/* ============================================================
   Door Company — Frontend Styles (dacros.uz inspired)
   ============================================================ */

/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-primary, 'Inter', -apple-system, BlinkMacSystemFont, sans-serif);
    font-size: 16px; line-height: 1.6; color: var(--color-text, #333); background: #fff;
}
a { text-decoration: none; color: inherit; transition: color .2s; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

/* === Container === */
.container { max-width: 1240px; margin: 0 auto; padding: 0 20px; }

/* === Buttons === */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 32px; border-radius: 4px; font-size: 15px;
    font-weight: 600; cursor: pointer; transition: all .3s ease;
    border: 2px solid transparent; text-align: center; font-family: inherit;
    letter-spacing: .3px;
}
.btn--primary { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.btn--primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); }
.btn--outline { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn--outline:hover { background: var(--color-primary); color: #fff; }
.btn--white { background: #fff; color: var(--color-primary); border-color: #fff; }
.btn--white:hover { background: rgba(255,255,255,.85); }
.btn--ghost { background: transparent; color: #fff; border-color: rgba(255,255,255,.6); }
.btn--ghost:hover { background: rgba(255,255,255,.15); border-color: #fff; }
.btn--lg { padding: 16px 44px; font-size: 16px; }
.btn--sm { padding: 8px 20px; font-size: 13px; }

/* ============================================================
   HEADER
   ============================================================ */
.header { position: sticky; top: 0; z-index: 100; background: #fff; }

/* Top bar */
.header-top { background: var(--color-dark); color: #fff; padding: 0; font-size: 13px; }
.header-top__inner {
    display: flex; justify-content: space-between; align-items: center;
    height: 40px;
}
.header-top__contacts { display: flex; align-items: center; gap: 24px; }
.header-phone { color: #fff; font-weight: 600; font-size: 14px; letter-spacing: .3px; }
.header-phone:hover { color: var(--color-accent); }
.header-phone i { margin-right: 6px; font-size: 12px; }
.header-top__actions { display: flex; align-items: center; gap: 16px; }
.social-links { display: flex; gap: 10px; }
.social-links a { color: rgba(255,255,255,.7); font-size: 16px; transition: color .2s; }
.social-links a:hover { color: #fff; }

/* Language Switcher */
.lang-switcher { display: flex; gap: 2px; }
.lang-btn {
    background: transparent; border: 1px solid rgba(255,255,255,.25);
    color: rgba(255,255,255,.7); padding: 3px 10px; border-radius: 3px;
    cursor: pointer; font-size: 12px; font-family: inherit;
    font-weight: 600; transition: all .2s; text-transform: uppercase;
    letter-spacing: .5px;
}
.lang-btn:hover { color: #fff; border-color: rgba(255,255,255,.5); }
.lang-btn.active { background: #fff; color: var(--color-dark); border-color: #fff; }

/* Header Main */
.header-main { padding: 0; border-bottom: 1px solid #eef1f5; box-shadow: 0 2px 20px rgba(0,0,0,.06); }
.header-main__inner {
    display: flex; align-items: center; justify-content: space-between;
    height: 72px; gap: 20px;
}
.logo { display: flex; align-items: center; flex-shrink: 0; }
.logo img { height: 48px; width: auto; }
.logo-text { font-size: 26px; font-weight: 800; color: var(--color-primary); letter-spacing: 3px; text-transform: uppercase; }

/* Navigation */
.nav { flex: 1; display: flex; justify-content: center; }
.nav__list { display: flex; gap: 6px; }
.nav__link {
    font-size: 14px; font-weight: 500; color: #444; padding: 8px 14px;
    position: relative; border-radius: 4px; transition: all .2s;
    letter-spacing: .2px;
}
.nav__link:hover { color: var(--color-primary); background: #f0f5fb; }
.nav__link--active { color: var(--color-primary); font-weight: 600; }

/* Header CTA */
.header-cta { flex-shrink: 0; padding: 10px 24px; font-size: 14px; border-radius: 6px; }

/* Header Phone Desktop */
.header-main__phone {
    display: flex; align-items: center; gap: 10px; flex-shrink: 0;
    color: var(--color-dark); font-weight: 600; font-size: 15px;
}
.header-main__phone i { color: var(--color-primary); }

/* Burger */
.burger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 5px; z-index: 201; }
.burger span { width: 24px; height: 2px; background: #333; transition: all .3s; border-radius: 2px; }
.burger.active span:nth-child(1) { transform: rotate(45deg) translateY(7px); }
.burger.active span:nth-child(2) { opacity: 0; }
.burger.active span:nth-child(3) { transform: rotate(-45deg) translateY(-7px); }

