:root {
    --color-primary: #1e90ff;
    --color-primary-dark: #1565c0;
    --color-secondary: #00bcd4;
    --color-accent: #00e5ff;

    --color-bg-dark: #0a0e1a;
    --color-bg-darker: #060911;
    --color-bg-card: #0f1420;
    --color-bg-card-hover: #14182a;

    --color-text-primary: #ffffff;
    --color-text-secondary: #b0b8c8;
    --color-text-muted: #6b7280;

    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-light: rgba(255, 255, 255, 0.12);

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;

    --border-radius: 12px;
    --border-radius-lg: 16px;
}

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

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

body {
    font-family: var(--font-family);
    background-color: var(--color-bg-dark);
    color: var(--color-text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
}

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

a {
    text-decoration: none;
    color: inherit;
}

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    text-align: center;
    white-space: nowrap;
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(30, 144, 255, 0.35);
}

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

.btn--secondary:hover {
    border-color: var(--color-primary);
    background: rgba(30, 144, 255, 0.1);
}

.btn--large {
    padding: 1rem 2.5rem;
    font-size: 1rem;
}

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

.section {
    padding: var(--spacing-2xl) 0;
}

.section__header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section__subtitle {
    display: inline-block;
    color: var(--color-primary);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: var(--spacing-sm);
}

.section__title {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section__description {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .section {
        padding: var(--spacing-xl) 0;
    }

    .section__title {
        font-size: 1.875rem;
    }
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 14, 26, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(10, 14, 26, 0.95);
    box-shadow: var(--shadow-md);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.nav__logo img {
    height: 50px;
    width: auto;
}

.nav__logo-img {
    height: 180px;
    width: auto;
}

@media (max-width: 768px) {
    .nav__logo-img {
        height: 120px;
    }
}

.nav__menu {
    display: flex;
    align-items: center;
}

.nav__list {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    list-style: none;
}

.nav__link {
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: 0.9375rem;
    transition: var(--transition);
    position: relative;
}

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

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: var(--transition);
}

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

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

.nav__toggle,
.nav__close {
    display: none;
    cursor: pointer;
    color: var(--color-text-primary);
}

@media (max-width: 968px) {
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--color-bg-darker);
        padding: var(--spacing-xl) var(--spacing-md);
        transition: var(--transition);
        border-left: 1px solid var(--color-border);
        flex-direction: column;
        align-items: flex-start;
    }

    .nav__menu.show-menu {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
        gap: var(--spacing-md);
    }

    .nav__item {
        width: 100%;
    }

    .nav__link {
        display: block;
        padding: var(--spacing-xs) 0;
    }

    .nav__toggle,
    .nav__close {
        display: block;
    }

    .nav__close {
        position: absolute;
        top: var(--spacing-md);
        right: var(--spacing-md);
    }
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 80px;
    background: radial-gradient(ellipse at top, rgba(30, 144, 255, 0.15) 0%, transparent 70%);
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero__content {
    animation: fadeInUp 0.8s ease-out;
}

.hero__title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__description {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.hero__buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.hero__image {
    position: relative;
    animation: fadeInRight 0.8s ease-out;
}

.hero__image img {
    width: 100%;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.hero__scroll {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
}

.scroll-down {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-muted);
    font-size: 0.875rem;
    font-weight: 500;
    animation: bounce 2s infinite;
}

.scroll-down svg {
    color: var(--color-primary);
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@media (max-width: 968px) {
    .hero {
        min-height: auto;
        padding: calc(80px + var(--spacing-xl)) 0 var(--spacing-xl);
    }

    .hero__container {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .hero__title {
        font-size: 2.5rem;
    }

    .hero__description {
        font-size: 1.125rem;
    }

    .hero__buttons {
        flex-direction: column;
    }

    .hero__buttons .btn {
        width: 100%;
    }

    .hero__scroll {
        display: none;
    }
}

.about__container {
    max-width: 1000px;
}

.about__content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.about__text {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.about__description {
    color: var(--color-text-secondary);
    font-size: 1.0625rem;
    line-height: 1.8;
}

