/* PlatePrep Interactive Workflow — Brand-matched to plateprep.com */

:root {
  /* PlatePrep.com palette */
  --navy: #012241;
  --navy-dark: #012241;
  --navy-mid: #01375F;
  --sky: #04AEEF;
  --sky-soft: #87CEEBCC;
  --bg-light: #F8F9FA;
  --bg-light-2: #E8EEF3;
  --tag-bg: #F0F4F8;
  --pale-panel: #F8FAFF;
  --cream: #FFFFFF;
  --cream-deep: #F8F9FA;
  --offwhite: #FFFFFF;
  --charcoal: #012241;
  --text-dim: #666666;
  --text-faint: #888888;
  --text-muted: #999999;
  --border: #E8E8E8;
  --border-soft: rgba(1, 34, 65, 0.05);
  --white: #FFFFFF;

  /* Legacy aliases — kept so we don't have to rename every selector */
  --gold: #04AEEF;
  --gold-deep: #01375F;
  --gold-light: #87CEEBCC;

  --serif: 'Outfit', 'Poppins', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --sans: 'Poppins', 'Outfit', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --shadow-soft: 0 4px 24px rgba(1, 34, 65, 0.08);
  --shadow-deep: 0 20px 60px rgba(1, 34, 65, 0.18);
  --shadow-glow: 0 0 0 4px rgba(4, 174, 239, 0.18);
}

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

html, body {
  font-family: var(--sans);
  color: var(--charcoal);
  background: linear-gradient(180deg, var(--bg-light) 0%, var(--bg-light-2) 100%);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.6;
  font-weight: 400;
}

button {
  font-family: inherit;
  border: none;
  background: none;
  cursor: pointer;
  color: inherit;
}

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

/* ─────────────────────────────────────────────────────
   HEADER — white bg, navy text, navy CTA (matches plateprep.com)
   ───────────────────────────────────────────────────── */

.site-header {
  background: var(--white);
  color: var(--navy);
  padding: 18px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 3px rgba(1, 34, 65, 0.06);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 44px;
  height: 44px;
  background: var(--navy);
  color: var(--white);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-weight: 800;
  font-size: 24px;
  letter-spacing: -0.02em;
}

.brand-name {
  font-family: var(--serif);
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--navy);
  font-size: 16px;
}

.brand-tag {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 2px;
  font-style: normal;
}

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

.phone-link {
  color: var(--navy);
  font-weight: 700;
  letter-spacing: 0.02em;
  font-size: 14px;
  transition: color 0.2s;
}

.phone-link:hover {
  color: var(--sky);
}

.cta-btn {
  background: var(--navy);
  color: var(--white);
  padding: 10px 22px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: all 0.2s;
  box-shadow: 0 2px 8px rgba(1, 34, 65, 0.15);
}

.cta-btn:hover {
  background: var(--navy-mid);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(1, 34, 65, 0.25);
}

/* ─────────────────────────────────────────────────────
   HERO
   ───────────────────────────────────────────────────── */

.hero {
  padding: 80px 48px 40px;
  background: transparent;
}

.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

.eyebrow {
  font-family: var(--serif);
  font-size: 12px;
  font-weight: 700;
  color: var(--sky);
  letter-spacing: 0.4em;
  margin-bottom: 24px;
  position: relative;
  display: inline-block;
  text-transform: uppercase;
}

.eyebrow::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 3px;
  background: var(--sky);
}

h1 {
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(48px, 7vw, 88px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin-top: 24px;
  margin-bottom: 24px;
}

.line-navy {
  display: block;
  color: var(--navy);
}

.line-gold {
  display: block;
  color: var(--navy-mid);
}

.sub {
  font-family: var(--sans);
  font-size: clamp(18px, 2vw, 22px);
  color: var(--text-dim);
  font-style: normal;
  max-width: 760px;
  margin: 0 auto;
  line-height: 1.55;
}

.hint {
  display: block;
  font-family: var(--sans);
  font-style: normal;
  font-size: 14px;
  color: var(--sky);
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-top: 12px;
}

/* ─────────────────────────────────────────────────────
   WORKFLOW DIAGRAM
   ───────────────────────────────────────────────────── */

.workflow {
  padding: 40px 48px 100px;
  background: transparent;
}

.workflow-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Step: Upload */
.step-upload {
  background: var(--navy);
  color: var(--white);
  border-radius: 12px;
  padding: 24px 48px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  min-width: 280px;
  box-shadow: var(--shadow-soft);
}

.step-upload:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-deep);
}

.upload-accent {
  width: 32px;
  height: 3px;
  background: var(--sky);
  margin: 0 auto 12px;
}

