/* Dataset Insights — soft neutral, large type, generous space */
:root {
  --bg: #f7f6f4;
  --bg-elevated: #ffffff;
  --ink: #1e211f;
  --ink-soft: #5a5f5b;
  --line: #ddd9d2;
  --accent: #6b7f6a;
  --accent-deep: #4f5f4e;
  --accent-soft: #e4ebe3;
  --warn: #8a4f3a;
  --radius: 2px;
  --max: 1120px;
  --font-display: "Fraunces", "Georgia", serif;
  --font-body: "Sora", "Helvetica Neue", sans-serif;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.75rem;
  --space-lg: 3rem;
  --space-xl: 5rem;
  --space-2xl: 7.5rem;
  --shadow-soft: 0 18px 40px rgba(30, 33, 31, 0.06);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 10% -10%, #ebe8e2 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 0%, #e8ede7 0%, transparent 50%),
    var(--bg);
  min-height: 100vh;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--accent-deep);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  transition: color 0.2s var(--ease);
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 0.6em;
}

h1 { font-size: clamp(2.4rem, 5.2vw, 4.2rem); }
h2 { font-size: clamp(1.8rem, 3.2vw, 2.6rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.55rem); }

p { margin: 0 0 1em; color: var(--ink-soft); }

.container {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(247, 246, 244, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease);
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 0;
}

.brand {
  font-family: var(--font-display);
  font-size: 1.35rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.03em;
}

.brand span {
  color: var(--accent);
}

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

.nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 400;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: var(--ink);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 0.55rem 1rem;
  background: var(--ink);
  color: #f7f6f4 !important;
  text-decoration: none;
  font-size: 0.88rem;
}

.nav-cta:hover {
  background: var(--accent-deep);
  color: #fff !important;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  padding: 0.45rem 0.7rem;
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--ink);
  cursor: pointer;
}

@media (max-width: 860px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    display: none;
    position: absolute;
    left: 1.25rem;
    right: 1.25rem;
    top: 100%;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.85rem;
    padding: 1.25rem;
    background: var(--bg-elevated);
    border: 1px solid var(--line);
    box-shadow: var(--shadow-soft);
  }
  .nav.is-open { display: flex; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.4rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease), color 0.25s var(--ease);
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--ink);
  color: #f7f6f4;
}

.btn-primary:hover {
  background: var(--accent-deep);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}

.btn-ghost:hover {
  border-color: var(--ink);
  color: var(--ink);
}

/* Hero — full bleed */
.hero {
  position: relative;
  min-height: min(92vh, 860px);
  display: grid;
  align-items: end;
  overflow: hidden;
  color: #f4f5f2;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.04);
  animation: heroDrift 18s var(--ease) infinite alternate;
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(20, 24, 21, 0.25) 0%, rgba(20, 24, 21, 0.72) 68%, rgba(20, 24, 21, 0.88) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: var(--space-2xl) 0 var(--space-xl);
  animation: riseIn 0.9s var(--ease) both;
}

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  letter-spacing: 0.02em;
  margin-bottom: 1.25rem;
  color: #e8ebe6;
}

.hero h1 {
  color: #f7f6f4;
  max-width: 14ch;
  margin-bottom: 0.75rem;
}

.hero .lede {
  max-width: 36ch;
  color: rgba(247, 246, 244, 0.82);
  font-size: 1.1rem;
  margin-bottom: 1.75rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero .btn-primary {
  background: #f7f6f4;
  color: var(--ink);
}

.hero .btn-primary:hover {
  background: var(--accent-soft);
}

.hero .btn-ghost {
  border-color: rgba(247, 246, 244, 0.45);
  color: #f7f6f4;
}

@keyframes heroDrift {
  from { transform: scale(1.04) translate3d(0, 0, 0); }
  to { transform: scale(1.1) translate3d(-1.5%, -1%, 0); }
}

@keyframes riseIn {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Sections */
.section {
  padding: var(--space-xl) 0;
}

.section-tight {
  padding: var(--space-lg) 0;
}

.section-head {
  max-width: 38rem;
  margin-bottom: var(--space-lg);
}

.section-head p {
  font-size: 1.05rem;
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
  font-weight: 500;
}

