/* --- Vercel / Linear Dark Design System --- */
:root {
    --bg-main: #09090b;
    --bg-surface: #121215;
    --bg-surface-hover: #1c1c21;
    --border-color: #27272a;
    --border-hover: #3f3f46;
    
    --primary-color: #3b82f6;
    --primary-hover: #60a5fa;
    --primary-glow: rgba(59, 130, 246, 0.15);
    
    --success-color: #10b981;
    --success-bg: rgba(16, 185, 129, 0.1);
    
    --warning-color: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.1);
    
    --danger-color: #ef4444;
    --danger-hover: #f87171;
    
    --text-primary: #f4f4f5;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-display: var(--font-sans);
    
    --sidebar-width: 250px;
    --border-radius-lg: 12px;
    --border-radius-md: 8px;
    --border-radius-sm: 6px;
    
    --transition-smooth: all 0.15s ease-in-out;
}

/* --- Base Reset & Typography --- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-sans);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* --- Common UI Controls & Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-sans);
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition-smooth);
    gap: 0.4rem;
    white-space: nowrap;
}

.btn-sm {
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
}

.btn-primary {
    background-color: var(--text-primary);
    color: #09090b;
    font-weight: 600;
}

.btn-primary:hover {
    background-color: #e4e4e7;
}

.btn-secondary {
    background-color: var(--bg-surface-hover);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--border-color);
    border-color: var(--border-hover);
}

.btn-danger {
    background-color: rgba(239, 68, 68, 0.15);
    color: var(--danger-color);
    border-color: rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    background-color: var(--danger-color);
    color: #ffffff;
}

.btn-block {
    width: 100%;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.55rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-error {
    background-color: rgba(239, 68, 68, 0.12);
    color: var(--danger-color);
}

.badge-success {
    background-color: var(--success-bg);
    color: var(--success-color);
}

.badge-warning {
    background-color: var(--warning-bg);
    color: var(--warning-color);
}

/* --- Screens & Navigation --- */
.screen {
    display: none;
    min-height: 100vh;
}

.screen.active {
    display: block;
}

/* --- Auth Screen --- */
#auth-screen {
    display: none;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background-color: var(--bg-main);
}

#auth-screen.active {
    display: flex;
}

.auth-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 2.25rem;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.auth-logo-box {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 1rem;
}

.auth-logo-title {
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--text-primary);
}

.auth-header h2 {
    font-size: 1.35rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.auth-header p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.auth-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin: 1.5rem 0;
}

.tab-btn {
    flex: 1;
    background: none;
    border: none;
    padding: 0.6rem;
    color: var(--text-muted);
    font-weight: 500;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: var(--transition-smooth);
}

.tab-btn.active {
    color: var(--text-primary);
    border-bottom-color: var(--primary-color);
}

.auth-form {
    display: none;
}

.auth-form.active {
    display: block;
}

/* --- Form Controls --- */
.input-group {
    margin-bottom: 1.1rem;
}

.input-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
}

.input-group input,
.input-group select,
.input-group textarea {
    width: 100%;
    padding: 0.6rem 0.8rem;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    outline: none;
    transition: var(--transition-smooth);
}

.input-group input:focus,
.input-group select:focus,
.input-group textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 1px var(--primary-color);
}

.error-msg {
    color: var(--danger-color);
    font-size: 0.8rem;
    margin-bottom: 1rem;
}

.success-msg {
    color: var(--success-color);
    font-size: 0.8rem;
    margin-bottom: 1rem;
}

/* --- Layout Main --- */
.app-layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-surface);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 1.25rem 1rem;
    position: fixed;
    height: 100vh;
    z-index: 10;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.25rem 0.5rem 1.25rem 0.5rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1rem;
}

.logo-text {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-primary);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 0.6rem 0.75rem;
    background: none;
    border: none;
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-smooth);
    gap: 0.65rem;
    width: 100%;
    text-align: left;
}

.nav-item:hover {
    background-color: var(--bg-surface-hover);
    color: var(--text-primary);
}

.nav-item.active {
    background-color: var(--bg-surface-hover);
    color: var(--primary-color);
}

.nav-svg {
    opacity: 0.8;
}

.nav-item.active .nav-svg {
    opacity: 1;
    stroke: var(--primary-color);
}

.sidebar-projects-section {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    flex: 1;
    overflow-y: auto;
}

.sidebar-projects-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0 0.5rem 0.5rem 0.5rem;
}

.btn-add-project-icon {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
}

.btn-add-project-icon:hover {
    color: var(--text-primary);
}

.sidebar-project-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.45rem 0.75rem;
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.sidebar-project-item:hover {
    background-color: var(--bg-surface-hover);
    color: var(--text-primary);
}

.sidebar-project-item.active {
    background-color: var(--border-color);
    color: var(--text-primary);
}

.sidebar-footer {
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: #09090b;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 600;
    font-size: 0.85rem;
}

.user-role {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.btn-logout {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.3rem;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
}

