.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.courses-hero {
    position: relative;
    overflow: hidden;
    padding-block: clamp(58px, 7vw, 92px);
    border-bottom: 1px solid var(--line);
    background: linear-gradient(135deg, var(--bg) 32%, #e7f4f1 100%);
}

.courses-hero::before {
    content: "";
    position: absolute;
    right: -16vw;
    bottom: -38vw;
    width: 62vw;
    height: 62vw;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(74, 181, 169, .15), transparent 68%);
    pointer-events: none;
}

.courses-hero-inner {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(340px, .85fr);
    align-items: end;
    gap: clamp(40px, 7vw, 88px);
}

.courses-intro h1 {
    max-width: 15ch;
}

.courses-intro > p {
    max-width: 68ch;
    margin-bottom: 0;
    font-size: clamp(1rem, 1.5vw, 1.12rem);
}

.catalog-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin: 0;
}

.catalog-stat {
    min-width: 0;
    padding: 18px 16px;
    border: 1px solid #cfe1de;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, .78);
    box-shadow: 0 8px 24px rgba(14, 58, 60, .05);
}

.catalog-stat dd,
.catalog-stat dt {
    margin: 0;
}

.catalog-stat dd {
    color: var(--brand-dark);
    font-size: clamp(1.45rem, 3vw, 2rem);
    font-weight: 800;
    line-height: 1.1;
}

.catalog-stat dt {
    margin-top: 5px;
    color: var(--muted);
    font-size: .74rem;
    line-height: 1.35;
}

.area-explorer {
    padding-block: clamp(52px, 7vw, 82px);
    border-bottom: 1px solid var(--line);
    background: var(--surface);
}

.area-explorer-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 36px;
    margin-bottom: 28px;
}

.area-explorer-heading h2 {
    max-width: 630px;
    margin-bottom: 0;
    font-size: clamp(1.8rem, 3vw, 2.65rem);
}

.area-explorer-heading .eyebrow {
    margin-bottom: 10px;
}

.area-explorer-heading > p {
    max-width: 48ch;
    margin-bottom: 5px;
    font-size: .94rem;
}

.area-selector {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.area-option {
    display: flex;
    min-width: 0;
    min-height: 78px;
    align-items: center;
    gap: 13px;
    padding: 14px 16px;
    border: 1px solid var(--line);
    border-radius: 16px;
    color: var(--ink);
    background: #fbfdfc;
    text-align: left;
    cursor: pointer;
    transition: border-color .2s ease, background .2s ease, box-shadow .2s ease, transform .2s ease;
}

.area-option:hover {
    border-color: #acd0cb;
    background: var(--surface-soft);
    transform: translateY(-2px);
}

.area-option[aria-pressed="true"] {
    border-color: var(--brand);
    background: #e6f4f1;
    box-shadow: 0 8px 22px rgba(20, 124, 114, .09);
}

.area-option-icon {
    display: grid;
    width: 38px;
    height: 38px;
    flex: 0 0 auto;
    place-items: center;
    border: 1px solid #d3e7e3;
    border-radius: 11px;
    color: var(--brand-dark);
    background: var(--surface-soft);
    font-weight: 800;
}

.area-option[aria-pressed="true"] .area-option-icon {
    border-color: var(--brand);
    color: #fff;
    background: var(--brand);
}

.area-option-copy {
    display: grid;
    min-width: 0;
    gap: 3px;
}

.area-option-copy strong {
    font-size: .86rem;
    line-height: 1.3;
}

.area-option-copy small {
    color: var(--muted);
    font-size: .72rem;
}

.area-select-mobile {
    display: none;
}

.catalog-controls {
    position: sticky;
    z-index: 50;
    top: 76px;
    padding-block: 14px;
    border-bottom: 1px solid var(--line);
    background: rgba(247, 250, 249, .94);
    backdrop-filter: blur(14px);
}

