@font-face {
  font-family: Manrope;
  src: url('assets/fonts/Manrope-Variable.ttf') format('truetype');
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: Instrument;
  src: url('assets/fonts/InstrumentSerif-Regular.ttf') format('truetype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  --paper: #f4f2ec;
  --paper-elevated: #faf9f4;
  --surface: #fffefa;
  --ink: #1a231e;
  --ink-soft: #2e3b33;
  --muted: #525d54;
  --red: #c4382d;
  --red-hover: #a32b21;
  --red-soft: #f9ebe8;
  --line: #d8dbd0;
  --line-strong: #bcc3b3;
  --sage: #e6eadf;
  --green: #16241d;
  --green-mid: #203329;
  --green-card: #1d2f26;
  --green-line: #2f463a;
  --lime: #d5e4ad;
  --amber: #c98a2c;
  --serif: Instrument, Georgia, serif;
  --font: Manrope, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
  --container: 1320px;
  --ease: cubic-bezier(0.2, 0.72, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
  overflow-x: clip;
}

body {
  margin: 0;
  background-color: var(--paper);
  background-image:
    linear-gradient(to right, rgba(164, 174, 155, 0.12) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(164, 174, 155, 0.12) 1px, transparent 1px);
  background-size: 64px 64px;
  color: var(--ink);
  font: 15px/1.68 var(--font);
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

body.menu-open {
  overflow: hidden;
}

button, input, select, textarea {
  font: inherit;
}

button, a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  color: inherit;
  cursor: pointer;
}

button:disabled {
  cursor: wait;
  opacity: 0.65;
}

svg {
  display: block;
}

img {
  max-width: 100%;
}

p, h1, h2, h3, h4 {
  margin: 0;
}

h1, h2, h3 {
  font-weight: 600;
  line-height: 1.08;
  letter-spacing: -0.04em;
}

p {
  color: var(--muted);
}

::selection {
  background: var(--lime);
  color: var(--ink);
}

:focus-visible {
  outline: 3px solid #2b5c8f;
  outline-offset: 4px;
}

button:focus-visible {
  outline-offset: 2px;
}

[hidden] {
  display: none !important;
}

.container {
  width: min(calc(100% - 80px), var(--container));
  margin-inline: auto;
}

.section-space {
  padding-block: 108px;
}

.icon {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.65;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex: none;
}

.icon-definitions {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.serif {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -0.03em;
}

.brand-dot {
  color: var(--red);
}

.eyebrow, .tiny-label {
  font-size: 11px;
  line-height: 1.45;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
  color: #4c5a4b;
}

.signal-dot {
  width: 7px;
  height: 7px;
  background: var(--red);
  border-radius: 50%;
  display: inline-block;
  flex: none;
  box-shadow: 0 0 0 4px rgba(196, 56, 45, 0.16);
}

.live-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  background: #4d7c48;
  border-radius: 50%;
  flex: none;
  box-shadow: 0 0 0 3px rgba(77, 124, 72, 0.18);
}

.skip-link {
  position: fixed;
  left: 20px;
  top: -100px;
  padding: 12px 20px;
  background: var(--green);
  color: white;
  border-radius: var(--radius-sm);
  z-index: 200;
}

.skip-link:focus {
  top: 12px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* =========================================================
   HEADER & NAVIGATION
   ========================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(244, 242, 236, 0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand-cluster {
  display: flex;
  align-items: center;
  gap: 12px;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

.wordmark > span {
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -1.1px;
  color: var(--ink);
}

.wordmark img {
  width: 32px;
  height: 35px;
}

.arch-badge {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 4px 8px;
  border-radius: 99px;
  background: #e6eadc;
  border: 1px solid #cbd3bf;
  color: #3f513e;
  white-space: nowrap;
}

.desktop-nav {
  display: flex;
  gap: 28px;
  align-items: center;
  margin-inline: auto;
}

.desktop-nav a {
  font-size: 13.5px;
  font-weight: 600;
  color: var(--ink-soft);
  transition: color 0.2s;
  position: relative;
  padding-block: 4px;
}

.desktop-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.24s var(--ease);
}

.desktop-nav a:hover {
  color: var(--ink);
}

.desktop-nav a:hover::after {
  transform: scaleX(1);
}

.header-actions {
  display: flex;
  gap: 18px;
  align-items: center;
}

.app-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 13.5px;
  font-weight: 650;
  color: var(--ink);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
  white-space: nowrap;
  min-height: 42px;
}

.app-link:hover {
  background: var(--surface);
  border-color: var(--line-strong);
  color: var(--red);
}

.app-link .icon {
  width: 15px;
  height: 15px;
}

.button {
  min-height: 48px;
  padding: 12px 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  font-weight: 650;
  letter-spacing: -0.01em;
  transition: background 0.2s, border-color 0.2s, transform 0.22s var(--ease), box-shadow 0.22s;
  white-space: nowrap;
}

.button:hover {
  transform: translateY(-2px);
}

.button .icon {
  width: 17px;
  height: 17px;
}

.button-sm {
  min-height: 42px;
  padding: 10px 18px;
  font-size: 13px;
}

.button-red {
  background: var(--red);
  color: #ffffff;
}

.button-red:hover {
  background: var(--red-hover);
  box-shadow: 0 10px 24px rgba(196, 56, 45, 0.24);
}

.button-dark {
  background: var(--ink);
  color: #ffffff;
}

.button-dark:hover {
  background: #2b3c32;
  box-shadow: 0 8px 20px rgba(26, 35, 30, 0.18);
}

.button-outline {
  background: var(--surface);
  color: var(--ink);
  border-color: var(--line-strong);
}

.button-outline:hover {
  border-color: var(--ink);
  background: #ffffff;
}

.button-light {
  background: var(--paper);
  color: var(--ink);
}

.button-light:hover {
  background: #ffffff;
}

.header-demo {
  min-height: 42px;
  padding: 9px 17px;
  font-size: 13px;
}

.text-link {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  font-size: 13.5px;
  font-weight: 650;
  color: var(--ink);
  transition: color 0.2s, gap 0.2s;
}

