/* ═══════════════════════════════════════════
   TOKENS & RESET
═══════════════════════════════════════════ */
:root {
  --clr-bg:       #080c14;
  --clr-bg2:      #0d1320;
  --clr-surface:  #111827;
  --clr-border:   rgba(255,255,255,.07);
  --clr-accent:   #3b82f6;
  --clr-accent2:  #8b5cf6;
  --clr-gold:     #f59e0b;
  --clr-text:     #e2e8f0;
  --clr-muted:    #64748b;
  --font-main:    'Outfit', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;
  --radius-lg:    1.25rem;
  --radius-md:    .75rem;
  --transition:   .3s cubic-bezier(.4,0,.2,1);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--clr-bg);
  color: var(--clr-text);
  font-family: var(--font-main);
  font-size: 1rem;
  line-height: 1.6;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a  { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* ═══════════════════════════════════════════
   UTILITIES
═══════════════════════════════════════════ */
.container {
  width: min(1120px, 92vw);
  margin-inline: auto;
}

.section {
  padding: 6rem 0;
}

.section__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  text-align: center;
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: .5rem;
}

.section__sub {
  text-align: center;
  color: var(--clr-muted);
  font-size: .95rem;
  margin-bottom: 3.5rem;
  letter-spacing: .04em;
  text-transform: uppercase;
}

/* reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ═══════════════════════════════════════════
   NAVBAR
═══════════════════════════════════════════ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 5vw;
  background: rgba(8,12,20,.6);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--clr-border);
  transition: background var(--transition);
}

.nav__logo {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -.02em;
}
.nav__logo span { color: var(--clr-accent); }

.nav__links {
  display: flex;
  gap: 2rem;
}
.nav__links a {
  font-size: .9rem;
  font-weight: 500;
  color: var(--clr-muted);
  transition: color var(--transition);
  position: relative;
}
.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--clr-accent);
  border-radius: 99px;
  transition: width var(--transition);
}
.nav__links a:hover { color: var(--clr-text); }
.nav__links a:hover::after { width: 100%; }

/* ═══════════════════════════════════════════
   HERO
═══════════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: 4rem;
}

/* grid lines bg */
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(59,130,246,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59,130,246,.06) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

/* floating particles */
.hero__particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero__particles::before,
.hero__particles::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: .25;
  animation: float 8s ease-in-out infinite alternate;
}
.hero__particles::before {
  width: 480px; height: 480px;
  background: radial-gradient(circle, var(--clr-accent), transparent 70%);
  top: -100px; left: -80px;
}
.hero__particles::after {
  width: 380px; height: 380px;
  background: radial-gradient(circle, var(--clr-accent2), transparent 70%);
  bottom: -80px; right: -60px;
  animation-delay: -4s;
}
@keyframes float {
  from { transform: translate(0,0) scale(1); }
  to   { transform: translate(30px, 20px) scale(1.05); }
}

.hero__content {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 4rem;
  flex-wrap: wrap;
  justify-content: center;
  text-align: left;
  padding: 2rem 5vw;
}

/* photo */
.hero__photo-wrap {
  position: relative;
  flex-shrink: 0;
}
.hero__photo {
  width: 240px;
  height: 240px;
  object-fit: cover;
  object-position: center top;
  border-radius: 50%;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 4px rgba(59,130,246,.4);
  transition: transform var(--transition);
}
.hero__photo:hover { transform: scale(1.04); }

.hero__photo-ring {
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  border: 2px dashed rgba(59,130,246,.3);
  animation: spin 18s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.hero__photo-glow {
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(59,130,246,.2), transparent 70%);
  animation: pulse 3s ease-in-out infinite alternate;
}
@keyframes pulse {
  from { opacity: .4; transform: scale(.95); }
  to   { opacity: 1;  transform: scale(1.05); }
}

/* text */
.hero__text { max-width: 540px; }

.hero__greeting {
  font-size: 1rem;
  color: var(--clr-accent);
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: .1em;
  margin-bottom: .4rem;
}

.hero__name {
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.2rem;
}
.hero__name span {
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-bottom: 2rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-size: .82rem;
  font-weight: 500;
  padding: .35rem .9rem;
  border-radius: 99px;
  background: rgba(59,130,246,.1);
  border: 1px solid rgba(59,130,246,.25);
  color: var(--clr-text);
  backdrop-filter: blur(8px);
  transition: background var(--transition), border-color var(--transition);
}
.tag:hover {
  background: rgba(59,130,246,.2);
  border-color: rgba(59,130,246,.5);
}

.hero__cta { display: flex; gap: 1rem; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.75rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: .95rem;
  font-family: var(--font-main);
  cursor: pointer;
  border: none;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}
.btn--primary {
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-accent2));
  color: #fff;
  box-shadow: 0 4px 24px rgba(59,130,246,.4);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(59,130,246,.55);
}
.btn--outline {
  background: transparent;
  color: var(--clr-text);
  border: 1px solid var(--clr-border);
}
.btn--outline:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  transform: translateY(-2px);
}

/* scroll hint */
.hero__scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
}
.hero__scroll-hint span {
  display: block;
  width: 22px; height: 36px;
  border: 2px solid rgba(255,255,255,.2);
  border-radius: 99px;
  position: relative;
}
.hero__scroll-hint span::after {
  content: '';
  position: absolute;
  top: 6px; left: 50%;
  transform: translateX(-50%);
  width: 4px; height: 8px;
  background: var(--clr-accent);
  border-radius: 99px;
  animation: scroll-bounce 1.6s ease-in-out infinite;
}
@keyframes scroll-bounce {
  0%,100% { top: 6px; opacity: 1; }
  50%      { top: 18px; opacity: .3; }
}

