/* ==========================================================================
   signageascode.com — stylesheet
   System fonts only. Manifesto-discipline: the page should embody what it
   preaches. No third-party font CDNs (the page itself shouldn't go dark
   when fonts.googleapis.com hiccups).
   ========================================================================== */

:root {
  --bg: #050505;
  --bg-1: #0a0a0a;
  --bg-2: #111114;
  --line: #1c1c20;
  --line-2: #2a2a30;
  --text: #f4f4f5;
  --text-2: #a1a1a8;
  --text-3: #5a5a62;
  --text-4: #3a3a40;
  --accent: #ff6b1a;
  --accent-2: #ffa15c;
  --accent-soft: rgba(255, 107, 26, 0.08);
  --accent-glow: rgba(255, 107, 26, 0.35);
  --green: #4ade80;
  --red: #ef4444;
  --t-kw: #c084fc;
  --t-fn: #fbbf24;
  --t-str: #86efac;
  --t-id: #e4e4e7;
  --t-c: #6b7280;
  --t-num: #fdba74;
  --maxw: 1280px;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  letter-spacing: -0.011em;
}

body {
  background-image:
    radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.025) 1px, transparent 0);
  background-size: 4px 4px;
  background-attachment: fixed;
  overflow-x: hidden;
  line-height: 1.55;
}

a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
p { margin: 0 0 1rem; }
p:last-child { margin: 0; }
em { font-style: italic; color: var(--accent-2); }
code {
  font-family: var(--mono);
  font-size: 0.9em;
  color: var(--accent-2);
  background: rgba(255, 107, 26, 0.06);
  padding: 0.1em 0.4em;
  border-radius: 4px;
  border: 1px solid var(--line);
}
::selection { background: var(--accent); color: #fff; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 2rem;
}

/* ==========================================================================
   TOPBAR
   ========================================================================== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: rgba(5, 5, 5, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.topbar-inner {
  display: flex;
  align-items: center;
  gap: 2rem;
  padding-top: 0.9rem;
  padding-bottom: 0.9rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--mono);
  font-size: 0.92rem;
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.brand-dot {
  width: 8px;
  height: 8px;
  border-radius: 1px;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent-glow);
  flex-shrink: 0;
}
.brand-sigil { color: var(--accent); }
.primary {
  display: flex;
  gap: 1.75rem;
  margin-left: auto;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text-2);
}
.primary a {
  transition: color 0.15s;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}
.primary a:hover { color: var(--text); border-bottom-color: var(--accent); }

/* ==========================================================================
   SHARED SECTION SCAFFOLD
   ========================================================================== */
section {
  padding: 7rem 0;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.section-eyebrow, .eyebrow {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.section-eyebrow::before, .eyebrow::before {
  content: "";
  width: 16px;
  height: 1px;
  background: var(--accent);
}
.section-title {
  font-size: clamp(1.85rem, 3.5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.028em;
  line-height: 1.1;
  margin: 0 0 1.25rem;
  max-width: 880px;
}
.section-title em {
  font-style: normal;
  color: var(--accent);
}
.section-sub {
  font-size: 1.1rem;
  color: var(--text-2);
  max-width: 720px;
  margin: 0 0 3.5rem;
  line-height: 1.55;
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  padding: 6rem 0 7rem;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 4rem;
  align-items: center;
}
.hero-copy { min-width: 0; }
.hero-title {
  font-size: clamp(2.5rem, 5.5vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.02;
  margin: 0 0 1.75rem;
}
.hero-title em {
  font-style: normal;
  color: var(--accent);
  text-shadow: 0 0 28px var(--accent-glow);
}
.hero-lede {
  font-size: 1.2rem;
  color: var(--text-2);
  line-height: 1.55;
  margin: 0 0 2.5rem;
  max-width: 540px;
}
.hero-lede strong {
  color: var(--text);
  font-weight: 600;
}
.hero-ctas {
  display: flex;
  gap: 0.85rem;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.85rem 1.35rem;
  border-radius: 8px;
  font-family: var(--mono);
  font-size: 0.92rem;
  transition: all 0.15s ease;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary {
  background: var(--accent);
  color: #0a0a0a;
  border-color: var(--accent);
  box-shadow: 0 0 32px var(--accent-glow);
}
.btn-primary:hover {
  background: var(--accent-2);
  border-color: var(--accent-2);
  transform: translateY(-1px);
}
.btn-ghost {
  border-color: var(--line-2);
  color: var(--text);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.arrow { transition: transform 0.15s; }
.btn:hover .arrow { transform: translateX(2px); }

