/* ============================================
   БАЗОВІ СТИЛІ ТА ЗМІННІ
   ============================================ */

:root {
    /* Кольорова схема - МОЖЕТЕ ЗМІНИТИ на свій смак */
    --color-primary: #2563eb;      /* Синій акцент */
    --color-primary-dark: #1d4ed8;
    --color-primary-light: #3b82f6;
    --color-black: #0f172a;
    --color-gray-dark: #334155;
    --color-gray: #64748b;
    --color-gray-light: #e2e8f0;
    --color-white: #ffffff;
    
    /* Відступи */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Типографія */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Швидкість анімацій */
    --transition-speed: 0.3s;
    
    /* Тіні */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

/* ============================================
   RESET ТА БАЗОВІ СТИЛІ
   ============================================ */

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

html {
    scroll-behavior: smooth;
    scroll-snap-type: y proximity;
}

body {
    font-family: var(--font-family);
    color: var(--color-white);
    background: radial-gradient(125% 125% at 50% 100%, #000000 40%, #010133 100%);
    background-attachment: fixed;
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================
   ТИПОГРАФІЯ
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-black);
}

p {
    color: var(--color-gray-dark);
    margin-bottom: var(--spacing-sm);
}

a {
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-speed) ease;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero-section {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    position: relative;
    scroll-snap-align: start;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

.hero-image {
    margin-bottom: var(--spacing-md);
    position: relative;
}

.hero-image img {
    width: 250px;
    height: 250px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 50px rgba(37, 99, 235, 0.3), 0 10px 30px rgba(0, 0, 0, 0.5);
    transition: all var(--transition-speed) ease;
}

.hero-image img:hover {
    transform: scale(1.05);
    box-shadow: 0 0 60px rgba(37, 99, 235, 0.5), 0 15px 40px rgba(0, 0, 0, 0.6);
}

.hero-text {
    max-width: 700px;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, #ffffff 0%, var(--color-primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

/* Соціальні мережі в Hero */
.social-links {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.social-links a {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-speed) ease;
}

.social-links a:hover {
    background-color: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.5);
}

/* Кнопка scroll вниз */
.scroll-down {
    display: inline-block;
    margin-top: var(--spacing-md);
    color: rgba(255, 255, 255, 0.7);
    font-size: 2rem;
    animation: bounce 2s infinite;
}

.scroll-down:hover {
    color: var(--color-primary-light);
}

/* ============================================
   СЕКЦІЇ (загальні стилі)
   ============================================ */

section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    margin-top: 0;
    position: relative;
    display: inline-block;
    width: 100%;
    color: var(--color-white);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
}

/* ============================================
   ПРО МЕНЕ
   ============================================ */

.about-section {
    background-color: var(--color-white);
    margin-top: 0;
    position: relative;
    z-index: 10;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease-out forwards;
}

.about-content p:nth-child(1) {
    animation-delay: 0.1s;
}

.about-content p:nth-child(2) {
    animation-delay: 0.2s;
}

.about-content p:nth-child(3) {
    animation-delay: 0.3s;
}

/* ============================================
   МОЇ ПРОЄКТИ
   ============================================ */

.projects-section {
    background: transparent;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--spacing-xl) * 2) 0 var(--spacing-xl);
    scroll-snap-align: start;
    margin-top: var(--spacing-xl);
}

.projects-section .container {
    width: 100%;
}

.projects-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.project-card {
    background-color: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: all var(--transition-speed) ease;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease-out forwards;
    flex: 0 1 400px;
    max-width: 400px;
    overflow: hidden;
}

.project-card:nth-child(1) {
    animation-delay: 0.1s;
}

.project-card:nth-child(2) {
    animation-delay: 0.2s;
}

.project-card:nth-child(3) {
    animation-delay: 0.3s;
}

.project-card:nth-child(4) {
    animation-delay: 0.4s;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 40px rgba(37, 99, 235, 0.4);
    border-color: rgba(37, 99, 235, 0.5);
    background-color: rgba(255, 255, 255, 0.08);
}

.project-preview {
    width: 100%;
    height: 220px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
}

.project-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-speed) ease;
}

.project-card:hover .project-preview img {
    transform: scale(1.1);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(37, 99, 235, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-speed) ease;
    font-size: 2rem;
    color: var(--color-white);
}

.project-card:hover .project-overlay {
    opacity: 1;
}

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

.project-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-white);
}

.project-description {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-primary);
    font-weight: 600;
    transition: all var(--transition-speed) ease;
}

.project-link:hover {
    gap: 0.75rem;
    color: var(--color-primary-dark);
}

.project-link i {
    font-size: 0.875rem;
}

/* ============================================
   КОНТАКТИ/СОЦМЕРЕЖІ
   ============================================ */

.contact-section {
    background-color: var(--color-white);
    text-align: center;
}

.contact-text {
    font-size: 1.125rem;
    color: var(--color-gray-dark);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

