:root {
    --bg: #000;
    --bg-soft: #0a0a0a;
    --bg-card: #131313;
    --bg-card-hi: #181818;
    --border: rgba(255, 255, 255, 0.08);
    --border-hi: rgba(255, 255, 255, 0.16);
    --text: #f7f7f7;
    --text-2: #b8b8b8;
    --text-3: #7a7a7a;
    --muted: #555;
    --accent: #0EA5E9;
    --accent-hi: #38BDF8;
    --accent-soft: rgba(14, 165, 233, 0.14);
    --accent-glow: rgba(14, 165, 233, 0.35);
    --radius: 20px;
    --radius-sm: 14px;
    --shadow-card: 0 1px 0 rgba(255, 255, 255, 0.04) inset, 0 24px 60px -24px rgba(0, 0, 0, 0.7);
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

html, body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', 'Google Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    font-weight: 400;
    line-height: 1.5;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

body {
    min-height: 100vh;
    background:
        radial-gradient(ellipse 70% 50% at 50% -10%, rgba(14, 165, 233, 0.10) 0%, transparent 60%),
        radial-gradient(ellipse 60% 40% at 50% 120%, rgba(255, 255, 255, 0.04) 0%, transparent 60%),
        #000;
}

::selection {
    background: var(--accent);
    color: #001018;
}

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

button {
    font: inherit;
    color: inherit;
}

img, svg {
    display: block;
    max-width: 100%;
}

.bg-glow {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background:
        radial-gradient(circle 600px at 15% 10%, rgba(14, 165, 233, 0.06), transparent 70%),
        radial-gradient(circle 500px at 85% 60%, rgba(255, 255, 255, 0.03), transparent 70%);
}

main {
    position: relative;
    z-index: 1;
}

.nav {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 16px clamp(20px, 4vw, 40px);
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    border-bottom: 1px solid transparent;
    transition: border-color 0.25s ease, background 0.25s ease;
}

.nav.is-scrolled {
    border-bottom-color: var(--border);
    background: rgba(0, 0, 0, 0.78);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    letter-spacing: 0.18em;
    font-size: 12px;
    color: var(--text);
}

.brand-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
}

.brand-icon svg {
    width: 100%;
    height: 100%;
}

.brand-text {
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    gap: 28px;
    font-size: 14px;
    color: var(--text-2);
}

.nav-links a {
    transition: color 0.2s ease;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    height: 44px;
    padding: 0 22px;
    border-radius: var(--radius);
    font-weight: 500;
    font-size: 15px;
    letter-spacing: 0.005em;
    transition: transform 0.15s ease, opacity 0.2s ease, background 0.25s ease, border-color 0.25s ease, color 0.25s ease;
    cursor: pointer;
    border: 1px solid transparent;
    white-space: nowrap;
}

.btn-sm {
    height: 36px;
    padding: 0 16px;
    font-size: 13px;
    border-radius: 14px;
}

.btn-lg {
    height: 52px;
    padding: 0 32px;
    font-size: 16px;
}

.btn-primary {
    color: #fff;
    background:
        radial-gradient(ellipse at 80% 12%, rgba(0, 140, 255, 1) 0%, rgba(0, 104, 189, 1) 50%, rgba(0, 85, 155, 1) 75%, rgba(0, 67, 122, 1) 100%);
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.15) inset,
        0 12px 28px -12px rgba(14, 165, 233, 0.55);
}

.btn-primary:hover {
    opacity: 0.92;
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-ghost {
    background: transparent;
    border-color: var(--border);
    color: var(--text-2);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    border-color: var(--border-hi);
}

.hero {
    position: relative;
    min-height: clamp(620px, 92vh, 880px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(48px, 8vh, 120px) clamp(20px, 4vw, 40px);
    text-align: center;
    overflow: hidden;
}

.hero-orb {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -52%);
    width: clamp(380px, 60vw, 720px);
    height: clamp(380px, 60vw, 720px);
    pointer-events: none;
    z-index: 0;
    opacity: 0.55;
    filter: blur(0.2px);
}

.hero-orb .orb-canvas {
    width: 100%;
    height: 100%;
}

.hero-orb .orb-canvas canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.hero-inner {
    position: relative;
    z-index: 1;
    max-width: 820px;
    margin: 0 auto;
}

.eyebrow {
    display: inline-block;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--text-2);
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.02);
    margin-bottom: 28px;
}

