/* ============================================================
   use-cases.css — Shared styles for all use case pages
   AI Sidekick · ai-sidekick.io
   Black theme, Satoshi font, fully responsive
   ============================================================ */

/* === CSS VARIABLES === */
:root {
  --bg:               #000000;
  --card-bg:          #111111;
  --card-border:      #222222;
  --card-hover-border:#444444;
  --text:             #f5f5f5;
  --text-2:           #a3a3a3;
  --text-3:           #737373;
  --accent-blue:      #3b82f6;
  --accent-green:     #22c55e;
  --accent-orange:    #f59e0b;
  --nav-bg:           rgba(0, 0, 0, 0.85);
  --nav-border:       rgba(255, 255, 255, 0.08);
  --sans:             'Satoshi', 'DM Sans', system-ui, sans-serif;
  --max-w:            1200px;
  --content-w:        860px;
  --radius:           16px;
  --radius-sm:        8px;
  --ease:             cubic-bezier(0.4, 0, 0.2, 1);
  --nav-h:            64px;
}

/* === RESET & BASE === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding-top: var(--nav-h);
  min-height: 100vh;
}

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

img, svg {
  display: block;
  max-width: 100%;
}

ul, ol {
  list-style: none;
}

button {
  font-family: var(--sans);
  cursor: pointer;
  border: none;
  background: none;
}

/* === LAYOUT UTILITIES === */
.w {
  width: min(var(--max-w), 92%);
  margin-inline: auto;
}

.w-content {
  width: min(var(--content-w), 92%);
  margin-inline: auto;
}

/* === NAV === */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--nav-border);
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
}

nav .w {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: min(var(--max-w), 92%);
}

/* Logo */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text);
  white-space: nowrap;
  flex-shrink: 0;
}

.logo img {
  height: 22px;
  width: auto;
}

/* Desktop nav links */
.nav-r {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}

.nav-r a:not(.btn-nav),
.nav-dd-trigger {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-2);
  transition: color 0.25s var(--ease);
  background: none;
  border: none;
  padding: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.nav-r a:not(.btn-nav):hover,
.nav-dd-trigger:hover {
  color: var(--text);
}

/* Nav CTA button */
.btn-nav {
  display: inline-flex;
  align-items: center;
  padding: 0.6rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: #000;
  background: var(--text);
  border-radius: 100px;
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
}

.btn-nav:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* === NAV DROPDOWN === */
.nav-dd {
  position: relative;
}

.nav-dd-trigger {
  cursor: pointer;
}

.nav-dd-trigger svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 0.25s var(--ease);
  flex-shrink: 0;
}

.nav-dd:hover .nav-dd-trigger svg,
.nav-dd.open .nav-dd-trigger svg {
  transform: rotate(180deg);
}

.nav-dd-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  min-width: 240px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
  z-index: 200;
}

.nav-dd:hover .nav-dd-menu,
.nav-dd.open .nav-dd-menu {
  opacity: 1;
  pointer-events: all;
  transform: translateX(-50%) translateY(0);
}

.nav-dd-menu-inner {
  background: #1a1a1a;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 14px;
  padding: 0.5rem;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
}

.nav-dd-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  transition: background 0.2s var(--ease);
  text-decoration: none;
}

.nav-dd-item:hover {
  background: rgba(255, 255, 255, 0.06);
}

.nav-dd-item-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}

.nav-dd-item-desc {
  font-size: 0.72rem;
  color: var(--text-3);
}

/* === HAMBURGER BUTTON === */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 4px;
  background: none;
  border: none;
  z-index: 1001;
  flex-shrink: 0;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s var(--ease);
  transform-origin: center;
}

.nav-hamburger.open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.nav-hamburger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.nav-hamburger.open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* === MOBILE NAV OVERLAY === */
.mobile-nav {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.97);
  z-index: 9998;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s var(--ease);
}

