/* ===================================
   Traditional Chinese Bazi Analysis
   Modern UI with Traditional Aesthetic
   =================================== */

:root {
    /* Traditional Chinese Colors */
    --imperial-red: #C8102E;
    --chinese-gold: #D4AF37;
    --jade-green: #00A86B;
    --ink-black: #1C1C1C;
    --rice-paper: #F5F3EE;
    --cinnabar: #E34234;
    --vermilion: #D2042D;
    
    /* Modern Palette */
    --primary: #C8102E;
    --secondary: #D4AF37;
    --accent: #00A86B;
    --bg-main: #F5F3EE;
    --bg-card: #FFFFFF;
    --text-primary: #1C1C1C;
    --text-secondary: #5A5A5A;
    --border: #E0DDD8;
    --shadow: rgba(0, 0, 0, 0.08);
    
    /* Five Elements Colors */
    --wood: #2E7D32;
    --fire: #D32F2F;
    --earth: #795548;
    --metal: #757575;
    --water: #0277BD;
}

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

body {
    font-family: 'Noto Sans SC', 'Noto Serif SC', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    position: relative;
}

/* Traditional Pattern Background */
.bg-pattern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.03;
    background-image: 
        repeating-linear-gradient(0deg, transparent, transparent 35px, var(--chinese-gold) 35px, var(--chinese-gold) 36px),
        repeating-linear-gradient(90deg, transparent, transparent 35px, var(--chinese-gold) 35px, var(--chinese-gold) 36px);
    pointer-events: none;
    z-index: -1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--imperial-red) 0%, var(--vermilion) 100%);
    color: white;
    padding: 3rem 0;
    box-shadow: 0 4px 20px var(--shadow);
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.header-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.title {
    margin-bottom: 1rem;
}

.chinese-title {
    display: block;
    font-family: 'Noto Serif SC', serif;
    font-size: 3rem;
    font-weight: 700;
    letter-spacing: 0.5rem;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.english-subtitle {
    display: block;
    font-size: 1.3rem;
    font-weight: 300;
    letter-spacing: 0.1rem;
    opacity: 0.95;
}

.tagline {
    font-size: 1rem;
    opacity: 0.9;
    font-weight: 300;
}

/* Main Content */
.main-content {
    padding: 3rem 0;
    min-height: calc(100vh - 400px);
}

/* Card Styles */
.card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 2.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 2px 12px var(--shadow);
    border: 1px solid var(--border);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--shadow);
}

.section-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 2px solid var(--chinese-gold);
    padding-bottom: 0.75rem;
}

.section-title .icon {
    font-size: 2rem;
}

/* Form Styles */
.bazi-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.form-group input,
.form-group select {
    padding: 0.75rem 1rem;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    background: white;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(200, 16, 46, 0.1);
}

.form-group small {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Buttons */
.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.btn-primary,
.btn-secondary {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
    font-weight: 500;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--imperial-red) 0%, var(--cinnabar) 100%);
    color: white;
    flex: 1;
    justify-content: center;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(200, 16, 46, 0.3);
}

.btn-secondary {
    background: white;
    color: var(--text-primary);
    border: 2px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-main);
    border-color: var(--primary);
}

/* Loading State */
.loading-state {
    text-align: center;
    padding: 4rem 2rem;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1.5rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Four Pillars Display */
.four-pillars {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.pillar {
    text-align: center;
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--bg-main) 0%, white 100%);
    border-radius: 12px;
    border: 2px solid var(--chinese-gold);
    position: relative;
    overflow: hidden;
}

.pillar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--imperial-red), var(--chinese-gold), var(--jade-green));
}

.pillar-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.1rem;
    color: var(--primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.pillar-chars {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.pillar-char {
    font-family: 'Noto Serif SC', serif;
    font-size: 2.5rem;
    font-weight: 700;
    padding: 0.75rem;
    border-radius: 8px;
    position: relative;
}

.heavenly-stem {
    background: linear-gradient(135deg, #FFE5E5 0%, #FFD0D0 100%);
    color: var(--imperial-red);
}

.earthly-branch {
    background: linear-gradient(135deg, #E5F3FF 0%, #D0E7FF 100%);
    color: var(--water);
}

.char-element {
    font-size: 0.8rem;
    margin-top: 0.5rem;
    font-weight: 500;
    opacity: 0.8;
}

/* Five Elements Display */
.five-elements {
    margin-top: 1.5rem;
}

.elements-chart {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.element-item {
    text-align: center;
    padding: 1.5rem 1rem;
    border-radius: 12px;
    color: white;
    font-weight: 500;
    transition: transform 0.3s ease;
}

.element-item:hover {
    transform: scale(1.05);
}

.element-wood { background: linear-gradient(135deg, #2E7D32 0%, #388E3C 100%); }
.element-fire { background: linear-gradient(135deg, #D32F2F 0%, #E53935 100%); }
.element-earth { background: linear-gradient(135deg, #795548 0%, #8D6E63 100%); }
.element-metal { background: linear-gradient(135deg, #757575 0%, #9E9E9E 100%); }
.element-water { background: linear-gradient(135deg, #0277BD 0%, #0288D1 100%); }

.element-name {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-family: 'Noto Serif SC', serif;
}

.element-count {
    font-size: 2rem;
    font-weight: 700;
}

.element-strength {
    margin-top: 0.5rem;
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Analysis Content */
.analysis-content {
    line-height: 1.8;
}

.analysis-section {
    margin-bottom: 2rem;
}

.analysis-section h3 {
    font-family: 'Noto Serif SC', serif;
    font-size: 1.3rem;
    color: var(--primary);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.analysis-section p {
    margin-bottom: 0.75rem;
    color: var(--text-primary);
    text-align: justify;
}

.analysis-section ul {
    list-style: none;
    padding-left: 0;
}

.analysis-section li {
    padding: 0.5rem 0 0.5rem 1.5rem;
    position: relative;
}

.analysis-section li::before {
    content: '◆';
    position: absolute;
    left: 0;
    color: var(--chinese-gold);
}

/* Recommendations */
.recommendations-content {
    display: grid;
    gap: 1.5rem;
}

.recommendation-item {
    padding: 1.5rem;
    background: var(--bg-main);
    border-radius: 12px;
    border-left: 4px solid var(--chinese-gold);
}

.recommendation-item h3 {
    font-family: 'Noto Serif SC', serif;
    color: var(--primary);
    margin-bottom: 0.75rem;
    font-size: 1.2rem;
}

.recommendation-item p {
    color: var(--text-primary);
    line-height: 1.7;
}

/* Ten Gods Display */
.tengods-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.tengod-item {
    padding: 1rem;
    background: var(--bg-main);
    border-radius: 8px;
    border: 1px solid var(--border);
}

.tengod-name {
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.tengod-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Footer */
.footer {
    background: var(--ink-black);
    color: white;
    padding: 2rem 0;
    text-align: center;
    margin-top: 4rem;
}

.footer p {
    margin: 0.5rem 0;
}

.footer-note {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .chinese-title {
        font-size: 2rem;
        letter-spacing: 0.3rem;
    }
    
    .english-subtitle {
        font-size: 1rem;
    }
    
    .card {
        padding: 1.5rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .four-pillars {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pillar-char {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .four-pillars {
        grid-template-columns: 1fr;
    }
    
    .elements-chart {
        grid-template-columns: 1fr;
    }
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .input-section {
        display: none;
    }
    
    .card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
}