:root {
    --primary: #0a359d;
    --accent: #ff9719;
    --bg: #f1f5f9;
    --text: #1e293b;
    --muted: #64748b;
    --white: #ffffff;
    --radius: 18px;

    --primary-color: #0a359d;
    --secondary-color: #ff9719;
    --accent-color: #abbcff;
    --dark-color: #001433;
    --light-color: #f8fafc;
    --text-color: #0a359d;
    --text-light: #0a359d;
    --transition: all 0.4s ease;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --border-radius: 8px;

    --dark-primary: #3B4C73;
    --dark-secondary: #FFC078;
    --dark-accent: #A0B3FF;
    --dark-background: #0F1523;
    --dark-text: #f0f0f0;
    --dark-text-light: #a8a8a8;
    --dark-shadow: 0 6px 20px rgba(0, 0, 0, 0.45);
    --dark-border: rgba(255, 255, 255, 0.1);
    --dark-hover: rgba(255, 255, 255, 0.05);
    --dark-transition: all 0.3s ease-in-out;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Plus Jakarta Sans', sans-serif;
    background: var(--bg);
    color: var(--text);
}

/* ================= BOTÓN VOLVER ================= */
.btn-back {
    position: fixed;
    top: 20px;
    left: 20px;
    background: var(--white);
    padding: 10px 18px;
    border-radius: 50px;
    text-decoration: none;
    color: var(--primary);
    font-weight: 700;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    z-index: 1000;
}

.btn-back:hover {
    background: var(--accent);
    color: white;
}

/* ================= HERO ================= */
.hero {
    height: 340px;
    background:
        linear-gradient(
            rgba(13, 66, 152, 0.55),
            rgba(98, 75, 1, 0.75)
        ),
        url("../Images/hero.png") center / cover no-repeat;
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 20px;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 10px;
}

.yellow {
    color: var(--accent);
}

/* ================= FILTROS ================= */
.filters {
    margin-top: -40px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 20px;
    max-width: 1200px;
    margin-inline: auto;
}

.filters-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.filters-arrow {
    background: var(--white);
    border: none;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    box-shadow: 0 6px 18px rgba(0,0,0,0.12);
    cursor: pointer;
    color: var(--primary);
    flex-shrink: 0;
}

.filters-arrow:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.filters-viewport {
    overflow: hidden;
    width: 520px;
}

.filter-buttons {
    display: flex;
    gap: 10px;
    transition: transform 0.35s ease;
}

.filter-btn {
    padding: 10px 18px;
    border-radius: 50px;
    font-weight: 700;
    background: var(--white);
    color: var(--muted);
    border: none;
    white-space: nowrap;
    cursor: pointer;
}

.filter-btn.active {
    background: var(--accent);
    color: white;
}

/* ================= BUSCADOR ================= */
.search-box {
    position: relative;
    margin-left: auto;
}

.search-box input {
    padding: 12px 40px;
    width: 240px;
    border-radius: 50px;
    border: none;
    outline: none;
    font-size: 14px;
}

.search-box i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary);
}

/* ================= GRID ================= */
.courses-grid {
    max-width: 1200px;
    margin: 40px auto 100px;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

/* ================= CARD ================= */
.course-card {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

/* BADGE */
.badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: var(--accent);
    color: white;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 800;
    border-radius: 8px;
    z-index: 5;
}

/* ================= CARRUSEL ================= */
.carousel {
    position: relative;
    height: 370px;
}

.carousel img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: none;
}

.carousel img.active {
    display: block;
}

.dots {
    position: absolute;
    bottom: 10px;
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 6px;
}

.dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
}

.dots span.active {
    background: white;
}

/* ================= BODY ================= */
.course-body {
    padding: 20px;
    flex-grow: 1;
}

