/* PLANBEAR 글라스모피즘 스타일 */
:root {
    /* PLANBEAR 색상 팔레트 */
    --pb-white: #ffffff;
    --pb-sky-light: #e6f4ff;
    --pb-sky: #87ceeb;
    --pb-blue-light: #4a90e2;
    --pb-blue: #2196f3;
    --pb-blue-dark: #1976d2;
    --pb-navy: #0d47a1;
    
    /* 글라스모피즘 색상 */
    --glass-bg: rgba(255, 255, 255, 0.25);
    --glass-bg-solid: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(255, 255, 255, 0.18);
    --glass-shadow: rgba(0, 0, 0, 0.1);
    
    /* 폰트 크기 */
    --font-xs: 8pt;
    --font-sm: 10pt;
    --font-md: 12pt;
    --font-lg: 14pt;
}

/* 기본 스타일 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, var(--pb-sky-light) 0%, var(--pb-white) 50%, var(--pb-sky) 100%);
    min-height: 100vh;
    color: #333;
    position: relative;
    overflow-x: hidden;
}

/* 배경 패턴 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, var(--pb-sky-light) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, var(--pb-blue-light) 0%, transparent 50%);
    opacity: 0.3;
    z-index: -1;
}

/* 컨테이너 */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* 글라스모피즘 카드 */
.glass-card {
    background: var(--glass-bg-solid);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px var(--glass-shadow);
    padding: 30px;
    transition: all 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px var(--glass-shadow);
}

/* 헤더 스타일 */
.glass-header {
    background: var(--glass-bg-solid);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    box-shadow: 0 4px 20px var(--glass-shadow);
    padding: 20px 30px;
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* PLANBEAR 로고 */
.brand-logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.brand-logo img {
    height: 40px;
    width: auto;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.brand-logo h1 {
    color: var(--pb-blue-dark);
    font-size: 1.8rem;
    font-weight: 600;
    letter-spacing: -0.5px;
}

/* 버튼 스타일 */
.glass-btn {
    background: linear-gradient(135deg, var(--pb-blue-light), var(--pb-blue));
    color: white;
    border: none;
    border-radius: 12px;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.3);
    backdrop-filter: blur(5px);
}

.glass-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(33, 150, 243, 0.4);
    background: linear-gradient(135deg, var(--pb-blue), var(--pb-blue-dark));
}

.glass-btn.secondary {
    background: var(--glass-bg-solid);
    color: var(--pb-blue-dark);
    box-shadow: 0 4px 15px var(--glass-shadow);
}

.glass-btn.secondary:hover {
    background: white;
}

/* 메시지 스타일 */
.message {
    background: var(--glass-bg-solid);
    backdrop-filter: blur(5px);
    border-radius: 15px;
    padding: 15px 20px;
    margin-bottom: 15px;
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    animation: slideIn 0.3s ease;
}

.message::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    transition: all 0.3s ease;
}

.message.operator {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(230, 244, 255, 0.95));
    cursor: pointer;
}

.message.operator::before {
    background: linear-gradient(180deg, var(--pb-blue-light), var(--pb-blue));
}

.message.operator:hover {
    background-color: #e8f0fe;
    transform: translateX(5px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.message.user {
    background: linear-gradient(135deg, rgba(243, 229, 245, 0.95), rgba(255, 255, 255, 0.95));
    margin-left: 40px;
    cursor: pointer;
}

.message.user::before {
    background: linear-gradient(180deg, var(--pb-sky), var(--pb-blue-light));
}

.message.user:hover {
    background-color: #f8f5ff;
}

.message.user.my-message {
    background: linear-gradient(135deg, rgba(220, 237, 255, 0.95), rgba(255, 255, 255, 0.95));
    border-left: 4px solid #4a90e2;
}

.message.user.my-message:hover {
    background-color: #f0f7ff;
}

/* 긴급 메시지 스타일 */
.message.urgent {
    background: #fffacd;
    border-left: 4px solid #ff0000;
    animation: pulse 2s infinite;
}

