.courses-page-main {
    min-height: calc(100vh - 88px);
    background: #f8fafc;
}

.courses-page-container {
    max-width: 1240px;
}

.courses-listing-hero {
    position: relative;
    overflow: hidden;
    padding: clamp(4.8rem, 8vw, 7rem) 0 clamp(3.5rem, 6vw, 5.5rem);
    border-bottom: 1px solid rgba(10, 76, 163, 0.08);
    background:
        linear-gradient(135deg, rgba(238, 247, 252, 0.96), rgba(255, 255, 255, 0.98) 54%, rgba(232, 248, 255, 0.9)),
        radial-gradient(circle at 84% 20%, rgba(0, 167, 220, 0.14), transparent 34%);
}

.courses-listing-hero::before {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(10, 76, 163, 0.11) 1px, transparent 1px);
    background-size: 30px 30px;
    content: "";
    opacity: 0.22;
}

.courses-listing-hero__content {
    position: relative;
    max-width: 820px;
}

.courses-page-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    color: var(--oas-blue);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.courses-page-eyebrow::before {
    width: 26px;
    height: 2px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--oas-blue), var(--oas-cyan));
    content: "";
}

.courses-listing-hero h1 {
    max-width: 860px;
    margin: 1rem 0 1.1rem;
    color: var(--oas-navy);
    font-size: clamp(2.25rem, 4.8vw, 4.2rem);
    font-weight: 800;
    letter-spacing: -0.045em;
    line-height: 1.08;
}

.courses-listing-hero p {
    max-width: 720px;
    margin: 0;
    color: var(--oas-muted);
    font-size: clamp(1rem, 1.5vw, 1.12rem);
    line-height: 1.8;
}

.courses-catalog {
    padding: clamp(3.75rem, 7vw, 6.5rem) 0;
    background: linear-gradient(180deg, #fff 0%, #f4faff 100%);
}

.courses-catalog__top {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
    gap: 1.5rem;
    align-items: end;
    margin-bottom: 2rem;
}

.courses-catalog h2 {
    margin: 0.75rem 0 0;
    color: var(--oas-navy);
    font-size: clamp(1.85rem, 3vw, 2.65rem);
    font-weight: 800;
    letter-spacing: -0.04em;
}

.course-filter-tabs {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 0.65rem;
}

.course-filter-tab {
    min-height: 44px;
    padding: 0.7rem 1rem;
    border: 1px solid rgba(10, 76, 163, 0.15);
    border-radius: 0.85rem;
    color: var(--oas-blue);
    background: rgba(255, 255, 255, 0.88);
    box-shadow: 0 8px 20px rgba(7, 47, 114, 0.06);
    font: inherit;
    font-size: 0.84rem;
    font-weight: 750;
    transition: border-color 180ms ease, box-shadow 180ms ease, color 180ms ease, background 180ms ease, transform 180ms ease;
}

.course-filter-tab:hover,
.course-filter-tab:focus-visible,
.course-filter-tab.is-active {
    border-color: transparent;
    color: #fff;
    background: linear-gradient(135deg, var(--oas-navy), var(--oas-blue) 58%, var(--oas-cyan));
    box-shadow: 0 12px 24px rgba(10, 76, 163, 0.2);
    transform: translateY(-1px);
}

.courses-card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.35rem;
}

.listing-course-card {
    display: flex;
    min-width: 0;
    overflow: hidden;
    flex-direction: column;
    border: 1px solid rgba(10, 76, 163, 0.12);
    border-radius: 1.35rem;
    background: #fff;
    box-shadow: 0 18px 45px rgba(7, 47, 114, 0.09);
    transition: border-color 240ms ease, box-shadow 240ms ease, transform 240ms ease;
}

.listing-course-card:hover,
.listing-course-card:focus-within {
    border-color: rgba(0, 167, 220, 0.32);
    box-shadow: 0 28px 58px rgba(7, 47, 114, 0.15);
    transform: translateY(-6px);
}

