:root {
    --ai-bg: #070b14;
    --ai-bg2: #0d1224;
    --ai-card: rgba(14, 20, 40, 0.85);
    --ai-cyan: #00e5ff;
    --ai-violet: #7c3aed;
    --ai-pink: #ec4899;
    --ai-text: #e8edf8;
    --ai-muted: #8b9cb8;
    --ai-border: rgba(0, 229, 255, 0.18);
    --ai-glow: rgba(0, 229, 255, 0.35);
    --ai-radius: 14px;
    --ai-font: 'Inter', system-ui, sans-serif;
    --ai-display: 'Space Grotesk', var(--ai-font);
    --ai-header-h: 64px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--ai-font);
    font-size: 15px;
    color: var(--ai-text);
    background: var(--ai-bg);
    line-height: 1.6;
    overflow-x: clip;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--ai-cyan); text-decoration: none; }
a:hover { color: #fff; }
button, input, textarea, select { font: inherit; }

.ai-container { max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.ai-section { padding: 88px 0; position: relative; }
.ai-section--tight { padding-top: 48px; }
.ai-section-title {
    font-family: var(--ai-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin: 0 0 12px;
    letter-spacing: -.02em;
}
.ai-section-sub {
    text-align: center;
    color: var(--ai-muted);
    max-width: 640px;
    margin: 0 auto 48px;
    font-size: 1.05rem;
}

/* Header */
.ai-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(7, 11, 20, 0.92);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--ai-border);
}
.ai-header-inner {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 20px;
    min-height: var(--ai-header-h);
    display: flex;
    align-items: center;
    gap: 16px;
}
.ai-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--ai-text);
    text-decoration: none;
    flex-shrink: 0;
}
.ai-logo-icon {
    width: 38px; height: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--ai-cyan), var(--ai-violet));
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 16px;
}
.ai-logo-text {
    font-family: var(--ai-display);
    font-weight: 700;
    font-size: 1.05rem;
    line-height: 1.2;
}
.ai-logo-text small { display: block; font-size: 11px; color: var(--ai-muted); font-weight: 500; }
.ai-nav {
    display: none;
    gap: 4px;
    margin-left: auto;
}
.ai-nav a {
    color: var(--ai-muted);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    transition: color .2s, background .2s;
}
.ai-nav a:hover { color: var(--ai-cyan); background: rgba(0,229,255,.08); }
.ai-header-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }
.ai-lang { position: relative; }
.ai-lang-btn {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 12px;
    background: var(--ai-card);
    border: 1px solid var(--ai-border);
    border-radius: 10px;
    color: var(--ai-text);
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
}
.ai-lang-menu {
    position: absolute; top: calc(100% + 8px); right: 0;
    min-width: 170px;
    list-style: none; margin: 0; padding: 6px;
    background: var(--ai-bg2);
    border: 1px solid var(--ai-border);
    border-radius: 12px;
    box-shadow: 0 16px 40px rgba(0,0,0,.5);
    z-index: 100;
}
.ai-lang-menu a {
    display: flex; gap: 8px; padding: 10px 12px;
    color: var(--ai-text); border-radius: 8px;
}
.ai-lang-menu a:hover, .ai-lang-menu a.active { background: rgba(0,229,255,.12); color: var(--ai-cyan); }
.ai-menu-toggle {
    display: flex; align-items: center; justify-content: center;
    width: 42px; height: 42px;
    background: transparent;
    border: 1px solid var(--ai-border);
    border-radius: 10px;
    color: var(--ai-text);
    cursor: pointer;
}
.ai-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,.6);
    z-index: 999;
    opacity: 0;
    transition: opacity .2s;
    pointer-events: none;
}
.ai-overlay.is-open { opacity: 1; pointer-events: auto; }
body.ai-nav-open { overflow: hidden; }