.tag {
    font-size: 11px;
    font-weight: 800;
    color: var(--primary);
}

.course-body h3 {
    margin: 10px 0;
    font-size: 18px;
}

.description {
    font-size: 14px;
    color: var(--muted);
}

.author {
    margin-top: 10px;
    font-size: 13px;
}

.rating {
    margin-top: 10px;
    font-size: 14px;
    font-weight: 700;
}

/* ================= FOOTER ================= */
.course-footer {
    padding: 15px 20px;
    border-top: 1px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.btn-view {
    background: var(--primary);
    color: white;
    padding: 8px 18px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 14px;
}

.drive {
    font-size: 13px;
    font-weight: 700;
    color: var(--accent);
}

/* ================= PAGINACIÓN ================= */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    margin-bottom: 80px;
}

.pagination button {
    background: var(--primary);
    color: white;
    border: none;
    padding: 8px 18px;
    border-radius: 50px;
    font-weight: 700;
    cursor: pointer;
}

.pagination button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

#pageInfo {
    font-weight: 700;
}

body.dark-mode {
    background: #0f172a;
    color: #e5e7eb;
}

body.dark-mode .hero {
    background:
        linear-gradient(
            rgba(98, 75, 1, 0.531),
            rgb(14, 23, 37)
        ),
        url("../Images/hero.png") center / cover no-repeat;
}

body.dark-mode .btn-back,
body.dark-mode .filters-arrow,
body.dark-mode .filter-btn,
body.dark-mode .search-box input,
body.dark-mode .course-card,
body.dark-mode .pagination button {
    background: #020617;
    color: #e5e7eb;
}

body.dark-mode .filter-btn.active,
body.dark-mode .btn-view {
    background: var(--accent);
    color: #020617;
}

body.dark-mode .description,
body.dark-mode .author {
    color: #94a3b8;
}

body.dark-mode .tag {
    color: #93c5fd;
}

body.dark-mode .course-footer {
    border-color: #1e293b;
}

body.dark-mode .drive {
    color: #fbbf24;
}

body.dark-mode .dots span {
    background: rgba(255,255,255,0.35);
}

body.dark-mode .dots span.active {
    background: white;
}

:root {
    --primary: #0a359d;
    --accent: #ff9719;
    --bg: #f1f5f9;
    --text: #1e293b;
    --muted: #64748b;
    --white: #ffffff;
    --radius: 18px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Plus Jakarta Sans', sans-serif;
    background: var(--bg);
    color: var(--text);
}

/* ================= BOTÓN VOLVER ================= */
.btn-back {
    position: fixed;
    top: 20px;
    left: 20px;
    background: var(--white);
    padding: 10px 18px;
    border-radius: 50px;
    text-decoration: none;
    color: var(--primary);
    font-weight: 700;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    z-index: 1000;
}

.btn-back:hover {
    background: var(--accent);
    color: white;
}

/* ================= HERO ================= */
.hero {
    height: 340px;
    background:
        linear-gradient(
            rgba(13, 66, 152, 0.55),
            rgba(98, 75, 1, 0.75)
        ),
        url("../Images/hero.png") center / cover no-repeat;
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 20px;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 10px;
}

.yellow {
    color: var(--accent);
}

/* ================= FILTROS ================= */
.filters {
    margin-top: -40px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 20px;
    max-width: 1200px;
    margin-inline: auto;
}

.filters-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.filters-arrow {
    background: var(--white);
    border: none;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    box-shadow: 0 6px 18px rgba(0,0,0,0.12);
    cursor: pointer;
    color: var(--primary);
    flex-shrink: 0;
}

.filters-arrow:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.filters-viewport {
    overflow: hidden;
    width: 520px;
}

.filter-buttons {
    display: flex;
    gap: 10px;
    transition: transform 0.35s ease;
}

.filter-btn {
    padding: 10px 18px;
    border-radius: 50px;
    font-weight: 700;
    background: var(--white);
    color: var(--muted);
    border: none;
    white-space: nowrap;
    cursor: pointer;
}

.filter-btn.active {
    background: var(--accent);
    color: white;
}

/* ================= BUSCADOR ================= */
.search-box {
    position: relative;
    margin-left: auto;
}