/* ==========================================================================
   DEMO (editor + TV)
   ========================================================================== */
.demo {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  min-width: 0;
}
.demo-tabs {
  display: flex;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.85rem;
}
.tab {
  display: inline-flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.55rem 0.95rem;
  border: 1px solid var(--line-2);
  border-radius: 6px;
  color: var(--text-2);
  background: var(--bg-1);
  transition: all 0.15s;
}
.tab:hover { border-color: var(--text-3); color: var(--text); }
.tab.is-active {
  border-color: var(--accent);
  color: var(--text);
  background: var(--accent-soft);
}
.tab-glyph { color: var(--accent); font-size: 1.05rem; }
.tab-sub { font-size: 0.72rem; color: var(--text-3); }
.tab.is-active .tab-sub { color: var(--text-2); }

.editor {
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.4);
}
.editor-chrome {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.65rem 0.85rem;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-3);
}
.dots {
  display: flex;
  gap: 0.4rem;
}
.dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--line-2);
}
.editor-file {
  flex-grow: 1;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-2);
}
.editor-status {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  border: 1px solid var(--line-2);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.editor-status .status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-3);
}
.editor-status[data-state="idle"] .status-dot { background: var(--text-3); }
.editor-status[data-state="typing"] {
  border-color: var(--accent-2);
  color: var(--accent-2);
}
.editor-status[data-state="typing"] .status-dot {
  background: var(--accent-2);
  box-shadow: 0 0 8px var(--accent-glow);
  animation: pulse 0.9s infinite;
}
.editor-status[data-state="deploying"] {
  border-color: var(--accent);
  color: var(--accent);
}
.editor-status[data-state="deploying"] .status-dot {
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
  animation: pulse 0.6s infinite;
}
.editor-status[data-state="live"] {
  border-color: var(--green);
  color: var(--green);
}
.editor-status[data-state="live"] .status-dot { background: var(--green); }
.editor-status[data-state="offline"] {
  border-color: var(--red);
  color: var(--red);
}
.editor-status[data-state="offline"] .status-dot { background: var(--red); }
@keyframes pulse { 50% { opacity: 0.35; } }

.code {
  margin: 0;
  padding: 1.4rem 1.4rem 1.7rem;
  font-family: var(--mono);
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--text-id, var(--text-2));
  white-space: pre-wrap;
  word-break: break-word;
  min-height: 13rem;
}
.code .t-kw { color: var(--t-kw); }
.code .t-fn { color: var(--t-fn); }
.code .t-str { color: var(--t-str); }
.code .t-id { color: var(--t-id); }
.code .t-c { color: var(--t-c); }
.code .t-num { color: var(--t-num); }
.code .caret {
  display: inline-block;
  width: 8px;
  height: 1.05em;
  background: var(--accent);
  vertical-align: text-bottom;
  margin-left: 1px;
  animation: blink 1.1s steps(2, end) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* SCREEN ROOM */
.screen-room {
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.25rem 1.25rem 1.4rem;
}
.room-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  margin-bottom: 1.1rem;
}
.room-label {
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.04em;
}
.room-meta { color: var(--text-3); }
.tv-stage {
  position: relative;
  display: flex;
  align-items: center;
  gap: 1rem;
}
.connection {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  width: 80px;
  position: relative;
}
.conn-line {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 80px;
  height: 2px;
  background: var(--green);
  box-shadow: 0 0 8px rgba(74, 222, 128, 0.5);
  transform: translate(-50%, -50%);
  z-index: 1;
  transition: all 0.3s;
}
.connection.is-cut .conn-line {
  background: var(--red);
  box-shadow: 0 0 8px rgba(239, 68, 68, 0.5);
  width: 32px;
}
.connection.is-cut .conn-line::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 100%;
  width: 32px;
  height: 2px;
  background: var(--red);
  box-shadow: 0 0 8px rgba(239, 68, 68, 0.5);
  transform: translate(16px, -50%);
}
.conn-btn {
  position: relative;
  z-index: 2;
  padding: 0.35rem 0.6rem;
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-2);
  letter-spacing: 0.04em;
  white-space: nowrap;
  text-transform: lowercase;
  transition: all 0.15s;
}
.conn-btn:hover {
  border-color: var(--red);
  color: var(--red);
}
.connection.is-cut .conn-btn {
  border-color: var(--green);
  color: var(--green);
}
.connection.is-cut .conn-btn-text::before { content: "reconnect"; }
.connection.is-cut .conn-btn-text { visibility: hidden; }
.connection.is-cut .conn-btn-text::before { visibility: visible; position: absolute; left: 50%; transform: translateX(-50%); }

