/**
 * Frontend Styles for Brand Voice Agent
 */

:root {
    --bv-primary: #667eea;
    --bv-primary-dark: #5a67d8;
    --bv-secondary: #764ba2;
    --bv-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --bv-success: #48bb78;
    --bv-warning: #ed8936;
    --bv-error: #f56565;
    --bv-text: #2d3748;
    --bv-text-light: #718096;
    --bv-border: #e2e8f0;
    --bv-bg: #f7fafc;
}

.brand-voice-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--bv-text);
}

.brand-voice-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--bv-border);
}

.brand-voice-header h2 {
    margin: 0;
    background: var(--bv-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.usage-badge {
    background: var(--bv-bg);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 13px;
    color: var(--bv-text-light);
    border: 1px solid var(--bv-border);
}

/* Login/No Access States */
.brand-voice-login-required,
.brand-voice-no-access {
    background: #fff;
    border-radius: 12px;
    padding: 50px 30px;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.bv-icon {
    font-size: 48px;
    margin-bottom: 15px;
}

/* Buttons */
.bv-primary-btn {
    background: var(--bv-gradient);
    color: #fff;
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.bv-primary-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.bv-primary-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.bv-large-btn {
    width: 100%;
    padding: 16px;
    font-size: 16px;
}

.bv-secondary-btn {
    background: #fff;
    color: var(--bv-primary);
    padding: 10px 20px;
    border: 2px solid var(--bv-primary);
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.bv-secondary-btn:hover {
    background: var(--bv-primary);
    color: #fff;
}

/* Profile Section */
.bv-profile-section {
    background: #fff;
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 25px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.bv-profile-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.bv-profile-header h3 {
    margin: 0;
}

.bv-profile-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 15px;
}

.bv-profile-card {
    background: var(--bv-bg);
    border: 2px solid var(--bv-border);
    border-radius: 8px;
    padding: 15px;
    cursor: pointer;
    transition: all 0.2s;
}

.bv-profile-card:hover {
    border-color: var(--bv-primary);
}

.bv-profile-card.active {
    border-color: var(--bv-primary);
    background: linear-gradient(135deg, rgba(102,126,234,0.1) 0%, rgba(118,75,162,0.1) 100%);
}

.bv-profile-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 10px;
}

.bv-profile-card h4 {
    margin: 0;
    font-size: 16px;
}

.bv-sample-count {
    font-size: 12px;
    color: var(--bv-text-light);
    background: #fff;
    padding: 2px 8px;
    border-radius: 10px;
}

.bv-profile-traits {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
}

.bv-trait-tag {
    background: var(--bv-gradient);
    color: #fff;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 11px;
}

.bv-profile-hint {
    font-size: 13px;
    color: var(--bv-text-light);
    margin: 0;
    font-style: italic;
}

.bv-empty-state {
    text-align: center;
    padding: 30px;
    color: var(--bv-text-light);
}

/* Modal */
.bv-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

.bv-modal-content {
    background: #fff;
    border-radius: 12px;
    padding: 25px;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.bv-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.bv-modal-header h3 {
    margin: 0;
}

.bv-modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--bv-text-light);
}

/* Tabs */
.bv-tabs {
    display: flex;
    border-bottom: 2px solid var(--bv-border);
    margin-bottom: 25px;
    overflow-x: auto;
}

.bv-tab {
    padding: 15px 25px;
    background: none;
    border: none;
    font-size: 14px;
    font-weight: 500;
    color: var(--bv-text-light);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    white-space: nowrap;
    transition: all 0.2s;
}

.bv-tab:hover {
    color: var(--bv-text);
}

.bv-tab.active {
    color: var(--bv-primary);
    border-bottom-color: var(--bv-primary);
}

.bv-tab-content {
    display: none;
}

.bv-tab-content.active {
    display: block;
}

/* Section Intro */
.bv-section-intro {
    margin-bottom: 25px;
}

.bv-section-intro h3 {
    margin: 0 0 10px;
}

.bv-section-intro p {
    margin: 0;
    color: var(--bv-text-light);
}

/* Forms */
.bv-form {
    background: #fff;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.bv-form-row {
    display: flex;
    gap: 20px;
}

