/* Base styles */
body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #f5f7fa;
    color: #333;
}

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

.navbar {
    background: #212121;
    color: #fff;
    padding: 10px 0;
}

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

.navbar .logo {
    font-size: 20px;
    color: #fff;
    text-decoration: none;
    font-weight: bold;
}

.navbar .nav-links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
}

.navbar .nav-links li {
    margin-left: 15px;
}

.navbar .nav-links a {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
}

.hero {
    text-align: center;
    padding: 60px 20px;
    background: linear-gradient(135deg, #3f51b5, #5c6bc0);
    color: #fff;
    border-radius: 12px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    margin-bottom: 30px;
}

.hero h1 {
    margin-top: 0;
    font-size: 32px;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    background: #ff7043;
    color: #fff;
    text-decoration: none;
    border-radius: 6px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.1s, box-shadow 0.1s;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 8px rgba(0,0,0,0.15);
}

.section {
    margin-bottom: 30px;
}

.section h2 {
    margin-top: 0;
    font-size: 24px;
}

.form {
    background: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.form .field {
    margin-bottom: 15px;
}

.form .field label {
    display: block;
    margin-bottom: 5px;
    font-size: 14px;
}

.form .field input,
.form .field select,
.form .field textarea {
    width: 100%;
    padding: 8px;
    font-size: 14px;
    border: 1px solid #ccc;
    border-radius: 4px;
}

.flash {
    padding: 10px 15px;
    margin-bottom: 15px;
    border-radius: 6px;
    font-size: 14px;
}

.flash-success {
    background: #dff0d8;
    color: #3c763d;
}

.flash-error {
    background: #f2dede;
    color: #a94442;
}

.plan-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.06);
    padding: 20px;
    text-align: center;
    margin-bottom: 20px;
    transform: perspective(800px) translateZ(0);
    transition: transform 0.3s;
}

.plan-card:hover {
    transform: perspective(800px) translateZ(30px) rotateX(5deg);
}

.plan-price {
    font-size: 28px;
    color: #3f51b5;
    margin: 10px 0;
}

.plan-duration {
    font-size: 14px;
    color: #757575;
}

.plan-feature-list {
    list-style: none;
    padding: 0;
    margin: 0 0 15px 0;
}

.plan-feature-list li {
    margin-bottom: 8px;
    font-size: 14px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.footer {
    background: #212121;
    color: #aaa;
    padding: 20px 0;
    text-align: center;
    margin-top: 40px;
}

@media (max-width: 600px) {
    .navbar .nav-links {
        flex-direction: column;
        align-items: flex-start;
    }
    .navbar .nav-links li {
        margin-left: 0;
        margin-top: 5px;
    }
}