:root {
    --bg-color: #050505;
    --text-color: #e5e5e5;
    --text-muted: #888888;
    --border-color: rgba(255, 255, 255, 0.1);
    --glass-bg: rgba(20, 20, 20, 0.6);
    --glass-border: rgba(255, 255, 255, 0.05);
    
    --accent-1: #00ffb5; /* mint green / cyan */
    --accent-2: #02c39a; /* teal green */
    --border-radius: 24px;
}

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

html, body {
    max-width: 100vw;
    overflow-x: hidden;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    position: relative;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

/* Background Glows */
.glow {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    filter: blur(120px);
    z-index: -1;
    opacity: 0.15;
    animation: drift 20s infinite alternate;
}

.glow-1 {
    top: -100px;
    left: -200px;
    background: var(--accent-1);
}

.glow-2 {
    top: 50%;
    right: -200px;
    background: var(--accent-2);
}

@keyframes drift {
    0% { transform: translateY(0) translateX(0); }
    100% { transform: translateY(50px) translateX(100px); }
}

/* Navbar */
.navbar {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 800px;
    padding: 15px 30px;
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    z-index: 100;
    transition: all 0.3s ease;
}

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

.logo-img {
    height: 35px;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

.menu-toggle {
    display: none;
    font-size: 2rem;
    color: var(--text-color);
    cursor: pointer;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 20px;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 400;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: #fff;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.4);
}

/* Main Spacing */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 100px 0;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

section.visible {
    opacity: 1;
    transform: translateY(0);
}

h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 40px;
    letter-spacing: -1.5px;
}

/* Hero */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 80px; /* Offset for navbar */
    position: relative;
    overflow: hidden;
    background-image: url('assets/cyan_network_bg.png');
    background-size: cover;
    background-position: center;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle 350px at var(--mouse-x, 50vw) var(--mouse-y, 50vh), rgba(255, 255, 255, 0.15) 0%, rgba(0, 5, 15, 0.95) 100%);
    z-index: 0;
    pointer-events: none;
    transition: background 0.1s;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 250px;
    background: linear-gradient(to bottom, transparent, var(--bg-color));
    z-index: 1;
    pointer-events: none;
}

#techCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    max-width: 100vw;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.8;
}

.hero-content {
    position: relative;
    z-index: 2;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}

.hero h1 {
    font-size: clamp(3rem, 10vw, 6rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -3px;
    margin-bottom: 20px;
    background: linear-gradient(to right, #ffffff, #888888);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero h2 {
    font-size: clamp(1rem, 4vw, 1.5rem);
    font-weight: 400;
    color: var(--text-muted);
    max-width: 650px;
    margin: 0 auto 40px auto;
    letter-spacing: normal;
}

.cta-button {
    display: inline-block;
    padding: 16px 32px;
    background: #fff;
    color: #000;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(255, 255, 255, 0.15);
}

/* Projects */
.projects-list {
    display: flex;
    flex-direction: column;
    gap: 100px;
}

.project-row {
    display: flex;
    flex-direction: row;
    align-items: center;
    background: transparent;
    text-decoration: none;
    color: inherit;
    gap: 40px;
}

.project-row.reversed {
    flex-direction: row-reverse;
}

.project-row-image {
    flex: 1;
    border-radius: var(--border-radius);
    overflow: hidden;
    background: var(--glass-bg);
}

.project-row-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
    display: block;
}

.project-row:hover .project-row-image img {
    transform: scale(1.03);
}

.project-row-text {
    flex: 1;
    padding: 20px;
}

.project-tag {
    font-size: 0.8rem;
    font-weight: 800;
    color: var(--accent-1);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 15px;
    display: inline-block;
}

.project-row-text h3 {
    font-size: 2.2rem;
    line-height: 1.2;
    font-weight: 600;
    margin-bottom: 20px;
}

.project-row-text p {
    color: var(--text-muted);
    margin-bottom: 30px;
    font-size: 1.1rem;
    line-height: 1.6;
}

.view-project {
    display: inline-block;
    font-weight: 600;
    color: var(--text-color);
    font-size: 1rem;
    border-bottom: 1px solid var(--text-color);
    padding-bottom: 2px;
    transition: color 0.2s, border-color 0.2s;
}

.project-row:hover .view-project {
    color: var(--accent-1);
    border-color: var(--accent-1);
}

/* Tools */
.tools {
    padding-bottom: 20px;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.tool-card {
    display: flex;
    align-items: center;
    gap: 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 30px;
    border-radius: var(--border-radius);
    transition: background 0.3s, transform 0.3s;
}

