/* ============================================
   DARK THEME
   ============================================ */

[data-theme="dark"] {
    /* Dark Color Palette */
    --color-bg: hsl(240, 15%, 8%);
    --color-surface: hsl(240, 12%, 12%);
    --color-text: hsl(0, 0%, 95%);
    --color-text-muted: hsl(0, 0%, 65%);
    --color-border: hsl(240, 10%, 20%);

    /* Restore brighter semantic colors for dark mode decorative use */
    --color-secondary: hsl(200, 80%, 55%);
    --color-success: hsl(150, 65%, 50%);
    --color-warning: hsl(40, 90%, 60%);
    --color-error: hsl(0, 75%, 60%);
    --color-error-bg: hsl(0, 75%, 15%);
    --color-warning-text: hsl(40, 80%, 70%);
    --color-success-text: hsl(150, 65%, 60%);

    /* Adjust gradients for dark mode */
    --gradient-hero: linear-gradient(135deg,
            hsl(270, 70%, 45%) 0%,
            hsl(290, 75%, 40%) 50%,
            hsl(320, 75%, 50%) 100%);

    --overlay-calculator-bg: rgba(20, 20, 30, 0.95);
}

/* Dark mode for Calculator Overlay */
[data-theme="dark"] .calculator-card-overlay .calculator-card {
    background: var(--overlay-calculator-bg) !important;
    border: 1px solid var(--color-border);
}

[data-theme="dark"] .navbar {
    background: rgba(20, 20, 30, 0.95);
    border-bottom-color: var(--color-border);
}

[data-theme="dark"] .calculator-card,
[data-theme="dark"] .result-card,
[data-theme="dark"] .calculator-link-card,
[data-theme="dark"] .core-number-card,
[data-theme="dark"] .master-number-card {
    background: var(--color-surface);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

[data-theme="dark"] .form-group input,
[data-theme="dark"] .form-group select,
[data-theme="dark"] .form-group textarea {
    background: hsl(240, 12%, 15%);
    border-color: var(--color-border);
    color: var(--color-text);
}

[data-theme="dark"] .lucky-item {
    background: hsl(240, 12%, 15%);
}

[data-theme="dark"] .error-message {
    background: hsl(0, 75%, 15%);
    color: hsl(0, 75%, 80%);
}

/* Dark mode theme toggle icon */
[data-theme="dark"] .theme-icon::before {
    content: '☀️';
}

.theme-icon::before {
    content: '🌙';
}

/* About Page Dark Mode Overrides */
[data-theme="dark"] .core-number-card.variant-purple {
    background: linear-gradient(135deg, hsl(270, 40%, 15%), hsl(270, 40%, 10%));
    border-left-color: hsl(270, 60%, 50%);
}

[data-theme="dark"] .core-number-card.variant-purple h3 {
    color: hsl(270, 80%, 75%);
}

[data-theme="dark"] .core-number-card.variant-blue {
    background: linear-gradient(135deg, hsl(200, 50%, 15%), hsl(200, 50%, 10%));
    border-left-color: hsl(200, 70%, 50%);
}

[data-theme="dark"] .core-number-card.variant-blue h3 {
    color: hsl(200, 80%, 75%);
}

[data-theme="dark"] .core-number-card.variant-pink {
    background: linear-gradient(135deg, hsl(320, 45%, 15%), hsl(320, 45%, 10%));
    border-left-color: hsl(320, 65%, 55%);
}

[data-theme="dark"] .core-number-card.variant-pink h3 {
    color: hsl(320, 80%, 75%);
}

[data-theme="dark"] .core-number-card.variant-green {
    background: linear-gradient(135deg, hsl(140, 40%, 15%), hsl(140, 40%, 10%));
    border-left-color: hsl(140, 60%, 45%);
}

[data-theme="dark"] .core-number-card.variant-green h3 {
    color: hsl(140, 80%, 75%);
}

/* Master Numbers Dark Mode Overrides */
[data-theme="dark"] .master-number-card.variant-11 {
    background: linear-gradient(135deg, hsl(270, 40%, 15%), hsl(270, 40%, 10%));
    border-left-color: hsl(270, 60%, 50%);
}

