:root {
    --bg-color: #0d1117;
    --card-bg: #161b22;
    --card-border: #30363d;
    --accent-color: #238636;
    --text-main: #c9d1d9;
    --text-heading: #ffffff;
    --text-muted: #8b949e;
}

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

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

.container {
    width: 90%;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navbar */
.navbar {
    background-color: rgba(13, 17, 23, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--card-border);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 15px 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-heading);
    text-decoration: none;
}

nav a {
    color: var(--text-muted);
    text-decoration: none;
    margin-left: 20px;
    transition: color 0.2s;
}

nav a:hover {
    color: var(--text-heading);
}

/* Hero */
.hero {
    padding: 100px 0 80px;
    text-align: center;
}

.hero h1 {
    font-size: 2.8rem;
    color: var(--text-heading);
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 30px;
}

.btn-primary {
    display: inline-block;
    background-color: var(--accent-color);
    color: #fff;
    padding: 12px 28px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: opacity 0.2s;
}

.btn-primary:hover {
    opacity: 0.9;
}

/* Sections */
.section {
    padding: 70px 0;
}

.dark-bg {
    background-color: var(--card-bg);
    border-top: 1px solid var(--card-border);
    border-bottom: 1px solid var(--card-border);
}

.section-title {
    font-size: 2rem;
    color: var(--text-heading);
    text-align: center;
    margin-bottom: 40px;
}

.section-desc {
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.1rem;
}

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

/* App Grid */
.app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.app-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    padding: 30px;
    position: relative;
    transition: transform 0.2s;
}

.app-card:hover {
    transform: translateY(-4px);
}

.app-icon {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.app-card h3 {
    color: var(--text-heading);
    margin-bottom: 10px;
}

.app-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.badge {
    display: inline-block;
    background-color: #21262d;
    border: 1px solid var(--card-border);
    color: var(--text-muted);
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.8rem;
}

.contact-email {
    display: inline-block;
    margin-top: 15px;
    font-size: 1.3rem;
    color: #58a6ff;
    text-decoration: none;
}

/* Footer */
footer {
    padding: 40px 0;
    border-top: 1px solid var(--card-border);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

footer a {
    color: var(--text-muted);
    text-decoration: none;
}

footer a:hover {
    color: var(--text-heading);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    overflow-y: auto;
}

.modal-content {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    margin: 5% auto;
    padding: 35px;
    width: 90%;
    max-width: 700px;
    border-radius: 8px;
    position: relative;
}

.modal-content h2 {
    color: var(--text-heading);
    margin-bottom: 5px;
}

.modal-content h3 {
    color: var(--text-heading);
    margin: 20px 0 10px;
}

.modal-content p, .modal-content ul {
    margin-bottom: 15px;
    font-size: 0.95rem;
}

.modal-content ul {
    padding-left: 20px;
}

.effective-date {
    color: var(--text-muted);
    font-size: 0.85rem !important;
    margin-bottom: 20px !important;
}

.close-btn {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 1.8rem;
    color: var(--text-muted);
    cursor: pointer;
}

.close-btn:hover {
    color: var(--text-heading);
}