/* ===== INDEX PAGE STYLES — Grammers ===== */
/* Базовые стили, навбар, кнопки, футер, анимации — в common.css */

/* Scroll progress bar */
.scroll-progress { position: fixed; top: 0; left: 0; width: 0%; height: 2px; background: var(--primary-light); z-index: 1100; -webkit-transition: none; transition: none; box-shadow: 0 0 12px var(--primary-glow), 0 0 4px var(--primary-light); }

/* Staggered reveal for grid children */
.stagger-children > *:nth-child(1) { transition-delay: 0s; }
.stagger-children > *:nth-child(2) { transition-delay: 0.1s; }
.stagger-children > *:nth-child(3) { transition-delay: 0.15s; }
.stagger-children > *:nth-child(4) { transition-delay: 0.2s; }
.stagger-children > *:nth-child(5) { transition-delay: 0.25s; }
.stagger-children > *:nth-child(6) { transition-delay: 0.3s; }
.stagger-children > *:nth-child(7) { transition-delay: 0.35s; }
.stagger-children > *:nth-child(8) { transition-delay: 0.4s; }

/* ===== 3D Telegram Plane ===== */
.tg-plane-container {
    position: fixed;
    z-index: 999;
    pointer-events: auto;
    cursor: grab;
    will-change: transform;
    -webkit-transition: opacity 0.4s ease;
    transition: opacity 0.4s ease;
    opacity: 0;
}
.tg-plane-container.visible { opacity: 1; }
.tg-plane-container.hidden-plane { opacity: 0; }
.tg-plane-container.dragging { cursor: grabbing; }
.tg-plane-container.dragging .tg-plane-svg { filter: drop-shadow(0 0 16px rgba(0, 212, 170, 0.6)); }
.tg-plane-container.launched .tg-plane-svg { filter: drop-shadow(0 0 24px rgba(0, 212, 170, 0.8)); }

.tg-plane-wrapper {
    position: relative;
    width: 80px;
    height: 80px;
    -webkit-transform-style: preserve-3d;
    transform-style: preserve-3d;
    perspective: 600px;
}

.tg-plane-svg {
    width: 80px;
    height: 80px;
    -webkit-transform-style: preserve-3d;
    transform-style: preserve-3d;
    -webkit-transition: transform 0.05s linear, filter 0.3s ease;
    transition: transform 0.05s linear, filter 0.3s ease;
}

/* Trail particles */
.tg-plane-trail {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
}

.trail-dot {
    position: absolute;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #00D4AA;
    opacity: 0;
    -webkit-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    -webkit-transition: opacity 0.3s ease;
    transition: opacity 0.3s ease;
    box-shadow: 0 0 8px 2px rgba(0, 212, 170, 0.5);
}
.trail-dot:nth-child(odd) {
    background: #5EEDC8;
    width: 4px;
    height: 4px;
}

/* Sparkle burst on section transitions */
@keyframes sparkle {
    0% { transform: scale(0) rotate(0deg); opacity: 1; }
    50% { opacity: 0.8; }
    100% { transform: scale(1.5) rotate(180deg); opacity: 0; }
}
.tg-sparkle {
    position: fixed;
    pointer-events: none;
    z-index: 998;
    width: 20px;
    height: 20px;
}
.tg-sparkle::before, .tg-sparkle::after {
    content: '';
    position: absolute;
    background: #00D4AA;
    border-radius: 50%;
}
.tg-sparkle::before { width: 100%; height: 3px; top: 50%; left: 0; transform: translateY(-50%); }
.tg-sparkle::after { width: 3px; height: 100%; left: 50%; top: 0; transform: translateX(-50%); }

/* Hide on mobile / reduced motion */
@media (max-width: 768px) { .tg-plane-container { display: none !important; } }
@media (prefers-reduced-motion: reduce) { .tg-plane-container { display: none !important; } }

/* Floating animation for mockups */
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@keyframes floatDelayed { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.floating { animation: float 6s ease-in-out infinite; }
.floating-delayed { animation: floatDelayed 7s ease-in-out 1s infinite; }

