/* ========== CSS Variables ========== */
:root {
  --color-deep-brown: #4E342E;
  --color-milk-white: #FFFDE7;
  --color-latte: #D7CCC8;
  --color-mint-green: #A5D6A7;
  --color-dark-brown: #3E2723;
  --color-medium-brown: #6D4C41;
  --color-light-cream: #FFF8E1;
  --color-cream-bg: #FDF6EC;
  --color-text-primary: #3E2723;
  --color-text-secondary: #6D4C41;
  --color-text-muted: #8D6E63;
  --color-border: #D7CCC8;
  --color-card-bg: #FFFFFF;
  --color-section-alt: #FAF3E6;
  --color-accent-hover: #81C784;
  --color-cta-bg: #4E342E;
  --color-cta-text: #FFFDE7;
  --color-cta-hover: #6D4C41;
  --color-mint-bg: #E8F5E9;
  --color-star: #FFB300;
  --color-overlay: rgba(62, 39, 35, 0.6);

  --font-serif: 'Georgia', 'Noto Serif SC', 'STSong', serif;
  --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --font-mono: 'Consolas', 'Courier New', 'Source Code Pro', monospace;

  --shadow-sm: 0 2px 8px rgba(62, 39, 35, 0.08);
  --shadow-md: 0 4px 16px rgba(62, 39, 35, 0.12);
  --shadow-lg: 0 8px 32px rgba(62, 39, 35, 0.15);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: all 0.3s ease;

  --max-width: 1200px;
  --header-height: 72px;
}

/* ========== Reset & Base ========== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text-primary);
  background-color: var(--color-light-cream);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-deep-brown);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--color-medium-brown);
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ========== Utility Classes ========== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.prose {
  max-width: 800px;
  margin: 0 auto;
}

.section-alt {
  background-color: var(--color-section-alt);
}

.section-mint {
  background-color: var(--color-mint-bg);
}

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

/* ========== Header & Navigation ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-card-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  height: var(--header-height);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-deep-brown);
}

.header-logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: cover;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-deep-brown);
  background-color: var(--color-section-alt);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  background-color: var(--color-cta-bg);
  color: var(--color-cta-text) !important;
  border-radius: var(--radius-xl);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
}

.nav-cta:hover {
  background-color: var(--color-cta-hover);
  color: var(--color-cta-text) !important;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Mobile hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-deep-brown);
  border-radius: 2px;
  transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ========== Hero - Home Page ========== */
.hero {
  position: relative;
  overflow: hidden;
}

.hero-home {
  min-height: 560px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero-subpage {
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 0;
}

.hero-home .hero-bg {
  background-image: url('../img/header.webp');
}

.hero-guide .hero-bg {
  background-image: url('../img/screenshot-01.webp');
}

.hero-story .hero-bg {
  background-image: url('../img/screenshot-02.webp');
}

.hero-characters .hero-bg {
  background-image: url('../img/screenshot-03.webp');
}

.hero-faq .hero-bg {
  background-image: url('../img/header.webp');
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(62, 39, 35, 0.85), rgba(62, 39, 35, 0.6), rgba(165, 214, 167, 0.15));
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 60px 24px;
}

.hero-home .hero-content {
  padding: 100px 24px 80px;
}

.hero-title-main {
  font-family: var(--font-serif);
  font-size: 3.2rem;
  font-weight: 800;
  color: var(--color-milk-white);
  margin-bottom: 16px;
  line-height: 1.2;
  letter-spacing: 0.02em;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: rgba(255, 253, 231, 0.9);
  margin-bottom: 32px;
  font-weight: 400;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--color-milk-white);
  margin-bottom: 8px;
}

.hero-desc {
  font-size: 1.1rem;
  color: rgba(255, 253, 231, 0.85);
  max-width: 600px;
  margin: 0 auto;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 40px;
  background-color: var(--color-mint-green);
  color: var(--color-deep-brown);
  border-radius: var(--radius-xl);
  font-size: 1.15rem;
  font-weight: 700;
  transition: var(--transition);
  box-shadow: var(--shadow-md);
}

.hero-cta:hover {
  background-color: var(--color-accent-hover);
  color: var(--color-deep-brown);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ========== Sections ========== */
.section {
  padding: 72px 24px;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-deep-brown);
  margin-bottom: 12px;
}

.section-header p {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  max-width: 650px;
  margin: 0 auto;
}

/* Content section title (sub-pages, uses h2) */
.content-section h2.page-title {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-deep-brown);
  margin-bottom: 24px;
  text-align: center;
}

.content-section {
  padding: 60px 24px;
}

.content-section p {
  margin-bottom: 20px;
  color: var(--color-text-secondary);
  line-height: 1.8;
  font-size: 1.02rem;
}

.content-section h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-deep-brown);
  margin-top: 40px;
  margin-bottom: 16px;
}

/* ========== Feature Cards ========== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.feature-card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-mint-green);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background-color: var(--color-mint-bg);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}

.feature-card h3 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-deep-brown);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* ========== Screenshot Gallery ========== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}

.gallery-item {
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
  border: 2px solid transparent;
  background-color: var(--color-card-bg);
}

.gallery-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-mint-green);
}

.gallery-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

/* ========== Reviews ========== */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.review-card {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.review-stars {
  color: var(--color-star);
  font-size: 1.1rem;
  margin-bottom: 12px;
  letter-spacing: 2px;
}

.review-text {
  font-size: 0.98rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
  font-style: italic;
}

.review-author {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-weight: 600;
}

/* ========== CTA Banner (Home only) ========== */
.cta-banner {
  background: linear-gradient(135deg, var(--color-deep-brown), var(--color-dark-brown));
  padding: 64px 24px;
  text-align: center;
}

.cta-banner h2 {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-milk-white);
  margin-bottom: 12px;
}

