/* ===== IMPORTS ===== */
@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,300&display=swap');

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

:root {
  --navy:       #0a1628;
  --navy-mid:   #122040;
  --blue:       #1a56db;
  --blue-light: #3b82f6;
  --accent:     #f59e0b;
  --accent-2:   #06b6d4;
  --text:       #1e293b;
  --text-soft:  #64748b;
  --border:     #e2e8f0;
  --surface:    #ffffff;
  --surface-2:  #f8fafc;
  --surface-3:  #f1f5f9;
  --red-inpi:   #8b0000;
  --radius:     10px;
  --radius-lg:  16px;
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow:     0 4px 16px rgba(0,0,0,.08), 0 1px 4px rgba(0,0,0,.05);
  --shadow-lg:  0 10px 40px rgba(0,0,0,.12), 0 2px 8px rgba(0,0,0,.06);
  --nav-h:      64px;
  --font-body:  'DM Sans', sans-serif;
  --font-head:  'DM Serif Display', serif;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  background: var(--surface-2);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--blue-light); }
img { display: block; max-width: 100%; }

/* ===== LAYOUT ===== */
.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== HEADER / NAV ===== */
header {
  background: var(--navy);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 20px rgba(0,0,0,.25);
}

.header-inner {
  display: flex;
  align-items: center;
  height: var(--nav-h);
  gap: 20px;
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.header-brand:hover { opacity: .88; }

.header-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,.3);
  object-fit: cover;
}

.header-name {
  font-family: var(--font-head);
  font-size: 1.05rem;
  color: #fff;
  line-height: 1.2;
}

.header-role {
  font-size: .7rem;
  color: rgba(255,255,255,.55);
  font-weight: 300;
  letter-spacing: .02em;
}

/* desktop nav */
#main-nav {
  margin-left: auto;
}

#main-nav ul {
  display: flex;
  list-style: none;
  gap: 2px;
}

#main-nav ul li a {
  color: rgba(255,255,255,.75);
  font-size: .82rem;
  font-weight: 500;
  padding: 6px 11px;
  border-radius: 6px;
  transition: background .18s, color .18s;
  white-space: nowrap;
}

#main-nav ul li a:hover {
  background: rgba(255,255,255,.1);
  color: #fff;
}

#main-nav ul li a.active {
  background: rgba(255,255,255,.15);
  color: #fff;
}

/* hamburger */
#menu-toggle {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
  margin-left: auto;
  padding: 4px 8px;
  line-height: 1;
}

#menu-close {
  display: none;
}

/* ===== HERO ===== */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 55%, #1e3a6e 100%);
  padding: 72px 0 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 80% 50%, rgba(26,86,219,.18) 0%, transparent 70%),
    repeating-linear-gradient(45deg, rgba(255,255,255,.012) 0px, rgba(255,255,255,.012) 1px, transparent 1px, transparent 24px);
  pointer-events: none;
}

.hero-inner {
  display: flex;
  align-items: center;
  gap: 48px;
  position: relative;
  z-index: 1;
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 24px;
}

.hero-photo {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid rgba(255,255,255,.2);
  box-shadow: 0 8px 40px rgba(0,0,0,.35);
  flex-shrink: 0;
}

.hero-text h1 {
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: #fff;
  line-height: 1.15;
  margin-bottom: 10px;
}

.hero-title {
  color: rgba(255,255,255,.65);
  font-size: .95rem;
  font-weight: 300;
  margin-bottom: 20px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
}

.tag {
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.18);
  color: rgba(255,255,255,.85);
  font-size: .72rem;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 20px;
  letter-spacing: .03em;
}

.tag.accent { background: rgba(245,158,11,.18); border-color: rgba(245,158,11,.35); color: #fbbf24; }

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 20px;
  border-radius: 8px;
  font-size: .82rem;
  font-weight: 600;
  transition: all .2s;
  text-decoration: none;
}

.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 2px 8px rgba(26,86,219,.4);
}
.btn-primary:hover { background: var(--blue-light); color: #fff; transform: translateY(-1px); }

