/* ==========================================================================
   弈境五子棋 · 现代东方典雅风视觉样式 (Gomoku Modern Oriental Theme)
   ========================================================================== */

:root {
  --bg-primary: #181412;
  --bg-secondary: #241c17;
  --bg-card: #2e231c;
  --bg-card-hover: #3a2c23;
  --wood-border: #7c481d;
  --wood-glow: rgba(212, 136, 6, 0.25);
  
  --text-main: #f5ede4;
  --text-muted: #bda995;
  --text-dim: #7f6e5e;

  --accent-gold: #d48806;
  --accent-gold-hover: #faad14;
  --accent-green: #389e0d;
  --accent-red: #cf1322;
  --accent-blue: #1677ff;

  --border-subtle: rgba(212, 136, 6, 0.18);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-lg: 0 12px 36px rgba(0, 0, 0, 0.55);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  height: 100%;
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(95, 50, 15, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(30, 18, 10, 0.3) 0%, transparent 50%);
  color: var(--text-main);
  min-height: 100%;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-y;
}

/* 页面主容器 */
.app-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 20px 60px 20px;
  display: flex;
  flex-direction: column;
  flex: 1;
  width: 100%;
}

/* ================= 1. 顶部导航栏 ================= */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-brand .logo-icon {
  font-size: 1.8rem;
  color: var(--accent-gold);
  line-height: 1;
}

.nav-brand h1 {
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: 1px;
  background: linear-gradient(135deg, #fff2db 0%, #e0aa62 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.badge {
  font-size: 0.75rem;
  padding: 3px 8px;
  border-radius: 12px;
  font-weight: 600;
}

.badge-local {
  background: rgba(82, 196, 26, 0.15);
  color: #73d13d;
  border: 1px solid rgba(82, 196, 26, 0.3);
}

.badge-llm {
  background: rgba(22, 119, 255, 0.15);
  color: #69b1ff;
  border: 1px solid rgba(22, 119, 255, 0.3);
}

.badge-pvp {
  background: rgba(250, 140, 22, 0.18);
  color: #ffa940;
  border: 1px solid rgba(250, 140, 22, 0.35);
}

.nav-quick-controls {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.quick-select-group {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.form-select-sm {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  outline: none;
  cursor: pointer;
}

.form-select-sm:focus {
  border-color: var(--accent-gold);
}

.btn-icon {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-icon:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-gold);
}

.btn-icon.muted {
  opacity: 0.6;
}

/* ================= 2. 状态与战绩横幅 ================= */
.stats-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0 16px 0;
  padding: 8px 16px;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  font-size: 0.9rem;
}

.winrate-highlight {
  color: var(--accent-gold);
  font-weight: 600;
}

.rules-pill {
  font-size: 0.8rem;
  color: #ff9c6e;
  background: rgba(250, 84, 28, 0.12);
  padding: 3px 10px;
  border-radius: 12px;
  border: 1px solid rgba(250, 84, 28, 0.25);
}

/* ================= 3. 核心布局 ================= */
.main-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 24px;
  align-items: start;
}

.board-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

/* 棋盘木框 */
.goban-frame {
  width: 100%;
  max-width: 680px;
  aspect-ratio: 1 / 1;
  background: #a46a36;
  padding: 8px;
  border-radius: var(--radius-lg);
  box-shadow: 
    0 16px 40px rgba(0, 0, 0, 0.65),
    inset 0 2px 4px rgba(255, 255, 255, 0.2),
    inset 0 -3px 6px rgba(0, 0, 0, 0.4);
  border: 3px solid #663914;
  display: flex;
  justify-content: center;
  align-items: center;
  touch-action: pan-y;
}

#boardCanvas {
  width: 100%;
  height: 100%;
  border-radius: calc(var(--radius-lg) - 6px);
  cursor: pointer;
  touch-action: pan-y;
}

/* 棋盘下方状态卡 */
.board-status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 680px;
  margin-top: 14px;
  padding: 10px 16px;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
}

.status-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.turn-badge {
  padding: 4px 12px;
  border-radius: 16px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.turn-black {
  background: #000;
  color: #fff;
  border: 1px solid #444;
}

.turn-white {
  background: #f0f0f0;
  color: #111;
  border: 1px solid #ccc;
}

.turn-ended {
  background: #555;
  color: #ddd;
}

.status-text {
  font-size: 0.95rem;
  font-weight: 500;
}

.status-text.ai-thinking {
  color: var(--accent-gold);
  animation: pulse-text 1.5s infinite;
}

