/* Ultra-Sender Help — terminal UI (matches cli.js) */

:root {
  --bg: #0a0a0a;
  --bg-elevated: #111111;
  --bg-panel: #0d0d0d;
  --border: #333333;
  --border-cyan: #0891b2;
  --cyan: #22d3ee;
  --cyan-bright: #67e8f9;
  --yellow: #facc15;
  --green: #4ade80;
  --red: #f87171;
  --white: #f5f5f5;
  --gray: #737373;
  --gray-dim: #525252;
  --mono: "JetBrains Mono", "SF Mono", "Fira Code", Consolas, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --sidebar-w: 260px;
  --content-max: 1100px;
  --radius: 4px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--white);
  line-height: 1.55;
  min-height: 100vh;
  font-size: 15px;
  overflow-x: hidden;
}

.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  min-height: 100vh;
  width: 100%;
}

/* ── Sidebar ── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg-elevated);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 50;
  overflow: hidden;
}

.sidebar-header {
  padding: 1rem 0.85rem 0.85rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.brand-box {
  font-family: var(--mono);
  font-size: 0.62rem;
  line-height: 1.35;
  color: var(--cyan);
  white-space: pre;
  margin-bottom: 0.75rem;
  max-width: 100%;
  overflow: hidden;
}

.brand-box .dim { color: var(--gray); }

.brand-title {
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.brand-title svg { color: var(--cyan); flex-shrink: 0; }

.status-panel {
  margin-top: 0.75rem;
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--gray);
  border: 1px solid var(--border);
  padding: 0.45rem 0.55rem;
  line-height: 1.55;
  max-width: 100%;
}

.status-panel .dim { color: var(--gray-dim); }
.status-panel .ok { color: var(--green); }
.status-panel .warn { color: var(--yellow); }
.status-panel .bad { color: var(--red); }

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 0.75rem 0.5rem;
}

.nav-label {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-dim);
  padding: 0.65rem 0.75rem 0.25rem;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.55rem 0.75rem;
  color: var(--gray);
  text-decoration: none;
  font-size: 0.875rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: color 0.12s, background 0.12s, border-color 0.12s;
  cursor: pointer;
}

.nav-link svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.85;
}

.nav-link:hover {
  color: var(--white);
  background: rgba(34, 211, 238, 0.06);
  border-color: var(--border);
}

.nav-link.active {
  color: var(--cyan);
  background: rgba(34, 211, 238, 0.1);
  border-color: var(--border-cyan);
}

.nav-link.active svg { color: var(--cyan); opacity: 1; }

.sidebar-footer {
  padding: 0.75rem 0.85rem;
  border-top: 1px solid var(--border);
  font-size: 0.68rem;
  color: var(--gray-dim);
  font-family: var(--mono);
  flex-shrink: 0;
}

/* ── Main content shell ── */
.content-shell {
  min-width: 0;
  width: 100%;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border-left: 1px solid transparent; /* gutter from sidebar border */
}

.main {
  flex: 1;
  width: 100%;
  min-width: 0;
  padding: 0;
}

.main-inner {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 2rem clamp(1.5rem, 4vw, 3.5rem) 3rem;
}

.page-header {
  margin-bottom: 1.75rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  font-size: 1.35rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.35rem;
}

.page-header h1 svg { color: var(--cyan); width: 24px; height: 24px; }

.page-header .lead {
  color: var(--gray);
  font-size: 0.95rem;
  max-width: 72ch;
}

/* Terminal frame (double cyan border like CLI) */
.term-frame {
  font-family: var(--mono);
  border: 1px solid var(--cyan);
  box-shadow: 0 0 0 1px rgba(34, 211, 238, 0.25);
  margin: 1.25rem 0;
  background: var(--bg-panel);
}

.term-frame-title {
  text-align: center;
  padding: 0.65rem 1rem;
  color: var(--cyan);
  font-size: 0.8rem;
  border-bottom: 1px solid var(--border);
  letter-spacing: 0.02em;
}

.term-frame-body {
  padding: 1rem 1.15rem;
  font-size: 0.8rem;
  line-height: 1.65;
}

.term-frame-body .ok { color: var(--green); }
.term-frame-body .warn { color: var(--yellow); }
.term-frame-body .bad { color: var(--red); }

/* Box menu (cli printMenu style) */
.box-menu {
  border: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.5;
}

.box-menu-header {
  color: var(--cyan);
  font-weight: 600;
  padding: 0.5rem 0.85rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.82rem;
}

.box-menu-row {
  display: grid;
  grid-template-columns: 2rem 1fr auto;
  gap: 0.5rem 0.75rem;
  padding: 0.55rem 0.85rem;
  border-bottom: 1px solid #1a1a1a;
  cursor: pointer;
  align-items: start;
  transition: background 0.12s;
}

.box-menu-row:last-child { border-bottom: none; }

.box-menu-row:hover { background: rgba(255, 255, 255, 0.03); }

.box-menu-row.selected {
  background: rgba(34, 211, 238, 0.08);
  border-left: 2px solid var(--cyan);
  padding-left: calc(0.85rem - 2px);
}

.box-menu-row .num { color: var(--white); font-weight: 600; }
.box-menu-row .label { color: var(--yellow); font-weight: 600; }
.box-menu-row .desc { color: var(--gray); text-align: right; font-size: 0.72rem; }
.box-menu-row.exit-row .label { color: var(--red); }

.menu-detail {
  margin-top: 1rem;
  padding: 1rem 1.15rem;
  border: 1px solid var(--border-cyan);
  background: rgba(34, 211, 238, 0.05);
  font-family: var(--sans);
  font-size: 0.9rem;
  border-radius: var(--radius);
  display: none;
}

