/* Data Mind Cloud — Ledger Mist theme */
:root {
  --ink: #1a2b3a;
  --ink-soft: #3d5163;
  --mist: #eef3f2;
  --paper: #f6f8f7;
  --foam: #ffffff;
  --teal: #2a9d8f;
  --teal-deep: #1f756b;
  --sage: #7ba3a0;
  --sand: #d4c4a8;
  --line: rgba(26, 43, 58, 0.12);
  --shadow: 0 18px 40px rgba(26, 43, 58, 0.08);
  --radius: 6px;
  --font-display: "Sora", sans-serif;
  --font-body: "Source Serif 4", Georgia, serif;
  --max: 1120px;
  --header-h: 72px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::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 500px at 10% -10%, rgba(42, 157, 143, 0.12), transparent 60%),
    radial-gradient(900px 420px at 100% 0%, rgba(212, 196, 168, 0.18), transparent 55%),
    linear-gradient(180deg, var(--mist) 0%, var(--paper) 40%, var(--mist) 100%);
  min-height: 100vh;
}

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

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

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 0.6em;
}

p {
  margin: 0 0 1em;
}

ul, ol {
  margin: 0 0 1em;
  padding-left: 1.2em;
}

.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: -3rem;
  background: var(--ink);
  color: var(--foam);
  padding: 0.6rem 1rem;
  z-index: 1000;
  text-decoration: none;
}

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

.wrap {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(246, 248, 247, 0.88);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
  min-height: var(--header-h);
  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: 0.45rem;
  background:
    radial-gradient(circle at 50% 70%, var(--foam) 0 18%, transparent 19%),
    linear-gradient(160deg, var(--ink) 0%, #24384a 100%);
  box-shadow: inset 0 0 0 2px rgba(42, 157, 143, 0.55);
  position: relative;
}

.brand-mark::after {
  content: "";
  position: absolute;
  inset: 28% 18% auto;
  height: 2px;
  background: var(--teal);
  border-radius: 2px;
}

.brand-text {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.03em;
}

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

.site-nav a {
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--ink-soft);
}

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

.nav-cta {
  background: var(--ink);
  color: var(--foam) !important;
  padding: 0.55rem 0.95rem;
  border-radius: 999px;
}

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

.nav-toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--line);
  background: var(--foam);
  border-radius: var(--radius);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

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

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

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

@media (max-width: 880px) {
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    background: var(--foam);
    border-bottom: 1px solid var(--line);
    padding: 0.75rem 1rem 1.25rem;
    display: none;
  }
  .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;
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  transition: transform 0.25s var(--ease), background 0.25s ease, color 0.25s ease;
}

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

.btn-primary {
  background: var(--teal);
  color: var(--foam);
}

.btn-primary:hover {
  background: var(--teal-deep);
  color: var(--foam);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  box-shadow: inset 0 0 0 1.5px var(--ink);
}

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

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

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

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

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgba(26, 43, 58, 0.88) 18%, rgba(26, 43, 58, 0.45) 58%, rgba(26, 43, 58, 0.25) 100%),
    linear-gradient(0deg, rgba(26, 43, 58, 0.55), transparent 45%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  padding: 4.5rem 0 4rem;
}

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 7vw, 5.2rem);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 0.95;
  margin: 0 0 1.1rem;
  animation: riseIn 0.9s var(--ease) both;
}

.hero-line {
  max-width: 28rem;
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: 1.6rem;
  animation: riseIn 1s 0.12s var(--ease) both;
}

.hero-actions {
  animation: riseIn 1s 0.22s var(--ease) both;
}

.hero-actions .btn-ghost {
  color: var(--foam);
  box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, 0.75);
  margin-left: 0.65rem;
}

.hero-actions .btn-ghost:hover {
  background: var(--foam);
  color: var(--ink);
}

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

@keyframes heroDrift {
  from { transform: scale(1.04) translate3d(0, 0, 0); }
  to { transform: scale(1.1) translate3d(-1.5%, -1%, 0); }
}

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

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

.section-title {
  font-size: clamp(1.7rem, 3vw, 2.35rem);
  max-width: 18ch;
}

.section-lead {
  max-width: 42rem;
  color: var(--ink-soft);
  font-size: 1.08rem;
}

