/* ============================================================
   NTK — GitHub Pages Stylesheet
   Design System: VALRAW dark mode (tokens from valraw.com.br)
   ============================================================ */

/* ── Google Fonts — Ubuntu ── */
@import url('https://fonts.googleapis.com/css2?family=Ubuntu:wght@400;500;600;700&family=Ubuntu+Mono:wght@400;700&display=swap');

/* ── CSS Tokens (VALRAW canonical) ── */
:root {
  /* Backgrounds */
  --color-fundo-principal:  #13171B;
  --color-fundo-cartao:     rgba(255,255,255,0.06);
  --color-fundo-hover:      rgba(255,255,255,0.04);
  --color-fundo-section:    #1A1F24;
  --color-fundo-input:      #1E2530;
  --color-fundo-base:       #0F1419;

  /* Primary — VALRAW canonical blue */
  --color-primaria:         #2979FF;
  --color-primaria-clara:   #448AFF;
  --color-primaria-hover:   #3D82FF;
  --color-primaria-dim:     rgba(41,121,255,0.10);
  --color-primaria-border:  rgba(41,121,255,0.20);
  --color-primaria-border30:rgba(41,121,255,0.30);
  --color-primaria-glow:    rgba(41,121,255,0.15);

  /* Secondary — violet */
  --color-secundaria:       #7C4DFF;
  --color-secundaria-clara: #B388FF;
  --color-secundaria-escura:#6200EA;
  --color-secundaria-dim:   rgba(124,77,255,0.10);
  --color-secundaria-border:rgba(124,77,255,0.20);

  /* Accent — green (NTK layer colours) */
  --color-acento-verde:     #00E676;
  --color-acento-verde-claro:#69F0AE;
  --color-verde-dim:        rgba(0,230,118,0.08);
  --color-verde-border:     rgba(0,230,118,0.20);
  --color-sucesso-fundo:    #00E6761A;

  /* Accent — amber / orange */
  --color-acento-laranja:   #FF9100;
  --color-acento-amarelo:   #FFD600;
  --color-amarelo-dim:      #FFD6001A;

  /* Borders */
  --color-borda-sutil:      rgba(55,71,79,0.50);
  --color-borda-padrao:     #37474F;
  --color-borda-forte:      #546E7A;
  --color-borda-foco:       #2979FF;
  --color-borda-sutil30:    rgba(55,71,79,0.30);

  /* Text */
  --color-texto-principal:  #FFFFFF;
  --color-texto-secundario: #E0E0E0;
  --color-texto-terciario:  #9E9E9E;
  --color-texto-mutado:     #757575;
  --color-texto-inverso:    #0F1419;

  /* Status */
  --color-info-fundo:       #2979FF1A;
  --color-aviso-fundo:      #FFD6001A;

  /* Border radius */
  --radius-md:  0.375rem;
  --radius-lg:  0.5rem;
  --radius-xl:  0.75rem;
  --radius-2xl: 1rem;
  --radius-3xl: 1.5rem;

  /* Typography */
  --font-sans: 'Ubuntu', system-ui, sans-serif;
  --font-mono: 'Ubuntu Mono', 'Fira Code', monospace;

  /* Section spacing */
  --spacing-section: 6rem;
  --spacing-section-mobile: 4rem;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background-color: var(--color-fundo-principal);
  color: var(--color-texto-principal);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection { color: #fff; background: rgba(41,121,255,0.30); }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-fundo-principal); }
::-webkit-scrollbar-thumb { background: var(--color-borda-padrao); border-radius: 3px; }

a { color: var(--color-primaria-clara); text-decoration: none; }
a:hover { color: var(--color-texto-principal); }

/* ── Container ── */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}
@media (min-width: 640px)  { .container { padding: 0 1.5rem; } }
@media (min-width: 1024px) { .container { padding: 0 2rem; } }

/* ── Header ── */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: 4rem;
  display: flex;
  align-items: center;
  background: transparent;
  transition: background 0.3s, border-color 0.3s, backdrop-filter 0.3s;
  border-bottom: 1px solid transparent;
}
.header > .container {
  width: 100%;
  height: 100%;
}
.header.scrolled {
  background: rgba(15,20,25,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--color-borda-sutil);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--color-texto-principal);
}
.logo-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-md);
  background: var(--color-primaria-dim);
  border: 1px solid var(--color-primaria-border);
  color: var(--color-primaria-clara);
  letter-spacing: 0.05em;
}
.nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}
.nav-link {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  color: var(--color-texto-terciario);
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
  border: none;
  background: none;
  font-family: var(--font-sans);
}
.nav-link:hover { color: var(--color-texto-principal); background: rgba(255,255,255,0.05); }
.nav-link.active { color: var(--color-texto-principal); background: rgba(255,255,255,0.08); }

