/* ==========================================================================
   1. ОБЩИЕ НАСТРОЙКИ И ПЕРЕМЕННЫЕ (ПАЛИТРА DEEP SPACE)
   ========================================================================== */
:root {
    --bg-charcoal: #010205;   /* Глубокий монохромный чёрный для шапки/подвала */
    --bg-main: #03050a;       /* Космический ультра-тёмный фон сайта */
    --accent-cyan: #06b6d4;   /* Неоновый циан для чата */
    --accent-blue: #2f80ed;   /* Глубокий синий для акцентов */
    --text-light: #f5f5f7;    /* Бело-серебряный текст */
    --text-muted: #86868b;    /* Серый матовый текст */
    --transition-smooth: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    
    /* Единая формула Liquid Glass для плашек сайта (кроме чата) */
    --apple-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.01) 100%);
    --apple-border: 1px solid rgba(255, 255, 255, 0.12);
    --apple-blur: blur(30px) saturate(160%);
    --apple-shadow: 0 4px 30px rgba(0, 0, 0, 0.2), 0 20px 40px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--text-light);
    background-color: var(--bg-main);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, .logo, .step-num, .chat-title, .route-title {
    font-family: 'Orbitron', sans-serif;
    letter-spacing: 1px;
}

body::before {
    content: ''; 
    position: fixed; 
    top: 0; left: 0; 
    width: 100%; height: 100%;
    background-image: radial-gradient(rgba(255, 255, 255, 0.01) 1px, transparent 0);
    background-size: 40px 40px; 
    z-index: -1; 
    pointer-events: none;
}

/* ==========================================================================
   2. АНИМАЦИИ
   ========================================================================== */
@keyframes slideDown {
    from { transform: translateY(-100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes fadeInUp {
    from { transform: translateY(30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@keyframes scaleReveal {
    from { transform: scale(0.96); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

@keyframes pulseCyan {
    0% { box-shadow: 0 0 0 0 rgba(6, 182, 212, 0.4); }
    70% { box-shadow: 0 0 20px 10px rgba(6, 182, 212, 0); }
    100% { box-shadow: 0 0 0 0 rgba(6, 182, 212, 0); }
}

@keyframes pulseGreen {
    0% { opacity: 0.4; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.1); }
    100% { opacity: 0.4; transform: scale(1); }
}

/* ==========================================================================
   3. ШАПКА САЙТА (HEADER) И ИСПРАВЛЕННЫЙ ОДНОРЯДНЫЙ СТИЛЬ МЕНЮ
   ========================================================================== */
header {
    position: fixed; 
    top: 0; left: 0; 
    width: 100%;
    background: rgba(1, 2, 5, 0.75);
    backdrop-filter: var(--apple-blur);
    -webkit-backdrop-filter: var(--apple-blur);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    z-index: 1000;
    animation: slideDown 0.8s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}

.nav-container {
    max-width: 1400px; margin: 0 auto;
    display: flex; justify-content: space-between; align-items: center; 
    padding: 22px 20px; position: relative;
}

.logo { 
    margin-right: auto; font-size: 24px; font-weight: bold; color: var(--text-light); 
    text-decoration: none; transition: var(--transition-smooth);
    flex-shrink: 0;
}
.logo span { color: var(--accent-cyan); }

.nav-menu { 
    display: flex; 
    list-style: none; 
    gap: 15px; /* Уменьшили шаг между пунктами для предотвращения переноса строк */
    margin: 0 auto;
    position: absolute; 
    left: 50%; 
    transform: translateX(-50%);
    white-space: nowrap; /* Запрещаем тексту разрываться внутри меню */
}

/* Выравнивание иконок строго по центру текста */
.nav-menu a { 
    display: flex;
    align-items: center;
    gap: 6px; 
    text-decoration: none; 
    color: var(--text-muted); 
    font-size: 13px; /* Оптимальный размер для размещения в строку */
    text-transform: uppercase; 
    font-weight: 700; 
    transition: var(--transition-smooth); 
    padding: 6px 10px; /* Скорректировали отступы для компактности */
    border-radius: 8px;
}
.nav-menu a:hover { color: var(--text-light); }

/* Параметры векторных иконок */
.nav-icon {
    width: 16px;
    height: 16px;
    stroke: currentColor; 
    flex-shrink: 0;
}

/* ==========================================================================
   4. ГЛАВНЫЙ БАННЕР (HERO SECTION)
   ========================================================================== */
.hero {
    position: relative;
    padding: 260px 20px 180px;
    text-align: center;
    max-width: 100%;
    border: var(--apple-border);
    overflow: hidden;
    border-radius: 40px; 
    margin: 90px 15px 0 15px; 
    box-shadow: var(--apple-shadow);
    animation: scaleReveal 1.2s cubic-bezier(0.25, 1, 0.5, 1) forwards;
}

