/* ==========================================================================
   AIEH SMR — Frontend CSS (Settings UI + Public View)
   v7.0
   ========================================================================== */

:root {
    --smr-bg:        #f8fafc;
    --smr-surface:   #ffffff;
    --smr-surface-2: #f1f5f9;
    --smr-surface-3: #e2e8f0;
    --smr-border:    #e5e7eb;
    --smr-border-2:  #cbd5e1;
    --smr-text:      #0f172a;
    --smr-text-2:    #475569;
    --smr-text-3:    #64748b;
    --smr-text-mute: #94a3b8;
    --smr-primary:   #0f172a;
    --smr-accent:    #2563eb;
    --smr-accent-2:  #1d4ed8;
    --smr-accent-soft: #eff6ff;
    --smr-success:   #059669;
    --smr-success-soft: #ecfdf5;
    --smr-danger:    #dc2626;
    --smr-danger-soft: #fef2f2;
    --smr-radius:    10px;
    --smr-radius-sm: 6px;
    --smr-radius-lg: 14px;
    --smr-shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
    --smr-shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.05);
    --smr-shadow-md: 0 4px 10px rgba(15, 23, 42, 0.08);
    --smr-shadow-lg: 0 10px 25px rgba(15, 23, 42, 0.12);
    --smr-transition: 0.15s ease;
}

/* ========================================================================== */
/* Settings Wrapper                                                           */
/* ========================================================================== */
.aiginex-smr-settings-wrapper {
    font-family: 'Inter', 'Segoe UI', 'Noto Sans Bengali', 'Kalpurush', 'SolaimanLipi', system-ui, -apple-system, sans-serif;
    color: var(--smr-text);
    background: var(--smr-bg);
    border-radius: var(--smr-radius-lg);
    overflow: hidden;
    border: 1px solid var(--smr-border);
    box-shadow: var(--smr-shadow-sm);
}

/* Page Head ---------------------------------------------------------------- */
.smr-page-head {
    display: flex; align-items: center; justify-content: space-between; gap: 24px;
    padding: 22px 28px;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    border-bottom: 1px solid var(--smr-border);
    flex-wrap: wrap;
}
.smr-page-title { margin: 0; font-size: 1.55rem; font-weight: 700; color: var(--smr-primary); }
.smr-page-sub   { margin: 4px 0 0; font-size: 0.9rem; color: var(--smr-text-3); }
.smr-page-stats { display: flex; gap: 10px; }
.smr-stat {
    display: flex; flex-direction: column; align-items: center;
    background: var(--smr-surface); border: 1px solid var(--smr-border);
    border-radius: var(--smr-radius); padding: 10px 18px; min-width: 72px;
    box-shadow: var(--smr-shadow-xs);
}
.smr-stat-num { font-size: 1.4rem; font-weight: 700; color: var(--smr-accent); line-height: 1; }
.smr-stat-lbl { font-size: 0.72rem; color: var(--smr-text-3); text-transform: uppercase; letter-spacing: 0.04em; margin-top: 4px; }

/* Messages */
.smr-messages { padding: 0 28px; }
.smr-messages:empty { display: none; }
.aiginex-smr-msg {
    padding: 10px 14px; border-radius: var(--smr-radius-sm); margin: 12px 0;
    border-left: 4px solid; font-size: 0.9rem;
    transition: opacity 0.3s ease;
}
.aiginex-smr-msg.success { background: var(--smr-success-soft); color: var(--smr-success); border-color: var(--smr-success); }
.aiginex-smr-msg.error   { background: var(--smr-danger-soft);  color: var(--smr-danger);  border-color: var(--smr-danger); }
.aiginex-smr-msg.smr-msg-fade { opacity: 0; }

/* Tabs --------------------------------------------------------------------- */
.smr-tabs-wrap { display: flex; flex-direction: column; }

