:root {
    --courses-bg: #fbf7e9;
    --courses-surface: #ffffff;
    --courses-gold: #d0aa43;
    --courses-gold-light: #e5c15a;
    --courses-gold-dark: #ad8730;
    --courses-ink: #161616;
    --courses-dark: #20252b;
    --courses-muted: #66635d;
    --courses-danger: #d63333;
    --courses-danger-dark: #b72424;
}

.courses-page {
    min-height: calc(100vh - 150px);
    padding: 58px 24px 78px;
    color: var(--courses-ink);
    background: radial-gradient(circle at 9% 22%, rgba(208, 170, 67, 0.08), transparent 28%), linear-gradient(180deg, #fdfbf5 0%, var(--courses-bg) 100%);
}

    .courses-page *,
    .courses-page *::before,
    .courses-page *::after {
        box-sizing: border-box;
    }

.courses-container {
    width: min(100%, 1200px);
    margin-inline: auto;
}

.courses-hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    margin-bottom: 28px;
}

.courses-heading {
    max-width: 720px;
}

.courses-eyebrow {
    display: block;
    margin-bottom: 7px;
    color: var(--courses-gold-dark);
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.courses-heading h1 {
    margin: 0;
    color: var(--courses-ink);
    font-size: clamp(2.25rem, 4vw, 3.3rem);
    font-weight: 900;
    line-height: 1.2;
}

.courses-heading p {
    margin: 12px 0 0;
    color: #33312e;
    font-size: 1.08rem;
    line-height: 1.8;
}

.courses-page .add-course-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    gap: 9px;
    min-height: 48px;
    padding: 11px 23px;
    color: #1a1813;
    background: linear-gradient(100deg, var(--courses-gold) 0%, var(--courses-gold-light) 100%);
    border: 0;
    border-radius: 10px;
    box-shadow: 0 7px 16px rgba(173, 135, 48, 0.18);
    font-weight: 800;
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

    .courses-page .add-course-button:hover {
        color: #1a1813;
        filter: brightness(0.98);
        box-shadow: 0 9px 20px rgba(173, 135, 48, 0.24);
        transform: translateY(-2px);
    }

.course-filters {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 11px;
    margin-bottom: 28px;
    padding: 4px 2px;
    overflow-x: auto;
    scrollbar-width: thin;
}

.courses-page .course-filter {
    min-width: max-content;
    padding: 10px 20px;
    color: #fff;
    background: var(--courses-dark);
    border: 1px solid var(--courses-dark);
    border-radius: 999px;
    box-shadow: 0 3px 7px rgba(26, 30, 34, 0.1);
    font-weight: 700;
    cursor: pointer;
    transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

    .courses-page .course-filter:hover {
        color: #fff;
        background: #30363d;
        border-color: #30363d;
        transform: translateY(-1px);
    }

    .courses-page .course-filter.is-active {
        color: #1b1811;
        background: linear-gradient(100deg, var(--courses-gold) 0%, var(--courses-gold-light) 100%);
        border-color: var(--courses-gold);
    }

    .courses-page .course-filter:focus-visible,
    .courses-page .course-action:focus-visible,
    .courses-page .add-course-button:focus-visible {
        outline: 3px solid rgba(208, 170, 67, 0.35);
        outline-offset: 3px;
    }

.course-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 25px;
}

.course-item {
    min-width: 0;
}

    .course-item[hidden] {
        display: none !important;
    }

.course-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 18px;
    overflow: hidden;
    background: var(--courses-surface);
    border: 1px solid rgba(27, 27, 27, 0.07);
    border-radius: 15px;
    box-shadow: 0 10px 24px rgba(40, 36, 27, 0.12);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

    .course-card:hover {
        box-shadow: 0 15px 30px rgba(40, 36, 27, 0.16);
        transform: translateY(-4px);
    }

.course-card__media {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #eee9dc;
    border-radius: 11px;
}

    .course-card__media img {
        display: block;
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.35s ease;
    }

.course-card:hover .course-card__media img {
    transform: scale(1.025);
}

.course-card__placeholder {
    display: grid;
    place-items: center;
    width: 100%;
    height: 100%;
    color: var(--courses-gold-dark);
    background: radial-gradient(circle at 50% 45%, rgba(208, 170, 67, 0.18), transparent 36%), #f3eee2;
}

    .course-card__placeholder i {
        font-size: 4.2rem;
    }

.course-card__body {
    display: flex;
    flex: 1;
    flex-direction: column;
    padding: 23px 5px 18px;
}

