:root {
    --bg-color: #1a1a1a;
    --text-color: white;
    --nav-bg: #1d1d1d;
    --border-color: #2a2c2e;
    --card-bg: #1d1d1d;
    --theme-transition: 0.3s ease;
    --hover-transition: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    --hover-shadow: 0 8px 16px rgba(0, 0, 0, 0.4);
    --logo-glow: 0 0 5px rgba(255, 255, 255, 0.5);

    --cores-border: #eebd53;
    --generator-border: #bd53ee;
    --plugins-border: #84ee53;
    --instructions-border: #ee5389;
    --cores-bg: #635027;
    --generator-bg: #40224e;
    --plugins-bg: #304e22;
    --instructions-bg: #4e2232;
}


[data-theme="light"] {
    --bg-color: #1a1a1a;
    --text-color: #1a1a1a;
    --nav-bg: #ffffff;
    --border-color: #e0e0e0;
    --card-bg: #ffffff;
    --hover-shadow: 0 8px 16px rgba(0, 0, 0, 0.25);
    --logo-glow: 0 0 5px rgba(0, 0, 0, 0.3);

    --cores-bg: #fff8e7;
    --generator-bg: #f7e7ff;
    --plugins-bg: #e7ffe7;
    --instructions-bg: #ffe7f0;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Inter', sans-serif;
    min-height: 100vh;
    padding: 2rem;
    line-height: 1.4;
    transition: background-color var(--theme-transition), color var(--theme-transition);
    user-select: none;
    /* Новый сложный фон с большими источниками света и фиксированным noise.png */
    background-image:
        radial-gradient(ellipse 90% 90% at 0% 0%, rgba(255, 200, 0, 0.45), transparent 80%),
        radial-gradient(ellipse 90% 90% at 100% 40%, rgba(255, 40, 40, 0.35), transparent 80%),
        url('Content/main.png'),
        url('Content/noise.png');
    background-blend-mode: lighten, lighten, normal, multiply;
    background-size: cover, 90vw 90vw, 60vw 60vw, 20%;
    background-repeat: no-repeat, no-repeat, no-repeat, repeat;
    background-position: left top, right top, left bottom, center center;
    background-attachment: scroll, scroll, scroll, fixed;
}

[data-theme="light"] body {
    background: none !important;
    background-color: var(--bg-color) !important;
    background-image:
        radial-gradient(ellipse 90% 90% at 0% 0%, rgba(255, 200, 0, 0.45), transparent 80%),
        radial-gradient(ellipse 90% 90% at 100% 40%, rgba(255, 40, 40, 0.35), transparent 80%),
        url('Content/main.png'),
        url('Content/noise.png') !important;
    background-blend-mode: lighten, lighten, normal, multiply !important;
    background-size: cover, 90vw 90vw, 60vw 60vw, 20% !important;
    background-repeat: no-repeat, no-repeat, no-repeat, repeat !important;
    background-position: left top, right top, left bottom, center center !important;
    background-attachment: scroll, scroll, scroll, fixed !important;
}

.container {
    max-width: 1200px;
    margin: 5rem auto 0;
    padding-top: 2rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
    max-width: 800px;
    margin: 0 auto;
}

.grid-item {
    background-color: rgba(29, 29, 29, 0.45); /* ещё больше прозрачности */
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    padding: 1.5rem;
    border-radius: 6px;
    border: 2px solid var(--border-color);
    position: relative;
    height: 180px;
    transform: translate(0, 0);
    transition: all var(--hover-transition), background-color 0.3s ease, border-color 0.3s ease;
    will-change: transform;
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    display: block;
}

[data-theme="light"] .grid-item {
    background-color: rgba(255,255,255,0.85); /* белый цвет плитки в светлой теме */
    color: var(--text-color);
}

.grid-item:hover {
    cursor: pointer;
    box-shadow: var(--hover-shadow);
    text-decoration: none;
    color: inherit;
}

.grid-item:nth-child(1) { transform: translate(0, 0); }
.grid-item:nth-child(2) { transform: translate(0, 0); }
.grid-item:nth-child(3) { transform: translate(0, 0); }
.grid-item:nth-child(4) { transform: translate(0, 0); }

.grid-item:nth-child(1):hover { 
    transform: translate(-8px, -8px);
    background-color: var(--cores-bg); 
    border-color: var(--cores-border); 
}

.grid-item:nth-child(2):hover { 
    transform: translate(8px, -8px);
    background-color: var(--generator-bg); 
    border-color: var(--generator-border); 
}

