/* ===========================================
   Traditional Elements & Dividers
   =========================================== */
.traditional-divider {
    width: 100%;
    height: 2px;
    margin: 2rem 0;
    background: linear-gradient(90deg, 
        transparent 0%, 
        var(--color-gold) 20%, 
        var(--color-primary) 50%, 
        var(--color-gold) 80%, 
        transparent 100%);
    position: relative;
}

.traditional-divider.lotus::before {
    content: '🪷';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    background: var(--color-background-dark);
    padding: 0 1rem;
    font-size: 1.2rem;
}

.traditional-divider.dragon::before {
    content: '🐉';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    background: var(--color-background-dark);
    padding: 0 1rem;
    font-size: 1.2rem;
}

/* ===========================================
   Background Patterns & Effects
   =========================================== */
.particle-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    background: radial-gradient(circle at 20% 80%, rgba(139, 127, 245, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(245, 200, 66, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 40% 40%, rgba(139, 127, 245, 0.05) 0%, transparent 50%);
}

.watermark-pattern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 2;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(139, 127, 245, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 75% 75%, rgba(245, 200, 66, 0.03) 0%, transparent 50%);
    background-size: 200px 200px;
    opacity: 0.6;
}

.chinese-pattern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 3;
    background-image: 
        repeating-linear-gradient(45deg, transparent, transparent 2px, rgba(139, 127, 245, 0.02) 2px, rgba(139, 127, 245, 0.02) 4px),
        repeating-linear-gradient(-45deg, transparent, transparent 2px, rgba(245, 200, 66, 0.02) 2px, rgba(245, 200, 66, 0.02) 4px);
    opacity: 0.4;
}

.dragon-motif {
    position: fixed;
    top: 10%;
    right: 5%;
    width: 100px;
    height: 100px;
    pointer-events: none;
    z-index: 4;
    background: radial-gradient(circle, rgba(245, 200, 66, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    opacity: 0.3;
}

.cloud-motif {
    position: fixed;
    bottom: 10%;
    left: 5%;
    width: 150px;
    height: 80px;
    pointer-events: none;
    z-index: 4;
    background: radial-gradient(ellipse, rgba(139, 127, 245, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    opacity: 0.4;
}

/* ===========================================
   Dark Theme (Default)
   =========================================== */
:root {
    /* Dark theme is the default */
    --theme-background: var(--color-background-dark);
    --theme-text: var(--color-text-dark);
    --theme-text-muted: var(--color-text-muted-dark);
    --theme-card: var(--color-card-dark);
    --theme-border: var(--color-border-dark);
}

/* ===========================================
   Light Theme
   =========================================== */
html.light {
    --theme-background: var(--color-background-light);
    --theme-text: var(--color-text-light);
    --theme-text-muted: var(--color-text-muted-light);
    --theme-card: var(--color-card-light);
    --theme-border: var(--color-border-light);
}

html.light body {
    background: linear-gradient(135deg, var(--color-background-light) 0%, #f1f5f9 50%, #e2e8f0 100%);
    color: var(--theme-text);
}

html.light .info-card,
html.light .action-card,
html.light .login-card,
html.light .welcome-card,
html.light .empty-state,
html.light .fortune-result-card,
html.light .saju-basic-info,
html.light .saju-analysis-card {
    background: var(--theme-card);
    border-color: var(--theme-border);
    color: var(--theme-text);
}

html.light .mystic-text,
html.light .mystic-text-gold {
    color: var(--theme-text);
}

html.light .text-accent {
    color: var(--theme-text-muted);
}

html.light .section-title,
html.light .page-title,
html.light .empty-state-title,
html.light .fortune-card-content h3,
html.light .lucky-numbers-title {
    color: var(--theme-text);
}

html.light .empty-state-description,
html.light .fortune-card-content p,
html.light .lucky-numbers-description {
    color: var(--theme-text-muted);
}

/* ===========================================
   Theme Transition
   =========================================== */
html {
    transition: background-color 0.3s ease, color 0.3s ease;
}

body {
    transition: background 0.3s ease, color 0.3s ease;
}

.info-card,
.action-card,
.login-card,
.welcome-card,
.empty-state,
.fortune-result-card,
.saju-basic-info,
.saju-analysis-card {
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

/* ===========================================
   Seasonal Themes (Optional)
   =========================================== */
html.spring {
    --color-primary: #10b981;
    --color-gold: #f59e0b;
    --color-jade: #34d399;
}

html.summer {
    --color-primary: #3b82f6;
    --color-gold: #fbbf24;
    --color-jade: #06b6d4;
}

html.autumn {
    --color-primary: #f97316;
    --color-gold: #eab308;
    --color-jade: #84cc16;
}

html.winter {
    --color-primary: #8b5cf6;
    --color-gold: #fbbf24;
    --color-jade: #06b6d4;
}

/* ===========================================
   Accessibility Themes
   =========================================== */
html.high-contrast {
    --color-primary: #ffffff;
    --color-gold: #ffff00;
    --color-text-dark: #ffffff;
    --color-text-muted-dark: #cccccc;
    --color-background-dark: #000000;
    --color-card-dark: #1a1a1a;
}

html.high-contrast body {
    background: #000000;
    color: #ffffff;
}

html.high-contrast .info-card,
html.high-contrast .action-card,
html.high-contrast .login-card,
html.high-contrast .welcome-card {
    background: #1a1a1a;
    border-color: #ffffff;
    color: #ffffff;
}