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

body {
    background: linear-gradient(135deg, #0a0c10, #0f1117);
    font-family: 'Inter', sans-serif;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.container {
    max-width: 500px;
    width: 100%;
}

.card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border-radius: 30px;
    padding: 30px;
    border: 1px solid rgba(79, 172, 254, 0.2);
}

.logo {
    text-align: center;
    margin-bottom: 30px;
}

.logo h1 {
    font-size: 28px;
    font-weight: 800;
    background: linear-gradient(135deg, #00f2fe, #4facfe);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2 {
    color: white;
    font-size: 20px;
    margin-bottom: 8px;
}

.subtitle {
    color: #888;
    font-size: 14px;
    margin-bottom: 25px;
}

.order-summary {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 20px;
    padding: 15px;
    margin-bottom: 25px;
}

.order-item {
    display: flex;
    justify-content: space-between;
    color: white;
    margin-bottom: 10px;
}

.order-total {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 10px;
    margin-top: 10px;
    font-weight: 700;
    color: #00f2fe;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    color: #ccc;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(79, 172, 254, 0.3);
    border-radius: 15px;
    color: white;
    font-size: 14px;
    transition: all 0.2s;
}

.form-group textarea {
    resize: none;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #4facfe;
}

.form-note {
    display: block;
    font-size: 11px;
    color: #888;
    margin-top: 5px;
}

.btn-submit {
    width: 100%;
    background: linear-gradient(135deg, #00f2fe, #4facfe);
    border: none;
    padding: 14px;
    border-radius: 15px;
    color: white;
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
    transition: opacity 0.2s;
}

.btn-submit:hover {
    opacity: 0.85;
}

.back-link {
    text-align: center;
    margin-top: 20px;
}

.back-link a {
    color: #888;
    text-decoration: none;
    font-size: 14px;
}

.back-link a:hover {
    color: #4facfe;
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(5px);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
}

.loading-content {
    text-align: center;
    color: white;
}

.loading-content i {
    font-size: 50px;
    color: #4facfe;
    margin-bottom: 15px;
    animation: spin 1s linear infinite;
}

.loading-content p {
    font-size: 16px;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@media (max-width: 550px) {
    .card {
        padding: 20px;
    }
}