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

:root {
    --primary-color: #2563eb;
    --primary-light: #3b82f6;
    --secondary-color: #7c3aed;
    --background-color: #ffffff;
    --surface-color: #f8fafc;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --gradient: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
}

.dark-theme {
    --primary-color: #3b82f6;
    --primary-light: #60a5fa;
    --secondary-color: #8b5cf6;
    --background-color: #0f172a;
    --surface-color: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --border-color: #334155;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

body {
    font-family: 'Vazirmatn', sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    transition: all 0.3s ease;
    padding-top: 50px;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.persian,
.english {
    font-family: 'Vazirmatn', sans-serif;
}

/* Navbar */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    box-shadow: var(--shadow);
}

.dark-theme .navbar {
    background: rgba(30, 41, 59, 0.95);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--primary-color) !important;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.navbar-brand i {
    color: var(--primary-color) !important;
}

.navbar-icon {
    width: 32px;
    height: 32px;
    object-fit: contain;
    margin-left: 0.5rem;
}

.brand-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-controls {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.navbar-controls .btn {
    border-radius: 8px;
    padding: 6px 12px;
    font-size: 0.85rem;
    border: 1px solid var(--border-color);
    background: var(--surface-color);
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.navbar-controls .btn:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-1px);
}

/* Hero Section */
.main-content {
    flex: 1;
    padding: 2rem 0;
}

.hero-section {
    padding: 2rem 0;
}

.hero-text {
    text-align: center;
    margin-bottom: 3rem;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-icon {
    width: 48px;
    height: 48px;
    object-fit: contain;
    vertical-align: middle;
    margin-left: 0.5rem;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* Upload Card */
.upload-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    background: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    padding: 1.2rem 1.5rem;
}

.card-header h5 {
    margin: 0;
    color: var(--text-primary);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-body {
    padding: 2rem;
}

/* Drop Zone */
.drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 2.5rem 1rem;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    background: var(--surface-color);
    position: relative;
}

.drop-zone:hover,
.drop-zone.drag-over {
    border-color: var(--primary-color);
    background: rgba(37, 99, 235, 0.05);
}

.drop-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.drop-text {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.drop-zone small {
    color: var(--text-secondary) !important;
}

/* Image Preview */
.image-preview {
    margin: 1.5rem 0;
    text-align: center;
}

.preview-container {
    position: relative;
    display: inline-block;
}

.preview-img {
    max-width: 100%;
    max-height: 300px;
    border-radius: 10px;
    border: 2px solid var(--border-color);
}

.remove-image-btn {
    position: absolute;
    top: 10px;
    left: 10px;
    background: rgba(220, 53, 69, 0.9);
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    color: white;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    font-family: 'Vazirmatn';
}

.remove-image-btn:hover {
    background: rgba(220, 53, 69, 1);
    transform: scale(1.1);
}

/* Upload Progress */
.upload-progress {
    margin: 1.5rem 0;
}

.progress-bar {
    height: 8px;
    background: var(--border-color);
    border-radius: 10px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--gradient);
    border-radius: 10px;
    transition: width 0.3s ease;
    width: 0%;
}

.progress-text {
    text-align: center;
    margin-top: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Buttons */
.btn {
    border: none;
    border-radius: 10px;
    padding: 12px 24px;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
    font-family: 'Vazirmatn', sans-serif;
}

.btn-primary {
    background: var(--gradient);
    color: white;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
    background: var(--surface-color);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-color);
}

/* Results */
.results-section {
    margin-top: 3rem;
}

.results-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

.results-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    align-items: start;
}

.diagnosis-main {
    text-align: center;
    padding: 1rem;
}

.diagnosis-main h4 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.diagnosis-badge {
    display: inline-block;
    background: var(--gradient);
    color: white;
    padding: 1rem 2rem;
    border-radius: 12px;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    box-shadow: var(--shadow);
}

.confidence {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.confidence strong {
    color: var(--primary-color);
}

.predictions-list {
    padding: 1rem;
}

.predictions-list h5 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.prediction-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding: 0.5rem;
    border-radius: 8px;
    background: var(--background-color);
}

.prediction-label {
    flex: 1;
    font-weight: 500;
    color: var(--text-primary);
}

.prediction-bar {
    flex: 2;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    overflow: hidden;
}

.prediction-fill {
    height: 100%;
    background: var(--gradient);
    border-radius: 4px;
    transition: width 0.3s ease;
}

.prediction-percent {
    width: 50px;
    text-align: left;
    font-weight: 600;
    color: var(--primary-color);
}