.text-link:hover {
  color: var(--red);
}

.text-link .icon {
  width: 17px;
  height: 17px;
}

.light-link {
  color: #e6ecd9;
}

.light-link:hover {
  color: var(--lime);
}

.menu-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  min-width: 44px;
  min-height: 44px;
  padding: 10px;
}

.mobile-nav {
  position: fixed;
  inset: 76px 0 0;
  background: var(--paper);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
}

.mobile-nav a {
  font-size: 21px;
  font-weight: 600;
  letter-spacing: -0.03em;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.mobile-nav .mobile-app-cta {
  margin-top: 16px;
  padding: 16px 20px;
  background: var(--ink);
  color: #ffffff;
  border-radius: var(--radius-sm);
  text-align: center;
  font-size: 16px;
}

/* =========================================================
   00 / HERO SECTION & AXONOMETRIC VIEWPORT
   ========================================================= */
.hero {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: center;
  padding-top: 48px;
  padding-bottom: 68px;
}

.hero-copy {
  min-width: 0;
}

.hero h1 {
  font-size: clamp(54px, 5.8vw, 86px);
  line-height: 0.97;
  font-weight: 600;
  letter-spacing: -0.055em;
}

.hero h1 .serif {
  font-size: 1.09em;
  line-height: 1.01;
  font-weight: 400;
}

.hero-description {
  font-size: 16px;
  line-height: 1.72;
  max-width: 500px;
  margin-top: 24px;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  gap: 14px;
  align-items: center;
  margin-top: 28px;
  flex-wrap: wrap;
}

.hero-personas {
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.hero-personas .tiny-label {
  display: block;
  color: #556350;
  margin-bottom: 12px;
}

.persona-pills {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.persona-pill {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  background: rgba(255, 254, 250, 0.78);
  border: 1px solid var(--line);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink-soft);
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}

.persona-pill:hover {
  background: var(--surface);
  border-color: #96a68c;
  transform: translateY(-1px);
  color: var(--ink);
}

.pill-index {
  font-size: 10.5px;
  font-weight: 700;
  color: var(--red);
  background: var(--red-soft);
  padding: 2px 6px;
  border-radius: 4px;
}

/* Interactive Hero Viewport */
.hero-visual {
  align-self: stretch;
  min-width: 0;
  background: #e7ebde;
  border: 1px solid #c9d2be;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  box-shadow: 0 22px 50px rgba(32, 48, 36, 0.08);
  isolation: isolate;
}

.visual-heading {
  padding: 13px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #cfd8c5;
  background: #eef1e6;
  gap: 12px;
  color: #3f503c;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.viewport-status {
  display: flex;
  gap: 8px;
  align-items: center;
}

.viewport-coords {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 11px;
  color: #53644f;
}

.visual-sample {
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 2px 8px;
  border-radius: 99px;
  background: #dde4d2;
  color: #3a4a37;
}

/* Layer Inspector Pill Bar */
.layer-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  padding: 9px 16px;
  background: #f5f6ee;
  border-bottom: 1px solid #d4dcc9;
}

.layer-bar-label {
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.09em;
  color: #54644e;
  margin-right: 2px;
  white-space: nowrap;
}

.layer-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 9px;
  border-radius: 99px;
  border: 1px solid #cbd4c0;
  background: #ffffff;
  font-size: 11px;
  font-weight: 650;
  color: #3c4b39;
  white-space: nowrap;
  transition: all 0.2s;
}

.layer-chip:hover {
  border-color: #8fa083;
}

.layer-chip.is-active {
  background: var(--ink);
  color: #ffffff;
  border-color: var(--ink);
}

.chip-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.dot-red { background: #d6453a; }
.dot-steel { background: #6b8778; }
.dot-wool { background: #a8b36d; }
.dot-ceiling { background: #95a889; }
.dot-floor { background: #8f9483; }

.room-canvas {
  position: relative;
  flex: 1;
  min-height: 440px;
  background:
    radial-gradient(ellipse at 58% 38%, #f8f8ef 0%, transparent 72%),
    linear-gradient(to right, rgba(145, 160, 134, 0.12) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(145, 160, 134, 0.12) 1px, transparent 1px);
  background-size: 100% 100%, 32px 32px, 32px 32px;
}

.room-canvas:focus-visible {
  outline-offset: -4px;
}

.canvas-axis {
  position: absolute;
  left: 18px;
  right: 18px;
  top: 14px;
  display: flex;
  justify-content: space-between;
  font-size: 10.5px;
  color: #4f604b;
  font-weight: 700;
  letter-spacing: 0.08em;
  z-index: 2;
}

.room-model {
  width: 108%;
  height: auto;
  max-height: 460px;
  position: absolute;
  left: -4%;
  top: 4px;
  overflow: visible;
}

.model-structure {
  transform-origin: 390px 360px;
  animation: model-enter 1s var(--ease) both;
}

.floating-ceiling {
  animation: ceiling-float 7s ease-in-out infinite;
  transition: transform 0.6s var(--ease), filter 0.4s;
}

.exploded-layers,
.svg-layer {
  transition: transform 0.65s var(--ease), opacity 0.4s, filter 0.4s;
}

.hero-visual[data-stage="quantities"] .exploded-layers {
  transform: translate(14px, -9px);
}

.hero-visual[data-stage="project"] .exploded-layers {
  transform: translate(26px, -16px);
}

.hero-visual[data-layer="cladding"] .svg-layer-cladding {
  transform: translate(-10px, 6px);
  filter: drop-shadow(0 8px 14px rgba(196, 56, 45, 0.25));
}

.hero-visual[data-layer="framing"] .svg-layer-framing {
  transform: translate(0, -10px);
  filter: drop-shadow(0 8px 14px rgba(72, 102, 86, 0.3));
}

.hero-visual[data-layer="insulation"] .svg-layer-insulation {
  transform: translate(8px, -12px);
  filter: drop-shadow(0 8px 14px rgba(130, 143, 97, 0.32));
}

.hero-visual[data-layer="ceiling"] .svg-layer-ceiling {
  transform: translate(0, -14px);
  filter: drop-shadow(0 12px 18px rgba(70, 92, 66, 0.24));
}

