:root{
    --bg:#ffffff;
    --panel:#f8fafc;
    --muted:#64748b;
    --text:#1e293b;
    --accent:#3b82f6;
    --error:#ef4444;
    --border:#e2e8f0;
    --success:#10b981;
    --warning:#f59e0b;
    --info:#06b6d4;
    --primary:#3b82f6;
    --secondary:#64748b;
    --surface:#ffffff;
    --surface-hover:#f1f5f9;
    --shadow:0 1px 3px 0 rgba(0,0,0,0.1),0 1px 2px 0 rgba(0,0,0,0.06);
    --shadow-lg:0 10px 15px -3px rgba(0,0,0,0.1),0 4px 6px -2px rgba(0,0,0,0.05);
    --radius:8px;
    --radius-lg:12px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font:16px/1.5 system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;line-height:1.6}
.container{max-width:1400px;margin:0 auto;padding:24px}
.site-header{background:var(--surface);border-bottom:1px solid var(--border);box-shadow:var(--shadow);position:sticky;top:0;z-index:100}
.site-header .container{display:flex;align-items:center;justify-content:space-between;padding:16px 24px}
.brand{font-weight:700;font-size:24px;color:var(--primary);display:flex;align-items:center;gap:8px}
.brand i{font-size:28px}
nav{display:flex;align-items:center;gap:8px}
nav a{color:var(--text);text-decoration:none;padding:10px 16px;border-radius:var(--radius);transition:all 0.2s;font-weight:500;display:flex;align-items:center;gap:6px}
nav a:hover{background:var(--surface-hover);color:var(--primary)}
nav a.active{background:var(--primary);color:white}
nav i{font-size:16px}
.user-menu{display:flex;align-items:center;gap:12px}
.user-name{font-weight:500;color:var(--text)}

/* Cards and Forms */
.auth-card,.card{background:var(--surface);padding:24px;border:1px solid var(--border);border-radius:var(--radius-lg);margin:24px 0;box-shadow:var(--shadow)}

/* Auth Form Styles */
.auth-card {
    max-width: 400px;
    margin: 60px auto;
    text-align: center;
}

.auth-card h1 {
    margin-bottom: 24px;
    color: var(--text);
    font-size: 28px;
    font-weight: 700;
}

.auth-card form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.auth-card label {
    display: flex;
    flex-direction: column;
    text-align: left;
    font-weight: 600;
    color: var(--text);
    font-size: 14px;
    margin-bottom: 0;
}

.auth-card input {
    width: 100%;
    padding: 12px 16px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    font-size: 14px;
    transition: all 0.2s;
    margin-top: 8px;
}

.auth-card input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
}

.auth-card button {
    width: 100%;
    padding: 12px 20px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: var(--shadow);
}

.auth-card button:hover {
    background: #2563eb;
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.auth-card .muted {
    margin-top: 16px;
    font-size: 13px;
    line-height: 1.4;
}

.auth-card p {
    margin: 8px 0;
}

.auth-card a {
    color: var(--primary);
    text-decoration: none;
}

.auth-card a:hover {
    text-decoration: underline;
}
.form-group{margin-bottom:20px}
.form-group label{display:block;margin-bottom:8px;font-weight:600;color:var(--text);font-size:14px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 16px;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:14px;transition:all 0.2s}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(59,130,246,0.1)}
.form-group textarea{resize:vertical;min-height:80px}
.form-group small{display:block;margin-top:4px;color:var(--muted);font-size:12px}
.form-row{display:flex;gap:12px;align-items:end}
.form-row .form-group{flex:1}
.form-actions{display:flex;gap:12px;margin-top:20px}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:var(--radius);text-decoration:none;font-weight:600;cursor:pointer;border:none;font-size:14px;transition:all 0.2s;box-shadow:var(--shadow)}
.btn-primary{background:var(--primary);color:white}
.btn-primary:hover{background:#2563eb;transform:translateY(-1px);box-shadow:var(--shadow-lg)}
.btn-secondary{background:var(--secondary);color:white}
.btn-secondary:hover{background:#475569;transform:translateY(-1px)}
.btn-success{background:var(--success);color:white}
.btn-success:hover{background:#059669;transform:translateY(-1px)}
.btn-warning{background:var(--warning);color:white}
.btn-warning:hover{background:#d97706;transform:translateY(-1px)}
.btn-info{background:var(--info);color:white}
.btn-info:hover{background:#0891b2;transform:translateY(-1px)}
.btn-error{background:var(--error);color:white}
.btn-error:hover{background:#dc2626;transform:translateY(-1px)}
.btn-sm{padding:8px 16px;font-size:13px}
.btn-icon{padding:8px;min-width:40px;justify-content:center}
.inline{display:inline-block}

