:root {
    --bg-dark: #0d0d0d;
    --bg-gradient: radial-gradient(circle at 30% 30%, #121212 0%, #0d0d0d 60%, #000 100%);
    --accent: #00e6ff;
    --accent-secondary: #ff00e6;
    --text: #f1f1f1;
    --text-muted: #9e9e9e;
    --border-radius: 14px;
    --button-bg: #800080;
    --button-text: #ffffff;
    --button-border: #a020f0;
    --button-hover: #9400d3;
    --light-color: rgba(255, 255, 255, 0.3);
    --light-size: 150px;
}

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

body {
    font-family: 'Google Sans', sans-serif;
    background: var(--bg-gradient);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    position: relative;
    z-index: 100;
    background: linear-gradient(to bottom, rgba(13, 13, 13, 0.8) 0%, rgba(13, 13, 13, 0) 100%);
    background-blend-mode: multiply;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.socials {
    display: flex;
    gap: 1rem;
}

.social-link {
    color: var(--text);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.3s ease;
}

.social-link:hover {
    color: var(--accent);
}

main {
    flex: 1;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.hero {
    text-align: center;
    margin-bottom: 3rem;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.features .card {
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    mix-blend-mode: screen;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(
        circle var(--light-size) at var(--mouse-x, 50%) var(--mouse-y, 50%),
        var(--light-color),
        transparent 100%
    );
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
    mix-blend-mode: screen;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.card.light-active::before {
    opacity: 1;
}

.card h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--accent);
    position: relative;
    z-index: 1;
}

.card p {
    position: relative;
    z-index: 1;
}

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

.btn-primary {
    display: inline-block;
    background: var(--accent);
    color: var(--bg-dark);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: background 0.3s ease;
}

.btn-primary:hover {
    background: var(--accent-secondary);
}

footer {
    text-align: center;
    padding: 1rem;
    background: rgba(13, 13, 13, 0.8);
    color: var(--text-muted);
}

@keyframes modalFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes modalContentFadeIn {
    from { opacity: 0; transform: translateY(-50px); }
    to { opacity: 1; transform: translateY(0); }
}

.modal {
    display: none;
    position: fixed;
    z-index: 1001;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    opacity: 0;
    transition: opacity 0.3s ease;
    align-items: center;
    justify-content: center;
}

.modal.open {
    opacity: 1;
}

.modal-content {
    background: var(--bg-dark);
    padding: 2rem;
    border-radius: var(--border-radius);
    max-width: 500px;
    width: 90%;
    position: relative;
    scrollbar-width: none;
    -ms-overflow-style: none;
    opacity: 0;
    transform: translateY(-20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.modal.open .modal-content {
    opacity: 1;
    transform: translateY(0);
}

.modal-content > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.modal.open .modal-content > * {
    opacity: 1;
    transform: translateY(0);
}

.modal.closing .hardware-grid {
    transition: none;
}

.expandable {
    cursor: pointer;
    padding: 0.5rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.expandable-content {
    display: none;
    padding-left: 1rem;
}

.expandable-content.open {
    display: block;
}

.expand-icon {
    transition: transform 0.3s ease;
}

.expandable.open .expand-icon {
    transform: rotate(-90deg);
}

@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 1rem;
    }

    .socials {
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero h1 {
        font-size: 2rem;
    }

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

    .card {
        padding: 1rem;
        border-color: rgba(255, 255, 255, 0.1);
    }

    .card h2 {
        font-size: 1.2rem;
    }

    .letter {
        color: rgba(255, 255, 255, 0.35) !important;
        text-shadow: 
            0 0 5px rgba(0, 230, 255, 0.4),
            0 0 10px rgba(255, 0, 230, 0.4) !important;
        opacity: 0.5 !important;
        transition: transform 0.3s ease !important;
    }
    
    @keyframes mobilePulse {
        0% { opacity: 0.4 !important; }
        50% { opacity: 0.6 !important; }
        100% { opacity: 0.4 !important; }
    }
    
    .letter {
        animation: float 10s infinite ease-in-out, mobilePulse 3s infinite ease-in-out !important;
        animation-delay: calc(var(--delay) * 1s) !important;
    }
    
    .letter {
        font-size: 32px;
    }
    
    .card::before {
        background: radial-gradient(
            circle 150px at var(--mouse-x, 50%) var(--mouse-y, 50%),
            rgba(255, 255, 255, 0.15),
            transparent 60%
        );
        opacity: 0;
    }
    
    .card {
        animation: none;
        box-shadow: none;
    }
    
    .modal-content {
        backdrop-filter: blur(10px);
        background: rgba(13, 13, 13, 0.7);
    }
    
    .modal-content button::before,
    .modal-close::before {
        display: none;
    }
    
