/* === ОПРЕДЕЛЕНИЕ ПЕРЕМЕННЫХ ТЕМЫ === */
:root {
    --bg: #08080d;
    --surface: #101018;
    --card: #16161f;
    --border: #1e1e2a;
    --fg: #e8e8ed;
    --muted: #6b6b80;
    --accent: #00e87b;
    --accent-dim: #00c968;
    --accent-glow: rgba(0,232,123,0.15);
    --warm: #ff6b35;
    --hero-glow-1: rgba(0,232,123,0.12);
    --hero-glow-2: rgba(255,107,53,0.08);
    --scroll-track: #08080d;
    --scroll-thumb: #1e1e2a;
    --particle-opacity: 0.4;
    --line-opacity: 0.08;
}

.light {
    --bg: #ffffff;
    --surface: #f8f9fa;
    --card: #ffffff;
    --border: #e5e7eb;
    --fg: #111827;
    --muted: #6b7280;
    --accent: #00b862;
    --accent-dim: #009e54;
    --accent-glow: rgba(0,184,98,0.15);
    --warm: #f97316;
    --hero-glow-1: rgba(0,184,98,0.15);
    --hero-glow-2: rgba(249,115,22,0.1);
    --scroll-track: #f1f1f1;
    --scroll-thumb: #d1d5db;
    --particle-opacity: 0.6;
    --line-opacity: 0.15;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'DM Sans', sans-serif; background: var(--bg); color: var(--fg); overflow-x: hidden; transition: background 0.3s ease, color 0.3s ease; }
::selection { background: var(--accent); color: #fff; }
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--scroll-track); }
::-webkit-scrollbar-thumb { background: var(--scroll-thumb); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* =========================================
   МИКРО-ФРЕЙМВОРК ЗАМЕНЫ TAILWIND (Offline)
   ========================================= */

/* --- Цвета --- */
.text-fg { color: var(--fg); }
.text-fg-90 { color: color-mix(in srgb, var(--fg) 90%, transparent); }
.text-muted { color: var(--muted); }
.text-accent { color: var(--accent); }
.text-warm { color: var(--warm); }
.text-bg { color: var(--bg); }

.bg-bg { background-color: var(--bg); }
.bg-surface { background-color: var(--surface); }
.bg-card { background-color: var(--card); }
.bg-accent { background-color: var(--accent); }
.bg-accent-glow { background-color: var(--accent-glow); }

/* Цвета с прозрачностью (color-mix) */
.bg-accent\/5 { background-color: color-mix(in srgb, var(--accent) 5%, transparent); }
.bg-accent\/10 { background-color: color-mix(in srgb, var(--accent) 10%, transparent); }
.bg-accent\/15 { background-color: color-mix(in srgb, var(--accent) 15%, transparent); }
.bg-accent\/20 { background-color: color-mix(in srgb, var(--accent) 20%, transparent); }
.bg-accent\/30 { background-color: color-mix(in srgb, var(--accent) 30%, transparent); }
.bg-accent\/40 { background-color: color-mix(in srgb, var(--accent) 40%, transparent); }
.bg-fg\/5 { background-color: color-mix(in srgb, var(--fg) 5%, transparent); }
.bg-fg\/10 { background-color: color-mix(in srgb, var(--fg) 10%, transparent); }
.bg-warm\/10 { background-color: color-mix(in srgb, var(--warm) 10%, transparent); }
.bg-blue-500\/10 { background-color: rgba(59, 130, 246, 0.1); }

.border-border { border-color: var(--border); }
.border-accent\/20 { border-color: color-mix(in srgb, var(--accent) 20%, transparent); }
.border-accent\/30 { border-color: color-mix(in srgb, var(--accent) 30%, transparent); }
.border-border\/50 { border-color: color-mix(in srgb, var(--border) 50%, transparent); }

/* Произвольные цвета (Arbitrary values из HTML) */
.bg-\[\#ff5f57\] { background-color: #ff5f57; }
.bg-\[\#febc2e\] { background-color: #febc2e; }
.bg-\[\#28c840\] { background-color: #28c840; }

