/* ================================
   감정 시스템 전용 스타일시트
   ================================ */

/* CSS 변수 정의 */
:root {
    --emotion-primary: #dc2626;
    --emotion-success: #22c55e;
    --emotion-warning: #f59e0b;
    --emotion-info: #3b82f6;
    --emotion-danger: #ef4444;
    
    --emotion-bg-primary: #0a0a0a;
    --emotion-bg-secondary: #1a1a1a;
    --emotion-bg-tertiary: #262626;
    
    --emotion-text-primary: #ffffff;
    --emotion-text-secondary: #d1d5db;
    --emotion-text-tertiary: #9ca3af;
    
    --emotion-border: #374151;
    --emotion-border-hover: #4b5563;
    
    --emotion-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --emotion-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --emotion-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    
    --emotion-radius-sm: 0.25rem;
    --emotion-radius-md: 0.375rem;
    --emotion-radius-lg: 0.5rem;
    --emotion-radius-xl: 0.75rem;
    
    --emotion-spacing-1: 0.25rem;
    --emotion-spacing-2: 0.5rem;
    --emotion-spacing-3: 0.75rem;
    --emotion-spacing-4: 1rem;
    --emotion-spacing-6: 1.5rem;
    --emotion-spacing-8: 2rem;
}

/* Emotion counts compact display (for waves mode) */
.emotion-counts-compact {
    display: flex;
    gap: var(--emotion-spacing-3);
    align-items: center;
    justify-content: center;
    margin-top: var(--emotion-spacing-2);
    padding: var(--emotion-spacing-2);
}

.emotion-count-item {
    display: inline-flex;
    align-items: center;
    gap: var(--emotion-spacing-1);
    font-size: var(--font-size-sm);
}

.emotion-count-item .emotion-icon {
    font-size: 1.2em;
}

.emotion-count-item .count {
    font-weight: 600;
    color: var(--emotion-text-secondary);
    min-width: 1.5em;
    text-align: center;
}

/* 기본 감정 패널 스타일 */
.emotion-panel {
    background: var(--emotion-bg-secondary);
    border: 1px solid var(--emotion-border);
    border-radius: var(--emotion-radius-xl);
    padding: var(--emotion-spacing-6);
    margin-top: var(--emotion-spacing-4);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    transform: translateY(20px);
    position: relative;
    overflow: hidden;
}

/* Compact variant: single-row, fixed height, minimal chrome */
.emotion-panel.compact {
    padding: var(--emotion-spacing-2) var(--emotion-spacing-3);
    border-radius: var(--emotion-radius-lg);
    margin-top: var(--emotion-spacing-2);
    min-height: 64px;
}

.emotion-panel.compact .emotion-buttons {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--emotion-spacing-2);
    margin: 0;
}

.emotion-panel.compact .emotion-btn {
    padding: var(--emotion-spacing-2);
    min-height: 56px;
    gap: var(--emotion-spacing-1);
}

.emotion-panel.compact .emotion-label {
    font-size: 0.7rem;
}

.emotion-panel.compact .emotion-header,
.emotion-panel.compact .emotion-wave-container,
.emotion-panel.compact .emotion-footer {
    display: none !important;
}

/* Waves-only variant for list page */
.emotion-panel.waves-only {
    padding: var(--emotion-spacing-1) var(--emotion-spacing-2);
    border-radius: var(--emotion-radius-lg);
    margin-top: var(--emotion-spacing-1);
}

.emotion-panel.waves-only .emotion-wave-container {
    height: 40px;
    margin: 0;
}

.emotion-panel.waves-only .emotion-buttons,
.emotion-panel.waves-only .emotion-footer,
.emotion-panel.waves-only .emotion-header {
    display: none !important;
}

.emotion-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, 
        var(--emotion-primary) 0%, 
        var(--emotion-success) 25%, 
        var(--emotion-warning) 50%, 
        var(--emotion-info) 75%, 
        var(--emotion-primary) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

