/* ── Vecho Design System ── */
:root {
  --void: #0a0a0c;
  --charcoal: #141418;
  --charcoal-light: #1c1c22;
  --ivory: #f2ece4;
  --ivory-muted: #b8b0a6;
  --eggplant: #3d1f4e;
  --purple: #8b5cf6;
  --purple-glow: rgba(139, 92, 246, 0.35);
  --purple-soft: rgba(139, 92, 246, 0.12);
  --fit-yes: #2d6a4f;
  --fit-yes-bg: rgba(45, 106, 79, 0.12);
  --fit-no: #9b2335;
  --fit-no-bg: rgba(155, 35, 53, 0.12);
  --border: rgba(242, 236, 228, 0.1);
  --focus-ring: #c4b5fd;
  --radius: 12px;
  --radius-lg: 20px;
  --nav-height: 72px;
  --transition: 0.25s ease;
  --font-serif: Georgia, "Times New Roman", serif;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ivory);
  background-color: var(--void);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--purple);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--ivory);
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 200;
  padding: 0.75rem 1.25rem;
  background: var(--purple);
  color: var(--void);
  font-weight: 600;
  border-radius: var(--radius);
}

.skip-link:focus {
  top: 1rem;
}

/* Focus */
:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 3px;
}

/* Container */
.container {
  width: 100%;
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

/* Typography */
.eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--purple);
  margin: 0 0 1rem;
}

h1,
h2,
h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.15;
  margin: 0;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  max-width: 18ch;
}

h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  max-width: 22ch;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

p {
  margin: 0;
}

.section {
  padding-block: clamp(4rem, 8vw, 7rem);
}

.section__lead {
  color: var(--ivory-muted);
  font-size: 1.125rem;
  max-width: 52ch;
  margin-bottom: 2.5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition), transform var(--transition), color var(--transition);
  text-align: center;
  white-space: nowrap;
}

.btn--primary {
  background: var(--purple);
  color: var(--void);
  border-color: var(--purple);
}

.btn--primary:hover {
  background: #a78bfa;
  border-color: #a78bfa;
  color: var(--void);
}

.btn--secondary {
  background: transparent;
  color: var(--ivory);
  border-color: var(--border);
}

.btn--secondary:hover {
  border-color: var(--ivory-muted);
  color: var(--ivory);
  background: rgba(242, 236, 228, 0.05);
}

.btn:active {
  transform: scale(0.98);
}

/* Header / Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background: rgba(10, 10, 12, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
  gap: 1rem;
}

.nav__brand {
  font-family: var(--font-serif);
  font-size: 1.375rem;
  color: var(--ivory);
  flex-shrink: 0;
}

.nav__brand:hover {
  color: var(--purple);
}

.nav__links {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 1.5rem;
}

.nav__links a {
  font-size: 0.875rem;
  color: var(--ivory-muted);
}

.nav__links a:hover {
  color: var(--ivory);
}

.nav__cta {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.625rem 1rem;
  background: var(--purple-soft);
  color: var(--purple);
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: var(--radius);
  white-space: nowrap;
}

.nav__cta:hover {
  background: rgba(139, 92, 246, 0.2);
  color: var(--ivory);
}

@media (min-width: 900px) {
  .nav__links {
    display: flex;
  }

  .nav__cta {
    font-size: 0.8125rem;
    padding: 0.75rem 1.25rem;
  }
}

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  padding-top: clamp(3rem, 6vw, 5rem);
}

.hero__mesh {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 70% 20%, var(--purple-glow), transparent 70%),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(61, 31, 78, 0.5), transparent 60%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
}

.hero__support {
  color: var(--ivory-muted);
  font-size: 1.125rem;
  max-width: 58ch;
  margin-top: 1.5rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.5rem;
}

/* Reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Bento grid */
.bento {
  display: grid;
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.bento__card {
  background: var(--charcoal);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: border-color var(--transition), transform var(--transition);
}

.bento__card:hover {
  border-color: rgba(139, 92, 246, 0.35);
  transform: translateY(-2px);
}

