/* ═══════════════════════════════════════════════
   CAIO HENRIQUE DIAS — PORTFOLIO
   style.css
═══════════════════════════════════════════════ */

/* ── Variables ── */
:root {
  --blue: #0066FF;
  --cyan: #00E5FF;
  --dark: #0A0A0A;
  --dark-2: #111111;
  --dark-3: #181818;
  --dark-4: #222222;
  --border: rgba(255,255,255,0.07);
  --border-bright: rgba(0,229,255,0.25);
  --text: #E8E8E8;
  --text-muted: #888;
  --text-dim: #555;
  --font-display: 'Inter', sans-serif;
  --font-body: 'DM Sans', sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4,0,0.2,1);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--dark);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

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

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

/* ── Container ── */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Section base ── */
.section {
  padding: 100px 0;
}

.section-label {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  color: var(--cyan);
  letter-spacing: 0.12em;
  text-transform: lowercase;
  margin-bottom: 16px;
  opacity: 0.85;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
  margin-bottom: 56px;
}

.accent { color: var(--cyan); }

/* ═══════════════════════ NAVBAR ═══════════════════════ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background var(--transition), border-bottom var(--transition);
}

.navbar.scrolled {
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
}

.dot { color: var(--cyan); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  padding: 8px 14px;
  border-radius: 8px;
  transition: color var(--transition), background var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: #fff;
  background: rgba(255,255,255,0.06);
}

.nav-cta {
  color: var(--cyan) !important;
  border: 1px solid rgba(0,229,255,0.3);
  padding: 8px 18px;
}

.nav-cta:hover {
  background: rgba(0,229,255,0.1) !important;
  border-color: var(--cyan);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* Mobile menu */
.mobile-menu {
  display: none;
  flex-direction: column;
  background: rgba(10,10,10,0.97);
  border-top: 1px solid var(--border);
  padding: 16px 24px 24px;
}

.mobile-menu.open { display: flex; }

.mobile-link {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-muted);
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  transition: color var(--transition);
}

.mobile-link:last-child { border-bottom: none; }
.mobile-link:hover { color: var(--cyan); }

/* ═══════════════════════ HERO ═══════════════════════ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 24px 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* Subtle grid */
.grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,229,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* Glows */
.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  pointer-events: none;
}

.glow-1 {
  width: 600px; height: 600px;
  background: rgba(0,102,255,0.12);
  top: -100px; right: -100px;
}

.glow-2 {
  width: 400px; height: 400px;
  background: rgba(0,229,255,0.07);
  bottom: -80px; left: -80px;
}

.hero-content {
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--cyan);
  background: rgba(0,229,255,0.08);
  border: 1px solid rgba(0,229,255,0.2);
  padding: 7px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.badge-dot {
  width: 7px; height: 7px;
  background: var(--cyan);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 9rem);
  font-weight: 800;
  line-height: 0.9;
  color: #fff;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.name-accent {
  color: transparent;
  -webkit-text-stroke: 2px var(--cyan);
  text-stroke: 2px var(--cyan);
}

.hero-title {
  font-family: var(--font-body);
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  font-weight: 400;
  color: var(--text-muted);
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

.sep { color: var(--blue); margin: 0 8px; }

.hero-tagline {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 600;
  color: var(--text);
  margin-bottom: 40px;
  font-style: italic;
  opacity: 0.85;
}

.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: 10px;
  letter-spacing: 0.02em;
  transition: all var(--transition);
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--blue);
  color: #fff;
}

.btn-primary:hover {
  background: #1a7aff;
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,102,255,0.35);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0,229,255,0.06);
  transform: translateY(-2px);
}

/* Scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 32px;
  left: 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-dim);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.scroll-line {
  width: 40px;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% { transform: scaleX(0); transform-origin: left; }
  50% { transform: scaleX(1); transform-origin: left; }
  51% { transform: scaleX(1); transform-origin: right; }
  100% { transform: scaleX(0); transform-origin: right; }
}

/* ═══════════════════════ SOBRE ═══════════════════════ */
.sobre { background: var(--dark-2); }

.sobre-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  align-items: start;
  max-width: 720px;
}

.sobre-text p {
  color: var(--text-muted);
  margin-bottom: 16px;
  font-size: 1.05rem;
  line-height: 1.8;
}

.sobre-text p strong { color: var(--text); font-weight: 500; }

.sobre-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.stat-card {
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 6px;
  transition: border-color var(--transition), transform var(--transition);
}

.stat-card:hover {
  border-color: rgba(0,229,255,0.2);
  transform: translateY(-3px);
}

.stat-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--cyan);
  line-height: 1;
}

.stat-label {
  font-size: 12px;
  color: var(--text-dim);
  text-align: center;
  line-height: 1.3;
}

/* ═══════════════════════ HABILIDADES ═══════════════════════ */
.habilidades { background: var(--dark); }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}

.skill-group {
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: border-color var(--transition), transform var(--transition);
}

.skill-group:hover {
  border-color: var(--border-bright);
  transform: translateY(-4px);
}

.skill-group-title {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.skill-icon { color: var(--cyan); font-size: 16px; }

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 100px;
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.tag:hover {
  background: rgba(0,229,255,0.1);
  border-color: rgba(0,229,255,0.3);
  color: var(--cyan);
}

/* Soft skills */
.soft-skills {
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.soft-title {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}

.soft-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.soft-item {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  background: rgba(0,102,255,0.08);
  border: 1px solid rgba(0,102,255,0.2);
  padding: 8px 18px;
  border-radius: 100px;
  transition: all var(--transition);
}

