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

:root {
    --primary-color: #4A90E2;
    --primary-dark: #357ABD;
    --primary-gradient-start: #4A90E2;
    --primary-gradient-end: #8B5CF6;
    --secondary-color: #50C878;
    --danger-color: #E74C3C;
    --danger-gradient-start: #E74C3C;
    --danger-gradient-end: #C0392B;
    --warning-color: #F39C12;
    --gold-color: #FFD700;
    --gold-dark: #FFA500;
    --background: #F0F4F8;
    --surface: #FFFFFF;
    --text-primary: #2C3E50;
    --text-secondary: #7F8C8D;
    --border-color: #E1E8ED;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 6px 20px rgba(0, 0, 0, 0.15);
    --shadow-large: 0 8px 24px rgba(0, 0, 0, 0.12);
    --radius: 16px;
    --radius-small: 12px;
    --radius-large: 24px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-color: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 16px;
}

.app-container {
    max-width: 480px;
    margin: 0 auto;
    background-color: var(--surface);
    min-height: 100vh;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.05);
}

/* 헤더 */
.header {
    background: linear-gradient(135deg, var(--primary-gradient-start) 0%, var(--primary-gradient-end) 100%);
    color: white;
    padding: 24px 20px;
    text-align: center;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.header h1 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 4px;
    position: relative;
    z-index: 1;
}

.subtitle {
    font-size: 14px;
    opacity: 0.9;
    font-weight: 400;
    position: relative;
    z-index: 1;
}

/* 히어로 섹션 */
.hero-section {
    background: linear-gradient(135deg, #2563EB 0%, #7C3AED 50%, #EC4899 100%);
    padding: 50px 20px 80px;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
    margin-bottom: -40px;
    border-radius: 0 0 40px 40px;
}

.hero-background-shapes {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 200px;
    height: 200px;
    top: -50px;
    right: -50px;
    animation-delay: 0s;
}

.shape-2 {
    width: 150px;
    height: 150px;
    bottom: -30px;
    left: -30px;
    animation-delay: 2s;
}

.shape-3 {
    width: 100px;
    height: 100px;
    top: 50%;
    left: 20%;
    animation-delay: 4s;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-illustration {
    margin-bottom: 24px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.medical-icon-wrapper {
    width: 120px;
    height: 120px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    border: 3px solid rgba(255, 255, 255, 0.3);
    animation: pulse-glow 2s ease-in-out infinite;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

@keyframes pulse-glow {
    0%, 100% { 
        transform: scale(1);
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    }
    50% { 
        transform: scale(1.05);
        box-shadow: 0 12px 40px rgba(255, 255, 255, 0.3);
    }
}

.medical-icon {
    width: 80px;
    height: 80px;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

.hero-title {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 12px;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
    letter-spacing: -0.5px;
}

.hero-subtitle {
    font-size: 15px;
    opacity: 0.95;
    font-weight: 400;
    line-height: 1.6;
    margin-bottom: 20px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    padding: 10px 20px;
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    margin-top: 16px;
}

.badge-icon {
    font-size: 20px;
}

.badge-text {
    font-size: 14px;
    font-weight: 600;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

/* 메인 액션 카드 */
.main-action-card {
    background: var(--surface);
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-large);
    margin: 0 20px 20px;
    padding: 24px;
    position: relative;
    z-index: 2;
    overflow: hidden;
}

.card-illustration {
    position: absolute;
    top: -30px;
    right: -30px;
    width: 150px;
    height: 150px;
    opacity: 0.1;
    pointer-events: none;
}

.illustration-circle {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-gradient-start) 0%, var(--primary-gradient-end) 100%);
}

.circle-1 {
    width: 100px;
    height: 100px;
    top: 0;
    right: 0;
}

.circle-2 {
    width: 60px;
    height: 60px;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
}

.illustration-icon {
    position: absolute;
    top: 50%;
    right: 50%;
    transform: translate(50%, -50%);
    font-size: 40px;
    z-index: 1;
}

.card-header-modern {
    margin-bottom: 20px;
}

.card-header-modern h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.card-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
}

.card-body-modern {
    margin-top: 16px;
}

/* 그라데이션 버튼 */
.gradient-btn {
    width: 100%;
    padding: 18px 24px;
    border: none;
    border-radius: 20px;
    font-size: 16px;
    font-weight: 700;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 16px;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.gradient-btn .btn-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.btn-arrow {
    margin-left: auto;
    font-size: 20px;
    opacity: 0.8;
}

