/* Course catalog V5 — wide, calm, decision-first layout */
.course-catalog-v4 {
    --c5-ink: #122f33;
    --c5-muted: #6a7f82;
    --c5-line: #dce8e6;
    --c5-soft: #f3f8f7;
    --c5-teal: #087f78;
    --c5-dark: #064f4c;
    --c5-mint: #e5f5f1;
    background: #f6f9f8;
    color: var(--c5-ink);
    min-height: 100vh;
    padding-bottom: 72px;
}

.catalog-v4-hero {
    background:
        radial-gradient(circle at 10% 20%, rgba(70, 214, 191, .19), transparent 30%),
        radial-gradient(circle at 87% 0%, rgba(255, 205, 103, .13), transparent 27%),
        linear-gradient(125deg, #062f32 0%, #075d59 57%, #07867d 100%);
    min-height: 400px;
    overflow: hidden;
    padding: 72px 0 96px;
    position: relative;
}

.catalog-v4-hero::before {
    background-image: radial-gradient(rgba(255,255,255,.16) 1px, transparent 1px);
    background-size: 22px 22px;
    content: "";
    inset: 0;
    opacity: .25;
    pointer-events: none;
    position: absolute;
}

.catalog-v4-orb {
    border: 1px solid rgba(255,255,255,.11);
    border-radius: 50%;
    height: 420px;
    left: -130px;
    position: absolute;
    top: -220px;
    width: 420px;
}

.catalog-v4-hero-grid {
    align-items: center;
    display: grid;
    gap: clamp(32px, 6vw, 88px);
    grid-template-columns: minmax(0, 1.1fr) minmax(390px, .9fr);
    position: relative;
    z-index: 1;
}

.catalog-v4-kicker {
    align-items: center;
    background: rgba(255,255,255,.1);
    border: 1px solid rgba(255,255,255,.17);
    border-radius: 999px;
    color: #d6f5ef;
    display: inline-flex;
    font-size: 13px;
    font-weight: 800;
    gap: 8px;
    padding: 8px 13px;
}

.catalog-v4-hero h1 {
    color: #fff;
    font-size: clamp(40px, 5vw, 68px);
    font-weight: 900;
    letter-spacing: -.055em;
    line-height: 1.12;
    margin: 18px 0;
}

.catalog-v4-hero h1 em { color: #7ce0cf; font-style: normal; }
.catalog-v4-hero-grid > div > p { color: rgba(255,255,255,.72); font-size: 17px; line-height: 1.9; margin: 0; max-width: 680px; }

.catalog-v4-search {
    backdrop-filter: blur(18px);
    background: rgba(255,255,255,.11);
    border: 1px solid rgba(255,255,255,.2);
    border-radius: 28px;
    box-shadow: 0 28px 70px rgba(0,29,31,.25);
    padding: 14px;
}

.catalog-v4-search > label {
    align-items: center;
    background: #fff;
    border: 0;
    border-radius: 16px;
    display: flex;
    gap: 10px;
    margin: 0 0 10px;
    padding: 0 15px;
}

.catalog-v4-search > label i { color: var(--c5-teal); font-size: 18px; }
.catalog-v4-search input { background: transparent; border: 0; box-shadow: none !important; color: var(--c5-ink); min-width: 0; outline: 0; padding: 17px 0; width: 100%; }
.catalog-v4-search button { align-items: center; background: #f2c55c; border: 0; border-radius: 15px; color: #17383b; display: flex; font-weight: 900; gap: 8px; justify-content: center; min-height: 53px; width: 100%; }
.catalog-v4-search button:hover { background: #ffcf63; transform: translateY(-1px); }
.catalog-v4-search > div { display: flex; flex-wrap: wrap; gap: 7px 14px; padding: 12px 5px 3px; }
.catalog-v4-search > div span { color: rgba(255,255,255,.72); font-size: 11px; font-weight: 700; }
.catalog-v4-search > div i { color: #8be0d1; margin-left: 3px; }

.catalog-v4-workspace {
    display: block;
    margin: -49px auto 0;
    max-width: 1380px;
    padding-inline: 24px;
    position: relative;
    z-index: 3;
}

