/* Machinelearnapps — alpine clarity theme */
:root {
  --color-bg: #e6ebe7;
  --color-bg-deep: #d5ddd7;
  --color-surface: #f5f7f5;
  --color-ink: #1a2e28;
  --color-ink-soft: #3d524a;
  --color-muted: #5f7269;
  --color-accent: #2f6b5a;
  --color-accent-hover: #245446;
  --color-line: #b8c4bc;
  --color-warm: #8a7340;
  --color-error: #8b2e2e;
  --color-success: #1f5c45;
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Atkinson Hyperlegible", "Segoe UI", sans-serif;
  --space-xs: 0.35rem;
  --space-sm: 0.75rem;
  --space-md: 1.25rem;
  --space-lg: 2rem;
  --space-xl: 3.5rem;
  --space-2xl: 5.5rem;
  --radius: 2px;
  --shadow-soft: 0 12px 40px rgba(26, 46, 40, 0.08);
  --header-h: 4.25rem;
  --max: 72rem;
  --measure: 40rem;
}

*,
*::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(--color-ink);
  background:
    radial-gradient(ellipse 80% 50% at 10% -10%, rgba(47, 107, 90, 0.12), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 0%, rgba(138, 115, 64, 0.1), transparent 50%),
    linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-deep) 100%);
  background-attachment: fixed;
  min-height: 100vh;
}

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

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

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

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 650;
  line-height: 1.2;
  color: var(--color-ink);
  margin: 0 0 var(--space-md);
}

h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2.25rem);
}

h3 {
  font-size: 1.25rem;
}

p {
  margin: 0 0 var(--space-md);
}

ul,
ol {
  margin: 0 0 var(--space-md);
  padding-left: 1.25rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

.section {
  padding: var(--space-xl) 0;
}

.section--tight {
  padding: var(--space-lg) 0;
}

.section__eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-warm);
  margin-bottom: var(--space-sm);
  font-weight: 700;
}

.section__lede {
  max-width: var(--measure);
  color: var(--color-ink-soft);
  font-size: 1.125rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(245, 247, 245, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-line);
}

.site-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: var(--space-md);
}

.site-header__brand {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 650;
  color: var(--color-ink);
  text-decoration: none;
  letter-spacing: -0.01em;
}

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

.site-header__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: transparent;
  border: 1px solid var(--color-line);
  padding: 0.55rem 0.6rem;
  cursor: pointer;
  border-radius: var(--radius);
}

.site-header__toggle-bar {
  display: block;
  width: 1.35rem;
  height: 2px;
  background: var(--color-ink);
}

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

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

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

.site-nav__cta {
  display: inline-block;
  padding: 0.45rem 0.9rem;
  background: var(--color-accent);
  color: #f5f7f5 !important;
  border-radius: var(--radius);
  transition: background 0.2s ease, transform 0.2s ease;
}

.site-nav__cta:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
}

@media (max-width: 920px) {
  .site-header__toggle {
    display: flex;
  }

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

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

  .site-nav__list {
    flex-direction: column;
    align-items: flex-start;
  }
}

@keyframes navDrop {
  from {
    opacity: 0;
    transform: translateY(-0.4rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Buttons */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  padding: 0.7rem 1.25rem;
  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--primary {
  background: var(--color-accent);
  color: #f5f7f5;
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  color: #f5f7f5;
  transform: translateY(-1px);
}

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

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

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

/* Hero variants */
.hero {
  position: relative;
  min-height: calc(100vh - var(--header-h));
  display: grid;
  align-items: end;
  color: #f5f7f5;
  overflow: hidden;
}

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

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

.hero__veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(105deg, rgba(26, 46, 40, 0.88) 0%, rgba(26, 46, 40, 0.55) 48%, rgba(26, 46, 40, 0.25) 100%),
    linear-gradient(0deg, rgba(26, 46, 40, 0.7) 0%, transparent 45%);
}

