/* ===================================
   PORTFOLIO - LUIZ FERNANDO DEV
   Modern & Vibrant Design System
   =================================== */

/* === IMPORTS === */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* === CSS RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors */
    --primary-blue: #0066FF;
    --primary-blue-dark: #0052CC;
    --primary-blue-light: #3385FF;
    --dark-bg: #1a1a1a;
    --dark-bg-secondary: #2d2d2d;
    --dark-bg-card: #252525;
    --light-bg: #ffffff;
    --light-gray: #f5f5f5;
    --text-dark: #1a1a1a;
    --text-light: #ffffff;
    --text-gray: #666666;
    --text-medium: #999999;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
    --shadow-blue: 0 8px 32px rgba(0, 102, 255, 0.3);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.9s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--light-bg);
    overflow-x: hidden;
    width: 100%;
    max-width: 100%;
}

section {
    width: 100%;
}

/* === UTILITY CLASSES === */
.container {
    width: 100%;
    max-width: 100%;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.section {
    padding: var(--spacing-3xl) 0;
}

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    color: var(--text-dark);
}

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

/* === HERO SECTION === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2d2d2d 0%, #1a1a1a 100%);
    overflow: hidden;
    padding: var(--spacing-2xl) 0;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(45deg, transparent 48%, rgba(0, 102, 255, 0.05) 49%, rgba(0, 102, 255, 0.05) 51%, transparent 52%),
        linear-gradient(-45deg, transparent 48%, rgba(0, 102, 255, 0.05) 49%, rgba(0, 102, 255, 0.05) 51%, transparent 52%);
    background-size: 100px 100px;
    opacity: 0.3;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    animation: fadeInUp 1s ease;
}

.hero-content > *:not(.hero-image) {
    position: relative;
    z-index: 2;
}

.hero-image {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 5px solid var(--primary-blue);
    margin: 0 auto var(--spacing-lg);
    box-shadow: 0 0 40px rgba(0, 102, 255, 0.4);
    animation: float 3s ease-in-out infinite;
    transform-origin: center;
    transition: transform var(--transition-slow), border-radius var(--transition-slow), box-shadow var(--transition-slow), border-color var(--transition-slow);
    position: relative;
    z-index: 1;
}

.hero-name {
    font-size: var(--font-size-5xl);
    font-weight: 900;
    color: var(--text-light);
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.02em;
}

.hero-title {
    display: inline-block;
    background: var(--primary-blue);
    color: var(--text-light);
    padding: var(--spacing-xs) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-blue);
}

.freelance {
    background: var(--light-bg);
    padding: var(--spacing-3xl) 0;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.freelance-card {
    max-width: 100%;
    margin: var(--spacing-lg) auto 0;
    background: linear-gradient(180deg, #ffffff 0%, #f7f9ff 100%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 102, 255, 0.15);
    text-align: center;
}

.freelance-text {
    font-size: var(--font-size-lg);
    color: var(--text-gray);
    margin: 0 0 var(--spacing-lg);
}

.freelance-list {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--spacing-xl);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-sm);
}

.freelance-list li {
    background: #ffffff;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
    color: var(--text-dark);
    border: 1px solid rgba(0, 0, 0, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
}

.freelance-list i {
    color: var(--primary-blue);
    font-size: 1.5rem;
}



.hero-availability {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-xl);
    border-radius: var(--radius-lg);
    font-weight: 700;
    text-decoration: none;
    color: var(--text-light);
    background: var(--primary-blue);
    box-shadow: var(--shadow-blue);
    transition: all var(--transition-base);
}

.hero-cta:hover {
    background: var(--primary-blue-dark);
    transform: translateY(-2px);
}

.hero-cta.secondary {
    background: transparent;
    border: 2px solid rgba(255, 255, 255, 0.4);
    box-shadow: none;
}

.hero-cta.secondary:hover {
    border-color: var(--primary-blue-light);
}

.section-subtitle {
    text-align: center;
    color: var(--text-medium);
    font-size: var(--font-size-base);
    margin: -1.5rem 0 var(--spacing-xl);
}
/* === LANGUAGE TOGGLE === */
.language-toggle {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 100;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs) var(--spacing-md);
    color: var(--text-light);
    font-size: var(--font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.lang-flag {
    font-size: var(--font-size-lg);
}

