/* ============================================================
   Felipe Gabriel — Portfólio "Data Ops / Control Room"
   Design system dark, vanilla (sem Bootstrap/jQuery)
   ============================================================ */

/* ---- 1. TOKENS ---- */
:root {
  /* Superfícies */
  --bg: #0a0e14;
  --bg-grid: rgba(56, 189, 248, 0.045);
  --panel: #111823;
  --panel-2: #0e141d;
  --border: #1e2a3a;
  --border-strong: #2b3b50;

  /* Texto */
  --text: #e8eef5;
  --muted: #8296ac;
  --faint: #55677d;

  /* Cores de série / sinal */
  --accent: #38bdf8;   /* cyan — série primária, links */
  --accent-ink: #0a2231;
  --signal: #fbbf24;   /* âmbar — KPIs, luz de sinal */
  --series-3: #a78bfa; /* violeta — 3ª série */
  --ok: #34d399;
  --warn: #fbbf24;
  --danger: #f87171;

  /* Tipografia */
  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;

  /* Escala */
  --step--1: clamp(0.78rem, 0.75rem + 0.15vw, 0.86rem);
  --step-0: clamp(0.95rem, 0.9rem + 0.25vw, 1.05rem);
  --step-1: clamp(1.15rem, 1.05rem + 0.5vw, 1.4rem);
  --step-2: clamp(1.5rem, 1.3rem + 1vw, 2.1rem);
  --step-3: clamp(2.2rem, 1.7rem + 2.4vw, 3.6rem);
  --step-4: clamp(3rem, 2rem + 4.5vw, 5.5rem);

  /* Espaço / raio / sombra */
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 12px 40px -12px rgba(0, 0, 0, 0.6);
  --glow-accent: 0 0 0 1px rgba(56, 189, 248, 0.25), 0 8px 30px -10px rgba(56, 189, 248, 0.35);
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);

  --nav-w: 17rem;
  --maxw: 1180px;
}

/* ---- 2. RESET / BASE ---- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.65;
  color: var(--text);
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--bg-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--bg-grid) 1px, transparent 1px),
    radial-gradient(120% 90% at 85% -10%, rgba(56, 189, 248, 0.08), transparent 55%),
    radial-gradient(100% 80% at 0% 110%, rgba(167, 139, 250, 0.07), transparent 50%);
  background-size: 42px 42px, 42px 42px, 100% 100%, 100% 100%;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
}

p { margin: 0 0 1rem; }

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: #7dd3fc; }

img { max-width: 100%; display: block; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

::selection { background: rgba(56, 189, 248, 0.3); color: #fff; }

/* Utilities de dados */
.mono { font-family: var(--font-mono); }

.field-label {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: 0.08em;
  color: var(--accent);
  text-transform: lowercase;
  display: inline-flex;
  align-items: center;
  gap: 0.5ch;
}
.field-label::before { content: "//"; color: var(--faint); }

/* ---- 3. LAYOUT SHELL ---- */
.layout {
  display: grid;
  grid-template-columns: var(--nav-w) minmax(0, 1fr);
  min-height: 100vh;
}

.content {
  max-width: var(--maxw);
  width: 100%;
  padding: 0 clamp(1.25rem, 4vw, 4rem);
  margin-inline: auto;
}

.section {
  padding: clamp(3.5rem, 8vh, 6.5rem) 0;
  border-top: 1px solid var(--border);
  position: relative;
}
.section:first-of-type { border-top: 0; }

.section-head {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 2.5rem;
}
.section-head h2 {
  font-size: var(--step-2);
  margin: 0;
}

/* ---- 4. SIDEBAR NAV ---- */
.sidenav {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  background: linear-gradient(180deg, var(--panel) 0%, var(--panel-2) 100%);
  border-right: 1px solid var(--border);
  padding: 2rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  z-index: 50;
  /* Insurance: em alturas fora do comum o rail rola em vez de cortar itens.
     A densidade responsiva abaixo faz isso quase nunca disparar; quando dispara,
     a barra é uma hairline no tema — nunca a barra chunky padrão do SO. */
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
}
.sidenav::-webkit-scrollbar { width: 6px; }
.sidenav::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 999px; }
.sidenav::-webkit-scrollbar-track { background: transparent; }