.bento__card--wide {
  grid-column: 1 / -1;
}

.bento__icon {
  width: 40px;
  height: 40px;
  color: var(--purple);
  margin-bottom: 1.25rem;
}

.bento__card p {
  color: var(--ivory-muted);
  margin-top: 0.5rem;
}

@media (min-width: 768px) {
  .bento {
    grid-template-columns: 1fr 1fr;
  }

  .bento__card--wide {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0 2rem;
    align-items: start;
  }

  .bento__card--wide .bento__icon {
    margin-bottom: 0;
  }
}

/* Diagnosis */
.diagnosis {
  background: var(--charcoal);
}

.diagnosis__rows {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 2.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.diagnosis__row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5rem;
  padding: 2rem;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

.diagnosis__row:last-child {
  border-bottom: none;
}

.diagnosis__row:hover {
  background: rgba(139, 92, 246, 0.04);
}

.diagnosis__index {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  color: var(--purple);
  opacity: 0.6;
  line-height: 1;
  padding-top: 0.15rem;
}

.diagnosis__row p {
  color: var(--ivory-muted);
  margin-top: 0.375rem;
}

/* Calculator */
.calculator {
  background: var(--charcoal);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 4vw, 2.5rem);
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.calculator__intro {
  color: var(--ivory-muted);
  margin-top: 0.75rem;
  max-width: 52ch;
}

.calculator__inputs {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.calculator__field label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.calculator__field input[type="number"] {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1.125rem;
  font-family: inherit;
  color: var(--ivory);
  background: var(--charcoal-light);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}

.calculator__field input[type="number"]:focus {
  border-color: var(--purple);
  outline: none;
  box-shadow: 0 0 0 2px var(--purple-soft);
}

.calculator__currency {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.calculator__currency-symbol {
  font-size: 1.125rem;
  color: var(--ivory-muted);
}

.calculator__rate-row {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.calculator__rate-row input[type="range"] {
  flex: 1;
  height: 6px;
  appearance: none;
  -webkit-appearance: none;
  background: var(--charcoal-light);
  border-radius: 3px;
  cursor: pointer;
}

.calculator__rate-row input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  background: var(--purple);
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid var(--ivory);
}

.calculator__rate-row input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: var(--purple);
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid var(--ivory);
}

.calculator__rate-row output {
  font-size: 1.125rem;
  font-weight: 600;
  min-width: 3.5rem;
  text-align: right;
  color: var(--purple);
}

.calculator__hint {
  display: block;
  font-size: 0.75rem;
  color: var(--ivory-muted);
  margin-top: 0.375rem;
  opacity: 0.7;
}

.calculator__result {
  text-align: center;
  padding: 2rem 1.5rem;
  background: var(--charcoal-light);
  border: 1px solid rgba(139, 92, 246, 0.25);
  border-radius: var(--radius);
}

.calculator__result-label {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ivory-muted);
  margin-bottom: 0.5rem;
}

.calculator__result-value {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  color: var(--ivory);
  line-height: 1.1;
}

.calculator__formula {
  text-align: center;
  font-size: 0.9375rem;
  color: var(--ivory-muted);
  padding: 0 0.5rem;
  line-height: 1.5;
}

.calculator__disclosure {
  text-align: center;
  font-size: 0.8125rem;
  font-style: italic;
  color: var(--ivory-muted);
  opacity: 0.8;
}

@media (min-width: 768px) {
  .calculator__inputs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}

/* Process */
.process__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.process__step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5rem;
  align-items: start;
}

.process__number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: var(--purple);
  background: var(--purple-soft);
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: 50%;
  flex-shrink: 0;
}

.process__step p {
  color: var(--ivory-muted);
  margin-top: 0.375rem;
}

@media (min-width: 768px) {
  .process__steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }

  .process__step {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

/* Demo flow */
.demo-flow {
  background: var(--charcoal);
}

.demo-flow__grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.demo-flow__card {
  background: var(--charcoal-light);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: border-color var(--transition);
}

