:root {
  /* Solarized Light palette */
  --bg: #FDF6E3;
  --bg2: #EEE8D5;
  --bg3: #E5DFCA;
  --surface: #F5EFD6;
  --border: #D6CDB8;
  --muted: #93A1A1;
  --body-txt: #657B83;
  --heading: #586E75;
  --accent: #268BD2;
  /* blue */
  --amber: #CB4B16;
  /* orange-red */
  --green: #859900;
  /* olive green */
  --dim: #EEE8D5;
  --mono: 'JetBrains Mono', monospace;
  --shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
}

body.dark {
  --bg: #0A0A0A;
  --bg2: #0d2b0d;
  --bg3: #050505;
  --surface: #0f0f0f;
  --border: #1F521F;
  --muted: #3a7a3a;
  --body-txt: #4a8a4a;
  --heading: #33FF00;
  --accent: #33FF00;
  --amber: #FFB000;
  --green: #33FF00;
  --dim: #0d2b0d;
  --shadow: none;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--body-txt);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  transition: background 0.3s, color 0.3s;
}

/* CRT scanlines only in dark mode */
body.dark::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  background: repeating-linear-gradient(to bottom,
      transparent,
      transparent 2px,
      rgba(0, 0, 0, 0.07) 2px,
      rgba(0, 0, 0, 0.07) 4px);
}

/* headings glow in dark mode only */
body.dark h1,
body.dark h2,
body.dark h3,
body.dark .glow {
  text-shadow: 0 0 8px rgba(51, 255, 0, 0.35);
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

/* ============================================================
       SCROLLBAR
    ============================================================ */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg2);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--muted);
}

/* ============================================================
       UTILS
    ============================================================ */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Blinking cursor */
@keyframes blink {

  0%,
  100% {
    opacity: 1
  }

  50% {
    opacity: 0
  }
}

.cursor {
  display: inline-block;
  width: 10px;
  height: 1em;
  background: var(--accent);
  vertical-align: text-bottom;
  margin-left: 2px;
  animation: blink 1.1s step-end infinite;
}

body.dark .cursor {
  box-shadow: 0 0 6px rgba(51, 255, 0, 0.7);
}

/* ============================================================
       THEME TOGGLE
    ============================================================ */
#theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  padding: 5px 12px;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: all 0.2s;
}

#theme-toggle:hover {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

/* ============================================================
       LOADER
    ============================================================ */
#loader {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 10000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  transition: opacity 0.5s;
}

#loader-text {
  font-size: 13px;
  color: var(--heading);
}

#loader-bar {
  width: 260px;
  height: 14px;
  border: 1px solid var(--border);
  overflow: hidden;
  background: var(--bg2);
}

#loader-fill {
  height: 100%;
  background: var(--accent);
  width: 0%;
  transition: width 0.05s linear;
}

#loader-pct {
  font-size: 12px;
  color: var(--muted);
}

/* ============================================================
       NAV
    ============================================================ */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(253, 246, 227, 0.94);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(6px);
  transition: background 0.3s, border-color 0.3s;
}

body.dark nav {
  background: rgba(10, 10, 10, 0.94);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 52px;
  gap: 16px;
}

.nav-logo {
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--heading);
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-logo .prompt {
  color: var(--muted);
  font-weight: 400;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  list-style: none;
}

.nav-links a {
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.nav-links a:hover {
  color: var(--accent);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--heading);
  transition: all 0.25s;
}

#mobile-nav {
  display: none;
  border-top: 1px solid var(--border);
  padding: 16px 24px;
  background: var(--bg);
}

#mobile-nav a {
  display: block;
  padding: 9px 0;
  font-size: 13px;
  color: var(--muted);
  border-bottom: 1px solid var(--bg2);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

#mobile-nav a:hover {
  color: var(--accent);
}

#mobile-nav.open {
  display: block;
}

/* ============================================================
       HERO
    ============================================================ */
#hero {
  padding: 80px 0 72px;
  position: relative;
  overflow: hidden;
}

/* subtle dot grid */
#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(circle, var(--border) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.5;
}

#hero h1 {
  font-size: clamp(28px, 5vw, 50px);
  font-weight: 800;
  text-transform: uppercase;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
  max-width: 720px;
  color: var(--heading);
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

#hero h1.visible {
  opacity: 1;
  transform: translateY(0);
}

#hero h1 em {
  font-style: normal;
  color: var(--accent);
}

body.dark #hero h1 em {
  text-shadow: 0 0 14px rgba(51, 255, 0, 0.4);
}

#hero p {
  font-size: 14px;
  color: var(--body-txt);
  max-width: 520px;
  margin-bottom: 36px;
  line-height: 1.9;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease 0.2s, transform 0.8s ease 0.2s;
}

#hero p.visible {
  opacity: 1;
  transform: translateY(0);
}

.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease 0.4s, transform 0.8s ease 0.4s;
}

.hero-btns.visible {
  opacity: 1;
  transform: translateY(0);
}

.btn {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 10px 22px;
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: background 0.18s, color 0.18s, box-shadow 0.18s;
}

