/* Mailing-Tool – schlichtes, responsives Layout ohne externe Abhängigkeiten */
:root {
    --accent: #1e6fb8;
    --text: #1f2933;
    --muted: #6b7785;
    --border: #dde2e8;
    --bg: #f4f6f8;
    --card: #ffffff;
    --ok: #1d7a46;
    --ok-bg: #e5f5ec;
    --warn: #8a5a00;
    --warn-bg: #fff4d6;
    --error: #b42318;
    --error-bg: #fdecea;
    --info: #1e5a8a;
    --info-bg: #e6f0fa;
    --radius: 8px;
}
* { box-sizing: border-box; }
html { font-size: 16px; }
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.5;
}
a { color: var(--accent); }
h1 { font-size: 1.6rem; margin: 0 0 1rem; }
h2 { font-size: 1.15rem; margin: 1.25rem 0 .75rem; }
h2:first-child, h1:first-child { margin-top: 0; }
h3 { font-size: 1rem; margin: 1rem 0 .5rem; }
hr { border: 0; border-top: 1px solid var(--border); margin: 1rem 0; }
code, pre, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .9em; }

/* Kopfzeile */
.topbar {
    display: flex; align-items: center; gap: 1rem; flex-wrap: wrap;
    background: var(--card); border-bottom: 3px solid var(--accent);
    padding: .6rem 1.25rem;
}
.brand { display: flex; align-items: center; gap: .6rem; font-weight: 700; color: var(--text); text-decoration: none; margin-right: auto; }
.brand .logo, .bare-brand .logo { max-height: 36px; max-width: 160px; }
.nav { display: flex; align-items: center; gap: .25rem; flex-wrap: wrap; }
.nav a, .nav .link {
    padding: .4rem .65rem; border-radius: 6px; color: var(--text); text-decoration: none; font-size: .95rem;
}
.nav a:hover, .nav .link:hover { background: var(--bg); }
.nav a.active { background: var(--accent); color: #fff; }
.nav-sep { width: 1px; height: 1.4rem; background: var(--border); margin: 0 .35rem; }
.nav-toggle { display: none; background: none; border: 1px solid var(--border); border-radius: 6px; font-size: 1.2rem; padding: .2rem .6rem; cursor: pointer; }

.main { max-width: 1100px; margin: 1.5rem auto; padding: 0 1.25rem; }
.footer { text-align: center; color: var(--muted); font-size: .8rem; padding: 1rem 0 2rem; }

/* Schlichte Seiten (Login, Abmeldung, Installation) */
.bare-main { max-width: 760px; margin: 3rem auto; padding: 0 1rem; }
.bare-brand { text-align: center; margin-bottom: 1.25rem; }
.bare-brand .brand-name { font-weight: 700; font-size: 1.2rem; margin-top: .4rem; }
.card.narrow { max-width: 420px; margin: 0 auto; }
.card.wide { max-width: 760px; margin: 0 auto; }

/* Karten & Raster */
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; margin-bottom: 1.25rem; border-top: 3px solid var(--accent); }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 1.25rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 1.25rem; }
.grid-2 > .card { margin-bottom: 1.25rem; }
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.page-head h1 { margin: 0; }
.actions { display: flex; gap: .5rem; flex-wrap: wrap; }