.cta-banner p {
  font-size: 1.1rem;
  color: rgba(255, 253, 231, 0.85);
  margin-bottom: 28px;
}

.cta-banner .hero-cta {
  background-color: var(--color-mint-green);
  color: var(--color-deep-brown);
}

/* ========== Game Info Table (Guide) ========== */
.info-table {
  width: 100%;
  border-collapse: collapse;
  margin: 32px 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.info-table th,
.info-table td {
  padding: 14px 20px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.info-table th {
  background-color: var(--color-deep-brown);
  color: var(--color-milk-white);
  font-weight: 600;
  font-size: 0.95rem;
  width: 30%;
}

.info-table td {
  background-color: var(--color-card-bg);
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

/* ========== Story Timeline ========== */
.story-chapter {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--color-mint-green);
}

.story-chapter h3 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-deep-brown);
  margin-bottom: 12px;
}

.story-chapter p {
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 12px;
}

/* ========== Character Cards ========== */
.char-card {
  display: flex;
  gap: 28px;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
  align-items: flex-start;
}

.char-avatar {
  flex-shrink: 0;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background-color: var(--color-latte);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--color-deep-brown);
  overflow: hidden;
}

.char-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.char-info {
  flex: 1;
}

.char-info h3 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-deep-brown);
  margin-bottom: 6px;
}

.char-role {
  display: inline-block;
  background-color: var(--color-mint-bg);
  color: var(--color-medium-brown);
  padding: 4px 14px;
  border-radius: var(--radius-xl);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 14px;
}

.char-info p {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ========== FAQ Accordion ========== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 20px 24px;
  text-align: left;
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-deep-brown);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: var(--transition);
}

.faq-question:hover {
  background-color: var(--color-section-alt);
}

.faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  font-size: 1.2rem;
  color: var(--color-deep-brown);
  transition: var(--transition);
  line-height: 24px;
  text-align: center;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer-inner {
  padding: 0 24px 20px;
  color: var(--color-text-secondary);
  font-size: 0.98rem;
  line-height: 1.8;
}

/* ========== Lightbox ========== */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background-color: rgba(0, 0, 0, 0.9);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.lightbox.active {
  display: flex;
}

.lightbox img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 30px;
  font-size: 2rem;
  color: #fff;
  cursor: pointer;
  background: none;
  border: none;
  z-index: 1;
  transition: var(--transition);
}

.lightbox-close:hover {
  color: var(--color-mint-green);
}

/* ========== Breadcrumb ========== */
.breadcrumb {
  padding: 16px 24px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.breadcrumb a {
  color: var(--color-text-muted);
}

.breadcrumb a:hover {
  color: var(--color-deep-brown);
}

.breadcrumb span {
  margin: 0 8px;
  color: var(--color-latte);
}

/* ========== Guides content styles ========== */
.tip-box {
  background-color: var(--color-mint-bg);
  border-left: 4px solid var(--color-mint-green);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 20px 24px;
  margin: 24px 0;
}

.tip-box p {
  margin-bottom: 0;
  color: var(--color-text-secondary);
}

.tip-box strong {
  color: var(--color-deep-brown);
}

.keyword-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0;
}

.keyword-tag {
  display: inline-block;
  background-color: var(--color-card-bg);
  border: 1px solid var(--color-border);
  padding: 6px 14px;
  border-radius: var(--radius-xl);
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
}

/* ========== Footer ========== */
.site-footer {
  background-color: var(--color-dark-brown);
  padding: 24px;
  text-align: center;
}

.site-footer p {
  color: rgba(255, 253, 231, 0.6);
  font-size: 0.9rem;
}

/* ========== Responsive: 768px ========== */
@media (max-width: 768px) {
  .hero-title-main {
    font-size: 2.2rem;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-home {
    min-height: 420px;
  }

  .hero-subpage {
    min-height: 240px;
  }

  .section {
    padding: 48px 20px;
  }

  .content-section {
    padding: 48px 20px;
  }

  .section-header h2 {
    font-size: 1.8rem;
  }

  .content-section h2.page-title {
    font-size: 1.8rem;
  }

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

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

  .char-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .info-table th,
  .info-table td {
    padding: 12px 14px;
    font-size: 0.88rem;
  }

  /* Mobile nav */
  .hamburger {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-card-bg);
    flex-direction: column;
    align-items: stretch;
    padding: 24px;
    gap: 4px;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    z-index: 999;
  }

  .nav-links.active {
    transform: translateX(0);
  }

  .nav-links a {
    padding: 14px 20px;
    font-size: 1.05rem;
    border-radius: var(--radius-sm);
  }

  .nav-cta {
    margin-top: 8px;
    justify-content: center;
  }
}

/* ========== Responsive: 480px ========== */
@media (max-width: 480px) {
  .hero-title-main {
    font-size: 1.8rem;
  }

  .hero-title {
    font-size: 1.6rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-desc {
    font-size: 0.95rem;
  }

  .hero-home {
    min-height: 360px;
  }

  .hero-subpage {
    min-height: 200px;
  }

  .hero-cta {
    padding: 14px 28px;
    font-size: 1rem;
  }

  .section {
    padding: 36px 16px;
  }

  .content-section {
    padding: 36px 16px;
  }

  .section-header h2 {
    font-size: 1.5rem;
  }

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

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

  .reviews-grid {
    grid-template-columns: 1fr;
  }

  .char-card {
    padding: 20px;
  }

  .char-avatar {
    width: 90px;
    height: 90px;
    font-size: 2.2rem;
  }

  .faq-question {
    padding: 16px 18px;
    font-size: 0.95rem;
  }

  .cta-banner h2 {
    font-size: 1.5rem;
  }

  .cta-banner p {
    font-size: 0.95rem;
  }
}