/* style.css — Kovela Studios: design tokens + components
   Concept: "Pricing Instrument" — engineering-precision graphite/paper neutrals
   with a single warm ember accent. Ledger-style mono numerals for data. */

:root {
  /* ---- Type scale ---- */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.375rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 4.5rem);
  --text-hero: clamp(2.75rem, 1rem + 5.5vw, 6.25rem);

  /* ---- Spacing (4px base) ---- */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* ---- Radius ---- */
  --radius-sm: 0.3rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.85rem;
  --radius-xl: 1.25rem;
  --radius-full: 9999px;

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  --content-narrow: 640px;
  --content-default: 1000px;
  --content-wide: 1240px;
  --content-full: 100%;

  /* ---- Fonts ---- */
  --font-display: 'General Sans', 'Segoe UI', sans-serif;
  --font-body: 'Switzer', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

/* ============== LIGHT (default) ============== */
:root,
[data-theme='light'] {
  /* Surfaces — warm paper / graphite ink */
  --color-bg: #f5f2ec;
  --color-surface: #faf8f3;
  --color-surface-2: #ffffff;
  --color-surface-offset: #ece7dc;
  --color-surface-offset-2: #e1dbcb;
  --color-surface-dynamic: #d5cdb8;
  --color-divider: #ddd6c5;
  --color-border: #cfc7b1;

  /* Text — ink */
  --color-text: #1c1a15;
  --color-text-muted: #6c6656;
  --color-text-faint: #a39c88;
  --color-text-inverse: #f7f4ec;

  /* Primary Accent — Ledger Ember */
  --color-primary: #b8531f;
  --color-primary-hover: #8f3f17;
  --color-primary-active: #6d2f11;
  --color-primary-highlight: #ecd7c4;

  /* Secondary contrast — Slate Blue (used only in comparison charts, as foil to ember) */
  --color-blue: #45607a;
  --color-blue-hover: #35495e;
  --color-blue-active: #263544;
  --color-blue-highlight: #d7dee4;

  --color-success: #4a7a3c;
  --color-success-highlight: #d9e4d2;
  --color-warning: #a3781f;
  --color-warning-highlight: #eadfc2;
  --color-error: #9c3a3a;
  --color-error-highlight: #e6d3d1;

  --shadow-sm: 0 1px 2px oklch(0.2 0.02 60 / 0.08);
  --shadow-md: 0 6px 16px oklch(0.2 0.02 60 / 0.1);
  --shadow-lg: 0 16px 40px oklch(0.2 0.02 60 / 0.14);
}

/* ============== DARK ============== */
[data-theme='dark'] {
  --color-bg: #15130f;
  --color-surface: #1b1815;
  --color-surface-2: #201d18;
  --color-surface-offset: #221f19;
  --color-surface-offset-2: #2a2620;
  --color-surface-dynamic: #342f26;
  --color-divider: #2b271f;
  --color-border: #3d372c;

  --color-text: #eae5da;
  --color-text-muted: #a49c89;
  --color-text-faint: #6f6858;
  --color-text-inverse: #201d18;

  --color-primary: #e08a4f;
  --color-primary-hover: #eea36c;
  --color-primary-active: #f4b988;
  --color-primary-highlight: #3f2c1c;

  --color-blue: #8fa6bc;
  --color-blue-hover: #a9bccd;
  --color-blue-active: #c2d0dc;
  --color-blue-highlight: #29333c;

  --color-success: #8fbb7c;
  --color-success-highlight: #2b3625;
  --color-warning: #d0ab5e;
  --color-warning-highlight: #3a3120;
  --color-error: #d08a8a;
  --color-error-highlight: #3a2827;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
  --shadow-md: 0 6px 16px oklch(0 0 0 / 0.36);
  --shadow-lg: 0 16px 40px oklch(0 0 0 / 0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #15130f;
    --color-surface: #1b1815;
    --color-surface-2: #201d18;
    --color-surface-offset: #221f19;
    --color-surface-offset-2: #2a2620;
    --color-surface-dynamic: #342f26;
    --color-divider: #2b271f;
    --color-border: #3d372c;
    --color-text: #eae5da;
    --color-text-muted: #a49c89;
    --color-text-faint: #6f6858;
    --color-text-inverse: #201d18;
    --color-primary: #e08a4f;
    --color-primary-hover: #eea36c;
    --color-primary-active: #f4b988;
    --color-primary-highlight: #3f2c1c;
    --color-blue: #8fa6bc;
    --color-blue-highlight: #29333c;
    --color-success: #8fbb7c;
    --color-warning: #d0ab5e;
    --color-error: #d08a8a;
    --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.3);
    --shadow-md: 0 6px 16px oklch(0 0 0 / 0.36);
    --shadow-lg: 0 16px 40px oklch(0 0 0 / 0.5);
  }
}

