/* ==========================================================================
   Octivra Technologies — Shared component primitives
   Buttons, eyebrows, section headers, cards, badges, chips, lists, forms,
   alerts and brand-mark coloring. Page-specific composition lives in the
   scoped *.razor.css files next to each component.
   ========================================================================== */

/* ---- Icons ---------------------------------------------------------------- */
.icon {
  width: var(--icon-size, 1.25rem);
  height: var(--icon-size, 1.25rem);
  flex-shrink: 0;
}

.icon-tile {
  --icon-size: 1.375rem;
  display: inline-grid;
  place-items: center;
  width: 2.875rem;
  height: 2.875rem;
  border-radius: 12px;
  color: var(--color-accent);
  background:
    linear-gradient(160deg, rgba(49, 199, 213, 0.16), rgba(82, 123, 255, 0.08));
  border: 1px solid var(--color-border-accent);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08);
  flex-shrink: 0;
}

.icon-tile--lg {
  --icon-size: 1.625rem;
  width: 3.375rem;
  height: 3.375rem;
  border-radius: 14px;
}

.icon-tile--sm {
  --icon-size: 1.125rem;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 10px;
}

/* ---- Buttons -------------------------------------------------------------- */
.btn {
  --btn-bg: transparent;
  --btn-fg: var(--color-heading);
  --btn-border: transparent;
  --icon-size: 1.0625rem;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.875rem;
  padding: 0 1.25rem;
  border: 1px solid var(--btn-border);
  border-radius: var(--radius);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: var(--weight-semibold);
  letter-spacing: -0.006em;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  transition:
    background-color var(--dur) var(--ease-out),
    border-color var(--dur) var(--ease-out),
    color var(--dur) var(--ease-out),
    box-shadow var(--dur) var(--ease-out),
    transform var(--dur) var(--ease-out);
}

.btn:hover,
.btn:focus-visible {
  color: var(--btn-fg);
}

.btn:active {
  transform: translateY(1px);
}

.btn .icon--trail {
  transition: transform var(--dur) var(--ease-out);
}

.btn:hover .icon--trail {
  transform: translateX(3px);
}

.btn:focus-visible {
  outline-offset: 3px;
  border-radius: var(--radius);
}

.btn--primary {
  --btn-bg: var(--brand-cyan);
  --btn-fg: var(--brand-navy);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.35),
    0 10px 28px -12px rgba(49, 199, 213, 0.75);
}

.btn--primary:hover {
  --btn-bg: #52D4DF;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    0 14px 34px -12px rgba(49, 199, 213, 0.9);
}

.btn--secondary {
  --btn-bg: transparent;
  --btn-fg: var(--color-heading);
  --btn-border: var(--color-border-strong);
}

.btn--secondary:hover {
  --btn-bg: var(--color-surface-hover);
  --btn-border: var(--color-border-accent);
}

/* Inverts with the theme: navy on light, white on dark. */
.btn--solid {
  --btn-bg: var(--color-heading);
  --btn-fg: var(--color-bg);
  box-shadow: var(--shadow-sm);
}

.btn--solid:hover {
  --btn-bg: var(--color-text-secondary);
}

.btn--ghost {
  --btn-fg: var(--color-accent);
  min-height: auto;
  padding: 0.25rem 0;
  border: 0;
  background: none;
}

.btn--ghost:hover {
  --btn-fg: var(--color-heading);
}

.btn--sm {
  min-height: 2.375rem;
  padding: 0 0.95rem;
  font-size: 0.875rem;
  border-radius: 9px;
}

.btn--lg {
  min-height: 3.25rem;
  padding: 0 1.5rem;
  font-size: 1rem;
  border-radius: 12px;
}

.btn[disabled],
.btn[aria-disabled="true"] {
  opacity: 0.6;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* Inline text link with arrow */
.link-arrow {
  --icon-size: 1rem;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-weight: var(--weight-semibold);
  font-size: 0.9375rem;
  color: var(--color-accent);
  text-decoration: none;
}

.link-arrow .icon {
  transition: transform var(--dur) var(--ease-out);
}

.link-arrow:hover {
  color: var(--color-heading);
}

.link-arrow:hover .icon {
  transform: translateX(3px);
}

/* ---- Eyebrow (section kicker) -------------------------------------------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-accent);
  line-height: 1.4;
}

/* Ring-and-core glyph echoing the brand mark */
.eyebrow::before {
  content: "";
  width: 0.625rem;
  height: 0.625rem;
  flex-shrink: 0;
  border-radius: 50%;
  border: 1.5px solid currentColor;
  background: radial-gradient(circle, currentColor 0 1.6px, transparent 2.2px);
  opacity: 0.9;
}

.eyebrow--plain::before {
  display: none;
}

/* ---- Section header -------------------------------------------------------- */
.section-header {
  max-width: 46rem;
  margin-bottom: clamp(2.5rem, 1.8rem + 2.4vw, 4rem);
}

