* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@400;500;700;900&family=Noto+Sans+JP:wght@300;400;500;700&display=swap');

:root {
  --shu: #E60012;
  --ai: #1B2A4A;
  --sumi: #1C1C1C;
  --kin: #C9A84C;
  --sakura: #FEDFE1;
  --kinari: #F5E9D8;
  --sabi: #8B5E3C;
  --shironeri: #FCFAF2;
  --kuro: #0D0D0D;
  --chabana: #8B4513;
  --usugaki: #F2D5C4;
  --tokusa: #3B4B3B;
  --fuji: #8B7BA0;
  --washi: #F5F0E8;
  --shadow-soft: 0 2px 20px rgba(0,0,0,0.08);
  --shadow-medium: 0 4px 30px rgba(0,0,0,0.12);
  --radius: 8px;
  --serif: 'Noto Serif JP', 'Yu Mincho', '游明朝', serif;
  --sans: 'Noto Sans JP', 'Hiragino Sans', sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--sans);
  background: var(--washi);
  color: var(--sumi);
  line-height: 1.8;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  padding-top: 56px;
}

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(27,42,74,0.6);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(27,42,74,0.92);
  box-shadow: 0 2px 20px rgba(0,0,0,0.2);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  padding: 0 1.5rem;
  height: 56px;
}

.nav-brand {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--kin);
  text-decoration: none;
  letter-spacing: 0.1em;
  margin-right: 2rem;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 0.25rem;
  flex: 1;
}

.nav-link {
  font-family: var(--serif);
  font-size: 0.85rem;
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  padding: 0.3rem 0.8rem;
  border-radius: 4px;
  transition: var(--transition);
  letter-spacing: 0.05em;
}

.nav-link:hover,
.nav-link.active {
  color: var(--shironeri);
  background: rgba(255,255,255,0.06);
}

.nav-join {
  font-family: var(--serif);
  font-size: 0.8rem;
  color: var(--shironeri);
  text-decoration: none;
  padding: 0.35rem 1rem;
  background: var(--shu);
  border-radius: 4px;
  transition: var(--transition);
  letter-spacing: 0.1em;
  flex-shrink: 0;
  margin-left: 0.5rem;
}

.nav-join:hover {
  background: #CC0010;
  transform: translateY(-1px);
}

.lang-toggle {
  font-family: var(--serif);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--shironeri);
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 4px;
  padding: 0.25rem 0.6rem;
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
  letter-spacing: 0.05em;
}

.lang-toggle:hover {
  background: rgba(255,255,255,0.18);
  border-color: var(--kin);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--shironeri);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 0.25rem;
  margin-left: 0.5rem;
}

/* ===== RULES ===== */
.rules-section {
  background: var(--kinari);
  position: relative;
}

.rules-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--shu), var(--kin), var(--ai));
}

.rules-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 700px;
  margin: 0 auto;
}

.rule-item {
  display: flex;
  gap: 1.2rem;
  padding: 1.2rem 1.5rem;
  background: rgba(255,255,255,0.6);
  border: 1px solid rgba(27,42,74,0.06);
  border-radius: var(--radius);
  transition: var(--transition);
}

.rule-item:hover {
  background: rgba(255,255,255,0.85);
  border-color: rgba(230,0,18,0.12);
  box-shadow: var(--shadow-soft);
  transform: translateX(4px);
}

.rule-num {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--shu);
  flex-shrink: 0;
  width: 2rem;
  text-align: center;
  line-height: 1.4;
}

.rule-body {
  flex: 1;
}

.rule-title {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 1rem;
  color: var(--ai);
  display: block;
  margin-bottom: 0.2rem;
}

.rule-desc {
  font-size: 0.85rem;
  color: var(--sabi);
  line-height: 1.6;
}

.washi-bg {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(230,0,18,0.015) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 50%, rgba(27,42,74,0.015) 0%, transparent 50%),
    repeating-linear-gradient(
      0deg, transparent, transparent 2px,
      rgba(0,0,0,0.008) 2px, rgba(0,0,0,0.008) 3px
    );
  pointer-events: none;
  z-index: 0;
}

/* ===== HEADER / NOREN ===== */
header {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, var(--ai) 0%, #0F1A2E 40%, #1a0a0a 100%);
  overflow: hidden;
  z-index: 1;
}

header::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(230,0,18,0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(201,168,76,0.05) 0%, transparent 50%);
  pointer-events: none;
}

.noren {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  display: flex;
  z-index: 2;
}

.noren-stripe {
  flex: 1;
  height: 6px;
  background: var(--shu);
}

.noren-stripe:nth-child(2) { background: var(--kin); }
.noren-stripe:nth-child(3) { background: var(--shironeri); }
.noren-stripe:nth-child(4) { background: var(--ai); }