/* Section parallax backgrounds */
.parallax-bg { position: absolute; width: 100%; height: 100%; top: 0; left: 0; pointer-events: none; z-index: -1; overflow: hidden; }
.parallax-bg .orb { position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.12; will-change: transform; -webkit-transition: transform 0.1s linear; transition: transform 0.1s linear; }
.parallax-bg .orb-1 { width: 400px; height: 400px; background: var(--primary-light); top: -100px; right: -100px; }
.parallax-bg .orb-2 { width: 300px; height: 300px; background: var(--secondary-gold); bottom: -80px; left: -80px; }
.parallax-bg .orb-3 { width: 250px; height: 250px; background: var(--success); top: 50%; left: 60%; }

/* Scroll-triggered scale up for section headers */
.section-header h2 { -webkit-transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.6s ease; transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.6s ease; }

/* Horizontal reveal line */
.reveal-line { width: 0; height: 2px; background: var(--gradient-brand); margin: 0 auto 32px; -webkit-transition: width 1s cubic-bezier(0.16, 1, 0.3, 1); transition: width 1s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal-line.visible { width: 80px; }

/* Главный экран — два столбца */
.hero { padding: 140px 0 80px; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -30%; left: 20%; width: 900px; height: 900px; background: radial-gradient(circle, rgba(0, 212, 170, 0.06) 0%, rgba(8, 11, 16, 0) 70%); z-index: -1; pointer-events: none; }
.hero::after { content: ''; position: absolute; bottom: -20%; right: -5%; width: 600px; height: 600px; background: radial-gradient(circle, rgba(0, 212, 170, 0.04) 0%, transparent 70%); z-index: -1; pointer-events: none; }

.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }

.hero-content { position: relative; z-index: 2; }
.hero h1 { font-size: clamp(36px, 4vw, 54px); font-weight: 900; line-height: 1.1; margin-bottom: 28px; letter-spacing: -1.5px; text-transform: uppercase; }
.hero h1 span { color: var(--primary-light); }
.hero-subtitle { font-size: clamp(16px, 1.8vw, 20px); color: var(--text-muted); margin-bottom: 44px; max-width: 500px; line-height: 1.6; }
.hero-actions { display: flex; gap: 16px; }

/* Hero-мокапы (device frames) — 3D */
.hero-mockup { position: relative; perspective: 1200px; display: flex; justify-content: center; align-items: center; min-height: 400px; }
.hero-image-placeholder { display: flex; gap: 24px; perspective: 1200px; }
.hero-img { max-width: 100%; height: auto; border-radius: 12px; filter: drop-shadow(0 20px 60px rgba(0, 0, 0, 0.5)); }

/* Device frame — телефон */
.device-phone { width: 280px; border-radius: 32px; border: 2px solid rgba(255,255,255,0.08); background: var(--bg-card-solid); box-shadow: 0 25px 60px -12px rgba(0,0,0,0.7), 0 0 60px rgba(0, 212, 170, 0.06); overflow: hidden; -webkit-transform: translateY(20px) rotateY(-8deg) rotateX(5deg); transform: translateY(20px) rotateY(-8deg) rotateX(5deg); -webkit-transform-style: preserve-3d; transform-style: preserve-3d; -webkit-transition: transform 0.15s ease-out, box-shadow 0.3s ease; transition: transform 0.15s ease-out, box-shadow 0.3s ease; }
.device-phone-notch { height: 28px; background: #0a0d14; border-radius: 0 0 16px 16px; width: 120px; margin: 0 auto; }
.device-phone img { width: 100%; height: auto; display: block; border-radius: 0; }
.device-phone::after { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(135deg, rgba(0, 212, 170, 0.04) 0%, transparent 60%); pointer-events: none; border-radius: 28px; }

