/* ================================
   STYLES COMMUNS - VPN VOLGARIII
   ================================ */

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Boutons */
.btn {
    background: linear-gradient(45deg, #ff6b6b, #ff8e53);
    border: none;
    color: white;
    padding: 18px 40px;
    font-size: 1.2em;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: bold;
    box-shadow: 0 15px 35px rgba(255, 107, 107, 0.4);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 20px 40px rgba(255, 107, 107, 0.5);
}

/* Loading Spinner */
.loading {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 9999;
    justify-content: center;
    align-items: center;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Error Message Toast */
.error-message {
    position: fixed;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, #ff6b6b, #ee5a52);
    color: white;
    padding: 20px 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(255, 107, 107, 0.4);
    z-index: 10000;
    max-width: 400px;
    animation: slideIn 0.3s ease-out, slideOut 0.3s ease-in 4.7s;
    display: none;
    border-left: 5px solid #ff4757;
}

.error-message.show {
    display: block;
}

.error-message-header {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: bold;
    font-size: 1.1em;
    margin-bottom: 10px;
}

.error-message-icon {
    font-size: 1.5em;
}

.error-message-text {
    line-height: 1.6;
}

.error-message-close {
    position: absolute;
    top: 10px;
    right: 15px;
    background: none;
    border: none;
    color: white;
    font-size: 1.5em;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.error-message-close:hover {
    opacity: 1;
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(400px);
        opacity: 0;
    }
}

/* Footer */
footer {
    text-align: center;
    padding: 40px 0;
    opacity: 0.8;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    margin-top: 60px;
}

footer a {
    color: white;
    text-decoration: none;
    margin: 0 15px;
    opacity: 0.8;
    transition: opacity 0.3s;
}

footer a:hover {
    opacity: 1;
}

/* Responsive */
@media (max-width: 768px) {
    .error-message {
        top: 10px;
        right: 10px;
        left: 10px;
        max-width: none;
    }
}