/* ============================================================
   HERO SLIDER
   ============================================================ */
.hero-slider { position: relative; overflow: hidden; }
.slider__track { display: flex; transition: transform .6s cubic-bezier(.4,0,.2,1); }
.slider__slide {
    min-width: 100%; min-height: 580px;
    background-size: cover; background-position: center;
    position: relative; display: flex; align-items: center;
}
.slider__slide--placeholder { background: linear-gradient(135deg, color-mix(in srgb, var(--color-dark) 80%, black) 0%, var(--color-primary) 50%, var(--color-accent) 100%); }
.slider__overlay { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(0,0,0,.55) 0%, rgba(0,0,0,.2) 60%, transparent 100%); }
.slider__content { position: relative; z-index: 2; color: #fff; max-width: 600px; }
.slider__title {
    font-size: 46px; font-weight: 800; line-height: 1.15;
    margin-bottom: 18px; letter-spacing: -.5px;
    text-shadow: 0 2px 8px rgba(0,0,0,.2);
}
.slider__subtitle { font-size: 18px; margin-bottom: 32px; opacity: .9; line-height: 1.6; font-weight: 300; }
.slider__buttons { display: flex; gap: 16px; flex-wrap: wrap; }
.slider__arrow {
    position: absolute; top: 50%; transform: translateY(-50%);
    background: rgba(255,255,255,.1); backdrop-filter: blur(4px);
    border: 1px solid rgba(255,255,255,.2);
    color: #fff; width: 52px; height: 52px; border-radius: 50%;
    cursor: pointer; font-size: 18px; transition: all .3s; z-index: 3;
    display: flex; align-items: center; justify-content: center;
}
.slider__arrow:hover { background: rgba(255,255,255,.25); }
.slider__arrow--prev { left: 24px; }
.slider__arrow--next { right: 24px; }
.slider__dots { position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%); display: flex; gap: 10px; z-index: 3; }
.slider__dot {
    width: 10px; height: 10px; border-radius: 50%;
    background: rgba(255,255,255,.35); border: 2px solid rgba(255,255,255,.5);
    cursor: pointer; transition: all .3s; padding: 0;
}
.slider__dot.active { background: #fff; border-color: #fff; transform: scale(1.2); }

/* ============================================================
   SECTIONS
   ============================================================ */
.section { padding: 80px 0; }
.section--gray { background: var(--color-bg-light); }
.section--dark { background: var(--color-dark); }
.section--primary { background: linear-gradient(135deg, color-mix(in srgb, var(--color-dark) 80%, black) 0%, var(--color-primary) 100%); }
.section--accent { background: var(--color-bg-accent); }
.section__title {
    font-size: 34px; font-weight: 700; text-align: center;
    margin-bottom: 16px; color: var(--color-dark);
}
.section__title--left { text-align: left; }
.section__title--white { color: #fff; }
.section__subtitle {
    text-align: center; color: var(--color-text-light); font-size: 16px;
    margin-bottom: 50px; max-width: 600px; margin-left: auto; margin-right: auto;
}
.section__subtitle--white { color: rgba(255,255,255,.7); }
.section__divider {
    width: 50px; height: 3px; background: var(--color-primary); margin: 0 auto 50px;
    border-radius: 2px;
}
.section__action { text-align: center; margin-top: 48px; }

/* ============================================================
   PRODUCT CARDS
   ============================================================ */
.products-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.product-card {
    background: #fff; border-radius: 12px; overflow: hidden;
    box-shadow: 0 2px 16px rgba(0,0,0,.06);
    transition: transform .3s ease, box-shadow .3s ease;
    position: relative;
}
.product-card:hover { transform: translateY(-6px); box-shadow: 0 12px 32px rgba(0,0,0,.12); }
.product-card__badge {
    position: absolute; top: 12px; left: 12px; z-index: 2;
    background: var(--color-danger); color: #fff; font-size: 11px; font-weight: 700;
    padding: 4px 12px; border-radius: 4px; letter-spacing: .5px; text-transform: uppercase;
}
.product-card__badge--new { background: var(--color-primary); }
.product-card__badge--hit { background: var(--color-danger); }
.product-card__badge--popular { background: var(--color-warning); }
.product-card__image {
    aspect-ratio: 3/4; overflow: hidden; background: #f0f2f5;
    position: relative;
}
.product-card__image img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.product-card:hover .product-card__image img { transform: scale(1.06); }
.product-card__info { padding: 18px 16px; }
.product-card__category { font-size: 12px; color: #888; font-weight: 500; margin-bottom: 4px; text-transform: uppercase; letter-spacing: .5px; }
.product-card__name { font-size: 16px; font-weight: 600; margin-bottom: 8px; color: var(--color-dark); line-height: 1.3; }
.product-card__price { font-size: 15px; color: var(--color-primary); font-weight: 700; }
.product-card__price span { font-weight: 400; font-size: 13px; color: #888; }

