:root {
    --bg: #f6f7fb;
    --ink: #172033;
    --muted: #667085;
    --panel: #ffffff;
    --line: #e6e9f0;
    --primary: #156f76;
    --primary-dark: #0d5359;
    --accent: #c76b38;
    --danger: #b42318;
    --ok: #137a4f;
    --shadow: 0 20px 60px rgba(22, 31, 49, .10);
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--ink);
    background: var(--bg);
}
a { color: var(--primary); text-decoration: none; font-weight: 700; }
button, input, textarea, select { font: inherit; }
.shell { min-height: 100vh; display: flex; }
.sidebar {
    width: 264px;
    padding: 24px;
    background: #101828;
    color: #fff;
    position: sticky;
    top: 0;
    height: 100vh;
    transition: width .18s ease, padding .18s ease;
    overflow: hidden;
}
.brand { display: flex; align-items: center; gap: 12px; margin-bottom: 36px; }
.brand span {
    width: 42px; height: 42px; display: grid; place-items: center;
    border-radius: 8px; background: var(--primary); font-weight: 900;
    flex: 0 0 auto;
}
.brand strong { white-space: nowrap; }
.sidebar-toggle, .mobile-menu-toggle {
    border: 1px solid rgba(255,255,255,.20);
    background: rgba(255,255,255,.08);
    color: #fff;
    border-radius: 8px;
    width: 38px;
    height: 38px;
    cursor: pointer;
    font-weight: 900;
}
.sidebar-toggle { margin-left: auto; }
.mobile-menu-toggle {
    display: none;
    color: var(--ink);
    background: #fff;
    border-color: var(--line);
    margin-bottom: 10px;
}
.sidebar nav { display: grid; gap: 8px; }
.sidebar a {
    color: #d9e2f1;
    padding: 12px 14px;
    border-radius: 8px;
}
.sidebar a:hover { background: rgba(255,255,255,.08); color: #fff; }
.sidebar-collapsed .sidebar { width: 82px; padding: 20px 14px; }
.sidebar-collapsed .brand { justify-content: center; }
.sidebar-collapsed .brand strong,
.sidebar-collapsed .sidebar nav a { display: none; }
.sidebar-collapsed .sidebar-toggle { margin-left: 0; }
.main { flex: 1; padding: 28px; min-width: 0; }
.main.public { display: grid; place-items: center; }
.topbar { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 24px; }
.topbar h1 { margin: 0; font-size: 28px; }
.eyebrow { margin: 0 0 4px; color: var(--muted); font-size: 13px; text-transform: uppercase; letter-spacing: .08em; }
.user-pill {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 10px 14px;
    box-shadow: 0 8px 24px rgba(16,24,40,.06);
}
.panel, .auth-card, .form-card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
}
.panel { padding: 20px; margin-bottom: 20px; }
.panel h2 { margin: 0 0 14px; font-size: 19px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
.panel-head h2 { margin: 0; }
.auth-card { width: min(440px, calc(100vw - 32px)); padding: 34px; }
.auth-card h1 { margin: 0 0 8px; }
.auth-card p, .panel p { color: var(--muted); }
.stack { display: grid; gap: 14px; }
input, textarea, select {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 11px 12px;
    background: #fff;
    color: var(--ink);
}
textarea { min-height: 110px; resize: vertical; }
input:focus, textarea:focus, select:focus {
    outline: 3px solid rgba(21,111,118,.16);
    border-color: var(--primary);
}
.field { display: grid; gap: 7px; font-weight: 700; }
.field span { font-size: 12px; color: #344054; }
.btn {
    border: 1px solid var(--line);
    background: #fff;
    color: var(--ink);
    padding: 11px 15px;
    border-radius: 8px;
    font-weight: 800;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
}
.btn.primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}
.btn.primary:hover { background: var(--primary-dark); }
.btn.danger {
    border-color: #ffd5d1;
    background: #fff4f2;
    color: var(--danger);
}
.btn.danger:hover { background: #ffe8e5; }
.alert { padding: 13px 15px; border-radius: 8px; margin-bottom: 16px; background: #e8f7ef; color: var(--ok); font-weight: 700; }
.alert.danger { background: #fff0ee; color: var(--danger); }
.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-bottom: 22px; }
.stats article {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 22px;
    box-shadow: 0 12px 40px rgba(16,24,40,.07);
}
.stats strong { display: block; font-size: 28px; margin-bottom: 6px; }
.stats span { color: var(--muted); }
