/* Reset e configurações básicas */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --cor-primary: #8a2be2;
    --cor-secondary: #663399;
    --cor-tertiary: #4a1a5c;
    --cor-background: #0a0a0a;
    --cor-surface: #1a1a1a;
    --cor-surface-light: #2a2a2a;
    --cor-text: #ffffff;
    --cor-text-muted: #cccccc;
    --cor-accent: #ff6b35;
    --cor-laranja-link: #ff8c42;
    --cor-success: #4caf50;
    --cor-warning: #ff9800;
    --cor-error: #f44336;
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, var(--cor-background) 0%, var(--cor-tertiary) 100%);
    color: var(--cor-text);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

#app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* Header */
#main-header {
    padding: 2rem;
    text-align: center;
    background: rgba(138, 43, 226, 0.1);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(138, 43, 226, 0.2);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: var(--transition);
    position: relative;
}

#main-header.splash-mode {
    background: transparent;
    border-bottom: none;
}

.user-info {
    position: absolute;
    top: 1rem;
    right: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    z-index: 101;
}

#user-welcome {
    color: var(--cor-text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.85rem;
    min-width: auto;
    border-radius: 20px;
}

#logout-btn {
    background: rgba(244, 67, 54, 0.1);
    color: var(--cor-error);
    border: 1px solid rgba(244, 67, 54, 0.3);
    transition: var(--transition);
}

#logout-btn:hover {
    background: var(--cor-error);
    color: white;
    transform: translateY(-1px);
}

.header-content h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(45deg, var(--cor-primary), var(--cor-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-content p {
    font-size: 1rem;
    color: var(--cor-text-muted);
}

.header-content a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

.header-content a:hover {
    opacity: 0.8;
}

/* Steps */
.step {
    display: none;
    padding: 2rem;
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
    animation: fadeInUp 0.5s ease;
}

.step.active {
    display: block;
}

.step-text {
    font-size: 1.5rem;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--cor-text);
    font-weight: 500;
}

/* Welcome Step */
#show-story-list-btn {
    display: block;
    text-align: center;
    color: var(--cor-laranja-link);
    text-decoration: none;
    margin-bottom: 2rem;
    font-size: 1.1rem;
    transition: var(--transition);
}

#show-story-list-btn:hover {
    color: var(--cor-accent);
    text-decoration: underline;
}

.search-options {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.chat-input-wrapper {
    position: relative;
    max-width: 600px;
    margin: 0 auto 2rem;
}

#story-input {
    width: 100%;
    padding: 1rem 4rem 1rem 1.5rem;
    font-size: 1.1rem;
    background: var(--cor-surface);
    border: 2px solid var(--cor-surface-light);
    border-radius: var(--border-radius);
    color: var(--cor-text);
    outline: none;
    transition: var(--transition);
}

#story-input:focus {
    border-color: var(--cor-primary);
    box-shadow: 0 0 0 3px rgba(138, 43, 226, 0.1);
}

#send-button {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: var(--cor-primary);
    border: none;
    border-radius: 50%;
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

#send-button:hover {
    background: var(--cor-secondary);
    transform: translateY(-50%) scale(1.05);
}

#send-button svg {
    width: 1.5rem;
    height: 1.5rem;
    color: white;
}

/* Story Examples */
.story-examples {
    text-align: center;
    margin-bottom: 2rem;
}

.story-examples p {
    color: var(--cor-text-muted);
    margin-bottom: 1rem;
}

.example-tags {
    display: flex;
    gap: 0.8rem;
    justify-content: center;
    flex-wrap: wrap;
}

.example-tag {
    background: var(--cor-surface);
    color: var(--cor-text);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9rem;
    border: 1px solid var(--cor-surface-light);
    transition: var(--transition);
}

.example-tag:hover {
    background: var(--cor-primary);
    color: white;
    transform: translateY(-2px);
}

/* Genre Selection */
.genre-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.genre-btn {
    background: var(--cor-surface);
    border: 2px solid var(--cor-surface-light);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    color: var(--cor-text);
}