.grid-item:nth-child(3):hover { 
    transform: translate(-8px, 8px);
    background-color: var(--plugins-bg); 
    border-color: var(--plugins-border); 
}

.grid-item:nth-child(4):hover { 
    transform: translate(8px, 8px);
    background-color: var(--instructions-bg); 
    border-color: var(--instructions-border); 
}

/* Эффекты движения к центру при наведении на первый блок */
.grid-item:nth-child(1):hover ~ .grid-item:nth-child(2) {
    transform: translate(-4px, 4px);
}
.grid-item:nth-child(1):hover ~ .grid-item:nth-child(3) {
    transform: translate(4px, -4px);
}
.grid-item:nth-child(1):hover ~ .grid-item:nth-child(4) {
    transform: translate(-4px, -4px);
}

/* Эффекты движения к центру при наведении на второй блок */
.grid-item:nth-child(2):hover ~ .grid-item:nth-child(3) {
    transform: translate(4px, -4px);
}
.grid-item:nth-child(2):hover ~ .grid-item:nth-child(4) {
    transform: translate(-4px, -4px);
}
.grid:has(.grid-item:nth-child(2):hover) .grid-item:nth-child(1) {
    transform: translate(4px, 4px);
}

/* Эффекты движения к центру при наведении на третий блок */
.grid:has(.grid-item:nth-child(3):hover) .grid-item:nth-child(1) {
    transform: translate(4px, 4px);
}
.grid:has(.grid-item:nth-child(3):hover) .grid-item:nth-child(2) {
    transform: translate(-4px, 4px);
}
.grid-item:nth-child(3):hover ~ .grid-item:nth-child(4) {
    transform: translate(-4px, -4px);
}

/* Эффекты движения к центру при наведении на четвертый блок */
.grid:has(.grid-item:nth-child(4):hover) .grid-item:nth-child(1) {
    transform: translate(4px, 4px);
}
.grid:has(.grid-item:nth-child(4):hover) .grid-item:nth-child(2) {
    transform: translate(-4px, 4px);
}
.grid:has(.grid-item:nth-child(4):hover) .grid-item:nth-child(3) {
    transform: translate(4px, -4px);
}

.grid-item::before,
.grid-item::after,
.grid-item .circle {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(15px);
    opacity: 0;
    transition: opacity 0.2s ease;
    z-index: 0;
    pointer-events: none;
}

.grid-item::before {
    width: 250px;
    height: 250px;
    animation: floating1 8s ease-in-out infinite;
}

.grid-item::after {
    width: 180px;
    height: 180px;
    animation: floating2 7s ease-in-out infinite;
}

.grid-item .circle {
    width: 150px;
    height: 150px;
    animation: floating3 9s ease-in-out infinite;
}

.grid-item:nth-child(1)::before {
    background: radial-gradient(circle, rgba(238,189,83,0.5) 0%, rgba(238,189,83,0) 70%);
    animation-delay: -2s;
}

.grid-item:nth-child(1)::after {
    background: radial-gradient(circle, rgba(238,189,83,0.3) 0%, rgba(238,189,83,0) 70%);
    animation-delay: -4s;
}

.grid-item:nth-child(1) .circle {
    background: radial-gradient(circle, rgba(238,189,83,0.4) 0%, rgba(238,189,83,0) 70%);
    animation-delay: -6s;
}

.grid-item:nth-child(2)::before {
    background: radial-gradient(circle, rgba(189,83,238,0.5) 0%, rgba(189,83,238,0) 70%);
    animation-delay: -1s;
}

.grid-item:nth-child(2)::after {
    background: radial-gradient(circle, rgba(189,83,238,0.3) 0%, rgba(189,83,238,0) 70%);
    animation-delay: -3s;
}

.grid-item:nth-child(2) .circle {
    background: radial-gradient(circle, rgba(189,83,238,0.4) 0%, rgba(189,83,238,0) 70%);
    animation-delay: -5s;
}

.grid-item:nth-child(3)::before {
    background: radial-gradient(circle, rgba(132,238,83,0.5) 0%, rgba(132,238,83,0) 70%);
    animation-delay: -3s;
}

.grid-item:nth-child(3)::after {
    background: radial-gradient(circle, rgba(132,238,83,0.3) 0%, rgba(132,238,83,0) 70%);
    animation-delay: -5s;
}

