:root {
    --color-dark: #1a1a1a;
    --color-darker: #0f0f0f;
    --color-gray: #2a2a2a;
    --color-gray-light: #3a3a3a;
    --color-orange: #ff6b00;
    --color-orange-dark: #cc5500;
    --color-white: #ffffff;
    --color-text-light: #a8a8a8;
    --font-heading: 'Bebas Neue', sans-serif;
    --font-body: 'Roboto', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-white);
    background: var(--color-dark);
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-darker);
    border-bottom: 2px solid var(--color-gray);
    z-index: 1000;
}

.header__content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo__icon {
    width: 45px;
    height: 45px;
    color: var(--color-orange);
    flex-shrink: 0;
}

.logo__icon svg {
    width: 100%;
    height: 100%;
}

.logo__text {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.logo__main {
    display: flex;
    white-space: nowrap;
}

.logo__name,
.logo__accent {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    letter-spacing: 0.05em;
}

.logo__name {
    color: var(--color-white);
}

.logo__accent {
    color: var(--color-orange);
}

.logo__subbrand {
    font-family: var(--font-body);
    font-size: 0.75rem;
    color: var(--color-text-light);
    letter-spacing: 0.1em;
    font-weight: 300;
}

.nav {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav__link {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    color: var(--color-white);
    text-decoration: none;
    letter-spacing: 0.05em;
    position: relative;
    transition: color 0.3s ease;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-orange);
    transition: width 0.3s ease;
}

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

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

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

.header__burger span {
    width: 30px;
    height: 3px;
    background: var(--color-orange);
    transition: all 0.3s ease;
}

.header__burger.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

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

.header__burger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 74px;
    left: 0;
    right: 0;
    background: var(--color-darker);
    border-bottom: 2px solid var(--color-gray);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 999;
}

.mobile-menu.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.mobile-menu__nav {
    display: flex;
    flex-direction: column;
}

.mobile-menu__link {
    padding: 1.25rem 2rem;
    border-bottom: 1px solid var(--color-gray);
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--color-white);
    text-decoration: none;
    letter-spacing: 0.05em;
    transition: all 0.3s ease;
}

.mobile-menu__link:hover {
    color: var(--color-orange);
    background: var(--color-gray);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 6rem 0 2rem;
    margin-top: 74px;
    background: linear-gradient(135deg, var(--color-darker) 0%, var(--color-dark) 100%);
}

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(255, 107, 0, 0.03) 2px,
            rgba(255, 107, 0, 0.03) 4px
        );
    pointer-events: none;
}

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

.hero__badge {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.875rem;
    letter-spacing: 0.2em;
    color: var(--color-orange);
    padding: 0.5rem 1.25rem;
    border: 3px solid var(--color-orange);
    margin-bottom: 2rem;
}

.hero__title {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 5vw, 4rem);
    line-height: 1.15;
    margin-bottom: 1.5rem;
}

.hero__title-line {
    display: block;
}

.hero__title-line:nth-child(2) {
    font-size: clamp(1.4rem, 4.5vw, 3.5rem);
}

.hero__title-line--accent {
    color: var(--color-orange);
}

.hero__subtitle {
    font-family: var(--font-heading);
    font-size: clamp(0.875rem, 1.5vw, 1.125rem);
    color: var(--color-text-light);
    margin-bottom: 2rem;
    letter-spacing: 0.1em;
}

.hero__buttons {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-family: var(--font-heading);
    font-size: 1.125rem;
    letter-spacing: 0.1em;
    border: 3px solid transparent;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn--primary {
    background: var(--color-orange);
    color: var(--color-white);
    border-color: var(--color-orange);
}

.btn--primary:hover {
    background: var(--color-orange-dark);
    border-color: var(--color-orange-dark);
    transform: translateY(-2px);
}

.btn--secondary {
    background: transparent;
    color: var(--color-white);
    border-color: var(--color-white);
}

.btn--secondary:hover {
    background: var(--color-white);
    color: var(--color-dark);
}

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

.hero__stats {
    position: relative;
    padding: 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    padding: 3rem;
    border: 3px solid var(--color-orange);
}

.stat-box {
    text-align: center;
    padding: 2rem;
    background: var(--color-gray);
    border: 3px solid var(--color-orange);
    transition: all 0.3s ease;
}

.stat-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(255, 107, 0, 0.3);
}

.stat-box__number {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    color: var(--color-orange);
    margin-bottom: 0.5rem;
}

.stat-box__label {
    font-family: var(--font-heading);
    font-size: 0.875rem;
    letter-spacing: 0.15em;
    color: var(--color-white);
    margin-bottom: 0.5rem;
}

.stat-box__desc {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

/* Section Header */
.section-header {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.section-number {
    font-family: var(--font-heading);
    font-size: 4rem;
    color: var(--color-orange);
    opacity: 0.8;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3.5rem);
    letter-spacing: 0.05em;
}

.section-description {
    font-size: 1.125rem;
    color: var(--color-text-light);
    margin-bottom: 3rem;
    line-height: 1.6;
}

/* About Section */
.about {
    padding: 6rem 0;
    background: var(--color-darker);
}

.about__content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    padding: 3rem;
    border: 3px solid var(--color-orange);
}

.about__text {
    padding: 2rem;
    border: 3px solid var(--color-orange);
}

.about__text .lead {
    font-size: 1.25rem;
    color: var(--color-white);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.about__text p {
    font-size: 1rem;
    color: var(--color-text-light);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about__text p:last-child {
    margin-bottom: 0;
}

.about__features {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.about__features-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
    color: var(--color-orange);
}

