/* ============================================================
   tavareslab.com — main.css
   Autor: Guilherme Tavares
   ============================================================ */

/* ------------------------------------------------------------
   1. RESET & ROOT VARIABLES
   ------------------------------------------------------------ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg:        #050810;
  --bg2:       #090e1a;
  --bg3:       #0d1525;
  --blue:      #2563eb;
  --blue-mid:  #3b82f6;
  --blue-lite: #60a5fa;
  --blue-glow: #93c5fd;
  --cyan:      #06b6d4;
  --text:      #e2e8f0;
  --muted:     #64748b;
  --border:    rgba(59, 130, 246, 0.18);
  --card:      rgba(13, 21, 37, 0.85);
  --mono:      'Space Mono', monospace;
  --sans:      'Syne', sans-serif;
}

html {
  scroll-behavior: smooth;
}

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

/* ------------------------------------------------------------
   2. BACKGROUND EFFECTS (noise + grid)
   ------------------------------------------------------------ */
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: 0;
  opacity: 0.4;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(37, 99, 235, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(37, 99, 235, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* ------------------------------------------------------------
   3. CUSTOM CURSOR
   ------------------------------------------------------------ */
.cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 10px;
  height: 10px;
  background: var(--blue-mid);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transition: transform 0.1s ease;
  mix-blend-mode: screen;
}

.cursor-ring {
  position: fixed;
  top: 0;
  left: 0;
  width: 36px;
  height: 36px;
  border: 1px solid var(--blue-lite);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transition: transform 0.18s ease, width 0.2s, height 0.2s, opacity 0.2s;
  opacity: 0.5;
}

/* ------------------------------------------------------------
   4. TYPOGRAPHY
   ------------------------------------------------------------ */
h1 {
  font-size: clamp(3rem, 6vw, 5.5rem);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.section-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--cyan);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
}

.section-label::before {
  content: '// ';
}

/* ------------------------------------------------------------
   5. ANIMATIONS
   ------------------------------------------------------------ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ------------------------------------------------------------
   6. BUTTONS
   ------------------------------------------------------------ */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.8rem;
  background: var(--blue);
  color: #fff;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  border-radius: 4px;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 0 24px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
  background: var(--blue-mid);
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(59, 130, 246, 0.5);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.8rem;
  border: 1px solid var(--border);
  color: var(--blue-lite);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-decoration: none;
  border-radius: 4px;
  transition: border-color 0.2s, color 0.2s, transform 0.2s;
}

.btn-outline:hover {
  border-color: var(--blue-mid);
  color: var(--blue-glow);
  transform: translateY(-2px);
}

/* ------------------------------------------------------------
   7. TAGS
   ------------------------------------------------------------ */
.tag {
  font-family: var(--mono);
  font-size: 0.65rem;
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
  border: 1px solid var(--border);
  color: var(--blue-lite);
  letter-spacing: 0.05em;
  background: rgba(37, 99, 235, 0.06);
}

.tl-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.8rem;
}

/* ------------------------------------------------------------
   8. NAV
   ------------------------------------------------------------ */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.4rem 3rem;
  z-index: 100;
  backdrop-filter: blur(20px);
  background: rgba(5, 8, 16, 0.7);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--blue-lite);
  letter-spacing: 0.05em;
}

.nav-logo span {
  color: var(--cyan);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--blue-glow);
}

/* ------------------------------------------------------------
   9. HERO
   ------------------------------------------------------------ */
section {
  position: relative;
  z-index: 1;
}

#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 8rem 3rem 4rem;
  overflow: hidden;
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 4rem;
  align-items: center;
}

.hero-tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--cyan);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
  opacity: 0;
  animation: fadeUp 0.6s 0.2s forwards;
}

h1 .accent {
  color: var(--blue-mid);
}

h1 {
  opacity: 0;
  animation: fadeUp 0.6s 0.35s forwards;
}

.hero-sub {
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--blue-lite);
  margin-bottom: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.6s 0.5s forwards;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--muted);
  line-height: 1.7;
  max-width: 520px;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.6s 0.65s forwards;
}

.hero-btns {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.6s 0.8s forwards;
}

/* ------------------------------------------------------------
   10. HERO AVATAR
   ------------------------------------------------------------ */
.hero-avatar {
  opacity: 0;
  animation: fadeUp 0.6s 0.5s forwards;
  position: relative;
  display: flex;
  justify-content: center;
}

.avatar-frame {
  width: 300px;
  height: 300px;
  border-radius: 50%;
  border: 2px solid var(--border);
  overflow: hidden;
  position: relative;
  box-shadow: 0 0 60px rgba(37, 99, 235, 0.25), inset 0 0 40px rgba(37, 99, 235, 0.1);
}

.avatar-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(20%) contrast(1.05);
}

.avatar-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg3);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.7rem;
  gap: 0.5rem;
}

.avatar-placeholder svg {
  opacity: 0.3;
}

.avatar-ring {
  position: absolute;
  inset: -12px;
  border-radius: 50%;
  border: 1px solid rgba(59, 130, 246, 0.2);
  animation: spin 20s linear infinite;
}

.avatar-ring::before {
  content: '';
  position: absolute;
  top: 10px;
  left: 50%;
  width: 6px;
  height: 6px;
  background: var(--blue-mid);
  border-radius: 50%;
  transform: translateX(-50%);
  box-shadow: 0 0 10px var(--blue-mid);
}