/* ============================================================
   LAYOUT PRIMITIVES
   ============================================================ */

.container {
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: var(--space-5);
}
.container--wide {
  max-width: var(--content-wide);
}
.container--narrow {
  max-width: var(--content-narrow);
}

section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-24));
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-primary);
  font-weight: 500;
}
.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  flex-shrink: 0;
}

h1,
.h1 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
}
h2,
.h2 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.015em;
  font-size: var(--text-xl);
}
h3,
.h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
}

p {
  color: var(--color-text-muted);
  max-width: 62ch;
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin-bottom: clamp(var(--space-10), 5vw, var(--space-16));
  max-width: 46rem;
}
.section-head p {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
}

.mono {
  font-family: var(--font-mono);
}

/* ============================================================
   BUTTONS
   ============================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-sm);
  min-height: 44px;
  white-space: nowrap;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}
[data-theme='dark'] .btn-primary {
  color: #17130d;
}
.btn-primary:hover {
  background: var(--color-primary-hover);
}
.btn-primary:active {
  background: var(--color-primary-active);
}
.btn-outline {
  background: transparent;
  color: var(--color-text);
  border-color: oklch(from var(--color-text) l c h / 0.22);
}
.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  padding-inline: var(--space-3);
}
.btn-ghost:hover {
  color: var(--color-text);
}
.btn-block {
  width: 100%;
}

/* ============================================================
   HEADER / NAV
   ============================================================ */

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: var(--space-2) var(--space-4);
  z-index: 200;
}
.skip-link:focus {
  left: var(--space-2);
  top: var(--space-2);
}

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: oklch(from var(--color-bg) l c h / 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid oklch(from var(--color-text) l c h / 0.08);
  transition:
    transform 0.35s cubic-bezier(0.16, 1, 0.3, 1),
    box-shadow 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
.header--hidden {
  transform: translateY(-100%);
}
.header--scrolled {
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-block: var(--space-3);
}
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-base);
  letter-spacing: -0.01em;
}
.brand svg {
  width: 30px;
  height: 30px;
  color: var(--color-primary);
}
.nav {
  display: none;
  align-items: center;
  gap: var(--space-6);
}
.nav a {
  white-space: nowrap;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 500;
}
.nav a:hover {
  color: var(--color-text);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
}
.theme-toggle:hover {
  background: var(--color-surface-offset);
  color: var(--color-text);
}
.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--color-text);
}
[data-nav-cta] {
  display: none;
}
.mobile-nav {
  display: none;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-4) var(--space-5) var(--space-6);
  border-top: 1px solid oklch(from var(--color-text) l c h / 0.08);
}
.mobile-nav.is-open {
  display: flex;
}
.mobile-nav a {
  padding: var(--space-3) var(--space-2);
  font-size: var(--text-base);
  color: var(--color-text);
  border-radius: var(--radius-sm);
}
.mobile-nav a:hover {
  background: var(--color-surface-offset);
}
.mobile-nav .btn {
  margin-top: var(--space-3);
}

@media (min-width: 900px) {
  .nav {
    display: flex;
  }
  .nav-toggle {
    display: none;
  }
  .mobile-nav {
    display: none !important;
  }
  [data-nav-cta] {
    display: inline-flex;
  }
}

/* ============================================================
   HERO
   ============================================================ */

.hero {
  position: relative;
  padding-block: clamp(var(--space-16), 12vw, var(--space-32)) clamp(var(--space-12), 8vw, var(--space-20));
  overflow: hidden;
}
.hero-grid-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(oklch(from var(--color-text) l c h / 0.05) 1px, transparent 1px),
    linear-gradient(90deg, oklch(from var(--color-text) l c h / 0.05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, black 0%, transparent 75%);
}
.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-10);
}
.hero-copy {
  max-width: 44rem;
}
.hero-copy .eyebrow {
  margin-bottom: var(--space-5);
}
.hero-copy h1 {
  font-size: var(--text-hero);
  color: var(--color-text);
  margin-bottom: var(--space-6);
}
.hero-copy h1 em {
  font-style: normal;
  color: var(--color-primary);
}
.hero-copy .lede {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 40ch;
  margin-bottom: var(--space-8);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}
.hero-actions .btn-primary {
  box-shadow: var(--shadow-md);
}
.hero-note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