.mobile-nav.open {
  opacity: 1;
  pointer-events: all;
}

.mobile-nav-close {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  color: var(--text-2);
  transition: color 0.2s;
}

.mobile-nav-close:hover {
  color: var(--text);
}

.mobile-nav-close svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  display: block;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.75rem;
}

.mobile-nav-links a {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-2);
  transition: color 0.2s var(--ease);
  text-decoration: none;
}

.mobile-nav-links a:hover {
  color: var(--text);
}

.mobile-nav-cta {
  margin-top: 1.5rem;
  padding: 0.85rem 2.25rem;
  font-size: 1rem;
  font-weight: 700;
  color: #000;
  background: var(--text);
  border-radius: 100px;
  text-decoration: none;
  transition: opacity 0.2s;
}

.mobile-nav-cta:hover {
  opacity: 0.9;
}

/* === BREADCRUMB === */
.breadcrumb {
  padding: 1.25rem 0 0;
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem;
  font-size: 0.8rem;
  color: var(--text-3);
}

.breadcrumb-list a {
  color: var(--text-3);
  transition: color 0.2s;
}

.breadcrumb-list a:hover {
  color: var(--text-2);
}

.breadcrumb-sep {
  color: var(--text-3);
  font-size: 0.75rem;
  opacity: 0.5;
}

.breadcrumb-current {
  color: var(--text-2);
}

/* === HERO SECTION === */
.hero {
  padding: 5rem 0 4rem;
  text-align: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 1.25rem;
}

.hero-eyebrow-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-blue);
  display: inline-block;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 1.25rem;
  max-width: 800px;
  margin-inline: auto;
}

.hero-desc {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-2);
  max-width: 600px;
  margin-inline: auto;
  margin-bottom: 2rem;
  line-height: 1.65;
}

.hero-updated {
  font-size: 0.8rem;
  color: var(--text-3);
  opacity: 0.6;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  flex-wrap: wrap;
  margin-top: 2.5rem;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
}

.hero-stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
}

.hero-stat-label {
  font-size: 0.75rem;
  color: var(--text-3);
  text-align: center;
}

/* === SEARCH BAR === */
.search-wrap {
  padding: 0 0 3rem;
}

.search-inner {
  position: relative;
  max-width: 640px;
  margin-inline: auto;
}

.search-icon {
  position: absolute;
  left: 1.1rem;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--text-3);
}

.search-icon svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.search-input {
  width: 100%;
  padding: 0.9rem 3rem 0.9rem 2.75rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 100px;
  font-family: var(--sans);
  font-size: 0.95rem;
  color: var(--text);
  outline: none;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
  -webkit-appearance: none;
}

.search-input::placeholder {
  color: var(--text-3);
}

.search-input:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.search-clear {
  position: absolute;
  right: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  padding: 4px;
  cursor: pointer;
  color: var(--text-3);
  display: none;
  transition: color 0.2s;
  border-radius: 50%;
}

.search-clear:hover {
  color: var(--text-2);
}

.search-clear svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  display: block;
}

.search-clear.visible {
  display: flex;
  align-items: center;
}

/* === SECTION LABELS === */
.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 0.75rem;
}

/* === CARD GRID === */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.card-grid-empty {
  grid-column: 1 / -1;
  padding: 3rem;
  text-align: center;
  color: var(--text-3);
  font-size: 0.95rem;
}

/* === CARD === */
.card {
  display: flex;
  flex-direction: column;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
  position: relative;
  overflow: hidden;
}

.card:hover {
  border-color: var(--card-hover-border);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.card-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  margin-bottom: 1rem;
  flex-shrink: 0;
}

.card-icon svg {
  width: 20px;
  height: 20px;
  stroke: var(--text-2);
  fill: none;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.card-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.4rem;
  line-height: 1.35;
}

.card-desc {
  font-size: 0.825rem;
  color: var(--text-3);
  line-height: 1.55;
  flex: 1;
}