/* Alerts and Messages */
.muted{color:var(--muted);font-size:14px}
.alert{padding:12px;border-radius:8px;margin:12px 0}
.alert-error{background:rgba(239,68,68,.15);border:1px solid var(--error)}

/* Dashboard */
.dashboard .stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.stat{background:var(--panel);padding:16px;border:1px solid var(--border);border-radius:10px;text-align:center}
.stat .num{font-size:28px;font-weight:800}
.dashboard-actions{display:flex;gap:12px;margin:24px 0}

/* Tables */
.table{width:100%;border-collapse:collapse}
.table th,.table td{border-bottom:1px solid var(--border);padding:10px;text-align:left}
.table th{font-weight:600;background:rgba(255,255,255,0.05)}

/* Boards */
.boards-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.boards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}
.board-card{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:16px}
.board-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.board-card h3{margin:0;font-size:18px}
.board-role{font-size:12px;padding:4px 8px;border-radius:4px;font-weight:600}
.board-role.viewer{background:var(--muted);color:var(--text)}
.board-role.editor{background:var(--info);color:white}
.board-role.admin{background:var(--accent);color:#07130c}
.board-description{color:var(--muted);margin-bottom:8px}
.board-prefix{font-size:12px;color:var(--muted);margin-bottom:12px}
.board-actions{display:flex;gap:8px;flex-wrap: wrap;}

/* Board */
.board-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:32px;padding:24px;background:var(--surface);border-radius:var(--radius-lg);box-shadow:var(--shadow)}
.board-info h1{margin:0 0 8px 0;font-size:28px;font-weight:700;color:var(--text)}
.board-info .board-description{color:var(--muted);margin:0 0 8px 0;font-size:16px}
.board-info .board-prefix{font-size:14px;color:var(--muted);background:var(--surface-hover);padding:4px 12px;border-radius:var(--radius);display:inline-block}
.board{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:24px}
.column{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);min-height:500px;display:flex;flex-direction:column;box-shadow:var(--shadow)}
.column-title{padding:16px 20px;border-bottom:1px solid var(--border);font-weight:700;font-size:16px;color:var(--text);background:var(--surface-hover)}
.column-body{padding:16px;flex:1;min-height:300px}

/* Task Cards */
.task-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px;margin-bottom:16px;cursor:grab;box-shadow:var(--shadow);transition:all 0.2s}
.task-card:hover{border-color:var(--primary);transform:translateY(-2px);box-shadow:var(--shadow-lg)}
.task-card.dragging{opacity:0.5;transform:rotate(5deg)}
.task-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.task-number{font-size:12px;font-weight:600;color:var(--accent)}
.task-assignee{font-size:12px;color:var(--muted)}
.task-title{font-weight:700;margin-bottom:6px;line-height:1.3}
.task-desc{color:var(--muted);font-size:14px;margin-bottom:8px;line-height:1.4;cursor:pointer}
.task-desc:hover{color:var(--text)}
.task-files{margin-bottom:8px}
.file-link{display:block;font-size:12px;color:var(--info);text-decoration:none;margin-bottom:2px}
.file-link:hover{text-decoration:underline}
.task-time{font-size:12px;color:var(--muted);margin-bottom:8px;font-family:monospace}
.task-actions{display:flex;gap:4px}

/* Modals */
.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.8);display:flex;align-items:center;justify-content:center;z-index:1000}
.modal-content{background:var(--panel);border-radius:12px;max-width:500px;width:90%;max-height:90vh;overflow:hidden}
.modal-large{max-width:700px}
.modal-header{display:flex;justify-content:space-between;align-items:center;padding:16px 20px;border-bottom:1px solid var(--border)}
.modal-header h3{margin:0}
.modal-close{background:none;border:none;color:var(--muted);font-size:24px;cursor:pointer;padding:0;width:24px;height:24px;display:flex;align-items:center;justify-content:center}
.modal-close:hover{color:var(--text)}
.modal-body{padding:20px;overflow-y:auto;max-height:calc(90vh - 80px)}