.genre-btn:hover {
    background: var(--cor-surface-light);
    border-color: var(--cor-primary);
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(138, 43, 226, 0.15);
}

.genre-btn.selected {
    background: var(--cor-primary);
    border-color: var(--cor-secondary);
    color: white;
}

.genre-icon {
    font-size: 3rem;
}

.genre-name {
    font-size: 1.3rem;
    font-weight: 600;
}

.genre-desc {
    font-size: 0.9rem;
    color: var(--cor-text-muted);
    opacity: 0.8;
}

.genre-btn.selected .genre-desc {
    color: rgba(255, 255, 255, 0.8);
}

/* Generate Story Section */
.generate-story-section {
    text-align: center;
    margin-top: 3rem;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(138, 43, 226, 0.1), rgba(138, 43, 226, 0.05));
    border-radius: var(--border-radius);
    border: 2px dashed var(--cor-primary);
}

.btn-large {
    font-size: 1.3rem;
    padding: 1.2rem 2.5rem;
    font-weight: 600;
    min-width: 250px;
    background: linear-gradient(45deg, var(--cor-primary), var(--cor-secondary));
    border: none;
    color: white;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(138, 43, 226, 0.3);
}

.btn-large:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(138, 43, 226, 0.4);
    background: linear-gradient(45deg, var(--cor-secondary), var(--cor-primary));
}

.btn-large:active {
    transform: translateY(-1px);
}

.btn-large:disabled {
    background: var(--cor-surface-light);
    color: var(--cor-text-muted);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.generate-help-text {
    margin-top: 1rem;
    color: var(--cor-text-muted);
    font-size: 0.95rem;
    font-style: italic;
}

/* Generate button loading state */
.btn-large.loading {
    position: relative;
    color: transparent;
}

.btn-large.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    text-align: center;
    min-width: 120px;
}

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

.btn-primary:hover {
    background: var(--cor-secondary);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(138, 43, 226, 0.3);
}

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

.btn-secondary:hover {
    background: var(--cor-surface-light);
    transform: translateY(-2px);
}

/* Options Container */
.options-container {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Customization Options */
.customization-options {
    background: var(--cor-surface);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin-top: 2rem;
    border: 1px solid var(--cor-surface-light);
}

.customization-options h3 {
    color: var(--cor-primary);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.option-group {
    margin-bottom: 1.5rem;
}

.option-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.option-group input[type="checkbox"] {
    width: 1.2rem;
    height: 1.2rem;
    accent-color: var(--cor-primary);
}

.option-group select {
    width: 100%;
    padding: 0.75rem;
    background: var(--cor-background);
    border: 1px solid var(--cor-surface-light);
    border-radius: var(--border-radius);
    color: var(--cor-text);
    font-size: 1rem;
}

.option-group select:focus {
    outline: none;
    border-color: var(--cor-primary);
}

/* Language Select */
#language-select {
    width: 100%;
    margin-bottom: 2rem;
}

/* Story Preview */
.story-preview {
    background: var(--cor-surface);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin-bottom: 2rem;
    border: 1px solid var(--cor-surface-light);
}

.story-preview h3 {
    color: var(--cor-primary);
    margin-bottom: 1rem;
}

#story-preview-content {
    color: var(--cor-text-muted);
    line-height: 1.7;
}

/* Processing Step */
.loading-animation {
    width: 50px;
    height: 50px;
    margin: 2rem auto;
    border: 3px solid var(--cor-surface-light);
    border-top: 3px solid var(--cor-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-phrases {
    text-align: center;
    color: var(--cor-text-muted);
    font-style: italic;
    margin-top: 1rem;
}

/* Result Step */
#result-textarea {
    width: 100%;
    min-height: 400px;
    padding: 1.5rem;
    background: var(--cor-surface);
    border: 1px solid var(--cor-surface-light);
    border-radius: var(--border-radius);
    color: var(--cor-text);
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: 2rem;
    resize: vertical;
    font-family: inherit;
}

#result-textarea:focus {
    outline: none;
    border-color: var(--cor-primary);
}

.final-actions-container {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.experimental-tag {
    background: var(--cor-accent);
    color: white;
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-size: 0.7rem;
    margin-left: 0.5rem;
}

