* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background: #f4f7f6;
    color: #0f172a;
}

a {
    color: inherit;
}

.container {
    width: min(94vw, 1180px);
    margin: 0 auto;
}

/* =========================
   TOPBAR
========================= */

.topbar {
    background: #020617;
    color: #fff;
    padding: 18px 0;
}

.topbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
}

.brand {
    font-weight: 900;
    letter-spacing: 1px;
    font-size: 22px;
    text-decoration: none;
}

.brand span {
    color: #22c55e;
}

.nav {
    display: flex;
    gap: 22px;
    align-items: center;
    flex-wrap: wrap;
}

.nav a {
    color: #e5e7eb;
    text-decoration: none;
    font-weight: 700;
    font-size: 15px;
}

.nav a:hover,
.nav a:focus-visible,
.nav a[aria-current="page"] {
    color: #22c55e;
}

/* =========================
   HERO
========================= */

.hero {
    position: relative;
    overflow: hidden;
    background:
        radial-gradient(circle at 78% 18%, rgba(34, 197, 94, 0.32), transparent 24%),
        radial-gradient(circle at 15% 80%, rgba(59, 130, 246, 0.25), transparent 28%),
        linear-gradient(135deg, #020617 0%, #07152d 48%, #0f172a 100%);
    color: #fff;
    padding: 78px 0 82px;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    opacity: 0.16;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.10) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.10) 1px, transparent 1px);
    background-size: 46px 46px;
}

.hero-inner {
    position: relative;
    z-index: 2;
    max-width: 900px;
}

.eyebrow,
.section-eyebrow {
    color: #93c5fd;
    font-size: 14px;
    font-weight: 900;
    letter-spacing: 2px;
    margin-bottom: 18px;
    text-transform: uppercase;
}

.hero h1 {
    font-size: clamp(44px, 5vw, 72px);
    line-height: 1.02;
    letter-spacing: -2px;
    margin: 0 0 22px;
}

.hero h1 span {
    display: block;
    color: #22c55e;
}

.hero p {
    color: #dbeafe;
    font-size: 18px;
    line-height: 1.65;
    max-width: 800px;
    margin: 0;
}

.hero-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 28px;
}

.hero-note {
    margin-top: 14px;
    color: #cbd5e1;
    font-size: 14px;
    line-height: 1.5;
}

/* =========================
   MAIN
========================= */

main {
    padding: 30px 0 20px;
}

.card {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 18px;
    padding: 30px;
    box-shadow: 0 2px 18px rgba(0, 0, 0, 0.08);
    margin-bottom: 28px;
}

.card h2 {
    margin: 0 0 10px;
    font-size: 30px;
    color: #0f172a;
}

.card p {
    color: #475569;
    line-height: 1.65;
    margin-top: 0;
    font-size: 16px;
}

.card p:last-child {
    margin-bottom: 0;
}

.intro-card {
    background: linear-gradient(135deg, #ffffff, #f8fafc);
}

/* =========================
   FEATURE GRID
========================= */

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 22px;
}

.feature-card {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    padding: 22px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.feature-card h3 {
    margin: 0 0 8px;
    font-size: 18px;
    color: #0f172a;
}

.feature-card p {
    margin: 0;
    color: #475569;
    font-size: 14px;
    line-height: 1.55;
}

/* =========================
   PROCESS GRID
========================= */

.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    margin-top: 22px;
}

.process-step {
    background: #f8fafc;
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    padding: 22px;
}

.step-number {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
    border-radius: 50%;
    background: #dcfce7;
    color: #166534;
    font-weight: 900;
}

.process-step h3 {
    margin: 0 0 8px;
    font-size: 18px;
}

.process-step p {
    margin: 0;
    color: #475569;
    font-size: 14px;
    line-height: 1.55;
}

/* =========================
   COMPARISON
========================= */

.comparison-section {
    background: linear-gradient(135deg, #eff6ff, #ffffff);
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 22px;
}

.comparison-card {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid #dbeafe;
    border-radius: 16px;
    padding: 24px;
}

.comparison-card.featured {
    border-color: #bbf7d0;
    background: linear-gradient(135deg, #ecfdf5, #ffffff);
}

.comparison-label {
    color: #2563eb;
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 1.5px;
    margin-bottom: 8px;
}

.comparison-card.featured .comparison-label {
    color: #15803d;
}

.comparison-card h3 {
    margin: 0 0 10px;
    font-size: 24px;
}

.comparison-card ul {
    color: #475569;
    line-height: 1.65;
    padding-left: 22px;
}

.text-link {
    display: inline-block;
    margin-top: 8px;
    color: #15803d;
    font-weight: 900;
    text-decoration: none;
}

