/* ============================================
   FLÁVIO GOMES - Portfolio
   Visual: Dark/Neon (verde + azul)
   ============================================ */

:root {
    --primary: #00ff88;
    --secondary: #0080ff;
    --dark-bg: #0a0a0a;
    --card-bg: #111111;
    --card-bg2: #1a1a1a;
    --text: #ffffff;
    --text-gray: #a0a0a0;
    --gradient: linear-gradient(135deg, #00ff88 0%, #0080ff 100%);
    --gradient-text: linear-gradient(135deg, #00ff88 0%, #00d4ff 100%);
    --glow: 0 0 20px rgba(0,255,136,0.15);
    --radius: 15px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--dark-bg);
    color: var(--text);
    overflow-x: hidden;
    scroll-behavior: smooth;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #111; }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 4px; }

/* ===== BACKGROUND ANIMADO ===== */
.animated-bg {
    position: fixed; top:0; left:0; width:100%; height:100%; z-index:-1; opacity:0.4;
    pointer-events: none;
}
.animated-bg::before {
    content:""; position:absolute; top:-50%; left:-50%; width:200%; height:200%;
    background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,255,136,0.03) 2px, rgba(0,255,136,0.03) 4px);
    animation: scan 8s linear infinite;
}
@keyframes scan { 0%{transform:translate(0,0)} 100%{transform:translate(50px,50px)} }

/* ===== HEADER / NAV ===== */
header {
    position:fixed; top:0; width:100%; padding:15px 20px;
    background:rgba(10,10,10,0.92); backdrop-filter:blur(12px);
    z-index:1000; transition: var(--transition);
    border-bottom: 1px solid rgba(0,255,136,0.05);
}
header.scrolled { padding:10px 20px; box-shadow: 0 4px 20px rgba(0,255,136,0.08); }

nav { display:flex; justify-content:space-between; align-items:center; max-width:1400px; margin:0 auto; }

.logo {
    font-family:'Orbitron',monospace; font-size:1.2rem; font-weight:900;
    background:var(--gradient-text); -webkit-background-clip:text; -webkit-text-fill-color:transparent;
    background-clip:text; display:flex; align-items:center; gap:8px; flex-shrink:0;
}
.logo i { font-size:1.5rem; color:var(--primary); -webkit-text-fill-color:var(--primary); }

.nav-links { display:flex; list-style:none; gap:25px; }
.nav-links a {
    color:var(--text); font-weight:500; font-size:0.9rem; transition:var(--transition);
    position:relative; white-space:nowrap; padding:4px 0;
}
.nav-links a::after {
    content:''; position:absolute; bottom:-2px; left:0; width:0; height:2px;
    background:var(--primary); transition:width 0.3s ease;
}
.nav-links a:hover::after, .nav-links a.active::after { width:100%; }
.nav-links a.active { color:var(--primary); }

/* Hamburger */
.menu-toggle { display:none; flex-direction:column; cursor:pointer; padding:5px; z-index:1001; }
.menu-toggle span { width:25px; height:3px; background:var(--primary); margin:3px 0; transition:0.3s; border-radius:2px; }
.menu-toggle.active span:nth-child(1) { transform:rotate(45deg) translate(5px,5px); }
.menu-toggle.active span:nth-child(2) { opacity:0; }
.menu-toggle.active span:nth-child(3) { transform:rotate(-45deg) translate(7px,-6px); }

/* ===== UTILITIES ===== */
.container { max-width:1400px; margin:0 auto; padding:0 20px; }
.section { padding:80px 20px; max-width:1400px; margin:0 auto; }
.section-title {
    font-family:'Orbitron',monospace; font-size:clamp(1.5rem,5vw,2.5rem); font-weight:700;
    text-align:center; margin-bottom:50px;
    background:var(--gradient-text); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
}
.highlight { color:var(--primary); font-weight:600; }
.text-gray { color:var(--text-gray); }
.text-center { text-align:center; }
.mb-1 { margin-bottom:10px; }
.mb-2 { margin-bottom:20px; }
.mb-3 { margin-bottom:30px; }
.mt-3 { margin-top:30px; }

