/* CSS Reset and Base Styles */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* CSS Custom Properties */
:root {
    /* Color Palette */
    --color-primary: #05386B;
    --color-secondary: #379683;
    --color-accent: #5CDB95;
    --color-light-accent: #8EE4AF;
    --color-background: #EDF5E1;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #05386B 0%, #379683 100%);
    --gradient-secondary: linear-gradient(135deg, #379683 0%, #5CDB95 100%);
    --gradient-accent: linear-gradient(135deg, #5CDB95 0%, #8EE4AF 100%);
    --gradient-background: linear-gradient(135deg, #EDF5E1 0%, #ffffff 100%);
    
    /* Dark Mode Colors */
    --color-dark-bg: #0a1a2e;
    --color-dark-surface: #16213e;
    --color-dark-text: #e4e6ea;
    --color-dark-text-secondary: #b0b3b8;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 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: 1.875rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-modal: 1050;
    --z-toast: 1100;
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --color-background: var(--color-dark-bg);
    --color-surface: var(--color-dark-surface);
    --color-text: var(--color-dark-text);
    --color-text-secondary: var(--color-dark-text-secondary);
    --gradient-background: linear-gradient(135deg, var(--color-dark-bg) 0%, var(--color-dark-surface) 100%);
}

/* Base Styles */
html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-primary);
    background: var(--gradient-background);
    min-height: 100vh;
    transition: background var(--transition-normal), color var(--transition-normal);
}

[data-theme="dark"] body {
    color: var(--color-text);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header Styles */
.header {
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-lg) 0;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header__content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-md);
}

.header__title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.header__icon {
    font-size: var(--font-size-3xl);
    animation: pulse 2s infinite;
}

.header__controls {
    display: flex;
    gap: var(--spacing-sm);
}

/* Theme Toggle */
.theme-toggle,
.view-toggle {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: var(--radius-md);
    padding: var(--spacing-sm);
    color: white;
    cursor: pointer;
    transition: all var(--transition-fast);
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover,
.view-toggle:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

.theme-toggle__icon,
.view-toggle__icon {
    font-size: var(--font-size-lg);
    transition: transform var(--transition-fast);
}

/* Main Content */
.main {
    padding: var(--spacing-2xl) 0;
    min-height: calc(100vh - 200px);
}

/* Idea Input Section */
.idea-input {
    margin-bottom: var(--spacing-2xl);
}

.idea-input__container {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(92, 219, 149, 0.2);
    position: relative;
    overflow: hidden;
}

.idea-input__container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-secondary);
}

[data-theme="dark"] .idea-input__container {
    background: var(--color-surface);
    border-color: rgba(92, 219, 149, 0.3);
}

.idea-input__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.idea-input__title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-primary);
}

[data-theme="dark"] .idea-input__title {
    color: var(--color-text);
}

.idea-input__voice-status {
    font-size: var(--font-size-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    background: var(--color-background);
    color: var(--color-secondary);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.idea-input__voice-status.active {
    opacity: 1;
}

/* Form Styles */
.idea-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.form-label {
    font-weight: 500;
    color: var(--color-primary);
    font-size: var(--font-size-sm);
}

[data-theme="dark"] .form-label {
    color: var(--color-text);
}

.form-input,
.form-textarea,
.form-select {
    padding: var(--spacing-md);
    border: 2px solid #e5e7eb;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-family: inherit;
    transition: all var(--transition-fast);
    background: white;
    color: var(--color-primary);
}

[data-theme="dark"] .form-input,
[data-theme="dark"] .form-textarea,
[data-theme="dark"] .form-select {
    background: var(--color-dark-bg);
    border-color: #374151;
    color: var(--color-text);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(92, 219, 149, 0.1);
}

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

.form-error {
    color: #ef4444;
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.form-error.visible {
    opacity: 1;
}

.char-counter {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    text-align: right;
    margin-top: var(--spacing-xs);
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-normal);
}

