/**
 * Programs Page Styles
 * Custom styles for the programs library page
 * Mobile-first responsive design following workout-database patterns
 * @version 1.0.0
 */

/* ============================================
   CSS CUSTOM PROPERTIES (Variables)
   ============================================ */
:root {
    /* Card styling - compact design */
    --prg-card-padding: 0.875rem;
    --prg-card-padding-mobile: 0.75rem;
    --prg-card-border-radius: 0.5rem;
    --prg-card-shadow: 0 2px 6px rgba(67, 89, 113, 0.12);
    --prg-card-shadow-hover: 0 4px 12px rgba(67, 89, 113, 0.16);

    /* Typography */
    --prg-card-title-size: 1rem;
    --prg-card-meta-size: 0.8125rem;
    --prg-card-preview-size: 0.8125rem;
    --prg-card-preview-size-mobile: 0.75rem;

    /* Touch targets - WCAG minimum */
    --prg-touch-target-min: 44px;

    /* Transitions */
    --prg-card-transition: box-shadow 0.2s ease, transform 0.2s ease, opacity 0.2s ease;
}

/* ============================================
   PROGRAMS TOOLBAR
   Unified controls in one consistent row
   ============================================ */

.programs-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
}

/* Search input container */
.programs-toolbar-search {
    flex: 1;
    min-width: 140px;
    max-width: 240px;
    position: relative;
    display: flex;
    align-items: center;
}

.programs-toolbar-search > i {
    position: absolute;
    left: 0.625rem;
    color: var(--bs-secondary);
    font-size: 1rem;
    pointer-events: none;
    z-index: 1;
}

/* Search input - matches button styling */
.programs-toolbar-search input {
    width: 100%;
    height: 2rem;
    padding: 0 2rem 0 2rem;
    font-size: 0.8125rem;
    font-weight: 400;
    line-height: 1.5;
    color: var(--bs-body-color);
    background-color: var(--bs-body-bg);
    border: 1px solid var(--bs-border-color);
    border-radius: 0.375rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.programs-toolbar-search input::placeholder {
    color: var(--bs-secondary);
    opacity: 0.8;
}

.programs-toolbar-search input:focus {
    border-color: var(--bs-primary);
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(var(--bs-primary-rgb), 0.15);
}

/* Clear button */
.programs-toolbar-clear {
    position: absolute;
    right: 0.25rem;
    padding: 0.25rem;
    color: var(--bs-secondary);
    background: transparent;
    border: none;
    cursor: pointer;
    line-height: 1;
}

.programs-toolbar-clear:hover {
    color: var(--bs-body-color);
}

/* Shared button styling */
.programs-toolbar-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 2rem;
    padding: 0 0.625rem;
    font-size: 0.8125rem;
    font-weight: 500;
    line-height: 1.5;
    white-space: nowrap;
    border-radius: 0.375rem;
    gap: 0.375rem;
    transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out;
}

.programs-toolbar-btn i {
    font-size: 1rem;
    line-height: 1;
}

/* Primary button (Create/New) */
.programs-toolbar-btn.btn-primary {
    border: 1px solid var(--bs-primary);
}

/* Outline buttons (Sort, Filter) */
.programs-toolbar-btn.btn-outline-secondary {
    border: 1px solid var(--bs-border-color);
    background-color: var(--bs-body-bg);
}

.programs-toolbar-btn.btn-outline-secondary:hover {
    background-color: var(--bs-gray-100);
    border-color: var(--bs-gray-400);
}

/* Filter badge */
.programs-toolbar-btn .filter-badge {
    font-size: 0.6875rem;
    padding: 0.125rem 0.375rem;
    line-height: 1.2;
}

/* ============================================
   PROGRAMS GRID - Card Layout
   ============================================ */

/* Ensure grid row stretches columns to equal height */
#programsGrid.row {
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
}

