/* =========================================================
   nojs Framework Demo — Dark Theme
   GitHub-inspired dark palette, developer-focused design
   ========================================================= */

:root {
  --bg:           #0d1117;
  --sidebar-bg:   #161b22;
  --card-bg:      #161b22;
  --border:       #30363d;
  --text:         #e6edf3;
  --muted:        #8b949e;
  --accent:       #58a6ff;
  --accent-hover: #79c0ff;
  --green:        #3fb950;
  --yellow:       #d29922;
  --red:          #f85149;
  --purple:       #bc8cff;
  --orange:       #ffa657;
  --badge-bg:     #1f6feb;
  --badge-text:   #cae8ff;
  --btn-primary:  #238636;
  --btn-p-hover:  #2ea043;
  --btn-second:   #30363d;
  --btn-s-hover:  #3d444d;
  --btn-danger:   #da3633;
  --btn-d-hover:  #b91c1c;
  --font:         -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --mono:         'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
  --radius:       6px;
  --radius-lg:    12px;
  --shadow:       0 1px 3px rgba(0,0,0,0.4), 0 4px 12px rgba(0,0,0,0.3);
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

/* =====================================================
   APP LAYOUT — sidebar + content grid
   ===================================================== */

#app-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}

/* ---- Sidebar ---- */
.sidebar {
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 16px 16px;
  border-bottom: 1px solid var(--border);
}

.brand-icon {
  font-size: 22px;
}

.brand-tech-logos {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
}

.sidebar-brand-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.brand-tech-logo {
  height: 40px;
  width: auto;
  object-fit: contain;
  flex-shrink: 0;
}

.brand-tech-sep {
  font-size: 11px;
  color: var(--muted);
  line-height: 1;
}

.brand-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.3px;
}

.brand-tagline {
  font-size: 11px;
  color: var(--muted);
  font-family: var(--mono);
}

.sidebar-nav {
  flex: 1;
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-section {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  padding: 12px 8px 4px;
}

.nav-item a,
.sidebar-nav > a {
  display: block;
  padding: 7px 10px;
  border-radius: var(--radius);
  color: var(--muted);
  font-size: 14px;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-item a:hover,
.sidebar-nav > a:hover {
  background: rgba(88, 166, 255, 0.08);
  color: var(--text);
  text-decoration: none;
}

.sidebar-footer {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--muted);
  font-family: var(--mono);
}

/* ---- Main content area ---- */
.content {
  overflow-y: auto;
  min-height: 100vh;
}

/* =====================================================
   PAGE STRUCTURE
   ===================================================== */

.page {
  max-width: 840px;
  margin: 0 auto;
  padding: 48px 32px 80px;
}

.page-header {
  margin-bottom: 40px;
}

.page-header h1 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: -0.5px;
}

.page-header p {
  color: var(--muted);
  font-size: 15px;
  max-width: 600px;
}

.page-body {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

/* ---- Render badge ---- */
.render-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--badge-bg);
  color: var(--badge-text);
  font-size: 12px;
  font-family: var(--mono);
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  margin-bottom: 16px;
}

/* =====================================================
   LANDING PAGE
   ===================================================== */

.hero {
  text-align: center;
  padding: 64px 16px 48px;
}

.hero-logo {
  font-size: 56px;
  margin-bottom: 16px;
}

.hero-title {
  font-size: 48px;
  font-weight: 800;
  letter-spacing: -1.5px;
  background: linear-gradient(135deg, var(--text) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}

.hero-subtitle {
  font-size: 18px;
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 12px;
}

.hero-badges {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 20px;
}

.badge {
  display: inline-flex;
  align-items: center;
  background: var(--card-bg);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 12px;
  font-family: var(--mono);
  padding: 4px 10px;
  border-radius: 20px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  padding: 0 16px 64px;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), var(--shadow);
}

.feature-icon {
  font-size: 28px;
  margin-bottom: 12px;
}

.feature-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.feature-card p {
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 16px;
  line-height: 1.5;
}

.feature-card a {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
}

.feature-card a:hover {
  color: var(--accent-hover);
}

/* =====================================================
   DEMO CONTROLS & WIDGETS
   ===================================================== */

.demo-box {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.demo-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* ---- Buttons ---- */
button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: var(--font);
  font-size: 14px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  white-space: nowrap;
}

.btn-primary {
  background: var(--btn-primary);
  border-color: rgba(240,246,252,0.1);
  color: #fff;
}
.btn-primary:hover { background: var(--btn-p-hover); }

.btn-secondary {
  background: var(--btn-second);
  border-color: var(--border);
  color: var(--text);
}
.btn-secondary:hover { background: var(--btn-s-hover); }

.btn-danger {
  background: var(--btn-danger);
  border-color: rgba(240,246,252,0.1);
  color: #fff;
}
.btn-danger:hover { background: var(--btn-d-hover); }

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--muted);
}
.btn-ghost:hover { background: var(--btn-second); color: var(--text); }

/* ---- Counter widget ---- */
.counter-widget {
  display: flex;
  align-items: center;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  width: fit-content;
}