.grid-item:nth-child(3) .circle {
    background: radial-gradient(circle, rgba(132,238,83,0.4) 0%, rgba(132,238,83,0) 70%);
    animation-delay: -7s;
}

.grid-item:nth-child(4)::before {
    background: radial-gradient(circle, rgba(238,83,137,0.5) 0%, rgba(238,83,137,0) 70%);
    animation-delay: -4s;
}

.grid-item:nth-child(4)::after {
    background: radial-gradient(circle, rgba(238,83,137,0.3) 0%, rgba(238,83,137,0) 70%);
    animation-delay: -2s;
}

.grid-item:nth-child(4) .circle {
    background: radial-gradient(circle, rgba(238,83,137,0.4) 0%, rgba(238,83,137,0) 70%);
    animation-delay: -8s;
}

.grid-item:hover::before,
.grid-item:hover::after,
.grid-item:hover .circle {
    opacity: 1;
    transition: opacity 1.2s ease;
}

.grid-item h2, .grid-item p, .icon {
    position: relative;
    z-index: 1;
}

.grid-item h2 {
    font-size: 1.2rem;
    margin: 1rem 0 0.5rem;
    font-weight: 600;
}

.grid-item p {
    color: #a0a0a0;
    font-size: 0.9rem;
    font-weight: 400;
    transition: all var(--hover-transition);
}

.grid-item:hover p {
    color: var(--text-color);
    text-shadow: 0 0 1px rgba(255, 255, 255, 0.2);
}

.icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--hover-transition);
    position: relative;
    z-index: 2;
    cursor: pointer;
}

.icon img {
    width: 24px;
    height: 24px;
    filter: brightness(0) invert(1);
    will-change: transform;
    transition: all var(--hover-transition);
}

/* иконоки */
.icon.cores { 
    background-color: var(--cores-bg); 
    border: 2px solid var(--cores-border); 
    transition: all var(--hover-transition);
}
.icon.generator { 
    background-color: var(--generator-bg); 
    border: 2px solid var(--generator-border); 
    transition: all var(--hover-transition);
}
.icon.plugins { 
    background-color: var(--plugins-bg); 
    border: 2px solid var(--plugins-border); 
    transition: all var(--hover-transition);
}
.icon.instructions { 
    background-color: var(--instructions-bg); 
    border: 2px solid var(--instructions-border); 
    transition: all var(--hover-transition);
}

/* Эффекты при наведении */
.icon:hover {
    transform: scale(1.1);
    box-shadow: 0 0 20px rgba(0,0,0,0.2);
}

.icon:hover img {
    transform: scale(1.15);
    filter: brightness(0) invert(1) drop-shadow(0 0 3px rgba(255,255,255,0.5));
}

.icon.cores:hover {
    background-color: var(--cores-border);
    border-color: var(--cores-border);
    box-shadow: 0 0 20px rgba(238,189,83,0.3);
}

.icon.generator:hover {
    background-color: var(--generator-border);
    border-color: var(--generator-border);
    box-shadow: 0 0 20px rgba(189,83,238,0.3);
}

.icon.plugins:hover {
    background-color: var(--plugins-border);
    border-color: var(--plugins-border);
    box-shadow: 0 0 20px rgba(132,238,83,0.3);
}

.icon.instructions:hover {
    background-color: var(--instructions-border);
    border-color: var(--instructions-border);
    box-shadow: 0 0 20px rgba(238,83,137,0.3);
}

/* Светлая тема */
[data-theme="light"] .icon img {
    filter: brightness(0);
    transition: all var(--hover-transition);
}

[data-theme="light"] .icon:hover img {
    filter: brightness(0);
    transform: scale(1.15);
}

.icon.cores:hover {
    background-color: var(--cores-border);
    border-color: var(--cores-border);
    box-shadow: 0 0 20px rgba(238,189,83,0.3);
}

.icon.generator:hover {
    background-color: var(--generator-border);
    border-color: var(--generator-border);
    box-shadow: 0 0 20px rgba(189,83,238,0.3);
}

.icon.plugins:hover {
    background-color: var(--plugins-border);
    border-color: var(--plugins-border);
    box-shadow: 0 0 20px rgba(132,238,83,0.3);
}

.icon.instructions:hover {
    background-color: var(--instructions-border);
    border-color: var(--instructions-border);
    box-shadow: 0 0 20px rgba(238,83,137,0.3);
}

@keyframes floating1 {
    0% { transform: translate(20px, 20px); }
    25% { transform: translate(40px, -20px); }
    50% { transform: translate(-20px, 30px); }
    75% { transform: translate(-30px, -10px); }
    100% { transform: translate(20px, 20px); }
}