#programsGrid > .col {
    display: flex;
    flex-direction: column;
}

#programsGrid > .col > .card {
    flex: 1 1 auto;
    width: 100%;
}

/* Base card styling */
#programsGrid .card {
    border-radius: var(--prg-card-border-radius);
    box-shadow: var(--prg-card-shadow);
    transition: var(--prg-card-transition);
    cursor: pointer;
    height: 100%;
    display: flex;
    flex-direction: column;
    position: relative;
}

/* Elevate card when dropdown menu is open */
#programsGrid .card:has(.dropdown-menu.show) {
    z-index: 1060 !important;
}

#programsGrid .card:hover {
    box-shadow: var(--prg-card-shadow-hover);
    transform: translateY(-2px);
}

/* Card body with consistent padding and flex layout */
#programsGrid .card .card-body {
    padding: var(--prg-card-padding);
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 160px;
}

/* Card title styling */
#programsGrid .card .card-title {
    font-size: var(--prg-card-title-size);
    font-weight: 600;
    margin-bottom: 0.375rem;
    padding-right: 2.5rem;
    line-height: 1.3;
}

/* Card footer content wrapper - pushed to bottom */
#programsGrid .card .card-footer-content {
    margin-top: auto;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
}

/* Card actions container */
#programsGrid .card .card-actions {
    padding-top: 0.5rem;
}

/* ============================================
   PROGRAM CARD COMPONENT
   Clean, modern card styling
   ============================================ */

.program-card {
    cursor: pointer;
    transition: var(--prg-card-transition);
    border: 1px solid var(--bs-border-color);
}

.program-card:hover {
    box-shadow: var(--prg-card-shadow-hover);
    transform: translateY(-2px);
}

.program-card .card-body {
    padding: var(--prg-card-padding);
}

/* Card title - smaller and cleaner */
.program-card .card-title {
    font-size: 0.9375rem;
    font-weight: 600;
    margin-bottom: 0;
    line-height: 1.3;
    color: var(--bs-heading-color);
}

/* Small badge for difficulty/duration */
.program-card .badge-sm {
    font-size: 0.6875rem;
    padding: 0.2em 0.5em;
    font-weight: 500;
}

/* Stats row */
.program-card .text-muted.small span {
    display: inline-flex;
    align-items: center;
}

.program-card .text-muted.small i {
    font-size: 0.875rem;
}

/* Description text clamping */
.program-card .line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    line-height: 1.4;
}

/* Dropdown menu button */
.program-card .btn-text-secondary {
    width: 28px;
    height: 28px;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--bs-secondary);
    transition: background-color 0.15s ease;
}

.program-card .btn-text-secondary:hover {
    background: var(--bs-gray-200);
    color: var(--bs-body-color);
}

/* Selected state in delete mode */
.program-card.selected {
    border-color: var(--bs-danger);
    background: rgba(var(--bs-danger-rgb), 0.05);
}

/* Delete mode checkbox */
.program-card .form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    cursor: pointer;
}

/* ============================================
   PROGRAM CARD BADGES
   ============================================ */

.badge {
    font-weight: 500;
    padding: 0.35em 0.65em;
    font-size: 0.75rem;
}

/* Badge label variants */
#programsGrid .badge.bg-label-primary {
    background-color: rgba(var(--bs-primary-rgb), 0.1);
    color: var(--bs-primary);
}

#programsGrid .badge.bg-label-info {
    background-color: rgba(var(--bs-info-rgb), 0.1);
    color: var(--bs-info);
}

#programsGrid .badge.bg-label-secondary {
    background-color: rgba(var(--bs-secondary-rgb), 0.1);
    color: var(--bs-secondary);
}

#programsGrid .badge.bg-label-success {
    background-color: rgba(var(--bs-success-rgb), 0.1);
    color: var(--bs-success);
}

#programsGrid .badge.bg-label-warning {
    background-color: rgba(var(--bs-warning-rgb), 0.1);
    color: var(--bs-warning);
}

