/* =====================================================
   Monitor de Energia — app.css
   ===================================================== */

/* ── Reset & Base ───────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --primary:       #6366f1;
    --primary-dark:  #4f46e5;
    --primary-light: #e0e7ff;
    --success:       #22c55e;
    --warning:       #f59e0b;
    --danger:        #ef4444;
    --info:          #06b6d4;

    --bg:            #0f172a;
    --bg-card:       #1e293b;
    --bg-card2:      #162032;
    --border:        #2d3f55;
    --text:          #e2e8f0;
    --text-muted:    #64748b;
    --text-light:    #94a3b8;

    --sidebar-w:     260px;
    --topbar-h:      64px;
    --radius:        12px;
    --radius-sm:     8px;
    --shadow:        0 4px 24px rgba(0,0,0,0.4);
    --transition:    0.2s ease;
}

html, body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    font-size: 15px;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.6;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

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

/* ── Sidebar ─────────────────────────────────────── */
.sidebar {
    width: var(--sidebar-w);
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 200;
    transition: transform var(--transition);
}

.sidebar-brand {
    padding: 20px 20px 16px;
    border-bottom: 1px solid var(--border);
}
.sidebar-brand a {
    display: block;
    text-decoration: none;
}
.sidebar-brand img {
    width: 100%;
    max-width: 160px;
    height: auto;
    display: block;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 14px;
    border-radius: var(--radius-sm);
    color: var(--text-light);
    font-size: 14px;
    font-weight: 500;
    transition: background var(--transition), color var(--transition);
}
.nav-item svg { width: 18px; height: 18px; flex-shrink: 0; }
.nav-item:hover { background: rgba(99,102,241,0.12); color: var(--text); }
.nav-item.active {
    background: linear-gradient(135deg, rgba(99,102,241,0.25), rgba(79,70,229,0.15));
    color: var(--primary);
    border: 1px solid rgba(99,102,241,0.3);
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-info { display: flex; align-items: center; gap: 10px; flex: 1; min-width: 0; }
.user-avatar {
    width: 36px; height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 14px; color: #fff;
    flex-shrink: 0;
}
.user-name { font-size: 13px; font-weight: 600; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { font-size: 11px; color: var(--text-muted); }

.btn-logout {
    width: 34px; height: 34px;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    transition: background var(--transition), color var(--transition);
    flex-shrink: 0;
}
.btn-logout svg { width: 18px; height: 18px; }
.btn-logout:hover { background: rgba(239,68,68,0.15); color: var(--danger); }

/* ── Main content ─────────────────────────────────── */
.main-content {
    margin-left: var(--sidebar-w);
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.topbar {
    height: var(--topbar-h);
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    padding: 0 24px;
    gap: 16px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.sidebar-toggle {
    background: none; border: none; cursor: pointer;
    color: var(--text-muted); display: none;
    padding: 6px; border-radius: 6px;
}
.sidebar-toggle svg { width: 22px; height: 22px; }
.sidebar-toggle:hover { background: var(--border); color: var(--text); }

.page-title { font-size: 18px; font-weight: 600; color: var(--text); }

.content-body {
    padding: 28px 28px;
    flex: 1;
}

/* ── Cards ─────────────────────────────────────────── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}
.card-header h3 { font-size: 15px; font-weight: 600; color: var(--text); }

/* ── Stats Grid ─────────────────────────────────────── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px 24px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    position: relative;
    overflow: hidden;
    transition: border-color var(--transition), transform var(--transition);
}
.stat-card:hover { border-color: var(--primary); transform: translateY(-2px); }

.stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--info));
}
.stat-card.success::before { background: linear-gradient(90deg, var(--success), #16a34a); }
.stat-card.warning::before { background: linear-gradient(90deg, var(--warning), #d97706); }
.stat-card.danger::before  { background: linear-gradient(90deg, var(--danger),  #dc2626); }
.stat-card.info::before    { background: linear-gradient(90deg, var(--info),    #0891b2); }

.stat-icon {
    width: 44px; height: 44px;
    border-radius: 10px;
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 4px;
}
.stat-icon svg { width: 22px; height: 22px; }

.stat-icon.primary { background: rgba(99,102,241,0.15); color: var(--primary); }
.stat-icon.success { background: rgba(34,197,94,0.15);  color: var(--success); }
.stat-icon.warning { background: rgba(245,158,11,0.15); color: var(--warning); }
.stat-icon.danger  { background: rgba(239,68,68,0.15);  color: var(--danger); }
.stat-icon.info    { background: rgba(6,182,212,0.15);  color: var(--info); }

.stat-label { font-size: 12px; font-weight: 500; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.stat-value { font-size: 28px; font-weight: 700; color: var(--text); line-height: 1.1; }
.stat-sub   { font-size: 12px; color: var(--text-muted); }

/* ── FP Badge ──────────────────────────────────────── */
.fp-badge {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 4px 12px;
    border-radius: 99px;
    font-size: 13px;
    font-weight: 600;
}
.fp-ok      { background: rgba(34,197,94,0.15);  color: var(--success); border: 1px solid rgba(34,197,94,0.3); }
.fp-warning { background: rgba(245,158,11,0.15); color: var(--warning); border: 1px solid rgba(245,158,11,0.3); }
.fp-danger  { background: rgba(239,68,68,0.15);  color: var(--danger);  border: 1px solid rgba(239,68,68,0.3); }