.eyebrow-accent {
    color: var(--accent-hi);
    border-color: rgba(56, 189, 248, 0.32);
    background: var(--accent-soft);
}

.hero-title {
    font-size: clamp(36px, 6.4vw, 72px);
    font-weight: 600;
    line-height: 1.06;
    letter-spacing: -0.02em;
    color: var(--text);
    margin-bottom: 24px;
}

.hl {
    color: var(--accent-hi);
    font-weight: 600;
}

.hero-sub {
    font-size: clamp(16px, 1.6vw, 19px);
    line-height: 1.6;
    color: var(--text-2);
    max-width: 620px;
    margin: 0 auto 40px;
}

.hero-cta {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.section {
    position: relative;
    max-width: 1180px;
    margin: 0 auto;
    padding: clamp(80px, 12vh, 160px) clamp(20px, 4vw, 40px);
}

.sec-head {
    margin-bottom: 56px;
    max-width: 820px;
}

.sec-num {
    display: inline-block;
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.22em;
    color: var(--text-3);
    margin-bottom: 20px;
}

.sec-num::before {
    content: "";
    display: inline-block;
    width: 24px;
    height: 1px;
    background: var(--text-3);
    vertical-align: middle;
    margin-right: 12px;
}

.sec-title {
    font-size: clamp(28px, 4.4vw, 48px);
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--text);
    margin-bottom: 20px;
}

.sec-lead {
    font-size: clamp(15px, 1.4vw, 17px);
    line-height: 1.65;
    color: var(--text-2);
    max-width: 640px;
}

.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition:
        opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
        transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.is-visible {
    opacity: 1;
    transform: none;
}

.worlds-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.world-card {
    position: relative;
    padding: 36px 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}

.world-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hi);
    background: var(--bg-card-hi);
}

.world-card-accent {
    background: linear-gradient(180deg, rgba(14, 165, 233, 0.06), var(--bg-card) 60%);
    border-color: rgba(14, 165, 233, 0.22);
}

.world-card-accent:hover {
    border-color: rgba(56, 189, 248, 0.4);
}

.card-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-3);
    margin-bottom: 18px;
}

.world-card-accent .card-tag {
    color: var(--accent-hi);
}

.card-title {
    font-size: clamp(22px, 2vw, 26px);
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--text);
    margin-bottom: 6px;
}

.card-role {
    font-size: 13px;
    color: var(--text-3);
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.card-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.card-list li {
    position: relative;
    padding-left: 22px;
    font-size: 15px;
    line-height: 1.55;
    color: var(--text-2);
}

.card-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 9px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
    opacity: 0.55;
}

.world-card-accent .card-list li::before {
    background: var(--accent-hi);
    opacity: 0.85;
    box-shadow: 0 0 6px var(--accent-glow);
}

.payment-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 56px;
    align-items: start;
}

.payment-lead {
    font-size: clamp(17px, 1.6vw, 21px);
    line-height: 1.55;
    color: var(--text);
    padding-left: 20px;
    border-left: 2px solid var(--accent);
    box-shadow: -8px 0 24px -16px var(--accent-glow);
}

.bullets {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 24px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
}

.bullets li {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    font-size: 15px;
    line-height: 1.5;
    color: var(--text);
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.bullets li:last-child {
    padding-bottom: 0;
    border-bottom: none;
}

.dot {
    flex: 0 0 6px;
    width: 6px;
    height: 6px;
    margin-top: 9px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
}

.hierarchy {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
}

.tier {
    width: 100%;
    max-width: 760px;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 28px;
    align-items: center;
    padding: 32px 36px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}

.tier:hover {
    transform: translateX(4px);
    border-color: var(--border-hi);
    background: var(--bg-card-hi);
}

.tier-top {
    background: linear-gradient(180deg, rgba(14, 165, 233, 0.08), var(--bg-card) 60%);
    border-color: rgba(14, 165, 233, 0.25);
}

.tier-top:hover {
    border-color: rgba(56, 189, 248, 0.45);
}

.tier-rank {
    font-size: clamp(48px, 5vw, 64px);
    font-weight: 600;
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 1px rgba(255, 255, 255, 0.18);
    letter-spacing: -0.04em;
}

.tier-top .tier-rank {
    -webkit-text-stroke-color: rgba(56, 189, 248, 0.55);
}

.tier-body {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.tier-badge {
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-3);
}