.message.urgent::before {
    background: linear-gradient(180deg, #ff0000, #cc0000);
}

.message.urgent .message-content {
    color: #ff0000;
    font-weight: bold;
}

.message.urgent .message-header {
    color: #cc0000;
}

/* 읽음 확인 스타일 */
.message.operator.read {
    background: linear-gradient(135deg, rgba(232, 245, 233, 0.95), rgba(255, 255, 255, 0.95));
}

.message.operator.read::before {
    background: linear-gradient(180deg, #4caf50, #45a049);
}

.message.operator.read:hover {
    background-color: #dcedc8;
}

.message.user.read {
    background: linear-gradient(135deg, rgba(232, 245, 233, 0.95), rgba(243, 229, 245, 0.95));
}

.message.user.read::before {
    background: linear-gradient(180deg, #4caf50, #45a049);
}

.message.user.my-message.read {
    background: linear-gradient(135deg, rgba(232, 245, 233, 0.95), rgba(220, 237, 255, 0.95));
}

/* 메시지 헤더와 컨텐츠 */
.message-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    font-size: 13px;
    color: #666;
}

.message-header strong {
    color: var(--pb-blue-dark);
}

.message-content {
    font-size: var(--message-font-size, 11pt);
    line-height: 1.6;
    color: #333;
}

/* 읽음 표시 */
.read-list {
    margin-top: 8px;
    font-size: 12px;
}

.read-info {
    display: inline-block;
    padding: 3px 10px;
    background: rgba(33, 150, 243, 0.1);
    color: var(--pb-blue-dark);
    border-radius: 12px;
    margin-right: 5px;
    font-weight: 500;
    animation: fadeInScale 0.3s ease;
}

/* 입력 필드 */
.glass-input {
    background: var(--glass-bg-solid);
    border: 2px solid #e1e8ed;  /* 더 뚜렷한 테두리 */
    border-radius: 12px;
    padding: 12px 20px;
    font-size: 14px;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
    width: 100%;
}

.glass-input:focus {
    outline: none;
    border-color: var(--pb-blue-light);
    box-shadow: 0 0 0 4px rgba(33, 150, 243, 0.1);
    background: white;
}

.glass-input:hover {
    border-color: #c8d6e5;  /* 호버 시 약간 진한 테두리 */
}

/* 셀렉트 박스 */
.glass-select {
    background: var(--glass-bg-solid);
    border: 2px solid #e1e8ed;  /* 더 뚜렷한 테두리 */
    border-radius: 12px;
    padding: 12px 20px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
}

.glass-select:hover {
    border-color: #c8d6e5;
}

.glass-select:focus {
    outline: none;
    border-color: var(--pb-blue-light);
    box-shadow: 0 0 0 4px rgba(33, 150, 243, 0.1);
    background: white;
}

/* 텍스트영역 */
.glass-textarea {
    background: var(--glass-bg-solid);
    border: 2px solid #e1e8ed;  /* 더 뚜렷한 테두리 */
    border-radius: 12px;
    padding: 12px 20px;
    font-size: 14px;
    resize: vertical;
    min-height: 100px;
    transition: all 0.3s ease;
    width: 100%;
}

.glass-textarea:hover {
    border-color: #c8d6e5;
}

.glass-textarea:focus {
    outline: none;
    border-color: var(--pb-blue-light);
    box-shadow: 0 0 0 4px rgba(33, 150, 243, 0.1);
    background: white;
}

/* 폰트 컨트롤 */
.font-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--glass-bg-solid);
    padding: 8px 15px;
    border-radius: 12px;
    border: 1px solid var(--glass-border);
}

.font-btn {
    width: 32px;
    height: 32px;
    border: none;
    background: var(--pb-blue-light);
    color: white;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.font-btn:hover {
    background: var(--pb-blue);
    transform: scale(1.1);
}

.font-size-display {
    min-width: 50px;
    text-align: center;
    font-weight: 600;
    color: var(--pb-blue-dark);
}

