:root {
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    
    --accent-color: #8b5cf6;
    --accent-dark: #7c3aed;
    
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-code: 'Courier New', monospace;
    
    --header-height: 4.5rem;
    --section-padding: 5rem 0;
    
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-full: 9999px;
}






body.dark-mode {
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-light: #94a3b8;
    
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    
    --glass-bg: rgba(15, 23, 42, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    transition: background-color var(--transition-base), color var(--transition-base);
}

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

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

ul {
    list-style: none;
}

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

input,
textarea,
button {
    font-family: inherit;
}

.cursor,
.cursor-follower {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    transition: transform var(--transition-fast);
}

.cursor {
    background-color: var(--primary-color);
    mix-blend-mode: difference;
}

.cursor-follower {
    width: 40px;
    height: 40px;
    border: 2px solid var(--primary-color);
    background: transparent;
    transition: transform 0.15s ease, width 0.3s ease, height 0.3s ease;
    opacity: 0.5;
}

body.dark-mode .cursor,
body.dark-mode .cursor-follower {
    border-color: var(--primary-light);
}

@media (max-width: 768px) {
    .cursor,
    .cursor-follower {
        display: none;
    }
}

.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader {
    width: 50px;
    height: 50px;
    border: 4px solid var(--bg-tertiary);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: var(--section-padding);
}

.section__title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section__subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

body.dark-mode .glass-card {
    background: rgba(30, 41, 59, 0.7);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    transition: all var(--transition-base);
}

.header.scroll-header {
    box-shadow: var(--shadow-md);
}

.nav {
    height: var(--header-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav__logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-code);
}

.logo-bracket {
    color: var(--primary-color);
}

.nav__list {
    display: flex;
    gap: 2rem;
}

.nav__link {
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transition: width var(--transition-base);
}

.nav__link:hover,
.nav__link.active-link {
    color: var(--primary-color);
}

.nav__link:hover::after,
.nav__link.active-link::after {
    width: 100%;
}

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

.theme-toggle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-secondary);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.theme-toggle:hover {
    transform: rotate(20deg) scale(1.1);
    background: var(--primary-color);
    color: white;
}

.nav__toggle,
.nav__close {
    display: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
}


@media screen and (max-width: 768px) {
    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: var(--bg-primary);
        padding: 6rem 2rem 2rem;
        transition: right var(--transition-base);
        box-shadow: var(--shadow-xl);
    }

    .nav__menu.show-menu {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        gap: 2rem;
    }

    .nav__link {
        font-size: 1.25rem;
    }

    .nav__close {
        display: block;
        position: absolute;
        top: 1.5rem;
        right: 1.5rem;
    }

    .nav__toggle {
        display: block;
    }
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    z-index: -1;
}

.hero__container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
    align-items: center;
}

.hero__content {
    animation: fadeInUp 1s ease;
}

.hero__content {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.hero__img {
    display: block;
    margin: 0 auto;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-30px);
    }
}



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

.hero__title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.hero__subtitle {
    font-size: 2rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    min-height: 3rem;
}

.typing-text {
    color: var(--primary-color);
    font-weight: 600;
}

.cursor-blink {
    color: var(--primary-color);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero__description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.hero__buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.hero__socials {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-5px);
}

.hero__image {
    position: relative;
    display: flex;
    justify-content: center;
    animation: fadeInRight 1s ease;
}

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

.hero__blob {
    position: absolute;
    width: 100%;
    height: 100%;
    color: var(--primary-color);
    opacity: 0.1;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.hero__img {
    width: 300px;
    height: 300px;
    object-fit: cover;
    border-radius: 50%;
    border: 5px solid var(--primary-color);
    box-shadow: 0 0 30px rgba(99, 102, 241, 0.5);
    position: relative;
    z-index: 1;
}

.hero__scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-down {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    transition: all var(--transition-base);
}

.scroll-down:hover {
    color: var(--primary-color);
    transform: translateY(5px);
}

.scroll-down i {
    animation: scrollArrow 2s infinite;
}

@keyframes scrollArrow {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(10px); }
}


@media screen and (max-width: 968px) {
    .hero__container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero__title {
        font-size: 2.5rem;
    }

    .hero__subtitle {
        font-size: 1.5rem;
    }

    .hero__buttons {
        justify-content: center;
    }

    .hero__socials {
        justify-content: center;
    }

    .hero__image {
        order: -1;
    }
}

.about {
    background: var(--bg-secondary);
}

.about__container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: center;
}

.about__img-wrapper {
    padding: 1.5rem;
}

.about__img {
    width: 100%;
    border-radius: var(--radius-lg);
}

.about__content {
    animation: fadeIn 1s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.about__text {
    padding: 2rem;
}

.about__subtitle {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.about__description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.about__info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin: 2rem 0;
}

.about__box {
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

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

.about__box i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.about__box h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.about__box span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.download-cv {
    margin-top: 2rem;
}


@media screen and (max-width: 968px) {
    .about__container {
        grid-template-columns: 1fr;
    }

    .about__info {
        grid-template-columns: 1fr;
    }
}

.projects__filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-weight: 600;
    transition: all var(--transition-base);
}

.filter-btn:hover,
.filter-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    transform: translateY(-2px);
}

.projects__container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.project__card {
    padding: 0;
    overflow: hidden;
    transition: all var(--transition-base);
    animation: projectFadeIn 0.5s ease;
}

