/* ============================================
   Course Filter Pro v2.0 — Clean Minimal Style
   Uses block layout (no flexbox) for maximum
   WordPress theme compatibility.
   ============================================ */

/* ---------- Filter Card ---------- */
.cfr-filter-box {
    background: #ffffff !important;
    padding: 32px 28px 28px !important;
    border-radius: 16px !important;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.07), 0 1px 4px rgba(0, 0, 0, 0.04) !important;
    max-width: 400px !important;
    margin: 40px auto !important;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif !important;
    box-sizing: border-box !important;
    overflow: visible !important;
    float: none !important;
    position: relative !important;
}

.cfr-filter-box *,
.cfr-filter-box *::before,
.cfr-filter-box *::after {
    box-sizing: border-box !important;
}

/* ---------- Form — Block stacked (no flexbox) ---------- */
.cfr-filter-box .cfr-form {
    display: block !important;
    width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    float: none !important;
}

/* ---------- Selects ---------- */
.cfr-filter-box .cfr-form select {
    display: block !important;
    float: none !important;
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 0 16px 0 !important;
    padding: 14px 40px 14px 18px !important;
    font-size: 15px !important;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif !important;
    color: #555 !important;
    border: 1.5px solid #ddd !important;
    border-radius: 28px !important;
    background-color: #fff !important;
    appearance: none !important;
    -webkit-appearance: none !important;
    -moz-appearance: none !important;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='7' viewBox='0 0 12 7'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23999' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") !important;
    background-repeat: no-repeat !important;
    background-position: right 18px center !important;
    background-size: 12px !important;
    cursor: pointer !important;
    transition: border-color 0.25s ease, box-shadow 0.25s ease !important;
    height: auto !important;
    line-height: 1.4 !important;
    min-width: 0 !important;
    outline: none !important;
    -webkit-box-sizing: border-box !important;
}

.cfr-filter-box .cfr-form select:hover {
    border-color: #bbb !important;
}

.cfr-filter-box .cfr-form select:focus {
    outline: none !important;
    border-color: #0f7b3f !important;
    box-shadow: 0 0 0 3px rgba(15, 123, 63, 0.12) !important;
}

/* ---------- Search Button ---------- */
.cfr-filter-box .cfr-form button#cfr-find,
.cfr-filter-box .cfr-form button[type="button"] {
    display: block !important;
    float: none !important;
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 !important;
    padding: 15px 24px !important;
    font-size: 16px !important;
    font-weight: 700 !important;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif !important;
    letter-spacing: 0.3px !important;
    color: #fff !important;
    background: #0f7b3f !important;
    background-color: #0f7b3f !important;
    background-image: none !important;
    border: none !important;
    border-radius: 28px !important;
    cursor: pointer !important;
    transition: background-color 0.25s ease, transform 0.15s ease, box-shadow 0.25s ease !important;
    height: auto !important;
    line-height: 1.4 !important;
    text-transform: none !important;
    text-align: center !important;
    text-decoration: none !important;
    outline: none !important;
    -webkit-box-sizing: border-box !important;
    -webkit-appearance: none !important;
}

.cfr-filter-box .cfr-form button#cfr-find:hover,
.cfr-filter-box .cfr-form button[type="button"]:hover {
    background: #0d6b36 !important;
    background-color: #0d6b36 !important;
    transform: translateY(-1px) !important;
    box-shadow: 0 4px 16px rgba(15, 123, 63, 0.3) !important;
    color: #fff !important;
}

.cfr-filter-box .cfr-form button#cfr-find:active,
.cfr-filter-box .cfr-form button[type="button"]:active {
    transform: translateY(0) !important;
    box-shadow: 0 2px 6px rgba(15, 123, 63, 0.2) !important;
}

/* ---------- Inline Error Message ---------- */
.cfr-filter-box .cfr-error {
    color: #d32f2f !important;
    font-size: 13px !important;
    font-weight: 500 !important;
    margin: 8px 0 0 !important;
    padding: 10px 16px !important;
    background: #ffeaea !important;
    border-radius: 10px !important;
    border-left: 3px solid #d32f2f !important;
    display: none;
    animation: cfr-fade-in 0.3s ease;
    float: none !important;
    width: auto !important;
}

/* ---------- Popup Overlay ---------- */
.cfr-popup {
    display: none;
    position: fixed !important;
    z-index: 999999 !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100% !important;
    height: 100% !important;
    background-color: rgba(0, 0, 0, 0.55) !important;
    backdrop-filter: blur(4px) !important;
    -webkit-backdrop-filter: blur(4px) !important;
    animation: cfr-fade-in 0.3s ease;
    overflow-y: auto !important;
    padding: 0 !important;
    margin: 0 !important;
}

