*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0
}

:root {
    --font: 'Montserrat', sans-serif;
    --g: #16a872;
    --gd: #0d9060;
    --gl: #f0fdf8;
    --bg: #f4f6f8;
    --s1: #ffffff;
    --s2: #f8f9fb;
    --b1: #e5e7eb;
    --t1: #111827;
    --t2: #374151;
    --t3: #9ca3af;
    --shadow: 0 4px 24px rgba(0, 0, 0, .08);
}

html {
    scroll-behavior: smooth
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--t1);
    -webkit-font-smoothing: antialiased;
    line-height: 1.75
}

nav {
    position: sticky;
    top: 0;
    z-index: 100;
    padding: .875rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, .95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--b1);
    box-shadow: 0 1px 12px rgba(0, 0, 0, .05)
}

.logo {
    font-size: 18px;
    font-weight: 800;
    color: var(--t1);
    text-decoration: none;
    letter-spacing: -.5px
}

.logo span {
    color: var(--g)
}

.nav-back {
    font-size: 13px;
    font-weight: 600;
    color: var(--t2);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: color .15s
}

.nav-back:hover {
    color: var(--g)
}

.page-wrap {
    max-width: 780px;
    margin: 0 auto;
    padding: 3rem 2rem 5rem
}

.page-header {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--b1)
}

.page-tag {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--g);
    display: block;
    margin-bottom: .75rem
}

.page-title {
    font-size: clamp(26px, 3.5vw, 36px);
    font-weight: 900;
    letter-spacing: -.75px;
    line-height: 1.15;
    color: var(--t1);
    margin-bottom: .75rem
}

.page-meta {
    font-size: 12px;
    color: var(--t3);
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap
}

.page-meta span {
    display: flex;
    align-items: center;
    gap: 5px
}

.doc-body {
    display: flex;
    flex-direction: column;
    gap: 2.5rem
}

.doc-section h2 {
    font-size: 16px;
    font-weight: 800;
    color: var(--t1);
    margin-bottom: .75rem;
    letter-spacing: -.3px;
    padding-left: 14px;
    border-left: 3px solid var(--g)
}

.doc-section p {
    font-size: 14px;
    color: var(--t2);
    font-weight: 400;
    margin-bottom: .75rem
}

.doc-section p:last-child {
    margin-bottom: 0
}

.doc-section ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 7px;
    margin-bottom: .75rem
}

.doc-section ul li {
    font-size: 14px;
    color: var(--t2);
    display: flex;
    gap: 10px;
    align-items: flex-start
}

.doc-section ul li::before {
    content: '';
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--g);
    flex-shrink: 0;
    margin-top: 8px
}

.highlight-box {
    background: var(--gl);
    border: 1px solid rgba(22, 168, 114, .2);
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    margin-top: 1rem
}

.highlight-box p {
    color: var(--t1);
    font-weight: 500
}

.highlight-box p span {
    color: var(--g);
    font-weight: 700
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: .75rem
}

.info-cell {
    background: var(--s2);
    border: 1px solid var(--b1);
    border-radius: 10px;
    padding: .875rem 1rem
}

.info-cell-label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--t3);
    margin-bottom: 4px
}

.info-cell-val {
    font-size: 13px;
    font-weight: 600;
    color: var(--t1)
}

.warn-box {
    background: #fff7ed;
    border: 1px solid #fed7aa;
    border-radius: 12px;
    padding: 1.25rem 1.5rem;
    margin-top: 1rem
}

.warn-box p {
    color: #92400e;
    font-size: 14px
}

footer {
    border-top: 1px solid var(--b1);
    padding: 1.5rem 2rem;
    text-align: center;
    background: var(--s1)
}

footer p {
    font-size: 12px;
    color: var(--t3)
}

footer a {
    color: var(--t3);
    text-decoration: none;
    font-weight: 500;
    transition: color .15s
}

footer a:hover {
    color: var(--g)
}

@media(max-width:600px) {
    .page-wrap {
        padding: 2rem 1.25rem 4rem
    }

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