/* ESCAPE VPN — tech-noir / glass (monochrome + sparse accent) */

:root {
    --void: #000000;
    --ink: #0a0a0b;
    --smoke: #8a8f98;
    --mist: #c9cdd4;
    --snow: #f4f6f8;
    --glass: rgba(255, 255, 255, 0.04);
    --glass-strong: rgba(255, 255, 255, 0.07);
    --line: rgba(255, 255, 255, 0.1);
    --line-bright: rgba(255, 255, 255, 0.22);
    --accent: #00e8c5;
    --accent-dim: rgba(0, 232, 197, 0.15);
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --font-sans: "Outfit", system-ui, sans-serif;
    --font-mono: "IBM Plex Mono", ui-monospace, monospace;
    --max: 1120px;
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
    scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}

body {
    margin: 0;
    font-family: var(--font-sans);
    font-weight: 400;
    font-size: 17px;
    line-height: 1.55;
    color: var(--mist);
    background: var(--void);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

a:hover {
    color: var(--snow);
}

/* —— Background layers —— */
.esc-bg {
    position: fixed;
    inset: 0;
    z-index: -3;
    background:
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(255, 255, 255, 0.06), transparent 55%),
        radial-gradient(ellipse 60% 40% at 100% 60%, rgba(0, 232, 197, 0.04), transparent 50%),
        var(--void);
}

.esc-grid {
    position: fixed;
    inset: 0;
    z-index: -2;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 75%);
    pointer-events: none;
}

.esc-scan {
    position: fixed;
    inset: -50% 0 0 0;
    z-index: -1;
    background: linear-gradient(
        105deg,
        transparent 40%,
        rgba(255, 255, 255, 0.03) 50%,
        transparent 60%
    );
    background-size: 200% 100%;
    animation: esc-scan 14s linear infinite;
    pointer-events: none;
    opacity: 0.5;
}

@media (prefers-reduced-motion: reduce) {
    .esc-scan {
        animation: none;
        opacity: 0.15;
    }
}

@keyframes esc-scan {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

.container {
    width: min(100% - 40px, var(--max));
    margin-inline: auto;
}

/* —— Glass primitives —— */
.glass {
    background: var(--glass);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid var(--line);
    border-radius: var(--radius-md);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.06),
        0 24px 80px rgba(0, 0, 0, 0.55);
}

.glass-tight {
    background: var(--glass-strong);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
}

/* —— Header —— */
.esc-header {
    position: sticky;
    top: 0;
    z-index: 50;
    padding: 18px 0;
    transition: padding 0.35s var(--ease-out), background 0.35s var(--ease-out), border-color 0.35s var(--ease-out);
}

.esc-header.is-scrolled {
    padding: 10px 0;
    background: rgba(0, 0, 0, 0.72);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
}

.esc-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.esc-brand {
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
}

.esc-brand img {
    width: 48px;
    height: 48px;
    object-fit: contain;
    filter: drop-shadow(0 0 20px rgba(255, 255, 255, 0.12));
}

.esc-brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.esc-brand-text .esc-mark {
    font-size: 11px;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--smoke);
    font-family: var(--font-mono);
}

.esc-brand-text .esc-name {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--snow);
    letter-spacing: 0.04em;
}

.esc-nav {
    display: none;
    align-items: center;
    gap: 18px;
    font-size: 13px;
    color: var(--smoke);
}

@media (min-width: 900px) {
    .esc-nav {
        display: flex;
    }
}

.esc-nav a {
    position: relative;
    padding: 4px 0;
}

.esc-nav a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 1px;
    background: var(--snow);
    transition: width 0.3s var(--ease-out);
}

.esc-nav a:hover::after {
    width: 100%;
}

.esc-header-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 8px;
    max-width: min(100%, 440px);
}

.esc-header-actions .btn {
    font-size: 12px;
    padding: 10px 12px;
    line-height: 1.25;
}

@media (min-width: 1040px) {
    .esc-header-actions .btn {
        font-size: 13px;
        padding: 11px 14px;
    }
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-family: var(--font-sans);
    font-size: 14px;
    font-weight: 500;
    padding: 11px 18px;
    border-radius: 999px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: transform 0.2s var(--ease-out), border-color 0.2s, background 0.2s, color 0.2s;
    white-space: nowrap;
}

.btn:active {
    transform: scale(0.98);
}

.btn-ghost {
    background: transparent;
    border-color: var(--line);
    color: var(--mist);
}