.upload-eyebrow {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--sky);
  margin-bottom: 8px;
  text-transform: uppercase;
}

.upload-title {
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.upload-formats {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 6px;
  letter-spacing: 0.08em;
}

/* Arrows */
.arrow-down {
  width: 2px;
  background: var(--sky);
  position: relative;
}

.arrow-down::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 7px solid transparent;
  border-right: 7px solid transparent;
  border-top: 10px solid var(--sky);
}

.arrow-1, .arrow-2 {
  height: 36px;
  margin: 0;
}

/* Step: Engine (Menu Analyzer) */
.step-engine {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
  color: var(--white);
  border-radius: 12px;
  padding: 22px 56px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  min-width: 320px;
  box-shadow: var(--shadow-soft);
  position: relative;
  border: 1px solid var(--sky);
}

.step-engine:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 60px rgba(4, 174, 239, 0.25);
}

.engine-title {
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--white);
}

.engine-sub {
  font-size: 13px;
  margin-top: 4px;
  color: var(--sky);
  opacity: 0.95;
}

/* Outputs label */
.outputs-label {
  margin-top: 32px;
  margin-bottom: 24px;
  font-family: var(--sans);
  font-style: normal;
  color: var(--text-dim);
  font-size: 16px;
  font-weight: 500;
}

/* Outputs grid */
.outputs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  width: 100%;
  max-width: 1000px;
}

.outputs-grid .output-box:nth-child(5) {
  grid-column: 1 / 2;
  grid-row: 2;
  margin-left: 12.5%;
}
.outputs-grid .output-box:nth-child(6) {
  grid-column: 2 / 3;
  grid-row: 2;
  margin-left: 12.5%;
}
.outputs-grid .output-box:nth-child(7) {
  grid-column: 3 / 4;
  grid-row: 2;
  margin-left: 12.5%;
}

.output-box {
  background: var(--white);
  color: var(--navy);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 16px 18px;
  text-align: left;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 110px;
  box-shadow: var(--shadow-soft);
}

.output-box:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-deep);
  border-color: var(--sky);
  background: var(--pale-panel);
}

.output-box:focus-visible {
  outline: none;
  box-shadow: var(--shadow-deep), 0 0 0 3px var(--sky);
}

.output-box.is-active {
  background: var(--pale-panel);
  border-color: var(--sky);
  box-shadow: var(--shadow-deep);
}

.output-accent {
  width: 24px;
  height: 3px;
  background: var(--sky);
  margin-bottom: 12px;
}

.output-label {
  font-family: var(--serif);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--navy);
  font-size: 14px;
  margin-bottom: 8px;
  line-height: 1.2;
  text-transform: uppercase;
}

.output-hint {
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.02em;
}

/* Punchline */
.punchline {
  margin-top: 64px;
  text-align: center;
}

.punchline-1, .punchline-2 {
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.1;
  letter-spacing: -0.015em;
}

.punchline-1 {
  color: var(--navy);
}

.punchline-2 {
  color: var(--navy-mid);
  margin-top: 8px;
}

.punchline-3 {
  font-family: var(--sans);
  font-style: normal;
  font-size: 18px;
  color: var(--text-dim);
  margin-top: 24px;
}

/* ─────────────────────────────────────────────────────
   FOUNDER'S 50 CTA — navy gradient like plateprep.com footer
   ───────────────────────────────────────────────────── */

.founders {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
  color: var(--white);
  padding: 80px 48px;
  position: relative;
  overflow: hidden;
}

.founders::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(4, 174, 239, 0.10) 0%, transparent 70%);
  pointer-events: none;
}

.founders-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  position: relative;
}

.founders-eyebrow {
  font-family: var(--serif);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.4em;
  color: var(--sky);
  margin-bottom: 24px;
  text-transform: uppercase;
}

.founders h2 {
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1.1;
  margin-bottom: 40px;
  letter-spacing: -0.02em;
}

.founders-price {
  display: inline-flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 12px;
}

.price-num {
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(64px, 10vw, 96px);
  color: var(--sky);
  letter-spacing: -0.03em;
}

.price-mo {
  font-size: 20px;
  color: rgba(255, 255, 255, 0.7);
  font-style: normal;
}

.founders-sub {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 40px;
}

.founders-cta-row {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.cta-primary {
  background: var(--white);
  color: var(--navy);
  padding: 18px 36px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.04em;
  transition: all 0.2s;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.cta-primary:hover {
  background: var(--sky);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(4, 174, 239, 0.5);
}

.cta-secondary {
  border: 2px solid var(--sky);
  color: var(--sky);
  padding: 16px 32px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.2s;
}