#programsGrid .badge.bg-label-danger {
    background-color: rgba(var(--bs-danger-rgb), 0.1);
    color: var(--bs-danger);
}

/* ============================================
   PROGRAM CARD BUTTONS
   ============================================ */

/* Primary CTA button - touch-friendly sizing */
#programsGrid .btn-card-action {
    min-height: var(--prg-touch-target-min);
    padding: 0.625rem 1rem;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--prg-card-transition);
}

#programsGrid .btn-card-action:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(var(--bs-primary-rgb), 0.3);
}

/* Button group styling */
#programsGrid .btn-group {
    width: 100%;
}

#programsGrid .btn-group .btn {
    flex: 1;
    min-height: var(--prg-touch-target-min);
}

/* Delete button in delete mode */
.btn-delete-program {
    background: var(--bs-danger);
    color: white;
    border: none;
    font-weight: 600;
    transition: background-color 0.2s ease, filter 0.2s ease, transform 0.2s ease;
}

.btn-delete-program:hover {
    background: var(--bs-danger);
    filter: brightness(0.9);
    transform: scale(1.02);
}

.btn-delete-program:active {
    transform: scale(0.98);
}

.btn-delete-program i {
    font-size: 18px;
}

/* ============================================
   DELETE MODE STYLES
   ============================================ */

/* Delete mode toggle */
.delete-mode-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--bs-secondary);
    transition: color 0.2s ease;
}

#deleteModeToggle:checked + label .delete-mode-label {
    color: var(--bs-danger);
}

/* Card in delete mode */
#programsGrid .card.delete-mode {
    border-color: var(--bs-danger);
    border-width: 2px;
    background: rgba(var(--bs-danger-rgb), 0.02);
    transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

#programsGrid .card.delete-mode:hover {
    background: rgba(var(--bs-danger-rgb), 0.05);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(var(--bs-danger-rgb), 0.15);
}

/* Card selected state (for batch operations) */
#programsGrid .card.delete-mode.selected {
    border-color: var(--bs-primary) !important;
    border-width: 2px;
    background: rgba(var(--bs-primary-rgb), 0.05);
}

#programsGrid .card.delete-mode.selected:hover {
    background: rgba(var(--bs-primary-rgb), 0.08);
    box-shadow: 0 4px 12px rgba(var(--bs-primary-rgb), 0.15);
}

/* Checkbox styling in delete mode */
.program-select-checkbox {
    width: 1.25rem;
    height: 1.25rem;
    cursor: pointer;
}

/* ============================================
   SELECTION ACTION BAR (Gmail-style batch delete)
   ============================================ */

.selection-action-bar {
    position: fixed;
    bottom: calc(24px + env(safe-area-inset-bottom));
    left: 50%;
    transform: translateX(-50%);
    background: var(--bs-gray-900);
    color: white;
    padding: 0.5rem 0.75rem;
    border-radius: 0.5rem;
    display: none;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25), 0 2px 8px rgba(0, 0, 0, 0.15);
    z-index: 1050;
    animation: slideUp 0.25s ease-out;
}

.selection-action-bar.active {
    display: flex;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

.selection-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.btn-close-selection {
    background: transparent;
    border: none;
    color: white;
    padding: 0.25rem;
    cursor: pointer;
    line-height: 1;
    font-size: 1.25rem;
    opacity: 0.8;
    transition: opacity 0.15s;
}

.btn-close-selection:hover {
    opacity: 1;
}

.selection-count {
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
}

.btn-batch-delete {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    padding: 0.5rem 1rem;
    background: var(--bs-danger);
    color: white;
    border: none;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: opacity 0.15s, background-color 0.15s;
}

.btn-batch-delete:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-batch-delete:not(:disabled):hover {
    background: var(--gs-danger-active);
}

.btn-batch-delete i {
    font-size: 1rem;
}

/* ============================================
   LOADING & EMPTY STATES
   ============================================ */

