/* === 凉花酱の烦恼 — Gentle Pastel Watercolor Theme === */

:root {
  /* Core palette */
  --bg: #faf8f5;
  --bg-alt: #f5f2ed;
  --bg-card: #fffefb;
  --text: #4a4a4a;
  --text-light: #8a8a8a;
  --text-dark: #2d2d2d;
  --accent: #f0a8b8;
  --accent-hover: #e8889d;
  --accent-light: #fce4ec;
  --mint: #a8d8c8;
  --mint-hover: #8cc4b0;
  --mint-light: #d4efe4;
  --mint-wash: #e8f6f0;
  --pink: #f4c2c2;
  --pink-wash: #fdf0f4;
  --gold: #d4a843;
  --gold-light: #faf3e0;
  --white: #fffefb;

  /* Watercolor washes */
  --wash-mint: rgba(168, 216, 200, 0.12);
  --wash-pink: rgba(240, 168, 184, 0.10);
  --wash-gold: rgba(212, 168, 67, 0.06);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.08);

  /* Layout */
  --header-height: 64px;
  --max-width: 1100px;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-sm: 8px;
  --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

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

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

/* Watercolor wash background */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 60% at 20% 15%, var(--wash-pink), transparent 50%),
    radial-gradient(ellipse 60% 50% at 75% 30%, var(--wash-mint), transparent 50%),
    radial-gradient(ellipse 70% 50% at 50% 70%, var(--wash-gold), transparent 50%),
    radial-gradient(ellipse 50% 40% at 85% 80%, var(--wash-pink), transparent 50%);
}

/* Floral decoration — delicate scattered petals */
body::after {
  content: "✿";
  position: fixed;
  z-index: -1;
  pointer-events: none;
  font-size: 4rem;
  color: var(--accent-light);
  opacity: 0.18;
  top: 8%;
  right: 5%;
  transform: rotate(15deg);
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4 {
  color: var(--text-dark);
  font-weight: 700;
  line-height: 1.3;
}

h1 { font-size: 2.4rem; letter-spacing: -0.02em; }
h2 { font-size: 1.8rem; }
h3 { font-size: 1.25rem; }

a {
  color: var(--accent-hover);
  text-decoration: none;
  transition: color 0.2s;
}
a:hover { color: var(--accent); }

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

/* ===== HEADER ===== */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 254, 251, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--mint-light);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.header-inner {
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-dark);
  text-decoration: none;
}

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--pink-wash), var(--mint-wash));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

/* Desktop nav */
nav {
  display: flex;
  align-items: center;
  gap: 0.15rem;
}

nav a {
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  transition: background 0.2s, color 0.2s;
}

nav a:hover,
nav a.active {
  background: var(--mint-wash);
  color: var(--text-dark);
}

.nav-cta {
  background: linear-gradient(135deg, var(--accent), var(--pink)) !important;
  color: var(--white) !important;
  border-radius: 24px !important;
  padding: 0.45rem 1.3rem !important;
  font-weight: 600 !important;
  margin-left: 0.5rem;
  box-shadow: 0 2px 8px rgba(240,168,184,0.3);
  transition: transform 0.2s, box-shadow 0.2s !important;
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(240,168,184,0.4);
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 5px;
  z-index: 101;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}
.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 90% 70% at 50% 0%, var(--mint-wash), transparent 60%),
    radial-gradient(ellipse 80% 60% at 50% 100%, var(--pink-wash), transparent 60%),
    var(--bg-card);
  padding: 3rem 1.5rem 4rem;
  text-align: center;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle 200px at 15% 20%, var(--wash-pink), transparent),
    radial-gradient(circle 180px at 85% 60%, var(--wash-mint), transparent),
    radial-gradient(circle 150px at 50% 80%, var(--wash-gold), transparent);
  pointer-events: none;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.hero-visual {
  max-width: 700px;
  margin: 0 auto 2rem;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 3px solid var(--mint-light);
}

.hero h1 {
  background: linear-gradient(135deg, var(--accent-hover), var(--mint-hover));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 2.8rem;
  letter-spacing: -0.01em;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-light);
  max-width: 620px;
  margin: 1rem auto 0;
}

.hero-badges {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}

.tag {
  display: inline-block;
  padding: 0.3rem 0.9rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
}

.tag-mint { background: var(--mint-light); color: #3d6b5a; }
.tag-pink { background: var(--accent-light); color: #b05065; }
.tag-gold { background: var(--gold-light); color: #8a6e20; }

.hero-cta {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.2s, box-shadow 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--pink));
  color: var(--white);
  box-shadow: 0 4px 16px rgba(240,168,184,0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(240,168,184,0.45);
  color: var(--white);
}

.btn-outline {
  background: var(--white);
  color: var(--accent-hover);
  border: 2px solid var(--accent-light);
}

.btn-outline:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  color: var(--accent-hover);
}

.btn-mint {
  background: linear-gradient(135deg, var(--mint), var(--mint-hover));
  color: var(--white);
  box-shadow: 0 4px 16px rgba(168,216,200,0.35);
}

