/* =========================================
   CSS Variables & Base Styles
   ========================================= */
:root {
    /* Colors */
    --color-primary: #667eea;
    --color-primary-dark: #5a67d8;
    --color-secondary: #f093fb;
    --color-accent: #4facfe;
    
    --color-bg: #0f0f1a;
    --color-bg-light: #1a1a2e;
    --color-bg-card: #16213e;
    
    --color-text: #e2e8f0;
    --color-text-muted: #94a3b8;
    --color-text-light: #cbd5e1;
    
    --color-border: rgba(255, 255, 255, 0.1);
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-hero: linear-gradient(135deg, #0f0f1a 0%, #1a1a2e 50%, #16213e 100%);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Spacing */
    --section-padding: 120px;
    --container-width: 1200px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 40px rgba(102, 126, 234, 0.3);
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

input, textarea {
    font-family: inherit;
    border: none;
    outline: none;
}

/* Container */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* =========================================
   Buttons
   ========================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    white-space: nowrap;
}

.btn--primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.4);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(102, 126, 234, 0.5);
}

.btn--outline {
    background: transparent;
    color: var(--color-text);
    border: 2px solid var(--color-border);
}

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

/* =========================================
   Button Up
   ========================================= */
.btn-up {
    position: fixed;
    right: 30px;
    bottom: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: 100;
    box-shadow: var(--shadow-lg);
}

.btn-up.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.btn-up:hover {
    transform: translateY(-3px);
}

/* =========================================
   Sidebar
   ========================================= */
.sidebar {
    position: fixed;
    left: 40px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    z-index: 50;
}

.sidebar__social {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sidebar__link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-card);
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    transition: all var(--transition-base);
}

.sidebar__link:hover {
    background: var(--gradient-primary);
    color: #fff;
    transform: translateY(-2px);
}

.sidebar__line {
    width: 2px;
    height: 60px;
    background: var(--color-border);
}

.sidebar__text {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--color-text-muted);
}

/* =========================================
   Mobile Menu
   ========================================= */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-menu__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
}

.mobile-menu__content {
    position: relative;
    width: 320px;
    height: 100%;
    background: var(--color-bg-light);
    padding: 80px 40px 40px;
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
    z-index: 1;
}

.mobile-menu.active .mobile-menu__content {
    transform: translateX(0);
}

.mobile-menu__close {
    position: absolute;
    top: 24px;
    right: 24px;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text);
    transition: color var(--transition-fast);
}

.mobile-menu__close:hover {
    color: var(--color-primary);
}

.mobile-menu__nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mobile-menu__link {
    padding: 12px 0;
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-text);
    transition: color var(--transition-fast);
}

.mobile-menu__link:hover {
    color: var(--color-primary);
}

.mobile-menu__social {
    margin-top: auto;
    padding-top: 40px;
    display: flex;
    gap: 20px;
}

.mobile-menu__social a {
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

.mobile-menu__social a:hover {
    color: var(--color-primary);
}

/* =========================================
   Hero Section
   ========================================= */
.hero {
    min-height: 100vh;
    background: var(--gradient-hero);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 24px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(102, 126, 234, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(240, 147, 251, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

/* Hamburger */
.hamburger {
    position: absolute;
    top: 30px;
    right: 30px;
    width: 40px;
    height: 30px;
    display: none;
    flex-direction: column;
    justify-content: space-between;
    z-index: 150;
    cursor: pointer;
    background: transparent;
    border: none;
    padding: 0;
}

/* Logo */
.logo {
    position: absolute;
    top: 20px;
    left: 30px;
    z-index: 100;
}

.logo__img {
    height: 50px;
    width: auto;
    transition: transform var(--transition-base);
}

.logo:hover .logo__img {
    transform: scale(1.05);
}

.hamburger span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.hamburger span:nth-child(2) {
    width: 70%;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Header Nav */
.header-nav {
    position: absolute;
    top: 30px;
    right: 30px;
    display: flex;
    gap: 32px;
    z-index: 100;
}

.header-nav__link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
    position: relative;
}