.hero-visual[data-layer="floor"] .svg-layer-floor .floor-grid {
  stroke: #bf392f;
  stroke-width: 1.5;
}

.model-pin {
  transition: transform 0.65s var(--ease);
}

.hero-visual[data-stage="project"] .model-pin {
  transform: translate(260px, 65px);
}

/* Floating Telemetry Note inside Viewport */
.assembly-note {
  position: absolute;
  bottom: 30px;
  left: 18px;
  right: 18px;
  display: flex;
  gap: 16px;
  align-items: center;
  padding: 15px 18px;
  background: rgba(255, 254, 249, 0.95);
  backdrop-filter: blur(10px);
  border: 1px solid #cbd4c0;
  box-shadow: 0 10px 30px rgba(38, 54, 34, 0.1);
  border-radius: var(--radius);
  z-index: 3;
}

.note-index {
  font: 30px/1 var(--serif);
  align-self: flex-start;
  color: var(--red);
  min-width: 28px;
}

.note-body {
  flex: 1;
  min-width: 0;
}

.note-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.assembly-note .tiny-label {
  font-size: 10px;
  letter-spacing: 0.1em;
  color: #4f604b;
}

.note-spec-pill {
  font-size: 11px;
  font-weight: 700;
  color: #2c4433;
  background: #e5ecdc;
  border: 1px solid #c5d2b6;
  padding: 2px 8px;
  border-radius: 99px;
}

.assembly-note strong {
  display: block;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-top: 3px;
  color: var(--ink);
}

.assembly-note p {
  font-size: 12.5px;
  line-height: 1.5;
  margin-top: 3px;
  color: #485446;
}

.note-icon {
  margin-left: auto;
  color: #4f664b;
  width: 24px;
  height: 24px;
}

.drawing-scale {
  position: absolute;
  bottom: 8px;
  left: 20px;
  right: 20px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  font-size: 9.5px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: #4c5c47;
}

.north-arrow {
  margin-right: auto;
  font-size: 10.5px;
  font-weight: 700;
}

.scale-rule {
  width: 44px;
  height: 5px;
  border-bottom: 1.5px solid #697a60;
  border-inline: 1.5px solid #697a60;
}

/* 3-Stage Viewport Mode Tabs */
.preview-tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: #eef1e6;
  border-top: 1px solid #cfd8c5;
}

.preview-tabs button {
  display: flex;
  align-items: center;
  gap: 10px;
  background: none;
  border: 0;
  border-right: 1px solid #d5decb;
  border-bottom: 3px solid transparent;
  padding: 13px 16px;
  text-align: left;
  color: #51614c;
  transition: background 0.2s, color 0.2s;
}

.preview-tabs button:last-child {
  border-right: 0;
}

.preview-tabs button:hover {
  background: #f6f8f1;
}

.preview-tabs .tab-num {
  font-size: 11px;
  font-weight: 800;
  color: #6b7a65;
}

.preview-tabs .tab-text strong {
  display: block;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
}

.preview-tabs .tab-text small {
  display: block;
  font-size: 11px;
  color: #586853;
}

.preview-tabs button[aria-selected="true"] {
  background: var(--surface);
  color: var(--ink);
  border-bottom-color: var(--red);
}

.preview-tabs button[aria-selected="true"] .tab-num {
  color: var(--red);
}

/* =========================================================
   TELEMETRY BAND
   ========================================================= */
.platform-band {
  border-block: 1px solid var(--line);
  background: #ecebe2;
}

.band-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 24px;
  flex-wrap: wrap;
}

.band-inner > p {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--muted);
}

.band-inner strong {
  font-weight: 700;
  color: var(--ink);
}

.band-pillars {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.band-pillars > span {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  font-weight: 650;
  color: var(--ink);
  white-space: nowrap;
}

.band-pillars > span .icon {
  width: 19px;
  height: 19px;
  color: #486149;
}

.band-pillars > i {
  width: 4px;
  height: 4px;
  background: #9fa996;
  border-radius: 50%;
}

/* =========================================================
   01 / PLATFORM ARCHITECTURE BENTO GRID
   ========================================================= */
.section-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 48px;
  margin-bottom: 48px;
}

.section-heading h2,
.faq-section h2 {
  font-size: clamp(36px, 4vw, 54px);
  line-height: 1.04;
  letter-spacing: -0.045em;
}

.section-heading .serif,
.faq-section .serif {
  font-size: 1.12em;
}

.section-heading > p {
  max-width: 420px;
  font-size: 15px;
  line-height: 1.72;
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 20px;
}

.capability-card {
  grid-column: span 5;
  padding: 28px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--paper-elevated);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.28s var(--ease), border-color 0.28s, background 0.28s, box-shadow 0.28s;
  position: relative;
}

.capability-card.bento-wide {
  grid-column: span 7;
}

.capability-card:hover {
  background: var(--surface);
  border-color: #7d9177;
  transform: translateY(-4px);
  box-shadow: 0 18px 38px rgba(32, 46, 36, 0.08);
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  color: #4f5f4b;
  margin-bottom: 18px;
}

.card-number {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.card-tag {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 4px 9px;
  background: #e7ecdf;
  border: 1px solid #cbd4be;
  border-radius: 99px;
  color: #3a4c39;
}

.bento-split {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: 24px;
  align-items: center;
}

.capability-card h3 {
  font-size: 24px;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
  color: var(--ink);
}

.capability-card p {
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--muted);
}

.bento-specs {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.bento-specs li {
  font-size: 13px;
  font-weight: 600;
  color: #354537;
  padding-left: 18px;
  position: relative;
}

.bento-specs li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--red);
}

.card-link {
  margin-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 13px;
  font-weight: 700;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--ink);
}

.capability-card:hover .card-link {
  color: var(--red);
}

.mini-visual {
  min-height: 150px;
  position: relative;
  margin-block: 8px 14px;
  padding: 16px;
  background: #eef1e6;
  border: 1px solid #d5decb;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.layers-mini {
  flex-direction: column;
  gap: 14px;
}