/* Buttons */
.ai-btn-primary {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--ai-cyan), var(--ai-violet));
    color: #fff;
    font-weight: 700;
    border-radius: 999px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    box-shadow: 0 8px 32px var(--ai-glow);
    transition: transform .2s, box-shadow .2s;
    min-height: 48px;
}
.ai-btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px var(--ai-glow); color: #fff; }
.ai-btn-secondary {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 14px 28px;
    background: transparent;
    color: var(--ai-text);
    font-weight: 600;
    border-radius: 999px;
    border: 1px solid var(--ai-border);
    text-decoration: none;
    min-height: 48px;
    transition: border-color .2s, background .2s;
}
.ai-btn-secondary:hover { border-color: var(--ai-cyan); background: rgba(0,229,255,.06); color: #fff; }
.ai-btn-sm { padding: 10px 18px; font-size: 13px; min-height: 40px; }
.ai-btn-paypal {
    background: linear-gradient(135deg, #003087, #009cde);
    box-shadow: 0 8px 32px rgba(0,156,222,.4);
}

/* Hero */
.ai-hero {
    min-height: 100vh;
    padding: calc(var(--ai-header-h) + 48px) 20px 80px;
    display: flex; align-items: center;
    position: relative;
    overflow: hidden;
}
.ai-hero-mesh {
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 20% 20%, rgba(124,58,237,.25), transparent),
        radial-gradient(ellipse 60% 50% at 80% 30%, rgba(0,229,255,.2), transparent),
        radial-gradient(ellipse 50% 40% at 50% 90%, rgba(236,72,153,.12), transparent);
    pointer-events: none;
}
.ai-hero-grid {
    position: absolute; inset: 0;
    background-image: linear-gradient(rgba(0,229,255,.04) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(0,229,255,.04) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
    pointer-events: none;
}
.ai-hero-inner {
    max-width: 1180px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    align-items: center;
    position: relative;
    width: 100%;
}
.ai-hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 8px 16px;
    background: rgba(0,229,255,.1);
    border: 1px solid var(--ai-border);
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    color: var(--ai-cyan);
    margin-bottom: 20px;
}
.ai-hero h1 {
    font-family: var(--ai-display);
    font-size: clamp(2.2rem, 6vw, 3.75rem);
    font-weight: 800;
    line-height: 1.08;
    margin: 0 0 20px;
    letter-spacing: -.03em;
}
.ai-hero-lead {
    font-size: clamp(1.05rem, 2.5vw, 1.2rem);
    color: var(--ai-muted);
    max-width: 560px;
    margin: 0 0 28px;
    line-height: 1.7;
}
.ai-hero-price {
    display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap;
    margin-bottom: 28px;
}
.ai-hero-price strong {
    font-family: var(--ai-display);
    font-size: clamp(2.5rem, 7vw, 4rem);
    font-weight: 800;
    background: linear-gradient(135deg, var(--ai-cyan), #fff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.ai-hero-price span { color: var(--ai-muted); font-size: 1rem; }
.ai-hero-install-note {
    color: var(--ai-cyan);
    font-size: clamp(1rem, 2.2vw, 1.15rem);
    font-weight: 600;
    line-height: 1.6;
    max-width: 540px;
    margin-bottom: 28px;
    padding: 16px 20px;
    background: rgba(0,229,255,.06);
    border: 1px solid rgba(0,229,255,.2);
    border-radius: 14px;
}
.ai-hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 32px; }
.ai-trust-strip {
    display: flex; flex-wrap: wrap; gap: 10px;
}
.ai-trust-pill {
    padding: 8px 14px;
    background: var(--ai-card);
    border: 1px solid var(--ai-border);
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    color: var(--ai-muted);
}
.ai-hero-visual {
    position: relative;
}
.ai-mockup {
    background: var(--ai-card);