/* Device frame — браузер (панель) */
.device-browser { width: 600px; border-radius: 16px; border: 1px solid rgba(255,255,255,0.06); background: var(--bg-card-solid); box-shadow: 0 25px 60px -12px rgba(0,0,0,0.7), 0 0 60px rgba(0, 212, 170, 0.06); overflow: hidden; -webkit-transform: rotateY(6deg) rotateX(5deg); transform: rotateY(6deg) rotateX(5deg); -webkit-transform-style: preserve-3d; transform-style: preserve-3d; -webkit-transition: transform 0.15s ease-out, box-shadow 0.3s ease; transition: transform 0.15s ease-out, box-shadow 0.3s ease; display: none; }
.device-browser::after { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(135deg, rgba(0, 212, 170, 0.03) 0%, transparent 50%); pointer-events: none; border-radius: 16px; }
@media(min-width: 900px) { .device-browser { display: block; } }
.device-browser-bar { background-color: #0f1115; padding: 12px 16px; display: flex; gap: 8px; align-items: center; border-bottom: 1px solid var(--border-color); }
.device-browser-bar .dot { width: 12px; height: 12px; border-radius: 50%; }
.device-browser-bar .dot:nth-child(1) { background-color: #f56565; }
.device-browser-bar .dot:nth-child(2) { background-color: #ecc94b; }
.device-browser-bar .dot:nth-child(3) { background-color: #48bb78; }
.device-browser-bar .url-bar { flex: 1; margin-left: 12px; background: rgba(255,255,255,0.05); border-radius: 6px; padding: 4px 12px; font-size: 12px; color: var(--text-muted); }
.device-browser img { width: 100%; height: auto; display: block; border-radius: 0; }

/* Полоска логотипов интеграций */
.integrations-strip { padding: 60px 0; border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); overflow: hidden; }
.integrations-strip .section-label { text-align: center; color: var(--text-muted); font-size: 14px; font-weight: 500; margin-bottom: 32px; text-transform: uppercase; letter-spacing: 2px; }
.integrations-logos { display: grid; grid-template-columns: repeat(7, 1fr); gap: 16px; }
.integration-card { display: flex; flex-direction: column; align-items: center; gap: 12px; padding: 28px 12px; border-radius: var(--radius-sm); background: var(--glass-bg); border: 1px solid var(--glass-border); transition: var(--transition); cursor: default; -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
.integration-card:hover { border-color: var(--border-glow); transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.4), 0 0 20px rgba(0,212,170,0.06); }
.integration-logo { height: 32px; width: auto; max-width: 120px; object-fit: contain; transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1); border-radius: 0; }
.integration-card:hover .integration-logo { transform: scale(1.1); }
.integration-tag { font-size: 11px; color: var(--text-muted); background: rgba(255,255,255,0.05); padding: 3px 12px; border-radius: 12px; font-weight: 500; }

/* Showcase: телефон + дашборд */
.showcase-section { padding: 80px 0; }
.showcase-grid { display: flex; justify-content: center; align-items: center; gap: 40px; perspective: 1200px; }
.showcase-section .device-phone { width: 280px; border-radius: 32px; border: 2px solid rgba(255,255,255,0.08); background: var(--bg-card-solid); box-shadow: 0 25px 60px -12px rgba(0,0,0,0.7), 0 0 60px rgba(0, 212, 170, 0.06); overflow: hidden; transform: translateY(20px) rotateY(-8deg) rotateX(5deg); transform-style: preserve-3d; transition: transform 0.15s ease-out, box-shadow 0.3s ease; flex-shrink: 0; }
.showcase-section .device-phone:hover { transform: translateY(10px) rotateY(-3deg) rotateX(2deg); box-shadow: 0 30px 70px -10px rgba(0,0,0,0.8), 0 0 80px rgba(0, 212, 170, 0.1); }
.showcase-section .device-phone-notch { height: 28px; background: #0a0d14; border-radius: 0 0 16px 16px; width: 120px; margin: 0 auto; }
.showcase-section .device-phone img { width: 100%; height: auto; display: block; border-radius: 0; }
.showcase-section .device-browser { width: 560px; border-radius: 16px; border: 1px solid rgba(255,255,255,0.08); background: var(--bg-card-solid); box-shadow: 0 25px 60px -12px rgba(0,0,0,0.7); overflow: hidden; transform: translateY(-20px) rotateY(6deg) rotateX(3deg); transform-style: preserve-3d; transition: transform 0.15s ease-out, box-shadow 0.3s ease; }
.showcase-section .device-browser:hover { transform: translateY(-10px) rotateY(2deg) rotateX(1deg); box-shadow: 0 30px 70px -10px rgba(0,0,0,0.8), 0 0 80px rgba(0, 212, 170, 0.08); }
.showcase-section .device-browser-bar { background-color: #0f1115; padding: 12px 16px; display: flex; gap: 8px; align-items: center; border-bottom: 1px solid var(--border-color); }
.showcase-section .device-browser-bar .dot { width: 12px; height: 12px; border-radius: 50%; }
.showcase-section .device-browser-bar .dot:nth-child(1) { background-color: #f56565; }
.showcase-section .device-browser-bar .dot:nth-child(2) { background-color: #ecc94b; }
.showcase-section .device-browser-bar .dot:nth-child(3) { background-color: #48bb78; }
.showcase-section .device-browser-bar .url-bar { flex: 1; margin-left: 12px; background: rgba(255,255,255,0.05); border-radius: 6px; padding: 4px 12px; font-size: 12px; color: var(--text-muted); }
.showcase-section .device-browser img { width: 100%; height: auto; display: block; border-radius: 0; }

