:root {
    --bg-color: #080a0d;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --accent: #38bdf8;
    --accent-hover: #7dd3fc;
    --card-bg: #111827;
    --border: #1e293b;
    --border-hover: #334155;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 680px;
    margin: 0 auto;
    padding: 80px 20px;
}

/* Сетка шапки для больших экранов */
.header-grid {
    display: grid;
    grid-template-columns: 1fr 140px;
    gap: 32px;
    align-items: center;
    margin-bottom: 40px;
}

h1 {
    font-size: 2.4rem;
    font-weight: 800;
    margin: 0 0 8px 0;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, #ffffff 50%, var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin: 0;
}

/* Контейнер круглого фото и умное кадрирование портрета */
.profile-photo-container {
    display: flex;
    justify-content: flex-end;
}

.profile-photo-wrapper {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--border);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
    transition: all 0.3s ease;
}

.profile-photo-wrapper:hover {
    border-color: var(--accent);
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.15);
    transform: scale(1.02);
}

.profile-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* Фокусируемся на лице новой вертикальной фотки (чуть выше центра) */
    object-position: center 22%;
}

/* Блок контактов под именем */
.grid-contacts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 12px;
    margin-bottom: 48px;
}

.contact-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px 16px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-card:hover {
    border-color: var(--border-hover);
}

.contact-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.contact-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.contact-value a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    font-family: monospace;
    font-size: 0.95rem;
    transition: color 0.2s;
}

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

.copy-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.copy-btn:hover {
    color: var(--accent);
    background: #1e293b;
}

.copy-btn svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
}

.tooltip {
    position: absolute;
    right: 16px;
    top: 10px;
    background: #10b981;
    color: #fff;
    font-size: 0.7rem;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
    opacity: 0;
    transition: opacity 0.2s;
    pointer-events: none;
}

h2 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--accent);
    margin: 52px 0 20px 0;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 8px;
}

p {
    color: #e2e8f0;
    font-size: 1rem;
}

.research-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px;
}

.research-card ul {
    padding-left: 20px;
    color: #e2e8f0;
    margin-bottom: 0;
}

.research-card li {
    margin-bottom: 8px;
    font-size: 0.95rem;
}

.research-card li strong {
    color: var(--accent);
}

.timeline {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.timeline-item {
    display: grid;
    grid-template-columns: 130px 1fr;
    gap: 16px;
}

.timeline-date {
    font-family: monospace;
    color: var(--accent);
    font-weight: 600;
    font-size: 1rem;
    padding-top: 2px;
}

.timeline-content strong {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.05rem;
}

.timeline-sub {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: 2px;
}

.publication-item {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 24px;
    transition: all 0.2s;
}

.publication-item:hover {
    border-color: var(--accent);
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.08);
}

.publication-title {
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1.1rem;
    line-height: 1.4;
}

.publication-journal {
    font-style: italic;
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin: 8px 0 18px 0;
}

.btn-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn {
    background: #1e293b;
    border: 1px solid var(--border);
    color: #ffffff;
    padding: 6px 16px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s;
}

.btn:hover {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--bg-color);
    font-weight: 600;
}

/* Стили для нового списка конференций */
.conferences-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.conf-item {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: border-color 0.2s;
}

.conf-item:hover {
    border-color: var(--border-hover);
}

.conf-name {
    font-weight: 600;
    color: var(--text-primary);
}

.conf-link {
    color: var(--accent);
    font-size: 0.9rem;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.conf-link:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

footer {
    margin-top: 90px;
    border-top: 1px solid var(--border);
    padding-top: 24px;
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* МЕДИА-ЗАПРОС ДЛЯ МОБИЛОК: Перестраиваем шапку в аккуратный стек */
@media (max-width: 640px) {
    .container {
        padding: 40px 16px;
    }
    
    .header-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 20px;
        margin-bottom: 24px;
    }
    
    .profile-photo-container {
        justify-content: center;
        order: -1; /* Фото встает на самый верх над именем */
    }
    
    .grid-contacts {
        grid-template-columns: 1fr;
        text-align: left;
    }
    
    .timeline-item {
        grid-template-columns: 1fr;
        gap: 4px;
    }
    
    .timeline-date {
        font-size: 0.9rem;
    }
    
    .conf-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
}