@media (hover: hover) {
    .emotion-panel:hover {
        border-color: var(--emotion-border-hover);
        box-shadow: var(--emotion-shadow-lg);
    }
    .emotion-panel:hover::before {
        opacity: 0.7;
    }
}

.emotion-panel-loaded {
    opacity: 1;
    transform: translateY(0);
}

/* Loading state: skeleton placeholders to prevent flicker */
.emotion-panel.loading .emotion-label,
.emotion-panel.loading .emotion-count,
.emotion-panel.loading .emotion-stats,
.emotion-panel.loading .wave-info {
    visibility: hidden;
}

.emotion-panel.loading .emotion-btn {
    position: relative;
    pointer-events: none;
}

.emotion-panel.loading .emotion-btn::after,
.emotion-panel.loading.compact .emotion-buttons::after,
.emotion-panel.loading .emotion-wave-container::after,
.emotion-panel.loading .emotion-footer::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(255,255,255,0.04) 25%, rgba(255,255,255,0.08) 37%, rgba(255,255,255,0.04) 63%);
    background-size: 400% 100%;
    animation: emotion-skeleton-shimmer 1.2s ease-in-out infinite;
    border-radius: inherit;
}

@keyframes emotion-skeleton-shimmer {
    0% { background-position: 100% 0; }
    100% { background-position: 0 0; }
}

/* 감정 패널 헤더 */
.emotion-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--emotion-spacing-6);
    gap: var(--emotion-spacing-4);
}

.emotion-title h4 {
    color: var(--emotion-text-primary);
    font-size: 1rem;
    font-weight: 600;
    margin: 0 0 var(--emotion-spacing-1) 0;
    line-height: 1.4;
}

.emotion-subtitle {
    color: var(--emotion-text-tertiary);
    font-size: 0.875rem;
    line-height: 1.3;
}

.emotion-status {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--emotion-spacing-2);
}

.active-users {
    display: none;
    align-items: center;
    gap: var(--emotion-spacing-2);
    color: var(--emotion-text-secondary);
    font-size: 0.75rem;
    background: var(--emotion-bg-tertiary);
    padding: var(--emotion-spacing-2) var(--emotion-spacing-3);
    border-radius: var(--emotion-radius-md);
    border: 1px solid var(--emotion-border);
    transition: all 0.2s ease;
}

.active-users.users-update {
    transform: scale(1.05);
    background: var(--emotion-primary);
    color: white;
}

.connection-status {
    display: flex;
    align-items: center;
    gap: var(--emotion-spacing-2);
    font-size: 0.75rem;
    padding: var(--emotion-spacing-1) var(--emotion-spacing-2);
    border-radius: var(--emotion-radius-sm);
}

.connection-status.connected {
    color: var(--emotion-success);
}

.connection-status.disconnected {
    color: var(--emotion-danger);
}

.connection-indicator {
    font-size: 0.5rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* 감정 버튼 그리드 */
.emotion-buttons {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--emotion-spacing-3);
    margin-bottom: var(--emotion-spacing-6);
}

/* 감정 버튼 스타일 */
.emotion-btn {
    background: var(--emotion-bg-primary);
    border: 1px solid var(--emotion-border);
    border-radius: var(--emotion-radius-lg);
    padding: var(--emotion-spacing-4);
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: var(--emotion-spacing-2);
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
    position: relative;
    min-height: 90px;
    justify-content: center;
    overflow: hidden;
    user-select: none;
}

@media (hover: hover) {
    .emotion-btn:hover {
        border-color: var(--emotion-color, var(--emotion-primary));
        background: var(--emotion-bg-tertiary);
        transform: translateY(-1px);
    }
}

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

/* Disabled state */
.emotion-btn[disabled] {
    opacity: 0.6;
    cursor: not-allowed;
}

.emotion-btn.selected {
    border-color: var(--emotion-color, var(--emotion-primary));
    background: var(--emotion-bg-tertiary);
    color: var(--emotion-text-primary);
}

.emotion-btn.selected .emotion-label,
.emotion-btn.selected .emotion-count {
    color: var(--emotion-text-primary);
}

