/* ===== NFGuard Global Styles ===== */

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

:root {
  --bg:        #000000;
  --bg-card:   #0a0a0a;
  --bg-code:   #0d1117;
  --border:    #1a1a2e;
  --cyan:      #00e5ff;
  --cyan-dim:  #00b8d4;
  --red:       #ff1744;
  --green:     #00e676;
  --yellow:    #ffd600;
  --text:      #e0e0e0;
  --text-dim:  #9e9e9e;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --font-sans: 'Inter', 'Segoe UI', system-ui, sans-serif;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  width: 100%;
}

a { color: var(--cyan); text-decoration: none; transition: color .2s; }
a:hover { color: var(--cyan-dim); text-decoration: underline; }

img { max-width: 100%; height: auto; }
code { word-break: break-word; }

/* -- Utility -- */
.container { max-width: 1200px; width: 100%; margin: 0 auto; padding: 0 2rem; }
.text-center { text-align: center; }
.text-cyan   { color: var(--cyan); }
.text-red    { color: var(--red); }
.text-green  { color: var(--green); }
.text-dim    { color: var(--text-dim); }
.text-yellow { color: var(--yellow); }
.mt-1 { margin-top: .5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 2rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 2rem; }

/* -- Navigation -- */
.navbar {
  position: fixed; top: 0; width: 100%; z-index: 1000;
  background: rgba(0,0,0,.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: .75rem 0;
}
.navbar .container {
  display: flex; align-items: center; justify-content: space-between;
}
.navbar-logo { display: flex; align-items: center; gap: .75rem; }
.navbar-logo img { height: 52px; }
.navbar-logo span { font-family: var(--font-mono); font-weight: 700; font-size: 1.1rem; color: var(--cyan); }
.navbar-links { display: flex; gap: 2rem; list-style: none; }
.navbar-links a {
  color: var(--text-dim); font-size: .9rem; font-weight: 500;
  transition: color .2s;
}
.navbar-links a:hover,
.navbar-links a.active { color: var(--cyan); text-decoration: none; }

.navbar-hamburger {
  display: none; background: none; border: none; cursor: pointer; padding: .5rem;
}
.navbar-hamburger span {
  display: block; width: 24px; height: 2px; background: var(--text);
  margin: 5px 0; transition: .3s;
}

/* -- Hero Section -- */
.hero {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding-top: 5rem;
  text-align: center;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(0,229,255,.04) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(255,23,68,.03) 0%, transparent 50%),
    var(--bg);
}
.hero-logo { max-width: 420px; width: 100%; margin: 0 auto .75rem; }
.hero h1 {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -.02em;
}
.hero h1 .accent { color: var(--cyan); }
.hero .tagline {
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  color: var(--text-dim);
  margin-top: .75rem;
  max-width: 700px;
  margin-left: auto; margin-right: auto;
}
.hero .version-badge {
  display: inline-block;
  margin-top: 1.5rem;
  padding: .35rem 1rem;
  border: 1px solid var(--cyan);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: .85rem;
  color: var(--cyan);
}

.hero-cta {
  margin-top: 2.5rem;
  display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap;
}

/* -- Buttons -- */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  padding: .75rem 2rem;
  border-radius: 6px;
  font-weight: 600; font-size: .95rem;
  cursor: pointer;
  transition: all .2s;
  border: none;
  text-decoration: none;
}
.btn-primary {
  background: var(--cyan); color: #000;
}
.btn-primary:hover {
  background: var(--cyan-dim); color: #000; text-decoration: none;
}
.btn-outline {
  background: transparent; color: var(--cyan);
  border: 1px solid var(--cyan);
}
.btn-outline:hover {
  background: rgba(0,229,255,.1); text-decoration: none;
}

/* -- Install Box -- */
.install-box {
  max-width: 750px;
  width: 100%;
  margin: 2rem auto 0;
  text-align: left;
}
.install-label {
  display: block;
  font-size: .85rem;
  color: var(--text-dim);
  margin-bottom: .5rem;
  text-align: center;
}
.install-cmd {
  display: flex;
  align-items: center;
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: .75rem 1rem;
  gap: .75rem;
  transition: border-color .2s;
  min-width: 0;
}
.install-cmd:hover {
  border-color: var(--cyan);
}
.install-cmd code {
  flex: 1;
  min-width: 0;
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--green);
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
.copy-btn {
  flex-shrink: 0;
  background: rgba(0,229,255,.1);
  border: 1px solid var(--cyan);
  border-radius: 6px;
  padding: .4rem .7rem;
  cursor: pointer;
  font-size: 1rem;
  transition: all .2s;
  color: var(--cyan);
}
.copy-btn:hover {
  background: rgba(0,229,255,.2);
}
.copy-btn.copied {
  border-color: var(--green);
  background: rgba(0,230,118,.15);
}