.tier-top .tier-badge {
    color: var(--accent-hi);
}

.tier-title {
    font-size: clamp(20px, 1.9vw, 24px);
    font-weight: 600;
    color: var(--text);
    letter-spacing: -0.01em;
}

.tier-text {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-2);
    margin-top: 4px;
}

.tier-link {
    width: 1px;
    height: 48px;
    background: linear-gradient(180deg, rgba(14, 165, 233, 0.6), rgba(255, 255, 255, 0.08));
    margin: 8px 0;
}

.hierarchy-note {
    margin-top: 32px;
    text-align: center;
    font-size: 13px;
    letter-spacing: 0.05em;
    color: var(--text-3);
}

.steps {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.step {
    position: relative;
    padding: 32px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
}

.step-num {
    display: inline-block;
    font-size: clamp(40px, 4.5vw, 56px);
    font-weight: 600;
    line-height: 1;
    color: transparent;
    -webkit-text-stroke: 1px rgba(56, 189, 248, 0.55);
    letter-spacing: -0.04em;
    margin-bottom: 20px;
}

.step-title {
    font-size: clamp(20px, 1.9vw, 22px);
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--text);
    margin-bottom: 10px;
}

.step-text {
    font-size: 14.5px;
    line-height: 1.6;
    color: var(--text-2);
}

.plans {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.plan {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 28px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
}

.plan:hover {
    transform: translateY(-4px);
    border-color: var(--border-hi);
    background: var(--bg-card-hi);
}

.plan-name {
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--text-3);
    margin-bottom: 14px;
}

.plan-price {
    font-size: clamp(22px, 2.2vw, 28px);
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text);
    margin-bottom: 18px;
}

.plan-desc {
    font-size: 14px;
    line-height: 1.55;
    color: var(--text-2);
    margin-bottom: 22px;
    flex: 1;
}

.plan-audience {
    font-size: 12px;
    letter-spacing: 0.06em;
    color: var(--text-3);
    padding-top: 18px;
    border-top: 1px solid var(--border);
}

.plan-featured {
    background: linear-gradient(180deg, rgba(14, 165, 233, 0.10), var(--bg-card) 60%);
    border-color: rgba(14, 165, 233, 0.32);
    box-shadow:
        var(--shadow-card),
        0 0 0 1px rgba(14, 165, 233, 0.15);
}

.plan-featured:hover {
    border-color: rgba(56, 189, 248, 0.55);
}

.plan-featured .plan-name {
    color: var(--accent-hi);
}

.plan-featured .plan-audience {
    color: var(--accent-hi);
}

.plan-badge {
    position: absolute;
    top: -10px;
    left: 24px;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: #001018;
    background: var(--accent-hi);
    padding: 5px 12px;
    border-radius: 999px;
    box-shadow: 0 8px 24px -8px var(--accent-glow);
}

.pricing-note {
    margin-top: 40px;
    max-width: 760px;
    font-size: 14px;
    line-height: 1.65;
    color: var(--text-3);
    padding-left: 16px;
    border-left: 1px solid var(--border-hi);
}

.why-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0 48px;
}

.why-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 22px 0;
    font-size: clamp(15px, 1.2vw, 17px);
    line-height: 1.55;
    color: var(--text);
    border-top: 1px solid var(--border);
}

.why-item b {
    color: var(--accent-hi);
    font-weight: 600;
}

.why-mark {
    flex: 0 0 8px;
    width: 8px;
    height: 8px;
    margin-top: 8px;
    border-radius: 2px;
    background: var(--accent);
    box-shadow: 0 0 10px var(--accent-glow);
    transform: rotate(45deg);
}

.faq {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 860px;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: border-color 0.25s ease, background 0.25s ease;
}

.faq-item[open] {
    border-color: var(--border-hi);
    background: var(--bg-card-hi);
}

.faq-item summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 22px 24px;
    font-size: clamp(15px, 1.3vw, 17px);
    font-weight: 500;
    color: var(--text);
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-icon {
    position: relative;
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.faq-icon::before,
.faq-icon::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 12px;
    height: 1.5px;
    background: var(--text-2);
    transform: translate(-50%, -50%);
    transition: transform 0.25s ease, background 0.25s ease;
}

.faq-icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
}

.faq-item[open] .faq-icon::before,
.faq-item[open] .faq-icon::after {
    background: var(--accent-hi);
}

.faq-item[open] .faq-icon::after {
    transform: translate(-50%, -50%) rotate(0deg);
}