.header-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 2rem;
  animation: fadeUp 1s ease-out;
  max-width: 600px;
}

.server-icon,
.server-icon-img {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  margin: 0 auto 1.5rem;
  box-shadow: 0 0 40px rgba(230,0,18,0.3);
  border: 3px solid var(--kin);
  display: block;
}

.server-icon {
  background: linear-gradient(135deg, var(--shu), var(--sabi));
  color: var(--shironeri);
  font-family: var(--serif);
  font-size: 2.5rem;
  font-weight: 900;
  display: flex;
  align-items: center;
  justify-content: center;
}

.server-icon-img {
  object-fit: cover;
}

h1 {
  font-family: var(--serif);
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--shironeri);
  letter-spacing: 0.15em;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
  margin-bottom: 0.5rem;
}

.subtitle {
  font-family: var(--serif);
  font-size: 1.1rem;
  color: var(--kin);
  letter-spacing: 0.3em;
  margin-bottom: 1.5rem;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.12);
  padding: 0.5rem 1.5rem;
  border-radius: 50px;
  color: var(--shironeri);
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #22c55e;
  display: inline-block;
}

.dot.pulse {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.btn {
  display: inline-block;
  padding: 1rem 3rem;
  background: linear-gradient(135deg, var(--shu), #CC0010);
  color: var(--shironeri);
  font-family: var(--serif);
  font-size: 1.1rem;
  font-weight: 700;
  text-decoration: none;
  border-radius: 4px;
  letter-spacing: 0.15em;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.1);
}

.btn::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transition: 0.5s;
}

.btn:hover::before { left: 100%; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(230,0,18,0.4); }

/* ===== SECTIONS ===== */
section[id],
header[id] {
  scroll-margin-top: 60px;
}

.section {
  position: relative;
  padding: 5rem 1.5rem;
  overflow: hidden;
}

.section-content {
  max-width: 1100px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.section-title {
  font-family: var(--serif);
  font-size: 2rem;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--ai);
  letter-spacing: 0.2em;
}

.title-ornament {
  color: var(--shu);
  font-size: 1.2rem;
}

/* Seigaiha wave pattern overlay */
.seigaiha-overlay {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  opacity: 0.03;
  pointer-events: none;
  background:
    radial-gradient(circle at 25% 0, var(--ai) 3px, transparent 3px),
    radial-gradient(circle at 75% 0, var(--ai) 3px, transparent 3px);
  background-size: 40px 20px;
  background-position: 0 0, 20px 10px;
}

.asanoha-overlay {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  opacity: 0.025;
  pointer-events: none;
  background:
    linear-gradient(60deg, var(--ai) 1px, transparent 1px),
    linear-gradient(-60deg, var(--ai) 1px, transparent 1px);
  background-size: 30px 52px;
  background-position: 0 0, 0 0;
}

.channels-section {
  background: var(--shironeri);
}

.members-section {
  background: var(--kinari);
}

/* ===== VOICE ===== */
.voice-section {
  background: var(--shironeri);
  position: relative;
}

.voice-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--ai), var(--fuji), var(--kin));
}

.voice-empty {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--sabi);
  font-family: var(--serif);
  font-size: 0.95rem;
  background: rgba(255,255,255,0.5);
  border: 1px dashed rgba(27,42,74,0.12);
  border-radius: var(--radius);
}

.voice-channel-group {
  margin-bottom: 1.5rem;
}

.voice-channel-group:last-child {
  margin-bottom: 0;
}

.voice-channel-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.8rem;
  padding: 0.5rem 1rem;
  background: rgba(27,42,74,0.04);
  border-radius: var(--radius);
  border-left: 3px solid var(--fuji);
}

.voice-channel-header .channel-icon {
  width: 28px;
  height: 28px;
  font-size: 0.7rem;
}

.voice-channel-name {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--ai);
}

.voice-channel-count {
  font-size: 0.75rem;
  color: var(--sabi);
  margin-left: auto;
  white-space: nowrap;
}

.voice-members {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.voice-member {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.8rem 0.4rem 0.4rem;
  background: rgba(255,255,255,0.7);
  border: 1px solid rgba(27,42,74,0.08);
  border-radius: 50px;
  transition: var(--transition);
}

.voice-member:hover {
  background: rgba(255,255,255,0.9);
  border-color: rgba(27,42,74,0.15);
  box-shadow: var(--shadow-soft);
}

.voice-member-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.voice-member-initial {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--fuji), var(--ai));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 0.65rem;
  font-family: var(--serif);
  flex-shrink: 0;
}

.voice-member-name {
  font-family: var(--serif);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--sumi);
  max-width: 120px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.voice-badge {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-size: 0.6rem;
  color: var(--sabi);
  background: rgba(0,0,0,0.04);
  padding: 1px 5px;
  border-radius: 3px;
  flex-shrink: 0;
}

