/* ============ NovaVisuals — premium dark-violet theme ============ */

:root {
    --bg: #07060d;
    --bg-2: #0c0a17;
    --bg-3: #111025;
    --surface: #141228;
    --surface-2: #1a1734;
    --border: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.14);
    --fg: #f5f3ff;
    --fg-dim: #b9b4d9;
    --muted: #7b7798;
    --accent: #8b6dff;
    --accent-2: #c4a8ff;
    --accent-hot: #a583ff;
    --accent-glow: rgba(139, 109, 255, 0.55);
    --danger: #ff6b6b;
    --ok: #5eead4;
    --ease-apple: cubic-bezier(0.22, 1, 0.36, 1);
    --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 22px;
    --shadow-lg: 0 30px 80px -20px rgba(90, 50, 220, 0.35);
    --max: 1180px;
}

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

html, body {
    background: var(--bg);
    color: var(--fg);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", "Segoe UI", Roboto, sans-serif;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

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

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

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

.container { max-width: var(--max); margin: 0 auto; padding: 0 24px; position: relative; z-index: 2; }
.container.narrow { max-width: 760px; }

/* ---------- background effects ---------- */
.bg-grid {
    position: fixed; inset: 0; z-index: 0; pointer-events: none;
    background-image:
        linear-gradient(rgba(139, 109, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(139, 109, 255, 0.05) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse at 50% 0%, rgba(0,0,0,0.9) 0%, rgba(0,0,0,0.3) 50%, transparent 80%);
}
.bg-blobs { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.blob {
    position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.45;
    animation: floatBlob 22s var(--ease-soft) infinite alternate;
}
.blob.b1 { width: 540px; height: 540px; background: #5a2bff; top: -120px; left: -140px; }
.blob.b2 { width: 440px; height: 440px; background: #a86dff; top: 40%; right: -120px; animation-delay: -8s; }
.blob.b3 { width: 380px; height: 380px; background: #2a1464; bottom: -140px; left: 40%; animation-delay: -14s; }
@keyframes floatBlob {
    0%   { transform: translate(0, 0) scale(1); }
    50%  { transform: translate(60px, 40px) scale(1.12); }
    100% { transform: translate(-40px, 80px) scale(0.96); }
}

/* cursor aura follows mouse */
.cursor-aura {
    position: fixed; width: 520px; height: 520px; border-radius: 50%;
    background: radial-gradient(circle, rgba(139,109,255,0.35) 0%, rgba(139,109,255,0.12) 30%, transparent 65%);
    pointer-events: none; z-index: 1;
    transform: translate(-50%, -50%) scale(1);
    transition: transform 0.4s var(--ease-apple), opacity 0.4s ease;
    mix-blend-mode: screen;
    opacity: 0;
}
body.cursor-ready .cursor-aura { opacity: 1; }
@media (pointer: coarse) { .cursor-aura { display: none; } }

/* ---------- header ---------- */
.site-header {
    position: sticky; top: 0; z-index: 20;
    backdrop-filter: blur(16px) saturate(160%);
    -webkit-backdrop-filter: blur(16px) saturate(160%);
    background: rgba(7, 6, 13, 0.6);
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s var(--ease-soft), background 0.3s var(--ease-soft);
}
.site-header.scrolled { border-color: var(--border); background: rgba(7, 6, 13, 0.85); }
.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 24px; gap: 24px;
}
.logo { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -0.02em; }
.logo-mark { width: 28px; height: 28px; filter: drop-shadow(0 0 16px var(--accent-glow)); }
.logo-mark[viewBox] { display: none; } /* svg-use fallback — мы используем <img> */
.logo-text { font-size: 17px; }
.logo-text em { color: var(--accent-2); font-style: normal; font-weight: 600; }

.nav { display: flex; gap: 28px; }
.nav a {
    color: var(--fg-dim); font-size: 14px; font-weight: 500; position: relative;
    transition: color 0.2s var(--ease-soft);
}
.nav a::after {
    content: ""; position: absolute; left: 0; right: 0; bottom: -8px; height: 1px;
    background: var(--accent); transform: scaleX(0); transform-origin: left;
    transition: transform 0.3s var(--ease-apple);
}
.nav a:hover { color: var(--fg); }
.nav a:hover::after { transform: scaleX(1); }

