@font-face {
  font-family: 'IBM Plex Sans';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url(fonts/ibm-plex-sans-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'IBM Plex Sans';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url(fonts/ibm-plex-sans-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url(fonts/jetbrains-mono-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400 800;
  font-display: swap;
  src: url(fonts/jetbrains-mono-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

:root {
  --font-body: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --accent: #39ff14;
  --accent-dim: rgba(57, 255, 20, 0.15);
  --accent-mid: rgba(57, 255, 20, 0.35);
  --glow: 0 0 12px rgba(57,255,20,0.25), 0 0 24px rgba(57,255,20,0.1);
  --glow-strong: 0 0 20px rgba(57,255,20,0.5), 0 0 40px rgba(57,255,20,0.2);
}
[data-theme="dark"] {
  --bg: #0a0a0a;
  --bg-alt: #0f1117;
  --bg-card: #141820;
  --bg-card-hover: #1a2030;
  --text: #e6edf3;
  --text-dim: #8b949e;
  --border: rgba(255,255,255,0.06);
  --border-accent: rgba(57,255,20,0.15);
  --nav-bg: rgba(10,10,10,0.92);
  --tag-bg: rgba(57,255,20,0.08);
  --tag-text: #39ff14;
  --tag-border: rgba(57,255,20,0.2);
  --code-bg: #161b22;
  --shadow: 0 2px 16px rgba(0,0,0,0.4);
}
[data-theme="light"] {
  --bg: #fafbfc;
  --bg-alt: #f0f2f5;
  --bg-card: #ffffff;
  --bg-card-hover: #f6f8fa;
  --text: #1a1a2e;
  --text-dim: #57606a;
  --border: rgba(0,0,0,0.08);
  --border-accent: rgba(57,255,20,0.25);
  --nav-bg: rgba(250,251,252,0.92);
  --tag-bg: rgba(57,255,20,0.08);
  --tag-text: #1a7a0a;
  --tag-border: rgba(26,122,10,0.2);
  --code-bg: #f0f2f5;
  --shadow: 0 2px 16px rgba(0,0,0,0.08);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background-color: var(--bg);
  background-image: radial-gradient(circle at 1px 1px, rgba(57,255,20,0.018) 1px, transparent 0);
  background-size: 28px 28px;
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; transition: opacity 0.2s; }
a:hover { opacity: 0.85; }
code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--code-bg);
  padding: 2px 6px;
  border-radius: 4px;
}

/* Scroll Progress */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 2px; z-index: 9999;
  background: var(--accent);
  width: 0;
  transition: width 0.15s;
}

/* Header */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; height: 56px;
}
.nav-logo {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-weight: 700; font-size: 0.9rem;
  color: var(--text); text-decoration: none;
}
.nav-logo:hover { color: var(--accent); opacity: 1; }
.nav-logo-icon { flex-shrink: 0; filter: drop-shadow(0 0 6px rgba(57,255,20,0.4)); }
.nav-links {
  display: flex; align-items: center; gap: 6px;
  list-style: none;
}
.nav-links a {
  font-size: 0.78rem; color: var(--text-dim); padding: 6px 10px;
  border-radius: 6px; transition: color 0.2s, background 0.2s;
}
.nav-links a:hover { color: var(--text); background: var(--accent-dim); opacity: 1; }
.nav-toggle {
  display: none; background: none; border: none; cursor: pointer;
  flex-direction: column; gap: 4px; padding: 4px;
}
.nav-toggle span {
  width: 20px; height: 2px; background: var(--text); border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* Theme Toggle */
.theme-toggle {
  background: none; border: 1px solid var(--border); border-radius: 8px;
  padding: 6px; cursor: pointer; display: flex; align-items: center;
  color: var(--text-dim); transition: color 0.2s, border-color 0.2s;
}
.theme-toggle:hover { color: var(--accent); border-color: var(--border-accent); }
[data-theme="dark"] .icon-sun { display: block; }
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="light"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: block; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 0.78rem; font-weight: 600;
  padding: 10px 20px; border-radius: 8px;
  text-decoration: none; transition: all 0.25s;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--accent); color: #0a0a0a;
  border-color: var(--accent);
}
.btn-primary:hover { opacity: 1; box-shadow: 0 0 20px rgba(57,255,20,0.3); transform: translateY(-1px); }
.btn-outline {
  background: transparent; color: var(--text);
  border-color: var(--border);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); opacity: 1; }

