:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --ink: #1c1f24;
  --ink-soft: #5a616c;
  --line: #e2e5ea;
  --accent: #2f5d50;
  --accent-hover: #244a40;
  --accent-soft: #e8f0ed;
  --highlight: #c4a35a;
  --error: #9b3b3b;
  --success: #2f5d50;
  --radius: 2px;
  --shadow: 0 12px 40px rgba(28, 31, 36, 0.06);
  --font-display: "Syne", sans-serif;
  --font-body: "Manrope", sans-serif;
  --max: 1120px;
  --header-h: 72px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 90% -10%, rgba(47, 93, 80, 0.07), transparent 60%),
    radial-gradient(900px 500px at -10% 20%, rgba(196, 163, 90, 0.08), transparent 55%),
    var(--bg);
  min-height: 100vh;
}

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

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
}

h1 { font-size: clamp(2.4rem, 5vw, 3.75rem); }
h2 { font-size: clamp(1.75rem, 3vw, 2.4rem); }
h3 { font-size: 1.35rem; }

p { margin: 0 0 1rem; }

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: 0.75rem 1rem;
  z-index: 1000;
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 248, 250, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 1rem;
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.03em;
}

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

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
}

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

.nav-cta {
  background: var(--accent);
  color: #fff !important;
  padding: 0.55rem 1rem;
  border-radius: var(--radius);
}

.nav-cta:hover {
  background: var(--accent-hover);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  padding: 0.5rem;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
}

@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.25rem 1.5rem;
    gap: 0.25rem;
  }
  .site-nav.is-open { display: flex; }
  .site-nav a { padding: 0.75rem 0.5rem; }
  .nav-cta { text-align: center; margin-top: 0.5rem; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.85rem 1.4rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

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

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

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

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

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

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

/* Hero variants */
.hero {
  padding: 4.5rem 0 3.5rem;
}

.hero-asymmetric {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3rem;
  align-items: end;
}

.hero-brand-mark {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.95;
  color: var(--ink);
  margin-bottom: 1.5rem;
  animation: rise 0.8s ease both;
}

.hero-lede {
  font-size: 1.2rem;
  color: var(--ink-soft);
  max-width: 34ch;
  animation: rise 0.8s ease 0.12s both;
}

.hero-visual {
  position: relative;
  min-height: 420px;
  overflow: hidden;
  animation: fade-in 1s ease 0.2s both;
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 420px;
  filter: grayscale(8%);
}

.hero-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 1.25rem;
  background: linear-gradient(transparent, rgba(28, 31, 36, 0.72));
  color: #fff;
  font-size: 0.9rem;
}

@media (max-width: 800px) {
  .hero-asymmetric {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .hero-visual { min-height: 280px; }
  .hero-visual img { min-height: 280px; }
}

/* Sections */
.section {
  padding: 4.5rem 0;
}

.section-alt {
  background: var(--surface);
  border-block: 1px solid var(--line);
}

.section-intro {
  max-width: 40rem;
  margin-bottom: 2.5rem;
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.muted { color: var(--ink-soft); }

/* Proof strip */
.proof-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding: 2rem 0;
  border-block: 1px solid var(--line);
}

.proof-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  letter-spacing: -0.03em;
}

.proof-item span {
  color: var(--ink-soft);
  font-size: 0.95rem;
}

@media (max-width: 700px) {
  .proof-strip { grid-template-columns: 1fr; gap: 1.25rem; }
}

/* Feature list (not cards unless interaction) */
.feature-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.feature-list article h3 {
  margin-top: 0.5rem;
}

.feature-list .num {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--highlight);
  font-weight: 700;
}

@media (max-width: 800px) {
  .feature-list { grid-template-columns: 1fr; gap: 2rem; }
}

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

.item-link {
  display: block;
  background: var(--surface);
  border: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  height: 100%;
}

.item-link:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
  color: inherit;
}

.item-link img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

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

.item-body h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.item-meta {
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-bottom: 0.5rem;
}

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

/* Testimonials */
.quote-stack {
  display: grid;
  gap: 2rem;
}

.quote {
  border-left: 3px solid var(--accent);
  padding: 0.25rem 0 0.25rem 1.5rem;
  max-width: 42rem;
}

.quote p {
  font-size: 1.15rem;
  font-style: italic;
  color: var(--ink);
}

.quote cite {
  display: block;
  font-style: normal;
  font-size: 0.9rem;
  color: var(--ink-soft);
  margin-top: 0.75rem;
}

.quote-wide {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

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

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

.price-tier {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
}

.price-tier.featured {
  border-color: var(--accent);
  box-shadow: var(--shadow);
}

.price-tier h3 { margin-bottom: 0.35rem; }

.price-amount {
  font-family: var(--font-display);
  font-size: 2.4rem;
  letter-spacing: -0.03em;
  margin: 1rem 0;
}