.catalog-v4-filters {
    background: rgba(255,255,255,.98);
    border: 1px solid var(--c5-line);
    border-radius: 24px;
    box-shadow: 0 18px 55px rgba(15,70,70,.1);
    max-height: none;
    overflow: visible;
    padding: 20px;
    position: relative;
    top: auto;
}

.catalog-v4-filters form {
    display: grid;
    gap: 13px;
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.catalog-v4-filters form > header {
    align-items: center;
    border-bottom: 1px solid #e8efee;
    display: flex;
    grid-column: 1 / -1;
    justify-content: space-between;
    margin: 0 0 3px;
    padding: 0 0 15px;
}

.catalog-v4-filters form > header > div { align-items: center; display: flex; gap: 11px; }
.catalog-v4-filters form > header > div > span { align-items: center; background: var(--c5-mint); border-radius: 12px; color: var(--c5-teal); display: flex; font-size: 18px; height: 42px; justify-content: center; width: 42px; }
.catalog-v4-filters h2 { font-size: 16px; font-weight: 900; margin: 0 0 2px; }
.catalog-v4-filters header p { color: var(--c5-muted); font-size: 12px; margin: 0; }
.catalog-v4-filters header > a { color: #a34b4b; font-size: 12px; font-weight: 800; text-decoration: none; }
.catalog-mobile-close { align-items: center; background: #edf5f3; border: 0; border-radius: 10px; color: var(--c5-dark); display: none; height: 40px; justify-content: center; margin-right: auto; width: 40px; }

.catalog-filter-row { display: contents; }
.catalog-filter-group { margin: 0; min-width: 0; }
.catalog-filter-group > label { color: #476064; display: block; font-size: 12px; font-weight: 800; margin: 0 2px 6px; }
.catalog-filter-group select {
    appearance: auto;
    background-color: #fafcfc;
    border: 1px solid var(--c5-line);
    border-radius: 12px;
    color: var(--c5-ink);
    font-size: 13px;
    min-height: 47px;
    outline: 0;
    padding: 0 12px;
    transition: .2s ease;
    width: 100%;
}
.catalog-filter-group select:focus { background: #fff; border-color: var(--c5-teal); box-shadow: 0 0 0 3px rgba(8,127,120,.1); }

.catalog-radio-cards { display: grid; gap: 7px; grid-template-columns: repeat(3, 1fr); }
.catalog-radio-cards label { cursor: pointer; margin: 0; position: relative; }
.catalog-radio-cards input { opacity: 0; position: absolute; }
.catalog-radio-cards span { align-items: center; background: #fafcfc; border: 1px solid var(--c5-line); border-radius: 12px; display: flex; font-size: 12px; font-weight: 800; justify-content: center; min-height: 47px; padding: 8px; }
.catalog-radio-cards input:checked + span { background: var(--c5-mint); border-color: var(--c5-teal); color: var(--c5-dark); box-shadow: inset 0 0 0 1px var(--c5-teal); }
.catalog-apply { align-items: center; align-self: end; background: var(--c5-teal); border: 0; border-radius: 13px; color: #fff; display: flex; font-size: 13px; font-weight: 900; gap: 7px; justify-content: center; min-height: 47px; }
.catalog-apply:hover { background: var(--c5-dark); }

.catalog-v4-results { background: transparent; border: 0; box-shadow: none; margin-top: 42px; padding: 0; }
.catalog-results-head { align-items: end; display: flex; gap: 20px; justify-content: space-between; margin-bottom: 18px; }
.catalog-results-head > div > span { color: var(--c5-teal); font-size: 12px; font-weight: 900; }
.catalog-results-head h2 { font-size: clamp(25px, 3vw, 36px); font-weight: 900; letter-spacing: -.025em; margin: 3px 0 4px; }
.catalog-results-head p { color: var(--c5-muted); font-size: 13px; margin: 0; }
.catalog-results-head button { align-items: center; background: #fff; border: 1px solid var(--c5-line); border-radius: 12px; color: var(--c5-dark); display: none; font-weight: 800; gap: 7px; min-height: 44px; padding: 0 14px; }
.catalog-results-head button b { align-items: center; background: var(--c5-teal); border-radius: 50%; color: #fff; display: flex; font-size: 10px; height: 19px; justify-content: center; width: 19px; }