.ledger {
  display: grid;
  grid-template-columns: 1fr;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
}
.ledger-item {
  padding: var(--space-6) var(--space-6);
  border-top: 1px solid var(--color-divider);
}
.ledger-item:first-child {
  border-top: none;
}
@media (min-width: 640px) {
  .ledger {
    grid-template-columns: repeat(3, 1fr);
  }
  .ledger-item {
    border-top: none;
    border-right: 1px solid var(--color-divider);
  }
  .ledger-item:last-child {
    border-right: none;
  }
}
.ledger-figure {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  color: var(--color-primary);
  font-weight: 500;
  display: block;
  margin-bottom: var(--space-1);
}
.ledger-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* ============================================================
   MARQUEE / SEGMENTS STRIP
   ============================================================ */

.segments-strip {
  padding-block: var(--space-8);
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
}
.segments-strip .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-6) var(--space-10);
}
.segments-strip .label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  flex-shrink: 0;
}
.segments-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-8);
}
.segments-list span {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ============================================================
   PROBLEM SECTION
   ============================================================ */

.problem {
  display: grid;
  gap: var(--space-12);
  align-items: start;
}
.problem-copy h2 {
  margin-bottom: var(--space-5);
}
.problem-copy p {
  font-size: var(--text-base);
  margin-bottom: var(--space-4);
}
.problem-copy p:last-of-type {
  margin-bottom: 0;
}
.problem-visual {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.timeline-chart {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.timeline-row {
  display: grid;
  grid-template-columns: 96px 1fr;
  align-items: center;
  gap: var(--space-4);
}
.timeline-row .row-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: 600;
}
.timeline-track {
  position: relative;
  height: 34px;
  background: var(--color-surface-offset);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.timeline-bar {
  height: 100%;
  display: flex;
  align-items: center;
  padding-inline: var(--space-3);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-inverse);
  white-space: nowrap;
}
.timeline-bar--legacy {
  width: 100%;
  background: var(--color-blue);
}
.timeline-bar--kovela {
  width: 24%;
  background: var(--color-primary);
}
[data-theme='dark'] .timeline-bar--kovela {
  color: #17130d;
}
.timeline-caption {
  padding-top: var(--space-2);
  border-top: 1px solid var(--color-divider);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

@media (min-width: 860px) {
  .problem {
    grid-template-columns: 1fr 1fr;
  }
}

/* ============================================================
   PROCESS / HOW IT WORKS
   ============================================================ */

.process-list {
  display: flex;
  flex-direction: column;
}
.process-step {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: var(--space-6);
  padding-block: var(--space-8);
  border-top: 1px solid var(--color-divider);
}
.process-step:first-child {
  border-top: none;
  padding-top: 0;
}
.process-num {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  color: var(--color-text-faint);
  font-weight: 500;
  line-height: 1;
}
.process-step.is-active .process-num {
  color: var(--color-primary);
}
.process-body h3 {
  margin-bottom: var(--space-3);
}
.process-body p {
  margin-bottom: 0;
}
.process-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-primary);
  background: var(--color-primary-highlight);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-3);
}

@media (min-width: 860px) {
  .process-step {
    grid-template-columns: 120px 1fr;
  }
}

/* ============================================================
   COMPARISON TABLE
   ============================================================ */

.compare-scroll-hint {
  display: none;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-3);
}
@media (max-width: 719px) {
  .compare-scroll-hint {
    display: block;
  }
}
.compare-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}
table.compare {
  width: 100%;
  min-width: 640px;
}
table.compare th,
table.compare td {
  text-align: left;
  padding: var(--space-4) var(--space-5);
  font-size: var(--text-sm);
  border-bottom: 1px solid var(--color-divider);
  vertical-align: top;
}
table.compare thead th {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}
table.compare tbody th {
  color: var(--color-text-muted);
  font-weight: 500;
  width: 30%;
}
table.compare td.col-legacy {
  color: var(--color-text-muted);
}
table.compare td.col-kovela {
  color: var(--color-text);
  font-weight: 500;
  background: var(--color-primary-highlight);
}
table.compare tr:last-child th,
table.compare tr:last-child td {
  border-bottom: none;
}
.compare-head-kovela {
  color: var(--color-primary) !important;
}

