/* ================================
   LayerHub - Main Styles
   ================================ */

:root {
    --bg-dark: #0a0c10;
    --bg-card: #14161c;
    --accent: #00e0ff;
    --accent-dark: #0099cc;
    --text-primary: #f0f3f8;
    --text-secondary: #a0aaba;
    --border: #2a2e3a;
    --radius: 16px;
    --transition: 0.2s ease;
    --danger: #ff6b6b;
    --success: #4caf50;
    --warning: #ffb74d;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.5;
    scroll-behavior: smooth;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Header */
.header {
    position: sticky;
    top: 0;
    background: rgba(10, 12, 16, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
}

.header__container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo__text {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 2px;
    background: linear-gradient(135deg, #fff, var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    text-decoration: none;
}

.nav__list {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav__link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition);
}

.nav__link:hover {
    color: var(--accent);
}

.header__phone {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
}

.burger {
    display: none;
    background: none;
    border: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.burger span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: 0.2s;
}

/* Hero (слайдер) */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
}
.slider-container .hero {
    background-size: cover;
    background-position: center;
}
.hero__bg {
    position: absolute;
    inset: 0;
    z-index: -1;
}
.hero__bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0,0,0,0.8), rgba(0,0,0,0.4));
}
.hero__content {
    position: relative;
    max-width: 700px;
}
.hero__title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}
.hero__subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

/* Кнопки */
.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: 40px;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}
.btn--primary {
    background: var(--accent);
    color: #0a0c10;
}
.btn--primary:hover {
    background: var(--accent-dark);
    transform: scale(1.02);
}
.btn--secondary {
    background: transparent;
    border: 1px solid var(--accent);
    color: var(--accent);
}
.btn--full {
    width: 100%;
    text-align: center;
}
.btn--small {
    padding: 8px 16px;
    font-size: 0.9rem;
}

/* Features (преимущества) */
.features__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin: 48px 0;
}
.feature-card {
    background: var(--bg-card);
    padding: 24px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: transform var(--transition);
}
.feature-card:hover {
    transform: translateY(-4px);
}

/* Общие стили для секций */
.section {
    padding: 80px 0;
}
.section__title {
    font-size: 2.2rem;
    margin-bottom: 48px;
    text-align: center;
    background: linear-gradient(135deg, #fff, var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    display: inline-block;
    width: 100%;
}

/* Галерея */
.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin: 32px 0;
}
.gallery img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: 12px;
    transition: 0.3s;
    cursor: pointer;
}
.gallery img:hover {
    transform: scale(1.02);
}

/* Услуги (горизонтальный скролл) */
.services-scroll {
    display: flex;
    overflow-x: auto;
    gap: 24px;
    scroll-behavior: smooth;
    padding: 8px 0 24px;
    scrollbar-width: thin;
}
.service-card {
    flex: 0 0 280px;
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 16px;
    border: 1px solid var(--border);
}
.service-card__img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-radius: 12px;
}
.scroll-controls {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 16px;
}
.scroll-btn {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 40px;
    cursor: pointer;
}

/* Портфолио */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
    margin: 32px 0;
}
.portfolio-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: transform var(--transition);
}
.portfolio-card:hover {
    transform: translateY(-6px);
}
.portfolio-card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}
.portfolio-card__info {
    padding: 20px;
}
.portfolio-card__info h3 {
    font-size: 1.25rem;
    margin-bottom: 8px;
}
.portfolio-card__info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 12px;
}
.category {
    display: inline-block;
    background: rgba(0, 224, 255, 0.15);
    color: var(--accent);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

/* Отзывы */
.reviews__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    margin: 48px 0;
}
.review-card {
    background: var(--bg-card);
    padding: 24px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}
.review-card__rating {
    font-size: 1.2rem;
    letter-spacing: 2px;
    margin-bottom: 16px;
    color: gold;
}
.review-card__content {
    font-style: italic;
    margin-bottom: 20px;
    line-height: 1.5;
}
.review-card__author {
    font-weight: 600;
    margin-top: 8px;
}
.review-card__position {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Счётчики (counter) */
.counters {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    text-align: center;
    gap: 32px;
    margin: 60px 0;
    padding: 40px 0;
    background: var(--bg-card);
    border-radius: var(--radius);
}
.counter-item {
    flex: 1;
    min-width: 150px;
}
.counter-number {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 8px;
}
.counter-item span:last-child {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* Блок CTA */
.cta {
    background: linear-gradient(135deg, #0a0c10, #14161c);
    text-align: center;
    padding: 80px 20px;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.cta h2 {
    font-size: 2rem;
    margin-bottom: 16px;
}
.cta p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

