/*
 * wat.tl: the Wattl company site.
 * One stylesheet, no build step. Type follows the Manchester AI system:
 * Archivo (variable width and weight) for display and text, JetBrains Mono
 * for labels, numbers and meta. Colours stay Wattl's: white panels on a pale
 * blue-grey ground, navy ink, the mark's teal as the single accent.
 */

:root {
  --ground: #ffffff;
  --surface: #f6f9fc;
  --hairline: #e3e8ee;
  --hairline-strong: #cfd7e0;

  --ink: #0a2540;
  --ink-2: #425466;
  --ink-3: #6b7c93;

  --accent: #0b7a9e;
  --accent-hover: #0a6785;
  --accent-soft: #e6f4f9;
  --cyan: #3cc0e4;

  --shadow-card: 0 1px 2px rgba(10, 37, 64, 0.06), 0 8px 24px rgba(10, 37, 64, 0.08);
  --shadow-card-hover: 0 2px 4px rgba(10, 37, 64, 0.08), 0 18px 40px rgba(10, 37, 64, 0.14);

  --radius: 12px;
  --radius-sm: 6px;

  --wrap: 78rem;
  --gutter: clamp(1.25rem, 3vw, 2.5rem);

  --font-display: "Archivo", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-sans: "Archivo", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

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

body {
  margin: 0;
  background: var(--surface);
  color: var(--ink-2);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.55;
  letter-spacing: -0.011em;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

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

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

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

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Display type, as on manchesterai.co: heavy, uppercase, tightly tracked. */
h1,
h2 {
  font-family: var(--font-display);
  font-weight: 800;
  text-transform: uppercase;
  color: var(--ink);
  line-height: 0.9;
  margin: 0 0 0.5em;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.6rem, 1.8rem + 3.4vw, 4.75rem);
}

h2 {
  font-size: clamp(1.4rem, 1.2rem + 0.8vw, 1.9rem);
  letter-spacing: -0.03em;
}

p {
  margin: 0 0 1em;
}

.wrap {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 100;
  background: var(--ink);
  color: #fff;
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
}

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

/* Eyebrows, labels and meta: JetBrains Mono, small, spaced, uppercase. */
.mono,
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.eyebrow {
  margin: 0 0 1rem;
}

.lede {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.05rem, 0.95rem + 0.5vw, 1.3rem);
  line-height: 1.4;
  letter-spacing: -0.012em;
  color: var(--ink);
  max-width: 34em;
}

/* Header ------------------------------------------------------------------ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.9);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--hairline);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--ink);
}

.brand-mark {
  width: 2rem;
  height: 2rem;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.045em;
  line-height: 1;
  color: var(--ink);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.site-nav a {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-2);
  text-decoration: none;
}

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

/* Buttons ----------------------------------------------------------------- */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  line-height: 1.2;
  text-decoration: none;
  border: 1px solid transparent;
  background: var(--accent);
  color: #fff;
  transition: background-color 0.15s ease, transform 0.15s ease;
}

.button:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-1px);
}

.button-secondary {
  background: #fff;
  color: var(--ink);
  border-color: var(--hairline-strong);
}

.button-secondary:hover {
  background: #fff;
  color: var(--ink);
  border-color: var(--ink-3);
}

/* Panels ------------------------------------------------------------------ */

.panels {
  padding: clamp(1.5rem, 4vw, 3rem) 0 clamp(2.5rem, 6vw, 5rem);
}

/* Six panels of identical size: three across, then two, then one. */
.cards {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
  grid-auto-rows: 1fr;
}

@media (min-width: 44rem) {
  .cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 66rem) {
  .cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.75rem;
  background: #fff;
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  text-decoration: none;
  color: var(--ink-2);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

a.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--cyan);
  color: var(--ink-2);
}

/* Brand marks: app-icon style tiles at the top of each brand panel. */
.card-logo {
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 0.9rem;
  object-fit: cover;
  box-shadow: 0 1px 2px rgba(10, 37, 64, 0.14), 0 0 0 1px rgba(10, 37, 64, 0.06);
  margin-bottom: 1rem;
  flex-shrink: 0;
}

