/* General Layout */
body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

main.container {
    padding-top: 80px;
    padding-bottom: 40px;
}

.content {
    padding: 20px 0;
}

/* Login Card - Glassmorphism */
.login-card {
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    animation: fadeInUp 0.6s ease-out;
}

.login-card .card-body {
    background: transparent;
    border-radius: 16px;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Card Enhancements - Glassmorphism */
.card {
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.card-body {
    padding: 1rem;
}

.card-header {
    border-radius: 16px 16px 0 0 !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    padding: 0.75rem 1.25rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.card-header h5 {
    font-size: 1.1rem;
}

.card-header i {
    margin-right: 0.5rem;
}

.card-header .btn-light {
    background: rgba(255, 255, 255, 0.9);
    border: none;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    font-size: 0.875rem;
}

.card-header .btn-light:hover {
    background: rgba(255, 255, 255, 1);
    transform: translateY(-1px);
}

/* Image Slot Cards - Glassmorphism Design */
.image-slot {
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 16px;
    margin: 10px 0;
    padding: 0;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    overflow: hidden;
}

.image-slot:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.image-slot.active {
    border: 2px solid rgba(16, 185, 129, 0.5);
    background: rgba(16, 185, 129, 0.1);
    box-shadow: 0 8px 32px rgba(16, 185, 129, 0.2);
}

.image-slot-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 10px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.image-slot.active .image-slot-header {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.image-slot-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
    color: white;
}

.image-slot-header .badge {
    font-size: 0.75rem;
    padding: 0.35rem 0.75rem;
    font-weight: 600;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.badge.bg-success {
    background: rgba(25, 135, 84, 0.3) !important;
    border-color: rgba(255, 255, 255, 0.4);
}

.badge.bg-secondary {
    background: rgba(108, 117, 125, 0.3) !important;
    border-color: rgba(255, 255, 255, 0.4);
}

.image-slot-details {
    padding: 12px;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
}

@media (max-width: 992px) {
    .image-slot-details {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .image-slot-details {
        grid-template-columns: repeat(2, 1fr);
    }
}

.detail-row {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    padding: 10px 12px;
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(10px) saturate(150%);
    -webkit-backdrop-filter: blur(10px) saturate(150%);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 16px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
}

.detail-label {
    font-weight: 600;
    color: #6b7280;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-align: left;
}

.detail-value {
    font-weight: 500;
    color: #1f2937;
    font-size: 1rem;
    line-height: 1.5rem;
    min-height: 1.5rem;
    display: flex;
    align-items: center;
}

.detail-value i {
    font-size: 1.5rem;
}

.hash-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.hash-value {
    font-family: 'Monaco', 'Menlo', 'Courier New', monospace;
    font-size: 0.85rem;
    color: #6366f1;
    cursor: help;
}

.hash-copy-icon {
    color: #6b7280;
    cursor: pointer;
    font-size: 1.1rem;
    transition: all 0.2s ease;
}

.hash-copy-icon:hover {
    color: #667eea;
    transform: scale(1.2);
}

.hash-copy-icon:active {
    transform: scale(0.95);
}

.hash-copy-icon.copied {
    color: #10b981;
}

/* Tables - Modern Look */
table {
    border-collapse: collapse;
    border: none;
    width: 100%;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

table th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 0.875rem;
    color: #fff;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

table td {
    padding: 12px 16px;
    text-align: left;
    font-size: 0.9rem;
    border-bottom: 1px solid #e5e7eb;
    background: white;
}

table tr:last-child td {
    border-bottom: none;
}

table tr:hover td {
    background: #f9fafb;
}

/* Upload Drop Zone - Glassmorphism */
.upload-drop-zone {
    border: 2px dashed rgba(102, 126, 234, 0.3);
    border-radius: 16px;
    padding: 1.5rem 1.5rem;
    text-align: center;
    background: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px) saturate(150%);
    -webkit-backdrop-filter: blur(10px) saturate(150%);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    cursor: pointer;
}

.upload-drop-zone:hover {
    border-color: rgba(102, 126, 234, 0.6);
    background: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.upload-drop-zone.drag-over {
    border-color: rgba(102, 126, 234, 0.8);
    background: rgba(102, 126, 234, 0.15);
    backdrop-filter: blur(15px) saturate(180%);
    -webkit-backdrop-filter: blur(15px) saturate(180%);
    border-style: solid;
    box-shadow: 0 8px 32px rgba(102, 126, 234, 0.2);
}

.upload-drop-content {
    pointer-events: none;
}

.upload-drop-content h5 {
    font-size: 1rem;
    margin-top: 0.75rem !important;
    margin-bottom: 0.5rem !important;
}

.upload-drop-content p {
    font-size: 0.875rem;
    margin-bottom: 1rem !important;
}

.upload-icon {
    font-size: 2.5rem;
    color: #667eea;
    opacity: 0.7;
}

.upload-drop-zone:hover .upload-icon {
    opacity: 1;
    transform: scale(1.05);
    transition: all 0.3s ease;
}

.upload-status-info {
    margin-top: 1rem;
    padding: 0;
    background: transparent;
    border: none;
}

.upload-info-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-top: 0.5rem;
}

@media (max-width: 768px) {
    .upload-info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

.upload-hash-copy-icon {
    color: #6b7280;
    cursor: pointer;
    font-size: 1.1rem;
    transition: all 0.2s ease;
}