.smr-tabs-nav {
    display: flex; gap: 4px; overflow-x: auto;
    padding: 10px 16px 0;
    background: var(--smr-surface);
    border-bottom: 1px solid var(--smr-border);
    position: sticky; top: 0; z-index: 10;
}
.smr-tab-btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 16px;
    background: transparent; border: 0; border-radius: var(--smr-radius-sm) var(--smr-radius-sm) 0 0;
    color: var(--smr-text-2); cursor: pointer; font-family: inherit;
    font-size: 0.92rem; font-weight: 600;
    white-space: nowrap;
    transition: background var(--smr-transition), color var(--smr-transition);
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
}
.smr-tab-btn:hover { background: var(--smr-surface-2); color: var(--smr-primary); }
.smr-tab-btn.active {
    color: var(--smr-accent); border-bottom-color: var(--smr-accent);
    background: var(--smr-accent-soft);
}
.smr-tab-ico { font-size: 1.05rem; line-height: 1; }

.smr-tab-panel { display: none; padding: 24px 28px 32px; }
.smr-tab-panel.active { display: block; }

.smr-panel-grid {
    display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 20px;
}
@media (max-width: 960px) { .smr-panel-grid { grid-template-columns: 1fr; } }

/* Cards -------------------------------------------------------------------- */
.smr-card {
    background: var(--smr-surface);
    border: 1px solid var(--smr-border);
    border-radius: var(--smr-radius);
    box-shadow: var(--smr-shadow-xs);
}
.smr-card-pad { padding: 20px; }
.smr-card-head { margin-bottom: 16px; display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.smr-card-title { margin: 0; font-size: 1.05rem; font-weight: 700; color: var(--smr-primary); }
.smr-card-sub   { margin: 4px 0 0; font-size: 0.85rem; color: var(--smr-text-3); flex-basis: 100%; }
.smr-count-pill {
    display: inline-block; background: var(--smr-accent-soft); color: var(--smr-accent);
    padding: 2px 10px; border-radius: 999px; font-size: 0.78rem; font-weight: 600; margin-left: 6px;
}

/* Forms -------------------------------------------------------------------- */
.smr-form { display: flex; flex-direction: column; gap: 14px; }
.smr-field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.smr-field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 600px) { .smr-field-row { grid-template-columns: 1fr; } }
.smr-field-inline { flex-direction: column; }

.smr-label { font-size: 0.82rem; font-weight: 600; color: var(--smr-text-2); }
.smr-label-sm { font-size: 0.75rem; color: var(--smr-text-3); text-transform: uppercase; letter-spacing: 0.04em; }

.smr-input, .smr-file {
    width: 100%; padding: 9px 12px; border-radius: var(--smr-radius-sm);
    border: 1px solid var(--smr-border-2); background: var(--smr-surface);
    font-family: inherit; font-size: 0.92rem; color: var(--smr-text);
    transition: border-color var(--smr-transition), box-shadow var(--smr-transition);
    box-sizing: border-box;
}
.smr-input:focus {
    outline: none; border-color: var(--smr-accent);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}
.smr-input-sm { padding: 7px 10px; font-size: 0.85rem; }
.smr-input-search { padding-left: 34px; background-position: 10px center; }

.smr-hint { margin: 6px 0 0; font-size: 0.8rem; color: var(--smr-text-3); }
.smr-hint code {
    background: var(--smr-surface-2); padding: 1px 6px; border-radius: 4px;
    font-size: 0.82rem; color: var(--smr-accent-2);
}

.smr-form-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 4px; }

/* Buttons ------------------------------------------------------------------ */
.smr-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 9px 16px; border-radius: var(--smr-radius-sm);
    border: 1px solid transparent; cursor: pointer;
    font-family: inherit; font-size: 0.9rem; font-weight: 600;
    transition: all var(--smr-transition); text-decoration: none;
    line-height: 1;
}
.smr-btn-primary   { background: var(--smr-accent); color: #fff; }
.smr-btn-primary:hover { background: var(--smr-accent-2); }
.smr-btn-secondary { background: var(--smr-surface); color: var(--smr-text); border-color: var(--smr-border-2); }
.smr-btn-secondary:hover { background: var(--smr-surface-2); border-color: var(--smr-accent); color: var(--smr-accent); }
.smr-btn-ghost     { background: transparent; color: var(--smr-text-3); }
.smr-btn-ghost:hover { color: var(--smr-primary); background: var(--smr-surface-2); }
.smr-btn-sm { padding: 6px 12px; font-size: 0.8rem; }

