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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #1e1e1e, #2d2d2d);
    color: #ffffff;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    line-height: 1.6;
}

.container {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

/* Анимации */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    opacity: 0;
    animation: fadeIn 0.6s ease-out forwards;
}

/* Шапка */
header {
    background: rgba(37, 37, 38, 0.8);
    padding: 2rem 0;
    margin-bottom: 2rem;
    border-bottom: 1px solid #3c3c3c;
    backdrop-filter: blur(10px);
    text-align: center;
}

h1 {
    color: #569cd6;
    font-size: 2.5em;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    align-items: center;
}

h1 .fa-microchip {
    color: #ffffff;
    font-size: 1.5rem;
    margin-top: 15px;
    background: rgba(86, 156, 214, 0.2);
    padding: 12px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

h1:hover .fa-microchip {
    transform: rotate(15deg);
    background: rgba(86, 156, 214, 0.4);
}

header p {
    color: #d4d4d4;
    font-size: 1.1em;
    max-width: 600px;
    margin: 0 auto;
    margin-top: 1rem;
}

/* Карточки */
.card-container {
    display: grid;
    gap: 1.5rem;
    max-width: 600px;
    margin: 0 auto;
    width: 100%;
}

.card {
    background: linear-gradient(145deg, #252526, #2d2d2d);
    border-radius: 10px;
    padding: 1.8rem;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border: 1px solid #3c3c3c;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
    border-color: #569cd6;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: #569cd6;
    transform: scaleX(0);
    transition: transform 0.3s ease;
    transform-origin: left;
}

.card:hover::before {
    transform: scaleX(1);
}

.card h2 {
    color: #9cdcfe;
    font-size: 1.5em;
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card p {
    display: flex;
    align-items: flex-start;
    margin: 12px 0;
    color: #d4d4d4;
    font-size: 0.95em;
    line-height: 1.5;
}

.icon-small {
    font-size: 0.9em;
    margin-right: 10px;
    color: #9cdcfe;
    min-width: 20px;
    text-align: center;
    margin-top: 3px;
}

.fa-arrow-right {
    color: #569cd6;
    transition: transform 0.2s;
}

.card:hover .fa-arrow-right {
    transform: translateX(5px);
}

/* Индикатор сложности */
.difficulty-indicator {
    display: flex;
    justify-content: space-between;
    width: 150px;
    margin: 15px 0 5px;
}

.difficulty-level {
    width: 30px;
    height: 15px;
    background-color: #ccc;
    margin: 2px;
    border-radius: 3px;
    transition: background-color 0.3s;
}

.difficulty-level.active {
    background-color: #4CAF50;
}

.difficulty-level.active.level-2 {
    background-color: #8BC34A;
}

.difficulty-level.active.level-3 {
    background-color: #FFEB3B;
}

.difficulty-level.active.level-4 {
    background-color: #FF9800;
}

.difficulty-level.active.level-5 {
    background-color: #F44336;
}

/* Футер */
footer {
    background: rgba(37, 37, 38, 0.8);
    padding: 1.5rem;
    margin-top: 3rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    border-top: 1px solid #3c3c3c;
    backdrop-filter: blur(10px);
}

footer p {
    color: #d4d4d4;
    font-size: 0.9em;
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icons a {
    color: #d4d4d4;
    font-size: 1.5em;
    transition: all 0.3s ease;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.social-icons a:hover {
    transform: translateY(-3px);
}

.youtube-icon:hover {
    color: #ff0000;
    background: rgba(255, 0, 0, 0.1);
}

.discord-icon:hover {
    color: #5865F2;
    background: rgba(88, 101, 242, 0.1);
}

.donation-icon:hover {
    color: #faa61a;
    background: rgba(250, 166, 26, 0.1);
}

.download-button {
    background-color: #464646;
    color: #ffffff;
    padding: 6px 12px;
    border: none;
    border-radius: 5px;
    font-size: 1em;
    cursor: pointer; 
    transition: background-color 0.3s, transform 0.2s;
    text-align: center;
    display: inline-block;
}

.download-button:hover {
    background-color: #4a77aa; /* Цвет фона при наведении */
    transform: translateY(-5px); /* Небольшое поднятие кнопки */
}

.download-button:active {
    transform: translateY(1px); /* Небольшое опускание при нажатии */
}

.download-button:focus {
    outline: none; /* Убираем обводку при фокусе */
    box-shadow: 0 0 0 3px rgba(86, 156, 214, 0.5); /* Тень при фокусе */
}


/* Адаптивность */
@media (max-width: 768px) {
    h1 {
        font-size: 2em;
    }
    
    .card {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .container {
        padding: 15px;
    }
    
    h1 .fa-microchip {
        font-size: 1.2rem;
        padding: 8px;
    }
    
    footer {
        flex-direction: column;
        gap: 1rem;
    }
}