/* Medical Warning */
.medical-warning {
    background: rgba(251, 191, 36, 0.1);
    border: 1px solid rgba(251, 191, 36, 0.3);
    border-radius: 12px;
    padding: 1.5rem;
    margin-top: 2rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.warning-icon {
    color: #f59e0b;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.warning-text {
    flex: 1;
}

.warning-text p {
    margin: 0;
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 0.9rem;
}

.warning-text strong {
    color: #f59e0b;
}

/* Footer */
.footer {
    background: var(--surface-color);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    margin-top: auto;
}

.footer-content {
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

.footer-text {
    color: var(--text-secondary);
    margin-bottom: 0;
}

.developer-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.developer-link:hover {
    text-decoration: underline;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    width: 100%;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    display: flex;
    align-items: center;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: var(--primary-color);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    backdrop-filter: blur(5px);
}

.modal-content {
    background: var(--surface-color);
    border-radius: 20px;
    padding: 2.5rem;
    max-width: 400px;
    width: 90%;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.9) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.modal-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 600;
}

.modal-text {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.modal-actions .btn {
    min-width: 120px;
}

/* Tooltip */
.tooltip-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.tooltip-content {
    background: var(--surface-color);
    border-radius: 15px;
    padding: 2rem;
    max-width: 350px;
    width: 90%;
    text-align: center;
    box-shadow: var(--shadow);
    border: 2px solid var(--primary-color);
    animation: tooltipFadeIn 0.3s ease-out;
}

@keyframes tooltipFadeIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.tooltip-content h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.tooltip-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.tooltip-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Tutorial Highlight */
.tutorial-highlight {
    position: relative;
    z-index: 10000;
    box-shadow: 0 0 0 4px var(--primary-color) !important;
    border-radius: 8px;
    transition: all 0.3s ease;
}

/* Helpers */
.results-separator {
    height: 40px;
    width: 100%;
}

/*  Model Loader */
#modelGlobalLoader {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.85);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999999 !important;
    color: #fff;
    font-family: inherit;
}

#modelGlobalLoader .loader-box {
    text-align: center;
}

.loader-spinner {
    width: 60px;
    height: 60px;
    border: 6px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 1.0s linear infinite;
    margin: 0 auto 15px;
}

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

/* Responsive */

/* 768px */
@media (max-width: 768px) {
    body {
        padding-top: 70px;
    }

    .hero-title {
        font-size: 1.8rem;
    }

    .hero-subtitle {
        font-size: 1rem;
        line-height: 1.4;
    }

    .hero-description {
        font-size: 0.9rem;
    }

    .hero-text {
        margin-bottom: 2rem;
    }

    .card-body {
        padding: 1.5rem;
    }

    .drop-zone {
        padding: 2rem 1rem;
    }

    .navbar-controls {
        flex-wrap: wrap;
        justify-content: center;
    }

    .navbar-icon {
        width: 28px;
        height: 28px;
    }

    .hero-icon {
        width: 36px;
        height: 36px;
    }

    .modal-actions {
        flex-direction: column;
    }

    .modal-actions .btn {
        width: 100%;
    }

    .results-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .footer-content {
        gap: 0.8rem;
    }

    .footer-links {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }

    .tooltip-actions {
        flex-direction: column;
    }

    .tooltip-actions .btn {
        width: 100%;
    }

    .medical-warning {
        padding: 1rem;
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
    }

    .warning-text p {
        font-size: 0.85rem;
    }
}

/* 480px */
@media (max-width: 480px) {
    .hero-title {
        font-size: 1.6rem;
    }

    .hero-subtitle {
        font-size: 0.95rem;
    }

    .hero-description {
        font-size: 0.85rem;
    }

    .container {
        padding-left: 15px;
        padding-right: 15px;
    }

    .navbar-brand {
        font-size: 1.2rem;
    }

    .navbar-icon {
        width: 24px;
        height: 24px;
    }

    .hero-icon {
        width: 32px;
        height: 32px;
    }

    .diagnosis-badge {
        padding: 0.8rem 1.5rem;
        font-size: 1.1rem;
    }

    .prediction-item {
        flex-direction: column;
        align-items: stretch;
        gap: 0.5rem;
    }

    .prediction-bar {
        flex: none;
        height: 6px;
    }

    .prediction-percent {
        width: auto;
        text-align: center;
    }

    .modal-content {
        padding: 2rem;
    }

    .tooltip-content {
        padding: 1.5rem;
    }

    .footer-links {
        flex-direction: row;
        justify-content: center;
    }

    .hero-subtitle .persian {
        font-size: 0.9rem;
    }

    .hero-description .persian {
        font-size: 0.85rem;
    }
}