/* ==========================================================================
   FACTORY PAGE - ОЧИЩЕННЫЙ CSS (Только используемые классы)
   ========================================================================== */
   :root {
    --accent-yellow: #f5b907;
    /* Тексты для светлых секций */
    --text-dark: #121212;
    --text-muted-dark: #5a606b;
    /* Тексты для темных секций (Hero, CTA, Карточки услуг) */
    --text-light: #ffffff;
    --text-muted-light: #a0a5b0;
    
    --bg-page: #ffffff;    /* Светлый фон основных секций */
    --bg-card: #f9f9f9;    /* Фон для светлых карточек */
    --border: rgba(0, 0, 0, 0.1);
    --border-hover: rgba(245, 185, 7, 0.6);
    --shadow-glow: 0 8px 32px rgba(0, 0, 0, 0.06);
}
:root {
    /* Точные цвета со скриншота */
    --base-dark: #13171e; /* Глубокий темный фон */
    --accent-yellow: #f5b907; /* Насыщенный желтый акцент */
    --text-light: #ffffff;
    --text-muted: #a0a5b0;
}
html, body {
    max-width: 100%;
    overflow-x: hidden;
}

/* --- HERO (Compact) --- */
.factory-compact-hero {
    background-image:linear-gradient(90deg, rgba(15,18,25,0.9) 0%, rgba(15,18,25,0.6) 40%, rgba(15,18,25,0.2) 100%), url('../img/factory.jpeg'); 
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: var(--text-light);
    padding: 132px 4% 48px;
}
.factory-hero-shell {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(0, 0.92fr) minmax(360px, 0.78fr);
    gap: 56px;
    align-items: center;
    padding: 50px 20px;
}
.factory-hero-copy { max-width: 720px; }
.factory-page-title { font-size: clamp(2.1rem, 4.2vw, 4.7rem); line-height: 1.03; font-weight: 800; text-transform: uppercase; margin: 0 0 22px; color: #ffffff; }
.factory-page-title span { display: block; }
.factory-hero-text { color: #d1d5db; font-size: 1.08rem; line-height: 1.65; max-width: 640px; margin: 0 0 30px; }
.factory-hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }

/* --- ABOUT SECTION --- */
.factory-about { background-color: #f0f2f5; }
.factory-image-stack { min-height: 560px; }
.factory-main-image-wrap { width: 82%; max-width: 520px; aspect-ratio: 4 / 5; position: relative; }
.factory-small-img { position: absolute; right: 3%; bottom: 22px; width: 42%; max-width: 260px; aspect-ratio: 1 / 1; object-fit: cover; border-radius: 4px; border: 8px solid #f0f2f5; z-index: 4; box-shadow: 0 18px 45px rgba(0, 0, 0, 0.18); }
.factory-years-badge { position: absolute; left: 8%; bottom: 70px; z-index: 5; background-color: var(--accent-yellow); color: #000000; border-radius: 6px; padding: 18px 22px; display: flex; align-items: center; gap: 12px; box-shadow: 0 18px 45px rgba(245, 185, 7, 0.26); }
.factory-years-badge strong { font-size: 2.2rem; line-height: 1; font-weight: 800; }
.factory-years-badge span { font-size: 0.82rem; line-height: 1.2; font-weight: 800; text-transform: uppercase; max-width: 80px; }
.factory-specs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px 24px; margin: 10px 0 34px; }
.factory-spec { display: flex; align-items: flex-start; gap: 14px; }

/* --- MATERIALS SECTION --- */
.materials-section { background-color: #ffffff; padding: 100px 4%; color: var(--base-dark); }
.materials-container { max-width: 1400px; margin: 0 auto; }
.materials-header { text-align: center; display: flex; flex-direction: column; align-items: center; margin-bottom: 60px; }
.materials-title { font-size: 2.8rem; font-weight: 800; line-height: 1.2; margin: 15px 0 0 0; text-transform: uppercase; color: var(--base-dark); }
.materials-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 45px 30px; }
.material-card { display: flex; flex-direction: column; align-items: flex-start; }
.material-img-wrap { width: 100%; aspect-ratio: 3 / 2; overflow: hidden; border-radius: 4px; margin-bottom: 20px; }
.material-img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1); }
.material-card:hover .material-img { transform: scale(1.04); }
.material-card-title { font-size: 1.25rem; font-weight: 700; margin: 0 0 8px 0; color: var(--base-dark); letter-spacing: -0.3px; }
.material-card-desc { font-size: 0.9rem; line-height: 1.45; color: #6b7280; margin: 0 0 22px 0; min-height: 42px; }
.material-btn { background-color: var(--base-dark); color: #ffffff !important; padding: 10px 24px; font-size: 0.85rem; font-weight: 700; border-radius: 4px; border: 1px solid var(--base-dark); text-decoration: none; display: inline-block; transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1); }
.material-btn:hover { background-color: var(--accent-yellow); border-color: var(--accent-yellow); color: #000000 !important; transform: translateY(-2px); }