/* Блок Позиционирования (VS) */
.comparison-section { padding: 100px 0; background-color: rgba(0, 212, 170, 0.01); border-top: 1px solid rgba(255,255,255,0.04); }
.comparison-wrapper { display: flex; gap: 60px; align-items: center; justify-content: space-between; }
.comparison-text { flex: 1; }
.vs-badge { display: inline-block; background: var(--primary-subtle); color: var(--primary-light); padding: 6px 16px; border-radius: 20px; font-weight: bold; font-size: 14px; margin-bottom: 24px; border: 1px solid rgba(0, 212, 170, 0.15); }
.comparison-text h2 { font-size: 32px; line-height: 1.2; margin-bottom: 24px; }
.comparison-text h2 span { color: var(--primary-light); }
.comparison-text p { color: var(--text-muted); font-size: 16px; margin-bottom: 24px; }
.comparison-text p strong { color: var(--text-main); }
.comp-list { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.comp-list li { position: relative; padding-left: 28px; color: var(--text-main); font-size: 15px; }
.comp-list li::before { content: "\2713"; position: absolute; left: 0; color: var(--success); font-weight: bold; }
.comparison-visual { flex: 1; display: flex; align-items: center; justify-content: center; gap: 16px; background: rgba(0,0,0,0.2); padding: 40px; border-radius: 20px; border: 1px dashed var(--border-color); }
.comp-box { padding: 30px; border-radius: 12px; text-align: center; display: flex; flex-direction: column; justify-content: center; min-width: 160px; }
.system-box { background: var(--bg-card); border: 1px solid #4a5568; color: var(--text-muted); }
.our-box { background: linear-gradient(135deg, rgba(0, 212, 170, 0.15) 0%, rgba(13, 147, 115, 0.3) 100%); border: 1px solid var(--primary-light); color: white; transform: scale(1.1); box-shadow: 0 10px 20px rgba(0, 212, 170, 0.2); z-index: 2; }
.comp-box span { font-size: 18px; font-weight: bold; margin-bottom: 8px; }
.comp-box small { font-size: 12px; opacity: 0.8; }
.comp-link { color: var(--text-muted); }

/* O2O Секция */
.o2o-section { padding: 100px 0; border-top: 1px solid rgba(255,255,255,0.04); }
.o2o-section .section-header h2 span { color: var(--primary-light); }
.o2o-steps { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-bottom: 40px; }
.o2o-step { display: flex; flex-direction: column; align-items: center; text-align: center; padding: 32px 20px; background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: var(--radius); transition: var(--transition); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); }
.o2o-step:hover { border-color: var(--border-glow); transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,0,0,0.4), 0 0 20px rgba(0,212,170,0.06); }
.o2o-step-number { font-size: 13px; font-weight: 700; color: var(--primary-light); margin-bottom: 12px; text-transform: uppercase; letter-spacing: 2px; }
.o2o-infographic { margin-bottom: 20px; transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1); }
.o2o-step:hover .o2o-infographic { transform: scale(1.05); }
.o2o-img-placeholder { width: 100%; max-width: 280px; height: 180px; background: rgba(0,212,170,0.03); border: 1px dashed rgba(0,212,170,0.15); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; color: var(--text-muted); font-size: 13px; margin-bottom: 20px; }
.o2o-img { width: 100%; height: 100%; object-fit: cover; border-radius: var(--radius-sm); }
.o2o-step h4 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.o2o-step p { font-size: 14px; color: var(--text-muted); max-width: 300px; }
.o2o-arrow { display: none; }
.o2o-bottom-msg { text-align: center; font-size: 18px; color: var(--primary-light); font-weight: 600; padding: 20px; background: var(--primary-subtle); border: 1px solid rgba(0, 212, 170, 0.1); border-radius: var(--radius); max-width: 700px; margin: 0 auto; }