/* Board Access */
.board-access h2{margin-bottom:16px}
.access-info{margin-bottom:20px;padding:12px;background:rgba(255,255,255,0.05);border-radius:8px}
.access-form .form-row{flex-wrap:wrap}
.access-form .form-row select{flex:1;min-width:150px}
.role-badge{font-size:12px;padding:4px 8px;border-radius:4px;font-weight:600}
.role-badge.viewer{background:var(--muted);color:var(--text)}
.role-badge.editor{background:var(--info);color:white}
.role-badge.admin{background:var(--accent);color:#07130c}

/* Empty State */
.empty-state{text-align:center;padding:60px 20px;color:var(--muted)}
.empty-state i{font-size:48px;margin-bottom:16px;opacity:0.5}
.empty-state h2{margin:0 0 12px 0;color:var(--text)}
.empty-state p{margin:0 0 24px 0;max-width:400px;margin-left:auto;margin-right:auto}

/* Trumbowyg Customization */
.trumbowyg-box{background:var(--surface) !important;border-color:var(--border) !important}
.trumbowyg-toolbar{background:var(--surface-hover) !important;border-color:var(--border) !important}
.trumbowyg-editor{background:var(--surface) !important;color:var(--text) !important}
.trumbowyg-editor:focus{outline:none;border-color:var(--primary) !important}

/* Comments */
.comments-section{margin-top:24px}
.comment{background:var(--surface-hover);border-radius:var(--radius);padding:16px;margin-bottom:16px;border-left:4px solid var(--primary)}
.comment-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
.comment-author{font-weight:600;color:var(--text)}
.comment-date{font-size:12px;color:var(--muted)}
.comment-content{color:var(--text);line-height:1.6}
.comment-actions{margin-top:12px;display:flex;gap:8px}
.comment-form{margin-top:16px}
.comment-input{width:100%;min-height:80px;padding:12px;border:1px solid var(--border);border-radius:var(--radius);resize:vertical}
.comment-edit-input{width:100%;min-height:80px;padding:12px;border:1px solid var(--border);border-radius:var(--radius);resize:vertical;margin-bottom:8px}
.comment-edit-actions{display:flex;gap:8px}

/* Tags */
.tag{display:inline-flex;align-items:center;gap:4px;padding:4px 8px;border-radius:var(--radius);font-size:12px;font-weight:500;margin-right:4px;margin-bottom:4px}
.tag-removable{padding-right:4px}
.tag-remove{cursor:pointer;opacity:0.7;transition:opacity 0.2s}
.tag-remove:hover{opacity:1}
.tag-selector{position:relative}
.tag-dropdown{position:absolute;top:100%;left:0;right:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);z-index:10;max-height:200px;overflow-y:auto}
.tag-option{padding:8px 12px;cursor:pointer;transition:background 0.2s}
.tag-option:hover{background:var(--surface-hover)}

/* Priority badges */
.priority{display:inline-flex;align-items:center;gap:4px;padding:4px 8px;border-radius:var(--radius);font-size:12px;font-weight:500}
.priority.low{background:#dcfce7;color:#166534}
.priority.normal{background:#dbeafe;color:#1e40af}
.priority.high{background:#fef3c7;color:#92400e}
.priority.critical{background:#fee2e2;color:#991b1b}

/* Notifications */
.notifications-dropdown{position:relative}
.notifications-menu{position:absolute;top:100%;right:0;width:400px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);z-index:1000;max-height:500px;overflow-y:auto}
.notification-item{padding:12px 16px;border-bottom:1px solid var(--border);cursor:pointer;transition:background 0.2s}
.notification-item:hover{background:var(--surface-hover)}
.notification-item.unread{background:#f0f9ff}
.notification-title{font-weight:600;margin-bottom:4px}
.notification-message{font-size:14px;color:var(--muted);margin-bottom:4px}
.notification-time{font-size:12px;color:var(--muted)}
.notification-badge{position:absolute;top:-5px;right:-5px;background:var(--error);color:white;border-radius:50%;width:18px;height:18px;font-size:11px;display:flex;align-items:center;justify-content:center;font-weight:600}