.btn-mint:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(168,216,200,0.45);
  color: var(--white);
}

/* ===== CONTAINER ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ===== SECTIONS ===== */
section {
  padding: 4rem 1.5rem;
  position: relative;
}

.section-alt {
  background:
    radial-gradient(ellipse 70% 50% at 50% 0%, var(--mint-wash), transparent),
    var(--bg-alt);
}

.section-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-header h2 {
  position: relative;
  display: inline-block;
}

.section-header h2::after {
  content: "";
  display: block;
  width: 50px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--mint));
  border-radius: 2px;
  margin: 0.6rem auto 0;
}

.section-header p {
  color: var(--text-light);
  max-width: 560px;
  margin: 0.8rem auto 0;
}

/* Floral divider */
.floral-divider {
  text-align: center;
  font-size: 1.5rem;
  color: var(--accent);
  opacity: 0.5;
  margin: 1rem 0;
  letter-spacing: 0.5rem;
}

/* ===== INFO CARDS ===== */
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.info-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--mint-light);
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
}

.info-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.info-card-icon {
  font-size: 2rem;
  margin-bottom: 0.8rem;
}

.info-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.4rem;
}

.info-card p {
  color: var(--text-light);
  font-size: 0.9rem;
}

/* ===== FEATURE CARDS ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.feature-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.8rem;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--mint);
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.feature-card h3 {
  color: var(--mint-hover);
  margin-bottom: 0.6rem;
}

.feature-card p {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* ===== SCREENSHOT GALLERY ===== */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.2rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.gallery-item {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 2px solid var(--mint-light);
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s;
}

.gallery-item:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-md);
}

/* ===== LIGHTBOX ===== */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(0,0,0,0.85);
  align-items: center;
  justify-content: center;
}

.lightbox.active {
  display: flex;
}

.lightbox img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius);
  box-shadow: 0 8px 48px rgba(0,0,0,0.4);
}

.lightbox-close {
  position: absolute;
  top: 1.5rem;
  right: 2rem;
  font-size: 2rem;
  color: #fff;
  background: none;
  border: none;
  cursor: pointer;
  opacity: 0.8;
  transition: opacity 0.2s;
}

.lightbox-close:hover {
  opacity: 1;
}

/* ===== STORY BLOCK ===== */
.story-block {
  max-width: 720px;
  margin: 0 auto 2rem;
  padding: 2rem;
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--accent);
}

.story-block h3 {
  color: var(--accent-hover);
  margin-bottom: 0.8rem;
}

.story-block p {
  color: var(--text);
  font-size: 0.98rem;
  line-height: 1.8;
}

/* ===== CHARACTER CARDS ===== */
.char-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.char-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  border-top: 4px solid var(--accent);
  text-align: center;
  transition: transform 0.2s;
}

.char-card:hover {
  transform: translateY(-3px);
}

.char-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  margin: 0 auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  background: linear-gradient(135deg, var(--pink-wash), var(--mint-wash));
  border: 3px solid var(--accent-light);
}

.char-card h3 {
  margin-bottom: 0.3rem;
}

.char-role {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.8rem;
}

.char-card p {
  color: var(--text-light);
  font-size: 0.9rem;
  line-height: 1.6;
}

.char-traits {
  display: flex;
  justify-content: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  margin-top: 0.8rem;
}

/* ===== GUIDE STEPS ===== */
.guide-steps {
  max-width: 720px;
  margin: 0 auto;
  counter-reset: step;
}

.guide-step {
  counter-increment: step;
  display: flex;
  gap: 1.2rem;
  padding: 1.5rem;
  margin-bottom: 1rem;
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s;
}

.guide-step:hover {
  transform: translateX(4px);
}

.step-number {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--mint), var(--accent));
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
}

.guide-step h3 {
  margin-bottom: 0.3rem;
  font-size: 1.1rem;
}

.guide-step p {
  color: var(--text-light);
  font-size: 0.93rem;
  line-height: 1.6;
}

/* ===== TIP BOX ===== */
.tip-box {
  max-width: 720px;
  margin: 1.5rem auto;
  padding: 1.2rem 1.5rem;
  background: var(--mint-wash);
  border-radius: var(--radius);
  border-left: 4px solid var(--mint);
}

.tip-box p {
  color: #3d6b5a;
  font-size: 0.93rem;
}

.tip-box strong {
  color: #2d5a4a;
}

/* ===== FAQ ACCORDION ===== */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  margin-bottom: 0.8rem;
  overflow: hidden;
  border: 1px solid var(--mint-light);
}

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 1.2rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font);
}

.faq-question::after {
  content: "✿";
  font-size: 1.1rem;
  color: var(--accent);
  transition: transform 0.3s;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
  max-height: 400px;
}

.faq-answer-inner {
  padding: 0 1.5rem 1.2rem;
  color: var(--text-light);
  font-size: 0.93rem;
  line-height: 1.7;
}