/* Hero */
.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 120px 24px 80px; text-align: center;
  position: relative; overflow: hidden;
  background:
    radial-gradient(ellipse at 25% 50%, rgba(57,255,20,0.05) 0%, transparent 50%),
    radial-gradient(ellipse at 75% 30%, rgba(57,255,20,0.035) 0%, transparent 45%),
    radial-gradient(ellipse at 50% 85%, rgba(57,255,20,0.06) 0%, transparent 40%),
    var(--bg);
}
.hero-content { max-width: 720px; }
.hero-tag {
  font-family: var(--font-mono); font-size: 0.72rem; font-weight: 600;
  color: var(--accent); letter-spacing: 2.5px; text-transform: uppercase;
  margin-bottom: 20px;
}
.hero-logo-wrap {
  display: flex; justify-content: center; margin-bottom: 20px;
}
.cc-logo { filter: drop-shadow(0 0 8px rgba(57,255,20,0.4)); }
.hero-name {
  font-family: var(--font-mono); font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800; letter-spacing: -1px;
  background: linear-gradient(135deg, var(--accent) 0%, #2dd40f 50%, #7fff5e 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}
.hero-subtitle {
  font-size: 1rem; color: var(--text-dim); margin-bottom: 28px;
}
.hero-typed {
  font-family: var(--font-mono); font-size: 0.82rem;
  color: var(--text-dim); margin-bottom: 36px;
  min-height: 1.5em;
}
.hero-prompt { color: var(--accent); }
.hero-cursor {
  display: inline-block; width: 2px; height: 1em;
  background: var(--accent); vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }
.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

/* Sections */
.section { padding: 80px 24px; }
.section-alt { background: var(--bg-alt); }
.container { max-width: 1100px; margin: 0 auto; }
.section-title {
  font-family: var(--font-mono); font-size: 1.6rem; font-weight: 800;
  margin-bottom: 12px;
  background: linear-gradient(135deg, var(--accent), #7fff5e);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-subtitle {
  color: var(--text-dim); font-size: 0.92rem; max-width: 700px;
  margin-bottom: 40px; line-height: 1.7;
}

/* About */
.about-content { max-width: 800px; }
.about-content p { color: var(--text-dim); margin-bottom: 16px; font-size: 0.92rem; }
.about-highlights {
  display: flex; flex-wrap: wrap; gap: 24px; margin-top: 32px;
}
.highlight { text-align: center; }
.highlight-number {
  display: block; font-family: var(--font-mono); font-size: 1.4rem;
  font-weight: 800; color: var(--accent);
}
.highlight-label {
  font-size: 0.72rem; color: var(--text-dim); text-transform: uppercase;
  letter-spacing: 1px;
}

/* Three Pillars */
.pillars-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.pillar-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 12px; padding: 28px;
  transition: border-color 0.3s, transform 0.3s;
}
.pillar-card:hover { border-color: var(--border-accent); transform: translateY(-2px); }
.pillar-icon {
  width: 48px; height: 48px; border-radius: 10px;
  background: var(--accent-dim); display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px; color: var(--accent);
}
.pillar-card h3 {
  font-family: var(--font-mono); font-size: 1.1rem; font-weight: 700;
  margin-bottom: 10px; color: var(--text);
}
.pillar-card p { font-size: 0.82rem; color: var(--text-dim); line-height: 1.7; margin-bottom: 16px; }
.pillar-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.pillar-tags span {
  font-family: var(--font-mono); font-size: 0.62rem;
  padding: 3px 8px; background: var(--tag-bg); color: var(--tag-text);
  border: 1px solid var(--tag-border); border-radius: 4px;
}

/* Firmware Grid */
.fw-category-title {
  font-family: var(--font-mono); font-size: 0.88rem; font-weight: 700;
  color: var(--text-dim); margin: 32px 0 16px;
  padding-bottom: 8px; border-bottom: 1px solid var(--border);
  text-transform: uppercase; letter-spacing: 1px;
}
.firmware-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px;
  margin-bottom: 16px;
}
a.fw-card, a.proto-card { text-decoration: none; color: inherit; display: block; }
.fw-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; padding: 18px;
  transition: border-color 0.3s, transform 0.2s;
}
.fw-card:hover { border-color: var(--border-accent); transform: translateY(-1px); }
.fw-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.fw-card h4 {
  font-family: var(--font-mono); font-size: 0.85rem; font-weight: 700; color: var(--text);
}
.fw-badge {
  font-family: var(--font-mono); font-size: 0.58rem; font-weight: 600;
  padding: 2px 8px; border-radius: 4px; text-transform: uppercase; letter-spacing: 0.5px;
}
.fw-stable { background: rgba(57,255,20,0.1); color: var(--accent); border: 1px solid rgba(57,255,20,0.2); }
.fw-beta { background: rgba(255,200,0,0.1); color: #ffc800; border: 1px solid rgba(255,200,0,0.2); }
.fw-card p { font-size: 0.76rem; color: var(--text-dim); line-height: 1.6; margin-bottom: 12px; }
.fw-meta {
  display: flex; gap: 12px; flex-wrap: wrap;
}
.fw-meta span {
  font-family: var(--font-mono); font-size: 0.62rem; color: var(--text-dim);
}
.fw-meta span::before {
  content: ''; display: inline-block; width: 4px; height: 4px;
  background: var(--accent); border-radius: 50%; margin-right: 6px;
  vertical-align: middle;
}

