/* ==================================================
   INDUSTRIAL AIR — Components
   Adapted from Stitch component styling.
   ================================================== */

/* ==================================================
   SIGNATURE AIRFLOW SHAPES
   ================================================== */

.airflow-shape {
  position: absolute;
  pointer-events: none;
  opacity: 0.6;
}

.airflow-hero-bg {
  position: absolute;
  inset: 0;
  background: var(--ia-airflow-hero);
  z-index: 0;
}

.airflow-ribbon {
  position: absolute;
  height: 120px;
  width: 100%;
  background: var(--ia-airflow-flow);
  opacity: 0.15;
  filter: blur(60px);
  transform: skewY(-3deg);
}

.airflow-curve-top {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: var(--ia-airflow-curve);
  border-radius: 0 0 50% 50% / 0 0 30% 30%;
  filter: blur(40px);
}

.airflow-curve-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 200px;
  background: var(--ia-airflow-curve);
  border-radius: 50% 50% 0 0 / 30% 30% 0 0;
  filter: blur(40px);
}

/* ==================================================
   EDITORIAL LAYOUT CLASSES
   ================================================== */

.editorial-hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.editorial-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .editorial-split {
    grid-template-columns: 1fr 1fr;
  }
}

.editorial-image-wrapper {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-2xl);
}

.editorial-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.editorial-image-wrapper:hover img {
  transform: scale(1.03);
}

/* ==================================================
   FULL-WIDTH SECTIONS
   ================================================== */

.section-full-width {
  position: relative;
  width: 100%;
  padding: var(--space-3xl) 0;
}

.section-dark-premium {
  background: var(--ia-dark-surface-0);
  color: var(--ia-on-surface-light);
}

/* ==================================================
   PREMIUM TYPOGRAPHY TREATMENT
   ================================================== */

.display-hero-lead {
  font-family: var(--font-display);
  font-weight: var(--font-display-bold);
  font-size: var(--text-display-hero);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ia-on-surface);
}

.display-hero-lead span {
  background: var(--ia-gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.editorial-headline {
  font-family: var(--font-display);
  font-weight: var(--font-display-bold);
  font-size: var(--text-headline-xl);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ia-on-surface);
}

/* ==================================================
   SURFACE CARDS (premium light theme)
   ================================================== */

.card {
  background: var(--color-surface);
  border: 1px solid var(--ia-line-dark);
  border-radius: 0.75rem;
  padding: var(--space-lg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.card--surface {
  background: var(--ia-surface-50);
  border-color: var(--ia-line);
}

.card--elevated {
  background: linear-gradient(160deg, rgba(0,210,255,0.03), rgba(255,255,255,0) 60%), var(--color-surface);
  border-color: var(--ia-line);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.card--interactive {
  transition: border-color 0.3s var(--ia-ease), background 0.3s var(--ia-ease), transform 0.3s var(--ia-ease);
}

.card--interactive:hover {
  border-color: var(--ia-cyan);
  background: linear-gradient(160deg, rgba(0,210,255,0.06), rgba(255,255,255,0) 60%), var(--color-surface);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 210, 255, 0.12);
}

.card--tall {
  padding: var(--space-xl);
}

.card--compact {
  padding: var(--space-md);
}

.card--borderless {
  border: 0;
  padding: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.card--navy {
  background: var(--ia-dark-surface-0);
  border-color: var(--ia-line);
  color: var(--ia-on-surface-light);
}

.card--glass {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--ia-line);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
}

/* ==================================================
   BUTTONS (from Stitch register-trigger / contact-link pattern)
   ================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: 0;
  border-radius: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform 0.2s var(--ia-ease), box-shadow 0.2s var(--ia-ease), border-color 0.2s var(--ia-ease), background 0.2s var(--ia-ease);
  -webkit-tap-highlight-color: transparent;
  outline-offset: 2px;
}

.btn--primary {
  background: var(--ia-gradient-primary);
  color: var(--ia-navy-900);
  font-weight: 700;
  box-shadow: 0 10px 30px rgba(0, 210, 255, 0.25);
  border: 1px solid transparent;
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 36px rgba(0, 210, 255, 0.32);
}