/* --- Отступы и размеры --- */
.max-w-7xl { max-width: 80rem; }
.max-w-5xl { max-width: 64rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-lg { max-width: 32rem; }
.w-full { width: 100%; }
.w-32 { width: 8rem; } .w-24 { width: 6rem; } .w-20 { width: 5rem; } .w-12 { width: 3rem; } .w-11 { width: 2.75rem; } .w-10 { width: 2.5rem; } .w-8 { width: 2rem; } .w-7 { width: 1.75rem; } .w-6 { width: 1.5rem; } .w-3 { width: 0.75rem; } .w-2 { width: 0.5rem; }
.h-16 { height: 4rem; } .h-12 { height: 3rem; } .h-8 { height: 2rem; } .h-7 { height: 1.75rem; } .h-6 { height: 1.5rem; } .h-5 { height: 1.25rem; } .h-3 { height: 0.75rem; } .h-2\.5 { height: 0.625rem; } .h-2 { height: 0.5rem; }
.min-h-screen { min-height: 100vh; }

.mx-auto { margin-left: auto; margin-right: auto; }
.ml-2 { margin-left: 0.5rem; } .ml-3 { margin-left: 0.75rem; }
.mr-2 { margin-right: 0.5rem; }
.mb-2 { margin-bottom: 0.5rem; } .mb-3 { margin-bottom: 0.75rem; } .mb-4 { margin-bottom: 1rem; } .mb-5 { margin-bottom: 1.25rem; } .mb-6 { margin-bottom: 1.5rem; } .mb-8 { margin-bottom: 2rem; } .mb-10 { margin-bottom: 2.5rem; } .mb-12 { margin-bottom: 3rem; } .mb-14 { margin-bottom: 3.5rem; } .mb-16 { margin-bottom: 4rem; }
.mt-2 { margin-top: 0.5rem; } .mt-6 { margin-top: 1.5rem; } .mt-8 { margin-top: 2rem; }

.p-4 { padding: 1rem; } .p-6 { padding: 1.5rem; } .p-12 { padding: 3rem; } .p-20 { padding: 5rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; } .px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; } .py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; } .py-16 { padding-top: 4rem; padding-bottom: 4rem; } .py-20 { padding-top: 5rem; padding-bottom: 5rem; } .py-24 { padding-top: 6rem; padding-bottom: 6rem; }
.pt-8 { padding-top: 2rem; } .pt-16 { padding-top: 4rem; }
.gap-2 { gap: 0.5rem; } .gap-3 { gap: 0.75rem; } .gap-4 { gap: 1rem; } .gap-5 { gap: 1.25rem; } .gap-6 { gap: 1.5rem; } .gap-8 { gap: 2rem; } .gap-10 { gap: 2.5rem; } .gap-16 { gap: 4rem; }
.space-y-3 > * + * { margin-top: 0.75rem; }
.space-y-4 > * + * { margin-top: 1rem; }

/* --- Типографика --- */
.font-display { font-family: 'Space Grotesk', sans-serif; }
.font-mono { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; }
.font-medium { font-weight: 500; } .font-semibold { font-weight: 600; } .font-bold { font-weight: 700; }
.text-xs { font-size: 0.75rem; line-height: 1rem; } .text-sm { font-size: 0.875rem; line-height: 1.25rem; } .text-lg { font-size: 1.125rem; line-height: 1.75rem; } .text-xl { font-size: 1.25rem; line-height: 1.75rem; } .text-3xl { font-size: 1.875rem; line-height: 2.25rem; } .text-4xl { font-size: 2.25rem; line-height: 2.5rem; } .text-5xl { font-size: 3rem; line-height: 1; } .text-6xl { font-size: 3.75rem; line-height: 1; }
.text-center { text-align: center; }
.uppercase { text-transform: uppercase; }
.leading-tight { line-height: 1.25; } .leading-relaxed { line-height: 1.625; }
.tracking-wide { letter-spacing: 0.025em; }

