/* Reset e Variáveis CSS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Cores Dark Mode */
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-muted: #666666;
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-gradient: linear-gradient(135deg, #6366f1, #8b5cf6);
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --border: #333333;
    --shadow: rgba(0, 0, 0, 0.5);
    --shadow-lg: rgba(0, 0, 0, 0.8);
    
    /* Transições */
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
    
    /* Bordas */
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Navbar */
.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: bold;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link:hover,
.nav-link.active {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

/* Main Content */
.main-content {
    min-height: calc(100vh - 80px);
}

.section {
    display: none;
    padding: 2rem 0;
}

.section.active {
    display: block;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Generator Card */
.generator-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: 3rem;
    box-shadow: 0 10px 30px var(--shadow);
    border: 1px solid var(--border);
    max-width: 800px;
    margin: 0 auto;
}

.generator-card h1 {
    text-align: center;
    margin-bottom: 0.5rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 2.5rem;
}

.generator-card p {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

/* Form Styles */
.image-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

label {
    color: var(--text-primary);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

textarea,
input,
select {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75rem;
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

textarea {
    resize: vertical;
    min-height: 150px;
    font-family: inherit;
}

textarea:focus,
input:focus,
select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* Buttons */
.btn-generate {
    background: var(--accent-gradient);
    border: none;
    border-radius: var(--radius-lg);
    padding: 1rem 2rem;
    color: white;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
}

.btn-generate:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

.btn-generate:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-action {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.5rem 1rem;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-action:hover {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
}

.btn-clear {
    background: var(--danger);
    border: none;
    border-radius: var(--radius);
    padding: 0.5rem 1rem;
    color: white;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-clear:hover {
    background: #dc2626;
}

.btn-danger {
    background: var(--danger) !important;
    border-color: var(--danger) !important;
}

/* Loading Area */
.loading-area {
    text-align: center;
    padding: 3rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    margin-top: 2rem;
}

.loading-spinner {
    font-size: 3rem;
    color: var(--accent-primary);
    margin-bottom: 1rem;
}

/* Result Area */
.result-area {
    margin-top: 2rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-lg);
    padding: 2rem;
}

.result-area h3 {
    color: var(--success);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.image-container {
    text-align: center;
}

.image-container img {
    max-width: 100%;
    border-radius: var(--radius-lg);
    box-shadow: 0 10px 30px var(--shadow);
    margin-bottom: 1rem;
}

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

/* Section Header */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.section-header h2 {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Gallery Controls */
.gallery-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

#searchGallery {
    min-width: 280px;
    flex: 1;
    max-width: 400px;
}

/* Gallery Grid - Design Moderno e Responsivo */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
    padding: 1rem 0;
}

/* Gallery Item - Card Moderno */
.gallery-item {
    position: relative;
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.gallery-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, 
        rgba(99, 102, 241, 0.1) 0%, 
        rgba(139, 92, 246, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 1;
}

.gallery-item:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(99, 102, 241, 0.15),
                0 8px 16px rgba(0, 0, 0, 0.1);
    border-color: var(--accent-primary);
}

.gallery-item:hover::before {
    opacity: 1;
}

/* Image Container */
.gallery-item-image {
    position: relative;
    overflow: hidden;
    height: 280px;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.gallery-item:hover img {
    transform: scale(1.05);
}

/* Overlay com botões */
.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, 
        rgba(0, 0, 0, 0) 0%,
        rgba(0, 0, 0, 0.3) 70%,
        rgba(0, 0, 0, 0.7) 100%);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: 2;
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay .btn-icon {
    background: rgba(255, 255, 255, 0.9);
    color: var(--text-primary);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.gallery-overlay .btn-icon:hover {
    background: var(--accent-primary);
    color: white;
    transform: scale(1.1);
}

/* Info Section */
.gallery-item-info {
    padding: 1.25rem;
    position: relative;
    z-index: 2;
}

.gallery-item-prompt {
    font-weight: 600;
    font-size: 0.95rem;
    line-height: 1.4;
    margin-bottom: 0.75rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    color: var(--text-primary);
}

.gallery-item-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
}

.gallery-item-meta span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.gallery-item-meta i {
    font-size: 0.75rem;
    opacity: 0.7;
}

/* Responsive Design */
@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        gap: 1rem;
    }
    
    .gallery-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    #searchGallery {
        min-width: auto;
        max-width: none;
    }
    
    .gallery-item-image {
        height: 240px;
    }
}

@media (max-width: 480px) {
    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .gallery-item-image {
        height: 200px;
    }
    
    .gallery-item-info {
        padding: 1rem;
    }
}

/* Loading State */
.gallery-item.loading {
    background: var(--bg-tertiary);
    animation: pulse 1.5s ease-in-out infinite;
}

.gallery-item.loading img {
    opacity: 0;
}

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

/* Empty State */
.gallery-empty {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.gallery-empty i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.gallery-empty h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.gallery-empty p {
    margin-bottom: 2rem;
}

/* Prompts List */
.prompts-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.prompt-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: var(--transition);
}

.prompt-item:hover {
    border-color: var(--accent-primary);
}

.prompt-text {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    line-height: 1.5;
}

.prompt-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.prompt-actions {
    display: flex;
    gap: 0.5rem;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 2rem;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    max-width: 90vw;
    max-height: 90vh;
    overflow: auto;
    position: relative;
    border: 1px solid var(--border);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 2rem;
    color: var(--text-secondary);
    cursor: pointer;
    z-index: 1001;
    background: var(--bg-primary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--text-primary);
    background: var(--danger);
}

.modal-body {
    display: flex;
    gap: 2rem;
    padding: 2rem;
}

.modal-body img {
    max-width: 60%;
    border-radius: var(--radius-lg);
}

.modal-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.modal-info h3 {
    color: var(--text-primary);
    font-size: 1.3rem;
    line-height: 1.4;
}

.modal-details {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    color: var(--text-secondary);
}

.modal-actions {
    display: flex;
    gap: 1rem;
    margin-top: auto;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

.text-success {
    color: var(--success);
}

.text-danger {
    color: var(--danger);
}

.text-warning {
    color: var(--warning);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-container {
        padding: 0 1rem;
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-menu {
        gap: 1rem;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    .generator-card {
        padding: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .section-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .gallery-controls {
        flex-direction: column;
    }
    
    #searchGallery {
        min-width: auto;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-body {
        flex-direction: column;
        padding: 1rem;
    }
    
    .modal-body img {
        max-width: 100%;
    }
    
    .image-actions,
    .modal-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .generator-card {
        padding: 1.5rem;
    }
    
    .generator-card h1 {
        font-size: 2rem;
    }
    
    .nav-brand {
        font-size: 1.2rem;
    }
    
    .modal {
        padding: 1rem;
    }
}

/* Animações */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.gallery-item,
.prompt-item {
    animation: fadeIn 0.5s ease;
}

/* Scrollbar personalizada */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}