/**
 * Organizador de Ideias - Styles
 * Desenvolvido por B20 Conteúdo Digital
 * https://www.b20.com.br
 */

/* ========================================
   CSS Custom Properties
   ======================================== */
:root {
    /* Color Palette */
    --color-primary: #833AB4;
    --color-secondary: #FD1D1D;
    --color-accent-1: #F77737;
    --color-accent-2: #FCAF45;
    --color-accent-3: #FFDC80;
    
    /* Semantic Colors */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-danger: #ef4444;
    --color-info: #3b82f6;
    
    /* Neutral Colors */
    --color-bg: #ffffff;
    --color-bg-secondary: #f8fafc;
    --color-bg-tertiary: #f1f5f9;
    --color-text: #1e293b;
    --color-text-secondary: #64748b;
    --color-border: #e2e8f0;
    --color-shadow: rgba(0, 0, 0, 0.1);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-header: 1500;
    --z-modal: 2000;
    --z-toast: 3000;
    --z-nav: 100;
    
    /* Layout */
    --header-height: 70px;
    --bottom-nav-height: 64px;
    --max-width: 1200px;
}

/* ========================================
   Reset & Base Styles
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg-secondary);
    padding-top: var(--header-height);
    padding-bottom: var(--bottom-nav-height);
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-2xl); }
h2 { font-size: var(--font-size-xl); }
h3 { font-size: var(--font-size-lg); }

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-secondary);
}

/* ========================================
   Header
   ======================================== */
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: var(--z-header);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    padding: var(--spacing-md);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(10px);
    transition: all var(--transition-base);
}
.black-bar {
position: fixed;
bottom: 0;
left: 0;
right: 0;
height: 30px;
background-color: #000000;
z-index: 1001;
}
.app-header.scrolled {
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
    padding: var(--spacing-sm) var(--spacing-md);
}

.header-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.header-content img {
    height: 50px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
    transition: transform var(--transition-fast);
}

.header-content img:hover {
    transform: scale(1.05);
}

.app-header h1 {
    font-size: var(--font-size-xl);
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex: 1;
}

.header-stats {
    display: flex;
    gap: var(--spacing-md);
}

.stat-badge {
    background: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
    backdrop-filter: blur(10px);
}

/* ========================================
   Main Container
   ======================================== */
.main-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-lg);
    min-height: calc(100vh - var(--header-height) - var(--bottom-nav-height));
}

.content-section {
    display: none;
    animation: fadeIn var(--transition-base);
}

.content-section.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    box-shadow: 0 1px 3px var(--color-shadow);
}

.section-header h2 {
    margin: 0;
    color: var(--color-primary);
    flex: 1;
}

/* ========================================
   Buttons
   ======================================== */
.btn-primary,
.btn-secondary,
.btn-danger {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: all var(--transition-fast);
    min-height: 44px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    box-shadow: 0 2px 8px rgba(131, 58, 180, 0.3);
    white-space: nowrap;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-base);
    letter-spacing: 0.5px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(131, 58, 180, 0.5);
}

.btn-primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(131, 58, 180, 0.3);
}

.btn-primary i {
    font-size: var(--font-size-lg);
    transition: transform var(--transition-fast);
}

.btn-primary:hover i {
    transform: scale(1.2) rotate(90deg);
}

.btn-primary:focus {
    outline: 3px solid rgba(131, 58, 180, 0.5);
    outline-offset: 2px;
}

.btn-primary:focus:not(:focus-visible) {
    outline: none;
}

.btn-secondary {
    background: var(--color-bg);
    color: var(--color-text);
    border: 2px solid var(--color-border);
}

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

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

.btn-danger:hover {
    background: #dc2626;
    transform: translateY(-2px);
}

.btn-close {
    background: transparent;
    border: none;
    font-size: var(--font-size-xl);
    cursor: pointer;
    color: var(--color-text-secondary);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    min-width: 44px;
    min-height: 44px;
}

.btn-close:hover {
    background: var(--color-bg-tertiary);
    color: var(--color-text);
}

.btn-voice {
    background: var(--color-accent-2);
    border: none;
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
    margin-left: var(--spacing-sm);
}

.btn-voice:hover {
    background: var(--color-accent-1);
    transform: scale(1.05);
}

.btn-voice.recording {
    background: var(--color-danger);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

@keyframes buttonGlow {
    0%, 100% {
        box-shadow: 0 2px 8px rgba(131, 58, 180, 0.3);
    }
    50% {
        box-shadow: 0 4px 16px rgba(131, 58, 180, 0.6);
    }
}

.section-header .btn-primary {
    animation: buttonGlow 2s ease-in-out infinite;
}