/* --- Flexbox --- */
.flex { display: flex; } .flex-col { flex-direction: column; } .flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; } .items-start { align-items: flex-start; }
.justify-between { justify-content: space-between; } .justify-center { justify-content: center; }
.flex-1 { flex: 1 1 0%; } .flex-shrink-0 { flex-shrink: 0; }
.-space-x-3 > * + * { margin-left: -0.75rem; }

/* --- Grid --- */
.grid { display: grid; }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } .grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* --- Отображение --- */
.relative { position: relative; } .absolute { position: absolute; } .fixed { position: fixed; } .inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.z-10 { z-index: 10; } .z-100 { z-index: 100; } .z-105 { z-index: 105; } .z-110 { z-index: 110; } .z-200 { z-index: 200; }
.overflow-hidden { overflow: hidden; }
.antialiased { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
.hidden { display: none; } .inline-block { display: inline-block; } .inline-flex { display: inline-flex; }

/* --- Скругления и рамки --- */
.rounded-full { border-radius: 9999px; } .rounded-lg { border-radius: 0.5rem; } .rounded-xl { border-radius: 0.75rem; } .rounded-md { border-radius: 0.375rem; } .rounded-sm { border-radius: 0.125rem; }
.border { border-width: 1px; border-style: solid; border-color: var(--border); }
.border-t { border-top-width: 1px; border-top-style: solid; border-top-color: var(--border); }
.border-b { border-bottom-width: 1px; border-bottom-style: solid; border-bottom-color: var(--border); }
.border-2 { border-width: 2px; border-style: solid; border-color: var(--border); }

/* --- Адаптив --- */
@media (min-width: 640px) {
    .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .sm\:text-5xl { font-size: 3rem; line-height: 1; }
}
@media (min-width: 768px) {
    .md\:inline-block { display: inline-block; }
    .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .md\:py-32 { padding-top: 8rem; padding-bottom: 8rem; }
    .md\:gap-4 { gap: 1rem; }
    .md\:p-6 { padding: 1.5rem; }
    .md\:px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
}
@media (min-width: 1024px) {
    .lg\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .lg\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
    .lg\:text-5xl { font-size: 3rem; line-height: 1; }
    .lg\:text-6xl { font-size: 3.75rem; line-height: 1; }
}

/* =========================================
   КОМПОНЕНТЫ ДИЗАЙНА (Твои стили)
   ========================================= */

/* Навбар */
.navbar { position: fixed; top: 0; left: 0; right: 0; z-index: 100; backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); background: rgba(8,8,13,0.7); border-bottom: 1px solid rgba(30,30,42,0.5); transition: all 0.4s ease; }
.light .navbar { background: rgba(255,255,255,0.85); border-bottom: 1px solid rgba(229,231,235,0.6); }
.navbar.scrolled { background: rgba(8,8,13,0.92); }
.light .navbar.scrolled { background: rgba(255,255,255,0.95); }
.nav-link { position: relative; color: var(--muted); transition: color 0.3s; font-size: 0.9rem; font-weight: 500; text-decoration: none; }
.nav-link:hover { color: var(--fg); }
.nav-link::after { content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px; background: var(--accent); transition: width 0.3s ease; }
.nav-link:hover::after { width: 100%; }

/* Свечение */
.hero-glow { position: absolute; width: 600px; height: 600px; background: radial-gradient(circle, var(--hero-glow-1) 0%, transparent 70%); border-radius: 50%; filter: blur(80px); pointer-events: none; }
.hero-glow-2 { position: absolute; width: 400px; height: 400px; background: radial-gradient(circle, var(--hero-glow-2) 0%, transparent 70%); border-radius: 50%; filter: blur(60px); pointer-events: none; }

/* Кнопки */
.btn-primary { background: var(--accent); color: var(--bg); font-weight: 700; padding: 14px 32px; border-radius: 12px; border: none; cursor: pointer; font-size: 1rem; transition: all 0.3s ease; position: relative; overflow: hidden; font-family: 'Space Grotesk', sans-serif; text-decoration: none; display: inline-block; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 30px var(--accent-glow); }
.btn-primary:active { transform: translateY(0); }
.btn-secondary { background: transparent; color: var(--fg); font-weight: 600; padding: 14px 32px; border-radius: 12px; border: 1px solid var(--border); cursor: pointer; font-size: 1rem; transition: all 0.3s ease; font-family: 'Space Grotesk', sans-serif; text-decoration: none; display: inline-block; }
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