/* ── Charts Grid ──────────────────────────────────── */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
    gap: 24px;
    margin-bottom: 28px;
}

.chart-container { position: relative; height: 280px; }

/* ── Tables ───────────────────────────────────────── */
.table-responsive { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
thead th {
    text-align: left;
    padding: 12px 16px;
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
tbody td {
    padding: 14px 16px;
    border-bottom: 1px solid rgba(45,63,85,0.6);
    color: var(--text-light);
    vertical-align: middle;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: rgba(99,102,241,0.05); }

/* ── Badges ───────────────────────────────────────── */
.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 99px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.badge-success { background: rgba(34,197,94,0.15);  color: var(--success); }
.badge-danger  { background: rgba(239,68,68,0.15);  color: var(--danger); }
.badge-warning { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-info    { background: rgba(6,182,212,0.15);  color: var(--info); }
.badge-muted   { background: rgba(100,116,139,0.2); color: var(--text-muted); }

/* ── Forms ────────────────────────────────────────── */
.form-group { margin-bottom: 18px; }
.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-light);
    margin-bottom: 6px;
}
.form-control {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-size: 14px;
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}
.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99,102,241,0.2);
}
.form-control::placeholder { color: var(--text-muted); }

select.form-control { cursor: pointer; }

.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; }

/* ── Buttons ──────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
    white-space: nowrap;
    text-decoration: none;
}
.btn svg { width: 16px; height: 16px; }

.btn-primary  { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }

.btn-success  { background: var(--success); color: #fff; }
.btn-success:hover { background: #16a34a; color: #fff; }

.btn-danger   { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; color: #fff; }

.btn-outline  { background: transparent; border: 1px solid var(--border); color: var(--text-light); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: rgba(99,102,241,0.05); }

.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-block { width: 100%; justify-content: center; }

.btn-icon {
    width: 34px; height: 34px; padding: 0;
    justify-content: center;
    border-radius: var(--radius-sm);
}

/* ── Alerts ───────────────────────────────────────── */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    margin-bottom: 16px;
    border-left: 4px solid;
}
.alert-danger  { background: rgba(239,68,68,0.1);  border-color: var(--danger);  color: #fca5a5; }
.alert-success { background: rgba(34,197,94,0.1);  border-color: var(--success); color: #86efac; }
.alert-warning { background: rgba(245,158,11,0.1); border-color: var(--warning); color: #fde68a; }
.alert-info    { background: rgba(6,182,212,0.1);  border-color: var(--info);    color: #a5f3fc; }

/* ── Modal ────────────────────────────────────────── */
.modal-backdrop {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.7);
    z-index: 1000;
    display: flex; align-items: center; justify-content: center;
    padding: 20px;
    opacity: 0; pointer-events: none;
    transition: opacity var(--transition);
}
.modal-backdrop.open { opacity: 1; pointer-events: auto; }

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    width: 100%; max-width: 560px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow);
    transform: translateY(20px);
    transition: transform var(--transition);
}
.modal-backdrop.open .modal { transform: translateY(0); }

.modal-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}
.modal-header h3 { font-size: 16px; font-weight: 600; }
.modal-body { padding: 24px; }
.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border);
    display: flex; justify-content: flex-end; gap: 12px;
}

.btn-close {
    background: none; border: none; cursor: pointer;
    color: var(--text-muted); padding: 4px; border-radius: 4px;
}
.btn-close svg { width: 20px; height: 20px; }
.btn-close:hover { color: var(--text); background: var(--border); }

/* ── Token box ─────────────────────────────────────── */
.token-box {
    display: flex; align-items: center; gap: 8px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
}
.token-box code {
    flex: 1;
    font-family: 'Courier New', monospace;
    font-size: 12px;
    color: var(--primary);
    word-break: break-all;
}

/* ── Login page ─────────────────────────────────────── */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg);
    background-image: radial-gradient(ellipse at 20% 50%, rgba(99,102,241,0.08) 0%, transparent 50%),
                      radial-gradient(ellipse at 80% 20%, rgba(6,182,212,0.06) 0%, transparent 50%);
}

.login-wrapper {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow);
}

.login-logo {
    text-align: center;
    margin-bottom: 32px;
}
.login-logo svg {
    width: 52px; height: 52px;
    stroke: var(--primary);
    margin-bottom: 12px;
}
.login-logo h1 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 4px;
}
.login-logo p { font-size: 13px; color: var(--text-muted); }

/* ── Gauge / FP indicator ──────────────────────────── */
.fp-gauge-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

/* ── Pagination ────────────────────────────────────── */
.pagination {
    display: flex; align-items: center; gap: 4px;
    justify-content: flex-end;
    margin-top: 16px;
}
.page-btn {
    min-width: 34px; height: 34px;
    display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-muted);
    border: 1px solid var(--border);
    background: none;
    cursor: pointer;
    transition: all var(--transition);
}
.page-btn:hover, .page-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

/* ── Responsive ────────────────────────────────────── */
@media (max-width: 900px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    .main-content { margin-left: 0; }
    .sidebar-toggle { display: flex; }
    .charts-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
    .content-body { padding: 16px; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .login-card { padding: 28px 20px; }
}