.emotion-btn.has-reactions {
    border-color: var(--emotion-color, var(--emotion-primary));
}

.emotion-btn.has-reactions .emotion-count {
    background: var(--emotion-color, var(--emotion-primary));
    color: white;
}

.emotion-btn.optimistic-update {
    animation: optimisticPulse 1s ease;
}

@keyframes optimisticPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* 감정 버튼 내부 요소 */
.emotion-icon-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.emotion-icon {
    font-size: 1.5rem;
    line-height: 1;
    z-index: 2;
}

.emotion-ripple {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: var(--emotion-color, var(--emotion-primary));
    transform: translate(-50%, -50%);
    opacity: 0;
    z-index: 1;
}

.emotion-ripple-active {
    animation: ripple 0.6s ease-out;
}

@keyframes ripple {
    0% {
        width: 0;
        height: 0;
        opacity: 0.7;
    }
    100% {
        width: 60px;
        height: 60px;
        opacity: 0;
    }
}

.emotion-label {
    font-size: 0.75rem;
    color: var(--emotion-text-secondary);
    font-weight: 500;
    text-align: center;
    line-height: 1.2;
}

.emotion-count {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--emotion-text-primary);
    background: var(--emotion-bg-tertiary);
    padding: var(--emotion-spacing-1) var(--emotion-spacing-2);
    border-radius: var(--emotion-radius-sm);
    min-width: 24px;
    text-align: center;
    line-height: 1.2;
    transition: all 0.2s ease;
    font-variant-numeric: tabular-nums;
}

.emotion-count-increase {
    animation: countIncrease 0.25s ease;
}

@keyframes countIncrease {
    0% { opacity: 0.6; }
    50% { opacity: 1; color: var(--emotion-primary); }
    100% { opacity: 1; }
}

/* Simplify: hide progress bar to reduce visual noise */
.emotion-progress { display: none; }
.emotion-progress-bar { display: none; }

/* 파동 시각화 컨테이너 */
.emotion-wave-container {
    position: relative;
    height: 100px;
    background: var(--emotion-bg-primary);
    border: 1px solid var(--emotion-border);
    border-radius: var(--emotion-radius-lg);
    overflow: hidden;
    margin-bottom: var(--emotion-spacing-4);
}

.emotion-wave-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.wave-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    background: linear-gradient(45deg, transparent 30%, rgba(0,0,0,0.1) 70%);
}

.wave-info {
    text-align: center;
    color: var(--emotion-text-tertiary);
}

.wave-title {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: var(--emotion-spacing-1);
}

.wave-description {
    display: block;
    font-size: 0.625rem;
    opacity: 0.7;
}

/* 감정 패널 푸터 */
.emotion-footer {
    border-top: 1px solid var(--emotion-border);
    padding-top: var(--emotion-spacing-4);
}

.emotion-stats {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--emotion-text-tertiary);
}

.total-reactions,
.last-updated {
    display: flex;
    align-items: center;
    gap: var(--emotion-spacing-2);
}

.total-reactions i,
.last-updated i {
    font-size: 0.625rem;
    opacity: 0.7;
}

/* WebSocket 연결 상태 표시 */
.ws-connection-indicator {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: var(--emotion-spacing-2) var(--emotion-spacing-3);
    border-radius: var(--emotion-radius-md);
    font-size: 0.75rem;
    font-weight: 500;
    z-index: 10000;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--emotion-spacing-2);
    backdrop-filter: blur(10px);
}

.ws-connection-indicator.connected {
    background: rgba(34, 197, 94, 0.9);
    color: white;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.ws-connection-indicator.disconnected {
    background: rgba(239, 68, 68, 0.9);
    color: white;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.indicator-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
    animation: pulse 2s infinite;
}

/* 알림 및 피드백 */
.emotion-notification {
    position: fixed;
    top: 80px;
    right: 20px;
    padding: var(--emotion-spacing-3) var(--emotion-spacing-4);
    border-radius: var(--emotion-radius-lg);
    font-size: 0.875rem;
    font-weight: 500;
    z-index: 9999;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    backdrop-filter: blur(10px);
    max-width: 300px;
    word-wrap: break-word;
}