/* Protocol Grid */
.protocol-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px;
}
.proto-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; padding: 20px;
  transition: border-color 0.3s, transform 0.2s;
}
.proto-card:hover { border-color: var(--border-accent); transform: translateY(-1px); }
.proto-card h4 {
  font-family: var(--font-mono); font-size: 0.85rem; font-weight: 700;
  color: var(--accent); margin-bottom: 8px;
}
.proto-card p { font-size: 0.76rem; color: var(--text-dim); line-height: 1.6; margin-bottom: 12px; }
.proto-meta { display: flex; gap: 6px; flex-wrap: wrap; }
.proto-meta span {
  font-family: var(--font-mono); font-size: 0.6rem;
  padding: 2px 8px; background: var(--tag-bg); color: var(--tag-text);
  border: 1px solid var(--tag-border); border-radius: 4px;
}

/* Security Grid */
.security-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 18px;
}
.sec-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; padding: 24px;
  transition: border-color 0.3s;
}
.sec-card:hover { border-color: var(--border-accent); }
.sec-icon {
  width: 40px; height: 40px; border-radius: 8px;
  background: var(--accent-dim); display: flex; align-items: center; justify-content: center;
  margin-bottom: 14px; color: var(--accent);
}
.sec-card h4 {
  font-family: var(--font-mono); font-size: 0.85rem; font-weight: 700;
  margin-bottom: 8px; color: var(--text);
}
.sec-card p { font-size: 0.78rem; color: var(--text-dim); line-height: 1.7; }

/* Interactive Demo — GUI Mockup */
.gui-modes {
  display: flex; gap: 6px; margin: 24px 0 16px; flex-wrap: wrap;
}
.gui-mode {
  font-family: var(--font-mono); font-size: 0.72rem; font-weight: 600;
  padding: 8px 16px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--bg-card); color: var(--text-dim); cursor: pointer;
  transition: all 0.2s;
}
.gui-mode:hover { border-color: var(--accent); color: var(--text); }
.gui-mode.active { background: rgba(57,255,20,0.08); border-color: var(--accent); color: var(--accent); }
.gui-view { display: none; }
.gui-view.active { display: block; }
.gui-desc {
  font-size: 0.76rem; color: var(--text-dim); margin-top: 12px; line-height: 1.6;
}
.gui-desc strong { color: var(--text); }

/* Window Frame */
.gui-window {
  border: 1px solid #30363d; border-radius: 8px; overflow: hidden;
  background: #0d1117; font-family: var(--font-mono); font-size: 0.7rem;
  color: #c9d1d9;
}
.gui-titlebar {
  display: flex; justify-content: space-between; align-items: center;
  background: #161b22; padding: 6px 12px; border-bottom: 1px solid #21262d;
}
.gui-titlebar-l { display: flex; align-items: center; gap: 8px; }
.gui-titlebar-l span { font-size: 0.68rem; color: #8b949e; }
.gui-win-btns { display: flex; gap: 8px; }
.gui-wb { color: #484f58; font-size: 0.7rem; cursor: default; }
.gui-wb-x:hover { color: #f85149; }
.gui-menubar {
  display: flex; gap: 0; background: #161b22; border-bottom: 1px solid #21262d;
  padding: 0 8px; font-size: 0.65rem; color: #8b949e;
}
.gui-menubar span { padding: 4px 10px; cursor: default; }
.gui-menubar span:hover { background: rgba(57,255,20,0.06); color: #c9d1d9; }

