/* 
   Tema: Modern Dark Tech 
   Autor: Giovanni Pigatto AI Assistant
*/

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

:root {
    --bg-dark: #0D1117;
    --bg-card: #161B22;
    --text-primary: #F0F6FC;
    --text-secondary: #8B949E;
    
    --accent-primary: #00bcd4; /* Cyan */
    --accent-secondary: #673ab7; /* Purple */
    --accent-tertiary: #FF6600; /* Orange */
    
    --gradient-main: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    
    --transition: all 0.3s ease;
    --shadow-card: 0 10px 30px rgba(0,0,0,0.5);
}

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

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- Utilities --- */
.gradient-text {
    background: var(--gradient-main);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.text-center { text-align: center; }
.w-full { width: 100%; }

.section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient-main);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 188, 212, 0.3);
    border: none;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 188, 212, 0.5);
}

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

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

.btn-text {
    color: var(--accent-primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-text:hover {
    color: var(--accent-secondary);
}

/* --- Navigation --- */
.navbar {
    background: rgba(13, 17, 23, 0.95);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    padding: 1rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.2rem;
}

.logo-img {
    height: 40px;
}

.filter-invert {
    filter: invert(1);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-primary);
    transition: var(--transition);
}

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

.nav-btn {
    background: rgba(255,255,255,0.1);
    padding: 8px 20px;
    border-radius: 20px;
}

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

.menu-toggle {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    margin: 5px auto;
    transition: var(--transition);
}

/* --- Hero Section --- */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 60px;
}

.hero-bg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 10% 20%, rgba(0, 188, 212, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(103, 58, 183, 0.15) 0%, transparent 40%);
    z-index: -1;
}

.hero-content {
    max-width: 800px;
}

.hero-title {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.hero-btns {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 4rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent-primary);
}

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

/* --- About Section --- */
.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-img-wrapper {
    position: relative;
}

.about-img-bg {
    position: absolute;
    top: 20px;
    left: -20px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--accent-secondary);
    border-radius: 20px;
    z-index: -1;
}

.about-img {
    border-radius: 20px;
    width: 100%;
    /* Gryscale effect for cool vibe, color on hover if wanted */
    filter: grayscale(20%);
    transition: var(--transition);
}

.about-img:hover {
    filter: grayscale(0%);
}

.about-headline {
    font-size: 1.5rem;
    color: var(--accent-primary);
    margin-bottom: 1.5rem;
}

.about-text p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

.about-text strong {
    color: var(--text-primary);
}

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

.service-card {
    background: var(--bg-card);
    padding: 3rem 2rem;
    border-radius: 20px;
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.05);
    text-align: center;
}

.service-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-card);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    background: var(--gradient-main);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.service-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.service-card p {
    color: var(--text-secondary);
}

/* --- Portfolio Section --- */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.portfolio-item {
    background: var(--bg-card);
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    border: 1px solid rgba(255,255,255,0.05);
    height: 300px; /* Placeholder height */
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    background-size: cover;
    background-position: center;
    /* You can add real images here later via inline style */
    background-image: linear-gradient(to bottom, transparent, #000), url('https://placehold.co/600x400/161B22/FFF?text=App+Preview'); 
    transition: var(--transition);
}

.portfolio-item:hover {
    transform: scale(1.02);
}

.portfolio-content {
    padding: 2rem;
    background: linear-gradient(to top, rgba(0,0,0,0.9), transparent);
}

.portfolio-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.portfolio-content p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.tags {
    display: flex;
    gap: 0.5rem;
}

.tags span {
    font-size: 0.75rem;
    padding: 4px 10px;
    background: rgba(255,255,255,0.1);
    border-radius: 50px;
}

/* --- Tech Stack Bar --- */
.tech-stack-bar {
    padding: 2rem 0;
    background: rgba(255,255,255,0.02);
    border-top: 1px solid rgba(255,255,255,0.05);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.tech-stack-bar .container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.tech-label {
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 1px;
}

.tech-icons {
    display: flex;
    gap: 2rem;
    font-size: 2rem;
    color: var(--text-secondary);
}

.tech-icons i:hover {
    color: var(--accent-primary);
    transform: translateY(-3px);
    transition: var(--transition);
}

/* --- Contact Section --- */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
}

.contact-info .info-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-info .info-item i {
    font-size: 1.5rem;
    color: var(--accent-primary);
    width: 50px;
    height: 50px;
    background: rgba(0, 188, 212, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.contact-info .info-item h4 {
    margin-bottom: 0.2rem;
}

.contact-info .info-item a {
    color: var(--text-secondary);
    transition: var(--transition);
}

.contact-info .info-item a:hover {
    color: var(--accent-primary);
}

.social-links-big {
    display: flex;
    gap: 1.5rem;
    margin-top: 3rem;
}

.social-links-big a {
    font-size: 1.5rem;
    width: 60px;
    height: 60px;
    background: var(--bg-card);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
    border: 1px solid rgba(255,255,255,0.05);
}

.social-links-big a:hover {
    background: var(--gradient-main);
    color: white;
    transform: translateY(-5px);
}

.contact-form {
    background: var(--bg-card);
    padding: 3rem;
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,0.05);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    background: rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: rgba(0,0,0,0.4);
}

/* --- Footer --- */
footer {
    padding: 4rem 0;
    text-align: center;
    border-top: 1px solid rgba(255,255,255,0.05);
    background: #090C10;
}

.footer-sub {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

/* --- Responsive --- */
@media (max-width: 968px) {
    .hero-title { font-size: 3rem; }
    .about-container { grid-template-columns: 1fr; text-align: center; }
    .about-img-wrapper { max-width: 400px; margin: 0 auto; }
    .contact-wrapper { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .menu-toggle { display: block; }
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--bg-card);
        width: 100%;
        padding: 2rem 0;
        transition: 0.3s;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    
    .nav-menu.active { left: 0; }
    
    .hero { padding-top: 100px; text-align: center; justify-content: center; }
    .hero-btns { justify-content: center; }
    .hero-stats { justify-content: center; }
    
    .section-title { font-size: 2rem; }
}