/* ============================================
   CSS Custom Properties for Theme Switching
   ============================================ */

:root {
    /* Light Mode Colors (Default) */
    --bg-primary: #f0f0f1;
    --bg-secondary: #f8f9fa;
    --bg-white: #ffffff;
    --bg-warning: #fff3cd;
    --bg-success: #d7f0db;
    --bg-info: #e0f2ff;
    --bg-purple: #e7dff6;
    --bg-yellow: #fcf0cd;

    --text-primary: #1d2327;
    --text-secondary: #50575e;
    --text-link: #2271b1;
    --text-link-hover: #ffffff;

    --border-primary: #c3c4c7;
    --border-accent: #2271b1;
    --border-success: #00a32a;
    --border-warning: #ffc107;

    --badge-client-bg: #d7f0db;
    --badge-client-text: #1e4620;
    --badge-admin-bg: #fcf0cd;
    --badge-admin-text: #997404;
    --badge-volunteer-bg: #e0f2ff;
    --badge-volunteer-text: #004085;
    --badge-coordinator-bg: #e7dff6;
    --badge-coordinator-text: #50248f;
    --badge-new-bg: #00a32a;
    --badge-new-text: #ffffff;

    --link-bg: #ffffff;
    --link-bg-hover: #2271b1;
    --link-border: #c3c4c7;
}

/* Dark Mode Colors */
[data-theme="dark"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2c2c2c;
    --bg-white: #383838;
    --bg-warning: #4a3f00;
    --bg-success: #1e4620;
    --bg-info: #1a3a52;
    --bg-purple: #3a2a52;
    --bg-yellow: #4a3f00;

    --text-primary: #e0e0e0;
    --text-secondary: #b0b0b0;
    --text-link: #5b9dd9;
    --text-link-hover: #ffffff;

    --border-primary: #4a4a4a;
    --border-accent: #5b9dd9;
    --border-success: #46b450;
    --border-warning: #ffb900;

    --badge-client-bg: #2a4a2d;
    --badge-client-text: #90ee90;
    --badge-admin-bg: #4a3f00;
    --badge-admin-text: #ffd966;
    --badge-volunteer-bg: #1a3a52;
    --badge-volunteer-text: #87ceeb;
    --badge-coordinator-bg: #3a2a52;
    --badge-coordinator-text: #dda0dd;
    --badge-new-bg: #46b450;
    --badge-new-text: #ffffff;

    --link-bg: #2c2c2c;
    --link-bg-hover: #5b9dd9;
    --link-border: #4a4a4a;
}

/* Auto Dark Mode based on system preference */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg-primary: #1a1a1a;
        --bg-secondary: #2c2c2c;
        --bg-white: #383838;
        --bg-warning: #4a3f00;
        --bg-success: #1e4620;
        --bg-info: #1a3a52;
        --bg-purple: #3a2a52;
        --bg-yellow: #4a3f00;

        --text-primary: #e0e0e0;
        --text-secondary: #b0b0b0;
        --text-link: #5b9dd9;
        --text-link-hover: #ffffff;

        --border-primary: #4a4a4a;
        --border-accent: #5b9dd9;
        --border-success: #46b450;
        --border-warning: #ffb900;

        --badge-client-bg: #2a4a2d;
        --badge-client-text: #90ee90;
        --badge-admin-bg: #4a3f00;
        --badge-admin-text: #ffd966;
        --badge-volunteer-bg: #1a3a52;
        --badge-volunteer-text: #87ceeb;
        --badge-coordinator-bg: #3a2a52;
        --badge-coordinator-text: #dda0dd;
        --badge-new-bg: #46b450;
        --badge-new-text: #ffffff;

        --link-bg: #2c2c2c;
        --link-bg-hover: #5b9dd9;
        --link-border: #4a4a4a;
    }
}

/* ============================================
   Base Styles Using CSS Variables
   ============================================ */

body {
    margin: 0;
    padding: 0;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

#must-content-wrapper {
    min-height: 100vh;
    background-color: var(--bg-primary);
}

/* Dark Mode Toggle Button */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    padding: 10px 16px;
    background: var(--link-bg);
    border: 2px solid var(--border-primary);
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.theme-toggle:hover {
    background: var(--link-bg-hover);
    color: var(--text-link-hover);
    border-color: var(--border-accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.theme-toggle::before {
    content: '🌙 Dark Mode';
}

[data-theme="dark"] .theme-toggle::before {
    content: '☀️ Light Mode';
}

/* Dev Navigation Container */
.dev-nav-container {
    max-width: 1200px;
    margin: 40px auto;
    padding: 20px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.dev-nav-section {
    background: var(--bg-secondary);
    border-left: 4px solid var(--border-accent);
    padding: 20px;
    margin-bottom: 30px;
    border-radius: 4px;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.dev-nav-section h2 {
    margin-top: 0;
    color: var(--text-primary);
    font-size: 24px;
}

.dev-nav-section h3 {
    color: var(--text-secondary);
    font-size: 18px;
    margin: 15px 0 10px 0;
}

.dev-nav-section ul {
    color: var(--text-primary);
}

.dev-nav-section p {
    color: var(--text-primary);
}

.dev-nav-section code {
    background: var(--bg-primary);
    color: var(--text-link);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
}

/* Link Grid Layout */
.dev-nav-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Responsive grid for larger screens */
@media (min-width: 768px) {
    .dev-nav-links {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }
}

@media (min-width: 1200px) {
    .dev-nav-links {
        grid-template-columns: repeat(3, 1fr);
    }
}

.dev-nav-link {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    background: var(--link-bg);
    border: 1px solid var(--link-border);
    border-radius: 4px;
    text-decoration: none;
    color: var(--text-link);
    font-weight: 500;
    transition: all 0.2s ease;
    min-height: 48px;
}

.dev-nav-link:hover {
    background: var(--link-bg-hover);
    color: var(--text-link-hover);
    border-color: var(--border-accent);
    transform: translateX(4px);
}

.dev-nav-link.new-feature {
    border-left: 4px solid var(--border-success);
}

/* Role Badges */
.dev-role-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 3px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    margin-left: 8px;
    transition: all 0.3s ease;
}

.badge-client {
    background: var(--badge-client-bg);
    color: var(--badge-client-text);
}

.badge-admin {
    background: var(--badge-admin-bg);
    color: var(--badge-admin-text);
}

.badge-volunteer {
    background: var(--badge-volunteer-bg);
    color: var(--badge-volunteer-text);
}

.badge-coordinator {
    background: var(--badge-coordinator-bg);
    color: var(--badge-coordinator-text);
}

.badge-new {
    background: var(--badge-new-bg);
    color: var(--badge-new-text);
}

/* Warning Banner */
.dev-warning {
    background: var(--bg-warning);
    border-left: 4px solid var(--border-warning);
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 4px;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.dev-warning strong {
    color: var(--text-primary);
}