.btn--primary:focus-visible {
  outline: var(--focus-ring);
}

.btn--secondary {
  background: transparent;
  color: var(--ia-on-surface-dim);
  border: 1px solid var(--ia-line);
}

.btn--secondary:hover {
  border-color: var(--ia-cyan);
  background: rgba(0, 210, 255, 0.05);
  transform: translateY(-1px);
}

.btn--secondary:focus-visible {
  outline: var(--focus-ring);
}

.btn--ghost {
  background: rgba(0, 210, 255, 0.08);
  color: var(--ia-on-surface-dim);
  border: 1px solid rgba(0, 210, 255, 0.2);
}

.btn--ghost:hover {
  background: rgba(0, 210, 255, 0.12);
  border-color: rgba(0, 210, 255, 0.4);
}

.btn--large {
  padding: 0.9375rem 1.75rem;
  font-size: 0.9375rem;
}

.btn--medium {
  padding: 0.75rem 1.25rem;
  font-size: 0.875rem;
}

.btn--small {
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
}

.btn--full {
  width: 100%;
}

.btn:disabled,
.btn[disabled] {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Arrow indicator (from Stitch enter-experience pattern) */
.btn--primary .btn-icon:after {
  content: "";
  position: relative;
  display: inline-block;
  width: 0.75rem;
  height: 0.75rem;
  border-top: 1px solid currentColor;
  border-right: 1px solid currentColor;
  transform: rotate(45deg);
}

/* ==================================================
   NAVIGATION (from Stitch site-header pattern)
   ================================================== */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 0 var(--margin-mobile);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 88px;
  background: linear-gradient(180deg, rgba(248,250,252,0.95), rgba(248,250,252,0.85));
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--ia-line-dark);
}

.nav-container {
  width: min(100% - 2rem, var(--container-max));
  margin: 0 auto;
  padding: 0 var(--margin-mobile);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (min-width: 768px) {
  .nav {
    padding: 0 var(--margin-desktop);
  }
  .nav-container {
    padding: 0;
  }
}

/* Brand identity (header) */
.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-logo {
  width: auto;
  height: auto;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-logo svg {
  width: 100%;
  height: 100%;
}

.nav-logo img.nav-logo-img {
  max-width: 180px;
  height: auto;
  width: auto;
  display: block;
}

@media (max-width: 767px) {
  .nav-logo img.nav-logo-img {
    max-width: 120px;
  }
}

.nav-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ia-on-surface);
}

.nav-tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ia-turquoise);
  opacity: 0.9;
}

.nav-menu-desktop {
  display: none;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Desktop navigation — full premium experience */
@media (min-width: 768px) {
  .nav-logo img.nav-logo-img {
    max-width: 200px;
  }

  .nav-menu-desktop {
    display: flex;
    align-items: center;
    gap: 1.5rem;
  }

  .nav-link {
    position: relative;
    font-family: var(--font-body);
    font-size: 0.8125rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ia-on-surface-dim);
    padding: 0.5rem 0;
    transition: color 0.2s var(--ia-ease);
  }

  .nav-link:hover {
    color: var(--ia-royal);
  }

  .nav-link--active {
    color: var(--ia-cyan);
  }

  .nav-link--active:after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--ia-gradient-primary);
  }
}

/* Mobile menu trigger */
.nav-menu-trigger {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ia-on-surface-dim);
  border: 1px solid var(--ia-line);
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  background: var(--color-surface);
  backdrop-filter: blur(10px);
}

.nav-menu-trigger:hover {
  border-color: var(--ia-cyan);
  color: var(--ia-cyan);
}

.nav-menu-trigger i {
  display: block;
  content: "";
  width: 16px;
  height: 1px;
  background: currentColor;
  transition: transform 0.35s var(--ia-ease);
}

.nav-menu-trigger[aria-expanded="true"] i {
  transform: rotate(45deg);
}

.nav-menu-trigger[aria-expanded="true"] i:after {
  content: "";
  position: absolute;
  right: 0;
  top: -3px;
  width: 6px;
  height: 6px;
  border-top: 1px solid currentColor;
  border-right: 1px solid currentColor;
  transform: rotate(-90deg);
}

