/* === SC Cambuur Kleuren === */
:root {
    --cambuur-blauw: #003DA5;
    --cambuur-geel: #FFD700;
    --cambuur-donker: #002366;
    --wit: #ffffff;
    --grijs-licht: #f4f4f4;
    --grijs: #666;
    --tekst: #222;
    --radius: 12px;
    --schaduw: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* === Reset & Basis === */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--grijs-licht);
    color: var(--tekst);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* === Header === */
header {
    position: sticky;
    top: 0;
    z-index: 100;
    color: var(--wit);
    padding: 1.1rem 1.2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    background:
        radial-gradient(circle at 85% -20%, rgba(255, 215, 0, 0.35), transparent 55%),
        linear-gradient(135deg, #0050d8 0%, var(--cambuur-blauw) 45%, var(--cambuur-donker) 100%);
    box-shadow: 0 4px 20px rgba(0, 30, 90, 0.35);
    overflow: hidden;
    isolation: isolate;
}

/* Diagonale streep-overlay (Cambuur signatuur) */
.header-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
    background-image: repeating-linear-gradient(
        135deg,
        transparent 0,
        transparent 28px,
        rgba(255, 215, 0, 0.06) 28px,
        rgba(255, 215, 0, 0.06) 30px
    );
    pointer-events: none;
}

/* Onderkant accent-lijn in geel */
header::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--cambuur-geel), transparent);
}

.header-content {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    min-width: 0;
}

.header-text {
    min-width: 0;
}

header h1 {
    font-size: 1.45rem;
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1.1;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

header h1 .accent {
    color: var(--cambuur-geel);
    font-style: italic;
}

.subtitle {
    font-size: 0.78rem;
    opacity: 0.85;
    margin-top: 3px;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    font-weight: 500;
}

.refresh-btn {
    background: rgba(255, 255, 255, 0.12);
    border: 1.5px solid rgba(255, 255, 255, 0.25);
    color: var(--wit);
    width: 42px;
    height: 42px;
    border-radius: 50%;
    cursor: pointer;
    transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
    display: grid;
    place-items: center;
    flex-shrink: 0;
    backdrop-filter: blur(6px);
}

.refresh-btn:hover {
    background: var(--cambuur-geel);
    color: var(--cambuur-donker);
    transform: rotate(-15deg);
}

.refresh-btn.spinning svg {
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@media (max-width: 380px) {
    header h1 { font-size: 1.25rem; }
    .subtitle { font-size: 0.7rem; }
}

/* === Tabs === */
.tabs {
    display: flex;
    background: var(--wit);
    box-shadow: var(--schaduw);
    position: sticky;
    top: 72px;
    z-index: 99;
}

.tab {
    flex: 1;
    padding: 0.9rem 1rem;
    border: none;
    background: var(--wit);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    color: var(--grijs);
    transition: all 0.2s;
    border-bottom: 3px solid transparent;
}

.tab.active {
    color: var(--cambuur-blauw);
    border-bottom-color: var(--cambuur-geel);
    background: rgba(0, 61, 165, 0.04);
}

.tab:hover:not(.active) {
    background: var(--grijs-licht);
}

/* === Tab Content === */
.tab-content {
    display: none;
    padding: 1rem;
    flex: 1;
}

.tab-content.active {
    display: block;
}

/* === Card List === */
.card-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    max-width: 700px;
    margin: 0 auto;
}

/* === Nieuws Card === */
.news-card {
    background: var(--wit);
    border-radius: var(--radius);
    padding: 1rem 1.1rem;
    box-shadow: var(--schaduw);
    transition: transform 0.2s, box-shadow 0.2s;
    text-decoration: none;
    color: inherit;
    display: block;
    border-left: 4px solid var(--cambuur-geel);
}

.news-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.news-card h3 {
    font-size: 1rem;
    line-height: 1.4;
    margin-bottom: 0.5rem;
    color: var(--tekst);
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--grijs);
}

.news-source {
    background: var(--cambuur-blauw);
    color: var(--wit);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* === Video Card === */
.video-card {
    background: var(--wit);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--schaduw);
    transition: transform 0.2s, box-shadow 0.2s;
    text-decoration: none;
    color: inherit;
    display: block;
}

.video-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.video-thumbnail {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    display: block;
}

.video-info {
    padding: 0.8rem 1rem;
}

.video-info h3 {
    font-size: 0.95rem;
    line-height: 1.3;
    margin-bottom: 0.4rem;
    color: var(--tekst);
}

.video-channel {
    font-size: 0.8rem;
    color: var(--grijs);
}

/* === API Key Notice === */
.api-key-notice {
    background: var(--wit);
    border-radius: var(--radius);
    padding: 1.2rem;
    box-shadow: var(--schaduw);
    max-width: 700px;
    margin: 0 auto 1rem;
    border-left: 4px solid var(--cambuur-geel);
}

.api-key-notice p {
    margin-bottom: 0.8rem;
    font-size: 0.95rem;
}

.api-key-notice input {
    width: 100%;
    padding: 0.7rem;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 0.9rem;
    margin-bottom: 0.6rem;
}

.api-key-notice input:focus {
    outline: none;
    border-color: var(--cambuur-blauw);
}

.api-key-notice button {
    background: var(--cambuur-blauw);
    color: var(--wit);
    border: none;
    padding: 0.6rem 1.5rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.api-key-notice button:hover {
    background: var(--cambuur-donker);
}

.api-key-notice details {
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--grijs);
}

.api-key-notice summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--cambuur-blauw);
}

.api-key-notice ol {
    margin-top: 0.5rem;
    padding-left: 1.2rem;
}

.api-key-notice li {
    margin-bottom: 0.3rem;
}

.api-key-notice a {
    color: var(--cambuur-blauw);
}

.api-key-notice.hidden {
    display: none;
}

/* === Loader === */
.loader {
    text-align: center;
    padding: 2rem;
    color: var(--grijs);
    font-size: 1rem;
}

/* === Error === */
.error-message {
    text-align: center;
    padding: 2rem;
    color: #c0392b;
    font-size: 0.95rem;
}

/* === Podcast Card === */
.podcast-card {
    background: var(--wit);
    border-radius: var(--radius);
    padding: 1rem 1.1rem;
    box-shadow: var(--schaduw);
    border-left: 4px solid var(--cambuur-blauw);
}

.podcast-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    font-size: 0.8rem;
    color: var(--grijs);
}

.podcast-badge {
    background: var(--cambuur-blauw);
    color: var(--wit);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.podcast-card h3 {
    font-size: 0.95rem;
    line-height: 1.4;
    margin-bottom: 0.6rem;
    color: var(--tekst);
}

.podcast-player {
    margin-bottom: 0.5rem;
}

.podcast-player audio {
    width: 100%;
    height: 40px;
    border-radius: 8px;
}

.podcast-publisher {
    font-size: 0.75rem;
    color: var(--grijs);
}

/* === Footer === */
footer {
    text-align: center;
    padding: 1.5rem;
    font-size: 0.75rem;
    color: var(--grijs);
    margin-top: auto;
}

/* === Responsive === */
@media (min-width: 768px) {
    header {
        padding: 1.2rem 2rem;
    }

    header h1 {
        font-size: 1.8rem;
    }

    .tab-content {
        padding: 1.5rem 2rem;
    }
}