.cta-secondary:hover {
  background: var(--sky);
  color: var(--white);
}

.founders-trust {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  font-style: normal;
  line-height: 1.6;
  max-width: 700px;
  margin: 0 auto;
}

/* ─────────────────────────────────────────────────────
   FOOTER
   ───────────────────────────────────────────────────── */

.site-footer {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.6);
  font-size: 12px;
  padding: 20px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* ─────────────────────────────────────────────────────
   PREVIEW PANEL (slides in from right)
   ───────────────────────────────────────────────────── */

.preview-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(720px, 60vw);
  background: var(--white);
  box-shadow: -20px 0 60px rgba(1, 34, 65, 0.25);
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.32, 0.72, 0, 1);
  z-index: 200;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.preview-panel.is-open {
  transform: translateX(0);
}

.preview-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--white);
  font-size: 24px;
  font-weight: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: all 0.2s;
  line-height: 1;
}

.preview-close:hover {
  background: var(--sky);
  color: var(--white);
  transform: rotate(90deg);
}

.preview-meta {
  padding: 32px 32px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-light);
}

.preview-eyebrow {
  font-family: var(--serif);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--sky);
  margin-bottom: 8px;
  text-transform: uppercase;
}

.preview-title {
  font-family: var(--serif);
  font-weight: 800;
  font-size: 28px;
  color: var(--navy);
  margin-bottom: 6px;
  letter-spacing: -0.015em;
}

.preview-desc {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.5;
}

.preview-image-wrap {
  flex: 1;
  padding: 24px;
  background: var(--bg-light);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.preview-image {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(1, 34, 65, 0.18);
  border: 1px solid var(--border);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.preview-image.is-loaded {
  opacity: 1;
}

.preview-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(1, 34, 65, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
  z-index: 150;
}

.preview-backdrop.is-visible {
  opacity: 1;
  visibility: visible;
}

/* ─────────────────────────────────────────────────────
   MOBILE
   ───────────────────────────────────────────────────── */

@media (max-width: 900px) {
  .site-header {
    padding: 14px 20px;
    flex-wrap: wrap;
    gap: 12px;
  }
  .brand-tag { display: none; }
  .header-cta { gap: 10px; }
  .hero { padding: 48px 20px 32px; }
  .workflow { padding: 32px 20px 64px; }
  .outputs-grid { grid-template-columns: repeat(2, 1fr); }
  .outputs-grid .output-box:nth-child(5),
  .outputs-grid .output-box:nth-child(6),
  .outputs-grid .output-box:nth-child(7) {
    grid-column: auto;
    grid-row: auto;
    margin-left: 0;
  }
  .preview-panel { width: 100%; transform: translateY(100%); }
  .preview-panel.is-open { transform: translateY(0); }
  .founders { padding: 56px 20px; }
  .founders-cta-row { flex-direction: column; align-items: stretch; }
  .site-footer {
    flex-direction: column;
    gap: 8px;
    text-align: center;
    padding: 16px 20px;
  }
}

@media (max-width: 600px) {
  .hero h1 { font-size: 48px; }
  .step-upload, .step-engine {
    min-width: auto;
    width: 100%;
    padding: 20px 24px;
  }
  .upload-title, .engine-title { font-size: 22px; }
  .punchline-1, .punchline-2 { font-size: 28px; }
}

/* ─────────────────────────────────────────────────────
   HEADER NAV
   ───────────────────────────────────────────────────── */

.header-nav {
  display: flex;
  gap: 32px;
  align-items: center;
}

.header-nav a {
  font-size: 13px;
  font-weight: 600;
  color: var(--navy);
  letter-spacing: 0.02em;
  transition: color 0.2s;
  position: relative;
}

.header-nav a:hover {
  color: var(--sky);
}

@media (max-width: 1100px) {
  .header-nav { display: none; }
}

/* ─────────────────────────────────────────────────────
   SECTION TITLE
   ───────────────────────────────────────────────────── */

.section-title {
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(38px, 5.5vw, 64px);
  line-height: 1.08;
  letter-spacing: -0.025em;
  margin: 24px 0 16px;
}

.section-sub {
  font-family: var(--sans);
  font-size: clamp(16px, 1.5vw, 18px);
  color: var(--text-dim);
  font-style: normal;
  margin-bottom: 48px;
  line-height: 1.6;
}

.gold-dark {
  color: var(--sky);
}

/* ─────────────────────────────────────────────────────
   DEMOS SECTION
   ───────────────────────────────────────────────────── */

.demos {
  background: var(--white);
  padding: 100px 48px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.demos-inner {
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.demos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 16px;
  text-align: left;
}

.demo-box {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  gap: 18px;
  align-items: flex-start;
  text-align: left;
  position: relative;
  overflow: hidden;
}

