/* ===================================================================
   Littlebrook Consulting — stylesheet
   =================================================================== */

:root {
  /* Colour palette */
  --color-primary: #442178;      /* dark purple — headings, nav, footer */
  --color-primary-dark: #331861; /* pressed / hover state of primary */
  --color-accent: #8D5FD3;       /* light purple — CTAs, links, highlights */
  --color-accent-dark: #7847c2;  /* hover state of accent */
  --color-bg: #ffffff;
  --color-bg-alt: #f7f5fb;       /* soft tinted section background */
  --color-text: #241c33;         /* near-black charcoal with a purple cast */
  --color-text-muted: #665f77;
  --color-border: #e6e1f0;
  --color-white: #ffffff;

  /* Typography */
  --font-sans: 'Inter', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --fs-base: 1rem;
  --lh-base: 1.65;

  /* Layout */
  --max-width: 1120px;
  --radius: 8px;
  --transition: 180ms ease;
  --shadow-sm: 0 1px 3px rgba(68, 33, 120, 0.08);
  --shadow-md: 0 8px 24px rgba(68, 33, 120, 0.12);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-base);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

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

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 0.6em;
  color: var(--color-primary);
}

h1 { font-size: clamp(2.1rem, 4vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: 1.25rem; }

p {
  margin: 0 0 1em;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

section {
  padding-block: 5rem;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-intro {
  max-width: 640px;
  margin-bottom: 3rem;
}

.section-intro p {
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 0.85rem 1.8rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
}

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

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-light {
  background: var(--color-white);
  color: var(--color-primary);
}

.btn-light:hover {
  background: var(--color-bg-alt);
  transform: translateY(-1px);
}

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(150%) blur(6px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1.1rem;
}

.nav-logo {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-primary);
  letter-spacing: -0.01em;
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 26px;
  height: 19px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 110;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text);
  position: relative;
  padding-block: 0.25rem;
  transition: color var(--transition);
}

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

.nav-links a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}

.nav-links .btn {
  padding: 0.55rem 1.3rem;
}

/* ---------- Hero ---------- */
.hero {
  padding-block: 6rem 5rem;
  background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
}

.hero-inner {
  max-width: 720px;
}

.hero .eyebrow {
  margin-bottom: 1rem;
}

.hero h1 {
  margin-bottom: 0.9rem;
}

.hero-tagline {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  max-width: 560px;
  margin-bottom: 2.2rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.page-hero {
  padding-block: 4.5rem 3.5rem;
  background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
}

.page-hero .eyebrow {
  margin-bottom: 0.75rem;
}

.page-hero p {
  color: var(--color-text-muted);
  max-width: 620px;
  font-size: 1.05rem;
  margin-bottom: 0;
}

/* ---------- Intro / About snippet ---------- */
.intro-text {
  max-width: 780px;
  font-size: 1.1rem;
  color: var(--color-text-muted);
}

/* ---------- Card grids ---------- */
.grid {
  display: grid;
  gap: 1.75rem;
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--color-accent);
}

.card-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: var(--color-bg-alt);
  color: var(--color-accent);
  font-weight: 700;
  margin-bottom: 1.1rem;
}

.card h3 {
  margin-bottom: 0.6em;
}

.card p {
  color: var(--color-text-muted);
  margin-bottom: 1.2em;
}

.card-link {
  font-weight: 600;
  color: var(--color-accent);
  font-size: 0.92rem;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: gap var(--transition), color var(--transition);
}

.card-link:hover {
  gap: 0.6rem;
  color: var(--color-accent-dark);
}

.card-subheading {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  margin-bottom: 0.6em;
}

.service-delivers {
  margin: 0 0 1.3em;
  padding-left: 0;
  border-top: 1px solid var(--color-border);
  padding-top: 1rem;
}

.service-delivers li {
  position: relative;
  padding-left: 1.4rem;
  margin-bottom: 0.5rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.service-delivers li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
}

