/* ============================================================
   ORÁCULO — Tema Matrix (ECHOTECH S/A I.A)
   Preto #000000 | Verde Matrix #00ff41 | Verde Escuro #003b00
   ============================================================ */

:root {
    --matrix-green: #00ff41;
    --matrix-dark: #003b00;
    --matrix-dim: #008f11;
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-card: #0d1117;
    --border-color: #003b00;
    --text-primary: #00ff41;
    --text-secondary: #008f11;
    --text-dim: #003b00;
    --danger: #ff0040;
    --warning: #ffaa00;
    --success: #00ff41;
}

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

body {
    font-family: 'Courier New', Courier, monospace;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow: hidden;
    height: 100vh;
    width: 100vw;
}

/* MATRIX BACKGROUND CANVAS */
#matrix-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    opacity: 0.15;
    pointer-events: none;
}

/* SCREENS */
.screen {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10;
}

.screen.active {
    display: flex;
}

/* LOGIN SCREEN */
#login-screen {
    align-items: center;
    justify-content: center;
    background: radial-gradient(ellipse at center, rgba(0,30,0,0.9) 0%, rgba(0,0,0,0.98) 100%);
}

.login-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 50px 60px;
    min-width: 420px;
    box-shadow: 0 0 40px rgba(0, 255, 65, 0.1), inset 0 0 40px rgba(0, 255, 65, 0.02);
    position: relative;
    z-index: 11;
}

.login-container::before {
    content: '';
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--matrix-green), transparent);
}

.logo {
    text-align: center;
    margin-bottom: 40px;
}

.logo h1 {
    font-size: 2.8rem;
    letter-spacing: 8px;
    color: var(--matrix-green);
    text-shadow: 0 0 20px rgba(0, 255, 65, 0.5);
    margin-bottom: 8px;
}

.logo .subtitle {
    font-size: 0.75rem;
    color: var(--text-secondary);
    letter-spacing: 3px;
}

.input-group {
    margin-bottom: 24px;
}

.input-group label {
    display: block;
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    letter-spacing: 2px;
}

.input-group input {
    width: 100%;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 2px;
    padding: 12px 16px;
    color: var(--matrix-green);
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: all 0.3s;
}

.input-group input:focus {
    border-color: var(--matrix-green);
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.2);
}

.btn-matrix {
    width: 100%;
    background: transparent;
    border: 1px solid var(--matrix-green);
    color: var(--matrix-green);
    padding: 14px;
    font-family: inherit;
    font-size: 0.85rem;
    letter-spacing: 3px;
    cursor: pointer;
    transition: all 0.3s;
    border-radius: 2px;
    margin-top: 10px;
}

.btn-matrix:hover {
    background: var(--matrix-green);
    color: var(--bg-primary);
    box-shadow: 0 0 20px rgba(0, 255, 65, 0.4);
}

.hint {
    text-align: center;
    margin-top: 16px;
    font-size: 0.7rem;
    color: var(--text-dim);
}

.error {
    text-align: center;
    margin-top: 12px;
    font-size: 0.8rem;
    color: var(--danger);
    min-height: 18px;
}

/* DASHBOARD LAYOUT */
#dashboard-screen {
    flex-direction: row;
}

/* SIDEBAR */
.sidebar {
    width: 240px;
    background: var(--bg-card);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 11;
}

.sidebar-logo {
    padding: 24px 20px;
    font-size: 1.2rem;
    font-weight: bold;
    letter-spacing: 3px;
    border-bottom: 1px solid var(--border-color);
    color: var(--matrix-green);
}

.blink {
    animation: blink 1.5s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.nav-menu {
    list-style: none;
    padding: 16px 0;
    flex: 1;
}

.nav-item {
    padding: 14px 20px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.85rem;
    letter-spacing: 1px;
    color: var(--text-secondary);
    border-left: 3px solid transparent;
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-item:hover {
    background: rgba(0, 255, 65, 0.05);
    color: var(--matrix-green);
}

.nav-item.active {
    background: rgba(0, 255, 65, 0.08);
    color: var(--matrix-green);
    border-left-color: var(--matrix-green);
}

.nav-icon {
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
}

.btn-small {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 14px;
    font-family: inherit;
    font-size: 0.7rem;
    cursor: pointer;
    border-radius: 2px;
    letter-spacing: 1px;
}

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

/* MAIN CONTENT */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg-primary);
    position: relative;
}

.main-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(rgba(0, 255, 65, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 65, 0.02) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 1;
}

/* TOPBAR */
.topbar {
    height: 56px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    z-index: 12;
}

.breadcrumb {
    font-size: 0.75rem;
    letter-spacing: 2px;
    color: var(--text-secondary);
}

.system-status {
    font-size: 0.75rem;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.status-dot.online {
    background: var(--success);
    box-shadow: 0 0 8px var(--success);
}

.status-dot.offline {
    background: var(--danger);
    box-shadow: 0 0 8px var(--danger);
}

.status-dot.degraded {
    background: var(--warning);
    box-shadow: 0 0 8px var(--warning);
}