.soft-item:hover {
  background: rgba(0,102,255,0.15);
  border-color: var(--blue);
  color: #7eb8ff;
}

/* ═══════════════════════ PROJETOS ═══════════════════════ */
.projetos { background: var(--dark-2); }

.project-card {
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
}

.project-card:hover {
  border-color: rgba(0,102,255,0.3);
  transform: translateY(-4px);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.project-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}

.status-dot {
  width: 8px; height: 8px;
  background: var(--cyan);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.project-link {
  font-size: 13px;
  font-weight: 600;
  color: var(--cyan);
  border: 1px solid rgba(0,229,255,0.25);
  padding: 6px 14px;
  border-radius: 8px;
  transition: all var(--transition);
}

.project-link:hover {
  background: rgba(0,229,255,0.1);
  border-color: var(--cyan);
}

.project-title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 20px;
}

.project-desc {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 28px;
  max-width: 700px;
}

.project-desc strong { color: var(--text); font-weight: 500; }

.project-highlights {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 28px;
  padding: 20px 24px;
  background: rgba(255,255,255,0.03);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.highlight {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
}

.highlight-icon { font-size: 16px; }

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ptag {
  font-size: 12px;
  font-weight: 600;
  padding: 5px 14px;
  border-radius: 100px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: rgba(255,255,255,0.03);
  letter-spacing: 0.03em;
}

.ptag-java {
  color: #f89820;
  border-color: rgba(248,152,32,0.3);
  background: rgba(248,152,32,0.06);
}

.ptag-green {
  color: #4ade80;
  border-color: rgba(74,222,128,0.3);
  background: rgba(74,222,128,0.06);
}

/* ═══════════════════════ FORMAÇÃO ═══════════════════════ */
.formacao { background: var(--dark); }

.timeline {
  position: relative;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px; top: 8px; bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), var(--blue), transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: 36px;
}

.timeline-item:last-child { margin-bottom: 0; }

.timeline-marker {
  position: absolute;
  left: -29px;
  top: 6px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--dark-3);
  border: 2px solid var(--text-dim);
  transition: border-color var(--transition);
}

.timeline-marker.current {
  background: var(--cyan);
  border-color: var(--cyan);
  box-shadow: 0 0 12px rgba(0,229,255,0.5);
}

.timeline-marker.ongoing {
  background: var(--blue);
  border-color: var(--blue);
  box-shadow: 0 0 12px rgba(0,102,255,0.4);
}

.timeline-item:hover .timeline-marker {
  border-color: var(--cyan);
}

.timeline-content {
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  transition: border-color var(--transition);
}

.timeline-item:hover .timeline-content {
  border-color: var(--border-bright);
}

.timeline-year {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-dim);
  letter-spacing: 0.05em;
}

.timeline-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  margin: 4px 0 4px;
}

.timeline-org {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.timeline-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 100px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.current-badge {
  background: rgba(0,229,255,0.1);
  color: var(--cyan);
  border: 1px solid rgba(0,229,255,0.25);
}

.ongoing-badge {
  background: rgba(0,102,255,0.1);
  color: #7eb8ff;
  border: 1px solid rgba(0,102,255,0.25);
}

.done-badge {
  background: rgba(255,255,255,0.05);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

/* ═══════════════════════ CONTATO ═══════════════════════ */
.contato { background: var(--dark-2); }

.contato-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 580px;
  margin-bottom: 40px;
  line-height: 1.8;
}

.contato-cards {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 600px;
}

.contato-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--dark-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 28px;
  transition: all var(--transition);
}

.contato-card:hover {
  border-color: var(--border-bright);
  transform: translateX(6px);
  background: rgba(0,229,255,0.04);
}

.contato-icon {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  color: var(--cyan);
  width: 44px; height: 44px;
  background: rgba(0,229,255,0.08);
  border: 1px solid rgba(0,229,255,0.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contato-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.contato-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.contato-value {
  font-size: 14px;
  color: var(--text);
  font-weight: 500;
}

.contato-arrow {
  color: var(--text-dim);
  font-size: 18px;
  transition: color var(--transition);
}

.contato-card:hover .contato-arrow { color: var(--cyan); }

/* ═══════════════════════ FOOTER ═══════════════════════ */
.footer {
  background: var(--dark);
  border-top: 1px solid var(--border);
  padding: 28px 0;
}

.footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 800;
  color: #fff;
}

.footer-copy {
  font-size: 13px;
  color: var(--text-dim);
}

/* ═══════════════════════ BACK TO TOP ═══════════════════════ */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px; height: 44px;
  background: var(--dark-3);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 18px;
  border-radius: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: all var(--transition);
  z-index: 90;
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.back-to-top:hover {
  background: var(--dark-4);
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-3px);
}

/* ═══════════════════════ REVEAL ANIMATIONS ═══════════════════════ */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s cubic-bezier(0.22,1,0.36,1), transform 0.65s cubic-bezier(0.22,1,0.36,1);
}

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

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* ═══════════════════════ RESPONSIVE ═══════════════════════ */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }

  .section { padding: 72px 0; }

  .sobre-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .sobre-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }

  .hero-name { font-size: clamp(3rem, 16vw, 5.5rem); }

  .project-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .project-highlights {
    flex-direction: column;
    gap: 14px;
  }

  .project-card { padding: 28px 20px; }

  .footer .container {
    flex-direction: column;
    text-align: center;
  }

  .back-to-top { bottom: 20px; right: 20px; }

  .hero-scroll { display: none; }
}

@media (max-width: 480px) {
  .hero-btns { flex-direction: column; }
  .btn { justify-content: center; }
  .contato-card { padding: 18px; }
}