/* ============================================================
   CATEGORY CARDS
   ============================================================ */
.categories-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.category-card {
    position: relative; border-radius: 12px; overflow: hidden;
    aspect-ratio: 4/3; display: flex; align-items: flex-end;
    transition: transform .3s ease;
}
.category-card:hover { transform: translateY(-4px); }
.category-card__image {
    position: absolute; inset: 0;
}
.category-card__image img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.category-card:hover .category-card__image img { transform: scale(1.06); }
.category-card__overlay {
    position: absolute; inset: 0;
    background: linear-gradient(transparent 30%, rgba(0,0,0,.65));
}
.category-card__name {
    position: relative; z-index: 2; padding: 20px; color: #fff;
    font-size: 18px; font-weight: 600; line-height: 1.3;
    text-shadow: 0 1px 4px rgba(0,0,0,.3);
}

/* ============================================================
   ABOUT HOME SECTION
   ============================================================ */
.about-home {
    display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.about-home__text h2 { text-align: left; margin-bottom: 24px; }
.about-home__text p { font-size: 16px; color: #555; margin-bottom: 20px; line-height: 1.8; }
.about-home__text .btn { margin-top: 8px; }
.about-home__image { border-radius: 12px; overflow: hidden; aspect-ratio: 4/3; background: #e8edf3; }
.about-home__image img { width: 100%; height: 100%; object-fit: cover; }

/* ============================================================
   ADVANTAGE CARDS
   ============================================================ */
.advantages-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.advantage-card {
    position: relative; border-radius: 12px; overflow: hidden;
    min-height: 320px; display: flex; align-items: flex-end;
    transition: transform .3s ease;
}
.advantage-card:hover { transform: translateY(-4px); }
.advantage-card__bg {
    position: absolute; inset: 0; background-size: cover;
    background-position: center; transition: transform .5s ease;
}
.advantage-card:hover .advantage-card__bg { transform: scale(1.05); }
.advantage-card__overlay {
    position: absolute; inset: 0;
    background: linear-gradient(transparent 20%, rgba(26,45,69,.85));
}
.advantage-card__content { position: relative; z-index: 2; padding: 30px; color: #fff; }
.advantage-card__icon { font-size: 36px; color: var(--color-accent); margin-bottom: 16px; }
.advantage-card__title { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.advantage-card__desc { font-size: 14px; color: rgba(255,255,255,.8); line-height: 1.7; }

/* ============================================================
   QUALITY PILLARS
   ============================================================ */
.pillars-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.pillar-card {
    text-align: center; padding: 28px 20px; background: #fff;
    border-radius: 12px; box-shadow: 0 2px 16px rgba(0,0,0,.05);
    transition: transform .3s ease, box-shadow .3s ease;
}
.pillar-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,.1); }
.pillar-card__image {
    width: 100%; aspect-ratio: 4/3; border-radius: 8px;
    overflow: hidden; margin-bottom: 18px;
}
.pillar-card__image img { width: 100%; height: 100%; object-fit: cover; }
.pillar-card__title { font-size: 17px; font-weight: 600; color: var(--color-dark); margin-bottom: 8px; }
.pillar-card__desc { font-size: 14px; color: var(--color-text-light); line-height: 1.6; }

/* ============================================================
   STATISTICS
   ============================================================ */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }
.stat-item { text-align: center; color: #fff; padding: 28px 16px; }
.stat-item__icon {
    width: 64px; height: 64px; border-radius: 16px; margin: 0 auto 18px;
    background: rgba(255,255,255,.12); display: flex; align-items: center;
    justify-content: center; font-size: 24px; color: var(--color-accent);
}
.stat-item__number { font-size: 42px; font-weight: 800; margin-bottom: 6px; letter-spacing: -1px; }
.stat-item__label { font-size: 14px; opacity: .8; font-weight: 400; }

/* ============================================================
   PARTNERS
   ============================================================ */
.partners-section { background: var(--color-bg-light); }
.partners-grid {
    display: flex; flex-wrap: wrap; justify-content: center;
    align-items: center; gap: 48px; padding: 10px 0;
}
.partner-logo { padding: 8px; }
.partner-logo img {
    height: 50px; width: auto; filter: grayscale(1) brightness(1.2);
    opacity: .5; transition: all .3s;
}
.partner-logo:hover img { filter: grayscale(0); opacity: 1; }

/* ============================================================
   PORTFOLIO CARDS
   ============================================================ */
.portfolio-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.portfolio-card {
    position: relative; border-radius: 12px; overflow: hidden;
    cursor: pointer;
}
.portfolio-card__image { aspect-ratio: 16/9; }
.portfolio-card__image img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.portfolio-card:hover .portfolio-card__image img { transform: scale(1.05); }
.portfolio-card__overlay {
    position: absolute; inset: 0;
    background: linear-gradient(transparent 40%, rgba(0,0,0,.7));
    display: flex; align-items: flex-end; padding: 28px;
    transition: background .3s ease;
}
.portfolio-card:hover .portfolio-card__overlay { background: linear-gradient(transparent 20%, color-mix(in srgb, var(--color-primary) 80%, transparent)); }
.portfolio-card__info { color: #fff; }
.portfolio-card__title { font-size: 22px; font-weight: 700; margin-bottom: 4px; }
.portfolio-card__desc { font-size: 14px; opacity: .8; }