/* ===== BUTTONS ===== */
.btn {
    padding:12px 30px; border:none; border-radius:50px; font-size:1rem; font-weight:600;
    display:inline-flex; align-items:center; gap:8px; transition:var(--transition);
    position:relative; overflow:hidden; cursor:pointer; white-space:nowrap;
}
.btn::before {
    content:''; position:absolute; top:50%; left:50%; width:0; height:0;
    background:rgba(255,255,255,0.15); border-radius:50%;
    transform:translate(-50%,-50%); transition:width 0.5s, height 0.5s;
}
.btn:hover::before { width:300px; height:300px; }
.btn:hover { transform:translateY(-3px); box-shadow:0 10px 30px rgba(0,255,136,0.25); }
.btn-primary { background:var(--gradient); color:var(--dark-bg); }
.btn-secondary { background:transparent; color:var(--primary); border:2px solid var(--primary); }
.btn-sm { padding:8px 20px; font-size:0.85rem; }

/* ===== CARDS ===== */
.card {
    background:var(--card-bg2); border-radius:var(--radius); border:1px solid rgba(0,255,136,0.08);
    transition:var(--transition); position:relative; overflow:hidden;
}
.card::before {
    content:''; position:absolute; top:0; left:0; width:100%; height:3px;
    background:var(--gradient); transform:scaleX(0); transform-origin:left;
    transition:transform 0.4s ease;
}
.card:hover::before { transform:scaleX(1); }
.card:hover { transform:translateY(-5px); border-color:rgba(0,255,136,0.2); box-shadow:var(--glow); }

/* ===== TAGS ===== */
.tag {
    background:rgba(0,255,136,0.08); color:var(--primary); padding:4px 12px;
    border-radius:20px; font-size:0.75rem; border:1px solid rgba(0,255,136,0.2);
    display:inline-block;
}

/* ===== STATS ===== */
.stats-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:15px; }
.stat-card {
    background:linear-gradient(135deg,rgba(0,255,136,0.08) 0%,rgba(0,128,255,0.08) 100%);
    border:1px solid rgba(0,255,136,0.15); border-radius:var(--radius);
    padding:25px 15px; text-align:center; transition:var(--transition);
}
.stat-card:hover { transform:translateY(-5px); border-color:var(--primary); }
.stat-number {
    font-size:clamp(1.8rem,5vw,2.5rem); font-weight:900; font-family:'Orbitron',monospace;
    background:var(--gradient-text); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
}
.stat-label { color:var(--text-gray); font-size:0.85rem; margin-top:5px; }

/* ===== HERO ===== */
.hero {
    min-height:100vh; display:flex; align-items:center; justify-content:center;
    padding:100px 20px 60px; position:relative;
}
.hero-content { text-align:center; max-width:1200px; margin:0 auto; width:100%; }
.glitch {
    font-family:'Orbitron',monospace; font-size:clamp(1.8rem,7vw,5rem); font-weight:900;
    text-transform:uppercase; color:var(--text); letter-spacing:2px;
    animation:glitch 2.5s infinite; line-height:1.2;
}
@keyframes glitch {
    0%,100%{text-shadow:0 0 5px rgba(0,255,136,0.5)}
    25%{text-shadow:-2px 0 5px rgba(0,128,255,0.5)}
    50%{text-shadow:2px 0 5px rgba(0,255,136,0.5)}
    75%{text-shadow:0 0 10px rgba(0,128,255,0.5)}
}

.subtitle { font-size:clamp(1rem,3vw,1.5rem); margin-top:20px; color:var(--text-gray); font-weight:300; }
.typed-text { color:var(--primary); font-weight:600; }
.cta-buttons { margin-top:30px; display:flex; gap:15px; justify-content:center; flex-wrap:wrap; }

/* ===== CTA SECTION ===== */
.cta-section {
    background:linear-gradient(135deg,rgba(0,255,136,0.08) 0%,rgba(0,128,255,0.08) 100%);
    border-radius:20px; padding:50px 30px; text-align:center;
    border:1px solid rgba(0,255,136,0.15); position:relative; overflow:hidden;
    margin:60px auto; max-width:1400px;
}
.cta-section::before {
    content:''; position:absolute; top:-50%; left:-50%; width:200%; height:200%;
    background:radial-gradient(circle,rgba(0,255,136,0.08) 0%,transparent 50%);
    animation:pulse 4s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{transform:scale(0.8);opacity:0} 50%{transform:scale(1.2);opacity:1} }
.cta-title {
    font-size:clamp(1.5rem,5vw,2.5rem); margin-bottom:15px; font-family:'Orbitron',monospace;
    background:var(--gradient-text); -webkit-background-clip:text; -webkit-text-fill-color:transparent;
    background-clip:text; position:relative; z-index:1;
}
.cta-text { font-size:1rem; color:var(--text-gray); margin-bottom:25px; position:relative; z-index:1; }