.bv-form-group {
    flex: 1;
    margin-bottom: 20px;
}

.bv-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--bv-text);
}

.bv-form-group input,
.bv-form-group select,
.bv-form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--bv-border);
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.bv-form-group input:focus,
.bv-form-group select:focus,
.bv-form-group textarea:focus {
    outline: none;
    border-color: var(--bv-primary);
}

.bv-form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.bv-field-hint {
    font-size: 12px;
    color: var(--bv-text-light);
    margin-top: 5px;
}

.bv-score-input {
    display: flex;
    align-items: center;
    gap: 15px;
}

.bv-score-input input[type="range"] {
    flex: 1;
}

#score-display {
    min-width: 80px;
    text-align: right;
    font-weight: 500;
}

/* Samples List */
.bv-samples-list {
    margin-top: 30px;
}

.bv-samples-list h4 {
    margin-bottom: 15px;
}

.bv-sample-item {
    background: #fff;
    border: 1px solid var(--bv-border);
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 10px;
    position: relative;
}

.bv-sample-meta {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
    flex-wrap: wrap;
}

.bv-sample-tag {
    background: var(--bv-bg);
    padding: 3px 10px;
    border-radius: 4px;
    font-size: 12px;
    color: var(--bv-text-light);
}

.bv-sample-tag.type {
    background: var(--bv-primary);
    color: #fff;
}

.bv-sample-content {
    font-size: 14px;
    color: var(--bv-text);
    line-height: 1.5;
    max-height: 80px;
    overflow: hidden;
    position: relative;
}

.bv-sample-content::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 30px;
    background: linear-gradient(transparent, #fff);
}

.bv-sample-delete {
    position: absolute;
    top: 10px;
    right: 10px;
    background: none;
    border: none;
    color: var(--bv-error);
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.2s;
}

.bv-sample-delete:hover {
    opacity: 1;
}

/* Analyze Section */
.bv-analyze-card {
    background: #fff;
    border-radius: 12px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.bv-analyze-requirements {
    margin-bottom: 25px;
    text-align: left;
    max-width: 300px;
    margin-left: auto;
    margin-right: auto;
}

.bv-analyze-requirements h4 {
    margin-bottom: 10px;
}

.bv-analyze-requirements ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.bv-analyze-requirements li {
    padding: 8px 0 8px 30px;
    position: relative;
}

.bv-analyze-requirements li::before {
    content: '○';
    position: absolute;
    left: 0;
    color: var(--bv-text-light);
}

.bv-analyze-requirements li.complete::before {
    content: '✓';
    color: var(--bv-success);
}

/* Brand DNA Display */
.bv-brand-dna {
    background: #fff;
    border-radius: 12px;
    padding: 25px;
    margin-top: 25px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.bv-dna-section {
    margin-bottom: 25px;
    padding-bottom: 25px;
    border-bottom: 1px solid var(--bv-border);
}

.bv-dna-section:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.bv-dna-section h4 {
    margin: 0 0 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.bv-dna-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.bv-dna-item {
    background: var(--bv-bg);
    padding: 12px;
    border-radius: 6px;
}

.bv-dna-label {
    font-size: 12px;
    color: var(--bv-text-light);
    margin-bottom: 5px;
}

.bv-dna-value {
    font-weight: 500;
}

.bv-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.bv-tag {
    background: var(--bv-gradient);
    color: #fff;
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 13px;
}

.bv-tag.avoid {
    background: var(--bv-error);
}

/* Results */
.bv-results {
    background: #fff;
    border-radius: 12px;
    margin-top: 25px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.bv-results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    background: var(--bv-bg);
    border-bottom: 1px solid var(--bv-border);
}

.bv-results-header h4 {
    margin: 0;
}

.bv-results-actions {
    display: flex;
    gap: 10px;
}

.bv-results-content {
    padding: 20px;
    white-space: pre-wrap;
    line-height: 1.6;
}

