:root {
  --ink: #0d100c;
  --ink-soft: #171b14;
  --panel: #1d2319;
  --line: rgba(231, 226, 214, 0.14);
  --paper: #e7e2d6;
  --muted: #a8a498;
  --brass: #c4a35a;
  --brass-deep: #9a7d3a;
  --forest: #2f3d28;
  --danger: #c45c4a;
  --ok: #6f9b6a;
  --font-display: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "Source Sans 3", "Segoe UI", sans-serif;
  --shell: min(1120px, calc(100% - 2.5rem));
  --header-h: 4.5rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--paper);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(47, 61, 40, 0.55), transparent 55%),
    radial-gradient(900px 500px at 100% 0%, rgba(196, 163, 90, 0.12), transparent 45%),
    linear-gradient(180deg, #10140e 0%, var(--ink) 40%, #0a0c09 100%);
  background-attachment: fixed;
}

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

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

a:hover {
  color: #e0c67a;
}

h1, h2, h3, .display {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.03em;
  line-height: 1.08;
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

.shell {
  width: var(--shell);
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 100;
  background: var(--brass);
  color: var(--ink);
  padding: 0.6rem 1rem;
  font-weight: 700;
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-h);
  backdrop-filter: blur(14px);
  background: rgba(13, 16, 12, 0.78);
  border-bottom: 1px solid var(--line);
  transition: background 0.25s ease, border-color 0.25s ease;
}

.site-header.is-scrolled {
  background: rgba(13, 16, 12, 0.94);
  border-bottom-color: rgba(196, 163, 90, 0.25);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: inherit;
  text-decoration: none;
}

.brand-mark {
  flex-shrink: 0;
  border-radius: 8px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.55rem;
  letter-spacing: 0.08em;
}

.brand-sub {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

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

.nav-link {
  color: var(--paper);
  text-decoration: none;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  opacity: 0.82;
}

.nav-link:hover,
.nav-link.is-active {
  opacity: 1;
  color: var(--brass);
}

.nav-cta,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.35rem;
  border: 1px solid transparent;
  background: var(--brass);
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.nav-cta:hover,
.btn:hover {
  background: #d4b56a;
  color: var(--ink);
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  border-color: rgba(231, 226, 214, 0.35);
  color: var(--paper);
}

.btn--ghost:hover {
  border-color: var(--brass);
  color: var(--brass);
  background: transparent;
}

.nav-toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--line);
  background: transparent;
  padding: 0;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 1.2rem;
  height: 2px;
  margin: 0.28rem auto;
  background: var(--paper);
}

/* Hero */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: grid;
  align-items: end;
  overflow: hidden;
}

.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 ease-in-out infinite alternate;
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(13, 16, 12, 0.35) 0%, rgba(13, 16, 12, 0.72) 48%, rgba(13, 16, 12, 0.96) 100%),
    linear-gradient(90deg, rgba(13, 16, 12, 0.7) 0%, rgba(13, 16, 12, 0.2) 55%, rgba(13, 16, 12, 0.55) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: clamp(3rem, 8vw, 6rem) 0 4.5rem;
  max-width: 42rem;
}

.hero-kicker {
  margin: 0 0 0.85rem;
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--brass);
}

.hero h1 {
  margin: 0;
  font-size: clamp(3.2rem, 9vw, 6.2rem);
  letter-spacing: 0.045em;
}

.hero h1 span {
  display: block;
  font-size: 0.42em;
  letter-spacing: 0.14em;
  color: var(--muted);
  margin-top: 0.35rem;
  font-weight: 500;
}

.hero-lead {
  margin: 1.25rem 0 1.75rem;
  max-width: 34rem;
  color: rgba(231, 226, 214, 0.88);
  font-size: 1.12rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

@keyframes heroDrift {
  from { transform: scale(1.04) translate3d(0, 0, 0); }
  to { transform: scale(1.08) translate3d(-1.5%, -1%, 0); }
}

/* Sections */
.section {
  padding: clamp(3.5rem, 7vw, 6rem) 0;
}

.section--tight {
  padding-top: 2.5rem;
}

.section-head {
  display: grid;
  gap: 0.75rem;
  margin-bottom: 2rem;
  max-width: 40rem;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3rem);
}

.section-head p {
  margin: 0;
  color: var(--muted);
}

.eyebrow {
  margin: 0;
  color: var(--brass);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

/* Visual band / previews */
.visual-band {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1rem;
  min-height: 28rem;
}

.visual-main,
.visual-side {
  position: relative;
  overflow: hidden;
  min-height: 16rem;
  background: var(--panel);
}

.visual-main img,
.visual-side img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
}

.visual-main:hover img,
.visual-side:hover img {
  transform: scale(1.05);
}

.visual-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 1.25rem 1.4rem;
  background: linear-gradient(transparent, rgba(8, 10, 7, 0.92));
}

.visual-caption strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.05em;
}

.visual-caption span {
  color: var(--muted);
  font-size: 0.95rem;
}

.visual-stack {
  display: grid;
  gap: 1rem;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

.split-copy h2 {
  margin: 0.4rem 0 1rem;
  font-size: clamp(2rem, 4vw, 2.8rem);
}