/* ============================================================
   SERVICES
   ============================================================ */

.services-list {
  display: flex;
  flex-direction: column;
}
.service-row {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: var(--space-5);
  padding-block: var(--space-6);
  border-top: 1px solid var(--color-divider);
}
.service-row:first-child {
  border-top: none;
  padding-top: 0;
}
.service-num {
  font-family: var(--font-mono);
  font-size: var(--text-base);
  color: var(--color-text-faint);
}
.service-row h3 {
  margin-bottom: var(--space-2);
}
.service-row p {
  margin-bottom: 0;
  font-size: var(--text-sm);
}
.service-featured {
  grid-column: 1 / -1;
  display: grid;
  gap: var(--space-6);
  padding: var(--space-8);
  margin-block: var(--space-8);
  background: var(--color-text);
  border-radius: var(--radius-lg);
  color: var(--color-text-inverse);
}
.service-featured h3,
.service-featured .eyebrow {
  color: var(--color-text-inverse);
}
.service-featured .eyebrow::before {
  background: var(--color-text-inverse);
}
.service-featured p {
  color: oklch(from var(--color-text-inverse) l c h / 0.72);
}
[data-theme='dark'] .service-featured {
  background: var(--color-primary);
  color: #17130d;
}
[data-theme='dark'] .service-featured h3,
[data-theme='dark'] .service-featured .eyebrow {
  color: #17130d;
}
[data-theme='dark'] .service-featured .eyebrow::before {
  background: #17130d;
}
[data-theme='dark'] .service-featured p {
  color: oklch(0.15 0.02 60 / 0.75);
}

@media (min-width: 860px) {
  .service-featured {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
  }
}

/* ============================================================
   USE CASES
   ============================================================ */

.usecase-tabs {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}
.usecase-tablist {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--color-divider);
}
.usecase-tab {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-1);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  cursor: pointer;
}
.usecase-tab-num {
  color: var(--color-text-faint);
  font-size: var(--text-xs);
}
.usecase-tab:hover {
  color: var(--color-text);
}
.usecase-tab.is-active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}
.usecase-tab.is-active .usecase-tab-num {
  color: var(--color-primary);
}
@media (min-width: 640px) {
  .usecase-tablist {
    gap: var(--space-2) var(--space-8);
  }
  .usecase-tab {
    padding-inline: var(--space-2);
  }
}

.usecase-panel {
  display: grid;
  gap: var(--space-8);
}
.usecase-panel[hidden] {
  display: none;
}
.usecase-panel-tag {
  display: inline-block;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: var(--text-xs);
  font-weight: 600;
  margin-bottom: var(--space-3);
}
.usecase-panel-copy h3 {
  margin-bottom: var(--space-4);
}
.usecase-panel-copy > p {
  font-size: var(--text-base);
  margin-bottom: var(--space-6);
}
.usecase-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.usecase-list li {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.usecase-list svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  color: var(--color-primary);
}
.usecase-panel-stat {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  align-self: start;
  height: fit-content;
}
.usecase-stat-tag {
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: var(--text-xs);
  font-weight: 600;
}
.usecase-stat-figure {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-lg);
  color: var(--color-primary);
  letter-spacing: -0.01em;
}
.usecase-stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.usecase-panel-stat--quadrant {
  gap: var(--space-4);
}
.menu-quadrant {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
}
.mq-cell {
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.mq-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}
.mq-desc {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.4;
}
.mq-cell--star {
  background: var(--color-success-highlight);
}
.mq-cell--star .mq-label {
  color: var(--color-success);
}
.mq-cell--puzzle {
  background: var(--color-blue-highlight);
}
.mq-cell--puzzle .mq-label {
  color: var(--color-blue);
}
.mq-cell--plowhorse {
  background: var(--color-warning-highlight);
}
.mq-cell--plowhorse .mq-label {
  color: var(--color-warning);
}
.mq-cell--dog {
  background: var(--color-error-highlight);
}
.mq-cell--dog .mq-label {
  color: var(--color-error);
}