    .card, .accordion-header, .modal-close, .floating-game-button {
        cursor: pointer;
        -webkit-tap-highlight-color: transparent;
    }
    
    .modal-close {
        width: 40px;
        height: 40px;
        font-size: 24px;
    }
}

.hardware-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 20px;
    width: 100%;
    margin-top: 20px;
}

.hardware-card {
    background-color: rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.hardware-card .image-container {
    width: 100%;
    height: 150px;
    overflow: hidden;
    position: relative;
    background-color: rgba(0, 0, 0, 0.2);
}

.hardware-card .image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hardware-card .header {
    padding: 10px;
    display: flex;
    align-items: center;
    background-color: rgba(0, 0, 0, 0.15);
}

.hardware-card .title {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text);
}

.hardware-card .content {
    padding: 10px;
    font-size: 0.85rem;
    color: var(--text-muted);
    flex-grow: 1;
}

@media (max-width: 1200px) {
    .hardware-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 900px) {
    .hardware-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

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

@media (max-width: 600px) {
    .hardware-grid {
        grid-template-columns: 1fr;
    }
    
    .hardware-card .image-container {
        height: 180px;
    }
}

#modal-pc .modal-content,
#modal-1 .modal-content,
#modal-2 .modal-content,
#modal-other .modal-content,
#modal-other-1 .modal-content,
#modal-other-2 .modal-content {

    max-width: 90vw;
    width: 1200px;
    max-height: 85vh;
    overflow-y: auto;
    padding: 20px;
}

.modal.closing .hardware-grid {
    transition: none;
}

.hardware-card .image-container {
    width: 100%;
    height: 150px;
    overflow: hidden;
    position: relative;
    background-color: rgba(0, 0, 0, 0.2);
}

.hardware-card .image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

@media (max-width: 600px) {
    .hardware-card .image-container {
        height: 180px;
    }
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 30px;
    height: 30px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.3s ease, transform 0.3s ease;
    z-index: 10;
    border: none;
    outline: none;
    color: var(--text);
    font-size: 18px;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.modal-close::before,
.modal-close::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 2px;
    background-color: var(--text);
    border-radius: 1px;
}

.modal-close::before {
    transform: rotate(45deg);
}

.modal-close::after {
    transform: rotate(-45deg);
}

.modal-content > .modal-close {
    opacity: 1 !important;
    transform: none !important;
    transition: background 0.3s ease, transform 0.3s ease !important;
}

.modal-content > .modal-close:hover {
    transform: rotate(90deg) !important;
}

.cursor-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    overflow: hidden;
}

.cursor-follower {
    display: none;
}

@keyframes pulse {
    0%, 50%, 100% {
        transform: translate(-50%, -50%) scale(1);
    }
}

.background-letters {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.letter {
    position: absolute;
    font-size: 24px;
    font-weight: bold;
    color: rgba(255, 255, 255, 0.03);
    transition: color 0.3s ease;
    font-family: 'Courier New', monospace;
    transform: rotate(var(--rotation));
    opacity: 0.5;
    user-select: none;
    animation: float 10s infinite ease-in-out;
    animation-delay: calc(var(--delay) * 1s);
}

.flashlight {
    position: fixed;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    pointer-events: none;
    background: transparent;
    transform: translate(-50%, -50%);
    z-index: -1;
}

.letter.highlighted {
    color: rgba(255, 255, 255, 0.9);
    text-shadow: 
        0 0 8px rgba(0, 230, 255, 0.8),
        0 0 15px rgba(255, 0, 230, 0.8);
    transition: color 0.2s ease, text-shadow 0.2s ease;
    opacity: 1;
}

@keyframes float {
    0% {
        transform: translate(0, 0) rotate(var(--rotation));
    }
    50% {
        transform: translate(5px, 5px) rotate(var(--rotation));
    }
    100% {
        transform: translate(0, 0) rotate(var(--rotation));
    }
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    padding: 20px;
    min-height: 150px;
    text-align: center;
}

.header-container h3 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--accent);
    margin: 0;
    padding: 0;
    text-shadow: 0 0 10px rgba(var(--accent-rgb), 0.5);
}

.hardware-card .header-container + .header {
    display: none;
}

.content a {
    color: white;
    font-weight: bold;
    text-decoration: underline;
    transition: color 0.3s ease;
}

.content a:hover {
    color: var(--accent);
}

.accordion {
    width: 100%;
    margin: 20px 0;
}

.accordion-item {
    margin-bottom: 10px;
    border-radius: var(--border-radius);
    overflow: hidden;
    background: rgba(255, 255, 255, 0.05);
}