.counter-widget button {
  background: var(--btn-second);
  border: none;
  border-radius: 0;
  font-size: 22px;
  font-weight: 300;
  color: var(--text);
  width: 52px;
  height: 52px;
  padding: 0;
}
.counter-widget button:hover { background: var(--btn-s-hover); }

.counter-value {
  min-width: 80px;
  text-align: center;
  font-size: 32px;
  font-weight: 700;
  font-family: var(--mono);
  color: var(--accent);
  padding: 0 16px;
  background: var(--bg);
}

/* ---- Live preview ---- */
.live-preview {
  background: var(--bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 16px 20px;
}

.live-preview p { color: var(--text); margin-bottom: 4px; }
.live-preview p:last-child { margin-bottom: 0; }
.live-preview.muted p { color: var(--muted); font-style: italic; }

/* ---- Form elements ---- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label,
.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group select,
.form-input,
.form-select {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  padding: 9px 12px;
  width: 100%;
  max-width: 400px;
  transition: border-color 0.15s, box-shadow 0.15s;
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-input:focus,
.form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.1);
}

.form-group select option {
  background: var(--sidebar-bg);
}

/* ---- Timeline (lifecycle) ---- */
.lifecycle-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.lifecycle-event {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}

.lifecycle-event:last-child { border-bottom: none; }

.lifecycle-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  margin-top: 5px;
  flex-shrink: 0;
}

.dot-green { background: var(--green); box-shadow: 0 0 8px var(--green); }
.dot-blue  { background: var(--accent); box-shadow: 0 0 8px var(--accent); }
.dot-red   { background: var(--red); box-shadow: 0 0 8px var(--red); }

.lifecycle-info h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 2px;
  font-family: var(--mono);
}

.lifecycle-info p { font-size: 13px; color: var(--muted); }

.lifecycle-value {
  margin-top: 4px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
}

/* ---- Conditional panels ---- */
.panel {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  background: var(--card-bg);
}

.panel-success {
  border-color: var(--green);
  background: rgba(63, 185, 80, 0.05);
}

.panel-muted {
  border-color: var(--border);
  background: rgba(139, 148, 158, 0.05);
}

.panel h3 { font-size: 16px; font-weight: 600; margin-bottom: 6px; }
.panel-success h3 { color: var(--green); }
.panel-muted h3 { color: var(--muted); }
.panel p { font-size: 14px; color: var(--muted); }

.alert {
  background: rgba(210, 153, 34, 0.1);
  border: 1px solid var(--yellow);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 14px;
  color: var(--yellow);
}

/* ---- List widget ---- */
.tech-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.tech-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 16px;
  transition: border-color 0.15s;
}

.tech-item:hover { border-color: var(--muted); }

.tech-index {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  min-width: 24px;
}

.tech-name {
  flex: 1;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
}

.empty-state {
  color: var(--muted);
  font-style: italic;
  font-size: 14px;
  padding: 20px 0;
  text-align: center;
}

/* ---- Router params ---- */
.route-display {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  font-family: var(--mono);
}

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

.route-param-value {
  font-size: 36px;
  font-weight: 700;
  color: var(--accent);
  word-break: break-all;
}

.param-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.param-links a {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 14px;
  font-size: 14px;
  font-family: var(--mono);
  transition: border-color 0.15s;
}

.param-links a:hover {
  border-color: var(--accent);
  text-decoration: none;
  color: var(--accent-hover);
}

/* ---- Slots / Modal styles ---- */
.slot-diagram {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
  line-height: 1.8;
}

.slot-highlight { color: var(--purple); }
.slot-tag       { color: var(--green); }
.slot-field     { color: var(--orange); }

.dialog-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.dialog-content {
  background: var(--sidebar-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  min-width: 360px;
  max-width: 500px;
  box-shadow: var(--shadow);
}

.dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.dialog-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

.btn-close {
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 16px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius);
}
.btn-close:hover { background: var(--btn-second); color: var(--text); }

.dialog-body {
  padding: 20px;
}

.dialog-body p {
  font-size: 14px;
  color: var(--text);
  margin-bottom: 8px;
}

.dialog-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 12px 20px;
  border-top: 1px solid var(--border);
}

.btn.btn-secondary {
  background: var(--btn-second);
  border-color: var(--border);
  color: var(--text);
}

.btn.btn-primary {
  background: var(--btn-primary);
  border-color: rgba(240,246,252,0.1);
  color: #fff;
}

/* ---- Code inline ---- */
.code {
  font-family: var(--mono);
  font-size: 13px;
  background: rgba(110, 118, 129, 0.1);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1px 6px;
  color: var(--orange);
}

/* ---- Section labels ---- */
.section-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 12px;
}

/* ---- Highlight span ---- */
.highlight { color: var(--accent); font-weight: 600; font-family: var(--mono); }
.highlight-green  { color: var(--green);  font-weight: 600; }
.highlight-yellow { color: var(--yellow); font-weight: 600; }
.highlight-red    { color: var(--red);    font-weight: 600; }
.highlight-purple { color: var(--purple); font-weight: 600; }