/* PAGES */
.page {
    display: none;
    flex: 1;
    overflow-y: auto;
    padding: 28px;
    z-index: 11;
    position: relative;
}

.page.active {
    display: block;
}

/* SECTIONS */
.section {
    margin-bottom: 32px;
}

.section-title {
    font-size: 0.85rem;
    letter-spacing: 3px;
    color: var(--matrix-green);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

/* CARDS */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 32px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 24px;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--matrix-green);
    opacity: 0.5;
}

.metric-card {
    display: flex;
    align-items: center;
    gap: 16px;
}

.card-icon {
    font-size: 2rem;
    opacity: 0.7;
}

.card-value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--matrix-green);
    text-shadow: 0 0 10px rgba(0, 255, 65, 0.3);
}

.card-title {
    font-size: 0.7rem;
    color: var(--text-secondary);
    letter-spacing: 1px;
    margin-top: 4px;
}

.card-change {
    font-size: 0.75rem;
    margin-top: 4px;
}

.card-change.positive {
    color: var(--success);
}

/* AGENTS PREVIEW */
.agents-preview {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
}

.agent-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 20px;
    text-align: center;
    transition: all 0.3s;
    cursor: pointer;
}

.agent-card:hover {
    border-color: var(--matrix-dim);
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.1);
}

.agent-card.offline {
    opacity: 0.5;
    border-color: var(--text-dim);
}

.agent-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 2px solid var(--matrix-green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin: 0 auto 12px;
    box-shadow: 0 0 15px rgba(0, 255, 65, 0.2);
}

.agent-card.offline .agent-avatar {
    border-color: var(--text-dim);
    box-shadow: none;
}

.agent-name {
    font-size: 0.9rem;
    color: var(--matrix-green);
    margin-bottom: 4px;
}

.agent-role {
    font-size: 0.7rem;
    color: var(--text-secondary);
    letter-spacing: 1px;
}

.agent-status {
    font-size: 0.65rem;
    margin-top: 8px;
    letter-spacing: 1px;
}

/* AGENTS TABLE */
.agents-table-container {
    overflow-x: auto;
}

.agents-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.agents-table th {
    text-align: left;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-weight: normal;
    letter-spacing: 1px;
    font-size: 0.75rem;
}

.agents-table td {
    padding: 14px 16px;
    border-bottom: 1px solid rgba(0, 59, 0, 0.3);
}

.agents-table tr:hover td {
    background: rgba(0, 255, 65, 0.03);
}

.agent-cell {
    display: flex;
    align-items: center;
    gap: 12px;
}

.agent-cell-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 1px solid var(--matrix-green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
}

.toggle-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 14px;
    font-family: inherit;
    font-size: 0.7rem;
    cursor: pointer;
    border-radius: 2px;
    letter-spacing: 1px;
}

.toggle-btn:hover {
    border-color: var(--matrix-green);
    color: var(--matrix-green);
}

/* DIAGRAM */
.diagram-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 20px;
    overflow: auto;
}

.diagram-container svg {
    width: 100%;
    height: auto;
    min-height: 450px;
}

.node-rect {
    fill: var(--bg-primary);
    stroke: var(--matrix-green);
    stroke-width: 1.5;
    rx: 4;
}

.node-rect.offline {
    stroke: var(--danger);
}

.node-rect.degraded {
    stroke: var(--warning);
}

.node-text {
    fill: var(--matrix-green);
    font-family: 'Courier New', monospace;
    font-size: 11px;
    text-anchor: middle;
}

.node-text.offline {
    fill: var(--danger);
}

.edge-line {
    stroke: var(--matrix-dim);
    stroke-width: 1;
    opacity: 0.4;
    marker-end: url(#arrowhead);
}

.edge-label {
    fill: var(--text-secondary);
    font-family: 'Courier New', monospace;
    font-size: 9px;
    text-anchor: middle;
}

.diagram-legend {
    display: flex;
    gap: 24px;
    margin-top: 16px;
    justify-content: center;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 2px;
}

/* HEALTH GRID */
.health-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.health-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.health-card .status-dot {
    width: 12px;
    height: 12px;
}

.health-info {
    flex: 1;
}

.health-name {
    font-size: 0.85rem;
    color: var(--matrix-green);
    margin-bottom: 4px;
}

.health-url {
    font-size: 0.7rem;
    color: var(--text-dim);
    word-break: break-all;
}

/* CONVERSATIONS */
.conversations-list {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 20px;
    min-height: 300px;
}

.empty-state {
    text-align: center;
    color: var(--text-dim);
    padding: 40px;
    font-size: 0.85rem;
}

/* SCROLLBAR */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--matrix-dim);
}

/* RESPONSIVE */
@media (max-width: 1024px) {
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .health-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .sidebar {
        width: 60px;
    }
    .sidebar-logo {
        font-size: 0.7rem;
        padding: 16px 8px;
    }
    .nav-item {
        padding: 14px 8px;
        justify-content: center;
    }
    .nav-item span:not(.nav-icon) {
        display: none;
    }
    .cards-grid {
        grid-template-columns: 1fr;
    }
    .health-grid {
        grid-template-columns: 1fr;
    }
}