:root {
    --primary: #38bdf8;
    --dark: #090f1a;
    --text: #0f172a;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    color: var(--text);
}

.hero {
    background: radial-gradient(circle at top left, #1d2539, #090f1a 70%);
    color: #fff;
    padding: 2rem clamp(1rem, 5vw, 4rem) 4rem;
}

.hero nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-weight: 700;
    font-size: 1.3rem;
}

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

.nav-actions {
    display: flex;
    gap: .75rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: .5rem;
    border: none;
    padding: .55rem 1.4rem;
    background: var(--primary);
    color: #091120;
    font-weight: 600;
    text-decoration: none;
}

.btn.ghost {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    margin-top: 4px;
    align-items: center;
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: .2em;
    font-size: .8rem;
    color: rgba(255, 255, 255, 0.7);
}

.hero-text h1 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    margin-bottom: 1rem;
}

.lead {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
}

.hero-actions {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
}

.hero-media img {
    width: 100%;
    border-radius: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.section {
    padding: 3rem clamp(1rem, 6vw, 5rem);
}

.section.dark {
    background: #f4f6fb;
}

.section-header {
    text-align: center;
    margin-bottom: 2rem;
}

.grid {
    display: grid;
    gap: 1.25rem;
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
    background: #fff;
    border-radius: .9rem;
    padding: 1.25rem;
    border: 1px solid rgba(15, 23, 42, 0.08);
}

.section.dark .card {
    background: #fff;
}

.pricing-card {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    background: #0b1729;
    color: #fff;
    border-radius: 1.25rem;
    padding: 2rem;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.tier-card {
    background: #fff;
    border: 1px solid rgba(15, 23, 42, 0.08);
}

.price-summary h3 {
    font-size: 2rem;
    margin: .5rem 0;
}

.price-slider input[type="range"] {
    width: 100%;
    appearance: none;
    height: .4rem;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.3);
}

.price-slider input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 1.1rem;
    height: 1.1rem;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    margin-top: .35rem;
    font-size: .85rem;
    color: rgba(255, 255, 255, 0.7);
}

footer {
    padding: 2rem;
    text-align: center;
    background: #050b16;
    color: rgba(255, 255, 255, 0.7);
}

.tier-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.tier-table th,
.tier-table td {
    padding: .75rem 1rem;
    border-bottom: 1px solid rgba(15, 23, 42, 0.1);
    text-align: left;
}

.tier-table th {
    background: rgba(15, 23, 42, 0.03);
}

@media (max-width: 600px) {
    .hero-actions {
        flex-direction: column;
    }
}