:root {
    --bg-color: #0d1117;
    --glass-bg: rgba(22, 27, 34, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #c9d1d9;
    --text-secondary: #8b949e;
    --accent: #58a6ff;
    --accent-hover: #3182ce;
    --error: #f85149;
    
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    --font-main: 'Inter', sans-serif;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    background-image: radial-gradient(circle at top right, rgba(88, 166, 255, 0.1), transparent 40%),
                      radial-gradient(circle at bottom left, rgba(248, 81, 73, 0.05), transparent 40%);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Glassmorphism Utilities */
.glass-panel {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

/* Typography */
h1, h2, h3 { color: #fff; font-weight: 600; }
a { color: var(--accent); text-decoration: none; }

/* Buttons */
.btn {
    padding: 8px 16px;
    border-radius: 6px;
    border: none;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: var(--font-main);
}
.primary-btn {
    background-color: var(--accent);
    color: #fff;
    box-shadow: 0 0 10px rgba(88, 166, 255, 0.2);
}
.primary-btn:hover {
    background-color: var(--accent-hover);
    box-shadow: 0 0 15px rgba(88, 166, 255, 0.4);
}
.secondary-btn {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
}
.secondary-btn:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

/* Auth Overlay */
.auth-overlay, .modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    transition: opacity 0.3s ease;
}
.hidden {
    opacity: 0;
    pointer-events: none;
}
.auth-modal, .task-modal {
    width: 100%;
    max-width: 400px;
    padding: 32px;
    text-align: center;
}
.task-modal {
    max-width: 500px;
    text-align: left;
}
.subtitle { margin-bottom: 24px; color: var(--text-secondary); }

/* Forms */
input, textarea, select {
    width: 100%;
    padding: 12px;
    margin-bottom: 16px;
    border-radius: 6px;
    border: 1px solid var(--glass-border);
    background: rgba(0, 0, 0, 0.2);
    color: var(--text-primary);
    font-family: var(--font-main);
    transition: border-color 0.2s;
}
input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--accent);
}
.error-msg { color: var(--error); font-size: 14px; margin-top: 10px; min-height: 20px;}

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 32px;
    margin: 16px;
}
.logo { font-size: 20px; font-weight: 700; color: #fff; letter-spacing: 1px; }

/* Kanban Board */
.board-container {
    display: flex;
    flex: 1;
    gap: 24px;
    padding: 0 32px 32px 32px;
    overflow-x: auto;
}
.kanban-column {
    flex: 1;
    min-width: 300px;
    display: flex;
    flex-direction: column;
    background: rgba(22, 27, 34, 0.3);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 16px;
}
.column-title {
    margin-bottom: 16px;
    font-size: 16px;
    color: var(--text-secondary);
    display: flex;
    justify-content: space-between;
}
.task-list {
    flex: 1;
    min-height: 50px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Task Card */
.task-card {
    padding: 16px;
    cursor: grab;
    transition: transform 0.2s, box-shadow 0.2s;
}
.task-card:active { cursor: grabbing; }
.task-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.2);
}
.task-card h4 { margin-bottom: 8px; font-size: 15px; }
.task-card .task-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.task-card .task-meta {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: #6e7681;
}

.dragging { opacity: 0.5; }
.drag-over { background: rgba(88, 166, 255, 0.1); border-color: var(--accent); }

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 16px;
}

/* Profile Menu */
.profile-menu {
    position: relative;
    display: inline-block;
    margin-left: 20px;
}
.profile-trigger {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 5px 10px;
    border-radius: 20px;
    transition: background 0.2s;
}
.profile-trigger:hover {
    background: rgba(255, 255, 255, 0.05);
}
.avatar-img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    object-fit: cover;
}
#profile-name {
    font-size: 14px;
    font-weight: 500;
}
.profile-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 10px;
    min-width: 200px;
    padding: 8px 0;
    z-index: 100;
}
.dropdown-item {
    display: block;
    padding: 10px 16px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 14px;
    transition: background 0.2s;
}
.dropdown-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
}
.dropdown-divider {
    height: 1px;
    background: var(--glass-border);
    margin: 4px 0;
}