.usecase-panel-stat--chart {
  gap: var(--space-4);
}
.elasticity-chart {
  width: 100%;
}
.elasticity-chart svg {
  width: 100%;
  height: auto;
  display: block;
}
.chart-callout {
  font-size: 8px;
  fill: var(--color-primary);
  font-weight: 600;
}
.chart-axis-label {
  font-size: 8px;
  fill: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.usecase-panel-stat--tiers {
  gap: var(--space-5);
}
.gbb-tiers {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-3);
  height: 120px;
}
.gbb-tier {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-2);
  height: 100%;
}
.gbb-features {
  font-size: 10px;
  color: var(--color-text-faint);
  white-space: nowrap;
}
.gbb-bar {
  width: 100%;
  max-width: 56px;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}
.gbb-bar--good {
  background: var(--color-border);
}
.gbb-bar--better {
  background: var(--color-blue);
}
.gbb-bar--best {
  background: var(--color-primary);
}
.gbb-name {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text);
}

@media (min-width: 860px) {
  .usecase-panel {
    grid-template-columns: 1.3fr 0.9fr;
    align-items: start;
  }
}

/* ============================================================
   PRICING
   ============================================================ */

.pricing-grid {
  display: grid;
  gap: var(--space-6);
}
.pricing-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  background: var(--color-surface);
  display: flex;
  flex-direction: column;
}
.pricing-card.is-featured {
  background: var(--color-text);
  border-color: var(--color-text);
  position: relative;
}
[data-theme='dark'] .pricing-card.is-featured {
  background: var(--color-surface-offset);
  border-color: var(--color-primary);
}
.pricing-card.is-featured * {
  color: var(--color-text-inverse);
}
[data-theme='dark'] .pricing-card.is-featured * {
  color: var(--color-text);
}
.pricing-card.is-featured .pricing-price,
.pricing-card.is-featured .pricing-name {
  color: var(--color-text-inverse);
}
[data-theme='dark'] .pricing-card.is-featured .pricing-price {
  color: var(--color-primary);
}
.pricing-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.pricing-badge {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-primary);
  background: var(--color-primary-highlight);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  white-space: nowrap;
  flex-shrink: 0;
}
[data-theme='dark'] .pricing-badge {
  color: #17130d;
  background: var(--color-primary);
}
.pricing-name {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}
.pricing-head .pricing-name {
  margin-bottom: 0;
}
.pricing-card.is-featured .pricing-name {
  color: oklch(from var(--color-text-inverse) l c h / 0.65);
}
[data-theme='dark'] .pricing-card.is-featured .pricing-name {
  color: oklch(from var(--color-text) l c h / 0.65);
}
.pricing-price {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 600;
  margin-bottom: var(--space-1);
  color: var(--color-text);
}
.pricing-unit {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}
.pricing-card.is-featured .pricing-unit {
  color: oklch(from var(--color-text-inverse) l c h / 0.65);
}
[data-theme='dark'] .pricing-card.is-featured .pricing-unit {
  color: oklch(from var(--color-text) l c h / 0.65);
}
.pricing-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
  flex-grow: 1;
}
.pricing-features li {
  display: flex;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.pricing-card.is-featured .pricing-features li {
  color: oklch(from var(--color-text-inverse) l c h / 0.82);
}
[data-theme='dark'] .pricing-card.is-featured .pricing-features li {
  color: oklch(from var(--color-text) l c h / 0.82);
}
.pricing-features svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--color-primary);
}
.pricing-card.is-featured .pricing-features svg {
  color: var(--color-primary);
}
.pricing-disclaimer {
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-10);
}

@media (min-width: 860px) {
  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================================
   FAQ
   ============================================================ */

.faq-list {
  border-top: 1px solid var(--color-divider);
}
.faq-item {
  border-bottom: 1px solid var(--color-divider);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-6);
  text-align: left;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--text-base);
  color: var(--color-text);
}
.faq-question .icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-text-muted);
  transition: transform var(--transition-interactive);
}
.faq-item.is-open .faq-question .icon {
  transform: rotate(45deg);
  color: var(--color-primary);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
.faq-answer p {
  padding-bottom: var(--space-6);
  font-size: var(--text-sm);
  max-width: 60ch;
}

/* ============================================================
   FINAL CTA / CONTACT
   ============================================================ */

