/* =====================================================
   CréditoAuto Chile — Retro-Modern Stylesheet
   Aesthetic: 70s Financial Magazine × Digital Clean
   ===================================================== */

@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=IBM+Plex+Mono:wght@400;500;700&family=Lora:ital,wght@0,400;0,600;1,400&display=swap');

/* =====================================================
   1. Design Tokens
   ===================================================== */
:root {
  --color-bg:        #F5F0E8;
  --color-primary:   #1A1A2E;
  --color-accent:    #E8572A;
  --color-secondary: #4A7C59;
  --color-highlight: #F2C94C;
  --color-surface:   #EDE8DC;
  --color-white:     #FFFFFF;
  --color-text:      #1A1A2E;
  --color-text-light:#5A4E3C;
  --color-text-muted:#8A7E6E;
  --color-border:    #1A1A2E;

  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body:    'Lora', Georgia, serif;
  --font-mono:    'IBM Plex Mono', 'Courier New', monospace;

  --text-xs:   0.72rem;
  --text-sm:   0.875rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.25rem;
  --text-2xl:  1.5rem;
  --text-3xl:  1.875rem;
  --text-4xl:  2.5rem;
  --text-5xl:  3.5rem;

  --fw-regular:  400;
  --fw-semibold: 600;
  --fw-bold:     700;

  --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;

  --border:        2px solid var(--color-primary);
  --border-accent: 2px solid var(--color-accent);
  --border-thin:   1px solid rgba(26,26,46,0.18);

  --shadow-offset:    4px 4px 0 var(--color-primary);
  --shadow-offset-sm: 2px 2px 0 var(--color-primary);
  --shadow-offset-lg: 6px 6px 0 var(--color-primary);
  --shadow-offset-accent: 4px 4px 0 var(--color-accent);

  --container-max:  1200px;
  --header-height:  70px;
  --transition:     0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* =====================================================
   2. Reset & Base
   ===================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.72;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

/* Grain texture overlay */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='0.4'/%3E%3C/svg%3E");
  opacity: 0.028;
  pointer-events: none;
  z-index: 9998;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
table { border-collapse: collapse; width: 100%; }

/* =====================================================
   3. Typography
   ===================================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--color-text);
  line-height: 1.2;
  font-weight: var(--fw-regular);
}
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.75rem); }
h4 { font-size: clamp(1.05rem, 2vw, 1.25rem); }

p  { margin-bottom: var(--space-4); line-height: 1.78; }
p:last-child { margin-bottom: 0; }
strong { font-weight: var(--fw-semibold); }

.mono   { font-family: var(--font-mono); }
.lead   { font-size: var(--text-lg); color: var(--color-text-light); line-height: 1.8; font-style: italic; }
.label  { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.12em; text-transform: uppercase; }

/* =====================================================
   4. Layout
   ===================================================== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* Section counter */
body { counter-reset: section-seq 0; }
.section { counter-increment: section-seq; }

.section         { padding: var(--space-20) 0; position: relative; }
.section--alt    { background: var(--color-surface); }
.section--dark   { background: var(--color-primary); color: var(--color-bg); }
.section--accent { background: var(--color-accent); color: var(--color-white); }

/* Dot separator between sections */
.section + .section::before {
  content: '';
  position: absolute;
  top: 0; left: 5%; right: 5%;
  height: 1px;
  background-image: radial-gradient(circle, var(--color-primary) 1px, transparent 1px);
  background-size: 8px 1px;
  opacity: 0.15;
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-12);
  position: relative;
  overflow: hidden;
  padding-bottom: var(--space-2);
}
.section__header::after {
  content: '0' counter(section-seq);
  font-family: var(--font-mono);
  font-size: clamp(4.5rem, 12vw, 8rem);
  font-weight: 700;
  color: var(--color-primary);
  opacity: 0.042;
  position: absolute;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  line-height: 1;
  pointer-events: none;
  letter-spacing: -0.05em;
  z-index: 0;
}
.section__header h2 {
  margin-bottom: var(--space-4);
  position: relative;
  z-index: 1;
}
.section__header p {
  max-width: 620px;
  margin: 0 auto;
  color: var(--color-text-light);
  font-size: var(--text-lg);
  font-style: italic;
  position: relative;
  z-index: 1;
}
.section--dark .section__header p,
.section--accent .section__header p { color: rgba(245,240,232,0.78); }
.section--dark .section__header::after { color: var(--color-bg); }