.header-cta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.lang-btn {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-lg);
  background: transparent;
  border: 1px solid var(--color-borda-forte);
  color: var(--color-texto-terciario);
  cursor: pointer;
  transition: all 0.2s;
}
.lang-btn:hover { border-color: var(--color-primaria); color: var(--color-primaria-clara); }

/* ── Mobile menu ── */
.mobile-menu-btn {
  display: none;
  padding: 0.5rem;
  border-radius: var(--radius-lg);
  background: none;
  border: none;
  color: var(--color-texto-terciario);
  cursor: pointer;
  font-size: 1.25rem;
  transition: all 0.2s;
}
.mobile-menu-btn:hover { color: var(--color-texto-principal); background: rgba(255,255,255,0.05); }
@media (max-width: 767px) {
  .nav, .header-cta .btn-primary { display: none; }
  .mobile-menu-btn { display: flex; align-items: center; }
}
.mobile-nav {
  display: none;
  flex-direction: column;
  background: rgba(15,20,25,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-borda-sutil);
  padding: 1rem;
  gap: 0.25rem;
}
.mobile-nav.open { display: flex; }
.mobile-nav .nav-link { display: block; padding: 0.75rem 1rem; }

/* ── Page system ── */
.page { display: none; }
.page.active { display: block; }

/* ── Hero section ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 4rem;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image:
    linear-gradient(rgba(255,255,255,0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.1) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-orb-blue {
  position: absolute;
  top: 25%; left: 33%;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: #2979FF;
  filter: blur(140px);
  opacity: 0.15;
  transform: translate(-50%, -50%);
}
.hero-orb-green {
  position: absolute;
  bottom: 25%; right: 25%;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: #00E676;
  filter: blur(120px);
  opacity: 0.10;
}
.hero-orb-violet {
  position: absolute;
  top: 60%; left: 70%;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: #7C4DFF;
  filter: blur(120px);
  opacity: 0.08;
}
.hero-fade {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent, transparent, var(--color-fundo-principal));
}
.hero-content {
  position: relative;
  z-index: 1;
  padding: var(--spacing-section-mobile) 0;
  text-align: center;
}
@media (min-width: 768px) { .hero-content { padding: var(--spacing-section) 0; } }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.875rem;
  border-radius: 9999px;
  background: var(--color-info-fundo);
  border: 1px solid var(--color-primaria-border);
  color: var(--color-primaria-clara);
  font-size: 0.75rem;
  font-weight: 500;
  margin-bottom: 1.5rem;
}
.hero-badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-acento-verde);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-title {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}
@media (min-width: 640px) { .hero-title { font-size: 4.5rem; } }
@media (min-width: 1024px) { .hero-title { font-size: 5.5rem; } }

/* VALRAW canonical gradient: blue → violet */
.gradient-text-blue {
  background: linear-gradient(135deg, #448AFF, #B388FF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
/* Green accent gradient */
.gradient-text-green {
  background: linear-gradient(135deg, #00E676, #69F0AE);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
/* Blue → green for NTK savings */
.gradient-text-savings {
  background: linear-gradient(135deg, #448AFF, #00E676);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--color-texto-terciario);
  max-width: 640px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}
@media (min-width: 640px) { .hero-subtitle { font-size: 1.25rem; } }

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 4rem;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-weight: 600;
  border-radius: var(--radius-xl);
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  focus-visible: outline-none;
}
.btn:active { transform: scale(0.98); }
.btn:focus-visible { outline: 2px solid var(--color-borda-foco); outline-offset: 2px; }

/* Green CTA — hero action */
.btn-primary {
  padding: 0.875rem 2rem;
  font-size: 1rem;
  background: var(--color-acento-verde);
  color: var(--color-texto-inverso);
  border-radius: var(--radius-xl);
}
.btn-primary:hover {
  background: var(--color-acento-verde-claro);
  color: var(--color-texto-inverso);
  box-shadow: 0 0 30px rgba(0,230,118,0.35);
}

