/* Font loaded in HTML head for better performance */
:root {
    --color-primary-dark: #0a0a0a;
    --color-primary-light: #fff;
    --color-accent-purple: #183940;
    --color-accent-pink: #54878C;
    --color-selection-bg: #0F1D29;
    --color-neutral-shadow: rgba(0,0,0,0.5);
    --color-neutral-border: rgba(255,255,255,0.2);
    --color-neutral-hover: rgba(255,255,255,0.1);
    --color-neutral-text-disabled: #ffffff50;
    --color-black: #000;
}

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

::selection {
    background-color: var(--color-selection-bg);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Raleway", sans-serif;
    background-color: var(--color-primary-dark);
    color: var(--color-primary-light);
    overflow-x: hidden;
    line-height: 1.6;
    /* Включаем аппаратное ускорение для всей страницы */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.header-text {
    flex: 1;
}

h1 {
    font-size: 4em;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px var(--color-neutral-shadow);
    user-select: none;
}

a {
    text-decoration: none;
    color: var(--color-primary-light);
    font-size: 1.2em;
    transition: color 0.3s ease, background-color 0.3s ease, transform 0.3s ease;
    user-select: none;
}

.more-projects-link {
    display: block;
    margin: 20px auto;
    padding: 10px 20px;
    border: 1px solid var(--color-primary-light);
    border-radius: 5px;
    text-align: center;
}

.more-projects-link:hover {
    background-color: var(--color-primary-light);
    color: var(--color-black);
}

.gradient-text {
    background: linear-gradient(to right, var(--color-accent-purple), var(--color-accent-pink));
    background-size: 200% 200%;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradientAnimation 5s ease infinite;
    /* GPU-ускорение для анимации */
    will-change: background-position;
}

@keyframes gradientAnimation {
    0%   { background-position: 0% 50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.description {
    font-size: 1.2em;
    margin-bottom: 30px;
}

.profile-image {
    flex: 1;
    text-align: right;
}

.profile-image img {
    max-width: 100%;
    height: auto;
    filter: drop-shadow(5px 5px 10px var(--color-neutral-shadow));
    border-radius: 10%;
    transition: transform 0.3s ease;
    /* GPU-ускорение */
    will-change: transform;
    transform: translateZ(0);
}

.profile-image img:hover {
    transform: scale(1.05) rotate(2deg) translateZ(0);
}

.info-blocks {
    padding: 100px 0;
}

.info-block {
    margin-bottom: 100px;
    opacity: 0;
    transform: translateY(50px) translateZ(0);
    transition: opacity 0.8s ease, transform 0.8s ease;
    /* GPU-ускорение для анимации появления */
    will-change: opacity, transform;
}

.info-block.visible {
    opacity: 1;
    transform: translateY(0) translateZ(0);
    will-change: auto;
}

.info-block h2 {
    font-size: 2.5em;
    margin-bottom: 20px;
    position: relative;
    display: inline-block;
    user-select: none;
}

.info-block h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(to right, var(--color-accent-purple), var(--color-accent-pink));
    transition: width 0.3s ease;
}

.info-block:hover h2::after {
    width: 100%;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
}

.skill {
    text-align: center;
    padding: 20px;
    border: 1px solid var(--color-neutral-border);
    border-radius: 10px;
    transition: background-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
    user-select: none;
    will-change: transform;
}

.skill:hover {
    background-color: var(--color-neutral-hover);
    transform: translateY(-5px) translateZ(0);
    box-shadow: 0 2px 5px var(--color-neutral-shadow);
}

.skill i {
    font-size: 3em;
    margin-bottom: 10px;
    color: var(--color-accent-pink);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    align-items: stretch;
}

@media (min-width: 768px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.project {
    border: 1px solid var(--color-neutral-border);
    border-radius: 10px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    will-change: transform;
}

.project:hover {
    transform: translateY(-5px) translateZ(0);
    box-shadow: 0 2px 5px var(--color-neutral-shadow);
}

.project h3 {
    font-size: 1.5em;
    margin: 15px 0;
    padding: 0 15px;
}

.project p {
    padding: 0 15px;
    margin-bottom: 15px;
    word-break: break-word;
}

.project-link {
    display: block;
    text-align: center;
    padding: 10px;
    background-color: var(--color-accent-purple);
    color: var(--color-primary-light);
    text-decoration: none;
    border-bottom-left-radius: 10px;
    border-bottom-right-radius: 10px;
    transition: background-color 0.3s ease;
    font-size: 1em;
}

.project-link:hover {
    background-color: var(--color-accent-pink);
}

.contact-buttons {
    display: inline-flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
    position: relative;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
}

.contact-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: transparent;
    color: var(--color-primary-light);
    text-decoration: none;
    border-radius: 50%;
    font-size: 48px;
    transition: transform 0.5s ease, background-color 0.5s ease;
    will-change: transform;
}

.contact-button:hover {
    transform: translateY(-5px) rotate(360deg) translateZ(0);
    background: var(--color-neutral-hover);
}

.version {
    text-align: center;
    color: var(--color-neutral-text-disabled);
}

/* ===== Медиа-запросы ===== */
@media (max-width: 768px) {
    .container {
        margin-top: 100px;
    }

    .header-content {
        flex-direction: column-reverse;
    }

    .profile-image {
        text-align: center;
        margin-bottom: 20px;
    }

    .skills-grid {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    }

    .projects-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        justify-content: center;
    }

    .project {
        min-height: auto;
        padding: 15px;
    }

    .project-link {
        border-radius: 10px;
        width: 100%;
        box-sizing: border-box;
    }
}

/* Уменьшаем анимации для пользователей с prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .info-block {
        opacity: 1;
        transform: none;
    }
}