.header-cta { display: flex; gap: 8px; align-items: center; }

/* ---------- buttons ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 22px;
    border-radius: 999px;
    font-size: 14px; font-weight: 600; letter-spacing: -0.01em;
    border: 1px solid transparent;
    transition: transform 0.25s var(--ease-apple), background 0.25s, border-color 0.25s, box-shadow 0.25s, color 0.25s;
    position: relative; overflow: hidden;
    will-change: transform;
}
.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-lg { padding: 16px 30px; font-size: 15px; }
.w-100 { width: 100%; }

.btn-primary {
    background: linear-gradient(135deg, #8b6dff 0%, #c4a8ff 100%);
    color: #10081f;
    box-shadow: 0 8px 30px -8px var(--accent-glow), inset 0 1px 0 rgba(255,255,255,0.35);
}
.btn-primary::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(135deg, #c4a8ff 0%, #8b6dff 100%);
    opacity: 0; transition: opacity 0.3s;
}
.btn-primary > * { position: relative; z-index: 1; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 40px -6px var(--accent-glow); }
.btn-primary:hover::after { opacity: 1; }

.btn-outline {
    background: rgba(255,255,255,0.02);
    border-color: var(--border-strong);
    color: var(--fg);
}
.btn-outline:hover { border-color: var(--accent); background: rgba(139,109,255,0.08); transform: translateY(-1px); }

.btn-ghost {
    color: var(--fg-dim); background: transparent;
}
.btn-ghost:hover { color: var(--fg); background: rgba(255,255,255,0.05); }

.btn .arr { width: 16px; height: 16px; transition: transform 0.3s var(--ease-apple); }
.btn:hover .arr { transform: translateX(3px); }

/* ---------- hero ---------- */
.hero { padding: 140px 0 100px; position: relative; }
.hero-inner { text-align: center; max-width: 840px; margin: 0 auto; }

.badge-pill {
    display: inline-flex; align-items: center; gap: 10px;
    padding: 7px 14px; border-radius: 999px;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    color: var(--fg-dim); font-size: 13px;
    margin-bottom: 28px;
    backdrop-filter: blur(8px);
}
.badge-pill .dot {
    width: 8px; height: 8px; border-radius: 50%; background: #22c55e;
    box-shadow: 0 0 0 4px rgba(34,197,94,0.15); animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 4px rgba(34,197,94,0.15); }
    50%      { box-shadow: 0 0 0 7px rgba(34,197,94,0.05); }
}

.hero-title {
    font-size: clamp(42px, 7vw, 84px);
    font-weight: 800;
    line-height: 1.02;
    letter-spacing: -0.04em;
    margin-bottom: 24px;
}
.hero-title .grad {
    background: linear-gradient(135deg, #ffffff 0%, #c4a8ff 50%, #8b6dff 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.hero-sub {
    font-size: clamp(16px, 1.5vw, 20px);
    color: var(--fg-dim);
    max-width: 620px;
    margin: 0 auto 40px;
    line-height: 1.55;
}
.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-bottom: 60px; }

.hero-meta {
    display: flex; gap: 48px; justify-content: center; flex-wrap: wrap;
    padding-top: 40px; border-top: 1px solid var(--border);
    max-width: 680px; margin: 0 auto;
}
.hero-meta > div { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.hero-meta strong {
    font-size: 22px; font-weight: 700; letter-spacing: -0.02em;
    background: linear-gradient(135deg, #fff, #c4a8ff);
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-meta span { font-size: 13px; color: var(--muted); }

/* ---------- sections ---------- */
section { padding: 120px 0; position: relative; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 56px; }
.section-head h2 {
    font-size: clamp(32px, 4.5vw, 52px);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: 14px;
}
.section-head p { color: var(--fg-dim); font-size: 17px; }

