:root {
    --ink: #17202a;
    --muted: #667085;
    --line: #dde3ea;
    --soft: #f5f7fa;
    --accent: #1f6f5b;
}

body {
    color: var(--ink);
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.navbar-brand {
    letter-spacing: 0;
}

.hero {
    background: linear-gradient(180deg, #f8fafc 0%, #fff 100%);
    padding: 96px 0 72px;
}

.hero h1 {
    font-size: clamp(2.4rem, 6vw, 4.8rem);
    font-weight: 750;
    letter-spacing: 0;
    line-height: 1;
    margin: 12px 0 20px;
}

.lead {
    color: var(--muted);
    font-size: 1.22rem;
    max-width: 680px;
}

.eyebrow {
    color: var(--accent);
    display: inline-block;
    font-size: .82rem;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.hero-image {
    border-radius: 8px;
    box-shadow: 0 24px 70px rgba(16, 24, 32, .18);
    display: block;
    height: auto;
    width: 100%;
}

.section {
    padding: 72px 0;
}

.section.muted {
    background: var(--soft);
}

.section-heading {
    margin-bottom: 28px;
    max-width: 760px;
}

.section-heading h2,
.newsletter h2,
.about-panel h2 {
    font-size: clamp(1.8rem, 3vw, 2.8rem);
    font-weight: 720;
    letter-spacing: 0;
}

.tool-card,
.question-card,
.category-card,
.feature-card,
.latest-card,
.about-panel {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 24px;
}

.tool-card.featured {
    border-color: rgba(31, 111, 91, .32);
    box-shadow: 0 12px 34px rgba(31, 111, 91, .08);
}

.tool-card h3,
.category-card h3,
.feature-card h3,
.latest-card h3 {
    font-size: 1.25rem;
}

.question {
    color: var(--accent);
    font-weight: 700;
}

.question-grid,
.tool-list {
    display: grid;
    gap: 18px;
    grid-template-columns: repeat(5, minmax(0, 1fr));
}

.question-card i,
.feature-card i {
    color: var(--accent);
    font-size: 1.7rem;
    margin-bottom: 14px;
}

.question-card h3 {
    font-size: 1.08rem;
}

.category-card ul {
    color: var(--muted);
    margin-bottom: 0;
    padding-left: 1.1rem;
}

.newsletter {
    background: #e9f3ef;
}

.signup-form {
    display: grid;
    gap: 12px;
    grid-template-columns: 1fr 1fr auto;
}

.site-footer {
    background: #111827;
    color: #cbd5e1;
    padding: 32px 0;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    margin-bottom: 16px;
}

.footer-links a {
    color: #fff;
    text-decoration: none;
}

@media (max-width: 991px) {
    .question-grid,
    .tool-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .signup-form {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 575px) {
    .hero,
    .section {
        padding: 48px 0;
    }

    .question-grid,
    .tool-list {
        grid-template-columns: 1fr;
    }
}