:root {
            --text: oklch(91% 0.008 250);
            --muted: oklch(68% 0.012 250);
            --quiet: oklch(55% 0.012 250);
            --time-accent: rgb(251, 191, 36);
            --time-glow: oklch(82% 0.16 82 / 0.26);
            --time-change-glow: oklch(82% 0.16 82 / 0.5);
            --finished-accent: oklch(78% 0.14 165);
            --finished-glow: oklch(70% 0.14 165 / 0.34);
            --finished-change-glow: oklch(70% 0.14 165 / 0.62);
            --exam-card-border: oklch(82% 0.16 82 / 0.20);
            --exam-day-border: oklch(82% 0.16 82 / 0.44);
            --exam-group-gap: 1.2rem;
            --exam-day-radius: 20px;
            --sun-x: 54%;
            --sun-y: 36%;
            --sun-size: clamp(220px, 34vw, 480px);
        }

        body {
            font-family: "Noto Serif SC", serif;
            position: relative;
            background: oklch(10% 0.04 265);
            color: var(--text);
            min-height: 100vh;
            overflow-x: hidden;
        }

        .scene-bg {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: calc(100vh + var(--scene-extra, 220px));
            z-index: 0;
            pointer-events: none;
            transform: translate3d(0, var(--scene-shift, 0px), 0);
            will-change: transform;
            background:
                radial-gradient(circle var(--sun-size) at var(--sun-x) var(--sun-y), oklch(66% 0.18 45 / 0.70) 0%, oklch(42% 0.14 31 / 0.42) 42%, transparent 100%),
                radial-gradient(circle at 100% 100%, oklch(22% 0.08 242 / 0.72) 0%, oklch(16% 0.07 250 / 0.55) 34%, transparent 62%),
                linear-gradient(158deg, oklch(24% 0.09 304) 0%, oklch(18% 0.08 292) 31%, oklch(31% 0.12 34) 52%, oklch(16% 0.08 258) 78%, oklch(13% 0.07 246) 100%);
        }

        .scene-bg::before,
        .scene-bg::after {
            content: "";
            position: absolute;
            inset: 42% -8% 0;
            pointer-events: none;
        }

        .scene-bg::before {
            background:
                radial-gradient(ellipse at 52% 2%, oklch(70% 0.17 47 / 0.20) 0%, oklch(47% 0.13 32 / 0.12) 18%, transparent 48%),
                linear-gradient(to bottom, oklch(16% 0.07 282 / 0.20), oklch(9% 0.04 267 / 0.84) 72%);
        }

        .scene-bg::after {
            opacity: 0.42;
            filter: blur(0.3px);
            background:
                radial-gradient(ellipse at 51% 8%, oklch(78% 0.13 55 / 0.16) 0%, transparent 23%),
                repeating-linear-gradient(176deg, transparent 0 28px, oklch(75% 0.11 50 / 0.055) 29px 30px, transparent 31px 58px);
            mask-image: linear-gradient(90deg, transparent 0%, black 16%, black 84%, transparent 100%);
            -webkit-mask-image: linear-gradient(90deg, transparent 0%, black 16%, black 84%, transparent 100%);
        }

        body > :not(.scene-bg) {
            position: relative;
            z-index: 1;
        }

        .page-header {
            text-align: center;
            padding: 2.8rem 1rem 1.75rem;
            animation: fadeInDown 1s ease-out both;
            will-change: transform, opacity;
        }

        .page-title {
            margin-bottom: 1rem;
            color: rgb(251, 191, 36);
            font-family: "Libre Baskerville", "Noto Serif SC", serif;
            font-size: 4.3rem;
            font-weight: 700;
            line-height: 1.08;
            text-shadow: 0 0 28px oklch(82% 0.16 82 / 0.22);
        }

        .page-subtitle {
            color: var(--muted);
            font-size: 1.2rem;
            font-weight: 400;
            letter-spacing: 0.15em;
            text-transform: uppercase;
        }