/* 연결 상태 */
.connection-status {
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    background: var(--glass-bg-solid);
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.connection-status.connected {
    background: rgba(40, 167, 69, 0.9);
    color: white;
    border-color: rgba(40, 167, 69, 0.5);
}

.connection-status.disconnected {
    background: rgba(220, 53, 69, 0.9);
    color: white;
    border-color: rgba(220, 53, 69, 0.5);
}

/* 메시지 컨테이너 */
.message-container {
    flex: 1;
    overflow-y: auto;
    padding-right: 10px;
    scrollbar-width: thin;
    scrollbar-color: var(--pb-blue-light) transparent;
}

.message-container::-webkit-scrollbar {
    width: 8px;
}

.message-container::-webkit-scrollbar-track {
    background: transparent;
}

.message-container::-webkit-scrollbar-thumb {
    background: var(--pb-blue-light);
    border-radius: 4px;
}

/* 에러 메시지 */
.error-message {
    background: linear-gradient(135deg, rgba(255, 235, 238, 0.95), rgba(255, 245, 245, 0.95));
    border: 1px solid rgba(220, 53, 69, 0.3);
    color: #721c24;
    padding: 14px 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    text-align: center;
    font-size: 14px;
}

/* 환영 메시지 */
.welcome-message {
    text-align: center;
    padding: 60px 20px;
    color: #666;
}

.welcome-message h3 {
    font-size: 1.8rem;
    color: var(--pb-blue-dark);
    margin-bottom: 15px;
}

.welcome-message p {
    font-size: 1.1rem;
    color: #777;
    margin: 5px 0;
}

/* 운영자 콘솔 전용 */
.operator-console {
    min-height: 100vh;
    padding: 0;
    display: flex;
    flex-direction: column;
}

.operator-console .glass-header {
    margin: 20px;
    border-radius: 15px;
}

.operator-console-main {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    padding: 0 20px 20px;
    height: calc(100vh - 120px);
}

.console-section {
    background: var(--glass-bg-solid);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px var(--glass-shadow);
    padding: 25px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.console-section h2 {
    color: var(--pb-blue-dark);
    margin-bottom: 20px;
    font-size: 1.4rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* 대시보드 */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 25px;
}

.room-item {
    background: var(--glass-bg-solid);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 20px;
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.room-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--pb-sky), var(--pb-blue-light), var(--pb-blue));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.room-item:hover::before {
    transform: scaleX(1);
}

/* 로그인 폼 */
.login-glass {
    max-width: 420px;
    margin: 100px auto;
    background: var(--glass-bg-solid);
    backdrop-filter: blur(15px);
    border-radius: 25px;
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px var(--glass-shadow);
    padding: 40px;
    text-align: center;
}

.login-glass .brand-logo {
    justify-content: center;
    margin-bottom: 30px;
}

/* 폼 그룹 */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--pb-blue-dark);
    font-size: 14px;
}

/* 삭제 버튼 */
.delete-btn {
    margin-left: 10px;
    padding: 4px 10px;
    background: rgba(220, 53, 69, 0.9);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.2s ease;
}

.delete-btn:hover {
    background: #dc3545;
    transform: translateY(-1px);
}

/* 기타 유틸리티 */
.no-messages {
    text-align: center;
    color: #999;
    font-style: italic;
    margin-top: 50px;
}

/* 애니메이션 */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% { 
        opacity: 1;
        box-shadow: 0 4px 20px rgba(255, 0, 0, 0.3);
    }
    50% { 
        opacity: 0.85;
        box-shadow: 0 4px 30px rgba(255, 0, 0, 0.5);
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* 반응형 디자인 */
@media (max-width: 1200px) {
    .operator-console-main {
        grid-template-columns: 1fr;
        height: auto;
    }
    
    .console-section {
        min-height: 400px;
    }
}

@media (max-width: 768px) {
    .glass-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .brand-logo {
        flex-direction: column;
    }
    
    .font-controls {
        padding: 5px 10px;
    }
    
    .container {
        padding: 10px;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .operator-main {
        grid-template-columns: 1fr;
    }
    
    .room-header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .message.user {
        margin-left: 20px;
    }
}