:root {
    --primary-color: #0F172A;
    /* Deep Slate */
    --accent-color: #00F0FF;
    /* Electric Cyan */
    --secondary-color: #7000FF;
    /* Electric Violet */
    --text-color: #F8FAFC;
    --text-muted: #94A3B8;
    --bg-dark: #020617;
    --bg-card: #1E293B;
    --font-main: 'Saira', sans-serif;
    --border-radius: 12px;
    --transition: all 0.3s ease;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-accent: 0 0 20px rgba(0, 240, 255, 0.3);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-main);
    background-color: var(--primary-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

button {
    cursor: pointer;
    border: none;
    outline: none;
    font-family: inherit;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section {
    padding: 80px 0;
}

.section__title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    background: linear-gradient(90deg, #fff, var(--accent-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section__title--left {
    text-align: left;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn--primary {
    background: linear-gradient(45deg, var(--secondary-color), var(--accent-color));
    color: #fff;
    box-shadow: var(--shadow-accent);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(0, 240, 255, 0.5);
}

.btn--outline {
    background: transparent;
    border: 2px solid var(--text-muted);
    color: var(--text-color);
}

.btn--outline:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.btn--sm {
    padding: 8px 16px;
    font-size: 0.9rem;
}

.btn--full {
    width: 100%;
}

/* Header */
.header {
    background-color: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 15px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.25rem;
}

.nav__list {
    display: flex;
    gap: 30px;
}

.nav__link {
    font-weight: 500;
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: var(--transition);
}

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

.nav__link:hover::after {
    width: 100%;
}

/* Burger */
.burger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 20px;
    background: transparent;
}

.burger span {
    width: 100%;
    height: 2px;
    background-color: #fff;
    transition: var(--transition);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background-color: var(--primary-color);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu__close {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 2rem;
    background: transparent;
    color: #fff;
}

.mobile-menu__list {
    text-align: center;
}

.mobile-menu__list li {
    margin: 20px 0;
}

.mobile-menu__link {
    font-size: 1.5rem;
    font-weight: 600;
}

/* Hero */
.hero {
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    position: relative;
    background: url('images/hero_bg.jpg') no-repeat center center/cover;
}

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(15, 23, 42, 0.7) 0%, rgba(15, 23, 42, 0.95) 100%);
}

.hero__container {
    position: relative;
    z-index: 2;
    max-width: 800px;
    text-align: center;
    margin: 0 auto;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    padding: 8px 16px;
    border-radius: 50px;
    backdrop-filter: blur(5px);
    margin-bottom: 20px;
    font-size: 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.hero__title {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 20px;
}

.text-highlight {
    color: var(--accent-color);
    position: relative;
}

.hero__subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero__btn {
    padding: 15px 40px;
    font-size: 1.1rem;
}

/* Features */
.features__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--bg-card);
    padding: 30px;
    border-radius: var(--border-radius);
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.feature-card__icon {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.feature-card__title {
    font-size: 1.25rem;
    margin-bottom: 10px;
}

.feature-card__text {
    color: var(--text-muted);
}

/* Services */
.services__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.service-card {
    background-color: var(--bg-card);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    height: 100%;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-accent);
}

.service-card__img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.service-card__content {
    padding: 25px;
}

.service-card__title {
    font-size: 1.25rem;
    margin-bottom: 10px;
}

.service-card__text {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Reviews */
.reviews__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.review-card {
    background-color: var(--bg-card);
    padding: 30px;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.review-card__header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.review-card__avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.review-card__name {
    font-size: 1.1rem;
    margin-bottom: 2px;
}

.review-card__stars {
    color: #FFD700;
    font-size: 0.9rem;
}

.review-card__text {
    color: var(--text-muted);
    font-style: italic;
}

/* Contacts */
.contacts__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: start;
}

.contacts__desc {
    color: var(--text-muted);
    margin-bottom: 30px;
    font-size: 1.1rem;
}

.contacts__list li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    font-size: 1.1rem;
}

.contacts__list i {
    color: var(--accent-color);
    width: 20px;
}

.contact-form {
    background-color: var(--bg-card);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.contact-form__title {
    margin-bottom: 25px;
    font-size: 1.5rem;
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
}

.form-input {
    width: 100%;
    padding: 12px 15px;
    background-color: var(--bg-dark);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #fff;
    font-family: inherit;
    transition: var(--transition);
}

.form-input:focus {
    border-color: var(--accent-color);
}

.error-msg {
    color: #ef4444;
    font-size: 0.8rem;
    margin-top: 5px;
    display: block;
    height: 15px;
}

.captcha-label {
    display: block;
    margin-bottom: 5px;
    font-size: 0.9rem;
}

.submit-btn {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.hidden {
    display: none;
}

/* Footer */
.footer {
    background-color: var(--bg-dark);
    padding: 60px 0 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer__container {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

.logo--footer {
    margin-bottom: 20px;
}

.footer__desc {
    color: var(--text-muted);
    max-width: 300px;
}

.footer__title {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: #fff;
}

.footer__links li {
    margin-bottom: 10px;
}

.footer__links a {
    color: var(--text-muted);
}

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

.footer__bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Cookie Popup */
.cookie-popup {
    position: fixed;
    bottom: 20px;
    left: 20px;
    right: 20px;
    background-color: var(--bg-card);
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.3);
    z-index: 999;
    display: none;
    border: 1px solid var(--accent-color);
    max-width: 500px;
}

.cookie-popup.active {
    display: block;
    animation: slideIn 0.5s ease;
}

@keyframes slideIn {
    from {
        transform: translateY(100%);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.cookie-popup__content p {
    margin-bottom: 15px;
}

.cookie-link {
    color: var(--accent-color);
    text-decoration: underline;
}

.cookie-popup__actions {
    display: flex;
    gap: 10px;
}

/* Modals */
.modal__overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal__overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background-color: var(--bg-card);
    padding: 40px;
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 600px;
    z-index: 2001;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    max-height: 90vh;
    overflow-y: auto;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.modal.active {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
    visibility: visible;
}

.modal__close {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 1.5rem;
    background: transparent;
    color: var(--text-muted);
    transition: var(--transition);
}

.modal__close:hover {
    color: #fff;
    transform: rotate(90deg);
}

.modal__content h3 {
    margin-bottom: 20px;
    color: var(--accent-color);
}

.modal__content p {
    margin-bottom: 15px;
    color: var(--text-muted);
}

.modal__content ul {
    margin-bottom: 15px;
    list-style: disc;
    padding-left: 20px;
    color: var(--text-muted);
}

/* Media Queries */
@media (max-width: 992px) {
    .section__title {
        font-size: 2rem;
    }

    .hero__title {
        font-size: 2.5rem;
    }

    .nav {
        display: none;
    }

    .burger {
        display: flex;
    }

    .contacts__container {
        grid-template-columns: 1fr;
    }

    .footer__container {
        grid-template-columns: 1fr 1fr;
    }

    .services__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .hero__title {
        font-size: 2rem;
    }

    .feature-card,
    .service-card,
    .review-card {
        padding: 20px;
    }

    .footer__container {
        grid-template-columns: 1fr;
    }

    .modal {
        padding: 25px;
    }

    .services__grid {
        grid-template-columns: 1fr;
    }
}