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

/* PALETA PADRÃO (Dourado Premium) */
:root {
  --color-bg: #0d0d0d;
  --color-surface: #161616;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-text: #f0ede8;
  --color-text-muted: #888;
  --color-accent: #d4a853;
  --color-accent-dim: rgba(212, 168, 83, 0.12);
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --radius: 12px;
  --transition: 0.25s ease;
  --max-width: 1100px;
}

/* ==============================
   BASE
============================== */
html { scroll-behavior: smooth; }
body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
  font-weight: 300;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
strong { font-weight: 500; color: var(--color-accent); }

/* ==============================
   HEADER
============================== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(13, 13, 13, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: border-color var(--transition);
}
.header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.header__logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  letter-spacing: 0.05em;
  color: var(--color-accent);
}
.header__nav {
  display: flex;
  gap: 2rem;
}
.header__nav a {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  text-decoration: none;
  transition: color var(--transition);
}
.header__nav a:hover { color: var(--color-text); }
.header__nav a.active { color: var(--color-accent); }

/* Botão menu mobile */
.header__menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.header__menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.header__menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.header__menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.header__menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ==============================
   HERO
============================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 8rem 2rem 4rem;
  position: relative;
  z-index: 1;
}
.hero__content { flex: 1; }
.hero__eyebrow {
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.12em;
}
.hero__title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 8vw, 6.5rem);
  line-height: 1.05;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}
.hero__sub {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
  line-height: 1.6;
}
.hero__cta { display: flex; gap: 1rem; flex-wrap: wrap; }

/* Avatar */
.hero__avatar {
  position: relative;
  width: 400px; height: 400px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.avatar-circle {
  width: 340px; height: 340px;
  border-radius: 50%;
  background: var(--color-accent-dim);
  border: 2px solid var(--color-accent);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 2;
}
.avatar-img { 
  width: 100%; 
  height: 100%; 
  object-fit: cover;
  object-position: center 20%;
}
.avatar-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(212, 168, 83, 0.2);
  animation: pulse-ring 3s ease-in-out infinite;
  width: 360px; height: 360px;
}
.avatar-ring--2 { width: 400px; height: 400px; animation-delay: 1.5s; }
@keyframes pulse-ring {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.03); }
}

/* ==============================
   BOTÕES
============================== */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: 99px;
  font-size: 0.9rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  transition: all var(--transition);
  cursor: pointer;
}
.btn--primary {
  background: var(--color-accent);
  color: #0d0d0d;
  border: 1px solid var(--color-accent);
}
.btn--primary:hover {
  background: transparent;
  color: var(--color-accent);
}
.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn--ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ==============================
   SEÇÕES
============================== */
.section {
  position: relative;
  z-index: 1;
  padding: 6rem 2rem;
}
.section--alt {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.section__inner {
  max-width: var(--max-width);
  margin: 0 auto;
}
.section__label {
  display: block;
  font-size: 0.8rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}
.section__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  letter-spacing: -0.01em;
  margin-bottom: 3rem;
  line-height: 1.1;
}

/* ==============================
   SOBRE
============================== */
.sobre__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}
.sobre__text {
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1.8;
}
.sobre__badges {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.5rem;
}
.chip {
  display: inline-block;
  padding: 0.35rem 0.9rem;
  background: var(--color-accent-dim);
  border: 1px solid rgba(212, 168, 83, 0.25);
  border-radius: 99px;
  font-size: 0.8rem;
  color: var(--color-accent);
  font-weight: 400;
  letter-spacing: 0.03em;
}

/* ==============================
   HABILIDADES
============================== */
.skills__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}
.skill-card {
  padding: 1.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  transition: border-color var(--transition), transform var(--transition);
}
.skill-card:hover {
  border-color: rgba(212, 168, 83, 0.3);
  transform: translateY(-3px);
}
.skill-card__icon {
  font-size: 1.4rem;
  color: var(--color-accent);
  margin-bottom: 1rem;
  display: block;
}
.skill-card__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 400;
  margin-bottom: 0.6rem;
  color: var(--color-text);
}
.skill-card__desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ==============================
   PROJETOS
============================== */
.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}
.project-card {
  padding: 1.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: border-color var(--transition), transform var(--transition);
}
.project-card:hover {
  border-color: rgba(212, 168, 83, 0.3);
  transform: translateY(-3px);
}
.project-card__top {
  display: flex;
  gap: 0.5rem;
}
.project-tag {
  font-size: 0.75rem;
  font-weight: 400;
  padding: 0.2rem 0.65rem;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  letter-spacing: 0.03em;
}
.project-tag--java { color: #f89b29; border-color: rgba(248, 155, 41, 0.3); background: rgba(248, 155, 41, 0.08); }
.project-tag--api  { color: #5cadff; border-color: rgba(92, 173, 255, 0.3); background: rgba(92, 173, 255, 0.08); }
.project-tag--js   { color: #f7df1e; border-color: rgba(247, 223, 30, 0.3); background: rgba(247, 223, 30, 0.08); }
.project-card__title {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--color-text);
}
.project-card__desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  flex: 1;
}
.project-card__link {
  font-size: 0.85rem;
  color: var(--color-accent);
  font-weight: 400;
  transition: letter-spacing var(--transition);
  display: inline-block;
  margin-top: auto;
}
.project-card__link:hover { letter-spacing: 0.03em; }

/* ==============================
   CONTATO
============================== */
.contact__inner { text-align: center; }
.contact__inner .section__title { margin-bottom: 1rem; }
.contact__sub {
  color: var(--color-text-muted);
  font-size: 1rem;
  max-width: 480px;
  margin: 0 auto 2.5rem;
}
.contact__links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}
.contact__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1.75rem;
  border: 1px solid var(--color-border);
  border-radius: 99px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  transition: all var(--transition);
}
.contact__btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ==============================
   FOOTER
============================== */
.footer {
  text-align: center;
  padding: 2rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
  position: relative;
  z-index: 1;
}

/* ==============================
   ANIMAÇÕES DE ENTRADA
============================== */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  will-change: opacity, transform;
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Estados de focus para acessibilidade */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* ==============================
   RESPONSIVO
============================== */
@media (max-width: 768px) {
  .header__menu-toggle { display: flex; }
  .header__nav {
    position: fixed;
    top: 60px; left: 0; right: 0; bottom: 0;
    background: rgba(13, 13, 13, 0.98);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    opacity: 0; visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
  }
  .header__nav.open { opacity: 1; visibility: visible; }
  .header__nav a { font-size: 1.25rem; }
  .hero { flex-direction: column-reverse; text-align: center; padding-top: 7rem; }
  .hero__cta { justify-content: center; }
  .hero__avatar { width: 280px; height: 280px; }
  .avatar-circle { width: 240px; height: 240px; }
  .avatar-ring { width: 260px; height: 260px; }
  .avatar-ring--2 { width: 280px; height: 280px; }
  .sobre__grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .section { padding: 4rem 1.25rem; }
  .header__inner { padding: 1rem 1.25rem; }
  .hero { padding: 6rem 1.25rem 3rem; }
}