/* Спонсоры */
.sponsors {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    justify-content: center;
    padding: 60px 20px;
    background: var(--bg-card);
    margin-top: 40px;
}
.sponsor-block {
    background: var(--bg-dark);
    padding: 28px 24px;
    border-radius: var(--radius);
    width: 100%;
    max-width: 340px;
    text-align: left;
    border: 1px solid var(--border);
    transition: transform var(--transition);
    display: flex;
    flex-direction: column;
}
.sponsor-block:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
}
.sponsor-block__header {
    margin-bottom: 16px;
}
.sponsor-block__header h3 {
    color: var(--accent);
    font-size: 1.4rem;
    margin-bottom: 4px;
}
.sponsor-block__subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
}
.sponsor-block__content {
    margin-bottom: 20px;
    flex-grow: 1;
}
.sponsor-features {
    list-style: none;
    margin-top: 12px;
}
.sponsor-features li {
    padding: 4px 0 4px 20px;
    position: relative;
    color: var(--text-secondary);
    font-size: 0.9rem;
}
.sponsor-features li::before {
    content: "•";
    color: var(--accent);
    position: absolute;
    left: 0;
}
.sponsor-form {
    margin-top: auto;
}
.sponsor-form .form__group {
    margin-bottom: 12px;
}
.sponsor-form input,
.sponsor-form textarea {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: inherit;
}
.sponsor-block__footer {
    margin-top: 20px;
    text-align: center;
    font-size: 0.85rem;
}
.sponsor-block__footer a {
    color: var(--text-secondary);
    text-decoration: none;
}
.sponsor-block__footer a:hover {
    color: var(--accent);
}

/* Роботикс-блок (унифицирован со спонсорским) */
.robotics-block {
    composes: sponsor-block; /* не поддерживается в чистом CSS, оставлено для информации, стили скопированы выше */
}
.robotics-gallery__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin: 16px 0;
}
.robotics-gallery__grid img {
    width: 100%;
    height: 100px;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid var(--border);
    transition: transform 0.2s;
}
.robotics-gallery__grid img:hover {
    transform: scale(1.02);
}

/* Статусы форм */
.form__status {
    margin-top: 16px;
    padding: 12px;
    border-radius: 12px;
    text-align: center;
}
.form__status--success {
    background: rgba(76, 175, 80, 0.1);
    color: var(--success);
    border: 1px solid var(--success);
}
.form__status--error {
    background: rgba(255, 107, 107, 0.1);
    color: var(--danger);
    border: 1px solid var(--danger);
}
.error-message {
    color: var(--danger);
    font-size: 0.8rem;
    display: block;
    margin-top: 4px;
}

/* Статистика онлайн (исправлено, убрано дублирование) */
.statistics {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
    padding: 12px 16px;
    background: rgba(0, 224, 255, 0.05);
    border-radius: 40px;
    border: 1px solid var(--border);
    font-size: 0.95rem;
}
.statistics__label {
    color: var(--text-secondary);
}
.statistics__value {
    font-weight: 700;
    color: var(--accent);
    font-size: 1.2rem;
}
.statistics__word {
    color: var(--text-primary);
}

/* Карта */
.contact__map {
    margin-top: 24px;
    border-radius: var(--radius);
    overflow: hidden;
}
.contact__address {
    margin-top: 16px;
    text-align: center;
}
.contact__address h3 {
    margin-bottom: 8px;
    font-size: 1.1rem;
}

/* Форма контактов */
.contact__wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    margin: 48px 0;
}
.form__group {
    margin-bottom: 20px;
}
.form__group input,
.form__group textarea,
.form__group select {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: inherit;
}
.form__group input:focus,
.form__group textarea:focus,
.form__group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(0, 224, 255, 0.1);
}

/* Рейтинг звёздами в форме отзыва */
.rating-group {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}
.stars {
    display: inline-flex;
    flex-direction: row-reverse;
    justify-content: flex-end;
}
.stars input {
    display: none;
}
.stars label {
    font-size: 1.8rem;
    color: #555;
    cursor: pointer;
    transition: color 0.2s;
}
.stars label:hover,
.stars label:hover ~ label,
.stars input:checked ~ label {
    color: gold;
}

/* Футер */
.footer {
    border-top: 1px solid var(--border);
    padding: 32px 0;
    text-align: center;
}

/* Адаптивность */
@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 72px;
        left: -100%;
        width: 80%;
        height: calc(100% - 72px);
        background: var(--bg-dark);
        transition: 0.3s;
        z-index: 999;
    }
    .nav.active {
        left: 0;
    }
    .nav__list {
        flex-direction: column;
        padding: 2rem;
    }
    .burger {
        display: flex;
    }
    .contact__wrapper {
        grid-template-columns: 1fr;
    }
    .hero__title {
        font-size: 2.2rem;
    }
    .section {
        padding: 48px 0;
    }
    .section__title {
        font-size: 1.8rem;
        margin-bottom: 32px;
    }
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    .counters {
        flex-direction: column;
        gap: 24px;
    }
    .sponsor-block {
        max-width: 100%;
    }
    .cta h2 {
        font-size: 1.5rem;
    }
}

/* Анимация появления */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
.section,
.portfolio-card,
.review-card,
.sponsor-block,
.counter-item {
    animation: fadeInUp 0.6s ease-out forwards;
}