.btn:hover::before {
    left: 100%;
}

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

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn--secondary {
    background: white;
    color: var(--color-primary);
    border: 2px solid var(--color-accent);
}

[data-theme="dark"] .btn--secondary {
    background: var(--color-surface);
    color: var(--color-text);
    border-color: var(--color-accent);
}

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

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

.btn--voice:hover {
    transform: scale(1.05);
}

.btn--voice.recording {
    animation: pulse 1s infinite;
    background: linear-gradient(135deg, #ef4444 0%, #f87171 100%);
    color: white;
}

.btn__icon {
    font-size: var(--font-size-lg);
}

.form-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    margin-top: var(--spacing-md);
}

/* Filters Section */
.filters {
    margin-bottom: var(--spacing-xl);
}

.filters__container {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    align-items: center;
}

[data-theme="dark"] .filters__container {
    background: var(--color-surface);
}

.search-box {
    position: relative;
    flex: 1;
    min-width: 250px;
}

.search-input {
    width: 100%;
    padding: var(--spacing-md);
    padding-right: 3rem;
    border: 2px solid #e5e7eb;
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    background: white;
}

[data-theme="dark"] .search-input {
    background: var(--color-dark-bg);
    border-color: #374151;
    color: var(--color-text);
}

.search-icon {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-text-secondary);
    pointer-events: none;
}

.filter-controls {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.filter-select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid #e5e7eb;
    border-radius: var(--radius-md);
    background: white;
    font-size: var(--font-size-sm);
    min-width: 120px;
}

[data-theme="dark"] .filter-select {
    background: var(--color-dark-bg);
    border-color: #374151;
    color: var(--color-text);
}

/* Ideas Section */
.ideas-section {
    margin-bottom: var(--spacing-2xl);
}

.ideas-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.ideas-title {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--color-primary);
}

[data-theme="dark"] .ideas-title {
    color: var(--color-text);
}

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

.stats-item {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* Ideas Container */
.ideas-container {
    display: grid;
    gap: var(--spacing-lg);
}

.ideas-container.grid-view {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.ideas-container.list-view {
    grid-template-columns: 1fr;
}

/* Idea Card */
.idea-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(92, 219, 149, 0.1);
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

[data-theme="dark"] .idea-card {
    background: var(--color-surface);
    border-color: rgba(92, 219, 149, 0.2);
}

.idea-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-accent);
}

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

.idea-card__title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-xs);
}

[data-theme="dark"] .idea-card__title {
    color: var(--color-text);
}

.idea-card__date {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

.idea-card__actions {
    display: flex;
    gap: var(--spacing-xs);
}

.action-btn {
    background: none;
    border: none;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
    transition: all var(--transition-fast);
    color: var(--color-text-secondary);
}

.action-btn:hover {
    background: var(--color-background);
    transform: scale(1.1);
}

[data-theme="dark"] .action-btn:hover {
    background: var(--color-dark-bg);
}

.idea-card__content {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

[data-theme="dark"] .idea-card__content {
    color: var(--color-text);
}

.idea-card__footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.idea-card__category {
    background: var(--gradient-accent);
    color: var(--color-primary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
}

.idea-card__tags {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

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

[data-theme="dark"] .tag {
    background: var(--color-dark-bg);
    color: var(--color-light-accent);
}

.idea-card__status {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-accent);
}

.status-indicator.nova {
    background: var(--color-accent);
}

.status-indicator.em-andamento {
    background: #f59e0b;
}

.status-indicator.realizada {
    background: #10b981;
}

.status-indicator.arquivada {
    background: #6b7280;
}

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

.empty-state__icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-state__title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

[data-theme="dark"] .empty-state__title {
    color: var(--color-text);
}

.empty-state__text {
    font-size: var(--font-size-base);
}

/* Load More */
.load-more-container {
    text-align: center;
    margin-top: var(--spacing-xl);
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: var(--z-modal);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

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

.modal__backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal__content {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    transform: scale(0.9);
    transition: transform var(--transition-normal);
}