.tool-card:hover {
    background: rgba(255,255,255,0.05);
    transform: translateY(-5px);
}

.tool-card i {
    font-size: 2.5rem;
    color: var(--accent-1);
}

.tool-card svg {
    width: 2.5rem;
    height: 2.5rem;
    flex-shrink: 0;
    color: var(--accent-1);
}

.tool-text {
    text-align: left;
}

.tool-text h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 5px;
}

.tool-text p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Skills Section */
.skills {
    padding-top: 20px;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.skill-category {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 30px;
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
}

.skill-category h3 {
    font-size: 1.3rem;
    color: #fff;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 10px;
}

.skill-category ul {
    list-style: none;
    padding: 0;
}

.skill-category li {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.skill-category li i {
    color: var(--accent-2);
}

/* About Section */
#sobre {
    padding-top: 130px;
}

.about-content {
    display: flex;
    flex-direction: row;
    gap: 50px;
    align-items: flex-start;
}

.about-text {
    flex: 1.5;
}

.about-text p {
    font-size: 1.15rem;
    line-height: 1.7;
    color: var(--text-muted);
    margin-bottom: 25px;
}

.about-action {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 30px;
    margin-top: 30px;
}

.about-action .cta-button {
    font-size: 1rem;
    padding: 12px 28px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.about-image {
    flex: 1;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.about-image img {
    width: 100%;
    height: 450px;
    object-fit: cover;
    object-position: center;
    filter: grayscale(100%);
    transition: filter 0.5s ease;
    border-radius: var(--border-radius);
}

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

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.contact-card {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 15px;
    padding: 20px 25px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    text-decoration: none;
    color: inherit;
    transition: background 0.3s;
}

.contact-card:hover {
    background: rgba(255,255,255,0.05);
}

.contact-card i {
    font-size: 1.8rem;
    color: var(--accent-1);
}

.contact-card-text {
    display: flex;
    flex-direction: column;
}

.contact-card span {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 2px;
}

.contact-card strong {
    font-size: 1.05rem;
    font-weight: 600;
    word-break: break-all;
}

.social-links {
    display: flex;
    gap: 15px;
    padding-left: 5px;
}

.social-links a {
    color: var(--text-color);
    font-size: 2rem;
    transition: color 0.3s, transform 0.3s;
}

.social-links a:hover {
    color: var(--accent-1);
    transform: translateY(-5px);
}

/* Footer */
footer {
    text-align: center;
    padding: 40px 0;
    color: var(--text-muted);
    font-size: 0.9rem;
    border-top: 1px solid var(--glass-border);
    margin-top: 50px;
}

/* Responsive */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    .nav-links {
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: rgba(8, 8, 8, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-end;
        padding: 20px 40px;
        gap: 20px;
        border-radius: 0 0 24px 24px;
        border-bottom: 1px solid var(--glass-border);
        box-shadow: 0 10px 40px rgba(0,0,0,0.8);
        display: none;
    }
    
    .case-study-images iframe {
        display: none !important;
    }
    
    .nav-links.active {
        display: flex;
    }
    
    section {
        padding: 60px 0;
    }
    
    h2 {
        font-size: 1.8rem;
        margin-bottom: 25px;
    }
    
    .hero {
        padding-top: 60px;
        height: auto;
        min-height: 65vh;
        padding-bottom: 20px;
    }
    
    .hero h1 {
        font-size: 2.2rem;
        letter-spacing: -1px;
    }
    
    .hero h2 {
        font-size: 1.05rem;
        padding: 0 10px;
        color: #ffffff;
        text-shadow: 0 2px 4px rgba(0,0,0,0.8);
    }
    
    .glow {
        display: none;
    }
    
    .projects-list {
        gap: 50px;
    }
    
    .project-row, .project-row.reversed {
        flex-direction: column;
        gap: 20px;
    }
    
    .project-row-text {
        padding: 10px 0;
    }
    
    .project-row-text h3 {
        font-size: 1.5rem;
        margin-bottom: 10px;
    }
    
    #sobre {
        padding-top: 60px;
    }

    .about-content {
        flex-direction: column;
        gap: 30px;
    }
    
    .about-image {
        display: none;
    }
    
    .about-text p {
        font-size: 1.1rem;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .contact-card {
        padding: 15px 20px;
    }
    
    .contact-card i {
        font-size: 1.5rem;
    }
    
    .contact-card strong {
        font-size: 0.95rem;
    }
}