/* ==========================================
   ERROR HANDLING & LOADING STATES CSS
   Mahakarya Integrasi Teknologi
   ========================================== */

/* ==========================================
   LOADING STATES
   ========================================== */

/* Button Loading State */
.btn.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.8;
    cursor: not-allowed;
}

/* Spinner Animation */
.spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin-right: 8px;
    vertical-align: middle;
}

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

/* Loading Text Animation */
.loading-text {
    display: inline-block;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Disabled Form Fields */
.form-group input.disabled,
.form-group textarea.disabled,
.form-group select.disabled {
    background-color: #f5f5f5;
    cursor: not-allowed;
    opacity: 0.6;
    pointer-events: none;
}

/* ==========================================
   ERROR MESSAGES
   ========================================== */

/* Base Form Message Styles */
.form-message {
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    animation: slideDown 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Error Message */
.form-message.error {
    background: linear-gradient(135deg, #fff5f5 0%, #ffe5e5 100%);
    border-left: 4px solid #dc3545;
    box-shadow: 0 4px 12px rgba(220, 53, 69, 0.15);
}

/* Warning Message */
.form-message.warning {
    background: linear-gradient(135deg, #fffbf0 0%, #fff4d5 100%);
    border-left: 4px solid #ffc107;
    box-shadow: 0 4px 12px rgba(255, 193, 7, 0.15);
}

/* Message Header */
.form-message .message-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
}

.form-message.error .message-header i {
    color: #dc3545;
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.form-message.warning .message-header i {
    color: #ffc107;
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 2px;
}

/* Message Content */
.form-message .message-content {
    flex: 1;
}

.form-message .message-content strong {
    display: block;
    color: #721c24;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.form-message.warning .message-content strong {
    color: #856404;
}

.form-message .message-content p {
    margin: 0;
    color: #721c24;
    line-height: 1.6;
}

.form-message.warning .message-content p {
    color: #856404;
}

/* Retry Button */
.retry-btn {
    margin-top: 1rem;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.retry-btn:hover {
    transform: translateX(3px);
}

.retry-btn i {
    animation: rotate 1s ease-in-out;
}

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

/* Alternative Contacts */
.alternative-contacts {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(220, 53, 69, 0.2);
}

.form-message.warning .alternative-contacts {
    border-top-color: rgba(255, 193, 7, 0.2);
}

.alternative-contacts .alt-title {
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: #666;
    font-weight: 500;
}

.alt-buttons {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    border-radius: 5px;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
}

.btn-sm:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* Copy Button Success State */
.copy-phone-btn.copied {
    background-color: #28a745 !important;
    border-color: #28a745 !important;
}

/* ==========================================
   NETWORK STATUS INDICATOR
   ========================================== */

.network-notification {
    position: fixed;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: white;
    padding: 1rem 2rem;
    border-radius: 50px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    z-index: 10000;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: top 0.3s ease;
    font-weight: 500;
}

.network-notification.show {
    top: 20px;
}

.network-notification.offline {
    background: linear-gradient(135deg, #ff6b6b, #ee5a6f);
    color: white;
}

.network-notification.online {
    background: linear-gradient(135deg, #51cf66, #37b24d);
    color: white;
}

.network-notification i {
    font-size: 1.3rem;
}

.network-notification.offline i {
    animation: pulse 2s ease-in-out infinite;
}

.network-notification.online i {
    animation: scaleIn 0.5s ease;
}

@keyframes scaleIn {
    from {
        transform: scale(0);
    }
    to {
        transform: scale(1);
    }
}

/* ==========================================
   SUCCESS MESSAGE
   ========================================== */

.form-message.success {
    background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
    border-left: 4px solid #28a745;
    color: #155724;
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.15);
}

.form-message.success i {
    color: #28a745;
}

/* ==========================================
   MOBILE RESPONSIVE
   ========================================== */

@media (max-width: 768px) {
    .form-message {
        padding: 1rem;
    }

    .form-message .message-header {
        gap: 0.75rem;
    }

    .form-message .message-header i {
        font-size: 1.25rem;
    }

    .form-message .message-content strong {
        font-size: 1rem;
    }

    .alt-buttons {
        flex-direction: column;
    }

    .btn-sm {
        width: 100%;
        justify-content: center;
    }

    .network-notification {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
        max-width: 90%;
    }
}

/* ==========================================
   DARK MODE SUPPORT (Optional)
   ========================================== */

@media (prefers-color-scheme: dark) {
    .form-message.error {
        background: linear-gradient(135deg, #2d1b1b 0%, #3d1f1f 100%);
        border-left-color: #ff6b6b;
    }

    .form-message.error .message-content strong,
    .form-message.error .message-content p {
        color: #ffa8a8;
    }

    .form-message.warning {
        background: linear-gradient(135deg, #2d2a1b 0%, #3d351f 100%);
        border-left-color: #ffd43b;
    }

    .form-message.warning .message-content strong,
    .form-message.warning .message-content p {
        color: #ffe066;
    }

    .network-notification {
        background: #2d2d2d;
        color: white;
    }
}

/* ==========================================
   ACCESSIBILITY
   ========================================== */

/* Focus States */
.retry-btn:focus,
.copy-phone-btn:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Screen Reader Only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    .form-message.error {
        border-width: 3px;
    }

    .form-message .message-content strong {
        text-decoration: underline;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .spinner,
    .loading-text,
    .retry-btn i,
    .network-notification i {
        animation: none;
    }

    .form-message {
        animation: none;
    }

    * {
        transition-duration: 0.01ms !important;
    }
}

/* ==========================================
   PRINT STYLES
   ========================================== */

@media print {
    .network-notification,
    .spinner,
    .retry-btn {
        display: none;
    }

    .form-message {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}