.menu-detail.visible { display: block; }

.menu-detail h3 {
  font-size: 0.95rem;
  color: var(--yellow);
  margin-bottom: 0.5rem;
  font-family: var(--mono);
}

.menu-detail p { color: #d4d4d4; margin-bottom: 0.5rem; }

.menu-detail .cmd {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--cyan-bright);
  margin-top: 0.5rem;
}

/* Code block with copy */
.code-block {
  position: relative;
  margin: 1rem 0;
  border: 1px solid var(--border);
  background: #050505;
  border-radius: var(--radius);
}

.code-block pre {
  padding: 1rem 1.15rem;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.6;
  color: #e5e5e5;
}

.code-block .comment { color: var(--gray-dim); }

.code-block .copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--gray);
  font-size: 0.7rem;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: var(--sans);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.code-block .copy-btn:hover {
  color: var(--white);
  border-color: var(--cyan);
}

/* Steps */
.steps { list-style: none; margin: 1rem 0; }

.step {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.25rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid #1a1a1a;
}

.step:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }

.step-num {
  width: 2rem;
  height: 2rem;
  flex-shrink: 0;
  border: 1px solid var(--border-cyan);
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 0.85rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
}

.step-body h3 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.step-body p { color: #a3a3a3; font-size: 0.9rem; }

/* Cards grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.85rem;
  margin: 1.25rem 0;
}

.quick-card {
  border: 1px solid var(--border);
  padding: 1rem;
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.12s, background 0.12s;
  display: block;
}

.quick-card:hover {
  border-color: var(--border-cyan);
  background: rgba(34, 211, 238, 0.04);
}

.quick-card svg { color: var(--cyan); margin-bottom: 0.5rem; }

.quick-card h3 {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.quick-card p { font-size: 0.78rem; color: var(--gray); }

/* Tables */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  margin: 1rem 0;
  border: 1px solid var(--border);
}

.data-table th,
.data-table td {
  border: 1px solid var(--border);
  padding: 0.6rem 0.85rem;
  text-align: left;
}

.data-table th {
  background: #141414;
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 600;
}

.data-table td code {
  font-family: var(--mono);
  font-size: 0.8em;
  color: var(--yellow);
}

.data-table tr:hover td { background: rgba(255,255,255,0.02); }

/* Callouts */
.callout {
  display: flex;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-left: 3px solid var(--cyan);
  margin: 1.25rem 0;
  font-size: 0.9rem;
  background: rgba(34, 211, 238, 0.04);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.callout svg { flex-shrink: 0; color: var(--cyan); margin-top: 0.1rem; }

.callout.warning { border-left-color: var(--yellow); background: rgba(250, 204, 21, 0.05); }
.callout.warning svg { color: var(--yellow); }

.callout.success { border-left-color: var(--green); background: rgba(74, 222, 128, 0.05); }
.callout.success svg { color: var(--green); }

.callout strong { display: block; margin-bottom: 0.25rem; color: var(--white); }

/* Accordion (config) */
.accordion { border: 1px solid var(--border); margin: 1rem 0; }

.accordion-item { border-bottom: 1px solid var(--border); }
.accordion-item:last-child { border-bottom: none; }

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  background: #111;
  border: none;
  color: var(--white);
  font-family: var(--mono);
  font-size: 0.82rem;
  cursor: pointer;
  text-align: left;
}

.accordion-trigger:hover { background: #161616; }

.accordion-trigger .left {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.accordion-trigger svg { color: var(--cyan); width: 16px; height: 16px; }

.accordion-trigger .chevron {
  color: var(--gray);
  transition: transform 0.2s;
}

.accordion-item.open .accordion-trigger .chevron { transform: rotate(180deg); }

.accordion-panel {
  display: none;
  padding: 0 1rem 1rem;
  font-size: 0.88rem;
  color: #a3a3a3;
}

.accordion-item.open .accordion-panel { display: block; }

/* Chips */
.chip {
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.75rem;
  padding: 0.15rem 0.45rem;
  border: 1px solid var(--border);
  color: var(--yellow);
  border-radius: 3px;
  margin: 0.15rem 0.2rem 0.15rem 0;
}

/* Section spacing */
.section { margin-bottom: 2rem; }

.section h2 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--cyan);
  margin-bottom: 0.65rem;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--mono);
}

.section p { color: #a3a3a3; margin-bottom: 0.65rem; font-size: 0.9rem; }

.section ul { margin: 0.5rem 0 0.75rem 1.25rem; color: #a3a3a3; font-size: 0.9rem; }

.inline-code {
  font-family: var(--mono);
  font-size: 0.85em;
  color: var(--yellow);
  background: #141414;
  padding: 0.1em 0.35em;
  border-radius: 3px;
  border: 1px solid var(--border);
}

/* Mobile */
.mobile-toggle {
  display: none;
  position: fixed;
  bottom: 1rem;
  right: 1rem;
  z-index: 70;
  background: var(--cyan);
  color: #000;
  border: none;
  border-radius: 50%;
  width: 48px;
  height: 48px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,0.5);
}

.sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 40;
}

.sidebar-backdrop.visible {
  display: block;
}

@media (max-width: 900px) {
  .app {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    transform: translateX(-100%);
    transition: transform 0.2s ease;
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.5);
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .content-shell {
    width: 100%;
  }

  .main-inner {
    padding: 1.25rem 1rem 2.5rem;
  }

  .mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .box-menu-row {
    grid-template-columns: 2rem 1fr;
  }

  .box-menu-row .desc {
    display: none;
  }
}