/* Mobile navigation — app-like bottom dock (premium light theme) */
.nav-mobile-dock {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  display: flex;
  justify-content: space-around;
  align-items: center;
  height: 64px;
  padding: 0.5rem;
  background: linear-gradient(180deg, rgba(248,250,252,0.98), rgba(241,245,249,0.99));
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-top: 1px solid var(--ia-line-dark);
}

@media (min-width: 768px) {
  .nav-mobile-dock {
    display: none;
  }
}

.nav-mobile-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5px;
  padding: 0.5rem 0.25rem;
  font-family: var(--font-body);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ia-on-surface-variant);
  transition: color 0.2s var(--ia-ease);
}

.nav-mobile-item--active {
  color: var(--ia-cyan);
}

.nav-mobile-item:hover {
  color: var(--ia-on-surface);
}

.nav-mobile-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  font-size: 1.125rem;
}

/* Mobile drawer navigation overlay */
.nav-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(90vw, 420px);
  height: 100vh;
  z-index: 200;
  background: var(--color-background);
  border-left: 1px solid var(--ia-line-dark);
  backdrop-filter: blur(24px);
  transform: translateX(100%);
  transition: transform 0.45s var(--ia-ease);
  padding: 5rem 1.5rem 2rem;
  overflow-y: auto;
}

.nav-drawer.is-open {
  transform: translateX(0);
}

.nav-drawer-backdrop {
  position: fixed;
  inset: 0;
  z-index: 150;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.45s var(--ia-ease);
}

.nav-drawer-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

.nav-drawer-close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--ia-line);
  border-radius: 0.375rem;
  background: var(--color-surface);
  color: var(--ia-on-surface-variant);
  font-size: 1.25rem;
  cursor: pointer;
}

.nav-drawer-close:hover {
  border-color: var(--ia-cyan);
  color: var(--ia-cyan);
}

.nav-drawer-menu {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.nav-drawer-link {
  display: block;
  padding: 0.875rem 1rem;
  border-radius: 0.5rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--ia-on-surface-dim);
  transition: background 0.2s var(--ia-ease), color 0.2s var(--ia-ease);
}

.nav-drawer-link:hover {
  background: var(--color-surface);
  color: var(--ia-cyan);
}

.nav-drawer-link--active {
  background: var(--color-surface-high);
  color: var(--ia-cyan);
  border: 1px solid var(--ia-line-strong);
}

/* ==================================================
   FORM CONTROLS (from Stitch register-form pattern)
   ================================================== */

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-field label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(230, 234, 239, 0.78);
}

.required-mark {
  color: var(--ia-cyan);
}

.optional-mark {
  color: var(--ia-on-surface-variant);
  font-weight: 400;
}

.form-input {
  width: 100%;
  padding: 0.8125rem 0.875rem;
  border: 1px solid var(--ia-line-dark);
  border-radius: 0.5rem;
  background: var(--color-surface);
  color: var(--ia-on-surface-dim);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 400;
  transition: border-color 0.25s var(--ia-ease), background 0.2s var(--ia-ease);
  outline: none;
}

.form-input:focus {
  outline: var(--focus-ring);
  outline-offset: var(--focus-ring-offset);
  border-color: var(--ia-cyan);
}

.form-input[aria-invalid="true"] {
  border-color: #e39a8f;
}

.form-input::placeholder {
  color: var(--ia-on-surface-variant);
  opacity: 0.5;
}

.form-select {
  width: 100%;
  padding: 0.8125rem 0.875rem;
  border: 1px solid var(--ia-line-dark);
  border-radius: 0.5rem;
  background: var(--color-surface);
  color: var(--ia-on-surface-dim);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 400;
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, rgba(51,65,85,0.6) 50%),
    linear-gradient(135deg, rgba(51,65,85,0.6) 50%, transparent 50%);
  background-position: calc(100% - 12px) 50%, calc(100% - 8px) 50%;
  background-size: 6px 6px;
  background-repeat: no-repeat;
  transition: border-color 0.25s var(--ia-ease), background 0.2s var(--ia-ease);
  outline: none;
}