.faq-item p {
    padding: 0 24px 22px;
    font-size: 15px;
    line-height: 1.65;
    color: var(--text-2);
    max-width: 720px;
}

.section-final {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.final-title {
    font-size: clamp(28px, 4.4vw, 48px);
    font-weight: 600;
    line-height: 1.1;
    letter-spacing: -0.02em;
    color: var(--text);
    max-width: 820px;
    margin: 24px 0 20px;
}

.final-lead {
    font-size: clamp(15px, 1.4vw, 18px);
    line-height: 1.6;
    color: var(--text-2);
    max-width: 600px;
    margin-bottom: 40px;
}

.contact-card {
    width: 100%;
    max-width: 540px;
    padding: 28px 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-card);
    margin-bottom: 32px;
    text-align: left;
}

.contact-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
}

.contact-row:last-child {
    border-bottom: none;
}

.contact-label {
    font-size: 12px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-3);
}

.contact-value {
    font-size: 15px;
    font-weight: 500;
    color: var(--text);
    transition: color 0.2s ease;
}

.contact-value:hover {
    color: var(--accent-hi);
}

.final-note {
    margin-top: 18px;
    font-size: 13px;
    color: var(--text-3);
    max-width: 520px;
}

.foot {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 14px;
    padding: 28px 24px;
    border-top: 1px solid var(--border);
    background: rgba(0, 0, 0, 0.4);
    font-size: 12px;
    letter-spacing: 0.06em;
    color: var(--text-3);
}

.foot-brand {
    color: var(--text-2);
    font-weight: 500;
}

.foot-sep {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--text-3);
    opacity: 0.5;
}

.foot-ver {
    font-variant-numeric: tabular-nums;
}

@media (max-width: 980px) {
    .nav-links {
        display: none;
    }

    .worlds-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .payment-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }

    .steps {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .plans {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .why-item {
        padding: 18px 0;
    }
}

@media (max-width: 640px) {
    .nav {
        padding: 12px 18px;
    }

    .brand-text {
        font-size: 11px;
    }

    .hero {
        padding: 48px 18px 72px;
        min-height: 80vh;
    }

    .hero-orb {
        width: 100vw;
        height: 100vw;
        max-width: 480px;
        max-height: 480px;
        opacity: 0.45;
    }

    .hero-cta {
        width: 100%;
    }

    .hero-cta .btn {
        flex: 1 1 auto;
        min-width: 0;
    }

    .section {
        padding: 64px 20px;
    }

    .sec-head {
        margin-bottom: 36px;
    }

    .world-card,
    .step,
    .plan,
    .tier {
        padding: 24px 22px;
    }

    .tier {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .tier:hover {
        transform: none;
    }

    .plans {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .plan-featured {
        order: -1;
    }

    .contact-card {
        padding: 22px 20px;
    }

    .contact-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .btn-lg {
        height: 48px;
        padding: 0 24px;
        font-size: 15px;
        width: 100%;
    }
}

body {
    background:
        radial-gradient(ellipse 70% 40% at 50% -8%, rgba(14, 165, 233, 0.06), transparent 62%),
        radial-gradient(ellipse 90% 80% at 50% 0%, #080808 0%, #030303 52%, #000 100%);
}

.bg-glow {
    background:
        radial-gradient(ellipse 70% 36% at 50% 0%, rgba(83, 203, 243, 0.08), transparent 65%),
        radial-gradient(circle 520px at 12% 18%, rgba(255, 255, 255, 0.025), transparent 70%),
        radial-gradient(circle 500px at 88% 76%, rgba(14, 165, 233, 0.045), transparent 72%);
}

.nav {
    min-height: 48px;
    padding: 8px clamp(18px, 4vw, 34px);
    background: rgba(0, 0, 0, 0.72);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.nav.is-scrolled {
    background: rgba(0, 0, 0, 0.88);
    border-bottom-color: rgba(255, 255, 255, 0.09);
}

.brand {
    gap: 10px;
    font-size: 11px;
    letter-spacing: 2.2px;
    color: rgba(240, 244, 252, 0.78);
}

.brand-icon {
    width: 24px;
    height: 24px;
    border-radius: 7px;
    box-shadow: 0 0 16px -8px rgba(83, 203, 243, 0.8);
}

.brand-icon svg rect {
    fill: #111;
}

.brand-icon svg path {
    fill: #f7f7f7;
}

.nav-links {
    gap: 22px;
    font-size: 13px;
    color: rgba(226, 232, 240, 0.62);
}