/* ---------- showcase (before/after slider) ---------- */
.showcase { padding-top: 40px; }
.compare {
    position: relative;
    max-width: 980px; margin: 0 auto;
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-strong);
    box-shadow: var(--shadow-lg);
    cursor: ew-resize;
    user-select: none;
    background: #000;
}
.compare-img {
    position: absolute; inset: 0;
    display: grid; place-items: center;
    font-size: 64px; font-weight: 800; letter-spacing: -0.04em;
}
.compare-img.before {
    background:
        radial-gradient(ellipse at 30% 30%, #1a1832, transparent 60%),
        linear-gradient(135deg, #0c0a17 0%, #1a1832 100%);
    color: rgba(255,255,255,0.18);
}
.compare-img.after {
    background:
        radial-gradient(ellipse at 70% 40%, rgba(139,109,255,0.5), transparent 55%),
        radial-gradient(ellipse at 30% 70%, rgba(196,168,255,0.4), transparent 55%),
        linear-gradient(135deg, #1a0f3d 0%, #3a1e7a 100%);
    color: rgba(255,255,255,0.35);
    clip-path: inset(0 0 0 50%);
    transition: none;
}
.compare-img .ph { text-shadow: 0 0 30px rgba(0,0,0,0.4); }
.compare-handle {
    position: absolute; top: 0; bottom: 0; left: 50%; width: 2px;
    background: linear-gradient(180deg, transparent 0%, var(--accent-2) 30%, var(--accent-2) 70%, transparent 100%);
    transform: translateX(-50%);
    pointer-events: none;
}
.compare-line {
    position: absolute; inset: 0;
    box-shadow: 0 0 18px var(--accent-glow);
}
.compare-knob {
    position: absolute; top: 50%; left: 50%;
    width: 52px; height: 52px; border-radius: 50%;
    background: rgba(10,8,24,0.85);
    backdrop-filter: blur(8px);
    border: 1.5px solid var(--accent-2);
    box-shadow: 0 0 30px var(--accent-glow), inset 0 1px 0 rgba(255,255,255,0.15);
    display: grid; place-items: center;
    transform: translate(-50%, -50%);
    color: var(--accent-2);
    transition: transform 0.2s var(--ease-apple), box-shadow 0.2s;
}
.compare-knob:hover { transform: translate(-50%, -50%) scale(1.08); box-shadow: 0 0 40px var(--accent-glow); }
.compare-knob svg { width: 22px; height: 22px; }
.compare-label {
    position: absolute; top: 18px;
    padding: 6px 12px; border-radius: 999px;
    background: rgba(0,0,0,0.5); backdrop-filter: blur(8px);
    font-size: 11px; letter-spacing: 0.1em; font-weight: 700;
    color: var(--fg-dim); border: 1px solid var(--border);
}
.l-before { left: 18px; }
.l-after  { right: 18px; color: var(--accent-2); border-color: rgba(196,168,255,0.3); }

.note { text-align: center; color: var(--muted); font-size: 13px; margin-top: 18px; }

/* ---------- modules ---------- */
.modules { background: linear-gradient(180deg, transparent 0%, rgba(139,109,255,0.03) 50%, transparent 100%); }
.cat-tabs {
    display: flex; flex-wrap: wrap; gap: 8px; justify-content: center;
    margin-bottom: 40px;
}
.cat-tab {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 18px; border-radius: 999px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    color: var(--fg-dim);
    font-size: 13px; font-weight: 600;
    transition: all 0.25s var(--ease-apple);
}
.cat-tab:hover { border-color: var(--border-strong); color: var(--fg); transform: translateY(-1px); }
.cat-tab.active {
    background: linear-gradient(135deg, rgba(139,109,255,0.25), rgba(196,168,255,0.15));
    border-color: var(--accent);
    color: #fff;
    box-shadow: 0 4px 20px -4px var(--accent-glow);
}
.cat-tab .cat-count {
    font-size: 11px; padding: 2px 7px; border-radius: 999px;
    background: rgba(0,0,0,0.3); color: var(--accent-2);
}

.module-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 14px;
}
.module-card {
    position: relative;
    padding: 22px;
    background: linear-gradient(135deg, rgba(26,23,52,0.7) 0%, rgba(20,18,40,0.6) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: transform 0.35s var(--ease-apple), border-color 0.25s, background 0.25s;
    overflow: hidden;
    opacity: 0; transform: translateY(14px);
    animation: revealCard 0.5s var(--ease-apple) forwards;
    animation-delay: calc(var(--i, 0) * 25ms);
}
.module-card::before {
    content: ""; position: absolute; inset: 0;
    background: radial-gradient(300px circle at var(--mx, 50%) var(--my, 50%), rgba(139,109,255,0.18), transparent 60%);
    opacity: 0; transition: opacity 0.3s;
    pointer-events: none;
}
.module-card:hover { transform: translateY(-4px); border-color: rgba(139,109,255,0.4); }
.module-card:hover::before { opacity: 1; }
.module-card h3 { font-size: 15px; margin-bottom: 6px; font-weight: 600; letter-spacing: -0.01em; }
.module-card p { color: var(--fg-dim); font-size: 13px; line-height: 1.5; }
.module-card .cat-chip {
    position: absolute; top: 14px; right: 14px;
    font-size: 10px; letter-spacing: 0.08em; font-weight: 700;
    color: var(--accent-2);
    padding: 3px 8px; border-radius: 999px;
    background: rgba(139,109,255,0.12);
    border: 1px solid rgba(139,109,255,0.2);
}
@keyframes revealCard {
    to { opacity: 1; transform: translateY(0); }
}