/* Editor wrap -------------------------------------------------------------- */
.smr-editor-wrap { border: 1px solid var(--smr-border); border-radius: var(--smr-radius-sm); overflow: hidden; }
.smr-editor-wrap .wp-editor-wrap { margin: 0; }
.smr-editor-wrap .wp-editor-container { border: 0; }

/* Entries toolbar ---------------------------------------------------------- */
.smr-entries-toolbar {
    display: flex; flex-direction: column; gap: 10px; margin-bottom: 12px;
}
.smr-search-wrap { position: relative; }
.smr-search-wrap::before {
    content: '🔎'; position: absolute; top: 50%; left: 10px;
    transform: translateY(-50%); font-size: 0.9rem; opacity: 0.6;
    pointer-events: none;
}
.smr-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.smr-chip {
    background: var(--smr-surface-2); color: var(--smr-text-2);
    border: 1px solid transparent; border-radius: 999px;
    padding: 4px 12px; font-size: 0.8rem; font-weight: 600;
    cursor: pointer; font-family: inherit;
    transition: all var(--smr-transition);
}
.smr-chip:hover { background: var(--smr-accent-soft); color: var(--smr-accent); }
.smr-chip.active { background: var(--smr-accent); color: #fff; }

/* Entries list ------------------------------------------------------------- */
.smr-entries-list { display: flex; flex-direction: column; gap: 4px; }
.smr-group-header {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 12px; margin-top: 12px;
    background: var(--smr-surface-2); border-radius: var(--smr-radius-sm);
    border: 1px solid var(--smr-border);
}
.smr-group-header:first-child { margin-top: 0; }
.smr-group-header-icon {
    width: 28px; height: 28px; display: flex; align-items: center; justify-content: center;
    background: var(--smr-surface); border-radius: var(--smr-radius-sm);
    border: 1px solid var(--smr-border);
    overflow: hidden;
}
.smr-group-header-icon img { width: 70%; height: 70%; object-fit: contain; }
.smr-group-header-icon i   { color: var(--smr-accent); font-size: 0.95rem; }
.smr-group-header-label { font-weight: 700; color: var(--smr-primary); font-size: 0.92rem; flex: 1; }
.smr-group-header-meta  { display: flex; align-items: center; gap: 8px; }
.smr-order-badge {
    background: var(--smr-accent); color: #fff; padding: 2px 8px;
    border-radius: 999px; font-size: 0.72rem; font-weight: 700;
}
.smr-group-count { font-size: 0.78rem; color: var(--smr-text-3); }

.smr-entry-row {
    display: flex; align-items: center; justify-content: space-between; gap: 8px;
    padding: 10px 12px;
    background: var(--smr-surface); border: 1px solid var(--smr-border);
    border-radius: var(--smr-radius-sm);
    transition: all var(--smr-transition);
}
.smr-entry-row:hover { border-color: var(--smr-accent); box-shadow: var(--smr-shadow-xs); }
.smr-entry-main { min-width: 0; flex: 1; }
.smr-entry-title { font-weight: 600; color: var(--smr-primary); font-size: 0.92rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.smr-entry-meta  { display: flex; gap: 10px; margin-top: 3px; }
.smr-entry-date  { font-size: 0.75rem; color: var(--smr-text-3); }
.smr-entry-actions { display: flex; gap: 2px; flex-shrink: 0; }
.smr-icon-btn {
    width: 30px; height: 30px; display: inline-flex;
    align-items: center; justify-content: center;
    background: transparent; border: 0; border-radius: var(--smr-radius-sm);
    color: var(--smr-text-3); text-decoration: none; cursor: pointer;
    font-family: inherit; font-size: 0.9rem; transition: all var(--smr-transition);
}
.smr-icon-btn:hover { background: var(--smr-surface-2); color: var(--smr-primary); }
.smr-icon-edit:hover { color: var(--smr-accent); }
.smr-icon-del:hover  { color: var(--smr-danger); background: var(--smr-danger-soft); }