.nav-links a:hover {
    color: #f7f7f7;
}

.btn {
    border-radius: 20px;
    font-weight: 500;
}

.btn-primary {
    background:
        radial-gradient(ellipse at 80% 12.5%, rgba(83, 203, 243, 1) 0%, rgba(14, 165, 233, 1) 50%, rgba(2, 132, 199, 1) 75%, rgba(3, 105, 161, 1) 100%),
        linear-gradient(90deg, #323232, #323232);
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.16) inset,
        0 18px 36px -20px rgba(83, 203, 243, 0.75);
}

.btn-ghost {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.08);
    color: rgba(247, 247, 247, 0.72);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.035);
    border-color: rgba(255, 255, 255, 0.14);
}

.hero {
    min-height: calc(100vh - 48px);
    background:
        radial-gradient(ellipse 85% 55% at 50% 8%, rgba(14, 165, 233, 0.055), transparent 62%),
        radial-gradient(ellipse 70% 50% at 50% 100%, rgba(255, 255, 255, 0.012), transparent 68%);
}

.landing-app-header {
    position: absolute;
    top: clamp(16px, 2.2vh, 26px);
    left: clamp(20px, 3vw, 40px);
    right: clamp(20px, 3vw, 40px);
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    pointer-events: none;
}

.landing-hdr-app {
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: rgba(168, 168, 168, 0.92);
}

.landing-hdr-app {
    border-radius: 12px;
    overflow: hidden;
}

.landing-hdr-app svg {
    width: 48px;
    height: 48px;
    filter: drop-shadow(0 0 10px rgba(83, 203, 243, 0.18));
}

.landing-hdr-right {
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.landing-hdr-status {
    width: 24px;
    height: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.landing-hdr-status span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #10b981;
    box-shadow: 0 0 5px #10b981;
}

.hero-inner {
    padding: clamp(28px, 5vw, 48px) clamp(18px, 4vw, 36px) 0;
    border: none;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero-title {
    max-width: 820px;
}

.section {
    border-top: 1px solid rgba(255, 255, 255, 0.035);
}

.sec-head {
    padding: 16px 20px;
    border-radius: 20px;
    background: transparent;
}

.eyebrow {
    color: rgba(247, 247, 247, 0.62);
    border-color: rgba(255, 255, 255, 0.08);
    background: transparent;
}

.eyebrow-accent {
    color: #7dd3fc;
    border-color: rgba(83, 203, 243, 0.18);
    background: rgba(14, 165, 233, 0.06);
}

.hl {
    color: #53cbf3;
}

.world-card,
.bullets,
.tier,
.step,
.plan,
.faq-item,
.contact-card {
    background: rgba(8, 8, 8, 0.86);
    border-color: rgba(255, 255, 255, 0.07);
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.025) inset,
        0 22px 64px -42px rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.world-card:hover,
.tier:hover,
.plan:hover,
.faq-item[open] {
    background: rgba(14, 14, 14, 0.92);
    border-color: rgba(255, 255, 255, 0.11);
}

.world-card-accent,
.tier-top,
.plan-featured {
    background: linear-gradient(160deg, rgba(14, 165, 233, 0.055) 0%, rgba(8, 8, 8, 0.9) 72%);
    border-color: rgba(83, 203, 243, 0.16);
    box-shadow:
        0 1px 0 rgba(255, 255, 255, 0.035) inset,
        0 24px 72px -44px rgba(14, 165, 233, 0.35);
}

.world-card-accent:hover,
.tier-top:hover,
.plan-featured:hover {
    border-color: rgba(83, 203, 243, 0.25);
}

.card-role,
.plan-audience,
.pricing-note,
.hierarchy-note,
.final-note,
.foot {
    color: rgba(247, 247, 247, 0.42);
}

.card-list li,
.step-text,
.tier-text,
.plan-desc,
.faq-item p,
.final-lead,
.hero-sub,
.sec-lead {
    color: rgba(247, 247, 247, 0.66);
}

.payment-lead {
    border-left-color: rgba(83, 203, 243, 0.85);
    box-shadow: -10px 0 26px -18px rgba(83, 203, 243, 0.75);
}

.dot,
.why-mark {
    background: #53cbf3;
    box-shadow: 0 0 10px rgba(83, 203, 243, 0.7);
}