@keyframes floating2 {
    0% { transform: translate(-30px, -20px); }
    25% { transform: translate(20px, 30px); }
    50% { transform: translate(40px, -10px); }
    75% { transform: translate(-20px, 20px); }
    100% { transform: translate(-30px, -20px); }
}

@keyframes floating3 {
    0% { transform: translate(0px, 30px); }
    33% { transform: translate(30px, -20px); }
    66% { transform: translate(-30px, 10px); }
    100% { transform: translate(0px, 30px); }
}

.grid-item .circle-1,
.grid-item .circle-2,
.grid-item .circle-3 {
    position: absolute;
    border-radius: 50%;
    filter: blur(15px);
    opacity: 0;
    transition: opacity 0.2s ease;
    pointer-events: none;
}

.grid-item .circle-1 {
    width: 120px;
    height: 120px;
    left: 20px;
    top: 20px;
    animation: floating1 8s ease-in-out infinite;
}

.grid-item .circle-2 {
    width: 100px;
    height: 100px;
    right: 20px;
    bottom: 20px;
    animation: floating2 7s ease-in-out infinite;
}

.grid-item .circle-3 {
    width: 80px;
    height: 80px;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    animation: floating3 9s ease-in-out infinite;
}


.grid-item:nth-child(1) .circle-1 {
    background: radial-gradient(circle, rgba(238,189,83,0.5) 0%, rgba(238,189,83,0) 70%);
    animation-delay: -2s;
}
.grid-item:nth-child(1) .circle-2 {
    background: radial-gradient(circle, rgba(238,189,83,0.3) 0%, rgba(238,189,83,0) 70%);
    animation-delay: -4s;
}
.grid-item:nth-child(1) .circle-3 {
    background: radial-gradient(circle, rgba(238,189,83,0.4) 0%, rgba(238,189,83,0) 70%);
    animation-delay: -6s;
}


.grid-item:nth-child(2) .circle-1 {
    background: radial-gradient(circle, rgba(189,83,238,0.5) 0%, rgba(189,83,238,0) 70%);
    animation-delay: -1s;
}
.grid-item:nth-child(2) .circle-2 {
    background: radial-gradient(circle, rgba(189,83,238,0.3) 0%, rgba(189,83,238,0) 70%);
    animation-delay: -3s;
}
.grid-item:nth-child(2) .circle-3 {
    background: radial-gradient(circle, rgba(189,83,238,0.4) 0%, rgba(189,83,238,0) 70%);
    animation-delay: -5s;
}


.grid-item:nth-child(3) .circle-1 {
    background: radial-gradient(circle, rgba(132,238,83,0.5) 0%, rgba(132,238,83,0) 70%);
    animation-delay: -3s;
}
.grid-item:nth-child(3) .circle-2 {
    background: radial-gradient(circle, rgba(132,238,83,0.3) 0%, rgba(132,238,83,0) 70%);
    animation-delay: -5s;
}
.grid-item:nth-child(3) .circle-3 {
    background: radial-gradient(circle, rgba(132,238,83,0.4) 0%, rgba(132,238,83,0) 70%);
    animation-delay: -7s;
}


.grid-item:nth-child(4) .circle-1 {
    background: radial-gradient(circle, rgba(238,83,137,0.5) 0%, rgba(238,83,137,0) 70%);
    animation-delay: -4s;
}
.grid-item:nth-child(4) .circle-2 {
    background: radial-gradient(circle, rgba(238,83,137,0.3) 0%, rgba(238,83,137,0) 70%);
    animation-delay: -2s;
}
.grid-item:nth-child(4) .circle-3 {
    background: radial-gradient(circle, rgba(238,83,137,0.4) 0%, rgba(238,83,137,0) 70%);
    animation-delay: -8s;
}

.grid-item:hover .circle-1,
.grid-item:hover .circle-2,
.grid-item:hover .circle-3 {
    opacity: 1;
    transition: opacity 1.2s ease;
}


[data-theme="light"] .grid-item:nth-child(1) .circle-1 { background: radial-gradient(circle, rgba(238,189,83,0.7) 0%, rgba(238,189,83,0) 70%); }
[data-theme="light"] .grid-item:nth-child(1) .circle-2 { background: radial-gradient(circle, rgba(238,189,83,0.5) 0%, rgba(238,189,83,0) 70%); }
[data-theme="light"] .grid-item:nth-child(1) .circle-3 { background: radial-gradient(circle, rgba(238,189,83,0.6) 0%, rgba(238,189,83,0) 70%); }