/* Copy Feedback */
.copy-feedback {
    text-align: center;
    margin-bottom: 1rem;
    opacity: 0;
    transition: opacity 0.3s ease;
    color: var(--cor-success);
    font-weight: 500;
}

.copy-feedback.show {
    opacity: 1;
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--cor-surface);
    border-radius: var(--border-radius);
    padding: 2rem;
    max-width: 90vw;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    border: 1px solid var(--cor-surface-light);
    transform: scale(0.9);
    transition: var(--transition);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal button[aria-label="Fechar"] {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--cor-text-muted);
    cursor: pointer;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.modal button[aria-label="Fechar"]:hover {
    background: var(--cor-surface-light);
    color: var(--cor-text);
}

/* Story List Modal */
#story-list-overlay,
#categories-modal-overlay,
#suggestion-modal-overlay,
#voice-selection-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

#story-list-overlay.active,
#categories-modal-overlay.active,
#suggestion-modal-overlay.active,
#voice-selection-overlay.active {
    opacity: 1;
    visibility: visible;
}

#story-list-modal,
#categories-modal,
#suggestion-modal,
#voice-selection-modal {
    background: var(--cor-surface);
    border-radius: var(--border-radius);
    padding: 2rem;
    max-width: 800px;
    width: 90vw;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    border: 1px solid var(--cor-surface-light);
}

.story-filters {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.story-filters select,
.story-filters input {
    flex: 1;
    min-width: 200px;
    padding: 0.75rem;
    background: var(--cor-background);
    border: 1px solid var(--cor-surface-light);
    border-radius: var(--border-radius);
    color: var(--cor-text);
}

#story-list-container {
    list-style: none;
    max-height: 400px;
    overflow-y: auto;
}

#story-list-container li {
    padding: 1rem;
    border-bottom: 1px solid var(--cor-surface-light);
    cursor: pointer;
    transition: var(--transition);
}

#story-list-container li:hover {
    background: var(--cor-surface-light);
}

/* Suggestion Modal */
#suggestion-modal input,
#suggestion-modal textarea,
#suggestion-modal select {
    width: 100%;
    padding: 0.75rem;
    margin-bottom: 1rem;
    background: var(--cor-background);
    border: 1px solid var(--cor-surface-light);
    border-radius: var(--border-radius);
    color: var(--cor-text);
    font-family: inherit;
}

#suggestion-modal textarea {
    min-height: 100px;
    resize: vertical;
}

.suggestion-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

/* Error Messages */
.error-message {
    color: var(--cor-error);
    text-align: center;
    margin-top: 1rem;
    padding: 1rem;
    background: rgba(244, 67, 54, 0.1);
    border-radius: var(--border-radius);
    border: 1px solid rgba(244, 67, 54, 0.3);
    display: none;
}

.error-message.show {
    display: block;
}

/* Suggestion Area */
.seggest_area {
    text-align: center;
    margin-top: 2rem;
    color: var(--cor-text-muted);
}

.seggest_area div {
    color: var(--cor-laranja-link);
    cursor: pointer;
    text-decoration: underline;
    margin-top: 0.5rem;
    transition: var(--transition);
}

.seggest_area div:hover {
    color: var(--cor-accent);
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .header-content h1 {
        font-size: 2rem;
    }
    
    .step {
        padding: 1rem;
    }
    
    .step-text {
        font-size: 1.2rem;
    }
    
    .genre-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .genre-btn {
        padding: 1.5rem;
    }
    
    .search-options {
        flex-direction: column;
        align-items: center;
    }
    
    .final-actions-container {
        flex-direction: column;
        align-items: center;
    }
    
    .story-filters {
        flex-direction: column;
    }
    
    .story-filters select,
    .story-filters input {
        min-width: auto;
    }
}

@media (max-width: 480px) {
    .header-content h1 {
        font-size: 1.5rem;
    }
    
    .modal {
        padding: 1rem;
        max-width: 95vw;
    }
    
    .btn {
        min-width: auto;
        width: 100%;
    }
}