:root {
    --brand: #0b73f1;
    --brand-strong: #0667da;
    --text: #0f172a;
    --muted: #4b5563;
    --surface: #ffffff;
    --surface-soft: #f1f5f9;
    --card-border: #e5e7eb;
    --shadow: 0 16px 40px rgba(12, 28, 63, 0.12);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
    color: var(--text);
    background: #ffffff;
}

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

.landing-nav {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #e9eef7;
}

.nav-inner {
    max-width: 1180px;
    margin: 0 auto;
    padding: 12px 20px;
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: center;
    gap: 12px;
}

.nav-brand {
    font-weight: 800;
    color: var(--brand);
    font-size: 20px;
}

.nav-links {
    display: flex;
    gap: 18px;
    justify-content: center;
    font-weight: 600;
    color: #1f2937;
}

.nav-links a {
    padding: 8px 10px;
    border-radius: 8px;
    transition: background 0.15s ease, color 0.15s ease;
}

.nav-links a:hover {
    background: var(--surface-soft);
}

.nav-actions {
    display: flex;
    gap: 12px;
    justify-content: end;
    align-items: center;
}

.nav-link {
    font-weight: 600;
    color: #111827;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 10px;
    padding: 12px 20px;
    font-weight: 700;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease, color 0.12s ease;
}

.button.primary {
    background: linear-gradient(90deg, #0b7bfa, #0b61f4);
    color: #fff;
    box-shadow: 0 10px 30px rgba(11, 97, 244, 0.25);
}

.button.primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 14px 34px rgba(11, 97, 244, 0.28);
}

.button.ghost {
    background: #fff;
    color: #111827;
    border-color: #e5e7eb;
}

.button.ghost:hover {
    background: var(--surface-soft);
}

.button.full {
    width: 100%;
}

.hero {
    background: linear-gradient(180deg, #e8f2ff 0%, #d3e8ff 70%, #e7f1ff 100%);
    padding: 80px 20px 70px;
}

.hero-inner {
    max-width: 880px;
    margin: 0 auto;
    text-align: center;
}

.badge {
    display: inline-block;
    background: rgba(11, 123, 250, 0.12);
    color: #0b6cd4;
    border: 1px solid rgba(11, 123, 250, 0.3);
    padding: 10px 18px;
    border-radius: 999px;
    font-weight: 700;
    letter-spacing: 0.01em;
}

.hero-title {
    margin: 16px 0 12px;
    font-size: clamp(32px, 4vw, 52px);
    line-height: 1.1;
    font-weight: 800;
}

.hero-title .highlight {
    color: var(--brand);
    display: block;
}

.hero-subtitle {
    margin: 0 auto 26px;
    max-width: 720px;
    color: #4b5563;
    font-size: 18px;
}

.section {
    padding: 70px 20px;
    background: #fff;
}

.section:nth-of-type(odd) {
    background: #f9fbff;
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 36px;
}

.section-header h2 {
    margin: 0 0 12px;
    font-size: clamp(28px, 3vw, 38px);
    font-weight: 800;
}

.section-header p {
    margin: 0;
    color: var(--muted);
    font-size: 18px;
}

.cards-grid {
    max-width: 1180px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.card {
    background: #fff;
    border: 1px solid var(--card-border);
    border-radius: 18px;
    padding: 22px 20px 18px;
    box-shadow: 0 10px 26px rgba(12, 28, 63, 0.06);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 36px rgba(12, 28, 63, 0.08);
}

.card-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: linear-gradient(135deg, #0c8cfb, #0b6cf2);
    display: grid;
    place-items: center;
    margin-bottom: 14px;
}

.card-icon svg {
    width: 32px;
    height: 32px;
    stroke: #fff;
    fill: none;
    stroke-width: 2.5;
}

.card-icon svg path,
.card-icon svg rect,
.card-icon svg ellipse,
.card-icon svg circle {
    stroke-linejoin: round;
    stroke-linecap: round;
}

.card h3 {
    margin: 0 0 8px;
    font-size: 20px;
}

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

.benefits-grid {
    max-width: 1080px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 14px;
}

