/* ==========================================================================
   Language Switcher
   ========================================================================== */
.lang-switcher {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    margin: 1rem 1rem 0.5rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-color);
}

.lang-btn {
    padding: 0.35rem 0.85rem;
    border-radius: var(--border-radius-sm);
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.lang-btn:hover {
    color: var(--text-color);
    border-color: var(--primary-color);
}

.lang-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
}

/* ==========================================================================
   About Section
   ========================================================================== */
.about-text {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.contact-section {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.contact-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.contact-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.contact-button {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 1.5rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.contact-button:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--shadow-light);
}

.contact-button svg {
    width: 20px;
    height: 20px;
    margin-right: 0.5rem;
}

/* ==========================================================================
   Technology Stack
   ========================================================================== */
.tech-grid {
    display: grid;
    gap: 1.5rem;
}

.tech-category {
    padding: 0.25rem 0 1.5rem;
}

.tech-category + .tech-category {
    border-top: 1px solid var(--border-color);
    padding-top: 1.75rem;
}

.tech-category-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    color: var(--primary-color);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.tech-items {
    display: grid;
    gap: 0.75rem;
    grid-template-columns: 1fr;
}

@media (min-width: 900px) {
    .tech-items {
        grid-template-columns: repeat(2, 1fr);
    }
}

.tech-item {
    display: flex;
    align-items: center;
    padding: 0.875rem 1rem;
    background: var(--glass-bg);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.tech-item:hover {
    background: rgba(108, 99, 255, 0.08);
    border-color: var(--primary-color);
    transform: translateX(2px);
}

.tech-icon {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
    margin-right: 1rem;
    color: var(--primary-color);
}

.tech-info h4 {
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: 0.2rem;
    color: var(--text-color);
}

.tech-info p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* ==========================================================================
   Projects
   ========================================================================== */
.projects-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

@media (min-width: 1200px) {
    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

@media (min-width: 768px) and (max-width: 1199px) {
    .projects-grid {
        max-width: 800px;
        gap: 1.25rem;
    }
}

.project-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 220px;
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.project-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px var(--shadow-color);
    border-color: var(--primary-color);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    min-height: 3rem;
    flex-shrink: 0;
}

.project-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0;
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.3;
}

.project-status {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    flex-shrink: 0;
    margin-left: 0.5rem;
}

.project-status.available {
    background: var(--success-color);
    color: white;
}

.project-status.coming-soon {
    background: var(--warning-color);
    color: white;
}

.project-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    margin-bottom: 1rem;
    min-height: 0;
}

.project-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    text-overflow: ellipsis;
    overflow: hidden;
    transition: var(--transition);
}

.project-links {
    display: flex;
    gap: 0.5rem;
    margin-top: auto;
    opacity: 1;
    transition: opacity 0.3s ease;
    flex-shrink: 0;
}

.project-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
    line-height: 1;
}

.project-link:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
}

.project-link.disabled {
    background: var(--text-secondary);
    cursor: not-allowed;
    opacity: 0.6;
}

.project-link svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    display: block;
}

/* Project Card Background Images */
.project-card.working-hours::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('https://static.rustore.ru/apk/2063630184/content/ICON/736dbf8a-1020-4c47-aa0d-1c4bf0e6b905.png');
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    z-index: -1;
    transition: var(--transition);
}

.project-card.task-time::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('https://static.rustore.ru/apk/2063641462/content/ICON/14f47c37-18be-4ac5-bdfc-b3ed1a3f9c31.png');
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    z-index: -1;
    transition: var(--transition);
}

.project-card.friends-activity::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('https://static.rustore.ru/imgproxy/NU10547GtZPHjp_qz5WyR2hAokj1nV2zOEQfG1fk3ZM/preset:web_app_icon_160/plain/https://static.rustore.ru/2025/9/23/a9/apk/2063658861/content/ICON/969c338c-f621-4f07-9d19-7bc02155ab92.png@webp');
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    z-index: -1;
    transition: var(--transition);
}

.project-card.wot-calc::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('https://static.rustore.ru/apk/2063629092/content/ICON/56321150-ce50-4de9-9ab1-4640d610e6ec.png');
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    z-index: -1;
    transition: var(--transition);
}