/* ============================================================
   CONTACT FORM
   ============================================================ */
.contact-home { max-width: 700px; margin: 0 auto; text-align: center; }
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.contact-form--home { text-align: left; }
.contact-form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-input {
    width: 100%; padding: 14px 18px; border: 1px solid #dce1e8;
    border-radius: 8px; font-size: 15px; font-family: inherit;
    transition: all .2s; background: #fff;
}
.form-input:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 10%, transparent); }
textarea.form-input { resize: vertical; min-height: 100px; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer { background: #111c2b; color: #b0b8c4; padding: 64px 0 0; }
.footer__inner { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 48px; }
.footer-logo img { height: 40px; margin-bottom: 16px; }
.footer-logo .logo-text { color: #fff; font-size: 22px; font-weight: 800; display: inline-block; margin-bottom: 16px; letter-spacing: 2px; }
.footer__desc { font-size: 14px; line-height: 1.8; color: #7a8594; }
.footer__title { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 20px; letter-spacing: .3px; }
.footer__links li { margin-bottom: 10px; }
.footer__links a { color: #7a8594; transition: color .2s; font-size: 14px; }
.footer__links a:hover { color: #fff; padding-left: 4px; }
.footer__contacts li { margin-bottom: 14px; font-size: 14px; display: flex; align-items: flex-start; gap: 10px; }
.footer__contacts i { color: #4a82bd; font-size: 14px; margin-top: 3px; flex-shrink: 0; }
.footer__contacts a { color: #b0b8c4; }
.footer__contacts a:hover { color: #fff; }
.footer__social { display: flex; gap: 12px; margin-top: 24px; }
.footer__social a {
    width: 38px; height: 38px; border-radius: 8px;
    background: rgba(255,255,255,.06); display: flex;
    align-items: center; justify-content: center;
    color: #7a8594; font-size: 18px; transition: all .2s;
}
.footer__social a:hover { background: var(--color-primary); color: #fff; }
.footer__map { margin: 0 0 0; border-radius: 12px; overflow: hidden; }
.footer__map iframe { width: 100%; height: 320px; border: none; }
.footer__bottom {
    border-top: 1px solid rgba(255,255,255,.08); padding: 20px 0;
    display: flex; justify-content: space-between; align-items: center;
    font-size: 13px; color: #5a6677;
}
.footer__bottom-links { display: flex; gap: 20px; }
.footer__bottom-links a { color: #5a6677; }
.footer__bottom-links a:hover { color: #fff; }

/* ============================================================
   PAGE HEADER (inner pages)
   ============================================================ */
.page-header {
    background: linear-gradient(135deg, color-mix(in srgb, var(--color-dark) 80%, black) 0%, var(--color-primary) 100%);
    padding: 56px 0; text-align: center;
}
.page-header__title { color: #fff; font-size: 34px; font-weight: 700; letter-spacing: -.3px; }
.breadcrumbs {
    display: flex; justify-content: center; gap: 4px;
    margin-top: 12px; font-size: 14px; color: rgba(255,255,255,.5);
}
.breadcrumbs a { color: rgba(255,255,255,.7); }
.breadcrumbs a:hover { color: #fff; }
.breadcrumbs span:not(:last-child)::after { content: ' /'; margin-left: 4px; }

/* ============================================================
   PRODUCT DETAIL
   ============================================================ */
.product-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.product-gallery { border-radius: 12px; overflow: hidden; }
.product-gallery__main { aspect-ratio: 3/4; background: #f0f2f5; border-radius: 12px; overflow: hidden; }
.product-gallery__main img { width: 100%; height: 100%; object-fit: cover; }
.product-gallery__thumbs { display: flex; gap: 8px; margin-top: 12px; }
.product-gallery__thumb {
    width: 80px; height: 80px; border-radius: 8px; overflow: hidden;
    cursor: pointer; border: 2px solid transparent; transition: border-color .2s;
}
.product-gallery__thumb.active, .product-gallery__thumb:hover { border-color: var(--color-primary); }
.product-gallery__thumb img { width: 100%; height: 100%; object-fit: cover; }
.product-info { padding-top: 8px; }
.product-info__category { font-size: 13px; color: #888; text-transform: uppercase; letter-spacing: .5px; margin-bottom: 8px; }
.product-info__name { font-size: 30px; font-weight: 700; color: var(--color-dark); margin-bottom: 16px; line-height: 1.2; }
.product-info__price { font-size: 24px; font-weight: 700; color: var(--color-primary); margin-bottom: 24px; }
.product-info__desc { color: #555; line-height: 1.8; margin-bottom: 32px; font-size: 15px; }

