:root {
    color-scheme: dark;
    --bg: #030504;
    --surface: #0b100d;
    --surface-2: #111814;
    --line: rgba(255, 255, 255, 0.09);
    --line-strong: rgba(255, 255, 255, 0.16);
    --text: #f7faf8;
    --muted: #98a59f;
    --green: #00c896;
    --green-strong: #19e0ad;
    --green-soft: rgba(0, 200, 150, 0.11);
    --red: #ff2738;
    --font: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    background: var(--bg);
}

body {
    min-width: 320px;
    margin: 0;
    background:
        radial-gradient(circle at 82% 5%, rgba(0, 200, 150, 0.08), transparent 28rem),
        radial-gradient(circle at 7% 75%, rgba(255, 39, 56, 0.045), transparent 24rem),
        var(--bg);
    color: var(--text);
    font-family: var(--font);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

a:focus-visible {
    outline: 3px solid rgba(0, 200, 150, 0.38);
    outline-offset: 3px;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 30;
    border-bottom: 1px solid var(--line);
    background: rgba(3, 5, 4, 0.88);
    backdrop-filter: blur(18px);
}

.header-inner {
    display: flex;
    width: min(1160px, calc(100% - 36px));
    min-height: 74px;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    margin: 0 auto;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 0.9rem;
    font-weight: 900;
    letter-spacing: 0.08em;
    text-decoration: none;
}

.header-brand img {
    width: 52px;
    height: 52px;
    object-fit: contain;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 28px;
}

.header-nav a {
    color: var(--muted);
    font-size: 0.82rem;
    font-weight: 700;
    text-decoration: none;
}

.header-nav a:hover { color: var(--text); }

.button {
    display: inline-flex;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    padding: 0 18px;
    border: 1px solid transparent;
    border-radius: 13px;
    font-size: 0.86rem;
    font-weight: 850;
    text-decoration: none;
    transition: 150ms ease;
}

.button:hover { transform: translateY(-1px); }
.button-small { min-height: 42px; padding: 0 15px; font-size: 0.78rem; }
.button-primary { background: var(--green); color: #00150f; }
.button-primary:hover { background: var(--green-strong); }
.button-secondary { border-color: var(--line-strong); background: rgba(255,255,255,.035); }
.button-secondary:hover { border-color: rgba(0, 200, 150, 0.3); background: var(--green-soft); }

main { overflow: hidden; }

.hero {
    display: grid;
    width: min(1160px, calc(100% - 36px));
    min-height: calc(100vh - 75px);
    min-height: calc(100svh - 75px);
    grid-template-columns: minmax(0, 1.08fr) minmax(340px, .92fr);
    gap: 50px;
    align-items: center;
    margin: 0 auto;
    padding: 70px 0;
}

.tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 18px;
    color: var(--green-strong);
    font-size: 0.72rem;
    font-weight: 900;
    letter-spacing: .15em;
    text-transform: uppercase;
}

.tag span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--green);
    box-shadow: 0 0 14px rgba(0, 200, 150, .8);
}

.hero h1 {
    max-width: 720px;
    margin: 0;
    font-size: clamp(3.3rem, 8vw, 7.1rem);
    line-height: .9;
    letter-spacing: -.075em;
}

.hero-copy > p {
    max-width: 610px;
    margin: 26px 0;
    color: var(--muted);
    font-size: clamp(.98rem, 2vw, 1.12rem);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.quick-facts {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 22px;
    margin-top: 32px;
    color: var(--muted);
    font-size: .78rem;
}

.quick-facts b { color: var(--text); }

.hero-visual {
    position: relative;
    display: grid;
    min-height: 520px;
    place-items: center;
}

.hero-visual img {
    position: relative;
    z-index: 2;
    width: min(500px, 100%);
    height: auto;
    object-fit: contain;
    filter: drop-shadow(0 24px 70px rgba(0, 0, 0, .55));
}

.logo-halo {
    position: absolute;
    width: 72%;
    aspect-ratio: 1;
    border: 1px solid rgba(0, 200, 150, .16);
    border-radius: 50%;
    box-shadow: 0 0 100px rgba(0, 200, 150, .09), inset 0 0 90px rgba(0, 200, 150, .04);
}

.section {
    width: min(1160px, calc(100% - 36px));
    margin: 0 auto;
    padding: 110px 0;
    scroll-margin-top: 70px;
}

.section-heading-wrap {
    max-width: 680px;
    margin-bottom: 40px;
}

.section-label {
    display: block;
    margin-bottom: 10px;
    color: var(--green);
    font-size: .7rem;
    font-weight: 900;
    letter-spacing: .14em;
    text-transform: uppercase;
}