.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: var(--space-6); }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--space-6); }
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: var(--space-5); }

/* =====================================================
   5. Info Banner
   ===================================================== */
.info-banner {
  background: var(--color-accent);
  color: var(--color-white);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 500;
  text-align: center;
  padding: 7px var(--space-4);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-bottom: 1px solid rgba(0,0,0,0.15);
}
.info-banner a {
  color: var(--color-highlight);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.info-banner strong { color: var(--color-highlight); }

/* =====================================================
   6. Header & Navigation
   ===================================================== */
.header {
  background: var(--color-primary);
  position: sticky;
  top: 0;
  z-index: 999;
  border-bottom: 3px solid var(--color-accent);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  flex-shrink: 0;
}
.logo__icon {
  width: 40px; height: 40px;
  background: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}
.logo:hover .logo__icon { background: var(--color-highlight); outline-color: var(--color-highlight); }
.logo__text  { display: flex; flex-direction: column; line-height: 1.1; }
.logo__name  {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: var(--fw-regular);
  color: var(--color-bg);
  letter-spacing: -0.01em;
}
.logo__sub   {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--color-accent);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 0;
}
.nav__link {
  color: rgba(245,240,232,0.78);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: var(--space-2) var(--space-4);
  transition: color var(--transition);
  position: relative;
  white-space: nowrap;
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0; left: var(--space-4); right: var(--space-4);
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}
.nav__link:hover { color: var(--color-bg); }
.nav__link:hover::after { transform: scaleX(1); }
.nav__link.active { color: var(--color-highlight); }
.nav__link.active::after { transform: scaleX(1); background: var(--color-highlight); }

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  padding: var(--space-2);
  transition: var(--transition);
}
.nav__toggle:hover { background: rgba(245,240,232,.06); }
.nav__toggle span {
  display: block;
  width: 22px; height: 2px;
  background: var(--color-bg);
  transition: var(--transition);
  transform-origin: center;
}
.nav__toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav__toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =====================================================
   7. Hero Section (index)
   ===================================================== */
.hero {
  background: var(--color-bg);
  padding: var(--space-24) 0 var(--space-20);
  position: relative;
  overflow: hidden;
  border-bottom: var(--border);
}

/* Large geometric circle — right side */
.hero::after {
  content: '';
  position: absolute;
  right: -6%;
  top: 50%;
  transform: translateY(-50%);
  width: clamp(300px, 45vw, 580px);
  height: clamp(300px, 45vw, 580px);
  border-radius: 50%;
  border: clamp(30px, 5vw, 60px) solid var(--color-accent);
  opacity: 0.1;
  pointer-events: none;
}
/* Inner smaller concentric circle */
.hero::before {
  content: '';
  position: absolute;
  right: calc(-6% + clamp(50px, 8vw, 100px));
  top: 50%;
  transform: translateY(-50%);
  width: clamp(180px, 28vw, 360px);
  height: clamp(180px, 28vw, 360px);
  border-radius: 50%;
  border: 2px solid var(--color-accent);
  opacity: 0.12;
  pointer-events: none;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 60%;
}

/* Stamp badge */
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  border: 2px solid var(--color-accent);
  outline: 1px solid var(--color-accent);
  outline-offset: 3px;
  color: var(--color-accent);
  background: transparent;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 6px 14px;
  margin-bottom: var(--space-8);
  transform: rotate(-3deg);
  transform-origin: left center;
  display: inline-block;
}
.hero__badge svg { display: none; } /* hide old svg, badge is pure text */

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5.5vw, 3.8rem);
  line-height: 1.12;
  color: var(--color-primary);
  margin-bottom: var(--space-6);
  font-weight: var(--fw-regular);
}
.hero__title span {
  color: var(--color-accent);
  position: relative;
  display: inline;
}
/* Decorative yellow underline */
.hero__title span::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0; right: 0;
  height: 8px;
  background: var(--color-highlight);
  z-index: -1;
  transform: skewX(-2deg);
  opacity: 0.65;
}

.hero__subtitle {
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  color: var(--color-text-light);
  line-height: 1.8;
  margin-bottom: var(--space-10);
  max-width: 540px;
  font-style: italic;
}

.hero__actions {
  display: flex; flex-wrap: wrap;
  gap: var(--space-4); align-items: center;
}