    border: 1px solid var(--ai-border);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 24px 80px rgba(0,0,0,.45), 0 0 60px rgba(0,229,255,.08);
}
.ai-mockup img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
.ai-chat-widget {
    position: absolute;
    bottom: -24px;
    right: -12px;
    width: min(300px, 82%);
    background: linear-gradient(165deg, rgba(14,20,40,.98), rgba(7,11,20,.98));
    border: 1px solid rgba(0,229,255,.28);
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 20px 56px rgba(0,0,0,.55), 0 0 40px rgba(0,229,255,.12);
    animation: ai-float 5s ease-in-out infinite;
}
@keyframes ai-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}
.ai-chat-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    background: linear-gradient(135deg, rgba(0,229,255,.14), rgba(124,58,237,.12));
    border-bottom: 1px solid var(--ai-border);
}
.ai-chat-avatar {
    width: 36px; height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--ai-cyan), var(--ai-violet));
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 15px;
    flex-shrink: 0;
}
.ai-chat-meta { flex: 1; min-width: 0; }
.ai-chat-meta strong {
    display: block;
    font-size: 13px;
    font-family: var(--ai-display);
    line-height: 1.2;
}
.ai-chat-status {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 11px;
    color: #4ade80;
    font-weight: 600;
}
.ai-chat-dot {
    width: 7px; height: 7px;
    border-radius: 50%;
    background: #4ade80;
    box-shadow: 0 0 8px rgba(74,222,128,.6);
    animation: ai-pulse 2s ease-in-out infinite;
}
@keyframes ai-pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: .7; transform: scale(.85); }
}
.ai-chat-minimize {
    color: var(--ai-muted);
    font-size: 12px;
    opacity: .7;
}
.ai-chat-body {
    padding: 14px 12px 10px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-height: 120px;
}
.ai-chat-msg {
    display: flex;
    align-items: flex-end;
    gap: 8px;
    max-width: 100%;
}
.ai-chat-msg--user { justify-content: flex-end; }
.ai-chat-msg-icon {
    width: 26px; height: 26px;
    border-radius: 8px;
    background: rgba(0,229,255,.15);
    display: flex; align-items: center; justify-content: center;
    color: var(--ai-cyan);
    font-size: 11px;
    flex-shrink: 0;
}
.ai-chat-bubble {
    padding: 9px 12px;
    font-size: 12px;
    line-height: 1.45;
    border-radius: 14px;
    max-width: 88%;
}
.ai-chat-msg--bot .ai-chat-bubble {
    background: rgba(0,229,255,.1);
    border: 1px solid rgba(0,229,255,.15);
    border-bottom-left-radius: 4px;
    color: var(--ai-text);
}
.ai-chat-msg--user .ai-chat-bubble {
    background: linear-gradient(135deg, rgba(124,58,237,.35), rgba(0,229,255,.2));
    border: 1px solid rgba(124,58,237,.3);
    border-bottom-right-radius: 4px;
    color: #fff;
}
.ai-chat-typing {
    display: flex;
    gap: 4px;
    padding: 4px 0 0 34px;
}
.ai-chat-typing span {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--ai-muted);
    animation: ai-typing 1.4s ease-in-out infinite;
}
.ai-chat-typing span:nth-child(2) { animation-delay: .2s; }
.ai-chat-typing span:nth-child(3) { animation-delay: .4s; }
@keyframes ai-typing {
    0%, 60%, 100% { transform: translateY(0); opacity: .4; }
    30% { transform: translateY(-4px); opacity: 1; }
}
.ai-chat-footer {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px 12px;
    border-top: 1px solid var(--ai-border);
}
.ai-chat-input-fake {
    flex: 1;
    padding: 9px 12px;
    background: rgba(255,255,255,.04);
    border: 1px solid var(--ai-border);
    border-radius: 999px;
    font-size: 11px;
    color: var(--ai-muted);
}
.ai-chat-send {
    width: 34px; height: 34px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--ai-cyan), var(--ai-violet));
    display: flex; align-items: center; justify-content: center;
    color: #fff;
    font-size: 12px;
    flex-shrink: 0;
}

