/* ============================================================
   0xbielzao — offensive security portfolio
   Tokens conforme Design Direction (site/CLAUDE.md)
   ============================================================ */

:root[data-theme="dark"] {
  --bg:        #0A0E14;
  --surface:   #10151D;
  --border:    rgba(255,59,92,0.15);
  --border-hi: rgba(255,59,92,0.40);
  --accent:    #FF3B5C;
  --residual:  #00FFA3;
  --text:      #E8EDF2;
  --muted:     #7C8B9A;
  --term-bg:   #070A0F;
  --grid:      transparent;
  --grid-size: 0;
  --glow:      0 0 24px rgba(255,59,92,0.18);
  --radar-fill: transparent;
  --btn-fg:    #0A0E14;
  --shadow:    none;
}

:root[data-theme="light"] {
  --bg:        #F4F5F0;
  --surface:   #FFFFFF;
  --border:    #0B0E12;
  --border-hi: #B01E2E;
  --accent:    #B01E2E;
  --residual:  #0F9D63;
  --text:      #0B0E12;
  --muted:     #5B6570;
  --term-bg:   #0B0E12;
  --grid:      #E0E2DC;
  --grid-size: 28px;
  --glow:      none;
  --radar-fill: #0B0E12;
  --btn-fg:    #FFFFFF;
  --shadow:    3px 3px 0 #0B0E12;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 88px; }

body {
  margin: 0;
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
  color: var(--text);
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { font-family: "Space Grotesk", system-ui, sans-serif; font-weight: 700; line-height: 1.1; margin: 0; }

a { color: inherit; }

::selection { background: var(--accent); color: var(--btn-fg); }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 99;
  background: var(--accent); color: var(--btn-fg);
  padding: .6rem 1rem; font-family: "JetBrains Mono", monospace; font-size: .8rem;
}
.skip:focus { left: 0; }

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

/* ───────────────── topbar ───────────────── */

.topbar {
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; gap: 1.5rem;
  padding: .85rem clamp(1rem, 4vw, 3rem);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex; align-items: baseline; gap: .4rem;
  font-family: "JetBrains Mono", monospace; font-weight: 700;
  text-decoration: none; letter-spacing: -.02em;
}
.brand-sigil { color: var(--accent); }

.nav {
  display: flex; gap: 1.35rem; margin-left: auto;
  font-family: "JetBrains Mono", monospace; font-size: .82rem;
}
.nav a {
  position: relative; text-decoration: none; color: var(--muted);
  padding-left: .85rem; transition: color .15s;
}
.nav a:hover { color: var(--text); }
.nav a::before {
  content: "●";
  position: absolute; left: 0; top: 0;
  font-size: .55em; line-height: 2.6;
  color: var(--residual);
  opacity: 0;
}
.nav a.is-active { color: var(--text); }
.nav a.is-active::before { opacity: 1; animation: blink 1.4s steps(1) infinite; }

/* Blog: link externo (subdominio), destacado no accent + seta de "sai daqui" */
.nav a.nav-blog { color: var(--accent); }
.nav a.nav-blog::before { content: none; }
.nav a.nav-blog::after { content: "↗"; font-size: .85em; margin-left: .15rem; opacity: .7; }
.nav a.nav-blog:hover { color: var(--accent); opacity: .8; }

@keyframes blink { 0%,60% { opacity: 1 } 61%,100% { opacity: .15 } }

.switches { display: flex; gap: .5rem; align-items: center; }

.switch {
  display: inline-flex; align-items: center; gap: .4rem;
  font-family: "JetBrains Mono", monospace; font-size: .75rem;
  background: transparent; color: var(--muted);
  border: 1px solid var(--border); border-radius: 2px;
  padding: .38rem .6rem; cursor: pointer;
  transition: border-color .15s, color .15s;
}
.switch:hover { border-color: var(--border-hi); color: var(--text); }
.switch-glyph { color: var(--accent); }
.switch-lang { opacity: .45; }
.switch-lang.is-on { opacity: 1; color: var(--text); }
.switch-sep { opacity: .3; }
.switch-menu { display: none; font-size: 1rem; line-height: 1; padding: .3rem .55rem; }

/* ───────────────── layout ───────────────── */

main { max-width: 1120px; margin: 0 auto; padding: 0 clamp(1rem, 4vw, 3rem); }

.section { padding: clamp(4rem, 9vw, 7rem) 0; border-top: 1px solid var(--border); }

