/* Dark Mode Styles */

/* Dark mode toggle button */
.dark-mode-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #fff;
    border: 2px solid #e0e0e0;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    z-index: 1000;
}

.dark-mode-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

/* Dark mode color variables */
body.dark-mode {
    --bg-color: #1a1a1a;
    --text-color: #e0e0e0;
    --card-bg: #2d2d2d;
    --border-color: #404040;
    --input-bg: #3a3a3a;
    --button-bg: #4a90e2;
    --button-hover: #357abd;
    --shadow: rgba(0,0,0,0.5);
}

/* Apply dark mode styles */
body.dark-mode {
    background-color: var(--bg-color);
    color: var(--text-color);
}

body.dark-mode .container {
    background-color: var(--bg-color);
}

body.dark-mode header {
    background-color: var(--card-bg);
    border-bottom-color: var(--border-color);
}

body.dark-mode .site-nav a {
    color: var(--text-color);
}

body.dark-mode .logo {
    color: #4a90e2;
}

body.dark-mode .search-section {
    background-color: var(--card-bg);
}

body.dark-mode .search-box input {
    background-color: var(--input-bg);
    color: var(--text-color);
    border-color: var(--border-color);
}

body.dark-mode .search-box input::placeholder {
    color: #999;
}

body.dark-mode .calculator-grid,
body.dark-mode .calculator-form,
body.dark-mode .results-section,
body.dark-mode .info-section,
body.dark-mode .related-section {
    background-color: var(--card-bg);
    border-color: var(--border-color);
}

body.dark-mode .calc-button,
body.dark-mode button {
    background-color: var(--button-bg);
    color: #fff;
}

body.dark-mode .calc-button:hover,
body.dark-mode button:hover {
    background-color: var(--button-hover);
}

body.dark-mode #display,
body.dark-mode input[type="number"],
body.dark-mode input[type="text"],
body.dark-mode select {
    background-color: var(--input-bg);
    color: var(--text-color);
    border-color: var(--border-color);
}

body.dark-mode .result-card {
    background-color: var(--input-bg);
    border-color: var(--border-color);
}

body.dark-mode .calc-display {
    background-color: var(--input-bg);
    color: var(--text-color);
}

body.dark-mode .language-card {
    background-color: var(--card-bg);
    border-color: var(--border-color);
}

body.dark-mode .language-card:hover {
    border-color: #4a90e2;
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

body.dark-mode .category-links a {
    background-color: var(--card-bg);
    color: var(--text-color);
    border-color: var(--border-color);
}

body.dark-mode .category-links a:hover {
    background-color: var(--input-bg);
    border-color: #4a90e2;
}

body.dark-mode footer {
    background-color: var(--card-bg);
    border-top-color: var(--border-color);
}

body.dark-mode .footer-links a {
    color: var(--text-color);
}

body.dark-mode .formula {
    background-color: var(--input-bg);
    border-left-color: #4a90e2;
}

body.dark-mode .breadcrumb {
    color: #999;
}

body.dark-mode .breadcrumb a {
    color: #4a90e2;
}

body.dark-mode .related-card {
    background-color: var(--input-bg);
    border-color: var(--border-color);
}

body.dark-mode .related-card:hover {
    border-color: #4a90e2;
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

/* Dark mode toggle button in dark mode */
body.dark-mode .dark-mode-toggle {
    background-color: var(--card-bg);
    border-color: var(--border-color);
    color: var(--text-color);
}

/* Smooth transitions for theme switching */
body,
.container,
header,
.search-section,
.calculator-grid,
.calculator-form,
.results-section,
.info-section,
.related-section,
.language-card,
.category-links a,
footer,
.calc-button,
button,
input,
select,
.result-card,
.calc-display {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Mobile responsive for dark mode toggle */
@media (max-width: 768px) {
    .dark-mode-toggle {
        width: 45px;
        height: 45px;
        font-size: 20px;
        bottom: 15px;
        right: 15px;
    }
}