.split-copy p {
  color: rgba(231, 226, 214, 0.86);
}

.split-media {
  min-height: 22rem;
  overflow: hidden;
  background: var(--panel);
}

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

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

.course-tile {
  position: relative;
  display: block;
  min-height: 18rem;
  overflow: hidden;
  color: inherit;
  text-decoration: none;
  background: var(--panel);
  isolation: isolate;
}

.course-tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease, filter 0.6s ease;
  filter: saturate(0.9) brightness(0.78);
}

.course-tile:hover img {
  transform: scale(1.06);
  filter: saturate(1) brightness(0.9);
}

.course-tile-body {
  position: absolute;
  inset: auto 0 0 0;
  padding: 1.3rem;
  background: linear-gradient(transparent, rgba(8, 10, 7, 0.95));
}

.course-tile h3 {
  margin: 0 0 0.35rem;
  font-size: 1.35rem;
}

.course-meta {
  display: flex;
  gap: 0.85rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.course-meta b {
  color: var(--brass);
  font-weight: 600;
}

/* Detail */
.page-hero {
  position: relative;
  min-height: 48vh;
  display: grid;
  align-items: end;
  overflow: hidden;
}

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

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

.page-hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(13, 16, 12, 0.2), rgba(13, 16, 12, 0.92));
}

.page-hero-content {
  position: relative;
  z-index: 1;
  padding: 4rem 0 2.5rem;
}

.page-hero h1 {
  margin: 0.4rem 0 0.6rem;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
}

.detail-layout {
  display: grid;
  grid-template-columns: 1.35fr 0.85fr;
  gap: 2rem;
  align-items: start;
}

.prose p {
  color: rgba(231, 226, 214, 0.88);
}

.panel {
  background: rgba(29, 35, 25, 0.92);
  border: 1px solid var(--line);
  padding: 1.5rem;
}

.panel h2 {
  margin: 0 0 1rem;
  font-size: 1.6rem;
}

.form {
  display: grid;
  gap: 0.9rem;
}

.form label {
  display: grid;
  gap: 0.35rem;
  font-size: 0.92rem;
  color: var(--muted);
}

.form input,
.form textarea,
.form select {
  width: 100%;
  border: 1px solid rgba(231, 226, 214, 0.2);
  background: rgba(8, 10, 7, 0.55);
  color: var(--paper);
  padding: 0.85rem 0.95rem;
  font: inherit;
}

.form input:focus,
.form textarea:focus,
.form select:focus {
  outline: 2px solid rgba(196, 163, 90, 0.55);
  outline-offset: 1px;
}

.form textarea {
  min-height: 8rem;
  resize: vertical;
}

.alert {
  padding: 0.9rem 1rem;
  border: 1px solid var(--line);
  margin-bottom: 1rem;
}

.alert--ok {
  border-color: rgba(111, 155, 106, 0.55);
  color: #c9e2c6;
}

.alert--error {
  border-color: rgba(196, 92, 74, 0.55);
  color: #f0c4bd;
}

/* Blog */
.blog-list {
  display: grid;
  gap: 1.25rem;
}

.blog-item {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 1.25rem;
  align-items: stretch;
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 1.25rem;
}

.blog-item img {
  width: 100%;
  height: 100%;
  min-height: 140px;
  object-fit: cover;
}

.blog-item h3 {
  margin: 0.25rem 0 0.5rem;
  font-size: 1.55rem;
}

.blog-item p {
  margin: 0;
  color: var(--muted);
}

.blog-date {
  color: var(--brass);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Contact */
.contact-solo {
  max-width: 40rem;
  display: grid;
  gap: 1.25rem;
}

.contact-details p,
.contact-details address {
  margin: 0 0 0.75rem;
  font-style: normal;
  color: rgba(231, 226, 214, 0.88);
}

/* Footer */
.site-footer {
  margin-top: 2rem;
  border-top: 1px solid var(--line);
  background: #0a0c09;
  padding: 3rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 0.8fr 1fr;
  gap: 1.75rem;
}

.footer-brand p,
.site-footer address,
.site-footer p {
  color: var(--muted);
}

.footer-heading {
  margin: 0 0 0.85rem;
  font-size: 1rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper);
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.45rem;
}

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

.footer-links a:hover {
  color: var(--brass);
}

.footer-base {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: 0.9rem;
}

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

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

/* Responsive */
@media (max-width: 960px) {
  .visual-band,
  .split,
  .detail-layout,
  .footer-grid,
  .course-menu {
    grid-template-columns: 1fr;
  }

  .course-menu {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 760px) {
  .nav-toggle {
    display: inline-block;
  }

  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 1rem 1.25rem 1.25rem;
    background: rgba(13, 16, 12, 0.98);
    border-bottom: 1px solid var(--line);
  }

  .site-nav.is-open {
    display: flex;
  }

  .nav-link,
  .nav-cta {
    padding: 0.85rem 0;
  }

  .blog-item {
    grid-template-columns: 1fr;
  }

  .course-menu {
    grid-template-columns: 1fr;
  }
}