/* ==========================================
   PDF LIST COLOR SWATCHES
   Slightly Darker Palette
   ========================================== */
.pdf-list-wrapper {
    --bg-color: #f5f5f5;
    --container-bg: #ffffff;
    --border-color: #d1d1d1;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --text-muted: #888888;
    --input-bg: #eeeeee;
    --input-border: #cccccc;
    --input-focus-border: #357abd;
    --input-focus-shadow: rgba(52, 122, 189, 0.15);
    --item-bg: #ffffff;
    --item-border: #e0e0e0;
    --item-hover-border: #357abd;
    --item-hover-shadow: rgba(0, 0, 0, 0.12);
    --button-bg: #ececec;
    --button-border: #cccccc;
    --button-text: #444444;
    --button-hover-bg: #e0e0e0;
    --button-active-bg: #357abd;
    --button-active-text: #ffffff;
    --icon-bg-start: #c0392b;
    --icon-bg-end: #962d22;
    --accent-color: #357abd;
    --shadow-subtle: rgba(0, 0, 0, 0.08);
    --shadow-medium: rgba(0, 0, 0, 0.12);
}

/* ==========================================
   PDF List Container
   ========================================== */
.pdf-list-wrapper {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    background: var(--container-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-sizing: border-box;
}

.pdf-list-wrapper * {
    box-sizing: border-box;
}

/* ==========================================
   Header Title
   ========================================== */
.pdf-list-title {
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

/* ==========================================
   Search Bar
   ========================================== */
.pdf-search-box {
    width: 100%;
    padding: 14px 18px;
    font-size: 15px;
    border: 2px solid var(--input-border);
    border-radius: 8px;
    margin-bottom: 25px;
    background: var(--input-bg);
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.pdf-search-box:focus {
    outline: none;
    border-color: var(--input-focus-border);
    background: var(--container-bg);
    box-shadow: 0 0 0 3px var(--input-focus-shadow);
}

.pdf-search-box::placeholder {
    color: var(--text-muted);
}

/* ==========================================
   Sort Container
   ========================================== */
.pdf-sort-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 20px;
}

.pdf-sort-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.pdf-order-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

.pdf-sort-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.pdf-sort-buttons {
    display: flex;
    gap: 8px;
}

.pdf-sort-buttons input[type="radio"] {
    display: none;
}

.pdf-sort-buttons label {
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 500;
    border-radius: 16px;
    cursor: pointer;
    border: 1px solid var(--button-border);
    background: var(--button-bg);
    color: var(--button-text);
    transition: all 0.2s ease;
}

.pdf-sort-buttons label:hover {
    border-color: var(--item-hover-border);
    color: var(--accent-color);
    background: var(--container-bg);
}

.pdf-sort-buttons input[type="radio"]:checked + label {
    background: var(--button-active-bg);
    border-color: var(--button-active-bg);
    color: var(--button-active-text);
}

/* ==========================================
   Order Toggle Button
   ========================================== */
.pdf-order-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 600;
    border-radius: 16px;
    cursor: pointer;
    border: 1px solid var(--button-border);
    background: var(--button-bg);
    color: var(--button-text);
    transition: all 0.2s ease;
}

.pdf-order-btn:hover {
    border-color: var(--item-hover-border);
    color: var(--accent-color);
    background: var(--container-bg);
}

.pdf-order-icon {
    font-size: 14px;
}

/* ==========================================
   PDF Item (Row)
   ========================================== */
.pdf-item {
    display: flex;
    align-items: center;
    background: var(--item-bg);
    padding: 16px;
    margin-bottom: 12px;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-primary);
    border: 1px solid var(--item-border);
    transition: all 0.2s ease;
}

.pdf-item:hover {
    border-color: var(--item-hover-border);
    box-shadow: 0 4px 12px var(--item-hover-shadow);
    transform: translateY(-1px);
}

/* ==========================================
   Icon
   ========================================== */
.pdf-icon {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--icon-bg-start) 0%, var(--icon-bg-end) 100%);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 11px;
    flex-shrink: 0;
    margin-right: 16px;
    box-shadow: 0 2px 4px rgba(192, 57, 43, 0.3);
}

/* ==========================================
   Text Info
   ========================================== */
.pdf-info {
    flex-grow: 1;
    min-width: 0;
}

.pdf-name {
    font-weight: 600;
    font-size: 15px;
    margin-bottom: 5px;
    color: var(--text-primary);
    word-break: break-word;
}

.pdf-meta {
    font-size: 12px;
    color: var(--text-secondary);
}

.pdf-meta span {
    margin-right: 8px;
}

/* ==========================================
   No Results Message
   ========================================== */
.pdf-no-results {
    text-align: center;
    color: var(--text-muted);
    padding: 30px 20px;
    font-size: 14px;
    display: none;
}

.pdf-no-results.visible {
    display: block;
}