.btn:hover {
  background: var(--accent);
  color: var(--bg);
}

body.dark .btn:hover {
  box-shadow: 0 0 16px rgba(51, 255, 0, 0.35);
}

.btn-amber {
  border-color: var(--amber);
  color: var(--amber);
}

.btn-amber:hover {
  background: var(--amber);
  color: var(--bg);
}

/* ============================================================
       SECTION HEADERS
    ============================================================ */
.pane-header {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--muted);
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-bottom: none;
  background: var(--bg2);
  display: inline-block;
}

.section-box {
  border: 1px solid var(--border);
  padding: 32px 28px 12px;
  margin-bottom: 40px;
  background: var(--surface);
}

.section-title {
  font-size: clamp(20px, 3vw, 30px);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 8px;
  color: var(--heading);
}

.section-sub {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 8px;
}

/* ============================================================
       FEATURES / SOBRE
    ============================================================ */
#sobre {
  padding: 80px 0;
  border-top: 1px solid var(--border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 0;
  border: 1px solid var(--border);
}

.feature-card {
  padding: 28px 28px 32px;
  border-right: 1px solid var(--border);
  background: var(--surface);
  transition: background 0.2s;
  position: relative;
  overflow: hidden;
}

.feature-card:last-child {
  border-right: none;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s ease;
}

.feature-card:hover::before {
  transform: scaleX(1);
}

.feature-card:hover {
  background: var(--bg2);
}

.feature-flag {
  font-size: 11px;
  color: var(--amber);
  margin-bottom: 14px;
  letter-spacing: 0.1em;
}

.feature-card h3 {
  font-size: 15px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
  color: var(--heading);
}

.feature-card p {
  font-size: 13px;
  color: var(--body-txt);
  line-height: 1.8;
}

.feature-metric {
  margin-top: 18px;
  font-size: 12px;
}

.progress-bar-wrap {
  margin-top: 6px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.progress-bar {
  flex: 1;
  height: 6px;
  border: 1px solid var(--border);
  background: var(--bg2);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--accent);
}

body.dark .progress-fill {
  box-shadow: 0 0 6px rgba(51, 255, 0, 0.5);
}

.progress-label {
  font-size: 11px;
  color: var(--accent);
  white-space: nowrap;
}

/* ============================================================
       COMMANDS
    ============================================================ */
#commands {
  padding: 80px 0;
  border-top: 1px solid var(--border);
}

.cmd-categories {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--border);
}

.cmd-category {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.cmd-category:last-child {
  border-bottom: none;
}

.cmd-toggle {
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  padding: 15px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 600;
  color: var(--heading);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  text-align: left;
  transition: background 0.2s;
}

.cmd-toggle:hover {
  background: var(--bg2);
}

.cmd-toggle-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.cat-tag {
  font-size: 10px;
  color: var(--amber);
  letter-spacing: 0.12em;
  border: 1px solid;
  border-color: rgba(203, 75, 22, 0.35);
  padding: 2px 8px;
}

body.dark .cat-tag {
  border-color: rgba(255, 176, 0, 0.3);
}

.cmd-count {
  font-size: 11px;
  color: var(--muted);
  font-weight: 400;
}

.cmd-chevron {
  width: 14px;
  height: 14px;
  color: var(--muted);
  transition: transform 0.25s;
  flex-shrink: 0;
}

.cmd-chevron.open {
  transform: rotate(180deg);
  color: var(--accent);
}

.cmd-body {
  display: none;
  border-top: 1px solid var(--border);
  background: var(--bg);
}

.cmd-body.open {
  display: block;
}

.cmd-table {
  width: 100%;
  border-collapse: collapse;
}

.cmd-table tr {
  border-bottom: 1px solid var(--bg2);
  transition: background 0.15s;
}

.cmd-table tr:last-child {
  border-bottom: none;
}

.cmd-table tr:hover {
  background: var(--bg2);
}

.cmd-table td {
  padding: 10px 20px;
  font-size: 12px;
}

.cmd-name {
  color: var(--amber);
  white-space: nowrap;
  width: 1%;
  padding-right: 32px !important;
}

.cmd-desc {
  color: var(--body-txt);
}

.cmd-perm {
  color: var(--muted);
  text-align: right;
  white-space: nowrap;
  width: 1%;
  font-size: 11px;
}

/* ============================================================
       FOOTER
    ============================================================ */
footer {
  border-top: 1px solid var(--border);
  padding: 48px 0 32px;
  background: var(--bg2);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand {
  font-size: 18px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--heading);
  margin-bottom: 10px;
}

.footer-brand-sub {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.8;
}

.footer-col h4 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--muted);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  font-size: 13px;
  color: var(--body-txt);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s;
}

.footer-col ul li a::before {
  content: '›';
  color: var(--muted);
}

.footer-col ul li a:hover {
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px dashed var(--border);
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom-copy {
  font-size: 12px;
  color: var(--muted);
}

/* scroll-to-top */
#scroll-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--accent);
  font-size: 16px;
  font-family: var(--mono);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, background 0.2s, color 0.2s;
}

#scroll-top:hover {
  background: var(--accent);
  color: var(--bg);
}

#scroll-top.visible {
  opacity: 1;
  pointer-events: auto;
}

/* ============================================================
       RESPONSIVE
    ============================================================ */
@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

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

  .feature-card {
    border-right: none;
    border-bottom: 1px solid var(--border);
  }

  .feature-card:last-child {
    border-bottom: none;
  }

  #hero {
    padding: 52px 0 48px;
  }

  .cmd-table {
    display: block;
    overflow-x: auto;
  }
}