:root {
    --zqs-green: #008080;
    --zqs-green-dark: #006b6b;
    --zqs-ink: #172033;
    --zqs-muted: #5f6b7a;
    --zqs-border: #e2e7ee;
    --zqs-soft: #f5f8fb;
    --zqs-white: #fff;
    --zqs-shadow: 0 12px 32px rgba(23, 32, 51, .10);
}

.zqs-course-page,
.zqs-course-page * {
    box-sizing: border-box;
}

.zqs-course-page {
    color: var(--zqs-ink);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: #fff;
    line-height: 1.6;
    font-size: 15px;
}

.zqs-container {
    width: min(1180px, calc(100% - 40px));
    margin: 0 auto;
}

.zqs-course-hero {
    background: linear-gradient(135deg, #f2f7ff 0%, #ffffff 62%);
    border-bottom: 1px solid var(--zqs-border);
    padding: 54px 0 46px;
}

.zqs-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 56px;
    align-items: center;
}

.zqs-category {
    display: inline-flex;
    padding: 5px 10px;
    border-radius: 999px;
    background: #eaf7ef;
    color: var(--zqs-green-dark);
    font-size: 12px;
    font-weight: 700;
    margin-bottom: 16px;
}

.zqs-hero-copy h1 {
    font-size: clamp(34px, 4vw, 52px);
    line-height: 1.08;
    letter-spacing: -1.8px;
    margin: 0 0 12px;
    max-width: 780px;
}

.zqs-subtitle {
    font-size: clamp(18px, 2vw, 23px);
    color: #334155;
    margin: 0 0 20px;
    font-weight: 500;
}

.zqs-description {
    max-width: 760px;
    color: var(--zqs-muted);
    font-size: 16px;
}

.zqs-description p {
    margin: 0 0 8px;
}

.zqs-rating-row {
    display: flex;
    align-items: center;
    gap: 9px;
    margin-top: 22px;
    font-size: 14px;
    color: var(--zqs-muted);
}

.zqs-stars {
    color: #e99b00;
    letter-spacing: 1px;
    white-space: nowrap;
}

.zqs-star-empty {
    color: #d7dde5;
}

.zqs-star-half {
    opacity: .65;
}

.zqs-enrollment-card {
    background: #fff;
    border: 1px solid var(--zqs-border);
    box-shadow: var(--zqs-shadow);
    border-radius: 12px;
    padding: 24px;
}

.zqs-hero-image {
    margin: -24px -24px 22px;
    overflow: hidden;
    border-radius: 12px 12px 0 0;
    aspect-ratio: 16 / 9;
    background: #eef2f6;
}

.zqs-hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.zqs-price {
    display: flex;
    align-items: baseline;
    gap: 12px;
    margin-bottom: 18px;
}

.zqs-current-price {
    font-size: 30px;
    font-weight: 800;
    letter-spacing: -.5px;
}

.zqs-price del {
    color: #8791a0;
}

.zqs-primary-button {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    min-height: 48px;
    padding: 12px 18px;
    border-radius: 7px;
    background: var(--zqs-green);
    color: #fff !important;
    text-decoration: none !important;
    font-weight: 750;
    transition: transform .18s ease, background .18s ease;
}

.zqs-primary-button:hover {
    background: var(--zqs-green-dark);
    transform: translateY(-1px);
}

.zqs-enrollment-meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid var(--zqs-border);
}

.zqs-enrollment-meta div {
    display: flex;
    flex-direction: column;
}

.zqs-enrollment-meta strong {
    font-size: 14px;
}

.zqs-enrollment-meta span {
    color: var(--zqs-muted);
    font-size: 12px;
}

.zqs-stat-bar {
    background: #fff;
    border-bottom: 1px solid var(--zqs-border);
}

.zqs-stat-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
}

.zqs-stat {
    padding: 18px 20px;
    border-right: 1px solid var(--zqs-border);
    min-height: 70px;
}

.zqs-stat:first-child {
    padding-left: 0;
}

.zqs-stat:last-child {
    border-right: 0;
}

.zqs-stat strong,
.zqs-stat span {
    display: block;
}

.zqs-stat strong {
    font-size: 14px;
}

.zqs-stat span {
    color: var(--zqs-muted);
    font-size: 11px;
    margin-top: 2px;
}

.zqs-anchor-nav {
    position: sticky;
    top: 0;
    z-index: 20;
    background: rgba(255,255,255,.96);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--zqs-border);
}

.zqs-anchor-inner {
    display: flex;
    gap: 26px;
    overflow-x: auto;
    scrollbar-width: none;
}

.zqs-anchor-inner::-webkit-scrollbar {
    display: none;
}

.zqs-anchor-inner a {
    position: relative;
    flex: 0 0 auto;
    padding: 16px 0 14px;
    color: #344054;
    text-decoration: none;
    font-size: 13px;
    font-weight: 700;
}

.zqs-anchor-inner a:hover {
    color: var(--zqs-green-dark);
}

.zqs-anchor-inner a.is-current {
    color: var(--zqs-green-dark);
}

.zqs-anchor-inner a.is-current::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 3px;
    border-radius: 3px 3px 0 0;
    background: var(--zqs-green);
}

.zqs-content-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 290px;
    gap: 70px;
    padding-top: 45px;
    padding-bottom: 70px;
}

.zqs-main-content {
    min-width: 0;
}

.zqs-sidebar {
    position: relative;
}

.zqs-sidebar-card {
    position: sticky;
    top: 75px;
    border: 1px solid var(--zqs-border);
    border-radius: 10px;
    padding: 22px;
    background: #fff;
    box-shadow: 0 7px 22px rgba(23,32,51,.06);
}