.eyebrow {
  font-family: var(--font-display);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal-deep);
  margin-bottom: 0.75rem;
  font-weight: 600;
}

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

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

.proof-item strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  letter-spacing: -0.03em;
  color: var(--ink);
}

.proof-item span {
  color: var(--ink-soft);
  font-size: 0.98rem;
}

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

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

@media (max-width: 840px) {
  .split { grid-template-columns: 1fr; }
}

.benefit-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 0;
  display: grid;
  gap: 1.15rem;
}

.benefit-list li {
  padding-left: 1.35rem;
  border-left: 3px solid var(--teal);
}

.benefit-list h3 {
  font-size: 1.05rem;
  margin-bottom: 0.25rem;
}

.benefit-list p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.98rem;
}

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

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

.price-grid {
  grid-template-columns: repeat(3, 1fr);
  align-items: stretch;
}

.review-grid {
  grid-template-columns: 1.2fr 1fr;
  gap: 1.25rem;
}

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

.tile {
  display: block;
  text-decoration: none;
  color: inherit;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform 0.3s var(--ease), box-shadow 0.3s ease;
}

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

.tile-media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.tile-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}

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

.tile-body {
  padding: 1.25rem 1.3rem 1.45rem;
}

.tile-body h3 {
  font-size: 1.15rem;
  margin-bottom: 0.4rem;
}

.tile-body p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.96rem;
}

.meta {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--sage);
  margin-bottom: 0.5rem;
}

/* Quote / reviews */
.quote-panel {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.92);
  padding: 2rem;
  position: relative;
  overflow: hidden;
}

.quote-panel::before {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  right: -40px;
  top: -50px;
  border-radius: 50%;
  background: rgba(42, 157, 143, 0.25);
}

.quote-panel p {
  position: relative;
  font-size: 1.15rem;
  margin-bottom: 1.2rem;
}

.quote-panel cite {
  position: relative;
  font-style: normal;
  font-family: var(--font-display);
  font-size: 0.88rem;
  color: var(--sand);
}

.quote-soft {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--line);
  padding: 1.5rem 1.6rem;
}

.quote-soft p { margin-bottom: 0.85rem; }
.quote-soft footer {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.stars {
  color: var(--teal-deep);
  letter-spacing: 0.08em;
  font-size: 0.85rem;
  margin-bottom: 0.4rem;
  font-family: var(--font-display);
}

/* Pricing */
.price-card {
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid var(--line);
  padding: 1.75rem 1.6rem 1.9rem;
  display: flex;
  flex-direction: column;
}

.price-card.featured {
  background: var(--ink);
  color: var(--foam);
  border-color: var(--ink);
}

.price-card.featured .price-note,
.price-card.featured li {
  color: rgba(255, 255, 255, 0.78);
}

.price-name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
}

.price-amount {
  font-family: var(--font-display);
  font-size: 2.2rem;
  letter-spacing: -0.03em;
  margin-bottom: 0.35rem;
}

.price-note {
  color: var(--ink-soft);
  font-size: 0.95rem;
  margin-bottom: 1.2rem;
}

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

.price-card .btn { align-self: flex-start; }

.price-card.featured .btn-primary {
  background: var(--teal);
}

/* Forms */
.form-panel {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
  padding: 1.75rem;
}

.form-grid {
  display: grid;
  gap: 1rem;
}

.form-row {
  display: grid;
  gap: 0.35rem;
}

.form-row label {
  font-family: var(--font-display);
  font-size: 0.86rem;
  font-weight: 600;
}

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

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

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: 2px solid rgba(42, 157, 143, 0.45);
  outline-offset: 1px;
  border-color: var(--teal);
}

.field-error {
  color: #9b2c2c;
  font-size: 0.86rem;
  min-height: 1.1em;
}

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

.form-status.is-success {
  display: block;
  background: rgba(42, 157, 143, 0.15);
  color: var(--teal-deep);
}

.form-status.is-error {
  display: block;
  background: rgba(155, 44, 44, 0.1);
  color: #9b2c2c;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2rem;
}