    .course-card__body h2 {
        margin: 0;
        color: var(--courses-ink);
        font-size: clamp(1.24rem, 2vw, 1.55rem);
        font-weight: 900;
        line-height: 1.45;
    }

.course-card__description {
    display: -webkit-box;
    margin: 10px 0 0;
    overflow: hidden;
    color: var(--courses-muted);
    font-size: 0.93rem;
    line-height: 1.75;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
}

.course-card__year {
    display: flex;
    align-items: center;
    gap: 5px;
    margin: auto 0 0;
    padding-top: 13px;
    color: #302f2c;
    font-size: 0.97rem;
}

    .course-card__year strong {
        color: var(--courses-ink);
        font-size: 1rem;
    }

.course-card__actions {
    display: flex;
    gap: 10px;
    margin-top: auto;
}

.courses-page .course-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 45px;
    padding: 9px 14px;
    color: #fff;
    border: 0;
    border-radius: 8px;
    box-shadow: 0 4px 9px rgba(26, 27, 28, 0.12);
    font-weight: 700;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: filter 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

    .courses-page .course-action:hover {
        color: #fff;
        filter: brightness(0.95);
        box-shadow: 0 6px 13px rgba(26, 27, 28, 0.17);
        transform: translateY(-1px);
    }

.course-card__actions--admin .course-action {
    flex: 1 1 0;
}

.course-action--details {
    color: #1b1811 !important;
    background: linear-gradient(100deg, var(--courses-gold) 0%, var(--courses-gold-light) 100%);
}

.course-action--edit {
    background: var(--courses-dark);
}

.course-action--delete {
    background: linear-gradient(100deg, var(--courses-danger-dark) 0%, var(--courses-danger) 100%);
}

.course-card__actions--student,
.course-enroll-form {
    width: 100%;
}

    .course-card__actions--student .course-action {
        width: 100%;
    }

.course-action--study {
    color: #1b1811 !important;
    background: linear-gradient(100deg, var(--courses-gold) 0%, var(--courses-gold-light) 100%);
}

.course-action--enroll {
    background: var(--courses-dark);
}

.course-empty-state {
    max-width: 520px;
    margin: 38px auto 0;
    padding: 35px 24px;
    color: var(--courses-muted);
    background: rgba(255, 255, 255, 0.78);
    border: 1px dashed rgba(173, 135, 48, 0.38);
    border-radius: 14px;
    text-align: center;
}

    .course-empty-state[hidden] {
        display: none !important;
    }

    .course-empty-state i {
        margin-bottom: 15px;
        color: var(--courses-gold-dark);
        font-size: 2.5rem;
    }

    .course-empty-state h2 {
        margin: 0;
        color: var(--courses-ink);
        font-size: 1.3rem;
        font-weight: 800;
    }

    .course-empty-state p {
        margin: 8px 0 0;
    }

@media (max-width: 991.98px) {
    .courses-page {
        padding-top: 45px;
    }

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

    .course-filters {
        justify-content: flex-start;
    }
}

@media (max-width: 767.98px) {
    .courses-page {
        padding: 36px 16px 58px;
    }

    .courses-hero {
        align-items: stretch;
        flex-direction: column;
        gap: 20px;
    }

    .courses-heading h1 {
        font-size: 2.25rem;
    }

    .courses-heading p {
        font-size: 1rem;
    }

    .courses-page .add-course-button {
        align-self: flex-start;
    }

    .course-filters {
        margin-inline: -16px;
        padding-inline: 16px;
    }
}

@media (max-width: 575.98px) {
    .course-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .course-card {
        padding: 14px;
    }

    .course-card__body {
        padding: 20px 3px 16px;
    }

    .course-card__actions {
        gap: 8px;
    }

    .courses-page .course-action {
        min-height: 43px;
        padding-inline: 10px;
        font-size: 0.92rem;
    }
}

@media (max-width: 380px) {
    .course-card__actions--admin {
        flex-wrap: wrap;
    }

        .course-card__actions--admin .course-action {
            flex-basis: calc(50% - 4px);
        }

        .course-card__actions--admin .course-action--details {
            flex-basis: 100%;
        }
}

@media (prefers-reduced-motion: reduce) {
    .courses-page *,
    .courses-page *::before,
    .courses-page *::after {
        scroll-behavior: auto !important;
        transition: none !important;
    }
}