/* ============================================================
   HDRL Framework — Custom Styles for MkDocs Material
   ============================================================ */

/* ---------- Hero section ---------- */
.hdrl-hero {
  text-align: center;
  padding: 3rem 1rem 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.hdrl-hero h1 {
  font-size: 2.8rem !important;
  font-weight: 800 !important;
  background: linear-gradient(135deg, #0f766e 0%, #0d9488 40%, #3b82f6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem !important;
  line-height: 1.15 !important;
}

[data-md-color-scheme="slate"] .hdrl-hero h1 {
  background: linear-gradient(135deg, #2dd4bf 0%, #5eead4 40%, #93c5fd 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.hdrl-hero > p {
  font-size: 1.15rem;
  opacity: 0.75;
  max-width: 640px;
  margin: 0 auto 1.5rem;
  line-height: 1.6;
}

.hdrl-hero > p:first-of-type {
  font-size: 1.25rem;
  font-weight: 500;
  opacity: 0.9;
}

/* ---------- CTA button row ---------- */
.hdrl-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 2rem 0 0;
  justify-content: center;
}

.hdrl-cta .md-button {
  min-width: 200px;
  text-align: center;
  border-radius: 8px;
  font-weight: 600;
  padding: 0.65em 1.4em;
}

/* ---------- Stats bar ---------- */
.hdrl-stats {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.75rem;
  margin: 2rem auto;
  max-width: 720px;
}

@media (max-width: 600px) {
  .hdrl-stats { grid-template-columns: repeat(3, 1fr); }
}

.hdrl-stat {
  text-align: center;
  padding: 1.2rem 0.5rem;
  border-radius: 10px;
  background: var(--md-code-bg-color);
  border: 1px solid var(--md-default-fg-color--lightest);
}

.hdrl-stat .number {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--md-primary-fg-color);
  display: block;
  line-height: 1.15;
}

.hdrl-stat .label {
  font-size: 0.72rem;
  opacity: 0.6;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

/* ---------- Domain card grid ---------- */
.hdrl-domains {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.hdrl-domain-card {
  display: block;
  padding: 1.4rem 1.4rem 1.2rem;
  border-radius: 10px;
  border-left: 5px solid var(--md-primary-fg-color);
  background: var(--md-code-bg-color);
  border-top: 1px solid var(--md-default-fg-color--lightest);
  border-right: 1px solid var(--md-default-fg-color--lightest);
  border-bottom: 1px solid var(--md-default-fg-color--lightest);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none !important;
  color: inherit !important;
}

.hdrl-domain-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

[data-md-color-scheme="slate"] .hdrl-domain-card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.hdrl-domain-card .domain-ref {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--md-primary-fg-color);
  margin-bottom: 0.35rem;
}

.hdrl-domain-card h3 {
  margin: 0 0 0.35rem 0 !important;
  font-size: 1.05rem !important;
  font-weight: 700 !important;
}

.hdrl-domain-card p {
  margin: 0 !important;
  font-size: 0.82rem;
  opacity: 0.7;
  line-height: 1.45;
}

/* Domain colour variants */
.hdrl-domain-card.domain-a { border-left-color: #3b82f6; }
.hdrl-domain-card.domain-a .domain-ref { color: #3b82f6; }

.hdrl-domain-card.domain-b { border-left-color: #06b6d4; }
.hdrl-domain-card.domain-b .domain-ref { color: #06b6d4; }

.hdrl-domain-card.domain-c { border-left-color: #6366f1; }
.hdrl-domain-card.domain-c .domain-ref { color: #6366f1; }

.hdrl-domain-card.domain-d { border-left-color: #8b5cf6; }
.hdrl-domain-card.domain-d .domain-ref { color: #8b5cf6; }

.hdrl-domain-card.domain-e { border-left-color: #10b981; }
.hdrl-domain-card.domain-e .domain-ref { color: #10b981; }

.hdrl-domain-card.domain-f { border-left-color: #f59e0b; }
.hdrl-domain-card.domain-f .domain-ref { color: #f59e0b; }

.hdrl-domain-card.domain-g { border-left-color: #f43f5e; }
.hdrl-domain-card.domain-g .domain-ref { color: #f43f5e; }