.upload-hash-copy-icon:hover {
    color: #667eea;
    transform: scale(1.2);
}

.upload-hash-copy-icon:active {
    transform: scale(0.95);
}

.upload-hash-copy-icon.copied {
    color: #10b981;
}

/* Button Enhancements - Glassmorphism */
.btn {
    border-radius: 16px;
    font-weight: 500;
    padding: 0.4rem 1rem;
    transition: all 0.2s ease;
    margin: 0.15rem;
    font-size: 0.9rem;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn i {
    margin-right: 0.4rem;
}

.btn-lg {
    padding: 0.6rem 1.2rem;
    font-size: 1rem;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.btn-primary {
    background: rgba(13, 110, 253, 0.9);
    backdrop-filter: blur(10px) saturate(180%);
    -webkit-backdrop-filter: blur(10px) saturate(180%);
}

.btn-primary:hover {
    background: rgba(13, 110, 253, 1);
}

/* Disabled Button Styling */
.btn:disabled,
.btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    filter: grayscale(50%);
}

.btn:disabled:hover,
.btn.disabled:hover {
    transform: none;
    box-shadow: none;
}

/* Alert Enhancements - Glassmorphism */
.alert {
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(10px) saturate(150%);
    -webkit-backdrop-filter: blur(10px) saturate(150%);
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    padding: 1rem 1.25rem;
}

.alert-success {
    background: rgba(25, 135, 84, 0.15);
    border-color: rgba(25, 135, 84, 0.3);
    color: #0f5132;
}

.alert-warning {
    background: rgba(255, 193, 7, 0.15);
    border-color: rgba(255, 193, 7, 0.3);
    color: #664d03;
    font-size: 0.875rem;
    padding: 0.75rem 1rem;
}

.alert-danger {
    background: rgba(220, 53, 69, 0.15);
    border-color: rgba(220, 53, 69, 0.3);
    color: #842029;
}

.alert-danger .bi-exclamation-triangle-fill {
    color: #dc3545;
}

.upload-error-alert {
    font-size: 0.9rem;
    line-height: 1.5;
    max-width: 600px;
    margin: 0 auto;
    text-align: left;
    background: rgba(220, 53, 69, 0.15);
    border: 1px solid rgba(220, 53, 69, 0.3);
    border-radius: 16px;
    padding: 1rem 1.25rem;
    color: #842029;
    backdrop-filter: blur(10px) saturate(150%);
    -webkit-backdrop-filter: blur(10px) saturate(150%);
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

.upload-progress-container {
    max-width: 500px;
    margin: 0 auto 1.5rem auto;
    text-align: center;
}

.upload-progress-text {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.75rem;
    color: #667eea;
}

.upload-progress-text i {
    margin-right: 0.5rem;
}

.upload-progress-bar {
    height: 8px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.upload-progress-bar .progress-bar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    height: 100%;
}

.upload-warning-text {
    font-size: 0.85rem;
    color: #664d03;
    margin-top: 0.5rem;
}

.file-selected-status,
.file-ready-status,
.file-error-status {
    text-align: center;
    font-size: 1rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 12px;
    margin-bottom: 0.75rem;
}

.file-selected-status {
    color: #495057;
    background: rgba(108, 117, 125, 0.1);
    border: 1px solid rgba(108, 117, 125, 0.2);
}

.file-selected-status i {
    color: #6c757d;
    margin-right: 0.5rem;
}

.file-ready-status {
    color: #0f5132;
    background: rgba(25, 135, 84, 0.15);
    border: 1px solid rgba(25, 135, 84, 0.3);
}

.file-ready-status i {
    color: #198754;
    margin-right: 0.5rem;
}

.file-error-status {
    color: #842029;
    background: rgba(220, 53, 69, 0.15);
    border: 1px solid rgba(220, 53, 69, 0.3);
}

.file-error-status i {
    color: #dc3545;
    margin-right: 0.5rem;
}

.upload-error-tips {
    font-size: 0.85rem;
    margin-top: 0.75rem;
}

.upload-error-tips strong {
    display: block;
    margin-bottom: 0.5rem;
}

.upload-error-tips ul {
    margin: 0;
    padding-left: 1.25rem;
    list-style: none;
}

.upload-error-tips ul li {
    position: relative;
    margin-bottom: 0.35rem;
    padding-left: 0;
}

.upload-error-tips ul li:before {
    content: "•";
    position: absolute;
    left: -1.25rem;
    color: #dc3545;
    font-weight: bold;
}

#connection-error-tips ul li {
    padding-left: 1rem;
    text-indent: -1rem;
    margin-bottom: 0.5rem;
}

/* Navbar Enhancement */
.navbar {
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* Modern Spinner */
.modern-spinner {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
    height: 60px;
}

.spinner-circle {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
    animation: pulse-spinner 1.4s ease-in-out infinite;
}

.spinner-circle:nth-child(1) {
    animation-delay: 0s;
}

.spinner-circle:nth-child(2) {
    animation-delay: 0.2s;
}

.spinner-circle:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes pulse-spinner {
    0%, 80%, 100% {
        transform: scale(0.6);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Form Inputs - Glassmorphism */
.form-control {
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.2s ease;
}

.form-control:focus {
    background: rgba(255, 255, 255, 0.7);
    border-color: rgba(102, 126, 234, 0.5);
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.15);
}

.form-text {
    font-size: 0.75rem;
    color: #6c757d;
    margin-top: -0.25rem;
}

.form-label {
    margin-bottom: 0.25rem;
}