/* Преимущества (Features) */
.features-section { padding: 100px 0; border-top: 1px solid rgba(255,255,255,0.04); position: relative; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.feature-card { background: var(--glass-bg); padding: 32px; border-radius: var(--radius); border: 1px solid var(--glass-border); transition: transform 0.2s ease-out, border-color 0.4s ease, box-shadow 0.4s ease; transform-style: preserve-3d; perspective: 800px; will-change: transform; -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); position: relative; overflow: hidden; }
.feature-card::before { content: ''; position: absolute; bottom: 0; left: 24px; right: 24px; height: 2px; background: var(--primary-light); opacity: 0; -webkit-transition: opacity 0.4s ease; transition: opacity 0.4s ease; border-radius: 1px; box-shadow: 0 0 12px var(--primary-glow); }
.feature-card:hover::before { opacity: 1; }
.feature-card:hover { border-color: var(--border-glow); box-shadow: 0 20px 40px rgba(0,0,0,0.5), 0 0 30px rgba(0, 212, 170, 0.06); }
.feature-card .feature-icon { transition: transform 0.3s ease; }
.feature-card:hover .feature-icon { transform: translateZ(20px) scale(1.1); }
.feature-icon { width: 56px; height: 56px; background: var(--primary-subtle); border: 1px solid rgba(0, 212, 170, 0.12); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; margin-bottom: 24px; color: var(--primary-light); }
.feature-icon svg { width: 28px; height: 28px; }
.feature-card h3 { font-size: 20px; margin-bottom: 12px; font-weight: 700; }
.feature-card p { color: var(--text-muted); font-size: 15px; }

/* Секция "Для кого" */
.segments-section { padding: 100px 0; background-color: rgba(0, 212, 170, 0.01); border-top: 1px solid rgba(255,255,255,0.04); position: relative; }
.segments-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.segment-card { background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: var(--radius); padding: 32px; text-align: center; transition: transform 0.2s ease-out, border-color 0.4s ease, box-shadow 0.4s ease; transform-style: preserve-3d; perspective: 600px; will-change: transform; -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); }
.segment-card:hover { border-color: var(--border-glow); box-shadow: 0 20px 40px rgba(0,0,0,0.5), 0 0 30px rgba(0, 212, 170, 0.06); }
.segment-card .segment-icon { margin-bottom: 16px; transition: transform 0.3s ease; color: var(--primary-light); }
.segment-card:hover .segment-icon { transform: translateZ(15px) scale(1.15) rotateY(10deg); }
.segment-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.segment-card p { color: var(--text-muted); font-size: 14px; }

/* Детализация услуг (Setup vs SaaS) */
.integration-details-section { padding: 100px 0; background-color: rgba(0, 212, 170, 0.01); border-top: 1px solid rgba(255,255,255,0.04); }
.details-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.detail-card { background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: var(--radius); padding: 40px; position: relative; overflow: hidden; -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); }
.detail-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px; }
.setup-card::before { background: var(--warning); }
.sub-card::before { background: var(--success); }
.card-head { display: flex; align-items: center; gap: 16px; margin-bottom: 8px; }
.icon-circle { width: 48px; height: 48px; background: rgba(255,255,255,0.05); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 24px; }
.detail-card h3 { font-size: 24px; }
.detail-price { color: var(--text-muted); font-size: 14px; margin-bottom: 24px; padding-bottom: 24px; border-bottom: 1px solid rgba(255,255,255,0.05); }
.detail-list { list-style: none; display: flex; flex-direction: column; gap: 16px; }
.detail-list li { position: relative; padding-left: 32px; font-size: 15px; color: var(--text-main); }
.detail-list li::before { content: ''; position: absolute; left: 0; top: 2px; width: 20px; height: 20px; background-size: contain; background-repeat: no-repeat; }
.setup-card .detail-list li::before { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23dd6b20' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M22 11.08V12a10 10 0 1 1-5.93-9.14'%3E%3C/path%3E%3Cpolyline points='22 4 12 14.01 9 11.01'%3E%3C/polyline%3E%3C/svg%3E"); }
.sub-card .detail-list li::before { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2338a169' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M22 11.08V12a10 10 0 1 1-5.93-9.14'%3E%3C/path%3E%3Cpolyline points='22 4 12 14.01 9 11.01'%3E%3C/polyline%3E%3C/svg%3E"); }