.card-tag {
  display: inline-flex;
  align-items: center;
  margin-top: 1rem;
  padding: 0.25rem 0.65rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: 100px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-3);
  border: 1px solid var(--card-border);
}

.card-arrow {
  position: absolute;
  bottom: 1.25rem;
  right: 1.25rem;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--card-border);
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
  color: var(--text-3);
}

.card:hover .card-arrow {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--card-hover-border);
  transform: translateX(2px);
}

.card-arrow svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* === INDIVIDUAL PAGE CONTENT === */
.page-header {
  padding: 3rem 0 2.5rem;
  border-bottom: 1px solid var(--card-border);
  margin-bottom: 3rem;
}

.page-header .breadcrumb {
  padding-top: 0;
  margin-bottom: 1.5rem;
}

.page-header h1 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 1rem;
}

.page-header .lead {
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  color: var(--text-2);
  line-height: 1.7;
  max-width: 680px;
}

.content-section {
  padding: 3rem 0;
  border-bottom: 1px solid var(--card-border);
}

.content-section:last-of-type {
  border-bottom: none;
}

.content-section h2 {
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1rem;
  line-height: 1.25;
}

.content-section h3 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.6rem;
  margin-top: 1.75rem;
  line-height: 1.3;
}

.content-section p {
  font-size: 1.05rem;
  color: var(--text-2);
  line-height: 1.8;
  margin-bottom: 1.15rem;
}

.content-section p:last-child {
  margin-bottom: 0;
}

.content-section ul,
.content-section ol {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin: 1.5rem 0;
  counter-reset: step-counter;
}

/* Unordered list items - bullet style */
.content-section ul li {
  display: flex;
  gap: 0.85rem;
  align-items: flex-start;
  font-size: 1.05rem;
  color: var(--text-2);
  line-height: 1.7;
}

.content-section ul li::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-blue);
  flex-shrink: 0;
  margin-top: 0.55rem;
}

/* Ordered list items - numbered step cards */
.content-section ol li {
  counter-increment: step-counter;
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  font-size: 1.05rem;
  color: var(--text-2);
  line-height: 1.7;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
}

.content-section ol li::before {
  content: counter(step-counter);
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent-blue);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.content-section ol li strong {
  color: var(--text);
  display: block;
  margin-bottom: 0.25rem;
  font-size: 1.1rem;
}

/* === STEPS TABLE === */
.steps-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.steps-table thead th {
  padding: 0.85rem 1.25rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-3);
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--card-border);
  text-align: left;
}
.steps-table thead th:first-child {
  width: 48px;
  text-align: center;
}
.steps-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--card-border);
  vertical-align: top;
  font-size: 1rem;
  color: var(--text-2);
  line-height: 1.65;
}
.steps-table tr:last-child td {
  border-bottom: none;
}
.steps-table .step-num {
  text-align: center;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--accent-blue);
  width: 48px;
}
.steps-table .step-title {
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
}

/* === ANSWER CAPSULE === */
.answer-capsule {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-left: 3px solid var(--accent-blue);
  border-radius: var(--radius-sm);
  padding: 1.25rem 1.5rem;
  margin: 1.5rem 0;
}

.answer-capsule-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-blue);
  margin-bottom: 0.5rem;
}

.answer-capsule p {
  font-size: 1.05rem;
  color: var(--text);
  line-height: 1.75;
  margin: 0;
}

/* === COMPARISON TABLE === */
.table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1.5rem 0;
  border-radius: var(--radius-sm);
  border: 1px solid var(--card-border);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  min-width: 500px;
}

.comparison-table th {
  background: var(--card-bg);
  color: var(--text-2);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.9rem 1.25rem;
  text-align: left;
  border-bottom: 1px solid var(--card-border);
  white-space: nowrap;
}

.comparison-table td {
  padding: 0.85rem 1.25rem;
  color: var(--text-2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  vertical-align: top;
  line-height: 1.5;
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