.hero__stats {
  display: flex; gap: var(--space-8); flex-wrap: wrap;
  margin-top: var(--space-12);
  padding-top: var(--space-10);
  border-top: var(--border-thin);
}
.hero__stat-num {
  font-family: var(--font-mono);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  display: block;
}
.hero__stat-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  line-height: 1.4;
  display: block;
  margin-top: 4px;
}

/* =====================================================
   8. Page Hero (inner pages)
   ===================================================== */
.page-hero {
  background: var(--color-primary);
  color: var(--color-bg);
  padding: var(--space-16) 0 var(--space-12);
  position: relative;
  overflow: hidden;
  border-bottom: 4px solid var(--color-accent);
}
/* Diagonal stripe texture */
.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    -45deg,
    rgba(245,240,232,0.02) 0,
    rgba(245,240,232,0.02) 1px,
    transparent 1px,
    transparent 12px
  );
  pointer-events: none;
}
.page-hero__content { position: relative; z-index: 1; }

.breadcrumb {
  display: flex; align-items: center; flex-wrap: wrap;
  gap: var(--space-2);
  font-family: var(--font-mono); font-size: 0.68rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: rgba(245,240,232,0.45);
  margin-bottom: var(--space-4);
}
.breadcrumb a { color: rgba(245,240,232,0.65); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--color-highlight); }
.breadcrumb__sep { color: rgba(245,240,232,0.3); }

.page-hero__title { color: var(--color-bg); margin-bottom: var(--space-4); }
.page-hero__lead  {
  color: rgba(245,240,232,0.75);
  font-size: var(--text-lg); font-style: italic;
  max-width: 640px; line-height: 1.78; margin: 0;
}

/* =====================================================
   9. Buttons (retro — square, offset shadow)
   ===================================================== */
.btn {
  display: inline-flex;
  align-items: center; justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  line-height: 1;
  padding: 14px var(--space-8);
  border-radius: 0;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
  cursor: pointer;
  white-space: nowrap;
  border: 2px solid transparent;
  position: relative;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-offset);
}
.btn--primary:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--color-accent);
}

.btn--outline {
  background: transparent;
  color: var(--color-bg);
  border-color: rgba(245,240,232,0.55);
  box-shadow: 4px 4px 0 rgba(245,240,232,0.2);
}
.btn--outline:hover {
  background: var(--color-bg);
  color: var(--color-primary);
  border-color: var(--color-bg);
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 rgba(245,240,232,0.3);
}

.btn--ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-offset-sm);
}
.btn--ghost:hover {
  background: var(--color-primary);
  color: var(--color-bg);
  transform: translate(-2px, -2px);
  box-shadow: 4px 4px 0 var(--color-accent);
}

.btn--sm { font-size: 0.68rem; padding: 10px var(--space-5); }

/* =====================================================
   10. Cards (thick border + corner marks)
   ===================================================== */
.card {
  background: var(--color-surface);
  border: 2px solid var(--color-primary);
  border-radius: 0;
  padding: var(--space-8);
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}

/* Corner marks — top-left and bottom-right */
.card::before {
  content: '';
  position: absolute;
  top: -4px; left: -4px;
  width: 16px; height: 16px;
  border-top: 3px solid var(--color-accent);
  border-left: 3px solid var(--color-accent);
}
.card::after {
  content: '';
  position: absolute;
  bottom: -4px; right: -4px;
  width: 16px; height: 16px;
  border-bottom: 3px solid var(--color-accent);
  border-right: 3px solid var(--color-accent);
}

.card--hover:hover {
  transform: translate(-3px, -3px);
  box-shadow: var(--shadow-offset-lg);
}

.card__icon {
  width: 52px; height: 52px;
  background: var(--color-bg);
  border: 2px solid var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-5);
  color: var(--color-accent);
  transition: var(--transition);
}
.card--hover:hover .card__icon {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}
.card__icon svg { width: 26px; height: 26px; }

.card__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--fw-regular);
  color: var(--color-text);
  margin-bottom: var(--space-3);
}
.card__text { color: var(--color-text-light); font-size: var(--text-sm); line-height: 1.72; margin: 0; }

/* Dark card variant */
.card--dark {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-bg);
}
.card--dark::before { border-color: var(--color-highlight); }
.card--dark::after  { border-color: var(--color-highlight); }
.card--dark .card__icon { background: rgba(245,240,232,.08); color: var(--color-highlight); border-color: var(--color-highlight); }
.card--dark .card__title { color: var(--color-bg); }
.card--dark .card__text  { color: rgba(245,240,232,.72); }