.text-link:hover,
.text-link:focus-visible {
    text-decoration: underline;
}

/* =========================
   TRUST GRID
========================= */

.trust-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 22px;
}

.trust-card {
    background: #ecfdf5;
    border: 1px solid #d1fae5;
    border-radius: 14px;
    padding: 20px;
}

.trust-card h3 {
    margin: 0 0 7px;
    color: #065f46;
    font-size: 18px;
}

.trust-card p {
    margin: 0;
    font-size: 14px;
}

.supporting-note {
    margin-top: 20px !important;
    padding: 14px 16px;
    background: #f8fafc;
    border-left: 4px solid #22c55e;
    border-radius: 8px;
}

/* =========================
   METHODOLOGY / RESPONSIBLE USE
========================= */

.methodology-section {
    background: linear-gradient(135deg, #f8fafc, #ffffff);
}

/* =========================
   FAQ
========================= */

.faq-list {
    display: grid;
    gap: 16px;
    margin-top: 22px;
}

.faq-item {
    background: #f8fafc;
    border: 1px solid #e5e7eb;
    border-radius: 14px;
    padding: 20px;
}

.faq-item h3 {
    margin: 0 0 8px;
    font-size: 18px;
}

.faq-item p {
    margin: 0;
    color: #475569;
    font-size: 15px;
    line-height: 1.6;
}

/* =========================
   BUTTONS
========================= */

.btn-primary,
.btn-secondary {
    display: inline-block;
    padding: 13px 25px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 900;
    border: none;
    cursor: pointer;
    font-size: 15px;
}

.btn-primary {
    background: #22c55e;
    color: #052e16;
}

.btn-primary:hover,
.btn-primary:focus-visible {
    background: #16a34a;
    color: #fff;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.10);
    color: #fff;
    border: 1px solid rgba(203, 213, 225, 0.70);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
    background: #fff;
    color: #0f172a;
}

/* =========================
   FINAL CTA
========================= */

.final-cta {
    background:
        radial-gradient(circle at 80% 20%, rgba(34, 197, 94, 0.18), transparent 30%),
        linear-gradient(135deg, #020617, #111827);
    color: #fff;
    text-align: center;
    border-radius: 20px;
    padding: 38px 34px;
    margin-bottom: 50px;
}

.final-cta .section-eyebrow {
    margin-bottom: 14px;
}

.final-cta h2 {
    margin: 0 0 10px;
    font-size: 30px;
    color: #fff;
}

.final-cta p {
    color: #cbd5e1;
    max-width: 760px;
    margin: 0 auto 20px;
    line-height: 1.55;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.cta-note {
    margin-top: 16px !important;
    margin-bottom: 0 !important;
    font-size: 14px;
    color: #94a3b8 !important;
}

/* =========================
   FOOTER
========================= */

.site-footer {
    margin-top: 30px;
    padding: 34px 0;
    background: #020617;
    color: #cbd5e1;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-brand {
    font-weight: 900;
    color: #fff;
    margin-bottom: 6px;
}

.footer-brand span {
    color: #22c55e;
}

.footer-copy {
    font-size: 14px;
    color: #94a3b8;
}

.footer-nav {
    display: flex;
    gap: 18px;
    flex-wrap: wrap;
}

.footer-nav a {
    color: #cbd5e1;
    text-decoration: none;
    font-size: 14px;
    font-weight: 700;
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
    color: #22c55e;
}

/* =========================
   ACCESSIBILITY
========================= */

a:focus-visible {
    outline: 3px solid #60a5fa;
    outline-offset: 3px;
}

/* =========================
   RESPONSIVE
========================= */

@media (max-width: 1000px) {
    .process-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    .feature-grid,
    .trust-grid,
    .comparison-grid {
        grid-template-columns: 1fr;
    }

    .topbar-inner {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 700px) {
    .container {
        width: 100%;
        padding: 0 16px;
    }

    .hero {
        padding: 52px 0 58px;
        text-align: center;
    }

    .hero h1 {
        font-size: 40px;
        letter-spacing: -1px;
    }

    .hero p {
        font-size: 16px;
        line-height: 1.55;
    }

    .hero-actions,
    .cta-actions {
        flex-direction: column;
        align-items: stretch;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        text-align: center;
    }

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

    .card {
        padding: 20px;
        border-radius: 14px;
    }

    .card h2 {
        font-size: 24px;
    }

    .final-cta {
        padding: 28px 18px;
    }

    .final-cta h2 {
        font-size: 24px;
    }

    .footer-inner {
        flex-direction: column;
        align-items: flex-start;
    }
}