.section-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap; margin-bottom: 2.25rem;
}
.section-head h2 { font-size: clamp(1.7rem, 3.6vw, 2.4rem); letter-spacing: -.02em; }
.section-cmd { font-family: "JetBrains Mono", monospace; font-size: .78rem; color: var(--muted); }

.section-lead { max-width: 68ch; color: var(--muted); margin: 0 0 2.25rem; }

.sub {
  font-family: "JetBrains Mono", monospace; font-size: .8rem; font-weight: 500;
  color: var(--accent); margin-bottom: 1rem;
}

/* ───────────────── hero ───────────────── */

.hero { padding: clamp(3rem, 7vw, 5.5rem) 0 clamp(4rem, 8vw, 6rem); }

.hero-grid {
  display: grid; grid-template-columns: minmax(0,1.35fr) minmax(0,.85fr);
  gap: clamp(2rem, 5vw, 4rem); align-items: start;
}

.term {
  background: var(--term-bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.term-bar {
  display: flex; align-items: center; gap: .4rem;
  padding: .5rem .8rem;
  border-bottom: 1px solid var(--border);
}
.term-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--muted); opacity: .45; }
.term-dot:first-child { background: var(--accent); opacity: .8; }
.term-title {
  margin-left: .6rem; font-family: "JetBrains Mono", monospace;
  font-size: .7rem; color: var(--muted);
}
.term-body { margin: 0; padding: 1.1rem 1.1rem 1.3rem; overflow-x: auto; }
.term-body code {
  font-family: "JetBrains Mono", monospace; font-size: clamp(.72rem, 3vw, 1.15rem);
  line-height: 1.9; color: #E8EDF2;
}
.line { display: block; }
.prompt { color: var(--accent); font-weight: 700; }
.cmd { color: #E8EDF2; }
.arrow { color: var(--residual); }
.out { color: var(--residual); transition: opacity .45s ease; }
.term.is-typing .out { opacity: 0; }

.cursor, .cursor-static {
  display: inline-block; width: .6em; height: 1.05em;
  background: var(--residual); vertical-align: -.16em; margin-left: .18em;
  animation: caret 1.05s steps(1) infinite;
}
@keyframes caret { 0%,50% { opacity: 1 } 51%,100% { opacity: 0 } }

.hero-title {
  margin: 2rem 0 0;
  font-size: clamp(2.2rem, 5.5vw, 3.8rem);
  letter-spacing: -.04em; line-height: 1.03;
}
/* && e operador de shell, nao enfase decorativa: cor de sintaxe, como o $ */
.hero-title .op { color: var(--accent); }

.hero-lead {
  margin: 1.15rem 0 0; max-width: 48ch;
  font-size: clamp(1rem, 2.2vw, 1.12rem); color: var(--muted);
}

.stats {
  list-style: none; display: flex; flex-wrap: wrap; gap: 2rem;
  padding: 0; margin: 2.25rem 0 0;
  font-family: "JetBrains Mono", monospace;
}
.stats li { display: flex; flex-direction: column; gap: .15rem; }
.stat-n { color: var(--accent); font-size: 1.35rem; font-weight: 700; letter-spacing: -.04em; }
.stat-l { font-size: .74rem; color: var(--muted); }

.cta-row { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2.25rem; }

.btn {
  font-family: "JetBrains Mono", monospace; font-size: .82rem;
  text-decoration: none; padding: .75rem 1.3rem; border-radius: 2px;
  border: 1px solid transparent; transition: transform .12s, background .15s, border-color .15s;
}
.btn-primary { background: var(--accent); color: var(--btn-fg); font-weight: 700; box-shadow: var(--glow); }
.btn-ghost { border-color: var(--border-hi); color: var(--text); }
.btn-ghost:hover { background: color-mix(in srgb, var(--accent) 10%, transparent); }
.btn:hover { animation: glitch .3s steps(2) 1; }
@keyframes glitch {
  0%   { transform: translate(0,0) }
  25%  { transform: translate(-1.5px,1px) }
  50%  { transform: translate(1.5px,-1px) }
  75%  { transform: translate(-1px,0) }
  100% { transform: translate(0,0) }
}

