:root {
    --bg: #f7fafc;
    --surface: #ffffff;
    --surface-soft: #eef7fb;
    --ink: #0e1726;
    --muted: #5f6f86;
    --line: #dbe5ef;
    --blue: #155eef;
    --blue-dark: #0b3fb8;
    --cyan: #0891b2;
    --green: #0f9f6e;
    --orange: #f59e0b;
    --shadow: 0 18px 50px rgba(15, 23, 42, 0.08);
    --radius: 24px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    background:
        radial-gradient(circle at 12% 0%, rgba(21, 94, 239, 0.10), transparent 32rem),
        radial-gradient(circle at 85% 8%, rgba(15, 159, 110, 0.12), transparent 28rem),
        var(--bg);
    color: var(--ink);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.6;
}

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

.container {
    width: min(100% - 32px, 1160px);
    margin-inline: auto;
}

.narrow {
    max-width: 880px;
}

.center {
    text-align: center;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    border-bottom: 1px solid rgba(219, 229, 239, 0.85);
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(18px);
}

.nav-shell {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 22px;
    min-height: 76px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 1.05rem;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.brand-mark {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    object-fit: contain;
}

.main-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    color: var(--muted);
    font-size: 0.94rem;
    font-weight: 700;
}

.main-nav a:hover,
.back-link:hover {
    color: var(--blue);
}

.nav-cta,
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    border: 0;
    cursor: pointer;
    font-weight: 800;
    transition: transform 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.nav-cta {
    background: #eaf1ff;
    color: var(--blue);
    padding: 11px 18px;
    font-size: 0.92rem;
}

.btn {
    min-height: 48px;
    padding: 0 22px;
    font-size: 0.95rem;
}

.btn:hover,
.nav-cta:hover {
    transform: translateY(-1px);
}

.btn.primary {
    color: #fff;
    background: linear-gradient(135deg, var(--blue), var(--cyan));
    box-shadow: 0 14px 26px rgba(21, 94, 239, 0.22);
}

.btn.secondary {
    color: var(--blue-dark);
    background: #fff;
    border: 1px solid var(--line);
}

.full-btn {
    width: 100%;
}

.hero,
.checker-hero {
    padding: 90px 0 58px;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.78fr);
    align-items: center;
    gap: 48px;
}

.eyebrow {
    margin: 0 0 14px;
    color: var(--blue);
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1 {
    max-width: 820px;
    margin-bottom: 22px;
    font-size: clamp(2.7rem, 7vw, 5.8rem);
    line-height: 0.95;
    letter-spacing: -0.07em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3.2rem);
    line-height: 1.05;
    letter-spacing: -0.05em;
}

h3 {
    font-size: 1.15rem;
    line-height: 1.25;
}

.hero-text,
.checker-hero p,
.section-heading p,
.contact-grid > div p,
.cta-panel p {
    color: var(--muted);
    font-size: 1.12rem;
}

.button-row {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin: 32px 0 24px;
}

.trust-list,
.tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.trust-list span,
.tag-cloud span,
.status-pill {
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.82);
    color: #334155;
    padding: 9px 13px;
    font-size: 0.9rem;
    font-weight: 700;
}

.hero-panel,
.card,
.form-card,
.results-card,
.problem-card,
.cta-panel,
.step-card {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.92);
    box-shadow: var(--shadow);
}

.hero-panel {
    padding: 16px;
}

.signal-card {
    min-height: 470px;
    border-radius: 20px;
    background:
        linear-gradient(180deg, rgba(21, 94, 239, 0.08), transparent 42%),
        linear-gradient(135deg, #ffffff, #f1f8fb);
    padding: 28px;
}

.signal-card h2 {
    max-width: 360px;
    margin: 24px 0;
}

.maturity-bars {
    display: grid;
    gap: 12px;
}

.maturity-row {
    display: grid;
    grid-template-columns: 44px 1fr 86px;
    align-items: center;
    gap: 12px;
    border: 1px solid var(--line);
    border-radius: 16px;
    background: #fff;
    padding: 13px;
}

.maturity-row span {
    color: var(--blue);
    font-weight: 900;
}

.maturity-row i {
    height: 8px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--blue), var(--green));
}

.section {
    padding: 72px 0;
}

.soft-section {
    background: rgba(238, 247, 251, 0.72);
}

.section-heading {
    max-width: 760px;
    margin: 0 auto 34px;
    text-align: center;
}

.problem-card,
.cta-panel,
.form-card,
.results-card {
    padding: clamp(24px, 4vw, 42px);
}

.problem-card h2,
.cta-panel h2 {
    max-width: 780px;
    margin-inline: auto;
}

.card-grid {
    display: grid;
    gap: 18px;
}

.services-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.why-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
    padding: 24px;
}