.iso-stack {
  position: relative;
  width: 100%;
  height: 92px;
}

.iso-stack i {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 96px;
  height: 58px;
  border: 1.5px solid #8b9d7c;
  background: #dfe6d2;
  transform: translate(-50%, -50%) rotate(-26deg) skew(24deg);
  border-radius: 3px;
}

.iso-stack i:nth-child(1) { margin-top: 20px; background: #cbd6bc; }
.iso-stack i:nth-child(2) { margin-top: 6px; background: #f4f2e8; }
.iso-stack i:nth-child(3) { margin-top: -8px; background: #d2d8b4; }
.iso-stack i:nth-child(4) { margin-top: -22px; background: #d65c4f; border-color: #b53f33; }

.mini-telemetry {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.mini-telemetry span {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: #4c5c48;
  background: #fafbf6;
  padding: 4px 8px;
  border-radius: 4px;
  border: 1px solid #d8e0ce;
}

.mini-telemetry b {
  color: var(--ink);
}

.quantities-mini {
  flex-direction: column;
  gap: 8px;
}

.quantities-mini > span {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: #fafbf6;
  border: 1px solid #d8e0ce;
  border-radius: 5px;
  font-size: 12px;
}

.quantities-mini i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--red);
  flex: none;
}

.quantities-mini b {
  font-weight: 650;
  color: var(--ink);
}

.quantities-mini em {
  margin-left: auto;
  font-style: normal;
  font-size: 11px;
  font-weight: 700;
  color: #4d6247;
  background: #e6ecdc;
  padding: 2px 7px;
  border-radius: 4px;
}

.project-mini {
  min-height: 150px;
}

.project-node {
  position: absolute;
  border: 1.5px solid #8c9e7e;
  padding: 5px 10px;
  font-size: 10.5px;
  font-weight: 800;
  background: #fafbf6;
  z-index: 1;
  border-radius: 5px;
  color: var(--ink);
}

.node-main {
  top: 22px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--red);
  border-color: #a32b21;
  color: #ffffff;
}

.node-a { top: 96px; left: calc(50% - 102px); }
.node-b { top: 96px; left: 50%; transform: translateX(-50%); }
.node-c { top: 96px; left: calc(50% + 44px); }

.project-mini > i {
  position: absolute;
  top: 66px;
  left: calc(50% - 74px);
  width: 148px;
  height: 36px;
  border: 1.5px solid #96a887;
  border-bottom: 0;
}

.project-mini > i::before {
  content: "";
  position: absolute;
  left: 72px;
  top: -22px;
  height: 56px;
  width: 1.5px;
  background: #96a887;
}

.deliver-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  width: 100%;
}

.deliver-cards span {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 18px 8px;
  background: #fafbf6;
  border: 1.5px solid #c5d0b8;
  border-radius: 6px;
  text-align: center;
}

.deliver-cards span:last-child {
  background: #f9ebe8;
  border-color: #deb5ad;
}

.deliver-cards b {
  font-size: 14px;
  font-weight: 800;
  color: var(--ink);
}

.deliver-cards span:last-child b {
  color: var(--red);
}

.deliver-cards small {
  font-size: 10.5px;
  color: #53634f;
  margin-top: 4px;
}

/* =========================================================
   02 / INTERACTIVE SANDBOX: LIVE ROOM & SYSTEM SIMULATOR
   ========================================================= */
.sandbox-section {
  background: var(--green);
  color: var(--paper);
  border-block: 1px solid var(--green-line);
  position: relative;
  overflow: hidden;
}

.sandbox-heading > p {
  color: #c1ceba;
}

.light-eyebrow {
  color: var(--lime);
}

.sandbox-workbench {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 28px;
  background: var(--green-mid);
  border: 1px solid var(--green-line);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: 0 28px 60px rgba(0, 0, 0, 0.24);
}

.sandbox-controls {
  background: var(--green-card);
  border: 1px solid var(--green-line);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.sandbox-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.sandbox-bar .tiny-label {
  color: #b7c8ae;
}

.sandbox-badge {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 3px 9px;
  border-radius: 99px;
  background: rgba(213, 228, 173, 0.14);
  color: var(--lime);
  border: 1px solid rgba(213, 228, 173, 0.3);
}

.preset-buttons {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.preset-btn {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid #355041;
  background: rgba(255, 255, 255, 0.03);
  color: #d7e2d1;
  font-size: 12.5px;
  font-weight: 600;
  text-align: left;
  transition: all 0.2s;
}

.preset-btn:hover {
  border-color: #658671;
  background: rgba(255, 255, 255, 0.07);
}

.preset-btn.is-active {
  background: var(--lime);
  color: var(--ink);
  border-color: var(--lime);
  font-weight: 700;
}

.slider-group {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.slider-field {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.slider-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
}

.slider-label-row label {
  color: #d6e1d0;
  font-weight: 600;
}

.slider-label-row output {
  font-weight: 700;
  color: var(--lime);
  background: rgba(0, 0, 0, 0.24);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12.5px;
}

.slider-field input[type="range"] {
  width: 100%;
  accent-color: var(--red);
  cursor: pointer;
  height: 6px;
}

.system-compare-toggle .tiny-label {
  display: block;
  color: #b7c8ae;
  margin-bottom: 10px;
}

.toggle-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.sys-btn {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid #365243;
  background: rgba(255, 255, 255, 0.03);
  text-align: left;
  transition: all 0.2s;
}

.sys-btn strong {
  display: block;
  font-size: 13px;
  color: #ffffff;
}

.sys-btn small {
  display: block;
  font-size: 11px;
  color: #aec0a6;
  margin-top: 3px;
  line-height: 1.4;
}

.sys-btn.is-active {
  background: rgba(196, 56, 45, 0.2);
  border-color: #df5b4f;
}

.sys-btn.is-active strong {
  color: #ffd8d4;
}

/* Sandbox Right Output Panel */
.sandbox-output {
  background: #142019;
  border: 1px solid var(--green-line);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 20px;
}