/* The Wattl mark is transparent, so it sits on a pale tile of its own. */
.card-logo-pad {
  background: var(--accent-soft);
  padding: 0.45rem;
  object-fit: contain;
}

/* Index numbers, in the mono like the row numbers on manchesterai.co. */
.card-index {
  position: absolute;
  top: 1.75rem;
  right: 1.75rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--ink-3);
  pointer-events: none;
}

.card-kind {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.card-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-stretch: 104%;
  font-size: clamp(1.9rem, 1.5rem + 1.2vw, 2.6rem);
  line-height: 0.92;
  letter-spacing: -0.035em;
  text-transform: uppercase;
  color: var(--ink);
  margin-top: 0.15rem;
  text-wrap: balance;
  transition: color 0.18s ease;
}

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

.card-summary {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.05rem;
  line-height: 1.35;
  letter-spacing: -0.012em;
  color: var(--ink);
  margin-top: 0.35rem;
}

.card-body {
  font-size: 0.95rem;
  color: var(--ink-2);
  max-width: 36em;
}

.card-link {
  margin-top: auto;
  padding-top: 1.25rem;
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  overflow-wrap: anywhere;
}

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

.card-link svg {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  vertical-align: -0.2em;
  margin-left: 0.3rem;
  transition: transform 0.18s ease;
}

a.card:hover .card-link svg {
  transform: translateX(3px);
}

.card .button {
  align-self: flex-start;
  margin-top: auto;
}

.card-details {
  margin: auto 0 0;
  padding-top: 1rem;
  display: grid;
  gap: 0.75rem;
}

.card-details div {
  display: grid;
  gap: 0.2rem;
}

.card-details dt {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.card-details dd {
  margin: 0;
  color: var(--ink);
  font-size: 0.95rem;
}

/* The investor panel: navy, with the mark's cyan as a glow. */
.card-dark {
  background: var(--ink);
  border-color: var(--ink);
  color: #cfd8e3;
  overflow: hidden;
}

.card-dark::after {
  content: "";
  position: absolute;
  right: -20%;
  top: -40%;
  width: 60%;
  height: 140%;
  background: radial-gradient(closest-side, rgba(60, 192, 228, 0.35), rgba(60, 192, 228, 0));
  pointer-events: none;
}

.card-dark > * {
  position: relative;
  z-index: 1;
}

.card-dark .card-kind {
  color: var(--cyan);
}

.card-dark .card-title,
.card-dark .card-summary {
  color: #fff;
}

.card-dark .card-body {
  color: #d6dee8;
}

.card-dark .button {
  background: #fff;
  color: var(--ink);
  margin-top: auto;
}

.card-dark .button:hover {
  background: var(--accent-soft);
  color: var(--ink);
}

/* Footer ------------------------------------------------------------------ */

.site-footer {
  border-top: 1px solid var(--hairline);
  background: #fff;
  padding: 1.5rem 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
  justify-content: space-between;
}

.footer-inner p {
  margin: 0;
}

.footer-inner a {
  color: var(--ink-2);
}

/* Secondary pages (privacy, 404) ------------------------------------------ */

.page {
  background: #fff;
}

.page-head {
  padding: clamp(3rem, 7vw, 5rem) 0 clamp(1.5rem, 4vw, 2.5rem);
}

.page-body {
  padding-bottom: clamp(3.5rem, 8vw, 6rem);
}

.page-body .prose {
  max-width: 44rem;
}

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

.page-body .prose p,
.page-body .prose li {
  font-size: 1rem;
}

.page-body .prose ul {
  padding-left: 1.25rem;
}

.page-body .prose li {
  margin-bottom: 0.5em;
}

.updated {
  font-family: var(--font-mono);
  color: var(--ink-3);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.notfound {
  text-align: center;
  padding: clamp(5rem, 14vw, 10rem) 0;
}

.notfound .lede {
  margin-inline: auto;
}

.notfound .actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1.75rem;
}