.service-card {
    min-height: 310px;
}

.service-card ul,
.results-card ul {
    margin: 18px 0 0;
    padding-left: 20px;
    color: var(--muted);
}

.service-card li {
    margin-bottom: 8px;
}

.step-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 16px;
}

.step-card {
    padding: 22px;
}

.step-card span {
    color: var(--blue);
    font-weight: 900;
}

.tag-cloud {
    justify-content: center;
    max-width: 880px;
    margin-inline: auto;
}

.mini-icon {
    display: block;
    width: 44px;
    height: 44px;
    margin-bottom: 18px;
    border-radius: 16px;
    background: linear-gradient(135deg, #dbeafe, #ccfbf1);
}

.contact-grid,
.checker-layout {
    display: grid;
    grid-template-columns: minmax(0, 0.72fr) minmax(0, 1fr);
    gap: 36px;
    align-items: start;
}

.checker-layout {
    grid-template-columns: minmax(0, 1fr) minmax(330px, 0.55fr);
}

.checker-form {
    display: grid;
    gap: 22px;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.form-grid.thirds {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

label,
fieldset legend {
    color: #233044;
    font-size: 0.93rem;
    font-weight: 800;
}

.full {
    grid-column: 1 / -1;
}

input,
select,
textarea {
    width: 100%;
    margin-top: 8px;
    border: 1px solid #cfdae7;
    border-radius: 14px;
    background: #fff;
    color: var(--ink);
    font: inherit;
    padding: 13px 14px;
    outline: none;
    transition: border-color 180ms ease, box-shadow 180ms ease;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 4px rgba(21, 94, 239, 0.12);
}

.checkbox {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.checkbox input,
.question input {
    width: auto;
    margin-top: 4px;
}

.privacy-note,
.small,
.form-status,
.legal-note {
    color: var(--muted);
    font-size: 0.9rem;
}

.question-stack {
    display: grid;
    gap: 14px;
}

.question {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 18px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: #fbfdff;
    padding: 16px;
}

.question legend {
    width: 100%;
    margin-bottom: 8px;
}

.question label {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-weight: 700;
}

.checker-hero {
    background:
        linear-gradient(135deg, rgba(21, 94, 239, 0.08), rgba(15, 159, 110, 0.08)),
        #fff;
    border-bottom: 1px solid var(--line);
}

.back-link {
    display: inline-flex;
    margin-bottom: 28px;
    color: var(--muted);
    font-weight: 800;
}

.results-card {
    position: sticky;
    top: 98px;
}

.result-grid {
    display: grid;
    gap: 12px;
    margin: 22px 0;
}

.result-grid div {
    border: 1px solid var(--line);
    border-radius: 18px;
    background: #fbfdff;
    padding: 16px;
}

.result-grid span {
    display: block;
    color: var(--muted);
    font-size: 0.84rem;
    font-weight: 800;
}

.result-grid strong {
    display: block;
    margin-top: 5px;
    color: var(--ink);
}

.legal-note {
    border-left: 4px solid var(--orange);
    background: #fffbeb;
    border-radius: 14px;
    padding: 14px;
}

.error-message {
    color: #b42318;
    font-size: 0.86rem;
    font-weight: 700;
}

.field-error {
    border-color: #f04438;
}

.form-status.success {
    color: var(--green);
    font-weight: 800;
}

.form-status.error {
    color: #b42318;
    font-weight: 800;
}

.site-footer {
    border-top: 1px solid var(--line);
    background: #ffffff;
    padding: 34px 0;
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    gap: 24px;
}

.footer-grid nav {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    color: var(--muted);
    font-weight: 700;
}

@media (max-width: 980px) {
    .main-nav {
        display: none;
    }

    .hero-grid,
    .contact-grid,
    .checker-layout {
        grid-template-columns: 1fr;
    }

    .hero-panel,
    .results-card {
        max-width: 640px;
    }

    .results-card {
        position: static;
    }

    .services-grid,
    .why-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .step-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .container {
        width: min(100% - 22px, 1160px);
    }

    .nav-shell {
        min-height: 68px;
    }

    .brand span:last-child {
        display: none;
    }

    .nav-cta {
        padding: 10px 13px;
    }

    .hero,
    .checker-hero {
        padding: 58px 0 42px;
    }

    .section {
        padding: 48px 0;
    }

    .button-row,
    .button-row .btn {
        width: 100%;
    }

    .form-grid,
    .form-grid.thirds,
    .services-grid,
    .why-grid,
    .step-grid {
        grid-template-columns: 1fr;
    }

    .maturity-row {
        grid-template-columns: 38px 1fr;
    }

    .maturity-row i {
        grid-column: 1 / -1;
        width: 100%;
    }

    .footer-grid {
        flex-direction: column;
    }
}