/* Densidade responsiva por altura: o rail compacta em telas baixas
   (notebooks, mobile paisagem) para que os 9 itens caibam sem rolar. */
@media (max-height: 800px) {
  .sidenav { padding: 1.4rem 1.5rem; gap: 1.1rem; }
  .brand img { width: 48px; height: 48px; }
  .nav-list a { padding: 0.42rem 0.7rem; font-size: 0.88rem; }
  .nav-social a { width: 34px; height: 34px; }
}
@media (max-height: 680px) {
  .sidenav { padding: 1rem 1.5rem; gap: 0.7rem; }
  .brand img { width: 40px; height: 40px; }
  .brand .brand-role { display: none; }
  .nav-list { gap: 0.05rem; }
  .nav-list a { padding: 0.3rem 0.7rem; font-size: 0.86rem; line-height: 1.2; }
  .nav-foot { gap: 0.6rem; }
}
@media (max-height: 620px) {
  .sidenav { padding: 0.7rem 1.25rem; gap: 0.5rem; }
  .brand img { width: 34px; height: 34px; }
  .nav-list a { padding: 0.24rem 0.6rem; }
  .nav-social a { width: 30px; height: 30px; font-size: 0.85rem; }
  .lang-toggle { padding: 2px; }
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}
.brand img {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  box-shadow: var(--glow-accent);
  object-fit: cover;
}
.brand .brand-name { font-family: var(--font-display); font-weight: 600; font-size: 1.05rem; }
.brand .brand-role { font-family: var(--font-mono); font-size: 0.72rem; color: var(--muted); }
.brand .status-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--ok); box-shadow: 0 0 8px var(--ok);
  display: inline-block; margin-right: 0.4ch;
  animation: pulse 2s infinite;
}
@keyframes pulse { 50% { opacity: 0.35; } }

.nav-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.15rem; }
.nav-list a {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.55rem 0.7rem;
  border-radius: var(--radius-sm);
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 500;
  border-left: 2px solid transparent;
  transition: var(--transition);
}
.nav-list a .idx { font-family: var(--font-mono); font-size: 0.7rem; color: var(--faint); }
.nav-list a:hover { color: var(--text); background: rgba(56, 189, 248, 0.06); }
.nav-list a.active {
  color: var(--text);
  background: rgba(56, 189, 248, 0.09);
  border-left-color: var(--accent);
}
.nav-list a.active .idx { color: var(--accent); }

.nav-foot { margin-top: auto; display: flex; flex-direction: column; gap: 1rem; }
.lang-toggle {
  display: inline-flex; gap: 2px; align-self: start;
  border: 1px solid var(--border-strong); border-radius: 999px; padding: 3px;
  font-family: var(--font-mono); font-size: 0.72rem;
}
.lang-toggle button {
  background: none; border: 0; color: var(--muted); cursor: pointer;
  padding: 0.25rem 0.7rem; border-radius: 999px; transition: var(--transition);
}
.lang-toggle button[aria-pressed="true"] { background: var(--accent); color: var(--accent-ink); font-weight: 600; }

.nav-social { display: flex; gap: 0.75rem; }
.nav-social a {
  width: 38px; height: 38px; display: grid; place-items: center;
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
  color: var(--muted); font-size: 1rem; transition: var(--transition);
}
.nav-social a:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-2px); }

/* Mobile nav toggler */
.nav-toggler {
  display: none;
  place-items: center;
  position: fixed; top: 1rem; right: 1rem; z-index: 100;
  width: 46px; height: 46px; border-radius: var(--radius-sm);
  background: var(--panel); border: 1px solid var(--border-strong);
  color: var(--text); font-size: 1.2rem; cursor: pointer;
  padding: 0; line-height: 1;
}

/* ---- 5. HERO / SELF-DASHBOARD (signature) ---- */
.hero { padding-top: clamp(3rem, 8vh, 5.5rem); }

