/* DevCloud Sphere — premium dark theme */
:root {
  --bg-deep: #070a12;
  --bg: #0b0f1a;
  --bg-elevated: #121829;
  --bg-panel: #161e33;
  --border: rgba(201, 162, 39, 0.18);
  --border-subtle: rgba(232, 236, 244, 0.08);
  --gold: #c9a227;
  --gold-soft: #e0c56a;
  --gold-dim: rgba(201, 162, 39, 0.14);
  --blue: #5b8def;
  --blue-soft: #8bb0f7;
  --text: #e8ecf4;
  --text-muted: #9aa6bf;
  --text-dim: #6b7894;
  --success: #3ecf8e;
  --error: #f07178;
  --radius: 4px;
  --font-display: "Cormorant Garamond", Georgia, serif;
  --font-body: "Outfit", "Segoe UI", sans-serif;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  --header-h: 72px;
  --max: 1120px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg-deep);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(91, 141, 239, 0.16), transparent 55%),
    radial-gradient(ellipse 60% 40% at 90% 10%, rgba(201, 162, 39, 0.1), transparent 50%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
}

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

a {
  color: var(--gold-soft);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: 0.01em;
  margin: 0 0 0.6em;
}

h1 { font-size: clamp(2.4rem, 5vw, 3.75rem); }
h2 { font-size: clamp(1.85rem, 3.2vw, 2.55rem); }
h3 { font-size: clamp(1.35rem, 2vw, 1.65rem); }

p { margin: 0 0 1em; color: var(--text-muted); }

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(7, 10, 18, 0.82);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--text);
}

.logo-mark {
  width: 36px;
  height: 36px;
  border: 1.5px solid var(--gold);
  border-radius: 50%;
  position: relative;
  flex-shrink: 0;
}

.logo-mark::after {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1.5px solid var(--blue);
  border-radius: 50%;
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.logo-text span {
  color: var(--gold);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  width: 44px;
  height: 44px;
  cursor: pointer;
  border-radius: var(--radius);
  font-size: 1.25rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 0.15rem;
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.45rem 0.7rem;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  transition: color 0.2s, background 0.2s;
}

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

.nav a.nav-cta {
  margin-left: 0.5rem;
  background: linear-gradient(135deg, var(--gold), #a8841a);
  color: #0b0f1a;
  font-weight: 600;
  padding: 0.5rem 1rem;
}

.nav a.nav-cta:hover {
  background: linear-gradient(135deg, var(--gold-soft), var(--gold));
  color: #0b0f1a;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--gold), #a8841a);
  color: #0b0f1a;
  box-shadow: 0 8px 28px rgba(201, 162, 39, 0.28);
}

.btn-primary:hover {
  color: #0b0f1a;
  box-shadow: 0 12px 36px rgba(201, 162, 39, 0.4);
}

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

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

.btn-blue {
  background: linear-gradient(135deg, var(--blue), #3a6fd4);
  color: #fff;
}

/* Hero variants */
.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;
  filter: brightness(0.38) saturate(0.85);
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgba(7, 10, 18, 0.92) 0%, rgba(7, 10, 18, 0.55) 48%, rgba(7, 10, 18, 0.35) 100%),
    linear-gradient(0deg, var(--bg-deep) 0%, transparent 40%);
}

.hero-content {
  position: relative;
  z-index: 1;
  padding: 4rem 0 5rem;
  max-width: 640px;
  animation: rise 0.9s ease both;
}

.brand-signal {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: var(--gold);
  margin-bottom: 0.35rem;
  letter-spacing: 0.04em;
}

.hero-content h1 {
  margin-bottom: 0.75rem;
  color: var(--text);
}

.hero-lede {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 36ch;
  margin-bottom: 1.75rem;
}

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

/* Page hero (inner) */
.page-hero {
  padding: 3.5rem 0 2.5rem;
  border-bottom: 1px solid var(--border-subtle);
  position: relative;
}

.page-hero.with-image {
  min-height: 340px;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  border-bottom: none;
  margin-bottom: 2rem;
}

.page-hero.with-image .page-hero-bg {
  position: absolute;
  inset: 0;
}

.page-hero.with-image .page-hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.35);
}

.page-hero.with-image .page-hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(7, 10, 18, 0.4), var(--bg-deep));
}

.page-hero.with-image .container {
  position: relative;
  z-index: 1;
  padding-bottom: 2.5rem;
}

.eyebrow {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--gold);
  margin-bottom: 0.75rem;
  font-weight: 600;
}

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

.section-tight {
  padding: 3rem 0;
}

.section-head {
  max-width: 560px;
  margin-bottom: 2.5rem;
}

.section-head p {
  margin-bottom: 0;
}

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

.split img {
  width: 100%;
  height: 360px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--border-subtle);
}

/* Proof strip */
.proof-strip {
  border-block: 1px solid var(--border-subtle);
  background: rgba(18, 24, 41, 0.65);
  padding: 2rem 0;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  text-align: center;
}

