/**
 * Sleep Planner & REM Calculator Styles
 * 반응형 디자인 포함
 */

:root {
    --primary-color: #6B7FD7;
    --secondary-color: #9CA9E8;
    --success-color: #4CAF50;
    --warning-color: #FF9800;
    --danger-color: #F44336;
    --dark-bg: #1a1a2e;
    --light-bg: #f5f7fa;
    --card-bg: #ffffff;
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --border-color: #e1e8ed;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 20px rgba(0,0,0,0.15);
}

/* 전체 컨테이너 */
.sleep-calculator-container,
.sleep-planner-container,
.sleep-content-container,
.meditation-container {
    max-width: 1200px;
    margin: 40px auto;
    padding: 20px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* 카드 스타일 */
.calculator-card,
.stat-card,
.content-card,
.meditation-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 30px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.calculator-card:hover,
.content-card:hover,
.meditation-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

/* 제목 스타일 */
.calculator-title,
.planner-title,
.content-main-title,
.meditation-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 15px;
    text-align: center;
}

.calculator-description,
.content-description,
.meditation-description {
    font-size: 16px;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 30px;
    line-height: 1.6;
}

/* 탭 스타일 */
.calculator-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    border-bottom: 2px solid var(--border-color);
}

.calc-tab {
    flex: 1;
    padding: 15px 20px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.3s ease;
}

.calc-tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.calc-tab:hover {
    color: var(--primary-color);
}

/* 입력 폼 스타일 */
.calc-input-group,
.form-group {
    margin-bottom: 20px;
}

.calc-input-group label,
.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.calc-time-input,
.calc-select,
input[type="time"],
input[type="date"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.calc-time-input:focus,
.calc-select:focus,
input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(107, 127, 215, 0.1);
}

/* 버튼 스타일 */
.calc-button,
.primary-button {
    width: 100%;
    padding: 15px 30px;
    font-size: 16px;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(107, 127, 215, 0.3);
}

.calc-button:hover,
.primary-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(107, 127, 215, 0.4);
}

.calc-button:active,
.primary-button:active {
    transform: translateY(0);
}

/* 결과 표시 */
.calc-result {
    margin-top: 30px;
    padding: 25px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    color: white;
    animation: slideIn 0.5s ease;
}

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

.result-highlight {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 20px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
}

.result-icon {
    font-size: 48px;
}

.result-time {
    flex: 1;
}

.result-label {
    display: block;
    font-size: 14px;
    opacity: 0.9;
    margin-bottom: 5px;
}

.result-value {
    display: block;
    font-size: 48px;
    font-weight: 700;
}

.result-details {
    padding: 15px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
}

.result-details p {
    margin: 10px 0;
    font-size: 16px;
}

.result-note {
    margin-top: 15px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 6px;
    font-size: 14px;
    line-height: 1.6;
}

/* 기상 시간 옵션 */
.wake-time-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin: 20px 0;
}

.wake-option {
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.wake-option:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.05);
}

.wake-option-time {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 10px;
}

.wake-option-cycles {
    font-size: 14px;
    opacity: 0.9;
}

/* 수면 플래너 스타일 */
.challenge-section {
    margin-bottom: 40px;
}

.challenge-active,
.challenge-start {
    padding: 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    color: white;
}

.challenge-active h3,
.challenge-start h3 {
    margin-top: 0;
    font-size: 24px;
}

.progress-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.stat-item {
    text-align: center;
}

.stat-label {
    display: block;
    font-size: 14px;
    opacity: 0.9;
    margin-bottom: 5px;
}

.stat-value {
    display: block;
    font-size: 32px;
    font-weight: 700;
}

.progress-bar {
    width: 100%;
    height: 20px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #4CAF50, #8BC34A);
    border-radius: 10px;
    transition: width 0.5s ease;
}

/* 통계 카드 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 20px;
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.stat-icon {
    font-size: 48px;
}

.stat-info {
    flex: 1;
}

.stat-number {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: var(--primary-color);
}

/* 폼 레이아웃 */
.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

/* 테이블 스타일 */
.records-table {
    overflow-x: auto;
}

.records-table table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
}

.records-table th,
.records-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.records-table th {
    background: var(--light-bg);
    font-weight: 600;
    color: var(--text-primary);
}

