/* =================================================================
   Professional Portfolio - Control & Automation Engineer
   Optimized for European Engineering Recruiters
   ================================================================= */

/* === ROOT VARIABLES === */
:root {
    /* Color Palette - Professional Engineering Theme */
    --primary-color: #2563eb;        /* Blue - Trust, Engineering */
    --primary-dark: #1e40af;
    --secondary-color: #10b981;      /* Green - Growth, Success */
    --accent-color: #f59e0b;         /* Amber - Energy, Innovation */
    --dark-bg: #0f172a;              /* Slate 900 */
    --dark-bg-light: #1e293b;        /* Slate 800 */
    --text-primary: #f8fafc;         /* Slate 50 */
    --text-secondary: #cbd5e1;       /* Slate 300 */
    --text-muted: #94a3b8;           /* Slate 400 */

    /* Italian Flag Colors (Subtle accents) */
    --italy-green: #008C45;
    --italy-white: #F4F5F0;
    --italy-red: #CD212A;

    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;

    /* Spacing */
    --container-width: 1200px;
    --section-padding: 100px 0;

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

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

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

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

/* === NAVIGATION === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-subtitle {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: -2px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 0;
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s;
}

.nav-link:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: var(--transition);
}

/* === HERO SECTION === */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    opacity: 0.9;
}

.hero-background::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(16, 185, 129, 0.15) 0%, transparent 50%);
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.eu-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: linear-gradient(135deg, var(--italy-green), var(--italy-red));
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    margin-bottom: 2rem;
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.eu-badge i {
    font-size: 1.25rem;
}

.badge-detail {
    font-size: 0.9rem;
    opacity: 0.9;
}

.greeting {
    display: block;
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.name {
    display: block;
    font-size: 3.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--text-primary), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.75rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.specialty {
    color: var(--secondary-color);
    font-size: 1.25rem;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    line-height: 1.8;
}

.hero-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2.5rem 0;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    text-align: left;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.highlight-item i {
    font-size: 2rem;
    color: var(--primary-color);
    min-width: 40px;
}

.highlight-item strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.highlight-item span {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin: 2.5rem 0;
    flex-wrap: wrap;
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    font-family: var(--font-mono);
}

.stat-label {
    display: block;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.stat-label small {
    display: block;
    font-size: 0.8rem;
    opacity: 0.7;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin: 2.5rem 0;
    flex-wrap: wrap;
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
    background: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background: #059669;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(16, 185, 129, 0.3);
}

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

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* === SOCIAL LINKS === */
.hero-social {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-top: 2rem;
}

.hero-social a {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    font-size: 1.25rem;
    transition: var(--transition);
}

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

/* === SCROLL INDICATOR === */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
}

.mouse {
    width: 24px;
    height: 40px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
    margin: 0 auto 0.5rem;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--text-muted);
    border-radius: 2px;
    animation: scroll 1.5s infinite;
}

@keyframes scroll {
    0%, 100% { opacity: 0; transform: translateY(0); }
    50% { opacity: 1; transform: translateY(8px); }
}

.scroll-indicator span {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* === SECTIONS === */
section {
    padding: var(--section-padding);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-primary), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 1.125rem;
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* === ABOUT SECTION === */
.about {
    background: linear-gradient(180deg, var(--dark-bg) 0%, var(--dark-bg-light) 100%);
}

.about-text {
    max-width: 900px;
    margin: 0 auto;
}

.lead {
    font-size: 1.25rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.about-specializations,
.about-value-proposition {
    margin: 3rem 0;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
}

.about-specializations h3,
.about-value-proposition h3 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.specialization-list {
    list-style: none;
}

.specialization-list li {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.25rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.specialization-list li:last-child {
    border-bottom: none;
}

.specialization-list i {
    color: var(--secondary-color);
    font-size: 1.25rem;
    margin-top: 0.25rem;
}