/* Stats */
.ai-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: -40px;
    position: relative;
    z-index: 2;
}
.ai-stat {
    background: var(--ai-card);
    border: 1px solid var(--ai-border);
    border-radius: var(--ai-radius);
    padding: 24px 20px;
    text-align: center;
}
.ai-stat b {
    display: block;
    font-family: var(--ai-display);
    font-size: 2rem;
    font-weight: 800;
    color: var(--ai-cyan);
    line-height: 1;
    margin-bottom: 6px;
}
.ai-stat span { font-size: 12px; color: var(--ai-muted); text-transform: uppercase; letter-spacing: .04em; }

/* Product cards */
.ai-products-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}
.ai-product-card {
    position: relative;
    background: var(--ai-card);
    border: 1px solid var(--ai-border);
    border-radius: 18px;
    padding: 28px 24px;
    display: flex;
    flex-direction: column;
    transition: transform .25s, border-color .25s, box-shadow .25s;
}
.ai-product-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0,229,255,.4);
    box-shadow: 0 16px 48px rgba(0,229,255,.12);
}
.ai-product-card--featured {
    border-color: rgba(0,229,255,.45);
    background: linear-gradient(160deg, rgba(0,229,255,.08), var(--ai-card));
}
.ai-product-tag {
    position: absolute;
    top: 16px; right: 16px;
    padding: 4px 10px;
    background: rgba(124,58,237,.25);
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    color: #c4b5fd;
    text-transform: uppercase;
}
.ai-product-card h3 {
    font-family: var(--ai-display);
    font-size: 1.35rem;
    margin: 0 0 10px;
}
.ai-product-card p { color: var(--ai-muted); margin: 0 0 20px; flex: 1; font-size: 14px; }
.ai-product-price {
    font-family: var(--ai-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--ai-cyan);
    margin-bottom: 16px;
}

/* Features */
.ai-features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}
.ai-feature {
    background: var(--ai-card);
    border: 1px solid var(--ai-border);
    border-radius: var(--ai-radius);
    padding: 24px 20px;
    transition: border-color .2s;
}
.ai-feature:hover { border-color: rgba(0,229,255,.35); }
.ai-feature i {
    font-size: 1.5rem;
    color: var(--ai-cyan);
    margin-bottom: 12px;
}
.ai-feature h3 { margin: 0 0 8px; font-size: 1.05rem; }
.ai-feature p { margin: 0; color: var(--ai-muted); font-size: 14px; }

/* How steps */
.ai-steps {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    counter-reset: step;
}
.ai-step {
    display: flex; gap: 16px; align-items: flex-start;
    background: var(--ai-card);
    border: 1px solid var(--ai-border);
    border-radius: var(--ai-radius);
    padding: 22px 20px;
}
.ai-step-num {
    flex-shrink: 0;
    width: 40px; height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--ai-cyan), var(--ai-violet));
    display: flex; align-items: center; justify-content: center;
    font-weight: 800;
    font-size: 1rem;
}
.ai-step h3 { margin: 0 0 6px; font-size: 1rem; }
.ai-step p { margin: 0; color: var(--ai-muted); font-size: 14px; }

/* Integrations */
.ai-integrations-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
}
.ai-integration-card {
    position: relative;
    display: grid;
    grid-template-columns: auto 1fr auto;
    grid-template-rows: auto auto;
    gap: 4px 14px;
    align-items: center;
    padding: 18px 20px;
    background: var(--ai-card);
    border: 1px solid var(--ai-border);
    border-radius: 16px;
    color: var(--ai-text);
    text-decoration: none;
    transition: transform .22s, border-color .22s, box-shadow .22s;
    min-height: 44px;
}
.ai-integration-card:hover {
    transform: translateY(-3px);
    border-color: rgba(0,229,255,.45);
    box-shadow: 0 14px 40px rgba(0,229,255,.12);
    color: var(--ai-text);
}
.ai-integration-card-icon {
    grid-row: 1 / 3;
    width: 48px; height: 48px;
    border-radius: 14px;
    background: color-mix(in srgb, var(--platform-color, #00e5ff) 18%, transparent);
    border: 1px solid color-mix(in srgb, var(--platform-color, #00e5ff) 35%, transparent);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.35rem;
    color: var(--platform-color, var(--ai-cyan));
}
.ai-integration-card-name {
    font-family: var(--ai-display);
    font-weight: 700;
    font-size: 1.05rem;
    align-self: end;
}
.ai-integration-card-desc {
    grid-column: 2;
    font-size: 13px;
    color: var(--ai-muted);
    line-height: 1.4;
}
.ai-integration-card-arrow {
    grid-row: 1 / 3;
    grid-column: 3;
    color: var(--ai-cyan);
    font-size: 14px;
    opacity: .6;
    transition: opacity .2s, transform .2s;
}
.ai-integration-card:hover .ai-integration-card-arrow {
    opacity: 1;
    transform: translateX(3px);
}