.listing-course-card[hidden] {
    display: none;
}

.listing-course-card__image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: var(--oas-navy);
}

.listing-course-card__image::after {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 48%, rgba(5, 35, 84, 0.28));
    content: "";
    pointer-events: none;
}

.listing-course-card__image img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 600ms cubic-bezier(.2, .7, .2, 1);
}

.listing-course-card:hover .listing-course-card__image img {
    transform: scale(1.045);
}

.listing-course-card__badge {
    position: absolute;
    right: 1rem;
    bottom: 1rem;
    z-index: 1;
    display: inline-grid;
    gap: 0.12rem;
    max-width: calc(100% - 2rem);
    padding: 0.46rem 0.72rem;
    border: 1px solid rgba(255, 255, 255, 0.32);
    border-radius: 999px;
    color: #fff;
    background: rgba(7, 47, 114, 0.82);
    font-size: 0.64rem;
    font-weight: 850;
    letter-spacing: 0.09em;
    line-height: 1.2;
    text-align: center;
}

.listing-course-card__badge--vip {
    min-width: 124px;
    padding: 0.56rem 0.82rem;
    border-radius: 1rem;
    background: rgba(10, 76, 163, 0.88);
    box-shadow: 0 12px 26px rgba(7, 47, 114, 0.24);
}

.listing-course-card__badge--vip span {
    font-size: 0.78rem;
    letter-spacing: 0.14em;
}

.listing-course-card__badge--offer {
    background: rgba(0, 126, 157, 0.9);
}

.listing-course-card__body {
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 1.35rem;
}

.listing-course-card h3 {
    margin: 0;
    color: var(--oas-navy);
    font-size: 1.18rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    line-height: 1.35;
}

.listing-course-card__description {
    margin: 0.72rem 0 1.1rem;
    color: var(--oas-muted);
    font-size: 0.86rem;
    line-height: 1.7;
}

.listing-course-section {
    margin: 0 0 1.15rem;
}

.listing-course-section h4 {
    margin: 0 0 0.72rem;
    color: var(--oas-blue);
    font-size: 0.74rem;
    font-weight: 850;
    letter-spacing: 0.08em;
    line-height: 1.35;
    text-transform: uppercase;
}

.listing-course-features {
    display: grid;
    gap: 0.55rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.listing-course-features li {
    display: grid;
    grid-template-columns: 24px minmax(0, 1fr);
    gap: 0.55rem;
    align-items: start;
    color: #435067;
    font-size: 0.82rem;
    font-weight: 650;
    line-height: 1.45;
}

.listing-course-features span {
    display: grid;
    width: 22px;
    height: 22px;
    place-items: center;
    border-radius: 50%;
    color: #fff;
    background: linear-gradient(135deg, var(--oas-blue), var(--oas-cyan));
}

.listing-course-features svg {
    width: 14px;
    height: 14px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 2.4;
}

.listing-course-meta {
    display: grid;
    gap: 0.75rem;
    margin-top: auto;
    padding: 1rem;
    border: 1px solid rgba(10, 76, 163, 0.09);
    border-radius: 1rem;
    background: #f7fbff;
}

.listing-course-meta div {
    display: grid;
    gap: 0.2rem;
}

.listing-course-meta span {
    color: var(--oas-blue);
    font-size: 0.68rem;
    font-weight: 850;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.listing-course-meta strong {
    color: var(--oas-ink);
    font-size: 0.84rem;
    font-weight: 750;
    line-height: 1.45;
}

.listing-course-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
}

.listing-course-tags strong {
    display: inline-flex;
    min-height: 28px;
    align-items: center;
    padding: 0.3rem 0.58rem;
    border: 1px solid rgba(10, 76, 163, 0.12);
    border-radius: 999px;
    background: #fff;
    color: #435067;
    font-size: 0.76rem;
    line-height: 1;
}