.form-select:focus {
  outline: var(--focus-ring);
  outline-offset: var(--focus-ring-offset);
  border-color: var(--ia-cyan);
}

.form-textarea {
  width: 100%;
  padding: 0.8125rem 0.875rem;
  border: 1px solid var(--ia-line-dark);
  border-radius: 0.5rem;
  background: var(--color-surface);
  color: var(--ia-on-surface-dim);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 400;
  line-height: 1.5;
  resize: vertical;
  min-height: 88px;
  transition: border-color 0.25s var(--ia-ease), background 0.2s var(--ia-ease);
  outline: none;
  outline-offset: 0;
}

.form-textarea:focus {
  outline: var(--focus-ring);
  outline-offset: var(--focus-ring-offset);
  border-color: var(--ia-cyan);
}

.field-error {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.71875rem;
  line-height: 1.4;
  color: #e39a8f;
  min-height: 1.2em;
}

.field-hint {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.6875rem;
  line-height: 1.5;
  color: var(--ia-on-surface-variant);
}

.form-honeypot {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  margin: -1px !important;
  padding: 0 !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  clip-path: inset(50%) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* ==================================================
   ENVIRONMENT CARDS (from Stitch Relationship-Based Nodes)
   ================================================== */

.env-card {
  background: var(--color-surface);
  border: 1px solid var(--ia-line-dark);
  border-radius: 0.75rem;
  padding: var(--space-lg);
  text-align: center;
  backdrop-filter: blur(16px);
  transition: border-color 0.3s var(--ia-ease), background 0.3s var(--ia-ease), transform 0.3s var(--ia-ease);
  isolation: isolate;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

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

.env-card--active {
  border-color: var(--ia-cyan);
  box-shadow: 0 0 32px -6px rgba(0, 210, 255, 0.2);
  background: rgba(0, 210, 255, 0.03);
}

.env-card-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.env-card-icon svg {
  width: 32px;
  height: 32px;
  fill: var(--ia-cyan);
}

.env-card-title {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ia-on-surface);
  margin: 0;
}

.env-card-desc {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  color: var(--ia-on-surface-variant);
  line-height: 1.5;
  margin: 0;
  flex-grow: 1;
}

/* ==================================================
   SERVICE CHIPS (from Stitch SmartApp list items)
   ================================================== */

.service-chip {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 0.875rem;
  border-radius: 0.375rem;
  background: var(--color-surface);
  border: 1px solid var(--ia-line-dark);
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  transition: border-color 0.3s var(--ia-ease), background 0.3s var(--ia-ease);
}

.service-chip:hover {
  border-color: var(--ia-cyan);
  background: rgba(0, 210, 255, 0.05);
}

.service-chip .chip-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  font-size: 0.9375rem;
  color: var(--ia-cyan);
}

/* ==================================================
   STATUS BADGES (from Stitch status indicators)
   ================================================== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.1875rem 0.5rem;
  border-radius: 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.badge--cyan {
  background: rgba(0, 210, 255, 0.15);
  border: 1px solid rgba(0, 210, 255, 0.3);
  color: var(--ia-cyan);
}

.badge--green {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--ia-green);
}

.badge--amber {
  background: rgba(255, 193, 7, 0.15);
  border: 1px solid rgba(255, 193, 7, 0.3);
  color: #ffc107;
}

.badge--outline {
  background: transparent;
  border: 1px solid var(--ia-line-dark);
  color: var(--ia-on-surface-variant);
}

.badge-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  flex: 0 0 auto;
}

/* ==================================================
   METRIC DISPLAY (from Stitch metric display pattern)
   ================================================== */

.metric-display {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-metric-display);
  line-height: 0.9;
  letter-spacing: -0.02em;
  color: var(--ia-on-surface);
}

.metric-gradient {
  color: transparent;
  background: var(--ia-gradient-primary);
  background-clip: text;
  -webkit-background-clip: text;
}

.metric-label {
  font-family: var(--font-mono);
  font-size: var(--text-label-caps);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ia-on-surface-variant);
}

