:root {
    --bg: #f6f8fa;
    --panel: #ffffff;
    --ink: #10143b;
    --muted: #68717a;
    --line: #dfe5e8;
    --primary: #1d96c5;
    --primary-dark: #10143b;
    --accent: #64c2df;
    --steel: #9c9ea0;
    --danger: #b42318;
    --shadow: 0 10px 30px rgba(16, 20, 59, .08);
    --radius: 8px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: Arial, Helvetica, sans-serif;
    font-size: 15px;
}

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

input,
select,
textarea,
button {
    font: inherit;
}

.app-shell {
    display: grid;
    grid-template-columns: 250px 1fr;
    min-height: 100vh;
}

.sidebar {
    background:
        linear-gradient(180deg, rgba(29, 150, 197, .18) 0%, rgba(16, 20, 59, 0) 36%),
        #10143b;
    color: #fff;
    display: flex;
    flex-direction: column;
    padding: 20px;
    position: sticky;
    top: 0;
    height: 100vh;
}

.brand {
    border-bottom: 1px solid rgba(255, 255, 255, .12);
    display: grid;
    gap: 4px;
    padding-bottom: 18px;
}

.brand strong {
    color: #fff;
    font-size: 21px;
    letter-spacing: .02em;
}

.brand span,
.user-card small,
.muted {
    color: var(--muted);
}

.sidebar nav {
    display: grid;
    gap: 8px;
    margin-top: 22px;
}

.sidebar a {
    align-items: center;
    border: 1px solid transparent;
    border-radius: 10px;
    color: rgba(255, 255, 255, .78);
    display: flex;
    font-weight: 700;
    min-height: 42px;
    padding: 0 12px;
    position: relative;
    transition: background .16s ease, border-color .16s ease, color .16s ease, transform .16s ease;
}

.sidebar a.active,
.sidebar a:hover {
    background: rgba(255, 255, 255, .12);
    border-color: rgba(100, 194, 223, .22);
    color: #fff;
}

.sidebar a.active::before {
    background: var(--accent);
    border-radius: 999px;
    content: "";
    height: 22px;
    left: -7px;
    position: absolute;
    width: 4px;
}

.sidebar a:hover {
    transform: translateX(2px);
}

.user-card {
    border-top: 1px solid rgba(255, 255, 255, .12);
    display: grid;
    gap: 7px;
    margin-top: auto;
    padding-top: 18px;
}

.user-card button {
    background: transparent;
    border: 0;
    color: var(--accent);
    cursor: pointer;
    font-weight: 700;
    padding: 0;
    text-align: left;
}

.content {
    align-content: start;
    display: grid;
    gap: 18px;
    padding: 42px 24px 28px;
}

.page-head,
.panel-head {
    align-items: center;
    display: flex;
    gap: 16px;
    justify-content: space-between;
}

h1,
h2,
p {
    margin: 0;
}

h1 {
    font-size: 28px;
}

h2 {
    font-size: 18px;
}

.panel,
.metric,
.login-panel {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.panel {
    overflow: auto;
    padding: 16px;
}

.metrics {
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.settings-grid {
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(4, minmax(220px, 1fr));
    margin-top: 12px;
}

.settings-card {
    align-items: center;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: 0 2px 8px rgba(16, 20, 59, .06);
    color: var(--ink);
    display: grid;
    gap: 14px;
    grid-template-columns: 48px 1fr;
    min-height: 88px;
    padding: 16px;
}

.settings-card:hover {
    border-color: var(--primary);
    box-shadow: 0 6px 18px rgba(16, 20, 59, .1);
}

.settings-card strong,
.settings-card small {
    display: block;
}

.settings-card small {
    color: var(--muted);
    line-height: 1.35;
    margin-top: 4px;
}

.settings-icon {
    align-items: center;
    background: var(--primary-dark);
    border-radius: 50%;
    color: #fff;
    display: inline-flex;
    font-size: 12px;
    font-weight: 700;
    height: 44px;
    justify-content: center;
    width: 44px;
}

.metric {
    display: grid;
    gap: 8px;
    padding: 18px;
}

.metric span {
    color: var(--muted);
}

.metric strong {
    font-size: 30px;
}

table {
    border-collapse: collapse;
    width: 100%;
}

th,
td {
    border-bottom: 1px solid var(--line);
    padding: 12px 10px;
    text-align: left;
    vertical-align: top;
}

th {
    color: var(--muted);
    font-size: 12px;
    text-transform: uppercase;
}

td span {
    color: var(--muted);
    display: block;
    font-size: 13px;
    margin-top: 3px;
}

.button {
    align-items: center;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    color: var(--ink);
    cursor: pointer;
    display: inline-flex;
    font-weight: 700;
    justify-content: center;
    min-height: 40px;
    padding: 0 16px;
    transition: background .16s ease, border-color .16s ease, box-shadow .16s ease, transform .16s ease;
    width: auto;
}

.button.primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
    box-shadow: 0 8px 18px rgba(29, 150, 197, .24);
}

.button.primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
}

.button.danger {
    background: #fff0ed;
    border-color: #ffd1ca;
    color: var(--danger);
}

.button.danger:hover {
    background: var(--danger);
    border-color: var(--danger);
    color: #fff;
}

.button.whatsapp {
    background: #e8f7ef;
    border-color: #bfe9cf;
    color: #137a3d;
}

.button.warning {
    background: #fff8db;
    border-color: #f2d35d;
    color: #6f5200;
}

.button.warning:hover {
    background: #f2c94c;
    border-color: #f2c94c;
    color: #10143b;
    box-shadow: 0 8px 18px rgba(242, 201, 76, .28);
}

.button:hover {
    box-shadow: 0 8px 18px rgba(16, 20, 59, .1);
    transform: translateY(-1px);
}

