/* Iran360 Virtual Tour Viewer - UI Components */

/* Loading Indicator */
.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(44, 62, 80, 0.9);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(236, 240, 241, 0.3);
    border-top: 3px solid #ecf0f1;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    filter: drop-shadow(0 0 8px rgba(236, 240, 241, 0.3));
}

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

/* Scene Title */
.scene-title {
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(44, 62, 80, 0.92);
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 500;
    text-align: center;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
    z-index: 100;
    pointer-events: none;
    color: #ecf0f1;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    letter-spacing: 0.5px;
}

.scene-title.visible {
    opacity: 1;
}

/* Navigation Controls */
.nav-controls {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 15px;
    z-index: 100;
}

.nav-button {
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    color: #2c3e50;
    font-size: 18px;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.nav-button:hover {
    background: rgba(255, 255, 255, 1);
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    border-color: rgba(0, 122, 204, 0.3);
}

.nav-button:active {
    transform: scale(0.98);
    transition: transform 0.1s ease;
}

.nav-button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
    background: rgba(255, 255, 255, 0.6);
    color: #95a5a6;
}

/* Utility Controls */
.utility-controls {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 100;
}

.utility-button {
    background: rgba(44, 62, 80, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    color: #ecf0f1;
    font-size: 16px;
    font-weight: 500;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.utility-button:hover {
    background: rgba(52, 73, 94, 0.95);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-1px);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.25);
}

.utility-button:active {
    transform: translateY(0);
    transition: transform 0.1s ease;
}

/* Logo Watermark */
.logo-watermark {
    position: absolute;
    top: 20px;
    right: 20px;
    max-width: 120px;
    max-height: 60px;
    opacity: 0.85;
    z-index: 50;
    pointer-events: none;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
    transition: opacity 0.3s ease;
}

/* Adjust logo position when utility controls are present */
.utility-controls ~ .logo-watermark {
    top: 80px;
}

/* Error Message */
.error-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(231, 76, 60, 0.95);
    color: #ffffff;
    padding: 24px;
    border-radius: 12px;
    text-align: left;
    max-width: 500px;
    max-height: 80vh;
    overflow-y: auto;
    z-index: 1000;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    line-height: 1.5;
}

.error-message .error-main {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 12px;
}

.error-message .error-recommendations {
    margin: 16px 0;
    padding: 12px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    border-left: 3px solid rgba(255, 255, 255, 0.3);
}

.error-message .error-recommendations strong {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
}

.error-message .error-recommendations ul {
    margin: 0;
    padding-left: 20px;
}

.error-message .error-recommendations li {
    margin: 4px 0;
}

.error-message .error-details {
    margin: 16px 0;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    overflow: hidden;
}

.error-message .error-details summary {
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.1);
    cursor: pointer;
    font-weight: 500;
    user-select: none;
}

.error-message .error-details summary:hover {
    background: rgba(255, 255, 255, 0.15);
}

.error-message .error-technical {
    padding: 12px;
    font-family: 'Courier New', monospace;
    font-size: 12px;
    background: rgba(0, 0, 0, 0.2);
    word-break: break-word;
}

.error-message .error-additional {
    margin: 12px 0;
    padding: 8px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    font-size: 14px;
}

.error-message button {
    margin-top: 16px;
    background: #ffffff;
    color: #e74c3c;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.error-message button:hover {
    background: #f8f9fa;
    transform: translateY(-1px);
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.15);
}

/* Notification System */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 12px 20px;
    border-radius: 8px;
    color: #ffffff;
    font-weight: 500;
    max-width: 300px;
    z-index: 1500;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.notification-visible {
    opacity: 1;
    transform: translateX(0);
}

.notification-info {
    background: rgba(52, 152, 219, 0.9);
    border-left: 4px solid #3498db;
}

.notification-warning {
    background: rgba(243, 156, 18, 0.9);
    border-left: 4px solid #f39c12;
}

.notification-error {
    background: rgba(231, 76, 60, 0.9);
    border-left: 4px solid #e74c3c;
}

/* Mobile responsive adjustments for error messages */
@media screen and (max-width: 767px) {
    .error-message {
        max-width: 90vw;
        padding: 20px;
        font-size: 14px;
    }
    
    .error-message .error-main {
        font-size: 15px;
    }
    
    .error-message .error-technical {
        font-size: 11px;
    }
    
    .notification {
        top: 15px;
        right: 15px;
        left: 15px;
        max-width: none;
        font-size: 14px;
    }
}

/* Responsive adjustments */
@media screen and (max-width: 767px) {
    .scene-title {
        font-size: 16px;
        padding: 8px 16px;
        top: 15px;
    }
    
    .nav-controls {
        bottom: 15px;
        gap: 10px;
    }
    
    .nav-button {
        width: 45px;
        height: 45px;
        font-size: 16px;
    }
    
    .utility-controls {
        top: 15px;
        right: 15px;
        gap: 8px;
    }
    
    .utility-button {
        width: 35px;
        height: 35px;
        font-size: 14px;
    }
    
    .logo-watermark {
        max-width: 80px;
        max-height: 40px;
        top: 15px;
        right: 15px;
    }
}

@media screen and (min-width: 768px) and (max-width: 1023px) {
    .nav-button {
        width: 55px;
        height: 55px;
        font-size: 20px;
    }
    