.search-box input {
    padding: 12px 40px;
    width: 240px;
    border-radius: 50px;
    border: none;
    outline: none;
    font-size: 14px;
}

.search-box i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary);
}

/* ================= GRID ================= */
.courses-grid {
    max-width: 1200px;
    margin: 40px auto 100px;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

/* ================= CARD ================= */
.course-card {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

/* BADGE */
.badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: var(--accent);
    color: white;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 800;
    border-radius: 8px;
    z-index: 5;
}

/* ================= CARRUSEL ================= */
.carousel {
    position: relative;
    height: 370px;
}

.carousel img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: none;
}

.carousel img.active {
    display: block;
}

.dots {
    position: absolute;
    bottom: 10px;
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 6px;
}

.dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
}

.dots span.active {
    background: white;
}

/* ================= BODY ================= */
.course-body {
    padding: 20px;
    flex-grow: 1;
}

.tag {
    font-size: 11px;
    font-weight: 800;
    color: var(--primary);
}

.course-body h3 {
    margin: 10px 0;
    font-size: 18px;
}

.description {
    font-size: 14px;
    color: var(--muted);
}

.author {
    margin-top: 10px;
    font-size: 13px;
}

.rating {
    margin-top: 10px;
    font-size: 14px;
    font-weight: 700;
}

/* ================= FOOTER ================= */
.course-footer {
    padding: 15px 20px;
    border-top: 1px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.btn-view {
    background: var(--primary);
    color: white;
    padding: 8px 18px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 14px;
}

.drive {
    font-size: 13px;
    font-weight: 700;
    color: var(--accent);
}

/* ================= PAGINACIÓN ================= */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    margin-bottom: 80px;
}

.pagination button {
    background: var(--primary);
    color: white;
    border: none;
    padding: 8px 18px;
    border-radius: 50px;
    font-weight: 700;
    cursor: pointer;
}

.pagination button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

#pageInfo {
    font-weight: 700;
}

body.dark-mode {
    background: #0f172a;
    color: #e5e7eb;
}

body.dark-mode .hero {
    background:
        linear-gradient(
            rgba(98, 75, 1, 0.859),
            rgb(14, 23, 37)
        ),
        url("../Images/hero.png") center / cover no-repeat;
}

body.dark-mode .btn-back,
body.dark-mode .filters-arrow,
body.dark-mode .filter-btn,
body.dark-mode .search-box input,
body.dark-mode .course-card,
body.dark-mode .pagination button {
    background: #020617;
    color: #e5e7eb;
}

body.dark-mode .filter-btn.active,
body.dark-mode .btn-view {
    background: var(--accent);
    color: #020617;
}

body.dark-mode .description,
body.dark-mode .author {
    color: #94a3b8;
}

body.dark-mode .tag {
    color: #93c5fd;
}

body.dark-mode .course-footer {
    border-color: #1e293b;
}

body.dark-mode .drive {
    color: #fbbf24;
}

body.dark-mode .dots span {
    background: rgba(255,255,255,0.35);
}

body.dark-mode .dots span.active {
    background: white;
}

:root {
    --primary: #0a359d;
    --accent: #ff9719;
    --bg: #f1f5f9;
    --text: #1e293b;
    --muted: #64748b;
    --white: #ffffff;
    --radius: 18px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Plus Jakarta Sans', sans-serif;
    background: var(--bg);
    color: var(--text);
}

/* ================= BOTÓN VOLVER ================= */
.btn-back {
    position: fixed;
    top: 20px;
    left: 20px;
    background: var(--white);
    padding: 10px 18px;
    border-radius: 50px;
    text-decoration: none;
    color: var(--primary);
    font-weight: 700;
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    z-index: 1000;
}

.btn-back:hover {
    background: var(--accent);
    color: white;
}

/* ================= HERO ================= */
.hero {
    height: 340px;
    background:
        linear-gradient(
            rgba(13, 66, 152, 0.55),
            rgba(98, 75, 1, 0.75)
        ),
        url("../Images/hero.png") center / cover no-repeat;
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 0 20px;
}