.quality-badge {
    display: inline-block;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 14px;
}

/* 콘텐츠 그리드 */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 25px;
    margin: 30px 0;
}

.content-card {
    padding: 25px;
}

.content-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.content-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.content-duration {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 12px;
    background: var(--light-bg);
    border-radius: 20px;
    font-size: 13px;
    color: var(--text-secondary);
    white-space: nowrap;
}

.content-body {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 20px;
}

.content-body h3,
.content-body h4 {
    color: var(--text-primary);
    margin-top: 20px;
    margin-bottom: 10px;
}

.content-body ul,
.content-body ol {
    padding-left: 25px;
}

.content-body li {
    margin: 8px 0;
}

.content-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.content-stats {
    display: flex;
    gap: 15px;
}

.stat-text {
    margin-left: 5px;
}

/* 명상 카드 */
.meditation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
    margin: 30px 0;
}

.meditation-icon {
    font-size: 64px;
    text-align: center;
    margin-bottom: 15px;
}

.meditation-name {
    font-size: 22px;
    font-weight: 600;
    text-align: center;
    color: var(--text-primary);
    margin: 15px 0;
}

.duration-badge {
    display: inline-block;
    padding: 8px 16px;
    background: var(--primary-color);
    color: white;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
}

.meditation-start-btn {
    width: 100%;
    margin-top: 15px;
    padding: 12px;
    background: var(--success-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.meditation-start-btn:hover {
    background: #45a049;
    transform: translateY(-2px);
}

/* 의학 근거 및 면책 조항 */
.medical-disclaimer,
.legal-disclaimer {
    margin-top: 50px;
    padding: 30px;
    background: var(--light-bg);
    border-radius: 12px;
    border-left: 4px solid var(--primary-color);
}

.medical-reference {
    margin-top: 20px;
    padding: 15px;
    background: rgba(107, 127, 215, 0.1);
    border-radius: 6px;
    font-size: 13px;
    color: var(--text-secondary);
}

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

.reference-list li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.disclaimer-box {
    padding: 25px;
    background: white;
    border-radius: 8px;
    border: 2px solid var(--warning-color);
}

.disclaimer-box p {
    margin: 15px 0;
}

.disclaimer-box ul {
    padding-left: 25px;
}

.disclaimer-box li {
    margin: 10px 0;
    line-height: 1.6;
}

/* 체크리스트 */
.checklist-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 15px;
    margin: 20px 0;
}

.checklist-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px;
    background: white;
    border-radius: 8px;
    border: 2px solid var(--border-color);
    transition: all 0.3s ease;
}

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

.checklist-checkbox {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.checklist-item label {
    flex: 1;
    cursor: pointer;
    margin: 0;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .calculator-title,
    .planner-title,
    .content-main-title,
    .meditation-title {
        font-size: 24px;
    }

    .content-grid,
    .meditation-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .calculator-tabs {
        flex-direction: column;
    }

    .result-highlight {
        flex-direction: column;
        text-align: center;
    }

    .result-value {
        font-size: 36px;
    }

    .checklist-grid {
        grid-template-columns: 1fr;
    }
}

/* 로딩 애니메이션 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* 알림 메시지 */
.sleep-message {
    padding: 15px 20px;
    border-radius: 8px;
    margin: 20px 0;
    font-size: 14px;
}

.sleep-message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.sleep-message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.sleep-message.info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* 오늘 달 모양 버튼 */
.moon-phase-link {
    margin-top: 20px;
    text-align: center;
}

.moon-phase-button {
    display: inline-block;
    padding: 14px 28px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.moon-phase-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
    text-decoration: none;
    color: white;
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

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

/* 모바일에서 버튼 크기 조정 */
@media (max-width: 768px) {
    .moon-phase-button {
        display: block;
        width: 100%;
        padding: 16px 20px;
        font-size: 15px;
    }
}

/* ====================================
   90일 챌린지 스타일
   ==================================== */

.sleep-90day-challenge {
    padding: 20px;
}

.sleep-90day-challenge .planner-title {
    text-align: center;
    font-size: 32px;
    margin-bottom: 30px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.challenge-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.challenge-dates {
    font-size: 14px;
    color: #b0b0b0;
}

.progress-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 25px;
}

.progress-stats .stat-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: all 0.3s ease;
}