/* Blue primary — inside pages */
.btn-blue {
  padding: 0.875rem 2rem;
  font-size: 1rem;
  background: var(--color-primaria);
  color: #fff;
  border: 1px solid rgba(68,138,255,0.20);
  border-radius: var(--radius-xl);
}
.btn-blue:hover {
  background: var(--color-primaria-hover);
  box-shadow: 0 0 30px rgba(41,121,255,0.35);
}
.btn-blue.btn-sm { padding: 0.5rem 1rem; font-size: 0.875rem; border-radius: var(--radius-lg); font-weight: 500; }

.btn-secondary {
  padding: 0.875rem 2rem;
  font-size: 1rem;
  background: transparent;
  color: var(--color-texto-principal);
  border: 1px solid var(--color-borda-forte);
  border-radius: var(--radius-xl);
}
.btn-secondary:hover {
  border-color: var(--color-primaria);
  color: var(--color-primaria-clara);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  border-radius: var(--radius-lg);
  font-weight: 500;
}

/* ── Install strip ── */
.install-strip {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-2xl);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--color-borda-sutil);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-texto-secundario);
  cursor: pointer;
  transition: all 0.2s;
}
.install-strip:hover { border-color: var(--color-borda-forte); background: rgba(255,255,255,0.06); }
.install-strip-label {
  font-size: 0.75rem;
  color: var(--color-texto-mutado);
  font-family: var(--font-sans);
  margin-right: 0.25rem;
}
.copy-icon { color: var(--color-texto-mutado); transition: color 0.2s; font-size: 0.875rem; }
.install-strip:hover .copy-icon { color: var(--color-primaria-clara); }

/* ── Stats bar (hero) ── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  max-width: 700px;
  margin: 0 auto;
}
@media (min-width: 640px) { .stats-row { grid-template-columns: repeat(4, 1fr); } }

.stat-card {
  padding: 1.25rem;
  border-radius: var(--radius-2xl);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--color-borda-sutil);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  text-align: center;
}
.stat-value {
  font-family: var(--font-mono);
  font-size: 1.75rem;
  font-weight: 700;
  background: linear-gradient(135deg, #448AFF, #B388FF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--color-texto-mutado);
  margin-top: 0.25rem;
}

/* ── Section ── */
.section {
  padding: var(--spacing-section-mobile) 0;
  position: relative;
}
@media (min-width: 768px) { .section { padding: var(--spacing-section) 0; } }

.section-alt { background: rgba(26,31,36,0.30); }

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}
.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
  margin-bottom: 1rem;
}
.section-badge-blue {
  background: var(--color-info-fundo);
  border: 1px solid var(--color-primaria-border);
  color: var(--color-primaria-clara);
}
.section-badge-green {
  background: var(--color-sucesso-fundo);
  border: 1px solid var(--color-verde-border);
  color: var(--color-acento-verde);
}
.section-badge-violet {
  background: var(--color-secundaria-dim);
  border: 1px solid var(--color-secundaria-border);
  color: var(--color-secundaria-clara);
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}
@media (min-width: 768px) { .section-title { font-size: 2.5rem; } }

.section-desc {
  font-size: 1.0625rem;
  color: var(--color-texto-terciario);
  max-width: 560px;
  margin: 0 auto;
}

/* ── KPI cards ── */
.kpi-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 640px) { .kpi-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .kpi-grid { grid-template-columns: repeat(4, 1fr); } }

.kpi-card {
  padding: 1.5rem;
  border-radius: var(--radius-3xl);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-primaria-border30);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 0 60px rgba(41,121,255,0.08);
  transition: transform 0.2s, box-shadow 0.2s;
}
.kpi-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 80px rgba(41,121,255,0.15);
}
.kpi-icon {
  width: 3rem; height: 3rem;
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 1rem;
}
.kpi-icon-blue { background: var(--color-primaria-dim); border: 1px solid var(--color-primaria-border); color: var(--color-primaria-clara); }
.kpi-icon-green { background: var(--color-verde-dim); border: 1px solid var(--color-verde-border); color: var(--color-acento-verde); }
.kpi-icon-violet { background: var(--color-secundaria-dim); border: 1px solid var(--color-secundaria-border); color: var(--color-secundaria-clara); }