.specialization-list strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.specialization-list span {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.value-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.value-item {
    text-align: center;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
}

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

.value-item strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.value-item p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* === EXPERTISE SECTION === */
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.expertise-category {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.expertise-category:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.2);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.category-header i {
    font-size: 2rem;
    color: var(--primary-color);
}

.category-header h3 {
    color: var(--text-primary);
    font-size: 1.25rem;
}

.skill-list {
    list-style: none;
}

.skill-list li {
    padding: 0.75rem 0;
    color: var(--text-secondary);
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.skill-list li:last-child {
    border-bottom: none;
}

.skill-list i {
    color: var(--secondary-color);
    margin-top: 0.25rem;
}

/* === PROJECTS SECTION === */
.projects {
    background: var(--dark-bg-light);
}

.projects-grid {
    display: grid;
    gap: 3rem;
    margin-top: 3rem;
}

.project-card {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.project-card.featured {
    border: 2px solid var(--primary-color);
}

.project-tag {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    z-index: 10;
}

.featured-tag {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.internship-tag {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
}

.project-image {
    position: relative;
    height: 300px;
    overflow: hidden;
}

.image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e293b, #334155);
    gap: 1rem;
}

.image-placeholder.thermal {
    background: linear-gradient(135deg, #dc2626, #f59e0b);
}

.image-placeholder.control {
    background: linear-gradient(135deg, #2563eb, #7c3aed);
}

.image-placeholder.iot {
    background: linear-gradient(135deg, #10b981, #06b6d4);
}

.image-placeholder.edge {
    background: linear-gradient(135deg, #8b5cf6, #ec4899);
}

.image-placeholder.devops {
    background: linear-gradient(135deg, #f59e0b, #ef4444);
}

.image-placeholder i {
    font-size: 4rem;
    color: white;
}

.image-placeholder span {
    font-size: 1.25rem;
    font-weight: 600;
    color: white;
}

.project-content {
    padding: 2rem;
}

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

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

.project-metrics {
    display: flex;
    gap: 2rem;
    margin: 1.5rem 0;
    flex-wrap: wrap;
}

.metric {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.metric i {
    color: var(--primary-color);
}

.metric span strong {
    color: var(--secondary-color);
    font-weight: 700;
}

.project-highlights,
.project-impact {
    margin: 1.5rem 0;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
}

.project-highlights h4,
.project-impact h4 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.project-highlights ul {
    list-style: none;
}

.project-highlights li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
}

.project-highlights strong {
    color: var(--primary-color);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 1.5rem 0;
}

.tag {
    background: rgba(37, 99, 235, 0.2);
    color: var(--primary-color);
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
}

.project-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary-color);
    text-decoration: none;
    border-radius: 8px;
    border: 1px solid rgba(37, 99, 235, 0.3);
    transition: var(--transition);
}

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

/* === EDUCATION SECTION === */
.education-grid {
    display: grid;
    gap: 2rem;
    margin-top: 3rem;
}

.education-card {
    display: flex;
    gap: 2rem;
    background: rgba(255, 255, 255, 0.03);
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
}

.edu-icon {
    flex-shrink: 0;
}

.edu-icon i {
    font-size: 3rem;
    color: var(--primary-color);
}

.edu-content h3 {
    color: var(--text-primary);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.edu-content h4 {
    color: var(--secondary-color);
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
}

.edu-institution {
    color: var(--text-secondary);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.edu-location {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.edu-highlights {
    margin-top: 1rem;
}

.edu-highlights p {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.certifications,
.languages-section {
    margin-top: 3rem;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
}

.certifications h3,
.languages-section h3 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.cert-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
}

.cert-item i {
    color: var(--accent-color);
    font-size: 1.5rem;
}

.languages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.language-item strong {
    display: block;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.language-item span {
    display: block;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.language-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

.language-bar div {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
}

/* === CONTACT SECTION === */
.contact {
    background: var(--dark-bg-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 3rem;
}