.about__image {
    position: relative;
}

.about__image::before {
    content: '';
    position: absolute;
    top: -20px;
    right: -20px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--color-primary);
    border-radius: var(--border-radius-lg);
    z-index: -1;
}

.about__image img {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

@media (max-width: 768px) {
    .about__content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .about__image::before {
        display: none;
    }
}

.features__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.feature__card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    transition: var(--transition);
}

.feature__card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature__icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(30, 144, 255, 0.2) 0%, rgba(21, 101, 192, 0.2) 100%);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.feature__icon svg {
    color: var(--color-primary);
}

.feature__title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.feature__description {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

@media (max-width: 768px) {
    .features__grid {
        grid-template-columns: 1fr;
    }
}

.mobile-control {
    background: linear-gradient(135deg, var(--color-bg-card) 0%, var(--color-bg-darker) 100%);
}

.mobile-control__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.mobile-control__description {
    color: var(--color-text-secondary);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.mobile-control__features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.mobile-control__feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-secondary);
    font-size: 1.0625rem;
}

.mobile-control__feature svg {
    color: var(--color-primary);
    flex-shrink: 0;
}

.mobile-control__image {
    position: relative;
}

.mobile-control__image img {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

@media (max-width: 968px) {
    .mobile-control__container {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .mobile-control__container > *:last-child {
        order: -1;
    }
}

.industries__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--spacing-md);
}

.industry__card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}

.industry__card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.industry__icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(30, 144, 255, 0.2) 0%, rgba(21, 101, 192, 0.2) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    transition: var(--transition);
}

.industry__card:hover .industry__icon {
    background: linear-gradient(135deg, rgba(30, 144, 255, 0.3) 0%, rgba(21, 101, 192, 0.3) 100%);
    transform: scale(1.1);
}

.industry__icon svg {
    color: var(--color-primary);
}

.industry__title {
    font-size: 1.125rem;
    font-weight: 600;
}

@media (max-width: 768px) {
    .industries__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-sm);
    }

    .industry__card {
        padding: var(--spacing-md);
    }

    .industry__icon {
        width: 60px;
        height: 60px;
    }

    .industry__icon svg {
        width: 32px;
        height: 32px;
    }

    .industry__title {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .industries__grid {
        grid-template-columns: 1fr;
    }
}

.contact {
    background: linear-gradient(135deg, var(--color-bg-card) 0%, var(--color-bg-darker) 100%);
}

.contact__container {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--spacing-xl);
    max-width: 1000px;
}

.contact__description {
    color: var(--color-text-secondary);
    font-size: 1.0625rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-lg);
}

.contact__info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.contact__info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-secondary);
}

.contact__info-item svg {
    color: var(--color-primary);
    flex-shrink: 0;
}

.contact__form {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
}

.form__group {
    margin-bottom: var(--spacing-md);
}

.form__label {
    display: block;
    color: var(--color-text-primary);
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
}

.form__input,
.form__textarea {
    width: 100%;
    background: var(--color-bg-darker);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    padding: 0.875rem 1rem;
    color: var(--color-text-primary);
    font-family: var(--font-family);
    font-size: 1rem;
    transition: var(--transition);
}

.form__input:focus,
.form__textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(30, 144, 255, 0.1);
}

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

.form__message {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    font-size: 0.9375rem;
    display: none;
}

.form__message.success {
    display: block;
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #22c55e;
}

.form__message.error {
    display: block;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #ef4444;
}

@media (max-width: 768px) {
    .contact__container {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

.footer {
    background: var(--color-bg-darker);
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
}

.footer__logo img {
    height: 50px;
    width: auto;
    margin-bottom: var(--spacing-sm);
}

.footer__tagline {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

.footer__title {
    color: var(--color-text-primary);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.footer__email {
    color: var(--color-primary);
    font-size: 1rem;
}

.footer__bottom {
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer__copy {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

@media (max-width: 768px) {
    .footer__content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        text-align: center;
    }
}