.hero-video {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    object-fit: cover; object-position: top center; z-index: 0;
}

.hero::after {
    content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to bottom, rgba(3, 5, 10, 0.2), rgba(3, 5, 10, 0.8));
    z-index: 1; pointer-events: none;
}

.hero-glass-card { 
    position: relative; 
    z-index: 3; 
    max-width: 850px; 
    margin: 0 auto; 
    padding: 60px 50px; 
    border-radius: 24px; 
    background: var(--apple-glass);
    backdrop-filter: var(--apple-blur); 
    -webkit-backdrop-filter: var(--apple-blur);
    border: var(--apple-border); 
    box-shadow: var(--apple-shadow);
    animation: fadeInUp 1s cubic-bezier(0.25, 1, 0.5, 1) 0.3s forwards;
    opacity: 0; 
}

.hero h1 { font-size: 54px; margin-bottom: 20px; font-weight: 800; color: #ffffff; }
.hero p { font-size: 17px; max-width: 720px; margin: 0 auto 40px; color: #e5e7eb; font-family: 'Space Grotesk', sans-serif; }

.hero .btn {
    display: inline-block; background: transparent; color: #ffffff; padding: 16px 45px; border-radius: 35px; text-decoration: none;
    font-weight: 600; border: 1px solid rgba(255,255,255,0.25); background: rgba(255,255,255,0.02); backdrop-filter: blur(10px); transition: var(--transition-smooth); text-transform: uppercase; letter-spacing: 1px;
}
.hero .btn:hover { background: #ffffff; color: #000000; box-shadow: 0 0 25px rgba(255,255,255,0.4); transform: translateY(-2px); }

.smoke-container { position: absolute; top: 0; left: 0; width: 100%; height: 100%; pointer-events: none; z-index: 2; }
.smoke-point { position: absolute; width: 100px; height: 50px; }
.puff { position: absolute; width: 15px; height: 15px; background: rgba(255,255,255,0.1); border-radius: 50%; filter: blur(8px); animation: smokeMove 2s infinite; opacity: 0; }
@keyframes smokeMove { 0% { transform: scale(1); opacity: 0.3; } 100% { transform: scale(4) translateX(-60px); opacity: 0; } }
.truck-smoke { top: 62%; left: 16%; }
.train-smoke { top: 82%; left: 65%; }
.plane-smoke { top: 22%; left: 80%; }

/* ==========================================================================
   5. СЕКЦИИ И КАРТОЧКИ (LIQUID GLASS ВНЕДРЕНИЕ)
   ========================================================================== */
section { padding: 120px 20px 60px; max-width: 1300px; margin: 0 auto; }
.section-title { text-align: center; font-size: 34px; color: var(--text-light); margin-bottom: 50px; text-transform: uppercase; }
.section-title span { color: #ffffff; text-decoration: underline; text-decoration-color: var(--accent-cyan); text-underline-offset: 8px; }

.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; }

/* Карточка преимуществ — Liquid Glass */
.card { 
    background: var(--apple-glass); 
    backdrop-filter: var(--apple-blur);
    -webkit-backdrop-filter: var(--apple-blur);
    border: var(--apple-border); 
    border-radius: 16px; 
    overflow: hidden; 
    box-shadow: var(--apple-shadow);
    transition: var(--transition-smooth); 
}

.card-img { 
    width: 100%; height: 200px; object-fit: cover; 
    filter: grayscale(100%) brightness(50%); 
    transition: var(--transition-smooth);
}

.card-content { padding: 30px; }
.card h3 { 
    display: flex;
    align-items: center;
    gap: 10px;
    color: #ffffff; 
    margin-bottom: 15px; 
    font-size: 18px; 
    text-transform: uppercase; 
}

.content-icon {
    width: 20px;
    height: 20px;
    stroke: var(--accent-cyan);
    flex-shrink: 0;
}

.card p { color: var(--text-muted); font-size: 14.5px; }

.card:hover { 
    border-color: rgba(255, 255, 255, 0.25); 
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5); 
    transform: translateY(-5px); 
    background: rgba(255, 255, 255, 0.04);
}
.card:hover .card-img { filter: grayscale(30%) brightness(75%); transform: scale(1.02); }

/* РАЗВЕТВЛЕННЫЙ АЛГОРИТМ — БЛОКИ LIQUID GLASS */
.logistics-routes { display: flex; flex-direction: column; gap: 50px; margin-top: 30px; }

.route-block { 
    background: var(--apple-glass);
    backdrop-filter: var(--apple-blur);
    -webkit-backdrop-filter: var(--apple-blur);
    border: var(--apple-border);
    box-shadow: var(--apple-shadow);
    padding: 45px 35px; border-radius: 24px; 
    transition: var(--transition-smooth);
}
.route-block.wed-branch { border-top: 3px solid var(--accent-cyan); }
.route-block.cargo-branch { border-top: 3px solid var(--accent-blue); }