.controls-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.filter-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.filter-chip {
    min-height: 40px;
    padding: 8px 15px;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: #496164;
    background: var(--surface);
    font-size: .84rem;
    font-weight: 700;
    cursor: pointer;
    transition: color .2s ease, background .2s ease, border-color .2s ease, transform .2s ease;
}

.filter-chip:hover {
    border-color: #a9cbc6;
    color: var(--brand-dark);
    background: var(--surface-soft);
}

.filter-chip[aria-pressed="true"] {
    border-color: var(--brand);
    color: #fff;
    background: var(--brand);
}

.catalog-search {
    position: relative;
    display: block;
    width: min(100%, 330px);
    flex: 0 1 330px;
}

.catalog-search svg {
    position: absolute;
    top: 50%;
    left: 15px;
    color: #748789;
    pointer-events: none;
    transform: translateY(-50%);
}

.catalog-search input {
    width: 100%;
    min-height: 44px;
    padding: 10px 42px;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--ink);
    background: var(--surface);
    font: inherit;
    font-size: .9rem;
    transition: border-color .2s ease, box-shadow .2s ease;
}

.catalog-search input::placeholder {
    color: #748789;
}

.catalog-search input:focus {
    border-color: var(--brand);
    box-shadow: 0 0 0 4px rgba(20, 124, 114, .1);
}

.catalog-section {
    padding-block: clamp(58px, 7vw, 88px) 24px;
    background: var(--surface);
    scroll-margin-top: 154px;
}

.catalog-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 32px;
    margin-bottom: 18px;
}

.catalog-heading h2 {
    margin-bottom: 0;
    font-size: clamp(1.8rem, 3vw, 2.65rem);
}

.catalog-heading .eyebrow {
    margin-bottom: 10px;
}

.result-count {
    margin: 0 0 7px;
    color: var(--muted);
    font-size: .88rem;
    font-weight: 700;
    white-space: nowrap;
}

.major-area {
    padding-block: clamp(42px, 6vw, 72px);
    border-bottom: 1px solid var(--line);
}

.major-area:last-child {
    border-bottom: 0;
}

.major-area-header {
    display: flex;
    align-items: flex-start;
    gap: 17px;
    max-width: 900px;
}

.major-area-icon {
    display: grid;
    width: 46px;
    height: 46px;
    flex: 0 0 auto;
    place-items: center;
    border: 1px solid #d3e7e3;
    border-radius: 13px;
    color: var(--brand-dark);
    background: var(--surface-soft);
    font-size: 1.1rem;
    font-weight: 800;
}

.major-area-header :is(h2, h3) {
    margin-bottom: 7px;
    font-size: clamp(1.5rem, 2.5vw, 2rem);
}

.major-area-header p {
    max-width: 76ch;
    margin-bottom: 0;
    font-size: .96rem;
}

.selected-major-area {
    padding-top: 26px;
}

.selected-area-overview {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    max-width: 920px;
    padding: 20px;
    border: 1px solid #d4e6e3;
    border-radius: var(--radius);
    background: var(--surface-soft);
}

.selected-area-overview p {
    margin: 1px 0 0;
    font-size: .94rem;
}

.training-area {
    margin-top: 34px;
}

.training-area-title {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 17px;
    color: var(--brand-dark);
    font-size: 1rem;
    font-weight: 800;
    letter-spacing: 0;
}

.training-area-title::after {
    content: "";
    height: 1px;
    flex: 1;
    background: var(--line);
}

.course-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.course-card {
    display: flex;
    min-width: 0;
    flex-direction: column;
    padding: clamp(19px, 2.4vw, 23px);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--surface);
    transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

.course-card:hover {
    border-color: #b7d7d3;
    box-shadow: var(--shadow-small);
    transform: translateY(-3px);
}

.course-card :is(h4, h5) {
    margin: 0 0 9px;
    color: var(--ink);
    font-size: 1.08rem;
    line-height: 1.2;
    letter-spacing: -.025em;
}