.metric-sub {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ia-turquoise);
  opacity: 0.8;
}

/* ==================================================
   SECTION OVERLAY (from Stitch architectural panel pattern)
   ================================================== */

.section-accent {
  position: relative;
  padding: var(--space-2xl) 0;
}

.section-accent::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--ia-surface-50) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

.section-accent > * {
  position: relative;
  z-index: 1;
}

/* ==================================================
   STEP / WORKFLOW INDICATORS (from Stitch progress pattern)
   ================================================== */

.step-indicator {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
}

.step-indicator .step-number {
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 1px solid var(--ia-line-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ia-on-surface-variant);
  z-index: 1;
}

.step-indicator .step-line {
  flex: 1;
  height: 1px;
  margin-top: 12px;
  background: linear-gradient(90deg, var(--ia-cyan), var(--ia-turquoise), transparent);
  opacity: 0.3;
}

.step-indicator .step-content {
  flex: 1;
}

.step-indicator .step-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--ia-on-surface);
  margin-bottom: 0.25rem;
}

.step-indicator .step-desc {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  color: var(--ia-on-surface-variant);
  line-height: 1.5;
}

/* ==================================================
   QUOTE / CONTACT CTA (from Stitch register-callout pattern)
   ================================================== */

.cta-callout {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--ia-line-dark);
  border-radius: 0.75rem;
  padding: var(--space-xl);
  isolation: isolate;
}

.cta-callout--gradient {
  background: linear-gradient(160deg, rgba(0,210,255,0.04), rgba(255,255,255,0) 55%), var(--color-surface);
  border-color: var(--ia-line);
}

.cta-callout .cta-kicker {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--ia-turquoise);
  margin-bottom: var(--space-xs);
}

.cta-callout h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ia-on-surface);
  margin-bottom: var(--space-sm);
}

.cta-callout p {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ia-on-surface-variant);
  line-height: 1.6;
  margin-bottom: var(--space-lg);
  max-width: 38rem;
}

/* ==================================================
   FOOTER (from Stitch footer pattern)
   ================================================== */

.footer {
  width: 100%;
  background: var(--ia-dark-surface-0);
  border-top: 1px solid var(--ia-line);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-lg);
}

.footer-column h4 {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ia-on-surface-light);
  margin-bottom: var(--space-sm);
}

.footer-column ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-link {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  color: var(--ia-on-surface-light);
  transition: color 0.2s var(--ia-ease);
}

.footer-link:hover {
  color: var(--ia-cyan);
}

.footer-bottom {
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--ia-line);
  text-align: center;
}

.footer-bottom p {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--ia-on-surface-light);
}

.footer-placeholder {
  color: var(--ia-turquoise);
}

/* ==================================================
   AIRFLOW SVG DECORATION (from Stitch ribbon patterns)
   ================================================== */

.airflow-svg {
  position: absolute;
  width: 100%;
  height: 100%;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.airflow-svg--hero {
  opacity: 0.2;
  filter: blur(8px);
}

@media (prefers-reduced-motion: reduce) {
  .airflow-svg--hero {
    opacity: 0.1;
    filter: none;
  }
}

/* ==================================================
   TEMPERATURE VISUAL TREATMENT (from Stitch cooling transition)
   ================================================== */

.temperature-display {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2rem, 6vw, 4rem);
  line-height: 0.9;
  letter-spacing: -0.03em;
}

.temperature-display .digit {
  display: inline-block;
}

.temperature-display .celsius {
  font-size: 0.5em;
  vertical-align: super;
}

.temperature-hot {
  color: var(--ia-temp-hot);
}

.temperature-cold {
  color: var(--ia-on-surface);
  background: var(--ia-gradient-primary);
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
}

.temperature-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--ia-on-surface-variant);
  opacity: 0.5;
}

.temperature-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ia-turquoise);
}

/* ==================================================
   PHASE 2 — Reusable component classes
   Status pills, spec grids, tech-card, tabs, timelines
   ================================================== */