/* ============================================================
   NEWS CARDS
   ============================================================ */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card {
    background: #fff; border-radius: 12px; overflow: hidden;
    box-shadow: 0 2px 16px rgba(0,0,0,.06);
    transition: transform .3s ease, box-shadow .3s ease;
}
.news-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,.1); }
.news-card__image { aspect-ratio: 16/10; overflow: hidden; }
.news-card__image img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.news-card:hover .news-card__image img { transform: scale(1.05); }
.news-card__body { padding: 22px; }
.news-card__date { font-size: 12px; color: #999; margin-bottom: 10px; font-weight: 500; letter-spacing: .5px; }
.news-card__title { font-size: 18px; font-weight: 600; color: var(--color-dark); margin-bottom: 10px; line-height: 1.4; }
.news-card__excerpt { font-size: 14px; color: var(--color-text-light); line-height: 1.6; }

/* === Article Detail === */
.article-detail { max-width: 800px; margin: 0 auto; }
.article-detail__image { border-radius: 12px; overflow: hidden; margin-bottom: 32px; }
.article-detail__image img { width: 100%; }
.article-detail__content { line-height: 1.9; color: #444; font-size: 16px; }
.article-detail__content p { margin-bottom: 18px; }

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contacts-page { display: grid; grid-template-columns: 1fr 1.2fr; gap: 60px; }
.contacts-info__item { display: flex; gap: 16px; margin-bottom: 28px; }
.contacts-info__icon {
    width: 52px; height: 52px; background: color-mix(in srgb, var(--color-primary) 10%, white); border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    color: var(--color-primary); font-size: 20px; flex-shrink: 0;
}
.contacts-info__text h4 { font-size: 15px; font-weight: 600; margin-bottom: 4px; color: var(--color-dark); }
.contacts-info__text p, .contacts-info__text a { color: #666; font-size: 15px; }
.contacts-info__text a:hover { color: var(--color-primary); }
.contacts-form { background: var(--color-bg-accent); border-radius: 16px; padding: 36px; }
.contacts-form h3 { font-size: 22px; font-weight: 700; margin-bottom: 24px; color: var(--color-dark); }
.form-group { margin-bottom: 16px; }
.form-error { color: var(--color-danger); font-size: 13px; margin-top: 4px; }

/* ============================================================
   MESSAGES (toast-style)
   ============================================================ */
.messages { position: fixed; top: 120px; right: 20px; z-index: 1000; display: flex; flex-direction: column; gap: 8px; max-width: 380px; }
.message {
    padding: 14px 20px; border-radius: 10px; font-size: 14px; color: #fff;
    animation: slideIn .3s ease; box-shadow: 0 4px 16px rgba(0,0,0,.15);
    display: flex; align-items: center; gap: 8px;
}
.message--success { background: var(--color-success); }
.message--error { background: var(--color-danger); }
@keyframes slideIn { from { opacity: 0; transform: translateX(30px); } to { opacity: 1; transform: translateX(0); } }

/* ============================================================
   SCROLL ANIMATIONS
   ============================================================ */
.animate-on-scroll {
    opacity: 0; transform: translateY(30px);
    transition: opacity .6s ease, transform .6s ease;
}
.animate-on-scroll.animated {
    opacity: 1; transform: translateY(0);
}
/* Staggered delay for grid items */
.products-grid .animate-on-scroll:nth-child(1) { transition-delay: 0s; }
.products-grid .animate-on-scroll:nth-child(2) { transition-delay: .1s; }
.products-grid .animate-on-scroll:nth-child(3) { transition-delay: .2s; }
.products-grid .animate-on-scroll:nth-child(4) { transition-delay: .3s; }
.categories-grid .animate-on-scroll:nth-child(1) { transition-delay: 0s; }
.categories-grid .animate-on-scroll:nth-child(2) { transition-delay: .1s; }
.categories-grid .animate-on-scroll:nth-child(3) { transition-delay: .2s; }
.categories-grid .animate-on-scroll:nth-child(4) { transition-delay: .3s; }
.stats-grid .animate-on-scroll:nth-child(1) { transition-delay: 0s; }
.stats-grid .animate-on-scroll:nth-child(2) { transition-delay: .15s; }
.stats-grid .animate-on-scroll:nth-child(3) { transition-delay: .3s; }
.stats-grid .animate-on-scroll:nth-child(4) { transition-delay: .45s; }

/* ============================================================
   LIGHTBOX
   ============================================================ */
.lightbox {
    position: fixed; inset: 0; z-index: 9999;
    display: flex; align-items: center; justify-content: center;
    opacity: 0; transition: opacity .3s ease;
}
.lightbox.active { opacity: 1; }
.lightbox__backdrop { position: absolute; inset: 0; background: rgba(0,0,0,.85); }
.lightbox__content {
    position: relative; max-width: 90vw; max-height: 90vh;
    transform: scale(.9); transition: transform .3s ease;
}
.lightbox.active .lightbox__content { transform: scale(1); }
.lightbox__content img { max-width: 100%; max-height: 90vh; border-radius: 8px; display: block; }
.lightbox__close {
    position: absolute; top: -16px; right: -16px;
    width: 40px; height: 40px; border-radius: 50%;
    background: #fff; border: none; font-size: 24px;
    cursor: pointer; display: flex; align-items: center;
    justify-content: center; color: #333; box-shadow: 0 2px 12px rgba(0,0,0,.3);
    transition: transform .2s;
}
.lightbox__close:hover { transform: scale(1.1); }

