisb-primary:   #2563eb;
    --aisb-secondary: #1e40af;
    --aisb-accent:    #f59e0b;
    --aisb-text:      #1e293b;
    --aisb-muted:     #64748b;
    --aisb-bg:        #f8fafc;
    --aisb-white:     #ffffff;
    --aisb-radius:    12px;
    --aisb-shadow:    0 4px 24px rgba(0,0,0,.08);
}

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

.aisb-site {
    font-family: 'Segoe UI', Tahoma, Arial, sans-serif;
    color: var(--aisb-text);
    line-height: 1.7;
    font-size: 16px;
}

.aisb-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== HERO ===== */
.aisb-hero {
    background: linear-gradient(135deg, var(--aisb-primary) 0%, var(--aisb-secondary) 100%);
    color: #fff;
    padding: 100px 0 80px;
    text-align: center;
}

.aisb-hero-headline {
    font-size: clamp(28px, 5vw, 52px);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

.aisb-hero-sub {
    font-size: clamp(15px, 2vw, 20px);
    opacity: .88;
    max-width: 680px;
    margin: 0 auto 36px;
}

.aisb-hero-btns {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.aisb-btn-cta {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 700;
    font-size: 15px;
    text-decoration: none;
    transition: all .2s;
}

.aisb-btn-primary-cta {
    background: var(--aisb-accent);
    color: #1a1a1a;
}

.aisb-btn-primary-cta:hover {
    filter: brightness(1.08);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,.18);
}

.aisb-btn-secondary-cta {
    background: rgba(255,255,255,.15);
    color: #fff;
    border: 2px solid rgba(255,255,255,.5);
}

.aisb-btn-secondary-cta:hover {
    background: rgba(255,255,255,.25);
}

/* ===== SECTION SHARED ===== */
.aisb-site section {
    padding: 80px 0;
}

.aisb-section-title {
    font-size: clamp(22px, 3vw, 36px);
    font-weight: 700;
    text-align: center;
    margin-bottom: 48px;
    color: var(--aisb-text);
}

/* ===== ABOUT ===== */
.aisb-about {
    background: var(--aisb-white);
}

.aisb-about h2 {
    font-size: clamp(22px, 3vw, 36px);
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--aisb-primary);
}

.aisb-about-body {
    font-size: 17px;
    color: var(--aisb-muted);
    max-width: 760px;
}

/* ===== SERVICES ===== */
.aisb-services {
    background: var(--aisb-bg);
}

.aisb-services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 24px;
}

.aisb-service-card {
    background: var(--aisb-white);
    border-radius: var(--aisb-radius);
    padding: 32px 24px;
    text-align: center;
    box-shadow: var(--aisb-shadow);
    transition: transform .2s;
}

.aisb-service-card:hover { transform: translateY(-4px); }

.aisb-service-icon {
    font-size: 40px;
    display: block;
    margin-bottom: 16px;
}

.aisb-service-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--aisb-primary);
}

.aisb-service-card p {
    color: var(--aisb-muted);
    font-size: 14px;
}

/* ===== WHY US ===== */
.aisb-why {
    background: var(--aisb-white);
}

.aisb-why h2 {
    font-size: clamp(22px, 3vw, 36px);
    font-weight: 700;
    margin-bottom: 28px;
    color: var(--aisb-text);
}

.aisb-why-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}

.aisb-why-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 15px;
    color: var(--aisb-muted);
}

.aisb-check {
    color: var(--aisb-primary);
    font-weight: 700;
    font-size: 18px;
    flex-shrink: 0;
}

/* ===== TESTIMONIALS ===== */
.aisb-testimonials {
    background: var(--aisb-bg);
}

.aisb-testi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.aisb-testi-card {
    background: var(--aisb-white);
    border-radius: var(--aisb-radius);
    padding: 28px;
    box-shadow: var(--aisb-shadow);
    border-right: 4px solid var(--aisb-primary);
}

.aisb-site[dir="ltr"] .aisb-testi-card {
    border-right: none;
    border-left: 4px solid var(--aisb-primary);
}

.aisb-testi-text {
    font-size: 15px;
    color: var(--aisb-muted);
    font-style: italic;
    margin-bottom: 20px;
}

.aisb-testi-author strong {
    display: block;
    font-weight: 700;
    color: var(--aisb-text);
}

.aisb-testi-author span {
    font-size: 13px;
    color: var(--aisb-muted);
}

/* ===== FAQ ===== */
.aisb-faq {
    background: var(--aisb-white);
}

.aisb-faq-list {
    max-width: 760px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.aisb-faq-item {
    border: 1px solid #e2e8f0;
    border-radius: var(--aisb-radius);
    overflow: hidden;
}

.aisb-faq-item summary {
    padding: 18px 20px;
    font-weight: 600;
    cursor: pointer;
    font-size: 15px;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--aisb-text);
}

.aisb-faq-item summary::after {
    content: '+';
    font-size: 20px;
    color: var(--aisb-primary);
    flex-shrink: 0;
    margin-inline-start: 12px;
}

.aisb-faq-item[open] summary::after { content: '−'; }

.aisb-faq-item p {
    padding: 0 20px 18px;
    color: var(--aisb-muted);
    font-size: 14px;
}

/* ===== CTA SECTION ===== */
.aisb-cta-section {
    background: linear-gradient(135deg, var(--aisb-primary) 0%, var(--aisb-secondary) 100%);
    color: #fff;
    text-align: center;
}

.aisb-cta-section h2 {
    font-size: clamp(22px, 3vw, 36px);
    font-weight: 700;
    margin-bottom: 16px;
}

.aisb-cta-section p {
    font-size: 17px;
    opacity: .88;
    margin-bottom: 32px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== FOOTER ===== */
.aisb-footer {
    background: #0f172a;
    color: #94a3b8;
    padding: 40px 0;
    text-align: center;
}

.aisb-footer-tagline {
    font-size: 16px;
    color: #e2e8f0;
    margin-bottom: 8px;
}

.aisb-footer-copy {
    font-size: 13px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
    .aisb-site section { padding: 56px 0; }
    .aisb-hero { padding: 70px 0 56px; }
}