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

.comparison-table td:first-child {
  color: var(--text);
  font-weight: 500;
}

.comparison-table .check {
  color: var(--accent-green);
  font-size: 1rem;
}

.comparison-table .cross {
  color: var(--text-3);
  font-size: 1rem;
}

.comparison-table .highlight-col {
  background: rgba(59, 130, 246, 0.06);
}

/* === FEATURE CARDS GRID (2-col) === */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
  margin: 1.5rem 0;
}

.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.feature-card:hover {
  border-color: var(--card-hover-border);
  transform: translateY(-2px);
}

.feature-card-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.05);
  margin-bottom: 0.85rem;
}

.feature-card-icon svg {
  width: 18px;
  height: 18px;
  stroke: var(--text-2);
  fill: none;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.feature-card h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.4rem;
  line-height: 1.3;
  margin-top: 0;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--text-3);
  line-height: 1.6;
  margin: 0;
}

/* === SIMULATION WALKTHROUGH === */
.simulation {
  margin: 2rem 0;
  position: relative;
}

.sim-timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.sim-timeline::before {
  content: '';
  position: absolute;
  left: 19px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--card-border) 5%, var(--card-border) 95%, transparent);
  z-index: 0;
}

.sim-step {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  position: relative;
  z-index: 1;
  padding: 1.25rem 0;
}

.sim-step:last-child {
  padding-bottom: 0;
}

.sim-step-num {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  flex-shrink: 0;
  border: 2px solid transparent;
  position: relative;
  background: var(--bg);
  z-index: 2;
}

.sim-step.actor-customer .sim-step-num {
  color: var(--accent-blue);
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.12);
}

.sim-step.actor-ai .sim-step-num {
  color: var(--accent-green);
  border-color: var(--accent-green);
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.12);
}

.sim-step.actor-owner .sim-step-num {
  color: var(--accent-orange);
  border-color: var(--accent-orange);
  box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.12);
}

.sim-step-body {
  flex: 1;
  padding-top: 0.45rem;
}

.sim-step-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.25rem;
  line-height: 1.35;
}

.sim-step-desc {
  font-size: 0.95rem;
  color: var(--text-3);
  line-height: 1.6;
}

/* === SIMULATION BADGES === */
.sim-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.sim-badge-customer {
  background: rgba(59, 130, 246, 0.12);
  color: var(--accent-blue);
  border: 1px solid rgba(59, 130, 246, 0.25);
}

.sim-badge-ai {
  background: rgba(34, 197, 94, 0.12);
  color: var(--accent-green);
  border: 1px solid rgba(34, 197, 94, 0.25);
}

.sim-badge-owner {
  background: rgba(245, 158, 11, 0.12);
  color: var(--accent-orange);
  border: 1px solid rgba(245, 158, 11, 0.25);
}

/* === QUOTED TEXT BUBBLES === */
.sim-bubble {
  display: inline-block;
  margin-top: 0.6rem;
  padding: 0.65rem 1rem;
  border-radius: 12px;
  font-size: 0.85rem;
  font-style: italic;
  line-height: 1.55;
  max-width: 480px;
}

.sim-bubble-customer {
  background: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.2);
  color: #93c5fd;
}

.sim-bubble-ai {
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.2);
  color: #86efac;
}

.sim-bubble-owner {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.2);
  color: #fcd34d;
}

/* === FAQ SECTION === */
.faq-section {
  padding: 3rem 0;
}

.faq-section h2 {
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 2rem;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.faq-item {
  border-bottom: 1px solid var(--card-border);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: var(--card-bg);
  text-align: left;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  transition: background 0.2s var(--ease);
  border: none;
  font-family: var(--sans);
}

.faq-question:hover {
  background: none;
  cursor: default;
}

.faq-question svg {
  display: none; /* No accordion, no chevron */
  width: 18px;
  height: 18px;
  stroke: var(--text-3);
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
  transition: transform 0.25s var(--ease), stroke 0.25s;
}