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

.contact-item {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.contact-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 12px;
}

.contact-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.contact-item h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.contact-item a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

.contact-item a:hover {
    color: var(--secondary-color);
}

.contact-cta {
    background: rgba(37, 99, 235, 0.05);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(37, 99, 235, 0.2);
}

.contact-cta h3 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.reasons-list {
    list-style: none;
    margin-bottom: 2rem;
}

.reasons-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.reasons-list i {
    color: var(--secondary-color);
    margin-top: 0.25rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* === FOOTER === */
.footer {
    background: var(--dark-bg);
    padding: 3rem 0 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-main h4 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.footer-tagline {
    color: var(--text-muted);
    font-style: italic;
}

.footer-links h5 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-social h5 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    border-radius: 50%;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary-color);
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
}

.footer-note {
    margin-top: 1rem;
    font-size: 0.9rem;
}

.footer-note i {
    color: var(--primary-color);
    margin: 0 0.5rem;
}

/* === MISSING PROJECT TAG VARIANTS === */
.production-tag {
    background: linear-gradient(135deg, #10b981, #059669);
}

/* === MISSING IMAGE PLACEHOLDER VARIANTS === */
.image-placeholder.industrial {
    background: linear-gradient(135deg, #1e293b, #f59e0b);
}

.image-placeholder.kvm {
    background: linear-gradient(135deg, #7c3aed, #2563eb);
}

/* === SERVICES SECTION === */
.services {
    background: var(--dark-bg);
}

.services-model-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.service-model-item {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: var(--transition);
}

.service-model-item:hover {
    border-color: var(--primary-color);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(37, 99, 235, 0.15);
}

.service-model-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.2), rgba(16, 185, 129, 0.2));
    border-radius: 14px;
    margin-bottom: 1.25rem;
}

.service-model-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.service-model-item h3 {
    color: var(--text-primary);
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
}

.service-model-item p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 0.95rem;
}

.service-websites {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.website-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.85rem;
    background: rgba(16, 185, 129, 0.1);
    color: var(--secondary-color);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 20px;
    font-size: 0.82rem;
    text-decoration: none;
    transition: var(--transition);
    font-weight: 500;
}

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

.services-offerings-title {
    text-align: center;
    color: var(--text-primary);
    font-size: 1.6rem;
    font-weight: 700;
    margin: 3rem 0 2rem;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.service-card {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 12px;
    padding: 1.75rem;
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: var(--transition);
    text-align: left;
}

.service-card:hover {
    border-color: var(--secondary-color);
    transform: translateY(-4px);
    box-shadow: 0 10px 25px rgba(16, 185, 129, 0.12);
}

.service-card > i {
    font-size: 1.75rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
    display: block;
}

.service-card h4 {
    color: var(--text-primary);
    font-size: 1.05rem;
    margin-bottom: 0.6rem;
}

.service-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.65;
}

/* === FOOTER EXTRAS === */
.footer-cnpj {
    margin-top: 0.4rem;
    font-size: 0.82rem;
    color: var(--text-muted);
}

.footer-websites {
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.footer-websites a {
    color: var(--text-muted);
    font-size: 0.82rem;
    text-decoration: none;
    transition: var(--transition);
}

.footer-websites a:hover {
    color: var(--secondary-color);
}

/* === BACK TO TOP BUTTON === */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.show {
    display: flex;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-5px);
}

/* === RESPONSIVE === */
@media (max-width: 968px) {
    .services-model-grid,
    .services-grid {
        grid-template-columns: 1fr;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--dark-bg);
        width: 100%;
        text-align: center;
        transition: var(--transition);
        padding: 2rem 0;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .name {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .hero-stats {
        gap: 1.5rem;
    }

    .expertise-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 0 1rem;
    }

    .name {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.125rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .hero-cta {
        flex-direction: column;
    }

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

    .education-card {
        flex-direction: column;
    }
}