.progress-stats .stat-item:hover {
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-2px);
}

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

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 12px;
    color: #b0b0b0;
    margin-bottom: 5px;
}

.stat-value {
    font-size: 24px;
    font-weight: bold;
    color: #667eea;
}

.progress-bar-container {
    margin-top: 20px;
}

.progress-bar {
    height: 30px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transition: width 0.5s ease;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 15px;
}

.progress-text {
    color: white;
    font-size: 14px;
    font-weight: bold;
}

/* 90일 달력 */
.calendar-90days {
    margin-top: 40px;
    padding: 25px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
}

.calendar-90days h4 {
    font-size: 20px;
    margin-bottom: 20px;
    color: #e0e0e0;
}

.calendar-legend {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: #b0b0b0;
}

.legend-box {
    width: 20px;
    height: 20px;
    border-radius: 5px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.legend-box.completed {
    background: linear-gradient(135deg, #66ea7e, #4caf50);
}

.legend-box.today {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.legend-box.future {
    background: rgba(255, 255, 255, 0.1);
}

.legend-box.incomplete {
    background: rgba(234, 102, 102, 0.3);
    border-color: #ea6666;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
    gap: 10px;
}

.calendar-day {
    aspect-ratio: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.calendar-day:hover {
    transform: scale(1.05);
    background: rgba(255, 255, 255, 0.08);
}

.calendar-day.completed {
    background: linear-gradient(135deg, rgba(102, 234, 126, 0.2), rgba(76, 175, 80, 0.2));
    border-color: #66ea7e;
}

.calendar-day.today {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.3), rgba(118, 75, 162, 0.3));
    border-color: #667eea;
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
}

.calendar-day.future {
    opacity: 0.4;
    cursor: not-allowed;
}

.calendar-day.incomplete {
    background: rgba(234, 102, 102, 0.1);
    border-color: #ea6666;
}

.day-number {
    font-size: 14px;
    font-weight: bold;
    color: #e0e0e0;
    margin-bottom: 4px;
}

.day-quality {
    font-size: 10px;
    margin-bottom: 2px;
}

.day-hours {
    font-size: 11px;
    color: #b0b0b0;
}

/* 차트 섹션 */
.challenge-charts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

.chart-container {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 25px;
}

.chart-container h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: #e0e0e0;
}

.chart-container canvas {
    max-height: 300px;
}

/* 챌린지 요약 */
.challenge-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin: 30px 0;
}

.summary-card {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: 15px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.summary-icon {
    font-size: 36px;
}

.summary-content {
    display: flex;
    flex-direction: column;
}

.summary-label {
    font-size: 13px;
    color: #b0b0b0;
    margin-bottom: 5px;
}

.summary-value {
    font-size: 22px;
    font-weight: bold;
    color: #667eea;
}

/* 챌린지 시작 섹션 */
.challenge-start-content {
    text-align: center;
    padding: 40px;
}

.challenge-icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.challenge-benefits {
    text-align: left;
    display: inline-block;
    margin: 20px 0;
    padding: 20px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 10px;
    border-left: 4px solid #667eea;
}

/* 수면 기록 폼 */
.sleep-record-section {
    margin-top: 40px;
    padding: 25px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
}

.record-form .form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 14px;
    color: #b0b0b0;
    margin-bottom: 8px;
}

.form-group input[type="date"],
.form-group input[type="time"],
.form-group select,
.form-group textarea {
    padding: 12px 15px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    color: #e0e0e0;
    font-size: 14px;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    background: rgba(255, 255, 255, 0.08);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .calendar-grid {
        grid-template-columns: repeat(auto-fill, minmax(45px, 1fr));
        gap: 6px;
    }

    .calendar-day {
        padding: 4px;
    }

    .day-number {
        font-size: 12px;
    }

    .day-quality {
        font-size: 8px;
    }

    .day-hours {
        font-size: 9px;
    }

    .challenge-charts {
        grid-template-columns: 1fr;
    }

    .progress-stats {
        grid-template-columns: 1fr;
    }

    .challenge-summary {
        grid-template-columns: 1fr;
    }

    .record-form .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .sleep-90day-challenge .planner-title {
        font-size: 24px;
    }

    .challenge-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .calendar-grid {
        grid-template-columns: repeat(7, 1fr);
    }
}