:root {
    --bg: #f4f7fb;
    --surface: #ffffff;
    --surface-soft: #eef4fa;
    --text: #172033;
    --muted: #667085;
    --primary: #123a63;
    --primary-strong: #0b2948;
    --border: #dce4ee;
    --success: #18794e;
    --success-bg: #e8f7ef;
    --warning: #9a6700;
    --warning-bg: #fff4d6;
    --danger: #b42318;
    --danger-bg: #fdecec;
    --info: #175cd3;
    --info-bg: #eaf2ff;
    --shadow: 0 10px 30px rgba(18, 58, 99, .08);
    --radius: 16px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--text);
    font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    line-height: 1.5;
}
button, input, select, textarea { font: inherit; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.topbar {
    position: sticky;
    top: 0;
    z-index: 30;
    min-height: 68px;
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 10px max(18px, calc((100vw - 1240px) / 2));
    padding-left: max(18px, env(safe-area-inset-left));
    padding-right: max(18px, env(safe-area-inset-right));
    background: rgba(255,255,255,.96);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(10px);
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; white-space: nowrap; }
.brand-mark, .auth-logo {
    display: grid;
    place-items: center;
    color: #fff;
    background: var(--primary);
    border-radius: 12px;
    font-weight: 900;
}
.brand-mark { width: 38px; height: 38px; }
.auth-logo { width: 64px; height: 64px; margin: 0 auto 14px; font-size: 30px; border-radius: 18px; }
.nav { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.nav a { padding: 10px 13px; border-radius: 10px; color: var(--muted); font-weight: 650; }
.nav a:hover, .nav a.active { color: var(--primary); background: var(--surface-soft); }
.menu-button { display: none; margin-left: auto; border: 0; background: var(--surface-soft); color: var(--primary); width: 42px; height: 42px; border-radius: 10px; font-size: 22px; }

.container { width: min(1240px, calc(100% - 32px)); margin: 0 auto; padding: 28px 0 48px; }
.auth-container { min-height: 100vh; display: grid; place-items: center; padding: 24px 0; }
.auth-card {
    width: min(440px, 100%);
    padding: 30px;
    border-radius: 22px;
    background: var(--surface);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    text-align: center;
}
.install-card { width: min(720px, 100%); text-align: left; }
.install-card .auth-logo, .install-card h1, .install-card > p { text-align: center; }

h1, h2, h3, p { margin-top: 0; }
h1 { margin-bottom: 5px; font-size: clamp(1.6rem, 4vw, 2.2rem); line-height: 1.15; }
h2 { margin-bottom: 6px; font-size: 1.22rem; }
h3 { margin-bottom: 5px; }
.muted { color: var(--muted); }
.pre-line { white-space: pre-line; }
.danger-text { color: var(--danger); }

.page-heading {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 18px;
    margin-bottom: 22px;
}
.actions, .form-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.form-actions { justify-content: flex-end; padding-top: 6px; }
.inline-badges, .debt-topline { display: flex; gap: 7px; flex-wrap: wrap; margin-bottom: 8px; }

.button {
    appearance: none;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--primary);
    min-height: 42px;
    padding: 9px 15px;
    border-radius: 11px;
    font-weight: 750;
    cursor: pointer;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 7px;
    transition: transform .12s ease, background .12s ease;
}
.button:hover { transform: translateY(-1px); }
.button.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.button.primary:hover { background: var(--primary-strong); }
.button.secondary { background: var(--surface-soft); border-color: #cbd9e7; }
.button.ghost { background: transparent; }
.button.small { min-height: 34px; padding: 6px 10px; font-size: .88rem; }
.button.full { width: 100%; }
.text-link { color: var(--primary); font-weight: 750; }

.alert { margin-bottom: 18px; padding: 13px 15px; border-radius: 12px; border: 1px solid transparent; }
.alert.success { color: var(--success); background: var(--success-bg); border-color: #b7e4cb; }
.alert.error { color: var(--danger); background: var(--danger-bg); border-color: #f3c2be; }

.install-banner {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 18px;
    padding: 13px 15px;
    border-radius: 13px;
    background: var(--info-bg);
    border: 1px solid #c7dafc;
    color: #123b72;
}
.install-banner span { flex: 1; }
.install-banner .close-install { border: 0; background: transparent; font-size: 22px; cursor: pointer; color: inherit; }

.stats-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; margin-bottom: 20px; }
.stat-card, .panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}
.stat-card { padding: 18px; min-width: 0; }
.stat-card span, .stat-card small { display: block; color: var(--muted); }
.stat-card strong { display: block; margin: 7px 0 2px; font-size: clamp(1.25rem, 2.2vw, 1.7rem); overflow-wrap: anywhere; }
.danger-card strong { color: var(--danger); }
.panel { padding: 20px; margin-bottom: 18px; }
.compact-panel { padding: 18px 20px; }
.panel-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 14px; }
.empty-state { padding: 36px 18px; text-align: center; color: var(--muted); border: 1px dashed var(--border); border-radius: 13px; }