/* chevron rotation removed - FAQs always visible */

.faq-answer {
  /* Always visible - no accordion. Better for SEO and Ctrl+F search. */
}

.faq-answer-inner {
  padding: 0.75rem 1.5rem 1.25rem;
  font-size: 1rem;
  color: var(--text-2);
  line-height: 1.75;
  background: var(--card-bg);
}

/* faq-item.open no longer needed - FAQs always visible */

/* === RELATED USE CASES GRID === */
.related-section {
  padding: 3rem 0;
  border-top: 1px solid var(--card-border);
}

.related-section h2 {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 1.5rem;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.related-grid .uc-card {
  display: block;
  padding: 1.5rem;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  text-decoration: none;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.related-grid .uc-card:hover {
  border-color: var(--card-hover);
  transform: translateY(-3px);
  text-decoration: none;
}
.related-grid .uc-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.5rem;
  line-height: 1.35;
}
.related-grid .uc-card .uc-card-desc {
  font-size: 0.88rem;
  color: var(--text-3);
  line-height: 1.5;
}

/* === CTA SECTION === */
.cta-section {
  padding: 4rem 0;
  text-align: center;
}

.cta-inner {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: calc(var(--radius) * 1.5);
  padding: 3.5rem 2rem;
  max-width: 680px;
  margin-inline: auto;
  position: relative;
  overflow: hidden;
}

.cta-inner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(59, 130, 246, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.cta-inner h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.85rem;
  position: relative;
}

.cta-inner p {
  font-size: 1rem;
  color: var(--text-2);
  line-height: 1.65;
  max-width: 500px;
  margin-inline: auto;
  margin-bottom: 2rem;
  position: relative;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1.1rem 2.6rem;
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 700;
  color: #000;
  background: #fff;
  border-radius: 100px;
  border: none;
  outline: 2px solid #fff;
  outline-offset: 3px;
  cursor: pointer;
  transition: all 0.35s var(--ease);
  text-decoration: none;
}

.btn-primary:hover {
  outline-offset: 5px;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,255,255,0.1);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 2.25rem;
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-2);
  background: transparent;
  border: 1px solid var(--card-border);
  border-radius: 100px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, transform 0.2s;
  text-decoration: none;
}

.btn-secondary:hover {
  color: var(--text);
  border-color: var(--card-hover-border);
  transform: translateY(-1px);
}

.cta-note {
  margin-top: 1rem;
  font-size: 0.78rem;
  color: var(--text-3);
  position: relative;
}

/* === FOOTER (matches homepage layout) === */
footer {
  padding: 3rem 0;
  border-top: 1px solid var(--card-border);
}
footer .w {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}
footer .logo img { height: 18px; }
.f-links {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  justify-content: center;
}
.f-links a {
  font-size: 0.78rem;
  color: var(--text-3);
  transition: color 0.2s;
  text-decoration: none;
}
.f-links a:hover { color: #fff; }
.f-copy {
  font-size: 0.72rem;
  color: var(--text-3);
  opacity: 0.5;
}

/* === SCROLL REVEAL === */
.rv {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s var(--ease), transform 0.55s var(--ease);
}

.rv.show {
  opacity: 1;
  transform: translateY(0);
}

.rv-stagger > * {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.45s var(--ease), transform 0.45s var(--ease);
}

.rv-stagger.show > *:nth-child(1) { opacity: 1; transform: none; transition-delay: 0s; }
.rv-stagger.show > *:nth-child(2) { opacity: 1; transform: none; transition-delay: 0.07s; }
.rv-stagger.show > *:nth-child(3) { opacity: 1; transform: none; transition-delay: 0.14s; }
.rv-stagger.show > *:nth-child(4) { opacity: 1; transform: none; transition-delay: 0.21s; }
.rv-stagger.show > *:nth-child(5) { opacity: 1; transform: none; transition-delay: 0.28s; }
.rv-stagger.show > *:nth-child(6) { opacity: 1; transform: none; transition-delay: 0.35s; }
.rv-stagger.show > *:nth-child(7) { opacity: 1; transform: none; transition-delay: 0.42s; }
.rv-stagger.show > *:nth-child(8) { opacity: 1; transform: none; transition-delay: 0.49s; }
.rv-stagger.show > *:nth-child(9) { opacity: 1; transform: none; transition-delay: 0.56s; }