.demo-flow__card:hover {
  border-color: rgba(139, 92, 246, 0.3);
}

.demo-flow__step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--purple);
  background: var(--purple-soft);
  border-radius: 50%;
  margin-bottom: 1rem;
}

.demo-flow__card p {
  color: var(--ivory-muted);
  margin-top: 0.375rem;
}

@media (min-width: 768px) {
  .demo-flow__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Fit */
.fit__grid {
  display: grid;
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.fit__card {
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--border);
}

.fit__card--yes {
  background: var(--fit-yes-bg);
  border-color: rgba(45, 106, 79, 0.35);
}

.fit__card--yes h3 {
  color: #52b788;
}

.fit__card--no {
  background: var(--fit-no-bg);
  border-color: rgba(155, 35, 53, 0.35);
}

.fit__card--no h3 {
  color: #e07a8a;
}

.fit__card ul {
  margin: 1rem 0 0;
  padding-left: 1.25rem;
  color: var(--ivory-muted);
}

.fit__card li {
  margin-bottom: 0.5rem;
}

.fit__card li:last-child {
  margin-bottom: 0;
}

@media (min-width: 768px) {
  .fit__grid {
    grid-template-columns: 1fr 1fr;
  }
}

/* Offer */
.offer__card {
  background: var(--charcoal);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 4vw, 3rem);
  margin-top: 2rem;
  max-width: 560px;
}

.offer__price {
  margin-bottom: 1.5rem;
}

.offer__amount {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  color: var(--ivory);
}

.offer__period {
  font-size: 1.25rem;
  color: var(--ivory-muted);
}

.offer__details {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
}

.offer__details li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--ivory-muted);
}

.offer__details li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--purple);
}

.offer__note {
  font-size: 0.875rem;
  color: var(--ivory-muted);
  opacity: 0.8;
  border-top: 1px solid var(--border);
  padding-top: 1.25rem;
}

/* FAQ */
.faq__list {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq__item {
  background: var(--charcoal);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}

.faq__item[open] {
  border-color: rgba(139, 92, 246, 0.3);
}

.faq__item summary {
  padding: 1.25rem 1.5rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

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

.faq__item summary::after {
  content: "+";
  font-size: 1.25rem;
  color: var(--purple);
  flex-shrink: 0;
  transition: transform var(--transition);
}

.faq__item[open] summary::after {
  transform: rotate(45deg);
}

.faq__item p {
  padding: 0 1.5rem 1.25rem;
  color: var(--ivory-muted);
}

/* Final CTA */
.final-cta {
  background:
    radial-gradient(ellipse 50% 60% at 50% 100%, var(--purple-glow), transparent 70%),
    var(--charcoal);
}

.final-cta__inner {
  text-align: center;
}

.final-cta__inner h2 {
  max-width: none;
  margin-inline: auto;
}

.final-cta__inner > p {
  color: var(--ivory-muted);
  max-width: 48ch;
  margin: 1rem auto 0;
}

.final-cta__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding-block: 2.5rem;
}

.site-footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.5rem;
}

.site-footer__brand {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  margin: 0;
}

.site-footer__tagline {
  font-size: 0.875rem;
  color: var(--ivory-muted);
  margin: 0;
}

.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem;
  margin-top: 1rem;
}

.site-footer__nav a {
  font-size: 0.875rem;
  color: var(--ivory-muted);
}

.site-footer__copyright {
  color: var(--ivory-muted);
  font-size: 0.75rem;
  margin: 0.75rem 0 0;
}

/* Mobile-specific: calculator order enforced via flex column (natural DOM order) */
@media (max-width: 389px) {
  .hero__actions,
  .final-cta__actions {
    flex-direction: column;
    width: 100%;
  }

  .hero__actions .btn,
  .final-cta__actions .btn {
    width: 100%;
  }

  .nav__cta {
    font-size: 0.6875rem;
    padding: 0.5rem 0.75rem;
  }
}