:root {
    --primary-color: #2E7D32;
    --text-color: #333;
    --bg-color: #F8F9FA;
    --card-bg: rgba(255, 255, 255, 0.95);
}

body {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background: #E8F5E9;
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    position: relative;
}

.lang-switch {
    position: absolute;
    top: 20px;
    right: 20px;
    background: #f1f8e9;
    padding: 5px 10px;
    border-radius: 20px;
    display: flex;
    gap: 10px;
    font-size: 14px;
    font-weight: bold;
    border: 1px solid #c8e6c9;
}

.lang-option {
    cursor: pointer;
    opacity: 0.5;
    transition: opacity 0.3s;
}

.lang-option.active {
    opacity: 1;
    color: var(--primary-color);
    text-decoration: underline;
}

h1 {
    color: var(--primary-color);
    border-bottom: 2px solid #C8E6C9;
    padding-bottom: 10px;
    margin-top: 0;
}

h2 {
    color: #2c3e50;
    font-size: 1.2rem;
    margin-top: 25px;
}

h3 {
    color: #2c3e50;
    font-size: 1.05rem;
    margin-top: 18px;
}

p, ul, ol {
    font-size: 14px;
    color: #555;
}

ul, ol {
    padding-left: 20px;
}

li {
    margin-bottom: 8px;
}

.contact-box {
    background: #f1f8e9;
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid var(--primary-color);
    margin-top: 20px;
}

.back-btn {
    display: inline-block;
    margin-bottom: 20px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

footer {
    margin-top: 40px;
    text-align: center;
    font-size: 12px;
    color: #888;
    border-top: 1px solid #eee;
    padding-top: 20px;
}

a { color: var(--primary-color); }

/* Language visibility rules */
body.lang-id [data-lang="en"] {
    display: none !important;
}

body.lang-en [data-lang="id"] {
    display: none !important;
}

/* Index page specific styles */
.app-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.app-list li {
    border: 1px solid #c8e6c9;
    border-radius: 0.5rem;
    margin-bottom: 0.75rem;
    transition: border-color 0.2s;
    background: #fff;
}

.app-list li:hover {
    border-color: var(--primary-color);
}

.app-list a {
    display: block;
    padding: 1rem 1.25rem;
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
}

.app-list a:hover {
    color: var(--primary-color);
}

.app-list a span {
    display: block;
    font-size: 0.85rem;
    font-weight: 400;
    color: #888;
    margin-top: 0.25rem;
}

.lead {
    color: #888;
    margin-bottom: 2rem;
}