/**
 * VOX AKITA Stylesheet
 * 
 * Main stylesheet with CSS variables, responsive design, and modern CSS features
 * 
 * @package VOX_AKITA
 * @version 1.0.0
 */

/* ============================================
   CSS Variables
   ============================================ */
:root {
    /* Colors */
    --color-primary: #0066CC;
    --color-primary-dark: #004C99;
    --color-primary-light: #3385D6;
    --color-secondary: #FF6B35;
    --color-success: #28A745;
    --color-warning: #FFC107;
    --color-danger: #DC3545;
    --color-info: #17A2B8;
    
    /* Grayscale */
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;
    
    /* Text Colors */
    --color-text-primary: #111827;
    --color-text-secondary: #6B7280;
    --color-text-muted: #9CA3AF;
    
    /* Background Colors */
    --color-bg-primary: #FFFFFF;
    --color-bg-secondary: #F9FAFB;
    --color-bg-tertiary: #F3F4F6;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Font Sizes */
    --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;
    --font-size-4xl: 2.25rem;
    
    /* Font Weights */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Line Heights */
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    
    /* Border Radius */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-full: 9999px;
    
    /* 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);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 300ms ease-in-out;
    --transition-slow: 500ms ease-in-out;
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
}

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-secondary);
}

/* ============================================
   Layout
   ============================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

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

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--spacing-md);
}

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

a:hover {
    color: var(--color-primary-dark);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-normal);
    border-radius: var(--border-radius-md);
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(0);
}

.btn:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

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

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

.btn--outline {
    background-color: transparent;
    border-color: var(--color-primary);
    color: var(--color-primary);
}

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

.btn--sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
}

.btn--lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
}

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

.btn--warning {
    background-color: var(--color-warning);
    color: var(--color-gray-900);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* ============================================
   Forms
   ============================================ */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.form-label__required {
    color: var(--color-danger);
    margin-left: var(--spacing-xs);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--border-radius-md);
    transition: border-color 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(0, 102, 204, 0.1);
}

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

.form-help {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xs);
}

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

.form-group--error .form-input,
.form-group--error .form-textarea,
.form-group--error .form-select {
    border-color: var(--color-danger);
}

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

.form-checkbox__input {
    width: 1.25rem;
    height: 1.25rem;
    cursor: pointer;
}

.form-checkbox__label {
    cursor: pointer;
    user-select: none;
}

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

/* ============================================
   Opinion Cards
   ============================================ */
.opinions-list {
    display: grid;
    gap: var(--spacing-lg);
}

.opinion-card {
    background-color: var(--color-bg-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-lg);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.opinion-card__header {
    margin-bottom: var(--spacing-md);
}

.opinion-card__meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.opinion-card__category {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--color-primary-light);
    color: white;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
}

.opinion-card__content {
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
}

.opinion-card__footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-gray-200);
}

.opinion-card__stats {
    display: flex;
    gap: var(--spacing-md);
}

.opinion-card__stat {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-secondary);
}

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

/* ============================================
   Pagination
   ============================================ */
.pagination {
    margin-top: var(--spacing-2xl);
}

.pagination__list {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    list-style: none;
}

.pagination__link {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 2.5rem;
    height: 2.5rem;
    padding: 0 var(--spacing-md);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--border-radius-md);
    color: var(--color-text-primary);
    transition: all var(--transition-fast);
}

.pagination__link:hover {
    background-color: var(--color-gray-100);
    border-color: var(--color-gray-400);
}

.pagination__link--active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

/* ============================================
   Alerts
   ============================================ */
.alert {
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-lg);
}

.alert--success {
    background-color: #D1FAE5;
    border: 1px solid var(--color-success);
    color: #065F46;
}

.alert--error {
    background-color: #FEE2E2;
    border: 1px solid var(--color-danger);
    color: #991B1B;
}

.alert__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-sm);
}

.alert__message {
    margin: 0;
}

/* ============================================
   Page Header
   ============================================ */
.page-header {
    margin-bottom: var(--spacing-2xl);
    text-align: center;
}

.page-header__title {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
}

.page-header__description {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.page-header__actions {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
}

/* ============================================
   Filters
   ============================================ */
.filters {
    background-color: var(--color-bg-primary);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-xl);
}

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

.filters__group {
    display: flex;
    flex-direction: column;
}

.filters__label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-xs);
}

.filters__select,
.filters__input {
    padding: var(--spacing-sm);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--border-radius-md);
}

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

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .main-content {
        padding: var(--spacing-lg) 0;
    }
    
    .page-header__title {
        font-size: var(--font-size-3xl);
    }
    
    .filters__form {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}