        .countdown-section {
            --countdown-accent: var(--time-accent);
            --countdown-glow: var(--time-glow);
            --countdown-change-glow: var(--time-change-glow);
            position: relative;
            box-sizing: border-box;
            overflow: hidden;
            margin-bottom: 0.9rem;
            padding: 2.45rem 2.75rem;
            border-radius: 28px;
            background: oklch(0% 0 0 / 0.35);
            border: 1px solid oklch(82% 0.16 82 / 0.34);
            backdrop-filter: blur(25px) saturate(140%);
            -webkit-backdrop-filter: blur(25px) saturate(140%);
            box-shadow: 0 28px 80px oklch(7% 0.02 270 / 0.36), 0 0 60px oklch(78% 0.16 82 / 0.14), inset 0 1px 0 oklch(100% 0 0 / 0.10);
            animation: fadeInUp 1s ease-out 0.18s both;
            will-change: transform, opacity;
        }

        .countdown-section.is-previewing-exam {
            --countdown-accent: oklch(74% 0.14 245);
            --countdown-glow: oklch(70% 0.15 245 / 0.34);
            --countdown-change-glow: oklch(70% 0.16 245 / 0.62);
        }

        .countdown-section.is-finished-exam {
            --countdown-accent: var(--finished-accent);
            --countdown-glow: var(--finished-glow);
            --countdown-change-glow: var(--finished-change-glow);
        }

        .countdown-section.is-height-animating {
            transition: height 0.42s cubic-bezier(0.16, 1, 0.3, 1);
        }

        .countdown-section::before,
        .countdown-section::after {
            content: "";
            position: absolute;
            pointer-events: none;
        }

        .countdown-section::before {
            inset: 0;
            background: linear-gradient(135deg, oklch(100% 0 0 / 0.05), oklch(100% 0 0 / 0.02) 50%, oklch(100% 0 0 / 0.05));
        }

        .countdown-section::after {
            inset: -50%;
            background: linear-gradient(45deg, transparent 30%, oklch(82% 0.16 82 / 0.05) 50%, transparent 70%);
        }

        .countdown-main,
        .countdown-exam,
        .countdown-info,
        .countdown-timer {
            position: relative;
            z-index: 1;
        }

        .countdown-main {
            display: flex;
            flex-direction: column;
            margin-bottom: 0.7rem;
        }

        .countdown-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
        }

        .countdown-label {
            color: var(--muted);
            font-size: 1.08rem;
            letter-spacing: 0.15em;
            text-transform: uppercase;
        }

        .countdown-progress {
            color: var(--text);
            font-family: "JetBrains Mono", monospace;
            font-size: 1.08rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            white-space: nowrap;
        }

        .countdown-progress-current {
            color: var(--countdown-accent);
            text-shadow: 0 0 14px var(--countdown-glow);
            transition: color 0.22s ease-out, text-shadow 0.22s ease-out;
        }

        .countdown-exam {
            margin-top: 0.7rem;
            color: var(--text);
            font-size: 2.35rem;
            font-weight: 700;
            line-height: 1.2;
        }

        .countdown-info {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 0.8rem;
            margin-bottom: 1.25rem;
        }

        .countdown-detail {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.55rem 1.15rem;
            border-radius: 12px;
            border: 1px solid var(--countdown-glow);
            background: oklch(0% 0 0 / 0.25);
            color: var(--countdown-accent);
            font-size: 1.15rem;
            text-shadow: 0 0 14px var(--countdown-glow);
            transition: color 0.22s ease-out, border-color 0.22s ease-out, text-shadow 0.22s ease-out;
        }

        .countdown-detail span:last-child {
            min-width: 0;
        }

        .countdown-detail-icon,
        .emoji-icon {
            opacity: 0.9;
        }

        .countdown-detail-icon {
            flex: 0 0 auto;
        }

        .countdown-timer {
            display: grid;
            grid-template-columns: repeat(4, minmax(0, 1fr));
            gap: 1rem;
        }