.btn-ghost:hover {
    border-color: var(--line-bright);
    color: var(--snow);
    background: rgba(255, 255, 255, 0.03);
}

.btn-electric {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(0, 232, 197, 0.2), rgba(255, 255, 255, 0.06));
    border-color: rgba(0, 232, 197, 0.45);
    color: var(--snow);
}

.btn-electric:hover {
    border-color: rgba(0, 232, 197, 0.85);
    box-shadow: 0 0 32px var(--accent-dim);
}

.cta-electric {
    position: relative;
    overflow: hidden;
}

@keyframes esc-ripple {
    to {
        transform: scale(2.6);
        opacity: 0;
    }
}

.cta-ripple {
    background: rgba(255, 255, 255, 0.35);
    animation: esc-ripple 0.6s ease-out forwards;
}

/* —— Hero —— */
.esc-hero {
    padding: 48px 0 72px;
}

.esc-hero-grid {
    display: grid;
    gap: 48px;
    align-items: center;
}

@media (min-width: 960px) {
    .esc-hero-grid {
        grid-template-columns: 1fr 1.05fr;
        gap: 64px;
    }
}

.esc-kicker {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--smoke);
    margin: 0 0 20px;
}

.esc-kicker-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 12px var(--accent);
    animation: esc-pulse 2.4s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
    .esc-kicker-dot {
        animation: none;
    }
}

@keyframes esc-pulse {
    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.55;
        transform: scale(0.92);
    }
}

.esc-hero-title {
    margin: 0 0 20px;
    font-size: clamp(2.1rem, 4.5vw, 3.35rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.08;
    color: var(--snow);
}

.esc-hero-title span {
    display: block;
    margin-top: 0.12em;
    font-weight: 500;
    font-size: 0.58em;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--smoke);
}

.esc-hero-lead {
    margin: 0 0 32px;
    max-width: 34rem;
    color: var(--smoke);
    font-size: 1.05rem;
}

.esc-hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 28px;
}

.esc-meta {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 14px 22px;
    font-size: 13px;
    color: var(--smoke);
}

.esc-meta li {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.esc-meta svg {
    flex-shrink: 0;
    opacity: 0.7;
}

/* Hero visual: glass stage + logo */
.esc-hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 280px;
}

@media (min-width: 960px) {
    .esc-hero-visual {
        min-height: 380px;
    }
}

/* На первом экране — клавиша на чистом чёрном фоне (без стеклянной подложки) */
.esc-key-plain {
    position: relative;
    display: grid;
    place-items: center;
    width: min(100%, 520px);
}

/* Клавиша: изображение без pointer-events, сверху — ссылка на весь размер клавиши */
.esc-key-stack {
    position: relative;
    z-index: 1;
    width: 72%;
    max-width: 300px;
}

.esc-key-photo {
    position: relative;
    display: block;
    width: 100%;
    height: auto;
    pointer-events: none;
    transform-origin: 50% 62%;
    filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.6));
    transition:
        transform 0.45s var(--ease-out),
        filter 0.45s var(--ease-out),
        opacity 0.2s ease;
    will-change: transform;
}

.esc-key-hit {
    position: absolute;
    inset: 0;
    z-index: 2;
    margin: 0;
    padding: 0;
    border: 0;
    cursor: pointer;
    background: transparent;
    -webkit-tap-highlight-color: transparent;
    outline: none;
}

.esc-key-stack:has(.esc-key-hit:focus-visible) {
    outline: 2px solid rgba(0, 232, 197, 0.75);
    outline-offset: 6px;
    border-radius: 12px;
}

.esc-key-stack:has(.esc-key-hit:hover) .esc-key-photo {
    transform: translateY(-8px) scale(1.04) rotate(-1deg);
    filter:
        drop-shadow(0 28px 56px rgba(0, 0, 0, 0.55))
        drop-shadow(0 0 28px rgba(0, 232, 197, 0.22));
}

.esc-key-stack:has(.esc-key-hit:active) .esc-key-photo {
    transform: translateY(10px) scale(0.9) rotate(0deg);
    filter:
        drop-shadow(0 12px 28px rgba(0, 0, 0, 0.75))
        drop-shadow(0 0 16px rgba(0, 232, 197, 0.35));
    transition:
        transform 0.09s ease-out,
        filter 0.09s ease-out;
}