.kpi-value {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 0.375rem;
}
.kpi-sublabel { font-size: 0.8125rem; color: var(--color-texto-mutado); margin-top: 0.25rem; }
.kpi-label { font-size: 0.875rem; color: var(--color-texto-terciario); }

/* ── Savings table ── */
.savings-table-wrap {
  border-radius: var(--radius-3xl);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-borda-sutil);
  overflow: hidden;
}
.savings-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.savings-table th {
  padding: 0.875rem 1.25rem;
  text-align: left;
  font-weight: 600;
  color: var(--color-texto-terciario);
  background: rgba(255,255,255,0.02);
  border-bottom: 1px solid var(--color-borda-sutil);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.savings-table td {
  padding: 0.875rem 1.25rem;
  border-bottom: 1px solid var(--color-borda-sutil30);
  vertical-align: middle;
}
.savings-table tr:last-child td { border-bottom: none; }
.savings-table tr:hover td { background: rgba(255,255,255,0.02); }

.progress-cell { min-width: 180px; }
.progress-bar-bg {
  height: 6px;
  background: rgba(255,255,255,0.06);
  border-radius: 9999px;
  overflow: hidden;
  margin-top: 0.375rem;
}
.progress-bar-fill {
  height: 100%;
  border-radius: 9999px;
  background: linear-gradient(to right, #2979FF, #00E676);
  width: 0;
  transition: width 1s ease;
}
.progress-bar-fill.combined {
  background: linear-gradient(to right, #448AFF, #B388FF);
}
.progress-bar-fill.gpu {
  background: linear-gradient(to right, #7C4DFF, #2979FF);
}

.range-badge {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-acento-verde);
}
.range-badge.combined { color: var(--color-primaria-clara); }
.range-badge.gpu-badge { color: var(--color-secundaria-clara); }

/* ── Feature cards ── */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}
@media (min-width: 640px) { .features-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .features-grid { grid-template-columns: repeat(3, 1fr); } }

.feature-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  border-radius: var(--radius-2xl);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-borda-sutil);
  backdrop-filter: blur(4px);
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}
.feature-card:hover {
  background: rgba(255,255,255,0.05);
  border-color: var(--color-primaria-border);
  box-shadow: 0 0 30px rgba(41,121,255,0.08);
}
.feature-icon {
  width: 2.5rem; height: 2.5rem;
  flex-shrink: 0;
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--color-primaria-clara);
}
.feature-title {
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: 0.25rem;
}
.feature-desc { font-size: 0.8125rem; color: var(--color-texto-terciario); line-height: 1.5; }

/* ── Terminal mockup ── */
.terminal {
  border-radius: var(--radius-2xl);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--color-borda-sutil);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  overflow: hidden;
  box-shadow: 0 0 80px rgba(41,121,255,0.12), 0 40px 80px rgba(0,0,0,0.4);
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-borda-sutil);
  background: rgba(255,255,255,0.02);
}
.terminal-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
}
.terminal-dot-red   { background: #FF5F57; }
.terminal-dot-yellow{ background: #FEBC2E; }
.terminal-dot-green { background: #28C840; }
.terminal-title {
  flex: 1;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-texto-mutado);
}
.terminal-body {
  padding: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.8;
  color: var(--color-texto-secundario);
  overflow-x: auto;
}
.terminal-body .prompt { color: var(--color-acento-verde); }
.terminal-body .cmd { color: var(--color-texto-principal); }
.terminal-body .comment { color: var(--color-texto-mutado); }
.terminal-body .success { color: var(--color-acento-verde); }
.terminal-body .info { color: var(--color-primaria-clara); }
.terminal-body .dim { color: var(--color-texto-mutado); }
.terminal-body .highlight { color: var(--color-secundaria-clara); }
.terminal-body .warn { color: #FFD600; }