/* -- CLI Screenshot -- */
.cli-screenshot {
  max-width: 700px;
  width: 100%;
  margin: 3rem auto 0;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 8px 32px rgba(0,229,255,.08), 0 2px 8px rgba(0,0,0,.5);
  transition: transform .3s, box-shadow .3s;
}
.cli-screenshot:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,229,255,.12), 0 4px 12px rgba(0,0,0,.6);
}
.cli-screenshot img {
  display: block;
  width: 100%;
  height: auto;
}

/* -- Sections -- */
section { padding: 5rem 0; }
section:nth-child(even) { background: rgba(10,10,10,.5); }

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}
.section-header h2 {
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
}
.section-header p {
  color: var(--text-dim);
  margin-top: .5rem;
  max-width: 600px;
  margin-left: auto; margin-right: auto;
}

/* -- Feature Grid -- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr));
  gap: 1.5rem;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  transition: border-color .25s, transform .25s;
  min-width: 0;
  overflow-wrap: break-word;
}
.feature-card:hover {
  border-color: var(--cyan);
  transform: translateY(-3px);
}
.feature-card .icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}
.feature-card h3 {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  margin-bottom: .5rem;
  color: #fff;
}
.feature-card p {
  font-size: .92rem;
  color: var(--text-dim);
}

/* -- Tools Section -- */
.tools-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 2rem;
}
.tool-category h3 {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--cyan);
  margin-bottom: 1rem;
  padding-bottom: .5rem;
  border-bottom: 1px solid var(--border);
}
.tool-list {
  list-style: none;
}
.tool-list li {
  padding: .4rem 0;
  font-size: .88rem;
  color: var(--text-dim);
  display: flex;
  align-items: baseline;
  gap: .5rem;
  min-width: 0;
}
.tool-list li::before {
  content: ">";
  color: var(--green);
  font-family: var(--font-mono);
  font-weight: 700;
}
.tool-list .tool-name {
  color: #fff;
  font-family: var(--font-mono);
  font-weight: 600;
}

/* -- Agents Section -- */
.agents-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: 1.5rem;
}
.agent-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  text-align: center;
  transition: border-color .25s;
  min-width: 0;
  overflow-wrap: break-word;
}
.agent-card:hover { border-color: var(--red); }
.agent-card .agent-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.agent-card h3 {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: #fff;
  margin-bottom: .75rem;
}
.agent-card p { font-size: .88rem; color: var(--text-dim); }

/* -- Skills Section -- */
.skills-list {
  max-width: 700px;
  width: 100%;
  margin: 0 auto;
}
.skill-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem 2rem;
  margin-bottom: 1rem;
  transition: border-color .25s;
  min-width: 0;
  overflow-wrap: break-word;
}
.skill-item:hover { border-color: var(--yellow); }
.skill-item h3 {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--yellow);
  margin-bottom: .5rem;
  word-break: break-word;
}
.skill-item p {
  font-size: .9rem;
  color: var(--text-dim);
}

/* -- Architecture Section -- */
.arch-diagram {
  max-width: 800px;
  width: 100%;
  margin: 0 auto;
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2rem;
  font-family: var(--font-mono);
  font-size: .85rem;
  line-height: 1.6;
  white-space: pre;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  color: var(--text-dim);
}

/* -- Info Bar / Stats -- */
.stats-bar {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 3rem;
  padding: 3rem 0;
}
.stat-item { text-align: center; }
.stat-item .number {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--cyan);
}
.stat-item .label {
  font-size: .85rem;
  color: var(--text-dim);
  margin-top: .25rem;
}

/* -- Footer -- */
.footer {
  border-top: 1px solid var(--border);
  padding: 3rem 0;
  text-align: center;
}
.footer-info {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 2rem;
  margin-bottom: 1.5rem;
  font-size: .88rem;
}
.footer-info span { color: var(--text-dim); }
.footer-bottom {
  font-size: .8rem;
  color: var(--text-dim);
}

/* -- Code blocks (docs) -- */
.code-block {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem 1.5rem;
  font-family: var(--font-mono);
  font-size: .88rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1rem 0;
  color: var(--text);
  max-width: 100%;
  min-width: 0;
  white-space: pre-wrap;
  overflow-wrap: break-word;
}
.code-block .comment { color: var(--text-dim); }