/* Body: Sidebar + Main */
.gui-body { display: flex; min-height: 340px; }
.gui-body-nosb { flex-direction: column; }
.gui-sidebar {
  width: 160px; min-width: 160px; background: #0d1117;
  border-right: 1px solid #21262d; padding: 12px 10px;
  display: flex; flex-direction: column; gap: 8px;
}
.gui-sb-logo { text-align: center; padding: 4px 0; }
.gui-sb-status {
  font-size: 0.62rem; color: #39ff14; display: flex; align-items: center; gap: 6px;
}
.gui-dot {
  width: 6px; height: 6px; background: #39ff14; border-radius: 50%;
  box-shadow: 0 0 4px #39ff14; display: inline-block;
}
.gui-sb-count { font-size: 0.6rem; color: #484f58; }
.gui-sb-list { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.gui-sb-dev {
  font-size: 0.62rem; padding: 4px 6px; border-radius: 4px;
  color: #8b949e; cursor: default;
}
.gui-sb-dev.active { background: rgba(57,255,20,0.08); color: #39ff14; }
.gui-sb-btns { display: flex; flex-direction: column; gap: 3px; }
.gui-sb-btn {
  font-size: 0.58rem; padding: 4px 6px; background: #21262d; border-radius: 3px;
  color: #8b949e; text-align: center; cursor: default;
}
.gui-sb-scan { color: #39ff14; border: 1px solid rgba(57,255,20,0.2); }

/* Main Content */
.gui-main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.gui-tabbar {
  display: flex; background: #161b22; border-bottom: 1px solid #21262d;
  overflow-x: auto; gap: 0;
}
.gui-tab {
  font-family: var(--font-mono); font-size: 0.62rem; font-weight: 600;
  padding: 7px 12px; color: #484f58; cursor: pointer;
  border-bottom: 2px solid transparent; white-space: nowrap;
  transition: color 0.15s;
}
.gui-tab:hover { color: #8b949e; }
.gui-tab.active { color: #39ff14; border-bottom-color: #39ff14; }
.gui-pane { display: none; padding: 12px; flex: 1; overflow-y: auto; }
.gui-pane.active { display: block; }

/* Form Elements */
.gui-card {
  background: #161b22; border: 1px solid #21262d; border-radius: 6px;
  padding: 10px 12px; margin-bottom: 8px;
}
.gui-row {
  display: flex; align-items: center; gap: 8px; padding: 3px 0;
}
.gui-lbl { color: #39ff14; font-size: 0.62rem; min-width: 65px; }
.gui-sel {
  background: #0d1117; border: 1px solid #30363d; border-radius: 4px;
  padding: 3px 8px; font-size: 0.62rem; color: #c9d1d9; flex: 1;
  display: flex; justify-content: space-between;
}
.caret { color: #484f58; }
.gui-sm-btn {
  background: #21262d; border: 1px solid #30363d; border-radius: 3px;
  padding: 2px 6px; color: #8b949e; font-size: 0.62rem; cursor: default;
}
.gui-dms-card { border-color: rgba(248,131,62,0.35); }
.gui-chk { font-size: 0.7rem; }
.gui-chk.on { color: #39ff14; }
.gui-dms-sub { font-size: 0.58rem; color: #484f58; }
.gui-settings-hd { color: #39ff14; font-size: 0.65rem; font-weight: 700; margin-bottom: 6px; }

/* Progress Bar */
.gui-bar {
  background: #21262d; border-radius: 4px; height: 16px; position: relative;
  margin: 8px 0 4px; overflow: hidden;
}
.gui-bar-fill {
  background: linear-gradient(90deg, #39ff14, #2ea043); height: 100%;
  border-radius: 4px; transition: width 0.3s;
}
.gui-bar span {
  position: absolute; right: 8px; top: 1px; font-size: 0.58rem; color: #c9d1d9;
}
.gui-bar-msg { font-size: 0.58rem; color: #484f58; margin-bottom: 8px; }

/* Action Buttons */
.gui-btns { display: flex; gap: 6px; flex-wrap: wrap; }
.gui-abtn {
  font-family: var(--font-mono); font-size: 0.6rem; font-weight: 600;
  padding: 5px 12px; border-radius: 4px; cursor: default;
  background: #21262d; color: #8b949e; border: 1px solid #30363d;
}
.gui-abtn.primary { background: rgba(57,255,20,0.12); color: #39ff14; border-color: rgba(57,255,20,0.3); }
.gui-abtn.danger { background: rgba(248,81,73,0.1); color: #f85149; border-color: rgba(248,81,73,0.3); }