.hero__content {
  position: relative;
  z-index: 1;
  width: min(100% - 2rem, var(--max));
  margin: 0 auto;
  padding: var(--space-2xl) 0 var(--space-xl);
  max-width: 38rem;
  animation: riseIn 0.7s ease both;
}

.hero__brand {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 4.5rem);
  font-weight: 650;
  margin: 0 0 var(--space-md);
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.hero__headline {
  font-family: var(--font-body);
  font-size: clamp(1.15rem, 2.2vw, 1.35rem);
  font-weight: 400;
  line-height: 1.45;
  margin: 0 0 var(--space-sm);
  color: #e6ebe7;
}

.hero__support {
  margin: 0;
  color: #c5d0ca;
  max-width: 32rem;
}

.hero--page {
  min-height: 42vh;
  align-items: center;
}

.hero--page .hero__content {
  max-width: 44rem;
  padding-top: var(--space-xl);
}

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

.reveal {
  opacity: 0;
  transform: translateY(0.75rem);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

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

/* Offer strips / listings — avoid card chrome where possible */
.offer-list {
  display: grid;
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}

.offer-item {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.4fr);
  gap: var(--space-lg);
  align-items: center;
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--color-line);
}

.offer-item:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.offer-item__img {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border-radius: var(--radius);
}

.offer-item__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.offer-item:hover .offer-item__img img {
  transform: scale(1.03);
}

.offer-item__meta {
  font-size: 0.85rem;
  color: var(--color-warm);
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.offer-item h3 {
  margin-bottom: var(--space-sm);
}

.offer-item h3 a {
  color: inherit;
  text-decoration: none;
}

.offer-item h3 a:hover {
  color: var(--color-accent);
}

@media (max-width: 760px) {
  .offer-item {
    grid-template-columns: 1fr;
  }
}

.flagship-band {
  background: var(--color-ink);
  color: #e6ebe7;
  padding: var(--space-xl) 0;
}

.flagship-band h2,
.flagship-band h3 {
  color: #f5f7f5;
}

.flagship-band p {
  color: #c5d0ca;
}

.flagship-band__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.flagship-band__img {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-radius: var(--radius);
}

.flagship-band__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

.quote-block {
  border-left: 3px solid var(--color-accent);
  padding-left: var(--space-md);
  margin: var(--space-lg) 0;
}

.quote-block p {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  line-height: 1.4;
  color: var(--color-ink);
}

.quote-block cite {
  display: block;
  font-style: normal;
  font-size: 0.95rem;
  color: var(--color-muted);
  margin-top: var(--space-sm);
}

.story-grid {
  display: grid;
  gap: var(--space-lg);
}

.story-item + .story-item {
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-line);
}

.prose {
  max-width: 42rem;
}

.prose h2 {
  margin-top: var(--space-xl);
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

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

.steps {
  counter-reset: step;
  list-style: none;
  padding: 0;
  margin: var(--space-lg) 0 0;
}

.steps li {
  position: relative;
  padding-left: 3rem;
  margin-bottom: var(--space-md);
  counter-increment: step;
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--color-accent);
  color: #f5f7f5;
  font-size: 0.9rem;
  font-weight: 700;
  display: grid;
  place-items: center;
}

.rate-table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-lg) 0;
}

.rate-table th,
.rate-table td {
  text-align: left;
  padding: 0.85rem 0.5rem;
  border-bottom: 1px solid var(--color-line);
  vertical-align: top;
}

.rate-table th {
  font-family: var(--font-display);
  font-weight: 650;
}

.detail-hero-img {
  width: 100%;
  max-height: 28rem;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: var(--space-lg);
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  color: var(--color-muted);
  font-size: 0.95rem;
  margin-bottom: var(--space-lg);
}

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

.form__group {
  margin-bottom: var(--space-md);
}

.form__label {
  display: block;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.form__hint {
  display: block;
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-bottom: var(--space-xs);
}