/* Form layout updates */
.task-modal {
    max-width: 700px;
}
.form-group {
    margin-bottom: 20px;
}

/* Custom Select */
.custom-select-wrapper {
    position: relative;
    user-select: none;
    width: 100%;
}
.custom-select {
    position: relative;
    width: 100%;
}
.custom-select-trigger {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    cursor: pointer;
    color: var(--text-primary);
    transition: border-color 0.2s;
}
.custom-select-trigger span {
    display: flex;
    align-items: center;
}
.custom-select-trigger:hover, .custom-select.open .custom-select-trigger {
    border-color: var(--accent);
}
.custom-select .arrow {
    width: 0;
    height: 0;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 5px solid var(--text-primary);
    transition: transform 0.2s;
}
.custom-select.open .arrow {
    transform: rotate(180deg);
}
.custom-options {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 8px;
    background: var(--bg-color);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    box-shadow: var(--shadow-md);
    z-index: 10;
    overflow: hidden;
}
.custom-option {
    display: flex;
    align-items: center;
    padding: 12px;
    cursor: pointer;
    transition: background 0.2s;
}
.custom-option:hover {
    background: rgba(255, 255, 255, 0.05);
}
.custom-option.selected {
    background: rgba(88, 166, 255, 0.1);
    color: var(--accent);
}
/* SVG Icons */
.dropdown-icon {
    margin-right: 8px;
    vertical-align: text-bottom;
    opacity: 0.8;
}
.icon-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.2s, transform 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}
.icon-btn:hover {
    color: #fff;
}
.close-btn:hover {
    color: var(--error);
    transform: rotate(90deg);
}

/* Task Details Panel */
.task-details-panel {
    text-align: left;
    max-height: 90vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}
.task-details-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}
.task-meta-top {
    display: flex;
    gap: 12px;
    align-items: center;
}
.status-badge {
    padding: 4px 10px;
    background: rgba(88, 166, 255, 0.15);
    color: var(--accent);
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}
.task-id {
    color: var(--text-secondary);
    font-family: monospace;
}
#dt-title {
    margin-bottom: 20px;
    font-size: 24px;
}
.task-desc-full {
    background: rgba(0, 0, 0, 0.2);
    padding: 16px;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
    margin-bottom: 24px;
    line-height: 1.6;
}
.task-desc-full p {
    margin-bottom: 1em;
}

/* Comments Section */
.comments-section {
    border-top: 1px solid var(--glass-border);
    padding-top: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}
.comments-section h3 {
    margin-bottom: 16px;
    font-size: 18px;
}
.comments-list {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 20px;
}
.comment-card {
    display: flex;
    gap: 12px;
    background: rgba(255,255,255,0.02);
    padding: 12px;
    border-radius: 8px;
}
.comment-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    flex-shrink: 0;
}
.comment-body {
    flex: 1;
}
.comment-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: 4px;
    font-size: 12px;
}
.comment-author {
    font-weight: 600;
    color: var(--text-primary);
}
.comment-date {
    color: var(--text-secondary);
}
.comment-content {
    font-size: 14px;
    line-height: 1.5;
    color: #e6edf3;
}

/* Native Select (for Assignees) */
.native-select {
    width: 100%;
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 14px;
    appearance: none;
    outline: none;
    cursor: pointer;
}

/* Priority and Labels */
.priority-icon {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 6px;
}
.priority-Low { background: #3fb950; }
.priority-Medium { background: #d29922; }
.priority-High { background: #f85149; }
.priority-Critical { background: #ff0000; box-shadow: 0 0 8px rgba(255,0,0,0.6); }

.task-label {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
    margin-right: 4px;
    margin-bottom: 4px;
    border: 1px solid rgba(255,255,255,0.1);
}
.label-Bug { background: rgba(248,81,73,0.15); color: #f85149; }
.label-Feature { background: rgba(88,166,255,0.15); color: #58a6ff; }
.label-Design { background: rgba(163,113,247,0.15); color: #a371f7; }
.label-DevOps { background: rgba(210,153,34,0.15); color: #d29922; }
.label-delete-btn {
    margin-left: 4px;
    cursor: pointer;
    opacity: 0.7;
}
.label-delete-btn:hover { opacity: 1; }