/* photo + radar sweep */
.hero-photo { position: relative; margin: 0; aspect-ratio: 1; }
.radar { position: absolute; inset: 0; overflow: hidden; border-radius: 50%; }
.radar::before {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  border: 1px solid var(--border-hi);
  background:
    repeating-linear-gradient(
      to bottom,
      color-mix(in srgb, var(--accent) 9%, transparent) 0 1px,
      transparent 1px 4px
    ),
    radial-gradient(circle at center, color-mix(in srgb, var(--accent) 12%, transparent) 0%, transparent 70%),
    var(--radar-fill);
}
.radar::after {
  content: ""; position: absolute; inset: 14%; border-radius: 50%;
  border: 1px solid var(--border);
}
.sweep {
  position: absolute; inset: 0; border-radius: 50%;
  background: conic-gradient(from 0deg,
    color-mix(in srgb, var(--accent) 45%, transparent) 0deg,
    transparent 55deg, transparent 360deg);
  animation: sweep 4s linear infinite;
}
@keyframes sweep { to { transform: rotate(360deg) } }

.hero-photo img {
  position: absolute; inset: 9%;
  width: 82%; height: 82%; object-fit: cover; border-radius: 50%;
  image-rendering: pixelated;
}
.hero-photo.no-photo::after {
  content: "[ no img ]";
  position: absolute; inset: 0; display: grid; place-items: center;
  font-family: "JetBrains Mono", monospace; font-size: .78rem; color: var(--muted);
}

.photo-caption {
  position: absolute; left: 50%; bottom: -1.9rem; transform: translateX(-50%);
  display: flex; align-items: center; gap: .45rem; white-space: nowrap;
  font-family: "JetBrains Mono", monospace; font-size: .72rem; color: var(--muted);
}
.pulse {
  width: 7px; height: 7px; border-radius: 50%; background: var(--residual);
  animation: blink 1.4s steps(1) infinite;
}

/* ───────────────── about ───────────────── */

.prose { max-width: 66ch; }
.prose p { margin: 0 0 1.15rem; }
.prose p:first-child { font-size: 1.12rem; color: var(--text); }

.scanbox {
  margin-top: 2.5rem; background: var(--term-bg);
  border: 1px solid var(--border); border-radius: 3px;
  box-shadow: var(--shadow); overflow-x: auto;
}
.scan { margin: 0; padding: 1.1rem 1.2rem; }
.scan code {
  font-family: "JetBrains Mono", monospace; font-size: .8rem; line-height: 1.85;
  color: var(--residual); white-space: pre;
}
.s-prompt { color: var(--accent); font-weight: 700; }
.s-ok { color: var(--residual); }
.s-dim { color: #7C8B9A; }
.cursor-static { width: .55em; height: .95em; }

/* ───────────────── arsenal ───────────────── */

.arsenal { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 1rem; }

.kit {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 3px; padding: 1.35rem 1.4rem 1.5rem; box-shadow: var(--shadow);
}
.kit h3 { font-size: 1.02rem; letter-spacing: -.01em; margin-bottom: 1rem; }
.chips { list-style: none; display: flex; flex-wrap: wrap; gap: .4rem; padding: 0; margin: 0; }
.chips li {
  font-family: "JetBrains Mono", monospace; font-size: .74rem;
  color: var(--muted); border: 1px solid var(--border);
  border-radius: 2px; padding: .25rem .55rem;
}

/* ───────────────── engagements ───────────────── */

.cases { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 1rem; }

.case {
  display: flex; flex-direction: column;
  background: var(--surface); border: 1px solid var(--border);
  border-left: 2px solid var(--accent);
  border-radius: 3px; padding: 1.5rem; box-shadow: var(--shadow);
}
.case-org {
  font-family: "JetBrains Mono", monospace; font-size: .7rem;
  color: var(--accent); margin-bottom: .7rem;
}
.case h3 { font-size: 1.08rem; margin-bottom: .7rem; }
.case p { margin: 0 0 1.2rem; font-size: .93rem; color: var(--muted); }
.case-out {
  font-family: "JetBrains Mono", monospace; font-size: .78rem; line-height: 1.6;
  color: var(--text); margin: 0 0 1.2rem;
  padding-left: .85rem; border-left: 2px solid var(--residual);
}
.case-tags { list-style: none; display: flex; flex-wrap: wrap; gap: .4rem; padding: 0; margin: auto 0 0; }
.case-tags li {
  font-family: "JetBrains Mono", monospace; font-size: .68rem;
  color: var(--residual); border: 1px solid color-mix(in srgb, var(--residual) 30%, transparent);
  border-radius: 2px; padding: .18rem .45rem;
}

