:root {
    --bg: #f4f8fb;
    --surface: #ffffff;
    --surface-strong: #e8f3f2;
    --text: #123554;
    --muted: #44607a;
    --primary: #0b8b7a;
    --primary-dark: #076d61;
    --stroke: #cfe0ea;
    --shadow: 0 12px 32px rgba(8, 37, 62, 0.14);
    --radius: 18px;
    --hero-overlay-left: 0.72;
    --hero-overlay-right: 0.24;
    --hero-panel-bg: 0.20;
    --hero-panel-border: 0.28;
}

body.hero-tone-light {
    --hero-overlay-left: 0.40;
    --hero-overlay-right: 0.01;
    --hero-panel-bg: 0.14;
    --hero-panel-border: 0.34;
}

body.hero-tone-medium {
    --hero-overlay-left: 0.72;
    --hero-overlay-right: 0.24;
    --hero-panel-bg: 0.20;
    --hero-panel-border: 0.28;
}

body.hero-tone-dark {
    --hero-overlay-left: 0.82;
    --hero-overlay-right: 0.34;
    --hero-panel-bg: 0.28;
    --hero-panel-border: 0.20;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: "Avenir Next", "Nunito", "Trebuchet MS", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 8% 4%, rgba(11, 139, 122, 0.14), transparent 42%),
        radial-gradient(circle at 92% 12%, rgba(29, 112, 177, 0.14), transparent 45%),
        var(--bg);
    line-height: 1.5;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
}

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

.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    z-index: 999;
    padding: 0.75rem 1rem;
    background: var(--surface);
    border-radius: 0 0 12px 12px;
}

.skip-link:focus {
    left: 1rem;
}

.container {
    width: min(1100px, 92vw);
    margin: 0 auto;
}

.section {
    padding: 3.75rem 0;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 30;
    backdrop-filter: blur(8px);
    background: rgba(244, 248, 251, 0.94);
    border-bottom: 1px solid var(--stroke);
}

.nav-wrap {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 4.5rem;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-weight: 800;
    letter-spacing: 0.02em;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 2rem;
    height: 2rem;
    border-radius: 999px;
    background: linear-gradient(135deg, #47b6a7, #0b8b7a);
    color: #fff;
    font-size: 0.9rem;
}

.menu-toggle {
    border: 1px solid var(--stroke);
    background: var(--surface);
    color: var(--text);
    border-radius: 999px;
    padding: 0.5rem 0.9rem;
    font-weight: 700;
}

.main-nav {
    position: absolute;
    right: 4vw;
    top: 4.2rem;
    display: none;
    flex-direction: column;
    min-width: 13rem;
    border-radius: 12px;
    border: 1px solid var(--stroke);
    background: var(--surface);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.main-nav a {
    padding: 0.8rem 1rem;
    font-weight: 700;
    color: var(--muted);
}

.main-nav a:hover,
.main-nav a:focus-visible {
    background: var(--surface-strong);
    color: var(--text);
}

.main-nav.is-open {
    display: flex;
}

.hero-grid {
    display: grid;
    gap: 1.8rem;
    align-items: center;
}

.hero {
    --hero-bg: url("../images/hero-bg-fallback.jpg");
    background-image:
        linear-gradient(
            110deg,
            rgb(8 35 57 / var(--hero-overlay-left)),
            rgb(8 35 57 / var(--hero-overlay-right))
        ),
        var(--hero-bg);
    background-size: cover;
    background-position: center;
    color: #eaf7ff;
}

@supports (background-image: image-set(url("../images/hero-bg-mobile.webp") type("image/webp") 1x)) {
    .hero {
        --hero-bg: image-set(
            url("../images/hero-bg-mobile.webp") type("image/webp") 1x,
            url("../images/hero-bg-fallback.jpg") type("image/jpeg") 1x
        );
    }
}

.hero-copy {
    max-width: 42rem;
    border-radius: var(--radius);
    padding: 1.1rem;
    background: rgb(8 35 57 / var(--hero-panel-bg));
    border: 1px solid rgb(234 247 255 / var(--hero-panel-border));
}

.eyebrow {
    margin: 0 0 0.7rem;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--primary);
}

h1,
h2,
h3 {
    margin-top: 0;
    line-height: 1.15;
}

h1 {
    margin-bottom: 0.95rem;
    font-size: clamp(1.85rem, 5vw, 3.2rem);
}

h2 {
    margin-bottom: 1.25rem;
    font-size: clamp(1.5rem, 4.6vw, 2.3rem);
}

.hero-lead {
    color: #e0edf8;
    font-size: 1.05rem;
    max-width: 62ch;
}

.hero-cta-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
    margin-top: 1.3rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    padding: 0.82rem 1.2rem;
    border: 1px solid transparent;
    font-weight: 800;
    transition: transform 180ms ease, background-color 180ms ease, color 180ms ease;
}

.btn:hover,
.btn:focus-visible {
    transform: translateY(-1px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #22ad92);
    color: #fff;
}

.btn-primary:hover,
.btn-primary:focus-visible {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
}

.btn-light {
    border-color: rgba(234, 247, 255, 0.55);
    background: rgba(255, 255, 255, 0.14);
    color: #f3fbff;
}