.hero-top {
  display: flex; align-items: baseline; justify-content: space-between;
  flex-wrap: wrap; gap: 0.5rem 1.5rem; margin-bottom: 1.5rem;
}
.hero-updated {
  font-family: var(--font-mono); font-size: 0.75rem; color: var(--muted);
  display: inline-flex; align-items: center; gap: 0.5ch;
}
.hero-updated b { color: var(--text); font-weight: 500; }

.hero h1 {
  font-size: var(--step-4);
  margin: 0 0 0.3rem;
}
.hero h1 .accent { color: var(--accent); }
.hero .tagline {
  font-family: var(--font-mono);
  font-size: clamp(0.85rem, 0.7rem + 0.6vw, 1.05rem);
  color: var(--signal);
  margin-bottom: 1.25rem;
}
.hero .lead {
  max-width: 62ch;
  color: var(--muted);
  font-size: var(--step-1);
  line-height: 1.6;
}

/* KPI dashboard grid */
.kpi-grid {
  margin-top: 2.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
}
.kpi {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem 1rem;
  overflow: hidden;
  transition: var(--transition);
}
.kpi:hover { border-color: var(--border-strong); transform: translateY(-3px); }
.kpi::after {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
}
.kpi .kpi-label {
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.06em;
  color: var(--muted); text-transform: uppercase; margin-bottom: 0.35rem;
}
.kpi .kpi-value {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(1.8rem, 1.3rem + 1.6vw, 2.6rem);
  line-height: 1; color: var(--text);
}
.kpi .kpi-value .suffix { color: var(--signal); font-size: 0.6em; }

.hero-cta { margin-top: 2.25rem; display: flex; flex-wrap: wrap; gap: 0.9rem; }

/* ---- 6. BUTTONS ---- */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-body); font-weight: 600; font-size: 0.92rem;
  padding: 0.7rem 1.25rem; border-radius: var(--radius-sm);
  border: 1px solid transparent; cursor: pointer;
  transition: var(--transition); text-decoration: none;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { color: var(--accent-ink); box-shadow: var(--glow-accent); transform: translateY(-2px); }
.btn-ghost { background: transparent; border-color: var(--border-strong); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

/* ---- 7. EXPERIENCE — pipeline ETL ---- */
.pipeline { position: relative; margin-left: 0.5rem; padding-left: 2rem; }
.pipeline::before {
  content: ""; position: absolute; left: 0; top: 0.4rem; bottom: 0.4rem;
  width: 2px; background: linear-gradient(180deg, var(--accent), var(--series-3), transparent);
}
.stage { position: relative; padding-bottom: 2.5rem; }
.stage:last-child { padding-bottom: 0; }
.stage::before {
  content: ""; position: absolute; left: calc(-2rem - 5px); top: 0.35rem;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--accent);
  box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.12);
}
.stage.current::before { background: var(--signal); border-color: var(--signal); box-shadow: 0 0 0 4px rgba(251, 191, 36, 0.18); }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem;
  transition: var(--transition);
}
.card:hover { border-color: var(--border-strong); box-shadow: var(--shadow); }

.stage .card-head {
  display: flex; justify-content: space-between; align-items: baseline;
  flex-wrap: wrap; gap: 0.25rem 1rem; margin-bottom: 0.4rem;
}
.stage h3 { font-size: var(--step-1); margin: 0; }
.stage .org { color: var(--accent); font-weight: 500; font-size: 0.95rem; }
.stage .period {
  font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted);
  white-space: nowrap;
}
.stage .current-badge {
  font-family: var(--font-mono); font-size: 0.65rem; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--signal);
  border: 1px solid rgba(251, 191, 36, 0.4); border-radius: 999px;
  padding: 0.1rem 0.55rem; margin-left: 0.5ch;
}
.stage p { color: var(--muted); margin: 0.5rem 0 0.9rem; }
.stage p strong { color: var(--text); }