.section-header > .eyebrow + * {
  margin-top: var(--space-4);
}

.section-header .lead,
.section-header > p {
  margin-top: var(--space-5);
}

.section-header--center {
  margin-inline: auto;
  text-align: center;
}

.section-header--center .lead,
.section-header--center > p {
  margin-inline: auto;
}

.section-header--split {
  max-width: none;
  display: grid;
  gap: var(--space-6);
  align-items: end;
}

@media (min-width: 64rem) {
  .section-header--split {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: var(--space-16);
  }

  .section-header--split .lead,
  .section-header--split > p {
    margin-top: 0;
  }
}

/* ---- Cards ------------------------------------------------------------------ */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: clamp(1.5rem, 1.2rem + 1vw, 2rem);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  transition:
    transform var(--dur-slow) var(--ease-out),
    border-color var(--dur) var(--ease-out),
    box-shadow var(--dur-slow) var(--ease-out),
    background-color var(--dur) var(--ease-out);
}

.card h3 {
  font-size: var(--text-xl);
}

.card p {
  color: var(--color-text-muted);
}

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

/* Gradient hairline that fades in on hover */
.card--glow::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, rgba(49, 199, 213, 0.85), rgba(82, 123, 255, 0.55) 42%, transparent 72%);
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--dur-slow) var(--ease-out);
  pointer-events: none;
}

.card--glow:hover::before,
.card--glow:focus-within::before {
  opacity: 1;
}

/* Makes the whole card clickable through its main link while keeping
   the link text as the accessible name. */
.card-link::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  z-index: 1;
}

.card-link {
  color: inherit;
  text-decoration: none;
}

.card-link:hover {
  color: inherit;
}

.card-link:focus-visible {
  outline: none;
}

.card-link:focus-visible::after {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

/* ---- Badges ---------------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.2rem 0.625rem 0.2rem 0.5rem;
  border-radius: var(--radius-full);
  border: 1px solid currentColor;
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.02em;
  line-height: 1.5;
  white-space: nowrap;
  color: var(--color-text-secondary);
  background: var(--color-surface-2);
}

.badge::before {
  content: "";
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}

.badge--planned {
  color: var(--color-accent-strong);
  background: var(--color-accent-blue-bg);
  border-color: color-mix(in srgb, var(--color-accent-strong) 35%, transparent);
}

.badge--development {
  color: var(--color-accent);
  background: var(--color-accent-bg);
  border-color: color-mix(in srgb, var(--color-accent) 40%, transparent);
}

.badge--early-access {
  color: var(--color-warning);
  background: var(--color-warning-bg);
  border-color: color-mix(in srgb, var(--color-warning) 40%, transparent);
}

.badge--available {
  color: var(--color-success);
  background: var(--color-success-bg);
  border-color: color-mix(in srgb, var(--color-success) 40%, transparent);
}

.badge--neutral {
  border-color: var(--color-border-strong);
}

/* ---- Chips / tags --------------------------------------------------------- */
.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: 0;
  list-style: none;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  color: var(--color-text-secondary);
  font-size: 0.8125rem;
  font-weight: var(--weight-medium);
  line-height: 1.45;
}

/* ---- Lists ------------------------------------------------------------------ */
.check-list {
  display: grid;
  gap: var(--space-3);
  padding: 0;
  list-style: none;
}

.check-list > li {
  position: relative;
  padding-left: 1.875rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
}

.check-list > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.1em;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  background: var(--color-accent-bg);
  border: 1px solid var(--color-border-accent);
}

.check-list > li::after {
  content: "";
  position: absolute;
  left: 0.45rem;
  top: calc(0.1em + 0.3rem);
  width: 0.32rem;
  height: 0.55rem;
  border: solid var(--color-accent);
  border-width: 0 1.75px 1.75px 0;
  transform: rotate(45deg);
}

.check-list--compact {
  gap: var(--space-2);
  font-size: var(--text-sm);
}

/* Node bullets (brand motif) */
.node-list {
  display: grid;
  gap: var(--space-3);
  padding: 0;
  list-style: none;
}

.node-list > li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--color-text-secondary);
}

.node-list > li::before {
  content: "";
  position: absolute;
  left: 0.125rem;
  top: 0.5em;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  border: 1.5px solid var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-bg);
}

/* ---- Alerts ----------------------------------------------------------------- */
.alert {
  --icon-size: 1.25rem;
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface-2);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  line-height: 1.55;
}

.alert strong {
  display: block;
  margin-bottom: 0.15rem;
  font-size: var(--text-base);
}

.alert .icon {
  margin-top: 0.1rem;
}

.alert--success {
  border-color: color-mix(in srgb, var(--color-success) 40%, transparent);
  background: var(--color-success-bg);
}

