/* Global or common styles for the entire application */

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4B0082; /* 深紫色主題 */
    --primary-light: #6A0DAD;
    --primary-dark: #2A004D;
    --secondary-color: #8A2BE2;
    --accent-color: #9370DB;
    --success-color: #4CAF50;
    --warning-color: #FF9800;
    --danger-color: #F44336;
    --info-color: #2196F3;
    --text-dark: #333333;
    --text-light: #FFFFFF;
    --text-muted: #757575;
    --border-color: #E0E0E0;
    --bg-light: #F5F5F5;
    --bg-white: #FFFFFF;
    --shadow: 0 2px 4px rgba(0,0,0,0.1);
}

body {
    font-family: 'Microsoft YaHei', 'PingFang TC', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
    font-size: 14px;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.container-fluid {
    width: 100%;
    padding-right: 15px;
    padding-left: 15px;
    margin-right: auto;
    margin-left: auto;
}

.main-content {
    padding: 20px 0;
    min-height: calc(100vh - 60px);  /* Subtract height of navbar */
}

.body-content {
    padding: 20px 0;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.text-right {
    text-align: right;
}

.text-left {
    text-align: left;
}

.mt-1 {
    margin-top: 0.25rem;
}

.mt-2 {
    margin-top: 0.5rem;
}

.mt-3 {
    margin-top: 1rem;
}

.mt-4 {
    margin-top: 1.5rem;
}

.mt-5 {
    margin-top: 3rem;
}

.mb-1 {
    margin-bottom: 0.25rem;
}

.mb-2 {
    margin-bottom: 0.5rem;
}

.mb-3 {
    margin-bottom: 1rem;
}

.mb-4 {
    margin-bottom: 1.5rem;
}

.mb-5 {
    margin-bottom: 3rem;
}

.p-1 {
    padding: 0.25rem;
}

.p-2 {
    padding: 0.5rem;
}

.p-3 {
    padding: 1rem;
}

.p-4 {
    padding: 1.5rem;
}

.p-5 {
    padding: 3rem;
}

/* Links & Buttons */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--primary-light);
    text-decoration: none;
}

.btn {
    display: inline-block;
    font-weight: 500;
    text-align: center;
    vertical-align: middle;
    user-select: none;
    border: 1px solid transparent;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    line-height: 1.5;
    border-radius: 0.25rem;
    transition: all 0.15s ease-in-out;
    cursor: pointer;
}

.btn-primary {
    color: var(--text-light);
    background-color: var(--primary-color);
    border-color: var(--primary-dark);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
}

.btn-secondary {
    color: var(--text-light);
    background-color: var(--secondary-color);
    border-color: var(--accent-color);
}

.btn-secondary:hover {
    background-color: var(--accent-color);
}

/* Cards */
.card {
    background-color: var(--bg-white);
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 1rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.card-header {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
}

.card-body {
    padding: 1rem;
}

.card-footer {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
}