@keyframes esc-key-rebound {
    0% {
        transform: translateY(10px) scale(0.9) rotate(0deg);
        filter:
            drop-shadow(0 14px 32px rgba(0, 0, 0, 0.72))
            drop-shadow(0 0 18px rgba(0, 232, 197, 0.3));
    }
    42% {
        transform: translateY(-12px) scale(1.05) rotate(-1.2deg);
        filter:
            drop-shadow(0 32px 60px rgba(0, 0, 0, 0.5))
            drop-shadow(0 0 32px rgba(0, 232, 197, 0.28));
    }
    72% {
        transform: translateY(3px) scale(0.98) rotate(0.3deg);
    }
    100% {
        transform: translateY(0) scale(1) rotate(0deg);
        filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.6));
    }
}

.esc-key-stack:has(.esc-key-hit.esc-key-rebound) .esc-key-photo {
    animation: esc-key-rebound 0.4s var(--ease-out) forwards;
}

@media (prefers-reduced-motion: reduce) {
    .esc-key-stack:has(.esc-key-hit:hover) .esc-key-photo,
    .esc-key-stack:has(.esc-key-hit:active) .esc-key-photo {
        transform: none;
        filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.6));
        transition: opacity 0.2s ease;
    }

    .esc-key-stack:has(.esc-key-hit:hover) .esc-key-photo {
        opacity: 0.95;
    }

    .esc-key-stack:has(.esc-key-hit:active) .esc-key-photo {
        opacity: 0.88;
    }
}

/* —— Sections —— */
.esc-section {
    padding: 0 0 96px;
}

.esc-block-head {
    margin-bottom: 28px;
    max-width: 640px;
}

.esc-block-num {
    display: block;
    font-family: var(--font-mono);
    font-size: clamp(2.5rem, 6vw, 3.75rem);
    font-weight: 500;
    line-height: 1;
    color: rgba(255, 255, 255, 0.07);
    margin-bottom: 6px;
    letter-spacing: -0.03em;
    user-select: none;
}

.esc-block-head h2 {
    margin: 0 0 10px;
    font-size: clamp(1.45rem, 3vw, 2rem);
    font-weight: 600;
    color: var(--snow);
    letter-spacing: -0.02em;
}

.esc-block-lead {
    margin: 0;
    color: var(--smoke);
    font-size: 1rem;
    line-height: 1.6;
}

/* Таблица-учёт */
.esc-ledger {
    padding: 0;
    overflow: hidden;
}

.esc-ledger-row {
    display: grid;
    grid-template-columns: minmax(110px, 150px) 1fr;
    gap: 16px 20px;
    padding: 18px 22px;
    border-bottom: 1px solid var(--line);
    align-items: baseline;
}

@media (max-width: 560px) {
    .esc-ledger-row {
        grid-template-columns: 1fr;
        gap: 6px;
    }
}

.esc-ledger-row:last-child {
    border-bottom: 0;
}

.esc-ledger-k {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--smoke);
}

.esc-ledger-v {
    color: var(--mist);
    font-size: 15px;
    line-height: 1.55;
}

/* Две колонки «кто что видит» */
.esc-perimeter {
    display: grid;
    gap: 18px;
}

@media (min-width: 780px) {
    .esc-perimeter {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
}

.esc-perimeter-col {
    padding: 24px 22px;
    border-radius: var(--radius-md);
    border: 1px solid var(--line);
    background: var(--glass);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

.esc-perimeter-col h3 {
    margin: 0 0 10px;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--snow);
}

.esc-perimeter-note {
    margin: 0 0 14px;
    font-size: 13px;
    color: var(--smoke);
    line-height: 1.5;
}

.esc-perimeter-list {
    margin: 0;
    padding: 0 0 0 1.1em;
    color: var(--mist);
    font-size: 14px;
    line-height: 1.65;
}

.esc-perimeter-out {
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02);
}

.esc-perimeter-in {
    border-color: rgba(0, 232, 197, 0.22);
    box-shadow:
        inset 0 1px 0 rgba(0, 232, 197, 0.06),
        0 0 40px rgba(0, 232, 197, 0.06);
}

/* Горизонтальная «сцепка» */
.esc-sequence {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 14px;
}

@media (min-width: 880px) {
    .esc-sequence {
        grid-template-columns: repeat(3, 1fr);
        gap: 0;
        border: 1px solid var(--line);
        border-radius: var(--radius-md);
        overflow: hidden;
        background: rgba(255, 255, 255, 0.02);
    }