[data-theme="dark"] .modal__content {
    background: var(--color-surface);
}

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

.modal__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.modal__title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-primary);
}

[data-theme="dark"] .modal__title {
    color: var(--color-text);
}

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

.modal__close:hover {
    background: var(--color-background);
    color: var(--color-primary);
}

[data-theme="dark"] .modal__close:hover {
    background: var(--color-dark-bg);
    color: var(--color-text);
}

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

.modal__actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
    margin-top: var(--spacing-lg);
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.toast {
    background: white;
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--color-accent);
    max-width: 300px;
    transform: translateX(100%);
    transition: transform var(--transition-normal);
}

[data-theme="dark"] .toast {
    background: var(--color-surface);
}

.toast.show {
    transform: translateX(0);
}

.toast.success {
    border-left-color: #10b981;
}

.toast.error {
    border-left-color: #ef4444;
}

.toast.warning {
    border-left-color: #f59e0b;
}

.toast__content {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.toast__icon {
    font-size: var(--font-size-lg);
}

.toast__message {
    color: var(--color-primary);
    font-size: var(--font-size-sm);
}

[data-theme="dark"] .toast__message {
    color: var(--color-text);
}

/* Footer */
.footer {
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-lg) 0;
    text-align: center;
    margin-top: auto;
}

.footer__text {
    font-size: var(--font-size-sm);
}

.footer__link {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer__link:hover {
    color: var(--color-light-accent);
    text-decoration: underline;
}

/* Animations */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

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

@keyframes slideIn {
    from {
        transform: translateX(-100%);
    }
    to {
        transform: translateX(0);
    }
}

.fade-in {
    animation: fadeIn var(--transition-normal) ease-out;
}

.slide-in {
    animation: slideIn var(--transition-normal) ease-out;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .header__content {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .header__title {
        font-size: var(--font-size-xl);
    }
    
    .idea-input__container {
        padding: var(--spacing-md);
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .filters__container {
        flex-direction: column;
        align-items: stretch;
    }
    
    .filter-controls {
        justify-content: center;
    }
    
    .ideas-header {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .ideas-container.grid-view {
        grid-template-columns: 1fr;
    }
    
    .idea-card__header {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .idea-card__footer {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .modal__content {
        margin: var(--spacing-md);
        width: calc(100% - 2rem);
    }
    
    .modal__actions {
        flex-direction: column;
    }
    
    .toast-container {
        top: var(--spacing-sm);
        right: var(--spacing-sm);
        left: var(--spacing-sm);
    }
    
    .toast {
        max-width: none;
    }
}

@media (max-width: 480px) {
    .header {
        padding: var(--spacing-md) 0;
    }
    
    .main {
        padding: var(--spacing-lg) 0;
    }
    
    .idea-input__header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }
    
    .btn {
        font-size: var(--font-size-sm);
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .search-box {
        min-width: auto;
    }
    
    .filter-controls {
        flex-direction: column;
    }
    
    .filter-select {
        min-width: auto;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for keyboard navigation */
.btn:focus,
.form-input:focus,
.form-textarea:focus,
.form-select:focus,
.search-input:focus,
.action-btn:focus,
.theme-toggle:focus,
.view-toggle:focus {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --shadow-sm: 0 2px 4px 0 rgba(0, 0, 0, 0.3);
        --shadow-md: 0 4px 8px 0 rgba(0, 0, 0, 0.3);
        --shadow-lg: 0 8px 16px 0 rgba(0, 0, 0, 0.3);
        --shadow-xl: 0 16px 32px 0 rgba(0, 0, 0, 0.3);
    }
    
    .btn {
        border: 2px solid currentColor;
    }
    
    .idea-card {
        border: 2px solid var(--color-accent);
    }
}

/* Print styles */
@media print {
    .header__controls,
    .filters,
    .form-actions,
    .idea-card__actions,
    .modal,
    .toast-container {
        display: none !important;
    }
    
    .idea-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
}