:root {
  --bg: #000000;
  --surface: rgba(12, 12, 12, 0.82);
  --surface-2: rgba(255, 255, 255, 0.035);
  --text: #f5f5f5;
  --muted: #a3a3a3;
  --muted-2: #737373;
  --line: rgba(255, 255, 255, 0.11);
  --line-2: rgba(255, 255, 255, 0.20);
  --accent: #16a34a;
  --radius: 22px;
  --max: 1180px;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.7);
  --shadow-soft: 0 18px 44px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: #000;
}

body {
  margin: 0;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 20% 0%, rgba(255, 255, 255, 0.065), transparent 31rem),
    radial-gradient(circle at 88% 12%, rgba(22, 163, 74, 0.07), transparent 24rem),
    #000;
  min-height: 100vh;
  overflow-x: hidden;
}

.grain {
  position: fixed;
  inset: 0;
  opacity: .12;
  pointer-events: none;
  z-index: -1;
  background-image: radial-gradient(rgba(255,255,255,.24) .6px, transparent .6px);
  background-size: 5px 5px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 90%);
}

.cursor-glow {
  position: fixed;
  width: 420px;
  height: 420px;
  border-radius: 999px;
  pointer-events: none;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.07), transparent 65%);
  transform: translate(-50%, -50%);
  opacity: 0;
  z-index: -1;
  transition: opacity .3s ease;
}

a {
  color: inherit;
  text-decoration: none;
}

.navbar {
  width: min(var(--max), calc(100% - 32px));
  margin: 18px auto 0;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.54);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  box-shadow: var(--shadow-soft);
  display: flex;
  align-items: center;
  gap: 18px;
  position: sticky;
  top: 16px;
  z-index: 50;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 250px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: 15px;
  display: grid;
  place-items: center;
  background: #f5f5f5;
  color: #000;
  font-weight: 950;
  letter-spacing: -0.04em;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  color: var(--text);
  font-size: .98rem;
}

.brand small {
  color: var(--muted);
  font-size: .75rem;
  font-weight: 700;
}

.nav {
  margin-left: auto;
  display: flex;
  gap: 6px;
  align-items: center;
}

.nav a {
  color: var(--muted);
  font-weight: 800;
  padding: 10px 13px;
  border-radius: 999px;
  transition: .2s ease;
}

.nav a:hover {
  color: var(--text);
  background: rgba(255,255,255,.08);
}

.menu-toggle {
  display: none;
  margin-left: auto;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.06);
  color: var(--text);
  font-size: 1.3rem;
}

main {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  min-height: 720px;
  padding: 78px 0 56px;
  display: grid;
  grid-template-columns: 1.18fr .82fr;
  align-items: center;
  gap: 44px;
}

.kicker {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  color: var(--muted);
  font-size: .78rem;
  font-weight: 900;
  letter-spacing: .16em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.kicker::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--text);
  opacity: .8;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 880px;
  color: var(--text);
  font-size: clamp(3rem, 6.4vw, 6.3rem);
  line-height: .91;
  letter-spacing: -.085em;
  margin-bottom: 24px;
}

h2 {
  color: var(--text);
  font-size: clamp(2rem, 4.2vw, 3.65rem);
  line-height: 1;
  letter-spacing: -.065em;
  margin-bottom: 18px;
}

h3 {
  color: var(--text);
  letter-spacing: -.035em;
}

.hero-content p,
.profile-card p,
.repo-description {
  color: var(--muted);
  line-height: 1.72;
}

.hero-content p {
  max-width: 720px;
  font-size: 1.12rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.btn {
  border-radius: 999px;
  padding: 14px 20px;
  font-weight: 900;
  border: 1px solid var(--line-2);
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}

.btn:hover {
  transform: translateY(-3px);
}

.btn-primary {
  color: #000;
  background: #f5f5f5;
  border-color: #f5f5f5;
}

.btn-secondary {
  color: var(--text);
  background: rgba(255,255,255,.08);
}

.btn-ghost {
  color: var(--muted);
  background: transparent;
}

.btn-secondary:hover,
.btn-ghost:hover {
  border-color: rgba(255,255,255,.34);
  background: rgba(255,255,255,.11);
  color: var(--text);
}

.stack-line {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.stack-line span {
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  background: rgba(255,255,255,.035);
  animation: floatChip 5s ease-in-out infinite;
}

.stack-line span:nth-child(2n) {
  animation-delay: .35s;
}

.stack-line span:nth-child(3n) {
  animation-delay: .7s;
}

.profile-card,
.info-card,
.project-toolbar,
.metrics article,
.accordion-item,
.contact-section {
  border: 1px solid var(--line);
  background: var(--surface);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  box-shadow: var(--shadow-soft);
}

.profile-card {
  border-radius: 32px;
  padding: 28px;
  position: relative;
  overflow: hidden;
}

.profile-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.55), transparent);
}

.profile-head {
  display: flex;
  align-items: center;
  gap: 18px;
}

.profile-head img {
  width: 92px;
  height: 92px;
  border-radius: 24px;
  object-fit: cover;
  background: #111;
  border: 1px solid var(--line-2);
}

.profile-head h2 {
  font-size: 1.55rem;
  margin-bottom: 8px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 26px;
}

.stats div {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.045);
  border-radius: 18px;
  padding: 16px;
}

.stats strong {
  display: block;
  font-size: 1.5rem;
  color: var(--text);
}

.stats span {
  color: var(--muted);
  font-weight: 800;
  font-size: .78rem;
}

.section {
  padding: 72px 0;
}

.section-title {
  max-width: 860px;
  margin-bottom: 30px;
}

.cards-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.info-card {
  border-radius: var(--radius);
  padding: 26px;
  min-height: 150px;
  transition: transform .24s ease, border-color .24s ease, background .24s ease;
}