[data-theme="dark"] .master-number-card.variant-11 h3 {
    color: hsl(270, 80%, 75%);
}

[data-theme="dark"] .master-number-card.variant-22 {
    background: linear-gradient(135deg, hsl(200, 50%, 15%), hsl(200, 50%, 10%));
    border-left-color: hsl(200, 70%, 50%);
}

[data-theme="dark"] .master-number-card.variant-22 h3 {
    color: hsl(200, 80%, 75%);
}

[data-theme="dark"] .master-number-card.variant-33 {
    background: linear-gradient(135deg, hsl(320, 45%, 15%), hsl(320, 45%, 10%));
    border-left-color: hsl(320, 65%, 55%);
}

[data-theme="dark"] .master-number-card.variant-33 h3 {
    color: hsl(320, 80%, 75%);
}

/* Lo Shu Grid Dark Mode Overrides */
[data-theme="dark"] .loshu-cell {
    background: hsl(240, 15%, 15%);
    border-color: var(--color-border);
}

[data-theme="dark"] .detail-item.strength {
    background: linear-gradient(to right, hsl(150, 40%, 15%), hsl(150, 40%, 10%));
    border-left-color: hsl(150, 60%, 50%);
}

[data-theme="dark"] .detail-item.challenge {
    background: linear-gradient(to right, hsl(40, 40%, 15%), hsl(40, 40%, 10%));
    border-left-color: hsl(40, 80%, 60%);
}

[data-theme="dark"] .plane-item.completed {
    background: linear-gradient(to right, hsl(140, 40%, 15%), hsl(140, 40%, 10%));
    border-left-color: hsl(140, 60%, 50%);
}

[data-theme="dark"] .detail-number {
    background: hsl(240, 15%, 20%);
    color: hsl(270, 80%, 75%);
}

[data-theme="dark"] .detail-number.missing {
    background: hsl(240, 10%, 15%);
    color: hsl(240, 5%, 50%);
}

[data-theme="dark"] .detail-freq {
    background: rgba(147, 51, 234, 0.2);
    color: hsl(270, 80%, 80%);
}

/* Lucky Name Page Dark Mode Overrides */
[data-theme="dark"] .lucky-guide-card {
    background: var(--color-surface);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

[data-theme="dark"] .lucky-guide-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 12px rgba(0, 0, 0, 0.4);
}

/* Variant Specifics: Colored Border + Text */
[data-theme="dark"] .lucky-guide-card.variant-red {
    border-color: rgba(220, 38, 38, 0.5);
    background: linear-gradient(135deg, rgba(220, 38, 38, 0.1), transparent);
}

[data-theme="dark"] .lucky-guide-card.variant-red .lucky-number {
    color: hsl(0, 80%, 70%);
    text-shadow: 0 0 10px rgba(220, 38, 38, 0.4);
}

[data-theme="dark"] .lucky-guide-card.variant-orange {
    border-color: rgba(249, 115, 22, 0.5);
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.1), transparent);
}

[data-theme="dark"] .lucky-guide-card.variant-orange .lucky-number {
    color: hsl(30, 90%, 70%);
    text-shadow: 0 0 10px rgba(249, 115, 22, 0.4);
}

[data-theme="dark"] .lucky-guide-card.variant-green {
    border-color: rgba(34, 197, 94, 0.5);
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), transparent);
}

[data-theme="dark"] .lucky-guide-card.variant-green .lucky-number {
    color: hsl(140, 80%, 70%);
    text-shadow: 0 0 10px rgba(34, 197, 94, 0.4);
}

[data-theme="dark"] .lucky-guide-card.variant-blue {
    border-color: rgba(14, 165, 233, 0.5);
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.1), transparent);
}

[data-theme="dark"] .lucky-guide-card.variant-blue .lucky-number {
    color: hsl(200, 90%, 70%);
    text-shadow: 0 0 10px rgba(14, 165, 233, 0.4);
}