        .time-unit {
            min-width: 0;
            padding: 0.86rem 0.85rem;
            text-align: center;
            border-radius: 16px;
            border: 1px solid oklch(82% 0.16 82 / 0.18);
            background: oklch(0% 0 0 / 0.30);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            transition: transform 0.22s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.22s ease-out, box-shadow 0.22s ease-out;
        }

        .time-unit:hover {
            transform: translateY(-4px);
            border-color: oklch(82% 0.16 82 / 0.38);
            box-shadow: 0 8px 30px oklch(82% 0.16 82 / 0.20);
        }

        .time-value {
            display: block;
            margin-bottom: 0.5rem;
            color: var(--countdown-accent);
            font-family: "JetBrains Mono", monospace;
            font-size: 4.65rem;
            font-weight: 700;
            line-height: 1;
            font-variant-numeric: tabular-nums;
            text-shadow: 0 0 22px var(--countdown-glow);
            transition: color 0.22s ease-out, text-shadow 0.22s ease-out;
        }

        .time-digit {
            display: inline-block;
            min-width: 0.62em;
            transition: opacity 0.18s ease-out, filter 0.18s ease-out, text-shadow 0.18s ease-out;
        }

        .time-digit.is-changing {
            opacity: 0.28;
            filter: blur(2px);
            text-shadow: 0 0 30px var(--countdown-change-glow);
        }

        .time-label {
            color: var(--muted);
            font-size: 1rem;
            font-weight: 600;
            letter-spacing: 0.1em;
            text-transform: uppercase;
        }

        .exam-list {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 0.9rem 0;
            align-items: stretch;
        }

        .exam-day-group {
            display: grid;
            grid-column: span var(--day-span);
            grid-template-columns: repeat(var(--day-columns), minmax(0, 1fr));
            align-items: stretch;
            min-width: 0;
        }

        .exam-card {
            background: oklch(0% 0 0 / 0.35);
            border: 1px solid var(--exam-card-border);
            border-radius: 0;
            color: var(--text);
            overflow: hidden;
            padding: 0.82rem 0.92rem;
            backdrop-filter: blur(25px) saturate(140%);
            -webkit-backdrop-filter: blur(25px) saturate(140%);
            box-shadow: 0 18px 54px oklch(7% 0.02 270 / 0.26), inset 0 1px 0 oklch(100% 0 0 / 0.10);
            transform: translateZ(0);
            animation: fadeInUp 0.9s ease-out both;
            transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.4s ease, box-shadow 0.4s ease, opacity 0.4s ease, filter 0.4s ease;
            will-change: transform, opacity;
        }

        .exam-card h4 {
            font-size: 1.08rem;
            line-height: 1.35;
        }

        @media (min-width: 1001px) {
            .exam-day-group.is-single-day.is-left-single {
                margin-right: calc(var(--exam-group-gap) / 2);
            }

            .exam-day-group.is-single-day.is-right-single {
                margin-left: calc(var(--exam-group-gap) / 2);
            }

            .exam-card:not(.day-d-left) {
                margin-left: -1px;
            }

            .exam-card:not(.day-d-top) {
                margin-top: -1px;
            }

            .exam-card.day-d-top {
                border-top-color: var(--exam-day-border);
            }

            .exam-card.day-d-right {
                border-right-color: var(--exam-day-border);
            }

            .exam-card.day-d-bottom {
                border-bottom-color: var(--exam-day-border);
            }

            .exam-card.day-d-left {
                border-left-color: var(--exam-day-border);
            }

            .exam-card.day-d-tl {
                border-top-left-radius: var(--exam-day-radius);
            }

            .exam-card.day-d-tr {
                border-top-right-radius: var(--exam-day-radius);
            }

            .exam-card.day-d-br {
                border-bottom-right-radius: var(--exam-day-radius);
            }

            .exam-card.day-d-bl {
                border-bottom-left-radius: var(--exam-day-radius);
            }
        }

        .exam-card::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, oklch(100% 0 0 / 0.08) 0%, transparent 100%);
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.4s ease;
            transition-delay: 0s;
        }

