/* =============================================================
   Loan UI - 9.3.5 響應式優化（手機版）+ 9.2.6 共享元件庫
   Shared responsive & component styles for Client / Loan modules.
   Author: UI Optimization Roadmap
   ============================================================= */

/* ---------- Dashlite nk-tb-list 響應式補強 ----------
   tb-col-mb = mobile 顯示
   tb-col-md = medium+ 才顯示（mobile 隱藏）
   tb-col-lg = large+ 才顯示（mobile 與 tablet 隱藏）
   tb-col-xl = xlarge+ 才顯示（其餘全隱藏）
   自動匹配既有 dashlite class 命名。
*/
@media (max-width: 575.98px) {
    .nk-tb-list .nk-tb-col.tb-col-md,
    .nk-tb-list .nk-tb-col.tb-col-lg,
    .nk-tb-list .nk-tb-col.tb-col-xl,
    .nk-tb-list .nk-tb-col.dashlite-col-hide-mobile { display: none !important; }
}
@media (min-width: 576px) and (max-width: 991.98px) {
    .nk-tb-list .nk-tb-col.tb-col-lg,
    .nk-tb-list .nk-tb-col.tb-col-xl { display: none !important; }
}
@media (min-width: 992px) and (max-width: 1199.98px) {
    .nk-tb-list .nk-tb-col.tb-col-xl { display: none !important; }
}

/* nk-tb-list 在小屏預設：行動裝置寬鬆 padding、wrap 內容 */
@media (max-width: 575.98px) {
    .nk-tb-list.is-compact .nk-tb-item {
        padding: 0.65rem 0.75rem;
        flex-wrap: wrap;
        gap: 0.35rem 0.5rem;
    }
    .nk-tb-list.is-compact .nk-tb-col {
        font-size: 0.82rem;
    }
    .nk-tb-list.is-compact .nk-tb-head { display: none; }
    /* 行動裝置把每行變成卡片式堆疊，必要時在父層加 .ui-tb-mobile-stack */
    .ui-tb-mobile-stack .nk-tb-item {
        display: block !important;
        border-bottom: 1px solid var(--ui-color-border);
    }
    .ui-tb-mobile-stack .nk-tb-item .nk-tb-col {
        width: 100%;
        padding: 0.15rem 0;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 0.5rem;
    }
    .ui-tb-mobile-stack .nk-tb-item .nk-tb-col::before {
        content: attr(data-label);
        font-size: 0.7rem;
        text-transform: uppercase;
        color: var(--ui-color-muted);
        font-weight: 500;
        letter-spacing: 0.04em;
    }
    .ui-tb-mobile-stack .nk-tb-item .nk-tb-col-check,
    .ui-tb-mobile-stack .nk-tb-item .nk-tb-col-tools {
        justify-content: flex-end;
    }
    .ui-tb-mobile-stack .nk-tb-item .nk-tb-col-check::before,
    .ui-tb-mobile-stack .nk-tb-item .nk-tb-col-tools::before { content: none; }
    .ui-tb-mobile-stack .nk-tb-item .nk-tb-col-tools .nk-tb-actions {
        margin-left: auto;
    }
}

/* 響應式 toolbar / 篩選器 */
@media (max-width: 767.98px) {
    .ui-toolbar-responsive {
        flex-direction: column;
        align-items: stretch;
        gap: 0.5rem;
    }
    .ui-toolbar-responsive .form-wrap { width: 100% !important; }
    .ui-toolbar-responsive .dropdown,
    .ui-toolbar-responsive .btn { width: 100%; }
}

/* ---------- 0. CSS Variables ---------- */
:root {
    --ui-radius-sm: 6px;
    --ui-radius-md: 10px;
    --ui-radius-lg: 14px;
    --ui-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
    --ui-shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
    --ui-tap-min: 30px;
    --ui-text-xs: 0.72rem;
    --ui-text-sm: 0.85rem;
    --ui-text-md: 0.95rem;
    --ui-text-lg: 1.15rem;
    --ui-text-xl: 1.4rem;
    --ui-color-primary: #1d4ed8;
    --ui-color-success: #16a34a;
    --ui-color-warning: #f59e0b;
    --ui-color-danger: #dc2626;
    --ui-color-info: #0ea5e9;
    --ui-color-text: #0f172a;
    --ui-color-muted: #64748b;
    --ui-color-border: #e2e8f0;
    --ui-color-bg-soft: #f8fafc;
}

/* ---------- 1. Screen reader only ---------- */
.ui-sr-only {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ---------- 2. Responsive container padding ---------- */
.ui-card-pad {
    padding: 1rem 1.25rem;
}
@media (max-width: 768px) {
    .ui-card-pad { padding: 0.75rem; }
}

/* ---------- 3. Touch-friendly hit targets ---------- */
.btn,
button,
a.btn,
.ui-tap {
    min-height: var(--ui-tap-min);
}
@media (max-width: 768px) {
    .btn-sm { min-height: 30px; padding: 0.2rem 0.5rem; }
    .form-control,
    .form-select,
    select.form-control {
        font-size: 16px; /* 防止 iOS 自動縮放 */
        min-height: 44px;
    }
}