/* Terminal Output */
.gui-term {
  background: #010409; border: 1px solid #21262d; border-radius: 4px;
  padding: 10px 12px; font-size: 0.62rem; line-height: 1.7;
  min-height: 200px; overflow-y: auto;
}
.ta { color: #39ff14; }
.td { color: #484f58; }
.tw { color: #ffc800; }
.tc { color: #58a6ff; }
.gui-cmd {
  background: #010409; border: 1px solid #21262d; border-top: none;
  border-radius: 0 0 4px 4px; padding: 6px 12px; font-size: 0.62rem;
}
.gui-cursor { color: #39ff14; animation: blink 1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* Health Gauges */
.gui-gauges { display: flex; gap: 20px; justify-content: center; padding: 16px; flex-wrap: wrap; }
.gui-gauge { text-align: center; }
.gui-gauge-arc {
  width: 72px; height: 72px; border-radius: 50%; display: flex;
  align-items: center; justify-content: center;
  background: conic-gradient(#39ff14 calc(var(--pct) * 1%), #21262d calc(var(--pct) * 1%));
  position: relative;
}
.gui-gauge-arc::before {
  content: ''; position: absolute; inset: 6px; border-radius: 50%; background: #0d1117;
}
.gui-gauge-arc span {
  position: relative; z-index: 1; font-size: 0.65rem; font-weight: 700; color: #39ff14;
}
.gui-gauge-lbl { font-size: 0.58rem; color: #484f58; margin-top: 4px; }

/* Split Layout (Cross-Comm, Macros) */
.gui-split { display: flex; gap: 1px; background: #21262d; border-radius: 4px; overflow: hidden; }
.gui-split-l, .gui-split-r { flex: 1; background: #0d1117; padding: 10px 12px; }
.gui-split-l { max-width: 200px; }
.gui-split-hd { font-size: 0.62rem; color: #39ff14; font-weight: 700; margin-bottom: 6px; }
.gui-split-item {
  font-size: 0.6rem; padding: 3px 6px; color: #484f58; border-radius: 3px;
}
.gui-split-item.active { color: #c9d1d9; background: rgba(57,255,20,0.06); }

/* Target Table */
.gui-tbl {
  width: 100%; border-collapse: collapse; font-size: 0.6rem;
}
.gui-tbl th {
  text-align: left; padding: 5px 8px; color: #39ff14; font-weight: 600;
  border-bottom: 1px solid #21262d; font-size: 0.58rem;
}
.gui-tbl td { padding: 4px 8px; border-bottom: 1px solid #161b22; }
.gui-tbl tbody tr:hover { background: rgba(57,255,20,0.04); }
.rssi-g { color: #39ff14; }
.rssi-m { color: #ffc800; }
.rssi-w { color: #f85149; }
.gui-tbl-ft { font-size: 0.58rem; color: #484f58; padding: 6px 8px; }

/* Bottom Persistent Terminal */
.gui-bottom {
  display: flex; border-top: 1px solid #21262d; min-height: 90px;
}
.gui-bot-devs {
  width: 120px; min-width: 120px; border-right: 1px solid #21262d;
  padding: 6px 8px; font-size: 0.58rem;
}
.gui-bot-hd { color: #39ff14; font-weight: 700; font-size: 0.58rem; margin-bottom: 4px; }
.gui-bot-dev { padding: 1px 0; color: #8b949e; }
.gui-bot-term { flex: 1; padding: 6px 10px; font-size: 0.58rem; }
.gui-bot-lines { line-height: 1.6; }

/* Status Bar (Tkinter) */
.gui-statusbar {
  background: #161b22; border-top: 1px solid #21262d;
  padding: 4px 12px; font-size: 0.58rem; color: #484f58;
}

/* TUI Mode */
.gui-window-tui { background: #000; }
.gui-tui-chrome {
  background: #111; padding: 6px 12px; font-size: 0.6rem;
  color: #39ff14; border-bottom: 1px solid #333;
}
.gui-tui-body {
  display: flex; min-height: 260px; font-size: 0.62rem; line-height: 1.6;
}
.gui-tui-left {
  flex: 1; padding: 8px 12px; border-right: 1px solid #333;
}
.gui-tui-right {
  width: 180px; padding: 8px 12px; color: #8b949e;
}
.gui-tui-hd { color: #39ff14; font-weight: 700; margin-bottom: 4px; font-size: 0.62rem; }
.gui-tui-input {
  padding: 4px 12px; font-size: 0.62rem; border-top: 1px solid #333;
}
.gui-tui-footer {
  background: #111; padding: 3px 12px; font-size: 0.55rem;
  color: #484f58; border-top: 1px solid #333;
}
.gui-tui-view { display: none; }
.gui-tui-view.active { display: block; }
.gui-tui-key { cursor: pointer; transition: color 0.2s; }
.gui-tui-key.active { text-decoration: underline; text-underline-offset: 2px; }

