/* 메인 스타일 */
:root {
    /* 색상 팔레트 */
    --primary-color: #3498db;
    --primary-dark: #2980b9;
    --secondary-color: #2ecc71;
    --secondary-dark: #27ae60;
    --danger-color: #e74c3c;
    --danger-dark: #c0392b;
    --warning-color: #f39c12;
    --warning-dark: #e67e22;
    --success-color: #27ae60;
    --success-dark: #229954;
    
    /* 중성 색상 */
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --text-light: #bdc3c7;
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #ecf0f1;
    --border-color: #e1e8ed;
    --border-light: #f1f2f6;
    
    /* 그림자 */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
    --shadow-md: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23);
    --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23);
    
    /* 간격 */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* 테두리 반경 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* 전환 */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* 기본 레이아웃 */
body {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* 구글 로그인 헤더 */
.login-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    position: static;
    z-index: 100;
    background: var(--bg-secondary);
}

.app-title {
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.app-title::before {
    content: "";
    width: 2rem;
    height: 2rem;
    background-image: url('/images/g4.png');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    display: inline-block;
}

.login-header .btn-google {
    background: #4285f4;
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.login-header .btn-google:hover {
    background: #3367d6;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.login-header .btn-google i {
    font-size: 1rem;
}

/* 섹션 공통 스타일 */
section {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.section-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.section-header h3 {
    color: var(--text-primary);
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.section-header h3 i {
    color: var(--primary-color);
}

/* 크레게코 정보 섹션 */
.gecko-info-section {
    margin-bottom: var(--spacing-lg);
}

.gecko-header {
    padding: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-lg);
}

.gecko-profile {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.gecko-avatar {
    position: relative;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--primary-color);
    cursor: pointer;
    transition: var(--transition-normal);
}

.gecko-avatar:hover {
    transform: scale(1.05);
}

.gecko-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.upload-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(52, 152, 219, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition-normal);
}

.gecko-avatar:hover .upload-overlay {
    opacity: 1;
}

.upload-overlay i {
    color: white;
    font-size: 1.5rem;
}

.gecko-details h2 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.gecko-details p {
    color: var(--text-secondary);
    margin: 0;
}

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

/* 오늘의 투두 섹션 */
.today-tasks-section {
    margin-bottom: var(--spacing-lg);
}

.date-display {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.tasks-container {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* 투두 관리 버튼들 */
.tasks-actions {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    padding-top: 0;
    justify-content: center;
    border-top: 1px solid var(--border-light);
    margin-top: var(--spacing-md);
}

.tasks-actions .btn {
    flex: 1;
    max-width: 200px;
    padding: var(--spacing-md) var(--spacing-lg);
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: var(--transition-normal);
}

.tasks-actions .btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* 투두 초기화 버튼 스타일 */
.btn-reset {
    background: #6c757d;
    color: white;
    border-color: #6c757d;
    position: relative;
}

.btn-reset:hover {
    background: #5a6268;
    border-color: #5a6268;
}

.btn-reset .gecko-reset-icon {
    height: 40px;
    width: 40px;
    margin-right: var(--spacing-xs);
    vertical-align: middle;
    object-fit: contain;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.2));
}

/* 캘린더 섹션 */
.calendar-section {
    margin-bottom: var(--spacing-lg);
}

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

.calendar-title-area {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.calendar-title-area h3 {
    margin: 0;
}

.calendar-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.calendar-nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.calendar-nav span {
    font-weight: 600;
    color: var(--text-primary);
    min-width: 120px;
    text-align: center;
}

.calendar-view-buttons {
    display: flex;
    gap: var(--spacing-sm);
}

.calendar-view-buttons .btn {
    font-size: 0.8rem;
    padding: var(--spacing-xs) var(--spacing-sm);
}

.calendar-view-buttons .btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.calendar-photo-upload {
    margin-top: var(--spacing-md);
    text-align: center;
    padding: var(--spacing-md);
    border-top: 1px solid var(--border-light);
}

.calendar-container {
    padding: var(--spacing-lg);
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: var(--spacing-xs);
}

/* 사진 앨범 섹션 */
.photo-album-section {
    margin-bottom: var(--spacing-lg);
}

.photo-grid {
    padding: var(--spacing-lg);
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: var(--spacing-md);
}

/* 기록 보기 섹션 */
.stats-section {
    margin-bottom: var(--spacing-lg);
}

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

.stats-container {
    padding: var(--spacing-lg);
}

.chart-container {
    height: 300px;
    margin-bottom: var(--spacing-lg);
}

.stats-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
}

.stat-item {
    text-align: center;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}

.stat-label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

/* 하단 툴바 */
.bottom-toolbar {
    position: sticky;
    bottom: 0;
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-md);
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    box-shadow: var(--shadow-lg);
    margin: 0 calc(-1 * var(--spacing-md));
    margin-top: auto;
    min-height: 60px; /* 최소 높이 유지 */
}

/* 대화 섹션 스타일 */
#chat-section {
    margin-bottom: var(--spacing-xl);
}

.chat-container {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    overflow: hidden;
    height: 400px;
    display: flex;
    flex-direction: column;
}

.chat-messages {
    flex: 1;
    padding: var(--spacing-lg);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.chat-message {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    max-width: 80%;
}

.chat-message.user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.chat-message.gecko {
    align-self: flex-start;
}

.chat-message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 0.9rem;
    flex-shrink: 0;
}

.chat-message.user .chat-message-avatar {
    background: var(--secondary-color);
}

.chat-message.gecko .chat-message-avatar {
    background: transparent;
    background-image: url('/images/g5.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    border: 2px solid var(--primary-color);
}

.chat-message-content {
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    box-shadow: var(--shadow-sm);
    word-wrap: break-word;
}

.chat-message.user .chat-message-content {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.chat-message-sender {
    font-weight: 600;
    font-size: 0.8rem;
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
}

.chat-message.user .chat-message-sender {
    color: rgba(255, 255, 255, 0.8);
}

.chat-message-text {
    font-size: 0.95rem;
    line-height: 1.4;
}

.chat-input-area {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-light);
    background: white;
}

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

.chat-input {
    flex: 1;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.chat-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.send-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-weight: 600;
    transition: var(--transition-fast);
}

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

/* 대화 메시지 애니메이션 */
.chat-message {
    animation: slideIn 0.3s ease-out;
}

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

/* 반응형 디자인 */
@media (max-width: 768px) {
    .app-container {
        padding: var(--spacing-sm);
        gap: var(--spacing-md);
    }
    
    .gecko-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .gecko-actions {
        width: 100%;
        justify-content: flex-end;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .calendar-nav {
        justify-content: center;
    }
    
    .stats-nav {
        justify-content: center;
    }
    
    .bottom-toolbar {
        flex-direction: column;
    }
    
    .photo-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    }
}

@media (max-width: 480px) {
    .gecko-profile {
        flex-direction: column;
        text-align: center;
    }
    
    .calendar-grid {
        gap: 2px;
    }
    
    .photo-grid {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
        gap: var(--spacing-sm);
    }
}