/* Reset Default Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-gradient-from) 0%, var(--bg-gradient-to) 100%);
    padding: 1rem;
    transition: all 0.3s ease;
}

/* Theme Variables */
:root {
    --bg-gradient-from: #f5f7fa;
    --bg-gradient-to: #e4e8f0;
    --card-bg: #ffffff;
    --card-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-muted: #888888;
    --button-bg: #24292e;
    --button-text: #ffffff;
    --button-hover: #2c3137;
    --border-color: #f0f0f0;
    --icon-bg: #f5f7fa;
    --footer-bg: #f5f7fa;
    --footer-text: #666666;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg-gradient-from: #1a1a2e;
        --bg-gradient-to: #16213e;
        --card-bg: #0f3460;
        --card-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
        --text-primary: #e7e7e7;
        --text-secondary: #b8b8b8;
        --text-muted: #a0a0a0;
        --button-bg: #e94560;
        --button-text: #ffffff;
        --button-hover: #d5405a;
        --border-color: #2a2a4a;
        --icon-bg: #16213e;
        --footer-bg: #16213e;
        --footer-text: #b8b8b8;
    }
}

/* Card Container */
.card-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    width: 100%;
    max-width: 1200px;
    padding: 1rem;
}

/* Card Styles */
.card {
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    overflow: hidden;
    transition: transform 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease;
    text-decoration: none;
    color: var(--text-primary);
    min-height: 200px;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-5px);
}

.card-header {
    padding: 1.5rem;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

.card-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.card-content {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    flex-grow: 1;
}

.email-banner {
    text-align: center;
    color: var(--text-secondary);
}

.email-banner a {
    color: var(--button-bg);
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
}

.email-banner a:hover {
    color: var(--button-hover);
}

.documents .document {
    padding: 10px;
    background: var(--icon-bg);
    border-radius: 8px;
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.documents .document:hover {
    background-color: var(--border-color);
    transform: scale(1.02);
}

.documents .document a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
}

.documents .document a:hover {
    color: var(--button-bg);
}

/* Fixed Home Button */
.fixed-home-button {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: var(--button-bg);
    color: var(--button-text);
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: background-color 0.3s ease, transform 0.3s ease;
}

.fixed-home-button:hover {
    background-color: var(--button-hover);
    transform: scale(1.1);
}

.fixed-home-button img {
    width: 24px;
    height: 24px;
    filter: invert(1);
}