/* ============================================================
   Group SRS — Holding page stylesheet
   ============================================================ */

/* --- Fonts (self-hosted Raleway) --- */
@font-face {
  font-family: "Raleway";
  src: url("../fonts/raleway-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Raleway";
  src: url("../fonts/raleway-500.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Raleway";
  src: url("../fonts/raleway-600.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Raleway";
  src: url("../fonts/raleway-700.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Raleway";
  src: url("../fonts/raleway-800.woff2") format("woff2");
  font-weight: 800;
  font-style: normal;
  font-display: swap;
}

/* --- Design tokens --- */
:root {
  /* Group SRS brand palette, derived from the supplied logo (thistle green + plum) */
  --colour-brand-green: #1d6b41;
  --colour-brand-green-dark: #144d2f;
  --colour-brand-plum: #96375f;

  --colour-bg: #f4f5f6;
  --colour-surface: #ffffff;
  --colour-text: #262421;
  --colour-text-muted: #605c57;
  --colour-border: #e6e1da;

  --font-body: "Raleway", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;

  --radius: 6px;
  --max-width: 1360px;

  --transition: 200ms ease;
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  position: relative;
  margin: 0;
  min-height: 100vh;
  background-color: var(--colour-bg);
  color: var(--colour-text);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.bg-decor {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
  filter: blur(60px);
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

.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;
}

:focus-visible {
  outline: 2px solid var(--colour-brand-green);
  outline-offset: 3px;
  border-radius: 2px;
}

/* --- Hero --- */
.hero {
  padding: var(--space-6) var(--space-3) var(--space-4);
}

.hero__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero__logo {
  width: 100%;
  max-width: 140px;
  height: auto;
  margin-bottom: var(--space-3);
}

.hero__statement {
  margin: 0;
  max-width: 46rem;
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
  font-weight: 300;
  letter-spacing: 0.01em;
  color: var(--colour-text-muted);
}

@media (max-width: 640px) {
  .hero__statement {
    max-width: 26rem;
  }
}

.hero__statement span {
  color: var(--colour-brand-green-dark);
  font-weight: 600;
}

/* --- Companies section --- */
.companies {
  padding: 0 var(--space-3) var(--space-6);
}

.card-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}

@media (max-width: 980px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

.card {
  display: flex;
}

.card__link {
  display: flex;
  flex-direction: column;
  width: 100%;
  background: var(--colour-surface);
  border: 1px solid var(--colour-border);
  border-radius: var(--radius);
  padding: var(--space-3);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.card__link:hover,
.card__link:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 12px 24px -18px rgba(20, 40, 30, 0.35);
  border-color: var(--colour-brand-green);
}

.card__logo-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 84px;
  margin-bottom: var(--space-3);
}

.card__logo {
  max-height: 100%;
  max-width: 140px;
  width: auto;
  object-fit: contain;
}

.card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  text-align: center;
}

.card__name {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  margin-bottom: var(--space-1);
}

.card__desc {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--colour-text-muted);
  flex: 1;
  margin-bottom: var(--space-3);
}

.card__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35em;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--colour-brand-green-dark);
  padding-top: var(--space-2);
  border-top: 1px solid var(--colour-border);
}

.card__arrow {
  display: inline-block;
  transition: transform var(--transition);
}

.card__link:hover .card__arrow,
.card__link:focus-visible .card__arrow {
  transform: translateX(4px);
}

/* --- Footer --- */
.site-footer {
  padding: var(--space-3);
  text-align: center;
  border-top: 1px solid var(--colour-border);
}

.site-footer p {
  margin: 0 0 var(--space-1);
  font-size: 0.85rem;
  color: var(--colour-text-muted);
}

.site-footer__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-1) var(--space-3);
}

.site-footer__links a {
  font-size: 0.8rem;
  color: var(--colour-text-muted);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), color var(--transition);
}

.site-footer__links a:hover,
.site-footer__links a:focus-visible {
  color: var(--colour-brand-green-dark);
  border-color: currentColor;
}

/* --- Reduced motion --- */
@media (prefers-reduced-motion: reduce) {
  * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
  .card__link:hover,
  .card__link:focus-visible {
    transform: none;
  }
}