/* ==============================================
   DSK INVESTMENTS — COMPLIANCE WEBSITE
   Refined minimalism · WCAG 2.1 AA+
   ============================================== */

:root {
  --color-bg: #FFFFFF;
  --color-surface: #FFFFFF;
  --color-surface-alt: #F7F8FA;
  --color-border: #E4E7EB;
  --color-border-strong: #CBD2DA;
  --color-text: #0F1F33;
  --color-text-secondary: #3F4A5C;
  --color-text-muted: #6B7280;
  --color-primary: #134E9C;
  --color-primary-hover: #0E3D7D;
  --color-primary-tint: #EEF4FB;
  --color-focus: #134E9C;

  --font-sans: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;

  --container: 1140px;
  --section-y: clamp(48px, 7vw, 88px);

  --radius-sm: 4px;
  --radius: 6px;

  --transition: 180ms ease;
}

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

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 8px;
  background: var(--color-primary);
  color: #fff;
  padding: 10px 16px;
  text-decoration: none;
  font-weight: 600;
  z-index: 1000;
  border-radius: var(--radius);
}
.skip-link:focus {
  top: 8px;
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
  border-radius: 2px;
}
button:focus-visible,
a:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 2px;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

section {
  padding: var(--section-y) 0;
  scroll-margin-top: 80px;
}

section + section {
  border-top: 1px solid var(--color-border);
}

.section-eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin: 0 0 12px;
}

h1, h2, h3, h4 {
  color: var(--color-text);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.25;
  margin: 0 0 16px;
}
h1 { font-size: clamp(28px, 4vw, 42px); font-weight: 600; letter-spacing: -0.02em; }
h2 { font-size: clamp(24px, 3vw, 32px); }
h3 { font-size: 18px; }
h4 { font-size: 16px; }

p {
  margin: 0 0 16px;
  color: var(--color-text-secondary);
}

a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 1px;
  transition: color var(--transition);
}
a:hover {
  color: var(--color-primary-hover);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: saturate(180%) blur(8px);
  -webkit-backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 78px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--color-text);
  font-weight: 600;
}
.brand:hover { color: var(--color-text); }
.brand-logo {
  display: block;
  height: 48px;
  width: auto;
  max-width: 220px;
}
@media (max-width: 480px) {
  .brand-logo { height: 40px; max-width: 180px; }
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  display: inline-block;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover {
  color: var(--color-primary);
  background: var(--color-primary-tint);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--color-primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius);
  transition: background var(--transition);
}
.nav-cta:hover { background: var(--color-primary-hover); color: #fff; }
.nav-cta svg { width: 14px; height: 14px; }

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-border);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 0;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
}
.nav-toggle:hover { background: var(--color-surface-alt); }
.nav-toggle svg { width: 20px; height: 20px; }

@media (max-width: 880px) {
  .nav-menu { display: none; }
  .nav-toggle { display: inline-flex; }

  .nav.is-open .nav-menu {
    display: flex;
    position: absolute;
    top: 78px;
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 12px 20px 20px;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 4px 16px rgba(15, 31, 51, 0.04);
  }
  .nav.is-open .nav-links {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
  }
  .nav.is-open .nav-links a {
    padding: 12px 14px;
    font-size: 15px;
  }
  .nav.is-open .nav-cta {
    margin-top: 8px;
    justify-content: center;
    padding: 14px 18px;
  }
}

.hero {
  padding: clamp(56px, 8vw, 96px) 0 clamp(48px, 6vw, 72px);
  background: var(--color-bg);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: start;
}
@media (min-width: 880px) {
  .hero-grid {
    grid-template-columns: 1.4fr 1fr;
    gap: 64px;
  }
}

.hero h1 {
  margin-bottom: 20px;
}
.hero .lead {
  font-size: clamp(16px, 1.6vw, 18px);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
}
.btn-primary:hover { background: var(--color-primary-hover); color: #fff; }
.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border-strong);
}
.btn-secondary:hover {
  background: var(--color-surface-alt);
  color: var(--color-text);
  border-color: var(--color-border-strong);
}
.btn svg { width: 14px; height: 14px; flex-shrink: 0; }

.reg-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}
.reg-card-title {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin: 0 0 16px;
}
.reg-card-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 14px;
}
.reg-card-list li {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.reg-card-label {
  font-size: 12px;
  color: var(--color-text-muted);
  font-weight: 500;
}
.reg-card-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  font-feature-settings: 'tnum' 1;
}

.section-head {
  max-width: 720px;
  margin-bottom: 40px;
}
.section-head p {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin: 0;
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 600px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 960px) {
  .services-grid { grid-template-columns: repeat(3, 1fr); }
}

.pillars-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 40px 0 0;
}
@media (min-width: 720px) {
  .pillars-grid { grid-template-columns: repeat(3, 1fr); }
}
.pillar-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: border-color var(--transition);
}
.pillar-card:hover { border-color: var(--color-border-strong); }
.pillar-icon {
  width: 44px;
  height: 44px;
  background: var(--color-primary-tint);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}
.pillar-icon svg { width: 22px; height: 22px; }
.pillar-card h3 {
  font-size: 17px;
  margin-bottom: 8px;
}
.pillar-card p {
  font-size: 14px;
  margin: 0;
  line-height: 1.55;
}

.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: border-color var(--transition);
}
.service-card:hover {
  border-color: var(--color-border-strong);
}
.service-icon {
  width: 40px;
  height: 40px;
  background: var(--color-primary-tint);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  margin-bottom: 16px;
}
.service-icon svg { width: 20px; height: 20px; }
.service-card h3 {
  font-size: 16px;
  margin-bottom: 8px;
}
.service-card p {
  font-size: 14px;
  margin: 0;
  line-height: 1.55;
}

