/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Color palette in hex format */
    --background: #1a1d29;
    --foreground: #e2e8f0;
    --card: #24293838;
    --card-foreground: #f1f5f9;
    --primary: #3b82f6;
    --primary-foreground: #1e293b;
    --secondary: #334155;
    --secondary-foreground: #cbd5e1;
    --muted: #374151;
    --muted-foreground: #9ca3af;
    --accent: #06b6d4;
    --border: #475569;
    --input: #1e293b;

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background);
    color: var(--foreground);
    line-height: 1.6;
}

/* Grid background */
.grid-background {
    position: fixed;
    inset: 0;
    opacity: 0.1;
    z-index: 1;
    background-image:
        linear-gradient(var(--primary) 1px, transparent 1px),
        linear-gradient(90deg, var(--primary) 1px, transparent 1px);
    background-size: 50px 50px;
}

/* Layout */
.container {
    position: relative;
    z-index: 10;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.main-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    min-height: calc(100vh - 4rem);
}

@media (min-width: 1024px) {
    .main-grid {
        grid-template-columns: 350px 1fr;
    }
}

/* Profile Panel */
.profile-panel {
    position: relative;
}

.profile-card {
    background: var(--card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--primary);
    border-radius: 1rem;
    padding: 2rem;
    position: sticky;
    top: 2rem;
    height: fit-content;
}

.avatar-container {
    text-align: center;
    margin-bottom: 1.5rem;
}

.avatar {
    position: relative;
    display: inline-block;
}

.avatar-image {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    border: 3px solid var(--primary);
    object-fit: cover;
}

.status-indicator {
    position: absolute;
    bottom: 8px;
    right: 8px;
    width: 20px;
    height: 20px;
    background: #22c55e;
    border: 3px solid var(--card);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

.profile-info {
    text-align: center;
    margin-bottom: 2rem;
}

.profile-name {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--foreground);
    margin-bottom: 0.5rem;
}

.profile-title {
    font-size: 1.125rem;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 1rem;
}

.profile-description {
    color: var(--muted-foreground);
    font-size: 0.875rem;
    line-height: 1.5;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--card);
    border: 1px solid var(--primary);
    border-radius: 0.5rem;
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--primary);
    transform: translateY(-2px);
}

.social-icon {
    width: 20px;
    height: 20px;
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tag {
    background: var(--secondary);
    color: var(--secondary-foreground);
    padding: 0.25rem 0.75rem;
    border-radius: 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    border: 1px solid var(--border);
}

/* Content Panel */
.content-panel {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Tab Navigation */
.tab-navigation {
    display: flex;
    background: var(--card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--primary);
    border-radius: 0.75rem;
    padding: 0.25rem;
}

.tab-button {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--muted-foreground);
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.tab-button:hover {
    color: var(--foreground);
    background: var(--muted);
}

.tab-button.active {
    background: var(--primary);
    color: var(--primary-foreground);
}

/* Tab Content */
.tab-content {
    flex: 1;
}

.tab-pane {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}

.tab-pane.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tab-description {
    text-align: center;
    margin-bottom: 2rem;
}

.tab-description p {
    color: var(--muted-foreground);
    font-size: 1rem;
}

/* Accordion Styles */
.accordion-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.accordion-item {
    background: var(--card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--primary);
    border-radius: 1rem;
    overflow: hidden;
}

.accordion-trigger {
    width: 100%;
    background: transparent;
    border: none;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
}

.accordion-trigger:hover {
    background: var(--muted);
}

.accordion-trigger span:first-child {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--foreground);
}

.accordion-badge {
    display: none;
    font-size: 0.75rem;
    color: var(--primary);
    background: var(--card);
    border: 1px solid var(--primary);
    border-radius: 0.5rem;
    padding: 0.25rem 0.75rem;
    margin-left: 0.5rem;
}

@media (min-width: 768px) {
    .accordion-badge {
        display: inline-block;
    }
}

.accordion-icon {
    width: 20px;
    height: 20px;
    color: var(--muted-foreground);
    transition: var(--transition);
    flex-shrink: 0;
}

.accordion-trigger.active .accordion-icon {
    transform: rotate(180deg);
    color: var(--primary);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out, opacity 0.3s ease-out;
    opacity: 0;
}

.accordion-content.active {
    max-height: 2000px;
    opacity: 1;
    padding: 0 1.5rem 1.5rem;
}

.accordion-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

@media (min-width: 640px) {
    .accordion-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .accordion-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Content Card Styles */
.content-card {
    background: var(--card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--primary);
    border-radius: 0.75rem;
    overflow: hidden;
    transition: var(--transition);
    position: relative;
}

.content-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px var(--primary);
    border-color: var(--primary);
}

