/* Dev Cloud Hub — teal slate editorial theme */
:root {
  --ink: #0b2426;
  --ink-soft: #1a3a3d;
  --teal: #0d3b3e;
  --teal-mid: #1a5c61;
  --mint: #7ec8c0;
  --mint-soft: #b8e0db;
  --sand: #e8a87c;
  --sand-deep: #c47d4a;
  --fog: #dce8e6;
  --paper: #f2f7f6;
  --white: #fafcfb;
  --muted: #4a6365;
  --line: rgba(13, 59, 62, 0.14);
  --danger: #a63d2f;
  --ok: #1f6b4a;
  --shadow: 0 18px 48px rgba(11, 36, 38, 0.12);
  --radius: 6px;
  --font-display: "Syne", sans-serif;
  --font-body: "Source Serif 4", Georgia, serif;
  --font-ui: "DM Sans", system-ui, sans-serif;
  --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(ellipse 80% 50% at 10% -10%, rgba(126, 200, 192, 0.28), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(232, 168, 124, 0.18), transparent 50%),
    linear-gradient(180deg, var(--paper) 0%, var(--fog) 100%);
  background-attachment: fixed;
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.35;
  background-image:
    linear-gradient(rgba(13, 59, 62, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(13, 59, 62, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
}

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

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

a:hover {
  color: var(--sand-deep);
}

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

p {
  margin: 0 0 1rem;
}

.visually-hidden {
  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;
  background: var(--teal);
  color: var(--white);
  padding: 0.6rem 1rem;
  z-index: 1000;
  font-family: var(--font-ui);
}

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

#site-header,
#site-footer,
#main {
  position: relative;
  z-index: 1;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 252, 251, 0.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

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

.brand-mark {
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 0.4rem;
  background:
    radial-gradient(circle at 70% 30%, var(--sand), transparent 45%),
    linear-gradient(145deg, var(--teal-mid), var(--teal));
  box-shadow: inset 0 0 0 2px rgba(126, 200, 192, 0.45);
}

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

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

.site-nav a {
  font-family: var(--font-ui);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--ink-soft);
}

.site-nav a:hover {
  color: var(--teal-mid);
}

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

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

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius);
  cursor: pointer;
  position: relative;
}

.nav-toggle-bar,
.nav-toggle-bar::before,
.nav-toggle-bar::after {
  display: block;
  width: 1.1rem;
  height: 2px;
  background: var(--ink);
  margin: 0 auto;
  position: relative;
}

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

.nav-toggle-bar::before { top: -6px; }
.nav-toggle-bar::after { top: 6px; }

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .site-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    padding: 1rem 1.25rem 1.25rem;
  }
  .site-nav.is-open { display: block; }
  .site-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
}

/* Layout helpers */
.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section {
  padding: 4.5rem 0;
}

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

.eyebrow {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal-mid);
  margin: 0 0 0.75rem;
}

.lead {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 38rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.75rem 1.35rem;
  border-radius: var(--radius);
  border: 2px solid transparent;
  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(--teal);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--ink);
  color: var(--white);
}

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

.btn-ghost:hover {
  background: var(--teal);
  color: var(--white);
}

.btn-sand {
  background: var(--sand);
  color: var(--ink);
}

.btn-sand:hover {
  background: var(--sand-deep);
  color: var(--white);
}

/* Hero — full-bleed visual plane */
.hero-bleed {
  position: relative;
  min-height: min(88vh, 720px);
  display: grid;
  align-items: end;
  overflow: hidden;
  color: var(--white);
}

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

.hero-bleed__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: hero-drift 28s ease-in-out infinite alternate;
}

.hero-bleed__veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(105deg, rgba(11, 36, 38, 0.92) 0%, rgba(13, 59, 62, 0.72) 48%, rgba(11, 36, 38, 0.45) 100%),
    linear-gradient(to top, rgba(11, 36, 38, 0.85), transparent 45%);
  z-index: 1;
}

.hero-bleed__content {
  position: relative;
  z-index: 2;
  max-width: var(--max);
  width: 100%;
  margin: 0 auto;
  padding: 5rem 1.25rem 3.5rem;
}

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 8vw, 5.2rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 0.95;
  margin: 0 0 1.25rem;
  color: var(--white);
  animation: rise-in 0.9s ease both;
}

.hero-line {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.8vw, 1.85rem);
  font-weight: 600;
  max-width: 22ch;
  margin: 0 0 0.85rem;
  color: var(--mint-soft);
  animation: rise-in 1s ease 0.12s both;
}