.benefit-pill {
    background: #f4f8ff;
    border: 1px solid #e4edff;
    color: #0b1f33;
    padding: 14px 16px;
    border-radius: 14px;
    font-weight: 700;
    display: flex;
    gap: 10px;
    align-items: center;
    box-shadow: 0 8px 20px rgba(12, 28, 63, 0.06);
}

.check-icon {
    color: var(--brand);
    font-weight: 900;
}

.cta-band {
    background: linear-gradient(180deg, #e8f2ff 0%, #d6eaff 100%);
    padding: 70px 20px;
}

.cta-inner {
    max-width: 860px;
    margin: 0 auto;
    text-align: center;
}

.cta-inner h2 {
    margin: 0 0 12px;
    font-size: clamp(28px, 3.2vw, 38px);
    font-weight: 800;
}

.cta-copy {
    margin: 0 auto 20px;
    max-width: 760px;
    color: var(--muted);
    font-size: 18px;
}

.contact-shell {
    margin-top: 10px;
}

.contact-toggle {
    margin: 12px auto 0;
    padding-inline: 28px;
    box-shadow: 0 14px 30px rgba(11, 97, 244, 0.2);
}

.contact-form {
    max-width: 720px;
    margin: 16px auto 0;
    background: #fff;
    border: 1px solid #dfe8fa;
    border-radius: 18px;
    padding: 22px;
    box-shadow: 0 22px 50px rgba(12, 28, 63, 0.12);
    gap: 16px;
    display: none;
}

.contact-form.open {
    display: grid;
    animation: fadeIn 0.18s ease-out;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 12px;
}

.form-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-field label {
    font-weight: 700;
    color: #0f172a;
}

.input,
.textarea {
    width: 100%;
    border: 1px solid #d6deee;
    border-radius: 12px;
    padding: 12px 12px;
    font-size: 16px;
    font-family: inherit;
    background: #fbfdff;
    transition: border 0.12s ease, box-shadow 0.12s ease;
}

.input:focus,
.textarea:focus {
    outline: none;
    border-color: #0b73f1;
    box-shadow: 0 0 0 3px rgba(11, 115, 241, 0.12);
}

.field-error {
    color: #b91c1c;
    font-size: 14px;
}

.alert {
    max-width: 820px;
    margin: 0 auto 12px;
    padding: 12px 14px;
    border-radius: 12px;
    font-weight: 700;
}

.alert.success {
    background: #e6f9ef;
    color: #0f5132;
    border: 1px solid #b7f2d3;
}

.alert.error {
    background: #fef2f2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.footer {
    background: #0a1930;
    color: #d6e2ff;
    padding: 40px 20px 28px;
}

.footer-inner {
    max-width: 1100px;
    margin: 0 auto 20px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.footer-col h4 {
    margin: 0 0 10px;
    font-size: 20px;
}

.footer-col h5 {
    margin: 0 0 8px;
    font-size: 16px;
}

.footer-col a {
    display: block;
    color: #c6d5f6;
    margin: 6px 0;
    font-weight: 600;
}

.footer-meta {
    max-width: 1100px;
    margin: 0 auto;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding-top: 14px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 8px;
    color: #c6d5f6;
    text-align: center;
}

.footer-icons {
    display: flex;
    gap: 10px;
    font-size: 18px;
}

.db-warning {
    position: fixed;
    bottom: 14px;
    right: 14px;
    background: #fff6e5;
    color: #92400e;
    border: 1px solid #f59e0b;
    border-radius: 10px;
    padding: 10px 12px;
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
    max-width: 320px;
}

@media (max-width: 900px) {
    .nav-inner {
        grid-template-columns: 1fr;
        justify-items: start;
    }
    .nav-links {
        order: 3;
        flex-wrap: wrap;
        justify-content: flex-start;
    }
    .nav-actions {
        order: 2;
        width: 100%;
        justify-content: flex-start;
    }
    .hero {
        padding-top: 60px;
    }
}

@media (max-width: 1080px) {
    .cards-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 720px) {
    .cards-grid {
        grid-template-columns: 1fr;
    }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}