/* ==========================================================================
   SECTIONS.CSS — Page Section Layouts
   ==========================================================================
*/
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: radial-gradient(ellipse 80% 60% at 50% 40%, rgba(0, 229, 255, 0.04) 0%, transparent 70%), var(--color-bg-page);
  margin-top: calc(-1 * var(--nav-height));
  padding-top: var(--nav-height);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(30, 42, 53, 0.4) 1px, transparent 1px), linear-gradient(90deg, rgba(30, 42, 53, 0.4) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 0%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 0%, transparent 100%);
  pointer-events: none;
  z-index: var(--z-base);
}

.hero__inner {
  position: relative;
  z-index: var(--z-raised);
  width: 100%;
  padding-block: var(--space-24);
}

.hero__content {
  max-width: 760px;
}

.hero__label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
  padding: var(--space-2) var(--space-4);
  background-color: var(--color-accent-primary-bg);
  border: 1px solid rgba(0, 229, 255, 0.2);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent-primary);
}

.hero__label-dot {
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background-color: var(--color-accent-primary);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero__headline {
  font-size: clamp(var(--text-4xl), 6vw, var(--text-6xl));
  font-weight: var(--weight-extrabold);
  line-height: var(--leading-tight);
  letter-spacing: -0.03em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-6);
}

.hero__headline-accent {
  color: var(--color-accent-primary);
}

.hero__subheadline {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-10);
  max-width: 58ch;
}

.hero__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

/* --------------------------------------------------------------------------
   2. CREDIBILITY STRIP (unchanged)
   -------------------------------------------------------------------------- */
.credibility-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-6);
}

.credibility-strip__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.credibility-strip__item::before {
  content: '';
  display: block;
  width: 5px;
  height: 5px;
  border-radius: var(--radius-full);
  background-color: var(--color-accent-primary);
  flex-shrink: 0;
}

.credibility-strip__sep {
  width: 1px;
  height: 14px;
  background-color: var(--color-border-light);
}

@media (max-width: 480px) {
  .credibility-strip__sep { display: none; }
  .credibility-strip { gap: var(--space-3); }
}

/* --------------------------------------------------------------------------
   3. SUBJECT CARDS SECTION (unchanged)
   -------------------------------------------------------------------------- */
.subjects-section {
  padding-block: var(--space-24);
  background-color: var(--color-bg-page);
}

.subjects-section::before {
  content: '';
  display: block;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-border), transparent);
  margin-bottom: var(--space-24);
}

/* --------------------------------------------------------------------------
   4. FEATURE CARDS SECTION (unchanged)
   -------------------------------------------------------------------------- */
.features-section {
  padding-block: var(--space-24);
  background-color: var(--color-bg-page);
  position: relative;
}

.features-section::before {
  content: '';
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-border), transparent);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

@media (max-width: 768px) {
  .features-grid { grid-template-columns: 1fr; }
}

/* --------------------------------------------------------------------------
   5. FOOTER (unchanged)
   -------------------------------------------------------------------------- */
.footer {
  background-color: var(--color-bg-surface);
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-16) var(--space-8);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer__brand-name {
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.footer__brand-description {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
  max-width: 38ch;
}

.footer__col-title {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  list-style: none;
}

.footer__links a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer__links a:hover {
  color: var(--color-text-primary);
}

.footer__bottom {
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-4);
}

.footer__copyright,
.footer__disclaimer {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  line-height: var(--leading-relaxed);
  max-width: 100%;
  text-align: left;
}

.footer__disclaimer {
  max-width: 52ch;
}

@media (max-width: 768px) {
  .footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  .footer__brand { grid-column: auto; }
  .footer__bottom { flex-direction: column; }
  .footer__disclaimer { text-align: left; }
}

/* --------------------------------------------------------------------------
   6. REVISION WORKFLOW SECTION — timeline style (NEW)
   -------------------------------------------------------------------------- */
.revision-workflow-section {
  padding-block: var(--space-16);
  background-color: var(--color-bg-page);
  border-top: 1px solid var(--color-border);
}

.workflow-card {
  margin-bottom: var(--space-10);
  padding-left: var(--space-2);
}

.workflow-card:last-child {
  margin-bottom: 0;
}

.workflow-card__title {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-primary);
  margin-bottom: var(--space-5);
}

.workflow-steps {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 0;
  position: relative;
}

.workflow-steps::before {
  content: '';
  position: absolute;
  top: 12px;
  left: 9px;
  bottom: 12px;
  width: 1px;
  background: var(--workflow-line-color);
}

.workflow-step {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  padding-bottom: var(--space-4);
  position: relative;
}

.workflow-step:last-child {
  padding-bottom: 0;
}

.workflow-step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  font-size: 0;
  color: transparent;
}

.workflow-step__num::before {
  content: '';
  display: block;
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background-color: var(--color-border-light);
  border: 1px solid var(--color-border-light);
  transition: background-color var(--transition-fast);
}

.workflow-step div {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  padding-top: 2px;
}

.workflow-step strong {
  color: var(--color-text-primary);
  font-weight: var(--weight-medium);
}

/* No left border – prevents content shift */
.revision-workflow-section .container--narrow {
  border-left: none;
  padding-left: var(--container-padding);
}
@media (max-width: 768px) {
  .revision-workflow-section .container--narrow {
    border-left: none;
    padding-left: var(--container-padding);
  }
}

/* --------------------------------------------------------------------------
   7. GENERAL TIPS & RESOURCES SECTION — borderless, single column
   -------------------------------------------------------------------------- */
.general-tips-section {
  padding-block: var(--space-16);
  background-color: var(--color-bg-page);
  border-top: 1px solid var(--color-border);
}

.general-tips-section .container.container--narrow {
  max-width: var(--container-narrow);
  display: block;
}

.tips-card,
.resources-card {
  background-color: transparent;
  border: none;
  border-radius: 0;
  padding: 0;
  margin-bottom: var(--space-8);
}

.tips-card:last-child,
.resources-card:last-child {
  margin-bottom: 0;
}

.tips-card__title,
.resources-card__title {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent-primary);
  margin-bottom: var(--space-4);
  padding-bottom: 0;
  border-bottom: none;
}

.resources-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.resources-list li {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
  padding-left: var(--space-4);
  border-left: 2px solid var(--color-border-light);
  transition: border-color var(--transition-fast);
}

.resources-list li:hover {
  border-left-color: var(--color-accent-primary);
}

.resources-list a {
  color: var(--color-accent-primary);
  text-decoration: none;
}

.resources-list a:hover {
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   8. DONATION BLOCK
   -------------------------------------------------------------------------- */
.donation-block {
  padding-block: var(--space-8);
  background-color: var(--color-bg-surface);
  border-top: 1px solid var(--color-border);
}

.donation-block__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  text-align: center;
}

.donation-block__text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin: 0;
  max-width: none;
}

@media (max-width: 640px) {
  .donation-block__inner {
    flex-direction: column;
    justify-content: center;
  }
}
/* Ensure bold text inside resource lists is actually bold */
.resources-list strong {
  font-weight: 700 !important;
  color: var(--color-text-primary) !important;
}