/* Kurse Page Specific Styles */

/* Kurse Hero Wrapper with Sticky Sidebar */
.kurse-hero-wrapper {
    background-color: var(--creamy-beige);
    padding: 10rem 0 8rem;
    min-height: 100vh;
}

.kurse-hero-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 5%;
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 6rem;
    align-items: start;
}

/* Left Sidebar - Sticky */
.kurse-sidebar {
    position: sticky;
    top: 150px;
    height: fit-content;
}

.kurse-sidebar-content {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.kurse-sidebar h1 {
    font-family: 'Cormorant', serif;
    font-size: clamp(3rem, 5vw, 4.5rem);
    font-weight: 300;
    color: var(--deep-earth);
    line-height: 1.1;
    margin-bottom: 0;
}

.kurse-sidebar h1 em {
    font-style: italic;
    color: var(--warm-terracotta);
    display: block;
}

.kurse-intro {
    font-size: 1rem;
    color: var(--deep-earth);
    opacity: 0.8;
    line-height: 1.8;
    font-weight: 300;
}

/* Filter Container in Sidebar */
.filter-container {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.filter-title {
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--deep-earth);
    font-weight: 500;
    opacity: 0.6;
}

.filter-buttons {
    display: flex;
    gap: 0.8rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.6rem 1.5rem;
    background-color: transparent;
    color: var(--deep-earth);
    border: 1px solid rgba(93, 78, 55, 0.2);
    border-radius: 2px;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Montserrat', sans-serif;
}

.filter-btn:hover {
    background-color: rgba(93, 78, 55, 0.05);
    border-color: rgba(93, 78, 55, 0.4);
}

.filter-btn.active {
    background-color: var(--deep-earth);
    color: var(--white);
    border-color: var(--deep-earth);
}

/* Right Content Area - Scrollable */
.kurse-content {
    width: 100%;
}

/* Classes Grid Container */
.classes-grid-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4rem 3rem;
    width: 100%;
}

.class-grid-card {
    background-color: transparent;
    border-radius: 0;
    overflow: visible;
    transition: transform 0.3s ease;
    opacity: 1;
}

.class-grid-card.hidden {
    display: none;
}

.class-grid-card:hover {
    transform: translateY(-5px);
}

.class-grid-image {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    background-color: #ffffff;
}

.class-grid-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
    transition: transform 0.4s ease;
}

.class-grid-card:hover .class-grid-image img {
    transform: scale(1.02);
}

.class-grid-info {
    padding: 0;
    background-color: transparent;
}

/* Meta badges positioned under image */
.class-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.8rem;
    flex-wrap: wrap;
}

.class-badge {
    padding: 0.4rem 0.8rem;
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    border-radius: 20px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background-color: rgba(255, 255, 255, 0.95);
    color: var(--deep-earth);
    border: 1px solid rgba(93, 78, 55, 0.15);
    white-space: nowrap;
}

.class-badge::before {
    content: '✦';
    font-size: 0.7rem;
    opacity: 0.6;
}

.badge-beginner,
.badge-intermediate,
.badge-advanced {
    background-color: rgba(255, 255, 255, 0.95);
    color: var(--deep-earth);
}

.class-duration {
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--deep-earth);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.8rem;
    background-color: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    font-weight: 500;
    border: 1px solid rgba(93, 78, 55, 0.15);
    white-space: nowrap;
}

.class-duration::before {
    content: '○';
    font-size: 0.7rem;
    opacity: 0.6;
}

.class-instructor {
    display: inline-block;
    margin-bottom: 0.8rem;
}

.instructor-badge {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    background-color: rgba(39, 31, 27, 0.9);
    color: var(--white);
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    border-radius: 20px;
    font-weight: 500;
    white-space: nowrap;
}

.class-grid-title {
    font-family: 'Cormorant', serif;
    font-size: 1.75rem;
    color: var(--deep-earth);
    margin-bottom: 0.6rem;
    font-weight: 400;
    line-height: 1.3;
}

.class-grid-description {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--deep-earth);
    opacity: 0.7;
    margin-bottom: 1rem;
    font-weight: 300;
}

.view-classes-btn {
    display: inline-block;
    padding: 0;
    background-color: transparent;
    color: var(--deep-earth);
    text-decoration: underline;
    font-size: 0.75rem;
    font-weight: 400;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    border: none;
    transition: opacity 0.3s ease;
}

.view-classes-btn:hover {
    opacity: 0.6;
}

/* Fade In Animation */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .kurse-hero-container {
        grid-template-columns: 350px 1fr;
        gap: 4rem;
    }

    .kurse-sidebar {
        top: 120px;
    }
}

@media (max-width: 1024px) {
    .kurse-hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
        padding: 0 5%;
    }

    .kurse-sidebar {
        position: static;
        top: auto;
    }

    .kurse-hero-wrapper {
        padding: 10rem 0 4rem;
        min-height: auto;
    }

    .classes-grid-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .kurse-hero-wrapper {
        padding: 8rem 0 3rem;
    }

    .kurse-hero-container {
        gap: 2rem;
    }

    .kurse-sidebar h1 {
        font-size: clamp(2.5rem, 8vw, 4rem);
    }

    .filter-container {
        gap: 2rem;
    }

    .filter-buttons {
        gap: 0.8rem;
    }

    .filter-btn {
        padding: 0.5rem 1.2rem;
        font-size: 0.7rem;
    }

    .classes-grid-container {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .class-grid-image {
        aspect-ratio: 4 / 3;
    }

    .class-grid-info {
        padding: 0;
    }

    .class-grid-title {
        font-size: 1.4rem;
    }

    .class-meta {
        padding: 0.8rem 0.8rem;
    }

    .class-badge,
    .class-duration {
        font-size: 0.6rem;
        padding: 0.4rem 0.8rem;
    }

    .instructor-badge {
        font-size: 0.6rem;
        padding: 0.4rem 0.8rem;
    }
}

@media (max-width: 480px) {
    .kurse-hero-wrapper {
        padding: 7rem 0 2rem;
    }

    .kurse-hero-container {
        padding: 0 5%;
    }

    .kurse-sidebar-content {
        gap: 2rem;
    }

    .classes-grid-container {
        gap: 2rem;
    }

    .filter-buttons {
        gap: 0.6rem;
    }

    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.65rem;
    }
}