/* Formulare */
label { display: block; margin-bottom: .9rem; font-weight: 600; font-size: .92rem; }
label small, fieldset small { display: block; font-weight: 400; color: var(--muted); margin-top: .25rem; }
input[type=text], input[type=email], input[type=password], input[type=url], input[type=number], input[type=search], input[type=file], select, textarea {
    display: block; width: 100%; margin-top: .3rem; padding: .55rem .65rem;
    border: 1px solid var(--border); border-radius: 6px; font: inherit; font-weight: 400; background: #fff; color: var(--text);
}
input[type=color] { display: block; margin-top: .3rem; width: 4rem; height: 2.4rem; border: 1px solid var(--border); border-radius: 6px; padding: 2px; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--accent); }
textarea { resize: vertical; min-height: 5rem; }
textarea.mono { font-size: .95rem; line-height: 1.5; }
fieldset { border: 1px solid var(--border); border-radius: 6px; padding: .75rem 1rem; margin: 0 0 1rem; }
legend { font-weight: 600; font-size: .92rem; padding: 0 .3rem; }
.check-label { display: flex; align-items: center; gap: .45rem; font-weight: 400; margin-bottom: .4rem; }
.check-label.inline { display: inline-flex; margin: 0 0 0 .5rem; }
.checks { display: flex; flex-wrap: wrap; gap: .1rem 1.25rem; }
.checks.indent { margin-left: 1.6rem; }
.field-error { display: block; color: var(--error); font-weight: 500; font-size: .88rem; margin-top: .25rem; }
.form-actions { display: flex; gap: .6rem; flex-wrap: wrap; margin-top: 1rem; }
.inline-form { display: flex; gap: .5rem; align-items: center; }
.inline-form input { margin-top: 0; }
.inline-form.compact input { max-width: 320px; padding: .35rem .5rem; }
form.inline { display: inline; }
.filters { display: flex; gap: .6rem; flex-wrap: wrap; align-items: center; padding: .9rem 1.25rem; }
.filters input, .filters select { width: auto; flex: 1 1 180px; margin-top: 0; }
.stack { display: flex; flex-direction: column; gap: .5rem; align-items: flex-start; }

/* Buttons */
.btn {
    display: inline-block; padding: .5rem .95rem; border-radius: 6px; border: 1px solid var(--border);
    background: #fff; color: var(--text); font: inherit; font-size: .95rem; font-weight: 500; cursor: pointer; text-decoration: none; line-height: 1.3;
}
.btn:hover { border-color: var(--accent); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-danger { color: var(--error); border-color: #f0c4bf; }
.btn-danger:hover { background: var(--error-bg); border-color: var(--error); }
.btn-link { border-color: transparent; background: none; color: var(--accent); }
.btn-small { padding: .25rem .55rem; font-size: .85rem; }
.btn-large { padding: .75rem 1.3rem; font-size: 1.05rem; }
.btn-block { display: block; width: 100%; text-align: center; }
button.link { background: none; border: 0; font: inherit; cursor: pointer; }
.code-input { font-size: 1.6rem; letter-spacing: .35em; text-align: center; font-family: ui-monospace, Menlo, Consolas, monospace; }
button.link { color: var(--accent); text-decoration: underline; padding: 0; }
button[disabled] { opacity: .5; cursor: not-allowed; }

/* Hinweise */
.alert { padding: .75rem 1rem; border-radius: 6px; margin-bottom: 1rem; border: 1px solid transparent; }
.alert-success { background: var(--ok-bg); color: var(--ok); border-color: #bfe3cd; }
.alert-error { background: var(--error-bg); color: var(--error); border-color: #f5c2bc; }
.alert-warning { background: var(--warn-bg); color: var(--warn); border-color: #f3dc9c; }
.alert-info { background: var(--info-bg); color: var(--info); border-color: #c3dbf2; }
.warn-text { color: var(--warn); }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.big { font-size: 1.2rem; }
.center { text-align: center; }
.center-text { text-align: center; }
.right { text-align: right; }
.nowrap { white-space: nowrap; }
.break { word-break: break-word; }
.pre-line { white-space: pre-line; }

/* Tabellen */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: .93rem; }
.table th, .table td { text-align: left; padding: .55rem .6rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.table th { font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); font-weight: 600; }
.table tr:hover td { background: #fafbfc; }
.table .num { text-align: right; }
.table .check { width: 2rem; }
.table.small { font-size: .85rem; }
.bulk-bar { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; margin-bottom: .75rem; }
.bulk-bar select { width: auto; margin-top: 0; }

.badge { display: inline-block; padding: .1rem .5rem; border-radius: 999px; font-size: .78rem; font-weight: 600; background: var(--bg); color: var(--muted); white-space: nowrap; }
.badge-ok { background: var(--ok-bg); color: var(--ok); }
.badge-warn { background: var(--warn-bg); color: var(--warn); }
.badge-error { background: var(--error-bg); color: var(--error); }
.badge-info { background: var(--info-bg); color: var(--info); }
.badge-muted { background: #eef0f3; color: var(--muted); }
.tag { display: inline-block; padding: 0 .45rem; border-radius: 4px; font-size: .78rem; background: var(--info-bg); color: var(--info); margin: 0 .15rem .15rem 0; }