/* -- Docs Layout -- */
.docs-layout {
  display: grid;
  grid-template-columns: 250px 1fr;
  gap: 3rem;
  padding-top: 6rem;
  min-height: 100vh;
}
.docs-sidebar {
  position: sticky;
  top: 5rem;
  height: fit-content;
  max-height: calc(100vh - 6rem);
  overflow-y: auto;
}
.docs-sidebar ul {
  list-style: none;
  padding: 0;
}
.docs-sidebar li { margin-bottom: .25rem; }
.docs-sidebar a {
  display: block;
  padding: .4rem .75rem;
  font-size: .88rem;
  color: var(--text-dim);
  border-left: 2px solid transparent;
  border-radius: 0 4px 4px 0;
  transition: all .2s;
}
.docs-sidebar a:hover,
.docs-sidebar a.active {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: rgba(0,229,255,.05);
  text-decoration: none;
}
.docs-sidebar .sidebar-title {
  font-family: var(--font-mono);
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text-dim);
  padding: .5rem .75rem;
  margin-top: 1rem;
}

/* -- Docs mobile sidebar toggle -- */
.docs-sidebar-toggle {
  display: none;
  width: 100%;
  padding: .75rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: .9rem;
  cursor: pointer;
  text-align: left;
  margin-bottom: 1rem;
}
.docs-sidebar-toggle span {
  margin-right: .5rem;
}

.docs-content {
  padding-bottom: 5rem;
  min-width: 0;
  overflow-wrap: break-word;
  word-wrap: break-word;
}
.docs-content h1 {
  font-family: var(--font-mono);
  font-size: 2rem;
  margin-bottom: 1rem;
}
.docs-content h2 {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  margin-top: 3rem;
  margin-bottom: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: #fff;
}
.docs-content h3 {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  margin-top: 2rem;
  margin-bottom: .75rem;
  color: var(--cyan);
}
.docs-content p { margin-bottom: 1rem; }
.docs-content ul, .docs-content ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}
.docs-content li { margin-bottom: .35rem; color: var(--text-dim); }
.docs-content strong { color: #fff; }
.docs-content table {
  width: 100%;
  max-width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: .88rem;
}
.docs-content th, .docs-content td {
  padding: .6rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.docs-content th {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .05em;
}
.docs-content td { color: var(--text-dim); }
.docs-content td code {
  background: var(--bg-code);
  padding: .15rem .4rem;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: .85rem;
  color: var(--cyan);
  word-break: break-all;
}
.docs-content .callout {
  background: rgba(0,229,255,.05);
  border-left: 3px solid var(--cyan);
  padding: 1rem 1.5rem;
  border-radius: 0 6px 6px 0;
  margin: 1.5rem 0;
  font-size: .92rem;
}
.docs-content .callout.warning {
  background: rgba(255,214,0,.05);
  border-left-color: var(--yellow);
}
.docs-content .callout strong {
  display: block;
  margin-bottom: .25rem;
}

/* -- Pre-release banner (index page) -- */
.prerelease-banner {
  background: rgba(255,214,0,.06);
  border: 1px solid rgba(255,214,0,.2);
  border-radius: 10px;
  padding: 2rem 2.5rem;
  margin: 0 auto;
  max-width: 800px;
  width: 100%;
  text-align: center;
  overflow-wrap: break-word;
}
.prerelease-banner h2 {
  color: var(--yellow);
  font-size: 1.4rem;
  margin-bottom: 1rem;
}
.prerelease-banner p {
  color: var(--text-dim);
  font-size: .95rem;
  line-height: 1.7;
  margin-bottom: .75rem;
}
.prerelease-banner a {
  color: var(--cyan);
  text-decoration: underline;
}
.prerelease-banner .prerelease-heart {
  color: var(--text);
  font-style: italic;
  margin-top: 1rem;
}

/* -- Fade-in animation -- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .6s ease-out, transform .6s ease-out;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE ===== */

/* -- Tablet (max 1024px) -- */
@media (max-width: 1024px) {
  .container { padding: 0 1.5rem; }
  .features-grid { grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); }
  .tools-categories { grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); }
  .agents-grid { grid-template-columns: repeat(2, 1fr); }
  .docs-layout { grid-template-columns: 200px 1fr; gap: 2rem; }
  .arch-diagram { font-size: .75rem; padding: 1.25rem; }
  .stats-bar { gap: 2rem; }
}

/* -- Mobile landscape / small tablet (max 768px) -- */
@media (max-width: 768px) {
  .container { padding: 0 1rem; }