.tv {
  flex-grow: 1;
  position: relative;
  aspect-ratio: 16 / 10;
  background: #000;
  border: 8px solid #1a1a1d;
  border-radius: 10px;
  overflow: hidden;
  box-shadow:
    0 0 0 1px var(--line),
    0 20px 50px rgba(0, 0, 0, 0.5),
    inset 0 0 60px rgba(0, 0, 0, 0.6);
}
.tv-frame {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.tv-content {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.3s;
}
.tv-led {
  position: absolute;
  bottom: -3px;
  right: 12px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
}
.connection.is-cut ~ .tv .tv-led,
.tv.is-offline .tv-led {
  background: var(--accent-2);
  box-shadow: 0 0 6px var(--accent-2);
}
.tv-caption {
  margin-top: 0.85rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-3);
  transition: color 0.3s;
}
.tv-caption.is-offline { color: var(--accent-2); }

/* TV CONTENT — slide layouts */
.slide {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 1.5rem 1.75rem;
  text-align: left;
  color: #fff;
  position: relative;
  background-size: 4px 4px;
  background-image: radial-gradient(circle at 1px 1px, rgba(255, 255, 255, 0.04) 1px, transparent 0);
}
.slide-bind { background: linear-gradient(135deg, #1a0e07 0%, #050505 100%); }
.slide-comet {
  background: linear-gradient(135deg, #ff6b1a 0%, #8a3a0e 60%, #2a1305 100%);
}
.slide-comet::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.18), transparent 60%);
  pointer-events: none;
}
.slide-eyebrow {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 0.55rem;
  position: relative;
}
.slide-headline {
  font-size: clamp(1.05rem, 2.4vw, 1.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 0.4rem;
  position: relative;
}
.slide-meta {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.6);
  position: relative;
}
.slide-row {
  display: flex;
  justify-content: space-between;
  width: 100%;
  font-family: var(--mono);
  font-size: 0.72rem;
  margin-bottom: 0.35rem;
  color: rgba(255, 255, 255, 0.85);
  position: relative;
}
.slide-row span:last-child { color: rgba(255, 255, 255, 0.55); }
.slide-stale {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-2);
  padding: 0.15rem 0.4rem;
  border: 1px solid var(--accent-2);
  border-radius: 3px;
  opacity: 0;
  transition: opacity 0.3s;
}
.tv.is-offline .slide-stale { opacity: 1; }

/* ==========================================================================
   MANIFESTO
   ========================================================================== */
.principles {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}
.principle {
  position: relative;
  padding: 2rem 1.75rem 1.75rem;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: 10px;
}
.principle .num {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 0.85rem;
}
.principle h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 0.75rem;
  letter-spacing: -0.015em;
  line-height: 1.25;
}
.principle p {
  font-size: 0.95rem;
  color: var(--text-2);
  line-height: 1.55;
  margin: 0;
}
.principle-coda {
  grid-column: 1 / -1;
  background: linear-gradient(180deg, transparent 0%, var(--accent-soft) 100%);
  border-color: var(--accent-soft);
  text-align: center;
  padding: 2.5rem 2rem;
}
.principle-coda .num { color: var(--accent); font-size: 1.5rem; }
.principle-coda h3 { font-size: 1.5rem; max-width: 600px; margin: 0 auto 1rem; }
.principle-coda p { max-width: 540px; margin: 0 auto; }

/* ==========================================================================
   BRAND IS A SOURCE TOO
   ========================================================================== */
.brand-source { background: var(--bg-1); }
.brand-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}
.brand-code {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.5rem 1.75rem;
  font-family: var(--mono);
  font-size: 0.95rem;
  line-height: 1.7;
  overflow-x: auto;
}
.brand-code pre { margin: 0; }
.brand-code .t-kw { color: var(--t-kw); }
.brand-code .t-fn { color: var(--t-fn); }
.brand-code .t-str { color: var(--t-str); }
.brand-code .t-id { color: var(--t-id); }
.brand-prose p { font-size: 1.05rem; color: var(--text-2); line-height: 1.6; }
.brand-prose p strong { color: var(--accent); font-weight: 600; }
.brand-prose .aside {
  margin-top: 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
  font-size: 0.95rem;
  color: var(--text-3);
}
.brand-prose .aside code {
  color: var(--accent-2);
}