[data-theme="light"] .grid-item:nth-child(2) .circle-1 { background: radial-gradient(circle, rgba(189,83,238,0.7) 0%, rgba(189,83,238,0) 70%); }
[data-theme="light"] .grid-item:nth-child(2) .circle-2 { background: radial-gradient(circle, rgba(189,83,238,0.5) 0%, rgba(189,83,238,0) 70%); }
[data-theme="light"] .grid-item:nth-child(2) .circle-3 { background: radial-gradient(circle, rgba(189,83,238,0.6) 0%, rgba(189,83,238,0) 70%); }

[data-theme="light"] .grid-item:nth-child(3) .circle-1 { background: radial-gradient(circle, rgba(132,238,83,0.7) 0%, rgba(132,238,83,0) 70%); }
[data-theme="light"] .grid-item:nth-child(3) .circle-2 { background: radial-gradient(circle, rgba(132,238,83,0.5) 0%, rgba(132,238,83,0) 70%); }
[data-theme="light"] .grid-item:nth-child(3) .circle-3 { background: radial-gradient(circle, rgba(132,238,83,0.6) 0%, rgba(132,238,83,0) 70%); }

[data-theme="light"] .grid-item:nth-child(4) .circle-1 { background: radial-gradient(circle, rgba(238,83,137,0.7) 0%, rgba(238,83,137,0) 70%); }
[data-theme="light"] .grid-item:nth-child(4) .circle-2 { background: radial-gradient(circle, rgba(238,83,137,0.5) 0%, rgba(238,83,137,0) 70%); }
[data-theme="light"] .grid-item:nth-child(4) .circle-3 { background: radial-gradient(circle, rgba(238,83,137,0.6) 0%, rgba(238,83,137,0) 70%); }

@media (max-width: 768px) {
    .grid {
        display: flex;
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }

    .grid-item {
        width: 100%;
        height: auto;
        min-height: 120px;
        margin: 0;
        transform: none !important;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .grid-item:hover {
        transform: translateY(-8px) !important;
        box-shadow: var(--hover-shadow);
    }

    /* Адаптивные стили для кружков на мобильных устройствах */
    .grid-item .circle-1,
    .grid-item .circle-2,
    .grid-item .circle-3 {
        width: 80px;
        height: 80px;
        filter: blur(10px);
    }

    .grid-item .circle-1 {
        left: 10px;
        top: 10px;
    }

    .grid-item .circle-2 {
        right: 10px;
        bottom: 10px;
    }

    .grid-item .circle-3 {
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
    }

    .icon {
        width: 36px;
        height: 36px;
    }

    .icon img {
        width: 20px;
        height: 20px;
    }

    .grid-item h2 {
        font-size: 1.1rem;
        margin: 0.5rem 0;
    }

    .grid-item p {
        font-size: 0.85rem;
    }

    .container {
        margin-top: 4rem;
        padding: 0;
    }

    .navbar {
        padding: 0.5rem 1rem;
    }

    .nav-brand span {
        font-size: 1rem;
    }

    .nav-logo {
        height: 24px;
    }
}

/*навбар */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(30, 30, 30, 0.35); /* прозрачность */
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: background-color var(--theme-transition), border-color var(--theme-transition);
}

[data-theme="light"] .navbar {
    background: rgba(255,255,255,0.55);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 6px;
}

.nav-logo {
    height: 32px;
    width: auto;
}

.nav-brand span {
    font-weight: 600;
    font-size: 1.2rem;
    transition: text-shadow var(--theme-transition);
}

.nav-brand:hover span {
    text-shadow: var(--logo-glow);
}

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--theme-transition);
}

.theme-toggle:hover {
    background-color: var(--border-color);
}

.theme-toggle img {
    opacity: 0.7;
    transition: opacity var(--theme-transition);
}

.theme-toggle:hover img {
    opacity: 1;
}

[data-theme="dark"] .theme-toggle img {
    filter: invert(1);
}

.sun-icon, .moon-icon {
    width: 24px;
    height: 24px;
    transition: opacity var(--theme-transition);
}

[data-theme="light"] .sun-icon {
    display: none;
}

[data-theme="light"] .moon-icon {
    display: block;
}

[data-theme="dark"] .sun-icon {
    display: block;
}

[data-theme="dark"] .moon-icon {
    display: none;
}