/* Browser Chrome (Web Remote) */
.gui-browser-bar {
  display: flex; align-items: center; gap: 10px;
  background: #1e1e1e; padding: 8px 12px; border-bottom: 1px solid #333;
}
.gui-browser-dots { display: flex; gap: 5px; }
.gui-browser-dots span {
  width: 10px; height: 10px; border-radius: 50%;
}
.gui-browser-dots span:nth-child(1) { background: #f85149; }
.gui-browser-dots span:nth-child(2) { background: #ffc800; }
.gui-browser-dots span:nth-child(3) { background: #39ff14; }
.gui-browser-url {
  flex: 1; background: #0d1117; border: 1px solid #30363d; border-radius: 4px;
  padding: 3px 10px; font-size: 0.6rem; color: #8b949e;
}
.gui-web-nav {
  display: flex; gap: 0; background: #161b22; border-bottom: 1px solid #21262d;
  padding: 0 8px; font-size: 0.62rem; color: #484f58;
}
.gui-web-nav span { padding: 6px 14px; cursor: pointer; transition: color 0.2s; }
.gui-web-nav span.active { color: #39ff14; border-bottom: 2px solid #39ff14; }
.gui-web-view { display: none; }
.gui-web-view.active { display: block; }
.gui-web-body { padding: 16px; min-height: 180px; }
.gui-web-stats { display: flex; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.gui-web-stat {
  background: #161b22; border: 1px solid #21262d; border-radius: 6px;
  padding: 10px 16px; text-align: center; flex: 1; min-width: 80px;
}
.gui-web-stat .ta { font-size: 1.2rem; font-weight: 700; display: block; }
.gui-web-stat .td { font-size: 0.58rem; }
.gui-web-recent {
  background: #161b22; border: 1px solid #21262d; border-radius: 6px;
  padding: 10px 14px; font-size: 0.62rem; line-height: 1.7;
}

/* Responsive */
@media (max-width: 768px) {
  .gui-sidebar { display: none; }
  .gui-tui-right { display: none; }
  .gui-bot-devs { width: 80px; min-width: 80px; }
  .gui-split { flex-direction: column; }
  .gui-split-l { max-width: none; }
}

/* Ecosystem Grid */
.eco-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 14px;
}
.eco-card {
  display: block; background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; padding: 20px; text-decoration: none;
  transition: border-color 0.3s, transform 0.2s;
  position: relative;
}
.eco-card:hover { border-color: var(--border-accent); transform: translateY(-2px); opacity: 1; }
.eco-card h4 {
  font-family: var(--font-mono); font-size: 0.85rem; font-weight: 700;
  color: var(--text); margin-bottom: 8px;
}
.eco-card p { font-size: 0.76rem; color: var(--text-dim); line-height: 1.6; margin-bottom: 10px; }
.eco-version {
  font-family: var(--font-mono); font-size: 0.62rem; font-weight: 600;
  padding: 2px 8px; background: var(--tag-bg); color: var(--tag-text);
  border: 1px solid var(--tag-border); border-radius: 4px;
}

/* Contact */
.contact-text { color: var(--text-dim); font-size: 0.92rem; margin-bottom: 28px; }
.contact-links { display: flex; gap: 16px; flex-wrap: wrap; }
.contact-link {
  display: flex; align-items: center; gap: 10px;
  font-size: 0.85rem; color: var(--text); padding: 12px 20px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 10px; transition: border-color 0.3s;
}
.contact-link:hover { border-color: var(--accent); color: var(--accent); opacity: 1; }

/* Footer */
.footer {
  text-align: center; padding: 32px 24px;
  border-top: 1px solid var(--border);
  font-size: 0.78rem; color: var(--text-dim);
}
.footer a { color: var(--accent); }
.footer-legal { margin-top: 8px; font-size: 0.7rem; }
.footer-legal a { color: var(--text-dim); }

/* Scroll Reveal */
.reveal {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* Mobile */
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links {
    display: none; position: absolute; top: 56px; left: 0; right: 0;
    background: var(--nav-bg); backdrop-filter: blur(12px);
    flex-direction: column; padding: 16px 24px; gap: 4px;
    border-bottom: 1px solid var(--border);
  }
  .nav-links.open { display: flex; }
  .pillars-grid { grid-template-columns: 1fr; }
  .firmware-grid { grid-template-columns: 1fr; }
  .security-grid { grid-template-columns: 1fr; }
  .protocol-grid { grid-template-columns: 1fr; }
  .eco-grid { grid-template-columns: 1fr; }
  .hero { padding: 100px 20px 60px; }
  .hero-actions { flex-direction: column; align-items: center; }
  .about-highlights { gap: 16px; }
  .contact-links { flex-direction: column; }
  .gui-modes { gap: 4px; }
  .gui-mode { padding: 6px 10px; font-size: 0.65rem; }
}
@media (max-width: 480px) {
  .section { padding: 60px 16px; }
  .hero-name { font-size: 1.8rem; }
}

