:root {
    --bg-1: #fff8fb;
    /* very light pink */
    --pink: #ffd6e0;
    --lilac: #efe6ff;
    --yellow: #fff7cc;
    --green: #e6fff0;
    --blue: #e6f7ff;
    --card: #ffffff;
    --text: #1f2937;
}

* {
    box-sizing: border-box
}

body {
    margin: 0;
    min-height: 100vh;
    background: linear-gradient(135deg, rgba(255, 214, 224, 0.20), rgba(239, 230, 255, 0.14), rgba(230, 255, 240, 0.10), rgba(230, 247, 255, 0.12));
    font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
    color: var(--text);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 0rem 2rem 2rem 2rem;
    overflow-x: hidden;
}

.container {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center
}

.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 1rem;
    margin-bottom: 1rem;
    width: 100%
}

.card {
    background: var(--card);
    border-radius: 14px;
    padding: 1.25rem;
    box-shadow: 0 8px 24px rgba(31, 41, 55, 0.06);
    border: 1px solid rgba(31, 41, 55, 0.04);
    width: clamp(320px, 85vw, 900px);
    max-width: 900px;
}

h1 {
    font-size: 1.6rem;
    margin: 0
}

.meta {
    font-size: 0.95rem;
    color: rgba(31, 41, 55, 0.75)
}

.badge {
    background: linear-gradient(90deg, var(--pink), var(--blue));
    color: var(--text);
    padding: 0.35rem 0.7rem;
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.85rem
}

.page-banner {
    width: 100vw;
    background: rgba(255, 255, 255, 0.72);
    padding: 1rem 0;
    border-radius: 0 0 12px 12px;
    box-shadow: 0 6px 18px rgba(31, 41, 55, 0.04);
    color: var(--text);
    border-bottom: 1px solid rgba(31, 41, 55, 0.03);
}

.page-banner h1 {
    margin: 0;
    font-size: 1.25rem;
    text-align: center
}

.page-banner .meta {
    opacity: 0.95;
    text-align: center;
    margin-top: 0.25rem
}

.page-switch {
    margin-top: 0.75rem;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.9rem;
    color: rgba(31, 41, 55, 0.8)
}

.switch {
    position: relative;
    width: 52px;
    height: 28px;
    display: inline-block
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0
}

.slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: rgba(31, 41, 55, 0.15);
    border-radius: 999px;
    transition: background 200ms ease
}

.slider::before {
    content: "";
    position: absolute;
    height: 22px;
    width: 22px;
    left: 3px;
    top: 3px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    transition: transform 200ms ease
}

.switch input:checked + .slider {
    background: rgba(111, 99, 255, 0.45)
}

.switch input:checked + .slider::before {
    transform: translateX(24px)
}

.video-wrap {
    margin-top: 1rem;
    border-radius: 14px;
    overflow: hidden;
    height: 70vh;
    background: #fff;
    box-shadow: 0 10px 24px rgba(31, 41, 55, 0.08);
}

.video-wrap.compact {
    height: 40vh;
}

.video-wrap video {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
    border-radius: 14px;
}

.video-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.video-block {
    display: flex;
    flex-direction: column;
    gap: 0.5rem
}

.video-caption {
    font-size: 0.92rem;
    color: rgba(31, 41, 55, 0.78);
    margin: 0
}

@media (max-width:480px) {
    .video-wrap {
        height: 55vh
    }

    .video-row {
        grid-template-columns: 1fr
    }
}

/* Tasks list */
.tasks {
    margin-top: 1.25rem;
    display: flex;
    gap: 1rem;
    align-items: stretch;
    width: 100%;
    max-width: 900px;
}

.task-stack {
    margin-top: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: stretch;
    width: 100%;
    max-width: 900px;
}

.task-panel {
    background: var(--card);
    border-radius: 16px;
    border: 1px solid rgba(31, 41, 55, 0.08);
    box-shadow: 0 12px 26px rgba(31, 41, 55, 0.08);
    padding: 1.4rem 1.6rem;
    transition: transform 160ms ease, box-shadow 160ms ease;
}

.task-panel:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 30px rgba(31, 41, 55, 0.12);
}

.panel-body {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
    align-items: flex-start;
}