.hero h1 {
    font-size: 2.8rem;
    margin-bottom: 10px;
}

.yellow {
    color: var(--accent);
}

/* ================= FILTROS ================= */
.filters {
    margin-top: -40px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 20px;
    max-width: 1200px;
    margin-inline: auto;
}

.filters-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.filters-arrow {
    background: var(--white);
    border: none;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    box-shadow: 0 6px 18px rgba(0,0,0,0.12);
    cursor: pointer;
    color: var(--primary);
    flex-shrink: 0;
}

.filters-arrow:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.filters-viewport {
    overflow: hidden;
    width: 520px;
}

.filter-buttons {
    display: flex;
    gap: 10px;
    transition: transform 0.35s ease;
}

.filter-btn {
    padding: 10px 18px;
    border-radius: 50px;
    font-weight: 700;
    background: var(--white);
    color: var(--muted);
    border: none;
    white-space: nowrap;
    cursor: pointer;
}

.filter-btn.active {
    background: var(--accent);
    color: white;
}

/* ================= BUSCADOR ================= */
.search-box {
    position: relative;
    margin-left: auto;
}

.search-box input {
    padding: 12px 40px;
    width: 240px;
    border-radius: 50px;
    border: none;
    outline: none;
    font-size: 14px;
}

.search-box i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary);
}

/* ================= GRID ================= */
.courses-grid {
    max-width: 1200px;
    margin: 40px auto 100px;
    padding: 0 20px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
}

/* ================= CARD ================= */
.course-card {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
}

/* BADGE */
.badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: var(--accent);
    color: white;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 800;
    border-radius: 8px;
    z-index: 5;
}

/* ================= CARRUSEL ================= */
.carousel {
    position: relative;
    height: 370px;
}

.carousel img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: none;
}

.carousel img.active {
    display: block;
}

.dots {
    position: absolute;
    bottom: 10px;
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 6px;
}

.dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
}

.dots span.active {
    background: white;
}

/* ================= BODY ================= */
.course-body {
    padding: 20px;
    flex-grow: 1;
}

.tag {
    font-size: 11px;
    font-weight: 800;
    color: var(--primary);
}

.course-body h3 {
    margin: 10px 0;
    font-size: 18px;
}

.description {
    font-size: 14px;
    color: var(--muted);
}

.author {
    margin-top: 10px;
    font-size: 13px;
}

.rating {
    margin-top: 10px;
    font-size: 14px;
    font-weight: 700;
}

/* ================= FOOTER ================= */
.course-footer {
    padding: 15px 20px;
    border-top: 1px solid #e5e7eb;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.btn-view {
    background: var(--primary);
    color: white;
    padding: 8px 18px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 14px;
}

.drive {
    font-size: 13px;
    font-weight: 700;
    color: var(--accent);
}

/* ================= PAGINACIÓN ================= */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    margin-bottom: 80px;
}

.pagination button {
    background: var(--primary);
    color: white;
    border: none;
    padding: 8px 18px;
    border-radius: 50px;
    font-weight: 700;
    cursor: pointer;
}

.pagination button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

#pageInfo {
    font-weight: 700;
}

footer {
    background-color: var(--dark-color);
    color: var(--light-color);
    padding: 60px 0 20px;
    text-decoration: none;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-logo {
    flex: 1;
    min-width: 250px;
    margin-bottom: 30px;
}

.footer-logo span {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--light-color);
}

.footer-logo p {
    margin-top: 15px;
    color: #cbd5e1;
}

.footer-links {
    flex: 2;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.footer-column {
    min-width: 160px;
    margin-bottom: 30px;
}

.footer-column h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
}

.footer-column h3::after {
    content: "";
    position: absolute;
    width: 30px;
    height: 2px;
    background-color: var(--primary-color);
    bottom: -8px;
    left: 0;
}

.footer-column ul li {
    margin-bottom: 10px;
    text-decoration: none;
}

.footer-column ul li a {
    color: #cbd5e1;
    transition: var(--transition);
    text-decoration: none;
}