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

.text-muted    { color: var(--text-3); }
.text-accent-blue   { color: var(--accent-blue); }
.text-accent-green  { color: var(--accent-green); }
.text-accent-orange { color: var(--accent-orange); }

.divider {
  height: 1px;
  background: var(--card-border);
  border: none;
  margin: 2.5rem 0;
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--card-border);
  color: var(--text-3);
}

.filter-bar {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.filter-btn {
  padding: 0.45rem 1rem;
  font-family: var(--sans);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-3);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 100px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.filter-btn:hover {
  color: var(--text);
  border-color: var(--card-hover-border);
}

.filter-btn.active {
  color: var(--text);
  border-color: var(--accent-blue);
  background: rgba(59, 130, 246, 0.1);
}

a.cite {
  color: var(--text-3);
  font-size: 0.75em;
  vertical-align: super;
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s;
}

a.cite:hover {
  color: var(--accent-blue);
}

/* ============================================================
   RESPONSIVE BREAKPOINTS
   ============================================================ */

/* 900px: tablet grid */
@media (max-width: 900px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .f-links {
    gap: 1rem;
  }
}

/* 768px: hamburger nav */
@media (max-width: 768px) {
  .nav-hamburger {
    display: flex;
  }

  .nav-r {
    display: none;
  }

  .hero {
    padding: 3.5rem 0 3rem;
  }

  .hero-stats {
    gap: 1.5rem;
  }

  .page-header {
    padding: 2rem 0 1.75rem;
  }

  .cta-inner {
    padding: 2.5rem 1.5rem;
  }

  .footer-inner {
    flex-direction: column;
    gap: 2rem;
  }

  .f-copy {
    text-align: center;
    gap: 0.75rem;
  }
}

/* 600px: feature grid 1 col */
@media (max-width: 600px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .faq-question {
    padding: 1rem 1.25rem;
    font-size: 0.9rem;
  }

  .faq-answer-inner {
    padding: 0 1.25rem 1rem;
  }
}

/* 540px: cards single column */
@media (max-width: 540px) {
  .card-grid {
    grid-template-columns: 1fr;
  }

  .related-grid {
    grid-template-columns: 1fr;
  }

  .sim-step-num {
    width: 32px;
    height: 32px;
    font-size: 0.72rem;
  }

  .sim-timeline::before {
    left: 15px;
  }

  .sim-step {
    gap: 1rem;
  }

  .table-wrap::before {
    content: 'Scroll to see more \2192';
    display: block;
    font-size: 0.7rem;
    color: var(--text-3);
    padding: 0.4rem 0.75rem;
    background: var(--bg);
    border-bottom: 1px solid var(--card-border);
  }

  .filter-bar {
    gap: 0.4rem;
  }

  .filter-btn {
    font-size: 0.75rem;
    padding: 0.4rem 0.85rem;
  }
}

/* 480px: smallest text adjustments */
@media (max-width: 480px) {
  body {
    font-size: 0.9375rem;
  }

  .hero-eyebrow {
    font-size: 0.7rem;
  }

  .hero-desc {
    font-size: 0.95rem;
  }

  .card {
    padding: 1.25rem;
  }

  .cta-inner {
    padding: 2rem 1.25rem;
  }

  .sim-bubble {
    font-size: 0.8rem;
    padding: 0.55rem 0.85rem;
  }

  .hero-stat-value {
    font-size: 1.25rem;
  }

  .f-links {
    gap: 0.75rem;
  }

  .btn-primary,
  .btn-secondary {
    padding: 0.8rem 1.75rem;
    font-size: 0.875rem;
  }
}