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

:root {
    --bg: #0a0c0f;
    --surface: #111418;
    --surface2: #171c23;
    --border: #222a35;
    --accent: #25D366;
    --glow: rgba(37, 211, 102, .15);
    --text: #eef1f5;
    --muted: #5e6e80;
    --mid: #94a3b6;
}

html {
    scroll-behavior: smooth
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'DM Sans', sans-serif;
    font-size: 15px;
    line-height: 1.7;
    min-height: 100vh
}

.icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0
}

.icon svg {
    display: block
}

.hero {
    background: linear-gradient(160deg, #071210 0%, #0a0c0f 65%);
    border-bottom: 1px solid var(--border);
    padding: 64px 40px 52px;
    text-align: center;
    position: relative;
    overflow: hidden
}

.hero::before {
    content: '';
    position: absolute;
    top: -80px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 340px;
    background: radial-gradient(ellipse, rgba(37, 211, 102, .16) 0%, transparent 68%);
    pointer-events: none
}

.hero-logo {
    width: 72px;
    height: 72px;
    margin: 0 auto 22px;
    background: linear-gradient(145deg, #1fba58, #128C7E);
    border-radius: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 40px rgba(37, 211, 102, .35);
    animation: float 3.5s ease-in-out infinite
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0)
    }

    50% {
        transform: translateY(-7px)
    }
}

.hero h1 {
    font-family: 'Syne', sans-serif;
    font-size: clamp(24px, 4vw, 36px);
    font-weight: 800;
    letter-spacing: -.02em;
    background: linear-gradient(135deg, #fff 25%, var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px
}

.hero p {
    color: var(--mid);
    font-size: 15.5px;
    max-width: 460px;
    margin: 0 auto 26px
}

.badges {
    display: flex;
    gap: 8px;
    justify-content: center;
    flex-wrap: wrap
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 5px 13px;
    color: var(--mid);
    background: var(--surface)
}

.badge.green {
    border-color: rgba(37, 211, 102, .4);
    color: var(--accent);
    background: var(--glow)
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 52px 28px 90px
}

section {
    margin-bottom: 56px
}

.section-label {
    font-family: 'Syne', sans-serif;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .13em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 10px
}

h2 {
    font-family: 'Syne', sans-serif;
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 20px
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(228px, 1fr));
    gap: 14px
}

.feature-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px;
    transition: border-color .2s, transform .2s
}

.feature-card:hover {
    border-color: rgba(37, 211, 102, .4);
    transform: translateY(-2px)
}

.feature-card-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--surface2);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px
}

.feature-card h3 {
    font-family: 'Syne', sans-serif;
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 6px
}

.feature-card p {
    font-size: 13px;
    color: var(--mid);
    line-height: 1.6
}

.steps {
    display: flex;
    flex-direction: column
}

.step {
    display: grid;
    grid-template-columns: 52px 1fr;
    gap: 0 18px;
    padding: 22px 0;
    border-bottom: 1px solid var(--border)
}

.step:last-child {
    border-bottom: none
}

.step-num {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 2px
}

.step-circle {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--surface2);
    border: 2px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Syne', sans-serif;
    font-weight: 800;
    font-size: 14px;
    color: var(--accent);
    flex-shrink: 0;
    transition: all .3s
}

.step:hover .step-circle {
    background: var(--glow);
    border-color: var(--accent);
    box-shadow: 0 0 14px rgba(37, 211, 102, .25)
}

.step-body h3 {
    font-family: 'Syne', sans-serif;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 7px
}

.step-body p {
    color: var(--mid);
    font-size: 14px;
    line-height: 1.65
}

code {
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 5px;
    padding: 1px 7px;
    font-size: 12.5px;
    color: #a8c5a0;
    font-family: monospace
}

.code-block {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    margin: 14px 0
}

.code-bar {
    background: var(--surface2);
    padding: 8px 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border)
}

.code-bar span {
    font-size: 11px;
    color: var(--muted);
    font-family: 'Syne', sans-serif;
    letter-spacing: .06em;
    text-transform: uppercase
}