/* Search and filters */
.search-filters{background:var(--surface);padding:20px;border-radius:var(--radius-lg);box-shadow:var(--shadow);margin-bottom:24px}
.filter-row{display:flex;gap:16px;align-items:end;flex-wrap:wrap}
.filter-group{flex:1;min-width:200px}
.filter-label{display:block;margin-bottom:6px;font-weight:600;font-size:14px}
.filter-input{width:100%;padding:8px 12px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px}

/* Task details */
.task-details h3{margin-bottom:16px;color:var(--text)}
.task-meta{margin-bottom:16px;padding:12px;background:var(--surface-hover);border-radius:var(--radius)}
.task-meta p{margin:4px 0;font-size:14px}
.task-description{margin-bottom:16px;line-height:1.6}

/* Task tabs */
.task-tabs{display:flex;border-bottom:1px solid var(--border);margin-bottom:20px}
.tab-button{background:none;border:none;padding:12px 20px;cursor:pointer;color:var(--muted);font-weight:500;border-bottom:2px solid transparent;transition:all 0.2s}
.tab-button:hover{color:var(--text);background:var(--surface-hover)}
.tab-button.active{color:var(--primary);border-bottom-color:var(--primary)}
.tab-content{display:none}
.tab-content.active{display:block}

/* Time tracking */
.time-summary{background:var(--surface-hover);padding:16px;border-radius:var(--radius);margin-bottom:20px}
.time-summary p{margin:4px 0;font-size:14px}
.add-time-form{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:20px}
.add-time-form h4{margin:0 0 16px 0;color:var(--text)}
.time-logs h4{margin:0 0 16px 0;color:var(--text)}
.time-logs-list{max-height:300px;overflow-y:auto}
.time-log-item{background:var(--surface-hover);border:1px solid var(--border);border-radius:var(--radius);padding:12px;margin-bottom:8px}
.time-log-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}
.time-log-date{font-weight:600;color:var(--text)}
.time-log-duration{color:var(--primary);font-weight:600}
.time-log-user{font-size:12px;color:var(--muted);margin-bottom:4px}
.time-log-description{font-size:14px;color:var(--text);line-height:1.4}

/* Task history */
.history-list{max-height:400px;overflow-y:auto}
.history-item{background:var(--surface-hover);border:1px solid var(--border);border-radius:var(--radius);padding:12px;margin-bottom:8px}
.history-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:4px}
.history-action{font-weight:600;color:var(--text)}
.history-date{font-size:12px;color:var(--muted)}
.history-user{font-size:12px;color:var(--muted);margin-bottom:4px}
.history-field{font-size:14px;color:var(--text);line-height:1.4}

/* Tags management */
.tags-management{max-height:500px;overflow-y:auto}
.add-tag-form{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:20px}
.add-tag-form h4{margin:0 0 12px 0;color:var(--text)}
.task-tags h4{margin:0 0 12px 0;color:var(--text)}
.tag-item{display:flex;justify-content:space-between;align-items:center;padding:8px 12px;background:var(--surface-hover);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:8px}
.tag{display:inline-flex;align-items:center;padding:4px 8px;border-radius:var(--radius);font-size:12px;font-weight:500;color:white}
.tag-item .tag{margin:0}

/* Live timer */
.live-timer{font-family:monospace;font-weight:600;color:var(--primary)}
.timer-running{animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:0.7}}

/* Footer */
.site-footer{text-align:center;padding:24px;color:var(--muted);border-top:1px solid var(--border);margin-top:48px}

/* Responsive */
@media (max-width:768px){
    .board{grid-template-columns:1fr}
    .boards-grid{grid-template-columns:1fr}
    .form-row{flex-direction:column}
    .task-actions{flex-wrap:wrap}
    .modal-content{width:95%;margin:10px}
    .notifications-menu{width:300px}
    .filter-row{flex-direction:column}
    .filter-group{min-width:auto}
    
    /* Auth form responsive */
    .auth-card {
        max-width: 90%;
        margin: 40px auto;
        padding: 20px;
    }
    
    .auth-card h1 {
        font-size: 24px;
        margin-bottom: 20px;
    }
    
    .auth-card form {
        gap: 16px;
    }
}