/* =============================================
   GUSTAVO ALVES — style.css
   Portfólio Front-end
============================================= */

/* ── RESET & VARIÁVEIS ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0a0a0a;
  --bg2: #111111;
  --bg3: #1a1a1a;
  --accent: #c8ff00;
  --accent2: #ff4d6d;
  --accent3: #00d4ff;
  --text: #f0f0f0;
  --muted: #666;
  --border: #222;
  --card: #141414;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Syne', sans-serif;
  cursor: none;
  overflow-x: hidden;
}

/* ── CURSOR ── */
#cursor {
  width: 12px; height: 12px;
  background: var(--accent);
  border-radius: 50%;
  position: fixed; top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.1s, width 0.2s, height 0.2s, background 0.2s;
  mix-blend-mode: difference;
}
#cursor-ring {
  width: 36px; height: 36px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  position: fixed; top: 0; left: 0;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: transform 0.15s ease, width 0.3s, height 0.3s, opacity 0.3s;
  opacity: 0.5;
}
body:hover #cursor { opacity: 1; }

/* ── NOISE OVERLAY ── */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9000;
  opacity: 0.4;
}

/* ── NAV ── */
nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 20px 48px;
  display: flex; align-items: center; justify-content: space-between;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s, background 0.3s, backdrop-filter 0.3s;
}
nav.scrolled {
  border-color: var(--border);
  background: rgba(10,10,10,0.85);
  backdrop-filter: blur(12px);
}
.nav-logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.6rem;
  letter-spacing: 2px;
  color: var(--accent);
}
.nav-links { display: flex; gap: 32px; list-style: none; }
.nav-links a {
  font-family: 'DM Mono', monospace;
  font-size: 0.75rem;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.2s;
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute; bottom: -3px; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width 0.25s;
}
.nav-links a:hover { color: var(--accent); }
.nav-links a:hover::after { width: 100%; }

/* ── HERO ── */
#hero {
  min-height: 100vh;
  display: flex; flex-direction: column;
  justify-content: flex-end;
  padding: 0 48px 64px;
  position: relative;
  overflow: hidden;
}

.hero-grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 40%, transparent 100%);
  opacity: 0.4;
}

.hero-eyebrow {
  font-family: 'DM Mono', monospace;
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 16px;
  opacity: 0;
  transform: translateY(10px);
  animation: fadeUp 0.6s 0.2s forwards;
}

.hero-name {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(5rem, 15vw, 14rem);
  line-height: 0.9;
  letter-spacing: -0.01em;
  position: relative;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 0.8s 0.4s forwards;
}
.hero-name span { color: var(--accent); }

.hero-tagline {
  margin-top: 28px;
  display: flex; align-items: center; gap: 24px;
  opacity: 0;
  transform: translateY(10px);
  animation: fadeUp 0.6s 0.7s forwards;
}
.hero-tagline p {
  font-size: 1rem;
  color: var(--muted);
  max-width: 400px;
  line-height: 1.6;
}
.hero-cta {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 28px;
  background: var(--accent);
  color: #000;
  font-family: 'DM Mono', monospace;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  white-space: nowrap;
}
.hero-cta:hover {
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 var(--accent2);
}

.hero-scroll-hint {
  position: absolute; bottom: 32px; right: 48px;
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  writing-mode: vertical-rl;
  opacity: 0;
  animation: fadeUp 0.6s 1.1s forwards;
  display: flex; align-items: center; gap: 8px;
}
.hero-scroll-hint::after {
  content: '';
  width: 1px; height: 48px;
  background: var(--border);
  display: block;
}

/* ── STATUS PILL ── */
.status-pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 99px;
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.05em;
  margin-bottom: 12px;
  opacity: 0;
  animation: fadeUp 0.5s 0.1s forwards;
}
.status-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #3ecf8e;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

/* ── MARQUEE ── */
.marquee-wrap {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
  overflow: hidden;
  background: var(--bg2);
}
.marquee-track {
  display: flex; gap: 48px;
  width: max-content;
  animation: marquee 18s linear infinite;
}
.marquee-item {
  font-family: 'DM Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
  display: flex; align-items: center; gap: 12px;
}
.marquee-item::before {
  content: '●';
  color: var(--accent);
  font-size: 0.4rem;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ── SECTIONS ── */
section { padding: 100px 48px; }