@keyframes pulse-text {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.status-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.stat-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-secondary);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
}

.pill-label {
  color: var(--text-dim);
}

.pill-value {
  color: var(--text-main);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

/* 按钮工具栏 */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  width: 100%;
  max-width: 680px;
  margin-top: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 18px;
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: linear-gradient(135deg, #d48806 0%, #ad6800 100%);
  color: #fff;
}
.btn-primary:hover {
  background: linear-gradient(135deg, #faad14 0%, #d48806 100%);
}

.btn-warning {
  background: #3e3223;
  color: #ffe58f;
  border: 1px solid #876800;
}
.btn-warning:hover {
  background: #53422e;
}

.btn-info {
  background: #17263c;
  color: #91caff;
  border: 1px solid #15395b;
}
.btn-info:hover {
  background: #203554;
}

.btn-danger {
  background: #3a1d1d;
  color: #ffa39e;
  border: 1px solid #822727;
}
.btn-danger:hover {
  background: #502727;
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-subtle);
}
.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-gold);
}

.btn-outline-danger {
  background: transparent;
  color: #ff7875;
  border: 1px solid #ff4d4f;
  padding: 8px 16px;
  border-radius: var(--radius-md);
  cursor: pointer;
}
.btn-outline-danger:hover {
  background: rgba(255, 77, 79, 0.1);
}

.btn-block {
  width: 100%;
  margin-top: 10px;
}

/* ================= 4. 侧边栏 ================= */
.side-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.panel-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  padding: 16px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.ai-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.ai-avatar-wrapper {
  display: flex;
  align-items: center;
  gap: 12px;
}

.ai-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, #3e281b 0%, #1f140d 100%);
  border: 2px solid var(--accent-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

.ai-info h3 {
  font-size: 1.05rem;
  font-weight: 600;
}

.ai-tag {
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* 对话气泡 */
.ai-speech-bubble {
  position: relative;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  color: #fff1db;
  font-size: 0.92rem;
  line-height: 1.5;
  min-height: 60px;
}

.bubble-arrow {
  position: absolute;
  top: -8px;
  left: 20px;
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 8px solid var(--bg-secondary);
}

.tips-card h4 {
  font-size: 0.95rem;
  margin-bottom: 10px;
  color: var(--accent-gold);
}

.tips-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.85rem;
  line-height: 1.45;
  color: var(--text-muted);
}

.tips-list strong {
  color: var(--text-main);
}

/* ================= 5. 弹窗 Modal 体系 ================= */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: all 0.25s ease;
  z-index: 1000;
  padding: 16px;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px) scale(0.97);
  transition: all 0.25s ease;
  overflow: hidden;
}

.modal-overlay.active .modal-card {
  transform: translateY(0) scale(1);
}

.modal-card.modal-lg {
  max-width: 680px;
}

.modal-card.modal-sm {
  max-width: 380px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.modal-header h2 {
  font-size: 1.15rem;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
}

.modal-close:hover {
  color: var(--text-main);
}

.modal-body {
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.modal-footer-between {
  justify-content: space-between;
}

/* 表单样式 */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
}

.form-control {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
}

.form-control:focus {
  border-color: var(--accent-gold);
}

.radio-group, .checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.radio-label, .checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  cursor: pointer;
}

.input-with-button {
  display: flex;
  gap: 8px;
}

.btn-outline-sm {
  background: transparent;
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
}

.btn-outline-sm:hover {
  border-color: var(--accent-gold);
  color: var(--text-main);
}

/* 大模型配置卡片 */
.llm-config-box {
  background: var(--bg-card);
  border: 1px dashed var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 6px;
}

.box-title {
  font-size: 0.98rem;
  color: var(--accent-gold);
}

.box-desc {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.4;
}

.test-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 6px;
}

.test-result {
  font-size: 0.85rem;
}

.test-result.testing {
  color: #faad14;
}

.test-result.success {
  color: #52c41a;
}

.test-result.fail {
  color: #ff4d4f;
}

/* 战绩面板网格 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  gap: 10px;
  margin-bottom: 12px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 8px;
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.stat-name {
  font-size: 0.78rem;
  color: var(--text-dim);
}

.text-success { color: #52c41a; }
.text-danger { color: #ff4d4f; }
.text-warning { color: #faad14; }

.section-title {
  font-size: 0.95rem;
  margin: 8px 0 6px 0;
  color: var(--text-muted);
}

