/* =============================================================================
   AI Asistent Davida – Task Board Styles
   ============================================================================= */

:root {
    --bg-primary: #0f0f23;
    --bg-secondary: #1a1a3e;
    --bg-card: #1e1e48;
    --bg-hover: #2a2a5e;
    --bg-input: #16163a;
    --text-primary: #e8e8ff;
    --text-secondary: #9999cc;
    --text-muted: #6666aa;
    --accent: #6c5ce7;
    --accent-glow: rgba(108, 92, 231, 0.3);
    --success: #00cec9;
    --warning: #fdcb6e;
    --danger: #ff7675;
    --info: #74b9ff;
    --border: rgba(108, 92, 231, 0.2);
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
    --transition: 0.2s ease;
}

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

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
}

/* Top Bar */
.top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 24px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 16px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-links a:hover, .nav-links a.active {
    color: var(--text-primary);
    background: var(--accent-glow);
}

/* Board Layout */
.board-layout {
    display: grid;
    grid-template-columns: 280px 1fr 300px;
    height: calc(100vh - 52px);
    gap: 0;
}

/* Panels */
.task-list-panel, .chat-panel {
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat-panel {
    border-right: none;
    border-left: 1px solid var(--border);
}

.task-detail-panel {
    overflow-y: auto;
    padding: 24px;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    border-bottom: 1px solid var(--border);
}

.panel-header h2 {
    font-size: 16px;
    font-weight: 600;
}

/* Filters */
.filters {
    padding: 8px 16px;
    border-bottom: 1px solid var(--border);
}

.filters select {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
}

/* Task Cards */
.task-cards {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}

.task-card {
    padding: 12px;
    margin-bottom: 6px;
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
}

.task-card:hover {
    background: var(--bg-hover);
    border-color: var(--accent);
    transform: translateX(2px);
}

.task-card.active {
    border-color: var(--accent);
    background: var(--bg-hover);
    box-shadow: 0 0 12px var(--accent-glow);
}

.task-card-title {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.task-card-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
}

.progress-bar {
    flex: 1;
    height: 4px;
    background: var(--bg-input);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--success));
    border-radius: 2px;
    transition: width 0.5s ease;
}

/* Status Badge */
.status-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-draft { background: rgba(116, 185, 255, 0.15); color: var(--info); }
.status-clarifying { background: rgba(116, 185, 255, 0.15); color: var(--info); }
.status-plan_review { background: rgba(253, 203, 110, 0.15); color: var(--warning); }
.status-active { background: rgba(0, 206, 201, 0.15); color: var(--success); }
.status-step_executing { background: rgba(108, 92, 231, 0.15); color: var(--accent); }
.status-step_waiting { background: rgba(253, 203, 110, 0.15); color: var(--warning); }
.status-completed { background: rgba(0, 206, 201, 0.15); color: var(--success); }
.status-cancelled { background: rgba(255, 118, 117, 0.15); color: var(--danger); }

.priority-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    margin-left: 6px;
}

.priority-critical { background: rgba(255, 118, 117, 0.2); color: var(--danger); }
.priority-high { background: rgba(253, 203, 110, 0.2); color: var(--warning); }
.priority-normal { background: rgba(153, 153, 204, 0.15); color: var(--text-secondary); }

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--text-muted);
    text-align: center;
}

.empty-state.small {
    padding: 30px 10px;
    font-size: 13px;
}

.empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

/* Detail */
.detail-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}

.detail-header h1 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
}

.detail-desc {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 24px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.detail-actions {
    display: flex;
    gap: 8px;
}

/* Plan Summary */
.plan-summary {
    margin-bottom: 24px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.plan-summary h3 {
    margin-bottom: 12px;
    font-size: 15px;
}

.plan-summary pre {
    font-family: 'Inter', sans-serif;
    font-size: 13px;
    line-height: 1.7;
    color: var(--text-secondary);
    white-space: pre-wrap;
}

/* Steps */
.steps-section h3 {
    font-size: 15px;
    margin-bottom: 12px;
}

.step-card {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px;
    margin-bottom: 8px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.step-card:hover {
    border-color: var(--accent);
}

.step-number {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
    background: var(--bg-input);
    color: var(--text-secondary);
}

.step-number.completed { background: var(--success); color: #fff; }
.step-number.executing { background: var(--accent); color: #fff; animation: pulse 1.5s infinite; }
.step-number.waiting { background: var(--warning); color: #1a1a3e; }
.step-number.failed { background: var(--danger); color: #fff; }

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 0 0 var(--accent-glow); }
    50% { box-shadow: 0 0 12px 4px var(--accent-glow); }
}

.step-info {
    flex: 1;
}

.step-desc {
    font-size: 13px;
    margin-bottom: 4px;
}

.step-meta {
    font-size: 11px;
    color: var(--text-muted);
}

.step-actions {
    display: flex;
    gap: 6px;
}

/* Chat */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
}

.chat-msg {
    margin-bottom: 10px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    line-height: 1.5;
    max-width: 95%;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

.chat-msg.user { background: var(--accent); color: #fff; margin-left: auto; }
.chat-msg.agent { background: var(--bg-card); }
.chat-msg.system { background: transparent; color: var(--text-muted); font-size: 12px; text-align: center; }
.chat-msg.external { background: rgba(0, 206, 201, 0.1); border: 1px solid rgba(0, 206, 201, 0.2); }

.chat-msg-role {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
    opacity: 0.7;
}

.chat-msg-time {
    font-size: 10px;
    opacity: 0.5;
    margin-top: 4px;
    text-align: right;
}

.chat-input {
    display: flex;
    gap: 8px;
    padding: 12px;
    border-top: 1px solid var(--border);
}

.chat-input input {
    flex: 1;
    padding: 10px 14px;
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-family: inherit;
}

.chat-input input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
}

/* Buttons */
.btn {
    padding: 8px 16px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    background: var(--bg-card);
    color: var(--text-primary);
}

.btn:hover { opacity: 0.85; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #fff; }
.btn-success { background: var(--success); color: #0f0f23; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-sm { padding: 4px 10px; font-size: 11px; }

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    width: 90%;
    max-width: 520px;
    box-shadow: var(--shadow);
}

.modal h2 {
    margin-bottom: 16px;
    font-size: 18px;
}

.modal textarea {
    width: 100%;
    padding: 14px;
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    resize: vertical;
    line-height: 1.6;
}

.modal textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 16px;
}

/* Loading */
.loading {
    text-align: center;
    padding: 30px;
    color: var(--text-muted);
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* Responsive */
@media (max-width: 1024px) {
    .board-layout { grid-template-columns: 240px 1fr; }
    .chat-panel { display: none; }
}

@media (max-width: 640px) {
    .board-layout { grid-template-columns: 1fr; }
    .task-list-panel { max-height: 40vh; }
}