/* ===== CTA BANNER ===== */
.cta-banner {
  text-align: center;
  padding: 3rem 1.5rem;
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, var(--mint-wash), transparent),
    radial-gradient(ellipse 60% 50% at 50% 100%, var(--pink-wash), transparent),
    var(--bg-card);
  border-radius: var(--radius-lg);
  max-width: var(--max-width);
  margin: 4rem auto;
  box-shadow: var(--shadow-md);
}

.cta-banner h2 {
  margin-bottom: 0.8rem;
}

.cta-banner p {
  color: var(--text-light);
  max-width: 500px;
  margin: 0 auto 1.5rem;
}

/* ===== BREADCRUMBS ===== */
.breadcrumbs {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.5rem 0;
  font-size: 0.88rem;
  color: var(--text-light);
}

.breadcrumbs a {
  color: var(--text-light);
}

.breadcrumbs a:hover {
  color: var(--accent-hover);
}

.breadcrumbs span {
  margin: 0 0.4rem;
}

/* ===== REVIEW SECTION ===== */
.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.review-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  border-bottom: 3px solid var(--accent-light);
}

.review-stars {
  color: var(--gold);
  margin-bottom: 0.6rem;
  font-size: 1.1rem;
}

.review-card p {
  color: var(--text);
  font-size: 0.93rem;
  line-height: 1.7;
  font-style: italic;
}

.review-author {
  margin-top: 1rem;
  color: var(--text-light);
  font-size: 0.85rem;
  font-style: normal;
}

/* ===== STATS ROW ===== */
.stats-row {
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  flex-wrap: wrap;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 0;
}

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

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--mint));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  color: var(--text-light);
  font-size: 0.88rem;
}

/* ===== PAGE HERO (sub-page) ===== */
.page-hero {
  text-align: center;
  padding: 3rem 1.5rem 2rem;
  background:
    radial-gradient(ellipse 70% 50% at 50% 0%, var(--mint-wash), transparent),
    var(--bg);
}

.page-hero h1 {
  background: linear-gradient(135deg, var(--accent-hover), var(--mint-hover));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-hero p {
  color: var(--text-light);
  max-width: 560px;
  margin: 0.8rem auto 0;
}

/* ===== ENDING CARDS ===== */
.ending-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.2rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.ending-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s;
}

.ending-card:hover {
  transform: translateY(-3px);
}

.ending-icon {
  font-size: 2.5rem;
  margin-bottom: 0.6rem;
}

.ending-card h3 {
  margin-bottom: 0.4rem;
}

.ending-card p {
  color: var(--text-light);
  font-size: 0.9rem;
}

/* ===== TABLE ===== */
.info-table {
  max-width: 720px;
  margin: 0 auto;
  width: 100%;
  border-collapse: collapse;
}

.info-table th,
.info-table td {
  padding: 0.8rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--mint-light);
}

.info-table th {
  color: var(--accent-hover);
  font-weight: 600;
  width: 30%;
  font-size: 0.93rem;
}

.info-table td {
  color: var(--text);
  font-size: 0.93rem;
}

/* ===== BLOCKQUOTE ===== */
blockquote {
  max-width: 720px;
  margin: 1.5rem auto;
  padding: 1.2rem 1.5rem;
  background: var(--pink-wash);
  border-radius: var(--radius);
  border-left: 4px solid var(--accent);
  font-style: italic;
  color: var(--text);
}

/* ===== FOOTER ===== */
footer {
  text-align: center;
  padding: 1.5rem;
  border-top: 1px solid var(--mint-light);
  font-size: 0.85rem;
  color: var(--text-light);
  background: var(--bg-alt);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  :root { --header-height: 56px; }

  h1 { font-size: 1.8rem; }
  h2 { font-size: 1.4rem; }
  .hero h1 { font-size: 2rem; }

  .menu-toggle { display: flex; }

  nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 260px;
    height: 100vh;
    background: rgba(255,254,251,0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 5rem 1.5rem 2rem;
    gap: 0.3rem;
    transition: right 0.3s ease;
    box-shadow: -4px 0 20px rgba(0,0,0,0.08);
    align-items: stretch;
  }

  nav.active { right: 0; }

  nav a {
    padding: 0.7rem 1rem;
    font-size: 1.05rem;
  }

  .nav-cta {
    text-align: center;
    margin: 0.8rem 0 0;
    padding: 0.6rem 1.2rem !important;
  }

  section { padding: 2.5rem 1rem; }

  .info-grid,
  .feature-grid,
  .char-grid,
  .review-grid,
  .gallery {
    grid-template-columns: 1fr;
  }

  .stats-row { gap: 1.5rem; }
  .guide-step { flex-direction: column; gap: 0.6rem; }
}

@media (max-width: 480px) {
  .hero { padding: 2rem 1rem 2.5rem; }
  .hero h1 { font-size: 1.6rem; }
  .hero p { font-size: 0.95rem; }
  .hero-cta { flex-direction: column; align-items: center; }
  .cta-banner { margin: 2rem 1rem; }
}