/* Platform landing pages */
.ai-platform-hero {
    padding: calc(var(--ai-header-h) + 40px) 0 56px;
    background: linear-gradient(180deg, rgba(0,229,255,.06), transparent);
}
.ai-platform-crumb {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    font-size: 13px;
    color: var(--ai-muted);
    margin-bottom: 28px;
}
.ai-platform-crumb a { color: var(--ai-muted); }
.ai-platform-crumb a:hover { color: var(--ai-cyan); }
.ai-platform-hero-inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    align-items: start;
}
.ai-platform-hero-icon {
    width: 72px; height: 72px;
    border-radius: 20px;
    background: color-mix(in srgb, var(--platform-color, #00e5ff) 20%, transparent);
    border: 1px solid color-mix(in srgb, var(--platform-color, #00e5ff) 40%, transparent);
    display: flex; align-items: center; justify-content: center;
    font-size: 2rem;
    color: var(--platform-color, var(--ai-cyan));
}
.ai-platform-hero h1 {
    font-family: var(--ai-display);
    font-size: clamp(1.75rem, 4vw, 2.6rem);
    margin: 0 0 12px;
    letter-spacing: -.02em;
}
.ai-platform-subtitle {
    font-size: 1.1rem;
    color: var(--ai-cyan);
    margin: 0 0 14px;
    font-weight: 600;
}
.ai-platform-intro {
    color: var(--ai-muted);
    line-height: 1.75;
    margin: 0 0 16px;
    max-width: 720px;
}
.ai-platform-region {
    font-size: 13px;
    color: var(--ai-muted);
    margin: 0 0 24px;
}
.ai-platform-region i { color: var(--ai-cyan); margin-right: 6px; }
.ai-platform-cta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}
.ai-platform-benefits {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}
.ai-platform-benefit {
    background: var(--ai-card);
    border: 1px solid var(--ai-border);
    border-radius: var(--ai-radius);
    padding: 22px 20px;
}
.ai-platform-benefit h3 { margin: 0 0 8px; font-size: 1rem; }
.ai-platform-benefit p { margin: 0; color: var(--ai-muted); font-size: 14px; line-height: 1.6; }
.ai-platform-features {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    max-width: 720px;
    margin-inline: auto;
}
.ai-platform-features li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 14px 16px;
    background: var(--ai-card);
    border: 1px solid var(--ai-border);
    border-radius: 12px;
    font-size: 14px;
}
.ai-platform-features i { color: var(--ai-cyan); margin-top: 2px; flex-shrink: 0; }