/* ── NTK Dashboard mockup widget ── */
.ntk-widget {
  border-radius: var(--radius-2xl);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--color-borda-sutil);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  overflow: hidden;
  box-shadow: 0 0 80px rgba(41,121,255,0.15), 0 40px 80px rgba(0,0,0,0.4);
}
.ntk-widget-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1rem;
  border-bottom: 1px solid var(--color-borda-sutil);
  background: rgba(255,255,255,0.02);
}
.ntk-widget-body {
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.7;
}
.ntk-widget-header-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--color-borda-sutil30);
  margin-bottom: 0.75rem;
}
.ntk-widget-ascii {
  color: var(--color-primaria-clara);
  font-size: 0.6875rem;
  line-height: 1.3;
}
.ntk-widget-meta {
  text-align: right;
  color: var(--color-texto-mutado);
  font-size: 0.6875rem;
}
.ntk-widget-meta strong { color: var(--color-acento-verde); }
.ntk-metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}
.ntk-metric-box {
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-xl);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-borda-sutil30);
}
.ntk-metric-box-green {
  background: rgba(0,230,118,0.06);
  border-color: rgba(0,230,118,0.20);
}
.ntk-metric-label { font-size: 0.625rem; color: var(--color-texto-mutado); text-transform: uppercase; letter-spacing: 0.06em; }
.ntk-metric-val { font-size: 0.875rem; font-weight: 700; }
.ntk-metric-val-green { color: var(--color-acento-verde); }
.ntk-metric-val-blue { color: var(--color-primaria-clara); }
.ntk-metric-val-violet { color: var(--color-secundaria-clara); }
.ntk-layer-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.375rem;
}
.ntk-layer-label { width: 2rem; color: var(--color-texto-mutado); font-size: 0.6875rem; }
.ntk-layer-bar-bg {
  flex: 1;
  height: 4px;
  background: rgba(255,255,255,0.06);
  border-radius: 9999px;
  overflow: hidden;
}
.ntk-layer-bar-fill {
  height: 100%;
  border-radius: 9999px;
  transition: width 1.2s ease;
}
.ntk-layer-bar-l1 { background: linear-gradient(to right, #2979FF, #448AFF); }
.ntk-layer-bar-l2 { background: linear-gradient(to right, #00B0FF, #00E676); }
.ntk-layer-bar-l3 { background: linear-gradient(to right, #7C4DFF, #B388FF); }
.ntk-layer-count { font-size: 0.6875rem; color: var(--color-texto-mutado); width: 4rem; text-align: right; }

.ntk-cmd-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.375rem 0;
  border-bottom: 1px solid rgba(55,71,79,0.20);
  font-size: 0.6875rem;
}
.ntk-cmd-row:last-child { border-bottom: none; }
.ntk-cmd-name { color: var(--color-texto-secundario); }
.ntk-cmd-savings { color: var(--color-acento-verde); font-weight: 700; }
.ntk-cmd-layer { padding: 0.0625rem 0.375rem; border-radius: var(--radius-md); font-size: 0.625rem; font-weight: 700; }
.ntk-layer-l1 { background: rgba(41,121,255,0.15); color: var(--color-primaria-clara); }
.ntk-layer-l2 { background: rgba(0,230,118,0.10); color: var(--color-acento-verde); }
.ntk-layer-l3 { background: rgba(124,77,255,0.15); color: var(--color-secundaria-clara); }
.ntk-widget-section-title {
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-texto-mutado);
  padding: 0.5rem 0 0.375rem;
  border-bottom: 1px solid var(--color-borda-sutil30);
  margin-bottom: 0.5rem;
}

/* ── How it works steps ── */
.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}
@media (min-width: 768px) { .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 3rem; } }
@media (min-width: 1024px) { .steps-grid { grid-template-columns: repeat(4, 1fr); gap: 2rem; } }

.step-card { text-align: center; }
.step-number {
  width: 3rem; height: 3rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
  margin: 0 auto 1rem;
  background: linear-gradient(135deg, #2979FF 0%, #448AFF 100%);
  color: #fff;
  box-shadow: 0 0 20px rgba(41,121,255,0.40);
}
.step-title {
  font-weight: 600;
  margin-bottom: 0.5rem;
}
.step-desc { font-size: 0.875rem; color: var(--color-texto-terciario); }

/* ── Demo section layout ── */
.demo-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}
@media (min-width: 1024px) { .demo-grid { grid-template-columns: 1fr 1fr; } }

.demo-text { order: 2; }
.demo-widget { order: 1; }
@media (min-width: 1024px) {
  .demo-text { order: 1; }
  .demo-widget { order: 2; }
}

