:root {
    /* Фоны */
    --bg-primary: #0d0d0d;
    --bg-secondary: #161616;
    --bg-tertiary: #1f1f1f;
    --bg-elevated: #252525;

    /* Акцент */
    --accent: rgb(255, 85, 85);
    --accent-hover: rgb(255, 130, 130);
    --accent-soft: rgba(255, 85, 85, 0.15);
    --accent-glow: rgba(255, 85, 85, 0.4);

    /* Текст */
    --text-primary: #f2f2f2;
    --text-secondary: #c7c7c7;
    --text-muted: #666666;

    /* Границы */
    --border: #2a2a2a;
    --border-light: #333333;
}

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

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

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px 20px;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* ===== HERO ===== */
.hero {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 25px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    opacity: 0.3;
    pointer-events: none;
}

.hero-contacts {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    position: relative;
    z-index: 1;
}

.hero-contacts a {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    text-decoration: none;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    border: 1px solid var(--border);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s;
}

.hero-contacts a:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

.hero-contacts i {
    color: var(--accent);
}

/* ===== SECTIONS ===== */
.section {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 30px;
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.section.hidden {
    display: none;
}

.section.fade-out {
    opacity: 0;
    transform: translateY(-20px);
}

.section.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

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

.section-title {
    font-size: 1.5rem;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border);
}

.section-title i {
    color: var(--accent);
}

/* ===== ABOUT ===== */
.about-content {
    display: flex;
    gap: 25px;
    align-items: flex-start;
}

.about-photo {
    flex-shrink: 0;
    width: 180px;
    height: 220px;
    object-fit: cover;
    border-radius: 12px;
    border: 2px solid var(--border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.about-text-wrapper {
    flex: 1;
}

.about-name {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.about-city {
    color: var(--accent);
    font-size: 1rem;
    margin-bottom: 20px;
    font-weight: 500;
}

.about-text {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.7;
    text-align: justify;
    white-space: pre-line;
}

/* ===== CASES ===== */
.cases-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.case-card {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    min-height: 250px;
    background-size: cover;
    background-position: center;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
}

.case-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 40px rgba(255, 85, 85, 0.15);
}

.case-card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(13, 13, 13, 0.92) 0%,
        rgba(13, 13, 13, 0.78) 50%,
        rgba(13, 13, 13, 0.6) 100%
    );
    display: flex;
    align-items: stretch;
}

.case-card-content {
    padding: 25px;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.case-role {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 5px;
    color: var(--text-primary);
}

.case-company {
    font-size: 0.95rem;
    color: var(--accent-hover);
    margin-bottom: 15px;
    font-weight: 500;
}

.case-tasks {
    list-style: none;
    padding: 0;
}

.case-tasks li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.case-tasks li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-glow);
}

/* ===== PORTFOLIO ===== */
.portfolio-section {
    position: relative;
}

.back-button {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    transition: all 0.2s;
}

.back-button:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateX(-3px);
}

.back-button i {
    color: var(--accent);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

.portfolio-item {
    position: relative;
    aspect-ratio: 1 / 1;
    border-radius: 12px;
    overflow: hidden;
    cursor: pointer;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    animation: portfolioItemFade 0.5s ease forwards;
    opacity: 0;
}

.portfolio-item:nth-child(1) { animation-delay: 0.05s; }
.portfolio-item:nth-child(2) { animation-delay: 0.1s; }
.portfolio-item:nth-child(3) { animation-delay: 0.15s; }
.portfolio-item:nth-child(4) { animation-delay: 0.2s; }
.portfolio-item:nth-child(5) { animation-delay: 0.25s; }
.portfolio-item:nth-child(6) { animation-delay: 0.3s; }

@keyframes portfolioItemFade {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s;
    display: block;
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        rgba(13, 13, 13, 0.95) 0%,
        rgba(13, 13, 13, 0.3) 50%,
        transparent 100%
    );
    display: flex;
    align-items: flex-end;
    padding: 15px;
    opacity: 0;
    transition: opacity 0.3s;
}

.portfolio-item:hover img {
    transform: scale(1.08);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

/* ===== MODAL ===== */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    width: 45px;
    height: 45px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    z-index: 1001;
}

.modal-close:hover {
    background: var(--accent);
    border-color: var(--accent);
    transform: rotate(90deg);
}

.modal-body {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-body img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 8px;
    animation: imageZoom 0.3s ease;
}

@keyframes imageZoom {
    from {
        transform: scale(0.95);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.modal-body iframe {
    width: 90vw;
    height: 80vh;
    border: none;
    border-radius: 8px;
}

/* ===== FOOTER ===== */
.footer {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    padding: 20px 0;
    border-top: 1px solid var(--border);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 700px) {
    .container {
        padding: 20px 15px;
    }
    
    .about-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .about-photo {
        width: 200px;
        height: 240px;
        margin-bottom: 20px;
    }
    
    .about-name {
        font-size: 1.5rem;
    }
    
    .portfolio-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .case-card-content {
        padding: 20px;
    }
    
    .case-role {
        font-size: 1.1rem;
    }
}

@media (max-width: 450px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-contacts {
        flex-direction: column;
    }
}