.section-label {
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  color: var(--accent);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.section-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2.5rem, 6vw, 5rem);
  line-height: 1;
  margin-bottom: 48px;
  color: var(--text);
}

/* ── ABOUT ── */
#about { border-top: 1px solid var(--border); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}
.about-text p {
  font-size: 1.05rem;
  line-height: 1.8;
  color: #aaa;
  margin-bottom: 16px;
}
.about-text p strong { color: var(--text); font-weight: 600; }

.skills-grid {
  display: flex; flex-direction: column; gap: 20px;
}
.skill-row { display: flex; flex-direction: column; gap: 6px; }
.skill-header {
  display: flex; justify-content: space-between;
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  color: var(--muted);
}
.skill-bar {
  height: 3px;
  background: var(--bg3);
  border-radius: 99px;
  overflow: hidden;
}
.skill-fill {
  height: 100%;
  background: var(--accent);
  border-radius: 99px;
  width: 0;
  transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}
.skill-fill.accent2 { background: var(--accent2); }
.skill-fill.accent3 { background: var(--accent3); }

/* ── PROJECTS ── */
#projects { border-top: 1px solid var(--border); background: var(--bg); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1px;
  border: 1px solid var(--border);
  background: var(--border);
}

.project-card {
  background: var(--card);
  padding: 36px;
  position: relative;
  overflow: hidden;
  cursor: none;
  transition: background 0.25s;
  display: flex; flex-direction: column; gap: 12px;
}
.project-card:hover { background: var(--bg3); }

.project-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s;
}
.project-card:hover::before { transform: scaleX(1); }

.project-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 3rem;
  color: var(--border);
  line-height: 1;
  transition: color 0.25s;
}
.project-card:hover .project-num { color: var(--accent); opacity: 0.4; }

.project-tags {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-bottom: 4px;
}
.tag {
  font-family: 'DM Mono', monospace;
  font-size: 0.6rem;
  padding: 3px 8px;
  border: 1px solid var(--border);
  border-radius: 2px;
  color: var(--muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.project-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
}

.project-desc {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.7;
  flex: 1;
}

.project-links {
  display: flex; gap: 12px;
  margin-top: 8px;
}
.project-link {
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  text-decoration: none;
  display: flex; align-items: center; gap: 4px;
  transition: gap 0.2s;
}
.project-link:hover { gap: 8px; }
.project-link.secondary { color: var(--muted); }

/* featured card */
.project-card.featured {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}
.project-card.featured .project-num { font-size: 6rem; }
.project-card.featured::before { background: var(--accent2); }

/* ── CONTACT ── */
#contact {
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 120px 48px;
  position: relative;
  overflow: hidden;
}
#contact::before {
  content: 'CONTATO';
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(6rem, 20vw, 18rem);
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  color: var(--bg3);
  z-index: 0;
  white-space: nowrap;
  pointer-events: none;
}
.contact-inner { position: relative; z-index: 1; }
.contact-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2.5rem, 8vw, 6rem);
  line-height: 1;
  margin-bottom: 24px;
}
.contact-title span { color: var(--accent); }
.contact-sub {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 40px;
  line-height: 1.6;
}
.contact-links {
  display: flex; justify-content: center;
  gap: 16px; flex-wrap: wrap;
}
.contact-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px;
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid var(--border);
  color: var(--muted);
  transition: color 0.2s, border-color 0.2s, transform 0.2s;
}
.contact-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-2px);
}
.contact-btn.primary {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
}
.contact-btn.primary:hover {
  background: transparent;
  color: var(--accent);
  transform: translateY(-2px);
}

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--border);
  padding: 24px 48px;
  display: flex; justify-content: space-between; align-items: center;
}
footer p {
  font-family: 'DM Mono', monospace;
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.05em;
}
footer span { color: var(--accent); }

/* ── ANIMAÇÕES ── */
@keyframes fadeUp {
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── RESPONSIVO ── */
@media (max-width: 768px) {
  nav { padding: 20px 24px; }
  .nav-links { display: none; }
  #hero { padding: 0 24px 48px; }
  section { padding: 64px 24px; }
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .project-card.featured {
    grid-column: span 1;
    grid-template-columns: 1fr;
  }
  .projects-grid { grid-template-columns: 1fr; }
  #contact { padding: 80px 24px; }
  footer { flex-direction: column; gap: 8px; text-align: center; }
  .hero-scroll-hint { display: none; }
}