.project-card.feeling-diary::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('https://static.rustore.ru/apk/2063623383/content/ICON/8204af49-41bc-4c1f-88f2-a691059c082e.png');
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    z-index: -1;
    transition: var(--transition);
}

.project-card.appcradle-player::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('https://static.rustore.ru/imgproxy/aobwy7JAO8cE9lSgFenbQpVDT_5fzjsVFkmnhYHFuIM/preset:web_app_icon_160/plain/https://static.rustore.ru/2025/10/3/1f/apk/2063662230/content/ICON/bbaf02f7-6133-4c46-a5d4-5c2ef5712229.png@webp');
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    z-index: -1;
    transition: var(--transition);
}

.project-row:hover .project-card.friends-activity::before,
.project-row:hover .project-card.working-hours::before,
.project-row:hover .project-card.task-time::before,
.project-row:hover .project-card.wot-calc::before,
.project-row:hover .project-card.feeling-diary::before,
.project-row:hover .project-card.appcradle-player::before {
    opacity: 0.15;
    transform: scale(1.15);
}

.project-card.working-hours>*,
.project-card.task-time>*,
.project-card.wot-calc>*,
.project-card.feeling-diary>*,
.project-card.appcradle-player>* {
    position: relative;
    z-index: 1;
}

/* ==========================================================================
   Donate Section
   ========================================================================== */
.donate-content {
    text-align: center;
}

.donate-text {
    margin-bottom: 2rem;
}

.donate-text p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.donate-widget {
    display: flex;
    justify-content: center;
}

.donate-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    background: var(--gradient-primary);
    color: white;
    text-decoration: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1.0625rem;
    font-family: inherit;
    transition: var(--transition);
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.3);
    cursor: pointer;
}

.donate-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.45);
}

.donate-button svg {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
}

/* ==========================================================================
   Sport Section Styles
   ========================================================================== */
.sport-intro {
    display: flex;
    gap: 2rem;
    align-items: stretch;
    margin-bottom: 2rem;
}

.sport-intro-image {
    flex: 1;
    max-width: 25%;
    display: flex;
    align-items: center;
}

.sport-intro-image img {
    width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: cover;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.sport-intro-text {
    flex: 2;
    max-width: 75%;
    display: flex;
    align-items: center;
}

.sport-intro-text p {
    margin: 0;
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-color);
}

@media (max-width: 768px) {
    .sport-intro {
        flex-direction: column;
    }

    .sport-intro-image,
    .sport-intro-text {
        max-width: 100%;
    }
}

/* Certificates Gallery */
.certificates-gallery-static {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    margin: 16px 0;
}

.cert-item {
    display: flex;
    justify-content: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    padding: 8px;
    transition: box-shadow 0.2s;
}

.cert-item:hover,
.cert-item:focus {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.16);
}

.cert-img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 10px;
    object-fit: cover;
    cursor: pointer;
    transition: transform 0.2s;
}

.cert-img:hover,
.cert-img:focus {
    transform: scale(1.04);
}

@media (max-width: 700px) {
    .certificates-gallery-static {
        grid-template-columns: 1fr;
    }
}

/* ==========================================================================
   Photography Section Styles
   ========================================================================== */
.photography-intro {
    margin-bottom: 2rem;
}

.photography-text {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: 1.5rem;
}

.photography-content {
    display: grid;
    gap: 2rem;
}

.photo-category-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* Smart Gallery */
.smart-gallery-container {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    width: 100%;
    overflow: hidden;
}

.smart-gallery {
    column-count: 4;
    column-gap: 0.5rem;
    margin: 1rem 0;
    width: 100%;
    overflow: hidden;
}

.smart-gallery-item {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    transition: var(--transition);
    break-inside: avoid;
    margin-bottom: 0.5rem;
    display: block;
}

.smart-gallery-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    max-width: 100%;
}

@media (max-width: 1200px) {
    .smart-gallery {
        column-count: 3;
    }
}

@media (max-width: 768px) {
    .smart-gallery {
        column-count: 2;
        column-gap: 0.4rem;
    }