.section-header .btn-primary:hover {
    animation: none;
}

/* ========================================
   Filters
   ======================================== */
.filters-container {
    background: var(--color-bg);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    box-shadow: 0 1px 3px var(--color-shadow);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: stretch;
}

.filter-group label {
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.filter-select,
.search-input {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    transition: all var(--transition-fast);
    background: var(--color-bg);
    min-height: 44px;
    width: 100%;
}

.filter-select:focus,
.search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(131, 58, 180, 0.1);
}

.search-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: stretch;
}

.search-group label {
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.search-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

.search-icon {
    position: absolute;
    left: var(--spacing-md);
    color: var(--color-text-secondary);
    pointer-events: none;
    z-index: 1;
}

.search-input {
    padding-left: calc(var(--spacing-md) * 2.5);
    width: 100%;
    height: auto;
    min-height: 44px;
}

/* ========================================
   Ideas List
   ======================================== */
.ideas-list {
    display: grid;
    gap: var(--spacing-md);
}

.idea-card {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: 0 1px 3px var(--color-shadow);
    transition: all var(--transition-base);
    cursor: pointer;
    border-left: 4px solid var(--color-primary);
}

.idea-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--color-shadow);
}

.idea-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
    gap: var(--spacing-md);
}

.idea-card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
    flex: 1;
}

.idea-card-priority {
    display: flex;
    gap: var(--spacing-xs);
    color: var(--color-accent-2);
}

.idea-card-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.idea-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    align-items: center;
}

.idea-category,
.idea-status {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.idea-category {
    background: var(--color-bg-tertiary);
    color: var(--color-text);
}

.idea-status {
    background: var(--color-info);
    color: white;
}

.idea-status.pending {
    background: var(--color-warning);
}

.idea-status.in-progress {
    background: var(--color-info);
}

.idea-status.completed {
    background: var(--color-success);
}

.idea-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

.tag {
    background: var(--color-accent-3);
    color: var(--color-text);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
}

.idea-date {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    margin-left: auto;
}

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

.empty-state i {
    color: var(--color-border);
    margin-bottom: var(--spacing-lg);
}

.empty-state h3 {
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

/* ========================================
   Statistics
   ======================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--color-bg);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    box-shadow: 0 1px 3px var(--color-shadow);
    transition: all var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 4px 12px var(--color-shadow);
}

.stat-card i {
    font-size: var(--font-size-3xl);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.stat-card h3 {
    font-size: var(--font-size-3xl);
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.stat-card p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    margin: 0;
}

.category-stats {
    background: var(--color-bg);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: 0 1px 3px var(--color-shadow);
}

.category-stats h3 {
    margin-bottom: var(--spacing-lg);
}

.category-stats-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.category-stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-md);
}

.category-stat-name {
    font-weight: 600;
}

.category-stat-count {
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-full);
    font-weight: 600;
}

/* ========================================
   Modal
   ======================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    padding: var(--spacing-md);
    backdrop-filter: blur(4px);
    animation: fadeIn var(--transition-base);
}

.modal-content {
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideUp var(--transition-base);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 2px solid var(--color-border);
}

.modal-header h2 {
    margin: 0;
    color: var(--color-primary);
}

/* ========================================
   Forms
   ======================================== */
.idea-form {
    padding: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.form-group label small {
    font-weight: 400;
    color: var(--color-text-secondary);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(131, 58, 180, 0.1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.error-message {
    display: block;
    color: var(--color-danger);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

.voice-status {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-info);
    margin-top: var(--spacing-xs);
}

/* ========================================
   Star Rating
   ======================================== */
.star-rating {
    display: flex;
    gap: var(--spacing-sm);
}

.star {
    background: none;
    border: none;
    font-size: var(--font-size-2xl);
    color: var(--color-border);
    cursor: pointer;
    transition: all var(--transition-fast);
    padding: var(--spacing-xs);
}

.star:hover,
.star.active {
    color: var(--color-accent-2);
    transform: scale(1.1);
}

.star i {
    pointer-events: none;
}

/* ========================================
   Tags
   ======================================== */
.tags-preview {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

/* ========================================
   Form Actions
   ======================================== */
.form-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--color-border);
}

/* ========================================
   Idea Details (View Modal)
   ======================================== */
.modal-view {
    max-width: 700px;
}

.idea-details {
    padding: var(--spacing-lg);
}

.detail-section {
    margin-bottom: var(--spacing-xl);
}

.detail-section h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    align-items: center;
}

.detail-category,
.detail-status {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-weight: 600;
}

.detail-category {
    background: var(--color-bg-tertiary);
    color: var(--color-text);
}

.detail-status {
    background: var(--color-info);
    color: white;
}

.detail-priority {
    display: flex;
    gap: var(--spacing-xs);
    color: var(--color-accent-2);
    font-size: var(--font-size-xl);
}