/* Pricing */
.ai-pricing-tiers {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    max-width: 820px;
    margin: 0 auto 32px;
}
.ai-pricing-tier {
    background: var(--ai-card);
    border: 1px solid var(--ai-border);
    border-radius: 20px;
    padding: 28px 24px;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.ai-pricing-tier--featured {
    border-color: rgba(0, 229, 255, .45);
    background: linear-gradient(160deg, rgba(0,229,255,.12), var(--ai-card));
    box-shadow: 0 0 40px rgba(0, 229, 255, .12);
}
.ai-pricing-tier-tag {
    display: inline-block;
    align-self: center;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--ai-cyan);
    background: rgba(0, 229, 255, .1);
    border: 1px solid rgba(0, 229, 255, .25);
    border-radius: 999px;
    padding: 4px 12px;
}
.ai-pricing-tier-title {
    font-family: var(--ai-display);
    font-size: 1.2rem;
    margin: 0;
}
.ai-pricing-tier-price {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.ai-pricing-tier-price strong {
    font-family: var(--ai-display);
    font-size: clamp(2rem, 5vw, 2.5rem);
    color: #fff;
    line-height: 1.1;
}
.ai-pricing-tier-price span {
    font-size: 1rem;
    color: var(--ai-muted);
    font-weight: 600;
}
.ai-pricing-tier-desc {
    color: var(--ai-muted);
    font-size: 14px;
    line-height: 1.55;
    margin: 0;
    flex: 1;
}
.ai-pricing-includes-title {
    font-weight: 600;
    margin: 0 0 8px;
    color: var(--ai-cyan);
    font-size: 14px;
}
@media (max-width: 700px) {
    .ai-pricing-tiers { grid-template-columns: 1fr; }
}
.ai-pricing-box {
    max-width: 560px;
    margin: 0 auto;
    background: linear-gradient(160deg, rgba(0,229,255,.1), var(--ai-card));
    border: 2px solid rgba(0,229,255,.3);
    border-radius: 24px;
    padding: 40px 32px;
    text-align: center;
}
.ai-pricing-list {
    list-style: none;
    padding: 0;
    margin: 24px 0 32px;
    text-align: left;
}
.ai-pricing-list li {
    padding: 10px 0;
    border-bottom: 1px solid var(--ai-border);
    display: flex; align-items: center; gap: 10px;
    font-size: 14px;
}
.ai-pricing-list li::before {
    content: '✓';
    color: var(--ai-cyan);
    font-weight: 700;
}

/* Advantages */
.ai-adv-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
.ai-adv-item {
    background: var(--ai-card);
    border: 1px solid var(--ai-border);
    border-radius: 12px;
    padding: 16px;
    font-size: 13px;
    font-weight: 500;
    text-align: center;
}

/* FAQ */
.ai-faq { max-width: 760px; margin: 0 auto; }
.ai-faq-item {
    border: 1px solid var(--ai-border);
    border-radius: 12px;
    margin-bottom: 10px;
    overflow: hidden;
    background: var(--ai-card);
}
.ai-faq-q {
    width: 100%;
    padding: 18px 20px;
    background: transparent;
    border: none;
    color: var(--ai-text);
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}
.ai-faq-q i { color: var(--ai-cyan); transition: transform .2s; flex-shrink: 0; }
.ai-faq-item.is-open .ai-faq-q i { transform: rotate(180deg); }
.ai-faq-a {
    display: none;
    padding: 0 20px 18px;
    color: var(--ai-muted);
    font-size: 14px;
    line-height: 1.65;
}
.ai-faq-item.is-open .ai-faq-a { display: block; }

/* Developer */
.ai-dev-box {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    background: var(--ai-card);
    border: 1px solid var(--ai-border);
    border-radius: 20px;
    padding: 40px 28px;
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--ai-muted);
}
.ai-dev-box strong { color: var(--ai-text); }

/* Contact */
.ai-contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: start;
}
.ai-form {
    background: var(--ai-card);
    border: 1px solid var(--ai-border);
    border-radius: 20px;
    padding: 32px 24px;
}
.ai-form input, .ai-form textarea {
    width: 100%;
    padding: 14px 16px;
    margin-bottom: 14px;
    background: rgba(255,255,255,.05);
    border: 1px solid var(--ai-border);
    border-radius: 12px;
    color: var(--ai-text);
}
.ai-form input:focus, .ai-form textarea:focus {
    outline: none;
    border-color: var(--ai-cyan);
    box-shadow: 0 0 0 3px rgba(0,229,255,.15);
}
.ai-captcha-row {
    display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
    margin-bottom: 16px;
}
.ai-captcha-row input { width: 120px; margin-bottom: 0; }
.ai-alert {
    padding: 14px 18px;
    border-radius: 12px;
    margin-bottom: 20px;
    font-weight: 600;
    text-align: center;
}
.ai-alert--success { background: rgba(34,197,94,.15); border: 1px solid rgba(34,197,94,.35); color: #86efac; }
.ai-alert--error { background: rgba(239,68,68,.12); border: 1px solid rgba(239,68,68,.35); color: #fca5a5; }