/* ==========================================================================
   OLD WAY / NEW WAY
   ========================================================================== */
.versus { position: relative; }
.versus-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  position: relative;
}
.lane {
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.75rem 1.75rem 1.5rem;
}
.lane.new {
  border-color: var(--accent-soft);
  background: linear-gradient(180deg, var(--bg-1), rgba(255, 107, 26, 0.04));
}
.lane-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}
.lane-tag {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-3);
}
.lane.new .lane-tag { color: var(--accent); }
.lane-meta { color: var(--text-3); }
.lane-title {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 1.5rem;
  line-height: 1.25;
}
.steps {
  list-style: none;
  margin: 0 0 1.75rem;
  padding: 0;
  counter-reset: step;
  font-family: var(--mono);
  font-size: 0.88rem;
}
.steps li {
  counter-increment: step;
  padding: 0.5rem 0 0.5rem 2.3rem;
  position: relative;
  color: var(--text-2);
  border-bottom: 1px solid var(--line);
}
.steps li:last-child { border-bottom: 0; }
.steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.5rem;
  width: 1.8rem;
  font-size: 0.7rem;
  color: var(--text-4);
  letter-spacing: 0.04em;
}
.steps .fail {
  color: var(--red);
}
.steps .fail::before { color: var(--red); }
.steps .done {
  color: var(--green);
}
.steps .done::before { color: var(--green); }
.lane.new .steps .done { color: var(--text); }
.lane.new .steps .done::before { color: var(--accent); }

.lane-stat {
  display: flex;
  gap: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
}
.lane-stat > div { display: flex; flex-direction: column; }
.lane-stat .k {
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
}
.lane-stat .v {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  margin-top: 0.2rem;
}
.lane.new .lane-stat .v { color: var(--accent); }

.vs-divider {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: var(--mono);
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-3);
  background: var(--bg);
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  z-index: 2;
  pointer-events: none;
}

/* ==========================================================================
   SPEC
   ========================================================================== */
.spec { background: var(--bg-1); }
.arch {
  margin: 0 0 3.5rem;
  padding: 2.5rem 2rem;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 10px;
}
.arch-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 1rem;
  align-items: center;
}
.arch-node {
  padding: 1.25rem 1rem;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: 8px;
  text-align: center;
}
.arch-node-mid {
  border-color: var(--accent);
  background: linear-gradient(180deg, var(--bg-1), var(--accent-soft));
  box-shadow: 0 0 24px var(--accent-soft);
}
.arch-icon {
  font-family: var(--mono);
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}
.arch-label {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 0.4rem;
}
.arch-detail {
  font-size: 0.82rem;
  color: var(--text-3);
  line-height: 1.4;
}
.arch-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  min-width: 60px;
}
.arch-arrow .arrow-line {
  width: 100%;
  height: 1px;
  background: var(--text-4);
  position: relative;
}
.arch-arrow .arrow-line::after {
  content: "▸";
  position: absolute;
  right: -2px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-4);
  font-size: 0.7rem;
}
.arch-arrow .arrow-tag {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.spec-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
}
.spec-points li {
  display: flex;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 10px;
}
.spec-icon {
  flex-shrink: 0;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 1.1rem;
  line-height: 1.4;
}
.spec-points h4 {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin: 0 0 0.45rem;
}
.spec-points p {
  font-size: 0.93rem;
  color: var(--text-2);
  line-height: 1.55;
  margin: 0;
}

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq-list { display: grid; gap: 0.5rem; }
.faq-item {
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  transition: border-color 0.15s;
}
.faq-item:hover { border-color: var(--line-2); }
.faq-q {
  width: 100%;
  display: grid;
  grid-template-columns: 3rem 1fr 2rem;
  gap: 1rem;
  align-items: center;
  padding: 1.2rem 1.4rem;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.015em;
}
.q-num {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 500;
  letter-spacing: 0.04em;
}
.q-toggle {
  width: 14px;
  height: 14px;
  position: relative;
  justify-self: end;
  transition: transform 0.2s;
}
.q-toggle::before, .q-toggle::after {
  content: "";
  position: absolute;
  background: var(--accent);
  transition: opacity 0.2s;
}
.q-toggle::before {
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  transform: translateY(-50%);
}
.q-toggle::after {
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  transform: translateX(-50%);
}
.faq-q[aria-expanded="true"] .q-toggle::after { opacity: 0; }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-a-inner {
  padding: 0 1.4rem 1.4rem 5rem;
  color: var(--text-2);
  font-size: 0.98rem;
  line-height: 1.6;
}
.faq-a-inner p { margin: 0; }
.faq-a-inner a {
  color: var(--accent);
  border-bottom: 1px solid currentColor;
}
.faq-a-inner em { color: var(--accent-2); }