@keyframes projectFadeIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.project__card.hide {
    display: none;
}

.project__card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.project__image {
    position: relative;
    overflow: hidden;
    height: 250px;
}

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

.project__card:hover .project__img {
    transform: scale(1.1);
}

.project__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(99, 102, 241, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.project__card:hover .project__overlay {
    opacity: 1;
}

.project__btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: white;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.project__btn:hover {
    transform: scale(1.2) rotate(360deg);
}

.project__content {
    padding: 1.5rem;
}

.project__title {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.project__description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

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

.tag {
    padding: 0.25rem 0.75rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--primary-color);
    font-weight: 500;
}


.lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.lightbox.active {
    display: flex;
}

.lightbox__content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    animation: lightboxZoom 0.3s ease;
}

@keyframes lightboxZoom {
    from {
        transform: scale(0.5);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.lightbox__close {
    position: absolute;
    top: -40px;
    right: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: white;
    color: var(--text-primary);
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.lightbox__close:hover {
    transform: rotate(90deg);
    background: var(--primary-color);
    color: white;
}

.lightbox__img {
    max-width: 100%;
    max-height: calc(90vh - 60px);
    border-radius: var(--radius-lg);
}

.lightbox__caption {
    text-align: center;
    color: white;
    margin-top: 1rem;
    font-size: 1.1rem;
}


.skills {
    background: var(--bg-secondary);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1.5rem;
    max-width: 1000px;
    margin: 0 auto;
}

.skill-card {
    padding: 2rem 1.5rem;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.1), transparent);
    transition: left 0.5s ease;
}

.skill-card:hover::before {
    left: 100%;
}

.skill-card.animate {
    animation: fadeInUp 0.6s ease forwards;
}

.skill-card:hover {
    transform: translateY(-10px) scale(1.05);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.3);
    border-color: var(--primary-color);
}

.skill-card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: block;
    transition: all var(--transition-base);
}

.skill-card:hover i {
    transform: scale(1.2) rotateY(360deg);
    color: var(--accent-color);
}

.skill-card h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    transition: color var(--transition-base);
}

.skill-card:hover h3 {
    color: var(--primary-color);
}

body.dark-mode .skill-card {
    background: rgba(30, 41, 59, 0.7);
}

body.dark-mode .skill-card:hover {
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.5);
}


@media screen and (max-width: 768px) {
    .skills-grid {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
        gap: 1rem;
    }
    
    .skill-card {
        padding: 1.5rem 1rem;
    }
    
    .skill-card i {
        font-size: 2rem;
    }
    
    .skill-card h3 {
        font-size: 0.9rem;
    }
}

@media screen and (max-width: 480px) {
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}


.contact__container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
}

.contact__info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact__card {
    padding: 2rem;
    text-align: center;
    transition: all var(--transition-base);
}

.contact__card:hover {
    transform: translateY(-10px);
}

.contact__card i {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.contact__card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.contact__card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

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

.contact__button:hover {
    gap: 1rem;
}

.contact__form {
    padding: 2.5rem;
}

.form__group {
    margin-bottom: 1.5rem;
}

.form__label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form__input {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--bg-tertiary);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-base);
}

.form__input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form__textarea {
    resize: vertical;
    min-height: 120px;
}

.form__error {
    display: block;
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

.form__message {
    padding: 1rem;
    border-radius: var(--radius-md);
    margin-top: 1rem;
    text-align: center;
}

.form__message.success {
    background: #dcfce7;
    color: #166534;
}

body.dark-mode .form__message.success {
    background: #064e3b;
    color: #86efac;
}

.form__message.error {
    background: #fee2e2;
    color: #991b1b;
}

body.dark-mode .form__message.error {
    background: #7f1d1d;
    color: #fca5a5;
}


@media screen and (max-width: 968px) {
    .contact__container {
        grid-template-columns: 1fr;
    }
}


.footer {
    background: var(--bg-secondary);
    padding: 3rem 0 1.5rem;
}

.footer__container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer__logo {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-code);
    margin-bottom: 1rem;
    display: inline-block;
}

.footer__description {
    color: var(--text-secondary);
    line-height: 1.8;
}

.footer__title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.footer__links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer__link {
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.footer__link:hover {
    color: var(--primary-color);
    padding-left: 0.5rem;
}

.footer__socials {
    display: flex;
    gap: 1rem;
}

.footer__social {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    transition: all var(--transition-base);
}

.footer__social:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-5px);
}

.footer__bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--bg-tertiary);
}

.footer__copy {
    text-align: center;
    color: var(--text-secondary);
}

.footer__copy i {
    color: #ef4444;
    animation: heartbeat 1.5s infinite;
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}


.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}


::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}


.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.appear {
    opacity: 1;
    transform: translateY(0);
}


@media screen and (max-width: 576px) {
    .section__title {
        font-size: 2rem;
    }

    .hero__title {
        font-size: 2rem;
    }

    .hero__subtitle {
        font-size: 1.25rem;
    }

    .hero__buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .about__info {
        grid-template-columns: 1fr;
    }

    .projects__container {
        grid-template-columns: 1fr;
    }

    .skills__container {
        grid-template-columns: 1fr;
    }
}


.text-center {
    text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }


@media print {
    .header,
    .nav__toggle,
    .theme-toggle,
    .back-to-top,
    .hero__scroll,
    .cursor,
    .cursor-follower {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }

    .section {
        page-break-inside: avoid;
    }
}