/* ---------- Popup Content ---------- */
.cfr-popup .cfr-popup-content {
    background-color: #fff !important;
    margin: 3vh auto !important;
    padding: 0 !important;
    border-radius: 16px !important;
    width: 92% !important;
    max-width: 960px !important;
    position: relative !important;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.25) !important;
    animation: cfr-slide-up 0.35s ease;
    overflow: hidden !important;
    display: flex !important;
    flex-direction: column !important;
    max-height: 94vh !important;
    float: none !important;
}

/* ---------- Popup Header ---------- */
.cfr-popup .cfr-popup-header {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    padding: 16px 20px !important;
    background: #f8f9fb !important;
    border-bottom: 1px solid #e8eaed !important;
    flex-shrink: 0 !important;
    margin: 0 !important;
}

.cfr-popup .cfr-popup-header span {
    font-size: 15px !important;
    font-weight: 600 !important;
    color: #333 !important;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif !important;
}

/* ---------- Close Button ---------- */
.cfr-popup .cfr-close {
    width: 34px !important;
    height: 34px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    border-radius: 8px !important;
    font-size: 22px !important;
    font-weight: 400 !important;
    color: #666 !important;
    cursor: pointer !important;
    transition: background 0.2s ease, color 0.2s ease !important;
    line-height: 1 !important;
    flex-shrink: 0 !important;
    background: transparent !important;
    border: none !important;
    padding: 0 !important;
    margin: 0 !important;
}

.cfr-popup .cfr-close:hover {
    background: #e8eaed !important;
    color: #333 !important;
}

/* ---------- Popup Iframe ---------- */
.cfr-popup .cfr-popup-body {
    flex: 1 !important;
    position: relative !important;
    min-height: 300px !important;
    padding: 0 !important;
    margin: 0 !important;
}

.cfr-popup .cfr-popup-body iframe {
    display: block !important;
    width: 100% !important;
    height: 80vh !important;
    max-height: calc(94vh - 66px) !important;
    border: none !important;
    margin: 0 !important;
    padding: 0 !important;
}

/* ---------- Loading Spinner ---------- */
.cfr-popup .cfr-loader {
    position: absolute !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    background: #fff !important;
    z-index: 2 !important;
    transition: opacity 0.3s ease !important;
}

.cfr-popup .cfr-loader.cfr-hidden {
    opacity: 0 !important;
    pointer-events: none !important;
}

.cfr-popup .cfr-spinner {
    width: 40px !important;
    height: 40px !important;
    border: 3px solid #e0e4ea !important;
    border-top-color: #0f7b3f !important;
    border-radius: 50% !important;
    animation: cfr-spin 0.8s linear infinite !important;
    background: transparent !important;
    padding: 0 !important;
    margin: 0 !important;
}

/* ---------- Animations ---------- */
@keyframes cfr-fade-in {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes cfr-slide-up {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.97);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

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

/* ============================================
   Responsive — Tablet (≤ 768px)
   ============================================ */
@media (max-width: 768px) {
    .cfr-filter-box {
        margin: 24px 16px !important;
        padding: 28px 22px 24px !important;
        border-radius: 14px !important;
        max-width: 100% !important;
    }

    .cfr-popup .cfr-popup-content {
        width: 96% !important;
        margin: 2vh auto !important;
        max-height: 96vh !important;
        border-radius: 12px !important;
    }

    .cfr-popup .cfr-popup-body iframe {
        height: 75vh !important;
    }
}

/* ============================================
   Responsive — Small phone (≤ 480px)
   ============================================ */
@media (max-width: 480px) {
    .cfr-filter-box {
        margin: 16px 10px !important;
        padding: 24px 18px 20px !important;
        border-radius: 12px !important;
    }

    .cfr-filter-box .cfr-form select {
        padding: 13px 36px 13px 16px !important;
        font-size: 14px !important;
        margin-bottom: 14px !important;
    }

    .cfr-filter-box .cfr-form button#cfr-find,
    .cfr-filter-box .cfr-form button[type="button"] {
        padding: 14px !important;
        font-size: 15px !important;
    }

    .cfr-popup .cfr-popup-content {
        width: 100% !important;
        margin: 0 !important;
        border-radius: 0 !important;
        max-height: 100vh !important;
        height: 100vh !important;
    }

    .cfr-popup .cfr-popup-body iframe {
        height: calc(100vh - 58px) !important;
        max-height: none !important;
    }

    .cfr-popup .cfr-popup-header {
        padding: 12px 16px !important;
    }
}