.header-nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

.header-nav__link:hover {
    color: var(--color-text);
}

.header-nav__link:hover::after {
    width: 100%;
}

/* Hero Content */
.hero__content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero__badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(102, 126, 234, 0.2);
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: 24px;
}

.hero__title {
    margin-bottom: 16px;
}

.hero__greeting {
    display: block;
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-text-muted);
    margin-bottom: 8px;
}

.hero__name {
    display: block;
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: 16px;
}

.hero__description {
    max-width: 500px;
    margin: 0 auto 32px;
    color: var(--color-text-muted);
}

.hero__actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Hero Scroll Indicator */
.hero__scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--color-text-muted);
    font-size: 0.75rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.hero__scroll-line {
    width: 1px;
    height: 60px;
    background: linear-gradient(to bottom, var(--color-primary), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0%, 100% { opacity: 0.3; transform: scaleY(0.5); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* =========================================
   Section Styles
   ========================================= */
.section {
    padding: var(--section-padding) 0;
}

.section__header {
    text-align: center;
    margin-bottom: 60px;
}

.section__label {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(102, 126, 234, 0.15);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 16px;
}

.section__title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    color: var(--color-text);
}

/* =========================================
   About Section
   ========================================= */
.about__content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: start;
}

.about__info {
    position: sticky;
    top: 100px;
}

.about__photo {
    aspect-ratio: 1;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    position: relative;
    overflow: hidden;
}

.about__photo-frame {
    position: absolute;
    inset: 0;
    background: 
        linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%),
        url('https://via.placeholder.com/400x400/1a1a2e/667eea?text=Photo') center/cover;
}

.about__stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 24px;
}

.stat {
    text-align: center;
    padding: 20px 12px;
    background: var(--color-bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.stat__number {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat__label {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 4px;
}

.about__quote {
    padding: 24px;
    background: var(--color-bg-card);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-md);
    font-style: italic;
    color: var(--color-text-light);
    margin-bottom: 24px;
}

.about__quote cite {
    display: block;
    margin-top: 12px;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-style: normal;
}

.about__text p {
    margin-bottom: 16px;
    color: var(--color-text-muted);
}

.about__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 24px;
}

.tag {
    padding: 6px 14px;
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    color: var(--color-primary);
}

/* =========================================
   Courses Section
   ========================================= */
.courses__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.course-card {
    display: flex;
    gap: 20px;
    padding: 28px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.course-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.course-card__icon {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(102, 126, 234, 0.15);
    border-radius: var(--radius-md);
    color: var(--color-primary);
}

.course-card__icon svg {
    width: 28px;
    height: 28px;
}

.course-card__content {
    flex: 1;
}

.course-card__platform {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(240, 147, 251, 0.15);
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--color-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
}

.course-card__title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    line-height: 1.4;
}

.course-card__desc {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-bottom: 12px;
}

.course-card__link {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-primary);
    transition: color var(--transition-fast);
}

.course-card__link:hover {
    color: var(--color-secondary);
}

.course-card__badge {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(79, 172, 254, 0.15);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-accent);
}

/* =========================================
   Skills Section
   ========================================= */
.skills {
    background: var(--color-bg-light);
}

.skills__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.skill-card {
    padding: 32px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.skill-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.skill-card__icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.skill-card__icon svg {
    width: 32px;
    height: 32px;
}

.skill-card__icon--html { background: rgba(227, 76, 38, 0.15); color: #e34c26; }
.skill-card__icon--js { background: rgba(247, 223, 30, 0.15); color: #f7df1e; }
.skill-card__icon--react { background: rgba(97, 218, 251, 0.15); color: #61dafb; }
.skill-card__icon--php { background: rgba(119, 123, 180, 0.15); color: #777bb4; }
.skill-card__icon--wp { background: rgba(33, 117, 155, 0.15); color: #21759b; }
.skill-card__icon--laravel { background: rgba(255, 45, 32, 0.15); color: #ff2d20; }
.skill-card__icon--bitrix { background: rgba(0, 175, 240, 0.15); color: #00aff0; }
.skill-card__icon--db { background: rgba(79, 172, 254, 0.15); color: #4facfe; }

.skill-card__title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.skill-card__desc {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