.course-context {
    margin: 0 0 7px;
    color: var(--brand-dark);
    font-size: .68rem;
    font-weight: 800;
    line-height: 1.4;
}

.course-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-bottom: 12px;
}

.course-tag {
    display: inline-flex;
    align-items: center;
    min-height: 25px;
    padding: 3px 9px;
    border: 1px solid #cfe1de;
    border-radius: 999px;
    color: #496164;
    background: #f5f9f8;
    font-size: .7rem;
    font-weight: 700;
}

.course-tag.degree-bachelor {
    border-color: #cbdde5;
    color: #355d6d;
    background: #f3f8fa;
}

.course-tag.degree-technology {
    border-color: #c7e2dd;
    color: var(--brand-dark);
    background: #eff8f6;
}

.course-tag.degree-teaching {
    border-color: #e7dcc6;
    color: #725b35;
    background: #fbf8f1;
}

.course-description {
    margin-bottom: 16px;
    font-size: .88rem;
    line-height: 1.55;
}

.competency-label {
    margin: auto 0 7px;
    color: var(--ink);
    font-size: .78rem;
    font-weight: 800;
}

.competency-list {
    display: grid;
    gap: 5px;
}

.competency-list li {
    position: relative;
    padding-left: 21px;
    color: #3f575a;
    font-size: .82rem;
    line-height: 1.45;
}

.competency-list li::before {
    content: "✓";
    position: absolute;
    top: 1px;
    left: 0;
    display: grid;
    width: 16px;
    height: 16px;
    place-items: center;
    border-radius: 50%;
    color: var(--brand-dark);
    background: #dff2ef;
    font-size: .62rem;
    font-weight: 900;
}

.area-summary-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    padding-block: 28px clamp(18px, 4vw, 46px);
}

.area-summary-card {
    display: flex;
    min-width: 0;
    flex-direction: column;
    padding: 23px;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #fbfdfc;
    transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

.area-summary-card:hover {
    border-color: #b7d7d3;
    box-shadow: var(--shadow-small);
    transform: translateY(-3px);
}

.area-summary-header {
    display: flex;
    align-items: flex-start;
    gap: 13px;
}

.area-summary-header h3 {
    margin-bottom: 4px;
    font-size: 1.03rem;
}

.area-summary-count {
    margin: 0;
    color: var(--brand-dark);
    font-size: .75rem;
    font-weight: 800;
}

.area-summary-description {
    margin: 15px 0;
    font-size: .84rem;
    line-height: 1.5;
}

.area-summary-list {
    display: grid;
    gap: 7px;
    margin-bottom: 19px;
    padding-top: 13px;
    border-top: 1px solid var(--line);
}

.area-summary-list li {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 10px;
    color: #3f575a;
    font-size: .79rem;
}

.area-summary-list small {
    display: grid;
    min-width: 22px;
    height: 22px;
    place-items: center;
    border-radius: 999px;
    color: var(--brand-dark);
    background: var(--surface-soft);
    font-size: .68rem;
    font-weight: 800;
}

.area-summary-action {
    display: inline-flex;
    align-items: center;
    align-self: flex-start;
    gap: 7px;
    margin-top: auto;
    padding: 5px 0;
    border: 0;
    color: var(--brand-dark);
    background: transparent;
    font-size: .82rem;
    font-weight: 800;
    cursor: pointer;
}

.area-summary-action span {
    transition: transform .2s ease;
}

.area-summary-action:hover span {
    transform: translateX(4px);
}

.empty-state {
    margin-block: 48px 64px;
    padding: 42px 24px;
    border: 1px dashed #bcd6d2;
    border-radius: var(--radius);
    background: var(--surface-soft);
    text-align: center;
}

