/* Basic Reset & Box Sizing */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* CSS Variables */
:root {
    --color-background: #000000;
    --color-text: #e0e0e0;
    --color-heading: #ffffff;
    --color-primary: #111111;
    --color-accent: #ffffff;
    --color-accent-hover: #bbbbbb;
    --color-accent-orange: #E67E22;
    --color-border: #444444;
    --color-white: #ffffff;
    --color-black: #000000;
    --color-overlay: rgba(0, 0, 0, 0.2);

    --font-primary: 'Montserrat', sans-serif;
    --font-secondary: 'Open Sans', sans-serif;
    --font-size-base: 16px;
    --font-size-h1: 2.8rem;
    --font-size-h2: 1.8rem;
    --line-height-base: 1.7;

    --container-width: 1200px;
    --spacing-unit: 1rem;
    --header-height: 80px;
}

/* Base Body Styles */
body {
    font-family: var(--font-secondary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Links */
a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover, a:focus {
    color: var(--color-accent-orange);
    text-decoration: none;
}

/* Headings */
h1, h2, h3 {
    font-family: var(--font-primary);
    font-weight: 300;
    line-height: 1.3;
    color: var(--color-heading);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

h1 { font-size: var(--font-size-h1); }
h2 { font-size: var(--font-size-h2); text-align: center; margin-bottom: calc(var(--spacing-unit) * 4); }
h3 { font-size: 1.4rem; font-weight: 400; }

/* Container */
.container {
    width: 90%;
    max-width: var(--container-width);
    margin-left: auto;
    margin-right: auto;
}

/* General Content Section & Animation Setup */
.content-section {
    padding: calc(var(--spacing-unit) * 6) 0;
}

.fade-in-section {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.fade-in-section.is-visible {
    opacity: 1;
    transform: translateY(0);
}


/* Header Styles */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    height: var(--header-height);
    background-color: transparent;
    transition: background-color 0.3s ease;
    padding: 0 var(--spacing-unit);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    position: relative;
}

.logo img {
    height: 50px; /* Было 35px */
    width: auto;
    display: block;
}

.nav-list {
    list-style: none;
    display: flex;
    gap: calc(var(--spacing-unit) * 2);
}

.nav-link {
    font-family: var(--font-primary);
    font-weight: 300;
    font-size: 0.95rem;
    text-decoration: none;
    color: var(--color-text);
    padding: 5px 0;
    position: relative;
    transition: color 0.3s ease;
    letter-spacing: 0.5px;
}

.nav-link:hover, .nav-link.active {
    color: var(--color-accent-orange);
    text-decoration: none;
}
.nav-link::after { content: none; }

/* Language Switcher Styles */
.lang-switcher {
    display: flex;
    align-items: center;
    gap: 5px;
    margin-left: 20px;
}
.lang-btn {
    background: none;
    border: none;
    color: var(--color-text);
    cursor: pointer;
    font-family: var(--font-primary);
    font-size: 0.9rem;
    font-weight: 300;
    opacity: 0.7;
    transition: opacity 0.3s ease, color 0.3s ease;
    padding: 5px;
}
.lang-btn.active, .lang-btn:hover {
    color: var(--color-white);
    opacity: 1;
}
.lang-switcher span {
    color: var(--color-text);
    opacity: 0.7;
    font-size: 0.9rem;
}

/* Mobile Menu Toggle */
.menu-toggle { display: none; }

@media (max-width: 768px) {
    .nav-list {
        position: fixed;
        top: 0;
        right: 0;
        width: 100%;
        height: 100vh;
        background-color: var(--color-black);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transform: translateX(100%);
        transition: transform 0.3s ease-in-out;
    }
    .main-nav.is-open .nav-list {
        transform: translateX(0);
    }
    .nav-link {
        color: var(--color-white);
        font-size: 1.5rem;
    }
    .menu-toggle { display: block; }
    .lang-switcher {
        position: absolute;
        right: 50px;
    }
}


/* Hero Section */
.hero-section {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--color-white);
    overflow: hidden;
}

.hero-section video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    z-index: -100;
    transform: translate(-50%, -50%);
    background-size: cover;
}

.mobile-video {
    display: none; 
}
@media (max-width: 768px) {
    .desktop-video {
        display: none; 
    }
    .mobile-video {
        display: block; 
    }
}


.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-overlay);
    z-index: -50;
}

.hero-content {
    position: relative;
    z-index: 1;
}


/* Intro Section */
.intro-section {
    padding: calc(var(--spacing-unit) * 6) 0;
    text-align: center;
    font-size: 1.3rem;
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto;
    color: var(--color-text);
}