/* ------------------------------------------------------------
   11. STATS BAR
   ------------------------------------------------------------ */
.stats-bar {
  display: flex;
  gap: 3rem;
  padding: 2rem 3rem;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
  position: relative;
  z-index: 1;
  overflow-x: auto;
}

.stat {
  flex-shrink: 0;
  opacity: 0;
  animation: fadeUp 0.5s forwards;
}

.stat:nth-child(1) { animation-delay: 0.9s; }
.stat:nth-child(2) { animation-delay: 1.0s; }
.stat:nth-child(3) { animation-delay: 1.1s; }
.stat:nth-child(4) { animation-delay: 1.2s; }

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

.stat-num span {
  color: var(--cyan);
}

.stat-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 0.3rem;
}

/* ------------------------------------------------------------
   12. SOBRE (ABOUT)
   ------------------------------------------------------------ */
#sobre {
  padding: 7rem 3rem;
  max-width: 1100px;
  margin: 0 auto;
}

.sobre-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
  margin-top: 3rem;
}

.sobre-text p {
  color: var(--muted);
  line-height: 1.8;
  font-size: 1.02rem;
  margin-bottom: 1.2rem;
}

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

.edu-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.4rem 1.6rem;
  margin-bottom: 1rem;
  backdrop-filter: blur(10px);
  transition: border-color 0.2s, transform 0.2s;
}

.edu-card:hover {
  border-color: var(--blue);
  transform: translateX(4px);
}

.edu-degree {
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 0.2rem;
}

.edu-school {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--blue-lite);
  letter-spacing: 0.05em;
}

/* ------------------------------------------------------------
   13. EXPERIENCE TIMELINE
   ------------------------------------------------------------ */
#experiencia {
  padding: 7rem 3rem;
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.exp-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.timeline {
  position: relative;
  margin-top: 3rem;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(to bottom, var(--blue), transparent);
}

.tl-item {
  position: relative;
  padding: 0 0 3rem 2.5rem;
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.5s, transform 0.5s;
}

.tl-item.visible {
  opacity: 1;
  transform: translateX(0);
}

.tl-dot {
  position: absolute;
  left: -6px;
  top: 6px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 12px var(--blue);
  border: 2px solid var(--bg2);
}

.tl-period {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--cyan);
  letter-spacing: 0.1em;
  margin-bottom: 0.4rem;
}

.tl-company {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
}

.tl-role {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--blue-lite);
  margin-bottom: 0.7rem;
}

.tl-desc {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.7;
  max-width: 600px;
}

/* ------------------------------------------------------------
   14. PROJECTS
   ------------------------------------------------------------ */
#projetos {
  padding: 7rem 3rem;
  max-width: 1100px;
  margin: 0 auto;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.project-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  backdrop-filter: blur(10px);
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}

.project-card:hover {
  border-color: var(--blue);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(37, 99, 235, 0.2);
}

.project-thumb {
  height: 170px;
  background: linear-gradient(135deg, var(--bg3), #0a1628);
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.project-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-thumb-label {
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--muted);
  letter-spacing: 0.1em;
}

.project-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.project-body {
  padding: 1.4rem;
}

.project-name {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.project-desc {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.project-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.project-link {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--blue-lite);
  text-decoration: none;
  letter-spacing: 0.05em;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  transition: color 0.2s;
}

.project-link:hover {
  color: var(--blue-glow);
}

.project-link svg {
  transition: transform 0.2s;
}

.project-link:hover svg {
  transform: translate(2px, -2px);
}

/* ------------------------------------------------------------
   15. SKILLS
   ------------------------------------------------------------ */
#skills {
  padding: 7rem 3rem;
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.skills-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 3rem;
}

.skill-group {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.4rem;
  backdrop-filter: blur(10px);
  transition: border-color 0.2s;
}

.skill-group:hover {
  border-color: var(--blue);
}

.skill-group-title {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--cyan);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.skill-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.6rem;
  font-size: 0.9rem;
  color: var(--text);
}

.skill-item::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--blue-mid);
  flex-shrink: 0;
}

/* ------------------------------------------------------------
   16. CONTACT
   ------------------------------------------------------------ */
#contato {
  padding: 7rem 3rem;
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.contact-desc {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 3rem;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.9rem 1.8rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  text-decoration: none;
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  background: var(--card);
  backdrop-filter: blur(10px);
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s, color 0.2s;
}

.contact-link:hover {
  border-color: var(--blue);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.2);
  color: var(--blue-glow);
}

.contact-link svg {
  flex-shrink: 0;
}

/* ------------------------------------------------------------
   17. FOOTER
   ------------------------------------------------------------ */
footer {
  text-align: center;
  padding: 2rem;
  border-top: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--muted);
  position: relative;
  z-index: 1;
}

footer span {
  color: var(--blue-lite);
}

/* ------------------------------------------------------------
   18. SCROLLBAR
   ------------------------------------------------------------ */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--blue); border-radius: 3px; }

/* ------------------------------------------------------------
   19. RESPONSIVE
   ------------------------------------------------------------ */
@media (max-width: 768px) {
  nav { padding: 1.2rem 1.5rem; }
  .nav-links { display: none; }

  #hero { padding: 7rem 1.5rem 3rem; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-avatar { order: -1; }
  .avatar-frame { width: 180px; height: 180px; }

  .stats-bar { padding: 1.5rem; gap: 2rem; }

  #sobre, #projetos, #contato { padding: 4rem 1.5rem; }
  .sobre-grid { grid-template-columns: 1fr; gap: 2rem; }

  #experiencia, #skills { padding: 4rem 1.5rem; }
}