/* Empty states ------------------------------------------------------------- */
.smr-empty {
    text-align: center; padding: 36px 20px;
    background: var(--smr-surface-2);
    border-radius: var(--smr-radius); border: 1px dashed var(--smr-border-2);
}
.smr-empty-ico { font-size: 2.25rem; margin-bottom: 8px; }
.smr-empty-title { font-size: 1rem; font-weight: 700; color: var(--smr-primary); margin-bottom: 4px; }
.smr-empty-sub { font-size: 0.85rem; color: var(--smr-text-3); }

/* Two-col layout (signature, letterpad) ------------------------------------ */
.smr-two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 820px) { .smr-two-col { grid-template-columns: 1fr; } }

.smr-preview-panel {
    background: var(--smr-surface-2); border: 1px dashed var(--smr-border-2);
    border-radius: var(--smr-radius); padding: 14px;
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    min-height: 120px; justify-content: center;
}
.smr-preview-canvas {
    background: var(--smr-surface); padding: 10px;
    border-radius: var(--smr-radius-sm);
    min-width: 180px; min-height: 80px; display: flex; align-items: center; justify-content: center;
    border: 1px solid var(--smr-border);
}
.smr-preview-mini img { max-width: 240px; }
.smr-preview-caption { font-size: 0.8rem; color: var(--smr-text-3); }
.smr-preview-err { color: var(--smr-danger); font-size: 1.2rem; }

.smr-preview-a4 { padding: 10px; }
.smr-preview-a4-inner {
    width: 100%; aspect-ratio: 1 / 1.414;
    background: #fff; border: 1px solid var(--smr-border);
    box-shadow: var(--smr-shadow-sm); border-radius: 4px;
    overflow: hidden; display: flex; align-items: center; justify-content: center;
}
.smr-preview-a4-inner img { width: 100%; height: 100%; object-fit: contain; display: block; }
.smr-preview-a4-inner.has-img { align-items: stretch; justify-content: stretch; }

/* Divider & subhead -------------------------------------------------------- */
.smr-divider { height: 1px; background: var(--smr-border); margin: 18px 0; }
.smr-subhead { margin: 0 0 6px; font-size: 0.98rem; font-weight: 700; color: var(--smr-primary); }

.smr-margins-grid {
    display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px;
}
@media (max-width: 640px) { .smr-margins-grid { grid-template-columns: repeat(2, 1fr); } }

/* Category grid ------------------------------------------------------------ */
.smr-cat-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 12px;
}
.smr-cat-item {
    display: flex; gap: 10px; align-items: stretch;
    background: var(--smr-surface); border: 1px solid var(--smr-border);
    border-radius: var(--smr-radius); overflow: hidden;
    transition: all var(--smr-transition);
}
.smr-cat-item:hover { border-color: var(--smr-accent); box-shadow: var(--smr-shadow-sm); }
.smr-cat-serial {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    padding: 10px 6px; min-width: 52px;
    background: var(--smr-accent-soft); color: var(--smr-accent);
    border-right: 1px solid var(--smr-border);
}
.smr-serial-pos { font-size: 1.2rem; font-weight: 800; line-height: 1; }
.smr-serial-lbl { font-size: 0.62rem; margin-top: 4px; text-transform: uppercase; letter-spacing: 0.05em; }
.smr-serial-orderval { font-size: 0.68rem; font-weight: 700; }
.smr-serial-orderval-empty { color: var(--smr-text-mute); font-weight: 500; }