/* Tools Grid */
.bv-tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.bv-tool-card {
    background: #fff;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.bv-tool-icon {
    font-size: 32px;
    margin-bottom: 10px;
}

.bv-tool-card h4 {
    margin: 0 0 10px;
}

.bv-tool-card > p {
    color: var(--bv-text-light);
    font-size: 14px;
    margin-bottom: 20px;
}

.bv-tool-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.bv-tool-form textarea,
.bv-tool-form select {
    padding: 12px;
    border: 2px solid var(--bv-border);
    border-radius: 6px;
    font-size: 14px;
}

.bv-tool-form textarea:focus,
.bv-tool-form select:focus {
    outline: none;
    border-color: var(--bv-primary);
}

.bv-tool-result {
    margin-top: 15px;
    padding: 15px;
    background: var(--bv-bg);
    border-radius: 6px;
    font-size: 14px;
    line-height: 1.5;
}

/* Score Display */
.bv-score-display {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 15px;
}

.bv-score-circle {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: bold;
    color: #fff;
}

.bv-score-circle.high {
    background: var(--bv-success);
}

.bv-score-circle.medium {
    background: var(--bv-warning);
}

.bv-score-circle.low {
    background: var(--bv-error);
}

/* ========================================
   Responsive Design
   ======================================== */

/* Tablets */
@media (max-width: 768px) {
    .brand-voice-container {
        padding: 16px;
    }

    .bv-profile-cards {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    }

    .bv-dna-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    }

    .bv-modal-content {
        max-width: 90%;
        padding: 20px;
    }
}

/* Small tablets and large phones */
@media (max-width: 600px) {
    .brand-voice-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }

    .brand-voice-header h2 {
        font-size: 1.5rem;
    }

    .bv-form-row {
        flex-direction: column;
        gap: 0;
    }

    .bv-tabs {
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
    }

    .bv-tab {
        padding: 12px 15px;
        font-size: 13px;
    }

    .bv-tools-grid {
        grid-template-columns: 1fr;
    }

    .bv-profile-cards {
        grid-template-columns: 1fr;
    }

    .bv-profile-section {
        padding: 20px;
    }

    .bv-form {
        padding: 20px;
    }

    .bv-analyze-card {
        padding: 24px;
    }

    .bv-brand-dna {
        padding: 20px;
    }

    .bv-dna-grid {
        grid-template-columns: 1fr;
    }

    .bv-score-display {
        flex-direction: column;
        text-align: center;
    }

    .bv-results-header {
        flex-direction: column;
        gap: 10px;
    }

    .bv-results-actions {
        width: 100%;
        justify-content: center;
    }
}

/* Mobile phones */
@media (max-width: 480px) {
    .brand-voice-container {
        padding: 12px;
    }

    .brand-voice-header h2 {
        font-size: 1.25rem;
    }

    .usage-badge {
        font-size: 12px;
        padding: 6px 12px;
    }

    .bv-section-intro h3 {
        font-size: 1.125rem;
    }

    .bv-section-intro p {
        font-size: 14px;
    }

    .bv-primary-btn {
        padding: 14px 20px;
        font-size: 14px;
    }

    .bv-secondary-btn {
        padding: 12px 18px;
        font-size: 13px;
    }

    .bv-form-group input,
    .bv-form-group select,
    .bv-form-group textarea {
        font-size: 16px; /* Prevents zoom on iOS */
        padding: 14px;
    }

    .bv-tool-card {
        padding: 20px;
    }

    .bv-tool-icon {
        font-size: 28px;
    }

    .bv-tool-card h4 {
        font-size: 1rem;
    }

    .bv-sample-item {
        padding: 12px;
    }

    .bv-sample-meta {
        gap: 6px;
    }

    .bv-sample-tag {
        font-size: 11px;
        padding: 2px 8px;
    }

    .bv-variation-item {
        padding: 12px;
    }
}

/* Extra small phones */
@media (max-width: 374px) {
    .brand-voice-header h2 {
        font-size: 1.125rem;
    }