/* ---------- Case study cards ---------- */
.case-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2.25rem;
  margin-bottom: 1.75rem;
  scroll-margin-top: 6rem;
}

.case-tag {
  display: inline-block;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.case-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
  margin-top: 1.5rem;
}

.case-block h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  margin-bottom: 0.5em;
}

.case-block p {
  color: var(--color-text-muted);
  font-size: 0.97rem;
  margin-bottom: 0;
}

.case-result {
  border-left: 3px solid var(--color-accent);
  padding-left: 1rem;
}

/* Home snapshot variant (compact) */
.case-snapshot {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.9rem;
  transition: box-shadow var(--transition), transform var(--transition);
}

.case-snapshot:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

/* ---------- Team ---------- */
.team-photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
  letter-spacing: 0.02em;
}

.team-member h3 {
  margin-bottom: 0.15em;
}

.team-title {
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.8em;
}

.team-bio {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ---------- Mission / values ---------- */
.values-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3rem;
}

.value-item h3 {
  font-size: 1.05rem;
}

.value-item p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-form {
  display: grid;
  gap: 1.3rem;
}

.form-group {
  display: grid;
  gap: 0.45rem;
}

.form-group label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-primary);
}

.form-group input,
.form-group textarea {
  font-family: inherit;
  font-size: 1rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-alt);
  color: var(--color-text);
  transition: border-color var(--transition), background var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  background: var(--color-white);
}

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

.field-error {
  font-size: 0.82rem;
  color: #b3261e;
  min-height: 1em;
}

.form-group.has-error input,
.form-group.has-error textarea {
  border-color: #b3261e;
}

.form-status {
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius);
  font-size: 0.92rem;
  font-weight: 500;
  display: none;
}

.form-status.visible {
  display: block;
}

.form-status.success {
  background: #e9f7ef;
  color: #1e7a44;
}

.contact-info {
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  padding: 2rem;
}

.contact-info h3 {
  margin-bottom: 1rem;
}

.contact-info-item {
  margin-bottom: 1.4rem;
}

.contact-info-item h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  margin-bottom: 0.35em;
}

.contact-info-item p {
  margin-bottom: 0;
  color: var(--color-text);
}

.map-placeholder {
  margin-top: 1.5rem;
  border-radius: var(--radius);
  background: repeating-linear-gradient(
    45deg,
    var(--color-border),
    var(--color-border) 10px,
    var(--color-bg) 10px,
    var(--color-bg) 20px
  );
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  text-align: center;
  border: 1px solid var(--color-border);
}

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--color-primary);
  color: var(--color-white);
  text-align: center;
  padding-block: 4.5rem;
}

.cta-band h2 {
  color: var(--color-white);
}

.cta-band p {
  color: rgba(255, 255, 255, 0.78);
  max-width: 520px;
  margin-inline: auto 1.6em auto;
  margin-bottom: 2rem;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.85);
  padding-block: 3.5rem 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.footer-logo {
  color: var(--color-white);
  font-weight: 700;
  font-size: 1.15rem;
  margin-bottom: 0.8rem;
  display: inline-block;
}

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

.footer-about p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.92rem;
  max-width: 320px;
}

.footer-heading {
  color: var(--color-white);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
  font-weight: 600;
}

.footer-links li {
  margin-bottom: 0.65rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.92rem;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--color-white);
}

.footer-bottom {
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.6);
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .case-grid {
    grid-template-columns: 1fr;
    gap: 1.1rem;
  }

  .values-list {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 680px) {
  section {
    padding-block: 3.5rem;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    inset: 0 0 0 30%;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 1.75rem;
    background: var(--color-white);
    padding: 6rem 2rem 2rem;
    transform: translateX(100%);
    transition: transform var(--transition);
    box-shadow: var(--shadow-md);
  }

  .nav-links.open {
    transform: translateX(0);
  }

  .nav-links a {
    font-size: 1.1rem;
  }

  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    text-align: center;
  }
}