.plan-badge {
    color: #001018;
    background: #53cbf3;
}

.faq-item summary {
    color: #f7f7f7;
}

.contact-value:hover {
    color: #53cbf3;
}

.foot {
    background: rgba(6, 10, 18, 0.72);
    border-top-color: rgba(148, 163, 184, 0.08);
}

.section-demo {
    padding-top: clamp(48px, 6vh, 80px);
    padding-bottom: clamp(60px, 8vh, 120px);
}

.sec-head-center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.sec-head-center .sec-lead {
    margin-left: auto;
    margin-right: auto;
}

.demo-frame {
    --demo-accent: #fb923c;
    --demo-accent-hi: #fdba74;
    --demo-accent-soft: rgba(251, 146, 60, 0.12);
    --demo-accent-line: rgba(251, 146, 60, 0.22);
    margin: 0 auto;
    max-width: 1040px;
    background: #000;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 14px;
    overflow: hidden;
    box-shadow:
        0 40px 100px -40px rgba(0, 0, 0, 0.9),
        0 0 0 1px rgba(251, 146, 60, 0.05),
        0 0 80px -30px rgba(251, 146, 60, 0.18);
}

.demo-titlebar {
    display: flex;
    align-items: center;
    height: 32px;
    background: rgba(0, 0, 0, 0.42);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    user-select: none;
}

.demo-titlebar-brand {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 16px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2.2px;
    text-transform: uppercase;
    color: rgba(240, 244, 252, 0.72);
}

.demo-titlebar-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--demo-accent);
    box-shadow: 0 0 8px rgba(251, 146, 60, 0.8);
}

.demo-titlebar-text {
    line-height: 1;
}

.demo-stage {
    display: grid;
    grid-template-rows: 1fr auto;
    min-height: 540px;
    background:
        radial-gradient(ellipse 63% 420% at 50% -19%, rgba(255, 149, 69, 0.14) 0%, rgba(180, 90, 40, 0.06) 25%, rgba(90, 45, 20, 0.03) 50%, transparent 100%),
        radial-gradient(ellipse 100% 100% at 50% 0%, #1a120c 0%, #0f0a08 50%, #070707 75%, #000 100%);
}

.demo-feed {
    padding: 28px 28px 8px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    overflow: hidden;
}

.demo-msg {
    max-width: 78%;
    opacity: 0;
    transform: translateY(8px);
    animation: demoIn 0.42s forwards cubic-bezier(0.2, 0.8, 0.2, 1);
}

.demo-msg.user {
    align-self: flex-end;
    padding: 14px 20px;
    border-radius: 20px;
    background: linear-gradient(160deg, #1e140c 0%, #1a1a1a 100%);
    box-shadow: inset 0 0 0 1px var(--demo-accent-line);
    color: #f7f7f7;
    font-size: 15px;
    line-height: 1.5;
}

.demo-msg.bot {
    align-self: flex-start;
    max-width: 92%;
    padding: 4px 4px 0;
    color: #f7f7f7;
    font-size: 15px;
    line-height: 1.6;
    background: transparent;
}

@keyframes demoIn {
    to { opacity: 1; transform: none; }
}

.demo-typing {
    display: inline-flex;
    gap: 6px;
    align-items: center;
    padding: 6px 4px;
}

.demo-typing span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(251, 146, 60, 0.65);
    animation: demoTyp 1.2s infinite ease-in-out;
}

.demo-typing span:nth-child(2) { animation-delay: 0.15s; }
.demo-typing span:nth-child(3) { animation-delay: 0.3s; }

@keyframes demoTyp {
    0%, 80%, 100% { transform: translateY(0); opacity: 0.35; }
    40% { transform: translateY(-3px); opacity: 1; }
}

.demo-card {
    margin-top: 14px;
    background: rgba(251, 146, 60, 0.05);
    border: 1px solid var(--demo-accent-line);
    border-radius: 16px;
    padding: 18px 18px 16px;
    opacity: 0;
    transform: translateY(10px);
    animation: demoIn 0.5s 0.05s forwards cubic-bezier(0.2, 0.8, 0.2, 1);
}

.demo-card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.45);
}

.demo-card-head b {
    color: var(--demo-accent-hi);
    font-weight: 600;
}

.demo-kpis {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.demo-kpi {
    padding: 14px 14px 12px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.015);
}

.demo-kpi-label {
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.42);
    margin-bottom: 8px;
}

.demo-kpi-value {
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.02em;
    color: #f7f7f7;
    font-variant-numeric: tabular-nums;
    line-height: 1.1;
}