.button.small {
    min-height: 32px;
    padding: 0 10px;
}

.form-grid {
    align-items: end;
    display: grid;
    gap: 14px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.stack,
label {
    display: grid;
    gap: 7px;
}

label {
    color: #3e4a52;
    font-weight: 700;
}

input,
select,
textarea {
    background: #fff;
    border: 1px solid #d7e1e7;
    border-radius: var(--radius);
    color: var(--ink);
    min-height: 44px;
    padding: 9px 12px;
    width: 100%;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(29, 150, 197, .14);
    outline: 0;
}

textarea {
    resize: vertical;
}

.span-2,
.actions {
    grid-column: 1 / -1;
}

.actions {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: flex-start;
}

.actions .button,
.actions button {
    flex: 0 0 auto;
}

.action-panel {
    align-items: center;
    display: flex;
    gap: 16px;
    justify-content: space-between;
}

.panel-actions {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: flex-end;
}

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

.row-title {
    color: var(--ink);
    display: inline-grid;
    gap: 3px;
}

.row-title:hover strong {
    color: var(--primary);
}

.breadcrumbs {
    align-items: center;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 12px 14px;
}

.breadcrumbs span {
    color: var(--muted);
}

.folder-grid {
    display: grid;
    gap: 8px;
    grid-template-columns: repeat(4, minmax(170px, 1fr));
}

.folder-button {
    align-items: center;
    background: #fff;
    border: 1px solid #d7e1e7;
    border-radius: var(--radius);
    color: var(--ink);
    display: inline-flex;
    font-weight: 700;
    gap: 10px;
    min-height: 44px;
    padding: 9px 13px;
}

.folder-button:hover {
    background: #f7fbfd;
    border-color: var(--primary);
    box-shadow: 0 8px 18px rgba(16, 20, 59, .08);
    color: var(--primary-dark);
}

.folder-mark {
    background: rgba(29, 150, 197, .14);
    border-radius: 6px;
    display: inline-block;
    flex: 0 0 auto;
    height: 24px;
    position: relative;
    width: 30px;
}

.folder-mark::before {
    background: var(--primary);
    border-radius: 4px 4px 0 0;
    content: "";
    height: 7px;
    left: 2px;
    position: absolute;
    top: -4px;
    width: 14px;
}

.folder-button.up .folder-mark {
    align-items: center;
    background: rgba(16, 20, 59, .08);
    border-radius: 50%;
    color: var(--primary-dark);
    display: inline-flex;
    font-size: 10px;
    font-weight: 700;
    height: 28px;
    justify-content: center;
    width: 28px;
}

.folder-button.up .folder-mark::before {
    display: none;
}

.folder-card {
    align-items: center;
    background: #fff;
    border: 1px solid #d7e1e7;
    border-radius: var(--radius);
    color: var(--ink);
    display: flex;
    gap: 10px;
    min-height: 46px;
    padding: 9px 12px;
}

.folder-card:hover {
    background: #f7fbfd;
    border-color: var(--primary);
    box-shadow: 0 8px 18px rgba(16, 20, 59, .08);
}

.folder-card strong {
    font-size: 14px;
}

.folder-icon {
    background: rgba(29, 150, 197, .14);
    border-radius: 6px;
    color: var(--primary-dark);
    display: block;
    flex: 0 0 auto;
    height: 24px;
    position: relative;
    width: 30px;
}

.folder-icon::before {
    background: var(--primary);
    border-radius: 4px 4px 0 0;
    content: "";
    height: 7px;
    left: 2px;
    position: absolute;
    top: -4px;
    width: 14px;
}

.folder-card.up .folder-icon {
    align-items: center;
    background: rgba(16, 20, 59, .08);
    border-radius: 50%;
    color: var(--primary-dark);
    display: inline-flex;
    font-size: 10px;
    font-weight: 700;
    height: 28px;
    justify-content: center;
    width: 28px;
}

.folder-card.up .folder-icon::before {
    display: none;
}

.notice {
    border-radius: var(--radius);
    padding: 12px 14px;
}

.notice.success {
    background: #eaf7f2;
    color: var(--primary-dark);
}

.notice.danger {
    background: #fff0ed;
    color: var(--danger);
}

.pill {
    background: #eef2f4;
    border-radius: 999px;
    color: #34434d;
    display: inline-flex;
    font-size: 12px;
    padding: 4px 9px;
}

.checkbox-list {
    display: grid;
    gap: 10px;
}

.check-row {
    align-items: center;
    background: #fff;
    border: 1px solid #d7e1e7;
    border-radius: 12px;
    cursor: pointer;
    display: flex;
    gap: 12px;
    padding: 12px 14px;
}

.check-row:hover {
    border-color: var(--primary);
    box-shadow: 0 8px 18px rgba(16, 20, 59, .08);
}

.check-row input {
    height: 18px;
    width: 18px;
}

.check-row span {
    display: grid;
    gap: 3px;
}

.check-row small {
    color: var(--muted);
}

.empty {
    color: var(--muted);
    padding: 16px 0;
}

.login-body {
    align-items: center;
    background: linear-gradient(135deg, #10143b 0%, #1d96c5 100%);
    display: flex;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
}

.login-panel {
    display: grid;
    gap: 18px;
    max-width: 420px;
    padding: 28px;
    width: 100%;
}

.eyebrow {
    color: var(--accent);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: .08em;
}

@media (max-width: 900px) {
    .app-shell {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: static;
    }

    .metrics,
    .settings-grid,
    .folder-grid,
    .form-grid {
        grid-template-columns: 1fr;
    }

    .page-head,
    .panel-head,
    .action-panel {
        align-items: flex-start;
        flex-direction: column;
    }

    .content {
        padding: 18px;
    }
}