.card-image {
    width: 100%;
    height: 150px;
    object-fit: cover;
    transition: var(--transition);
}

.content-card:hover .card-image {
    transform: scale(1.05);
}

.card-content {
    padding: 1rem;
    position: relative;
}

.card-content h4 {
    color: var(--foreground);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    transition: var(--transition);
}

.content-card:hover .card-content h4 {
    color: var(--primary);
}

.card-content p {
    color: var(--muted-foreground);
    font-size: 0.875rem;
    line-height: 1.4;
    margin-bottom: 0.75rem;
}

.card-link {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 32px;
    height: 32px;
    background: var(--background);
    backdrop-filter: blur(10px);
    border: 1px solid var(--primary);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
    opacity: 0;
}

.content-card:hover .card-link {
    opacity: 1;
}

.card-link:hover {
    background: var(--primary);
    transform: scale(1.1);
}

.card-link svg {
    width: 14px;
    height: 14px;
}

/* Contact Form */
.contact-form-container {
    background: var(--card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--primary);
    border-radius: 1rem;
    padding: 2rem;
    max-width: 600px;
    margin: 0 auto;
}

.form-header {
    text-align: center;
    margin-bottom: 2rem;
}

.form-header h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--foreground);
    margin-bottom: 0.5rem;
}

.form-header p {
    color: var(--muted-foreground);
    font-size: 0.875rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

@media (min-width: 640px) {
    .form-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--foreground);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--background);
    border: 1px solid var(--primary);
    border-radius: 0.5rem;
    padding: 0.75rem;
    color: var(--foreground);
    font-size: 0.875rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.submit-button {
    width: 100%;
    background: var(--primary);
    color: var(--primary-foreground);
    border: none;
    border-radius: 0.5rem;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.submit-button:hover {
    background: hsl(210, 70%, 55%);
    transform: translateY(-1px);
}

.button-icon {
    width: 16px;
    height: 16px;
}

/* Files Grid */
.files-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
    margin-bottom: 2rem;
}

@media (min-width: 640px) {
    .files-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.file-card {
    background: var(--card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--primary);
    border-radius: 1rem;
    padding: 1.5rem;
    transition: var(--transition);
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.file-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px var(--primary);
    border-color: var(--primary);
}

.file-icon {
    font-size: 2rem;
    padding: 0.75rem;
    background: var(--primary);
    border: 1px solid var(--primary);
    border-radius: 0.75rem;
    flex-shrink: 0;
}

.file-info {
    flex: 1;
}

.file-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

.file-header h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--foreground);
}

.file-size {
    font-size: 0.75rem;
    color: var(--muted-foreground);
    background: var(--muted);
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
}

.file-info p {
    color: var(--muted-foreground);
    font-size: 0.875rem;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.download-button {
    width: 100%;
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
    border-radius: 0.5rem;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.download-button:hover {
    background: var(--primary);
}

.request-files {
    background: var(--card);
    backdrop-filter: blur(20px);
    border: 1px solid var(--primary);
    border-radius: 1rem;
    padding: 1.5rem;
    text-align: center;
}

.request-files h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--foreground);
    margin-bottom: 0.75rem;
}

.request-files p {
    color: var(--muted-foreground);
    font-size: 0.875rem;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.contact-button {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
    border-radius: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.contact-button:hover {
    background: var(--primary);
}

/* Footer */
.footer {
    margin-top: 4rem;
    background: var(--card);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--border);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.footer-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    text-align: center;
}

@media (min-width: 640px) {
    .footer-info {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer-info p {
    color: var(--muted-foreground);
    font-size: 0.875rem;
}

.footer-stats {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.stats-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--muted-foreground);
    font-size: 0.875rem;
}

.stats-icon {
    font-size: 1rem;
}

#daily-visits {
    color: var(--primary);
    font-weight: 600;
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .container {
        padding: 1rem;
    }

    .profile-card {
        padding: 1.5rem;
    }

    .tab-button {
        padding: 0.625rem 0.75rem;
        font-size: 0.875rem;
    }

    .content-card {
        padding: 1.25rem;
    }

    .contact-form-container {
        padding: 1.5rem;
    }

    /* Адаптивный контейнер со скруглением */
    .ym-embed__frame {
        position: relative;
        width: 100%;
        /* если нужен фикс высоты (карточка-плеер), можно поставить 180–360px */
        height: 320px;
        overflow: hidden;
        border-radius: var(--radius, 16px);
        box-shadow: var(--shadow-lg, 0 10px 25px rgba(0, 0, 0, .12));
    }

    .ym-embed__frame iframe {
        position: absolute;
        inset: 0;
        width: 100%;
        height: 100%;
    }

    .ym-embed__caption {
        margin-top: .5rem;
        color: var(--muted-foreground);
        font-size: .9rem;
    }

}