.hero-support {
  font-family: var(--font-body);
  font-size: 1.1rem;
  max-width: 34rem;
  color: rgba(250, 252, 251, 0.88);
  margin: 0 0 1.75rem;
  animation: rise-in 1s ease 0.22s both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  animation: rise-in 1s ease 0.32s both;
}

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

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

@keyframes fade-up {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  animation: fade-up 0.7s ease both;
}

/* Split / band sections */
.band {
  background: var(--teal);
  color: var(--mint-soft);
  padding: 3.5rem 0;
}

.band h2 {
  color: var(--white);
  margin-top: 0;
}

.band p { color: rgba(250, 252, 251, 0.85); }

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

.proof-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2.1rem;
  color: var(--sand);
  letter-spacing: -0.03em;
}

.proof-item span {
  font-family: var(--font-ui);
  font-size: 0.9rem;
}

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

.grid-2 {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
  align-items: center;
}

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

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

@media (max-width: 800px) {
  .grid-2,
  .grid-2-equal,
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

.benefit {
  padding: 0;
  border: none;
  background: transparent;
}

.benefit h3 {
  margin: 0 0 0.5rem;
  font-size: 1.2rem;
}

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

.benefit-num {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--sand-deep);
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

/* Course / blog tiles — interaction containers */
.tile {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.tile:hover {
  border-color: var(--mint);
  box-shadow: var(--shadow);
  color: inherit;
}

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

.tile-body {
  padding: 1.25rem 1.35rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.tile-meta {
  font-family: var(--font-ui);
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

.tile h3 {
  margin: 0 0 0.5rem;
  font-size: 1.15rem;
}

.tile p {
  color: var(--muted);
  font-size: 0.98rem;
  margin-bottom: 0;
  flex: 1;
}

.tile-link {
  margin-top: 1rem;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--teal-mid);
}

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

.page-hero h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  margin: 0 0 0.75rem;
  max-width: 18ch;
}

.page-hero .lead {
  margin-bottom: 0;
}

.media-frame {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
}

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

/* Testimonials */
.quote-block {
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
}

.quote-block:first-child {
  border-top: none;
  padding-top: 0;
}

.quote-block blockquote {
  margin: 0 0 0.85rem;
  font-size: 1.15rem;
  quotes: none;
}

.quote-block footer {
  font-family: var(--font-ui);
  font-size: 0.88rem;
  color: var(--muted);
}

.rating {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--sand-deep);
  margin-bottom: 0.35rem;
}

.case-study {
  background: var(--white);
  border-left: 4px solid var(--sand);
  padding: 1.75rem 1.5rem;
  margin: 2rem 0;
}

.case-study h3 {
  margin-top: 0;
}

/* 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(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
}

.price-tier.is-featured {
  border-color: var(--teal-mid);
  box-shadow: var(--shadow);
  background:
    linear-gradient(180deg, rgba(126, 200, 192, 0.12), transparent 40%),
    var(--white);
}

.price-tier h2 {
  margin: 0 0 0.35rem;
  font-size: 1.35rem;
}

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

.price-amount span {
  font-size: 1rem;
  color: var(--muted);
  font-family: var(--font-ui);
  font-weight: 500;
}

.price-tier ul {
  margin: 0 0 1.5rem;
  padding-left: 1.1rem;
  color: var(--muted);
  flex: 1;
}

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

.price-note {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 1.5rem;
}

/* Forms */
.form {
  max-width: 36rem;
}

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

.form label {
  display: block;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.88rem;
  margin-bottom: 0.35rem;
}

.form input,
.form select,
.form textarea {
  width: 100%;
  font: inherit;
  font-family: var(--font-ui);
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--ink);
}

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

.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: 2px solid var(--mint);
  outline-offset: 1px;
  border-color: var(--teal-mid);
}

.field-error {
  display: none;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--danger);
  margin-top: 0.3rem;
}

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

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

.form-status.is-success {
  display: block;
  background: rgba(31, 107, 74, 0.12);
  color: var(--ok);
}

.form-status.is-error {
  display: block;
  background: rgba(166, 61, 47, 0.12);
  color: var(--danger);
}

.contact-aside {
  background: var(--teal);
  color: var(--white);
  padding: 1.75rem;
  border-radius: var(--radius);
}

.contact-aside h2 {
  color: var(--white);
  margin-top: 0;
  font-size: 1.2rem;
}

.contact-aside p,
.contact-aside a {
  color: rgba(250, 252, 251, 0.9);
  font-family: var(--font-ui);
  font-size: 0.95rem;
}

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

.faq summary {
  font-family: var(--font-display);
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