/* ───────────────── methodology ───────────────── */

.phases { list-style: none; padding: 0; margin: 0; counter-reset: none; }
.phases li {
  display: grid; grid-template-columns: 4.5rem 1fr; gap: 0 1.5rem;
  padding: 1.5rem 0; border-top: 1px solid var(--border);
}
/* o numero ocupa as duas linhas; titulo e texto ficam sempre na coluna 2 */
.phase-n { grid-row: 1 / span 2; }
.phases h3, .phases p { grid-column: 2; }
.phases li:last-child { border-bottom: 1px solid var(--border); }
.phase-n {
  font-family: "JetBrains Mono", monospace; font-size: 1.25rem; font-weight: 700;
  color: var(--accent);
}
.phases h3 { font-size: 1.12rem; margin-bottom: .45rem; }
.phases p { margin: 0; max-width: 72ch; color: var(--muted); font-size: .95rem; }

/* ───────────────── write-ups ───────────────── */

.papers { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: .75rem; }

.paper {
  display: flex; flex-direction: column; gap: .7rem;
  text-decoration: none;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 3px; padding: 1.15rem 1.25rem;
  transition: border-color .15s;
}
.paper:hover { border-color: var(--border-hi); }
.paper-top {
  display: flex; align-items: center; justify-content: space-between; gap: .75rem;
  font-family: "JetBrains Mono", monospace; font-size: .7rem; color: var(--muted);
}
.paper-serie { color: var(--accent); }
.paper h4 {
  font-family: "Space Grotesk", sans-serif; font-weight: 500; font-size: .98rem;
  line-height: 1.3; margin: 0;
}
.paper-tags { display: flex; gap: .4rem; flex-wrap: wrap; margin-top: auto; }
.paper-tags span {
  font-family: "JetBrains Mono", monospace; font-size: .66rem; color: var(--muted);
  border: 1px solid var(--border); border-radius: 2px; padding: .15rem .4rem;
}

.ctf {
  display: flex; align-items: center; gap: .75rem; flex-wrap: wrap;
  margin-top: 1.5rem; padding: .9rem 1.1rem; text-decoration: none;
  border: 1px dashed var(--border-hi); border-radius: 3px;
  font-family: "JetBrains Mono", monospace; font-size: .8rem;
}
.ctf-k { color: var(--text); }
.ctf-v { color: var(--muted); }
.ctf:hover { background: color-mix(in srgb, var(--accent) 7%, transparent); }

/* ───────────────── contact ───────────────── */

.avail {
  display: flex; flex-wrap: wrap; gap: 2.5rem;
  margin: 0 0 1.75rem; padding: 0 0 1.75rem;
  border-bottom: 1px solid var(--border);
}
.avail dt {
  font-family: "JetBrains Mono", monospace; font-size: .7rem;
  color: var(--accent); margin-bottom: .2rem;
}
.avail dd { font-family: "JetBrains Mono", monospace; font-size: .85rem; margin: 0; }

.links { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: .75rem; }
.link {
  display: flex; flex-direction: column; align-items: flex-start; gap: .3rem;
  text-decoration: none;
  border: 1px solid var(--border); border-radius: 3px; padding: .9rem 1.2rem;
  background: var(--surface); transition: border-color .15s;
}
.link:hover { border-color: var(--border-hi); }
.link-k {
  font-family: "JetBrains Mono", monospace; font-size: .7rem; color: var(--accent);
}
.link-v { font-family: "JetBrains Mono", monospace; font-size: .82rem; overflow-wrap: anywhere; }

/* ───────────────── footer ───────────────── */

.foot {
  max-width: 1120px; margin: 0 auto;
  display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  padding: 2rem clamp(1rem, 4vw, 3rem) 3rem;
  border-top: 1px solid var(--border);
  font-family: "JetBrains Mono", monospace; font-size: .72rem; color: var(--muted);
}

/* ───────────────── responsive ───────────────── */

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr); }
  .hero-photo { width: min(300px, 62vw); margin: 0 auto 1rem; order: -1; }
  .switch-menu { display: inline-flex; }
  .nav {
    display: none; position: absolute; top: 100%; right: clamp(1rem, 4vw, 3rem);
    flex-direction: column; gap: .9rem; padding: 1.1rem 1.4rem;
    background: var(--surface); border: 1px solid var(--border); border-radius: 3px;
  }
  .nav.is-open { display: flex; }
}

@media (max-width: 560px) {
  .phases li { grid-template-columns: 1fr; gap: .4rem; }
  .stats { gap: 1.25rem; }
  .link-k { min-width: 4.5rem; }
}

@media (max-width: 360px) {
  .switch-label { display: none; }
  .topbar { gap: .75rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .cursor, .cursor-static { opacity: 1; }
}