.listing-course-button {
    display: inline-flex;
    min-height: 46px;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    margin-top: 1rem;
    padding: 0.78rem 1rem;
    border-radius: 0.85rem;
    color: #fff;
    background: linear-gradient(135deg, var(--oas-navy), var(--oas-blue) 58%, var(--oas-cyan));
    box-shadow: 0 12px 24px rgba(10, 76, 163, 0.2);
    font-size: 0.86rem;
    font-weight: 800;
    text-decoration: none;
    transition: box-shadow 180ms ease, transform 180ms ease;
}

.listing-course-button svg {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 1.8;
    transition: transform 180ms ease;
}

.listing-course-button:hover,
.listing-course-button:focus-visible {
    color: #fff;
    box-shadow: 0 16px 30px rgba(10, 76, 163, 0.28);
    transform: translateY(-2px);
}

.listing-course-button:hover svg,
.listing-course-button:focus-visible svg {
    transform: translateX(3px);
}

.courses-pagination {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    margin-top: 2.4rem;
}

.courses-pagination__pages {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.45rem;
}

.courses-pagination__control,
.courses-pagination__page {
    display: inline-flex;
    min-width: 42px;
    min-height: 42px;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(10, 76, 163, 0.14);
    border-radius: 0.8rem;
    color: var(--oas-blue);
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 8px 20px rgba(7, 47, 114, 0.06);
    font-size: 0.82rem;
    font-weight: 800;
    text-decoration: none;
    transition: border-color 180ms ease, box-shadow 180ms ease, color 180ms ease, background 180ms ease, transform 180ms ease;
}

.courses-pagination__control {
    padding: 0 1rem;
}

.courses-pagination__control:hover,
.courses-pagination__control:focus-visible,
.courses-pagination__page:hover,
.courses-pagination__page:focus-visible,
.courses-pagination__page.is-active {
    border-color: transparent;
    color: #fff;
    background: linear-gradient(135deg, var(--oas-navy), var(--oas-blue) 58%, var(--oas-cyan));
    box-shadow: 0 12px 24px rgba(10, 76, 163, 0.2);
    transform: translateY(-1px);
}

.courses-pagination__control.is-disabled {
    cursor: not-allowed;
    opacity: 0.48;
    transform: none;
}

.course-detail-hero {
    padding: clamp(2.8rem, 6vw, 0.5rem) 0;
    background: linear-gradient(180deg, #eef7fc 0%, #fff 100%);
}

.course-detail-back {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    margin-bottom: 1.2rem;
    color: var(--oas-blue);
    font-size: 0.9rem;
    font-weight: 800;
    text-decoration: none;
}

.course-detail-back svg {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
    stroke-width: 2;
}

.course-detail-shell {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(360px, 0.82fr);
    gap: clamp(1.4rem, 3vw, 2.4rem);
    align-items: stretch;
}

.course-detail-media {
    position: relative;
    overflow: hidden;
    min-height: 360px;
    border-radius: 1.35rem;
    background: var(--oas-navy);
    box-shadow: 0 28px 58px rgba(7, 47, 114, 0.14);
}

.course-detail-media img {
    width: 100%;
    height: 100%;
    min-height: 360px;
    object-fit: cover;
}

.course-detail-media span {
    position: absolute;
    right: 1rem;
    bottom: 1rem;
    padding: 0.56rem 0.82rem;
    border: 1px solid rgba(255, 255, 255, 0.32);
    border-radius: 1rem;
    color: #fff;
    background: rgba(10, 76, 163, 0.88);
    font-size: 0.78rem;
    font-weight: 850;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.course-detail-summary {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: clamp(1.5rem, 4vw, 2.2rem);
    border: 1px solid rgba(10, 76, 163, 0.1);
    border-radius: 1.35rem;
    background: #fff;
    box-shadow: 0 18px 45px rgba(7, 47, 114, 0.08);
}