/* ============================================================
   FLOATING BUTTONS (back to top + telegram)
   ============================================================ */
.floating-buttons {
    position: fixed; bottom: 28px; right: 28px; z-index: 900;
    display: flex; flex-direction: column; gap: 12px;
    opacity: 0; transform: translateY(20px);
    transition: opacity .3s ease, transform .3s ease;
    pointer-events: none;
}
.floating-buttons.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.floating-btn {
    width: 52px; height: 52px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 20px; cursor: pointer; border: none;
    box-shadow: 0 4px 16px rgba(0,0,0,.15); transition: transform .2s, box-shadow .2s;
}
.floating-btn:hover { transform: scale(1.1); box-shadow: 0 6px 24px rgba(0,0,0,.2); }
.floating-btn--telegram { background: #0088cc; color: #fff; text-decoration: none; }
.floating-btn--top { background: var(--color-primary); color: #fff; }
.floating-btn--chat { background: #22c55e; color: #fff; }

/* ============================================================
   CHAT WIDGET
   ============================================================ */
.chat-widget {
    position: fixed; bottom: 100px; right: 28px;
    width: 370px; max-width: calc(100vw - 40px);
    height: 520px; max-height: calc(100vh - 140px);
    background: #fff; border-radius: 16px;
    box-shadow: 0 8px 40px rgba(0,0,0,.18);
    display: flex; flex-direction: column;
    z-index: 950; overflow: hidden;
    opacity: 0; transform: translateY(20px) scale(.95);
    pointer-events: none;
    transition: all .3s cubic-bezier(.4,0,.2,1);
}
.chat-widget.open {
    opacity: 1; transform: translateY(0) scale(1);
    pointer-events: auto;
}

/* Header */
.chat-widget__header {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
    color: #fff; padding: 16px 20px;
    display: flex; justify-content: space-between; align-items: center;
    flex-shrink: 0;
}
.chat-widget__title { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 16px; }
.chat-widget__close {
    background: transparent; border: none; color: #fff;
    font-size: 18px; cursor: pointer; padding: 4px 8px;
    opacity: .8; transition: opacity .2s;
}
.chat-widget__close:hover { opacity: 1; }

/* Messages */
.chat-widget__messages {
    flex: 1; overflow-y: auto; padding: 16px;
    background: var(--color-bg-light);
    display: flex; flex-direction: column; gap: 12px;
}
.chat-msg { display: flex; gap: 8px; animation: chatMsgIn .3s ease; }
.chat-msg--bot { align-self: flex-start; max-width: 85%; }
.chat-msg--user { align-self: flex-end; flex-direction: row-reverse; max-width: 85%; }
@keyframes chatMsgIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

.chat-msg__avatar {
    width: 32px; height: 32px; border-radius: 50%;
    background: var(--color-primary); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: 14px; flex-shrink: 0;
}
.chat-msg--user .chat-msg__avatar { background: var(--color-dark); }

.chat-msg__bubble {
    padding: 10px 14px; border-radius: 12px;
    font-size: 14px; line-height: 1.5;
}
.chat-msg--bot .chat-msg__bubble {
    background: #fff; color: var(--color-text);
    box-shadow: 0 1px 3px rgba(0,0,0,.06);
    border-top-left-radius: 4px;
}
.chat-msg--user .chat-msg__bubble {
    background: var(--color-primary); color: #fff;
    border-top-right-radius: 4px;
}

/* Typing indicator */
.chat-typing { display: flex; gap: 4px; padding: 4px 0; }
.chat-typing span {
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--color-text-light); animation: typingDot 1.2s infinite;
}
.chat-typing span:nth-child(2) { animation-delay: .2s; }
.chat-typing span:nth-child(3) { animation-delay: .4s; }
@keyframes typingDot { 0%,60%,100% { opacity: .3; transform: translateY(0); } 30% { opacity: 1; transform: translateY(-4px); } }

/* Input area */
.chat-widget__input {
    padding: 14px; background: #fff;
    border-top: 1px solid #e5e7eb; flex-shrink: 0;
}

/* Option buttons */
.chat-options { display: flex; flex-direction: column; gap: 8px; }
.chat-opt-btn {
    background: #fff; border: 2px solid var(--color-primary);
    color: var(--color-primary); padding: 11px 16px;
    border-radius: 10px; font-size: 14px; font-weight: 500;
    cursor: pointer; transition: all .2s; text-align: left;
    font-family: inherit; line-height: 1.3;
}
.chat-opt-btn:hover { background: var(--color-primary); color: #fff; transform: translateX(4px); }