    .esc-sequence > li {
        display: grid;
        grid-template-columns: auto 1fr;
        gap: 16px;
        padding: 26px 22px;
        border-right: 1px solid var(--line);
        align-items: start;
    }

    .esc-sequence > li:last-child {
        border-right: 0;
    }
}

@media (max-width: 879px) {
    .esc-sequence > li {
        display: grid;
        grid-template-columns: auto 1fr;
        gap: 14px;
        padding: 20px;
        border: 1px solid var(--line);
        border-radius: var(--radius-md);
        background: rgba(255, 255, 255, 0.02);
    }
}

.esc-seq-idx {
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 500;
    color: var(--accent);
    width: 28px;
    height: 28px;
    display: grid;
    place-items: center;
    border: 1px solid rgba(0, 232, 197, 0.35);
    border-radius: 8px;
    background: rgba(0, 232, 197, 0.06);
}

.esc-seq-body strong {
    display: block;
    margin-bottom: 6px;
    font-size: 1rem;
    color: var(--snow);
}

.esc-seq-body p {
    margin: 0;
    font-size: 14px;
    color: var(--smoke);
    line-height: 1.55;
}

/* Полоса «горячих» платформ */
.esc-kbd-caption {
    margin: 0 0 14px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--smoke);
}

.esc-kbd-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: flex-start;
    margin: 0 0 18px;
    padding: 0;
    list-style: none;
}

.esc-kbd-strip kbd {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 500;
    padding: 10px 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.45);
    color: var(--mist);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.esc-stack-note {
    margin: 0;
    font-size: 14px;
    color: var(--smoke);
    max-width: 42rem;
    line-height: 1.55;
}

/* Узкий CTA */
.esc-probe {
    max-width: 520px;
    margin: 0 auto;
    padding: 36px 28px 40px;
    text-align: center;
}

.esc-probe-tag {
    margin: 0 0 12px;
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--accent);
}

.esc-probe-title {
    margin: 0 0 12px;
    font-size: clamp(1.35rem, 2.8vw, 1.75rem);
    font-weight: 600;
    color: var(--snow);
}

.esc-probe-lead {
    margin: 0 0 22px;
    color: var(--smoke);
    font-size: 15px;
    line-height: 1.6;
}

.esc-probe-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

/* FAQ: определения */
.esc-brief {
    margin: 0;
}

.esc-brief-pair {
    padding: 22px 0;
    border-bottom: 1px solid var(--line);
}

.esc-brief-pair:last-child {
    border-bottom: 0;
}

.esc-brief dt {
    margin: 0 0 8px;
    font-size: 16px;
    font-weight: 600;
    color: var(--snow);
}

.esc-brief dd {
    margin: 0;
    font-size: 15px;
    color: var(--smoke);
    line-height: 1.6;
}

/* —— Footer —— */
.esc-footer {
    padding: 56px 0 40px;
    border-top: 1px solid var(--line);
    background: var(--ink);
}

.esc-footer-top {
    display: grid;
    gap: 36px;
}

@media (min-width: 800px) {
    .esc-footer-top {
        grid-template-columns: 1.2fr 1fr 1fr;
        align-items: start;
    }
}

.esc-footer-brand p {
    margin: 14px 0 0;
    color: var(--smoke);
    font-size: 14px;
    max-width: 280px;
}

.esc-footer-col h4 {
    margin: 0 0 14px;
    font-size: 11px;
    font-family: var(--font-mono);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--smoke);
    font-weight: 500;
}

.esc-footer-col a {
    display: block;
    margin-bottom: 10px;
    font-size: 14px;
    color: var(--mist);
}

.esc-footer-col a:hover {
    color: var(--snow);
}

.esc-footer-bottom {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    gap: 10px;
    font-size: 12px;
    color: var(--smoke);
}

@media (min-width: 640px) {
    .esc-footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

/* —— Legal —— */
.legal {
    padding: 48px 0 80px;
}

.legal-card {
    padding: 28px;
    max-width: 720px;
}

.legal-card h2 {
    margin: 0 0 12px;
    color: var(--snow);
    font-size: 1.25rem;
}

.legal-card p {
    margin: 0;
    color: var(--smoke);
}

/* —— Reveal —— */
.esc-reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.65s var(--ease-out), transform 0.65s var(--ease-out);
}

.esc-reveal.is-in {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .esc-reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
}