/* ---------- Scroll reveal (progressive enhancement — see js/main.js) ---------- */
/* .reveal is only ever added by JS, so content is fully visible with JS off */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 400ms ease-out, transform 400ms ease-out;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-full);
  font-size: var(--text-body-md);
  font-weight: 600;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: #00554b; }

.btn-secondary {
  background: var(--color-primary-container);
  color: var(--color-on-primary-container);
}
.btn-secondary:hover { background: #9fd3ce; }

.btn-outline {
  background: transparent;
  color: var(--color-on-surface);
  border: 1px solid var(--color-outline);
}
.btn-outline:hover { background: var(--color-surface-container); }

.btn-block { width: 100%; }

/* ---------- Card ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}

/* ---------- Hero ---------- */
.hero {
  padding-block: var(--space-9) var(--space-8);
}

.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: var(--space-7);
}

.hero-eyebrow {
  display: inline-block;
  background: var(--color-primary-container);
  color: var(--color-on-primary-container);
  font-size: var(--text-label-lg);
  font-weight: 600;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}

.hero h1 {
  font-size: var(--text-display-md);
  line-height: var(--lh-display-md);
  color: var(--color-on-surface);
}

.hero .tagline {
  margin-top: var(--space-4);
  font-size: var(--text-body-lg);
  line-height: var(--lh-body-lg);
  color: var(--color-on-surface-variant);
  max-width: 48ch;
}

.hero-actions {
  margin-top: var(--space-6);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.hero-art {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

@media (max-width: 900px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-art { order: -1; max-width: 420px; margin-inline: auto; }
  .hero h1 { font-size: var(--text-headline-lg); line-height: var(--lh-headline-lg); }
}

/* ---------- Stat strip ---------- */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  padding-block: var(--space-6);
}

.stat-item {
  text-align: center;
  padding: var(--space-4);
}

.stat-item .icon-badge { margin-inline: auto; }

.stat-item p {
  margin-top: var(--space-2);
  color: var(--color-on-surface-variant);
  font-size: var(--text-body-md);
}

@media (max-width: 767px) {
  .stat-strip { grid-template-columns: 1fr; }
}

/* ---------- Feature cards ---------- */
.feature-card {
  padding: var(--space-5);
}

.icon-badge {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--color-primary-container);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
}

.icon-badge svg { width: 24px; height: 24px; }

.feature-card h3 {
  font-size: var(--text-title-lg);
  margin-bottom: var(--space-2);
}

.feature-card p {
  color: var(--color-on-surface-variant);
  line-height: var(--lh-body-md);
}

/* ---------- How it works ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  counter-reset: step;
}

.step {
  text-align: center;
  padding-inline: var(--space-3);
}

.step-number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-on-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  margin-inline: auto;
  margin-bottom: var(--space-4);
}

.step h3 { font-size: var(--text-title-lg); margin-bottom: var(--space-2); }
.step p { color: var(--color-on-surface-variant); }

@media (max-width: 767px) {
  .steps { grid-template-columns: 1fr; gap: var(--space-7); }
}

/* ---------- CTA band ---------- */
.cta-band {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  text-align: center;
  margin-inline: var(--space-4);
}

.cta-band h2 { font-size: var(--text-headline-md); }
.cta-band p {
  margin-top: var(--space-3);
  opacity: 0.9;
  max-width: 52ch;
  margin-inline: auto;
}
.cta-band .hero-actions { justify-content: center; margin-top: var(--space-6); }
.cta-band .btn-secondary { background: rgba(255,255,255,0.16); color: var(--color-on-primary); }
.cta-band .btn-secondary:hover { background: rgba(255,255,255,0.26); }
.cta-band .btn-primary { background: var(--color-on-primary); color: var(--color-primary); }
.cta-band .btn-primary:hover { background: #eaf5f3; }

/* ---------- Pricing ---------- */
.pricing-note {
  text-align: center;
  color: var(--color-on-surface-variant);
  font-size: var(--text-label-lg);
  margin-bottom: var(--space-6);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  align-items: stretch;
}

.price-card {
  display: flex;
  flex-direction: column;
  padding: var(--space-6) var(--space-5);
  position: relative;
}

.price-card.is-featured {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.price-card .badge {
  position: absolute;
  top: -12px;
  inset-inline-end: var(--space-5);
  background: var(--color-tertiary);
  color: var(--color-on-tertiary);
  font-size: var(--text-label-lg);
  font-weight: 600;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
}

.price-card h3 { font-size: var(--text-title-lg); }
.price-card .price-sub { color: var(--color-on-surface-variant); margin-top: var(--space-1); }

.price-card .price {
  margin-top: var(--space-4);
  font-size: var(--text-headline-md);
  font-weight: 700;
}

.price-card .price small {
  font-size: var(--text-body-md);
  font-weight: 500;
  color: var(--color-on-surface-variant);
}

.price-card ul {
  margin-top: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex-grow: 1;
}

.price-card li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  color: var(--color-on-surface-variant);
}

.price-card li svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  color: var(--color-success);
}