/* ── GPU comparison table ── */
.gpu-table-wrap {
  border-radius: var(--radius-3xl);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-secundaria-border);
  overflow: hidden;
  margin-top: 2.5rem;
}
.gpu-table-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--color-borda-sutil);
  background: rgba(124,77,255,0.05);
}
.gpu-table-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-secundaria-clara);
}
.gpu-table-badge {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-md);
  background: var(--color-secundaria-dim);
  border: 1px solid var(--color-secundaria-border);
  color: var(--color-secundaria-clara);
}
.gpu-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.gpu-table th {
  padding: 0.75rem 1.25rem;
  text-align: left;
  font-weight: 600;
  color: var(--color-texto-terciario);
  background: rgba(255,255,255,0.02);
  border-bottom: 1px solid var(--color-borda-sutil);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.gpu-table td {
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--color-borda-sutil30);
  vertical-align: middle;
}
.gpu-table tr:last-child td { border-bottom: none; }
.gpu-table tr:hover td { background: rgba(255,255,255,0.02); }
.gpu-badge-type {
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  font-weight: 700;
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-md);
  white-space: nowrap;
}
.gpu-badge-cuda { background: rgba(118,185,0,0.12); color: #76B900; border: 1px solid rgba(118,185,0,0.25); }
.gpu-badge-metal { background: rgba(255,145,0,0.12); color: #FF9100; border: 1px solid rgba(255,145,0,0.25); }
.gpu-badge-amx { background: rgba(41,121,255,0.12); color: var(--color-primaria-clara); border: 1px solid var(--color-primaria-border); }
.gpu-badge-cpu { background: rgba(124,77,255,0.12); color: var(--color-secundaria-clara); border: 1px solid var(--color-secundaria-border); border-radius: 16px; }
.gpu-latency-fast { color: var(--color-acento-verde); font-family: var(--font-mono); font-weight: 700; }
.gpu-latency-mid { color: var(--color-primaria-clara); font-family: var(--font-mono); font-weight: 700; }
.gpu-latency-slow { color: var(--color-acento-amarelo); font-family: var(--font-mono); font-weight: 700; }

/* ── Get Started page ── */
.gs-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-top: 6rem;
  padding-bottom: var(--spacing-section);
}
@media (min-width: 1024px) {
  .gs-layout { grid-template-columns: 240px 1fr; gap: 3rem; }
}

.gs-sidebar {
  position: sticky;
  top: 5rem;
  align-self: start;
}
.gs-toc {
  list-style: none;
  border-left: 2px solid var(--color-borda-sutil);
  padding-left: 1rem;
}
.gs-toc li { margin-bottom: 0.5rem; }
.gs-toc a {
  font-size: 0.875rem;
  color: var(--color-texto-mutado);
  transition: color 0.2s;
}
.gs-toc a:hover, .gs-toc a.active { color: var(--color-primaria-clara); }

.gs-content { min-width: 0; }

.step-block {
  margin-bottom: 3rem;
}
.step-block-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}
.step-num-circle {
  width: 2rem; height: 2rem;
  border-radius: 50%;
  background: var(--color-primaria);
  color: #fff;
  font-weight: 700;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.step-block-title { font-size: 1.25rem; font-weight: 700; }
.step-block p { color: var(--color-texto-terciario); line-height: 1.7; margin-bottom: 1rem; font-size: 0.9375rem; }

.code-block {
  position: relative;
  border-radius: var(--radius-xl);
  background: var(--color-fundo-base);
  border: 1px solid var(--color-borda-sutil);
  overflow: hidden;
  margin-bottom: 1rem;
}
.code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1rem;
  background: rgba(255,255,255,0.02);
  border-bottom: 1px solid var(--color-borda-sutil);
  font-size: 0.75rem;
  color: var(--color-texto-mutado);
  font-family: var(--font-mono);
}
.copy-btn {
  background: none;
  border: none;
  color: var(--color-texto-mutado);
  cursor: pointer;
  font-size: 0.75rem;
  transition: color 0.2s;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-family: var(--font-sans);
}
.copy-btn:hover { color: var(--color-primaria-clara); }
.code-block pre {
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.8;
  color: var(--color-texto-secundario);
  overflow-x: auto;
  margin: 0;
}
.code-block .kw { color: var(--color-secundaria-clara); }
.code-block .str { color: var(--color-acento-verde-claro); }
.code-block .cmt { color: var(--color-texto-mutado); font-style: italic; }
.code-block .var { color: var(--color-primaria-clara); }

