/* MachineLearnNet — warm sand & deep forest editorial consultancy */

:root {
  --color-sand: #e8dfd0;
  --color-sand-deep: #d4c8b4;
  --color-paper: #f3eee4;
  --color-ink: #1c241e;
  --color-ink-soft: #3d4a40;
  --color-forest: #2f4a3a;
  --color-forest-deep: #1e3228;
  --color-moss: #5a7a62;
  --color-clay: #a67c5a;
  --color-border: #c9bda8;
  --color-error: #8b3a2f;
  --color-success: #2f4a3a;
  --font-display: "Libre Baskerville", Georgia, "Times New Roman", serif;
  --font-body: "Source Sans 3", "Segoe UI", sans-serif;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1.25rem;
  --space-lg: 2rem;
  --space-xl: 3.5rem;
  --space-2xl: 5.5rem;
  --radius: 2px;
  --max: 68rem;
  --narrow: 42rem;
  --header-h: 4.25rem;
  --ease: cubic-bezier(0.22, 0.61, 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: 1.65;
  color: var(--color-ink);
  background-color: var(--color-paper);
  background-image:
    radial-gradient(ellipse at 12% 8%, rgba(214, 200, 180, 0.55), transparent 48%),
    radial-gradient(ellipse at 88% 18%, rgba(90, 122, 98, 0.08), transparent 42%),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 3px,
      rgba(47, 74, 58, 0.015) 3px,
      rgba(47, 74, 58, 0.015) 4px
    );
  min-height: 100vh;
}

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

a {
  color: var(--color-forest);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  transition: color 0.25s var(--ease);
}

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

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-forest-deep);
  margin: 0 0 var(--space-md);
}

h1 {
  font-size: clamp(2rem, 4.5vw, 3.25rem);
}

h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
}

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);
  border: 0;
}

.eyebrow {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-moss);
  margin: 0 0 var(--space-sm);
}

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

/* Buttons */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.75rem 1.35rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.btn--primary {
  background: var(--color-forest);
  color: var(--color-sand);
  border-color: var(--color-forest);
}

.btn--primary:hover {
  background: var(--color-forest-deep);
  color: var(--color-sand);
  transform: translateY(-1px);
}

.btn--secondary {
  background: transparent;
  color: var(--color-forest);
  border-color: var(--color-border);
}

.btn--secondary:hover {
  border-color: var(--color-forest);
  color: var(--color-forest-deep);
}

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

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(243, 238, 228, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.85rem var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.site-header__brand {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-forest-deep);
  text-decoration: none;
  max-width: 14rem;
  line-height: 1.25;
}

.site-header__toggle {
  display: none;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--color-border);
  background: var(--color-sand);
  border-radius: var(--radius);
  cursor: pointer;
  position: relative;
}

.site-header__toggle span:not(.visually-hidden) {
  position: absolute;
  inset: 50% auto auto 50%;
  width: 1.1rem;
  height: 2px;
  background: var(--color-forest);
  transform: translate(-50%, -50%);
  box-shadow: 0 -5px 0 var(--color-forest), 0 5px 0 var(--color-forest);
}

.site-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 1.1rem;
}

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

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

.site-nav__cta {
  background: var(--color-forest);
  color: var(--color-sand) !important;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius);
}

.site-nav__cta:hover {
  background: var(--color-forest-deep);
}

@media (max-width: 900px) {
  .site-header__toggle {
    display: block;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-paper);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-md);
  }

  .site-nav.is-open {
    display: block;
    animation: fade-slide 0.3s var(--ease);
  }

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

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

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

/* Footer */
.site-footer {
  margin-top: var(--space-2xl);
  border-top: 1px solid var(--color-border);
  background: var(--color-sand);
  padding: var(--space-xl) var(--space-md) var(--space-lg);
}

.site-footer__inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  gap: var(--space-lg);
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
}

.site-footer__name {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-forest-deep);
  margin-bottom: var(--space-sm);
}

.site-footer__heading {
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.site-footer__address {
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 0.95rem;
}

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

.site-footer__nav li {
  margin-bottom: 0.35rem;
}

.site-footer__copy {
  max-width: var(--max);
  margin: var(--space-lg) auto 0;
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
  font-size: 0.85rem;
  color: var(--color-ink-soft);
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: var(--color-forest-deep);
  color: var(--color-sand);
  padding: var(--space-md);
  animation: fade-slide 0.4s var(--ease);
}

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

.cookie-banner__inner {
  max-width: var(--max);
  margin: 0 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;
  font-size: 0.95rem;
}