/* ═══ Animations & Enhancements ══════════════════════════════════ */

@keyframes hero-fade-in {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes pulse-glow {
  0%, 100% { filter: drop-shadow(0 0 4px rgba(57,255,20,0.3)); }
  50% { filter: drop-shadow(0 0 10px rgba(57,255,20,0.55)); }
}
@keyframes scan-sweep {
  from { transform: translateX(-100%); }
  to { transform: translateX(100%); }
}
@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 4px #39ff14; }
  50% { box-shadow: 0 0 8px #39ff14, 0 0 16px rgba(57,255,20,0.25); }
}

/* Hero Stagger */
.hero-content > * {
  opacity: 0;
  animation: hero-fade-in 0.7s ease forwards;
}
.hero-content > *:nth-child(1) { animation-delay: 0.1s; }
.hero-content > *:nth-child(2) { animation-delay: 0.2s; }
.hero-content > *:nth-child(3) { animation-delay: 0.35s; }
.hero-content > *:nth-child(4) { animation-delay: 0.5s; }
.hero-content > *:nth-child(5) { animation-delay: 0.65s; }
.hero-content > *:nth-child(6) { animation-delay: 0.8s; }

/* Hero Scanline Overlay */
.hero::after {
  content: '';
  position: absolute; inset: 0;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 2px,
    rgba(57,255,20,0.01) 2px, rgba(57,255,20,0.01) 4px
  );
  pointer-events: none;
}
.hero-content { position: relative; z-index: 1; }

/* Logo Breathing */
.nav-logo-icon { animation: pulse-glow 3s ease-in-out infinite; }
.cc-logo { animation: pulse-glow 4s ease-in-out infinite; }

/* Scroll Progress */
.scroll-progress { box-shadow: 0 0 6px rgba(57,255,20,0.4); }

/* Header Scroll State */
.header { transition: border-color 0.3s, box-shadow 0.3s; }
.header.scrolled {
  border-bottom-color: var(--border-accent);
  box-shadow: 0 1px 10px rgba(57,255,20,0.04);
}

/* Card Hover Glow */
.pillar-card:hover, .fw-card:hover, .proto-card:hover,
.sec-card:hover, .eco-card:hover {
  box-shadow: 0 0 16px rgba(57,255,20,0.08), 0 4px 12px rgba(0,0,0,0.25);
}

/* Section Title */
.section-title { transition: text-shadow 0.3s; cursor: default; }

/* Stat Numbers */
.highlight-number {
  text-shadow: 0 0 6px rgba(57,255,20,0.2);
  font-variant-numeric: tabular-nums;
}
.highlight { transition: transform 0.3s; cursor: default; }
.highlight:hover { transform: translateY(-2px); }

/* Primary Button Sweep */
.btn-primary { position: relative; overflow: hidden; }
.btn-primary::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  transform: translateX(-100%);
}
.btn-primary:hover::after { animation: scan-sweep 0.5s ease-out; }

/* GUI Status Dot */
.gui-dot { animation: pulse-dot 2s ease-in-out infinite; }

/* Section Divider */
.section-alt { border-top: 1px solid transparent; border-image: linear-gradient(90deg, transparent, var(--accent-mid), transparent) 1; }

/* Proto Card Title */
.proto-card h4 { text-shadow: 0 0 4px rgba(57,255,20,0.12); }

/* Contact Hover */
.contact-link:hover { box-shadow: 0 0 12px rgba(57,255,20,0.06); }

/* Footer Gradient */
.footer { border-image: linear-gradient(90deg, transparent, rgba(57,255,20,0.2), transparent) 1; }

/* Active Nav */
.nav-links a.nav-active {
  color: var(--accent) !important;
  text-shadow: 0 0 6px rgba(57,255,20,0.25);
}