.code-bar button {
    font-size: 11px;
    color: var(--mid);
    background: none;
    border: none;
    cursor: pointer;
    font-family: 'DM Sans', sans-serif;
    transition: color .2s
}

.code-bar button:hover {
    color: var(--accent)
}

pre {
    padding: 14px 16px;
    font-size: 13px;
    color: #a8c5a0;
    line-height: 1.6;
    overflow-x: auto;
    font-family: monospace
}

.lang-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px
}

.lang-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 7px 13px;
    font-size: 13px
}

.alert {
    display: flex;
    gap: 13px;
    align-items: flex-start;
    background: rgba(245, 158, 11, .07);
    border: 1px solid rgba(245, 158, 11, .22);
    border-radius: 11px;
    padding: 15px 17px;
    margin: 18px 0
}

.alert p {
    font-size: 13.5px;
    color: #fbbf24;
    line-height: 1.65
}

.alert p strong {
    font-weight: 600
}

.tip {
    display: flex;
    gap: 13px;
    align-items: flex-start;
    background: var(--glow);
    border: 1px solid rgba(37, 211, 102, .22);
    border-radius: 11px;
    padding: 15px 17px;
    margin: 18px 0
}

.tip p {
    font-size: 13.5px;
    color: #86efac;
    line-height: 1.65
}

.changelog {
    display: flex;
    flex-direction: column;
    gap: 10px
}

.change-row {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 13px 16px
}

.change-tag {
    font-family: 'Syne', sans-serif;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    border-radius: 5px;
    padding: 3px 8px;
    white-space: nowrap;
    flex-shrink: 0;
    margin-top: 2px
}

.tag-fix {
    background: rgba(96, 165, 250, .12);
    color: #60a5fa;
    border: 1px solid rgba(96, 165, 250, .25)
}

.tag-feat {
    background: rgba(37, 211, 102, .12);
    color: var(--accent);
    border: 1px solid rgba(37, 211, 102, .25)
}

.tag-remove {
    background: rgba(248, 113, 113, .12);
    color: #f87171;
    border: 1px solid rgba(248, 113, 113, .25)
}

.change-row p {
    font-size: 13.5px;
    color: var(--mid);
    line-height: 1.6
}

.change-row p strong {
    color: var(--text);
    font-weight: 500
}

.cta-box {
    background: linear-gradient(135deg, #0c1c13 0%, #0a0f0d 100%);
    border: 1px solid rgba(37, 211, 102, .28);
    border-radius: 18px;
    padding: 36px;
    text-align: center;
    position: relative;
    overflow: hidden
}

.cta-box::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 220px;
    height: 220px;
    background: radial-gradient(circle, rgba(37, 211, 102, .12) 0%, transparent 70%)
}

.cta-box h2 {
    font-size: 20px;
    margin-bottom: 9px
}

.cta-box p {
    color: var(--mid);
    font-size: 14px
}

.sep {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 44px 0
}

.sep::before,
.sep::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border)
}

.sep span {
    font-size: 10px;
    color: var(--muted);
    font-family: 'Syne', sans-serif;
    letter-spacing: .1em;
    text-transform: uppercase
}

footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 28px;
    text-align: center
}

.footer-brand {
    font-family: 'Syne', sans-serif;
    font-weight: 700;
    font-size: 14px;
    color: var(--text);
    margin-bottom: 14px
}

.footer-brand a {
    color: var(--accent);
    text-decoration: none;
    transition: opacity .2s
}

.footer-brand a:hover {
    opacity: .8
}

.social-links {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap
}

.social-link {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 12px;
    color: var(--mid);
    text-decoration: none;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 7px 13px;
    transition: border-color .2s, color .2s
}

.social-link:hover {
    border-color: var(--accent);
    color: var(--text)
}

.footer-links {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid var(--border)
}

.footer-links a {
    font-size: 12px;
    color: var(--muted);
    text-decoration: none;
    transition: color .2s
}

.footer-links a:hover {
    color: var(--accent)
}

.social-link svg {
    width: 16px;
    height: 16px
}