/* Benefit strip — not cards-in-hero */
.benefit-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: var(--space-lg) 0;
}

.benefit-row article h3 {
  margin-bottom: 0.4rem;
}

.benefit-row article p {
  margin: 0;
  font-size: 0.98rem;
}

@media (max-width: 760px) {
  .benefit-row { grid-template-columns: 1fr; gap: 1.5rem; }
}

/* Course / content grids */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.75rem;
}

@media (max-width: 860px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

.media-tile {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.media-tile:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-soft);
}

.media-tile .thumb {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--accent-soft);
}

.media-tile .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}

.media-tile:hover .thumb img {
  transform: scale(1.05);
}

.media-tile .body {
  padding: 1.25rem 1.35rem 1.5rem;
}

.media-tile h3 {
  font-size: 1.25rem;
  margin-bottom: 0.4rem;
}

.media-tile h3 a {
  color: var(--ink);
  text-decoration: none;
}

.media-tile .meta {
  font-size: 0.82rem;
  color: var(--ink-soft);
  margin-bottom: 0.5rem;
}

/* Quote / proof */
.proof-band {
  background: var(--ink);
  color: #e8ebe6;
  padding: var(--space-xl) 0;
}

.proof-band h2,
.proof-band p {
  color: #e8ebe6;
}

.proof-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: var(--space-md);
}

.proof-stats strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 500;
  color: #fff;
  letter-spacing: -0.03em;
}

.proof-stats span {
  color: rgba(232, 235, 230, 0.72);
  font-size: 0.95rem;
}

@media (max-width: 700px) {
  .proof-stats { grid-template-columns: 1fr; }
}

.testimonial {
  border-left: 2px solid var(--accent);
  padding-left: 1.25rem;
}

.testimonial p {
  font-size: 1.05rem;
  color: var(--ink);
  margin-bottom: 0.75rem;
}

.testimonial footer {
  font-size: 0.88rem;
  color: var(--ink-soft);
}

/* Pricing */
.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  align-items: stretch;
}

@media (max-width: 900px) {
  .price-grid { grid-template-columns: 1fr; }
}

.price-tier {
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  padding: 1.75rem 1.5rem 1.6rem;
  display: flex;
  flex-direction: column;
}

.price-tier.featured {
  border-color: var(--accent);
  background: linear-gradient(180deg, var(--accent-soft) 0%, var(--bg-elevated) 42%);
}

.price-tier h3 { margin-bottom: 0.25rem; }

.price-tier .amount {
  font-family: var(--font-display);
  font-size: 2.4rem;
  letter-spacing: -0.03em;
  margin: 0.75rem 0 0.35rem;
  color: var(--ink);
}

.price-tier .amount small {
  font-size: 1rem;
  color: var(--ink-soft);
  font-family: var(--font-body);
}

.price-tier ul {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0 1.5rem;
  flex: 1;
}

.price-tier li {
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.note {
  font-size: 0.88rem;
  color: var(--ink-soft);
  margin-top: 1rem;
}

/* Forms */
.form {
  display: grid;
  gap: 1rem;
  max-width: 36rem;
}

.form-row {
  display: grid;
  gap: 0.35rem;
}

.form label {
  font-size: 0.88rem;
  color: var(--ink);
}

.form input,
.form select,
.form textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--line);
  background: var(--bg-elevated);
  color: var(--ink);
  width: 100%;
}

.form textarea { min-height: 140px; resize: vertical; }

.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: 2px solid var(--accent-soft);
  border-color: var(--accent);
}

.field-error {
  color: var(--warn);
  font-size: 0.82rem;
  min-height: 1.1em;
}

.form-status {
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  font-size: 0.95rem;
  display: none;
}

.form-status.is-success {
  display: block;
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-deep);
}

.form-status.is-error {
  display: block;
  background: #f6ebe7;
  border-color: var(--warn);
  color: var(--warn);
}