/* ===== FOOTER ===== */
footer {
    background:var(--card-bg); padding:30px 20px; text-align:center;
    border-top:1px solid rgba(0,255,136,0.08);
}
.social-links { display:flex; justify-content:center; gap:25px; margin-bottom:20px; }
.social-links a { color:var(--text-gray); font-size:1.4rem; transition:var(--transition); display:inline-block; }
.social-links a:hover { color:var(--primary); transform:translateY(-3px); }
.footer-text { color:var(--text-gray); font-size:0.85rem; }
.footer-text .highlight { font-family:'Orbitron',monospace; font-weight:700; }

/* ===== GRIDS ===== */
.grid-2 { display:grid; grid-template-columns:1fr; gap:25px; }
.grid-3 { display:grid; grid-template-columns:1fr; gap:25px; }

/* ===== PROJECT CARDS ===== */
.project-badge {
    position:absolute; top:15px; right:15px; background:var(--gradient); color:var(--dark-bg);
    padding:5px 12px; border-radius:20px; font-size:0.7rem; font-weight:700; text-transform:uppercase; z-index:2;
}
.project-header {
    padding:25px; background:linear-gradient(135deg,rgba(0,255,136,0.06) 0%,rgba(0,128,255,0.06) 100%);
    border-bottom:1px solid rgba(0,255,136,0.08);
}
.project-icon { font-size:2rem; color:var(--primary); margin-bottom:10px; }
.project-title { font-size:1.3rem; margin-bottom:5px; }
.project-subtitle { color:var(--text-gray); font-size:0.85rem; }
.project-body { padding:25px; }
.project-desc { color:var(--text-gray); line-height:1.7; margin-bottom:15px; font-size:0.95rem; }
.project-tags { display:flex; flex-wrap:wrap; gap:8px; margin-bottom:15px; }
.project-features { list-style:none; }
.project-features li { padding:4px 0; color:var(--text-gray); font-size:0.85rem; display:flex; align-items:center; gap:8px; }
.project-features li i { color:var(--primary); font-size:0.7rem; }
.project-link {
    display:inline-flex; align-items:center; gap:8px; margin-top:15px;
    color:var(--primary); font-weight:600; font-size:0.9rem; transition:var(--transition);
}
.project-link:hover { gap:12px; }

/* ===== SKILL CARDS ===== */
.skill-icon { font-size:2.5rem; color:var(--primary); margin-bottom:15px; }
.skill-title { font-size:1.2rem; margin-bottom:15px; }
.skill-list { list-style:none; }
.skill-list li { padding:4px 0; color:var(--text-gray); display:flex; align-items:center; gap:8px; font-size:0.9rem; }
.skill-list li::before { content:'▸'; color:var(--primary); font-weight:bold; }

/* ===== ABOUT ===== */
.about-grid { display:grid; grid-template-columns:1fr; gap:30px; align-items:center; }
.profile-card {
    background:var(--card-bg2); border-radius:20px; padding:30px 20px; text-align:center;
    border:1px solid rgba(0,255,136,0.08); transition:var(--transition);
}
.profile-card:hover { border-color:rgba(0,255,136,0.3); }
.profile-img {
    width:150px; height:150px; border-radius:50%; background:var(--gradient);
    display:flex; align-items:center; justify-content:center; margin:0 auto 15px;
    font-size:4rem; color:var(--dark-bg);
}
.about-text { font-size:1rem; line-height:1.8; color:var(--text-gray); }
.about-text h3 { color:var(--primary); margin-bottom:15px; font-size:1.3rem; }
.about-text p { margin-bottom:15px; }

/* ===== DIFFERENTIAL CARDS ===== */
.diff-card {
    background:linear-gradient(135deg,rgba(0,255,136,0.04) 0%,rgba(0,128,255,0.04) 100%);
    border:1px solid rgba(0,255,136,0.12); border-radius:var(--radius);
    padding:30px 20px; text-align:center; transition:var(--transition);
}
.diff-card:hover { transform:translateY(-5px); border-color:var(--primary); }
.diff-icon { font-size:2.5rem; color:var(--primary); margin-bottom:15px; }
.diff-title { font-size:1.1rem; margin-bottom:10px; }
.diff-text { color:var(--text-gray); line-height:1.6; font-size:0.9rem; }