.table-wrap { overflow: visible; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 13px 10px; text-align: left; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-size: 13px; }
.actions { display: flex; gap: 12px; justify-content: flex-end; }
.actions form { margin: 0; }
.action-menu {
    position: relative;
    display: inline-block;
}
.action-menu summary {
    list-style: none;
    border: 1px solid var(--line);
    background: #fff;
    border-radius: 8px;
    padding: 9px 12px;
    font-weight: 800;
    cursor: pointer;
    min-width: 92px;
    text-align: center;
}
.action-menu summary::-webkit-details-marker { display: none; }
.action-menu[open] summary {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(21,111,118,.12);
}
.action-menu > div {
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    z-index: 100;
    min-width: 190px;
    display: grid;
    gap: 2px;
    padding: 8px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
}
.action-menu a,
.action-menu .link-button {
    display: block;
    width: 100%;
    text-align: left;
    padding: 9px 10px;
    border-radius: 7px;
}
.action-menu a:hover,
.action-menu .link-button:hover { background: #f4f7fb; }
.link-button {
    border: 0;
    background: transparent;
    color: var(--primary);
    padding: 0;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}
.danger-link { color: var(--danger); }
.inline-import,
.message-filters,
.test-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
    align-items: end;
    margin: 0 0 16px;
}
.message-filters { grid-template-columns: minmax(180px, 1fr) 180px auto; }
.file-import {
    display: grid;
    gap: 6px;
    color: var(--muted);
    font-size: 12px;
    font-weight: 800;
}
.file-import input { padding: 8px; }
.grid.two { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.builder-layout { display: grid; grid-template-columns: 310px minmax(430px, 1fr) 340px; gap: 18px; align-items: start; }
.field-library, .settings { position: sticky; top: 20px; }
.template-picker {
    display: grid;
    gap: 7px;
    margin: 12px 0 14px;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #f8fafc;
}
.template-picker strong { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.template-picker a {
    display: block;
    padding: 7px 8px;
    border-radius: 7px;
    color: #253044;
    font-size: 13px;
}
.template-picker a:hover { background: #fff; color: var(--primary); }
.builder-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    margin: -4px 0 14px;
}
.icon-action {
    min-height: 34px;
    padding: 7px 10px;
    font-size: 12px;
}
.icon-action:disabled { opacity: .45; cursor: not-allowed; }
.segmented {
    display: inline-grid;
    grid-auto-flow: column;
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
    background: #fff;
}
.segmented button {
    border: 0;
    border-right: 1px solid var(--line);
    background: transparent;
    padding: 8px 10px;
    font-weight: 800;
    font-size: 12px;
    cursor: pointer;
}
.segmented button:last-child { border-right: 0; }
.segmented button.active { background: #eaf7f7; color: var(--primary-dark); }
.builder-toolbar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 14px;
    align-items: end;
}
.palette { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin: 14px 0 0; }
.compact-help {
    font-size: 12px;
    line-height: 1.5;
}
.chip {
    border: 1px solid #d0d7e2;
    background: #fff;
    color: #253044;
    border-radius: 8px;
    padding: 8px 9px;
    font-weight: 800;
    cursor: pointer;
    min-height: 40px;
    text-align: left;
    display: grid;
    grid-template-columns: 24px minmax(0, 1fr);
    align-items: center;
    gap: 8px;
    font-size: 13px;
    line-height: 1.15;
    overflow: hidden;
}
.chip::before {
    content: attr(data-icon);
    width: 24px;
    height: 24px;
    display: inline-grid;
    place-items: center;
    border: 1px solid #d8e0eb;
    border-radius: 6px;
    color: var(--primary-dark);
    background: #f8fafc;
    font-size: 11px;
    font-weight: 900;
}
.chip span {
    min-width: 0;
    overflow-wrap: anywhere;
}
.chip:hover { border-color: var(--primary); box-shadow: 0 8px 22px rgba(21,111,118,.10); }
.builder-canvas {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 12px;
    margin-top: 18px;
    min-height: 360px;
    align-items: start;
    border: 1px dashed #cbd5e1;