.alert--success .icon {
  color: var(--color-success);
}

.alert--warning {
  border-color: color-mix(in srgb, var(--color-warning) 45%, transparent);
  background: var(--color-warning-bg);
}

.alert--warning .icon {
  color: var(--color-warning);
}

.alert--danger {
  border-color: color-mix(in srgb, var(--color-danger) 45%, transparent);
  background: var(--color-danger-bg);
}

.alert--danger .icon {
  color: var(--color-danger);
}

.alert--info .icon {
  color: var(--color-accent);
}

/* ---- Forms ---------------------------------------------------------------- */
.field {
  display: grid;
  gap: var(--space-2);
}

.field__label {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-heading);
}

.field__optional {
  font-weight: var(--weight-regular);
  color: var(--color-text-muted);
}

.field__control {
  width: 100%;
  min-height: 3rem;
  padding: 0.75rem 0.95rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border-strong);
  background: var(--color-input-bg);
  color: var(--color-text);
  font-size: var(--text-base);
  line-height: 1.4;
  transition:
    border-color var(--dur) var(--ease-out),
    box-shadow var(--dur) var(--ease-out),
    background-color var(--dur) var(--ease-out);
}

.field__control::placeholder {
  color: var(--color-text-faint);
  opacity: 1;
}

.field__control:hover {
  border-color: color-mix(in srgb, var(--color-accent) 45%, var(--color-border-strong));
}

.field__control:focus,
.field__control:focus-visible {
  /* Transparent rather than none: forced-colors (High Contrast) mode turns it into a visible outline. */
  outline: 2px solid transparent;
  outline-offset: 2px;
  border-color: var(--color-focus);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-focus) 28%, transparent);
}

textarea.field__control {
  min-height: 9.5rem;
  resize: vertical;
}

select.field__control {
  appearance: none;
  padding-right: 2.75rem;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--color-text-muted) 50%),
    linear-gradient(135deg, var(--color-text-muted) 50%, transparent 50%);
  background-position:
    calc(100% - 1.25rem) 52%,
    calc(100% - 0.9rem) 52%;
  background-size: 0.36rem 0.36rem;
  background-repeat: no-repeat;
}

select.field__control option {
  color: var(--brand-navy);
  background: #fff;
}

.field__control[aria-invalid="true"],
.field__control.invalid {
  border-color: var(--color-danger);
}

.field__control[aria-invalid="true"]:focus,
.field__control.invalid:focus {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-danger) 25%, transparent);
}

.field__hint {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.field__error,
.validation-message {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-danger);
}

/* ---- Brand lockup ------------------------------------------------------------ */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--logo-text);
  text-decoration: none;
  border-radius: var(--radius-sm);
}

.brand:hover {
  color: var(--logo-text);
}

.brand__mark {
  width: 2.125rem;
  height: 2.125rem;
  transition: transform 900ms var(--ease-out);
}

.brand:hover .brand__mark {
  transform: rotate(45deg);
}

.brand__text {
  display: inline-flex;
  flex-direction: column;
  gap: 0.3rem;
}

.brand__wordmark {
  width: auto;
  height: 0.95rem;
}

.brand__descriptor {
  font-family: var(--font-mono);
  font-size: 0.5625rem;
  font-weight: var(--weight-medium);
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  line-height: 1;
}

/* ---- Brand mark & wordmark coloring --------------------------------------- */
.logo-mark .lm-s0 { stroke: var(--logo-c0); }
.logo-mark .lm-s1 { stroke: var(--logo-c1); }
.logo-mark .lm-s2 { stroke: var(--logo-c2); }
.logo-mark .lm-s3 { stroke: var(--logo-c3); }
.logo-mark .lm-s4 { stroke: var(--logo-c4); }
.logo-mark .lm-core { fill: var(--logo-core); }
.logo-mark .lm-node { fill: var(--logo-node); }
.logo-mark .lm-spoke { stroke: var(--logo-spoke); }
.wordmark { fill: var(--logo-text); }

/* ---- Decorative glows --------------------------------------------------------- */
.glow {
  position: absolute;
  z-index: -1;
  pointer-events: none;
  border-radius: 50%;
  filter: blur(0);
  opacity: var(--glow-opacity, 1);
}

.glow--cyan {
  background: radial-gradient(closest-side, rgba(49, 199, 213, 0.22), transparent);
}

.glow--blue {
  background: radial-gradient(closest-side, rgba(82, 123, 255, 0.24), transparent);
}

/* ---- Numbered kicker (01, 02 …) ------------------------------------------------ */
.kicker-number {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  color: var(--color-text-faint);
}

/* ---- Illustration helpers -------------------------------------------------------- */
.illustration-note {
  font-family: var(--font-mono);
  font-size: var(--text-2xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-faint);
}