.output-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid #283d31;
}

.output-header .tiny-label {
  color: var(--lime);
}

.output-header h3 {
  font-size: 21px;
  color: #ffffff;
  margin-top: 4px;
}

.formula-pill {
  font-size: 12px;
  font-weight: 700;
  color: #d6e4b8;
  background: #1f3228;
  border: 1px solid #355241;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.primitive-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.primitive-card {
  background: #1b2b22;
  border: 1px solid #2c4436;
  border-radius: var(--radius-sm);
  padding: 12px;
}

.primitive-card.highlight-primitive {
  background: rgba(213, 228, 173, 0.1);
  border-color: rgba(213, 228, 173, 0.38);
}

.primitive-label {
  display: block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #a9bca1;
}

.primitive-value {
  display: block;
  font-size: 22px;
  font-weight: 800;
  color: #ffffff;
  margin-top: 4px;
  letter-spacing: -0.03em;
}

.highlight-primitive .primitive-value {
  color: var(--lime);
}

.primitive-card small {
  display: block;
  font-size: 11px;
  color: #9cb094;
  margin-top: 3px;
}

.sandbox-schedule {
  background: #192820;
  border: 1px solid #2b4235;
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.schedule-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  background: #203329;
  border-bottom: 1px solid #2b4235;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.09em;
  color: #bfd0b6;
}

.sim-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
  text-align: left;
}

.sim-table th {
  padding: 9px 14px;
  font-size: 11px;
  font-weight: 700;
  color: #9bb093;
  border-bottom: 1px solid #293e32;
}

.sim-table td {
  padding: 10px 14px;
  color: #e4ece0;
  border-bottom: 1px solid #23362b;
}

.sim-table tr:last-child td {
  border-bottom: 0;
}

.pkg-pill {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(213, 228, 173, 0.14);
  color: var(--lime);
  font-weight: 700;
  font-size: 11.5px;
}

.sandbox-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding-top: 8px;
  flex-wrap: wrap;
}

.sandbox-disclaimer {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  line-height: 1.5;
  color: #a9bca1;
  max-width: 430px;
}

.sandbox-disclaimer .icon {
  color: var(--lime);
  width: 18px;
  height: 18px;
}

.sandbox-cta-group {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* =========================================================
   03 / ROLE-BASED WORKSPACES SECTION
   ========================================================= */
.solutions-section {
  background: #eae9df;
  border-bottom: 1px solid var(--line);
}

.audience-layout {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 36px;
  align-items: stretch;
}

.audience-tabs {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.audience-tabs button {
  display: flex;
  gap: 16px;
  align-items: center;
  width: 100%;
  text-align: left;
  padding: 18px 20px;
  background: rgba(255, 254, 250, 0.65);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  position: relative;
  color: var(--muted);
  transition: all 0.22s;
}

.audience-tabs button:hover {
  background: var(--surface);
  border-color: #9cac8f;
}

.audience-tabs button > span {
  font-size: 12px;
  font-weight: 800;
  color: #6b7864;
  align-self: flex-start;
  padding-top: 2px;
}

.audience-tabs strong {
  display: block;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.audience-tabs small {
  display: block;
  font-size: 12.5px;
  color: #5b6855;
  margin-top: 3px;
}

.audience-tabs .icon {
  margin-left: auto;
  width: 18px;
  height: 18px;
}

.audience-tabs button[aria-selected="true"] {
  background: var(--surface);
  border-color: var(--ink);
  box-shadow: 0 10px 26px rgba(26, 35, 30, 0.07);
}

.audience-tabs button[aria-selected="true"] > span,
.audience-tabs button[aria-selected="true"] .icon {
  color: var(--red);
}

.audience-panel {
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  padding: 38px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 28px;
  align-items: center;
  box-shadow: 0 16px 40px rgba(32, 46, 36, 0.06);
}

.audience-copy > .tiny-label {
  color: var(--red);
}

.audience-copy h3 {
  font-size: 32px;
  line-height: 1.12;
  margin-top: 12px;
  letter-spacing: -0.035em;
}

.audience-copy p {
  font-size: 15px;
  line-height: 1.72;
  margin-top: 14px;
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 20px 0 26px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.check-list li {
  font-size: 13.5px;
  font-weight: 600;
  position: relative;
  padding-left: 22px;
  color: var(--ink-soft);
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  font-weight: 800;
  color: #467042;
}

.audience-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.audience-art {
  position: relative;
  align-self: stretch;
  min-height: 290px;
  background: #eef1e6;
  border: 1px solid #d1dac6;
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
}

.art-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: #53634d;
  text-align: right;
}

.workspace-blueprint {
  position: relative;
  flex: 1;
  min-height: 240px;
}

.bp-header {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 10px;
  background: #ffffff;
  border: 1px solid #cbd4c0;
  border-radius: 6px;
  font-size: 11px;
  color: var(--ink);
  margin-top: 8px;
}

.catalogue-sheet {
  position: absolute;
  width: 136px;
  height: 170px;
  background: #dfe5d2;
  border: 1.5px solid #9fb090;
  border-radius: 6px;
  top: calc(50% - 75px);
  left: calc(50% - 68px);
}

.sheet-back {
  transform: rotate(11deg) translate(14px, 4px);
  background: #d5dec5;
}

.sheet-front {
  transform: rotate(-6deg);
  background: #fbfcf7;
  box-shadow: 0 12px 24px rgba(56, 74, 48, 0.12);
  padding: 22px 18px;
}

.sheet-front > .icon {
  width: 44px;
  height: 44px;
  margin: 0 auto 16px;
  color: var(--red);
  stroke-width: 1.4;
}

.sheet-front > i {
  display: block;
  margin-bottom: 8px;
  background: #b9c8a5;
  width: 100%;
  height: 4px;
  border-radius: 2px;
}

.sheet-front > i:nth-of-type(2) { width: 72%; }
.sheet-front > i:nth-of-type(3) { width: 86%; }

.sheet-stamp {
  font-size: 9px;
  font-weight: 700;
  position: absolute;
  bottom: 12px;
  left: 16px;
  color: #55664c;
  letter-spacing: 0.06em;
}

.art-chip {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  font-weight: 650;
  background: #ffffff;
  border: 1px solid #c5d0b8;
  border-radius: 99px;
  padding: 7px 14px;
  box-shadow: 0 6px 16px rgba(32, 46, 36, 0.08);
}

