/* Features page styles — scoped to .features-main and page-owned components */

.features-main {
  width: 100%;
  overflow-x: hidden;
}

.features-accent-amber {
  color: var(--accent-amber);
}

.features-section {
  padding-block: var(--space-7);
}

.features-section--surface {
  background: var(--bg-surface);
  border-block: 1px solid var(--border-steel);
}

.features-section__heading {
  margin-block-end: var(--space-4);
  text-align: left;
}

.features-section__intro {
  max-width: 720px;
  margin-block-end: var(--space-5);
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.6;
}

.features-section__intro--center {
  margin-inline: auto;
  text-align: center;
}

/* Hero */
.features-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: var(--space-6);
  align-items: center;
  padding-block: var(--space-8) var(--space-7);
  background: var(--bg-base);
  position: relative;
}

.features-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
  z-index: 0;
}

.features-hero > * {
  position: relative;
  z-index: 1;
}

.features-hero__text {
  min-width: 0;
  max-width: 600px;
}

.features-hero__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.1;
  margin-block-end: var(--space-4);
  text-align: left;
}

.features-hero__lead {
  max-width: 65ch;
  margin-block-end: var(--space-4);
  font-size: 1.125rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.85);
}

.features-hero__details {
  margin-block-end: var(--space-5);
}

.features-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.features-hero__actions .btn {
  flex-shrink: 0;
}

.features-hero__media {
  min-width: 0;
  width: 100%;
}

.features-hero__media img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border: 1px solid var(--border-steel);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-elevation);
  filter: saturate(0.85) contrast(1.05);
}

/* Basics grid */
.features-basics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
  align-items: stretch;
}

.features-basics-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  min-width: 0;
  background: var(--surface-gradient);
  border: 1px solid var(--border-steel);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-elevation);
  padding: var(--space-4);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.features-basics-card:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 4px 16px rgba(0, 229, 255, 0.15), var(--shadow-elevation);
  transform: translateY(-2px);
}

.features-basics-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
  color: var(--accent-amber);
  transition: transform var(--transition-fast);
}

.features-basics-card:hover .features-basics-card__icon {
  transform: scale(1.1);
}

.features-basics-card--rust .features-basics-card__icon {
  color: var(--accent-rust);
}

.features-basics-card--amber .features-basics-card__icon {
  color: var(--accent-amber);
}

.features-basics-card--cyan .features-basics-card__icon {
  color: var(--accent-cyan);
}

.features-basics-card__title {
  font-size: 1.25rem;
  margin-block-end: 0;
}

.features-basics-card__text {
  max-width: 45ch;
  margin-block-end: 0;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.6;
}

.features-basics-card__list {
  margin-block-start: auto;
  margin-block-end: 0;
}

/* Dungeon walkthroughs */
.features-dungeon-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.features-dungeon {
  min-width: 0;
  padding-block-end: var(--space-5);
  border-block-end: 1px solid var(--border-steel);
}

.features-dungeon:last-child {
  padding-block-end: 0;
  border-block-end: none;
}

.features-dungeon__title {
  margin-block-end: var(--space-3);
  transition: color var(--transition-fast), text-shadow var(--transition-fast);
}

.features-dungeon__title:hover {
  color: var(--accent-cyan);
  text-shadow: 0 0 8px rgba(0, 229, 255, 0.4);
}

.features-dungeon__text {
  max-width: 75ch;
  margin-block-end: var(--space-3);
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.6;
}

.features-dungeon__steps {
  max-width: 65ch;
  margin-block-end: 0;
}

/* Tier list */
.features-tier-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  max-width: 700px;
  margin-inline: auto;
}

.features-tier-card {
  display: flex;
  gap: var(--space-4);
  min-width: 0;
  background: var(--surface-gradient);
  border: 1px solid var(--border-steel);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-elevation);
  padding: var(--space-4);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.features-tier-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.6), var(--shadow-elevation);
}

.features-tier-card--s {
  border-color: rgba(255, 179, 0, 0.5);
}

.features-tier-card--s:hover {
  border-color: var(--accent-amber);
  box-shadow: 0 0 16px rgba(255, 179, 0, 0.25), var(--shadow-elevation);
}

.features-tier-card--a {
  border-color: rgba(0, 229, 255, 0.5);
}

.features-tier-card--a:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 16px rgba(0, 229, 255, 0.25), var(--shadow-elevation);
}

.features-tier-card--b {
  border-color: rgba(255, 109, 0, 0.5);
}

.features-tier-card--b:hover {
  border-color: var(--accent-rust);
  box-shadow: 0 0 16px rgba(255, 109, 0, 0.25), var(--shadow-elevation);
}

.features-tier-card--c {
  border-color: rgba(255, 255, 255, 0.25);
}

.features-tier-card--c:hover {
  border-color: rgba(255, 255, 255, 0.5);
  box-shadow: 0 0 16px rgba(255, 255, 255, 0.15), var(--shadow-elevation);
}

.features-tier-card__badge {
  flex-shrink: 0;
}

.features-tier-card__content {
  min-width: 0;
  flex: 1 1 auto;
}

.features-tier-card__title {
  margin-block-end: var(--space-2);
  font-size: 1.25rem;
}

.features-tier-card__text {
  max-width: 50ch;
  margin-block-end: var(--space-3);
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.6;
}

.features-tier-card__items {
  margin-block-end: 0;
}

/* Tips grid */
.features-tips-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
  align-items: stretch;
}