/* ---------- 4. Responsive KPI grid ---------- */
.ui-kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 0.75rem;
    margin: 1rem 0;
}
.ui-kpi {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.9rem 1rem;
    border: 1px solid var(--ui-color-border);
    border-radius: var(--ui-radius-lg);
    background: linear-gradient(180deg, #ffffff 0%, var(--ui-color-bg-soft) 100%);
    box-shadow: var(--ui-shadow-sm);
}
.ui-kpi__icon {
    width: 40px;
    height: 40px;
    border-radius: var(--ui-radius-md);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.ui-kpi__icon--primary { background: rgba(37, 99, 235, 0.1); color: var(--ui-color-primary); }
.ui-kpi__icon--success { background: rgba(22, 163, 74, 0.1); color: var(--ui-color-success); }
.ui-kpi__icon--warning { background: rgba(245, 158, 11, 0.1); color: #b45309; }
.ui-kpi__icon--info    { background: rgba(14, 165, 233, 0.1); color: #0369a1; }
.ui-kpi__icon--danger  { background: rgba(220, 38, 38, 0.1); color: var(--ui-color-danger); }
.ui-kpi__label {
    font-size: var(--ui-text-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ui-color-muted);
    font-weight: 500;
    margin: 0 0 0.1rem;
}
.ui-kpi__value {
    font-size: var(--ui-text-lg);
    font-weight: 700;
    color: var(--ui-color-text);
    margin: 0;
    font-variant-numeric: tabular-nums;
}
@media (max-width: 576px) {
    .ui-kpi-grid { grid-template-columns: repeat(2, 1fr); gap: 0.5rem; }
    .ui-kpi { padding: 0.7rem 0.75rem; }
    .ui-kpi__icon { width: 34px; height: 34px; }
    .ui-kpi__value { font-size: 1rem; }
}

/* ---------- 5. Responsive data tables ---------- */
.ui-table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: var(--ui-radius-md);
    border: 1px solid var(--ui-color-border);
}
.ui-table-responsive > table { margin-bottom: 0; }

@media (max-width: 768px) {
    /* Hide low-priority columns. Mark columns with data-priority to control visibility. */
    .ui-table-responsive table.ui-priority-table th[data-priority="4"],
    .ui-table-responsive table.ui-priority-table td[data-priority="4"] { display: none; }
    .ui-table-responsive table.ui-priority-table th[data-priority="5"],
    .ui-table-responsive table.ui-priority-table td[data-priority="5"] { display: none; }
    .ui-table-responsive table.ui-priority-table th[data-priority="6"],
    .ui-table-responsive table.ui-priority-table td[data-priority="6"] { display: none; }
}
@media (max-width: 480px) {
    .ui-table-responsive table.ui-priority-table th[data-priority="3"],
    .ui-table-responsive table.ui-priority-table td[data-priority="3"] { display: none; }
}

/* ---------- 6. Card list (mobile-first list view) ---------- */
.ui-card-list {
    display: none;
}
@media (max-width: 768px) {
    .ui-card-list { display: block; }
    .ui-table-responsive { display: none; }
    .ui-card-list__item {
        display: block;
        padding: 0.85rem 1rem;
        border: 1px solid var(--ui-color-border);
        border-radius: var(--ui-radius-md);
        margin-bottom: 0.5rem;
        background: #ffffff;
        box-shadow: var(--ui-shadow-sm);
    }
    .ui-card-list__title {
        font-size: var(--ui-text-md);
        font-weight: 700;
        color: var(--ui-color-text);
        margin: 0 0 0.25rem;
    }
    .ui-card-list__row {
        display: flex;
        justify-content: space-between;
        padding: 0.15rem 0;
        font-size: var(--ui-text-sm);
        border-top: 1px dashed var(--ui-color-border);
    }
    .ui-card-list__row:first-of-type { border-top: 0; }
    .ui-card-list__label { color: var(--ui-color-muted); }
    .ui-card-list__value { font-weight: 600; }
    .ui-card-list__actions {
        margin-top: 0.5rem;
        display: flex;
        gap: 0.4rem;
        flex-wrap: wrap;
    }
}

/* ---------- 7. Sticky bottom action bar (mobile) ---------- */
.ui-action-bar {
    display: none;
}
@media (max-width: 768px) {
    .ui-action-bar {
        display: flex;
        gap: 0.5rem;
        position: sticky;
        bottom: 0;
        left: 0;
        right: 0;
        padding: 0.6rem 0.75rem calc(0.6rem + env(safe-area-inset-bottom));
        background: #ffffff;
        border-top: 1px solid var(--ui-color-border);
        box-shadow: 0 -2px 10px rgba(15, 23, 42, 0.08);
        z-index: 100;
    }
    .ui-action-bar .btn { flex: 1; }
}