/* =========================================================
   04 / CONNECTED WORKFLOW SECTION
   ========================================================= */
.workflow-layout {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 56px;
  align-items: start;
}

.workflow-steps {
  display: flex;
  flex-direction: column;
}

.workflow-steps button {
  display: flex;
  gap: 18px;
  align-items: center;
  text-align: left;
  padding: 22px 16px;
  background: none;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-left: 3px solid transparent;
  color: var(--muted);
  transition: background 0.2s, border-color 0.2s;
}

.workflow-steps button:hover {
  background: rgba(255, 254, 250, 0.6);
}

.workflow-steps button > span {
  font-size: 12px;
  font-weight: 800;
  align-self: flex-start;
  padding-top: 3px;
}

.workflow-steps button strong {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--ink);
}

.workflow-steps button small {
  display: block;
  font-size: 13px;
  margin-top: 4px;
  color: var(--muted);
}

.workflow-steps button .icon {
  margin-left: auto;
  width: 18px;
  height: 18px;
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
}

.workflow-steps button[aria-selected="true"] {
  color: var(--ink);
  background: var(--surface);
  border-left-color: var(--red);
}

.workflow-steps button[aria-selected="true"] > span,
.workflow-steps button[aria-selected="true"] .icon {
  color: var(--red);
  opacity: 1;
}

.workflow-panel {
  min-width: 0;
}

.mock-window {
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background: var(--surface);
  overflow: hidden;
  box-shadow: 0 20px 46px rgba(32, 48, 36, 0.09);
}

.mock-topbar {
  height: 48px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  padding: 0 18px;
  background: #f7f6ef;
}

.mini-brand {
  font-weight: 800;
  font-size: 24px;
  line-height: 1;
}

.mini-brand > span {
  color: var(--red);
}

.mock-topbar > span:nth-child(2) {
  font-size: 12.5px;
  font-weight: 600;
  color: #4f5d4b;
}

.mock-draft {
  margin-left: auto;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #455842;
  background: #e5ecdc;
  padding: 4px 9px;
  border-radius: 99px;
}

.mock-body {
  display: flex;
  min-height: 310px;
}

.mock-sidebar {
  border-right: 1px solid var(--line);
  background: #f1f2ea;
  width: 52px;
  flex: none;
  padding: 22px 14px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  color: #6b7965;
}

.mock-sidebar .icon {
  width: 19px;
  height: 19px;
}

.mock-sidebar .icon:nth-child(2) {
  color: var(--red);
}

.mock-content {
  padding: 24px;
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.mock-breadcrumb {
  font-size: 12px;
  font-weight: 600;
  color: #5b6956;
}

.mock-title-row {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin-top: 8px;
  flex-wrap: wrap;
}

.mock-title-row > h3 {
  font-size: 22px;
  letter-spacing: -0.03em;
}

.mock-status {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.07em;
  white-space: nowrap;
  color: #3f553c;
  background: #eef2e6;
  border: 1px solid #c9d4bc;
  border-radius: 4px;
  padding: 4px 9px;
}

.mock-design {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  margin-block: 20px;
  min-height: 150px;
}

.mock-section {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 5px;
  background: #eef1e5;
  border: 1px solid #d5dec8;
  border-radius: var(--radius-sm);
  position: relative;
  padding: 20px 16px 32px;
}

.mock-board {
  height: 86px;
  width: 12px;
  background: #d26c5c;
  border: 1px solid #b55344;
}

.mock-insulation {
  height: 86px;
  width: 60px;
  background: repeating-linear-gradient(45deg, #c6d0a3 0 6px, #dfe6c4 6px 12px);
  border: 1px solid #a3b580;
}

.mock-stud {
  height: 86px;
  width: 16px;
  border: 2.5px solid #6b8473;
  border-left: 0;
  background: #e9ede2;
}

.mock-dimension {
  position: absolute;
  bottom: 8px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.09em;
  color: #52624c;
}

.mock-fields {
  display: flex;
  flex-direction: column;
  gap: 10px;
  justify-content: center;
}

.mock-fields > span {
  font-size: 11.5px;
  font-weight: 600;
  color: #586652;
}

.mock-fields b {
  display: block;
  margin-top: 3px;
  padding: 7px 10px;
  border: 1px solid #d6ddd0;
  background: #fafbf6;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--ink);
  border-radius: 4px;
}

.mock-bottom {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  font-weight: 600;
  padding-top: 12px;
  border-top: 1px solid #e1e5da;
  color: #4f5f4b;
}

.workflow-caption {
  padding: 20px 4px 0;
}

.workflow-caption > strong {
  font-size: 16px;
  font-weight: 700;
}

.workflow-caption > p {
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.68;
  max-width: 560px;
}

.mock-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12.5px;
  margin-block: 18px;
  text-align: left;
}

.mock-table th {
  color: #566550;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.mock-table th,
.mock-table td {
  padding: 10px 8px;
  border-bottom: 1px solid #e2e6db;
}

.mock-table td:last-child {
  font-weight: 700;
  color: #3a5635;
}

.mock-tree {
  display: flex;
  gap: 14px;
  align-items: center;
  margin-block: 22px;
  min-height: 150px;
}

.mock-tree > div {
  flex: 1;
  border: 1px solid #cbd5be;
  background: #f1f4e8;
  border-radius: 6px;
  padding: 16px 12px;
}

.mock-tree strong {
  display: block;
  font-size: 14px;
  font-weight: 700;
  margin: 4px 0;
  color: var(--ink);
}

.mock-tree small {
  color: #54644e;
  font-size: 11px;
  font-weight: 600;
}

.mock-tree > span {
  font-size: 18px;
  font-weight: 700;
  color: var(--red);
}

.mock-files {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-block: 22px;
  min-height: 150px;
}

.mock-files > div {
  border: 1px solid #ced7c2;
  border-radius: 6px;
  padding: 18px 12px;
  background: #f6f8ef;
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.mock-files .icon {
  width: 26px;
  height: 26px;
  margin: 0 auto 10px;
  color: var(--red);
}