/* Übersicht */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; margin-bottom: 1.25rem; }
.stat { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; text-decoration: none; color: var(--text); }
.stat strong { display: block; font-size: 1.8rem; color: var(--accent); }
.stat span { color: var(--muted); font-size: .9rem; }

/* Fortschritt */
.progress { background: #e8ebef; border-radius: 999px; height: 8px; overflow: hidden; min-width: 80px; }
.progress.large { height: 14px; margin: .75rem 0 1rem; }
.progress-bar { background: var(--accent); height: 100%; transition: width .4s ease; }
.send-info { min-height: 1.5em; }
.log { list-style: none; padding: 0; margin: 1rem 0 0; max-height: 220px; overflow-y: auto; }
.log li { padding: .15rem 0; border-bottom: 1px dashed var(--border); }

.dl { display: grid; grid-template-columns: max-content 1fr; gap: .35rem 1rem; margin: 0 0 1rem; }
.dl dt { color: var(--muted); font-size: .9rem; }
.dl dd { margin: 0; word-break: break-word; }

.pagination { display: flex; gap: .3rem; flex-wrap: wrap; justify-content: center; margin-bottom: 1.5rem; }
.pagination a, .pagination span { padding: .3rem .65rem; border-radius: 6px; border: 1px solid var(--border); background: #fff; text-decoration: none; }
.pagination .current { background: var(--accent); color: #fff; border-color: var(--accent); }

.steps { display: flex; gap: .5rem; list-style: none; padding: 0; margin: 0 0 1rem; counter-reset: s; flex-wrap: wrap; }
.steps li { counter-increment: s; color: var(--muted); font-size: .9rem; }
.steps li::before { content: counter(s); display: inline-block; width: 1.5rem; height: 1.5rem; line-height: 1.5rem; text-align: center; border-radius: 50%; background: #e8ebef; margin-right: .35rem; font-weight: 600; }
.steps li + li::after { content: ""; }
.steps li.current { color: var(--text); font-weight: 600; }
.steps li.current::before, .steps li.done::before { background: var(--accent); color: #fff; }

.mail-preview { border: 1px solid var(--border); border-radius: 6px; overflow: hidden; margin-bottom: 1rem; }
.mail-text, .code { background: #f7f8fa; border: 1px solid var(--border); border-radius: 6px; padding: .75rem 1rem; white-space: pre-wrap; word-break: break-word; margin: .5rem 0; }
.code { position: relative; }
.code .copy-btn { position: absolute; top: .4rem; right: .4rem; }
.attachments { margin: 0 0 .75rem; padding-left: 1.2rem; }
.logo-preview { display: flex; align-items: center; gap: .5rem; margin-top: .5rem; }
.logo-preview img { max-height: 40px; max-width: 160px; border: 1px solid var(--border); border-radius: 4px; padding: 2px; background: #fff; }

.danger-zone { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; padding: .5rem 0 1.5rem; }

.checklist { list-style: none; padding: 0; margin: 0 0 1rem; }
.checklist li { padding: .3rem 0 .3rem 1.75rem; position: relative; font-size: .93rem; }
.checklist li::before { position: absolute; left: 0; font-weight: 700; }
.checklist li.ok::before { content: "✓"; color: var(--ok); }
.checklist li.fail::before { content: "✗"; color: var(--error); }
.checklist li.opt::before { content: "–"; color: var(--muted); }

@media (max-width: 800px) {
    .grid-2, .grid-3 { grid-template-columns: 1fr; }
    .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .nav-toggle { display: block; }
    .nav { display: none; width: 100%; flex-direction: column; align-items: stretch; }
    .nav.open { display: flex; }
    .nav-sep { width: 100%; height: 1px; margin: .25rem 0; }
    .main { margin-top: 1rem; }
    .dl { grid-template-columns: 1fr; }
}

.totp-setup { display: flex; gap: 1.25rem; align-items: center; flex-wrap: wrap; margin-bottom: 1rem; }
.totp-qr { background: #fff; border: 1px solid var(--border); border-radius: 6px; padding: 4px; }
.totp-secret { font-size: 1.05rem; letter-spacing: .08em; word-break: break-all; }
.recovery-codes { display: grid; grid-template-columns: repeat(auto-fill, minmax(9rem, 1fr)); gap: .4rem; list-style: none; padding: 0; margin: 0 0 1rem; }
.recovery-codes code { font-size: 1.05rem; letter-spacing: .05em; }