.demo-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--sky);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s ease;
}

.demo-box:hover::before,
.demo-box.is-active::before {
  transform: scaleX(1);
}

.demo-box:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-deep);
  border-color: var(--sky);
}

.demo-box.is-active {
  border-color: var(--sky);
  box-shadow: var(--shadow-deep);
}

.demo-num {
  background: var(--navy);
  color: var(--white);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-weight: 800;
  font-size: 16px;
  flex-shrink: 0;
}

.demo-content {
  flex: 1;
  min-width: 0;
}

.demo-label {
  font-family: var(--serif);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--navy);
  font-size: 14px;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.demo-hint {
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.5;
  margin-bottom: 10px;
}

.demo-url {
  display: inline-block;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 11px;
  color: var(--sky);
  letter-spacing: 0.02em;
  word-break: break-all;
  transition: color 0.2s;
  cursor: pointer;
  text-decoration: none;
}

.demo-url:hover {
  color: var(--navy-mid);
  text-decoration: underline;
}

.demos-cta {
  margin-top: 48px;
}

.cta-secondary-light {
  display: inline-block;
  color: var(--sky);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.04em;
  padding: 12px 24px;
  border: 2px solid var(--sky);
  border-radius: 8px;
  transition: all 0.2s;
}

.cta-secondary-light:hover {
  background: var(--sky);
  color: var(--white);
}

/* ─────────────────────────────────────────────────────
   WORKFLOW HEADER
   ───────────────────────────────────────────────────── */

.workflow-header {
  text-align: center;
  margin-bottom: 48px;
}

/* ─────────────────────────────────────────────────────
   ROI SECTION
   ───────────────────────────────────────────────────── */

.roi {
  background: var(--bg-light);
  padding: 100px 48px;
  text-align: center;
  border-top: 1px solid var(--border);
}

.roi-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.big-number {
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(96px, 16vw, 220px);
  line-height: 0.95;
  color: var(--navy);
  letter-spacing: -0.04em;
  margin: 32px 0 16px;
}

.big-sub {
  font-family: var(--serif);
  font-size: clamp(20px, 2.5vw, 32px);
  color: var(--navy);
  font-weight: 700;
}

.big-sub-italic {
  font-family: var(--sans);
  font-style: normal;
  font-size: clamp(16px, 1.5vw, 18px);
  color: var(--text-dim);
  margin-top: 4px;
  margin-bottom: 56px;
}

.roi-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  max-width: 980px;
  margin: 0 auto 48px;
}

.roi-card {
  background: var(--white);
  color: var(--navy);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 20px 24px;
  text-align: left;
  position: relative;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: var(--shadow-soft);
}

.roi-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-deep);
  border-color: var(--sky);
}

.roi-card-accent {
  width: 32px;
  height: 4px;
  background: var(--sky);
  margin-bottom: 16px;
}

.roi-card-num {
  font-family: var(--serif);
  font-weight: 800;
  font-size: 48px;
  color: var(--navy);
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 12px;
}

.roi-card-label {
  font-weight: 700;
  font-size: 14px;
  color: var(--navy);
  letter-spacing: 0.02em;
  margin-bottom: 6px;
}

.roi-card-sub {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.4;
}

.math-strip {
  background: var(--navy);
  color: var(--white);
  padding: 22px 32px;
  border-radius: 12px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(16px, 2vw, 22px);
  max-width: 980px;
  margin: 0 auto 48px;
  letter-spacing: -0.01em;
}

.roi-close {
  margin-top: 16px;
}

.roi-close-1 {
  font-family: var(--serif);
  font-weight: 800;
  font-size: clamp(28px, 4vw, 44px);
  color: var(--navy);
  letter-spacing: -0.015em;
}

.roi-close-2 {
  font-family: var(--sans);
  font-style: normal;
  font-size: clamp(16px, 2vw, 20px);
  color: var(--text-dim);
  margin-top: 8px;
}

/* ─────────────────────────────────────────────────────
   RESPONSIVE — new sections
   ───────────────────────────────────────────────────── */

@media (max-width: 900px) {
  .demos { padding: 64px 20px; }
  .demos-grid { grid-template-columns: 1fr; }
  .roi { padding: 64px 20px; }
  .roi-cards { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .math-strip { padding: 18px 20px; font-size: 14px; }
}

@media (max-width: 600px) {
  .roi-cards { grid-template-columns: 1fr; }
}

/* Demo box with multiple URLs */
.demo-box--multi .demo-url {
  display: block;
  margin-top: 6px;
  padding: 4px 0;
  border-bottom: 1px dashed transparent;
}

.demo-box--multi .demo-url:hover {
  border-bottom-color: var(--sky);
}