.gradient-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.gradient-btn:hover::before,
.gradient-btn:active::before {
    left: 100%;
}

.primary-gradient {
    background: linear-gradient(135deg, var(--primary-gradient-start) 0%, var(--primary-gradient-end) 100%);
}

.danger-gradient {
    background: linear-gradient(135deg, var(--danger-gradient-start) 0%, var(--danger-gradient-end) 100%);
}

.secondary-gradient {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.gradient-btn:active {
    transform: scale(0.98);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.btn-icon-large {
    font-size: 32px;
    flex-shrink: 0;
}

.btn-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
}

.btn-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 4px;
}

.btn-desc {
    font-size: 13px;
    opacity: 0.9;
    font-weight: 400;
}

/* 응급 상황 카드 */
.emergency-quick-card {
    background: linear-gradient(135deg, #fff5f5 0%, #ffe5e5 100%);
    border: 2px solid var(--danger-color);
    border-radius: 30px;
    padding: 24px;
    margin: 0 20px 20px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.emergency-illustration {
    position: absolute;
    top: -20px;
    right: -20px;
    width: 120px;
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.pulse-ring {
    position: absolute;
    width: 100px;
    height: 100px;
    border: 3px solid var(--danger-color);
    border-radius: 50%;
    animation: pulse-ring 2s ease-out infinite;
    opacity: 0.3;
}

@keyframes pulse-ring {
    0% {
        transform: scale(0.8);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.2;
    }
    100% {
        transform: scale(1.5);
        opacity: 0;
    }
}

.emergency-icon-large {
    position: relative;
    z-index: 1;
    font-size: 48px;
    animation: shake 0.5s ease-in-out infinite;
}

@keyframes shake {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(-5deg); }
    75% { transform: rotate(5deg); }
}

.emergency-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.emergency-icon {
    font-size: 32px;
}

.emergency-header h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--danger-color);
}

.emergency-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
}

.emergency-buttons {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* 기능 카드 */
.feature-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    padding: 0 20px 20px;
}

.feature-card {
    background: var(--surface);
    border-radius: 24px;
    padding: 24px 20px;
    border: 2px solid var(--border-color);
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.feature-card-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.05) 0%, rgba(139, 92, 246, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover .feature-card-bg,
.feature-card:active .feature-card-bg {
    opacity: 1;
}

.feature-icon-wrapper {
    width: 70px;
    height: 70px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, var(--primary-gradient-start) 0%, var(--primary-gradient-end) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
    transition: all 0.3s ease;
}

.feature-card:hover .feature-icon-wrapper,
.feature-card:active .feature-icon-wrapper {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 6px 20px rgba(74, 144, 226, 0.4);
}

.feature-card:active {
    transform: scale(0.98);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 36px;
    color: white;
}

.feature-card h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
}

.feature-card p {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.5;
    position: relative;
    z-index: 1;
}

.feature-arrow {
    position: absolute;
    bottom: 16px;
    right: 16px;
    font-size: 20px;
    color: var(--primary-color);
    opacity: 0;
    transition: all 0.3s ease;
    transform: translateX(-10px);
}

.feature-card:hover .feature-arrow,
.feature-card:active .feature-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* 검색 카드 */
.search-card {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 20px;
    margin: 0 20px 20px;
    box-shadow: var(--shadow);
}

.search-card h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.search-box-modern {
    display: flex;
    gap: 8px;
}

#search-input {
    flex: 1;
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-small);
    font-size: 16px;
    outline: none;
    transition: all 0.3s ease;
}

#search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.search-btn-modern {
    padding: 14px 20px;
    background: linear-gradient(135deg, var(--primary-gradient-start) 0%, var(--primary-gradient-end) 100%);
    color: white;
    border: none;
    border-radius: var(--radius-small);
    font-size: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(74, 144, 226, 0.3);
}

.search-btn-modern:active {
    transform: scale(0.95);
}

/* 검색 결과 */
.search-results {
    margin-top: 20px;
    max-height: 500px;
    overflow-y: auto;
}

.search-results-header {
    margin-bottom: 16px;
}

.search-results-header h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
}

.search-results-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.search-result-item {
    background: var(--surface);
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.search-result-item:hover,
.search-result-item:active {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-hover);
    transform: translateX(4px);
}

.result-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.result-content {
    flex: 1;
    min-width: 0;
}

.result-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.result-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    line-height: 1.4;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.result-type {
    display: inline-block;
    padding: 4px 8px;
    background: #f0f7ff;
    color: var(--primary-color);
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
}