.task-badges {
    display: flex;
    flex-wrap: wrap;
    margin-bottom: 8px;
}

.btn.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}
.native-select option {
    background: #0d1117;
    color: var(--text-primary);
}
.dt-assignee-select {
    width: auto;
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
}

/* Rich Comment Form */
.comment-form-rich {
    display: flex;
    flex-direction: column;
    gap: 0;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.2);
}
.md-toolbar {
    display: flex;
    gap: 4px;
    padding: 8px;
    background: rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid var(--glass-border);
}
.md-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
}
.md-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}
.comment-textarea {
    width: 100%;
    min-height: 100px;
    padding: 12px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 14px;
    resize: vertical;
    outline: none;
}
.comment-actions {
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.02);
    border-top: 1px solid var(--glass-border);
    text-align: right;
}

/* Task Card Assignee Avatar */
.card-assignee-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    vertical-align: middle;
    margin-left: 8px;
}

/* Date Input */
.date-input {
    width: 100%;
    padding: 10px 12px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 13px;
    outline: none;
    transition: border-color 0.2s;
    color-scheme: dark;
}
.date-input:focus {
    border-color: var(--accent);
}

/* Due Date Badges */
.due-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    font-weight: 500;
    padding: 2px 7px;
    border-radius: 10px;
    margin-right: 6px;
}
.due-normal {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-secondary);
}
.due-soon {
    background: rgba(210, 153, 34, 0.15);
    color: #d29922;
    border: 1px solid rgba(210, 153, 34, 0.3);
}
.due-overdue {
    background: rgba(248, 81, 73, 0.15);
    color: #f85149;
    border: 1px solid rgba(248, 81, 73, 0.3);
}

/* Subtasks Badge on Task Cards */
.subtasks-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    padding: 2px 7px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-secondary);
    margin-right: 6px;
}
.subtasks-badge.all-done {
    background: rgba(63, 185, 80, 0.15);
    color: #3fb950;
    border: 1px solid rgba(63, 185, 80, 0.3);
}

/* Subtasks Checklist Section in Details Modal */
.subtasks-section {
    margin: 20px 0;
    padding: 16px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
}
.subtasks-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}
.subtasks-counter-text {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}
.subtasks-progress-wrapper {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 14px;
}
.subtasks-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, #58a6ff, #3fb950);
    transition: width 0.3s ease;
    border-radius: 3px;
}
.subtasks-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 12px;
}
.subtask-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 10px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.02);
    transition: background 0.2s;
}
.subtask-item:hover {
    background: rgba(255, 255, 255, 0.05);
}
.subtask-checkbox {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border: 2px solid var(--text-secondary);
    border-radius: 4px;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    position: relative;
    flex-shrink: 0;
}
.subtask-checkbox:checked {
    background: #3fb950;
    border-color: #3fb950;
}
.subtask-checkbox:checked::after {
    content: '';
    display: block;
    width: 4px;
    height: 8px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    margin-bottom: 2px;
}
.subtask-title {
    flex: 1;
    font-size: 13px;
    color: var(--text-primary);
    transition: color 0.2s, text-decoration 0.2s;
    word-break: break-word;
}
.subtask-item.completed .subtask-title {
    text-decoration: line-through;
    color: var(--text-secondary);
}
.subtask-delete-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 16px;
    opacity: 0.4;
    transition: opacity 0.2s, color 0.2s;
    padding: 0 4px;
    line-height: 1;
}
.subtask-delete-btn:hover {
    opacity: 1;
    color: var(--error);
}
.add-subtask-input {
    width: 100%;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px dashed var(--glass-border);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 13px;
    outline: none;
    transition: border-color 0.2s, background 0.2s;
}
.add-subtask-input:focus {
    border-color: var(--accent);
    background: rgba(255, 255, 255, 0.05);
}