/* Карточки */
.feature-card { background: var(--card); border: 1px solid var(--border); border-radius: 20px; padding: 36px; transition: all 0.4s ease; position: relative; overflow: hidden; }
.feature-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 2px; background: linear-gradient(90deg, transparent, var(--accent), transparent); opacity: 0; transition: opacity 0.4s ease; }
.feature-card:hover { border-color: var(--accent); transform: translateY(-6px); box-shadow: 0 20px 60px rgba(0,0,0,0.15); }
.light .feature-card:hover { box-shadow: 0 10px 40px rgba(0,0,0,0.08); }
.feature-card:hover::before { opacity: 1; }
.feature-icon { width: 56px; height: 56px; border-radius: 14px; background: var(--accent-glow); display: flex; align-items: center; justify-content: center; color: var(--accent); font-size: 1.4rem; transition: all 0.3s ease; }
.feature-card:hover .feature-icon { background: var(--accent); color: var(--bg); transform: scale(1.1); }

/* Превью конструктора */
.builder-preview { background: var(--surface); border: 1px solid var(--border); border-radius: 16px; overflow: hidden; box-shadow: 0 40px 100px rgba(0,0,0,0.3); }
.light .builder-preview { box-shadow: 0 20px 60px rgba(0,0,0,0.1); }
.preview-dot { width: 12px; height: 12px; border-radius: 50%; }
.preview-block { border-radius: 8px; transition: all 0.4s ease; cursor: pointer; position: relative; }
.preview-block:hover { border-color: var(--accent) !important; box-shadow: 0 0 20px var(--accent-glow); }
.preview-block.selected { border-color: var(--accent) !important; }
.preview-block.selected::after { content: ''; position: absolute; inset: -3px; border: 2px dashed var(--accent); border-radius: 10px; animation: dash-rotate 8s linear infinite; }

/* Шаги */
.step-number { width: 64px; height: 64px; border-radius: 50%; background: linear-gradient(135deg, var(--accent-glow), rgba(0,0,0,0)); border: 2px solid var(--accent); display: flex; align-items: center; justify-content: center; font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 1.4rem; color: var(--accent); flex-shrink: 0; }
.step-connector { width: 2px; height: 40px; margin: 0 auto; background: linear-gradient(to bottom, var(--accent), transparent); }

/* Тарифы */
.pricing-card { background: var(--card); border: 1px solid var(--border); border-radius: 24px; padding: 40px; transition: all 0.4s ease; position: relative; }
.pricing-card:hover { transform: translateY(-8px); box-shadow: 0 30px 80px rgba(0,0,0,0.2); }
.light .pricing-card:hover { box-shadow: 0 15px 50px rgba(0,0,0,0.08); }
.pricing-card.popular { border-color: var(--accent); background: linear-gradient(180deg, var(--accent-glow) 0%, var(--card) 40%); }
.pricing-card.popular::before { content: 'Популярный'; position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--accent); color: var(--bg); padding: 6px 20px; border-radius: 20px; font-weight: 700; font-size: 0.8rem; font-family: 'Space Grotesk', sans-serif; letter-spacing: 0.02em; }
.check-icon { color: var(--accent); font-size: 0.9rem; }
.cross-icon { color: var(--border); font-size: 0.9rem; }

/* Отзывы */
.testimonial-card { background: var(--card); border: 1px solid var(--border); border-radius: 20px; padding: 32px; transition: all 0.3s ease; }
.testimonial-card:hover { border-color: var(--accent); transform: translateY(-4px); }