        .exam-card.is-selected {
            z-index: 2;
            transform: translateY(-6px) scale(1.01);
            border-color: oklch(100% 0 0 / 0.25);
            box-shadow: 0 16px 50px oklch(0% 0 0 / 0.50);
        }

        .exam-card.is-selected::before {
            opacity: 1;
        }

        @media (hover: hover) and (pointer: fine) {
            .exam-card {
                transition-delay: 0s;
            }

            .exam-list:not(.has-selected-card) .exam-card:hover {
                z-index: 2;
                transform: translateY(-6px) scale(1.01);
                border-color: oklch(100% 0 0 / 0.25);
                box-shadow: 0 16px 50px oklch(0% 0 0 / 0.50);
                transition-delay: 0.1s;
            }

            .exam-list:not(.has-selected-card) .exam-card:hover::before {
                opacity: 1;
                transition-delay: 0.1s;
            }
        }

        .exam-card > * {
            position: relative;
            z-index: 1;
        }

        .exam-info {
            display: flex;
            flex-wrap: nowrap;
            gap: 1.45rem;
            margin-top: 0.55rem;
            color: var(--text);
            font-size: 0.82rem;
        }

        .exam-info-item {
            display: flex;
            align-items: center;
            gap: 0.55rem;
            white-space: nowrap;
        }

        .exam-title.is-accented,
        .exam-info-value.is-accented {
            color: var(--time-accent);
            text-shadow: 0 0 12px var(--time-glow);
            transition: color 0.22s ease-out, text-shadow 0.22s ease-out;
        }

        .exam-content {
            min-width: 0;
        }

        .exam-row {
            display: grid;
            grid-template-columns: minmax(0, 1fr) auto;
            align-items: center;
            gap: 2rem;
        }

        .status-badge {
            flex: 0 0 auto;
            padding: 0.48rem 1.25rem;
            border-radius: 14px;
            font-size: 0.875rem;
            font-weight: 700;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            white-space: nowrap;
            box-shadow: 0 4px 15px oklch(0% 0 0 / 0.30);
            transition: 0.3s ease;
        }

        .status-date {
            display: none;
        }

        .status-badge.finished {
            background: oklch(65% 0.14 165 / 0.20);
            border: 1.5px solid oklch(65% 0.14 165 / 0.40);
            color: oklch(83% 0.12 165);
        }

        .status-badge.ongoing {
            background: oklch(78% 0.16 82 / 0.25);
            border: 1.5px solid oklch(78% 0.16 82 / 0.50);
            color: oklch(88% 0.14 90);
        }

        .status-badge.next {
            background: oklch(72% 0.15 305 / 0.22);
            border: 1.5px solid oklch(72% 0.15 305 / 0.44);
            color: oklch(86% 0.09 305);
        }

        .status-badge.upcoming {
            background: oklch(64% 0.16 250 / 0.20);
            border: 1.5px solid oklch(64% 0.16 250 / 0.40);
            color: oklch(78% 0.12 245);
        }

        .status-finished {
            background: oklch(0% 0 0 / 0.28);
        }

        .status-finished h4,
        .status-finished .exam-info {
            opacity: 0.3;
        }

        .exam-list:not(.has-selected-card) .status-finished:hover {
            filter: grayscale(0.1);
        }

        .exam-list:not(.has-selected-card) .status-finished:hover h4,
        .exam-list:not(.has-selected-card) .status-finished:hover .exam-info,
        .status-finished.is-selected h4,
        .status-finished.is-selected .exam-info {
            opacity: 0.82;
        }

        .quiet-text {
            color: var(--quiet);
        }

        @keyframes fadeInDown {
            from {
                opacity: 0;
                translate: 0 -32px;
            }

            to {
                opacity: 1;
                translate: 0 0;
            }
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                translate: 0 40px;
            }

            to {
                opacity: 1;
                translate: 0 0;
            }
        }

        .motion-replay .page-header {
            animation: fadeInDown 0.75s ease-out both;
        }

        .motion-replay .countdown-section,
        .motion-replay .exam-card {
            animation: fadeInUp 0.75s ease-out both;
        }