/* ---- Equipment / status pills ---- */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.1875rem 0.5rem;
  border-radius: 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.status--operational { background: rgba(16,185,129,0.12); border: 1px solid rgba(16,185,129,0.3); color: var(--ia-green); }
.status--service-due { background: rgba(255,193,7,0.12); border: 1px solid rgba(255,193,7,0.3); color: #ffc107; }
.status--recommend { background: rgba(0,210,255,0.12); border: 1px solid rgba(0,210,255,0.3); color: var(--ia-cyan); }
.status--fault { background: rgba(244,63,94,0.12); border: 1px solid rgba(244,63,94,0.3); color: #f43f5e; }
.status--scheduled { background: rgba(0,210,255,0.12); border: 1px solid rgba(0,210,255,0.3); color: var(--ia-cyan); }

/* ---- Spec grid (two-column: label / value) ---- */
.spec-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.375rem 1rem;
}
.spec-grid .spec-label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--ia-on-surface-variant);
}
.spec-grid .spec-value {
  font-size: 0.8125rem;
  color: var(--ia-on-surface-dim);
}

/* ---- Parts table ---- */
.parts-table { width: 100%; border-collapse: collapse; }
.parts-table th, .parts-table td { padding: 0.375rem 0.5rem; text-align: left; border-bottom: 1px solid var(--ia-line); font-size: 0.8125rem; }
.parts-table th {
  font-family: var(--font-mono); font-size: 0.6875rem; font-weight: 700;
  text-transform: uppercase; color: var(--ia-on-surface-variant);
}
.parts-table td { color: var(--ia-on-surface-dim); }

/* ---- Timeline ---- */
.timeline { position: relative; padding-left: 1.5rem; }
.timeline::before { content: ""; position: absolute; left: 6px; top: 0; bottom: 0; width: 2px; background: var(--ia-line); }
.timeline-item { position: relative; margin-bottom: var(--space-lg); }
.timeline-item::before {
  content: ""; position: absolute; left: -1.5rem; top: 2px;
  width: 12px; height: 12px; border-radius: 50%; border: 2px solid var(--ia-cyan);
  background: var(--ia-navy-900);
}
.timeline-item--complete::before { border-color: var(--ia-green); background: var(--ia-green); }
.timeline-item--scheduled::before { border-color: var(--ia-turquoise); background: var(--ia-navy-900); }
.timeline-date { font-family: var(--font-mono); font-size: 0.6875rem; font-weight: 700; text-transform: uppercase; color: var(--ia-on-surface-variant); }
.timeline-title { font-family: var(--font-display); font-size: 0.9375rem; font-weight: 600; color: var(--ia-on-surface); margin-top: 0.125rem; }
.timeline-desc { font-size: 0.78125rem; color: var(--ia-on-surface-variant); margin-top: 0.25rem; line-height: 1.5; }

/* ---- Tabs ---- */
.tab {
  padding: 0.625rem 1rem; font-family: var(--font-body); font-size: 0.8125rem;
  font-weight: 500; color: var(--ia-on-surface-variant); border: 1px solid transparent;
  border-bottom: 0; border-radius: 0.375rem 0.375rem 0 0; cursor: pointer;
  transition: all 0.2s var(--ia-ease);
}
.tab--active { background: var(--color-surface); border-color: var(--ia-line); border-bottom: 1px solid var(--ia-line); color: var(--ia-cyan); font-weight: 600; }
.tab:not(.tab--active):hover { background: var(--color-surface-high); color: var(--ia-on-surface); }
.tab-panel { display: none; }
.tab-panel--active { display: block; }