    .utility-button {
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
}

/* Info Modal */
#info-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
}

.info-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(44, 62, 80, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease-out;
}

.info-modal-content {
    background: #ffffff;
    color: #2c3e50;
    border-radius: 12px;
    max-width: 500px;
    max-height: 80vh;
    width: 90%;
    position: relative;
    overflow: hidden;
    animation: slideIn 0.3s ease-out;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.info-modal-close {
    position: absolute;
    top: 12px;
    right: 16px;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: #7f8c8d;
    z-index: 1;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.info-modal-close:hover {
    color: #2c3e50;
    background: rgba(0, 0, 0, 0.05);
}

.info-modal-body {
    padding: 40px 24px 24px;
    overflow-y: auto;
    max-height: calc(80vh - 60px);
    line-height: 1.6;
}

.info-modal-body h3 {
    margin: 0 0 16px 0;
    color: #2c3e50;
    font-size: 20px;
    font-weight: 600;
}

.info-modal-body p {
    margin: 0;
    color: #34495e;
    font-size: 16px;
}

/* Scene Transition Effects */
.scene-transition {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    z-index: 50;
    pointer-events: none;
}

.scene-transition.fade-in {
    opacity: 1;
    animation: fadeOut 1s ease-out forwards;
}

.scene-transition.fade-out {
    opacity: 0;
    animation: fadeIn 1s ease-out forwards;
}

/* Loading Progress Bar */
.loading-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: rgba(236, 240, 241, 0.2);
    overflow: hidden;
    border-radius: 2px;
}

.loading-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #3498db, #2980b9);
    width: 0%;
    transition: width 0.3s ease;
    border-radius: 2px;
    box-shadow: 0 0 12px rgba(52, 152, 219, 0.4);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Navigation button hover effects */
.nav-button {
    position: relative;
    overflow: hidden;
}

.nav-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(0, 120, 204, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.3s ease, height 0.3s ease;
}

.nav-button:hover::before {
    width: 100%;
    height: 100%;
}

/* Viewport-specific styles */
.viewport-mobile .scene-title {
    font-size: 16px !important;
    padding: 8px 16px !important;
    top: 15px !important;
    max-width: calc(100vw - 30px);
}

.viewport-mobile .nav-controls {
    bottom: 15px !important;
    gap: 10px !important;
}

.viewport-mobile .nav-button {
    width: 45px !important;
    height: 45px !important;
    font-size: 16px !important;
    min-width: 45px !important;
    min-height: 45px !important;
}

.viewport-mobile .utility-controls {
    top: 15px !important;
    right: 15px !important;
    gap: 8px !important;
}

.viewport-mobile .utility-button {
    width: 35px !important;
    height: 35px !important;
    font-size: 14px !important;
    min-width: 35px !important;
    min-height: 35px !important;
}

.viewport-mobile .logo-watermark {
    max-width: 80px !important;
    max-height: 40px !important;
    top: 15px !important;
    right: 15px !important;
}

.viewport-tablet .nav-button {
    width: 55px !important;
    height: 55px !important;
    font-size: 20px !important;
    min-width: 55px !important;
    min-height: 55px !important;
}

.viewport-tablet .utility-button {
    width: 45px !important;
    height: 45px !important;
    font-size: 18px !important;
    min-width: 45px !important;
    min-height: 45px !important;
}

.viewport-desktop .nav-button {
    width: 50px !important;
    height: 50px !important;
    font-size: 18px !important;
    min-width: 50px !important;
    min-height: 50px !important;
}

.viewport-desktop .utility-button {
    width: 40px !important;
    height: 40px !important;
    font-size: 16px !important;
    min-width: 40px !important;
    min-height: 40px !important;
}

/* Enhanced touch interactions */
@media (hover: none) and (pointer: coarse) {
    .nav-button, .utility-button {
        -webkit-tap-highlight-color: rgba(0, 0, 0, 0.1);
        touch-action: manipulation;
    }
    
    .nav-button:active, .utility-button:active {
        transform: scale(0.95);
        transition: transform 0.1s ease;
    }
}

/* Improved accessibility and focus states */
.nav-button:focus-visible, .utility-button:focus-visible {
    outline: 2px solid #007acc;
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(0, 122, 204, 0.2);
}

/* Better contrast for scene titles */
.scene-title {
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

/* Loading spinner improvements */
.loading-spinner {
    filter: drop-shadow(0 0 10px rgba(255, 255, 255, 0.3));
}

/* Responsive modal adjustments */
@media screen and (max-width: 767px) {
    .info-modal-content {
        width: 95%;
        max-width: none;
        margin: 10px;
        max-height: 85vh;
    }
    
    .info-modal-body {
        padding: 30px 15px 15px;
        font-size: 14px;
    }
    
    .info-modal-close {
        top: 8px;
        right: 12px;
        font-size: 20px;
    }
}

@media screen and (min-width: 768px) and (max-width: 1023px) {
    .info-modal-content {
        max-width: 600px;
        width: 85%;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .nav-button, .utility-button {
        border: 2px solid currentColor;
    }
    
    .scene-title {
        background: rgba(0, 0, 0, 0.9);
        border: 1px solid rgba(255, 255, 255, 0.5);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .scene-title {
        transition: opacity 0.1s ease-in-out !important;
    }
    
    .nav-button, .utility-button {
        transition: none !important;
    }
    
    .loading-progress-bar {
        transition: none !important;
    }
}