/* PayPal block */
.ai-paypal-card {
    background: var(--ai-card);
    border: 1px solid var(--ai-border);
    border-radius: 24px;
    padding: 48px 32px;
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
}
.ai-paypal-card h2 { font-family: var(--ai-display); margin: 0 0 12px; }
.ai-paypal-card .sub { color: var(--ai-cyan); font-weight: 600; margin-bottom: 12px; }
.ai-paypal-card .desc { color: var(--ai-muted); margin-bottom: 28px; }
.ai-install-list {
    list-style: none;
    margin: 0 0 28px;
    padding: 0;
    text-align: left;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
}
.ai-install-list li {
    position: relative;
    padding: 12px 0 12px 28px;
    color: var(--ai-muted);
    line-height: 1.6;
    border-bottom: 1px solid var(--ai-border);
}
.ai-install-list li:last-child { border-bottom: none; }
.ai-install-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--ai-cyan);
    font-weight: 700;
}
.ai-install-list--contact { max-width: none; margin: 0 0 24px; }

/* Footer */
.ai-footer {
    background: #04060c;
    border-top: 1px solid var(--ai-border);
    padding: 56px 0 32px;
    margin-top: 40px;
}
.ai-footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    margin-bottom: 40px;
}
.ai-footer h4 {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: .06em;
    color: var(--ai-cyan);
    margin: 0 0 14px;
}
.ai-footer ul { list-style: none; padding: 0; margin: 0; }
.ai-footer li { margin-bottom: 8px; }
.ai-footer a { color: var(--ai-muted); font-size: 14px; }
.ai-footer a:hover { color: var(--ai-cyan); }
.ai-footer-brand p { color: var(--ai-muted); font-size: 14px; margin: 12px 0 0; max-width: 280px; }
.ai-footer-bottom { text-align: center; padding-top: 24px; border-top: 1px solid var(--ai-border); }
.ai-footer-bottom p { margin: 0 0 12px; font-size: 13px; color: var(--ai-muted); }
.simple-visitor-counter {
    font-size: 13px;
    color: var(--ai-muted);
    background: var(--ai-card);
    padding: 8px 16px;
    border-radius: 999px;
    display: inline-block;
    border: 1px solid var(--ai-border);
}