.panel-body p {
    margin: 0;
    line-height: 1.45;
}

.panel-body table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
    margin-top: 0.4rem;
}

.task-image {
    width: 100%;
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 10px 24px rgba(31, 41, 55, 0.12);
    border: 1px solid rgba(31, 41, 55, 0.1);
}

.panel-body th,
.panel-body td {
    border: 1px solid rgba(31, 41, 55, 0.15);
    padding: 0.5rem 0.6rem;
    text-align: left;
    vertical-align: top;
}

.panel-body thead th {
    background: rgba(17, 24, 39, 0.04);
    font-weight: 700;
}

.panel-body tbody tr:nth-child(even) {
    background: rgba(17, 24, 39, 0.02);
}

.panel-body h2 {
    margin: 0;
    font-size: 1.2rem;
}

.panel-actions {
    margin: 0.2rem 0 0.4rem;
    width: 100%;
    display: flex;
    justify-content: flex-start;
    gap: 0.75rem;
}

.panel-button {
    border: none;
    background: linear-gradient(120deg, #fce7f3, #dbeafe);
    color: #111827;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.75rem 1.2rem;
    border-radius: 999px;
    cursor: pointer;
    box-shadow: 0 6px 14px rgba(31, 41, 55, 0.12);
    transition: transform 150ms ease, box-shadow 150ms ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.panel-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 18px rgba(31, 41, 55, 0.18);
}

.link-button {
    margin-top: 0.75rem;
    font-size: 0.92rem;
    padding: 0.6rem 1.05rem;
    border: 1px solid rgba(31, 41, 55, 0.12);
    background: linear-gradient(135deg, rgba(219, 234, 254, 0.8), rgba(252, 231, 243, 0.9));
    color: #0f172a;
    text-decoration: none;
    box-shadow: 0 10px 22px rgba(15, 23, 42, 0.12);
    gap: 0.45rem;
}

.link-button:hover {
    transform: translateY(-1px) scale(1.01);
    box-shadow: 0 16px 30px rgba(15, 23, 42, 0.18);
}

.link-button:focus-visible {
    outline: 2px solid rgba(37, 99, 235, 0.6);
    outline-offset: 2px;
}

.task {
    display: flex;
    gap: 1rem;
    align-items: center;
    border-radius: 10px;
    background: white;
    border: 1px solid rgba(31, 41, 55, 0.03);
    opacity: 0;
    transform: translateY(20px);
    transition: all 600ms cubic-bezier(.2, .9, .3, 1);
    width: 100%;
    min-height: 0;
    flex: 1 1 0;
    justify-content: center;
}

.task.card {
    padding: 0;
}

.task.visible {
    opacity: 1;
    transform: none
}

.content {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 2rem;
}

.button-row {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.25rem;
    margin-top: 0.75rem;
}

.content h3 {
    margin: 0 0 0.25rem 0;
    font-size: 1.05rem
}

.content p {
    margin: 0;
    color: rgba(31, 41, 55, 0.75)
}

.page-footer {
    text-align: center;
    margin-top: 2rem;
    color: rgba(31, 41, 55, 0.8);
    font-size: 0.95rem;
}

.content a {
    display: inline-block;
    color: #1f2937;
    text-decoration: none;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(31, 41, 55, 0.15);
    padding: 1.2rem 2.2rem;
    border-radius: 10px;
    box-shadow: 0 6px 16px rgba(31, 41, 55, 0.06);
    transition: transform 150ms ease, box-shadow 150ms ease;
    font-size: 1.3rem;
    font-weight: 600;
}

.content a:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 20px rgba(31, 41, 55, 0.12);
}

.modal {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    z-index: 1000;
}

.modal.is-open {
    display: flex;
}

.modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.6);
}

.modal-content {
    position: relative;
    width: min(960px, 96vw);
    max-height: 90vh;
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.22);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-close {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    border: none;
    background: rgba(17, 24, 39, 0.08);
    color: #111827;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
}

.modal-frame {
    width: 100%;
    height: 80vh;
}

.modal-frame iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
}

.modal-open {
    overflow: hidden;
}

@media (max-width:640px) {
    body {
        padding: 1rem
    }

    .hero {
        flex-direction: column;
        align-items: flex-start
    }
}