.course-detail-summary h1 {
    margin: 0.8rem 0 0;
    color: var(--oas-navy);
    font-size: clamp(2rem, 4vw, 3.4rem);
    font-weight: 850;
    letter-spacing: -0.04em;
    line-height: 1.08;
}

.course-detail-lead {
    margin: 1rem 0 0;
    color: var(--oas-muted);
    font-size: 1rem;
    line-height: 1.75;
}

.course-detail-price {
    display: grid;
    gap: 0.2rem;
    margin: 1.25rem 0;
    padding: 1rem;
    border-radius: 1rem;
    background: #f7fbff;
}

.course-detail-price span,
.course-detail-specs span,
.course-detail-facts dt {
    color: var(--oas-blue);
    font-size: 0.68rem;
    font-weight: 850;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.course-detail-price strong {
    color: var(--oas-navy);
    font-size: 1.45rem;
    font-weight: 850;
}

.course-detail-price small {
    color: #64748b;
    font-size: 0.84rem;
    font-weight: 700;
}

.course-detail-specs,
.course-detail-facts {
    display: grid;
    gap: 0.75rem;
}

.course-detail-specs div,
.course-detail-facts div {
    display: grid;
    gap: 0.2rem;
}

.course-detail-specs strong,
.course-detail-facts dd {
    margin: 0;
    color: var(--oas-ink);
    font-size: 0.9rem;
    font-weight: 750;
    line-height: 1.45;
}

.course-detail-content,
.available-batches-section {
    padding-bottom: 2rem;
    background: #fff;
}

.course-detail-grid-public {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(290px, 0.36fr);
    gap: 1.35rem;
    align-items: start;
}

.course-detail-panel,
.available-batch-card,
.course-detail-empty {
    border: 1px solid rgba(10, 76, 163, 0.1);
    border-radius: 1.25rem;
    background: #fff;
    box-shadow: 0 18px 45px rgba(7, 47, 114, 0.08);
}

.course-detail-panel {
    padding: clamp(1.35rem, 3vw, 2rem);
}

.course-detail-panel h2,
.available-batches-heading h2 {
    margin: 0;
    color: var(--oas-navy);
    font-size: clamp(1.5rem, 2.7vw, 2.2rem);
    font-weight: 850;
    letter-spacing: -0.035em;
}

.course-detail-description {
    margin-top: 1rem;
    color: #435067;
    line-height: 1.8;
}

.course-detail-description p:last-child {
    margin-bottom: 0;
}

.course-detail-block {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(10, 76, 163, 0.1);
}

.course-detail-block h3 {
    margin: 0 0 0.9rem;
    color: var(--oas-navy);
    font-size: 1.05rem;
    font-weight: 850;
}

.course-detail-list {
    display: grid;
    gap: 0.6rem;
    margin: 0;
    padding-left: 1.1rem;
    color: #435067;
    font-weight: 650;
}

.public-curriculum-list {
    display: grid;
    gap: 0.9rem;
}

.public-curriculum-module {
    padding: 1rem;
    border: 1px solid rgba(10, 76, 163, 0.1);
    border-radius: 1rem;
    background: #f8fbff;
}

.public-curriculum-module span {
    color: var(--oas-blue);
    font-size: 0.7rem;
    font-weight: 850;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.public-curriculum-module h4 {
    margin: 0.25rem 0 0;
    color: var(--oas-navy);
    font-size: 1rem;
    font-weight: 850;
}

.public-curriculum-module p {
    margin: 0.5rem 0 0;
    color: var(--oas-muted);
    font-size: 0.88rem;
    line-height: 1.6;
}

.public-curriculum-module ul {
    display: grid;
    gap: 0.45rem;
    margin: 0.85rem 0 0;
    padding: 0;
    list-style: none;
}

.public-curriculum-module li {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.65rem 0.75rem;
    border-radius: 0.75rem;
    background: #fff;
    color: #334155;
    font-size: 0.86rem;
    font-weight: 700;
}