.features-tip-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  min-width: 0;
  background: var(--surface-gradient);
  border: 1px solid var(--border-steel);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-elevation);
  padding: var(--space-4);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.features-tip-card:hover {
  border-color: var(--accent-amber);
  box-shadow: 0 4px 16px rgba(255, 179, 0, 0.15), var(--shadow-elevation);
  transform: translateY(-2px);
}

.features-tip-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
  color: var(--accent-amber);
}

.features-tip-card--cyan .features-tip-card__icon {
  color: var(--accent-cyan);
}

.features-tip-card--rust .features-tip-card__icon {
  color: var(--accent-rust);
}

.features-tip-card__title {
  font-size: 1.25rem;
  margin-block-end: 0;
}

.features-tip-card__text {
  max-width: 45ch;
  margin-block-end: 0;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.6;
}

.features-tip-card__list {
  margin-block-start: auto;
  margin-block-end: 0;
}

/* Gallery */
.features-gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4);
  align-items: start;
}

.features-gallery-item {
  min-width: 0;
  margin-block-end: 0;
}

.features-gallery-item__media {
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--border-steel);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-elevation);
  background: var(--bg-surface-deep);
}

.features-gallery-item__media img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
  transition: transform var(--transition-fast);
}

.features-gallery-item:hover .features-gallery-item__media img {
  transform: scale(1.05);
}

.features-gallery-item__caption {
  max-width: 30ch;
  margin-block-start: var(--space-2);
  margin-inline: auto;
  text-align: center;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.7);
}

/* Mistakes */
.features-mistakes-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.features-mistake {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  min-width: 0;
  padding: var(--space-4);
  background: var(--surface-gradient);
  border: 1px solid var(--border-steel);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-elevation);
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.features-mistake:hover {
  background: #1F242E;
  border-color: rgba(255, 255, 255, 0.2);
}

.features-mistake__icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(255, 109, 0, 0.12);
  color: var(--accent-rust);
}

.features-mistake__content {
  min-width: 0;
  flex: 1 1 auto;
}

.features-mistake__title {
  margin-block-end: var(--space-2);
  font-size: 1.25rem;
}

.features-mistake__text {
  max-width: 70ch;
  margin-block-end: var(--space-3);
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.6;
}

.features-mistake__list {
  margin-block-end: 0;
}

/* CTA */
.features-cta {
  padding-block: var(--space-8);
  background: var(--bg-base);
  position: relative;
}

.features-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
  z-index: 0;
}

.features-cta .container {
  position: relative;
  z-index: 1;
}

.features-cta__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  max-width: 600px;
  margin-inline: auto;
  text-align: center;
}

.features-cta__title {
  margin-block-end: 0;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
}

.features-cta__text {
  max-width: 50ch;
  margin-block-end: 0;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.6;
}

.features-cta__details {
  margin-block-end: 0;
}

.features-cta__button {
  margin-block-start: var(--space-2);
  box-shadow: 0 0 24px rgba(255, 179, 0, 0.25);
}

.features-cta__button:hover {
  box-shadow: 0 0 32px rgba(0, 229, 255, 0.4);
}

/* Responsive */
@media (max-width: 1024px) {
  .features-hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: var(--space-5);
  }

  .features-basics-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .features-section {
    padding-block: var(--space-6);
  }

  .features-hero {
    grid-template-columns: 1fr;
    gap: var(--space-5);
    padding-block: var(--space-6) var(--space-5);
  }

  .features-hero__text {
    max-width: 100%;
    text-align: center;
  }

  .features-hero__title {
    text-align: center;
  }

  .features-hero__lead {
    margin-inline: auto;
    text-align: center;
  }

  .features-hero__details {
    text-align: left;
  }

  .features-hero__actions {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }

  .features-hero__actions .btn {
    width: 100%;
  }

  .features-hero__media {
    width: 100%;
  }

  .features-basics-grid {
    grid-template-columns: 1fr;
  }

  .features-basics-card {
    text-align: center;
    align-items: center;
  }

  .features-basics-card__text {
    max-width: 100%;
  }

  .features-basics-card__list {
    text-align: left;
    width: 100%;
  }

  .features-dungeon__text {
    max-width: 100%;
  }

  .features-dungeon__steps {
    max-width: 100%;
  }

  .features-tier-card {
    flex-direction: column;
    gap: var(--space-3);
  }

  .features-tier-card__badge {
    align-self: flex-start;
  }

  .features-tier-card__text {
    max-width: 100%;
  }

  .features-tips-grid {
    grid-template-columns: 1fr;
  }

  .features-tip-card {
    text-align: center;
    align-items: center;
  }

  .features-tip-card__text {
    max-width: 100%;
  }

  .features-tip-card__list {
    text-align: left;
    width: 100%;
  }

  .features-gallery-grid {
    grid-template-columns: 1fr;
  }

  .features-gallery-item__caption {
    max-width: 100%;
  }

  .features-mistake {
    flex-direction: column;
    gap: var(--space-3);
  }

  .features-mistake__text {
    max-width: 100%;
  }
}

@media (max-width: 480px) {
  .features-section {
    padding-block: var(--space-5);
  }

  .features-hero__title {
    font-size: 1.75rem;
  }

  .features-hero__lead {
    font-size: 1rem;
  }

  .features-basics-card,
  .features-tip-card,
  .features-mistake {
    padding: var(--space-3);
  }

  .features-tier-card {
    padding: var(--space-3);
  }
}