.btn-logout:hover {
    color: var(--danger-color);
}

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    padding: 2rem 2.5rem;
}

.app-view {
    display: none;
}

.app-view.active {
    display: block;
}

.view-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.75rem;
}

.view-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.2rem;
}

/* --- Panel Cards & Widgets --- */
.panel-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
}

.panel-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
}

.panel-card-title {
    font-size: 1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Resource Widgets Grid */
.monitoring-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.metric-widget {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 1.1rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition-smooth);
}

.metric-widget:hover {
    border-color: var(--border-hover);
    background-color: var(--bg-surface-hover);
}

.monitor-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.monitor-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0.4rem 0 0.2rem 0;
    letter-spacing: -0.02em;
}

.monitor-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.monitor-progress-bar {
    width: 100%;
    height: 4px;
    background-color: var(--bg-main);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 0.5rem;
}

.monitor-progress-fill {
    height: 100%;
    background-color: var(--primary-color);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.click-hint {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--primary-color);
    margin-top: 0.6rem;
    text-align: right;
}

/* Dashboard Split Grid (Docker + Tasks) */
.dashboard-main-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 1.5rem;
}

@media (max-width: 1100px) {
    .dashboard-main-grid {
        grid-template-columns: 1fr;
    }
}

/* --- Task List & CLICKABLE TASK CARDS --- */
.tasks-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-height: 480px;
    overflow-y: auto;
    padding-right: 0.25rem;
}

/* Task Item Card - COMPLETELY CLICKABLE */
.task-item {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.85rem 1rem;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    cursor: pointer; /* Pointer for full card clickability */
    transition: var(--transition-smooth);
    user-select: none;
}

.task-item:hover {
    border-color: var(--border-hover);
    background-color: var(--bg-surface-hover);
    transform: translateY(-1px);
}

.task-checkbox-container {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.2rem;
    cursor: pointer;
}

.task-checkbox {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-color);
    cursor: pointer;
}

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

.task-title-text {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

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

.task-meta {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.2rem;
}

.task-actions {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.btn-task-action {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: var(--border-radius-sm);
    transition: var(--transition-smooth);
}

.btn-task-action:hover {
    color: var(--danger-color);
    background-color: rgba(239, 68, 68, 0.1);
}

/* Filter Bar */
.filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
}

.filter-buttons {
    display: flex;
    gap: 0.25rem;
    background-color: var(--bg-main);
    padding: 0.2rem;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
}

.filter-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 0.3rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
}

.filter-btn.active {
    background-color: var(--bg-surface-hover);
    color: var(--text-primary);
}

.search-box input {
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    width: 170px;
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}

.empty-state h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.3rem;
}

.empty-state p {
    font-size: 0.8rem;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
}

.users-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.users-table th {
    padding: 0.65rem 0.85rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.users-table td {
    padding: 0.75rem 0.85rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.users-table tr:hover td {
    background-color: var(--bg-surface-hover);
}

.font-small {
    font-size: 0.8rem;
}

/* --- Modals --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.75);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100;
    backdrop-filter: blur(2px);
}

.modal-overlay.active {
    display: flex;
}

.modal-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 1.75rem;
    width: 100%;
    max-width: 500px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.6);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
}

.modal-header h2 {
    font-size: 1.15rem;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.6rem;
    margin-top: 1.5rem;
}

/* Calendar View (Linear / Vercel Grid) */
.calendar-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
}

.calendar-nav h2 {
    font-size: 1.15rem;
    font-weight: 600;
}

.calendar-grid-header {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    text-align: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 0.5rem;
}

.calendar-grid-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 1px;
    background-color: var(--border-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    overflow: hidden;
}

.calendar-day-cell {
    background-color: var(--bg-main);
    min-height: 115px;
    padding: 0.65rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.calendar-day-cell:hover {
    background-color: var(--bg-surface-hover);
}

.calendar-day-cell.other-month {
    opacity: 0.3;
    background-color: #08080a;
}

.calendar-day-cell.today {
    background-color: rgba(59, 130, 246, 0.05);
}

.calendar-day-cell.today .day-number {
    color: var(--primary-color);
    font-weight: 700;
    background-color: rgba(59, 130, 246, 0.15);
    padding: 0.15rem 0.45rem;
    border-radius: 4px;
}

.day-number {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    align-self: flex-start;
}

.calendar-day-tasks {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    overflow-y: auto;
    max-height: 80px;
}

.calendar-task-badge {
    font-size: 0.72rem;
    padding: 0.2rem 0.45rem;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    text-overflow: ellipsis;
    white-space: nowrap;
    overflow: hidden;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.calendar-task-badge:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background-color: var(--bg-surface-hover);
}

.calendar-task-badge.completed {
    text-decoration: line-through;
    opacity: 0.5;
}

/* Telegram view */
.tg-status-banner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem;
    background-color: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    margin-bottom: 1.5rem;
}

.instructions-list {
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    list-style: none;
}

.instructions-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
}

.step-num {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background-color: var(--border-color);
    color: var(--text-primary);
    font-size: 0.75rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tg-actions {
    margin-top: 1.5rem;
}