:root {
  --bg: #f4f6f8;
  --bg-deep: #e8ecf1;
  --surface: #ffffff;
  --ink: #16191f;
  --ink-soft: #3d4450;
  --muted: #6a7380;
  --line: #d9dee6;
  --accent: #1f5c57;
  --accent-hover: #164743;
  --accent-soft: #e4efee;
  --gold: #b08d45;
  --error: #9b2c2c;
  --success: #1f5c57;
  --radius: 4px;
  --radius-lg: 10px;
  --shadow: 0 18px 40px rgba(22, 25, 31, 0.06);
  --font-display: "Syne", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
  --space: clamp(1rem, 2vw, 1.5rem);
  --max: 1120px;
  --header-h: 4.25rem;
}

*,
*::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 500px at 10% -10%, #dfe8e7 0%, transparent 55%),
    radial-gradient(900px 400px at 100% 0%, #e7eaf0 0%, transparent 50%),
    var(--bg);
  min-height: 100vh;
}

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

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

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

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

h1 { font-size: clamp(2.4rem, 5.5vw, 4.1rem); }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.45rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.45rem); }

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -100px;
  background: var(--ink);
  color: #fff;
  padding: 0.6rem 1rem;
  z-index: 1000;
}

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

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(244, 246, 248, 0.88);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-h);
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--ink);
}

.brand-mark {
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 4px;
  background: linear-gradient(145deg, var(--accent), #2f7a73);
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.15);
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.03em;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.55rem 0.7rem;
  cursor: pointer;
}

.nav-toggle-bars,
.nav-toggle-bars::before,
.nav-toggle-bars::after {
  display: block;
  width: 1.15rem;
  height: 2px;
  background: var(--ink);
  position: relative;
}

.nav-toggle-bars::before,
.nav-toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle-bars::before { top: -5px; }
.nav-toggle-bars::after { top: 5px; }

.nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 0.15rem 1.1rem;
  flex-wrap: wrap;
}

.nav-list a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-weight: 560;
}

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

.nav-cta {
  background: var(--accent);
  color: #fff !important;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius);
}

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

@media (max-width: 920px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: var(--header-h);
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    display: none;
    padding: 1rem 1.25rem 1.25rem;
  }
  .site-nav.is-open { display: block; }
  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.85rem;
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.85rem 1.35rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-family: var(--font-body);
  font-weight: 650;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, 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-soft);
  color: var(--ink);
}

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

/* Hero variants */
.hero-home {
  position: relative;
  min-height: min(92vh, 820px);
  display: grid;
  align-items: end;
  overflow: hidden;
  color: #fff;
}

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

.hero-home-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
  animation: heroDrift 22s ease-in-out infinite alternate;
}

.hero-home::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgba(16, 20, 24, 0.82) 18%, rgba(16, 20, 24, 0.45) 58%, rgba(16, 20, 24, 0.25) 100%),
    linear-gradient(0deg, rgba(16, 20, 24, 0.55), transparent 40%);
  z-index: 1;
}

.hero-home-content {
  position: relative;
  z-index: 2;
  width: min(100% - 2.5rem, var(--max));
  margin: 0 auto;
  padding: 5rem 0 4rem;
  max-width: 38rem;
}

.hero-kicker {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
  color: #fff;
  opacity: 0;
  animation: riseIn 0.8s ease forwards 0.15s;
}

.hero-home h1 {
  color: #fff;
  margin-bottom: 1rem;
  opacity: 0;
  animation: riseIn 0.85s ease forwards 0.35s;
}

.hero-home p {
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.1rem;
  max-width: 34rem;
  opacity: 0;
  animation: riseIn 0.85s ease forwards 0.55s;
}

.hero-home .btn-row {
  opacity: 0;
  animation: riseIn 0.85s ease forwards 0.7s;
}

.hero-page {
  padding: 4.5rem 0 3rem;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(31, 92, 87, 0.06), transparent 70%);
}

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

@keyframes riseIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes heroDrift {
  from { transform: scale(1.02) translate3d(0, 0, 0); }
  to { transform: scale(1.08) translate3d(-1.5%, 1%, 0); }
}

/* Sections */
.section {
  padding: clamp(3.5rem, 7vw, 5.5rem) 0;
}

.section-tight {
  padding: clamp(2.5rem, 5vw, 3.5rem) 0;
}

.section-alt {
  background: rgba(255, 255, 255, 0.55);
  border-block: 1px solid var(--line);
}

.section-head {
  max-width: 38rem;
  margin-bottom: 2.25rem;
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 0.65rem;
}

.metric-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: -2.5rem;
  position: relative;
  z-index: 3;
  box-shadow: var(--shadow);
}

.metric {
  background: var(--surface);
  padding: 1.5rem 1.25rem;
  text-align: center;
}

.metric strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  color: var(--ink);
  letter-spacing: -0.03em;
}

.metric span {
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 700px) {
  .metric-band { grid-template-columns: 1fr; margin-top: 1.5rem; }
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.feature-item {
  padding-top: 1rem;
  border-top: 2px solid var(--accent);
}

.feature-item p { margin-bottom: 0; }

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

.course-grid,
.blog-grid,
.pricing-grid,
.review-grid {
  display: grid;
  gap: 1.5rem;
}

.course-grid,
.blog-grid {
  grid-template-columns: repeat(3, 1fr);
}

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

.tile {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

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

.tile-media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--bg-deep);
}

.tile-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.45s ease;
}

.tile:hover .tile-media img {
  transform: scale(1.04);
}

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

.tile-meta {
  font-size: 0.82rem;
  color: var(--muted);
  margin-bottom: 0.45rem;
}