.empty-state h2 {
    margin-bottom: 8px;
    font-size: 1.3rem;
}

.empty-state p {
    margin-bottom: 0;
}

.course-note {
    display: flex;
    gap: 16px;
    margin-block: clamp(44px, 7vw, 78px);
    padding: clamp(22px, 4vw, 31px);
    border: 1px solid #d2e5e2;
    border-radius: var(--radius);
    background: var(--surface-soft);
}

.note-icon {
    display: grid;
    width: 34px;
    height: 34px;
    flex: 0 0 auto;
    place-items: center;
    border-radius: 50%;
    color: #fff;
    background: var(--brand);
    font-family: Georgia, serif;
    font-weight: 700;
}

.course-note h2 {
    margin-bottom: 7px;
    font-size: 1rem;
    letter-spacing: 0;
}

.course-note p {
    max-width: 92ch;
    margin-bottom: 0;
    font-size: .86rem;
}

@media (max-width: 1024px) {
    .courses-hero-inner {
        grid-template-columns: minmax(0, 1.08fr) minmax(310px, .92fr);
        gap: 36px;
    }

    .catalog-stats {
        grid-template-columns: 1fr;
    }

    .catalog-stat {
        display: flex;
        align-items: baseline;
        gap: 9px;
        padding: 13px 16px;
    }

    .catalog-stat dt {
        margin-top: 0;
    }

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

@media (max-width: 899px) {
    .courses-hero-inner {
        grid-template-columns: 1fr;
    }

    .catalog-stats {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .catalog-stat {
        display: block;
        padding: 16px;
    }

    .catalog-stat dt {
        margin-top: 5px;
    }

    .area-explorer-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 12px;
    }

    .area-explorer-heading > p {
        margin-bottom: 0;
    }

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

    .catalog-controls {
        position: static;
    }

    .catalog-section {
        scroll-margin-top: 84px;
    }

    .controls-inner {
        align-items: stretch;
        flex-direction: column-reverse;
    }

    .catalog-search {
        width: 100%;
        max-width: none;
        flex-basis: auto;
    }
}

@media (max-width: 720px) {
    .course-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .courses-hero {
        padding-block: 48px 54px;
    }

    .courses-intro {
        text-align: center;
    }

    .courses-intro .eyebrow {
        justify-content: center;
    }

    .courses-intro h1,
    .courses-intro > p {
        margin-inline: auto;
    }

    .area-explorer {
        padding-block: 48px;
    }

    .area-explorer-heading {
        margin-bottom: 20px;
    }

    .area-selector {
        display: none;
    }

    .area-select-mobile {
        display: grid;
        gap: 7px;
        color: var(--ink);
        font-size: .78rem;
        font-weight: 800;
    }

    .area-select-mobile select {
        width: 100%;
        min-height: 48px;
        padding: 10px 42px 10px 14px;
        border: 1px solid #bcd7d3;
        border-radius: 12px;
        color: var(--ink);
        background: var(--surface);
        font: inherit;
        font-size: .88rem;
    }

    .catalog-controls {
        top: 68px;
        padding-block: 12px;
    }

    .filter-chips {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .filter-chip {
        padding-inline: 10px;
    }

    .catalog-heading {
        align-items: flex-start;
        flex-direction: column;
        gap: 12px;
    }

    .result-count {
        margin-bottom: 0;
    }

    .major-area-header {
        gap: 13px;
    }

    .major-area-icon {
        width: 40px;
        height: 40px;
    }

    .training-area-title {
        align-items: flex-start;
    }

    .training-area-title::after {
        margin-top: 12px;
    }

    .course-card {
        padding: 20px;
    }

    .area-summary-grid {
        grid-template-columns: 1fr;
    }

    .course-note {
        align-items: flex-start;
    }
}

@media (max-width: 420px) {
    .catalog-stats {
        gap: 8px;
    }

    .catalog-stat {
        padding: 13px 9px;
        text-align: center;
    }

    .catalog-stat dt {
        font-size: .67rem;
    }

    .course-note {
        flex-direction: column;
    }
}