/* Reset & variables */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

:root,
html.light {
  --bg: #faf9f7;
  --bg-elevated: #ffffff;
  --text: #1a1a1a;
  --text-muted: #5c5c5c;
  --accent: #c2410c;
  --accent-hover: #9a3412;
  --border: #e5e5e5;
  --card-bg: #ffffff;
  --header-bg: rgba(250, 249, 247, 0.9);
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.08);
}

html.dark {
  --bg: #0f0f0f;
  --bg-elevated: #1a1a1a;
  --text: #f0f0f0;
  --text-muted: #a3a3a3;
  --accent: #fb923c;
  --accent-hover: #fdba74;
  --border: #2a2a2a;
  --card-bg: #1a1a1a;
  --header-bg: rgba(15, 15, 15, 0.9);
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.4);
}

h1, h2, h3 { font-family: 'Outfit', sans-serif; font-weight: 600; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header__logo {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text);
  letter-spacing: 0.02em;
}
.header__logo:hover { text-decoration: none; color: var(--accent); }

.nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav__link {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
}
.nav__link:hover { color: var(--text); text-decoration: none; }

.header__lang { display: flex; gap: 0.25rem; }
.lang-btn {
  padding: 0.35rem 0.6rem;
  font-size: 0.8rem;
  font-weight: 600;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.lang-btn:hover { color: var(--text); }
.lang-btn--active { background: var(--accent); border-color: var(--accent); color: #fff; }
.lang-btn--active:hover { color: #fff; }

.theme-toggle {
  padding: 0.5rem;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
}
.theme-toggle .theme-toggle__icon--dark { display: none; }
html.dark .theme-toggle .theme-toggle__icon--light { display: none; }
html.dark .theme-toggle .theme-toggle__icon--dark { display: inline; }

.menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 0.5rem;
  background: none;
  border: none;
  cursor: pointer;
}
.menu-btn span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 1px;
}

/* Hero */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  max-width: 1100px;
  margin: 0 auto;
  padding: 4rem 1.5rem 5rem;
  min-height: 85vh;
}
/* Opção 1: textura sutil (papel/linho) – full width */
.hero::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  top: 0;
  bottom: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.4;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 180px 180px;
}
html.dark .hero::before {
  opacity: 0.25;
}

.hero__label {
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin: 0 0 0.5rem;
}

.hero__title {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  margin: 0 0 0.75rem;
  color: var(--text);
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.hero__tagline {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin: 0 0 2rem;
  max-width: 28ch;
}

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

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 8px;
  transition: background 0.2s, color 0.2s, transform 0.15s;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn--primary {
  background: var(--accent);
  color: #fff;
  border: none;
}
.btn--primary:hover { background: var(--accent-hover); color: #fff; }
.btn--secondary {
  background: transparent;
  color: var(--text);
  border: 2px solid var(--border);
}
.btn--secondary:hover { border-color: var(--accent); color: var(--accent); }

.hero__avatar {
  flex-shrink: 0;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
}

.hero__initials {
  font-family: 'Outfit', sans-serif;
  font-size: 2.5rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}

/* Sections common */
section { padding: 4rem 1.5rem; }
.section-title {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  margin: 0 0 2.5rem;
  color: var(--text);
  text-align: center;
}

/* About */
.about { background: var(--bg-elevated); }
.about__inner { max-width: 800px; margin: 0 auto; }
.about__content {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  flex-wrap: wrap;
}
.about__avatar {
  flex-shrink: 0;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
}
.about__initials {
  font-family: 'Outfit', sans-serif;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-muted);
}
.about__text { flex: 1; min-width: 280px; }
.about__p { margin: 0 0 1rem; color: var(--text); }
.about__p:last-child { margin-bottom: 0; }

/* Projects */
.projects__inner { max-width: 1000px; margin: 0 auto; }
.projects__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.75rem;
}

.card {
  background: var(--card-bg);
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.card__media {
  aspect-ratio: 16/10;
  background: var(--bg);
  position: relative;
  overflow: hidden;
}
.card__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}
.card--align-left .card__img {
  object-position: left center;
}
.card__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Outfit', sans-serif;
  font-size: 3rem;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--border);
}

.card__body { padding: 1.25rem; flex: 1; display: flex; flex-direction: column; }
.card__title { margin: 0 0 0.5rem; font-size: 1.25rem; }
.card__desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin: 0 0 0.75rem;
  flex: 1;
}
.card__techs {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin: 0 0 1rem;
  opacity: 0.9;
}
.card__link {
  font-weight: 600;
  font-size: 0.95rem;
  margin-top: auto;
}
.card__link:hover { text-decoration: none; }

.card__links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: auto;
}

/* Skills */
.skills { background: var(--bg-elevated); }
.skills__inner { max-width: 800px; margin: 0 auto; }
.skills__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}
.skill {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text);
  transition: border-color 0.2s, color 0.2s;
}
.skill:hover { border-color: var(--accent); color: var(--accent); }

/* Contact */
.contact__inner { max-width: 560px; margin: 0 auto; text-align: center; }
.contact__intro {
  color: var(--text-muted);
  margin: 0 0 1.5rem;
}
.contact__links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}
.contact__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-weight: 500;
  transition: border-color 0.2s, background 0.2s;
}
.contact__link:hover { border-color: var(--accent); background: var(--bg); text-decoration: none; color: var(--accent); }
.contact__icon {
  font-size: 1.1rem;
  opacity: 0.9;
}

/* Footer */
.footer {
  padding: 1.5rem;
  text-align: center;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.9rem;
}
.footer__copy { margin: 0; }

/* Mobile */
@media (max-width: 768px) {
  .hero {
    flex-direction: column-reverse;
    padding: 3rem 1.5rem 4rem;
    text-align: center;
  }
  .hero__tagline { margin-left: auto; margin-right: auto; }
  .hero__cta { justify-content: center; }
  .hero__avatar { width: 120px; height: 120px; }
  .hero__initials { font-size: 2rem; }

  .about__content { flex-direction: column; align-items: center; text-align: center; }

  .nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    background: var(--bg-elevated);
    border-left: 1px solid var(--border);
    flex-direction: column;
    align-items: stretch;
    padding: 4rem 1.5rem 1.5rem;
    gap: 1rem;
    transform: translateX(100%);
    transition: transform 0.25s ease;
    box-shadow: -4px 0 20px rgba(0,0,0,0.1);
  }
  .nav--open { transform: translateX(0); }
  .menu-btn { display: flex; }
  .nav .header__lang { justify-content: flex-start; }
  .nav .theme-toggle { align-self: flex-start; }
}

@media (max-width: 480px) {
  .projects__grid { grid-template-columns: 1fr; }
  section { padding: 3rem 1rem; }
}