.public-curriculum-module small {
    color: #64748b;
    white-space: nowrap;
}

.course-detail-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin-top: 1.2rem;
}

.course-detail-tags span {
    display: inline-flex;
    min-height: 28px;
    align-items: center;
    padding: 0.3rem 0.58rem;
    border: 1px solid rgba(10, 76, 163, 0.12);
    border-radius: 999px;
    background: #f7fbff;
    color: #435067;
    font-size: 0.76rem;
    font-weight: 750;
}

.available-batches-section {
    background: linear-gradient(180deg, #fff 0%, #f4faff 100%);
}

.available-batches-heading {
    margin-bottom: 1.5rem;
}

.available-batches-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
}

.available-batch-card {
    display: flex;
    min-width: 0;
    flex-direction: column;
    padding: 1.2rem;
}

.available-batch-card__top span {
    color: var(--oas-blue);
    font-size: 0.72rem;
    font-weight: 850;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.available-batch-card__top h3 {
    margin: 0.45rem 0 0;
    color: var(--oas-navy);
    font-size: 1.12rem;
    font-weight: 850;
    line-height: 1.35;
}

.available-batch-specs {
    display: grid;
    gap: 0.65rem;
    margin: 1rem 0;
}

.available-batch-specs div {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding-bottom: 0.65rem;
    border-bottom: 1px solid rgba(10, 76, 163, 0.08);
}

.available-batch-specs dt {
    color: #64748b;
    font-size: 0.8rem;
    font-weight: 750;
}

.available-batch-specs dd {
    margin: 0;
    color: var(--oas-ink);
    font-size: 0.86rem;
    font-weight: 800;
    text-align: right;
}

.available-batch-button {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    margin-top: auto;
    border-radius: 0.85rem;
    color: #fff;
    background: linear-gradient(135deg, var(--oas-navy), var(--oas-blue) 58%, var(--oas-cyan));
    box-shadow: 0 12px 24px rgba(10, 76, 163, 0.2);
    font-size: 0.86rem;
    font-weight: 850;
    text-decoration: none;
}

.course-detail-empty {
    padding: 1.4rem;
}

.course-detail-empty h3 {
    margin: 0 0 0.35rem;
    color: var(--oas-navy);
    font-size: 1.1rem;
    font-weight: 850;
}

.course-detail-empty p {
    margin: 0;
    color: var(--oas-muted);
}

@media (max-width: 1199.98px) {
    .courses-catalog__top {
        grid-template-columns: 1fr;
        align-items: start;
    }

    .course-filter-tabs {
        justify-content: flex-start;
    }

    .courses-card-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .course-detail-shell,
    .course-detail-grid-public {
        grid-template-columns: 1fr;
    }

    .available-batches-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 767.98px) {
    .courses-page-container {
        padding-right: 1.1rem;
        padding-left: 1.1rem;
    }

    .courses-listing-hero {
        padding-top: 4rem;
    }

    .course-filter-tabs {
        display: grid;
        grid-template-columns: 1fr;
    }

    .course-filter-tab {
        width: 100%;
    }

    .courses-card-grid {
        grid-template-columns: 1fr;
    }

    .listing-course-card__body {
        padding: 1.25rem;
    }

    .course-detail-media,
    .course-detail-media img {
        min-height: 240px;
    }

    .available-batches-grid {
        grid-template-columns: 1fr;
    }

    .public-curriculum-module li,
    .available-batch-specs div {
        align-items: flex-start;
        flex-direction: column;
        gap: 0.25rem;
    }

    .available-batch-specs dd {
        text-align: left;
    }
}

@media (prefers-reduced-motion: reduce) {

    .course-filter-tab,
    .listing-course-card,
    .listing-course-card__image img,
    .listing-course-button,
    .listing-course-button svg {
        transition: none;
    }
}