/* ---------- features ---------- */
.feat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
}
.feat {
    padding: 32px 28px;
    border-radius: var(--radius);
    background: linear-gradient(160deg, rgba(26,23,52,0.6), rgba(12,10,23,0.4));
    border: 1px solid var(--border);
    transition: border-color 0.3s, transform 0.3s var(--ease-apple);
}
.feat:hover { border-color: rgba(139,109,255,0.3); transform: translateY(-3px); }
.feat-icon {
    width: 54px; height: 54px; border-radius: 14px;
    background: linear-gradient(135deg, rgba(139,109,255,0.25), rgba(196,168,255,0.12));
    border: 1px solid rgba(139,109,255,0.25);
    display: grid; place-items: center; font-size: 24px;
    margin-bottom: 18px;
}
.feat h3 { font-size: 17px; margin-bottom: 8px; font-weight: 600; }
.feat p { color: var(--fg-dim); font-size: 14px; }
.feat code {
    font-family: "SF Mono", Menlo, monospace;
    font-size: 12px;
    color: var(--accent-2);
    background: rgba(139,109,255,0.1);
    padding: 2px 6px; border-radius: 5px;
}

/* ---------- pricing ---------- */
.pricing { background: linear-gradient(180deg, transparent, rgba(139,109,255,0.04), transparent); }
.price-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 18px;
    max-width: 1000px; margin: 0 auto;
}
.price-card {
    position: relative;
    padding: 34px 30px;
    border-radius: var(--radius-lg);
    background: linear-gradient(180deg, rgba(20,18,40,0.7), rgba(12,10,23,0.5));
    border: 1px solid var(--border);
    display: flex; flex-direction: column; gap: 24px;
    transition: transform 0.3s var(--ease-apple), border-color 0.3s;
}
.price-card:hover { transform: translateY(-4px); border-color: rgba(139,109,255,0.3); }
.price-card.featured {
    background:
        linear-gradient(180deg, rgba(139,109,255,0.18), rgba(196,168,255,0.06)),
        linear-gradient(180deg, rgba(20,18,40,0.9), rgba(12,10,23,0.7));
    border-color: rgba(139,109,255,0.4);
    box-shadow: 0 20px 60px -20px var(--accent-glow);
    transform: scale(1.03);
}
.price-card.featured:hover { transform: scale(1.03) translateY(-4px); }
.ribbon {
    position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
    padding: 5px 12px; border-radius: 999px;
    background: linear-gradient(135deg, #8b6dff, #c4a8ff);
    color: #0c0a17; font-size: 11px; font-weight: 700; letter-spacing: 0.08em;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.price-tag {
    display: inline-block;
    font-size: 12px; letter-spacing: 0.12em; font-weight: 700;
    color: var(--accent-2); text-transform: uppercase;
    padding: 4px 10px; border-radius: 999px;
    background: rgba(139,109,255,0.12);
    border: 1px solid rgba(139,109,255,0.2);
}
.price-value {
    margin-top: 14px;
    display: flex; align-items: baseline; gap: 10px;
}
.price-value .old {
    color: var(--muted); font-size: 18px; text-decoration: line-through;
    text-decoration-color: rgba(255,107,107,0.6); text-decoration-thickness: 1.5px;
}
.price-value b {
    font-size: 48px; font-weight: 800; letter-spacing: -0.04em;
    background: linear-gradient(135deg, #fff, #c4a8ff);
    -webkit-background-clip: text; background-clip: text; color: transparent;
}
.price-value em { font-size: 24px; font-weight: 600; font-style: normal; color: var(--accent-2); margin-left: 2px; }
.price-sub { color: var(--fg-dim); font-size: 13px; margin-top: 8px; }