/* Downloads Section */
.dl-release-info { min-height: 200px; }
.dl-loading {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 16px; padding: 60px 0; color: var(--text-dim); font-size: 0.88rem;
}
.dl-spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: dlSpin 0.8s linear infinite;
}
@keyframes dlSpin { to { transform: rotate(360deg); } }
.dl-error { text-align: center; padding: 48px 0; }
.dl-error p { color: var(--text-dim); font-size: 0.92rem; margin-bottom: 20px; }
.dl-error a { color: var(--accent); }
.dl-release-block { padding: 32px 0; border-bottom: 1px solid var(--border); }
.dl-release-block:last-of-type { border-bottom: none; }
.dl-release-block:not(.dl-release-latest) { opacity: 0.7; }
.dl-release-block:not(.dl-release-latest):hover { opacity: 1; }
.dl-release-header { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.dl-version-tag {
  font-family: var(--font-mono); font-size: 0.8rem; font-weight: 700;
  color: var(--accent); background: var(--accent-dim);
  border: 1px solid rgba(57,255,20,0.2); padding: 4px 12px; border-radius: 6px;
}
.dl-release-latest .dl-version-tag::after {
  content: 'Latest'; margin-left: 8px;
  font-size: 0.65rem; font-weight: 700; text-transform: uppercase; letter-spacing: 1px;
  color: var(--accent); border: 1px solid var(--accent); padding: 2px 8px; border-radius: 4px;
}
.dl-release-date { font-size: 0.82rem; color: var(--text-dim); }
.dl-release-name { font-size: 1.05rem; font-weight: 600; margin-bottom: 24px; }
.dl-assets-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px; margin-bottom: 28px;
}
.dl-asset-card {
  display: flex; flex-direction: column; gap: 8px; padding: 18px 20px;
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px;
  text-decoration: none; color: var(--text); transition: all 0.25s ease;
}
.dl-asset-card:hover {
  border-color: rgba(57,255,20,0.2); transform: translateY(-2px);
  box-shadow: 0 0 16px rgba(57,255,20,0.06), 0 4px 12px rgba(0,0,0,0.25);
}
.dl-asset-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.dl-os-badge {
  font-family: var(--font-mono); font-size: 0.68rem; font-weight: 600;
  padding: 3px 9px; border-radius: 6px; text-transform: uppercase; letter-spacing: 0.5px;
}
.os-win { background: rgba(59,130,246,0.12); color: #60a5fa; border: 1px solid rgba(59,130,246,0.2); }
.os-linux { background: rgba(249,115,22,0.12); color: #fb923c; border: 1px solid rgba(249,115,22,0.2); }
.os-mac { background: rgba(156,163,175,0.12); color: #9ca3af; border: 1px solid rgba(156,163,175,0.2); }
.os-arm { background: rgba(236,72,153,0.12); color: #f472b6; border: 1px solid rgba(236,72,153,0.2); }
.os-archive { background: var(--accent-dim); color: var(--accent); border: 1px solid rgba(57,255,20,0.2); }
.dl-asset-size { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-dim); }
.dl-asset-name { font-family: var(--font-mono); font-size: 0.82rem; font-weight: 600; word-break: break-all; }
.dl-asset-downloads { font-size: 0.72rem; color: var(--text-dim); }
.dl-source-links { display: flex; align-items: center; gap: 10px; margin-bottom: 32px; flex-wrap: wrap; }
.dl-source-label { font-size: 0.82rem; color: var(--text-dim); font-weight: 500; }
.btn-sm { padding: 7px 16px; font-size: 0.8rem; }
.dl-older-toggle { display: block; margin: 24px auto; cursor: pointer; }
.dl-release-notes { border-top: 1px solid var(--border); padding-top: 28px; }
.dl-release-notes h3 { font-family: var(--font-mono); font-size: 0.95rem; font-weight: 700; margin-bottom: 16px; }
.dl-release-notes-body { font-size: 0.88rem; color: var(--text-dim); line-height: 1.75; }
.dl-release-notes-body h3 { font-size: 0.9rem; color: var(--text); margin-top: 20px; margin-bottom: 10px; }
.dl-release-notes-body h4 { font-family: var(--font-mono); font-size: 0.85rem; font-weight: 600; color: var(--text); margin-top: 16px; margin-bottom: 8px; }
.dl-release-notes-body code { font-family: var(--font-mono); font-size: 0.8rem; background: var(--accent-dim); padding: 2px 6px; border-radius: 4px; border: 1px solid rgba(57,255,20,0.15); }
.dl-release-notes-body ul { list-style: none; padding: 0; margin: 8px 0; }
.dl-release-notes-body li { padding: 3px 0 3px 16px; position: relative; }
.dl-release-notes-body li::before { content: '-'; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.dl-release-notes-body a { color: var(--accent); text-decoration: none; }
.dl-release-notes-body a:hover { text-decoration: underline; }
@media (max-width: 768px) { .dl-assets-grid { grid-template-columns: 1fr; } }

/* Reveal Stagger (applied via JS) */
.reveal-stagger { transition-delay: var(--stagger-delay, 0s); }

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  .hero-content > * { animation: none; opacity: 1; }
  .nav-logo-icon, .cc-logo, .gui-dot { animation: none; }
  .reveal { transition: none; opacity: 1; transform: none; }
}