    .smart-gallery-item {
        margin-bottom: 0.4rem;
    }
}

@media (max-width: 480px) {
    .smart-gallery {
        column-count: 1;
        column-gap: 0.3rem;
    }

    .smart-gallery-item {
        margin-bottom: 0.3rem;
    }
}

/* ==========================================================================
   Milestones (Timeline)
   ========================================================================== */
.milestones {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    position: relative;
    padding-left: 1rem;
}

.milestones::before {
    content: '';
    position: absolute;
    left: 3.75rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary-color), transparent);
    opacity: 0.3;
}

.milestone-card {
    display: flex;
    gap: 1.5rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.milestone-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 20px var(--shadow-light);
}

.milestone-year {
    flex-shrink: 0;
    width: 5rem;
    height: 5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 50%;
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    letter-spacing: -0.5px;
    position: relative;
    z-index: 1;
}

.milestone-content {
    flex: 1;
    min-width: 0;
}

.milestone-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0 0 0.5rem;
}

.milestone-text {
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0 0 0.75rem;
}

.milestone-text strong {
    color: var(--primary-light);
}

/* ==========================================================================
   Project Rows (merged tech + projects)
   ========================================================================== */
.projects-section-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin: 0 0 1.5rem;
}

.project-row {
    display: flex;
    gap: 1.5rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
    transition: var(--transition);
    margin-bottom: 1.25rem;
    overflow: hidden;
    cursor: pointer;
}

.project-row:last-child {
    margin-bottom: 0;
}

.project-row:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 20px var(--shadow-light);
}

.project-row-card {
    flex: 0 0 320px;
    display: flex;
}

.project-row-card .project-card {
    height: auto;
    min-height: 200px;
    border-radius: 0;
    border: none;
    background: transparent;
    backdrop-filter: none;
    flex: 1;
}

.project-row-card .project-card:hover {
    transform: none;
    box-shadow: none;
    border-color: transparent;
}

.project-row-card .project-card::before {
    mask-image: linear-gradient(to right, black 40%, transparent 75%);
    -webkit-mask-image: linear-gradient(to right, black 40%, transparent 75%);
}

.project-row-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 1.5rem 1.5rem 1.5rem 0;
    min-width: 0;
}

.project-row-description {
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0 0 1rem;
}

@media (max-width: 900px) {
    .project-row {
        flex-direction: column;
    }

    .project-row-card {
        flex: none;
    }

    .project-row-card .project-card {
        min-height: 180px;
        border-bottom: 1px solid var(--glass-border);
    }

    .project-row-card .project-card::before {
        mask-image: linear-gradient(to bottom, black 40%, transparent 75%);
        -webkit-mask-image: linear-gradient(to bottom, black 40%, transparent 75%);
    }

    .project-row-info {
        padding: 0 1.25rem 1.25rem;
    }
}

@media (max-width: 768px) {
    .milestone-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .milestones::before {
        left: 2.5rem;
    }

    .milestone-year {
        width: 3.5rem;
        height: 3.5rem;
        font-size: 1rem;
    }
}

/* ==========================================================================
   Tech Chips
   ========================================================================== */
.tech-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-chip {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid;
    transition: var(--transition);
    white-space: nowrap;
}

.tech-chip:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.tech-chip[data-category="language"] {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.tech-chip[data-category="ui"] {
    border-color: #60a5fa;
    color: #60a5fa;
}

.tech-chip[data-category="architecture"] {
    border-color: #34d399;
    color: #34d399;
}

.tech-chip[data-category="di"],
.tech-chip[data-category="state"] {
    border-color: var(--warning-color);
    color: var(--warning-color);
}

.tech-chip[data-category="async"] {
    border-color: #2dd4bf;
    color: #2dd4bf;
}

.tech-chip[data-category="db"] {
    border-color: #f472b6;
    color: #f472b6;
}

.tech-chip[data-category="network"] {
    border-color: #67e8f9;
    color: #67e8f9;
}

.tech-chip[data-category="platform"] {
    border-color: #fbbf24;
    color: #fbbf24;
}