:root {
    --lh-primary: #2563eb;
    --lh-primary-dark: #1d4ed8;
    --lh-accent: #06b6d4;
    --lh-dark: #0f172a;
    --lh-muted: #64748b;
    --lh-light: #f8fafc;
    --lh-border: #e2e8f0;
    --lh-gradient: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #2563eb 100%);
}

* { box-sizing: border-box; }

.lh-landing {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--lh-dark);
    line-height: 1.6;
    margin: 0;
    background: #fff;
}

.lh-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 5%;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.lh-logo {
    font-size: 1.35rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
    letter-spacing: -0.02em;
}

.lh-logo span { color: var(--lh-accent); }

.lh-nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.lh-nav-links a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

.lh-nav-links a:hover { color: #fff; }

.lh-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.65rem 1.35rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
}

.lh-btn-primary {
    background: var(--lh-primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
}

.lh-btn-primary:hover {
    background: var(--lh-primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.45);
}

.lh-btn-outline {
    background: transparent;
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.35);
}

.lh-btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
}

.lh-btn-ghost {
    background: var(--lh-light);
    color: var(--lh-dark);
    border: 1px solid var(--lh-border);
}

.lh-btn-ghost:hover { background: #fff; border-color: var(--lh-primary); color: var(--lh-primary); }

.lh-hero {
    min-height: 100vh;
    padding: 8rem 5% 5rem;
    background: var(--lh-gradient);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.lh-hero::before {
    content: '';
    position: absolute;
    top: -20%;
    right: -10%;
    width: 60%;
    height: 80%;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.lh-hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    position: relative;
    z-index: 1;
}

.lh-hero h1 {
    font-size: clamp(2.25rem, 4vw, 3.25rem);
    font-weight: 700;
    color: #fff;
    line-height: 1.15;
    margin: 0 0 1.25rem;
    letter-spacing: -0.03em;
}

.lh-hero h1 span { color: var(--lh-accent); }

.lh-hero-lead {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    margin: 0 0 2rem;
    max-width: 520px;
}

.lh-hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.lh-hero-visual {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    padding: 1.5rem;
    backdrop-filter: blur(8px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
}

.lh-mock-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.lh-mock-stat {
    background: rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    padding: 1rem;
    text-align: center;
}

.lh-mock-stat strong {
    display: block;
    font-size: 1.5rem;
    color: #fff;
}

.lh-mock-stat span {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.lh-mock-chart {
    height: 120px;
    background: linear-gradient(180deg, rgba(37, 99, 235, 0.3) 0%, transparent 100%);
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: flex-end;
    padding: 0.75rem;
    gap: 6px;
}

.lh-mock-bar {
    flex: 1;
    background: linear-gradient(180deg, var(--lh-accent), var(--lh-primary));
    border-radius: 4px 4px 0 0;
    min-height: 20%;
}

.lh-section {
    padding: 5rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.lh-section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.lh-section-title h2 {
    font-size: 2rem;
    font-weight: 700;
    margin: 0 0 0.75rem;
    letter-spacing: -0.02em;
}

.lh-section-title p {
    color: var(--lh-muted);
    font-size: 1.05rem;
    margin: 0;
}

.lh-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.lh-feature-card {
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--lh-border);
    background: #fff;
    transition: box-shadow 0.25s, transform 0.25s;
}

.lh-feature-card:hover {
    box-shadow: 0 12px 40px rgba(15, 23, 42, 0.08);
    transform: translateY(-4px);
}

.lh-feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: linear-gradient(135deg, #eff6ff, #dbeafe);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 1.25rem;
}

.lh-feature-card h3 {
    font-size: 1.1rem;
    margin: 0 0 0.5rem;
    font-weight: 600;
}

.lh-feature-card p {
    margin: 0;
    color: var(--lh-muted);
    font-size: 0.925rem;
}

.lh-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    counter-reset: step;
}

.lh-step {
    text-align: center;
    position: relative;
}

.lh-step-num {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--lh-primary);
    color: #fff;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1rem;
}

.lh-step h3 {
    font-size: 1rem;
    margin: 0 0 0.35rem;
}

.lh-step p {
    font-size: 0.875rem;
    color: var(--lh-muted);
    margin: 0;
}

.lh-cta-band {
    margin: 0 5% 5rem;
    padding: 3.5rem 5%;
    background: var(--lh-gradient);
    border-radius: 20px;
    text-align: center;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
}

.lh-cta-band h2 {
    color: #fff;
    font-size: 1.75rem;
    margin: 0 0 0.75rem;
}

.lh-cta-band p {
    color: rgba(255, 255, 255, 0.8);
    margin: 0 0 1.5rem;
}

.lh-footer {
    background: var(--lh-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 3rem 5% 2rem;
}

.lh-footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto 2rem;
}

.lh-footer-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.75rem;
}

.lh-footer a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    display: block;
    margin-bottom: 0.4rem;
    font-size: 0.9rem;
}

.lh-footer a:hover { color: #fff; }

.lh-footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.85rem;
    max-width: 1200px;
    margin: 0 auto;
}

.lh-bg-light { background: var(--lh-light); }

@media (max-width: 900px) {
    .lh-hero-grid { grid-template-columns: 1fr; text-align: center; }
    .lh-hero-lead { margin-left: auto; margin-right: auto; }
    .lh-hero-cta { justify-content: center; }
    .lh-hero-visual { display: none; }
    .lh-features { grid-template-columns: 1fr; }
    .lh-steps { grid-template-columns: 1fr 1fr; }
    .lh-footer-grid { grid-template-columns: 1fr; }
    .lh-nav-links a:not(.lh-btn) { display: none; }
}