.detail-dates {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.detail-dates p {
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.detail-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    padding-top: var(--spacing-lg);
    border-top: 2px solid var(--color-border);
}

/* ========================================
   FAQ
   ======================================== */
.faq-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.faq-item {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 1px 3px var(--color-shadow);
}

.faq-question {
    width: 100%;
    padding: var(--spacing-lg);
    background: var(--color-bg);
    border: none;
    text-align: left;
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-fast);
    color: var(--color-text);
}

.faq-question:hover {
    background: var(--color-bg-secondary);
}

.faq-icon {
    font-size: var(--font-size-xl);
    color: var(--color-primary);
    transition: transform var(--transition-fast);
}

.faq-question[aria-expanded="true"] .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
    color: var(--color-text-secondary);
    line-height: 1.8;
    animation: slideDown var(--transition-base);
}

@keyframes slideDown {
    from {
        opacity: 0;
        max-height: 0;
    }
    to {
        opacity: 1;
        max-height: 500px;
    }
}

/* ========================================
   Bottom Navigation
   ======================================== */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-top: 2px solid var(--color-border);
    display: flex;
    justify-content: space-around;
    padding: var(--spacing-sm) 0;
    z-index: var(--z-nav);
    box-shadow: 0 -2px 8px var(--color-shadow);
    margin-bottom: 80px;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    border-radius: var(--radius-md);
    min-width: 80px;
    min-height: 44px;
}

.nav-item i {
    font-size: var(--font-size-xl);
}

.nav-item span {
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.nav-item:hover,
.nav-item.active {
    color: var(--color-primary);
    background: rgba(131, 58, 180, 0.1);
}

/* ========================================
   Toast Notification
   ======================================== */
.toast {
    position: fixed;
    bottom: calc(var(--bottom-nav-height) + var(--spacing-lg));
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-text);
    color: white;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    z-index: var(--z-toast);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    animation: slideUp var(--transition-base);
    max-width: 90%;
}

.toast.success {
    background: var(--color-success);
}

.toast.error {
    background: var(--color-danger);
}

.toast.warning {
    background: var(--color-warning);
}

.toast-icon {
    font-size: var(--font-size-xl);
}

/* ========================================
   Footer
   ======================================== */
.app-footer {
    background: var(--color-bg-tertiary);
    padding: var(--spacing-xl) var(--spacing-lg);
    text-align: center;
    color: var(--color-text-secondary);
    margin-top: var(--spacing-2xl);
    border-top: 2px solid var(--color-border);
    margin-bottom: 60px;
}

.app-footer p {
    margin-bottom: var(--spacing-sm);
}

.b20-link {
    color: var(--color-primary);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.b20-link:hover {
    text-decoration: underline;
    transform: scale(1.05);
    display: inline-block;
}

/* ========================================
   Utility Classes
   ======================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

[hidden] {
    display: none !important;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
    :root {
        --font-size-2xl: 1.5rem;
        --font-size-xl: 1.125rem;
        --spacing-lg: 1rem;
        --spacing-xl: 1.5rem;
        --header-height: 80px;
    }
    
    .app-header {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .header-content {
        gap: var(--spacing-sm);
    }
    
    .header-content img {
        height: 40px;
    }
    
    .app-header h1 {
        font-size: var(--font-size-base);
    }
    
    .stat-badge {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: var(--font-size-xs);
    }
    
    .main-container {
        padding: var(--spacing-md);
    }
    
    .filters-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        padding: var(--spacing-md);
    }
    
    .search-group {
        grid-column: 1;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .modal-content {
        max-height: 95vh;
    }
    
    .form-actions,
    .detail-actions {
        flex-direction: column;
    }
    
    .form-actions button,
    .detail-actions button {
        width: 100%;
    }
    
    .section-header {
        gap: var(--spacing-lg);
    }
    
    .section-header button {
        min-width: 160px;
    }
}

@media (max-width: 480px) {
    :root {
        --header-height: 110px;
    }
    
    .header-content {
        justify-content: center;
    }
    
    .header-content img {
        height: 35px;
    }
    
    .app-header h1 {
        font-size: var(--font-size-sm);
        text-align: center;
    }
    
    .section-header {
        flex-direction: column;
        align-items: stretch;
        gap: var(--spacing-lg);
    }
    
    .section-header h2 {
        text-align: center;
    }
    
    .section-header button {
        width: 100%;
        justify-content: center;
        padding: var(--spacing-md);
        font-size: var(--font-size-lg);
        min-height: 50px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    .bottom-nav,
    .app-header,
    .filters-container,
    .btn-primary,
    .btn-secondary,
    .btn-danger {
        display: none !important;
    }
    
    .main-container {
        padding: 0;
    }
    
    .idea-card {
        page-break-inside: avoid;
    }
}