.zqs-sidebar-label,
.zqs-section-kicker {
    color: var(--zqs-green-dark);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.zqs-sidebar-card h3 {
    margin: 8px 0 18px;
    font-size: 19px;
    line-height: 1.3;
}

.zqs-sidebar-price {
    text-align: center;
    margin-top: 12px;
    font-size: 13px;
    color: var(--zqs-muted);
}

.zqs-section {
    scroll-margin-top: 75px;
    padding: 0 0 48px;
    margin-bottom: 8px;
    border-bottom: 1px solid var(--zqs-border);
}

.zqs-section + .zqs-section {
    padding-top: 48px;
}

.zqs-section h2 {
    font-size: 26px;
    line-height: 1.2;
    margin: 8px 0 17px;
    letter-spacing: -.5px;
}

.zqs-section h3 {
    font-size: 18px;
    margin: 28px 0 12px;
}

.zqs-section p {
    color: #4b5565;
    max-width: 800px;
}

.zqs-check-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px 32px;
}

.zqs-check-list li {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    color: #354052;
}

.zqs-check {
    flex: 0 0 auto;
    width: 20px;
    height: 20px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: #eaf7ef;
    color: var(--zqs-green-dark);
    font-size: 12px;
    font-weight: 800;
    margin-top: 2px;
}

.zqs-tabs {
    margin-top: 26px;
    border: 1px solid var(--zqs-border);
    border-radius: 10px;
    overflow: hidden;
    background: #fff;
}

.zqs-tab-buttons {
    display: flex;
    overflow-x: auto;
    background: #f8fafc;
    border-bottom: 1px solid var(--zqs-border);
    scrollbar-width: none;
}

.zqs-tab-buttons::-webkit-scrollbar {
    display: none;
}

.zqs-tab-button {
    position: relative;
    flex: 0 0 auto;
    border: 0;
    background: transparent;
    color: #fff!important;
    padding: 16px 18px;
    font: inherit;
    font-size: 13px;
    font-weight: 750;
    cursor: pointer;
}

.zqs-tab-button.is-active {
    color: var(--zqs-green-dark);
    background: #fff;
}

.zqs-tab-button.is-active::after {
    content: "";
    position: absolute;
    left: 18px;
    right: 18px;
    bottom: -1px;
    height: 3px;
    background: var(--zqs-green);
}

.zqs-tab-panels {
    padding: 25px;
}

.zqs-tab-panel[hidden] {
    display: none;
}

.zqs-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.zqs-pill {
    padding: 6px 11px;
    border-radius: 999px;
    background: #edf2f7;
    color: #3d4a5c;
    font-size: 12px;
    font-weight: 650;
}

.zqs-detail-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.zqs-detail-item {
    display: grid;
    grid-template-columns: 34px 1fr;
    column-gap: 10px;
    align-items: center;
}

.zqs-detail-icon {
    grid-row: span 2;
    width: 34px;
    height: 34px;
    border: 1px solid var(--zqs-border);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--zqs-green-dark);
    font-weight: 800;
}

.zqs-detail-item strong,
.zqs-detail-item > span:last-child {
    font-size: 13px;
}

.zqs-detail-item > span:last-child {
    color: var(--zqs-muted);
}

.zqs-faq-list details {
    border-top: 1px solid var(--zqs-border);
    padding: 17px 0;
}

.zqs-faq-list details:last-child {
    border-bottom: 1px solid var(--zqs-border);
}

.zqs-faq-list summary {
    cursor: pointer;
    font-weight: 700;
}

.zqs-faq-list details div {
    color: var(--zqs-muted);
    padding-top: 10px;
}

.zqs-admin-notice {
    padding: 18px;
    background: #fff8e6;
    border: 1px solid #f0d58c;
    color: #5b4714;
}

@media (max-width: 900px) {
    .zqs-hero-grid,
    .zqs-content-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .zqs-enrollment-card {
        max-width: 520px;
    }

    .zqs-sidebar {
        display: none;
    }

    .zqs-stat-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .zqs-stat:nth-child(3) {
        border-right: 0;
    }
}

@media (max-width: 650px) {
    .zqs-container {
        width: min(100% - 28px, 1180px);
    }

    .zqs-course-hero {
        padding: 32px 0;
    }

    .zqs-hero-copy h1 {
        font-size: 32px;
        letter-spacing: -1px;
    }

    .zqs-subtitle {
        font-size: 18px;
    }

    .zqs-description {
        font-size: 14px;
    }

    .zqs-stat-grid {
        grid-template-columns: 1fr 1fr;
    }

    .zqs-stat {
        padding: 14px 12px;
        border-right: 1px solid var(--zqs-border);
        border-bottom: 1px solid var(--zqs-border);
    }

    .zqs-stat:first-child {
        padding-left: 12px;
    }

    .zqs-stat:nth-child(2n) {
        border-right: 0;
    }

    .zqs-check-list {
        grid-template-columns: 1fr;
    }

    .zqs-tab-buttons {
        flex-direction: column;
    }

    .zqs-tab-button {
        text-align: left;
        width: 100%;
        border-bottom: 1px solid var(--zqs-border);
    }

    .zqs-tab-button.is-active::after {
        left: 0;
        right: auto;
        top: 0;
        bottom: 0;
        width: 3px;
        height: auto;
    }

    .zqs-tab-panels {
        padding: 20px;
    }

    .zqs-detail-grid {
        grid-template-columns: 1fr;
    }

    .zqs-section h2 {
        font-size: 23px;
    }
}

/* Brand-color tab interaction */
.zqs-tab-button:hover { background:#008080; color:#fff; }
.zqs-tab-button.is-active:hover { background:#008080; color:#fff; }
.zqs-tab-button:focus-visible { outline:2px solid #008080; outline-offset:-2px; }