/* Text input */
.chat-input-row { display: flex; gap: 8px; }
.chat-input {
    flex: 1; padding: 10px 14px; border: 2px solid #e5e7eb;
    border-radius: 10px; font-size: 14px; font-family: inherit;
    transition: border-color .2s; outline: none;
}
.chat-input:focus { border-color: var(--color-primary); }
.chat-send {
    background: var(--color-primary); color: #fff; border: none;
    width: 42px; height: 42px; border-radius: 10px;
    cursor: pointer; font-size: 16px; transition: background .2s;
    display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}
.chat-send:hover { background: var(--color-primary-hover); }

/* Link button inside chat */
.chat-link-btn {
    display: inline-block; background: var(--color-primary);
    color: #fff; padding: 8px 16px; border-radius: 8px;
    font-size: 13px; font-weight: 500; margin-top: 8px;
    transition: background .2s; text-decoration: none;
}
.chat-link-btn:hover { background: var(--color-primary-hover); }

/* Chat mobile */
@media (max-width: 768px) {
    .chat-widget { right: 0; bottom: 0; width: 100%; height: 100vh; max-width: none; max-height: none; border-radius: 0; }
}

/* ============================================================
   SKELETON LOADING
   ============================================================ */
.skeleton-loading {
    position: relative; overflow: hidden;
}
.skeleton-loading::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(90deg, #f0f2f5 25%, #e8eaed 50%, #f0f2f5 75%);
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s infinite;
}
@keyframes skeleton-shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ============================================================
   BREADCRUMBS (improved)
   ============================================================ */
.breadcrumbs a { position: relative; }
.breadcrumbs a::after {
    content: ''; position: absolute; bottom: -2px; left: 0;
    width: 0; height: 1px; background: rgba(255,255,255,.7);
    transition: width .2s ease;
}
.breadcrumbs a:hover::after { width: 100%; }

/* ============================================================
   CATALOG TOOLBAR (search + sort)
   ============================================================ */
.catalog-toolbar {
    display: flex; justify-content: space-between; align-items: center;
    gap: 16px; margin-bottom: 32px; flex-wrap: wrap;
}
.catalog-search {
    position: relative; flex: 1; max-width: 400px;
}
.catalog-search__input {
    width: 100%; padding: 12px 16px 12px 44px; border: 1px solid #dce1e8;
    border-radius: 8px; font-size: 15px; font-family: inherit;
    transition: all .2s; background: #fff;
}
.catalog-search__input:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary) 10%, transparent); }
.catalog-search__icon {
    position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
    color: #999; font-size: 16px; pointer-events: none;
}
.catalog-sort select {
    padding: 12px 36px 12px 16px; border: 1px solid #dce1e8;
    border-radius: 8px; font-size: 14px; font-family: inherit;
    background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23666' d='M6 8L1 3h10z'/%3E%3C/svg%3E") no-repeat right 12px center;
    appearance: none; cursor: pointer; color: #444;
    transition: border-color .2s;
}
.catalog-sort select:focus { outline: none; border-color: var(--color-primary); }
.catalog-results { font-size: 14px; color: #888; }

/* ============================================================
   404 PAGE
   ============================================================ */
.error-page { text-align: center; padding: 80px 20px; }
.error-page__code { font-size: 120px; font-weight: 800; color: var(--color-primary); line-height: 1; margin-bottom: 16px; letter-spacing: -4px; }
.error-page__title { font-size: 28px; font-weight: 700; color: var(--color-dark); margin-bottom: 16px; }
.error-page__text { font-size: 16px; color: var(--color-text-light); margin-bottom: 32px; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
/* Desktop: hide mobile-only elements */
.mobile-nav-extras { display: none; }

@media (max-width: 1024px) {
    .products-grid { grid-template-columns: repeat(3, 1fr); }
    .categories-grid { grid-template-columns: repeat(3, 1fr); }
    .pillars-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .about-home { grid-template-columns: 1fr; gap: 40px; }
    .footer__inner { grid-template-columns: 1fr 1fr; }
    .header-cta { display: none; }
    .nav__link { padding: 8px 10px; font-size: 13px; }
}

@media (max-width: 768px) {
    .container { padding: 0 16px; }
    .header-top { display: none; }
    .header-main__phone { display: none; }
    .header-main__inner { height: 60px; }
    .logo-text { font-size: 20px; letter-spacing: 2px; }
    .burger { display: flex; }

    /* Mobile Navigation */
    .nav {
        position: fixed; top: 0; left: -100%; width: 300px; height: 100vh;
        background: #fff; z-index: 200; padding: 24px;
        transition: left .3s ease; box-shadow: 4px 0 24px rgba(0,0,0,.1);
        flex-direction: column; justify-content: flex-start;
        overflow-y: auto;
    }
    .nav.active { left: 0; }
    .nav__list { flex-direction: column; gap: 0; margin-top: 48px; }
    .nav__link { display: block; padding: 14px 0; font-size: 16px; border-bottom: 1px solid #f0f0f0; border-radius: 0; }
    .nav-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.4); z-index: 150; display: none; }
    .nav-overlay.active { display: block; }