.section h2 {
    margin: 0;
    font-size: clamp(2rem, 5vw, 4.2rem);
    line-height: 1;
    letter-spacing: -.055em;
}

.section p { color: var(--muted); }
.section-heading-wrap p { margin: 16px 0 0; }

.benefit-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 13px;
}

.info-card {
    min-height: 270px;
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: 22px;
    background: linear-gradient(145deg, rgba(17, 24, 20, .85), rgba(8, 11, 9, .9));
}

.card-icon {
    display: grid;
    width: 48px;
    height: 48px;
    place-items: center;
    border: 1px solid rgba(0, 200, 150, .2);
    border-radius: 14px;
    background: var(--green-soft);
    color: var(--green-strong);
}

.card-icon svg { width: 23px; height: 23px; }
.info-card h3 { margin: 50px 0 10px; font-size: 1.05rem; }
.info-card p { margin: 0; font-size: .84rem; }

.price-panel {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(280px, .7fr);
    gap: 34px;
    align-items: center;
    padding: 44px;
    border: 1px solid rgba(0, 200, 150, .18);
    border-radius: 28px;
    background:
        linear-gradient(135deg, rgba(0, 200, 150, .085), transparent 55%),
        rgba(10, 14, 12, .9);
}

.price-panel > div:first-child p { max-width: 600px; margin: 18px 0 0; }
.price-list { display: grid; gap: 0; }
.price-list div { display: flex; justify-content: space-between; gap: 24px; padding: 11px 0; border-bottom: 1px solid var(--line); font-size: .82rem; }
.price-list span { color: var(--muted); }
.price-list b { color: var(--green-strong); }
.price-panel > .button { grid-column: 1 / -1; justify-self: start; }

.steps {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 13px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.steps li {
    min-height: 185px;
    padding: 25px;
    border: 1px solid var(--line);
    border-radius: 20px;
    background: rgba(255, 255, 255, .022);
}

.steps li > span {
    display: grid;
    width: 34px;
    height: 34px;
    place-items: center;
    border-radius: 10px;
    background: var(--green-soft);
    color: var(--green-strong);
    font-size: .78rem;
    font-weight: 900;
}

.steps h3 { margin: 27px 0 7px; font-size: .95rem; }
.steps p { margin: 0; font-size: .8rem; }

.support-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    margin-bottom: 90px;
    padding: 42px;
    border: 1px solid var(--line);
    border-radius: 24px;
    background: rgba(255, 255, 255, .022);
}

.support-section h2 { font-size: clamp(1.6rem, 4vw, 3rem); }
.support-section p { max-width: 600px; margin: 13px 0 0; }
.support-section .button { flex: 0 0 auto; }

.site-footer {
    display: flex;
    width: min(1160px, calc(100% - 36px));
    min-height: 84px;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin: 0 auto;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: .76rem;
}

.site-footer span { color: var(--text); font-weight: 900; letter-spacing: .08em; }

@media (max-width: 850px) {
    .header-nav { display: none; }
    .hero { grid-template-columns: 1fr; padding-top: 54px; }
    .hero-visual { min-height: 380px; grid-row: 1; }
    .hero-visual img { width: min(400px, 90%); }
    .benefit-grid, .steps { grid-template-columns: 1fr; }
    .info-card { min-height: 210px; }
    .info-card h3 { margin-top: 30px; }
    .price-panel { grid-template-columns: 1fr; }
    .price-panel > .button { grid-column: auto; }
}

@media (max-width: 580px) {
    .header-inner { width: min(100% - 24px, 1160px); min-height: 66px; }
    .header-brand img { width: 44px; height: 44px; }
    .header-brand span { display: none; }
    .button-small { min-height: 40px; }
    .hero, .section, .site-footer { width: min(100% - 28px, 1160px); }
    .hero { min-height: auto; gap: 20px; padding: 32px 0 64px; }
    .hero-visual { min-height: 280px; }
    .hero h1 { font-size: clamp(3rem, 18vw, 4.8rem); }
    .hero-actions { flex-direction: column; }
    .hero-actions .button { width: 100%; }
    .quick-facts { display: grid; grid-template-columns: 1fr 1fr; }
    .section { padding: 72px 0; }
    .price-panel { padding: 27px 20px; border-radius: 22px; }
    .price-panel > .button { width: 100%; }
    .support-section { align-items: stretch; flex-direction: column; margin-bottom: 60px; padding: 28px 20px; }
    .support-section .button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    * { transition-duration: .01ms !important; }
}