.accordion-header {
    text-align: center;
    justify-content: center;
    display: flex;
    padding: 15px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.accordion-header:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.accordion-header::after {
    content: none;
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 15px;
    text-align: center;
}

.accordion-content.open {
    max-height: 500px;
    padding: 15px;
}

.accordion-content a {
    color: white;
    font-weight: bold;
    text-decoration: underline;
    transition: color 0.3s ease;
}

.accordion-content a:hover {
    color: var(--accent);
}

#modal-other .modal-content .accordion,
#modal-other-1 .modal-content .accordion,
#modal-other-2 .modal-content .accordion {
    width: 100%;
}

#modal-other .modal-content .accordion-item,
#modal-other-1 .modal-content .accordion-item,
#modal-other-2 .modal-content .accordion-item {
    margin-bottom: 10px;
}

#modal-other .modal-content .accordion-header,
#modal-other-1 .modal-content .accordion-header,
#modal-other-2 .modal-content .accordion-header {
    padding: 15px;
    cursor: pointer;
    display: flex;
    justify-content: center;
    text-align: center;
}

#modal-other .modal-content .accordion-header:hover,
#modal-other-1 .modal-content .accordion-header:hover,
#modal-other-2 .modal-content .accordion-header:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

#modal-other .modal-content .accordion-header::after,
#modal-other-1 .modal-content .accordion-header::after,
#modal-other-2 .modal-content .accordion-header::after {
    content: none;
}

#modal-other .modal-content .accordion-content,
#modal-other-1 .modal-content .accordion-content,
#modal-other-2 .modal-content .accordion-content {
    text-align: center;
}

#modal-other .modal-content .accordion-content a,
#modal-other-1 .modal-content .accordion-content a,
#modal-other-2 .modal-content .accordion-content a {
    color: white;
    font-weight: bold;
    text-decoration: underline;
    transition: color 0.3s ease;
}

#modal-other .modal-content .accordion-content a:hover,
#modal-other-1 .modal-content .accordion-content a:hover,
#modal-other-2 .modal-content .accordion-content a:hover {
    color: var(--accent);
}

#modal-other .modal-content .accordion-item .accordion-content p,
#modal-other-1 .modal-content .accordion-item .accordion-content p,
#modal-other-2 .modal-content .accordion-item .accordion-content p {
    margin-bottom: 10px;
}

#modal-other .modal-content .accordion-item .accordion-content p:last-child,
#modal-other-1 .modal-content .accordion-item .accordion-content p:last-child,
#modal-other-2 .modal-content .accordion-item .accordion-content p:last-child {
    margin-bottom: 0;
}

#modal-other .modal-content .accordion-item .accordion-content p a,
#modal-other-1 .modal-content .accordion-item .accordion-content p a,
#modal-other-2 .modal-content .accordion-item .accordion-content p a {
    color: white;
    font-weight: bold;
    text-decoration: underline;
    transition: color 0.3s ease;
}

#modal-other .modal-content .accordion-item .accordion-content p a:hover,
#modal-other-1 .modal-content .accordion-item .accordion-content p a:hover,
#modal-other-2 .modal-content .accordion-item .accordion-content p a:hover {
    color: var(--accent);
}

.modal-content h2 {
    text-align: center;
    margin-bottom: 20px;
}

.floating-game-button {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    background: linear-gradient(135deg, #6b0080 0%, #00b3ff 100%);
    color: white;
    width: 285cpx;
    height: 60px;
    border-radius: 30px;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    z-index: 100;
    overflow: hidden;
    padding-left: 20px;
    padding-right: 15px;
}

.floating-game-button svg {
    width: 24px;
    height: 24px;
    margin-right: 12px;
    flex-shrink: 0;
}

.floating-game-button span {
    white-space: nowrap;
    font-weight: 600;
    font-size: 1rem;
}

.floating-game-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.floating-game-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(
        circle 80px at var(--mouse-x, 50%) var(--mouse-y, 50%),
        rgba(255, 255, 255, 0.4),
        transparent 100%
    );
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.floating-game-button:hover::before {
    opacity: 1;
}

.back-button {
    display: inline-flex;
    align-items: center;
    padding: 8px 15px;
    background: rgba(30, 30, 40, 0.7);
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(100, 100, 255, 0.3);
    margin: 0;
    width: auto;
    white-space: nowrap;
}

.back-button svg {
    width: 20px;
    height: 20px;
    margin-right: 8px;
}

.back-button:hover {
    background: rgba(40, 40, 60, 0.9);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 255, 0.2);
    border-color: rgba(100, 100, 255, 0.6);
}

/* Класс для определения мобильных устройств через JavaScript */
body.mobile-device .background-letters {
    /* Специфичные настройки для фона на мобильных */
    opacity: 0.8;
}