/* ==========================================================================
   BRAWL SECTION SPECIFIC STYLES
   Scope: /brawl/ (异卷大乱斗 · 早期构想展示)
   Inherits root tokens & base resets from /styles.css
   ========================================================================== */

/* Universal Box-Sizing & Responsive Image Constraints */
*, *::before, *::after {
  box-sizing: border-box;
}

.brawl-body img {
  max-width: 100%;
  height: auto;
}

/* Header badges and return links */
.site-header__brand-text {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
}

.site-header__branch-badge {
  font-size: var(--t-micro, 0.75rem);
  font-family: var(--font-ancient);
  letter-spacing: 0.1em;
  color: var(--seal);
  border: 1px solid var(--seal);
  padding: 0.1rem 0.4rem;
  border-radius: 2px;
  line-height: 1.2;
}

.site-header__back-main,
.site-header__menu-return {
  color: var(--seal) !important;
  font-weight: 500;
  transition: opacity 0.2s var(--ease);
}

.site-header__back-main:hover,
.site-header__menu-return:hover {
  opacity: 0.8;
  text-decoration: underline;
}

/* Common Section Layout */
.brawl-section {
  padding-block: 3.5rem 2.5rem;
  border-bottom: 1px solid var(--line);
}

.brawl-section:last-of-type {
  border-bottom: none;
}

.brawl-section__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.8rem;
}

.brawl-eyebrow {
  font-family: var(--font-ancient);
  font-size: var(--t-micro, 0.75rem);
  letter-spacing: 0.18em;
  color: var(--seal);
  margin-bottom: 0.35rem;
  text-transform: uppercase;
}

.brawl-section__title {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  font-weight: 600;
  color: var(--ink);
  letter-spacing: var(--ls-h2, 0.14em);
  margin: 0;
}

.brawl-section__index {
  font-family: var(--font-ancient);
  font-size: var(--t-micro, 0.75rem);
  color: var(--ink-faint);
  letter-spacing: 0.15em;
  white-space: nowrap;
}

.brawl-section__desc {
  max-width: 48rem;
  color: var(--ink-muted);
  font-size: var(--t-body, 1.02rem);
  line-height: var(--lh-body, 1.84);
  margin-bottom: 2rem;
}

/* Section 01: Intro */
.brawl-intro {
  padding-top: 1rem;
}

.brawl-intro__head {
  margin-bottom: 2rem;
}

.brawl-title {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin: 0.5rem 0 1rem;
}

.brawl-title__sub {
  font-family: var(--font-ancient);
  font-size: 1.15rem;
  color: var(--seal);
  letter-spacing: 0.2em;
}

.brawl-title__main {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  letter-spacing: 0.12em;
  font-weight: 700;
  color: var(--ink);
}

.brawl-tagline {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.5vw, 1.45rem);
  color: var(--ink-2);
  letter-spacing: 0.08em;
  margin-bottom: 1.25rem;
}

.brawl-status-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.brawl-chip {
  font-size: var(--t-micro, 0.75rem);
  font-family: var(--font-ancient);
  padding: 0.2rem 0.6rem;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  color: var(--ink-muted);
  letter-spacing: 0.08em;
}

.brawl-lead {
  max-width: 48rem;
  margin-bottom: 2.5rem;
}

.brawl-hero-plate {
  margin: 2rem auto 1rem;
  max-width: 100%;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  padding: 0.5rem;
  box-shadow: var(--paper-edge);
}

.brawl-hero-plate img {
  width: 100%;
  height: auto;
  aspect-ratio: 1100 / 551;
  display: block;
  object-fit: cover;
}

.brawl-hero-plate figcaption {
  font-size: var(--t-micro, 0.75rem);
  color: var(--ink-faint);
  font-family: var(--font-ancient);
  text-align: center;
  padding: 0.6rem 0 0.2rem;
  letter-spacing: 0.1em;
}

/* Section 02: Encounters */
.brawl-encounters-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 860px) {
  .brawl-encounters-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.brawl-card {
  box-sizing: border-box;
  max-width: 100%;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  padding: clamp(1rem, 3vw, 1.5rem);
  display: flex;
  flex-direction: column;
  box-shadow: var(--paper-edge);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.brawl-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--paper-edge-deep);
}

.brawl-card__header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 0.75rem;
  border-bottom: 1px dashed var(--line);
  padding-bottom: 0.5rem;
}

.brawl-card__tag {
  font-family: var(--font-ancient);
  font-size: var(--t-micro, 0.75rem);
  color: var(--seal);
  letter-spacing: 0.1em;
}

.brawl-card__title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--ink);
  margin: 0;
}

.brawl-card__question {
  margin: 0.5rem 0 1rem;
  padding: 0.6rem 0.8rem;
  background: var(--bg-deep);
  border-left: 3px solid var(--seal);
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.6;
}

.brawl-card__text {
  font-size: var(--t-note, 0.86rem);
  line-height: 1.75;
  color: var(--ink-2);
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.brawl-card__figures {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-top: auto;
}

@media (min-width: 480px) {
  .brawl-card__figures {
    grid-template-columns: repeat(2, 1fr);
  }
}

.brawl-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--bg);
  padding: 0.35rem;
}