.responsive-table { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 760px; }
th, td { padding: 13px 11px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
th { color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; }
tbody tr:last-child td { border-bottom: 0; }
.table-action { text-align: right; }
.table-note { display: block; color: var(--danger); margin-top: 2px; }

.badge { display: inline-flex; align-items: center; width: fit-content; padding: 4px 8px; border-radius: 999px; font-size: .76rem; font-weight: 800; white-space: nowrap; }
.badge.success { color: var(--success); background: var(--success-bg); }
.badge.warning { color: var(--warning); background: var(--warning-bg); }
.badge.danger { color: var(--danger); background: var(--danger-bg); }
.badge.info { color: var(--info); background: var(--info-bg); }

.form-panel { max-width: 860px; margin-left: auto; margin-right: auto; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.stack-form { display: grid; gap: 15px; text-align: left; margin-top: 22px; }
.field { display: flex; flex-direction: column; gap: 7px; min-width: 0; }
.field label { font-weight: 750; font-size: .91rem; }
.field small { color: var(--muted); }
.field input, .field select, .field textarea, .search-bar input {
    width: 100%;
    min-height: 46px;
    padding: 10px 12px;
    border: 1px solid #cbd5e1;
    border-radius: 11px;
    background: #fff;
    color: var(--text);
    outline: none;
}
.field textarea { min-height: 96px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus, .search-bar input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(18,58,99,.12); }
.span-2 { grid-column: span 2; }
.section-title { padding-top: 8px; font-weight: 850; color: var(--primary); border-bottom: 1px solid var(--border); padding-bottom: 8px; }
.photo-input-row { display: flex; align-items: center; gap: 16px; }
.photo-input-row input { flex: 1; }

.avatar { width: 58px; height: 58px; flex: 0 0 auto; display: grid; place-items: center; border-radius: 50%; background: var(--surface-soft); color: var(--primary); font-size: 1.25rem; font-weight: 900; overflow: hidden; border: 1px solid var(--border); }
.avatar.large { width: 82px; height: 82px; font-size: 1.5rem; }
.avatar img { width: 100%; height: 100%; object-fit: cover; }

.search-bar { display: flex; gap: 10px; margin-bottom: 18px; }
.search-bar input { flex: 1; }
.client-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.client-card { display: grid; grid-template-columns: auto 1fr; gap: 14px; padding: 17px; border: 1px solid var(--border); border-radius: 14px; background: #fff; }
.client-content p { margin-bottom: 2px; color: var(--muted); }
.client-summary { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-top: 10px; font-size: .88rem; }
.client-actions { grid-column: 1 / -1; display: flex; justify-content: flex-end; gap: 8px; }

.debt-list { display: grid; gap: 12px; }
.debt-card { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(220px, .8fr) auto; gap: 18px; align-items: center; padding: 17px; border: 1px solid var(--border); border-radius: 14px; }
.debt-main p { margin-bottom: 2px; }
.debt-values { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 10px; }
.debt-values div, .debt-summary-card div, .payment-summary div { padding: 11px; border-radius: 11px; background: var(--surface-soft); }
.debt-values span, .debt-summary-card span, .payment-summary span { display: block; color: var(--muted); font-size: .82rem; }
.debt-values strong, .debt-summary-card strong, .payment-summary strong { display: block; margin-top: 3px; }

.calculation-box { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; padding: 14px; border-radius: 13px; background: var(--surface-soft); border: 1px solid var(--border); }
.calculation-box div { min-width: 0; }
.calculation-box span { display: block; color: var(--muted); font-size: .78rem; }
.calculation-box strong { display: block; margin-top: 4px; overflow-wrap: anywhere; }

.detail-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 18px; }
.client-detail-card { display: flex; align-items: center; gap: 16px; }
.client-detail-card p { margin-bottom: 2px; color: var(--muted); }
.debt-summary-card { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 10px; }
.payment-panel { max-width: 760px; margin-left: auto; margin-right: auto; }
.payment-summary { display: grid; grid-template-columns: repeat(5, minmax(0,1fr)); gap: 10px; margin-bottom: 20px; }
.payment-summary .highlight { background: var(--info-bg); color: var(--info); }
.narrow-form { max-width: 560px; margin: 0 auto; }

@media (max-width: 1050px) {
    .stats-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .calculation-box { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .payment-summary { grid-template-columns: repeat(3, minmax(0,1fr)); }
}