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

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

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

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

/* Forms */
.form {
  max-width: 36rem;
  display: grid;
  gap: 1.15rem;
}

.form-row {
  display: grid;
  gap: 0.4rem;
}

.form-row label {
  font-weight: 600;
  font-size: 0.9rem;
}

.form-row input,
.form-row select,
.form-row textarea {
  font: inherit;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  width: 100%;
}

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

.field-error {
  color: var(--error);
  font-size: 0.85rem;
  min-height: 1.2em;
}

.form-status {
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  display: none;
}

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

.form-status.is-error {
  display: block;
  background: #f8ecec;
  border-color: var(--error);
  color: var(--error);
}

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

.contact-aside {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 1.75rem;
}

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

/* Legal / prose */
.prose {
  max-width: 48rem;
}

.prose h2 {
  margin-top: 2.5rem;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 1.5rem 0;
}

.prose th,
.prose td {
  border: 1px solid var(--line);
  padding: 0.7rem 0.8rem;
  text-align: left;
  vertical-align: top;
}

.prose th {
  background: var(--surface);
  font-weight: 600;
}

.page-hero {
  padding: 3.5rem 0 2rem;
  border-bottom: 1px solid var(--line);
}

.page-hero p {
  max-width: 40rem;
  color: var(--ink-soft);
  font-size: 1.15rem;
}

/* Course detail */
.modules {
  display: grid;
  gap: 1rem;
}

.module {
  border-bottom: 1px solid var(--line);
  padding: 1.25rem 0;
}

.module h3 { margin-bottom: 0.35rem; }

.outcomes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem 2rem;
  list-style: none;
  padding: 0;
}

.outcomes li {
  padding-left: 1.25rem;
  position: relative;
}

.outcomes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65rem;
  width: 0.45rem;
  height: 0.45rem;
  background: var(--accent);
}

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

.instructor {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1.5rem;
  align-items: start;
  padding: 1.5rem 0;
}

.instructor img {
  width: 120px;
  height: 120px;
  object-fit: cover;
  border-radius: 50%;
}

@media (max-width: 500px) {
  .instructor { grid-template-columns: 1fr; }
}

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

.faq summary {
  cursor: pointer;
  font-weight: 600;
  font-family: var(--font-display);
}

.faq details p {
  margin-top: 0.75rem;
  color: var(--ink-soft);
}

/* Case study */
.case-study {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 2rem;
  margin: 2rem 0;
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--surface);
  border-top: 1px solid var(--line);
  box-shadow: 0 -8px 30px rgba(28, 31, 36, 0.08);
  padding: 1.25rem 0;
  transform: translateY(110%);
  transition: transform 0.35s ease;
}

.cookie-banner.is-visible {
  transform: translateY(0);
}

.cookie-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.cookie-inner p {
  margin: 0;
  flex: 1;
  min-width: 240px;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.cookie-actions {
  display: flex;
  gap: 0.65rem;
  flex-wrap: wrap;
}

/* Footer */
.site-footer {
  margin-top: 4rem;
  background: #1c1f24;
  color: #c8ccd2;
  padding: 3.5rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr) 1.3fr;
  gap: 2rem;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.75rem;
}

.footer-tag {
  font-size: 0.9rem;
  max-width: 28ch;
}

.footer-heading {
  color: #fff;
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 0.85rem;
}

.footer-col a {
  display: block;
  color: #c8ccd2;
  text-decoration: none;
  font-size: 0.92rem;
  padding: 0.2rem 0;
}

.footer-col a:hover { color: #fff; }

.footer-contact p {
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.footer-contact a { color: #c8ccd2; }

.footer-bottom {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.85rem;
}

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

@media (max-width: 550px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* 404 */
.error-page {
  min-height: 60vh;
  display: grid;
  place-content: center;
  text-align: center;
  padding: 4rem 1rem;
}

.error-page .code {
  font-family: var(--font-display);
  font-size: clamp(5rem, 15vw, 8rem);
  letter-spacing: -0.05em;
  color: var(--accent-soft);
  line-height: 1;
}

/* Inline script errors */
.runtime-error {
  background: #f8ecec;
  color: var(--error);
  border: 1px solid var(--error);
  padding: 0.75rem 1rem;
  margin: 0.5rem 0;
  font-size: 0.9rem;
}

/* Animations */
@keyframes rise {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Split content */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.split img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

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

.rating {
  color: var(--highlight);
  font-weight: 700;
  letter-spacing: 0.05em;
}

.article-meta {
  color: var(--ink-soft);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

.article-cover {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  margin-bottom: 2rem;
}

.narrow {
  max-width: 42rem;
  margin-inline: auto;
}