.tile-body h3 {
  margin-bottom: 0.5rem;
}

.tile-body h3 a {
  color: inherit;
  text-decoration: none;
}

.tile-body h3 a:hover {
  color: var(--accent);
}

.featured-split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 2.5rem;
  align-items: center;
}

.featured-split img {
  width: 100%;
  border-radius: var(--radius-lg);
  min-height: 320px;
  object-fit: cover;
}

@media (max-width: 860px) {
  .featured-split { grid-template-columns: 1fr; }
}

.quote-stack {
  display: grid;
  gap: 1.25rem;
}

.quote {
  background: var(--surface);
  border-left: 3px solid var(--accent);
  padding: 1.25rem 1.4rem;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
}

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

.quote footer {
  color: var(--muted);
  font-size: 0.9rem;
}

.cta-band {
  background: linear-gradient(135deg, #173f3c, #1f5c57 55%, #2a6f69);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: clamp(2rem, 4vw, 3rem);
}

.cta-band h2,
.cta-band p { color: #fff; }

.cta-band p { opacity: 0.9; max-width: 36rem; }

.cta-band .btn-ghost {
  border-color: rgba(255, 255, 255, 0.4);
  color: #fff;
}

.cta-band .btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
}

/* Pricing */
.pricing-grid {
  grid-template-columns: repeat(3, 1fr);
  align-items: stretch;
}

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

.price-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
}

.price-card.featured {
  border-color: var(--accent);
  box-shadow: var(--shadow);
  transform: translateY(-6px);
}

.price-card .amount {
  font-family: var(--font-display);
  font-size: 2.4rem;
  letter-spacing: -0.03em;
  margin: 0.5rem 0 0.25rem;
}

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

.price-card ul {
  margin: 1.25rem 0 1.5rem;
  padding-left: 1.1rem;
  color: var(--ink-soft);
  flex: 1;
}

.price-card li { margin-bottom: 0.45rem; }

.note {
  font-size: 0.92rem;
  color: var(--muted);
  margin-top: 1.5rem;
}

/* Forms */
.contact-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
}

@media (max-width: 860px) {
  .contact-layout { grid-template-columns: 1fr; }
}

.form-card,
.info-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
}

.form-group {
  margin-bottom: 1.15rem;
}

.form-group label {
  display: block;
  font-weight: 650;
  margin-bottom: 0.4rem;
  font-size: 0.92rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.75rem 0.85rem;
  font: inherit;
  background: #fff;
  color: var(--ink);
}

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: 2px solid rgba(31, 92, 87, 0.35);
  border-color: var(--accent);
}

.field-error {
  color: var(--error);
  font-size: 0.85rem;
  margin-top: 0.35rem;
  display: none;
}

.form-group.has-error .field-error { display: block; }
.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea {
  border-color: var(--error);
}

.form-status {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  display: none;
}

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

.form-status.is-error {
  display: block;
  background: #f8e8e8;
  color: var(--error);
}

.info-card address {
  font-style: normal;
  margin-bottom: 1rem;
  color: var(--ink-soft);
}

/* Legal */
.legal-content {
  max-width: 46rem;
}

.legal-content h2 {
  margin-top: 2.25rem;
}

.legal-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0 1.75rem;
  font-size: 0.92rem;
}

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

.legal-content th {
  background: var(--bg-deep);
}

/* Course detail */
.module-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.85rem;
}

.module-list li {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.15rem;
}

.module-list strong {
  display: block;
  font-family: var(--font-display);
  margin-bottom: 0.25rem;
}

.instructor {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1.25rem;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
}

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

@media (max-width: 600px) {
  .instructor { grid-template-columns: 1fr; justify-items: start; }
}

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

.faq summary {
  cursor: pointer;
  font-weight: 650;
  color: var(--ink);
}

.faq details p {
  margin: 0.75rem 0 0.25rem;
}

.prose {
  max-width: 42rem;
}

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

.article-hero {
  margin: 0 0 2rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 21 / 9;
}

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

.breadcrumb {
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 1rem;
}

.breadcrumb a {
  color: var(--muted);
  text-decoration: none;
}

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

/* Reviews */
.review-grid {
  grid-template-columns: repeat(2, 1fr);
}

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

.review-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 1.4rem;
}

.stars {
  color: var(--gold);
  letter-spacing: 0.08em;
  margin-bottom: 0.65rem;
  font-size: 0.9rem;
}

.case-study {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  margin-top: 1.5rem;
}

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

.page-404 .code {
  font-family: var(--font-display);
  font-size: clamp(4rem, 12vw, 7rem);
  letter-spacing: -0.05em;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 0.5rem;
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 200;
  max-width: 520px;
  margin-left: auto;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 1.15rem 1.25rem;
  display: none;
}

.cookie-banner.is-visible { display: block; animation: riseIn 0.35s ease; }

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

.cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.inline-error {
  background: #f8e8e8;
  color: var(--error);
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  margin: 1rem 0;
}

/* Footer */
.site-footer {
  margin-top: 3rem;
  background: #15181e;
  color: rgba(255, 255, 255, 0.78);
  padding: 3.5rem 0 2rem;
}

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

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

.footer-tag {
  color: rgba(255, 255, 255, 0.65);
  max-width: 28rem;
}

.footer-cols {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr) 1.3fr;
  gap: 1.5rem;
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand { grid-column: 1 / -1; }

.footer-heading {
  color: #fff;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.85rem;
  font-weight: 700;
}

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

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

.footer-col a,
.footer-address,
.footer-col p {
  color: rgba(255, 255, 255, 0.68);
  text-decoration: none;
  font-size: 0.95rem;
}

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

.footer-address {
  font-style: normal;
  margin-bottom: 0.75rem;
  line-height: 1.55;
}

.footer-bottom {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.5);
}

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

@media (max-width: 560px) {
  .footer-cols {
    grid-template-columns: 1fr;
  }
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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