.contact-social {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
    align-items: center;
}

.contact-social-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background-color: var(--color-white);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    min-width: 140px;
    transition: all var(--transition-speed) ease;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease-out forwards;
}

.contact-social-link:nth-child(1) {
    animation-delay: 0.1s;
}

.contact-social-link:nth-child(2) {
    animation-delay: 0.2s;
}

.contact-social-link:nth-child(3) {
    animation-delay: 0.3s;
}

.contact-social-link:nth-child(4) {
    animation-delay: 0.4s;
}

.contact-social-link i {
    font-size: 2.5rem;
    transition: all var(--transition-speed) ease;
}

.contact-social-link span {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-gray-dark);
}

.contact-social-link:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

/* Індивідуальні кольори для соцмереж */
.contact-social-link.instagram:hover {
    background: linear-gradient(135deg, #f58529 0%, #dd2a7b 50%, #8134af 100%);
}

.contact-social-link.telegram:hover {
    background-color: #0088cc;
}

.contact-social-link.facebook:hover {
    background-color: #1877f2;
}

.contact-social-link.github:hover {
    background-color: var(--color-black);
}

.contact-social-link.instagram:hover i,
.contact-social-link.telegram:hover i,
.contact-social-link.facebook:hover i,
.contact-social-link.github:hover i,
.contact-social-link.instagram:hover span,
.contact-social-link.telegram:hover span,
.contact-social-link.facebook:hover span,
.contact-social-link.github:hover span {
    color: var(--color-white);
}

/* ============================================
   ЗЛИВИ З ЯКІСНИМ КОНТЕНТОМ
   ============================================ */

.content-section {
    background: transparent;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: calc(var(--spacing-xl) * 2) 0;
    scroll-snap-align: start;
}

.content-section .container {
    width: 100%;
}

.content-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-lg);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.telegram-preview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.telegram-widget {
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 20px;
    padding: var(--spacing-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.telegram-widget iframe {
    border-radius: 16px !important;
    box-shadow: 0 12px 40px rgba(37, 99, 235, 0.3) !important;
    border: 2px solid rgba(255, 255, 255, 0.1) !important;
}

.content-cta {
    text-align: center;
    margin-top: var(--spacing-lg);
}

.join-channel-btn {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 3rem;
    background: linear-gradient(135deg, #2AABEE 0%, #229ED9 100%);
    color: var(--color-white);
    border-radius: 16px;
    font-size: 1.125rem;
    font-weight: 600;
    text-decoration: none;
    box-shadow: 0 8px 24px rgba(42, 171, 238, 0.4);
    transition: all var(--transition-speed) ease;
    margin-bottom: var(--spacing-md);
}

.join-channel-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 32px rgba(42, 171, 238, 0.6);
}

.join-channel-btn i:first-child {
    font-size: 1.5rem;
}

.join-channel-btn i:last-child {
    transition: transform var(--transition-speed) ease;
}

.join-channel-btn:hover i:last-child {
    transform: translateX(5px);
}

.subscribers-hint {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95rem;
    margin-top: var(--spacing-sm);
}

/* Адаптивність для секції контенту */
@media (max-width: 768px) {
    .telegram-preview {
        grid-template-columns: 1fr;
    }
    
    .telegram-widget {
        min-height: 300px;
    }
    
    .join-channel-btn {
        padding: 1rem 2rem;
        font-size: 1rem;
    }
}

/* ============================================
   ПІДТРИМКА
   ============================================ */

.support-section {
    background: transparent;
    padding: calc(var(--spacing-xl) * 2) 0;
    text-align: center;
    scroll-snap-align: start;
}

.support-text {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    line-height: 1.8;
}

.support-methods {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    justify-content: center;
    align-items: stretch;
    margin-top: var(--spacing-lg);
}

.support-card {
    background-color: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-lg);
    border-radius: 20px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 20px rgba(37, 99, 235, 0.2);
    transition: all var(--transition-speed) ease;
    flex: 0 1 300px;
    max-width: 350px;
    display: flex;
    flex-direction: column;
    align-items: center;
    opacity: 0;
    transform: translateY(30px);
}

.support-card.is-visible {
    opacity: 1;
    transform: translateY(0);
    animation: fadeInUp 0.8s ease-out forwards;
}

.support-card:nth-child(1) {
    transition-delay: 0.1s;
}

.support-card:nth-child(2) {
    transition-delay: 0.2s;
}

.support-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(37, 99, 235, 0.5), 0 0 40px rgba(37, 99, 235, 0.3);
    border-color: rgba(37, 99, 235, 0.5);
    background-color: rgba(255, 255, 255, 0.08);
}

.support-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    transition: all var(--transition-speed) ease;
}

.monobank-icon {
    background: linear-gradient(135deg, #000000 0%, #1a1a1a 100%);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.paypal-icon {
    background: linear-gradient(135deg, #0070ba 0%, #1546a0 100%);
    box-shadow: 0 4px 20px rgba(0, 112, 186, 0.5);
}

