/* CSS Variables & Theme */
:root {
    --bg-color: #0f172a;
    --text-color: #f1f5f9;
    --primary-color: #38bdf8;
    --primary-hover: #0ea5e9;
    --secondary-color: #818cf8;
    --accent-color: #f472b6;
    --card-bg: #1e293b;
    --overlay-color: rgba(15, 23, 42, 0.85);

    --font-main: 'Outfit', sans-serif;

    --container-width: 1200px;
    --header-height: 80px;
    --border-radius: 16px;
    --transition: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-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;
}

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

/* Utility Classes */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

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

.section {
    padding: 80px 0;
}

.section--alt {
    background-color: #162032;
}

.section__title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section__subtitle {
    font-size: 1.1rem;
    color: #94a3b8;
    margin-bottom: 50px;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.btn--primary {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: #fff;
    box-shadow: 0 4px 15px rgba(56, 189, 248, 0.4);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(56, 189, 248, 0.6);
}

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

.btn--secondary:hover {
    background: rgba(56, 189, 248, 0.1);
}

.btn--outline {
    border: 1px solid #fff;
    background: transparent;
    color: #fff;
}

.btn--full {
    width: 100%;
    text-align: center;
}

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

/* Header */
.header {
    width: 100%;
    height: var(--header-height);
    position: fixed;
    top: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

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

.logo__text {
    background: linear-gradient(90deg, #fff, var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

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

.burger {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
}

.burger span {
    display: block;
    width: 25px;
    height: 2px;
    background-color: #fff;
    transition: var(--transition);
}

/* Mobile Menu */
@media (max-width: 1024px) {
    .burger {
        display: flex;
    }

    .nav {
        position: fixed;
        top: var(--header-height);
        right: -100%;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background-color: var(--bg-color);
        padding: 40px;
        transition: var(--transition);
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .nav.active {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        align-items: center;
        gap: 40px;
        font-size: 1.5rem;
    }

    .burger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 6px);
    }

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

    .burger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -6px);
    }
}

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

.hero__overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle, rgba(15, 23, 42, 0.7) 0%, var(--bg-color) 100%);
}

.hero__container {
    position: relative;
    z-index: 1;
}

.hero__content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid var(--primary-color);
    padding: 6px 16px;
    border-radius: 30px;
    margin-bottom: 24px;
    font-size: 0.9rem;
    color: var(--primary-color);
}

.hero__title {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero__subtitle {
    font-size: 1.2rem;
    color: #cbd5e1;
    margin-bottom: 40px;
}

.hero__actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    justify-content: center;
}

@media (max-width: 768px) {
    .hero__title {
        font-size: 2.5rem;
    }

    .hero {
        background-position: center left;
    }

    .hero__overlay {
        background: rgba(15, 23, 42, 0.8);
    }
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: 30px;
}

.features__grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.services__grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

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

.card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

/* Feature Card */
.feature-card__icon {
    width: 60px;
    height: 60px;
    background: rgba(56, 189, 248, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.feature-card__title {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.feature-card__text {
    color: #94a3b8;
    font-size: 0.95rem;
}

/* Service Card */
.service-card {
    padding: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

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

.service-card:hover .service-card__img {
    transform: scale(1.05);
}

.service-card__content {
    padding: 25px;
    flex-grow: 1;
}

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

.service-card--wide {
    grid-column: span 1;
}

@media (min-width: 1024px) {
    .service-card--wide {
        grid-column: span 2;
    }
}

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

.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;
    font-weight: 600;
}

.review-card__stars {
    color: #fbbf24;
}

.review-card__text {
    font-style: italic;
    color: #cbd5e1;
}

/* Contacts */
.contacts__wrapper {
    display: flex;
    flex-wrap: wrap;
    /* Allow wrapping for mobile */
    gap: 50px;
    justify-content: space-between;
}

.contacts__info {
    flex: 1;
    min-width: 300px;
}

.contacts__title {
    font-size: 2rem;
    margin-bottom: 20px;
}

.contacts__desc {
    margin-bottom: 30px;
    color: #94a3b8;
}

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

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

.contacts__form-wrapper {
    flex: 1;
    min-width: 300px;
    background: var(--card-bg);
    padding: 40px;
    border-radius: var(--border-radius);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.form__group {
    margin-bottom: 20px;
}

.form__input {
    width: 100%;
    padding: 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #fff;
    font-size: 1rem;
    font-family: inherit;
}

.form__input:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.08);
    /* improved visual feedback */
}

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

.captcha-group label {
    font-weight: 700;
    font-size: 1.2rem;
    min-width: 80px;
}

/* Form Message */
.form-message {
    margin-top: 15px;
    text-align: center;
    font-weight: 600;
}

.form-message.success {
    color: #4ade80;
}

.form-message.error {
    color: #f87171;
}

/* Footer */
.footer {
    background: #020617;
    padding: 60px 0 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.logo--small {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.footer__desc {
    color: #94a3b8;
    font-size: 0.9rem;
    max-width: 250px;
}

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

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

.footer__links a {
    color: #94a3b8;
    font-size: 0.95rem;
}

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

.footer__bottom {
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: #64748b;
    font-size: 0.85rem;
}

/* Cookie Popup */
.cookie-popup {
    position: fixed;
    bottom: -100px;
    left: 20px;
    right: 20px;
    max-width: 400px;
    background: var(--card-bg);
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    z-index: 2000;
    border: 1px solid var(--primary-color);
    transition: bottom 0.5s ease;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.cookie-popup.show {
    bottom: 20px;
}

.cookie-popup p {
    font-size: 0.9rem;
    color: #cbd5e1;
}

.cookie-popup a {
    color: var(--primary-color);
    text-decoration: underline;
}

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

/* Modals */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    z-index: 3000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal {
    background: var(--card-bg);
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    border-radius: 16px;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
}

.modal__close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    color: #fff;
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
    z-index: 10;
}

.modal__content {
    padding: 30px;
    overflow-y: auto;
    font-size: 0.95rem;
    color: #cbd5e1;
}

.modal__content h3 {
    color: #fff;
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.modal__content h4 {
    color: #fff;
    margin-top: 20px;
    margin-bottom: 10px;
}

.modal__content p {
    margin-bottom: 10px;
}

.modal__content ul {
    list-style: disc;
    padding-left: 20px;
    margin-bottom: 10px;
}