.footer-column ul li a:hover {
    color: var(--light-color);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    margin-top: 40px;
    border-top: 1px solid #334155;
}

.footer-bottom p {
    color: #cbd5e1;
    font-size: 0.9rem;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: #007BFF;
    color: var(--light-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    text-decoration: none;
}

.back-to-top.active {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
}

body.dark-mode {
    background: #0f172a;
    color: #e5e7eb;
}

body.dark-mode .hero {
    background:
        linear-gradient(
            rgba(98, 75, 1, 0.859),
            rgb(14, 23, 37)
        ),
        url("../Images/hero.png") center / cover no-repeat;
}

body.dark-mode .btn-back,
body.dark-mode .filters-arrow,
body.dark-mode .filter-btn,
body.dark-mode .search-box input,
body.dark-mode .course-card,
body.dark-mode .pagination button {
    background: #020617;
    color: #e5e7eb;
}

body.dark-mode .filter-btn.active,
body.dark-mode .btn-view {
    background: var(--accent);
    color: #020617;
}

body.dark-mode .description,
body.dark-mode .author {
    color: #94a3b8;
}

body.dark-mode .tag {
    color: #93c5fd;
}

body.dark-mode .course-footer {
    border-color: #1e293b;
}

body.dark-mode .drive {
    color: #fbbf24;
}

body.dark-mode .dots span {
    background: rgba(255,255,255,0.35);
}

body.dark-mode .dots span.active {
    background: white;
}
body.dark-mode footer {
    background-color: #08101e;
}

body.dark-mode .footer-column h3::after {
    background-color: var(--secondary-color);
}

body.dark-mode .back-to-top {
    background-color: var(--primary-color);
}

body.dark-mode .back-to-top:hover {
    background-color: var(--secondary-color);
}

/* ---------- LAPTOP PEQUEÑO / TABLET GRANDE ---------- */
@media (max-width: 1024px) {
    .hero {
        height: 300px;
    }

    .hero h1 {
        font-size: 2.4rem;
    }

    .filters-viewport {
        width: 420px;
    }

    .courses-grid {
        gap: 24px;
    }
}

/* ---------- TABLET ---------- */
@media (max-width: 768px) {
    .btn-back {
        top: 15px;
        left: 15px;
        padding: 8px 14px;
        font-size: 14px;
    }

    .hero {
        height: 260px;
        padding: 0 15px;
    }

    .hero h1 {
        font-size: 2rem;
        line-height: 1.2;
    }

    .filters {
        flex-direction: column;
        align-items: stretch;
        gap: 14px;
        margin-top: -30px;
    }

    .filters-left {
        justify-content: space-between;
    }

    .filters-viewport {
        width: 100%;
    }

    .search-box {
        width: 100%;
        margin-left: 0;
    }

    .search-box input {
        width: 100%;
        font-size: 13px;
    }

    .courses-grid {
        grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
        margin-top: 30px;
    }

    .carousel {
        height: 390px;
    }

    .course-body {
        padding: 16px;
    }

    .course-body h3 {
        font-size: 16px;
    }
}

/* ---------- MÓVIL GRANDE ---------- */
@media (max-width: 600px) {
    .hero {
        height: 240px;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .filters-arrow {
        width: 30px;
        height: 30px;
    }

    .filter-btn {
        padding: 8px 14px;
        font-size: 12px;
    }

    .carousel {
        height: 390px;
    }
}

/* ---------- MÓVIL ---------- */
@media (max-width: 480px) {
    .hero {
        height: 220px;
    }

    .hero h1 {
        font-size: 1.6rem;
    }

    .courses-grid {
        grid-template-columns: 1fr;
        padding: 0 10px;
    }

    .course-footer {
        flex-direction: column;
        gap: 8px;
        align-items: stretch;
    }

    .btn-view {
        width: 100%;
        text-align: center;
    }

    .pagination {
        gap: 10px;
    }

    .pagination button {
        padding: 6px 14px;
        font-size: 13px;
    }
    
    .carousel {
        height: 390px;
    }
}