.support-card:hover .support-icon {
    transform: scale(1.1) rotate(5deg);
}

.support-method-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
    color: var(--color-white);
}

.support-description {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-md);
    font-size: 0.95rem;
}

.support-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    transition: all var(--transition-speed) ease;
    cursor: pointer;
    border: none;
    text-decoration: none;
    margin-top: auto;
}

.monobank-btn {
    background: linear-gradient(135deg, #000000 0%, #2a2a2a 100%);
    color: var(--color-white);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.monobank-btn:hover {
    background: linear-gradient(135deg, #1a1a1a 0%, #3a3a3a 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.5);
}

.paypal-btn {
    background: linear-gradient(135deg, #0070ba 0%, #003087 100%);
    color: var(--color-white);
    box-shadow: 0 4px 15px rgba(0, 112, 186, 0.3);
}

.paypal-btn:hover {
    background: linear-gradient(135deg, #0087d1 0%, #0047a0 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 112, 186, 0.5);
}

.support-button i {
    font-size: 1.1rem;
}

.payment-email {
    margin-top: var(--spacing-md);
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
}

.payment-email i.fa-envelope {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

.email-text {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
    font-family: 'Courier New', monospace;
    user-select: all;
}


/* ============================================
   ФУТЕР
   ============================================ */

.footer {
    background-color: transparent;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-white);
    padding: var(--spacing-lg) 0;
    text-align: center;
}

.footer p {
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
    font-size: 0.95rem;
}

/* ============================================
   АНІМАЦІЇ
   ============================================ */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* ============================================
   RESPONSIVE (АДАПТИВНІСТЬ)
   ============================================ */

/* Планшети (768px і менше) */
@media (max-width: 768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-image img {
        width: 200px;
        height: 200px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    /* Картки проєктів в 2 колонки */
    .project-card {
        flex: 1 1 calc(50% - var(--spacing-sm));
        min-width: 0;
        max-width: none;
    }
    
    .project-preview {
        height: 180px;
    }
    
    .project-info {
        padding: var(--spacing-sm);
    }
    
    .project-title {
        font-size: 1.125rem;
    }
    
    .project-description {
        font-size: 0.875rem;
    }
    
    /* Картки підтримки */
    .support-card {
        flex: 1 1 calc(50% - var(--spacing-sm));
        min-width: 0;
        max-width: none;
        padding: var(--spacing-md);
    }
    
    .support-icon {
        width: 60px;
        height: 60px;
        font-size: 2rem;
    }
    
    .support-method-title {
        font-size: 1.25rem;
    }
}

/* Мобільні телефони (480px і менше) */
@media (max-width: 480px) {
    :root {
        --spacing-md: 1rem;
        --spacing-lg: 2rem;
        --spacing-xl: 3rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-image img {
        width: 150px;
        height: 150px;
    }
    
    .section-title {
        font-size: 1.5rem;
        margin-bottom: var(--spacing-md);
    }
    
    .social-links a {
        width: 45px;
        height: 45px;
        font-size: 1.25rem;
    }
    
    /* Картки проєктів в 2 колонки на маленьких екранах */
    .projects-grid {
        gap: var(--spacing-xs);
    }
    
    .project-card {
        flex: 1 1 calc(50% - 0.5rem);
    }
    
    .project-preview {
        height: 140px;
    }
    
    .project-overlay {
        font-size: 1.5rem;
    }
    
    .project-info {
        padding: 0.75rem;
    }
    
    .project-title {
        font-size: 1rem;
        margin-bottom: 0.5rem;
    }
    
    .project-description {
        font-size: 0.75rem;
        line-height: 1.5;
        margin-bottom: var(--spacing-xs);
    }
    
    .project-link {
        font-size: 0.875rem;
    }
    
    /* Картки підтримки */
    .support-methods {
        gap: var(--spacing-xs);
    }
    
    .support-card {
        flex: 1 1 calc(50% - 0.5rem);
        padding: var(--spacing-sm);
    }
    
    .support-icon {
        width: 50px;
        height: 50px;
        font-size: 1.75rem;
    }
    
    .support-method-title {
        font-size: 1.125rem;
    }
    
    .support-description {
        font-size: 0.85rem;
    }
    
    .support-button {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
}

/* Великі екрани (1400px і більше) */
@media (min-width: 1400px) {
    .container {
        max-width: 1400px;
    }
    
    .hero-title {
        font-size: 4rem;
    }
    
    .hero-image img {
        width: 300px;
        height: 300px;
    }
}

/* ============================================
   ДОСТУПНІСТЬ
   ============================================ */

/* Видаляємо outline для мишки, але залишаємо для клавіатури */
*:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

*:focus:not(:focus-visible) {
    outline: none;
}

/* Prefers reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}