.result-arrow {
    font-size: 20px;
    color: var(--text-secondary);
    flex-shrink: 0;
}

.search-no-results {
    text-align: center;
    padding: 40px 20px;
}

.search-no-results p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.search-hint {
    font-size: 12px;
    color: var(--text-secondary);
    opacity: 0.7;
}

/* 안내 카드 */
.notice-card-modern {
    background: linear-gradient(135deg, #fff9e6 0%, #ffeaa7 100%);
    border: 2px solid var(--warning-color);
    border-radius: var(--radius);
    padding: 20px;
    margin: 0 20px 20px;
    box-shadow: var(--shadow);
}

.notice-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.notice-icon {
    font-size: 24px;
}

.notice-header h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--warning-color);
}

.notice-list-modern {
    list-style: none;
    padding: 0;
}

.notice-list-modern li {
    padding: 10px 0;
    font-size: 13px;
    color: var(--text-primary);
    line-height: 1.6;
    border-bottom: 1px solid rgba(243, 156, 18, 0.2);
}

.notice-list-modern li:last-child {
    border-bottom: none;
}

/* 네비게이션 */
.page-nav,
.chatbot-nav {
    display: flex;
    background: var(--surface);
    border-bottom: 1px solid var(--border-color);
    padding: 8px;
    gap: 4px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.page-nav-btn,
.chatbot-nav-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 12px 8px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-small);
    transition: all 0.2s ease;
}

.page-nav-btn .icon,
.chatbot-nav-btn .icon {
    font-size: 20px;
}

.page-nav-btn.active,
.chatbot-nav-btn.active {
    background: var(--primary-color);
    color: white;
}

.page-nav-btn:active,
.chatbot-nav-btn:active {
    transform: scale(0.95);
}

/* 페이지 컨텐츠 */
.content {
    padding: 0;
    padding-bottom: 40px;
    background: var(--background);
}

.page {
    display: none;
}

.page.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

/* 카드 */
.card {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 20px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:active {
    transform: scale(0.98);
}

.card-header {
    padding: 20px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-bottom: 1px solid var(--border-color);
}

.card-header h2 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.card-body {
    padding: 20px;
}

/* 기존 액션 버튼도 그라데이션 스타일 적용 */
.action-btn.primary {
    background: linear-gradient(135deg, var(--primary-gradient-start) 0%, var(--primary-gradient-end) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

/* 응급 카드 */
.emergency-card {
    border: 2px solid var(--danger-color);
    background: linear-gradient(135deg, #fff5f5 0%, #ffe5e5 100%);
}

.emergency-card .card-header {
    background: linear-gradient(135deg, var(--danger-color) 0%, #c0392b 100%);
    color: white;
}

.emergency-card .card-header h2 {
    color: white;
}

.emergency-text {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    text-align: center;
}

/* 버튼 */
.action-btn {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    border: none;
    background: var(--surface);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: left;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    margin-bottom: 12px;
}

.action-btn:last-child {
    margin-bottom: 0;
}

.action-btn:active {
    transform: scale(0.98);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.action-btn.primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

.action-btn .btn-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.action-btn .btn-content h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.action-btn.primary .btn-content h3 {
    color: white;
}

.action-btn .btn-content p {
    font-size: 13px;
    color: var(--text-secondary);
}

.action-btn.primary .btn-content p {
    color: rgba(255, 255, 255, 0.9);
}

.emergency-btn {
    display: block;
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--danger-gradient-start) 0%, var(--danger-gradient-end) 100%);
    color: white;
    text-align: center;
    text-decoration: none;
    border-radius: var(--radius);
    font-weight: 700;
    font-size: 16px;
    margin-bottom: 12px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px rgba(231, 76, 60, 0.3);
    position: relative;
    overflow: hidden;
}

.emergency-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.emergency-btn:hover::before,
.emergency-btn:active::before {
    left: 100%;
}

.emergency-btn:active {
    transform: scale(0.98);
    box-shadow: 0 2px 8px rgba(231, 76, 60, 0.3);
}

.emergency-btn.secondary {
    background: linear-gradient(135deg, var(--primary-gradient-start) 0%, var(--primary-gradient-end) 100%);
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
}

/* 검색 박스 */
.search-box {
    display: flex;
    gap: 8px;
}

#search-input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 16px;
    outline: none;
    transition: border-color 0.2s ease;
}