/* ── Commands page ── */
.commands-page {
  padding-top: 6rem;
  padding-bottom: var(--spacing-section);
}
.commands-search {
  width: 100%;
  max-width: 480px;
  margin: 0 auto 2rem;
  display: block;
  padding: 0.75rem 1rem 0.75rem 2.75rem;
  border-radius: var(--radius-xl);
  background: var(--color-fundo-input);
  border: 1px solid var(--color-borda-sutil);
  color: var(--color-texto-principal);
  font-size: 0.9375rem;
  font-family: var(--font-sans);
  transition: border-color 0.2s;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%239E9E9E' viewBox='0 0 16 16'%3E%3Cpath d='M11.742 10.344a6.5 6.5 0 1 0-1.397 1.398h-.001c.03.04.062.078.098.115l3.85 3.85a1 1 0 0 0 1.415-1.414l-3.85-3.85a1.007 1.007 0 0 0-.115-.099zm-5.44 1.406a5.5 5.5 0 1 1 0-11 5.5 5.5 0 0 1 0 11z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 0.875rem center;
}
.commands-search:focus { outline: none; border-color: var(--color-borda-foco); }
.commands-search::placeholder { color: var(--color-texto-mutado); }

.cmd-group { margin-bottom: 2.5rem; }
.cmd-group-title {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-texto-mutado);
  margin-bottom: 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-borda-sutil30);
}
.cmd-row {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 0.875rem 1rem;
  border-radius: var(--radius-xl);
  border: 1px solid transparent;
  transition: all 0.15s;
}
.cmd-row:hover {
  background: rgba(255,255,255,0.03);
  border-color: var(--color-borda-sutil);
}
.cmd-name {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  color: var(--color-texto-principal);
  min-width: 200px;
  flex-shrink: 0;
}
.cmd-name .cmd-arg { color: var(--color-primaria-clara); }
.cmd-desc {
  font-size: 0.875rem;
  color: var(--color-texto-terciario);
  flex: 1;
}
.cmd-badge {
  font-size: 0.6875rem;
  font-family: var(--font-mono);
  font-weight: 700;
  padding: 0.125rem 0.5rem;
  border-radius: var(--radius-md);
  white-space: nowrap;
}
.cmd-badge-new { background: var(--color-sucesso-fundo); color: var(--color-acento-verde); border: 1px solid var(--color-verde-border); }

/* ── Metrics page ── */
.metrics-page {
  padding-top: 6rem;
  padding-bottom: var(--spacing-section);
}
.metrics-tab-group {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--color-borda-sutil);
  padding: 0.25rem;
  border-radius: var(--radius-xl);
  width: fit-content;
}
.metrics-tab {
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  border: none;
  background: none;
  color: var(--color-texto-mutado);
  font-family: var(--font-sans);
  transition: all 0.2s;
}
.metrics-tab.active {
  background: var(--color-primaria);
  color: #fff;
}
.metrics-tab:hover:not(.active) { color: var(--color-texto-principal); }

.metrics-panel { display: none; }
.metrics-panel.active { display: block; }

.savings-tabs-wrap { overflow-x: auto; }

/* ── Footer ── */
.footer {
  background: var(--color-fundo-base);
  border-top: 1px solid var(--color-borda-sutil);
  padding: 3rem 0 1.5rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}
@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
}
.footer-brand p { font-size: 0.875rem; color: var(--color-texto-mutado); line-height: 1.6; margin-top: 0.75rem; }
.footer-col-title { font-size: 0.8125rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-texto-mutado); margin-bottom: 1rem; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; }
.footer-links a { font-size: 0.875rem; color: var(--color-texto-terciario); transition: color 0.2s; cursor: pointer; }
.footer-links a:hover { color: var(--color-texto-principal); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-borda-sutil30);
  font-size: 0.8125rem;
  color: var(--color-texto-mutado);
}

/* ── Fade-in animation ── */
.fade-in { opacity: 0; transform: translateY(16px); transition: opacity 0.5s ease, transform 0.5s ease; }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ── Divider ── */
.divider { height: 1px; background: var(--color-borda-sutil30); margin: 0; }

/* ── Responsive table ── */
@media (max-width: 639px) {
  .savings-table { font-size: 0.8125rem; }
  .savings-table th, .savings-table td { padding: 0.625rem 0.75rem; }
  .gpu-table th, .gpu-table td { padding: 0.625rem 0.75rem; }
  .cmd-row { flex-wrap: wrap; }
  .cmd-name { min-width: unset; }
  .ntk-metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .ntk-widget-ascii { display: none; }
}