.contact-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
}

@media (max-width: 800px) {
  .contact-layout { grid-template-columns: 1fr; }
}

.contact-aside {
  border-top: 1px solid var(--line);
  padding-top: 1.25rem;
}

.contact-aside dt {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 1rem;
}

.contact-aside dd {
  margin: 0.25rem 0 0;
  color: var(--ink);
}

/* Legal prose */
.prose {
  max-width: 42rem;
}

.prose h2 {
  margin-top: 2rem;
  font-size: 1.45rem;
}

.prose h3 {
  margin-top: 1.5rem;
  font-size: 1.15rem;
}

.prose ul, .prose ol {
  color: var(--ink-soft);
  padding-left: 1.25rem;
}

.prose li { margin-bottom: 0.4rem; }

.table-wrap {
  overflow-x: auto;
  margin: 1.5rem 0;
  border: 1px solid var(--line);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  background: var(--bg-elevated);
}

th, td {
  text-align: left;
  padding: 0.75rem 0.9rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

th {
  background: var(--accent-soft);
  color: var(--ink);
  font-weight: 500;
}

/* FAQ */
.faq details {
  border-bottom: 1px solid var(--line);
  padding: 1rem 0;
}

.faq summary {
  cursor: pointer;
  font-weight: 500;
  color: var(--ink);
  list-style: none;
}

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

.faq details[open] summary {
  color: var(--accent-deep);
}

.faq details p {
  margin-top: 0.75rem;
}

/* Page hero (inner) */
.page-hero {
  padding: var(--space-xl) 0 var(--space-md);
}

.page-hero .lede {
  max-width: 40rem;
  font-size: 1.15rem;
}

.page-hero-media {
  margin-top: var(--space-md);
  aspect-ratio: 21 / 8;
  overflow: hidden;
  background: var(--accent-soft);
}

.page-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@media (max-width: 700px) {
  .page-hero-media { aspect-ratio: 16 / 9; }
}

/* Modules list */
.module-list {
  counter-reset: mod;
  list-style: none;
  padding: 0;
  margin: 0;
}

.module-list li {
  counter-increment: mod;
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line);
}

.module-list li::before {
  content: counter(mod, decimal-leading-zero);
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--accent);
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: var(--space-lg) 0 var(--space-md);
  margin-top: var(--space-xl);
  background: linear-gradient(180deg, transparent, rgba(232, 235, 230, 0.45));
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: var(--space-md);
}

@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr; }
}

.site-footer h2 {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: var(--font-body);
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 0.85rem;
}

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-footer li { margin-bottom: 0.45rem; }

.site-footer a {
  color: var(--ink-soft);
  text-decoration: none;
}

.site-footer a:hover { color: var(--ink); }

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.35rem;
  color: var(--ink);
  margin-bottom: 0.5rem;
}

.footer-meta {
  font-size: 0.9rem;
  color: var(--ink-soft);
  line-height: 1.7;
}

.footer-bottom {
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--ink-soft);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 60;
  max-width: 420px;
  margin-left: auto;
  background: var(--bg-elevated);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-soft);
  padding: 1.25rem 1.35rem;
  animation: riseIn 0.45s var(--ease) both;
}

.cookie-banner[hidden] { display: none !important; }

.cookie-banner p {
  font-size: 0.92rem;
  margin-bottom: 1rem;
}

.cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.cookie-actions .btn {
  padding: 0.6rem 1rem;
  font-size: 0.88rem;
}

/* 404 */
.error-page {
  min-height: 70vh;
  display: grid;
  align-content: center;
  padding: var(--space-xl) 0;
}

.error-page .code {
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 8rem);
  letter-spacing: -0.04em;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

/* Inline script errors */
.runtime-error {
  margin: 0.75rem 0;
  padding: 0.75rem 1rem;
  background: #f6ebe7;
  border: 1px solid var(--warn);
  color: var(--warn);
  font-size: 0.9rem;
}

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Article */
.article-meta {
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin-bottom: 1.5rem;
}

.article-cover {
  margin: 0 0 var(--space-md);
  aspect-ratio: 16 / 7;
  overflow: hidden;
  background: var(--accent-soft);
}

.article-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.instructor {
  display: grid;
  grid-template-columns: 96px 1fr;
  gap: 1.25rem;
  align-items: center;
  padding: 1.25rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.instructor img {
  width: 96px;
  height: 96px;
  object-fit: cover;
  border-radius: 50%;
}

.split-feature {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (max-width: 800px) {
  .split-feature { grid-template-columns: 1fr; }
  .instructor { grid-template-columns: 72px 1fr; }
  .instructor img { width: 72px; height: 72px; }
}