.route-title { font-size: 20px; margin-bottom: 35px; text-transform: uppercase; display: flex; align-items: center; gap: 15px; flex-wrap: wrap; color: #ffffff; }
.route-title span { font-size: 13px; padding: 5px 14px; border-radius: 20px; font-family: sans-serif; background: rgba(255,255,255,0.06); color: var(--text-light); }

.route-block .steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 25px; }

/* Интерактивные шаги — Liquid Glass */
.route-block .step { 
    background: rgba(255, 255, 255, 0.01); 
    border: 1px solid rgba(255, 255, 255, 0.06); 
    padding: 30px 22px; border-radius: 14px; transition: var(--transition-smooth);
}
.step-num { font-size: 28px; font-weight: bold; margin-bottom: 12px; opacity: 0.2; transition: var(--transition-smooth); color: #ffffff; }

.step h3 { font-size: 15px; margin-bottom: 10px; text-transform: uppercase; color: #ffffff; }
.step p { color: var(--text-muted); font-size: 13.5px; }

.route-block .step:hover { 
    border-color: rgba(255,255,255,0.2); 
    background: rgba(255, 255, 255, 0.03); 
    transform: translateY(-2px); 
    box-shadow: 0 15px 30px rgba(0,0,0,0.3);
}
.route-block .step:hover .step-num { opacity: 0.6; }

/* ==========================================================================
   6. ОТЗЫВЫ И КОНТАКТЫ (LIQUID GLASS)
   ========================================================================== */
.review-card { 
    background: var(--apple-glass);
    backdrop-filter: var(--apple-blur);
    -webkit-backdrop-filter: var(--apple-blur);
    border: var(--apple-border);
    box-shadow: var(--apple-shadow);
    padding: 35px 30px; border-radius: 16px; position: relative; transition: var(--transition-smooth); 
}
.review-card::before { content: "“"; position: absolute; top: 10px; left: 20px; font-size: 70px; color: #ffffff; opacity: 0.03; }
.review-card p { color: #e2e8f0; font-style: italic; font-size: 14.5px; margin-bottom: 20px; position: relative; z-index: 2; }
.review-meta { font-family: 'Orbitron', sans-serif; color: var(--text-muted); font-size: 12px; }
.review-card:hover { border-color: rgba(255,255,255,0.25); transform: translateY(-3px); }

.contacts-container { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 40px; }
.contact-info { 
    background: var(--apple-glass);
    backdrop-filter: var(--apple-blur);
    -webkit-backdrop-filter: var(--apple-blur);
    border: var(--apple-border);
    box-shadow: var(--apple-shadow);
    padding: 30px; border-radius: 16px; transition: var(--transition-smooth); 
}
.contact-info h3 { margin-bottom: 15px; font-size: 16px; text-transform: uppercase; color: #ffffff; }
.contact-info p { color: var(--text-muted); font-size: 14.5px; }
.contact-info:hover { border-color: rgba(255,255,255,0.25); transform: translateX(4px); }

/* ==========================================================================
   7. ИНТЕРАКТИВНЫЙ АССИСТЕНТ (НЕОНОВЫЙ ОРИГИНАЛ ИЗ IMAGE_35CE77.PNG)
   ========================================================================== */
.feedback-section { 
    background: var(--bg-main); padding: 100px 20px 140px; border-top: 1px solid rgba(6, 182, 212, 0.05); 
}

.chat-container { 
    width: 100%; 
    max-width: 850px; 
    background: #020204; 
    border: 1px solid rgba(6, 182, 212, 0.25); 
    border-radius: 20px; 
    box-shadow: 0 40px 90px rgba(0, 0, 0, 0.6); 
    display: flex; 
    flex-direction: column; 
    overflow: hidden; 
    margin: 0 auto; 
}

.chat-header-status {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 25px 35px 20px;
    background: #020204;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: #10b981; 
    border-radius: 50%;
    box-shadow: 0 0 10px #10b981;
    animation: pulseGreen 2s infinite;
}

.chat-title { 
    color: var(--accent-cyan); 
    font-size: 15px; 
    text-transform: uppercase; 
    letter-spacing: 2px; 
    font-weight: bold; 
    text-shadow: 0 0 10px rgba(6, 182, 212, 0.3); 
}

.chat-messages { 
    padding: 35px; 
    height: 480px; 
    overflow-y: auto; 
    display: flex; 
    flex-direction: column; 
    gap: 20px; 
    background: #020204; 
}
.chat-messages::-webkit-scrollbar { width: 4px; }
.chat-messages::-webkit-scrollbar-thumb { background: rgba(6, 182, 212, 0.25); border-radius: 4px; }