.emotion-notification.show {
    transform: translateX(0);
}

.emotion-notification.info {
    background: rgba(59, 130, 246, 0.9);
    color: white;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.emotion-notification.warning {
    background: rgba(245, 158, 11, 0.9);
    color: white;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.emotion-notification.error {
    background: rgba(239, 68, 68, 0.9);
    color: white;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.emotion-feedback {
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: var(--emotion-primary);
    color: white;
    padding: var(--emotion-spacing-2) var(--emotion-spacing-3);
    border-radius: var(--emotion-radius-md);
    font-size: 0.75rem;
    font-weight: 500;
    opacity: 0;
    transition: all 0.3s ease;
    white-space: nowrap;
    z-index: 100;
}

.emotion-feedback.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.emotion-feedback::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--emotion-primary);
}

.emotion-update-notification {
    position: absolute;
    top: -30px;
    right: 0;
    background: var(--emotion-bg-tertiary);
    color: var(--emotion-text-secondary);
    padding: var(--emotion-spacing-1) var(--emotion-spacing-2);
    border-radius: var(--emotion-radius-sm);
    font-size: 0.625rem;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
    border: 1px solid var(--emotion-border);
}

.emotion-update-notification.show {
    opacity: 1;
    transform: translateY(0);
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .emotion-panel {
        padding: var(--emotion-spacing-4);
        margin-top: var(--emotion-spacing-3);
    }
    
    .emotion-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--emotion-spacing-3);
    }
    
    .emotion-status {
        align-items: flex-start;
        flex-direction: row;
        gap: var(--emotion-spacing-3);
    }
    
    .emotion-buttons {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--emotion-spacing-2);
    }
    
    .emotion-btn {
        padding: var(--emotion-spacing-3);
        min-height: 70px;
    }
    
    .emotion-label {
        display: none;
    }
    
    .emotion-icon {
        font-size: 1.25rem;
    }
    
    .emotion-wave-container {
        height: 80px;
    }
    
    .emotion-stats {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--emotion-spacing-2);
    }
    
    .ws-connection-indicator {
        top: 10px;
        right: 10px;
        padding: var(--emotion-spacing-1) var(--emotion-spacing-2);
        font-size: 0.625rem;
    }
    
    .emotion-notification {
        right: 10px;
        top: 60px;
        max-width: calc(100vw - 20px);
        font-size: 0.75rem;
    }
}

@media (max-width: 480px) {
    .emotion-buttons {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .emotion-btn {
        min-height: 80px;
    }
    
    .emotion-label {
        display: block;
        font-size: 0.625rem;
    }
}

/* 다크모드 대응 */
@media (prefers-color-scheme: dark) {
    :root {
        --emotion-bg-primary: #0a0a0a;
        --emotion-bg-secondary: #1a1a1a;
        --emotion-bg-tertiary: #262626;
    }
}

/* 고대비 모드 대응 */
@media (prefers-contrast: high) {
    .emotion-btn {
        border-width: 3px;
    }
    
    .emotion-btn:hover,
    .emotion-btn.selected {
        border-width: 4px;
    }
    
    .emotion-wave-container {
        border-width: 2px;
    }
}

/* 애니메이션 감소 설정 */
@media (prefers-reduced-motion: reduce) {
    .emotion-panel,
    .emotion-btn,
    .emotion-count,
    .ws-connection-indicator,
    .emotion-notification,
    .emotion-feedback {
        transition: none;
    }
    
    .emotion-count-increase,
    .emotion-ripple-active,
    .optimisticPulse {
        animation: none;
    }
    
    .connection-indicator {
        animation: none;
    }
}

/* 인쇄 스타일 */
@media print {
    .emotion-panel {
        background: white;
        color: black;
        border: 2px solid black;
    }
    
    .emotion-wave-container,
    .ws-connection-indicator,
    .emotion-notification {
        display: none;
    }
}