:root {
    --bg: #f5f7fb;
    --surface: #ffffff;
    --ink: #2a3f54;
    --muted: #73879c;
    --line: #e6ecf2;
    --primary: #26b99a;
    --primary-dark: #1f8f79;
    --shadow: 0 10px 35px rgba(42,63,84,.08);
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    min-height: 100%;
}

body {
    font-family: "Inter", sans-serif;
    color: var(--ink);
    background: radial-gradient(circle at top left, rgba(38,185,154,.08), transparent 26%), radial-gradient(circle at top right, rgba(52,152,219,.08), transparent 24%), var(--bg);
}

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

.shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.topbar {
    position: sticky;
    top: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 18px 26px;
    background: rgba(245,247,251,.9);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(230,236,242,.9);
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 800;
    letter-spacing: -.03em;
}

.brand-mark {
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    display: grid;
    place-items: center;
}

.nav {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--muted);
    flex-wrap: wrap;
}

    .nav a {
        padding: 10px 14px;
        border-radius: 999px;
        border: 1px solid transparent;
    }

        .nav a:hover {
            color: var(--ink);
            background: #fff;
            border-color: var(--line);
        }

        .nav a.active {
            background: rgba(38,185,154,.12);
            color: var(--primary-dark);
            border-color: rgba(38,185,154,.2);
        }

.hero, .section {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
}

.hero {
    display: grid;
    grid-template-columns: 1.1fr .9fr;
    gap: 26px;
    align-items: center;
    padding: 54px 0 34px;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-transform: uppercase;
    letter-spacing: .16em;
    font-size: 11px;
    font-weight: 800;
    color: var(--primary-dark);
    margin-bottom: 14px;
}

h1 {
    margin: 0 0 14px;
    font-size: clamp(42px, 7vw, 78px);
    line-height: .96;
    letter-spacing: -.05em;
}

.lead {
    max-width: 60ch;
    color: var(--muted);
    font-size: 18px;
    line-height: 1.7;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 26px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 13px 18px;
    border-radius: 12px;
    border: 1px solid var(--line);
    background: #fff;
    font-weight: 700;
    box-shadow: var(--shadow);
}

    .btn.primary {
        background: var(--primary);
        border-color: var(--primary);
        color: #fff;
    }

.panel, .feature, .stat-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 18px;
    box-shadow: var(--shadow);
}

.panel {
    padding: 18px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.stat-card {
    min-height: 112px;
    padding: 18px;
}

    .stat-card strong {
        display: block;
        font-size: 30px;
        letter-spacing: -.04em;
        margin-bottom: 4px;
    }

.section {
    padding: 0 0 54px;
}

    .section h2 {
        margin: 0 0 18px;
        font-size: 32px;
        letter-spacing: -.03em;
    }

.cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.feature {
    padding: 20px;
}

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

    .feature p {
        margin: 0;
        color: var(--muted);
        line-height: 1.65;
    }

.site-footer {
    margin-top: auto;
    padding: 24px 26px 30px;
    color: var(--muted);
    text-align: center;
}

@media (max-width: 900px) {
    .topbar {
        padding: 16px 18px;
    }

    .hero {
        grid-template-columns: 1fr;
        padding-top: 36px;
    }

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

    .nav {
        display: none;
    }
}

@media (max-width: 640px) {
    .hero, .section {
        width: min(100% - 28px, 1180px);
    }

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

    .lead {
        font-size: 16px;
    }
}

:root {
    --alert-danger-bg: #fff3f2;
    --alert-danger-border: #f7b4ad;
    --alert-danger-text: #a63b32
}

.site-alert {
    margin: 16px auto;
    padding: 12px 14px;
    max-width: 1180px;
    border-radius: 6px;
    font-size: 13px
}

.site-alert-danger {
    background: var(--alert-danger-bg);
    border: 1px solid var(--alert-danger-border);
    color: var(--alert-danger-text)
}