.price-card li.soon svg { color: var(--color-disabled-text); }
.price-card li.soon { color: var(--color-disabled-text); }

.price-card .btn { margin-top: var(--space-6); }

@media (max-width: 900px) {
  .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin-inline: auto; }
}

/* ---------- Download badges ---------- */
.download-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.download-card {
  text-align: center;
  padding: var(--space-7) var(--space-5);
}

.download-card .icon-badge {
  margin-inline: auto;
  width: 64px;
  height: 64px;
}

.download-card .icon-badge svg { width: 32px; height: 32px; }

.download-card h3 { font-size: var(--text-title-lg); margin-bottom: var(--space-2); }
.download-card p { color: var(--color-on-surface-variant); margin-bottom: var(--space-5); }

.download-card.is-disabled {
  opacity: 0.6;
}

.store-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--color-surface-container-high);
  color: var(--color-on-surface-variant);
  font-size: var(--text-label-lg);
  font-weight: 600;
  cursor: not-allowed;
}

@media (max-width: 900px) {
  .download-grid { grid-template-columns: 1fr; max-width: 420px; margin-inline: auto; }
}

/* ---------- Contact ---------- */
.contact-card {
  max-width: 560px;
  margin-inline: auto;
  text-align: center;
  padding: var(--space-8) var(--space-6);
}

.contact-card .icon-badge {
  margin-inline: auto;
  width: 64px;
  height: 64px;
}
.contact-card .icon-badge svg { width: 32px; height: 32px; }

.contact-email {
  display: inline-block;
  margin-top: var(--space-4);
  font-size: var(--text-headline-sm);
  font-weight: 700;
  color: var(--color-primary);
}

.contact-actions {
  margin-top: var(--space-6);
  display: flex;
  justify-content: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.copy-feedback {
  margin-top: var(--space-3);
  font-size: var(--text-label-lg);
  color: var(--color-success);
  min-height: 1.2em;
}

.help-links {
  margin-top: var(--space-8);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  max-width: 560px;
  margin-inline: auto;
}

.help-links a {
  display: block;
  padding: var(--space-4);
  text-align: center;
  font-weight: 600;
  color: var(--color-on-surface);
  transition: border-color var(--transition-fast), color var(--transition-fast);
}
.help-links a:hover { border-color: var(--color-primary); color: var(--color-primary); }

@media (max-width: 479px) {
  .help-links { grid-template-columns: 1fr; }
}

/* ---------- FAQ (native details/summary) ---------- */
.faq-list { max-width: 720px; margin-inline: auto; display: flex; flex-direction: column; gap: var(--space-3); }

.faq-item {
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  overflow: hidden;
}

.faq-item summary {
  cursor: pointer;
  padding: var(--space-4) var(--space-5);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  list-style: none;
  gap: var(--space-3);
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary .chev {
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.faq-item[open] summary .chev { transform: rotate(180deg); }

.faq-item .faq-answer {
  padding: 0 var(--space-5) var(--space-4);
  color: var(--color-on-surface-variant);
  line-height: var(--lh-body-md);
}

/* ---------- Tutorial guide page ---------- */
.guide-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: var(--space-7);
  align-items: start;
}

.guide-toc {
  position: sticky;
  top: calc(var(--header-height) + var(--space-5));
  border-inline-start: 2px solid var(--color-outline-variant);
  padding-inline-start: var(--space-4);
}

.guide-toc h2 {
  font-size: var(--text-label-lg);
  color: var(--color-on-surface-variant);
  margin-bottom: var(--space-3);
}

.guide-toc ul { display: flex; flex-direction: column; gap: var(--space-2); }
.guide-toc a { color: var(--color-on-surface-variant); font-size: var(--text-body-md); }
.guide-toc a:hover { color: var(--color-primary); }

.guide-section {
  padding-block: var(--space-6);
  border-bottom: 1px solid var(--color-outline-variant);
}
.guide-section:last-child { border-bottom: none; }

.guide-section h2 {
  font-size: var(--text-headline-sm);
  margin-bottom: var(--space-4);
  scroll-margin-top: calc(var(--header-height) + var(--space-3));
}

.guide-section p { color: var(--color-on-surface-variant); line-height: var(--lh-body-lg); margin-bottom: var(--space-3); }

.guide-section ol {
  list-style: decimal;
  padding-inline-start: var(--space-6);
  color: var(--color-on-surface-variant);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

@media (max-width: 900px) {
  .guide-layout { grid-template-columns: 1fr; }
  .guide-toc { position: static; border-inline-start: none; padding-inline-start: 0; border: 1px solid var(--color-outline-variant); border-radius: var(--radius-md); padding: var(--space-4); }
}

/* ---------- Page hero (inner pages) ---------- */
.page-hero {
  padding-block: var(--space-8) var(--space-6);
  text-align: center;
}

.page-hero h1 {
  font-size: var(--text-headline-lg);
  line-height: var(--lh-headline-lg);
}

.page-hero p {
  margin-top: var(--space-3);
  color: var(--color-on-surface-variant);
  font-size: var(--text-body-lg);
  max-width: 56ch;
  margin-inline: auto;
}