.smr-cat-body-wrap { flex: 1; padding: 10px 12px; display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.smr-cat-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.smr-cat-preview {
    width: 32px; height: 32px; border-radius: var(--smr-radius-sm);
    display: flex; align-items: center; justify-content: center;
    background: var(--smr-surface-2);
    flex-shrink: 0;
    overflow: hidden;
}
.smr-cat-preview img { width: 75%; height: 75%; object-fit: contain; }
.smr-cat-preview.has-img { background: var(--smr-accent-soft); }
.smr-cat-name { font-weight: 700; color: var(--smr-primary); font-size: 0.92rem; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* Switch ------------------------------------------------------------------- */
.smr-switch {
    position: relative; display: inline-flex; align-items: center; gap: 6px;
    cursor: pointer; user-select: none;
}
.smr-switch input { position: absolute; opacity: 0; pointer-events: none; }
.smr-switch-slider {
    width: 32px; height: 18px; background: var(--smr-surface-3);
    border-radius: 999px; position: relative;
    transition: background var(--smr-transition);
}
.smr-switch-slider::after {
    content: ''; position: absolute; top: 2px; left: 2px;
    width: 14px; height: 14px; border-radius: 50%;
    background: #fff; box-shadow: var(--smr-shadow-xs);
    transition: transform var(--smr-transition);
}
.smr-switch input:checked + .smr-switch-slider { background: var(--smr-accent); }
.smr-switch input:checked + .smr-switch-slider::after { transform: translateX(14px); }
.smr-switch-label { font-size: 0.72rem; color: var(--smr-text-3); font-weight: 600; }

.smr-cat-fields { display: grid; grid-template-columns: 1.4fr 0.8fr; gap: 8px; }

/* FA Picker ---------------------------------------------------------------- */
.smr-fa-picker-wrap { position: relative; }
.smr-fa-dropdown {
    position: absolute; top: calc(100% + 4px); left: 0; right: 0;
    background: var(--smr-surface); border: 1px solid var(--smr-border);
    border-radius: var(--smr-radius-sm); box-shadow: var(--smr-shadow-md);
    z-index: 50; padding: 6px;
    max-height: 240px; overflow: auto;
    display: grid; grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 4px;
}
.smr-fa-opt {
    display: flex; flex-direction: column; align-items: center;
    padding: 6px 4px; background: transparent; border: 1px solid transparent;
    border-radius: var(--smr-radius-sm); cursor: pointer;
    font-family: inherit; font-size: 0.6rem; color: var(--smr-text-3);
    transition: all var(--smr-transition); text-align: center;
    gap: 4px;
}
.smr-fa-opt i { font-size: 1rem; color: var(--smr-text-2); }
.smr-fa-opt:hover { background: var(--smr-accent-soft); border-color: var(--smr-accent); color: var(--smr-accent); }
.smr-fa-opt:hover i { color: var(--smr-accent); }
.smr-fa-opt span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%; }

/* Copy row ----------------------------------------------------------------- */
.smr-copy-row { display: flex; gap: 8px; align-items: center; }
.smr-copy-row .smr-input { flex: 1; }
.smr-upload-row { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.smr-upload-row .smr-file { flex: 1; min-width: 200px; }

.smr-search-form { display: flex; gap: 8px; margin-bottom: 12px; }
.smr-search-form .smr-input { flex: 1; }

/* Media grid --------------------------------------------------------------- */
.smr-media-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 8px;
}
.smr-media-item {
    position: relative; aspect-ratio: 1 / 1;
    overflow: hidden; border-radius: var(--smr-radius-sm);
    border: 1px solid var(--smr-border); cursor: pointer;
    background: var(--smr-surface-2);
}
.smr-media-item img { width: 100%; height: 100%; object-fit: cover; display: block; }
.smr-media-overlay {
    position: absolute; inset: 0;
    background: rgba(15, 23, 42, 0.82); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.78rem; font-weight: 600;
    opacity: 0; transition: opacity var(--smr-transition);
}
.smr-media-item:hover .smr-media-overlay { opacity: 1; }
.smr-media-item:hover { border-color: var(--smr-accent); }