.cookie-banner__text a {
  color: var(--color-sand);
}

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

.cookie-banner .btn--secondary {
  color: var(--color-sand);
  border-color: var(--color-moss);
}

.cookie-banner .btn--primary {
  background: var(--color-sand);
  color: var(--color-forest-deep);
  border-color: var(--color-sand);
}

/* Layout helpers */
.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md);
}

.section--narrow {
  max-width: var(--narrow);
}

.page-hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md) var(--space-lg);
  animation: rise-in 0.7s var(--ease) both;
}

.page-hero--split {
  display: grid;
  gap: var(--space-lg);
  align-items: end;
}

@media (min-width: 800px) {
  .page-hero--split {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.page-hero__media img {
  width: 100%;
  height: clamp(16rem, 40vw, 24rem);
  object-fit: cover;
  border: 1px solid var(--color-border);
}

/* Home hero — full-bleed visual plane */
.home-hero {
  position: relative;
  min-height: min(92vh, 42rem);
  display: flex;
  align-items: flex-end;
  color: var(--color-sand);
  overflow: hidden;
}

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

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

.home-hero__veil {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(30, 50, 40, 0.35) 0%, rgba(30, 50, 40, 0.78) 70%, rgba(30, 50, 40, 0.92) 100%);
  z-index: 1;
}

.home-hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--max);
  width: 100%;
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-md) var(--space-xl);
  animation: rise-in 0.85s var(--ease) both;
}

.home-hero__brand {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  margin: 0 0 var(--space-md);
  color: var(--color-sand);
  max-width: 14ch;
}

.home-hero h1 {
  color: var(--color-sand);
  font-size: clamp(1.35rem, 2.8vw, 1.85rem);
  font-weight: 400;
  max-width: 28ch;
  margin-bottom: var(--space-sm);
}

.home-hero .lede {
  color: rgba(232, 223, 208, 0.9);
  margin-bottom: 0;
}

.home-hero .btn--primary {
  background: var(--color-sand);
  color: var(--color-forest-deep);
  border-color: var(--color-sand);
  margin-top: var(--space-lg);
}

.home-hero .btn--primary:hover {
  background: var(--color-paper);
}

/* Offer cards — bordered, understated */
.offer-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}

.offer-card {
  border: 1px solid var(--color-border);
  background: rgba(255, 252, 246, 0.55);
  padding: 0;
  display: flex;
  flex-direction: column;
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
  animation: rise-in 0.6s var(--ease) both;
}

.offer-card:nth-child(2) {
  animation-delay: 0.08s;
}

.offer-card:nth-child(3) {
  animation-delay: 0.16s;
}

.offer-card:nth-child(4) {
  animation-delay: 0.24s;
}

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

.offer-card__image {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
}

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

.offer-card__body {
  padding: var(--space-md);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.offer-card__body h3 {
  margin-bottom: var(--space-xs);
}

.offer-card__body p {
  flex: 1;
  color: var(--color-ink-soft);
  font-size: 0.98rem;
}

.offer-card__link {
  font-weight: 600;
  text-decoration: none;
  margin-top: var(--space-sm);
}

/* Quote / evidence */
.quote-block {
  border-left: 3px solid var(--color-forest);
  padding: var(--space-md) var(--space-lg);
  background: rgba(232, 223, 208, 0.45);
  margin: var(--space-lg) 0;
}

.quote-block p {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-style: italic;
  color: var(--color-forest-deep);
}

.quote-block cite {
  font-style: normal;
  font-size: 0.9rem;
  color: var(--color-ink-soft);
}

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

.review-item {
  border: 1px solid var(--color-border);
  padding: var(--space-lg);
  background: rgba(255, 252, 246, 0.5);
}

.review-item__meta {
  font-size: 0.9rem;
  color: var(--color-moss);
  margin-bottom: var(--space-sm);
}

.story-panel {
  margin-top: var(--space-xl);
  padding: var(--space-lg);
  border: 1px solid var(--color-border);
  background: var(--color-sand);
}

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

.rate-table th,
.rate-table td {
  text-align: left;
  padding: 0.85rem 0.75rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.rate-table th {
  font-family: var(--font-display);
  color: var(--color-forest-deep);
}

.rate-note {
  font-size: 0.95rem;
  color: var(--color-ink-soft);
}

/* Forms */
.form {
  display: grid;
  gap: var(--space-md);
  max-width: 36rem;
}