    /* Mobile nav extras: phone + lang switcher */
    .mobile-nav-extras { display: flex; flex-direction: column; gap: 16px; margin-top: 24px; padding-top: 24px; border-top: 1px solid #eee; }
    .mobile-nav-phone { color: var(--color-dark); font-weight: 600; font-size: 16px; }
    .mobile-nav-phone i { color: var(--color-primary); margin-right: 8px; }
    .mobile-lang-switcher { display: flex; gap: 6px; }
    .mobile-lang-switcher .lang-btn { background: var(--color-bg-light); color: #444; border: 1px solid #dce1e8; padding: 6px 14px; font-size: 13px; }
    .mobile-lang-switcher .lang-btn.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }

    /* Hero slider */
    .slider__title { font-size: 26px; }
    .slider__subtitle { font-size: 14px; margin-bottom: 24px; }
    .slider__slide { min-height: 360px; }
    .slider__content { max-width: 100%; }
    .slider__arrow { width: 38px; height: 38px; font-size: 14px; }
    .slider__arrow--prev { left: 12px; }
    .slider__arrow--next { right: 12px; }
    .btn--lg { padding: 12px 28px; font-size: 14px; }

    /* Sections */
    .section { padding: 48px 0; }
    .section__title { font-size: 24px; margin-bottom: 12px; }
    .section__subtitle { font-size: 14px; margin-bottom: 36px; }
    .section__divider { margin-bottom: 36px; }
    .section__action { margin-top: 32px; }

    /* Grids */
    .products-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .product-card__info { padding: 14px 12px; }
    .product-card__name { font-size: 14px; }
    .product-card__price { font-size: 13px; }
    .product-card__category { font-size: 11px; }
    .categories-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .category-card__name { font-size: 15px; padding: 16px; }
    .advantages-grid { grid-template-columns: 1fr; gap: 14px; }
    .advantage-card { min-height: 220px; }
    .advantage-card__content { padding: 20px; }
    .advantage-card__title { font-size: 18px; }
    .pillars-grid { grid-template-columns: 1fr 1fr; gap: 14px; }
    .pillar-card { padding: 20px 14px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .stat-item { padding: 20px 12px; }
    .stat-item__number { font-size: 30px; }
    .stat-item__icon { width: 50px; height: 50px; font-size: 20px; }
    .portfolio-grid { grid-template-columns: 1fr; }
    .news-grid { grid-template-columns: 1fr; gap: 16px; }

    /* Product detail */
    .product-detail { grid-template-columns: 1fr; gap: 24px; }
    .product-info__name { font-size: 24px; }
    .product-info__price { font-size: 20px; }

    /* Contacts */
    .contacts-page { grid-template-columns: 1fr; gap: 30px; }
    .contacts-form { padding: 24px; }
    .contact-form__row { grid-template-columns: 1fr; }

    /* About */
    .about-home__text p { font-size: 15px; }

    /* Page header */
    .page-header { padding: 40px 0; }
    .page-header__title { font-size: 26px; }
    .breadcrumbs { font-size: 13px; }

    /* Footer */
    .footer { padding: 48px 0 0; }
    .footer__inner { grid-template-columns: 1fr 1fr; gap: 24px; }
    .footer__map iframe { height: 240px; }
    .footer__bottom { flex-direction: column; gap: 8px; text-align: center; }

    /* Messages */
    .messages { top: 70px; right: 12px; left: 12px; max-width: none; }

    /* Catalog toolbar */
    .catalog-toolbar { flex-direction: column; align-items: stretch; }
    .catalog-search { max-width: none; }

    /* Floating buttons */
    .floating-buttons { bottom: 20px; right: 16px; }
    .floating-btn { width: 46px; height: 46px; font-size: 18px; }

    /* Slider buttons */
    .slider__buttons { flex-direction: column; gap: 12px; }
    .slider__buttons .btn { text-align: center; }
}

@media (max-width: 480px) {
    .container { padding: 0 12px; }
    .products-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
    .product-card__badge { font-size: 10px; padding: 3px 8px; top: 8px; left: 8px; }
    .categories-grid { grid-template-columns: 1fr; }
    .category-card { aspect-ratio: 16/9; }
    .pillars-grid { grid-template-columns: 1fr; }
    .slider__title { font-size: 22px; }
    .slider__slide { min-height: 300px; }
    .slider__arrow { display: none; }
    .section { padding: 40px 0; }
    .section__title { font-size: 22px; }
    .footer__inner { grid-template-columns: 1fr; gap: 20px; }
    .footer__map iframe { height: 200px; }
    .page-header { padding: 32px 0; }
    .page-header__title { font-size: 22px; }
    .header-main__inner { height: 52px; }
    .logo-text { font-size: 18px; }
    .stat-item__number { font-size: 26px; }
    .stat-item__label { font-size: 12px; }
    .contacts-form { padding: 18px; border-radius: 12px; }
    .contacts-form h3 { font-size: 18px; }
    .form-input { padding: 12px 14px; font-size: 14px; }
    .about-home { gap: 24px; }
    .partners-grid { gap: 24px; }
    .partner-logo img { height: 36px; }
}