.btn-ghost {
  background: rgba(255,255,255,.1);
  color: rgba(255,255,255,.85);
  border: 1px solid rgba(255,255,255,.2);
}
.btn-ghost:hover { background: rgba(255,255,255,.18); color: #fff; }

/* ===== SECTIONS ===== */
main section {
  padding: 64px 0;
  border-bottom: 1px solid var(--border);
}
main section:last-child { border-bottom: none; }

.section-label {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--blue);
  margin-bottom: 8px;
}

h2 {
  font-family: var(--font-head);
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--navy);
  margin-bottom: 36px;
  line-height: 1.2;
}

h2::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--blue), var(--accent-2));
  border-radius: 2px;
  margin-top: 10px;
}

.subsection-title {
  font-family: var(--font-head);
  font-size: 1.2rem;
  color: var(--navy-mid);
  margin: 44px 0 20px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

/* ===== SOBRE ===== */
#sobre p { color: var(--text); font-size: .98rem; margin-bottom: 14px; max-width: 760px; }
#sobre p:last-child { margin-bottom: 0; }

/* ===== TIMELINE (Formação + Experiência) ===== */
.timeline {
  position: relative;
  padding-left: 28px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(to bottom, var(--blue), var(--accent-2), transparent);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s, transform .2s;
}
.timeline-item:hover { box-shadow: var(--shadow); transform: translateX(3px); }

.timeline-item::before {
  content: '';
  position: absolute;
  left: -24px;
  top: 24px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--blue);
  border: 3px solid var(--surface-2);
  box-shadow: 0 0 0 2px var(--blue);
}

.timeline-item h3 {
  font-family: var(--font-head);
  font-size: 1.05rem;
  color: var(--navy);
  margin-bottom: 10px;
  line-height: 1.3;
}

.timeline-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  margin-bottom: 8px;
}

.meta-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: .78rem;
  color: var(--text-soft);
}

.meta-badge strong { color: var(--text); }

.period-chip {
  display: inline-block;
  background: var(--surface-3);
  color: var(--blue);
  font-size: .72rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  border: 1px solid var(--border);
  margin-bottom: 8px;
}

.title-line {
  font-size: .82rem;
  color: var(--text-soft);
  font-style: italic;
  margin-top: 6px;
}

/* ===== PROJETOS ===== */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: box-shadow .2s, transform .2s;
  border-top: 3px solid var(--blue);
}
.project-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.project-card.ongoing { border-top-color: var(--accent); }
.project-card.extension { border-top-color: var(--accent-2); }

.project-card h4 {
  font-family: var(--font-head);
  font-size: .95rem;
  color: var(--navy);
  line-height: 1.35;
}

.project-card p { font-size: .82rem; color: var(--text-soft); line-height: 1.55; flex-grow: 1; }

.project-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}

.status-pill {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 20px;
}
.status-pill.done  { background: #dcfce7; color: #166534; }
.status-pill.going { background: #fef3c7; color: #92400e; }
.role-pill {
  font-size: .68rem;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 20px;
  background: var(--surface-3);
  color: var(--text-soft);
  border: 1px solid var(--border);
}

/* ===== PUBLICAÇÕES ===== */
.pub-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 10px;
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: box-shadow .2s;
}
.pub-item:hover { box-shadow: var(--shadow); }

.pub-year {
  flex-shrink: 0;
  font-size: .75rem;
  font-weight: 700;
  color: var(--blue);
  background: var(--surface-3);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 4px 8px;
  min-width: 48px;
  text-align: center;
  margin-top: 2px;
}

.pub-body { flex: 1; min-width: 0; }
.pub-body strong { color: var(--navy); font-size: .9rem; line-height: 1.4; display: block; margin-bottom: 4px; }
.pub-body em { font-size: .78rem; color: var(--text-soft); display: block; margin-bottom: 6px; }