.price-feats { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.price-feats li {
    position: relative; padding-left: 26px;
    color: var(--fg-dim); font-size: 14px;
}
.price-feats li::before {
    content: ""; position: absolute; left: 0; top: 4px;
    width: 16px; height: 16px; border-radius: 50%;
    background: rgba(139,109,255,0.18);
    border: 1px solid rgba(139,109,255,0.35);
    box-shadow: inset 0 0 8px rgba(196,168,255,0.3);
}
.price-feats li::after {
    content: "✓"; position: absolute; left: 4px; top: 3px;
    color: var(--accent-2); font-size: 11px; font-weight: 700;
}

.author-code {
    margin-top: 40px; text-align: center;
    color: var(--fg-dim); font-size: 14px;
    padding: 18px; border-radius: var(--radius);
    background: rgba(139,109,255,0.05);
    border: 1px dashed rgba(139,109,255,0.25);
}
.author-code a { color: var(--accent-2); border-bottom: 1px dashed var(--accent); }
.author-code a:hover { color: #fff; }

/* ---------- faq ---------- */
.faq details {
    padding: 20px 24px;
    background: rgba(20,18,40,0.5);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 10px;
    transition: border-color 0.25s, background 0.25s;
}
.faq details[open] { border-color: rgba(139,109,255,0.3); background: rgba(20,18,40,0.8); }
.faq summary {
    cursor: pointer; list-style: none;
    font-weight: 600; font-size: 15px;
    display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
    content: ""; flex: none;
    width: 20px; height: 20px;
    background:
        linear-gradient(var(--accent-2), var(--accent-2)) center/10px 2px no-repeat,
        linear-gradient(var(--accent-2), var(--accent-2)) center/2px 10px no-repeat;
    transition: transform 0.3s var(--ease-apple);
}
.faq details[open] summary::after { transform: rotate(45deg); background-size: 10px 2px, 2px 0; }
.faq details p { margin-top: 14px; color: var(--fg-dim); font-size: 14px; }

/* ---------- final cta ---------- */
.final-cta { padding: 80px 0 120px; }
.cta-card {
    text-align: center;
    padding: 64px 32px;
    border-radius: var(--radius-lg);
    background:
        radial-gradient(ellipse at top, rgba(139,109,255,0.3), transparent 60%),
        linear-gradient(180deg, rgba(26,23,52,0.8), rgba(12,10,23,0.9));
    border: 1px solid rgba(139,109,255,0.25);
    box-shadow: var(--shadow-lg);
}
.cta-card h2 { font-size: clamp(28px, 4vw, 44px); font-weight: 700; letter-spacing: -0.03em; margin-bottom: 14px; }
.cta-card p { color: var(--fg-dim); font-size: 17px; margin-bottom: 28px; }
.cta-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* ---------- footer ---------- */
.site-footer { padding: 48px 0; border-top: 1px solid var(--border); color: var(--muted); font-size: 13px; position: relative; z-index: 2; }
.footer-inner { display: flex; flex-direction: column; gap: 20px; align-items: center; text-align: center; }
.foot-brand { display: flex; align-items: center; gap: 10px; color: var(--fg); font-weight: 700; }
.foot-brand em { color: var(--accent-2); font-style: normal; }
.foot-nav { display: flex; gap: 22px; flex-wrap: wrap; justify-content: center; }
.foot-nav a { color: var(--muted); transition: color 0.2s; }
.foot-nav a:hover { color: var(--fg); }
.foot-copy { color: var(--muted); }

/* ---------- reveal animation ---------- */
[data-reveal] { opacity: 0; transform: translateY(30px); transition: opacity 0.8s var(--ease-apple), transform 0.8s var(--ease-apple); }
[data-reveal].revealed { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
    .nav { display: none; }
    .hero { padding: 80px 0 60px; }
    section { padding: 80px 0; }
    .hero-meta { gap: 28px; padding-top: 28px; }
    .price-card.featured { transform: none; }
    .price-card.featured:hover { transform: translateY(-4px); }
    .header-cta .btn-ghost { display: none; }
}
@media (max-width: 500px) {
    .header-inner { padding: 12px 16px; }
    .container { padding: 0 16px; }
    .hero-title { font-size: 40px; }
    .compare-knob { width: 44px; height: 44px; }
    .cta-card { padding: 44px 20px; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
    .blob { animation: none; }
    .cursor-aura { display: none; }
}