/* --- PRODUCTION CYCLE --- */
.production-section { background-color: var(--base-dark); padding: 100px 4%; color: #ffffff; position: relative; overflow: hidden; }
.production-container { max-width: 1400px; margin: 0 auto; }
.production-header { text-align: left; display: flex; flex-direction: column; align-items: flex-start; margin-bottom: 80px; }
.production-title { font-size: 2.8rem; font-weight: 800; line-height: 1.2; margin: 10px 0 0 0; text-transform: uppercase; color: #ffffff; }
.production-line-container { position: relative; display: flex; justify-content: space-between; align-items: flex-start; gap: 30px; margin-top: 40px; }
.manufacturing-line { position: absolute; top: 30px; left: 40px; right: 40px; height: 2px; background: linear-gradient(90deg, var(--accent-yellow) 40%, rgba(255, 255, 255, 0.1) 100%); z-index: 1; }
.production-step { position: relative; z-index: 2; flex: 1; display: flex; flex-direction: column; align-items: center; text-align: center; }
.step-node-wrap { margin-bottom: 25px; }
.step-node { width: 60px; height: 60px; background-color: #1a1f29; border: 2px solid rgba(255, 255, 255, 0.15); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; font-weight: 800; color: #ffffff; transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1); box-shadow: 0 0 0 6px var(--base-dark); }
.production-step:hover .step-node { border-color: var(--accent-yellow); color: var(--accent-yellow); background-color: var(--base-dark); box-shadow: 0 0 15px rgba(245, 185, 7, 0.4), 0 0 0 6px var(--base-dark); transform: scale(1.05); }
.step-info-card { padding: 10px; }
.step-card-title { font-size: 1.25rem; font-weight: 700; margin: 0 0 12px 0; color: #ffffff; letter-spacing: 0.3px; transition: color 0.3s; }
.production-step:hover .step-card-title { color: var(--accent-yellow); }
.step-card-desc { font-size: 0.9rem; line-height: 1.55; color: var(--text-muted); margin: 0; }

/* --- MINI CTA & FOOTER --- */
.factory-mini-cta { background-image: linear-gradient(90deg, rgba(19, 23, 30, 0.95) 0%, rgba(19, 23, 30, 0.75) 100%), url('../img/factory-banner.jpg'), url('../img/banner-fone.jpg'); }
.site-footer { background-color: #0a0c0f; color: var(--text-light);  border-top: 1px solid rgba(255, 255, 255, 0.06); }
.footer-bottom {    color: var(--text-muted); text-align: center; font-size: 0.9rem; }

/* --- UTILS --- */
.reveal-on-scroll { opacity: 0; transform: translateY(24px); transition: opacity 0.65s ease, transform 0.65s ease; }
.reveal-on-scroll.visible { opacity: 1; transform: translateY(0); }
.mobile-menu { right: 0; transform: translateX(100%); transition: transform 0.4s cubic-bezier(0.1, 0.9, 0.2, 1); }
.mobile-menu.active { right: 0; transform: translateX(0); }

/* --- RESPONSIVE --- */
@media (max-width: 992px) {
    .factory-hero-shell { grid-template-columns: 1fr; }
    .production-title { font-size: 2.2rem; }
    .production-line-container { flex-direction: column; gap: 40px; padding-left: 20px; }
    .manufacturing-line { top: 30px; bottom: 30px; left: 50px; right: auto; width: 2px; height: auto; background: linear-gradient(180deg, var(--accent-yellow) 50%, rgba(255, 255, 255, 0.1) 100%); }
    .production-step { flex-direction: row; align-items: flex-start; text-align: left; gap: 25px; width: 100%; }
    .step-node-wrap { margin-bottom: 0; }
    .step-node { box-shadow: 0 0 0 8px var(--base-dark); }
}

@media (max-width: 1200px) {
    .materials-grid { grid-template-columns: repeat(2, 1fr); gap: 35px 25px; }
}

@media (max-width: 600px) {
    .materials-grid { grid-template-columns: 1fr; gap: 40px; }
    .materials-title, .production-title { font-size: 1.8rem; }
    .materials-section { padding: 60px 4%; }
    .production-section { padding: 60px 4%; }
}

/* ── СЕКЦИЯ СТА (ОСТАЛАСЬ ТЕМНОЙ) ── */
.service-cta {
    background-image: linear-gradient(to right, rgba(11, 13, 17, 0.95) 30%, rgba(11, 13, 17, 0.6)), url('../img/zavcta.jpg');
    background-size: cover;
    background-position: center;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 100px 6%;
    position: relative;
}

.cta-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
    position: relative;
    z-index: 2;
}

.cta-text h2 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-light);
    text-transform: uppercase;
    line-height: 1.2;
    margin-bottom: 15px;
}

.cta-text p {
    color: var(--text-muted-light);
    font-size: 1.1rem;
    max-width: 600px;
}

.cta-btn {
    background-color: var(--accent-yellow);
    color: #000000;
    padding: 18px 40px;
    border-radius: 0px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(245, 185, 7, 0.2);
    white-space: nowrap;
}

.cta-btn:hover {
    background-color: #e0a800;
    transform: translateY(-2px);
}

/* АДАПТИВ */
@media (max-width: 768px) {
    .service-hero h1 { font-size: 2.2rem; }
    .cta-inner { flex-direction: column; text-align: center; }
    .services-grid { grid-template-columns: 1fr; }
}

@media (max-width: 992px) {
    .process-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 576px) {
    .process-grid { grid-template-columns: 1fr; }
}

/* --- КНОПКА "НАВЕРХ" --- */
.scroll-top-btn {
    position: fixed;
    bottom: 40px;
    right: 30px;
    width: 48px;
    height: 48px;
    background-color: #13171e; /* Темный фон в стиле сайта */
    color: var(--accent-yellow); /* Желтый акцент */
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    z-index: 999;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    border-radius: 0px; /* Строгие углы без скруглений */
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
}

/* Класс, который будет добавляться через JS при прокрутке */
.scroll-top-btn.show {
    opacity: 1;
    visibility: visible;
}

.scroll-top-btn:hover {
    background-color: var(--accent-yellow);
    color: #000000;
    border-color: var(--accent-yellow);
    transform: translateY(-3px); /* Легкий эффект приподнимания */
}

.scroll-top-btn svg {
    width: 24px;
    height: 24px;
}