:root {
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --accent-color: #7289da;
    --section-bg: #1e1e1e;
    --input-bg: #2a2a2a;
    --card-bg: rgba(255, 255, 255, 0.05);
    --muted-color: rgba(255, 255, 255, 0.6);
    --border-color: rgba(255, 255, 255, 0.1);
}

/* Light theme variables - applied when light-theme class is present */
:root.light-theme {
    --bg-color: #f5f5f5;
    --text-color: #333333;
    --accent-color: #5865f2;
    --section-bg: #ffffff;
    --input-bg: #ffffff;
    --card-bg: rgba(0, 0, 0, 0.03);
    --muted-color: rgba(0, 0, 0, 0.6);
    --border-color: rgba(0, 0, 0, 0.1);
}

/* System preference - only applies when no manual theme class is present */
@media (prefers-color-scheme: light) {
    :root:not(.dark-theme):not(.light-theme) {
        --bg-color: #f5f5f5;
        --text-color: #333333;
        --accent-color: #5865f2;
        --section-bg: #ffffff;
        --input-bg: #ffffff;
        --card-bg: rgba(0, 0, 0, 0.03);
        --muted-color: rgba(0, 0, 0, 0.6);
        --border-color: rgba(0, 0, 0, 0.1);
    }
}

/* Dark theme variables - applied when dark-theme class is present */
:root.dark-theme {
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --accent-color: #7289da;
    --section-bg: #1e1e1e;
    --input-bg: #2a2a2a;
    --card-bg: rgba(255, 255, 255, 0.05);
    --muted-color: rgba(255, 255, 255, 0.6);
    --border-color: rgba(255, 255, 255, 0.1);
}

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

html, 
body {
    width: 100%;
    min-height: 100vh;
}

body {
    color: var(--text-color);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    background-color: var(--bg-color);
}

/* Particles background */
#particles-js {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    z-index: -1;
    background-color: var(--bg-color);
    transition: background-color 0.3s ease;
    pointer-events: none; /* Ensure clicks pass through to elements below */
}

/* Make particles more visible in light mode */
:root.light-theme #particles-js {
    opacity: 0.7;
}

.navbar {
    background-color: var(--section-bg);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    color: var(--accent-color);
    font-weight: bold;
}

.nav-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-link {
    color: var(--text-color) !important;
    transition: color 0.3s;
}

.nav-link:hover {
    color: var(--accent-color) !important;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

section {
    margin: 4rem 0;
    padding: 2rem;
    background-color: var(--section-bg);
    border-radius: 8px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
}

h1, h2, h3 {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

h2 {
    color: var(--accent-color);
}

.app-card {
    background-color: var(--card-bg);
    border-radius: 6px;
    margin: 1rem 0;
    border: 1px solid var(--border-color);
    transition: transform 0.2s;
}

.app-card:hover {
    transform: translateY(-5px);
}

.card-title {
    color: var(--accent-color);
}

.card-text {
    color: var(--text-color);
}

.app-icon {
    max-width: 80px;
    height: auto;
    border-radius: 12px;
}

footer {
    text-align: center;
    padding: 2rem;
    background-color: var(--section-bg);
    margin-top: 4rem;
}

.footer-link {
    color: var(--accent-color);
    text-decoration: none;
    transition: opacity 0.3s;
}

.footer-link:hover {
    color: var(--accent-color);
    opacity: 0.8;
}

.custom-input {
    background-color: var(--input-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
}

.custom-input:focus {
    background-color: var(--input-bg);
    border-color: var(--accent-color);
    color: var(--text-color);
    box-shadow: 0 0 0 0.25rem rgba(88, 101, 242, 0.25);
}

.custom-btn {
    background-color: var(--accent-color);
    color: white;
    border: none;
    padding: 0.5rem 1.5rem;
    transition: opacity 0.3s;
}

.custom-btn:hover {
    background-color: var(--accent-color);
    color: white;
    opacity: 0.9;
}

.text-muted {
    color: var(--muted-color) !important;
}

.contact-link {
    color: var(--accent-color);
    text-decoration: none;
    font-size: 1.2rem;
    transition: opacity 0.3s;
}

.contact-link:hover {
    color: var(--accent-color);
    opacity: 0.8;
}

.theme-toggle {
    background-color: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    margin-left: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-color);
    border-radius: 50%;
    transition: background-color 0.3s;
    width: 40px;
    height: 40px;
    position: relative;
}

.theme-toggle:hover {
    background-color: rgba(128, 128, 128, 0.1);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    stroke: var(--text-color);
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.moon-icon, .sun-icon {
    width: 20px;
    height: 20px;
}

.theme-btn {
    background-color: var(--accent-color);
    color: white;
    margin-left: 1rem;
    transition: opacity 0.3s;
}

.theme-btn:hover {
    background-color: var(--accent-color);
    color: white;
    opacity: 0.9;
}

.theme-btn:focus {
    box-shadow: none;
}

.theme-icon {
    width: 18px;
    height: 18px;
}

/* Privacy Policy Styles */
#website-policy, #hayakana-policy, #general-policy {
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

#website-policy h3, #hayakana-policy h3, #general-policy h3 {
    font-size: 1.5rem;
}

.privacy-toc {
    background-color: var(--card-bg);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 2rem;
}