.feature-box {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--color-gray);
    border: 2px solid var(--color-orange);
    transition: all 0.3s ease;
}

.feature-box:hover {
    border-color: var(--color-orange);
    box-shadow: 0 5px 20px rgba(255, 107, 0, 0.2);
}

.feature-box__icon {
    font-size: 2rem;
    color: var(--color-orange);
    flex-shrink: 0;
}

.feature-box__content h4 {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.feature-box__content p {
    font-size: 0.875rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* Products Section */
.products {
    padding: 6rem 0;
    background: var(--color-dark);
}

.products__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.product-item {
    padding: 2.5rem;
    background: var(--color-gray);
    border: 3px solid var(--color-orange);
    transition: all 0.3s ease;
}

.product-item:hover {
    background: var(--color-gray-light);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(255, 107, 0, 0.3);
}

.product-item__number {
    font-family: var(--font-heading);
    font-size: 3rem;
    color: var(--color-orange);
    opacity: 0.8;
    margin-bottom: 1rem;
}

.product-item__title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.product-item__desc {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.product-item__features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.product-item__features li {
    font-size: 0.875rem;
    color: var(--color-text-light);
    padding-left: 1.5rem;
    position: relative;
}

.product-item__features li::before {
    content: '■';
    position: absolute;
    left: 0;
    color: var(--color-orange);
    font-size: 0.75rem;
}

/* Advantages Section */
.advantages {
    padding: 6rem 0;
    background: var(--color-darker);
}

.advantages__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.advantage-card {
    padding: 2.5rem;
    background: var(--color-gray);
    border: 3px solid var(--color-orange);
    position: relative;
}

.advantage-card__number {
    font-family: var(--font-heading);
    font-size: 3rem;
    color: var(--color-orange);
    opacity: 0.8;
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
}

.advantage-card__title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.advantage-card__text {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* Contact Section */
.contact {
    padding: 6rem 0;
    background: var(--color-dark);
}

.contact__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact__items {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-box {
    padding: 1.5rem;
    background: var(--color-gray);
    border: 3px solid var(--color-orange);
    transition: all 0.3s ease;
}

.contact-box:hover {
    box-shadow: 0 5px 20px rgba(255, 107, 0, 0.2);
}

.contact-box__label {
    font-family: var(--font-heading);
    font-size: 0.875rem;
    letter-spacing: 0.15em;
    color: var(--color-orange);
    margin-bottom: 0.5rem;
}

.contact-box__value {
    font-size: 1.125rem;
    color: var(--color-white);
}

/* Form */
.contact__form {
    background: var(--color-gray);
    padding: 2.5rem;
    border: 3px solid var(--color-orange);
}

.contact__form-title {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    letter-spacing: 0.1em;
    margin-bottom: 2rem;
    color: var(--color-orange);
}

.form__group {
    margin-bottom: 1.5rem;
}

.form__label {
    display: block;
    font-family: var(--font-heading);
    font-size: 0.875rem;
    letter-spacing: 0.1em;
    color: var(--color-white);
    margin-bottom: 0.5rem;
}

.form__input {
    width: 100%;
    padding: 1rem;
    background: var(--color-dark);
    border: 2px solid var(--color-gray-light);
    color: var(--color-white);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form__input::placeholder {
    color: var(--color-text-light);
}

.form__input:focus {
    outline: none;
    border-color: var(--color-orange);
}

.form__textarea {
    resize: vertical;
    min-height: 120px;
}

.form__result {
    margin-top: 1rem;
    padding: 1rem;
    font-size: 0.875rem;
    display: none;
    border: 2px solid;
}

.form__result.success {
    display: block;
    background: var(--color-orange);
    color: var(--color-white);
    border-color: var(--color-orange);
}

.form__result.error {
    display: block;
    background: var(--color-gray-light);
    color: var(--color-white);
    border-color: var(--color-orange);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Footer */
.footer {
    background: var(--color-darker);
    padding: 4rem 0 2rem;
    border-top: 3px solid var(--color-orange);
}

.footer__content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
    padding-bottom: 3rem;
    border-bottom: 2px solid var(--color-gray);
}

.footer__logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.footer__logo .logo__icon {
    width: 40px;
    height: 40px;
    color: var(--color-orange);
}

.footer__logo .logo__icon svg {
    width: 100%;
    height: 100%;
}

.footer__logo .logo__name,
.footer__logo .logo__accent {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    letter-spacing: 0.05em;
}

.footer__logo .logo__name {
    color: var(--color-white);
}

.footer__logo .logo__accent {
    color: var(--color-orange);
}

.footer__text {
    font-size: 0.875rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

.footer__title {
    font-family: var(--font-heading);
    font-size: 1rem;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    list-style: none;
}

.footer__links li {
    font-size: 0.875rem;
    color: var(--color-text-light);
}

.footer__links a {
    color: var(--color-text-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer__bottom {
    text-align: center;
}

.footer__bottom p {
    font-family: var(--font-heading);
    font-size: 0.875rem;
    color: var(--color-text-light);
    letter-spacing: 0.1em;
}

/* Responsive */
@media (max-width: 968px) {
    .header__nav {
        display: none;
    }

    .header__burger {
        display: flex;
    }

    .hero__buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

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

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

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

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

@media (max-width: 640px) {
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .section-number {
        font-size: 2.5rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        padding: 1.5rem;
    }

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

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

    .contact__form {
        padding: 1.5rem;
    }

    .about__content {
        padding: 1.5rem;
    }

    .about__text {
        padding: 1.5rem;
    }
}