/* Тарифы и Промо-баннер */
.pricing-section { padding: 100px 0; border-top: 1px solid rgba(255,255,255,0.04); position: relative; }
.promo-banner { background: linear-gradient(90deg, var(--primary-subtle) 0%, rgba(0, 212, 170, 0.02) 100%); border: 1px solid rgba(0, 212, 170, 0.15); border-radius: var(--radius); padding: 24px 32px; margin-top: 32px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 24px; }
.promo-content { display: flex; align-items: center; gap: 16px; text-align: left; }
.promo-icon { font-size: 32px; animation: bounce 2s infinite; }
@keyframes bounce { 0%, 20%, 50%, 80%, 100% {transform: translateY(0);} 40% {transform: translateY(-10px);} 60% {transform: translateY(-5px);} }
.promo-text h4 { color: var(--primary-light); font-size: 18px; margin-bottom: 4px; }
.promo-text p { color: var(--text-main); font-size: 15px; margin: 0; }
.promo-text strong { color: #fff; background: rgba(0, 212, 170, 0.15); padding: 2px 6px; border-radius: 4px; }
.promo-tracker { min-width: 200px; flex-grow: 1; max-width: 300px; }
.tracker-info { display: flex; justify-content: space-between; font-size: 14px; margin-bottom: 8px; color: var(--text-muted); }
.tracker-info strong { color: var(--primary-light); font-size: 16px; }
.progress-bar { width: 100%; height: 8px; background: rgba(0,0,0,0.3); border-radius: 4px; overflow: hidden; border: 1px solid rgba(255,255,255,0.05); }
.progress-fill { height: 100%; background: var(--primary-light); width: 0%; transition: width 2s cubic-bezier(0.1, 0.7, 0.1, 1); box-shadow: 0 0 10px var(--primary-glow); }

.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 32px; margin-bottom: 40px; }
.pricing-card { background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: var(--radius); padding: 40px; position: relative; display: flex; flex-direction: column; transition: transform 0.2s ease-out, border-color 0.4s ease, box-shadow 0.4s ease; transform-style: preserve-3d; perspective: 800px; will-change: transform; -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); }
.pricing-card:hover { border-color: rgba(255,255,255,0.1); box-shadow: 0 25px 50px rgba(0,0,0,0.5); }
.pricing-card.highlight { border-color: rgba(0, 212, 170, 0.3); background: linear-gradient(180deg, rgba(16, 20, 28, 0.9) 0%, rgba(0, 212, 170, 0.04) 100%); transform: scale(1.03); box-shadow: 0 20px 40px rgba(0,0,0,0.5), 0 0 40px rgba(0, 212, 170, 0.06); z-index: 2; }
.popular-badge { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--gradient-brand); color: white; padding: 6px 20px; border-radius: 20px; font-size: 13px; font-weight: 800; text-transform: uppercase; letter-spacing: 1px; }
.pricing-card h3 { font-size: 24px; margin-bottom: 8px; }
.pricing-desc { color: var(--text-muted); font-size: 14px; margin-bottom: 8px; min-height: 40px; }
.pricing-trial { color: var(--success); font-size: 13px; font-weight: 600; margin-bottom: 16px; }
.pricing-price { font-size: 48px; font-weight: 800; margin-bottom: 32px; color: var(--text-main); display: flex; align-items: baseline; gap: 4px; }
.pricing-price span { font-size: 16px; font-weight: 500; color: var(--text-muted); }
.pricing-features { list-style: none; margin-bottom: 40px; flex-grow: 1; }
.pricing-features li { padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,0.03); font-size: 15px; position: relative; padding-left: 32px; color: var(--text-main); }
.pricing-features li::before { content: ''; position: absolute; left: 0; top: 16px; width: 18px; height: 18px; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2300D4AA' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E"); background-size: contain; background-repeat: no-repeat; }
.pricing-features li.disabled { color: var(--text-muted); }
.pricing-features li.disabled::before { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%234a5568' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cline x1='18' y1='6' x2='6' y2='18'%3E%3C/line%3E%3Cline x1='6' y1='6' x2='18' y2='18'%3E%3C/line%3E%3C/svg%3E"); }