.doi-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: .72rem;
  font-weight: 600;
  color: var(--blue);
  background: rgba(26,86,219,.06);
  border: 1px solid rgba(26,86,219,.2);
  padding: 2px 9px;
  border-radius: 4px;
  transition: background .18s;
}
.doi-link:hover { background: rgba(26,86,219,.12); color: var(--blue); }

/* programa de computador / patent */
.patent-item {
  border-left: 4px solid var(--red-inpi);
}
.patent-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  margin-top: 8px;
  font-size: .75rem;
  color: var(--text-soft);
}
.badge-inpi {
  background: var(--red-inpi);
  color: #fff;
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 4px;
}

/* ===== LIVROS ===== */
.books-intro { color: var(--text-soft); margin-bottom: 28px; font-size: .95rem; }

.book-list { display: flex; flex-direction: column; gap: 24px; }

.book-series-group { margin-bottom: 36px; }
.book-series-group-title {
  font-family: var(--font-head);
  font-size: 1.15rem;
  color: var(--navy-mid);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}
.series-chip {
  font-size: .65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: 3px 9px;
  border-radius: 20px;
  background: var(--surface-3);
  color: var(--text-soft);
  border: 1px solid var(--border);
}

.book-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  display: flex;
  overflow: hidden;
  transition: box-shadow .2s, transform .2s;
}
.book-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }

.book-cover {
  width: 190px;
  flex-shrink: 0;
  display: flex;
  align-items: stretch;
  position: relative;
}

.book-cover-1 { background: linear-gradient(150deg, #0a1628 0%, #1a56db 70%, #06b6d4 100%); }
.book-cover-2 { background: linear-gradient(150deg, #064e3b 0%, #059669 70%, #34d399 100%); }
.book-cover-3 { background: linear-gradient(150deg, #2d1654 0%, #6d28d9 70%, #a78bfa 100%); }
.book-cover-4 { background: linear-gradient(150deg, #7c2d12 0%, #ea580c 70%, #fb923c 100%); }
.book-cover-5 { background: linear-gradient(150deg, #0f2027 0%, #203a43 50%, #2c5364 100%); }
.book-cover-6 { background: linear-gradient(150deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%); }
.book-cover-7 { background: linear-gradient(150deg, #3d0000 0%, #870000 60%, #c62a2a 100%); }
.book-cover-8 { background: linear-gradient(150deg, #0f2027 0%, #2c5364 50%, #134e4a 100%); }

.book-cover::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(45deg, rgba(255,255,255,.025) 0px, rgba(255,255,255,.025) 1px, transparent 1px, transparent 16px);
}
.book-cover-inner {
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  color: #fff;
  position: relative;
  z-index: 1;
  width: 100%;
}
.book-series-label {
  font-size: .62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  background: rgba(255,255,255,.15);
  padding: 3px 8px;
  border-radius: 4px;
  display: inline-block;
  width: fit-content;
  margin-bottom: 12px;
}
.book-cover-inner h4 {
  font-family: var(--font-head);
  font-size: 1.05rem;
  color: #fff;
  line-height: 1.3;
  margin-bottom: 8px;
}
.book-cover-inner p { font-size: .75rem; color: rgba(255,255,255,.8); line-height: 1.45; margin-bottom: 12px; flex-grow: 1; }
.book-author { font-size: .72rem; font-style: italic; color: rgba(255,255,255,.6); border-top: 1px solid rgba(255,255,255,.18); padding-top: 8px; display: block; }

.book-info { padding: 24px 28px; flex: 1; display: flex; flex-direction: column; justify-content: space-between; }

.book-formats { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 14px; }

.book-format {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  flex: 1;
  min-width: 150px;
}
.book-format-header { display: flex; align-items: center; gap: 7px; margin-bottom: 8px; }
.format-icon { font-size: 1rem; }
.format-name { font-weight: 700; font-size: .82rem; color: var(--navy); }
.format-badge {
  font-size: .62rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 20px;
  margin-left: auto;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.format-badge.sold    { background: #dcfce7; color: #166534; border: 1px solid #bbf7d0; }
.format-badge.presale { background: #fef3c7; color: #92400e; border: 1px solid #fde68a; }