.demo-kpi-delta {
    margin-top: 6px;
    font-size: 11px;
    letter-spacing: 0.04em;
    color: var(--demo-accent-hi);
}

.demo-kpi-delta.is-down { color: #f87171; }

.demo-bars {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 9px;
}

.demo-bar-row {
    display: grid;
    grid-template-columns: 130px 1fr 70px;
    gap: 12px;
    align-items: center;
    font-size: 12.5px;
    color: rgba(255, 255, 255, 0.72);
}

.demo-bar-track {
    height: 8px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 4px;
    overflow: hidden;
}

.demo-bar-fill {
    display: block;
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, rgba(251, 146, 60, 0.25), rgba(251, 146, 60, 0.95));
    border-radius: 4px;
    box-shadow: 0 0 16px -2px rgba(251, 146, 60, 0.55);
    transition: width 1.1s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.demo-bar-value {
    text-align: right;
    font-variant-numeric: tabular-nums;
    color: #f7f7f7;
    font-weight: 500;
    font-size: 12.5px;
}

.demo-summary {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 13px;
    line-height: 1.55;
    color: rgba(255, 255, 255, 0.72);
}

.demo-summary b {
    color: var(--demo-accent-hi);
    font-weight: 600;
}

.demo-input-row {
    display: flex;
    justify-content: center;
    padding: 16px 22px 22px;
}

.demo-input-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    max-width: 706px;
    padding: 14px 20px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 20px;
    transition: border-color 0.2s ease;
    background: transparent;
}

.demo-frame:hover .demo-input-bar,
.demo-input-bar:focus-within {
    border-color: rgba(251, 146, 60, 0.5);
}

.demo-input-icon,
.demo-input-mic {
    flex: 0 0 auto;
    width: 22px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.55);
}

.demo-input-text {
    flex: 1;
    min-width: 0;
    display: inline-flex;
    align-items: center;
    gap: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: #f7f7f7;
    font-size: 16px;
    line-height: 1;
    font-weight: 400;
}

.demo-input-text [data-typing] {
    color: #f7f7f7;
}

.demo-input-text [data-typing]:empty::before {
    content: 'Введите запрос';
    color: rgba(255, 255, 255, 0.35);
}

.demo-caret {
    display: inline-block;
    width: 1px;
    height: 16px;
    background: var(--demo-accent);
    margin-left: 2px;
    animation: demoBlink 1s steps(2) infinite;
}

@keyframes demoBlink {
    50% { opacity: 0; }
}

.demo-note {
    margin-top: 18px;
    text-align: center;
    font-size: 12px;
    letter-spacing: 0.04em;
    color: var(--text-3);
}

@media (max-width: 820px) {
    .demo-frame {
        border-radius: 12px;
    }
    .demo-stage {
        min-height: 460px;
    }
    .demo-feed {
        padding: 18px 14px 6px;
        gap: 12px;
    }
    .demo-card {
        padding: 14px;
        border-radius: 12px;
    }
    .demo-kpis {
        grid-template-columns: repeat(2, 1fr);
    }
    .demo-bar-row {
        grid-template-columns: 96px 1fr 62px;
        font-size: 12px;
    }
    .demo-msg.user {
        font-size: 14px;
        padding: 12px 16px;
    }
    .demo-msg.bot {
        font-size: 14px;
    }
    .demo-input-row {
        padding: 12px 14px 16px;
    }
    .demo-input-bar {
        padding: 12px 16px;
    }
    .demo-input-text {
        font-size: 14px;
    }
    .demo-titlebar-brand {
        font-size: 10px;
        letter-spacing: 1.6px;
    }
}

@media (max-width: 760px) {
    html,
    body {
        width: 100%;
        max-width: 100%;
        overflow-x: clip;
    }

    .bg-glow {
        opacity: 0.8;
        background:
            radial-gradient(ellipse 92% 34% at 50% 0%, rgba(83, 203, 243, 0.08), transparent 68%),
            radial-gradient(circle 260px at 50% 18%, rgba(14, 165, 233, 0.05), transparent 72%);
    }

    .nav {
        min-height: 54px;
        padding: 10px 14px;
        gap: 10px;
    }

    .brand {
        min-width: 0;
        gap: 9px;
        letter-spacing: 1.5px;
    }

    .brand-text {
        max-width: 128px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    .nav > .btn {
        height: 36px;
        padding: 0 14px;
        flex: 0 0 auto;
        font-size: 13px;
    }