.form__group {
  display: grid;
  gap: 0.35rem;
}

.form__group label {
  font-weight: 600;
  font-size: 0.95rem;
}

.form__group input,
.form__group select,
.form__group textarea {
  font: inherit;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #fffdf8;
  color: var(--color-ink);
}

.form__group input:focus,
.form__group select:focus,
.form__group textarea:focus {
  outline: 2px solid var(--color-moss);
  outline-offset: 1px;
}

.form__error {
  color: var(--color-error);
  font-size: 0.88rem;
  min-height: 1.2em;
}

.form__status {
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  display: none;
}

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

.form__status--success {
  border-color: var(--color-forest);
  background: rgba(90, 122, 98, 0.12);
}

.form__status--error {
  border-color: var(--color-error);
  background: rgba(139, 58, 47, 0.08);
}

.contact-grid {
  display: grid;
  gap: var(--space-xl);
}

@media (min-width: 800px) {
  .contact-grid {
    grid-template-columns: 1.2fr 0.8fr;
  }
}

.contact-aside {
  border: 1px solid var(--color-border);
  padding: var(--space-lg);
  background: rgba(232, 223, 208, 0.4);
  height: fit-content;
}

.contact-aside address {
  font-style: normal;
  word-break: break-word;
}

/* Service detail */
.service-detail {
  max-width: var(--max);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md);
  display: grid;
  gap: var(--space-xl);
}

.service-detail__hero {
  display: grid;
  gap: var(--space-lg);
  align-items: center;
}

@media (min-width: 800px) {
  .service-detail__hero {
    grid-template-columns: 1fr 1fr;
  }

  .service-detail {
    grid-template-columns: 1.4fr 0.8fr;
  }

  .service-detail__hero {
    grid-column: 1 / -1;
  }
}

.service-detail__media img {
  width: 100%;
  height: 100%;
  min-height: 16rem;
  object-fit: cover;
  border: 1px solid var(--color-border);
}

.service-detail__aside {
  border: 1px solid var(--color-border);
  padding: var(--space-lg);
  background: rgba(232, 223, 208, 0.35);
  height: fit-content;
}

.detail-list {
  margin: 0 0 var(--space-lg);
}

.detail-list dt {
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-moss);
  margin-top: var(--space-sm);
}

.detail-list dd {
  margin: 0.2rem 0 0;
}

/* Article / blog */
.article {
  max-width: var(--narrow);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md);
}

.article__meta {
  color: var(--color-moss);
  font-size: 0.9rem;
  margin-bottom: var(--space-xs);
}

.article__cover {
  margin: var(--space-lg) 0;
}

.article__cover img {
  width: 100%;
  border: 1px solid var(--color-border);
}

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

.prose h3 {
  margin-top: var(--space-lg);
}

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

.post-teaser {
  display: grid;
  gap: var(--space-md);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-lg);
}

@media (min-width: 700px) {
  .post-teaser {
    grid-template-columns: 12rem 1fr;
    align-items: start;
  }
}

.post-teaser__image {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--color-border);
}

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

.post-teaser time {
  font-size: 0.85rem;
  color: var(--color-moss);
}

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

.pathway-steps li {
  position: relative;
  padding: var(--space-md) 0 var(--space-md) 3.5rem;
  border-bottom: 1px solid var(--color-border);
  counter-increment: step;
}

.pathway-steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: var(--space-md);
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--color-forest);
  color: var(--color-forest);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: 0.95rem;
  background: var(--color-sand);
}

.pathway-visual {
  margin: var(--space-lg) 0;
  border: 1px solid var(--color-border);
}

.pathway-visual img {
  width: 100%;
  max-height: 28rem;
  object-fit: cover;
}

/* Split band */
.band {
  background: var(--color-sand);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.band .section {
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
}

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

@media (min-width: 800px) {
  .two-col {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

.two-col__media img {
  width: 100%;
  border: 1px solid var(--color-border);
  max-height: 22rem;
  object-fit: cover;
}

/* 404 */
.error-page {
  max-width: var(--narrow);
  margin: 0 auto;
  padding: var(--space-2xl) var(--space-md);
  text-align: center;
}

.error-page h1 {
  font-size: clamp(3rem, 10vw, 5rem);
  margin-bottom: var(--space-sm);
}

/* Legal */
.legal {
  max-width: var(--narrow);
  margin: 0 auto;
  padding: var(--space-xl) var(--space-md) var(--space-2xl);
}

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

.cookies-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  margin: var(--space-md) 0;
}

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

.cookies-table th {
  background: var(--color-sand);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}