.addons-section { background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: var(--radius); padding: 32px; text-align: center; -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); }
.addons-section h4 { margin-bottom: 24px; font-size: 18px; color: var(--text-muted); }
.addons-grid { display: flex; justify-content: center; gap: 40px; flex-wrap: wrap; }
.addon-item { display: flex; align-items: center; gap: 12px; font-size: 16px; background: rgba(0,0,0,0.2); padding: 12px 24px; border-radius: 8px; border: 1px solid rgba(255,255,255,0.05); }
.addon-item strong { color: var(--primary-light); background: var(--primary-subtle); padding: 4px 12px; border-radius: 6px; font-size: 15px; }

/* FAQ секция */
.faq-section { padding: 100px 0; border-top: 1px solid rgba(255,255,255,0.04); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border: 1px solid var(--glass-border); border-radius: var(--radius); margin-bottom: 12px; overflow: hidden; background: var(--glass-bg); transition: var(--transition); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); }
.faq-item:hover { border-color: rgba(255,255,255,0.15); }
.faq-question { width: 100%; padding: 20px 24px; background: none; border: none; color: var(--text-main); font-size: 16px; font-weight: 600; text-align: left; cursor: pointer; display: flex; justify-content: space-between; align-items: center; font-family: var(--font-main); }
.faq-question::after { content: '+'; font-size: 22px; color: var(--primary-light); transition: var(--transition); flex-shrink: 0; margin-left: 16px; }
.faq-item.active .faq-question::after { content: '\2212'; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.35s ease; }
.faq-answer p { padding: 0 24px 20px; color: var(--text-muted); font-size: 15px; line-height: 1.7; }
.faq-item.active .faq-answer { max-height: 300px; }

/* Шаги (Image + Grid) */
.steps-section { padding: 100px 0; background-color: rgba(0, 212, 170, 0.01); border-top: 1px solid rgba(255,255,255,0.04); }
.steps-wrapper { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; margin-top: 40px; }
.steps-grid { display: flex; flex-direction: column; gap: 24px; }
.step-card { background: var(--glass-bg); padding: 32px; border-radius: var(--radius); border: 1px solid var(--glass-border); position: relative; transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease; transform-style: preserve-3d; -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); }
.step-card:hover { border-color: rgba(255,255,255,0.2); transform: translateX(10px) rotateY(-3deg); box-shadow: 0 15px 30px rgba(0,0,0,0.3); }
.step-card .step-number { transition: transform 0.3s ease; }
.step-card:hover .step-number { transform: translateZ(10px) scale(1.1); }
.step-number { width: 40px; height: 40px; background: var(--gradient-brand); color: white; display: flex; align-items: center; justify-content: center; border-radius: 50%; font-size: 18px; font-weight: bold; margin-bottom: 20px; box-shadow: 0 4px 10px rgba(49, 130, 206, 0.3); }
.step-card h4 { font-size: 20px; margin-bottom: 12px; }
.step-card p { color: var(--text-muted); font-size: 15px; }
.steps-image img { border-radius: 16px; border: 1px solid rgba(255,255,255,0.1); box-shadow: 0 20px 40px rgba(0,0,0,0.4); }

/* ===== АДАПТИВ — страница ===== */

/* 1024px — ноутбук */
@media (max-width: 1024px) {
    .hero { padding: 130px 0 60px; }
    .hero-grid { gap: 40px; }
    .hero h1 { font-size: clamp(36px, 5vw, 56px); }
    .device-phone { width: 240px; }
    .device-browser { width: 480px; }
    .integrations-logos { grid-template-columns: repeat(4, 1fr); gap: 12px; }
    .showcase-grid { gap: 24px; }
    .showcase-section .device-phone { width: 240px; }
    .showcase-section .device-browser { width: 440px; }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .pricing-grid { gap: 24px; }
}

/* 992px — планшет */
@media (max-width: 992px) {
    .comparison-wrapper { flex-direction: column; text-align: center; }
    .comparison-visual { width: 100%; }
    .details-grid { grid-template-columns: 1fr; }
    .steps-wrapper { grid-template-columns: 1fr; }
    .pricing-card.highlight { -webkit-transform: scale(1); transform: scale(1); }
    .segments-grid { grid-template-columns: repeat(2, 1fr); }
    .o2o-steps { grid-template-columns: 1fr 1fr; }
    .o2o-arrow { -webkit-transform: rotate(90deg); transform: rotate(90deg); padding: 8px 0; }
    .comparison-section, .features-section, .segments-section,
    .integration-details-section, .pricing-section, .faq-section,
    .steps-section, .o2o-section { padding: 64px 0; }
}