    .hero {
        min-height: auto;
        padding: 72px 16px 68px;
    }

    .landing-app-header {
        top: 12px;
        left: 14px;
        right: 14px;
    }

    .landing-hdr-app,
    .landing-hdr-app svg {
        width: 34px;
        height: 34px;
    }

    .landing-hdr-status {
        width: 18px;
        height: 18px;
    }

    .hero-orb {
        width: min(118vw, 430px);
        height: min(118vw, 430px);
        opacity: 0.34;
        transform: translate(-50%, -58%);
    }

    .hero-inner {
        width: 100%;
        padding: 18px 0 0;
    }

    .hero-title {
        font-size: clamp(40px, 13.5vw, 62px);
        line-height: 0.94;
    }

    .hero-sub,
    .sec-lead {
        font-size: 15px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .hero-cta .btn {
        width: 100%;
    }

    .section {
        padding: 58px 16px;
    }

    .sec-head {
        padding: 0;
        margin-bottom: 32px;
    }

    .sec-title {
        font-size: clamp(30px, 9vw, 44px);
        line-height: 1.02;
    }

    .world-card,
    .bullets,
    .tier,
    .step,
    .plan,
    .faq-item,
    .contact-card {
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }

    .section-demo {
        padding: 54px 12px 66px;
        overflow: hidden;
    }

    .section-demo .sec-head {
        padding: 0 4px;
    }

    .demo-frame {
        width: 100%;
        max-width: calc(100vw - 24px);
        border-radius: 16px;
        overflow: hidden;
        box-shadow:
            0 24px 80px -46px rgba(0, 0, 0, 0.95),
            0 0 48px -28px rgba(251, 146, 60, 0.32);
    }

    .demo-titlebar {
        height: 30px;
    }

    .demo-titlebar-brand {
        padding: 0 12px;
        min-width: 0;
    }

    .demo-stage {
        min-height: 0;
        grid-template-rows: auto auto;
    }

    .demo-feed {
        min-height: 410px;
        padding: 14px 10px 4px;
        gap: 10px;
        overflow: visible;
    }

    .demo-msg {
        max-width: 100%;
    }

    .demo-msg.user {
        max-width: 92%;
        padding: 11px 14px;
        border-radius: 16px;
        font-size: 13px;
    }

    .demo-msg.bot {
        width: 100%;
        max-width: 100%;
        padding: 0;
        font-size: 13px;
        line-height: 1.5;
    }

    .demo-card {
        width: 100%;
        margin-top: 10px;
        padding: 12px;
        border-radius: 14px;
    }

    .demo-card-head {
        align-items: flex-start;
        flex-direction: column;
        gap: 4px;
        margin-bottom: 12px;
        letter-spacing: 0.14em;
    }

    .demo-kpis {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 8px;
    }

    .demo-kpi {
        min-width: 0;
        padding: 11px 10px 10px;
    }

    .demo-kpi-label {
        font-size: 9px;
        letter-spacing: 0.12em;
    }

    .demo-kpi-value {
        font-size: 19px;
    }

    .demo-kpi-delta {
        font-size: 10px;
    }

    .demo-bars {
        gap: 11px;
    }

    .demo-bar-row {
        grid-template-columns: minmax(0, 1fr) auto;
        gap: 6px 10px;
        font-size: 11.5px;
    }

    .demo-bar-track {
        grid-column: 1 / -1;
        grid-row: 2;
    }

    .demo-bar-value {
        grid-column: 2;
        grid-row: 1;
        font-size: 11.5px;
    }

    .demo-summary {
        margin-top: 12px;
        padding-top: 12px;
        font-size: 12px;
    }

    .demo-input-row {
        padding: 10px 10px 12px;
    }

    .demo-input-bar {
        min-width: 0;
        padding: 11px 12px;
        gap: 8px;
        border-radius: 16px;
        background: rgba(0, 0, 0, 0.18);
    }

    .demo-input-icon,
    .demo-input-mic {
        width: 18px;
        height: 18px;
    }

    .demo-input-text {
        font-size: 13px;
    }
}

@media (max-width: 430px) {
    .nav > .btn {
        padding: 0 10px;
    }

    .brand-text {
        max-width: 112px;
    }

    .hero-title {
        font-size: clamp(36px, 13vw, 50px);
    }

    .demo-feed {
        min-height: 440px;
    }

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

    .demo-kpi:nth-child(n+4) {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}