/* ===== PAGE HEADER (sub-pages) ===== */
.page-header {
    padding:120px 20px 50px; text-align:center;
    background:linear-gradient(180deg, rgba(0,255,136,0.03) 0%, transparent 100%);
}
.page-header h1 {
    font-family:'Orbitron',monospace; font-size:clamp(1.8rem,5vw,3rem); font-weight:900;
    background:var(--gradient-text); -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
}
.page-header p { color:var(--text-gray); margin-top:10px; font-size:1.1rem; }
.breadcrumb { display:flex; justify-content:center; gap:8px; margin-top:15px; font-size:0.85rem; }
.breadcrumb a { color:var(--primary); }
.breadcrumb span { color:var(--text-gray); }

/* ===== CONTACT FORM ===== */
.contact-grid { display:grid; grid-template-columns:1fr; gap:30px; }
.contact-info-card { padding:30px; }
.contact-item { display:flex; align-items:center; gap:15px; margin-bottom:20px; }
.contact-item i { font-size:1.5rem; color:var(--primary); width:40px; text-align:center; }
.contact-item span { color:var(--text-gray); font-size:0.95rem; }
.contact-item strong { display:block; color:var(--text); margin-bottom:3px; }

/* ===== TIMELINE ===== */
.timeline { position:relative; padding-left:30px; }
.timeline::before {
    content:''; position:absolute; left:8px; top:0; bottom:0; width:2px;
    background:linear-gradient(180deg, var(--primary), var(--secondary));
}
.timeline-item { position:relative; margin-bottom:30px; }
.timeline-item::before {
    content:''; position:absolute; left:-26px; top:5px; width:12px; height:12px;
    border-radius:50%; background:var(--primary); border:2px solid var(--dark-bg);
}
.timeline-year { color:var(--primary); font-family:'Orbitron',monospace; font-size:0.85rem; font-weight:700; }
.timeline-title { font-size:1.1rem; margin:5px 0; }
.timeline-desc { color:var(--text-gray); font-size:0.9rem; line-height:1.6; }

/* ===== RESPONSIVE ===== */
@media(min-width:600px) {
    .stats-grid { grid-template-columns:repeat(4,1fr); }
    .grid-2 { grid-template-columns:repeat(2,1fr); }
    .grid-3 { grid-template-columns:repeat(2,1fr); }
    .about-grid { grid-template-columns:280px 1fr; }
    .contact-grid { grid-template-columns:1fr 1fr; }
}
@media(min-width:900px) {
    header { padding:18px 40px; }
    .section { padding:100px 40px; }
    .grid-3 { grid-template-columns:repeat(3,1fr); }
}
@media(min-width:1200px) {
    .grid-2 { grid-template-columns:repeat(3,1fr); }
}
@media(max-width:768px) {
    .nav-links {
        position:fixed; right:-100%; top:0; flex-direction:column;
        background:rgba(10,10,10,0.98); width:100%; height:100vh;
        text-align:center; transition:0.3s; padding:80px 20px 20px;
        backdrop-filter:blur(10px); gap:0;
    }
    .nav-links.active { right:0; }
    .nav-links li { padding:15px 0; border-bottom:1px solid rgba(0,255,136,0.08); }
    .nav-links a { font-size:1.2rem; }
    .menu-toggle { display:flex; }
    .hero { padding:80px 15px 40px; }
    .section { padding:50px 15px; }
    .profile-img { width:120px; height:120px; font-size:3rem; }
    .btn { padding:10px 25px; font-size:0.9rem; }
    .cta-section { margin:40px 15px; padding:35px 20px; }
}
@media(max-width:400px) {
    .logo { font-size:1rem; }
    .logo i { font-size:1.2rem; }
    .glitch { font-size:1.5rem; letter-spacing:1px; }
    .cta-buttons { flex-direction:column; align-items:center; }
    .cta-buttons .btn { width:100%; justify-content:center; }
    .stats-grid { grid-template-columns:repeat(2,1fr); gap:10px; }
}