/* Intelligentwebapi — soft neutrals, large type, generous space */
:root {
  --bg: #f7f8f9;
  --surface: #ffffff;
  --ink: #1c1f24;
  --muted: #5c6370;
  --line: #e3e6eb;
  --accent: #3d5a4c;
  --accent-soft: #e8efe9;
  --accent-hover: #2f4639;
  --danger: #8b3a3a;
  --ok: #2f5d45;
  --shadow: 0 1px 2px rgba(28, 31, 36, 0.04), 0 12px 32px rgba(28, 31, 36, 0.06);
  --radius: 4px;
  --font-display: "Fraunces", "Georgia", serif;
  --font-body: "Figtree", "Segoe 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: var(--bg);
  background-image:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(61, 90, 76, 0.06), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(28, 31, 36, 0.03), transparent 50%);
  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);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 0.6em;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 3.75rem);
}

h2 {
  font-size: clamp(1.75rem, 3vw, 2.4rem);
}

h3 {
  font-size: 1.35rem;
}

p {
  margin: 0 0 1em;
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--ink);
  color: #fff;
  padding: 0.75rem 1rem;
  z-index: 1000;
}

.skip-link:focus {
  left: 0.5rem;
  top: 0.5rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 248, 249, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.5rem;
  min-height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 560;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.03em;
}

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

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.15rem 1.25rem;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
}

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

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.45rem 0.7rem;
  cursor: pointer;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  color: var(--ink);
}

.nav-toggle-bars {
  width: 1.1rem;
  height: 0.75rem;
  border-top: 1.5px solid var(--ink);
  border-bottom: 1.5px solid var(--ink);
  position: relative;
}

.nav-toggle-bars::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1.5px;
  background: var(--ink);
  transform: translateY(-50%);
}

@media (max-width: 860px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: var(--header-h);
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    padding: 1rem 1.5rem 1.25rem;
  }

  .site-nav.is-open {
    display: block;
    animation: fadeSlide 0.28s ease;
  }

  .site-nav ul {
    flex-direction: column;
    gap: 0.85rem;
  }
}

@keyframes fadeSlide {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes riseIn {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes softPulse {
  0%,
  100% {
    opacity: 0.55;
  }
  50% {
    opacity: 1;
  }
}

/* Layout */
.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 4.5rem 0;
}

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

.section-label {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.75rem;
  font-weight: 600;
}

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

.muted {
  color: var(--muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.85rem 1.4rem;
  font-family: var(--font-body);
  font-size: 0.98rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 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(--accent);
  color: var(--accent);
}

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

/* Hero — full-bleed */
.hero {
  position: relative;
  min-height: min(88vh, 720px);
  display: flex;
  align-items: flex-end;
  color: #fff;
  overflow: hidden;
}

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

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: heroZoom 18s ease-out forwards;
}

@keyframes heroZoom {
  from {
    transform: scale(1.06);
  }
  to {
    transform: scale(1);
  }
}

.hero-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(105deg, rgba(20, 24, 22, 0.82) 0%, rgba(20, 24, 22, 0.55) 48%, rgba(20, 24, 22, 0.25) 100%),
    linear-gradient(to top, rgba(20, 24, 22, 0.75), transparent 45%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  padding: 5rem 0 3.5rem;
  animation: riseIn 0.7s ease both;
}

.hero-brand {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 520;
  letter-spacing: -0.03em;
  margin: 0 0 0.35em;
  line-height: 1.05;
}

.hero-line {
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  max-width: 28rem;
  margin: 0 0 0.35em;
  font-weight: 500;
}

.hero-support {
  max-width: 28rem;
  color: rgba(255, 255, 255, 0.82);
  margin: 0;
  font-size: 1.05rem;
}

.hero .btn-primary {
  margin-top: 1.75rem;
}

/* Split / editorial blocks */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

@media (max-width: 800px) {
  .split {
    grid-template-columns: 1fr;
    gap: 1.75rem;
  }
}

.bleed-image {
  margin: 0 -1.5rem;
}

@media (min-width: 801px) {
  .bleed-image {
    margin: 0;
  }
}

.bleed-image img {
  width: 100%;
  height: clamp(240px, 40vw, 420px);
  object-fit: cover;
}

/* Feature list — not cards */
.feature-list {
  list-style: none;
  padding: 0;
  margin: 2rem 0 0;
  display: grid;
  gap: 1.75rem;
}

.feature-list li {
  padding-top: 1.75rem;
  border-top: 1px solid var(--line);
  animation: riseIn 0.55s ease both;
}

.feature-list li:nth-child(2) {
  animation-delay: 0.08s;
}

.feature-list li:nth-child(3) {
  animation-delay: 0.16s;
}

.feature-list h3 {
  margin-bottom: 0.35em;
}

.feature-list p {
  margin: 0;
  color: var(--muted);
  max-width: 36rem;
}

/* Course / blog grids — interaction containers */
.item-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none;
  color: inherit;
}

a.item:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow);
  color: inherit;
}