.cta-section {
  background: var(--color-text);
  color: var(--color-text-inverse);
  border-radius: var(--radius-xl);
  margin-inline: var(--space-5);
  padding: clamp(var(--space-10), 6vw, var(--space-16));
}
[data-theme='dark'] .cta-section {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}
.cta-inner {
  max-width: var(--content-default);
  margin-inline: auto;
  display: grid;
  gap: var(--space-10);
}
.cta-copy h2 {
  color: var(--color-text-inverse);
  margin-bottom: var(--space-4);
}
[data-theme='dark'] .cta-copy h2 {
  color: var(--color-text);
}
.cta-copy p {
  color: oklch(from var(--color-text-inverse) l c h / 0.7);
  font-size: var(--text-base);
}
[data-theme='dark'] .cta-copy p {
  color: var(--color-text-muted);
}
.cta-copy .eyebrow {
  color: var(--color-primary-hover);
  margin-bottom: var(--space-5);
}
[data-theme='dark'] .cta-copy .eyebrow {
  color: var(--color-primary);
}
.cta-copy .eyebrow::before {
  background: var(--color-primary-hover);
}
[data-theme='dark'] .cta-copy .eyebrow::before {
  background: var(--color-primary);
}
.cta-form {
  background: oklch(from var(--color-text-inverse) l c h / 0.06);
  border: 1px solid oklch(from var(--color-text-inverse) l c h / 0.14);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
[data-theme='dark'] .cta-form {
  background: var(--color-surface-offset);
  border-color: var(--color-border);
}
.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.field label {
  font-size: var(--text-xs);
  color: oklch(from var(--color-text-inverse) l c h / 0.65);
  font-weight: 500;
}
[data-theme='dark'] .field label {
  color: var(--color-text-muted);
}
.field input,
.field select,
.field textarea {
  background: oklch(from var(--color-text-inverse) l c h / 0.08);
  border: 1px solid oklch(from var(--color-text-inverse) l c h / 0.16);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-inverse);
  font-size: var(--text-sm);
  min-height: 44px;
}
[data-theme='dark'] .field input,
[data-theme='dark'] .field select,
[data-theme='dark'] .field textarea {
  background: var(--color-surface-2);
  border-color: var(--color-border);
  color: var(--color-text);
}
.field textarea {
  min-height: 84px;
  resize: vertical;
}
.field input::placeholder,
.field textarea::placeholder {
  color: oklch(from var(--color-text-inverse) l c h / 0.4);
}
.field-row {
  display: grid;
  gap: var(--space-4);
}
.form-note {
  font-size: var(--text-xs);
  color: oklch(from var(--color-text-inverse) l c h / 0.55);
}
[data-theme='dark'] .form-note {
  color: var(--color-text-faint);
}
.form-success {
  display: none;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: oklch(from var(--color-primary) l c h / 0.16);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  color: var(--color-text-inverse);
}
[data-theme='dark'] .form-success {
  color: var(--color-text);
}
.form-success.is-visible {
  display: flex;
}
.form-success svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-primary);
}

.form-error {
  display: none;
  padding: var(--space-4);
  background: oklch(0.5 0.18 25 / 0.16);
  border: 1px solid oklch(0.5 0.18 25 / 0.35);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  color: var(--color-text);
}
.form-error.is-visible {
  display: block;
}
.form-error a {
  color: inherit;
  font-weight: 600;
  text-decoration: underline;
}

.botcheck-field {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  overflow: hidden;
  pointer-events: none;
}

@media (min-width: 860px) {
  .cta-inner {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
  .field-row {
    grid-template-columns: 1fr 1fr;
  }
}

/* ============================================================
   FOOTER
   ============================================================ */

.footer {
  padding-block: var(--space-16) var(--space-10);
  border-top: 1px solid var(--color-divider);
}
.footer-top {
  display: grid;
  gap: var(--space-10);
  padding-bottom: var(--space-10);
  border-bottom: 1px solid var(--color-divider);
  margin-bottom: var(--space-6);
}
.footer-brand .brand {
  margin-bottom: var(--space-3);
}
.footer-brand p {
  font-size: var(--text-sm);
  max-width: 32ch;
}
.footer-col h4 {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-3);
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.footer-col a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.footer-col a:hover {
  color: var(--color-primary);
}
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

@media (min-width: 700px) {
  .footer-top {
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
  }
}

/* ============================================================
   UTILITIES / REVEAL ANIMATION
   ============================================================ */

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition:
    opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}