/* Shortcode reference ------------------------------------------------------ */
.smr-shortcode-list { display: flex; flex-direction: column; gap: 6px; }
.smr-shortcode-row {
    display: grid; grid-template-columns: minmax(180px, 1fr) 2fr auto;
    gap: 12px; align-items: center;
    padding: 10px 14px;
    background: var(--smr-surface); border: 1px solid var(--smr-border);
    border-radius: var(--smr-radius-sm);
    cursor: pointer; transition: all var(--smr-transition);
}
.smr-shortcode-row:hover { border-color: var(--smr-accent); box-shadow: var(--smr-shadow-xs); }
.smr-shortcode-code code {
    background: var(--smr-surface-2); padding: 4px 8px;
    border-radius: 4px; color: var(--smr-accent-2);
    font-size: 0.85rem; font-family: 'JetBrains Mono', Consolas, Menlo, monospace;
}
.smr-shortcode-desc { font-size: 0.85rem; color: var(--smr-text-3); }
.smr-shortcode-copy { font-size: 1rem; color: var(--smr-text-mute); }
.smr-shortcode-row:hover .smr-shortcode-copy { color: var(--smr-accent); }

@media (max-width: 640px) {
    .smr-shortcode-row { grid-template-columns: 1fr; }
}

/* Toast -------------------------------------------------------------------- */
.smr-toast {
    position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%) translateY(20px);
    background: var(--smr-primary); color: #fff;
    padding: 10px 18px; border-radius: 999px;
    font-size: 0.88rem; font-weight: 500;
    box-shadow: var(--smr-shadow-lg); z-index: 99999;
    opacity: 0; transition: all 0.25s ease;
    pointer-events: none; max-width: 90vw;
}
.smr-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ========================================================================== */
/* Public View (aiginex_smr_view)                                             */
/* ========================================================================== */
.smr-app-v7 {
    font-family: 'Inter', 'Segoe UI', 'Noto Sans Bengali', 'Kalpurush', 'SolaimanLipi', system-ui, -apple-system, sans-serif;
    color: var(--smr-text);
    max-width: 1200px;
    margin: 0 auto;
    padding: 10px;
}

.smr-view { display: none; }
.smr-view.smr-view-active { display: block; }

.smr-app-head {
    display: flex; justify-content: space-between; align-items: center;
    gap: 16px; margin-bottom: 20px;
    padding-bottom: 14px; border-bottom: 1px solid var(--smr-border);
    flex-wrap: wrap;
}
.smr-app-title { margin: 0; font-size: 1.6rem; font-weight: 700; color: var(--smr-primary); }
.smr-app-sub   { margin: 4px 0 0; font-size: 0.88rem; color: var(--smr-text-3); }

.smr-app-search { flex: 0 0 auto; min-width: 240px; }
.smr-app-search-input {
    width: 100%; padding: 10px 14px;
    border-radius: 999px; border: 1px solid var(--smr-border-2);
    background: var(--smr-surface); font-family: inherit; font-size: 0.92rem;
    box-shadow: var(--smr-shadow-xs);
    transition: all var(--smr-transition);
}
.smr-app-search-input:focus {
    outline: none; border-color: var(--smr-accent);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.smr-app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
}

/* Category card */
.smr-cat-card {
    position: relative; display: flex; flex-direction: column;
    background: var(--smr-surface); border: 1px solid var(--smr-border);
    border-radius: var(--smr-radius-lg);
    padding: 20px;
    cursor: pointer; transition: all 0.25s ease;
    overflow: hidden; min-height: 150px;
    box-shadow: var(--smr-shadow-xs);
}
.smr-cat-card:hover {
    transform: translateY(-3px); box-shadow: var(--smr-shadow-lg);
    border-color: var(--card-color, var(--smr-accent));
}
.smr-cat-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: var(--card-color, var(--smr-accent));
    opacity: 0.85;
}
.smr-cat-serial-badge {
    position: absolute; top: 12px; right: 12px;
    min-width: 26px; height: 26px; padding: 0 6px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 999px; color: #fff;
    font-size: 0.78rem; font-weight: 700;
}
.smr-cat-icon {
    width: 54px; height: 54px; border-radius: var(--smr-radius);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 14px;
}
.smr-cat-icon img { width: 60%; height: 60%; object-fit: contain; }
.smr-cat-icon i   { font-size: 1.6rem; }
.smr-cat-body { flex: 1; }
.smr-cat-body .smr-cat-title { margin: 0; font-size: 1.05rem; font-weight: 700; color: var(--smr-primary); }
.smr-cat-meta { margin-top: 4px; font-size: 0.82rem; color: var(--smr-text-3); }
.smr-cat-arrow {
    margin-top: 12px; font-size: 1.2rem; font-weight: 700;
    align-self: flex-end;
}