/* Accent-top variant */
.card--accent-top  { border-top: 4px solid var(--color-accent); }
.card--primary-top { border-top: 4px solid var(--color-primary); }

/* =====================================================
   11. Info Boxes
   ===================================================== */
.info-box {
  padding: var(--space-5) var(--space-6);
  border-radius: 0;
  border-left: 4px solid;
  border: 2px solid;
  margin: var(--space-6) 0;
  position: relative;
}
.info-box--note    { background: #EEF3F8; border-color: #2563EB; }
.info-box--warning { background: #FDF6E3; border-color: var(--color-highlight); }
.info-box--success { background: #EEF6EE; border-color: var(--color-secondary); }
.info-box__title   {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}
.info-box p { font-size: var(--text-sm); line-height: 1.68; margin: 0; }

/* =====================================================
   12. Tables (vintage spreadsheet)
   ===================================================== */
.table-wrapper {
  overflow-x: auto;
  border: 2px solid var(--color-primary);
  box-shadow: var(--shadow-offset);
}
.table { font-size: var(--text-sm); border-radius: 0; }
.table thead { background: var(--color-primary); color: var(--color-bg); }
.table thead th {
  padding: var(--space-4) var(--space-5);
  font-family: var(--font-mono); font-weight: 700;
  text-align: left; white-space: nowrap;
  font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase;
  border-right: 1px solid rgba(245,240,232,.12);
}
.table thead th:last-child { border-right: none; }
.table tbody tr { border-bottom: 1px solid rgba(26,26,46,.12); }
.table tbody tr:last-child { border-bottom: none; }
.table tbody tr:nth-child(even) { background: var(--color-surface); }
.table tbody tr:nth-child(odd)  { background: var(--color-bg); }
.table tbody tr:hover { background: rgba(232,87,42,0.06); }
.table td {
  padding: var(--space-4) var(--space-5);
  color: var(--color-text-light);
  vertical-align: middle; line-height: 1.5;
  border-right: var(--border-thin);
}
.table td:last-child { border-right: none; }
.table td:first-child { font-family: var(--font-mono); font-weight: 700; color: var(--color-text); font-size: 0.82rem; }
.check   { color: var(--color-secondary); font-weight: 700; font-family: var(--font-mono); }
.cross   { color: var(--color-accent); font-weight: 700; font-family: var(--font-mono); }
.partial { color: #a06b00; font-weight: 700; font-family: var(--font-mono); }

/* =====================================================
   13. Steps / Process
   ===================================================== */
.steps {
  display: flex; flex-direction: column; gap: var(--space-6);
  position: relative;
}
.steps::before {
  content: ''; position: absolute;
  left: 27px; top: 56px; bottom: 56px;
  width: 2px;
  background: repeating-linear-gradient(
    to bottom,
    var(--color-primary) 0, var(--color-primary) 4px,
    transparent 4px, transparent 12px
  );
  opacity: 0.25;
}
.step { display: flex; gap: var(--space-6); align-items: flex-start; }
.step__num {
  flex-shrink: 0; width: 56px; height: 56px;
  background: var(--color-accent); color: var(--color-white);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: var(--text-xl); font-weight: 700;
  position: relative; z-index: 1;
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
}
.step__content   { padding-top: var(--space-3); flex: 1; }
.step__title     { font-family: var(--font-display); font-size: var(--text-xl); margin-bottom: var(--space-2); }
.step__text      { color: var(--color-text-light); line-height: 1.75; margin: 0; font-size: var(--text-sm); }