/* ==========================================================================
   QUICKSTART
   ========================================================================== */
.quickstart { background: var(--bg-1); }
.qs-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}
.qs-step {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 1.5rem;
  padding: 1.5rem 1.75rem;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 10px;
  align-items: start;
}
.qs-step .qs-num {
  font-family: var(--mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.04em;
  line-height: 1.2;
}
.qs-step .qs-body { min-width: 0; }
.qs-step h3 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin: 0 0 0.75rem;
  line-height: 1.3;
}
.qs-step h3 a {
  color: var(--accent);
  border-bottom: 1px solid currentColor;
}
.qs-step p {
  color: var(--text-2);
  margin: 0;
  font-size: 0.98rem;
}
.qs-step pre {
  margin: 0;
  padding: 1rem 1.2rem;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: 6px;
  font-family: var(--mono);
  font-size: 0.88rem;
  line-height: 1.65;
  overflow-x: auto;
  white-space: pre;
}
.qs-step pre code {
  background: none;
  border: 0;
  padding: 0;
  color: var(--text);
  font-family: inherit;
  font-size: inherit;
}
.qs-step pre .t-kw { color: var(--t-kw); }
.qs-step pre .t-fn { color: var(--t-fn); }
.qs-step pre .t-str { color: var(--t-str); }
.qs-step pre .t-id { color: var(--t-id); }
.qs-step pre .t-c { color: var(--t-c); }
.qs-foot {
  margin-top: 2.5rem;
  text-align: center;
  font-size: 1rem;
  color: var(--text-3);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 720px) {
  .qs-step {
    grid-template-columns: 1fr;
    gap: 0.85rem;
    padding: 1.2rem 1.25rem;
  }
  .qs-step .qs-num { font-size: 1.1rem; }
}

/* ==========================================================================
   END CTA
   ========================================================================== */
.endcta {
  text-align: center;
  padding: 7rem 0;
  border-bottom: 0;
}
.endcta h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin: 0 0 1.25rem;
  line-height: 1.1;
}
.endcta h2 em { font-style: normal; color: var(--accent); }
.endcta p {
  font-size: 1.1rem;
  color: var(--text-2);
  max-width: 540px;
  margin: 0 auto 2.5rem;
}
.endcta-row {
  display: inline-flex;
  gap: 0.85rem;
  flex-wrap: wrap;
  justify-content: center;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
footer {
  padding: 3rem 0 4rem;
  border-top: 1px solid var(--line);
  background: var(--bg-1);
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: space-between;
  align-items: flex-start;
}
.footer-brand { font-family: var(--mono); font-size: 0.85rem; }
.footer-brand .brand { margin-bottom: 0.8rem; }
.footer-by { color: var(--text-2); margin-bottom: 0.35rem; }
.footer-by a { color: var(--accent); border-bottom: 1px solid currentColor; }
.footer-fine { color: var(--text-4); font-size: 0.78rem; }
.footer-links {
  display: flex;
  gap: 1.5rem;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text-2);
}
.footer-links a:hover { color: var(--accent); }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }
  .brand-grid { grid-template-columns: 1fr; gap: 2rem; }
  .arch-row {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
  .arch-arrow {
    transform: rotate(90deg);
    width: 60px;
    min-width: 60px;
    margin: 0 auto;
  }
  .arch-arrow .arrow-tag { transform: rotate(-90deg); }
}

@media (max-width: 720px) {
  .wrap { padding: 0 1.25rem; }
  section { padding: 4.5rem 0; }
  .topbar-inner { gap: 1rem; }
  .primary { gap: 1.2rem; font-size: 0.78rem; flex-wrap: wrap; }
  .versus-grid { grid-template-columns: 1fr; gap: 1.25rem; }
  .vs-divider {
    position: relative;
    left: auto;
    top: auto;
    transform: none;
    margin: 0.5rem auto;
    display: block;
    width: max-content;
  }
  .faq-q { grid-template-columns: 2.2rem 1fr 1.5rem; padding: 1rem 1rem; font-size: 0.98rem; }
  .faq-a-inner { padding: 0 1rem 1.2rem 3.5rem; font-size: 0.94rem; }
  .tv-stage { gap: 0.5rem; }
  .connection { width: 60px; }
  .conn-line { width: 60px; }
  .lane-stat { gap: 1rem; flex-wrap: wrap; }
}