body {
    min-height: 100vh;
    margin: 0;
    color: #14213d;
    background: #f4f7fb;
    font-family: "Nunito", "Segoe UI", sans-serif;
}

.courses-topbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.94);
    border-bottom: 1px solid #e4eaf4;
    backdrop-filter: blur(14px);
}

.courses-topbar-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 58px;
}

.courses-home-link,
.courses-call-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #14213d;
    text-decoration: none;
    font-weight: 800;
}

.courses-call-link {
    padding: 8px 12px;
    color: #fff;
    background: #20a568;
    border-radius: 999px;
}

.courses-page {
    padding-top: 18px;
    padding-bottom: 28px;
}

.course-explorer {
    --course-ink: #14213d;
    --course-muted: #65728c;
    --course-border: #e4eaf4;
    max-width: 980px;
    margin: 0 auto;
}

.course-hero {
    position: relative;
    overflow: hidden;
    padding: 24px 20px;
    margin-bottom: 18px;
    color: #fff;
    background:
        radial-gradient(circle at 92% 10%, rgba(255,255,255,.2), transparent 27%),
        linear-gradient(135deg, #183b8f 0%, #3566f4 58%, #6d5dfc 100%);
    border-radius: 22px;
    box-shadow: 0 18px 38px rgba(29, 73, 180, .22);
}

.course-hero::after {
    content: "";
    position: absolute;
    width: 180px;
    height: 180px;
    right: -80px;
    bottom: -105px;
    border: 28px solid rgba(255,255,255,.08);
    border-radius: 50%;
    pointer-events: none;
}

.course-hero-copy {
    position: relative;
    z-index: 1;
    max-width: 680px;
}

.course-hero h1 {
    margin: 0;
    font-size: clamp(1.45rem, 4vw, 2.1rem);
    font-weight: 800;
    line-height: 1.2;
}

.course-hero-points {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
}

.course-hero-point {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 10px;
    color: #fff;
    background: rgba(255,255,255,.12);
    border: 1px solid rgba(255,255,255,.18);
    border-radius: 10px;
    font-size: .75rem;
    font-weight: 600;
    backdrop-filter: blur(8px);
}

.course-toolbar {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.course-search {
    position: relative;
    flex: 1;
}

.course-search i {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: #74829e;
    pointer-events: none;
}

.course-search input {
    width: 100%;
    min-height: 48px;
    padding: 11px 14px 11px 42px;
    color: var(--course-ink);
    background: #fff;
    border: 1px solid var(--course-border);
    border-radius: 14px;
    font-size: .88rem;
    outline: none;
    box-shadow: 0 7px 20px rgba(30, 52, 105, .07);
}

.course-search input:focus {
    border-color: #6e8ff4;
    box-shadow: 0 0 0 4px rgba(53,102,244,.1);
}

.course-result-count {
    flex-shrink: 0;
    padding: 8px 11px;
    color: #3156b4;
    background: #eaf0ff;
    border-radius: 11px;
    font-size: .76rem;
    font-weight: 800;
}

#coursesContainer {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 16px;
}

.course-card {
    --course-accent: #3566f4;
    position: relative;
    min-width: 0;
    background: #fff;
    border: 1px solid var(--course-border);
    border-radius: 20px;
    box-shadow: 0 10px 28px rgba(24, 49, 103, .09);
    cursor: pointer;
    overflow: hidden;
    transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}

.course-card.is-current-course {
    border-color: #20a568;
    box-shadow:
        0 0 0 2px rgba(32, 165, 104, .18),
        0 12px 30px rgba(24, 49, 103, .1),
        0 0 18px rgba(32, 165, 104, .12);
}

.course-card:hover,
.course-card:focus-visible {
    transform: translateY(-4px);
    border-color: var(--course-accent);
    box-shadow: 0 18px 38px rgba(24, 49, 103, .15);
    outline: none;
}

.course-card.course-tone-1 { --course-accent: #3566f4; }
.course-card.course-tone-2 { --course-accent: #7b57e8; }
.course-card.course-tone-3 { --course-accent: #08a88a; }
.course-card.course-tone-4 { --course-accent: #e87924; }
.course-card.course-tone-5 { --course-accent: #d64d75; }

.course-media {
    position: relative;
    aspect-ratio: 16 / 8.6;
    overflow: hidden;
    background: #edf2ff;
}

.course-image {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    transition: transform .35s ease;
}

.course-card:hover .course-image {
    transform: scale(1.035);
}

.course-media-shade {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(9,24,60,.03) 35%, rgba(9,24,60,.68) 100%);
    pointer-events: none;
}

.course-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    max-width: calc(100% - 24px);
    padding: 7px 10px;
    color: #18366f;
    background: rgba(255,255,255,.94);
    border-radius: 999px;
    box-shadow: 0 6px 18px rgba(12,31,76,.14);
    font-size: .7rem;
    font-weight: 800;
}

.course-number {
    position: absolute;
    right: 12px;
    bottom: 11px;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: #fff;
    font-size: .72rem;
    font-weight: 700;
}

.course-content {
    padding: 17px;
}

.course-title-row {
    display: flex;
    align-items: flex-start;
    gap: 11px;
}

.course-icon {
    width: 39px;
    height: 39px;
    flex: 0 0 39px;
    display: grid;
    place-items: center;
    color: var(--course-accent);
    background: #f0f4ff;
    border-radius: 12px;
    font-size: 1rem;
}

.course-title {
    margin: 1px 0 0;
    color: var(--course-ink);
    font-size: 1.05rem;
    font-weight: 800;
    line-height: 1.35;
}