/* Responsive */
@media (min-width: 640px) {
    .ai-features-grid { grid-template-columns: repeat(2, 1fr); }
    .ai-products-grid { grid-template-columns: repeat(2, 1fr); }
    .ai-product-card--featured { grid-column: 1 / -1; }
    .ai-stats { grid-template-columns: repeat(4, 1fr); }
    .ai-adv-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 900px) {
    .ai-nav { display: flex; margin-left: 0; }
    .ai-header-actions { margin-left: auto; }
    .ai-menu-toggle { display: none; }
    .ai-hero-inner { grid-template-columns: 1.05fr .95fr; }
    .ai-products-grid { grid-template-columns: repeat(3, 1fr); }
    .ai-product-card--featured { grid-column: auto; }
    .ai-features-grid { grid-template-columns: repeat(3, 1fr); }
    .ai-steps { grid-template-columns: repeat(2, 1fr); }
    .ai-contact-grid { grid-template-columns: 1fr 1fr; }
    .ai-footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
}
@media (max-width: 899px) {
    .ai-header.nav-open .ai-nav {
        display: flex;
        flex-direction: column;
        position: fixed;
        top: var(--ai-header-h);
        left: 0; right: 0;
        background: var(--ai-bg2);
        border-bottom: 1px solid var(--ai-border);
        padding: 16px 20px 20px;
        z-index: 1001;
    }
    .ai-header-actions .ai-btn-sm span { display: none; }
    .ai-hero-visual { margin-top: 20px; }
    .ai-chat-widget { right: 0; bottom: -16px; width: min(280px, 90%); }
}
/* Ecosystem grid */
.ai-eco-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}
.ai-eco-card {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 22px 20px;
    background: var(--ai-card);
    border: 1px solid var(--ai-border);
    border-radius: var(--ai-radius);
    color: var(--ai-text);
    text-decoration: none;
    transition: transform .2s, border-color .2s, box-shadow .2s;
    min-height: 44px;
}
.ai-eco-card:hover {
    transform: translateY(-3px);
    border-color: rgba(0,229,255,.4);
    box-shadow: 0 12px 36px rgba(0,229,255,.1);
    color: var(--ai-text);
}
.ai-eco-icon {
    width: 44px; height: 44px;
    border-radius: 12px;
    background: rgba(0,229,255,.1);
    border: 1px solid rgba(0,229,255,.22);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.ai-eco-icon i { font-size: 1.25rem; color: var(--ai-cyan); }
.ai-eco-card i { font-size: 1.4rem; color: var(--ai-cyan); }
.ai-eco-card h3 { margin: 0; font-size: 1rem; font-family: var(--ai-display); }
.ai-eco-card p { margin: 0; font-size: 13px; color: var(--ai-muted); flex: 1; line-height: 1.5; }
.ai-eco-link { font-size: 12px; font-weight: 700; color: var(--ai-cyan); }
.ai-eco-badge {
    position: absolute;
    top: 12px; right: 12px;
    padding: 3px 8px;
    border-radius: 999px;
    font-size: 10px;
    font-weight: 700;
    background: rgba(124,58,237,.2);
    color: #c4b5fd;
    text-transform: uppercase;
}

/* SEO text block */
.ai-seo-article {
    max-width: 900px;
    margin: 0 auto;
    background: var(--ai-card);
    border: 1px solid var(--ai-border);
    border-radius: 20px;
    padding: 36px 28px;
}
.ai-seo-article h2 {
    font-family: var(--ai-display);
    font-size: 1.5rem;
    margin: 0 0 16px;
    text-align: center;
}
.ai-seo-article p {
    color: var(--ai-muted);
    line-height: 1.75;
    margin: 0 0 14px;
    font-size: 15px;
}
.ai-seo-links {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 12px;
    justify-content: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--ai-border);
}
.ai-seo-links a {
    font-size: 12px;
    padding: 6px 12px;
    border-radius: 999px;
    border: 1px solid var(--ai-border);
    color: var(--ai-muted);
}
.ai-seo-links a:hover { color: var(--ai-cyan); border-color: var(--ai-cyan); }

/* GDPR + chat offset — see /assets/css/bh-chat-widget.css */

@media (min-width: 640px) {
    .ai-eco-grid { grid-template-columns: repeat(2, 1fr); }
    .ai-integrations-grid { grid-template-columns: repeat(2, 1fr); }
    .ai-platform-benefits { grid-template-columns: repeat(2, 1fr); }
    .ai-platform-features { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 900px) {
    .ai-eco-grid { grid-template-columns: repeat(4, 1fr); }
    .ai-footer-grid { grid-template-columns: 1.3fr 1fr 1fr 1fr; }
    .ai-integrations-grid { grid-template-columns: repeat(3, 1fr); }
    .ai-platform-hero-inner { grid-template-columns: auto 1fr; gap: 32px; }
    .ai-platform-benefits { grid-template-columns: repeat(4, 1fr); }
}

@media (max-width: 480px) {
    .ai-section { padding: 64px 0; }
    .ai-hero-ctas { flex-direction: column; }
    .ai-hero-ctas .ai-btn-primary, .ai-hero-ctas .ai-btn-secondary { width: 100%; }
    .ai-adv-grid { grid-template-columns: 1fr; }
}