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

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

.faq details p {
  margin: 0.75rem 0 0;
  color: var(--muted);
}

/* Legal */
.legal {
  max-width: 44rem;
}

.legal h2 {
  margin-top: 2.25rem;
  font-size: 1.35rem;
}

.cookie-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--font-ui);
  font-size: 0.88rem;
  margin: 1.25rem 0;
}

.cookie-table th,
.cookie-table td {
  border: 1px solid var(--line);
  padding: 0.65rem 0.75rem;
  text-align: left;
  vertical-align: top;
}

.cookie-table th {
  background: rgba(13, 59, 62, 0.06);
}

/* Module list */
.modules {
  list-style: none;
  padding: 0;
  margin: 0;
}

.modules li {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 0.75rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}

.modules .mod-n {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--sand-deep);
}

/* Instructor */
.instructor {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1.25rem;
  align-items: start;
}

.instructor img {
  width: 120px;
  height: 120px;
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid var(--mint);
}

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

/* Cookie banner */
.cookie-banner {
  position: fixed;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 200;
  max-width: 420px;
  margin-left: auto;
  background: var(--ink);
  color: var(--fog);
  padding: 1.25rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  font-family: var(--font-ui);
  font-size: 0.9rem;
  animation: rise-in 0.45s ease both;
}

.cookie-banner p {
  margin: 0 0 1rem;
  color: rgba(220, 232, 230, 0.92);
}

.cookie-banner a {
  color: var(--mint);
}

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

.cookie-actions button {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.88rem;
  padding: 0.55rem 1rem;
  border-radius: var(--radius);
  cursor: pointer;
  border: none;
}

.cookie-accept {
  background: var(--mint);
  color: var(--ink);
}

.cookie-reject {
  background: transparent;
  color: var(--fog);
  border: 1px solid rgba(220, 232, 230, 0.35) !important;
}

.inline-error {
  font-family: var(--font-ui);
  color: var(--danger);
  background: rgba(166, 61, 47, 0.1);
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  margin: 0.5rem 0;
}

/* 404 */
.error-page {
  min-height: 60vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 3rem 1.25rem;
}

.error-page h1 {
  font-size: clamp(3rem, 10vw, 5.5rem);
  margin: 0;
  color: var(--teal);
}

/* Footer */
.site-footer {
  background: var(--ink);
  color: rgba(220, 232, 230, 0.85);
  margin-top: 4rem;
  font-family: var(--font-ui);
  font-size: 0.9rem;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 3rem 1.25rem 2rem;
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 0.8fr) 1.2fr;
  gap: 1.75rem;
}

.footer-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--white);
  margin: 0 0 0.5rem;
}

.footer-tag {
  color: rgba(220, 232, 230, 0.7);
  font-size: 0.88rem;
  line-height: 1.5;
}

.site-footer h2 {
  font-family: var(--font-ui);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--mint);
  margin: 0 0 0.75rem;
}

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

.site-footer li { margin-bottom: 0.4rem; }

.site-footer a {
  color: rgba(220, 232, 230, 0.85);
  text-decoration: none;
}

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

.footer-contact p {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  line-height: 1.5;
}

.footer-base {
  border-top: 1px solid rgba(220, 232, 230, 0.12);
  padding: 1rem 1.25rem;
  text-align: center;
  font-size: 0.82rem;
  color: rgba(220, 232, 230, 0.55);
}

.footer-base p { margin: 0; }

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

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

/* Article prose */
.article-body {
  max-width: 42rem;
}

.article-body h2 {
  margin-top: 2rem;
  font-size: 1.4rem;
}

.article-cover {
  margin: 1.5rem 0 2rem;
  border-radius: var(--radius);
  overflow: hidden;
}

.article-cover img {
  width: 100%;
  aspect-ratio: 21 / 9;
  object-fit: cover;
}

.article-meta {
  font-family: var(--font-ui);
  font-size: 0.88rem;
  color: var(--muted);
}

.list-check {
  padding-left: 1.2rem;
  color: var(--muted);
}

.list-check li { margin-bottom: 0.45rem; }

.cta-strip {
  margin: 3rem 0 0;
  padding: 2.5rem;
  background:
    linear-gradient(120deg, var(--teal) 0%, var(--ink-soft) 100%);
  color: var(--white);
  border-radius: var(--radius);
  text-align: center;
}

.cta-strip h2 {
  color: var(--white);
  margin: 0 0 0.5rem;
}

.cta-strip p {
  color: rgba(250, 252, 251, 0.85);
  max-width: 32rem;
  margin: 0 auto 1.25rem;
}