.course-description {
    display: -webkit-box;
    margin: 11px 0 0;
    overflow: hidden;
    color: var(--course-muted);
    font-size: .84rem;
    line-height: 1.58;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.course-facts {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 9px;
    margin-top: 14px;
}

.course-fact {
    min-width: 0;
    padding: 10px;
    background: #f7f9fd;
    border: 1px solid #edf0f6;
    border-radius: 12px;
}

.course-fact-label {
    display: flex;
    align-items: center;
    gap: 6px;
    color: #74809a;
    font-size: .66rem;
    font-weight: 700;
    text-transform: uppercase;
}

.course-fact-value {
    display: block;
    margin-top: 4px;
    overflow: hidden;
    color: #233252;
    font-size: .76rem;
    font-weight: 700;
    line-height: 1.35;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.course-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    margin-top: 13px;
}

.course-skill {
    max-width: 100%;
    padding: 6px 9px;
    overflow: hidden;
    color: #405175;
    background: #f1f4fa;
    border-radius: 8px;
    font-size: .7rem;
    font-weight: 650;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.course-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid #edf0f6;
}

.course-career-note {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    min-width: 0;
    color: #60708e;
    font-size: .72rem;
    font-weight: 650;
}

.course-action {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 9px 12px;
    color: #fff;
    background: var(--course-accent);
    border-radius: 10px;
    font-size: .76rem;
    font-weight: 800;
    text-decoration: none;
}

.course-action:hover {
    color: #fff;
    filter: brightness(.96);
}

.course-empty-search {
    display: none;
    padding: 28px 18px;
    color: var(--course-muted);
    background: #fff;
    border: 1px dashed #cfd8e8;
    border-radius: 18px;
    text-align: center;
}

.course-empty-search i {
    display: block;
    margin-bottom: 9px;
    color: #8092bb;
    font-size: 1.7rem;
}

.course-resume-banner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: 20px;
    padding: 18px;
    color: #fff;
    background: linear-gradient(135deg, #14213d, #294d9f);
    border-radius: 18px;
    box-shadow: 0 14px 28px rgba(20,33,61,.18);
}

.course-resume-copy {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 0;
}

.course-resume-icon {
    width: 44px;
    height: 44px;
    flex: 0 0 44px;
    display: grid;
    place-items: center;
    color: #203b79;
    background: #fff;
    border-radius: 13px;
    font-size: 1.1rem;
}

.course-resume-banner h2 {
    margin: 0;
    font-size: .95rem;
    font-weight: 800;
}

.course-resume-banner p {
    margin: 4px 0 0;
    color: rgba(255,255,255,.74);
    font-size: .72rem;
}

.course-resume-button {
    flex-shrink: 0;
    padding: 10px 13px;
    color: #173875;
    background: #fff;
    border-radius: 10px;
    font-size: .75rem;
    font-weight: 800;
    text-decoration: none;
}

.course-resume-button:hover {
    color: #173875;
    background: #edf3ff;
}

.app-footer {
    margin-top: 24px;
    padding: 28px 0;
    color: #dce5ff;
    background:
        radial-gradient(circle at top left, rgba(78, 115, 223, 0.22), transparent 38%),
        #10182c;
}

.footer-inner {
    max-width: 760px;
    margin: 0 auto;
}

.footer-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 20px;
}

.footer-brand h2 {
    margin: 0 0 4px;
    color: #fff;
    font-size: 1.25rem;
    font-weight: 800;
}

.footer-brand p {
    margin: 0;
    color: #9eacd0;
    font-size: 0.86rem;
}

.footer-call {
    display: inline-flex;
    align-items: center;
    gap: 11px;
    flex-shrink: 0;
    min-width: 210px;
    padding: 10px 14px;
    color: #102218;
    background: #fff;
    border-radius: 13px;
    text-decoration: none;
}

.footer-call:hover {
    color: #102218;
}

.footer-call-icon {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    flex: 0 0 38px;
    color: #fff;
    background: #20a45b;
    border-radius: 50%;
}

.footer-call-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.footer-call-text small {
    margin-bottom: 3px;
    color: #68736d;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
}

.footer-call-text strong {
    font-size: 0.9rem;
}

.footer-call-text span {
    margin-top: 2px;
    color: #68736d;
    font-size: 0.78rem;
}

.footer-socials {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.footer-social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    min-height: 46px;
    padding: 10px 12px;
    color: #fff;
    border-radius: 12px;
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 750;
}

.footer-social-link:hover {
    color: #fff;
}

.footer-social-link.youtube { background: #ff0000; }
.footer-social-link.instagram { background: linear-gradient(135deg, #833ab4 0%, #e1306c 52%, #f77737 100%); }
.footer-social-link.facebook { background: #1877f2; }

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.11);
    color: #8492b6;
    font-size: 0.76rem;
}

.footer-bottom p {
    margin: 0;
}

.footer-bottom a {
    color: #dce5ff;
    text-decoration: none;
}

@media (min-width: 700px) {
    #coursesContainer {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 575.98px) {
    .course-hero {
        padding: 20px 17px;
        border-radius: 18px;
    }

    .course-toolbar {
        align-items: stretch;
        flex-direction: column;
    }

    .course-result-count {
        align-self: flex-start;
    }

    .course-content {
        padding: 15px;
    }

    .course-facts {
        grid-template-columns: minmax(0, 1fr);
    }

    .course-resume-banner,
    .footer-top {
        align-items: stretch;
        flex-direction: column;
    }

    .course-resume-button {
        text-align: center;
    }

    .footer-call {
        width: 100%;
    }

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