:root {
    --bg-main: #f5f6f8;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --border-color: #e5e7eb;
    
    /* Status Colors */
    --status-progress-bg: #d1fae5;
    --status-progress-text: #065f46;
    --status-done-bg: #dbeafe;
    --status-done-text: #1e40af;
    --status-stalled-bg: #ffedd5;
    --status-stalled-text: #9a3412;
    --status-notstarted-bg: #f3f4f6;
    --status-notstarted-text: #374151;
    --status-ready-bg: #e0e7ff;
    --status-ready-text: #3730a3;

    /* Assignee Colors */
    --assignee-bg: #fae8ff;
    --assignee-text: #86198f;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem; /* Base 14px */
    background-color: var(--bg-main);
    color: var(--text-primary);
    height: 100vh;
    display: flex;
    flex-direction: column;
}

input, select, textarea, button {
    font-family: 'Inter', sans-serif;
    font-size: inherit;
}

/* Common Buttons */
.btn {
    padding: 0.5rem 1.25rem;
    border-radius: 9999px; /* Pill style */
    font-weight: 500;
    font-size: 0.875rem;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.2s;
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.btn-secondary { background-color: #f3f4f6; color: #374151; border-color: #e5e7eb; }
.btn-secondary:hover { background-color: #e5e7eb; }
.btn-danger { background-color: #fee2e2; color: #b91c1c; }
.btn-danger:hover { background-color: #fecaca; }
.btn-small { padding: 0.25rem 0.75rem; font-size: 0.75rem; }

.btn-link {
    background: none;
    border: none;
    color: #3b82f6;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
}
.btn-link:hover { text-decoration: underline; }

.btn-icon {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.25rem;
    border-radius: 4px;
}
.btn-icon:hover { color: var(--text-primary); background-color: rgba(0,0,0,0.05); }

/* Close Buttons */
.close-btn {
    background: transparent;
    color: var(--text-secondary);
    border: none;
    cursor: pointer;
    font-size: 1.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.25rem;
    width: 24px;
    height: 24px;
    line-height: 1;
    transition: color 0.2s, background-color 0.2s;
    border-radius: 4px;
}
.close-btn:hover { background-color: #f3f4f6; color: var(--text-primary); }

.text-danger { color: #b91c1c; }

/* Header & Nav */
.app-header {
    background: #fff;
    padding: 0.75rem 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.header-left {
    display: flex;
    align-items: center;
}
.header-right {
    display: flex;
    align-items: center;
    margin-left: auto;
}
.filters-container {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.project-selector {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.project-selector select {
    padding: 0.4rem 2rem 0.4rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 9999px;
    font-family: inherit;
    background: #f9fafb;
    font-weight: 500;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    height: 34px;
    box-sizing: border-box;
    text-align: center;
    text-align-last: center;
}
.project-selector select:hover {
    background-color: #e5e7eb;
}

#filter-person {
    padding: 0.4rem 2rem 0.4rem 1rem;
    border: 1px solid transparent;
    border-radius: 9999px;
    font-family: inherit;
    font-weight: 500;
    font-size: 0.875rem;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    height: 34px;
    box-sizing: border-box;
    text-align: center;
    text-align-last: center;
    background-color: var(--assignee-bg);
    color: var(--assignee-text);
}
#filter-person:hover {
    background-color: #f3e8ff;
}
#filter-person.empty-assignee {
    background-color: #f9fafb;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}
#filter-person.empty-assignee:hover {
    background-color: #e5e7eb;
}

/* Filters */
.filter-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.filter-group label { font-weight: 500; font-size: 0.875rem; }
.filter-group select, .filter-group input[type="text"] {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: inherit;
}
.add-person-group { margin-left: auto; }

/* Toggle Switch */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: #ccc;
  transition: .4s;
}
.slider:before {
  position: absolute;
  content: "";
  height: 16px; width: 16px;
  left: 4px; bottom: 4px;
  background-color: white;
  transition: .4s;
}
input:checked + .slider { background-color: #3b82f6; }
input:checked + .slider:before { transform: translateX(20px); }
.slider.round { border-radius: 24px; }
.slider.round:before { border-radius: 50%; }

/* Main Content Area */
.app-content {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.view-section {
    flex: 1;
    display: none;
    flex-direction: column;
    overflow: hidden;
}
.view-section.active { display: flex; }

/* Kanban Board - Global Scroll */
.kanban-board {
    display: flex;
    flex: 1;
    gap: 1.5rem;
    padding: 1.5rem 2rem 2rem;
    overflow: auto; /* Board scrolls instead of columns */
    align-items: flex-start; /* Prevent columns stretching to 100% height if empty */
}

/* Columns */
.column {
    min-width: 270px;
    width: 270px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: width 0.3s, min-width 0.3s;
}
.add-column-container { min-width: 270px; }

.column-header {
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.3s;
    height: 42px; /* Set smaller height */
}
#btn-add-column {
    height: 42px;
    width: 100%;
}