.brawl-figure img {
  width: 100%;
  height: auto;
  aspect-ratio: 760 / 474;
  display: block;
  object-fit: cover;
}

.brawl-figure figcaption {
  font-size: 0.7rem;
  font-family: var(--font-ancient);
  color: var(--ink-faint);
  text-align: center;
  padding-top: 0.35rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.brawl-card--textonly {
  border-style: dashed;
  background: var(--bg);
}

.brawl-card__meta-note {
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.72rem;
  font-family: var(--font-ancient);
  color: var(--ink-faint);
}

/* Section 03: Realms */
.brawl-realms-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

@media (min-width: 640px) {
  .brawl-realms-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1100px) {
  .brawl-realms-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.brawl-realm-card {
  border: 1px solid var(--line);
  background: var(--bg-soft);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
}

.brawl-realm-card__head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.brawl-realm-seal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.2rem;
  height: 2.2rem;
  border: 1.5px solid var(--seal);
  color: var(--seal);
  font-family: var(--font-ancient);
  font-size: 1.15rem;
  font-weight: 600;
  box-shadow: var(--seal-press);
  background: var(--bg-deep);
}

.brawl-realm-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--ink);
  margin: 0;
}

.brawl-realm-motif {
  font-family: var(--font-ancient);
  font-size: 0.72rem;
  color: var(--ink-faint);
  margin: 0;
}

.brawl-realm-rule {
  font-size: 0.8rem;
  color: var(--ink-muted);
  margin: 0.5rem 0;
  line-height: 1.5;
  border-bottom: 1px solid var(--line);
  padding-bottom: 0.5rem;
}

.brawl-realm-desc {
  font-size: 0.84rem;
  color: var(--ink-2);
  line-height: 1.7;
  margin-bottom: 1rem;
  flex-grow: 1;
}

.brawl-realm-keywords {
  font-family: var(--font-ancient);
  font-size: 0.75rem;
  color: var(--seal);
  letter-spacing: 0.12em;
  margin-top: auto;
}

.brawl-mechanism-note {
  border: 1px solid var(--line);
  background: var(--bg-soft);
  padding: 1.25rem 1.5rem;
  margin-top: 1rem;
}

.brawl-mechanism-eyebrow {
  font-family: var(--font-ancient);
  font-size: 0.8rem;
  color: var(--seal);
  letter-spacing: 0.1em;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

/* Section 04: Fragments */
.brawl-keyframes-strip {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

@media (min-width: 600px) {
  .brawl-keyframes-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .brawl-keyframes-strip {
    grid-template-columns: repeat(5, 1fr);
  }
}

.brawl-keyframe {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  padding: 0.5rem;
  display: flex;
  flex-direction: column;
}

.brawl-keyframe img {
  width: 100%;
  height: auto;
  aspect-ratio: 760 / 474;
  display: block;
  object-fit: cover;
}

.brawl-keyframe:nth-child(3) img {
  aspect-ratio: 720 / 360;
}

.brawl-keyframe figcaption {
  padding-top: 0.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  flex-grow: 1;
}

.brawl-keyframe__num {
  font-family: var(--font-ancient);
  font-size: 0.72rem;
  color: var(--seal);
}

.brawl-keyframe__title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
}

.brawl-keyframe__ai-badge {
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--ink-muted);
  letter-spacing: 0.02em;
  line-height: 1.4;
  margin: 0.2rem 0;
}

.brawl-keyframe__desc {
  font-size: 0.82rem;
  color: var(--ink-muted);
  line-height: 1.5;
}

.brawl-section__ai-intro {
  margin-top: -0.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--ink-muted);
  letter-spacing: 0.04em;
  border-left: 2px solid var(--seal);
  padding-left: 0.75rem;
}

.brawl-visual-discipline {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 1.5rem;
}

@media (min-width: 768px) {
  .brawl-visual-discipline {
    grid-template-columns: repeat(2, 1fr);
  }
}

.brawl-discipline-card {
  border: 1px solid var(--line);
  background: var(--bg-soft);
  padding: 1.25rem;
}

.brawl-discipline-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 0.5rem;
}

.brawl-discipline-card p {
  font-size: var(--t-note, 0.86rem);
  color: var(--ink-2);
  line-height: 1.7;
  margin: 0;
}

/* Section 05: Coda Box */
.brawl-coda-box {
  border: 1px solid var(--line-strong);
  background: var(--bg-soft);
  padding: 2.5rem 1.5rem;
  text-align: center;
  box-shadow: var(--paper-edge-deep);
  max-width: 44rem;
  margin: 1rem auto;
}

.brawl-coda-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--ink);
  margin: 0.5rem 0 1rem;
}

.brawl-coda-desc {
  font-size: var(--t-body, 1.02rem);
  color: var(--ink-2);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.brawl-coda-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1.5rem;
  background: var(--seal);
  color: #fff !important;
  font-family: var(--font-display);
  font-size: 1.05rem;
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
  box-shadow: var(--seal-press);
}

.brawl-coda-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* Focus and Reduced Motion */
:focus-visible {
  outline: 2px solid var(--seal);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .brawl-card,
  .brawl-coda-btn {
    transition: none !important;
    transform: none !important;
  }
}