/* FAQ */
.faq-item { border: 1px solid var(--border); border-radius: 16px; overflow: hidden; transition: all 0.3s ease; }
.faq-item:hover { border-color: var(--accent); }
.faq-item.active { border-color: var(--accent); }
.faq-question { padding: 20px 24px; cursor: pointer; display: flex; align-items: center; justify-content: space-between; background: var(--card); font-weight: 600; transition: background 0.3s; user-select: none; }
.faq-question:hover { background: var(--surface); }
.faq-arrow { transition: transform 0.3s ease; color: var(--muted); font-size: 0.8rem; }
.faq-item.active .faq-arrow { transform: rotate(180deg); color: var(--accent); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.4s ease; background: var(--surface); color: var(--muted); line-height: 1.7; }
.faq-item.active .faq-answer { max-height: 300px; padding: 20px 24px; }

/* Логотипы */
.logos-track { display: flex; gap: 60px; align-items: center; animation: scroll-logos 25s linear infinite; }
.logo-item { color: var(--border); font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 1.3rem; white-space: nowrap; transition: color 0.3s; display: flex; align-items: center; gap: 0.5rem; }
.logo-item:hover { color: var(--muted); }
.logo-item img { height: 24px; width: auto; filter: grayscale(100%) opacity(0.5); transition: all 0.3s; }
.logo-item:hover img { filter: grayscale(0%) opacity(1); }

/* Статистика */
.stat-value { font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 3rem; color: var(--fg); line-height: 1; }

/* CTA */
.cta-section { position: relative; overflow: hidden; background: linear-gradient(135deg, var(--surface) 0%, var(--card) 100%); border: 1px solid var(--border); border-radius: 32px; }
.cta-glow { position: absolute; width: 400px; height: 400px; background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%); border-radius: 50%; filter: blur(80px); pointer-events: none; }

/* Тост */
.toast { position: fixed; bottom: 30px; right: 30px; z-index: 200; background: var(--card); border: 1px solid var(--accent); border-radius: 14px; padding: 16px 24px; display: flex; align-items: center; gap: 12px; transform: translateY(120px); opacity: 0; transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1); box-shadow: 0 20px 60px rgba(0,0,0,0.3); }
.toast.show { transform: translateY(0); opacity: 1; }

/* Бургер */
.burger { display: none; flex-direction: column; gap: 5px; cursor: pointer; z-index: 110; }
.burger span { width: 24px; height: 2px; background: var(--fg); transition: all 0.3s; border-radius: 2px; }
.burger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.burger.active span:nth-child(2) { opacity: 0; }
.burger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
.mobile-menu { position: fixed; top: 0; right: -100%; width: 280px; height: 100vh; background: var(--surface); backdrop-filter: blur(20px); z-index: 105; padding: 100px 32px 40px; transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1); border-left: 1px solid var(--border); }
.mobile-menu.open { right: 0; }
.mobile-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 104; opacity: 0; pointer-events: none; transition: opacity 0.3s; }
.light .mobile-overlay { background: rgba(0,0,0,0.3); }
.mobile-overlay.show { opacity: 1; pointer-events: all; }

/* Тема */
.theme-toggle { background: transparent; border: 1px solid var(--border); color: var(--fg); width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: all 0.3s ease; }
.theme-toggle:hover { border-color: var(--accent); color: var(--accent); transform: rotate(15deg); }

/* Анимации */
.reveal { opacity: 0; transform: translateY(40px); transition: opacity 0.8s ease, transform 0.8s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; } .reveal-delay-2 { transition-delay: 0.2s; } .reveal-delay-3 { transition-delay: 0.3s; } .reveal-delay-4 { transition-delay: 0.4s; }

#particles-canvas { position: fixed; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; z-index: 0; }

@keyframes scroll-logos { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
@keyframes dash-rotate { to { stroke-dashoffset: -100; } }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@keyframes pulse-ring { 0% { transform: scale(0.8); opacity: 0.6; } 100% { transform: scale(1.6); opacity: 0; } }
.float-anim { animation: float 6s ease-in-out infinite; }

@media (max-width: 768px) {
    .burger { display: flex; }
    .nav-links-desktop { display: none !important; }
    .stat-value { font-size: 2.2rem; }
    .hero-glow { width: 300px; height: 300px; }
    .hero-glow-2 { width: 200px; height: 200px; }
}

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