    border-radius: 8px;
    padding: 12px;
    background:
        linear-gradient(#f8fafc, #f8fafc) padding-box,
        repeating-linear-gradient(90deg, transparent 0, transparent calc(8.333% - 1px), rgba(21,111,118,.08) calc(8.333% - 1px), rgba(21,111,118,.08) 8.333%);
}
.builder-canvas[data-preview="tablet"] {
    max-width: 760px;
    margin-inline: auto;
}
.builder-canvas[data-preview="mobile"] {
    max-width: 390px;
    margin-inline: auto;
    grid-template-columns: 1fr;
}
.builder-canvas[data-preview="mobile"] .builder-field { grid-column: 1 / -1; }
.builder-canvas.drop-ready { border-color: var(--primary); background-color: #f0fbfb; }
.empty-canvas {
    grid-column: 1 / -1;
    min-height: 220px;
    display: grid;
    place-items: center;
    color: var(--muted);
    font-weight: 800;
}
.builder-field {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #ffffff;
    padding: 12px;
    display: grid;
    gap: 10px;
    cursor: pointer;
}
.builder-field.selected {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(21,111,118,.14);
}
.builder-field.dragging { opacity: .55; }
.builder-field-head { display: flex; justify-content: space-between; gap: 8px; align-items: center; }
.builder-field-head strong {
    font-size: 14px;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.icon-btn {
    width: 30px;
    height: 30px;
    border: 1px solid var(--line);
    background: #fff;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 900;
    color: var(--muted);
    flex: 0 0 auto;
}
.drag-handle { cursor: grab; }
.field-preview input,
.field-preview textarea,
.field-preview select {
    background: #fff;
    pointer-events: none;
    min-height: 40px;
    font-size: 13px;
}
.field-preview .field span { font-size: 12px; }
.pagebreak-preview {
    border: 1px dashed #9aa8ba;
    border-radius: 8px;
    padding: 14px;
    text-align: center;
    color: var(--muted);
    background: #fff;
    font-weight: 800;
}
.form-heading { margin: 0; font-size: 24px; color: var(--ink); }
.form-paragraph { margin: 0; color: var(--muted); line-height: 1.6; }
.form-spacer { min-height: 28px; }
.form-snippet {
    padding: 12px;
    border: 1px dashed var(--line);
    border-radius: 8px;
    background: #fff;
}
.nps-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.nps-row label {
    min-width: 34px;
    min-height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
}
.mini-grid { display: grid; grid-template-columns: 1fr 150px 140px; gap: 10px; align-items: end; }
.canvas-span-12 { grid-column: span 12; }
.canvas-span-8 { grid-column: span 8; }
.canvas-span-6 { grid-column: span 6; }
.canvas-span-4 { grid-column: span 4; }
.canvas-span-3 { grid-column: span 3; }
.toggle { display: flex; align-items: center; gap: 10px; font-weight: 700; margin: 12px 0; }
.toggle input { width: auto; }
.smtp-settings { display: grid; gap: 12px; margin: 12px 0; }
.muted { color: var(--muted); }
.muted code {
    background: #eef2f7;
    border: 1px solid #dce3ee;
    border-radius: 6px;
    padding: 2px 5px;
    color: #344054;
}
.field-inspector { display: grid; gap: 12px; }
.code { min-height: 150px; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 12px; }
.editor-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 8px 8px 0 0;
    background: #f8fafc;
}
.editor-toolbar button {
    min-height: 34px;
    border: 1px solid #d8e0eb;
    background: #fff;
    border-radius: 7px;
    padding: 7px 10px;
    color: #253044;
    font-weight: 800;
    cursor: pointer;
}
.editor-toolbar button:hover {
    border-color: var(--primary);
    color: var(--primary-dark);
}
.mail-editor {
    min-height: 460px;
    border: 1px solid var(--line);
    border-top: 0;
    border-radius: 0 0 8px 8px;
    background: #eef2f7;
    padding: 22px;
    overflow: auto;
}
.mail-editor:focus {
    outline: 3px solid rgba(21,111,118,.16);
    border-color: var(--primary);
}
.split { display: grid; grid-template-columns: 340px minmax(0, 1fr); gap: 24px; }
.settings-layout {
    display: grid;
    grid-template-columns: 230px minmax(0, 1fr);
    gap: 22px;
    align-items: start;
}
.settings-nav {
    position: sticky;
    top: 20px;
    display: grid;
    gap: 8px;
    padding: 12px;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 12px 36px rgba(16,24,40,.06);
}