@media (max-width: 800px) {
    .topbar { padding: 10px 16px; }
    .menu-button { display: block; }
    .nav {
        display: none;
        position: absolute;
        top: calc(100% + 1px);
        left: 12px;
        right: 12px;
        flex-direction: column;
        align-items: stretch;
        padding: 10px;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: 0 0 14px 14px;
        box-shadow: var(--shadow);
    }
    .nav.open { display: flex; }
    .nav a { width: 100%; }
    .container { width: min(100% - 22px, 1240px); padding-top: 20px; }
    .page-heading { flex-direction: column; }
    .page-heading > .button, .page-heading .actions { width: 100%; }
    .page-heading .actions .button { flex: 1; }
    .stats-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .client-grid { grid-template-columns: 1fr; }
    .debt-card { grid-template-columns: 1fr; }
    .debt-values { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .debt-card > .button { width: 100%; }
    .detail-grid { grid-template-columns: 1fr; }
    .debt-summary-card { grid-template-columns: repeat(2, minmax(0,1fr)); }

    .responsive-table { overflow: visible; }
    .responsive-table table, .responsive-table thead, .responsive-table tbody, .responsive-table tr, .responsive-table td { display: block; width: 100%; min-width: 0; }
    .responsive-table thead { display: none; }
    .responsive-table tbody { display: grid; gap: 12px; }
    .responsive-table tr { padding: 10px 13px; border: 1px solid var(--border); border-radius: 13px; background: #fff; }
    .responsive-table td { display: grid; grid-template-columns: minmax(95px, .45fr) 1fr; gap: 12px; padding: 7px 0; border-bottom: 1px dashed var(--border); text-align: right; }
    .responsive-table td:last-child { border-bottom: 0; }
    .responsive-table td::before { content: attr(data-label); color: var(--muted); font-size: .78rem; font-weight: 750; text-transform: uppercase; text-align: left; }
    .responsive-table .table-action { display: flex; justify-content: flex-end; }
    .responsive-table .table-action::before { display: none; }
    .responsive-table .badge { margin-left: auto; }
}

@media (max-width: 560px) {
    .brand span:last-child { max-width: 190px; overflow: hidden; text-overflow: ellipsis; }
    .panel { padding: 15px; border-radius: 14px; }
    .auth-card { padding: 22px 18px; }
    .stats-grid { grid-template-columns: 1fr; }
    .form-grid { grid-template-columns: 1fr; gap: 14px; }
    .span-2 { grid-column: span 1; }
    .search-bar { display: grid; grid-template-columns: 1fr 1fr; }
    .search-bar input { grid-column: 1 / -1; }
    .client-card { grid-template-columns: auto 1fr; }
    .calculation-box, .debt-summary-card, .payment-summary, .debt-values { grid-template-columns: 1fr; }
    .client-detail-card { align-items: flex-start; }
    .form-actions { flex-direction: column-reverse; }
    .form-actions .button { width: 100%; }
    .photo-input-row { align-items: flex-start; flex-direction: column; }
    .install-banner { align-items: flex-start; flex-wrap: wrap; }
}

/* Versão 2: superadministrador e renovações */
.user-strip {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 8px;
    margin: -10px 0 14px;
    color: var(--muted);
    font-size: .86rem;
}
.button.danger-button {
    color: var(--danger);
    background: var(--danger-bg);
    border-color: #f3c2be;
}
.admin-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.admin-card { padding: 18px; border: 1px solid var(--border); border-radius: 14px; background: #fff; }
.admin-card-head { display: flex; justify-content: space-between; gap: 14px; align-items: flex-start; }
.admin-card-head p { margin-bottom: 0; }
.admin-metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 9px; margin: 15px 0; }
.admin-metrics div { padding: 10px; border-radius: 10px; background: var(--surface-soft); }
.admin-metrics span { display: block; color: var(--muted); font-size: .76rem; }
.admin-metrics strong { display: block; margin-top: 3px; overflow-wrap: anywhere; }
.admin-actions { display: flex; justify-content: flex-end; align-items: center; gap: 9px; flex-wrap: wrap; }
.admin-actions form { margin: 0; }
.checkbox-field label { display: flex; align-items: center; gap: 9px; width: fit-content; }
.checkbox-field input { width: 20px; min-height: 20px; }
.renewal-info { border-color: #c7dafc; background: var(--info-bg); }
.renewal-info p { margin-bottom: 0; }
.update-log { margin: 16px 0; padding: 14px; background: var(--surface-soft); border-radius: 12px; }
.update-log p { margin-bottom: 6px; }
.update-log p:last-child { margin-bottom: 0; }
.field input[readonly] { background: var(--surface-soft); color: var(--primary); font-weight: 800; }

@media (max-width: 800px) {
    .admin-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
    .user-strip { justify-content: flex-start; margin-top: -4px; }
    .admin-card-head { flex-direction: column; }
    .admin-metrics { grid-template-columns: 1fr; }
    .admin-actions, .admin-actions form, .admin-actions .button { width: 100%; }
}