.mock-files strong {
  font-size: 13.5px;
  font-weight: 700;
  display: block;
}

.mock-files small {
  font-size: 10.5px;
  font-weight: 600;
  color: #596853;
  margin-top: 4px;
}

/* =========================================================
   05 / WHY BINALINK: GLASS-BOX ENGINEERING
   ========================================================= */
.why-section {
  background: var(--green);
  color: var(--paper);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.why-layout {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 80px;
  position: relative;
  z-index: 1;
  align-items: start;
}

.why-copy h2 {
  font-size: clamp(42px, 4.5vw, 62px);
  line-height: 1.02;
  letter-spacing: -0.045em;
}

.why-copy h2 .serif {
  font-size: 1.12em;
  color: var(--lime);
}

.why-copy > p {
  color: #c2cfbb;
  font-size: 15px;
  line-height: 1.75;
  max-width: 520px;
  margin-top: 22px;
}

.comparison-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 28px 0;
}

.comp-col {
  padding: 18px;
  border-radius: var(--radius);
  border: 1px solid #2d4437;
  background: rgba(255, 255, 255, 0.03);
}

.comp-binalink {
  background: rgba(213, 228, 173, 0.08);
  border-color: rgba(213, 228, 173, 0.32);
}

.comp-tag {
  display: inline-block;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.1em;
  color: #a9bca1;
  margin-bottom: 10px;
}

.comp-binalink .comp-tag {
  color: var(--lime);
}

.comp-col ul {
  margin: 0;
  padding-left: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.comp-col li {
  font-size: 12.5px;
  line-height: 1.5;
  color: #d3dfd0;
}

.why-details {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.why-details article {
  padding: 24px;
  background: var(--green-card);
  border: 1px solid var(--green-line);
  border-radius: var(--radius);
}

.why-details article > span {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.11em;
  color: var(--lime);
}

.why-details h3 {
  font-size: 22px;
  letter-spacing: -0.025em;
  margin-top: 8px;
  color: #ffffff;
}

.why-details p {
  font-size: 14px;
  line-height: 1.68;
  color: #c1ceba;
  margin-top: 8px;
}

.why-linework {
  position: absolute;
  width: 520px;
  height: 380px;
  border: 1px solid rgba(213, 228, 173, 0.09);
  transform: rotate(-28deg) skew(24deg);
  bottom: -260px;
  left: 10%;
  z-index: 0;
}

/* =========================================================
   06 / FAQ SECTION
   ========================================================= */
.faq-section {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 80px;
}

.faq-section > div:first-child > p {
  font-size: 15px;
  line-height: 1.75;
  margin-top: 18px;
}

.faq-section .text-link {
  margin-top: 10px;
}

.faq-list {
  border-top: 1px solid var(--line-strong);
}

.faq-list details {
  border-bottom: 1px solid var(--line-strong);
}

.faq-list summary {
  cursor: pointer;
  list-style: none;
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  font-size: 16px;
  font-weight: 650;
  color: var(--ink);
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary > .icon {
  width: 18px;
  height: 18px;
  color: var(--red);
  transition: transform 0.22s;
  flex: none;
}

.faq-list details[open] summary > .icon {
  transform: rotate(45deg);
}

.faq-list details > p {
  font-size: 14.5px;
  line-height: 1.75;
  padding-bottom: 24px;
  padding-right: 28px;
  color: var(--muted);
}

/* =========================================================
   07 / CONTACT & WALKTHROUGH FORM
   ========================================================= */
.contact-section {
  background: #eae9df;
  border-block: 1px solid var(--line-strong);
}

.contact-layout {
  display: grid;
  grid-template-columns: 0.92fr 1.08fr;
  gap: 72px;
  align-items: start;
}

.contact-copy h2 {
  font-size: clamp(44px, 4.8vw, 66px);
  line-height: 1.02;
  letter-spacing: -0.05em;
}

.contact-copy h2 .serif {
  font-size: 1.12em;
}

.contact-copy > p {
  font-size: 15.5px;
  line-height: 1.72;
  margin-top: 20px;
  max-width: 440px;
}

.contact-next {
  display: flex;
  flex-direction: column;
  gap: 11px;
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid var(--line-strong);
}

.contact-next .tiny-label {
  color: #4f5f4b;
  margin-bottom: 4px;
}

.contact-next > span:not(.tiny-label) {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink-soft);
}

.contact-next .icon {
  width: 16px;
  height: 16px;
  color: #467042;
}

.contact-direct-card {
  margin-top: 28px;
  padding: 18px 20px;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

.contact-direct-card .tiny-label {
  color: #53634e;
}

.contact-direct-card p {
  font-size: 13.5px;
  margin: 4px 0 10px;
}

.contact-form {
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: 0 18px 44px rgba(30, 44, 34, 0.07);
}

.contact-form > h3 {
  font-size: 26px;
  letter-spacing: -0.035em;
}

.contact-form > p:not(.form-status) {
  font-size: 14px;
  margin-top: 6px;
  margin-bottom: 20px;
}

.topic-Quick-wrap {
  margin-bottom: 20px;
  padding: 12px 14px;
  background: #f5f6ee;
  border: 1px solid #d5dec8;
  border-radius: var(--radius-sm);
}

.topic-Quick-wrap .tiny-label {
  display: block;
  font-size: 10px;
  color: #4f5f4b;
  margin-bottom: 8px;
}

.topic-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.topic-chip {
  padding: 5px 10px;
  border-radius: 99px;
  border: 1px solid #c4cfb6;
  background: #ffffff;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--ink-soft);
  transition: all 0.18s;
}

.topic-chip:hover {
  border-color: var(--ink);
}

.topic-chip.is-selected {
  background: var(--ink);
  color: #ffffff;
  border-color: var(--ink);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-bottom: 18px;
  min-width: 0;
}

.field > label {
  font-size: 12.5px;
  font-weight: 700;
  color: var(--ink);
}

.field > label > span {
  color: var(--red);
}

.field input,
.field select,
.field textarea {
  background: #fbfbf7;
  border: 1px solid #c6cebc;
  border-radius: var(--radius-sm);
  min-height: 46px;
  width: 100%;
  padding: 11px 13px;
  color: var(--ink);
  font-size: 14px;
  transition: border-color 0.2s, background 0.2s;
}

