/* ==========================================================================
   components.css — buttons, badges, callouts, accordions, stats, steps,
   illustrations, CTA bands and other reusable UI primitives
   ========================================================================== */

/* Buttons ---------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 26px;
  border-radius: var(--radius-pill);
  font-family: var(--font-heading);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.01em;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background var(--duration-fast) var(--ease-out),
    color var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}

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

.btn:active {
  transform: translateY(0);
}

.btn svg {
  width: 15px;
  height: 15px;
  flex: 0 0 auto;
}

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

.btn--primary:hover {
  background: var(--color-accent-dark);
  color: var(--color-ink-invert);
}

.btn--secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border);
}

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

.btn--ghost {
  background: transparent;
  color: var(--color-accent-dark);
  padding-inline: 6px;
}

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

.btn--light {
  background: var(--color-highlight);
  color: var(--color-accent-dark);
}

.btn--light:hover {
  background: var(--color-surface);
  color: var(--color-accent-dark);
}

.btn--outline-light {
  border-color: rgba(245, 245, 240, 0.32);
  color: var(--color-ink-invert);
}

.btn--outline-light:hover {
  border-color: var(--color-highlight);
  color: var(--color-highlight);
}

.btn--small {
  padding: 10px 18px;
  font-size: 14px;
}

.btn--block {
  width: 100%;
}

/* Text link with arrow --------------------------------------------------- */

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 15px;
  color: var(--color-accent-dark);
  text-decoration: none;
}

.link-arrow svg {
  width: 14px;
  transition: transform var(--duration-fast) var(--ease-out);
}

.link-arrow:hover svg {
  transform: translateX(4px);
}

/* Badges and pills ------------------------------------------------------- */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.02em;
  background: var(--color-surface-alt);
  color: var(--color-accent-dark);
  border: 1px solid var(--color-border);
  width: fit-content;
}

.badge--accent {
  background: var(--color-accent-soft);
  border-color: transparent;
  color: var(--color-accent-dark);
}

.badge--highlight {
  background: var(--color-highlight);
  border-color: transparent;
  color: var(--color-accent-dark);
}

.badge--outline {
  background: transparent;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xs);
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  transition: border-color var(--duration-fast) var(--ease-out),
    background var(--duration-fast) var(--ease-out);
}

.pill:hover {
  border-color: var(--color-accent);
  background: var(--color-surface-alt);
  color: var(--color-accent-dark);
}

/* Callouts --------------------------------------------------------------- */

.callout {
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  background: var(--color-surface);
  border-radius: var(--radius-m);
  padding: var(--space-m) var(--space-l);
}

.callout__title {
  font-family: var(--font-heading);
  font-size: 17px;
  font-weight: 700;
  margin-bottom: var(--space-2xs);
  display: flex;
  align-items: center;
  gap: 8px;
}

.callout p {
  font-size: var(--fs-small);
  line-height: 1.6;
  color: var(--color-secondary);
}

.callout--note {
  border-left-color: var(--color-accent);
}

.callout--warning {
  border-left-color: #b4741f;
  background: #fdf8ee;
}

.callout--security {
  border-left-color: var(--color-accent-dark);
  background: var(--color-surface-alt);
}

.callout--independent {
  border-left-color: var(--color-secondary);
  background: var(--color-surface);
}

.callout--highlight {
  border-left-color: var(--color-accent);
  background: var(--color-highlight);
}

.callout--highlight p {
  color: var(--color-accent-dark);
}

/* Disclaimer band -------------------------------------------------------- */

.disclaimer-band {
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-m);
  background: var(--color-surface);
  padding: var(--space-m) var(--space-l);
  display: flex;
  gap: var(--space-m);
  align-items: flex-start;
}

.disclaimer-band__icon {
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--color-surface-alt);
  color: var(--color-accent-dark);
  display: grid;
  place-items: center;
}

.disclaimer-band__icon svg {
  width: 18px;
}

.disclaimer-band h2,
.disclaimer-band h3 {
  font-size: 17px;
  letter-spacing: -0.01em;
  line-height: 1.3;
  margin-bottom: 6px;
}

.disclaimer-band p {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-secondary);
  max-width: 96ch;
}

.disclaimer-band p + p {
  margin-top: 6px;
}

/* Stats ------------------------------------------------------------------ */

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-m);
}

.stat {
  padding: var(--space-m) 0;
  border-top: 2px solid var(--color-text);
}

.stat__value {
  font-family: var(--font-heading);
  font-size: clamp(30px, 3vw, 44px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: var(--ls-display);
  margin-bottom: var(--space-2xs);
}

.stat__label {
  font-size: 14px;
  color: var(--color-secondary);
  line-height: 1.45;
}

.section--ink .stat {
  border-top-color: rgba(217, 242, 200, 0.5);
}

.section--ink .stat__label {
  color: rgba(245, 245, 240, 0.7);
}

/* Steps ------------------------------------------------------------------ */

.steps {
  counter-reset: step;
  display: grid;
  gap: var(--space-m);
}

.steps--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.steps--4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.step {
  counter-increment: step;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-m);
  padding: var(--space-m);
}

.step::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: var(--space-s);
}

.step h3,
.step h4 {
  font-size: 19px;
  line-height: 1.25;
  margin-bottom: var(--space-2xs);
}

.step p {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--color-secondary);
}

/* Checklist -------------------------------------------------------------- */

.checklist {
  list-style: none;
  display: grid;
  gap: var(--space-xs);
}

.checklist--2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-xs) var(--space-l);
}

.checklist li {
  position: relative;
  padding-left: 30px;
  line-height: 1.55;
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-highlight);
  border: 1px solid rgba(36, 91, 70, 0.35);
}