        @media (max-width: 1000px) {
            :root {
                --sun-x: 58%;
                --sun-y: 34%;
                --sun-size: clamp(190px, 64vw, 280px);
                --exam-day-radius: 18px;
            }

            .countdown-timer {
                grid-template-columns: repeat(2, minmax(0, 1fr));
                grid-column: 1 / -1;
                gap: 0.65rem;
                margin-top: 1.05rem;
            }

            .countdown-section {
                display: grid;
                grid-template-columns: minmax(0, 1fr) auto;
                align-items: start;
                gap: 0 0.9rem;
                margin-left: -0.35rem;
                margin-right: -0.35rem;
                margin-bottom: 0.8rem;
                padding: 1.45rem 1rem;
            }

            .countdown-main {
                grid-column: 1;
                grid-row: 1;
                align-self: stretch;
                display: flex;
                flex-direction: column;
                margin: 0;
            }

            .countdown-head {
                display: contents;
            }

            .page-header {
                padding: 1.85rem 1rem 0.58rem;
            }

            .page-title {
                font-size: 2.6rem;
            }

            .page-subtitle {
                font-size: 0.9rem;
            }

            .countdown-label {
                font-size: 0.86rem;
            }

            .countdown-exam {
                margin-top: 0.46rem;
                font-size: 1.58rem;
            }

            .countdown-progress {
                margin-top: auto;
                font-size: 0.95rem;
            }

            .countdown-info {
                grid-column: 2;
                grid-row: 1;
                align-items: flex-end;
                flex-direction: column;
                gap: 0.35rem;
                margin: 0;
                max-width: min(54vw, 18rem);
            }

            .countdown-detail {
                gap: 0.36rem;
                max-width: 100%;
                padding: 0.34rem 0.58rem;
                font-size: 0.82rem;
                white-space: normal;
                overflow-wrap: anywhere;
            }

            .time-unit {
                padding: 0.72rem 0.65rem;
            }

            .time-value {
                margin-bottom: 0.34rem;
                font-size: 2.85rem;
            }

            .time-label {
                font-size: 0.8rem;
            }

            .exam-list {
                grid-template-columns: minmax(0, 1fr);
                gap: 0.8rem;
            }

            .exam-day-group {
                grid-column: 1 / -1;
                grid-template-columns: minmax(0, 1fr);
            }

            .exam-card {
                padding: 0.64rem 0.74rem;
            }

            .exam-card h4 {
                font-size: 0.94rem;
                line-height: 1.28;
            }

            .exam-card:not(.day-m-top) {
                margin-top: -1px;
            }

            .exam-card.day-m-top {
                border-top-color: var(--exam-day-border);
            }

            .exam-card.day-m-right {
                border-right-color: var(--exam-day-border);
            }

            .exam-card.day-m-bottom {
                border-bottom-color: var(--exam-day-border);
            }

            .exam-card.day-m-left {
                border-left-color: var(--exam-day-border);
            }

            .exam-card.day-m-tl {
                border-top-left-radius: var(--exam-day-radius);
            }

            .exam-card.day-m-tr {
                border-top-right-radius: var(--exam-day-radius);
            }

            .exam-card.day-m-br {
                border-bottom-right-radius: var(--exam-day-radius);
            }

            .exam-card.day-m-bl {
                border-bottom-left-radius: var(--exam-day-radius);
            }

            .exam-info {
                gap: 0.72rem;
                margin-top: 0.42rem;
                font-size: 0.76rem;
                overflow-x: auto;
            }

            .exam-date-item {
                display: none;
            }

            .status-finished .exam-info {
                display: none;
            }

            .exam-row {
                gap: 0.72rem;
            }

            .status-badge {
                display: flex;
                flex-direction: column;
                align-items: center;
                padding: 0.42rem 0.78rem;
                font-size: 0.72rem;
                line-height: 1.15;
                white-space: normal;
            }

            .status-date {
                display: block;
                margin-top: 0.18rem;
                font-size: 0.72rem;
                letter-spacing: 0.02em;
            }

            .status-badge.finished .status-date {
                display: none;
            }
        }