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

.contact-aside {
  background: var(--ink);
  color: rgba(255, 255, 255, 0.9);
  padding: 1.75rem;
}

.contact-aside a { color: var(--sand); }
.contact-aside h2 { color: var(--foam); font-size: 1.2rem; }
.contact-aside address {
  font-style: normal;
  margin-bottom: 1rem;
}

/* Page heroes (interior) */
.page-hero {
  padding: 3.5rem 0 2rem;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(120deg, rgba(42, 157, 143, 0.08), transparent 50%),
    rgba(255, 255, 255, 0.35);
}

.page-hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.1rem);
  max-width: 16ch;
}

.page-hero p {
  max-width: 40rem;
  color: var(--ink-soft);
  margin: 0;
}

.prose {
  max-width: 42rem;
}

.prose h2 {
  margin-top: 2rem;
  font-size: 1.45rem;
}

.prose h3 {
  margin-top: 1.5rem;
  font-size: 1.15rem;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  margin: 1.25rem 0;
}

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

.prose th {
  background: rgba(42, 157, 143, 0.08);
  font-family: var(--font-display);
  font-size: 0.82rem;
}

.module-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
  display: grid;
  gap: 0.85rem;
}

.module-list li {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--line);
  padding: 1rem 1.15rem;
}

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

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

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

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

.instructor {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1.25rem;
  align-items: center;
  margin: 1.5rem 0;
}

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

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

.cta-band {
  background: linear-gradient(135deg, var(--ink), #24384a 55%, #1f756b);
  color: var(--foam);
  padding: 3.5rem 0;
  margin-top: 1rem;
}

.cta-band h2 { color: var(--foam); max-width: 18ch; }
.cta-band p { color: rgba(255, 255, 255, 0.82); max-width: 36rem; }
.cta-band .btn-primary { background: var(--teal); }

/* Footer */
.site-footer {
  background: #152331;
  color: rgba(255, 255, 255, 0.78);
  padding: 3.5rem 0 2rem;
  margin-top: 0;
}

.footer-inner {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--foam);
  margin-bottom: 0.6rem;
}

.footer-tag {
  max-width: 28rem;
  font-size: 0.95rem;
}

.footer-cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin: 0 0 2.5rem;
}

@media (min-width: 900px) {
  .footer-cols {
    grid-template-columns: 1.5fr repeat(3, 0.85fr) 1.35fr;
  }
}

.footer-heading {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sand);
  margin-bottom: 0.85rem;
}

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

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

.site-footer a {
  color: rgba(255, 255, 255, 0.82);
  text-decoration: none;
}

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

.footer-address {
  font-style: normal;
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.footer-copy {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 1.25rem;
  font-size: 0.88rem;
  margin: 0;
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  z-index: 200;
  max-width: 520px;
  margin-inline: auto;
  background: var(--foam);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 1.25rem 1.35rem;
  display: none;
}

.cookie-banner.is-visible { display: block; animation: riseIn 0.45s var(--ease); }

.cookie-banner p {
  font-size: 0.95rem;
  color: var(--ink-soft);
  margin-bottom: 1rem;
}

.cookie-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.cookie-actions .btn {
  padding: 0.65rem 1.1rem;
  font-size: 0.85rem;
}

.inline-error {
  margin: 1rem auto;
  width: min(100% - 2rem, var(--max));
  padding: 0.85rem 1rem;
  background: rgba(155, 44, 44, 0.1);
  color: #9b2c2c;
  border-radius: var(--radius);
}

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

.error-page h1 {
  font-size: clamp(3rem, 10vw, 6rem);
  letter-spacing: -0.05em;
  margin-bottom: 0.2rem;
}

/* Case study */
.case-study {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--line);
  padding: 1.75rem;
  margin-bottom: 1.5rem;
}

.case-study h3 { margin-bottom: 0.5rem; }

.media-bleed {
  margin: 1.5rem 0;
  aspect-ratio: 21 / 9;
  overflow: hidden;
}

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

.article-hero-img {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  margin: 1.5rem 0 2rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.tag-list li {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  padding: 0.35rem 0.7rem;
  background: rgba(42, 157, 143, 0.12);
  color: var(--teal-deep);
}