.item-media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--accent-soft);
}

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

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

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

.item-body h3 {
  font-size: 1.2rem;
  margin-bottom: 0.4em;
}

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

.item-meta {
  margin-top: 1rem;
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
}

/* Stats strip */
.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  padding: 2.5rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

@media (max-width: 640px) {
  .stats {
    grid-template-columns: 1fr;
  }
}

.stat strong {
  display: block;
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--accent);
}

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

/* Quotes */
.quote-stack {
  display: grid;
  gap: 2rem;
  margin-top: 2rem;
}

.quote {
  padding: 0;
  margin: 0;
  border: none;
}

.quote p {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.2vw, 1.55rem);
  line-height: 1.4;
  margin-bottom: 0.75rem;
}

.quote footer {
  color: var(--muted);
  font-size: 0.95rem;
}

/* Pricing */
.price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 2.5rem;
}

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

.price-tier {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
}

.price-tier.featured {
  border-color: var(--accent);
  background: linear-gradient(180deg, var(--accent-soft) 0%, var(--surface) 42%);
}

.price-tier h3 {
  margin-bottom: 0.25em;
}

.price-amount {
  font-family: var(--font-display);
  font-size: 2.5rem;
  margin: 0.5rem 0 0.25rem;
}

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

.price-tier ul {
  margin: 1.25rem 0 1.5rem;
  padding-left: 1.1em;
  color: var(--muted);
}

/* Forms */
.form {
  max-width: 34rem;
}

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

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.4rem;
  font-size: 0.95rem;
}

.form-group .hint {
  font-weight: 400;
  color: var(--muted);
  font-size: 0.85rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 1rem;
  background: var(--surface);
  color: var(--ink);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: 2px solid var(--accent-soft);
  border-color: var(--accent);
}

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

.field-error {
  color: var(--danger);
  font-size: 0.88rem;
  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(--danger);
}

.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(--ok);
}

.form-status.is-error {
  display: block;
  background: #f5e8e8;
  color: var(--danger);
}

.contact-panel {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
}

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

.contact-details {
  padding-top: 0.5rem;
}

.contact-details dt {
  font-weight: 600;
  margin-top: 1.25rem;
}

.contact-details dd {
  margin: 0.25rem 0 0;
  color: var(--muted);
}

/* Page header (inner) */
.page-hero {
  padding: 3.5rem 0 2rem;
}

.page-hero .lede {
  margin-top: 0.5rem;
}

.prose {
  max-width: 42rem;
}

.prose h2 {
  margin-top: 2.25rem;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  margin: 1.5rem 0;
}

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

.prose th {
  background: var(--accent-soft);
  font-weight: 600;
}

/* Course detail */
.module-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
}

.module-list li {
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line);
}

.module-list strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 0.25rem;
}

.instructor {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 1.5rem;
  align-items: start;
  margin: 2rem 0;
}

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

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

.faq summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

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

.faq summary::after {
  content: "+";
  float: right;
  color: var(--muted);
  font-weight: 400;
}

.faq details[open] summary::after {
  content: "–";
}

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

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: var(--surface);
  border-top: 1px solid var(--line);
  box-shadow: 0 -8px 28px rgba(28, 31, 36, 0.08);
  padding: 1.25rem 1.5rem;
  transform: translateY(110%);
  transition: transform 0.35s ease;
}

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

.cookie-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.5rem;
  justify-content: space-between;
}

.cookie-inner p {
  margin: 0;
  flex: 1 1 280px;
  color: var(--muted);
  font-size: 0.95rem;
}

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

.inline-error {
  background: #f5e8e8;
  color: var(--danger);
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  margin: 1rem 1.5rem;
}

/* Footer */
.site-footer {
  margin-top: 4rem;
  border-top: 1px solid var(--line);
  background: var(--surface);
  padding: 3.5rem 0 2rem;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.footer-logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin: 0 0 0.4rem;
}

.footer-tag {
  color: var(--muted);
  max-width: 22rem;
  margin: 0 0 2rem;
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-bottom: 2.5rem;
}

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

@media (max-width: 480px) {
  .footer-cols {
    grid-template-columns: 1fr;
  }
}

.footer-heading {
  font-family: var(--font-body);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.85rem;
}

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

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

.site-footer a {
  color: var(--ink);
  text-decoration: none;
}

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

.footer-address {
  color: var(--muted);
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
}

.footer-copy {
  color: var(--muted);
  font-size: 0.88rem;
  margin: 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--line);
}

/* 404 */
.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  padding: 4rem 0;
}

.rating {
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.04em;
}

.case-study {
  margin-top: 3rem;
  padding-top: 2.5rem;
  border-top: 1px solid var(--line);
}

.case-study + .case-study {
  margin-top: 2.5rem;
}

.avatar-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-top: 0.75rem;
}

.avatar-row img {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
}

.divider {
  height: 1px;
  background: var(--line);
  border: none;
  margin: 0;
}