/* =====================================================
   14. Accordion / FAQ
   ===================================================== */
.accordion               { display: flex; flex-direction: column; gap: var(--space-3); }
.accordion__item         { border: 2px solid var(--color-primary); border-radius: 0; overflow: visible; position: relative; }
.accordion__item::before {
  content: '';
  position: absolute; top: 3px; left: 3px;
  right: -3px; bottom: -3px;
  background: var(--color-primary);
  z-index: -1;
  opacity: 0;
  transition: opacity var(--transition);
}
.accordion__item.open::before { opacity: 1; }
.accordion__trigger {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-4); padding: var(--space-5) var(--space-6);
  font-family: var(--font-display); font-size: var(--text-base);
  font-weight: var(--fw-regular); color: var(--color-text); text-align: left;
  background: var(--color-bg); cursor: pointer; transition: background var(--transition), color var(--transition);
}
.accordion__trigger:hover { background: var(--color-surface); }
.accordion__item.open .accordion__trigger { background: var(--color-primary); color: var(--color-bg); }
.accordion__icon {
  flex-shrink: 0; width: 26px; height: 26px;
  border: 2px solid currentColor;
  display: flex; align-items: center; justify-content: center;
  transition: transform var(--transition);
}
.accordion__icon svg { width: 12px; height: 12px; }
.accordion__item.open .accordion__icon { transform: rotate(180deg); }
.accordion__panel { max-height: 0; overflow: hidden; transition: max-height .4s cubic-bezier(0.4,0,0.2,1); }
.accordion__panel.open { max-height: 700px; }
.accordion__body {
  padding: var(--space-5) var(--space-6);
  color: var(--color-text-light); font-size: var(--text-sm); line-height: 1.8;
  border-top: 2px solid var(--color-primary);
  background: var(--color-bg);
}

/* =====================================================
   15. Formula Box
   ===================================================== */
.formula-box {
  background: var(--color-primary); color: var(--color-bg);
  padding: var(--space-10) var(--space-12);
  text-align: center; margin: var(--space-8) 0;
  border: 2px solid var(--color-primary);
  box-shadow: var(--shadow-offset-accent);
  position: relative;
}
.formula-box__label {
  font-family: var(--font-mono); font-size: var(--text-xs);
  font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--color-highlight); margin-bottom: var(--space-5);
}
.formula-box__formula {
  font-family: var(--font-mono);
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  line-height: 1.5; margin-bottom: var(--space-5);
  background: rgba(245,240,232,.06);
  border: 1px solid rgba(245,240,232,.15);
  padding: var(--space-5) var(--space-8);
  display: inline-block; min-width: 300px;
}
.formula-box__note { font-size: var(--text-xs); color: rgba(245,240,232,.55); margin: 0; font-style: italic; }

/* =====================================================
   16. Content + Sidebar Layout
   ===================================================== */
.content-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: var(--space-12);
  align-items: start;
}
.sidebar { position: sticky; top: calc(var(--header-height) + var(--space-6)); }
.sidebar__card {
  background: var(--color-surface);
  border: 2px solid var(--color-primary);
  padding: var(--space-6); margin-bottom: var(--space-5);
  position: relative;
}
.sidebar__card::before {
  content: '';
  position: absolute; top: -3px; left: -3px;
  width: 10px; height: 10px;
  border-top: 2px solid var(--color-accent);
  border-left: 2px solid var(--color-accent);
}
.sidebar__card-title {
  font-family: var(--font-mono); font-size: var(--text-xs);
  font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--color-accent); margin-bottom: var(--space-4);
  padding-bottom: var(--space-3); border-bottom: 1px solid rgba(26,26,46,.15);
}
.sidebar__nav { display: flex; flex-direction: column; gap: 0; }
.sidebar__nav a {
  font-size: var(--text-sm); color: var(--color-text-light);
  padding: var(--space-2) var(--space-3);
  transition: color var(--transition), background var(--transition);
  display: flex; align-items: center; gap: var(--space-2);
  border-left: 2px solid transparent;
}
.sidebar__nav a::before { content: '›'; font-family: var(--font-mono); font-size: .9rem; opacity: .45; }
.sidebar__nav a:hover   { color: var(--color-accent); border-left-color: var(--color-accent); background: rgba(232,87,42,.05); padding-left: var(--space-4); }

/* =====================================================
   17. Prose / Long-form Content
   ===================================================== */
.prose h2 {
  margin-top: var(--space-10); margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--color-primary);
}
.prose h3 { margin-top: var(--space-8); margin-bottom: var(--space-3); color: var(--color-accent); }
.prose h4 { margin-top: var(--space-6); margin-bottom: var(--space-2); font-family: var(--font-mono); font-size: var(--text-sm); letter-spacing: .05em; text-transform: uppercase; }
.prose p  { margin-bottom: var(--space-5); color: var(--color-text-light); line-height: 1.85; }
.prose ul, .prose ol { margin-bottom: var(--space-5); padding-left: var(--space-6); }
.prose ul   { list-style: disc; }
.prose ol   { list-style: decimal; }
.prose li   { margin-bottom: var(--space-2); line-height: 1.75; color: var(--color-text-light); }
.prose strong { color: var(--color-text); }
.prose a    { color: var(--color-accent); text-decoration: underline; text-underline-offset: 3px; }