#buttonContainer { 
    padding: 20px 35px 35px; 
    display: flex; 
    justify-content: center; 
    gap: 24px; 
    background: #020204; 
    flex-wrap: wrap; 
}

#buttonContainer button {
    padding: 16px 45px; 
    font-size: 16px; 
    font-weight: bold; 
    font-family: 'Orbitron', sans-serif;
    border-radius: 35px; 
    border: 2px solid var(--accent-cyan); 
    background: #060911; 
    color: var(--accent-cyan);
    cursor: pointer; 
    transition: var(--transition-smooth); 
    text-transform: uppercase; 
    letter-spacing: 1px; 
    animation: pulseCyan 2s infinite;
}

#buttonContainer button:hover { 
    background: var(--accent-cyan); 
    color: #020204; 
    box-shadow: 0 0 25px var(--accent-cyan); 
    transform: scale(1.04) translateY(-2px); 
    animation: none;
}

.msg { 
    padding: 16px 24px; 
    border-radius: 16px; 
    max-width: 75%; 
    word-wrap: break-word; 
    font-size: 15px; 
    animation: fadeInUp 0.4s cubic-bezier(0.25, 1, 0.5, 1) forwards; 
}

.msg.ai { 
    background: #111215; 
    align-self: flex-start; 
    border: 1px solid rgba(255, 255, 255, 0.05); 
    color: #ffffff; 
    border-top-left-radius: 4px; 
}

.msg.user { 
    background: rgba(6, 182, 212, 0.08); 
    color: var(--accent-cyan); 
    align-self: flex-end; 
    border: 1px solid rgba(6, 182, 212, 0.4); 
    border-top-right-radius: 4px; 
}

.chat-input-wrapper {
    padding: 15px 35px 35px;
    background: #020204;
}

.chat-input { 
    display: flex; 
    padding: 6px 10px 6px 24px; 
    background: #060911; 
    border: 2px solid rgba(6, 182, 212, 0.35); 
    border-radius: 40px; 
    align-items: center; 
    transition: var(--transition-smooth);
}

.chat-input:focus-within {
    border-color: var(--accent-cyan);
    box-shadow: 0 0 20px rgba(6, 182, 212, 0.25);
}

.chat-input input { 
    flex: 1; 
    padding: 12px 0;
    background: transparent; 
    border: none; 
    outline: none; 
    font-size: 15px; 
    color: var(--text-light); 
}

.chat-input button { 
    background: rgba(6, 182, 212, 0.1); 
    border: 1px solid rgba(6, 182, 212, 0.2); 
    color: var(--accent-cyan); 
    width: 44px;
    height: 44px;
    border-radius: 50%;
    cursor: pointer; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    transition: var(--transition-smooth); 
}
.chat-input button:hover { 
    background: var(--accent-cyan);
    color: #020204; 
    transform: scale(1.05); 
}
.chat-input button svg { width: 20px; height: 20px; }

/* ==========================================================================
   9. СТИЛИ ДЛЯ АНИМАЦИИ ПРИ СКРОЛЛЕ
   ========================================================================== */
.animate-on-scroll {
    opacity: 0; transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
    will-change: opacity, transform;
}

.animate-left {
    opacity: 0; transform: translateX(-40px);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.animate-right {
    opacity: 0; transform: translateX(40px);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.animate-on-scroll.animated, .animate-left.animated, .animate-right.animated { opacity: 1; transform: translateY(0) translateX(0); }

.grid-3 .card:nth-child(1) { transition-delay: 0.1s; }
.grid-3 .card:nth-child(2) { transition-delay: 0.2s; }
.grid-3 .card:nth-child(3) { transition-delay: 0.3s; }

.contacts-container .contact-info:nth-child(1) { transition-delay: 0.1s; }
.contacts-container .contact-info:nth-child(2) { transition-delay: 0.2s; }
.contacts-container .contact-info:nth-child(3) { transition-delay: 0.3s; }

/* Адаптивность и мобильное меню */
@media (max-width: 900px) {
    .nav-container { display: flex; flex-direction: column; gap: 15px; padding: 15px; }
    .nav-menu { position: static; transform: none; flex-wrap: wrap; justify-content: center; gap: 8px; }
    .hero h1 { font-size: 34px; }
    .hero { padding: 200px 15px 140px; margin: 90px 10px 0 10px; border-radius: 24px; }
    .route-block { padding: 30px 15px; border-radius: 16px; }
    .route-block .steps { grid-template-columns: 1fr; }
    .chat-container { border-radius: 20px; margin: 0 10px; }
    .chat-messages { padding: 20px; }
    .chat-input-wrapper { padding: 10px 20px 20px 20px; }
}

footer { background: var(--bg-charcoal); color: rgba(255,255,255,0.2); text-align: center; padding: 35px 20px; font-size: 12px; border-top: 1px solid rgba(255,255,255,0.01); letter-spacing: 1px; }