.settings-nav a {
    padding: 10px 12px;
    border-radius: 8px;
    color: #344054;
}
.settings-nav a:hover {
    background: #f4f7fb;
    color: var(--primary-dark);
}
.settings-nav a.active {
    background: #eaf7f7;
    color: var(--primary-dark);
    font-weight: 900;
}
.settings-content {
    display: grid;
    gap: 22px;
    min-width: 0;
}
.settings-section { scroll-margin-top: 20px; }
.message-list { display: grid; gap: 14px; }
.message {
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 16px;
    background: #fbfcff;
}
.message-head { display: flex; justify-content: space-between; gap: 16px; color: var(--muted); margin-bottom: 10px; }
.status-badge {
    display: inline-flex;
    align-items: center;
    min-height: 24px;
    padding: 3px 8px;
    border-radius: 999px;
    background: #eaf7f7;
    color: var(--primary-dark);
    font-size: 12px;
    margin-right: 8px;
}
.message-meta {
    display: grid;
    grid-template-columns: 160px minmax(0, 1fr) auto;
    gap: 10px;
    align-items: center;
    margin-top: 12px;
}
.message-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 14px;
}
.message-actions form { margin: 0; }
.public-form-page, .embedded {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    background: linear-gradient(135deg, #eefafa 0%, #f8f1ec 100%);
}
.embedded { background: transparent; padding: 0; min-height: auto; }
.form-card {
    width: min(760px, 100%);
    padding: 28px;
}
.form-card h1 { margin: 0 0 20px; font-size: 28px; }
.form-card.success { text-align: center; }
.form-grid {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 14px;
}
.hp-field {
    position: absolute !important;
    left: -10000px !important;
    width: 1px !important;
    height: 1px !important;
    opacity: 0 !important;
    pointer-events: none !important;
}
.form-step {
    display: none;
    grid-column: 1 / -1;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 14px;
}
.form-step.active { display: grid; }
.form-step-nav {
    display: flex;
    justify-content: space-between;
    gap: 12px;
}
.form-span-12 { grid-column: span 12; }
.form-span-8 { grid-column: span 8; }
.form-span-6 { grid-column: span 6; }
.form-span-4 { grid-column: span 4; }
.form-span-3 { grid-column: span 3; }
.choice-row { display: flex; flex-wrap: wrap; gap: 14px; font-weight: 500; }
.choice-row input { width: auto; }
.captcha-box {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: fit-content;
    min-width: 132px;
    padding: 10px 14px;
    border: 1px solid #ccd6e4;
    border-radius: 8px;
    background: repeating-linear-gradient(135deg, #f7fafc 0, #f7fafc 8px, #edf2f7 8px, #edf2f7 16px);
    color: #172033;
    font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 18px;
    font-weight: 900;
    letter-spacing: .18em;
    user-select: none;
}

@media (max-width: 980px) {
    .shell { display: block; }
    .sidebar { width: auto; height: auto; position: static; }
    .sidebar-collapsed .sidebar { width: auto; padding: 20px; }
    .sidebar-collapsed .brand strong,
    .sidebar-collapsed .sidebar nav a { display: block; }
    .sidebar nav { grid-template-columns: repeat(5, minmax(0, 1fr)); }
    .builder-layout, .split, .settings-layout { grid-template-columns: 1fr; }
    .field-library, .settings { position: static; }
    .settings-nav { position: static; grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .mobile-menu-toggle { display: inline-grid; place-items: center; }
}

@media (max-width: 720px) {
    .main { padding: 18px; }
    .topbar, .panel-head { align-items: flex-start; flex-direction: column; }
    .stats, .grid.two, .mini-grid, .builder-toolbar, .inline-import, .message-filters, .test-row, .message-meta { grid-template-columns: 1fr; }
    .sidebar nav { grid-template-columns: 1fr 1fr; }
    .auth-card, .form-card { padding: 22px; }
    .actions { justify-content: flex-start; }
    .table-wrap { overflow-x: auto; }
    .action-menu > div { left: 0; right: auto; }
    .settings-nav { grid-template-columns: 1fr; }
    .palette { grid-template-columns: 1fr; }
    .builder-canvas, .form-grid { grid-template-columns: 1fr; }
    .canvas-span-12, .canvas-span-8, .canvas-span-6, .canvas-span-4, .canvas-span-3,
    .form-span-12, .form-span-8, .form-span-6, .form-span-4, .form-span-3 { grid-column: 1 / -1; }
}