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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: white;
    color: #e0e0e0;
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

/* Login Card */
.login-card {
    max-width: 400px;
    margin: 100px auto;
    background: #1a1a1a;
    border: 1px solid #333;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.login-card h1 {
    text-align: center;
    margin-bottom: 30px;
    color: #fff;
    font-size: 28px;
}

/* Dashboard Header */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding: 20px;
    background: #1a1a1a;
    border: 1px solid #333;
    border-radius: 12px;
}

.dashboard-header h1 {
    color: #fff;
    font-size: 32px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-info span {
    color: #b0b0b0;
}

/* Dashboard Card */
.dashboard-card {
    background: #1a1a1a;
    border: 1px solid #333;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

.dashboard-card h2 {
    color: #fff;
    margin-bottom: 30px;
    font-size: 24px;
}

/* Forms */
.login-form,
.payment-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    color: #e0e0e0;
    font-weight: 500;
    font-size: 14px;
}

.form-group input[type="email"],
.form-group input[type="password"],
.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="file"] {
    padding: 12px 16px;
    background: #0a0a0a;
    border: 1px solid #333;
    border-radius: 8px;
    color: #e0e0e0;
    font-size: 16px;
    transition: all 0.3s ease;
}

.form-group input[type="email"]:focus,
.form-group input[type="password"]:focus,
.form-group input[type="text"]:focus,
.form-group input[type="number"]:focus {
    outline: none;
    border-color: #555;
    background: #0f0f0f;
}

.form-group input[type="file"] {
    padding: 10px;
    cursor: pointer;
}

.form-group input[type="file"]::file-selector-button {
    padding: 8px 16px;
    background: #333;
    border: 1px solid #555;
    border-radius: 6px;
    color: #e0e0e0;
    cursor: pointer;
    margin-right: 10px;
    transition: all 0.3s ease;
}

.form-group input[type="file"]::file-selector-button:hover {
    background: #444;
    border-color: #666;
}

.form-hint {
    color: #888;
    font-size: 12px;
    margin-top: 4px;
}

/* Buttons */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: #000;
    color: #fff;
    border: 1px solid #333;
}

.btn-primary:hover {
    background: #1a1a1a;
    border-color: #555;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.btn-secondary {
    background: #333;
    color: #e0e0e0;
    border: 1px solid #555;
    padding: 8px 16px;
    font-size: 14px;
}

.btn-secondary:hover {
    background: #444;
    border-color: #666;
}

/* Messages/Alerts */
.messages {
    margin-bottom: 20px;
}

.alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 10px;
    font-size: 14px;
}

.alert-success {
    background: #1a3a1a;
    border: 1px solid #2a5a2a;
    color: #90ee90;
}

.alert-error {
    background: #3a1a1a;
    border: 1px solid #5a2a2a;
    color: #ff6b6b;
}

.alert-info {
    background: #1a1a3a;
    border: 1px solid #2a2a5a;
    color: #6b9fff;
}

/* Responsive */
@media (max-width: 768px) {
    .dashboard-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .login-card,
    .dashboard-card {
        padding: 30px 20px;
    }
}