/* =====================================================
   Theme 18: 复古棕 Retro Brown
   深色配色方案 - Dark Upgrade
   ===================================================== */

:root {
  /* === 三层背景体系 === */
  --color-body-bg: #1A0E08;
  --color-bg: #271810;
  --color-surface: #271810;
  --color-surface-2: #34221A;

  /* === 品牌色 === */
  --color-primary: #FFB300;
  --color-secondary: #BCAAA4;
  --color-accent: #3E2723;
  --color-text: #D7CCC8;
  --color-heading: #FFF3E0;
  --color-link: #FFB300;
  --color-link-hover: #FFC107;

  /* === Hero背景（渐变+图片+遮罩） === */
  --hero-bg: linear-gradient(135deg, #1A0E08 0%, #271810 50%, #1A0E08 100%);
  --hero-bg-image: url('/wp-content/themes/slots-master/assets/images/casino-bg/casino-18.jpg');
  --hero-bg-overlay: linear-gradient(135deg, rgba(26,14,8,0.88) 0%, rgba(39,24,16,0.75) 100%);
  --hero-glow: radial-gradient(circle at 60% 50%, rgba(255,179,0,0.12) 0%, transparent 60%);
  --hero-title-color: #FFF3E0;
  --hero-subtitle-color: #D7CCC8;
  --hero-tag-bg: rgba(255,179,0,0.12);
  --hero-tag-color: #FFB300;
  --hero-tag-border: 1px solid rgba(188,170,164,0.25);

  /* === CTA按钮 === */
  --btn-register-bg: #FFB300;
  --btn-register-color: #1A0E08;
  --btn-register-hover: #FF8F00;
  --btn-download-bg: transparent;
  --btn-download-border: 2px solid #BCAAA4;
  --btn-download-color: #D7CCC8;
  --btn-download-hover-bg: #BCAAA4;
  --btn-download-hover-color: #1A0E08;
  --btn-support-bg: rgba(255,255,255,0.06);
  --btn-support-color: #D7CCC8;
  --btn-support-hover-bg: rgba(255,255,255,0.12);

  /* === 导航栏按钮 === */
  --nav-btn-register-bg: #FFB300;
  --nav-btn-register-color: #1A0E08;
  --nav-btn-download-bg: transparent;
  --nav-btn-download-border: 1px solid #BCAAA4;
  --nav-btn-download-color: #D7CCC8;

  /* === 滚动提示 === */
  --scroll-hint-color: #FFB300;
  --scroll-hint-animation: breathe;

  /* === 字体 === */
  --font-heading: 'Playfair Display', serif;
  --font-body: 'Lora', serif;

  /* === 圆角 === */
  --radius-button: 4px;
  --radius-card: 12px;
  --radius-tag: 4px;

  /* === 阴影 === */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 32px rgba(255,179,0,0.12);

  /* === 布局 === */
  --header-height: 70px;
  --header-bg: rgba(26,14,8,0.95);
  --header-border: 1px solid rgba(255,179,0,0.10);

  /* === 赌场装饰 === */
  --casino-decor-color: rgba(255,179,0,0.08);
  --casino-decor-accent: rgba(188,170,164,0.06);
}

/* ============ Hero & Navigation Enhancement ============ */
:root {
  --particle-color-1: rgba(255,179,0,0.4);
  --particle-color-2: rgba(188,170,164,0.2);
  --particle-shape: circle;
  --particle-line-color: rgba(255,179,0,0.05);
  --hero-title-gradient: linear-gradient(135deg, #FFF3E0 0%, #FFB300 100%);
  --hero-visual-filter: drop-shadow(0 0 25px rgba(255,179,0,0.2));
  --hero-visual-glow: rgba(255,179,0,0.06);
  --stats-bar-bg: rgba(255,179,0,0.03);
  --stats-bar-border: rgba(188,170,164,0.10);
  --badge-bg: rgba(255,179,0,0.08);
  --badge-color: #FFB300;
  --badge-border: rgba(188,170,164,0.15);
  --nav-glass-bg: rgba(26,14,8,0.88);
  --btn-register-glow: rgba(255,179,0,0.15);
}