:root {
    --primary: #163b6d;
    --primary-dark: #0f2a4f;
    --accent: #1f7a5c;
    --background: #f6f8fb;
    --text: #182230;
    --muted: #667085;
    --border: #d9e0ea;
    --white: #ffffff;
    --warning-bg: #fff4e5;
    --warning-text: #9a5b00;
    --success-bg: #ecfdf3;
    --success-text: #05603a;
    --error-bg: #fef3f2;
    --error-text: #b42318;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--text);
    background: var(--background);
    line-height: 1.55;
}

a {
    color: inherit;
    text-decoration: none;
}

.container {
    width: min(1120px, calc(100% - 40px));
    margin: 0 auto;
}

/* Header */

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background: var(--white);
    border-bottom: 1px solid var(--border);
}

.nav {
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 800;
    color: var(--primary);
}

.brand-mark {
    width: 34px;
    height: 34px;
    display: grid;
    place-items: center;
    border-radius: 9px;
    color: var(--white);
    background: var(--primary);
    font-size: 15px;
}

.nav-cta {
    padding: 12px 18px;
    color: var(--white);
    background: var(--primary);
    border-radius: 10px;
    font-weight: 700;
}

/* Buttons */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 14px 22px;
    border: 0;
    border-radius: 12px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 800;
}

.btn-primary {
    color: var(--white);
    background: var(--primary);
}

.btn-secondary {
    color: var(--primary);
    background: var(--white);
    border: 1px solid var(--border);
}

/* Hero */

.hero {
    padding: 82px 0 70px;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 54px;
    align-items: center;
}

.badge {
    display: inline-flex;
    margin-bottom: 22px;
    padding: 8px 12px;
    border-radius: 999px;
    color: var(--primary);
    background: #eaf2ff;
    font-size: 14px;
    font-weight: 700;
}

h1,
h2,
h3 {
    color: #101828;
}

h1 {
    margin: 0 0 24px;
    font-size: clamp(38px, 5vw, 64px);
    line-height: 1.02;
    letter-spacing: -1.5px;
}

h2 {
    margin: 0 0 16px;
    font-size: clamp(30px, 4vw, 46px);
    line-height: 1.12;
    letter-spacing: -0.8px;
}

h3 {
    margin: 0 0 10px;
    font-size: 20px;
}

.hero-text {
    max-width: 680px;
    margin: 0 0 30px;
    color: var(--muted);
    font-size: 20px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
}

.note {
    margin-top: 16px;
    color: var(--muted);
    font-size: 14px;
}

/* Mockup */

.mockup {
    padding: 22px;
    border: 1px solid var(--border);
    border-radius: 22px;
    background: var(--white);
    box-shadow: 0 24px 70px rgba(16, 24, 40, 0.12);
}

.mockup-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
    color: var(--primary);
}

.status {
    padding: 6px 10px;
    border-radius: 999px;
    color: var(--warning-text);
    background: var(--warning-bg);
    font-size: 13px;
    font-weight: 800;
}

.check-row {
    display: flex;
    justify-content: space-between;
    padding: 13px 0;
    border-bottom: 1px solid #eef2f6;
    font-size: 15px;
}

.ok {
    color: var(--accent);
}

.warning {
    color: #b54708;
}

.mockup-button {
    width: 100%;
    margin-top: 22px;
    padding: 16px;
    border: 0;
    border-radius: 12px;
    color: var(--white);
    background: var(--primary);
    font-weight: 800;
}

/* Sections */

.section {
    padding: 70px 0;
}

.section-intro {
    max-width: 760px;
    margin: 0 0 34px;
    color: var(--muted);
    font-size: 18px;
}

.section-dark {
    color: var(--white);
    background: var(--primary-dark);
}

.section-dark h2,
.section-dark h3 {
    color: var(--white);
}

.section-dark .section-intro,
.section-dark p {
    color: #cbd5e1;
}

/* Cards */

.cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.card {
    padding: 24px;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: var(--white);
}

.card p {
    margin: 0;
    color: var(--muted);
}

.section-dark .card {
    border-color: rgba(255, 255, 255, 0.14);
    background: rgba(255, 255, 255, 0.06);
}

/* Split */

.split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 34px;
    align-items: start;
}

.panel {
    padding: 24px;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: var(--white);
}

.panel-dark {
    border-color: rgba(255, 255, 255, 0.14);
    background: rgba(255, 255, 255, 0.06);
}

.panel ul {
    margin: 0;
    padding-left: 20px;
}

.panel li {
    margin: 10px 0;
}

/* Form */

.pilot {
    background: var(--white);
    border-top: 1px solid var(--border);
}

.lead-form {
    padding: 28px;
    border: 1px solid var(--border);
    border-radius: 22px;
    background: var(--white);
    box-shadow: 0 18px 50px rgba(16, 24, 40, 0.08);
}

label {
    display: block;
    margin-bottom: 7px;
    font-weight: 700;
}

input,
select,
textarea {
    width: 100%;
    margin-bottom: 16px;
    padding: 13px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font: inherit;
    background: var(--white);
}

textarea {
    min-height: 110px;
    resize: vertical;
}

.honeypot {
    display: none;
}

.alert {
    margin-bottom: 18px;
    padding: 16px;
    border-radius: 12px;
    font-weight: 700;
}

.alert-success {
    color: var(--success-text);
    background: var(--success-bg);
    border: 1px solid #abefc6;
}

.alert-error {
    color: var(--error-text);
    background: var(--error-bg);
    border: 1px solid #fecdca;
}

/* Footer */

.site-footer {
    padding: 32px 0;
    color: var(--muted);
    background: var(--white);
    border-top: 1px solid var(--border);
    font-size: 14px;
}

/* Responsive */

@media (max-width: 880px) {
    .hero-grid,
    .split {
        grid-template-columns: 1fr;
    }

    .cards {
        grid-template-columns: 1fr;
    }

    .nav-cta {
        display: none;
    }

    .hero {
        padding-top: 52px;
    }
}