.history-list {
  max-height: 260px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.88rem;
}

.history-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.history-result {
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 0.78rem;
  font-weight: 600;
}

.history-result.win {
  background: rgba(82, 196, 26, 0.2);
  color: #73d13d;
}

.history-result.lose {
  background: rgba(255, 77, 79, 0.2);
  color: #ff7875;
}

.history-result.draw {
  background: rgba(140, 140, 140, 0.2);
  color: #d9d9d9;
}

.history-meta {
  display: flex;
  flex-direction: column;
}

.history-date {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.history-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.history-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.empty-hint {
  text-align: center;
  color: var(--text-dim);
  padding: 30px;
  font-size: 0.9rem;
}

/* 赢局提示弹窗样式 */
.text-center { text-align: center; }

.win-icon {
  font-size: 3.5rem;
  margin-bottom: 6px;
  animation: bounce 0.8s ease;
}

@keyframes bounce {
  0% { transform: scale(0.3); opacity: 0; }
  60% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(1); }
}

.win-title {
  font-size: 1.45rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.win-title.player-win {
  color: #ffd700;
  text-shadow: 0 0 16px rgba(255, 215, 0, 0.4);
}

.win-title.player-lose {
  color: #ff7875;
}

.win-subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.win-details {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.9rem;
}

.detail-row {
  display: flex;
  justify-content: space-between;
  color: var(--text-muted);
}

.detail-row strong {
  color: var(--text-main);
}

.win-actions {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 14px;
}

/* 规则内容 */
.rules-content {
  font-size: 0.9rem;
  line-height: 1.6;
  color: var(--text-muted);
}

.rules-content h3 {
  font-size: 1rem;
  color: var(--accent-gold);
  margin: 12px 0 6px 0;
}

.rules-content ul {
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.rules-content code {
  background: var(--bg-card);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--accent-gold);
  font-family: monospace;
}

/* Toast */
.toast {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  background: rgba(30, 24, 20, 0.92);
  border: 1px solid var(--accent-gold);
  color: #fff;
  padding: 10px 22px;
  border-radius: 20px;
  font-size: 0.92rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  pointer-events: none;
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 2000;
  backdrop-filter: blur(4px);
  max-width: 90vw;
  text-align: center;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* 页脚 */
.footer {
  margin-top: auto;
  padding-top: 24px;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* ================= 6. 响应式布局优化 ================= */
@media (max-width: 900px) {
  .main-layout {
    grid-template-columns: 1fr;
  }

  .side-panel {
    order: 2;
  }

  .navbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-quick-controls {
    width: 100%;
    justify-content: flex-start;
  }
}

@media (max-width: 480px) {
  .app-container {
    padding: 10px 12px;
  }

  .toolbar .btn {
    flex: 1 1 calc(50% - 10px);
    font-size: 0.85rem;
    padding: 8px 10px;
  }

  .stats-banner {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ================= 7. 密码认证锁屏 ================= */
.auth-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: radial-gradient(circle at center, #241a13 0%, #120d0a 100%);
  backdrop-filter: blur(16px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
  padding: 20px;
}

.app-unlocked .auth-overlay {
  display: none !important;
}

.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--accent-gold);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  width: 100%;
  max-width: 380px;
  text-align: center;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.75), 0 0 24px rgba(212, 136, 6, 0.2);
  display: flex;
  flex-direction: column;
  gap: 16px;
  animation: auth-fadein 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes auth-fadein {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

.auth-card.shake {
  animation: auth-shake 0.4s ease;
}

@keyframes auth-shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-8px); }
  40%, 80% { transform: translateX(8px); }
}

.auth-icon {
  font-size: 3rem;
  color: var(--accent-gold);
  line-height: 1;
}

.auth-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff2db;
}

.auth-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.auth-input-group {
  margin: 6px 0;
}

.auth-input {
  width: 100%;
  background: var(--bg-secondary);
  border: 2px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: #fff;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 8px;
  text-align: center;
  padding: 10px 14px;
  outline: none;
  transition: all 0.2s ease;
}

.auth-input:focus {
  border-color: var(--accent-gold);
  box-shadow: 0 0 12px rgba(212, 136, 6, 0.35);
}

.auth-remember-row {
  display: flex;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.auth-error-msg {
  font-size: 0.85rem;
  color: #ff4d4f;
  min-height: 1.2em;
  font-weight: 500;
}