/* Tags técnicas */
.tags { display: flex; flex-wrap: wrap; gap: 0.45rem; }
.tag {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.02em;
  color: var(--accent); background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.2); border-radius: 6px;
  padding: 0.22rem 0.55rem;
}
.tag.amber { color: var(--signal); background: rgba(251, 191, 36, 0.08); border-color: rgba(251, 191, 36, 0.22); }
.tag.violet { color: var(--series-3); background: rgba(167, 139, 250, 0.08); border-color: rgba(167, 139, 250, 0.22); }

/* ---- 8. MOTION PREFS ---- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ---- 9. RESPONSIVE ---- */
@media (max-width: 880px) {
  .layout { grid-template-columns: 1fr; }
  .nav-toggler { display: grid; }
  .sidenav {
    position: fixed; inset: 0 auto 0 0; width: min(80vw, 20rem);
    height: 100dvh; transform: translateX(-100%);
    transition: transform 0.3s ease; box-shadow: var(--shadow);
    /* off-canvas drawer: rolar aqui é comportamento esperado de menu mobile,
       usado só como rede de segurança em telas muito baixas (paisagem) */
    overflow-y: auto; overscroll-behavior: contain;
  }
  .sidenav.open { transform: translateX(0); }
  body.nav-open { overflow: hidden; }
}

/* ---- 10. GRID DE CARDS (projetos, certs, repos, blog) ---- */
.grid { display: grid; gap: 1.15rem; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }

/* ---- 11. EDUCATION ---- */
.edu-list { display: grid; gap: 1.15rem; }
.edu .card-head { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 0.25rem 1rem; }
.edu h3 { font-size: var(--step-1); margin: 0; }
.edu .org { color: var(--accent); font-weight: 500; font-size: 0.95rem; margin-bottom: 0.6rem; }
.edu p { color: var(--muted); margin: 0.4rem 0 0; }
.status {
  font-family: var(--font-mono); font-size: 0.66rem; text-transform: uppercase;
  letter-spacing: 0.07em; border-radius: 999px; padding: 0.12rem 0.6rem;
  border: 1px solid transparent; white-space: nowrap;
}
.status.done { color: var(--ok); border-color: rgba(52, 211, 153, 0.35); background: rgba(52, 211, 153, 0.08); }
.status.progress { color: var(--signal); border-color: rgba(251, 191, 36, 0.35); background: rgba(251, 191, 36, 0.08); }
.status.paused { color: var(--muted); border-color: var(--border-strong); }

/* ---- 12. SKILLS ---- */
.skill-block { margin-bottom: 2rem; }
.skill-block h3 { font-size: var(--step-0); color: var(--muted); font-family: var(--font-mono); font-weight: 500; letter-spacing: 0.04em; margin-bottom: 0.9rem; }
.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.chip {
  font-family: var(--font-mono); font-size: 0.8rem; color: var(--text);
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 7px; padding: 0.38rem 0.7rem; transition: var(--transition);
}
.chip:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

/* Proficiência — evidência primeiro, nível como tag (cor = faixa) */
.prof-list { display: grid; gap: 0.6rem; max-width: 680px; }
.prof-row {
  border: 1px solid var(--border); border-left: 2px solid var(--lvl, var(--border-strong));
  border-radius: var(--radius-sm); background: var(--panel);
  padding: 0.75rem 0.9rem; transition: var(--transition);
}
.prof-row:hover { border-color: var(--border-strong); border-left-color: var(--lvl, var(--accent)); }
.prof-head { display: flex; align-items: baseline; justify-content: space-between; gap: 0.75rem 1rem; flex-wrap: wrap; }
.prof-name { font-family: var(--font-display); font-weight: 600; font-size: 1rem; color: var(--text); }
.prof-level {
  font-family: var(--font-mono); font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.07em;
  color: var(--lvl, var(--muted)); border: 1px solid color-mix(in srgb, var(--lvl, var(--border-strong)) 45%, transparent);
  background: color-mix(in srgb, var(--lvl, var(--border-strong)) 12%, transparent);
  border-radius: 999px; padding: 0.12rem 0.6rem; white-space: nowrap;
}
.prof-ev { color: var(--muted); font-size: 0.85rem; line-height: 1.5; margin: 0.4rem 0 0; }
.lvl-expert   { --lvl: var(--accent); }
.lvl-adv      { --lvl: var(--ok); }
.lvl-mid      { --lvl: var(--signal); }
.lvl-evolving { --lvl: var(--series-3); }

