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

:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1e40af;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-bg: #ffffff;
    --color-bg-light: #f9fafb;
    --color-border: #e5e7eb;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --border-radius: 0.5rem;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);

    --filter-white: brightness(0) invert(1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg-light);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    box-shadow: var(--shadow-md);
}

.header__container {
    max-width: 1024px;
    margin: 0 auto;
    width: 100%;
    padding: var(--spacing-xl) var(--spacing-sm);
}

.header__content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.header__info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
}

.header__name {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0;
}

.header__title {
    font-size: 1.25rem;
    font-weight: 400;
    opacity: 0.95;
    margin: 0;
}

.header__contacts {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: var(--spacing-sm);
}

.header__contact {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: white;
    text-decoration: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    transition: background-color 0.2s ease;
    white-space: nowrap;
}

.header__contact:hover {
    background: rgba(255, 255, 255, 0.2);
}

.header__contact-icon {
    width: 1.8rem;
    height: 1.8rem;
    flex-shrink: 0;
    filter: var(--filter-white);
}

.header__contact-text {
    font-size: 0.95rem;
}

/* Language Switcher */
.language-switcher {
    background: rgba(0, 0, 0, 0.1);
    padding: var(--spacing-sm) 0;
    width: 100%;
}

.language-switcher__container {
    max-width: 1024px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--spacing-xs);
}

.language-switcher__link {
    color: white;
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.25rem var(--spacing-xs);
    border-radius: 4px;
    transition: background-color 0.2s ease;
    font-weight: 500;
}

.language-switcher__link:hover {
    background: rgba(255, 255, 255, 0.2);
}

.language-switcher__link--active {
    background: rgba(255, 255, 255, 0.25);
    font-weight: 600;
}

.language-switcher__link--active {
    background: rgba(255, 255, 255, 0.25);
    font-weight: 600;
}

.language-switcher__separator {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

.header__contact {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: white;
    text-decoration: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius);
    transition: background-color 0.2s ease;
    white-space: nowrap;
}

/* Main */
.main {
    flex: 1;
    padding: var(--spacing-xl) var(--spacing-sm);
}

.main__container {
    max-width: 1024px;
    margin: 0 auto;
    width: 100%;
}

/* Section */
.section {
    background: var(--color-bg);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.section__title {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    border-bottom: 2px solid var(--color-primary);
    padding-bottom: var(--spacing-xs);
}

/* Experience */
.experience__item {
    margin-bottom: var(--spacing-md);
}

.experience__header {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.experience__company {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-primary);
}

.experience__position {
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--color-text);
}

.experience__period {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
    color: var(--color-text-light);
}

.experience__date {
    font-weight: 500;
}

.experience__description {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    line-height: 1.7;
}

.experience__subtitle {
    font-weight: 600;
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.experience__list {
    list-style: none;
    padding-left: 0;
}

.experience__list-item {
    position: relative;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    line-height: 1.7;
    color: var(--color-text);
}

.experience__list-item::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
    font-size: 1.2rem;
}

/* Skills */
.skills {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.skills__group {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--spacing-sm);
}

.skill {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    background: var(--color-bg-light);
    border-radius: var(--border-radius);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.skill__icon {
    font-size: 1.5rem;
    width: 1.5rem;
    height: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.skill__icon--text {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
    background: rgba(37, 99, 235, 0.1);
    border-radius: 4px;
    padding: 0.25rem;
    min-width: 1.5rem;
}

.skill__name {
    font-size: 0.95rem;
    color: var(--color-text);
    font-weight: 500;
}

/* Languages */
.languages {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.language {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--color-bg-light);
    border-radius: var(--border-radius);
}

.language__name {
    font-weight: 600;
    color: var(--color-text);
    min-width: 100px;
}

.language__level {
    color: var(--color-text-light);
}

/* Responsive */
@media (max-width: 768px) {
    .header__name {
        font-size: 2rem;
    }

    .header__title {
        font-size: 1.1rem;
    }

    .header__content {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }

    .header__contacts {
        align-items: flex-start;
        width: 100%;
    }

    .header__contact {
        width: 100%;
        justify-content: flex-start;
    }

    .section {
        padding: var(--spacing-md);
    }

    .section__title {
        font-size: 1.5rem;
    }

    .experience__company {
        font-size: 1.25rem;
    }

    .skills__group {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }

    .main {
        padding: var(--spacing-md) var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .header {
        padding: var(--spacing-lg) var(--spacing-sm);
    }

    .header__name {
        font-size: 1.75rem;
    }

    .section {
        padding: var(--spacing-sm);
    }

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

    .experience__list-item {
        padding-left: var(--spacing-md);
    }

    .language {
        flex-direction: column;
        align-items: flex-start;
    }

    .language__name {
        min-width: auto;
    }
}