*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100vh;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    color: #f0f0f0;
    background: #0a0a0a url("/images/background.png") center center / cover no-repeat fixed;
}

main {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.register-panel {
    width: 100%;
    max-width: 420px;
    padding: 2rem 2rem 1.5rem;
    background: rgba(0, 0, 0, 0.65);
    border: 1px solid rgba(0, 234, 255, 0.25);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
}

.register-title {
    margin: 0 0 0.25rem;
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    background: linear-gradient(90deg, #ff6b35, #47ff00);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.register-subtitle {
    margin: 0 0 1.5rem;
    text-align: center;
    font-size: 0.9rem;
    color: #b0b0b0;
}

.register-form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.form-group label {
    font-size: 0.85rem;
    color: #ccc;
}

.form-control {
    padding: 0.6rem 0.75rem;
    font-size: 1rem;
    color: #f0f0f0;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 6px;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
    border-color: #00eaff;
    box-shadow: 0 0 8px rgba(0, 234, 255, 0.3);
}

.text-danger {
    color: #ff6b6b;
    font-size: 0.8rem;
}

.validation-summary {
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
}

.alert {
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
}

.alert-success {
    background: rgba(71, 255, 0, 0.12);
    border: 1px solid rgba(71, 255, 0, 0.4);
    color: #47ff00;
}

.alert-danger {
    background: rgba(255, 80, 80, 0.12);
    border: 1px solid rgba(255, 80, 80, 0.4);
    color: #ff6b6b;
}

.btn {
    display: inline-block;
    padding: 0.7rem 1.25rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: transform 0.15s, box-shadow 0.15s;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    color: #0a0a0a;
    background: #00eaff;
    box-shadow: 0 0 12px rgba(0, 234, 255, 0.5);
}

.btn-primary:hover {
    box-shadow: 0 0 20px rgba(0, 234, 255, 0.7);
}

.btn-register {
    width: 100%;
    margin-top: 0.5rem;
}

.download-section {
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.btn-download {
    color: #0a0a0a;
    background: #47ff00;
    box-shadow: 0 0 12px rgba(71, 255, 0, 0.4);
}

.btn-download:hover {
    box-shadow: 0 0 20px rgba(71, 255, 0, 0.6);
}

@media (max-width: 480px) {
    .register-panel {
        max-width: 95%;
        padding: 1.5rem 1.25rem;
    }
}