#programsLoadingState,
#programsEmptyState {
    min-height: 400px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

#programsEmptyState i {
    font-size: 4rem;
    opacity: 0.5;
}

.spinner-border {
    width: 3rem;
    height: 3rem;
}

/* ============================================
   SECTION HEADERS
   ============================================ */

.section-header {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--bs-secondary);
}

/* ============================================
   FILTERS OFFCANVAS
   ============================================ */

#filtersOffcanvas .offcanvas-body {
    padding-bottom: calc(1rem + env(safe-area-inset-bottom));
}

#filtersOffcanvas .form-check-label {
    cursor: pointer;
}

/* Tag filter chips */
.tag-filter-chip {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    margin: 0.25rem;
    font-size: 0.8125rem;
    border: 1px solid var(--bs-border-color);
    border-radius: 1rem;
    cursor: pointer;
    transition: all 0.15s ease;
}

.tag-filter-chip:hover {
    border-color: var(--bs-primary);
    background-color: rgba(var(--bs-primary-rgb), 0.05);
}

.tag-filter-chip.active {
    background-color: var(--bs-primary);
    border-color: var(--bs-primary);
    color: white;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Mobile */
@media (max-width: 767.98px) {
    /* Update CSS variables for mobile */
    :root {
        --prg-card-padding: var(--prg-card-padding-mobile);
        --prg-card-preview-size: var(--prg-card-preview-size-mobile);
    }

    /* Card mobile optimizations */
    #programsGrid .card .card-body {
        padding: var(--prg-card-padding-mobile);
    }

    #programsGrid .card .card-title {
        font-size: 0.9375rem;
        margin-bottom: 0.375rem;
    }

    /* Ensure touch targets remain accessible */
    #programsGrid .btn-card-action {
        min-height: var(--prg-touch-target-min);
        font-size: 0.8125rem;
    }
}

/* Extra small mobile */
@media (max-width: 575.98px) {
    .programs-toolbar {
        gap: 0.375rem;
    }

    /* Search takes full width on mobile */
    .programs-toolbar-search {
        flex: 1 1 100%;
        max-width: none;
        order: -1;
        margin-bottom: 0.25rem;
    }

    .programs-toolbar-search input {
        height: 2.25rem;
    }

    /* Buttons take equal width on mobile */
    .programs-toolbar-btn {
        flex: 1;
        height: 2.25rem;
        padding: 0 0.5rem;
        justify-content: center;
    }

    /* Show text labels on mobile */
    .programs-toolbar-btn .sort-label,
    .programs-toolbar-btn .filter-label,
    .programs-toolbar-btn .create-label {
        display: inline;
    }
}

/* ============================================
   DARK MODE SUPPORT
   ============================================ */

[data-bs-theme="dark"] .programs-toolbar-search input {
    background-color: var(--bs-gray-900);
    border-color: var(--bs-gray-600);
    color: var(--bs-gray-200);
}

[data-bs-theme="dark"] .programs-toolbar-search input::placeholder {
    color: var(--bs-gray-500);
}

[data-bs-theme="dark"] .programs-toolbar-search input:focus {
    border-color: var(--bs-primary);
    box-shadow: 0 0 0 0.2rem rgba(var(--bs-primary-rgb), 0.2);
}

[data-bs-theme="dark"] .programs-toolbar-btn.btn-outline-secondary {
    background-color: var(--bs-gray-900);
    border-color: var(--bs-gray-600);
    color: var(--bs-gray-300);
}

[data-bs-theme="dark"] .programs-toolbar-btn.btn-outline-secondary:hover {
    background-color: var(--bs-gray-700);
    border-color: var(--bs-gray-500);
}

/* Program card dark mode */
[data-bs-theme="dark"] #programsGrid .card,
[data-bs-theme="dark"] .program-card {
    background-color: var(--bs-card-bg);
    border-color: var(--bs-border-color);
}