.lang-text {
    font-family: var(--font-primary);
    letter-spacing: 0.5px;
}

/* === TECHNOLOGIES SECTION === */
.technologies {
    background: linear-gradient(180deg, var(--primary-blue) 0%, #0052CC 100%);
    padding: var(--spacing-3xl) 0;
}

.technologies .section-title {
    color: var(--text-light);
    margin-bottom: var(--spacing-xl);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: var(--spacing-lg);
    max-width: 100%;
    margin: 0 auto;
}

.tech-item {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    aspect-ratio: 1;
    transition: all var(--transition-base);
    cursor: pointer;
}

.tech-item:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3);
}

.tech-item i {
    font-size: 3.5rem;
    color: var(--text-light);
}

.tech-item img {
    width: 60%;
    height: 60%;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

/* === ABOUT SECTION === */
.about {
    background: var(--light-bg);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.about-image {
    width: 100%;
    max-width: 400px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.about-text h2 {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

.about-text h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-lg);
}

.about-text p {
    font-size: var(--font-size-base);
    line-height: 1.8;
    color: var(--text-gray);
    margin-bottom: var(--spacing-md);
}

/* === PROJECTS SECTION === */
.projects {
    background: var(--dark-bg);
    padding: var(--spacing-3xl) 0;
}

.projects .section-title {
    color: var(--text-light);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.project-card {
    background: var(--dark-bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

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

.project-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.project-content {
    padding: var(--spacing-lg);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.project-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-light);
    margin-bottom: var(--spacing-xs);
}

.project-tag {
    background: var(--primary-blue);
    color: var(--text-light);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.project-description {
    color: var(--text-medium);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
}

.project-link:hover {
    color: var(--primary-blue-light);
    gap: var(--spacing-sm);
}

.btn-more {
    display: block;
    width: fit-content;
    margin: 0 auto;
    background: var(--primary-blue);
    color: var(--text-light);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 700;
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-blue);
}

.btn-more:hover {
    background: var(--primary-blue-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 102, 255, 0.4);
}

/* === TESTIMONIALS SECTION === */
.testimonials {
    background: var(--light-bg);
    padding: var(--spacing-3xl) 0;
}

.testimonials-carousel {
    max-width: 100%;
    margin: 0 auto;
    position: relative;
}

.testimonial-card {
    background: var(--light-bg);
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-md);
    text-align: center;
}

.testimonial-image {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto var(--spacing-md);
    border: 4px solid var(--primary-blue);
}

.testimonial-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--spacing-xs);
}

.testimonial-text {
    font-size: var(--font-size-base);
    line-height: 1.8;
    color: var(--text-gray);
    font-style: italic;
    margin-bottom: var(--spacing-lg);
}

.carousel-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.carousel-arrow {
    background: var(--light-gray);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    font-size: var(--font-size-lg);
    color: var(--text-dark);
}

.carousel-arrow:hover {
    background: var(--primary-blue);
    color: var(--text-light);
    transform: scale(1.1);
}

.carousel-dots {
    display: flex;
    gap: var(--spacing-xs);
}

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--light-gray);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.carousel-dot.active {
    background: var(--primary-blue);
    width: 30px;
    border-radius: 5px;
}

/* === SERVICES SECTION === */
.services {
    background: var(--dark-bg);
    padding: var(--spacing-3xl) 0;
}

.services .section-title {
    color: var(--text-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.service-card {
    background: var(--dark-bg-card);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-blue);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.service-icon i {
    font-size: 2.5rem;
    color: var(--text-light);
}

.service-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
}

.service-description {
    font-size: var(--font-size-sm);
    line-height: 1.6;
    color: var(--text-medium);
    margin-bottom: var(--spacing-md);
}

.service-link {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-size-sm);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-fast);
}

.service-link:hover {
    color: var(--primary-blue-light);
    gap: var(--spacing-sm);
}

/* === CTA SECTION === */
.cta {
    background: linear-gradient(135deg, var(--primary-blue) 0%, #0052CC 100%);
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.cta-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.cta-subtitle {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

.social-link {
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    font-size: 2rem;
    text-decoration: none;
    transition: all var(--transition-base);
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-8px) scale(1.1);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3);
}

/* === FOOTER === */
.footer {
    background: var(--dark-bg);
    padding: var(--spacing-lg) 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-text {
    color: var(--text-medium);
    font-size: var(--font-size-sm);
}

.footer-link {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--primary-blue-light);
}

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

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

.fade-in {
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
}

@import url('style-responsive.css');