/* ---- Step / progress indicator (shared) ---- */
.progress-steps { display: flex; align-items: flex-start; gap: 0.5rem; margin-bottom: var(--space-xl); }
.progress-step { flex: 1; display: flex; flex-direction: column; align-items: center; text-align: center; }
.progress-number {
  width: 28px; height: 28px; border-radius: 9999px; display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: 0.6875rem; font-weight: 700; letter-spacing: 0.04em;
  border: 2px solid var(--ia-line); color: var(--ia-on-surface-variant); background: var(--color-surface); z-index: 1;
}
.progress-step--active .progress-number { border-color: var(--ia-cyan); color: var(--ia-navy-900); background: var(--ia-gradient-primary); }
.progress-step--complete .progress-number { border-color: var(--ia-cyan); color: var(--ia-navy-900); background: var(--ia-cyan); }
.progress-step .progress-line { flex: 1; height: 2px; margin-top: 14px; background: var(--ia-line); }
.progress-step--complete .progress-line, .progress-step--active .progress-line { background: var(--ia-cyan); }
.progress-label { font-family: var(--font-body); font-size: 0.6875rem; font-weight: 500; color: var(--ia-on-surface-variant); letter-spacing: 0.04em; text-transform: uppercase; }
.progress-step--active .progress-label { color: var(--ia-on-surface); font-weight: 600; }

/* ---- Step cards ---- */
.step-card { display: none; }
.step-card--active { display: block; }

/* ---- Radio pills ---- */
.radio-pill {
  display: flex; align-items: center; gap: 0.5rem; padding: 0.75rem 1rem;
  border: 1px solid var(--ia-line-dark); border-radius: 0.5rem; cursor: pointer;
  transition: all 0.2s var(--ia-ease);
}
.radio-pill input { display: none; }
.radio-pill:hover { border-color: var(--ia-cyan); background: rgba(0,210,255,0.03); }
.radio-pill input:checked + .radio-label { color: var(--ia-cyan); font-weight: 600; }
.radio-check { opacity: 0; transition: opacity 0.2s var(--ia-ease); }
.radio-pill input:checked ~ .radio-check { opacity: 1; color: var(--ia-cyan); }

/* ---- File preview ---- */
.file-preview { margin-top: var(--space-sm); display: flex; gap: 0.5rem; flex-wrap: wrap; }
.preview-thumb { width: 56px; height: 56px; border-radius: 0.375rem; border: 1px solid var(--ia-line-dark); display: flex; align-items: center; justify-content: center; overflow: hidden; }
.preview-thumb img { max-width: 100%; max-height: 100%; object-fit: contain; }

/* ---- Demo badge ---- */
.badge--demo { background: rgba(255,193,7,0.12); border: 1px solid rgba(255,193,7,0.3); color: #ffc107; }

/* ---- Equip card ---- */
.eq-card { background: var(--color-surface); border: 1px solid var(--ia-line-dark); border-radius: 0.75rem; padding: var(--space-lg); display: flex; flex-direction: column; gap: var(--space-sm); backdrop-filter: blur(16px); }
.eq-card:hover { border-color: var(--ia-cyan); }
.eq-header { display: flex; flex-direction: column sm:flex-row; align-items: flex-start; justify-content: space-between; gap: 0.5rem; }
.eq-title { font-family: var(--font-display); font-size: 1.125rem; font-weight: 600; color: var(--ia-on-surface); }
.eq-meta { font-size: 0.78125rem; color: var(--ia-on-surface-variant); }

/* ---- Shop ---- */
.shop-hero {
  background: linear-gradient(160deg, rgba(0,210,255,0.06), rgba(255,255,255,0) 55%),
              radial-gradient(circle at 50% 40%, rgba(0,229,190,0.12), transparent 48%);
  border: 1px solid var(--ia-line-dark);
}
.shop-card {
  background: var(--color-surface); border: 1px solid var(--ia-line-dark); border-radius: 0.75rem;
  padding: var(--space-lg); text-align: center; backdrop-filter: blur(16px);
  display: flex; flex-direction: column; gap: var(--space-sm);
  transition: border-color 0.3s var(--ia-ease), transform 0.3s var(--ia-ease);
}
.shop-card:hover { border-color: var(--ia-cyan); transform: translateY(-2px); }
.shop-card .card-icon { width: 56px; height: 56px; margin: 0 auto; display: flex; align-items: center; justify-content: center; border-radius: 0.5rem; background: var(--color-surface-high); border: 1px solid var(--ia-line-dark); }
.shop-card .card-icon svg { width: 28px; height: 28px; }

/* ---- Reduced motion ---- */
@media (prefers-reduced-motion: reduce) {
  .shop-card, .eq-card, .radio-pill, .progress-number { transition: none !important; }
}