/* ---------- 8. Form group (3-step / 4-step wizard style) ---------- */
.ui-form-group {
    padding: 1rem 1.1rem;
    border: 1px solid var(--ui-color-border);
    border-radius: var(--ui-radius-lg);
    background: #ffffff;
    margin-bottom: 1rem;
    box-shadow: var(--ui-shadow-sm);
}
.ui-form-group__header {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--ui-color-border);
}
.ui-form-group__index {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--ui-color-primary);
    color: #ffffff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
}
.ui-form-group__title {
    font-size: var(--ui-text-md);
    font-weight: 700;
    color: var(--ui-color-text);
    margin: 0;
}
.ui-form-group__hint {
    font-size: var(--ui-text-xs);
    color: var(--ui-color-muted);
    margin: 0.15rem 0 0;
}
@media (max-width: 768px) {
    .ui-form-group { padding: 0.75rem; }
}

/* ---------- 9. Section heading ---------- */
.ui-section-title {
    font-size: var(--ui-text-md);
    font-weight: 700;
    color: var(--ui-color-text);
    margin: 1.5rem 0 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.ui-section-title__icon { color: var(--ui-color-primary); }

/* ---------- 10. Filter / toolbar ---------- */
.ui-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.75rem;
    background: var(--ui-color-bg-soft);
    border: 1px solid var(--ui-color-border);
    border-radius: var(--ui-radius-md);
    margin-bottom: 1rem;
}
.ui-toolbar__item { flex: 1; min-width: 160px; }
@media (max-width: 576px) {
    .ui-toolbar { padding: 0.5rem; }
    .ui-toolbar__item { min-width: 0; flex: 1 1 100%; }
}

/* ---------- 11. Sticky summary card (right column desktop / top mobile) ---------- */
.ui-sticky-card {
    position: sticky;
    top: 1rem;
    padding: 1rem 1.1rem;
    border: 1px solid var(--ui-color-border);
    border-radius: var(--ui-radius-lg);
    background: linear-gradient(180deg, #ffffff 0%, var(--ui-color-bg-soft) 100%);
    box-shadow: var(--ui-shadow-sm);
}
@media (max-width: 991px) {
    .ui-sticky-card { position: static; }
}

/* ---------- 12. Mobile navigation drawer ---------- */
.ui-mobile-toggle {
    display: none;
}
@media (max-width: 768px) {
    .ui-mobile-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        border: 1px solid var(--ui-color-border);
        border-radius: var(--ui-radius-md);
        background: #ffffff;
        cursor: pointer;
    }
    .ui-mobile-nav {
        position: fixed;
        top: 0;
        left: -280px;
        width: 280px;
        height: 100%;
        background: #ffffff;
        box-shadow: 2px 0 12px rgba(0, 0, 0, 0.15);
        transition: left 0.25s ease;
        z-index: 1000;
        overflow-y: auto;
        padding: 1rem;
    }
    .ui-mobile-nav.is-open { left: 0; }
    .ui-mobile-nav__backdrop {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(15, 23, 42, 0.45);
        z-index: 999;
        display: none;
    }
    .ui-mobile-nav__backdrop.is-open { display: block; }
}

/* ---------- 13. Two column → one column on mobile ---------- */
@media (max-width: 768px) {
    .ui-two-col { display: flex; flex-direction: column; gap: 1rem; }
    .ui-two-col__main { order: 1; }
    .ui-two-col__aside { order: 2; }
}

/* ---------- 14. Tab navigation (scrollable on mobile) ---------- */
.ui-tabs {
    display: flex;
    gap: 0.25rem;
    border-bottom: 1px solid var(--ui-color-border);
    margin-bottom: 1rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
}
.ui-tabs__btn {
    border: 0;
    background: transparent;
    color: var(--ui-color-muted);
    padding: 0.7rem 0.9rem;
    font-weight: 500;
    white-space: nowrap;
    border-bottom: 2px solid transparent;
    cursor: pointer;
}
.ui-tabs__btn:hover { color: var(--ui-color-primary); }
.ui-tabs__btn.is-active {
    color: var(--ui-color-primary);
    border-bottom-color: var(--ui-color-primary);
}

/* ---------- 15. Hero card (compact on mobile) ---------- */
.ui-hero {
    position: relative;
    padding: 1.5rem 1.5rem 1.25rem;
    border-radius: var(--ui-radius-lg);
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 60%, #6366f1 100%);
    color: #ffffff;
    box-shadow: var(--ui-shadow-md);
    margin-bottom: 1.25rem;
}
@media (max-width: 768px) {
    .ui-hero { padding: 1rem; }
}

/* ---------- 16. Utility helpers ---------- */
.ui-text-muted { color: var(--ui-color-muted); }
.ui-text-bold  { font-weight: 700; }
.ui-text-success { color: var(--ui-color-success); }
.ui-text-warning { color: var(--ui-color-warning); }
.ui-text-danger  { color: var(--ui-color-danger); }
.ui-mt-1 { margin-top: 0.5rem; }
.ui-mt-2 { margin-top: 1rem; }
.ui-mb-1 { margin-bottom: 0.5rem; }
.ui-mb-2 { margin-bottom: 1rem; }
.ui-hidden-mobile { }
.ui-hidden-desktop { display: none; }
@media (max-width: 768px) {
    .ui-hidden-mobile { display: none !important; }
    .ui-hidden-desktop { display: block !important; }
}