.skill-note { color: var(--faint); font-size: 0.8rem; font-style: italic; margin: 0.9rem 0 0; max-width: 60ch; }

/* ---- 13. PROJECT / CERT / REPO / BLOG CARD ---- */
.item-card { display: flex; flex-direction: column; height: 100%; }
.item-card h4 { font-size: var(--step-1); margin: 0 0 0.5rem; display: flex; align-items: center; gap: 0.5rem; }
.item-card h4 a { color: var(--text); }
.item-card h4 a:hover { color: var(--accent); }
.item-card p { color: var(--muted); font-size: 0.92rem; margin: 0 0 1rem; }
.item-card .meta { margin-top: auto; display: flex; flex-wrap: wrap; gap: 0.6rem 1rem; align-items: center; font-family: var(--font-mono); font-size: 0.76rem; color: var(--muted); }
.item-card .meta .lang-dot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; margin-right: 0.4ch; vertical-align: middle; }
.cert-issuer { font-family: var(--font-mono); font-size: 0.72rem; color: var(--signal); margin-bottom: 0.4rem; text-transform: uppercase; letter-spacing: 0.05em; }

/* Estados assíncronos */
.state { color: var(--muted); font-family: var(--font-mono); font-size: 0.85rem; padding: 1rem 0; }
.skeleton { position: relative; overflow: hidden; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); min-height: 150px; }
.skeleton::after { content: ""; position: absolute; inset: 0; transform: translateX(-100%); background: linear-gradient(90deg, transparent, rgba(56,189,248,0.06), transparent); animation: shimmer 1.4s infinite; }
@keyframes shimmer { 100% { transform: translateX(100%); } }
.section-cta { margin-top: 1.5rem; }

/* ---- 14. CONTACT ---- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 2.5rem; }
.contact-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 1rem; }
.contact-list li { display: flex; align-items: center; gap: 0.9rem; }
.contact-list i { color: var(--accent); width: 20px; text-align: center; }
.contact-list .k { font-family: var(--font-mono); font-size: 0.72rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; display: block; }

.form-field { margin-bottom: 1.1rem; }
.form-field label { display: block; font-family: var(--font-mono); font-size: 0.76rem; color: var(--muted); margin-bottom: 0.4rem; letter-spacing: 0.03em; }
.form-field input, .form-field textarea {
  width: 100%; background: var(--panel-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text); font-family: var(--font-body);
  font-size: 0.95rem; padding: 0.7rem 0.9rem; transition: var(--transition);
}
.form-field input:focus, .form-field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(56,189,248,0.12); }
.form-consent { display: flex; align-items: flex-start; gap: 0.6rem; font-size: 0.85rem; color: var(--muted); margin-bottom: 1.1rem; }
.form-consent input { accent-color: var(--accent); margin-top: 0.2rem; }
.hp { position: absolute; left: -9999px; opacity: 0; }
.form-msg { margin-top: 1rem; font-size: 0.9rem; }
.form-msg .ok { color: var(--ok); }
.form-msg .err { color: var(--danger); }

/* ---- 15. FOOTER ---- */
.site-foot { border-top: 1px solid var(--border); padding: 2.5rem 0 3rem; color: var(--faint); font-family: var(--font-mono); font-size: 0.78rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem; }
.site-foot a { color: var(--muted); }

/* ---- 16. AOS-lite reveal (só quando há JS; sem JS, tudo visível) ---- */
.js [data-reveal] { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.js [data-reveal].in { opacity: 1; transform: none; }

/* ---- 17. RESPONSIVE extras ---- */
@media (max-width: 720px) {
  .contact-grid { grid-template-columns: 1fr; gap: 1.75rem; }
}