.proof-num {
  font-family: var(--font-display);
  font-size: 2.4rem;
  color: var(--gold);
  display: block;
  line-height: 1;
  margin-bottom: 0.4rem;
}

.proof-label {
  font-size: 0.9rem;
  color: var(--text-dim);
}

/* Course cards / 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: 1.5rem;
}

.course-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.25s, transform 0.25s;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
}

.course-card:hover {
  border-color: var(--border);
  transform: translateY(-3px);
}

.course-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.course-card-body {
  padding: 1.35rem 1.4rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.course-card h3 {
  color: var(--text);
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
}

.course-card p {
  font-size: 0.95rem;
  flex: 1;
}

.course-meta {
  font-size: 0.82rem;
  color: var(--gold);
  margin-top: 1rem;
  letter-spacing: 0.04em;
}

/* Benefit list */
.benefit-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 1.25rem;
}

.benefit-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.benefit-list li:last-child {
  border-bottom: none;
}

.benefit-icon {
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: var(--gold);
  font-size: 0.85rem;
  flex-shrink: 0;
}

.benefit-list h3 {
  margin-bottom: 0.3rem;
  font-size: 1.25rem;
}

.benefit-list p {
  margin: 0;
  font-size: 0.95rem;
}

/* Testimonials */
.quote-block {
  background: var(--bg-panel);
  border-left: 2px solid var(--gold);
  padding: 1.75rem 1.75rem 1.5rem;
  margin-bottom: 1.25rem;
}

.quote-block p {
  color: var(--text);
  font-size: 1.05rem;
  margin-bottom: 1rem;
}

.quote-attr {
  font-size: 0.88rem;
  color: var(--text-dim);
}

.quote-attr strong {
  color: var(--gold-soft);
  font-weight: 500;
}

.stars {
  color: var(--gold);
  letter-spacing: 0.1em;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}

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

.price-tier {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  transition: border-color 0.25s;
}

.price-tier:hover {
  border-color: var(--border);
}

.price-tier.featured {
  border-color: var(--gold);
  background: linear-gradient(165deg, rgba(201, 162, 39, 0.08), var(--bg-elevated) 40%);
  box-shadow: var(--shadow);
}

.price-tier h3 {
  color: var(--gold-soft);
  margin-bottom: 0.35rem;
}

.price-amount {
  font-family: var(--font-display);
  font-size: 2.6rem;
  color: var(--text);
  margin: 0.75rem 0 0.25rem;
}

.price-amount small {
  font-size: 1rem;
  color: var(--text-dim);
  font-family: var(--font-body);
}

.price-tier > p {
  font-size: 0.92rem;
  margin-bottom: 1.5rem;
}

.price-tier ul {
  list-style: none;
  padding: 0;
  margin: 0 0 2rem;
  flex: 1;
}

.price-tier li {
  padding: 0.45rem 0;
  padding-left: 1.2rem;
  position: relative;
  font-size: 0.92rem;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-subtle);
}

.price-tier li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.95rem;
  width: 6px;
  height: 6px;
  background: var(--gold);
  border-radius: 50%;
}

/* Forms */
.form-wrap {
  max-width: 560px;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
  color: var(--text);
  font-weight: 500;
}

.form-group .optional {
  color: var(--text-dim);
  font-weight: 400;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--gold);
}

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

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

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

.form-group.has-error .field-error {
  display: block;
}

.form-status {
  display: none;
  padding: 1rem 1.15rem;
  border-radius: var(--radius);
  margin-top: 1rem;
  font-size: 0.95rem;
}

.form-status.success {
  display: block;
  background: rgba(62, 207, 142, 0.12);
  border: 1px solid rgba(62, 207, 142, 0.35);
  color: var(--success);
}

.form-status.error {
  display: block;
  background: rgba(240, 113, 120, 0.12);
  border: 1px solid rgba(240, 113, 120, 0.35);
  color: var(--error);
}

.contact-details {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  padding: 1.75rem;
  border-radius: var(--radius);
}

.contact-details dt {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gold);
  margin-top: 1.15rem;
}

.contact-details dt:first-child {
  margin-top: 0;
}

.contact-details dd {
  margin: 0.35rem 0 0;
  color: var(--text-muted);
}

/* Blog */
.blog-card {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 1.5rem;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--border-subtle);
  text-decoration: none;
  color: inherit;
  transition: opacity 0.2s;
}

.blog-card:hover {
  opacity: 0.9;
}

.blog-card img {
  width: 100%;
  height: 130px;
  object-fit: cover;
  border-radius: var(--radius);
}

.blog-card h3 {
  color: var(--text);
  font-size: 1.4rem;
  margin-bottom: 0.4rem;
}

.blog-meta {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-bottom: 0.5rem;
}

.article-body {
  max-width: 720px;
}

.article-body h2 {
  margin-top: 2.25rem;
}

.article-cover {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  border-radius: var(--radius);
  margin: 1.5rem 0 2rem;
  border: 1px solid var(--border-subtle);
}