/* Skills Progress */
.skills__progress {
    margin-top: 60px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.progress-item {
    background: var(--color-bg-card);
    padding: 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.progress-item__header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
}

.progress-item__label {
    font-weight: 500;
}

.progress-item__value {
    font-family: var(--font-mono);
    color: var(--color-primary);
}

.progress-item__bar {
    height: 8px;
    background: var(--color-bg);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-item__fill {
    height: 100%;
    width: 0;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: width 1s ease-out;
}

.progress-item__fill.animated {
    width: var(--width);
}

/* =========================================
   Portfolio Section
   ========================================= */
.tabs__nav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 40px;
}

.tabs__btn {
    padding: 12px 28px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-muted);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

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

.tabs__btn.active {
    background: var(--gradient-primary);
    color: #fff;
    border-color: transparent;
}

.tabs__panel {
    display: none;
}

.tabs__panel.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.project-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.project-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.project-card.hidden {
    display: none;
}

.project-card__image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
}

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

.project-card:hover .project-card__image img {
    transform: scale(1.05);
}

.project-card__overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.project-card__link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--gradient-primary);
    color: #fff;
    border-radius: var(--radius-full);
    font-weight: 500;
    transform: translateY(10px);
    transition: transform var(--transition-base);
}

.project-card:hover .project-card__link {
    transform: translateY(0);
}

.project-card__content {
    padding: 24px;
}

.project-card__category {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(102, 126, 234, 0.15);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.project-card__title {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.project-card__desc {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.project-card__tech {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.project-card__tech span {
    padding: 4px 10px;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: var(--color-text-muted);
}

/* =========================================
   Blog Section
   ========================================= */
.blog {
    background: var(--color-bg-light);
}

.blog__categories {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 40px;
}

.blog__cat {
    padding: 10px 20px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-muted);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

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

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

.blog__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.blog-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.blog-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.blog-card.hidden {
    display: none;
}

.blog-card__image {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
}

.blog-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.blog-card:hover .blog-card__image img {
    transform: scale(1.05);
}

.blog-card__date {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 6px 12px;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: #fff;
}

.blog-card__content {
    padding: 24px;
}

.blog-card__category {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(240, 147, 251, 0.15);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    color: var(--color-secondary);
    margin-bottom: 12px;
}

.blog-card__title {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.4;
}

.blog-card__excerpt {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card__link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-primary);
    transition: color var(--transition-fast);
}

.blog-card__link:hover {
    color: var(--color-secondary);
}

.blog__more {
    text-align: center;
    margin-top: 48px;
}

/* =========================================
   Contacts Section
   ========================================= */
.contacts__wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: start;
}

.contacts__text {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin-bottom: 32px;
    line-height: 1.7;
}

.contacts__methods {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.contact-method:hover {
    border-color: var(--color-primary);
    transform: translateX(8px);
}

.contact-method__icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(102, 126, 234, 0.15);
    border-radius: var(--radius-sm);
    color: var(--color-primary);
}

.contact-method__label {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-bottom: 4px;
}

.contact-method__value {
    font-weight: 500;
    color: var(--color-text);
}

/* Contact Form */
.contact-form {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    background: var(--color-bg-card);
    padding: 40px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.contact-form__group {
    position: relative;
}

.contact-form__group--full {
    grid-column: 1 / -1;
}

.contact-form__group input,
.contact-form__group textarea {
    width: 100%;
    padding: 16px 20px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: 0.95rem;
    transition: border-color var(--transition-fast);
}

.contact-form__group textarea {
    resize: vertical;
    min-height: 140px;
}

.contact-form__group input:focus,
.contact-form__group textarea:focus {
    border-color: var(--color-primary);
}

.contact-form__group label {
    position: absolute;
    top: 50%;
    left: 20px;
    transform: translateY(-50%);
    font-size: 0.9rem;
    color: var(--color-text-muted);
    pointer-events: none;
    transition: all var(--transition-fast);
    background: var(--color-bg);
    padding: 0 8px;
}

