:root {
    --heritage-green: #124E3F;
    --heritage-green-hover: #196653;
    --heritage-green-light: #237E67;
    --heritage-green-pale: #ECF5F2;
    --possibility-white: #FAFDFD;
    --text-primary: #112622;
    --text-secondary: #48635E;
    --border-color: #D3E2DD;
    --card-shadow: 0 8px 30px rgba(18, 78, 63, 0.05);
    --input-focus-shadow: 0 0 0 0.25rem rgba(18, 78, 63, 0.15);
}

html,
body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--possibility-white);
    color: var(--text-primary);
}

h1:focus {
    outline: none;
}

a,
.btn-link {
    color: var(--heritage-green);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover,
.btn-link:hover {
    color: var(--heritage-green-hover);
}

.btn-primary {
    color: #fff;
    background-color: var(--heritage-green);
    border-color: var(--heritage-green);
    border-radius: 8px;
    padding: 0.5rem 1.25rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--heritage-green-hover);
    border-color: var(--heritage-green-hover);
}

.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-check-input:focus {
    box-shadow: var(--input-focus-shadow);
    border-color: var(--heritage-green-light);
}

.form-control,
.form-select {
    border-radius: 8px;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    transition: all 0.2s ease;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--heritage-green-light);
}

.content {
    padding-top: 1.1rem;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid red;
}

.validation-message {
    color: red;
}

#blazor-error-ui {
    background: var(--heritage-green-pale);
    bottom: 0;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
    border-top: 2px solid var(--heritage-green);
}

#blazor-error-ui .dismiss {
    cursor: pointer;
    position: absolute;
    right: 0.75rem;
    top: 0.5rem;
}

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, var(--heritage-green);
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

.blazor-error-boundary::after {
    content: "An error has occurred."
}

.loading-progress {
    position: relative;
    display: block;
    width: 8rem;
    height: 8rem;
    margin: 20vh auto 1rem auto;
}

.loading-progress circle {
    fill: none;
    stroke: var(--border-color);
    stroke-width: 0.6rem;
    transform-origin: 50% 50%;
    transform: rotate(-90deg);
}

.loading-progress circle:last-child {
    stroke: var(--heritage-green);
    stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
    transition: stroke-dasharray 0.05s ease-in-out;
}

.loading-progress-text {
    position: absolute;
    text-align: center;
    font-weight: bold;
    inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
    color: var(--text-primary);
}

.loading-progress-text:after {
    content: var(--blazor-load-percentage-text, "Loading");
}

.loading-message {
    position: absolute;
    text-align: center;
    font-weight: 500;
    inset: calc(20vh + 9.5rem) 0 auto 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    letter-spacing: -0.3px;
    animation: loading-pulse 1.8s infinite ease-in-out;
}

@keyframes loading-pulse {

    0%,
    100% {
        opacity: 0.6;
    }

    50% {
        opacity: 1;
    }
}

code {
    color: #c02d76;
}

/* 강의 상세 모달 팝업 스타일 */
.custom-modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(14, 32, 28, 0.4);
    backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    animation: fadeIn 0.2s ease-out;
}

.custom-modal-content {
    background-color: #ffffff !important;
    /* 투명도를 배제하고 확실한 불투명 백색 강제 지정 */
    border-radius: 18px;
    box-shadow: 0 10px 30px rgba(18, 78, 63, 0.15);
    width: 90%;
    max-width: 500px;
    overflow: hidden;
    animation: slideUp 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.custom-modal-header {
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}

.course-cell-hover {
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.course-cell-hover:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 4px 12px rgba(18, 78, 63, 0.12) !important;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* 시간표 코스 셀 기본 스타일 */
.timetable-course-title {
    font-size: 0.9rem;
    line-height: 1.25;
    word-break: break-all;
    font-weight: 700;
}

.timetable-course-room {
    font-size: 0.72rem;
    line-height: 1.2;
    margin-top: 3px;
    opacity: 0.9;
}

.timetable-course-td {
    padding: 6px 8px !important;
}

/* 모바일 환경(640px 이하)에서의 촘촘한 최적화 */
@media (max-width: 640.98px) {
    .timetable-course-title {
        font-size: 0.75rem !important;
        /* 글자 크기를 살짝 줄여 높이 팽창 최소화 */
        line-height: 1.15 !important;
    }

    .timetable-course-room {
        font-size: 0.65rem !important;
        margin-top: 1px !important;
    }

    .timetable-course-td {
        padding: 2px 3px !important;
        /* 패딩을 더 줄여 셀 내부 공간 확보 */
    }
}

/* 시간표 페이지 헤더 플로팅 스타일 */
.floating-timetable-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--background-color, #f8f9fa);
    padding: 12px 6px;
    border-bottom: 1px solid var(--border-color);
}

@media (max-width: 767.98px) {
    .floating-timetable-header {
        top: 3.5rem;
        /* 모바일 네비 탑바 밑에 고정 */
        box-shadow: 0 4px 10px rgba(18, 78, 63, 0.08) !important;
        background-color: #ffffff;
        /* 모바일 가시성 확보 */
        margin-left: -0.5rem;
        margin-right: -0.5rem;
        padding: 10px 12px;
        border-radius: 0 0 12px 12px;
    }
}

/* 미니 시간표 썸네일 캐러셀 시스템 */
.mini-schedule-thumbnail {
    position: relative;
    width: 64px;
    height: 68px;
    min-width: 64px;
    flex-shrink: 0; /* 캐러셀 스크롤 시 찌그러짐 방지 */
    background-color: #fafafa;
    border: 1.5px solid #e2e8f0;
    border-radius: 12px;
    cursor: pointer;
    padding: 6px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    box-sizing: border-box;
}

.mini-schedule-thumbnail.active {
    border-color: var(--heritage-green);
    background-color: var(--heritage-green-pale);
    box-shadow: 0 4px 12px rgba(18, 78, 63, 0.12);
}

.badge-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    background-color: #dc3545; /* 인덱스 빨간 강조색 */
    color: #ffffff;
    font-size: 0.65rem;
    font-weight: 700;
    border-radius: 50%;
    margin: 0 auto 4px auto; /* 가운데 정렬 및 하단 여백 */
    text-align: center;
    line-height: 1;
    box-shadow: 0 1px 3px rgba(0,0,0,0.15);
}

.mini-grid {
    display: flex;
    width: 100%;
    height: 32px;
    gap: 1px;
    background-color: #ffffff;
    border: 1px solid #edf2f7;
    border-radius: 4px;
    padding: 1px;
    box-sizing: border-box;
}

.mini-column {
    flex: 1;
    position: relative;
    height: 100%;
    background-color: #f7fafc;
}

.mini-block {
    position: absolute;
    width: 100%;
    background-color: rgba(18, 78, 63, 0.25); /* 연한 브랜드 컬러 */
    border-radius: 1px;
}