[data-theme="dark"] .lucky-guide-card.variant-purple {
    border-color: rgba(168, 85, 247, 0.5);
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.1), transparent);
}

[data-theme="dark"] .lucky-guide-card.variant-purple .lucky-number {
    color: hsl(270, 80%, 75%);
    text-shadow: 0 0 10px rgba(168, 85, 247, 0.4);
}

[data-theme="dark"] .lucky-guide-card.variant-gold {
    border-color: rgba(234, 179, 8, 0.5);
    background: linear-gradient(135deg, rgba(234, 179, 8, 0.1), transparent);
}

[data-theme="dark"] .lucky-guide-card.variant-gold .lucky-number {
    color: hsl(45, 90%, 70%);
    text-shadow: 0 0 10px rgba(234, 179, 8, 0.4);
}

/* ============================================
   NUMEROLOGY TYPE SELECTOR - DARK THEME
   ============================================ */
[data-theme="dark"] .numerology-type-selector {
    background: linear-gradient(135deg,
            hsl(270, 40%, 15%) 0%,
            hsl(320, 45%, 18%) 100%);
    border-color: hsl(270, 30%, 25%);
    box-shadow: 0 2px 8px rgba(147, 51, 234, 0.2);
}

[data-theme="dark"] .numerology-type-selector:hover {
    box-shadow: 0 4px 12px rgba(147, 51, 234, 0.3);
    border-color: var(--color-primary-light);
}

[data-theme="dark"] .selector-label {
    color: hsl(0, 0%, 95%);
}

[data-theme="dark"] .numerology-option {
    background: hsl(240, 15%, 12%);
    border-color: hsl(240, 10%, 25%);
}

[data-theme="dark"] .numerology-option:hover {
    border-color: var(--color-primary-light);
    box-shadow: 0 4px 12px rgba(147, 51, 234, 0.25);
}

[data-theme="dark"] .option-name {
    color: hsl(0, 0%, 90%);
}

[data-theme="dark"] .option-desc {
    color: hsl(0, 0%, 60%);
}

[data-theme="dark"] .option-checkmark {
    background: hsl(240, 10%, 20%);
}

[data-theme="dark"] .numerology-option:has(input[type="radio"]:checked) {
    background: linear-gradient(135deg,
            hsl(270, 40%, 18%) 0%,
            hsl(320, 45%, 20%) 100%);
    border-color: var(--color-primary);
    box-shadow: 0 4px 16px rgba(147, 51, 234, 0.3);
}

[data-theme="dark"] .numerology-option input[type="radio"]:checked~.option-content .option-name {
    color: var(--color-primary-light);
}

/* ============================================
   SEO CONTENT SECTION - DARK THEME
   ============================================ */
[data-theme="dark"] .seo-content-section {
    background: linear-gradient(135deg,
            hsl(240, 15%, 8%) 0%,
            hsl(270, 30%, 12%) 50%,
            hsl(240, 15%, 8%) 100%);
    border-top-color: hsl(240, 10%, 20%);
}

[data-theme="dark"] .seo-content-main h2 {
    color: hsl(0, 0%, 95%);
}

[data-theme="dark"] .seo-content-main p {
    color: hsl(0, 0%, 85%);
}

[data-theme="dark"] .seo-content-main strong {
    color: var(--color-primary-light);
}

[data-theme="dark"] .seo-content-sidebar {
    background: hsl(240, 15%, 12%);
    border-left-color: var(--color-primary);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .seo-content-sidebar h3 {
    color: hsl(0, 0%, 90%);
}

[data-theme="dark"] .seo-keywords-list li {
    color: hsl(0, 0%, 70%);
    border-bottom-color: hsl(240, 10%, 20%);
}

[data-theme="dark"] .seo-keywords-list li:hover {
    color: var(--color-primary-light);
}

[data-theme="dark"] .seo-content-footer {
    background: hsl(240, 15%, 12%);
    border-color: hsl(240, 10%, 20%);
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .seo-content-footer p {
    color: hsl(0, 0%, 85%);
}

[data-theme="dark"] .seo-content-footer strong {
    color: var(--color-primary-light);
}