/* ThorTeaches Student Pass Wall - Styles */

.tpw-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* ── Header & Controls ─────────────────────────────────────────────── */

.tpw-header {
    margin-bottom: 1.5rem;
}

.tpw-title {
    margin: 0 0 1rem 0;
    font-size: 1.75rem;
    font-weight: 700;
}

.tpw-controls {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
}

.tpw-search-wrap {
    position: relative;
    flex: 1 1 300px;
    max-width: 420px;
}

.tpw-search {
    width: 100%;
    padding: 0.6rem 1rem 0.6rem 2.4rem;
    font-size: 0.95rem;
    border: 2px solid #ddd;
    border-radius: 8px;
    outline: none;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.tpw-search:focus {
    border-color: #2563eb;
}

.tpw-search-icon {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1rem;
    opacity: 0.5;
    pointer-events: none;
}

.tpw-count {
    font-size: 0.85rem;
    color: #666;
    white-space: nowrap;
}

/* ── Year Tabs ─────────────────────────────────────────────────────── */

.tpw-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid #eee;
    padding-bottom: 0.5rem;
}

.tpw-tab {
    padding: 0.4rem 1rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: #555;
    background: none;
    border: 2px solid transparent;
    border-radius: 6px 6px 0 0;
    cursor: pointer;
    transition: all 0.15s;
    white-space: nowrap;
}

.tpw-tab:hover {
    color: #222;
    background: #f5f5f5;
}

.tpw-tab.active {
    color: #2563eb;
    border-color: #2563eb;
    border-bottom-color: transparent;
    background: #eff6ff;
}

.tpw-tab .tpw-tab-count {
    font-weight: 400;
    font-size: 0.8rem;
    color: #999;
    margin-left: 0.3rem;
}

.tpw-tab.active .tpw-tab-count {
    color: #60a5fa;
}

/* ── Cert Filter Pills ─────────────────────────────────────────────── */

.tpw-cert-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-bottom: 1.25rem;
}

.tpw-cert-pill {
    padding: 0.25rem 0.75rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: #555;
    background: #f0f0f0;
    border: 1px solid #ddd;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.15s;
}

.tpw-cert-pill:hover {
    background: #e0e0e0;
}

.tpw-cert-pill.active {
    color: #fff;
    background: #2563eb;
    border-color: #2563eb;
}

/* ── Image Grid ────────────────────────────────────────────────────── */

.tpw-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1rem;
}

/* ── Individual Card ───────────────────────────────────────────────── */

.tpw-card {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    background: #f8f8f8;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    transition: transform 0.2s, box-shadow 0.2s;
}

.tpw-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.12);
}

.tpw-card img {
    display: block;
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    background: #eee;
}

/* Placeholder shown before image loads */
.tpw-card img[src=""] ,
.tpw-card img:not([src]) {
    visibility: hidden;
}

.tpw-card-info {
    padding: 0.6rem 0.75rem;
}

.tpw-card-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: #222;
    margin: 0 0 0.2rem 0;
    line-height: 1.3;
}

.tpw-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: #888;
}

.tpw-card-cert {
    font-weight: 700;
    color: #2563eb;
    font-size: 0.78rem;
}

/* ── Loading / Empty States ────────────────────────────────────────── */

.tpw-sentinel {
    height: 1px;
}

.tpw-loading {
    text-align: center;
    padding: 2rem 0;
}

.tpw-spinner {
    display: inline-block;
    width: 32px;
    height: 32px;
    border: 3px solid #eee;
    border-top-color: #2563eb;
    border-radius: 50%;
    animation: tpw-spin 0.7s linear infinite;
}

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

.tpw-empty {
    text-align: center;
    padding: 3rem 1rem;
    font-size: 1rem;
    color: #999;
}

/* ── Responsive ────────────────────────────────────────────────────── */

@media (max-width: 600px) {
    .tpw-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 0.6rem;
    }

    .tpw-card-info {
        padding: 0.4rem 0.5rem;
    }

    .tpw-card-name {
        font-size: 0.8rem;
    }

    .tpw-tabs {
        gap: 0.25rem;
    }

    .tpw-tab {
        padding: 0.3rem 0.6rem;
        font-size: 0.8rem;
    }
}