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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            min-height: 100vh;
            padding: 20px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            background: white;
            border-radius: 15px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
            overflow: hidden;
        }

        .header {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        .header-left {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .header-right {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .language-selector {
            display: flex;
            gap: 10px;
        }

        .language-button {
            background: rgba(255, 255, 255, 0.2);
            color: white;
            border: 2px solid rgba(255, 255, 255, 0.3);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
        }

        .language-button:hover {
            background: rgba(255, 255, 255, 0.3);
            border-color: rgba(255, 255, 255, 0.5);
        }

        .language-button.active {
            background: rgba(255, 255, 255, 0.9);
            color: #667eea;
            border-color: rgba(255, 255, 255, 0.9);
        }

        .today-button {
            background: rgba(255, 255, 255, 0.3);
            color: white;
            border: 2px solid rgba(255, 255, 255, 0.5);
            padding: 10px 20px;
            border-radius: 25px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            backdrop-filter: blur(10px);
            white-space: nowrap;
        }

        .today-button:hover {
            background: rgba(255, 255, 255, 0.4);
            border-color: rgba(255, 255, 255, 0.8);
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
        }

        .today-button:active {
            transform: translateY(0);
        }

        .header h1 {
            font-size: 2rem;
            font-weight: 600;
        }

        .status-box {
            background: rgba(255, 255, 255, 0.2);
            padding: 15px 25px;
            border-radius: 10px;
            backdrop-filter: blur(10px);
            min-width: 250px;
            text-align: center;
        }

        .status-box .label {
            font-size: 0.85rem;
            opacity: 0.9;
            margin-bottom: 5px;
        }

        .status-box .value {
            font-size: 1.2rem;
            font-weight: 600;
        }

        .content {
            padding: 30px;
            max-height: calc(100vh - 200px);
            overflow-y: auto;
        }

        .month-section {
            margin-bottom: 40px;
        }

        .month-title {
            font-size: 1.5rem;
            font-weight: 600;
            color: #667eea;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 3px solid #667eea;
        }

        .days-grid {
            display: grid;
            grid-template-columns: repeat(7, 1fr);
            gap: 12px;
        }

        .empty-cell {
            visibility: hidden;
        }

        .weekday-header {
            display: grid;
            grid-template-columns: repeat(7, 1fr);
            gap: 12px;
            margin-bottom: 10px;
            font-weight: 600;
            color: #667eea;
            text-align: center;
        }

        .weekday-header > div {
            padding: 8px;
            background: rgba(102, 126, 234, 0.1);
            border-radius: 8px;
        }

        .day-button {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            padding: 15px 10px;
            border-radius: 10px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
        }

        .day-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
        }

        .day-button:active {
            transform: translateY(-1px);
        }

        .copied-notification {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: #4caf50;
            color: white;
            padding: 15px 25px;
            border-radius: 10px;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.3s ease;
            pointer-events: none;
            z-index: 1000;
        }

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

        /* 반응형 디자인 */
        @media (max-width: 768px) {
            .header {
                flex-direction: column;
                text-align: center;
            }

            .header-left {
                flex-direction: column;
                width: 100%;
            }

            .header h1 {
                font-size: 1.5rem;
            }

            .today-button {
                width: 100%;
                max-width: 300px;
            }

            .weekday-header {
                gap: 8px;
                font-size: 0.85rem;
            }

            .weekday-header > div {
                padding: 6px;
            }

            .days-grid {
                grid-template-columns: repeat(7, 1fr);
                gap: 8px;
            }

            .day-section {
                padding: 8px;
                gap: 6px;
            }

            .day-button {
                padding: 12px 8px;
                font-size: 0.9rem;
            }

            .intro-button {
                font-size: 0.75rem;
                padding: 10px 8px;
            }

            .verse-button {
                padding: 12px 8px;
                font-size: 0.9rem;
            }

            .content {
                padding: 20px;
            }

            .status-box {
                min-width: 100%;
            }

            .copied-notification {
                bottom: 20px;
                right: 20px;
                left: 20px;
                text-align: center;
            }
        }

        @media (max-width: 480px) {
            body {
                padding: 10px;
            }

            .header {
                padding: 20px;
            }

            .weekday-header {
                gap: 6px;
                font-size: 0.7rem;
            }

            .weekday-header > div {
                padding: 4px;
            }

            .days-grid {
                grid-template-columns: repeat(7, 1fr);
                gap: 6px;
            }

            .day-section {
                padding: 6px;
                gap: 4px;
            }

            .day-button {
                padding: 10px 5px;
                font-size: 0.85rem;
            }

            .intro-button {
                font-size: 0.7rem;
                padding: 8px 5px;
            }

            .verse-button {
                padding: 10px 5px;
                font-size: 0.85rem;
            }

            .month-title {
                font-size: 1.2rem;
            }
        }

        /* 스크롤바 스타일 */
        .content::-webkit-scrollbar {
            width: 10px;
        }

        .content::-webkit-scrollbar-track {
            background: #f1f1f1;
        }

        .content::-webkit-scrollbar-thumb {
            background: #667eea;
            border-radius: 5px;
        }

        .content::-webkit-scrollbar-thumb:hover {
            background: #764ba2;
        }

        /* 날짜 섹션 스타일 */
        .day-section {
            display: flex;
            flex-direction: column;
            gap: 8px;
            padding: 12px;
            background: rgba(255, 255, 255, 0.5);
            border-radius: 12px;
            border: 2px solid rgba(102, 126, 234, 0.15);
            transition: all 0.3s ease;
            min-width: 0; /* flex 아이템이 줄어들 수 있도록 */
        }

        .day-section:hover {
            background: rgba(255, 255, 255, 0.7);
            border-color: rgba(102, 126, 234, 0.3);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
        }

        /* 오늘 날짜 하이라이트 */
        .day-section.today-highlight {
            background: rgba(102, 126, 234, 0.2);
            border: 3px solid #667eea;
            box-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
            animation: pulse 2s ease-in-out infinite;
        }

        @keyframes pulse {
            0%, 100% {
                box-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
            }
            50% {
                box-shadow: 0 0 30px rgba(102, 126, 234, 0.8);
            }
        }

        /* 소개 버튼 스타일 */
        .intro-button {
            background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
            color: white;
            border: none;
            padding: 12px 10px;
            border-radius: 8px;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 3px 10px rgba(240, 147, 251, 0.3);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            width: 100%;
            min-width: 0;
        }

        .intro-button:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(240, 147, 251, 0.5);
        }

        .intro-button:active {
            transform: translateY(-1px);
        }

        /* 말씀 버튼 스타일 */
        .verse-button {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            padding: 15px 10px;
            border-radius: 10px;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            width: 100%;
            min-width: 0;
        }

        .verse-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
        }

        .verse-button:active {
            transform: translateY(-1px);
        }

        @media (max-width: 768px) {
            .intro-button {
                font-size: 0.75rem;
                padding: 10px 8px;
            }

            .verse-button {
                padding: 12px 8px;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 480px) {
            .intro-button {
                font-size: 0.7rem;
                padding: 8px 5px;
            }

            .verse-button {
                padding: 10px 5px;
                font-size: 0.85rem;
            }
        }