.btn-large {
    padding: 1rem 1.5rem;
}

.micro {
    margin-top: 0.8rem;
    color: #cbe2f5;
    font-size: 0.88rem;
}

.hero-media {
    position: relative;
    margin: 0;
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--stroke);
    box-shadow: var(--shadow);
    background: var(--surface);
    transform-origin: center;
    animation: float-in 550ms ease-out both;
}

.hero-media figcaption {
    padding: 0.6rem 0.9rem;
    background: #f8fbfd;
    color: var(--muted);
    font-size: 0.8rem;
}

.feature-section {
    background: linear-gradient(180deg, rgba(12, 68, 110, 0.04), rgba(12, 68, 110, 0));
}

.feature-grid {
    display: grid;
    gap: 1rem;
}

.feature-card {
    background: var(--surface);
    border: 1px solid var(--stroke);
    border-radius: var(--radius);
    padding: 1.2rem;
    box-shadow: 0 8px 20px rgba(13, 64, 102, 0.08);
}

.feature-icon {
    display: inline-grid;
    place-items: center;
    width: 2.2rem;
    height: 2.2rem;
    border-radius: 999px;
    background: var(--surface-strong);
}

.feature-card h3 {
    margin: 0.8rem 0 0.45rem;
}

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

.process-list {
    margin: 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 0.9rem;
}

.process-list li {
    background: var(--surface);
    border: 1px solid var(--stroke);
    border-radius: var(--radius);
    padding: 1.15rem;
    counter-increment: steps;
}

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

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

.audience-card {
    border-radius: var(--radius);
    border: 1px solid var(--stroke);
    background: var(--surface);
    padding: 0.7rem;
    display: grid;
    gap: 0.65rem;
    justify-items: stretch;
}

.audience-media {
    margin: 0;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--stroke);
    aspect-ratio: 1 / 1;
}

.audience-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.audience-card h3 {
    margin: 0 0.35rem 0.25rem;
    font-size: 1rem;
}

.data-section {
    background: linear-gradient(145deg, #083f64, #0d8d7f);
    color: #e8f6ff;
}

.data-grid {
    display: grid;
    gap: 1.4rem;
}

.data-list {
    padding-left: 1.1rem;
}

.data-list li {
    margin-bottom: 0.5rem;
}

.data-panel {
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--radius);
    padding: 1rem;
    background: rgba(255, 255, 255, 0.08);
}

.data-panel ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0.5rem;
}

.data-panel a {
    text-decoration: underline;
    text-underline-offset: 2px;
}

.faq-list {
    display: grid;
    gap: 0.8rem;
}

.faq-list details {
    border: 1px solid var(--stroke);
    background: var(--surface);
    border-radius: 12px;
    padding: 0.9rem 1rem;
}

.faq-list summary {
    cursor: pointer;
    font-weight: 800;
}

.faq-list p {
    margin: 0.7rem 0 0;
    color: var(--muted);
}

.cta-section {
    padding-top: 1.8rem;
}

.cta-wrap {
    border-radius: var(--radius);
    background:
        linear-gradient(110deg, rgba(9, 125, 107, 0.96), rgba(11, 67, 103, 0.96)),
        radial-gradient(circle at 20% 18%, rgba(255, 255, 255, 0.25), transparent 42%);
    color: #e9feff;
    padding: 1.6rem;
    display: grid;
    gap: 1.2rem;
    align-items: center;
}

.site-footer {
    border-top: 1px solid var(--stroke);
    padding: 1.5rem 0 2.3rem;
    color: var(--muted);
}

.footer-grid {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.85rem;
}

@keyframes float-in {
    from {
        opacity: 0;
        transform: translateY(12px) scale(0.99);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@media (max-width: 699px) {
    .hero {
        background-image: none;
        background-color: #0c3d62;
    }

    .hero-copy {
        background: rgb(8 35 57 / 0.36);
        border-color: rgb(234 247 255 / 0.38);
    }
}

@media (min-width: 700px) {
    .menu-toggle {
        display: none;
    }

    .main-nav {
        position: static;
        display: flex;
        min-width: auto;
        flex-direction: row;
        border: 0;
        box-shadow: none;
        background: transparent;
        gap: 0.3rem;
    }

    .main-nav a {
        border-radius: 999px;
        padding: 0.5rem 0.8rem;
    }

    .hero {
        min-height: 34rem;
        display: grid;
        align-items: center;
    }

    .hero.section {
        padding: 2.8rem 0;
    }

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

    .hero-copy {
        padding: 1.55rem;
    }

    .hero-copy h1 {
        font-size: clamp(1.85rem, 3vw, 2.35rem);
    }

    @supports (background-image: image-set(url("../images/hero-bg-desktop.webp") type("image/webp") 1x)) {
        .hero {
            --hero-bg: image-set(
                url("../images/hero-bg-desktop.webp") type("image/webp") 1x,
                url("../images/hero-bg-fallback.jpg") type("image/jpeg") 1x
            );
        }
    }

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

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

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

    .data-grid {
        grid-template-columns: 1.4fr 0.6fr;
    }

    .cta-wrap {
        padding: 2.2rem;
        grid-template-columns: 1fr auto;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }
}