/* =====================================================
   18. Check List
   ===================================================== */
.check-list              { display: flex; flex-direction: column; gap: var(--space-3); }
.check-list li           { display: flex; align-items: flex-start; gap: var(--space-3); font-size: var(--text-sm); color: var(--color-text-light); line-height: 1.65; }
.check-list li .chk-icon {
  flex-shrink: 0; width: 22px; height: 22px;
  background: var(--color-secondary); color: var(--color-white);
  display: flex; align-items: center; justify-content: center;
  margin-top: 1px;
}
.check-list li .chk-icon svg { width: 12px; height: 12px; }

/* =====================================================
   19. Feature Row (2-col visual sections)
   ===================================================== */
.feature-row {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: var(--space-12); align-items: center;
}
.feature-row--reverse { direction: rtl; }
.feature-row--reverse > * { direction: ltr; }
.feature-visual {
  background: var(--color-surface);
  border: 2px solid var(--color-primary);
  padding: var(--space-10);
  display: flex; align-items: center; justify-content: center;
  min-height: 280px;
  position: relative;
  box-shadow: var(--shadow-offset-sm);
}
.feature-visual::before {
  content: '';
  position: absolute; top: -3px; left: -3px;
  width: 10px; height: 10px;
  border-top: 2px solid var(--color-accent);
  border-left: 2px solid var(--color-accent);
}
.feature-visual::after {
  content: '';
  position: absolute; bottom: -3px; right: -3px;
  width: 10px; height: 10px;
  border-bottom: 2px solid var(--color-accent);
  border-right: 2px solid var(--color-accent);
}
.feature-visual__icon { color: var(--color-primary); opacity: 0.15; }
.feature-visual__icon svg { width: 110px; height: 110px; }

/* =====================================================
   20. Disclaimer Bar
   ===================================================== */
.disclaimer {
  background: var(--color-surface);
  border-top: 3px solid var(--color-highlight);
  border-bottom: var(--border-thin);
  padding: var(--space-6) 0;
}
.disclaimer__inner { display: flex; gap: var(--space-4); align-items: flex-start; }
.disclaimer__icon  { flex-shrink: 0; color: var(--color-accent); margin-top: 2px; }
.disclaimer__icon svg { width: 20px; height: 20px; }
.disclaimer__text  { font-size: var(--text-xs); color: var(--color-text-light); line-height: 1.68; margin: 0; font-family: var(--font-mono); }
.disclaimer__text strong {
  color: var(--color-text); display: block;
  margin-bottom: var(--space-1); font-size: var(--text-sm);
  font-family: var(--font-body);
}

/* =====================================================
   21. Footer
   ===================================================== */
.footer {
  background: var(--color-primary);
  color: rgba(245,240,232,.65);
  padding: var(--space-20) 0 0;
  border-top: 4px solid var(--color-accent);
}
.footer__grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 0;
  padding-bottom: var(--space-12);
  border-bottom: 1px solid rgba(245,240,232,.1);
}
/* Vertical dividers between columns */
.footer__grid > div {
  padding: 0 var(--space-8);
  border-right: 1px solid rgba(245,240,232,.1);
}
.footer__grid > div:first-child { padding-left: 0; }
.footer__grid > div:last-child  { padding-right: 0; border-right: none; }

.footer__brand p {
  font-size: var(--text-sm); line-height: 1.78; font-style: italic;
  margin: var(--space-4) 0 var(--space-5);
  max-width: 280px; color: rgba(245,240,232,.6);
}
.footer__info-note {
  font-family: var(--font-mono); font-size: 0.65rem; line-height: 1.65;
  background: rgba(232,87,42,.12); border: 1px solid rgba(232,87,42,.25);
  padding: var(--space-4); color: rgba(245,240,232,.55);
  letter-spacing: 0.04em;
}

.footer__col-title {
  font-family: var(--font-mono); font-size: var(--text-xs);
  font-weight: 700; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--color-highlight); margin-bottom: var(--space-5);
}
.footer__links     { display: flex; flex-direction: column; gap: var(--space-3); }
.footer__links a   {
  font-size: var(--text-sm); color: rgba(245,240,232,.55);
  transition: color var(--transition); display: flex; align-items: center; gap: var(--space-2);
  font-style: italic;
}
.footer__links a::before { content: '—'; font-family: var(--font-mono); font-size: .75rem; opacity: .35; font-style: normal; }
.footer__links a:hover   { color: var(--color-highlight); }

