/* ===== Painel Evolution — tema escuro ===== */
:root {
    --bg: #0d1418;
    --bg-card: #16222a;
    --bg-input: #0f1a20;
    --border: #24343e;
    --text: #e7eef2;
    --text-dim: #8aa0ad;
    --green: #25d366;
    --green-dark: #128c7e;
    --red: #ef5350;
    --yellow: #ffb74d;
    --radius: 12px;
}

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

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

code { color: var(--green); font-size: .85em; }

/* ===== Topbar ===== */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 50;
    flex-wrap: wrap;
    gap: 10px;
}

.topbar-brand { display: flex; align-items: center; gap: 12px; }
.topbar-brand small { display: block; color: var(--text-dim); font-size: 12px; }
.topbar-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.logo-icon { font-size: 28px; }

/* ===== Botões ===== */
.btn {
    border: none;
    border-radius: 8px;
    padding: 9px 16px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: filter .15s, transform .05s;
    color: var(--text);
    background: var(--border);
}
.btn:hover { filter: brightness(1.15); }
.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.btn-primary { background: var(--green-dark); color: #fff; }
.btn-ghost { background: transparent; border: 1px solid var(--border); }
.btn-danger { background: #5a2a2a; color: #ffb3b3; }
.btn-sm { padding: 6px 10px; font-size: 12.5px; }
.btn-block { width: 100%; justify-content: center; }

/* ===== Container / stats ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 24px; }

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-value { font-size: 30px; font-weight: 700; }
.stat-label { color: var(--text-dim); font-size: 13px; }
.stat-green .stat-value { color: var(--green); }
.stat-red .stat-value { color: var(--red); }

/* ===== Grid de instâncias ===== */
.instances-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 16px;
}

.instance-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.instance-head { display: flex; align-items: center; gap: 12px; }

.instance-avatar {
    width: 46px; height: 46px;
    border-radius: 50%;
    background: var(--bg-input);
    display: flex; align-items: center; justify-content: center;
    font-size: 22px;
    overflow: hidden;
    flex-shrink: 0;
}
.instance-avatar img { width: 100%; height: 100%; object-fit: cover; }

.instance-title { flex: 1; min-width: 0; }
.instance-title h3 { font-size: 16px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.instance-title small { color: var(--text-dim); font-size: 12px; display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .4px;
    flex-shrink: 0;
}
.badge-open { background: rgba(37, 211, 102, .15); color: var(--green); }
.badge-close { background: rgba(239, 83, 80, .15); color: var(--red); }
.badge-connecting { background: rgba(255, 183, 77, .15); color: var(--yellow); }

.instance-meta {
    display: flex;
    gap: 14px;
    color: var(--text-dim);
    font-size: 12.5px;
    flex-wrap: wrap;
}

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

.empty-state, .loading {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--text-dim);
    padding: 60px 20px;
    font-size: 15px;
}

/* ===== Formulários ===== */
label { display: block; font-size: 13px; color: var(--text-dim); margin: 14px 0 6px; font-weight: 600; }

input[type=text], input[type=password], textarea, select {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 12px;
    color: var(--text);
    font-size: 14px;
    font-family: inherit;
}
input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--green-dark);
}

.checkbox-line { display: flex; align-items: center; gap: 8px; margin: 8px 0; font-weight: 400; color: var(--text); cursor: pointer; }
.checkbox-line input { width: auto; }
.checkbox-group { background: var(--bg-input); border: 1px solid var(--border); border-radius: 8px; padding: 8px 12px; }

/* ===== Tabs ===== */
.tabs { display: flex; gap: 4px; margin-top: 16px; border-bottom: 1px solid var(--border); }
.tab {
    background: none; border: none;
    color: var(--text-dim);
    padding: 8px 16px;
    font-size: 14px; font-weight: 600;
    cursor: pointer;
    border-bottom: 2px solid transparent;
}
.tab.active { color: var(--green); border-bottom-color: var(--green); }

/* ===== Construtores (botões / lista) ===== */
.builder-row {
    display: flex;
    gap: 6px;
    margin-bottom: 8px;
    align-items: center;
}
.builder-row select { flex: 0 0 130px; }
.builder-row input { flex: 1; min-width: 0; }
.builder-row .btn-danger { flex-shrink: 0; padding: 8px 11px; }
#btns-add, #list-add { margin-top: 4px; }

/* ===== Modais ===== */
.modal-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .65);
    z-index: 100;
    align-items: flex-start;
    justify-content: center;
    padding: 40px 16px;
    overflow-y: auto;
}
.modal-backdrop.open { display: flex; }

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    width: 100%;
    max-width: 480px;
    animation: modalIn .18s ease;
}
@keyframes modalIn { from { opacity: 0; transform: translateY(-12px); } to { opacity: 1; transform: none; } }

.modal-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}
.modal-header h2 { font-size: 17px; }
.modal-close {
    background: none; border: none;
    color: var(--text-dim);
    font-size: 26px; line-height: 1;
    cursor: pointer;
}
.modal-body { padding: 6px 20px 20px; }
.modal-center { text-align: center; padding-top: 20px; }
.modal-footer {
    display: flex; justify-content: flex-end; gap: 8px;
    padding: 14px 20px;
    border-top: 1px solid var(--border);
}

#qr-area img {
    width: 260px; height: 260px;
    border-radius: 12px;
    background: #fff;
    padding: 10px;
}
#qr-area .qr-status { margin-top: 12px; font-size: 14px; }
.hint { color: var(--text-dim); font-size: 12.5px; margin-top: 14px; }

.qr-connected { font-size: 48px; }

/* ===== Alertas / toast ===== */
.alert { padding: 10px 14px; border-radius: 8px; font-size: 13.5px; margin: 12px 0; }
.alert-error { background: rgba(239, 83, 80, .12); color: #ff8a80; border: 1px solid rgba(239, 83, 80, .3); }
.alert-success { background: rgba(37, 211, 102, .12); color: var(--green); border: 1px solid rgba(37, 211, 102, .3); }

#toast-area {
    position: fixed;
    bottom: 20px; right: 20px;
    z-index: 200;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.toast {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-left: 4px solid var(--green);
    border-radius: 8px;
    padding: 12px 18px;
    font-size: 14px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, .4);
    animation: modalIn .2s ease;
    max-width: 340px;
}
.toast.toast-error { border-left-color: var(--red); }

/* ===== Login ===== */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: radial-gradient(circle at 30% 20%, #14252e 0%, var(--bg) 60%);
    padding: 16px;
}
.login-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 36px 32px;
    width: 100%;
    max-width: 400px;
}
.login-logo { text-align: center; margin-bottom: 10px; }
.login-logo .logo-icon { font-size: 44px; }
.login-logo h1 { font-size: 22px; margin-top: 8px; }
.login-logo p { color: var(--text-dim); font-size: 13px; margin-top: 4px; }
.login-box button { margin-top: 18px; }
.login-hint { text-align: center; margin-top: 18px; color: var(--text-dim); font-size: 12px; }

@media (max-width: 600px) {
    .container { padding: 16px; }
    .topbar { padding: 12px 16px; }
}