/* Shop Tasks - Main Layout CSS */
/* Todoist-style three-column layout */

/* CSS Variables - 2A Zone Brand Colors */
:root {
    /* Colors - Blue accent theme */
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-accent: #2563eb;
    --color-accent-hover: #1d4ed8;
    --color-success: #16a34a;
    --color-success-hover: #15803d;
    --color-danger: #ef4444;
    --color-warning: #f59e0b;

    /* Priority colors */
    --priority-1: #ef4444;
    --priority-2: #f59e0b;
    --priority-3: #3b82f6;
    --priority-4: #6b7280;

    /* Grays */
    --color-bg: #f5f5f5;
    --color-bg-secondary: #ffffff;
    --color-border: #e5e5e5;
    --color-border-hover: #d4d4d4;
    --color-text: #171717;
    --color-text-secondary: #525252;
    --color-text-muted: #a3a3a3;

    /* Sidebar */
    --sidebar-bg: #fafafa;
    --sidebar-width: 280px;
    --sidebar-width-collapsed: 0px;

    /* Detail panel */
    --detail-width: 400px;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.2s ease;
    --transition-slow: 0.3s ease;

    /* Z-index layers */
    --z-sidebar: 100;
    --z-detail: 90;
    --z-overlay: 200;
    --z-modal: 300;
}

/* Reset and Base */
*, *::before, *::after {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--color-text);
    background-color: var(--color-bg);
}

/* Login Screen */
.login-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #1e3a5f 0%, #2563eb 100%);
    padding: var(--spacing-md);
}

.login-card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xl);
    width: 100%;
    max-width: 400px;
}

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.login-header h1 {
    margin: 0 0 var(--spacing-sm);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-text);
}

.login-header p {
    margin: 0;
    color: var(--color-text-secondary);
}

.login-error {
    background: #fef2f2;
    color: var(--color-danger);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
    display: none;
}

.login-error:not(:empty) {
    display: block;
}

/* Main App Container - Three Column Layout */
.app-container {
    display: none;
    height: 100vh;
    overflow: hidden;
}

.app-container.active {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    grid-template-rows: 1fr;
}

.app-container.detail-open {
    grid-template-columns: var(--sidebar-width) 1fr var(--detail-width);
}

/* Mobile Header */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
    padding: 0 var(--spacing-md);
    align-items: center;
    justify-content: space-between;
    z-index: var(--z-sidebar);
}

.hamburger-btn {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.hamburger-btn span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--color-text);
    margin: 2px 0;
    transition: var(--transition-fast);
}

.mobile-title {
    font-size: 18px;
    font-weight: 600;
    margin: 0;
}

.header-icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-secondary);
}

.header-icon-btn svg {
    width: 24px;
    height: 24px;
}

/* Sidebar Overlay (mobile) */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: calc(var(--z-sidebar) - 1);
}

.sidebar-overlay.active {
    display: block;
}

/* Main Content */
.main-content {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    background: var(--color-bg-secondary);
}

/* View Header */
.view-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
}

.view-title {
    margin: 0;
    font-size: 20px;
    font-weight: 700;
}

.view-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Icon Button */
.icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    color: var(--color-text-secondary);
    transition: var(--transition-fast);
}

.icon-btn:hover {
    background: var(--color-bg);
    color: var(--color-text);
}

.icon-btn svg {
    width: 20px;
    height: 20px;
}

/* Task List Container */
.task-list-container {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md) var(--spacing-xl);
}

/* Task Group */
.task-group {
    margin-bottom: var(--spacing-lg);
}

.task-group-header {
    display: flex;
    align-items: center;
    padding: var(--spacing-sm) 0;
    margin-bottom: var(--spacing-sm);
}

.task-group-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
}

.task-group-count {
    margin-left: var(--spacing-sm);
    font-size: 12px;
    color: var(--color-text-muted);
}

/* Task Item */
.task-item {
    display: flex;
    align-items: flex-start;
    padding: var(--spacing-sm) var(--spacing-sm);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
}

.task-item:hover {
    background: var(--color-bg);
}

.task-item.selected {
    background: #f0f7ff;
}

.task-checkbox {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    margin-top: 2px;
    margin-right: var(--spacing-sm);
    border: 2px solid var(--priority-4);
    border-radius: 50%;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    transition: var(--transition-fast);
}

.task-checkbox:checked {
    background: var(--color-success);
    border-color: var(--color-success);
}

.task-checkbox.priority-1 {
    border-color: var(--priority-1);
}

.task-checkbox.priority-2 {
    border-color: var(--priority-2);
}

.task-checkbox.priority-3 {
    border-color: var(--priority-3);
}

.task-content {
    flex: 1;
    min-width: 0;
}

.task-name {
    font-size: 14px;
    color: var(--color-text);
    margin: 0;
    word-break: break-word;
}

.task-item.completed .task-name {
    text-decoration: line-through;
    color: var(--color-text-muted);
}

.task-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xs);
    font-size: 12px;
    color: var(--color-text-secondary);
}

.task-due {
    display: flex;
    align-items: center;
    gap: 4px;
}

.task-due.overdue {
    color: var(--color-danger);
}

.task-due.today {
    color: var(--color-success);
}

.task-project {
    display: flex;
    align-items: center;
    gap: 4px;
}

.task-project-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.task-assignee {
    color: var(--color-text-muted);
}

.task-comment-count {
    display: flex;
    align-items: center;
    gap: 2px;
    color: var(--color-text-muted);
}

/* Add Task Button (inline) */
.add-task-inline {
    display: flex;
    align-items: center;
    padding: var(--spacing-sm);
    color: var(--color-text-muted);
    cursor: pointer;
    transition: var(--transition-fast);
}

.add-task-inline:hover {
    color: var(--color-primary);
}

.add-task-inline .plus-icon {
    margin-right: var(--spacing-sm);
    font-size: 16px;
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) * 2;
    text-align: center;
}

.empty-state-icon {
    font-size: 48px;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.empty-state-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 var(--spacing-sm);
}

.empty-state-text {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin: 0;
}

/* Loading State */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

.spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Leaderboard Styles */
.leaderboard-list {
    padding: var(--spacing-md);
}

.leaderboard-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.leaderboard-rank {
    width: 32px;
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text-muted);
}

.leaderboard-rank.gold {
    color: #ffc107;
}

.leaderboard-rank.silver {
    color: #9e9e9e;
}

.leaderboard-rank.bronze {
    color: #cd7f32;
}

.leaderboard-name {
    flex: 1;
    font-weight: 500;
}

.leaderboard-points {
    font-weight: 700;
    color: var(--color-primary);
}

/* Manager-only elements */
.manager-only {
    display: none;
}

body.is-manager .manager-only {
    display: block;
}

button.manager-only,
a.manager-only {
    display: none;
}

body.is-manager button.manager-only,
body.is-manager a.manager-only {
    display: inline-flex;
}

/* Utility Classes */
.text-muted {
    color: var(--color-text-muted);
}

.hidden {
    display: none !important;
}