.catalog-active-filters { align-items: center; background: #fff; border: 1px solid var(--c5-line); border-radius: 15px; display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; padding: 10px 12px; }
.catalog-active-filters > span { color: var(--c5-muted); font-size: 12px; font-weight: 800; }
.catalog-active-filters a { align-items: center; background: var(--c5-mint); border-radius: 999px; color: var(--c5-dark); display: inline-flex; font-size: 11px; font-weight: 800; gap: 5px; padding: 7px 10px; text-decoration: none; }

.catalog-v4-grid { display: grid; gap: 20px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.catalog-v4-card { background: #fff; border: 1px solid var(--c5-line); border-radius: 22px; display: flex; flex-direction: column; min-width: 0; overflow: hidden; transition: box-shadow .25s ease, transform .25s ease, border-color .25s ease; }
.catalog-v4-card:hover { border-color: #b9d9d4; box-shadow: 0 22px 50px rgba(12,70,69,.12); transform: translateY(-5px); }
.catalog-card-media { align-items: center; background: linear-gradient(135deg, #dff2ee, #eef8f6); color: var(--c5-teal); display: flex; height: 190px; justify-content: center; overflow: hidden; position: relative; text-decoration: none; }
.catalog-card-media > i { font-size: 48px; opacity: .7; }
.catalog-card-media img { height: 100%; inset: 0; object-fit: cover; position: absolute; transition: transform .4s ease; width: 100%; }
.catalog-v4-card:hover .catalog-card-media img { transform: scale(1.04); }
.catalog-card-media::after { background: linear-gradient(180deg, transparent 35%, rgba(3,29,31,.65)); content: ""; inset: 0; opacity: 0; position: absolute; }
.catalog-card-media.has-image::after { opacity: 1; }
.catalog-card-media > div { align-items: center; bottom: 12px; display: flex; gap: 7px; left: 12px; position: absolute; right: 12px; z-index: 2; }
.catalog-card-media > div span,.catalog-card-media > div b { backdrop-filter: blur(8px); background: rgba(255,255,255,.92); border-radius: 999px; color: var(--c5-ink); font-size: 10px; font-weight: 900; padding: 6px 9px; }
.catalog-card-media > div b { background: #def7f1; color: #075f59; }
.catalog-card-body { display: flex; flex: 1; flex-direction: column; padding: 18px; }
.catalog-card-meta { align-items: center; display: flex; gap: 8px; justify-content: space-between; margin-bottom: 10px; }
.catalog-card-meta span { color: var(--c5-teal); font-size: 11px; font-weight: 900; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.catalog-card-meta b { background: var(--c5-soft); border-radius: 7px; color: #587073; font-size: 10px; padding: 5px 7px; white-space: nowrap; }
.catalog-card-body h3 { font-size: 18px; font-weight: 900; line-height: 1.55; margin: 0 0 7px; }
.catalog-card-body h3 a { color: var(--c5-ink); text-decoration: none; }
.catalog-card-body > p { color: var(--c5-muted); display: -webkit-box; font-size: 12px; line-height: 1.75; margin: 0 0 12px; overflow: hidden; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.catalog-card-skills { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.catalog-card-skills span { background: #f2f7f6; border: 1px solid #e6efed; border-radius: 7px; color: #536b6f; font-size: 10px; font-weight: 700; padding: 5px 7px; }
.catalog-card-fit { align-items: flex-start; background: #f8fbfa; border-right: 3px solid #56b6a7; border-radius: 8px; color: #4e686c; display: flex; font-size: 11px; gap: 7px; line-height: 1.55; margin-bottom: 13px; padding: 8px 9px; }
.catalog-card-fit i { color: var(--c5-teal); }
.catalog-practical { margin-bottom: 13px; }
.catalog-practical > div { color: #607579; display: flex; font-size: 10px; font-weight: 800; justify-content: space-between; margin-bottom: 5px; }
.catalog-practical > div b { color: var(--c5-teal); }
.catalog-practical > i { background: #e9f0ef; border-radius: 999px; display: block; height: 5px; overflow: hidden; }
.catalog-practical > i em { background: linear-gradient(90deg, var(--c5-teal), #44b9a7); border-radius: inherit; display: block; height: 100%; }
.catalog-card-stats { color: var(--c5-muted); display: flex; font-size: 11px; gap: 16px; margin-bottom: 14px; }
.catalog-card-stats span { align-items: center; display: inline-flex; gap: 5px; }
.catalog-card-stats i { color: var(--c5-teal); }
.catalog-card-body footer { align-items: center; border-top: 1px solid #e9f0ef; display: flex; gap: 12px; justify-content: space-between; margin-top: auto; padding-top: 14px; }
.catalog-card-body footer small { color: var(--c5-muted); display: block; font-size: 9px; margin-bottom: 1px; }
.catalog-card-body footer strong { color: var(--c5-ink); font-size: 15px; font-weight: 900; }
.catalog-card-body footer > a { align-items: center; background: var(--c5-teal); border-radius: 11px; color: #fff; display: inline-flex; font-size: 11px; font-weight: 900; gap: 6px; padding: 10px 12px; text-decoration: none; }
.catalog-card-body footer > a:hover { background: var(--c5-dark); }
.catalog-v4-empty { align-items: center; background: #fff; border: 1px dashed #bdd8d4; border-radius: 24px; display: flex; flex-direction: column; justify-content: center; min-height: 390px; padding: 35px; text-align: center; }
.catalog-v4-empty > i { align-items: center; background: var(--c5-mint); border-radius: 20px; color: var(--c5-teal); display: flex; font-size: 28px; height: 74px; justify-content: center; width: 74px; }
.catalog-v4-empty h2 { font-size: 22px; font-weight: 900; margin: 16px 0 6px; }
.catalog-v4-empty p { color: var(--c5-muted); }.catalog-v4-empty a { background: var(--c5-teal); border-radius: 11px; color: #fff; font-size: 12px; font-weight: 800; padding: 10px 14px; text-decoration: none; }