/* ═══════════════════════════════════════════
   SOBRE
═══════════════════════════════════════════ */
.sobre { background: var(--clr-bg2); }

.sobre__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.sobre__card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.sobre__card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(59,130,246,.05), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}
.sobre__card:hover {
  transform: translateY(-6px);
  border-color: rgba(59,130,246,.3);
  box-shadow: 0 20px 40px rgba(0,0,0,.4);
}
.sobre__card:hover::before { opacity: 1; }

.sobre__icon {
  font-size: 2.2rem;
  margin-bottom: 1rem;
}
.sobre__card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: .75rem;
  color: #fff;
}
.sobre__card p {
  color: var(--clr-muted);
  font-size: .93rem;
  line-height: 1.7;
}
.sobre__card p strong { color: var(--clr-accent); }

/* ═══════════════════════════════════════════
   TIMELINE
═══════════════════════════════════════════ */
.timeline-sec { background: var(--clr-bg); }

.timeline {
  position: relative;
  max-width: 680px;
  margin-inline: auto;
  padding-left: 2rem;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 8px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--clr-accent), var(--clr-accent2), transparent);
  border-radius: 99px;
}

.timeline__item {
  position: relative;
  margin-bottom: 2.5rem;
}

.timeline__dot {
  position: absolute;
  left: -2rem;
  top: .4rem;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--clr-accent);
  border: 2px solid var(--clr-bg);
  box-shadow: 0 0 0 3px rgba(59,130,246,.3);
  transition: box-shadow var(--transition), transform var(--transition);
}
.timeline__dot--highlight {
  background: var(--clr-gold);
  box-shadow: 0 0 0 3px rgba(245,158,11,.3);
  animation: glow-dot 2s ease-in-out infinite alternate;
}
@keyframes glow-dot {
  from { box-shadow: 0 0 0 3px rgba(245,158,11,.3); }
  to   { box-shadow: 0 0 0 8px rgba(245,158,11,.15), 0 0 16px rgba(245,158,11,.4); }
}

.timeline__item:hover .timeline__dot {
  transform: scale(1.4);
}

.timeline__content {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.timeline__item:hover .timeline__content {
  border-color: rgba(59,130,246,.3);
  box-shadow: 0 8px 32px rgba(0,0,0,.3);
}

.timeline__year {
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--clr-accent);
  display: block;
  margin-bottom: .3rem;
}
.timeline__content h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: .4rem;
  color: #fff;
}
.timeline__content p {
  font-size: .9rem;
  color: var(--clr-muted);
  line-height: 1.65;
}

/* ═══════════════════════════════════════════
   SKILLS
═══════════════════════════════════════════ */
.skills-sec { background: var(--clr-bg2); }

.skills__grid {
  display: flex;
  flex-wrap: wrap;
  gap: .85rem;
  justify-content: center;
  margin-bottom: 3rem;
}

.skill-pill {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .6rem 1.3rem;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: 99px;
  font-size: .9rem;
  font-weight: 500;
  cursor: default;
  transition: transform var(--transition), border-color var(--transition), background var(--transition);
}
.skill-pill:hover {
  transform: translateY(-3px) scale(1.04);
  border-color: var(--clr-accent);
  background: rgba(59,130,246,.1);
}

.skill-pill__icon { font-size: 1.1rem; }

/* achievements */
.achievements {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  justify-content: center;
}

.ach-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem 2.5rem;
  min-width: 160px;
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.ach-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--clr-accent), var(--clr-accent2));
}
.ach-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 40px rgba(0,0,0,.4);
}

.ach-card__num {
  font-size: 2.2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--clr-accent), var(--clr-accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: .4rem;
}
.ach-card__label {
  font-size: .8rem;
  color: var(--clr-muted);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: .05em;
}

/* ═══════════════════════════════════════════
   CONTATO
═══════════════════════════════════════════ */
.contato-sec { background: var(--clr-bg); }

.contato__links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  justify-content: center;
}

.contato__btn {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  padding: 1rem 2rem;
  border-radius: var(--radius-md);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  font-weight: 600;
  font-size: .95rem;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition), background var(--transition);
}
.contato__btn svg { width: 20px; height: 20px; flex-shrink: 0; }
.contato__btn:hover {
  transform: translateY(-4px);
  border-color: var(--clr-accent);
  background: rgba(59,130,246,.1);
  box-shadow: 0 8px 24px rgba(59,130,246,.2);
}

/* ═══════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════ */
.footer {
  text-align: center;
  padding: 2rem;
  color: var(--clr-muted);
  font-size: .85rem;
  border-top: 1px solid var(--clr-border);
  background: var(--clr-bg2);
}
.footer strong { color: var(--clr-text); }

/* ═══════════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════════ */
@media (max-width: 640px) {
  .nav__links { display: none; }
  .hero__content { flex-direction: column; text-align: center; gap: 2rem; }
  .hero__tags { justify-content: center; }
  .hero__cta { justify-content: center; }
  .hero__photo { width: 180px; height: 180px; }
  .timeline { padding-left: 1.5rem; }
}