.column-title { flex: 1; cursor: pointer; }

/* Cards Container */
.column-cards-container {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.column-cards {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    min-height: 50px;
}
.add-card-btn {
    width: 100%;
    text-align: left;
    background: transparent;
    border: 1px dashed var(--border-color);
    color: var(--text-secondary);
}
.add-card-btn:hover { border-color: var(--text-primary); color: var(--text-primary); }

/* Collapsed Column */
.column.collapsed {
    min-width: 48px;
    width: 48px;
}
.column.collapsed .column-header {
    flex-direction: column-reverse;
    padding: 1rem 0;
    height: auto;
    min-height: 200px;
}
.column.collapsed .column-title {
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    white-space: nowrap;
    margin-top: 1rem;
}
.column.collapsed .column-cards-container {
    display: none;
}

/* Cards */
.card {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    cursor: grab;
    transition: box-shadow 0.2s;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.card:active { cursor: grabbing; }
.card:hover { box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1); }
.card.drag-over { border: 2px dashed #3b82f6; background-color: #eff6ff; }

.card-title {
    font-weight: 600;
    font-size: 0.95rem;
    line-height: 1.4;
    word-wrap: break-word;
}
.card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

/* Badges */
.badge {
    padding: 0.25rem 0.6rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
}
.badge-assignee { background: var(--assignee-bg); color: var(--assignee-text); }
.badge-status-in-progress { background: var(--status-progress-bg); color: var(--status-progress-text); }
.badge-status-done { background: var(--status-done-bg); color: var(--status-done-text); }
.badge-status-stalled { background: var(--status-stalled-bg); color: var(--status-stalled-text); }
.badge-status-not-started { background: var(--status-notstarted-bg); color: var(--status-notstarted-text); }
.badge-status-ready-to-use { background: var(--status-ready-bg); color: var(--status-ready-text); }
.badge-type-task { background: #e0f2fe; color: #0369a1; }
.badge-type-subtask { background: #f3f4f6; color: #4b5563; }

.card-deadline {
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}
.card-deadline.urgent {
    font-weight: 600;
    color: #b91c1c;
}
.card-subtasks {
    margin-top: 0.5rem;
    padding-left: 0;
    margin-left: 0;
    list-style: none;
    font-size: 0.85rem;
    color: var(--text-secondary);
}
.card-subtasks li {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin-bottom: 0.25rem;
    word-wrap: break-word;
}
.card-subtasks li input[type="checkbox"] {
    margin: 0;
    width: 14px;
    height: 14px;
    cursor: default;
}
.more-subtasks {
    font-size: 0.85rem;
    color: #9ca3af;
    list-style: none;
    padding-left: 0;
    margin-left: 20px;
}

/* Tables */
.table-container {
    padding: 1.5rem 2rem 2rem;
    flex: 1;
    overflow: auto;
}
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
.data-table th, .data-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}
.data-table th { background-color: #f9fafb; font-weight: 600; font-size: 0.875rem; }

.source-cell {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    transition: background-color 0.2s;
}
.source-cell:hover {
    background-color: rgba(0,0,0,0.05);
}
.source-icon {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* Click-to-Edit Inputs */
.click-edit-input, .click-edit-select, .click-edit-textarea {
    border: 1px solid transparent;
    background: transparent;
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    transition: all 0.2s;
    width: 100%;
    box-sizing: border-box;
}
.click-edit-input:hover, .click-edit-select:hover, .click-edit-textarea:hover {
    background-color: rgba(0,0,0,0.05);
}
.click-edit-input:focus, .click-edit-select:focus, .click-edit-textarea:focus {
    border-color: #3b82f6;
    background-color: #fff;
    outline: none;
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}
.click-edit-select { appearance: none; cursor: pointer; }

/* Dropdowns in Table/Modal that look like badges */
.badge-select {
    padding: 0.25rem 0.6rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
    width: auto;
    border: 1px solid transparent;
}
.badge-select option { font-weight: 500; }

/* Custom coloring for option dropdowns when opened */
option[value="In progress"] { background-color: #d1fae5 !important; color: #065f46 !important; }
option[value="Done"] { background-color: #dbeafe !important; color: #1e40af !important; }
option[value="Not started"] { background-color: #f3f4f6 !important; color: #374151 !important; }
option[value="Ready to use"] { background-color: #e0e7ff !important; color: #3730a3 !important; }
option[value="Stalled"] { background-color: #ffedd5 !important; color: #9a3412 !important; }

select[data-type="assignee"] option, #filter-person option {
    background-color: #fae8ff !important;
    color: #86198f !important;
}
select option[value=""] {
    background-color: #fff !important;
    color: var(--text-secondary) !important;
}

