:root {
    --primary: #00F2EA;
    --secondary: #7000FF;
    --bg-dark: #0B0C15;
    --bg-card: #151621;
    --text-main: #E0E6ED;
    --text-muted: #94A3B8;
    --accent: #FF0055;
    --gradient-main: linear-gradient(135deg, var(--primary), var(--secondary));
    --transition: all 0.3s ease;
    --font-main: 'Space Grotesk', sans-serif;
    --container-padding: 20px;
    --header-height: 70px;
}

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

html {
    scroll-behavior: smooth;
}

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

img {
    max-width: 100%;
    display: block;
}

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

ul {
    list-style: none;
}

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

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

.section {
    padding: 80px 0;
}

.section__title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 50px;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
}

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

.btn--primary {
    background: var(--gradient-main);
    color: #fff;
    box-shadow: 0 4px 15px rgba(0, 242, 234, 0.3);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 242, 234, 0.5);
}

.btn--outline {
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn--outline:hover {
    background: var(--primary);
    color: var(--bg-dark);
}

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

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

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(11, 12, 21, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header__container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: -0.5px;
}

.logo__icon {
    width: 32px;
    height: 32px;
}

.nav {
    display: none;
}

/* Burger */
.burger {
    width: 30px;
    height: 20px;
    position: relative;
    z-index: 1002;
}

.burger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-main);
    position: absolute;
    left: 0;
    transition: var(--transition);
}

.burger span:nth-child(1) {
    top: 0;
}

.burger span:nth-child(2) {
    top: 9px;
}

.burger span:nth-child(3) {
    top: 18px;
}

.burger.active span:nth-child(1) {
    transform: rotate(45deg);
    top: 9px;
}

.burger.active span:nth-child(2) {
    opacity: 0;
}

.burger.active span:nth-child(3) {
    transform: rotate(-45deg);
    top: 9px;
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: var(--bg-dark);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: 0.4s ease-in-out;
}

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

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

.mobile-menu__link {
    font-size: 2rem;
    font-weight: 700;
    display: block;
    margin: 20px 0;
    color: var(--text-main);
}

.mobile-menu__link:hover {
    color: var(--primary);
}

.mobile-menu__close {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 2rem;
    color: var(--text-main);
}

/* Hero */
.hero {
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    position: relative;
    background: radial-gradient(circle at center, #1a1c2e 0%, var(--bg-dark) 100%);
    overflow: hidden;
}

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('images/hero.jpg') no-repeat center center/cover;
    opacity: 0.3;
    z-index: 1;
}

.hero__container {
    position: relative;
    z-index: 2;
    text-align: center;
    padding-top: var(--header-height);
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    margin-bottom: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero__title {
    font-size: 2.5rem;
    line-height: 1.2;
    margin-bottom: 20px;
    background: linear-gradient(to right, #fff, var(--text-muted));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero__subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 40px;
}

/* Features */
.features__grid {
    display: grid;
    gap: 30px;
    grid-template-columns: 1fr;
}

.feature-card {
    background: var(--bg-card);
    padding: 30px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

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

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

.feature-card__title {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

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

/* Services */
.services__grid {
    display: grid;
    gap: 30px;
    grid-template-columns: 1fr;
}

.service-card {
    background: var(--bg-card);
    border-radius: 20px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.service-card:hover {
    transform: scale(1.02);
}

.service-card__image {
    height: 200px;
    overflow: hidden;
}

.service-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.service-card:hover .service-card__image img {
    transform: scale(1.1);
}

.service-card__content {
    padding: 25px;
}

.service-card__title {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--primary);
}

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

/* Reviews */
.reviews__grid {
    display: grid;
    gap: 30px;
    grid-template-columns: 1fr;
}

.review-card {
    background: var(--bg-card);
    padding: 25px;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

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

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

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

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

/* Contacts */
.contacts__wrapper {
    display: grid;
    gap: 40px;
    grid-template-columns: 1fr;
}

.contacts__info {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contacts__item {
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.contacts__item i {
    font-size: 1.5rem;
    color: var(--primary);
    margin-top: 5px;
}

.contacts__item h4 {
    margin-bottom: 5px;
    font-size: 1.1rem;
}

.contacts__item p {
    color: var(--text-muted);
}

.contact-form {
    background: var(--bg-card);
    padding: 30px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

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

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

.form-group input {
    width: 100%;
    padding: 12px 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: var(--text-main);
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus {
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.1);
}

.captcha-group {
    display: flex;
    align-items: center;
    gap: 15px;
}

.captcha-group label {
    white-space: nowrap;
}

.btn__loader {
    display: none;
    margin-left: 10px;
}

.btn.loading .btn__text {
    display: none;
}

.btn.loading .btn__loader {
    display: inline-block;
}

/* Footer */
.footer {
    background: #000;
    padding: 60px 0 30px;
    margin-top: 80px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__container {
    display: grid;
    gap: 40px;
    grid-template-columns: 1fr;
    text-align: center;
}

.footer__desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 15px;
}

.footer__title {
    margin-bottom: 20px;
    color: #fff;
}

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

.footer__links a,
.footer__links button {
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer__links a:hover,
.footer__links button:hover {
    color: var(--primary);
}

/* Modals */
.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    background: var(--bg-card);
    padding: 40px;
    border-radius: 20px;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

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

.modal__close {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 2rem;
    color: var(--text-muted);
}

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

.modal__content h4 {
    margin: 15px 0 10px;
}

.modal__content p {
    color: var(--text-muted);
    margin-bottom: 10px;
    font-size: 0.95rem;
}

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

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    z-index: 1500;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Cookie Popup */
.cookie-popup {
    position: fixed;
    bottom: 20px;
    left: 20px;
    right: 20px;
    background: var(--bg-card);
    padding: 20px;
    border-radius: 15px;
    border: 1px solid var(--primary);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    z-index: 3000;
    display: none;
    flex-direction: column;
    gap: 15px;
    transform: translateY(100px);
    opacity: 0;
    transition: 0.5s ease;
}

.cookie-popup.show {
    transform: translateY(0);
    opacity: 1;
}

.cookie-popup p {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.link-btn {
    color: var(--primary);
    text-decoration: underline;
    font-size: inherit;
    padding: 0;
}

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

/* Media Queries */
@media (min-width: 768px) {
    .section__title {
        font-size: 3rem;
    }

    .hero__title {
        font-size: 4rem;
    }

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

    .footer__container {
        grid-template-columns: 2fr 1fr 1fr 1fr;
        text-align: left;
    }

    .cookie-popup {
        left: unset;
        right: 20px;
        width: 400px;
    }
}

@media (min-width: 1024px) {
    .nav {
        display: block;
    }

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

    .nav__link {
        color: var(--text-muted);
        font-weight: 500;
        position: relative;
    }

    .nav__link:hover {
        color: #fff;
    }

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

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

    .burger,
    .mobile-menu {
        display: none;
    }

    .features__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .services__grid {
        grid-template-columns: repeat(2, 1fr);
        /* Masonry-like look with varying heights usually needs JS or flex col, but grid 2 fits requests */
    }

    .reviews__grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .contacts__wrapper {
        grid-template-columns: 1fr 1fr;
        align-items: center;
    }
}