:root {
    --color-dark: #0a0a0a;
    --color-darker: #050505;
    --color-gold: #c9a96e;
    --color-gold-light: #e0c78a;
    --color-white: #ffffff;
    --color-gray: #888888;
    --color-gray-light: #cccccc;
    --font-primary: 'Montserrat', sans-serif;
    --font-secondary: 'Playfair Display', serif;
    --transition-smooth: cubic-bezier(0.76, 0, 0.24, 1);
    --transition-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

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

/* Прелоадер */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-darker);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.8s var(--transition-smooth), visibility 0.8s var(--transition-smooth);
}

.preloader--hidden {
    opacity: 0;
    visibility: hidden;
}

.preloader__logo {
    position: relative;
    width: 100px;
    height: 100px;
}

.preloader__svg {
    width: 100%;
    height: 100%;
    animation: rotate 2s linear infinite;
}

.preloader__circle {
    fill: none;
    stroke: var(--color-gold);
    stroke-width: 2;
    stroke-dasharray: 283;
    stroke-dashoffset: 283;
    animation: drawCircle 1.5s var(--transition-smooth) forwards;
}

.preloader__text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: var(--font-secondary);
    font-size: 2.5rem;
    color: var(--color-gold);
    animation: fadeInText 0.8s var(--transition-smooth) 1s forwards;
    opacity: 0;
}

@keyframes rotate {
    100% { transform: rotate(360deg); }
}

@keyframes drawCircle {
    to { stroke-dashoffset: 0; }
}

@keyframes fadeInText {
    to { opacity: 1; }
}

/* Навигация */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 2rem 4rem;
    z-index: 1000;
    transition: all 0.4s var(--transition-smooth);
    mix-blend-mode: difference;
}

.nav--scrolled {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    padding: 1.5rem 4rem;
    mix-blend-mode: normal;
}

.nav__container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
}

.nav__logo {
    text-decoration: none;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-white);
    letter-spacing: 2px;
    position: relative;
}

.nav__logo-text {
    position: relative;
    z-index: 1;
}

.nav__logo-dot {
    color: var(--color-gold);
}

.nav__menu {
    display: flex;
    gap: 3rem;
}

.nav__link {
    color: var(--color-white);
    text-decoration: none;
    font-size: 0.9rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    position: relative;
    padding: 0.5rem 0;
    transition: color 0.3s var(--transition-smooth);
}

.nav__link::before {
    content: attr(data-text);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scaleY(0);
    color: var(--color-gold);
    transition: transform 0.3s var(--transition-smooth);
    transform-origin: top;
}

.nav__link:hover::before {
    transform: translate(-50%, -50%) scaleY(1);
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--color-gold);
    transform: scaleX(0);
    transition: transform 0.3s var(--transition-smooth);
}

.nav__link:hover::after {
    transform: scaleX(1);
}

/* Hero секция */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero__video-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero__video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(10,10,10,0.8) 0%, rgba(10,10,10,0.4) 50%, rgba(10,10,10,0.8) 100%);
}

.hero__content {
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 4rem;
}

.hero__badge {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    font-size: 0.9rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--color-gold);
}

.hero__badge-line {
    width: 50px;
    height: 1px;
    background: var(--color-gold);
}

.hero__title {
    font-family: var(--font-secondary);
    font-size: 5rem;
    line-height: 1.1;
    margin-bottom: 2rem;
}

.hero__title-line {
    display: block;
}

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

.hero__description {
    font-size: 1.2rem;
    color: var(--color-gray-light);
    max-width: 500px;
    margin-bottom: 3rem;
    line-height: 1.8;
}

/* Кнопки */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    padding: 1.2rem 2.5rem;
    text-decoration: none;
    font-size: 0.9rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    position: relative;
    overflow: hidden;
    transition: all 0.4s var(--transition-smooth);
}

.btn--primary {
    background: transparent;
    color: var(--color-white);
    border: 1px solid var(--color-gold);
}

.btn--primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--color-gold);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s var(--transition-smooth);
    z-index: -1;
}

.btn--primary:hover::before {
    transform: scaleX(1);
    transform-origin: left;
}

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

.btn__icon {
    transition: transform 0.3s var(--transition-smooth);
}

.btn:hover .btn__icon {
    transform: translateX(5px);
}

/* Скролл индикатор */
.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    z-index: 1;
}

.scroll-indicator__mouse {
    width: 25px;
    height: 40px;
    border: 2px solid var(--color-white);
    border-radius: 15px;
    position: relative;
}

.scroll-indicator__wheel {
    width: 3px;
    height: 8px;
    background: var(--color-gold);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

.scroll-indicator__text {
    font-size: 0.7rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--color-gray);
}

@keyframes scroll {
    0% { opacity: 1; transform: translateX(-50%) translateY(0); }
    100% { opacity: 0; transform: translateX(-50%) translateY(15px); }
}