/* FAQ */
.faq-item {
  border-bottom: 1px solid var(--border-subtle);
  padding: 1.25rem 0;
}

.faq-item h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.faq-item p {
  margin: 0;
  font-size: 0.95rem;
}

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

.module-list li {
  counter-increment: mod;
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1rem;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.module-list li::before {
  content: counter(mod, decimal-leading-zero);
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--gold);
}

.module-list h3 {
  margin-bottom: 0.3rem;
  font-size: 1.2rem;
}

.module-list p {
  margin: 0;
  font-size: 0.92rem;
}

/* Instructor */
.instructor {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1.5rem;
  align-items: start;
  background: var(--bg-elevated);
  padding: 1.5rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
}

.instructor img {
  width: 120px;
  height: 120px;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid var(--border);
}

/* Tables */
.cookie-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 1.5rem 0;
}

.cookie-table th,
.cookie-table td {
  text-align: left;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border-subtle);
}

.cookie-table th {
  background: var(--bg-panel);
  color: var(--gold-soft);
  font-weight: 500;
}

.cookie-table td {
  color: var(--text-muted);
}

/* Legal */
.legal-body {
  max-width: 760px;
  padding-bottom: 4rem;
}

.legal-body h2 {
  margin-top: 2.5rem;
  font-size: 1.55rem;
}

.legal-body ul {
  color: var(--text-muted);
  padding-left: 1.25rem;
}

.legal-body li {
  margin-bottom: 0.4rem;
}

/* CTA band */
.cta-band {
  margin: 2rem 0 4rem;
  padding: 3rem;
  background:
    linear-gradient(135deg, rgba(201, 162, 39, 0.12), rgba(91, 141, 239, 0.08)),
    var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
}

.cta-band h2 {
  margin-bottom: 0.5rem;
}

.cta-band p {
  max-width: 42ch;
  margin: 0 auto 1.5rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  background: #05070e;
  padding: 3.5rem 0 2rem;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--text);
  margin-bottom: 0.75rem;
}

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

.site-footer h4 {
  font-family: var(--font-body);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--gold);
  margin-bottom: 1rem;
  font-weight: 600;
}

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

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

.site-footer a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.92rem;
}

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

.footer-contact p {
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  color: var(--text-muted);
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: rgba(12, 16, 28, 0.96);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--border);
  padding: 1.25rem 0;
  transform: translateY(110%);
  transition: transform 0.35s ease;
}

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

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

.cookie-banner p {
  margin: 0;
  flex: 1;
  min-width: 240px;
  font-size: 0.92rem;
}

.cookie-actions {
  display: flex;
  gap: 0.65rem;
  flex-shrink: 0;
}

.cookie-actions .btn {
  padding: 0.65rem 1.2rem;
  font-size: 0.88rem;
}

/* 404 */
.error-page {
  min-height: calc(100vh - var(--header-h) - 280px);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 4rem 0;
}

.error-page .code {
  font-family: var(--font-display);
  font-size: clamp(5rem, 15vw, 9rem);
  color: var(--gold);
  line-height: 1;
  margin-bottom: 0.5rem;
  opacity: 0.85;
}

/* Inline script errors */
.script-error {
  background: rgba(240, 113, 120, 0.12);
  border: 1px solid rgba(240, 113, 120, 0.35);
  color: var(--error);
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  margin: 0.5rem 0;
}

/* Case study */
.case-study {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  padding: 2rem;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
}

.case-study h3 {
  color: var(--gold-soft);
}

/* Animations */
@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

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

/* Outcomes checklist */
.outcomes {
  list-style: none;
  padding: 0;
  margin: 0;
}

.outcomes li {
  padding: 0.65rem 0 0.65rem 1.5rem;
  position: relative;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-subtle);
}

.outcomes li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--gold);
}

/* Responsive */
@media (max-width: 960px) {
  .grid-3,
  .pricing-grid,
  .proof-grid,
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .split {
    grid-template-columns: 1fr;
  }

  .split img {
    height: 260px;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: grid;
    place-items: center;
  }

  .nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: rgba(7, 10, 18, 0.98);
    border-bottom: 1px solid var(--border);
    padding: 1rem;
    gap: 0.25rem;
  }

  .nav.is-open {
    display: flex;
    animation: fade-in 0.25s ease;
  }

  .nav a.nav-cta {
    margin-left: 0;
    text-align: center;
  }

  .grid-3,
  .pricing-grid,
  .proof-grid,
  .footer-grid,
  .grid-2 {
    grid-template-columns: 1fr;
  }

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

  .blog-card img {
    height: 180px;
  }

  .instructor {
    grid-template-columns: 1fr;
    justify-items: start;
  }

  .hero {
    min-height: 70vh;
  }

  .cookie-banner .container {
    flex-direction: column;
    align-items: stretch;
  }

  .cookie-actions {
    width: 100%;
  }

  .cookie-actions .btn {
    flex: 1;
  }
}