.checklist li::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 12px;
  width: 6px;
  height: 3px;
  border-left: 2px solid var(--color-accent-dark);
  border-bottom: 2px solid var(--color-accent-dark);
  transform: rotate(-45deg);
}

/* Accordion / FAQ -------------------------------------------------------- */

.accordion {
  border-top: 1px solid var(--color-border);
}

.accordion__item {
  border-bottom: 1px solid var(--color-border);
}

.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-m);
  padding: var(--space-m) 0;
  text-align: left;
  font-family: var(--font-heading);
  font-size: clamp(18px, 1.5vw, 21px);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.3;
  color: var(--color-text);
  transition: color var(--duration-fast) var(--ease-out);
}

.accordion__trigger:hover {
  color: var(--color-accent);
}

.accordion__icon {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  display: grid;
  place-items: center;
  position: relative;
  margin-top: 3px;
  transition: background var(--duration-fast) var(--ease-out),
    border-color var(--duration-fast) var(--ease-out);
}

.accordion__icon::before,
.accordion__icon::after {
  content: "";
  position: absolute;
  background: currentColor;
  transition: transform var(--duration-base) var(--ease-out),
    opacity var(--duration-base) var(--ease-out);
}

.accordion__icon::before {
  width: 11px;
  height: 1.5px;
}

.accordion__icon::after {
  width: 1.5px;
  height: 11px;
}

.accordion__trigger[aria-expanded="true"] .accordion__icon {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-ink-invert);
}

.accordion__trigger[aria-expanded="true"] .accordion__icon::after {
  transform: rotate(90deg);
  opacity: 0;
}

.accordion__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--duration-base) var(--ease-out);
}

.accordion__panel[data-open="true"] {
  grid-template-rows: 1fr;
}

.accordion__panel-inner {
  overflow: hidden;
}

.accordion__panel-inner > div {
  padding-bottom: var(--space-m);
  max-width: 82ch;
  color: var(--color-secondary);
}

.accordion__panel-inner p + p {
  margin-top: var(--space-xs);
}

/* CTA band --------------------------------------------------------------- */

.cta-band {
  background: var(--color-accent-dark);
  color: var(--color-ink-invert);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: var(--space-xl);
  align-items: center;
  position: relative;
  overflow: hidden;
}

.cta-band::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -120px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(217, 242, 200, 0.16), transparent 70%);
  pointer-events: none;
}

.cta-band h2 {
  color: var(--color-ink-invert);
  font-size: clamp(30px, 3.4vw, 48px);
  line-height: 1.05;
  margin-bottom: var(--space-s);
}

.cta-band p {
  color: rgba(245, 245, 240, 0.72);
  max-width: 56ch;
}

.cta-band__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-s);
  justify-content: flex-end;
  position: relative;
  z-index: 1;
}

/* Notice bar ------------------------------------------------------------- */

.notice {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  padding: var(--space-s) var(--space-m);
  border-radius: var(--radius-m);
  background: var(--color-surface-alt);
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--color-accent-dark);
}

.notice svg {
  width: 18px;
  flex: 0 0 auto;
  margin-top: 3px;
}

/* Definition block ------------------------------------------------------- */

.definition {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-l);
  padding: var(--space-l);
}

.definition__term {
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-2xs);
}

.definition p {
  font-size: 19px;
  line-height: 1.55;
}

/* Illustrations / mockups ------------------------------------------------ */

.mockup {
  position: relative;
  border-radius: var(--radius-l);
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-m);
}

.mockup svg {
  width: 100%;
  display: block;
}

.mockup--plain {
  border: 0;
  box-shadow: none;
  background: transparent;
}

.mockup--float {
  transform: rotate(-0.6deg);
}

.figure {
  margin: var(--space-l) 0;
}

.figure figcaption {
  margin-top: var(--space-xs);
  font-size: var(--fs-micro);
  color: var(--color-secondary);
}

/* Logo / trust strip ----------------------------------------------------- */

.strip {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-m) var(--space-2xl);
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-l);
  border-block: 1px solid var(--color-border);
}

.strip__item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.strip__value {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: -0.01em;
}

.strip__label {
  font-size: 12.5px;
  color: var(--color-secondary);
}

/* Sources list ----------------------------------------------------------- */

.sources {
  list-style: none;
  display: grid;
  gap: var(--space-xs);
  counter-reset: src;
}

.sources li {
  counter-increment: src;
  display: grid;
  grid-template-columns: 28px minmax(0, 1fr);
  gap: var(--space-2xs);
  font-size: 14.5px;
  line-height: 1.55;
  padding-bottom: var(--space-xs);
  border-bottom: 1px solid var(--color-border);
}

.sources li::before {
  content: "[" counter(src) "]";
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-secondary);
  padding-top: 3px;
}

.sources a {
  font-weight: 550;
}

.sources span {
  display: block;
  color: var(--color-secondary);
  font-size: 13px;
}

/* Pagination-like nav ---------------------------------------------------- */

.page-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-m);
  margin-top: var(--space-2xl);
}

.page-nav a {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-m);
  padding: var(--space-m);
  background: var(--color-surface);
  text-decoration: none;
  transition: border-color var(--duration-fast) var(--ease-out);
}

.page-nav a:hover {
  border-color: var(--color-accent);
}

.page-nav span {
  display: block;
  font-size: 12px;
  letter-spacing: var(--ls-eyebrow);
  text-transform: uppercase;
  color: var(--color-secondary);
  font-weight: 700;
  margin-bottom: 6px;
}

.page-nav strong {
  font-family: var(--font-heading);
  font-size: 17px;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.page-nav a:last-child {
  text-align: right;
}