/* Date Picker Inputs */
.date-input {
    cursor: pointer;
    background-color: #fff;
    border: 1px dashed var(--border-color);
    border-radius: 9999px;
    padding: 0.25rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    width: 100%;
    max-width: 150px;
    text-align: center;
    color: var(--text-primary);
    transition: all 0.2s;
}
.date-input:hover {
    background-color: #f9fafb;
    border-color: var(--text-secondary);
}
.date-input.has-date {
    border-style: solid;
    background-color: #f3f4f6;
    color: #4b5563;
    border-color: #d1d5db;
}

/* Flatpickr Premium Overrides */
.flatpickr-calendar {
    font-family: 'Inter', sans-serif !important;
    border-radius: 8px !important;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05) !important;
    border: 1px solid var(--border-color) !important;
}
.flatpickr-day.selected {
    background: #3b82f6 !important;
    border-color: #3b82f6 !important;
}

/* Modal */
/* Modal Overlay */
.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
    justify-content: center;
    align-items: center;
}
.modal.open {
    display: flex;
}
.modal-content {
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2);
    max-width: 800px;
    width: 90%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start; /* For auto-resize textarea */
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}
.title-input {
    font-size: 1.5rem;
    font-weight: 600;
    width: 70%;
    resize: none;
    overflow: hidden; /* Hide scrollbar for auto-resize */
}
.modal-header-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

/* Dropdown Menu */
.dropdown { position: relative; display: inline-block; }
.dropdown-menu {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    background-color: #fff;
    min-width: 160px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    z-index: 10;
    padding: 0.5rem 0;
}
.dropdown-menu.show { display: block; }
.dropdown-item {
    padding: 0.5rem 1rem;
    text-decoration: none;
    display: block;
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 0.875rem;
    font-family: inherit;
}
.dropdown-item:hover { background-color: #f3f4f6; }

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}
.modal-meta {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
}
.meta-item { display: flex; flex-direction: column; gap: 0.25rem; }
.meta-item label { font-weight: 500; font-size: 0.875rem; color: var(--text-secondary); padding-left: 0.5rem; }

.modal-description h3, .modal-subtasks h3 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
}
.auto-resize {
    resize: none;
    overflow: hidden;
    min-height: 40px;
}
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}
.section-header h3 { margin: 0; }

/* Toast Notification for Undo */
.toast {
    visibility: hidden;
    min-width: 250px;
    background-color: #333;
    color: #fff;
    text-align: center;
    border-radius: 8px;
    padding: 1rem;
    position: fixed;
    z-index: 1000;
    left: 50%;
    bottom: 30px;
    transform: translateX(-50%);
    font-size: 0.875rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}
.toast.show {
    visibility: visible;
    animation: fadein 0.5s, fadeout 0.5s 4.5s;
}
.toast button {
    background: #3b82f6;
    color: white;
    border: none;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 500;
}
.toast button:hover { background: #2563eb; }

@keyframes fadein {
    from {bottom: 0; opacity: 0;}
    to {bottom: 30px; opacity: 1;}
}
@keyframes fadeout {
    from {bottom: 30px; opacity: 1;}
    to {bottom: 0; opacity: 0;}
}

/* Badge Select colors everywhere with high specificity */
select.badge-select.badge-status-in-progress, .badge-select.badge-status-in-progress:hover, .badge-select.badge-status-in-progress:focus { background-color: var(--status-progress-bg) !important; color: var(--status-progress-text) !important; }
select.badge-select.badge-status-done, .badge-select.badge-status-done:hover, .badge-select.badge-status-done:focus { background-color: var(--status-done-bg) !important; color: var(--status-done-text) !important; }
select.badge-select.badge-status-stalled, .badge-select.badge-status-stalled:hover, .badge-select.badge-status-stalled:focus { background-color: var(--status-stalled-bg) !important; color: var(--status-stalled-text) !important; }
select.badge-select.badge-status-not-started, .badge-select.badge-status-not-started:hover, .badge-select.badge-status-not-started:focus { background-color: var(--status-notstarted-bg) !important; color: var(--status-notstarted-text) !important; }
select.badge-select.badge-status-ready-to-use, .badge-select.badge-status-ready-to-use:hover, .badge-select.badge-status-ready-to-use:focus { background-color: var(--status-ready-bg) !important; color: var(--status-ready-text) !important; }

/* Header Navigation Menu */
.header-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
}
.nav-link {
    color: #3b82f6;
    text-decoration: none;
    transition: color 0.2s;
    cursor: pointer;
}
.nav-link:hover {
    text-decoration: underline;
}
.nav-link.link-disabled {
    color: var(--text-primary);
    cursor: default;
    pointer-events: none;
    text-decoration: none;
}
.nav-separator {
    color: var(--text-secondary);
}

/* Overdue highlights */
.deadline-overdue {
    background-color: #FFDCDC !important;
    color: #b30000 !important;
}

.row-overdue {
    background-color: #FFDCDC !important;
}
.row-overdue td {
    background-color: #FFDCDC !important;
}
.row-overdue select, .row-overdue textarea, .row-overdue input {
    background-color: rgba(255, 255, 255, 0.4) !important;
}