.form__input,
.form__select,
.form__textarea {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-surface);
  font: inherit;
  color: var(--color-ink);
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
}

.form__input.is-invalid,
.form__select.is-invalid,
.form__textarea.is-invalid {
  border-color: var(--color-error);
}

.form__error {
  color: var(--color-error);
  font-size: 0.875rem;
  margin-top: var(--space-xs);
  display: none;
}

.form__error.is-visible {
  display: block;
}

.form__status {
  margin-top: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius);
  display: none;
}

.form__status.is-success {
  display: block;
  background: rgba(31, 92, 69, 0.12);
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

.form__status.is-error {
  display: block;
  background: rgba(139, 46, 46, 0.1);
  color: var(--color-error);
  border: 1px solid var(--color-error);
}

.contact-aside {
  background: var(--color-surface);
  padding: var(--space-lg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.contact-aside dt {
  font-weight: 700;
  margin-top: var(--space-md);
}

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

.contact-aside dd {
  margin: var(--space-xs) 0 0;
  color: var(--color-ink-soft);
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: var(--color-ink);
  color: #e6ebe7;
  padding: var(--space-md);
  box-shadow: var(--shadow-soft);
  animation: riseIn 0.35s ease;
}

.cookie-banner[hidden] {
  display: none !important;
}

.cookie-banner__inner {
  width: min(100% - 1rem, var(--max));
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
  justify-content: space-between;
}

.cookie-banner__text {
  margin: 0;
  flex: 1 1 18rem;
  color: #c5d0ca;
}

.cookie-banner__text a {
  color: #f5f7f5;
}

.cookie-banner__actions {
  display: flex;
  gap: var(--space-sm);
}

.cookie-banner .btn--ghost {
  color: #e6ebe7;
  border-color: #5f7269;
}

.cookie-banner .btn--ghost:hover {
  border-color: #e6ebe7;
  color: #f5f7f5;
}

/* Footer */
.site-footer {
  margin-top: var(--space-2xl);
  padding: var(--space-xl) 0 var(--space-lg);
  background: var(--color-ink);
  color: #c5d0ca;
}

.site-footer__inner {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-lg);
}

.site-footer__name {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: #f5f7f5;
  margin-bottom: var(--space-sm);
}

.site-footer__label {
  font-weight: 700;
  color: #f5f7f5;
  margin-bottom: var(--space-xs);
}

.site-footer a {
  color: #e6ebe7;
}

.site-footer__nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.site-footer__copy {
  width: min(100% - 2rem, var(--max));
  margin: var(--space-lg) auto 0;
  padding-top: var(--space-md);
  border-top: 1px solid #3d524a;
  font-size: 0.9rem;
}

@media (max-width: 760px) {
  .site-footer__inner {
    grid-template-columns: 1fr;
  }
}

/* Blog */
.post-list {
  display: grid;
  gap: var(--space-xl);
}

.post-teaser {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.4fr);
  gap: var(--space-lg);
  align-items: start;
}

.post-teaser__img {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: var(--radius);
}

.post-teaser__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.post-teaser time {
  color: var(--color-muted);
  font-size: 0.9rem;
}

@media (max-width: 700px) {
  .post-teaser {
    grid-template-columns: 1fr;
  }
}

.legal-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  margin: var(--space-md) 0;
}

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

.page-404 {
  min-height: 60vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: var(--space-xl) 1rem;
}

.path-timeline {
  list-style: none;
  padding: 0;
  margin: var(--space-lg) 0 0;
  border-left: 2px solid var(--color-accent);
}

.path-timeline li {
  padding: 0 0 var(--space-lg) var(--space-lg);
  position: relative;
}

.path-timeline li::before {
  content: "";
  position: absolute;
  left: -0.4rem;
  top: 0.35rem;
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 50%;
  background: var(--color-warm);
  border: 2px solid var(--color-bg);
}

.path-timeline h3 {
  margin-bottom: var(--space-xs);
}