/* ===== CHANNELS ===== */
.channels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.channel-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.2rem;
  background: rgba(255,255,255,0.7);
  border: 1px solid rgba(27,42,74,0.08);
  border-radius: var(--radius);
  transition: var(--transition);
  backdrop-filter: blur(4px);
}

.channel-card:hover {
  border-color: rgba(230,0,18,0.2);
  box-shadow: var(--shadow-soft);
  transform: translateY(-2px);
}

.channel-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--fuji), var(--ai));
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.channel-info {
  flex: 1;
  min-width: 0;
}

.channel-name {
  font-family: var(--serif);
  font-weight: 500;
  color: var(--sumi);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.channel-position {
  font-size: 0.75rem;
  color: var(--sabi);
  letter-spacing: 0.05em;
}

/* ===== MEMBERS ===== */
.member-filters {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.filter-btn {
  padding: 0.4rem 1.2rem;
  border: 1px solid rgba(27,42,74,0.15);
  background: transparent;
  border-radius: 50px;
  font-family: var(--serif);
  font-size: 0.85rem;
  color: var(--ai);
  cursor: pointer;
  transition: var(--transition);
}

.filter-btn:hover {
  border-color: var(--shu);
  color: var(--shu);
}

.filter-btn.active {
  background: var(--ai);
  color: var(--shironeri);
  border-color: var(--ai);
}

.members-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 0.8rem;
}

.member-card {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.7rem 1rem;
  background: rgba(255,255,255,0.5);
  border: 1px solid rgba(27,42,74,0.06);
  border-radius: var(--radius);
  transition: var(--transition);
  cursor: default;
}

.member-card:hover {
  background: rgba(255,255,255,0.8);
  border-color: rgba(27,42,74,0.12);
  box-shadow: var(--shadow-soft);
}

.member-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid transparent;
  transition: var(--transition);
}

.member-avatar.online { border-color: #22c55e; }
.member-avatar.dnd { border-color: #ef4444; }
.member-avatar.idle { border-color: #eab308; }

.member-name {
  font-family: var(--serif);
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.member-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-left: auto;
}

.member-status-dot.online { background: #22c55e; }
.member-status-dot.dnd { background: #ef4444; }
.member-status-dot.idle { background: #eab308; }

.member-game {
  font-size: 0.7rem;
  color: var(--sabi);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 100px;
}

/* ===== FOOTER ===== */
footer {
  position: relative;
  background: var(--sumi);
  color: var(--shironeri);
  text-align: center;
  padding: 0;
  overflow: hidden;
}

.footer-wave {
  height: 30px;
  background:
    radial-gradient(circle at 50% -10px, transparent 35px, var(--sumi) 35px);
  background-size: 60px 30px;
  background-position: 0 0;
}

.footer-content {
  padding: 2.5rem 1.5rem 3rem;
  position: relative;
}

.footer-content p {
  font-family: var(--serif);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
  opacity: 0.8;
  margin-bottom: 0.3rem;
}

.footer-meta {
  color: var(--kin);
  opacity: 1 !important;
  font-size: 0.8rem !important;
}

.footer-credit {
  font-size: 0.7rem !important;
  opacity: 0.4 !important;
  margin-top: 1rem;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== LOADING ===== */
.loading {
  text-align: center;
  padding: 3rem;
  color: var(--sabi);
  font-family: var(--serif);
}

.loading::after {
  content: '...';
  animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
  0% { content: ''; }
  25% { content: '.'; }
  50% { content: '..'; }
  75% { content: '...'; }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 56px; left: 0; right: 0; background: rgba(27,42,74,0.95); backdrop-filter: blur(12px); padding: 0.5rem; border-bottom: 1px solid rgba(255,255,255,0.06); }
  .nav-link { padding: 0.6rem 1rem; }
  .nav-toggle { display: block; }
  h1 { font-size: 2rem; }
  .subtitle { font-size: 0.9rem; }
  .section { padding: 3rem 1rem; }
  .section-title { font-size: 1.5rem; }
  .channels-grid { grid-template-columns: 1fr; }
  .members-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); }
  .server-icon,
  .server-icon-img { width: 72px; height: 72px; }
  .server-icon { font-size: 2rem; }
}

@media (max-width: 480px) {
  h1 { font-size: 1.5rem; letter-spacing: 0.1em; }
  .subtitle { font-size: 0.8rem; letter-spacing: 0.15em; }
  .members-grid { grid-template-columns: 1fr 1fr; }
  .btn { padding: 0.8rem 2rem; font-size: 0.95rem; }
  .server-icon,
  .server-icon-img { width: 72px; height: 72px; }
  .header-content { padding: 1.5rem 1rem; }
  .status-badge { font-size: 0.8rem; padding: 0.4rem 1rem; }
}