#search-input:focus {
    border-color: var(--primary-color);
}

.search-btn {
    padding: 12px 20px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 20px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.search-btn:active {
    transform: scale(0.95);
}

/* 물질 그리드 */
.substance-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.substance-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px 12px;
    border: 2px solid var(--border-color);
    background: var(--surface);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
}

.substance-btn:active {
    transform: scale(0.95);
    border-color: var(--primary-color);
    background: #f0f7ff;
}

.substance-icon {
    font-size: 32px;
}

.substance-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

/* 챗봇 */
.chatbot-container {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 60px);
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
}

.chatbot-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    background: var(--surface);
    border-bottom: 1px solid var(--border-color);
}

.back-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    font-size: 24px;
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
}

.back-btn:active {
    background: var(--border-color);
}

.chatbot-header h2 {
    font-size: 18px;
    font-weight: 700;
}

.chatbot-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
    position: relative;
}

.chatbot-messages::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(74, 144, 226, 0.2), transparent);
}

.message {
    margin-bottom: 16px;
    animation: slideIn 0.3s ease;
}

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

.bot-message .message-content {
    background: var(--surface);
    padding: 16px;
    border-radius: 20px 20px 20px 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    max-width: 85%;
    border-left: 4px solid var(--primary-color);
    position: relative;
}

.bot-message .message-content::before {
    content: '';
    position: absolute;
    left: -8px;
    top: 12px;
    width: 0;
    height: 0;
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
    border-right: 8px solid var(--surface);
}

.user-message {
    display: flex;
    justify-content: flex-end;
}

.user-message .message-content {
    background: linear-gradient(135deg, var(--primary-gradient-start) 0%, var(--primary-gradient-end) 100%);
    color: white;
    padding: 16px;
    border-radius: 20px 20px 4px 20px;
    max-width: 85%;
    box-shadow: 0 4px 12px rgba(74, 144, 226, 0.3);
    position: relative;
}

.user-message .message-content::after {
    content: '';
    position: absolute;
    right: -8px;
    top: 12px;
    width: 0;
    height: 0;
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
    border-left: 8px solid var(--primary-gradient-end);
}

.message-content p {
    margin-bottom: 8px;
    line-height: 1.6;
}

.message-content p:last-child {
    margin-bottom: 0;
}

.message-notice {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

.chatbot-actions {
    padding: 12px 16px;
    background: var(--surface);
    border-top: 1px solid var(--border-color);
    max-height: 40vh;
    overflow-y: auto;
}

.substance-selection-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4px;
    margin-bottom: 8px;
}

.substance-select-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 4px 2px;
    border: 1px solid var(--border-color);
    background: var(--surface);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 10px;
    font-weight: 500;
    line-height: 1.2;
}

.substance-select-btn span:first-child {
    font-size: 16px;
}

.substance-select-btn:active {
    transform: scale(0.95);
    border-color: var(--primary-color);
    background: #f0f7ff;
}

.substance-detail-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 12px;
}

.substance-detail-btn {
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    background: var(--surface);
    border-radius: var(--radius-small);
    cursor: pointer;
    text-align: left;
    font-size: 14px;
    transition: all 0.2s ease;
}

.substance-detail-btn:active {
    transform: scale(0.98);
    border-color: var(--primary-color);
    background: #f0f7ff;
}

.route-selection-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 12px;
}

.route-select-btn {
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    background: var(--surface);
    border-radius: var(--radius-small);
    cursor: pointer;
    text-align: left;
    font-size: 14px;
    transition: all 0.2s ease;
}

.route-select-btn:active {
    transform: scale(0.98);
    border-color: var(--primary-color);
    background: #f0f7ff;
}

.symptom-selection-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    margin-bottom: 12px;
}

.symptom-category-btn {
    padding: 14px 12px;
    border: 2px solid var(--border-color);
    background: var(--surface);
    border-radius: var(--radius-small);
    cursor: pointer;
    text-align: center;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.symptom-category-btn:active {
    transform: scale(0.95);
    border-color: var(--primary-color);
    background: #f0f7ff;
}

.category-title {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.symptom-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 12px;
}

.symptom-item-btn {
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    background: var(--surface);
    border-radius: var(--radius-small);
    cursor: pointer;
    text-align: left;
    font-size: 14px;
    transition: all 0.2s ease;
}

.symptom-item-btn:active {
    transform: scale(0.98);
    border-color: var(--secondary-color);
    background: #f0fff4;
}

