body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    background: #f4f6f8;
    color: #222;
}

.main-header {
    padding: 32px;
    text-align: center;
    background: #17263c;
    color: white;
}

.header-title {
    font-size: 36px;
    font-weight: bold;
    letter-spacing: 2px;
}

.header-subtitle {
    margin-top: 8px;
    font-size: 18px;
}

.navbar {
    padding: 12px 24px;
    background: white;
    border-bottom: 1px solid #ddd;
}

.navbar a {
    margin-right: 20px;
    text-decoration: none;
}

.user-info {
    margin-right: 20px;
}

.page-content {
    max-width: 1100px;
    margin: auto;
    padding: 40px 24px;
}

.hero {
    text-align: center;
    padding: 80px 20px;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 20px;
    max-width: 700px;
    margin: 0 auto 35px auto;
    line-height: 1.6;
}

.primary-button {
    display: inline-block;
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    text-decoration: none;
    cursor: pointer;
    font-size: 16px;
}

.login-card {
    max-width: 420px;
    margin: 40px auto;
    padding: 30px;
    background: white;
    border-radius: 8px;
}

.login-card label {
    display: block;
    margin-top: 15px;
}

.login-card input {
    width: 100%;
    padding: 10px;
    margin-top: 6px;
    box-sizing: border-box;
}

.login-card button {
    margin-top: 25px;
}

.flash-message {
    padding: 12px;
    margin-bottom: 20px;
    background: white;
    border: 1px solid #ddd;
}

.welcome-box {
    margin-top: 30px;
    font-size: 20px;
}