/* About Us Section */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--spacing-unit) * 5);
    align-items: start;
}
.about-text p {
    margin-bottom: calc(var(--spacing-unit) * 1.5);
    color: var(--color-text);
}
.achievements {
    display: flex;
    gap: calc(var(--spacing-unit) * 2);
    margin-top: calc(var(--spacing-unit) * 3);
    margin-bottom: calc(var(--spacing-unit) * 3);
    font-weight: 400;
    color: var(--color-text);
}
.achievements strong {
    display: block;
    font-size: 2rem;
    font-weight: 300;
    color: var(--color-white);
    margin-bottom: 5px;
}
.about-image img {
    max-width: 100%;
    height: auto;
    display: block;
}
@media (max-width: 768px) {
    .about-content { grid-template-columns: 1fr; }
    .about-image { order: -1; margin-bottom: calc(var(--spacing-unit) * 3); }
}

/* Showreel Section */
.showreel-section {
    text-align: center;
}
.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    max-width: 100%;
    background: #111;
    margin: calc(var(--spacing-unit)*2) auto;
    border: 1px solid var(--color-border);
}
.video-wrapper iframe,
.video-wrapper video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* Portfolio Section (Homepage) */
.portfolio-grid-main {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: calc(var(--spacing-unit) * 1.5);
}

.portfolio-item-main {
    position: relative;
    overflow: hidden;
    display: block;
}

.portfolio-item-main video {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.portfolio-item-main:hover video {
    transform: scale(1.05);
}

.item-overlay-main {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0,0,0,0.5);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.portfolio-item-main:hover .item-overlay-main {
    opacity: 1;
}

.item-overlay-main h3 {
    margin: 0;
    font-size: 1.8rem;
    font-weight: 400;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 2px;
}

/* Portfolio Detail Page Styles */
.portfolio-detail-header {
    text-align: center;
    padding: calc(var(--header-height) + var(--spacing-unit) * 4) 0 calc(var(--spacing-unit) * 4);
    border-bottom: 1px solid var(--color-border);
}

.portfolio-detail-header h1 {
    margin-bottom: calc(var(--spacing-unit) * 3);
}

.portfolio-nav {
    display: flex;
    justify-content: center;
    gap: calc(var(--spacing-unit) * 3);
}

.portfolio-nav a {
    font-family: var(--font-primary);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-text);
    opacity: 0.6;
    transition: opacity 0.3s ease, color 0.3s ease;
}

.portfolio-nav a:hover {
    opacity: 1;
    color: var(--color-white);
}

.portfolio-nav a.active {
    opacity: 1;
    color: var(--color-accent-orange);
    pointer-events: none;
}

.portfolio-detail-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: calc(var(--spacing-unit) * 1.5);
}

.portfolio-detail-item {
    position: relative;
    overflow: hidden;
}

.portfolio-detail-item video {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    transition: opacity 0.3s ease;
}

.portfolio-detail-item:hover video {
    opacity: 0.85;
}

/* Clients Section */
.clients-section {
    text-align: center;
    padding: calc(var(--spacing-unit) * 5) 0;
}
.client-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: calc(var(--spacing-unit) * 4);
    margin-top: var(--spacing-unit);
}

.client-logo {
    max-height: 90px;
    max-width: 280px;
    object-fit: contain;
    opacity: 0.7;
    transition: opacity 0.3s ease;
}
.client-logo:hover {
    opacity: 1;
}

/* Contact Section */
.contact-intro {
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 4);
    font-size: 1.1rem;
    color: var(--color-text);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: calc(var(--spacing-unit) * 5);
}
@media (max-width: 992px) {
    .contact-wrapper { grid-template-columns: 1fr; }
    .contact-info-container { margin-top: calc(var(--spacing-unit) * 4);}
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 400;
    font-size: 0.85rem;
    color: var(--color-text);
    text-transform: uppercase;
    letter-spacing: 1px;
}
.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
    width: 100%;
    padding: 14px;
    border: 1px solid var(--color-border);
    border-radius: 0;
    font-family: inherit;
    font-size: 1rem;
    background-color: #111111;
    color: var(--color-text);
    transition: border-color 0.3s ease, background-color 0.3s ease;
}
.form-group textarea { resize: vertical; }

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent-orange);
    background-color: #222222;
    box-shadow: none;
}


/* Footer */
.site-footer-bottom {
    background-color: var(--color-black);
    color: #666666;
    padding: calc(var(--spacing-unit) * 2) 0;
    font-size: 0.8rem;
    text-align: center;
    border-top: 1px solid var(--color-border);
}


/* Responsive Adjustments */
@media (max-width: 1024px) {
    :root {
        --font-size-h1: 2.2rem;
        --font-size-h2: 1.6rem;
    }
    .portfolio-grid-main, .portfolio-detail-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}


@media (max-width: 768px) {
    .portfolio-grid-main, .portfolio-detail-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-h1: 1.8rem;
        --font-size-h2: 1.4rem;
        --header-height: 65px;
    }
    .intro-section { font-size: 1.1rem; padding: calc(var(--spacing-unit) * 4) 0; }
}