.field input:hover,
.field select:hover,
.field textarea:hover {
  border-color: #8c9c82;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: 2px solid #5c7858;
  outline-offset: 1px;
  background: #ffffff;
}

.field textarea {
  resize: vertical;
  min-height: 104px;
  max-height: 350px;
}

.field input::placeholder,
.field textarea::placeholder {
  color: #6b7764;
  opacity: 1;
}

.consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 12.5px;
  line-height: 1.6;
  color: #4d5b49;
}

.consent > input {
  accent-color: var(--green);
  width: 16px;
  height: 16px;
  margin: 2px 0 0;
  flex: none;
}

.consent a {
  text-decoration: underline;
  text-underline-offset: 2px;
  font-weight: 600;
}

.honeypot {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-submit {
  width: 100%;
  justify-content: space-between;
  margin-top: 22px;
  min-height: 50px;
  font-size: 14px;
}

.form-status {
  font-size: 13px;
  line-height: 1.65;
  margin-top: 14px;
  overflow-wrap: anywhere;
}

.form-status:empty {
  display: none;
}

.form-status[data-state="error"] {
  color: #9e2921;
  background: #fbeae8;
  padding: 12px 14px;
  border: 1px solid #e4b4ae;
  border-radius: var(--radius-sm);
}

.form-status[data-state="success"] {
  color: #29522a;
  background: #e9f2e4;
  padding: 14px;
  border: 1px solid #bed3b4;
  border-radius: var(--radius-sm);
}

/* =========================================================
   FOOTER & PRIVACY PAGE
   ========================================================= */
.site-footer {
  padding-top: 56px;
}

.footer-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 48px;
  padding-bottom: 42px;
  flex-wrap: wrap;
}

.footer-brand-col {
  max-width: 420px;
}

.footer-brand-col p {
  font-size: 13.5px;
  line-height: 1.68;
  margin-top: 12px;
}

.footer-app {
  padding: 18px 22px;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  font-size: 12.5px;
  color: var(--muted);
  transition: border-color 0.2s, transform 0.2s;
}

.footer-app:hover {
  border-color: var(--ink);
  transform: translateY(-2px);
}

.footer-app > strong {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  margin-top: 4px;
}

.footer-bottom {
  border-top: 1px solid var(--line-strong);
  display: flex;
  align-items: center;
  gap: 36px;
  padding-block: 22px 28px;
  font-size: 12.5px;
  color: #525f4e;
  flex-wrap: wrap;
}

.footer-bottom nav {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-bottom a:hover {
  color: var(--red);
}

.footer-note {
  margin-left: auto;
  font-weight: 600;
}

.privacy-main {
  max-width: 760px;
  padding-block: 70px 100px;
}

.privacy-main h1 {
  font-size: clamp(40px, 5vw, 58px);
  margin-bottom: 28px;
}

.privacy-main h2 {
  font-size: 23px;
  margin: 32px 0 12px;
}

.privacy-main p,
.privacy-main li {
  font-size: 15px;
  line-height: 1.85;
}

.privacy-main a {
  text-decoration: underline;
}

/* =========================================================
   KEYFRAMES & RESPONSIVE BREAKPOINTS
   ========================================================= */
@keyframes model-enter {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes ceiling-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

@media (max-width: 1180px) {
  .container {
    width: calc(100% - 56px);
  }
  .arch-badge {
    display: none;
  }
  .desktop-nav {
    gap: 18px;
  }
  .desktop-nav a {
    font-size: 12.5px;
  }
  .header-actions {
    gap: 12px;
  }
  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-description {
    max-width: 620px;
  }
  .bento-grid {
    grid-template-columns: 1fr 1fr;
  }
  .capability-card,
  .capability-card.bento-wide {
    grid-column: span 1;
  }
  .bento-split {
    grid-template-columns: 1fr;
  }
  .sandbox-workbench {
    grid-template-columns: 1fr;
  }
  .audience-layout,
  .workflow-layout,
  .why-layout,
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 1040px) {
  .desktop-nav,
  .header-demo {
    display: none;
  }
  .header-actions {
    margin-left: auto;
  }
  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  .header-inner {
    height: 76px;
  }
  .section-space {
    padding-block: 80px;
  }
  .section-heading {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
  }
  .section-heading > p {
    max-width: 560px;
  }
  .audience-panel {
    grid-template-columns: 1fr;
    padding: 28px;
  }
  .faq-section {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

@media (max-width: 680px) {
  html {
    scroll-padding-top: 86px;
  }
  .container {
    width: calc(100% - 32px);
  }
  .arch-badge,
  .viewport-coords > span:not(.visual-sample) {
    display: none;
  }
  .wordmark > span {
    font-size: 21px;
  }
  .app-link span {
    font-size: 12px;
  }
  .hero {
    padding-block: 32px 48px;
  }
  .persona-pills,
  .bento-grid,
  .preset-buttons,
  .toggle-buttons,
  .primitive-grid,
  .comparison-card,
  .form-row {
    grid-template-columns: 1fr;
  }
  .room-canvas {
    min-height: 360px;
  }
  .room-model {
    top: 18px;
    max-height: 350px;
  }
  .assembly-note {
    left: 12px;
    right: 12px;
    bottom: 26px;
    padding: 12px;
  }
  .note-icon {
    display: none;
  }
  .preview-tabs {
    grid-template-columns: 1fr;
  }
  .preview-tabs button {
    border-right: 0;
    border-bottom: 1px solid #d5decb;
  }
  .sandbox-workbench,
  .sandbox-controls,
  .sandbox-output,
  .contact-form {
    padding: 18px;
  }
  .sim-table th:nth-child(2),
  .sim-table td:nth-child(2) {
    display: none;
  }
  .mock-design,
  .mock-files {
    grid-template-columns: 1fr;
  }
  .mock-tree {
    flex-direction: column;
    align-items: stretch;
  }
  .mock-tree > span {
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  .button:hover,
  .capability-card:hover {
    transform: none;
  }
}