.chat-action-btn {
    width: 100%;
    padding: 14px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-small);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    margin-bottom: 8px;
    transition: all 0.2s ease;
}

.chat-action-btn:last-child {
    margin-bottom: 0;
}

.chat-action-btn:active {
    transform: scale(0.98);
}

.chat-action-btn.secondary {
    background: var(--text-secondary);
}

/* 응급처치 단계 */
.emergency-steps {
    margin: 20px 0;
}

.emergency-step {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
    padding: 16px;
    background: #f8f9fa;
    border-radius: var(--radius-small);
}

.step-number {
    font-size: 24px;
    flex-shrink: 0;
}

.step-content h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.step-content p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.warning-box {
    background: #fff3cd;
    border: 2px solid var(--warning-color);
    border-radius: var(--radius-small);
    padding: 16px;
    margin: 20px 0;
}

.warning-box strong {
    display: block;
    margin-bottom: 12px;
    color: var(--warning-color);
    font-size: 16px;
}

.warning-box ul {
    list-style: none;
    padding-left: 0;
}

.warning-box li {
    padding: 8px 0;
    font-size: 14px;
    color: var(--text-primary);
    border-bottom: 1px solid rgba(243, 156, 18, 0.2);
}

.warning-box li:last-child {
    border-bottom: none;
}

.qa-box {
    background: #e3f2fd;
    border-left: 4px solid var(--primary-color);
    padding: 16px;
    border-radius: var(--radius-small);
    margin-bottom: 20px;
}

.qa-question {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.6;
}

.action-buttons-bottom {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 24px;
}

/* 병원 찾기 */
.hospital-search {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}

#location-input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 16px;
    outline: none;
    transition: border-color 0.2s ease;
}

#location-input:focus {
    border-color: var(--primary-color);
}

#location-search-btn {
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--primary-gradient-start) 0%, var(--primary-gradient-end) 100%);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(74, 144, 226, 0.3);
}

#location-search-btn:active {
    transform: scale(0.95);
    box-shadow: 0 1px 4px rgba(74, 144, 226, 0.3);
}

.hospital-results {
    min-height: 100px;
    margin-top: 20px;
}

.hospital-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.hospital-item {
    background: var(--surface);
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    padding: 16px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.hospital-item:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-hover);
}

.hospital-header {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 12px;
}

.hospital-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary-gradient-start) 0%, var(--primary-gradient-end) 100%);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
}

.hospital-info {
    flex: 1;
}

.hospital-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.hospital-type {
    font-size: 13px;
    color: var(--text-secondary);
    background: #f0f7ff;
    padding: 4px 8px;
    border-radius: 6px;
    display: inline-block;
}

.hospital-details {
    margin-top: 12px;
}

.hospital-address {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.6;
}

.hospital-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.hospital-distance {
    font-size: 13px;
    color: var(--primary-color);
    font-weight: 600;
}

.hospital-call-btn {
    padding: 8px 16px;
    background: linear-gradient(135deg, var(--primary-gradient-start) 0%, var(--primary-gradient-end) 100%);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-small);
    font-size: 13px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(74, 144, 226, 0.3);
}

.hospital-call-btn:active {
    transform: scale(0.95);
}

.info-text {
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
    padding: 40px 20px;
    line-height: 1.6;
}

.contact-item {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: var(--radius-small);
    margin-bottom: 12px;
}

.contact-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.contact-info {
    flex: 1;
}

.contact-info h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.contact-btn {
    display: inline-block;
    padding: 10px 20px;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-small);
    font-size: 14px;
    font-weight: 600;
    transition: all 0.2s ease;
}

.contact-btn:active {
    transform: scale(0.95);
}

/* 공지사항 */
.notice-card {
    background: #fff9e6;
    border: 2px solid var(--warning-color);
}

.notice-card .card-header {
    background: linear-gradient(135deg, var(--warning-color) 0%, #e67e22 100%);
    color: white;
}

.notice-card .card-header h2 {
    color: white;
}

.notice-list {
    list-style: none;
    padding-left: 0;
}

.notice-list li {
    padding: 10px 0;
    font-size: 14px;
    color: var(--text-primary);
    line-height: 1.6;
    border-bottom: 1px solid rgba(243, 156, 18, 0.2);
}

.notice-list li:last-child {
    border-bottom: none;
}

/* 반응형 */
@media (min-width: 481px) {
    .app-container {
        max-width: 100%;
    }
}

/* 스크롤바 스타일링 */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--background);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}