  /* Navbar */
  .navbar-links { display: none; }
  .navbar-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(0,0,0,.97);
    padding: 1rem 1.5rem;
    gap: .75rem;
    border-bottom: 1px solid var(--border);
  }
  .navbar-hamburger { display: block; }
  .navbar-logo img { height: 40px; }

  /* Hero */
  .hero { padding-top: 4rem; min-height: auto; padding-bottom: 3rem; }
  .hero-logo { max-width: 260px; margin-bottom: 1.5rem; }
  .hero-cta { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 300px; justify-content: center; }

  /* Install box */
  .install-box { margin: 1.5rem 0 0; }
  .install-cmd { border-radius: 6px; padding: .6rem .75rem; }
  .install-cmd code { font-size: .65rem; word-break: break-all; white-space: normal; }

  /* Stats */
  .stats-bar { gap: 1.25rem; padding: 2rem 0; }
  .stat-item .number { font-size: 1.8rem; }
  .stat-item .label { font-size: .78rem; }

  /* Sections */
  section { padding: 3rem 0; }
  .section-header { margin-bottom: 2rem; }

  /* Grids → single column */
  .features-grid { grid-template-columns: 1fr; gap: 1rem; }
  .tools-categories { grid-template-columns: 1fr; gap: 1.5rem; }
  .agents-grid { grid-template-columns: 1fr; gap: 1rem; }
  .feature-card { padding: 1.5rem; }
  .agent-card { padding: 1.5rem; }
  .skill-item { padding: 1.25rem; }

  /* Architecture */
  .arch-diagram { font-size: .65rem; padding: 1rem; margin: 0; border-radius: 6px; }

  /* Docs layout → stacked */
  .docs-layout { grid-template-columns: 1fr; padding-top: 5rem; gap: 0; }
  .docs-sidebar-toggle { display: block; }
  .docs-sidebar {
    display: none;
    position: static;
    max-height: none;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 6px;
  }
  .docs-sidebar.open { display: block; }
  .docs-content h1 { font-size: 1.5rem; }
  .docs-content h2 { font-size: 1.2rem; margin-top: 2rem; }
  .docs-content h3 { font-size: 1rem; }

  /* Tables → horizontal scroll */
  .docs-content table { display: block; overflow-x: auto; white-space: nowrap; max-width: 100%; -webkit-overflow-scrolling: touch; }
  .code-block { font-size: .8rem; padding: .75rem 1rem; }

  /* Pre-release banner */
  .prerelease-banner { padding: 1.5rem 1.25rem; margin: 0; }
  .prerelease-banner h2 { font-size: 1.15rem; }
  .prerelease-banner p { font-size: .88rem; }

  /* Callout */
  .docs-content .callout { padding: .85rem 1rem; font-size: .88rem; word-wrap: break-word; overflow-wrap: break-word; }
  .docs-content .callout a { word-break: break-all; }

  /* Code blocks */
  .code-block { max-width: 100%; }

  /* Footer */
  .footer-info { flex-direction: column; gap: .75rem; align-items: center; }
  .footer-info span { text-align: center; }
}

/* -- Mobile portrait (max 480px) -- */
@media (max-width: 480px) {
  .container { padding: 0 .75rem; }
  .hero-logo { max-width: 200px; }
  .hero .tagline { font-size: .95rem; }
  .version-badge { font-size: .75rem; padding: .25rem .75rem; }
  .btn { padding: .65rem 1.5rem; font-size: .88rem; }

  .stats-bar {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    padding: 1.5rem 0;
  }
  .stat-item .number { font-size: 1.6rem; }

  .feature-card .icon { font-size: 1.5rem; }
  .feature-card h3 { font-size: 1rem; }
  .feature-card p { font-size: .85rem; }

  .terminal-body { font-size: .7rem; padding: .75rem; line-height: 1.6; }
  .arch-diagram { font-size: .55rem; line-height: 1.4; }
  .code-block { font-size: .75rem; }

  .docs-content .callout { padding: .75rem .85rem; font-size: .82rem; }
  .docs-content th, .docs-content td { padding: .4rem .6rem; font-size: .8rem; }

  /* Pre-release banner */
  .prerelease-banner { padding: 1.25rem 1rem; }
  .prerelease-banner h2 { font-size: 1.05rem; }
  .prerelease-banner p { font-size: .82rem; }

  /* Install command */
  .install-cmd code { font-size: .6rem; }
}

/* -- Very small screens (max 360px) -- */
@media (max-width: 360px) {
  .hero-logo { max-width: 160px; }
  .hero h1 { font-size: 1.5rem; }
  .stat-item .number { font-size: 1.4rem; }
  .terminal-body { font-size: .65rem; }
  .arch-diagram { font-size: .5rem; }
}