/* Секция проектов */
.projects {
    padding: 8rem 0;
    background: var(--color-darker);
    position: relative;
}

.projects__container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 4rem;
}

.section-header {
    margin-bottom: 6rem;
}

.section-header__number {
    font-size: 0.8rem;
    letter-spacing: 4px;
    color: var(--color-gold);
    display: block;
    margin-bottom: 1rem;
}

.section-header__title {
    font-family: var(--font-secondary);
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.section-header__description {
    color: var(--color-gray);
    font-size: 1.1rem;
    max-width: 400px;
}

.projects__grid {
    display: flex;
    flex-direction: column;
    gap: 8rem;
}

/* Карточка проекта */
.project-card {
    position: relative;
}

.project-card__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.project-card--reverse .project-card__inner {
    direction: rtl;
}

.project-card--reverse .project-card__content {
    direction: ltr;
}

.project-card__image-wrapper {
    position: relative;
    overflow: hidden;
    border-radius: 4px;
}

.project-card__image {
    width: 100%;
    height: 500px;
    background-size: cover;
    background-position: center;
    transition: transform 0.6s var(--transition-smooth);
}

.project-card:hover .project-card__image {
    transform: scale(1.05);
}

.project-card__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(201,169,110,0.3), transparent);
    opacity: 0;
    transition: opacity 0.4s var(--transition-smooth);
}

.project-card:hover .project-card__overlay {
    opacity: 1;
}

.project-card__number {
    position: absolute;
    top: 2rem;
    right: 2rem;
    font-size: 4rem;
    font-weight: 700;
    color: rgba(255,255,255,0.1);
    font-family: var(--font-secondary);
}

.project-card__content {
    position: relative;
}

.project-card__title {
    font-family: var(--font-secondary);
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--color-gold);
}

.project-card__description {
    color: var(--color-gray);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.project-card__tags {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.tag {
    padding: 0.5rem 1rem;
    border: 1px solid var(--color-gold);
    font-size: 0.75rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-gold);
    border-radius: 2px;
}

.project-card__link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-white);
    text-decoration: none;
    font-size: 0.9rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    transition: color 0.3s var(--transition-smooth);
}

.project-card__link:hover {
    color: var(--color-gold);
}

.project-card__arrow {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    transition: transform 0.3s var(--transition-smooth);
}

.project-card__link:hover .project-card__arrow {
    transform: translateX(5px);
}

/* Секция About */
.about {
    position: relative;
    padding: 10rem 0;
    overflow: hidden;
}

.about__video-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.about__video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about__video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(5,5,5,0.9);
}

.about__container {
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 4rem;
}

.section-header--light .section-header__title {
    color: var(--color-white);
}

.about__content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
}

.about__paragraph {
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: 2rem;
    color: var(--color-gray-light);
}

.about__stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.stat {
    text-align: center;
    padding: 2rem;
    border: 1px solid rgba(201,169,110,0.3);
    border-radius: 4px;
}

.stat__number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-gold);
    margin-bottom: 0.5rem;
}

.stat__label {
    font-size: 0.8rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-gray);
}

/* Контакты */
.contact {
    padding: 8rem 0;
    background: var(--color-darker);
}

.contact__container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 4rem;
}

.contact__content {
    margin-top: 4rem;
}

.contact__link {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    color: var(--color-gold);
    text-decoration: none;
    font-size: 1.5rem;
    letter-spacing: 1px;
    transition: all 0.3s var(--transition-smooth);
    padding: 1rem 0;
    border-bottom: 1px solid transparent;
}

.contact__link:hover {
    border-bottom-color: var(--color-gold);
}

.contact__link-icon {
    font-size: 2rem;
}

/* Футер */
.footer {
    padding: 3rem 0;
    background: var(--color-darker);
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer__container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer__logo {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 2px;
}

.footer__copy {
    color: var(--color-gray);
    font-size: 0.8rem;
}

/* Анимации reveal */
.reveal-text {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s var(--transition-smooth);
}

.reveal-text--visible {
    opacity: 1;
    transform: translateY(0);
}

/* Параллакс элементы */
.parallax-element {
    will-change: transform;
}

/* Адаптивность */
@media (max-width: 1024px) {
    .hero__title {
        font-size: 3.5rem;
    }
    
    .project-card__inner {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .about__content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .nav {
        padding: 1.5rem 2rem;
    }
    
    .projects__container,
    .about__container,
    .contact__container,
    .footer__container {
        padding: 0 2rem;
    }
}

@media (max-width: 768px) {
    .hero__title {
        font-size: 2.5rem;
    }
    
    .section-header__title {
        font-size: 2.5rem;
    }
    
    .nav__menu {
        display: none;
    }
    
    .hero__content {
        padding: 0 2rem;
    }
    
    .about__stats {
        grid-template-columns: 1fr;
    }
}