.contact-form__group textarea + label {
    top: 20px;
    transform: none;
}

.contact-form__group input:focus + label,
.contact-form__group input:not(:placeholder-shown) + label,
.contact-form__group textarea:focus + label,
.contact-form__group textarea:not(:placeholder-shown) + label {
    top: 0;
    font-size: 0.75rem;
    color: var(--color-primary);
}

.contact-form__group textarea:focus + label,
.contact-form__group textarea:not(:placeholder-shown) + label {
    top: -8px;
}

.contact-form__footer {
    grid-column: 1 / -1;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.contact-form__policy {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    cursor: pointer;
}

.contact-form__policy input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
}

.contact-form__policy a {
    color: var(--color-primary);
}

.contact-form__policy a:hover {
    text-decoration: underline;
}

/* =========================================
   Footer
   ========================================= */
.footer {
    background: var(--color-bg-card);
    padding: 60px 0 24px;
    border-top: 1px solid var(--color-border);
}

.footer__content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 32px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--color-border);
}

.footer__brand {
    display: flex;
    align-items: center;
    gap: 16px;
}

.footer__logo {
    display: block;
    transition: transform var(--transition-base);
}

.footer__logo img {
    height: 50px;
    width: auto;
}

.footer__logo:hover {
    transform: scale(1.05);
}

.footer__brand p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    max-width: 200px;
}

.footer__nav {
    display: flex;
    gap: 24px;
}

.footer__nav a {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    transition: color var(--transition-fast);
}

.footer__nav a:hover {
    color: var(--color-text);
}

.footer__social {
    display: flex;
    gap: 12px;
}

.footer__social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
    transition: all var(--transition-base);
}

.footer__social a:hover {
    background: var(--gradient-primary);
    color: #fff;
}

.footer__bottom {
    padding-top: 24px;
    text-align: center;
}

.footer__bottom p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* =========================================
   Responsive Styles
   ========================================= */
@media (max-width: 1280px) {
    .sidebar {
        display: none;
    }
}

@media (max-width: 1024px) {
    :root {
        --section-padding: 80px;
    }
    
    .header-nav {
        display: none;
    }
    
    .hamburger {
        display: flex;
        top: 35px;
        left: auto;
        right: 20px;
    }
    
    .logo {
        left: 16px;
        top: 20px;
    }
    
    .logo__img {
        height: 50px;
    }
    
    .about__content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about__info {
        position: static;
        max-width: 400px;
        margin: 0 auto;
    }
    
    .skills__progress {
        grid-template-columns: 1fr;
    }
    
    .contacts__wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
    }
    
    .hero__actions {
        flex-direction: column;
        width: 100%;
        max-width: 280px;
        margin: 0 auto;
    }
    
    .hero__actions .btn {
        width: 100%;
    }
    
    .about__stats {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .courses__grid {
        grid-template-columns: 1fr;
    }
    
    .course-card {
        flex-direction: column;
        text-align: center;
    }
    
    .course-card__icon {
        margin: 0 auto;
    }
    
    .tabs__nav {
        gap: 8px;
    }
    
    .tabs__btn {
        padding: 10px 20px;
        font-size: 0.85rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .blog__grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form {
        grid-template-columns: 1fr;
        padding: 24px;
    }
    
    .contact-form__footer {
        flex-direction: column;
        align-items: stretch;
    }
    
    .contact-form__policy {
        order: 2;
        justify-content: center;
    }
    
    .footer__content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer__brand {
        flex-direction: column;
    }
    
    .footer__brand p {
        max-width: none;
    }
    
    .footer__nav {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .btn-up {
        right: 16px;
        bottom: 16px;
        width: 44px;
        height: 44px;
    }
    
    .hero {
        padding: 100px 16px 60px;
    }
    
    .hamburger {
        top: 20px;
        right: 16px;
        left: auto;
    }
    
    .about__stats {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .stat {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 16px 20px;
    }
    
    .stat__number {
        font-size: 1.5rem;
    }
    
    .skill-card {
        padding: 24px;
    }
    
    .tabs__nav {
        flex-direction: column;
        align-items: stretch;
    }
    
    .tabs__btn {
        text-align: center;
    }
    
    .blog__categories {
        flex-direction: column;
        align-items: stretch;
    }
    
    .blog__cat {
        text-align: center;
    }
}