.footer__bottom {
  padding: var(--space-5) 0;
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: var(--space-4);
}
.footer__bottom-text  { font-family: var(--font-mono); font-size: 0.65rem; color: rgba(245,240,232,.38); letter-spacing: 0.06em; }
.footer__legal-links  { display: flex; gap: var(--space-6); }
.footer__legal-links a {
  font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: rgba(245,240,232,.45); transition: color var(--transition);
}
.footer__legal-links a:hover { color: var(--color-highlight); }

/* =====================================================
   22. Scroll Animations
   ===================================================== */
.will-animate {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.55s cubic-bezier(0.16,1,0.3,1),
              transform 0.55s cubic-bezier(0.16,1,0.3,1);
}
.will-animate.has-animated {
  opacity: 1;
  transform: translateY(0);
}

/* =====================================================
   23. Utility Classes
   ===================================================== */
.text-center   { text-align: center; }
.text-accent   { color: var(--color-accent); }
.text-primary  { color: var(--color-primary); }
.text-muted    { color: var(--color-text-muted); }
.text-white    { color: var(--color-white) !important; }
.text-highlight{ color: var(--color-highlight); }
.fw-bold       { font-weight: var(--fw-bold); }
.mono          { font-family: var(--font-mono); }
.mb-0  { margin-bottom: 0 !important; }
.mb-4  { margin-bottom: var(--space-4); }
.mb-6  { margin-bottom: var(--space-6); }
.mb-8  { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }
.mt-6  { margin-top: var(--space-6); }
.mt-8  { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0;
  margin: -1px; overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* =====================================================
   24. Responsive
   ===================================================== */
@media (max-width: 1024px) {
  .footer__grid        { grid-template-columns: 1fr 1fr; gap: var(--space-8); }
  .footer__grid > div  { border-right: none; padding: 0; }
  .content-layout      { grid-template-columns: 1fr; }
  .feature-row         { grid-template-columns: 1fr; }
  .feature-row--reverse { direction: ltr; }
  .feature-visual      { min-height: 180px; }
  .sidebar             { position: static; }
  .hero__content       { max-width: 75%; }
}

@media (max-width: 768px) {
  :root { --header-height: 62px; }

  .nav__list {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0; right: 0;
    background: var(--color-primary);
    flex-direction: column;
    padding: var(--space-4) var(--space-4) var(--space-6);
    gap: 0;
    z-index: 998;
    border-top: 2px solid var(--color-accent);
    border-bottom: 2px solid var(--color-accent);
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
  }
  .nav__list.open { display: flex; }
  .nav__link {
    width: 100%; padding: var(--space-4) var(--space-4);
    border-bottom: 1px solid rgba(245,240,232,.08);
  }
  .nav__link::after { bottom: -1px; left: 0; right: 0; }
  .nav__toggle { display: flex; }

  .hero          { padding: var(--space-16) 0 var(--space-12); }
  .hero__content { max-width: 100%; }
  .hero::after, .hero::before { display: none; }
  .hero__stats   { gap: var(--space-5); }
  .hero__actions { flex-direction: column; align-items: flex-start; }
  .hero__badge   { transform: rotate(-2deg); }

  .section       { padding: var(--space-16) 0; }
  .section__header { margin-bottom: var(--space-8); }

  .footer__grid  { grid-template-columns: 1fr; gap: var(--space-8); }
  .footer__bottom { flex-direction: column; text-align: center; }

  .steps::before { left: 20px; }
  .step__num     { width: 44px; height: 44px; font-size: var(--text-base); }
  .step          { gap: var(--space-4); }

  .formula-box   { padding: var(--space-6) var(--space-5); }
  .formula-box__formula { min-width: 0; width: 100%; }
}

@media (max-width: 480px) {
  .container     { padding: 0 var(--space-4); }
  .hero__stat-num { font-size: var(--text-2xl); }
  .card          { padding: var(--space-6); }
  .accordion__trigger { padding: var(--space-4) var(--space-5); font-size: var(--text-sm); }
  .accordion__body    { padding: var(--space-4) var(--space-5); }
  .disclaimer__inner  { flex-direction: column; gap: var(--space-2); }
  .btn           { width: 100%; justify-content: center; }
  .hero__actions .btn { width: auto; }
  .table thead th, .table td { padding: var(--space-3) var(--space-4); font-size: var(--text-xs); }
}