.hdrl-domain-card.domain-h { border-left-color: #64748b; }
.hdrl-domain-card.domain-h .domain-ref { color: #64748b; }

/* ---------- Iframe container ---------- */
.hdrl-iframe-container {
  position: relative;
  width: 100%;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--md-default-fg-color--lightest);
  margin: 1.5rem 0;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.hdrl-iframe-container iframe {
  width: 100%;
  border: none;
  border-radius: 10px;
}

/* ---------- Feature grid ---------- */
.hdrl-features {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
  margin: 1.5rem 0;
}

.hdrl-feature {
  padding: 1.4rem;
  border-radius: 10px;
  background: var(--md-code-bg-color);
  border: 1px solid var(--md-default-fg-color--lightest);
}

svg.feature-icon {
  width: 2rem;
  height: 2rem;
  margin-bottom: 0.5rem;
  display: block;
  fill: var(--md-primary-fg-color);
}

.hdrl-audience-card svg.icon-inline {
  width: 1.1em;
  height: 1.1em;
  display: inline-block;
  vertical-align: -0.15em;
  fill: currentColor;
}

.hdrl-feature > p:first-child {
  margin: 0;
}

.hdrl-feature h3 {
  margin: 0 0 0.4rem !important;
  font-size: 0.95rem !important;
  font-weight: 700 !important;
}

.hdrl-feature p {
  margin: 0 !important;
  font-size: 0.83rem;
  opacity: 0.75;
  line-height: 1.5;
}

/* ---------- Audience cards ---------- */
.hdrl-audience {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
  margin: 1.5rem 0;
}

.hdrl-audience-card {
  padding: 1.3rem;
  border-radius: 10px;
  background: var(--md-code-bg-color);
  border: 1px solid var(--md-default-fg-color--lightest);
  text-align: center;
}

.hdrl-audience-card h4 {
  margin: 0 0 0.4rem !important;
  font-size: 0.9rem !important;
  font-weight: 700 !important;
  color: var(--md-primary-fg-color);
}

.hdrl-audience-card p {
  margin: 0 !important;
  font-size: 0.82rem;
  opacity: 0.75;
  line-height: 1.45;
}

/* ---------- "Bridging the gap" visual ---------- */
.hdrl-bridge {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 560px;
  margin: 1.5rem auto;
}

.hdrl-bridge-layer {
  padding: 0.9rem 1.2rem;
  border-radius: 8px;
  text-align: center;
}

.hdrl-bridge-layer.faded {
  background: var(--md-code-bg-color);
  border: 1px dashed var(--md-default-fg-color--lightest);
  opacity: 0.6;
}

.hdrl-bridge-layer.faded p { margin: 0; font-size: 0.82rem; opacity: 0.7; }
.hdrl-bridge-layer.faded strong { font-size: 0.9rem; }

.hdrl-bridge-layer.highlight {
  background: linear-gradient(135deg, #0f766e, #0d9488);
  color: white;
  padding: 1.1rem 1.4rem;
  transform: scale(1.03);
  box-shadow: 0 4px 16px rgba(15, 118, 110, 0.3);
}

[data-md-color-scheme="slate"] .hdrl-bridge-layer.highlight {
  box-shadow: 0 4px 16px rgba(15, 118, 110, 0.5);
}

.hdrl-bridge-layer.highlight strong { font-size: 1.05rem; }
.hdrl-bridge-layer.highlight p { margin: 0.2rem 0 0; font-size: 0.82rem; opacity: 0.9; }

/* ---------- Section dividers ---------- */
.hdrl-section-header {
  text-align: center;
  margin: 3rem 0 1rem;
}

.hdrl-section-header h2 {
  margin-bottom: 0.3rem !important;
}

.hdrl-section-header p {
  opacity: 0.6;
  font-size: 0.95rem;
  margin: 0;
}

/* ---------- Foundational requirement badge ---------- */
.foundational-req {
  border-left-color: #ef4444 !important;
}

/* ---------- Footer trim ---------- */
.hdrl-footer {
  text-align: center;
  opacity: 0.5;
  font-size: 0.82rem;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--md-default-fg-color--lightest);
}