/* Alden subsite — supplementary styles.
   Extends the shared Quant Intelligence design system (../../css/style.css).
   Does not redefine anything already provided there. Cyan-only accent. */

/* ---------- Nav: back-to-parent + solid-cyan brand mark ---------- */

.nav-brand-group {
  display: flex;
  align-items: center;
  gap: 22px;
}

.nav-back {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.82rem;
  color: var(--text-faint);
  transition: color 0.2s var(--ease);
  white-space: nowrap;
}

.nav-back:hover { color: var(--text-dim); }

/* Alden is a single product on this subsite — its mark is solid cyan,
   not the two-tone company gradient used on the parent site. */
.nav-brand .nav-mark {
  background: var(--cyan);
  box-shadow: 0 0 18px rgba(79, 216, 255, 0.55);
}

@media (max-width: 640px) {
  .nav-back span.nav-back-label { display: none; }
}

/* ---------- Feature grids ---------- */

.feature-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

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

.feature-card {
  padding: 38px 34px;
  border-radius: var(--radius);
  border: 1px solid var(--surface-border);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.015));
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.18);
}

.feature-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  border: 1px solid var(--surface-border);
  background: var(--surface);
  color: var(--cyan);
}

.feature-icon svg { width: 20px; height: 20px; }

.feature-card h3 { font-size: 1.25rem; margin-bottom: 10px; }
.feature-card h4 { font-size: 1.05rem; margin-bottom: 8px; color: var(--cyan); }
.feature-card p:last-child { margin-bottom: 0; }

@media (max-width: 860px) {
  .feature-grid, .feature-grid.cols-3 { grid-template-columns: 1fr; }
}

/* ---------- Governance flow ---------- */

.flow-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  max-width: 900px;
  margin: 0 auto 56px;
}

.flow-step {
  padding: 13px 20px;
  border-radius: 999px;
  border: 1px solid var(--surface-border);
  background: var(--surface);
  color: var(--text);
  font-size: 0.9rem;
  white-space: nowrap;
}

.flow-step.accent {
  border-color: rgba(79, 216, 255, 0.4);
  color: var(--cyan);
}

.flow-arrow {
  color: var(--text-faint);
  font-size: 1rem;
}

@media (max-width: 640px) {
  .flow-row { flex-direction: column; }
  .flow-arrow { transform: rotate(90deg); }
}

.flow-grid {
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  max-width: 1000px;
  margin: 0 auto 56px;
}

.flow-card {
  flex: 1 1 200px;
  max-width: 220px;
  padding: 20px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--surface-border);
  background: var(--surface);
  text-align: center;
}

.flow-card.accent { border-color: rgba(79, 216, 255, 0.4); }

.flow-card .flow-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.flow-card.accent .flow-title { color: var(--cyan); }

.flow-card .flow-desc {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin: 0;
}

.flow-arrow-sep {
  align-self: center;
  color: var(--text-faint);
  font-size: 1.1rem;
  flex: 0 0 auto;
}

@media (max-width: 760px) {
  .flow-grid { flex-direction: column; align-items: center; }
  .flow-card { max-width: 320px; width: 100%; }
  .flow-arrow-sep { transform: rotate(90deg); }
}

/* ---------- Permission category cards ---------- */

.perm-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.perm-card {
  padding: 28px 26px;
  border-radius: var(--radius);
  border: 1px solid var(--surface-border);
  background: var(--surface);
}

.perm-card h4 { font-size: 1.02rem; margin-bottom: 10px; color: var(--cyan); }
.perm-card p { font-size: 0.9rem; }

.perm-rules {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.perm-rules li {
  font-size: 0.72rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--text-faint);
  border: 1px solid var(--surface-border);
  border-radius: 999px;
  padding: 5px 11px;
}

@media (max-width: 860px) {
  .perm-grid { grid-template-columns: 1fr; }
}

/* ---------- Roadmap / planned badge ---------- */

.badge-roadmap {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--surface-border);
  color: var(--text-faint);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-left: 8px;
  vertical-align: middle;
}

/* ---------- Simple content sections (non-hero) ---------- */

.alden-section {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 28px;
  text-align: center;
}

.alden-section.wide { max-width: var(--maxw); }

.alden-section p.lede {
  font-size: 1.02rem;
  margin: 0 auto 48px;
  max-width: 620px;
}

/* ---------- Forms (signup / login) ---------- */

.form-panel {
  max-width: 460px;
  margin: 0 auto;
  padding: 44px 40px;
  border-radius: var(--radius);
  border: 1px solid var(--surface-border);
  background: var(--bg-elevated);
}

.form-field { margin-bottom: 20px; text-align: left; }

.form-field label {
  display: block;
  font-size: 0.84rem;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.form-field input {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--surface-border);
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.2s var(--ease);
}

.form-field input:focus {
  outline: none;
  border-color: var(--cyan);
}

.form-panel .btn { width: 100%; justify-content: center; margin-top: 6px; }

.form-note {
  font-size: 0.86rem;
  color: var(--text-faint);
  margin-bottom: 24px;
  text-align: left;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--surface-border);
  background: var(--surface);
}

.form-note a { color: var(--cyan); border-bottom: 1px solid rgba(79, 216, 255, 0.4); }

.form-success {
  display: none;
  margin-top: 20px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(79, 216, 255, 0.35);
  background: var(--cyan-soft);
  color: var(--text);
  font-size: 0.9rem;
  text-align: left;
}

.form-success a { color: var(--cyan); }

.form-success.show { display: block; }

.form-footnote {
  text-align: center;
  font-size: 0.88rem;
  color: var(--text-faint);
  margin-top: 24px;
}

.form-footnote a { color: var(--text-dim); border-bottom: 1px solid var(--surface-border); }
.form-footnote a:hover { color: var(--cyan); border-color: var(--cyan); }