.leadership-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  background: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 32px;
}
@media (min-width: 720px) {
  .leadership-card {
    grid-template-columns: 220px 1fr;
    gap: 40px;
    padding: 40px;
  }
}
.leader-photo {
  width: 100%;
  max-width: 220px;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: center top;
  border-radius: var(--radius);
  display: block;
  background: var(--color-surface-alt);
}
.leader-info h3 {
  font-size: 22px;
  margin-bottom: 4px;
}
.leader-role {
  font-size: 14px;
  color: var(--color-primary);
  font-weight: 600;
  margin: 0 0 16px;
}
.leader-bio { font-size: 15px; }
.university-logos {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: center;
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}
.university-logos img {
  height: 48px;
  width: auto;
  max-width: 200px;
  object-fit: contain;
  opacity: 0.85;
  transition: opacity var(--transition);
}
.university-logos img:hover { opacity: 1; }
@media (max-width: 480px) {
  .university-logos img { height: 38px; max-width: 160px; }
}
.linkedin-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  padding: 9px 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  background: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius);
  transition: background var(--transition), border-color var(--transition);
}
.linkedin-btn:hover {
  background: var(--color-primary-tint);
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.linkedin-btn svg { width: 16px; height: 16px; flex-shrink: 0; }

.reg-table-wrap {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--color-surface);
}
.reg-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.reg-table th, .reg-table td {
  text-align: left;
  padding: 14px 20px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}
.reg-table tr:last-child th,
.reg-table tr:last-child td { border-bottom: none; }
.reg-table th {
  font-weight: 500;
  color: var(--color-text-muted);
  width: 38%;
  background: var(--color-surface-alt);
}
.reg-table td {
  font-weight: 600;
  color: var(--color-text);
  font-feature-settings: 'tnum' 1;
}
.reg-table td a { font-weight: 500; }
@media (max-width: 560px) {
  .reg-table th, .reg-table td {
    display: block;
    width: 100%;
    padding: 8px 16px;
  }
  .reg-table th {
    background: var(--color-surface-alt);
    padding-top: 14px;
    border-bottom: none;
  }
  .reg-table td {
    padding-bottom: 14px;
  }
}

.complaints-wrap {
  margin-top: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}
.complaints-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.complaints-table thead {
  background: var(--color-primary-tint);
}
.complaints-table th {
  font-weight: 600;
  text-align: left;
  padding: 12px 16px;
  color: var(--color-text);
  font-size: 13px;
  letter-spacing: 0.02em;
  border-bottom: 1px solid var(--color-border);
}
.complaints-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}
.complaints-table tr:last-child td { border-bottom: none; }
.complaints-table tbody tr:nth-child(even) { background: var(--color-surface-alt); }

.small-print {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 12px;
}

.policies {
  display: grid;
  gap: 12px;
}
.policy {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
}
.policy[open] { border-color: var(--color-border-strong); }
.policy summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  transition: background var(--transition);
}
.policy summary::-webkit-details-marker { display: none; }
.policy summary:hover { background: var(--color-surface-alt); }

.policy-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
  line-height: 1.25;
  letter-spacing: -0.01em;
  flex: 1;
}

.policy-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  transition: transform var(--transition);
}
.policy[open] .policy-icon { transform: rotate(180deg); }
.policy-icon svg { width: 16px; height: 16px; }

.policy-body {
  padding: 4px 24px 24px;
  border-top: 1px solid var(--color-border);
  margin-top: 0;
}
.policy[open] .policy-body { padding-top: 20px; }
.policy-body h4 {
  font-size: 14px;
  font-weight: 600;
  margin: 20px 0 8px;
  color: var(--color-text);
}
.policy-body h4:first-child { margin-top: 0; }
.policy-body p, .policy-body li {
  font-size: 14px;
  line-height: 1.65;
  color: var(--color-text-secondary);
}
.policy-body ul, .policy-body ol {
  padding-left: 22px;
  margin: 0 0 16px;
}
.policy-body li { margin-bottom: 6px; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
@media (min-width: 720px) {
  .contact-grid { grid-template-columns: 1fr 1fr 1fr; }
}
.contact-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}
.contact-card h3 {
  font-size: 14px;
  font-weight: 600;
  margin: 0 0 12px;
  color: var(--color-text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.contact-card p {
  font-size: 15px;
  margin: 0 0 4px;
  color: var(--color-text);
}
.contact-card .label {
  color: var(--color-text-muted);
  font-size: 13px;
  margin-top: 8px;
}
.contact-card a {
  font-size: 14px;
  font-weight: 500;
  word-break: break-word;
}

.site-footer {
  background: var(--color-surface-alt);
  border-top: 1px solid var(--color-border);
  padding: 40px 0 32px;
  margin-top: 0;
}
.footer-disclaimer {
  font-size: 13px;
  color: var(--color-text-secondary);
  max-width: 880px;
  line-height: 1.65;
  margin: 0 auto 24px;
  padding: 16px 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  text-align: center;
}
.footer-bottom {
  display: flex;
  justify-content: center;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
  font-size: 13px;
  color: var(--color-text-muted);
  text-align: center;
}
.footer-copy {
  margin: 0;
  font-size: 13px;
  color: var(--color-text-muted);
}

.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;
}

@media print {
  .site-header, .nav-cta, .nav-toggle { display: none; }
  .policy { break-inside: avoid; }
  .policy-body { display: block !important; }
  a { color: var(--color-text); text-decoration: none; }
}