    .bv-tab {
        padding: 10px 12px;
        font-size: 12px;
    }

    .bv-profile-card {
        padding: 12px;
    }

    .bv-profile-card h4 {
        font-size: 14px;
    }

    .bv-trait-tag {
        font-size: 10px;
        padding: 2px 8px;
    }

    .bv-score-circle {
        width: 60px;
        height: 60px;
        font-size: 22px;
    }
}

/* ========================================
   Touch Device Optimizations
   ======================================== */
@media (pointer: coarse) {
    .bv-primary-btn,
    .bv-secondary-btn {
        min-height: 48px;
    }

    .bv-tab {
        min-height: 44px;
    }

    .bv-profile-card {
        min-height: 44px;
    }

    .bv-modal-close {
        min-width: 44px;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .bv-sample-delete {
        min-width: 44px;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .bv-form-group input,
    .bv-form-group select,
    .bv-form-group textarea {
        font-size: 16px;
        min-height: 48px;
    }

    .bv-tool-form textarea,
    .bv-tool-form select {
        font-size: 16px;
        min-height: 48px;
    }
}

/* ========================================
   Focus Styles for Accessibility
   ======================================== */
.bv-primary-btn:focus-visible,
.bv-secondary-btn:focus-visible {
    outline: 3px solid var(--bv-primary);
    outline-offset: 2px;
}

.bv-tab:focus-visible {
    outline: 3px solid var(--bv-primary);
    outline-offset: -2px;
}

.bv-profile-card:focus-visible {
    outline: 3px solid var(--bv-primary);
    outline-offset: 2px;
}

.bv-form-group input:focus-visible,
.bv-form-group select:focus-visible,
.bv-form-group textarea:focus-visible {
    outline: none;
    border-color: var(--bv-primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.2);
}

.bv-modal-close:focus-visible {
    outline: 2px solid var(--bv-text);
    outline-offset: 2px;
}

/* ========================================
   High Contrast Mode Support
   ======================================== */
@media (prefers-contrast: high) {
    .bv-profile-card {
        border-width: 3px;
    }

    .bv-profile-card.active {
        border-width: 3px;
    }

    .bv-form-group input,
    .bv-form-group select,
    .bv-form-group textarea {
        border-width: 3px;
    }

    .bv-tab.active {
        border-bottom-width: 4px;
    }

    .bv-dna-section {
        border-bottom-width: 2px;
    }
}

/* ========================================
   Landscape Mobile Optimization
   ======================================== */
@media (max-height: 500px) and (orientation: landscape) {
    .brand-voice-header {
        margin-bottom: 16px;
        padding-bottom: 12px;
    }

    .bv-profile-section {
        padding: 16px;
        margin-bottom: 16px;
    }

    .bv-section-intro {
        margin-bottom: 16px;
    }

    .bv-modal-content {
        max-height: 80vh;
    }

    .bv-analyze-card {
        padding: 20px;
    }
}

/* ========================================
   Safe Area Insets (Notch Support)
   ======================================== */
@supports (padding: max(0px)) {
    .brand-voice-container {
        padding-left: max(20px, env(safe-area-inset-left));
        padding-right: max(20px, env(safe-area-inset-right));
    }

    @media (max-width: 480px) {
        .brand-voice-container {
            padding-left: max(12px, env(safe-area-inset-left));
            padding-right: max(12px, env(safe-area-inset-right));
        }
    }
}

/* Loading State */
.bv-loading {
    text-align: center;
    padding: 30px;
    color: var(--bv-text-light);
}

/* Variations Display */
.bv-variation-item {
    background: var(--bv-bg);
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 15px;
}

.bv-variation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.bv-variation-angle {
    font-size: 12px;
    color: var(--bv-text-light);
    background: #fff;
    padding: 3px 10px;
    border-radius: 4px;
}

.bv-variation-content {
    font-size: 14px;
    line-height: 1.6;
}