.format-date { font-size: .74rem; color: var(--text-soft); margin-bottom: 2px; }
.format-price { font-size: 1.05rem; font-weight: 700; color: var(--navy); margin: 4px 0 10px; }

.book-store-buttons { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 6px; }

.btn-amazon {
  display: inline-block;
  background: #ff9900;
  color: #111;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: .78rem;
  font-weight: 700;
  transition: background .2s, transform .15s;
}
.btn-amazon:hover { background: #e68900; color: #111; transform: translateY(-1px); }

.btn-uiclap {
  display: inline-block;
  background: #6d28d9;
  color: #fff;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: .78rem;
  font-weight: 700;
  transition: background .2s, transform .15s;
}
.btn-uiclap:hover { background: #5b21b6; color: #fff; transform: translateY(-1px); }

.btn-gplay {
  display: inline-block;
  background: #01875f;
  color: #fff;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: .78rem;
  font-weight: 700;
  transition: background .2s, transform .15s;
}
.btn-gplay:hover { background: #016b4c; color: #fff; transform: translateY(-1px); }

.book-asin { font-size: .68rem; color: #aaa; border-top: 1px solid var(--border); padding-top: 10px; margin: 0; }

/* ===== ÁREAS ===== */
.areas-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.area-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 16px;
  font-size: .85rem;
  color: var(--text);
  box-shadow: var(--shadow-sm);
  transition: border-color .18s, box-shadow .18s;
}
.area-chip:hover { border-color: var(--blue); box-shadow: 0 2px 8px rgba(26,86,219,.12); }
.area-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--blue); flex-shrink: 0; }

/* ===== CONTATO ===== */
#contato p { color: var(--text-soft); margin-bottom: 24px; font-size: .95rem; }
.social-links { display: flex; flex-wrap: wrap; gap: 10px; }
.social-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 20px;
  border-radius: 8px;
  font-size: .85rem;
  font-weight: 500;
  box-shadow: var(--shadow-sm);
  transition: all .2s;
}
.social-links a:hover { background: var(--navy); color: #fff; border-color: var(--navy); transform: translateY(-2px); box-shadow: var(--shadow); }

/* ===== FOOTER ===== */
footer {
  background: var(--navy);
  color: rgba(255,255,255,.45);
  text-align: center;
  padding: 28px 0;
  font-size: .8rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 860px) {
  .hero-inner { flex-direction: column; text-align: center; gap: 28px; }
  .hero-photo { width: 140px; height: 140px; }
  .hero-tags { justify-content: center; }
  .hero-links { justify-content: center; }
}

@media (max-width: 700px) {
  #main-nav {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(10,22,40,.97);
    z-index: 200;
    flex-direction: column;
    align-items: center;
    justify-content: center;
  }
  #main-nav.open { display: flex; }
  #main-nav ul { flex-direction: column; align-items: center; gap: 6px; }
  #main-nav ul li a { font-size: 1.2rem; padding: 12px 32px; }
  #menu-toggle { display: block; }
  #menu-close {
    display: block;
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    color: #fff;
    font-size: 2rem;
    cursor: pointer;
    line-height: 1;
  }
  .header-name { font-size: .9rem; }
  .header-role { display: none; }
  .project-grid { grid-template-columns: 1fr; }
  .book-card { flex-direction: column; }
  .book-cover { width: 100%; min-height: 160px; }
  .book-formats { flex-direction: column; }
  .book-info { padding: 18px 20px; }
  .timeline { padding-left: 20px; }
  .timeline-item { padding: 16px 18px; }
  main section { padding: 44px 0; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero { padding: 48px 0 56px; }
  h2 { font-size: 1.5rem; margin-bottom: 24px; }
  .pub-item { flex-direction: column; gap: 8px; }
  .pub-year { align-self: flex-start; }
  .social-links a { padding: 10px 14px; font-size: .8rem; }
}