@media (max-width: 1199px) {
    .catalog-v4-filters form { grid-template-columns: repeat(3, minmax(0,1fr)); }
    .catalog-v4-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
}

@media (max-width: 900px) {
    .catalog-v4-hero { min-height: auto; padding: 48px 0 74px; }
    .catalog-v4-hero-grid { grid-template-columns: 1fr; }
    .catalog-v4-workspace { margin-top: -30px; padding-inline: 14px; }
    .catalog-v4-filters { border-radius: 22px 0 0 22px; bottom: 0; box-shadow: -20px 0 65px rgba(2,35,37,.25); max-width: 390px; overflow-y: auto; padding: 18px; position: fixed; right: 0; top: 0; transform: translateX(110%); transition: transform .25s ease; width: min(94vw,390px); z-index: 1055; }
    .catalog-v4-filters.open { transform: translateX(0); }
    .catalog-v4-filters form { display: block; }
    .catalog-v4-filters form > header { margin-bottom: 15px; }
    .catalog-mobile-close { display: inline-flex; }
    .catalog-v4-filters form > header > a { margin-right: auto; }
    .catalog-filter-group { margin-bottom: 13px; }
    .catalog-filter-row { display: grid; gap: 10px; grid-template-columns: repeat(2,minmax(0,1fr)); }
    .catalog-apply { min-height: 50px; width: 100%; }
    .catalog-results-head button { display: inline-flex; flex: 0 0 auto; }
    .course-catalog-v4.filters-open::after { background: rgba(3,33,35,.55); content: ""; inset: 0; position: fixed; z-index: 1050; }
    .catalog-v4-results { margin-top: 30px; }
}

@media (max-width: 620px) {
    .catalog-v4-hero { padding-top: 38px; }
    .catalog-v4-hero h1 { font-size: 38px; }
    .catalog-v4-hero-grid > div > p { font-size: 14px; }
    .catalog-v4-search { border-radius: 21px; padding: 10px; }
    .catalog-v4-grid { grid-template-columns: 1fr; }
    .catalog-results-head { align-items: flex-start; }
    .catalog-results-head h2 { font-size: 25px; }
    .catalog-results-head p { max-width: 230px; }
    .catalog-card-media { height: 205px; }
}