.info-card:hover,
.accordion-item:hover,
.repo-card:hover {
  transform: translateY(-5px);
  border-color: rgba(255,255,255,.28);
  background: rgba(255,255,255,.06);
}

.number {
  display: inline-flex;
  color: #000;
  background: #f5f5f5;
  border-radius: 999px;
  padding: 8px 11px;
  font-weight: 950;
  margin-bottom: 20px;
}

.project-toolbar {
  border-radius: var(--radius);
  padding: 20px;
  display: grid;
  grid-template-columns: 1.4fr .6fr;
  gap: 14px;
  margin-bottom: 18px;
}

.project-toolbar label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: var(--muted);
  font-weight: 800;
}

input,
select {
  width: 100%;
  color: var(--text);
  background: rgba(255,255,255,.05);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px 15px;
  outline: none;
  font: inherit;
  transition: border-color .2s ease, background .2s ease;
}

input:focus,
select:focus {
  border-color: rgba(255,255,255,.42);
  background: rgba(255,255,255,.08);
}

select option {
  background: #090909;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 22px 0;
}

.metrics article {
  border-radius: var(--radius);
  padding: 22px;
}

.metrics span {
  color: var(--muted);
  font-weight: 800;
}

.metrics strong {
  display: block;
  margin-top: 8px;
  font-size: 2rem;
  letter-spacing: -.05em;
}

.project-menu {
  display: grid;
  gap: 14px;
}

.accordion-item {
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .24s ease, border-color .24s ease, background .24s ease;
}

.accordion-button {
  width: 100%;
  border: 0;
  color: var(--text);
  background: transparent;
  padding: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  cursor: pointer;
}

.accordion-button h3 {
  margin: 0;
  font-size: 1.28rem;
}

.accordion-button .count {
  color: #000;
  background: #f5f5f5;
  border-radius: 999px;
  padding: 8px 12px;
  font-weight: 950;
  white-space: nowrap;
}

.accordion-content {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .45s cubic-bezier(.2,.8,.2,1);
}

.accordion-item.open .accordion-content {
  grid-template-rows: 1fr;
}

.accordion-inner {
  overflow: hidden;
}

.repo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 15px;
  padding: 0 18px 18px;
}

.repo-card {
  border: 1px solid var(--line);
  background: rgba(255,255,255,.035);
  border-radius: 18px;
  padding: 18px;
  min-height: 230px;
  display: flex;
  flex-direction: column;
  transition: .24s ease;
}

.repo-top,
.repo-meta,
.repo-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.repo-language,
.repo-stars {
  color: var(--muted);
  border: 1px solid var(--line);
  background: rgba(255,255,255,.04);
  border-radius: 999px;
  padding: 7px 10px;
  font-size: .78rem;
  font-weight: 850;
}

.repo-card h3 {
  margin: 16px 0 10px;
  font-size: 1.08rem;
  word-break: break-word;
}

.repo-description {
  flex: 1;
  font-size: .92rem;
}

.repo-date {
  color: var(--muted-2);
  font-size: .82rem;
  font-weight: 800;
}

.repo-actions {
  margin-top: 16px;
  justify-content: flex-start;
  flex-wrap: wrap;
}

.repo-link,
.repo-demo {
  border-radius: 999px;
  padding: 9px 12px;
  font-size: .82rem;
  font-weight: 900;
  color: #000;
  background: #f5f5f5;
}

.repo-demo {
  color: var(--text);
  background: rgba(255,255,255,.09);
  border: 1px solid var(--line);
}

.hidden {
  display: none !important;
}

.empty-state {
  border: 1px dashed var(--line-2);
  border-radius: var(--radius);
  padding: 36px;
  color: var(--muted);
  text-align: center;
}

.contact-section {
  border-radius: 32px;
  padding: 34px;
  margin: 72px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 28px;
}

.contact-section h2 {
  max-width: 720px;
}

.whatsapp-float {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 45;
  color: #000;
  background: #f5f5f5;
  border: 1px solid var(--line-2);
  border-radius: 999px;
  padding: 14px 18px;
  font-weight: 950;
  box-shadow: var(--shadow-soft);
  transition: transform .2s ease;
}

.whatsapp-float:hover {
  transform: translateY(-4px);
}

.footer {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 48px;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: var(--muted);
  font-weight: 800;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity .75s ease, transform .75s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 {
  transition-delay: .12s;
}

.delay-2 {
  transition-delay: .24s;
}

@keyframes floatChip {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

@media (max-width: 980px) {
  .hero,
  .cards-3,
  .repo-grid,
  .metrics,
  .project-toolbar {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 56px;
  }

  .contact-section {
    display: block;
  }

  .contact-section .hero-actions {
    margin-top: 18px;
  }
}

@media (max-width: 760px) {
  .navbar {
    border-radius: 22px;
    flex-wrap: wrap;
  }

  .brand {
    min-width: auto;
  }

  .menu-toggle {
    display: block;
  }

  .nav {
    display: none;
    width: 100%;
    margin-left: 0;
    flex-direction: column;
    align-items: stretch;
  }

  .nav.open {
    display: flex;
  }

  .nav a {
    background: rgba(255,255,255,.05);
  }

  .profile-head {
    display: block;
  }

  .profile-head img {
    margin-bottom: 16px;
  }

  .stats {
    grid-template-columns: 1fr;
  }

  .accordion-button {
    align-items: center;
    gap: 16px;
  }

  .footer {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal,
  .stack-line span,
  .accordion-content,
  .repo-card,
  .btn,
  .info-card,
  .accordion-item {
    animation: none !important;
    transition: none !important;
  }
}