/* Items view */
.smr-items-head {
    display: flex; align-items: center; gap: 16px;
    margin-bottom: 20px; padding-bottom: 14px;
    border-bottom: 1px solid var(--smr-border);
    flex-wrap: wrap;
}
.smr-back-btn {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--smr-surface); color: var(--smr-text-2);
    border: 1px solid var(--smr-border);
    padding: 8px 16px; border-radius: 999px;
    font-family: inherit; font-size: 0.88rem; font-weight: 600;
    cursor: pointer; transition: all var(--smr-transition);
    box-shadow: var(--smr-shadow-xs);
}
.smr-back-btn:hover { background: var(--smr-primary); color: #fff; border-color: var(--smr-primary); }
.smr-items-title-wrap { display: flex; align-items: center; gap: 12px; }
.smr-items-icon {
    width: 42px; height: 42px; border-radius: var(--smr-radius);
    background: var(--smr-accent-soft);
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
}
.smr-items-icon img { width: 65%; height: 65%; object-fit: contain; }
.smr-items-icon i   { font-size: 1.3rem; color: var(--smr-accent); }
.smr-items-title { margin: 0; font-size: 1.2rem; font-weight: 700; color: var(--smr-primary); }
.smr-items-sub { font-size: 0.82rem; color: var(--smr-text-3); margin-top: 2px; }

.smr-item-card {
    display: flex; flex-direction: column; justify-content: space-between;
    background: var(--smr-surface); border: 1px solid var(--smr-border);
    border-radius: var(--smr-radius-lg);
    padding: 18px; text-decoration: none; color: var(--smr-text);
    min-height: 140px; transition: all 0.25s ease;
    box-shadow: var(--smr-shadow-xs);
}
.smr-item-card:hover {
    transform: translateY(-3px); box-shadow: var(--smr-shadow-lg);
    border-color: var(--smr-accent);
}
.smr-item-title { margin: 0 0 6px; font-size: 1rem; font-weight: 700; color: var(--smr-primary); line-height: 1.35; }
.smr-item-date { font-size: 0.8rem; color: var(--smr-text-mute); }
.smr-item-footer {
    display: flex; justify-content: space-between; align-items: center;
    margin-top: 14px; padding-top: 12px;
    border-top: 1px solid var(--smr-surface-2);
    color: var(--smr-accent); font-size: 0.82rem; font-weight: 600;
}

.smr-app-empty {
    text-align: center; padding: 60px 20px;
    color: var(--smr-text-3);
}
.smr-app-empty-ico { font-size: 3rem; margin-bottom: 10px; }
.smr-app-empty-title { font-size: 1.1rem; font-weight: 700; color: var(--smr-primary); margin-bottom: 4px; }
.smr-app-empty-sub { font-size: 0.88rem; }

/* Responsive --------------------------------------------------------------- */
@media (max-width: 720px) {
    .smr-page-head { padding: 16px 18px; }
    .smr-page-title { font-size: 1.25rem; }
    .smr-tabs-nav { padding: 4px; }
    .smr-tab-btn { padding: 8px 10px; font-size: 0.85rem; }
    .smr-tab-lbl { display: none; }
    .smr-tab-ico { font-size: 1.2rem; }
    .smr-tab-panel { padding: 16px; }
    .smr-card-pad { padding: 16px; }
    .smr-app-head { padding-bottom: 14px; }
    .smr-app-search { flex: 1 1 100%; min-width: 0; }
}