/* 768px — мобилка ландшафт / малый планшет */
@media (max-width: 768px) {
    .hero { padding: 100px 0 48px; }
    .hero-grid { grid-template-columns: 1fr; gap: 40px; text-align: center; }
    .hero-content { margin-bottom: 0; }
    .hero h1 { font-size: clamp(32px, 8vw, 48px); letter-spacing: -1px; }
    .hero-subtitle { font-size: 16px; margin-bottom: 32px; margin-left: auto; margin-right: auto; }
    .hero-actions { flex-direction: column; align-items: center; }
    .hero-actions a { width: 100%; max-width: 320px; }
    .hero-mockup { min-height: auto; }
    .hero-image-placeholder { flex-direction: column; align-items: center; gap: 16px; }
    .device-phone { width: 220px; -webkit-transform: none; transform: none; }
    .device-browser { display: none; }
    .integrations-strip { padding: 32px 0; }
    .integrations-logos { grid-template-columns: repeat(3, 1fr); gap: 10px; }
    .integration-card { padding: 16px 8px; }
    .integration-name { font-size: 13px; }
    .showcase-section { padding: 48px 0; }
    .showcase-grid { flex-direction: column; align-items: center; }
    .showcase-section .device-phone { width: 220px; transform: none; }
    .showcase-section .device-browser { width: 100%; max-width: 500px; transform: none; }
    .o2o-infographic svg { width: 120px; height: 90px; }
    .features-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
    .feature-card { padding: 24px; }
    .segments-grid { grid-template-columns: 1fr 1fr; gap: 16px; }
    .segment-card { padding: 24px; }
    .promo-banner { flex-direction: column; text-align: center; padding: 20px; }
    .promo-tracker { width: 100%; max-width: 100%; }
    .pricing-grid { grid-template-columns: 1fr; gap: 20px; }
    .pricing-card { padding: 28px; }
    .addons-grid { flex-direction: column; gap: 12px; align-items: stretch; }
    .comp-list { text-align: left; }
    .comparison-visual { padding: 24px; gap: 12px; }
    .comp-box { padding: 20px; min-width: 120px; }
    .detail-card { padding: 24px; }
    .faq-question { padding: 16px; font-size: 15px; }
    .faq-answer p { padding: 0 16px 16px; font-size: 14px; }
    .steps-wrapper { gap: 32px; }
    .step-card { padding: 24px; }
    .step-card h4 { font-size: 18px; }
    .o2o-step { padding: 16px; }
    .pricing-price { font-size: clamp(36px, 8vw, 48px); }
}

/* 480px — мобилка портрет */
@media (max-width: 480px) {
    .hero { padding: 88px 0 32px; }
    .hero h1 { font-size: clamp(26px, 8vw, 36px); letter-spacing: -0.5px; }
    .hero-subtitle { font-size: 14px; }
    .device-phone { width: 200px; border-radius: 24px; }
    .features-grid { grid-template-columns: 1fr; }
    .segments-grid { grid-template-columns: 1fr; }
    .comparison-visual { flex-direction: column; }
    .comp-link svg { -webkit-transform: rotate(90deg); transform: rotate(90deg); }
    .our-box { -webkit-transform: scale(1); transform: scale(1); }
    .integrations-logos { grid-template-columns: repeat(2, 1fr); gap: 8px; }
    .integration-card { padding: 14px 6px; gap: 6px; }
    .integration-name { font-size: 12px; }
    .integration-tag { font-size: 10px; }
    .addon-item { flex-direction: column; text-align: center; gap: 8px; padding: 16px; }
    .o2o-steps { grid-template-columns: 1fr; }
    .o2o-step { max-width: 100%; }
    .steps-image { display: none; }
    .comparison-section, .features-section, .segments-section,
    .integration-details-section, .pricing-section, .faq-section,
    .steps-section, .o2o-section { padding: 48px 0; }
}

/* 360px — малые экраны */
@media (max-width: 360px) {
    .hero h1 { font-size: 20px; }
    .badge { font-size: 12px; padding: 4px 10px; }
    .pricing-price { font-size: 32px; }
    .feature-card { padding: 20px; }
    .segment-card { padding: 20px; }
}