[data-bs-theme="dark"] #programsGrid .card:hover,
[data-bs-theme="dark"] .program-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

[data-bs-theme="dark"] .program-card .btn-text-secondary:hover {
    background: var(--bs-gray-700);
}

[data-bs-theme="dark"] #programsGrid .card.delete-mode,
[data-bs-theme="dark"] .program-card.delete-mode {
    background: rgba(var(--bs-danger-rgb), 0.08);
}

[data-bs-theme="dark"] #programsGrid .card.delete-mode:hover,
[data-bs-theme="dark"] .program-card.delete-mode:hover {
    background: rgba(var(--bs-danger-rgb), 0.12);
}

[data-bs-theme="dark"] #programsGrid .card.delete-mode.selected,
[data-bs-theme="dark"] .program-card.selected {
    background: rgba(var(--bs-danger-rgb), 0.1);
    border-color: var(--bs-danger);
}

[data-bs-theme="dark"] #programsGrid .card.delete-mode.selected:hover,
[data-bs-theme="dark"] .program-card.selected:hover {
    background: rgba(var(--bs-danger-rgb), 0.15);
}

[data-bs-theme="dark"] .selection-action-bar {
    background: var(--bs-gray-800);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4), 0 2px 8px rgba(0, 0, 0, 0.3);
}

[data-bs-theme="dark"] .tag-filter-chip {
    border-color: var(--bs-gray-600);
    color: var(--bs-gray-300);
}

[data-bs-theme="dark"] .tag-filter-chip:hover {
    border-color: var(--bs-primary);
    background-color: rgba(var(--bs-primary-rgb), 0.1);
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#programsGrid .col {
    animation: fadeIn 0.3s ease;
}

@keyframes deleteModePulse {
    0%, 100% {
        border-color: var(--bs-danger);
    }
    50% {
        border-color: rgba(var(--bs-danger-rgb), 0.5);
    }
}

#programsGrid .card.delete-mode.pulse {
    animation: deleteModePulse 1.5s ease-in-out;
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    .programs-toolbar,
    .selection-action-bar,
    .btn-delete-program {
        display: none !important;
    }

    #programsGrid .card {
        page-break-inside: avoid;
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.text-truncate-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cursor-pointer {
    cursor: pointer;
}

/* ============================================
   WORKOUT PICKER OFFCANVAS
   ============================================ */

#workoutPickerOffcanvas .offcanvas-body {
    display: flex;
    flex-direction: column;
    padding: 0;
}

.workout-picker-search {
    flex-shrink: 0;
}

.workout-picker-list {
    flex: 1;
    overflow-y: auto;
}

.workout-picker-item {
    display: flex;
    align-items: flex-start;
    padding: 0.875rem 1rem;
    border-bottom: 1px solid var(--bs-border-color);
    cursor: pointer;
    transition: background-color 0.15s ease;
}

.workout-picker-item:hover {
    background-color: var(--bs-gray-100);
}

.workout-picker-item.selected {
    background-color: rgba(var(--bs-primary-rgb), 0.08);
}

.workout-picker-item .form-check {
    width: 100%;
    margin: 0;
}

.workout-picker-item .form-check-input {
    margin-top: 0.3rem;
}

.workout-picker-item .form-check-label {
    display: flex;
    flex-direction: column;
    width: 100%;
    cursor: pointer;
}

.workout-picker-name {
    font-weight: 500;
    font-size: 0.875rem;
    line-height: 1.3;
}

.workout-picker-meta {
    font-size: 0.75rem;
    margin-top: 0.125rem;
}

.workout-picker-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* Dark Mode */
[data-bs-theme="dark"] .workout-picker-item:hover {
    background-color: var(--bs-gray-800);
}

[data-bs-theme="dark"] .workout-picker-item.selected {
    background-color: rgba(var(--bs-primary-rgb), 0.15);
}