@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Manrope:wght@400;600;700;800&display=swap');

:root {
    --ink: #0f2036;
    --muted: #5b7690;
    --paper: #eef4fb;
    --panel: #ffffff;
    --line: #dfe9f5;
    --accent: #2563eb;
    --accent-light: #3b82f6;
    --accent-dark: #1d4ed8;
    --mint: #dbeafe;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 10px;
    --shadow-sm: 0 1px 2px rgba(15, 32, 54, .04), 0 1px 3px rgba(15, 32, 54, .06);
    --shadow-md: 0 8px 24px rgba(29, 78, 216, .08), 0 2px 6px rgba(15, 32, 54, .05);
    --shadow-lg: 0 24px 60px rgba(29, 78, 216, .12), 0 4px 12px rgba(15, 32, 54, .06);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at 90% -5%, #dbeafe 0, transparent 30rem),
        radial-gradient(circle at -5% 30%, #eff6ff 0, transparent 26rem),
        var(--paper);
    color: var(--ink);
    font-family: 'Manrope', sans-serif;
    -webkit-font-smoothing: antialiased;
}

.shell { width: min(1080px, calc(100% - 40px)); margin: 0 auto; padding: 48px 0 40px; }
.hero { margin-bottom: 40px; }
.eyebrow { margin: 0 0 12px; color: var(--accent-dark); font: 600 12px 'DM Mono', monospace; letter-spacing: .04em; }
h1, h2, p { margin-top: 0; }
h1 { max-width: 620px; margin-bottom: 14px; font-size: clamp(34px, 6vw, 56px); line-height: 1.05; letter-spacing: -.01em; font-weight: 800; }
.intro { max-width: 460px; margin-bottom: 0; color: var(--muted); font-size: 17px; line-height: 1.6; }
h2 { margin-bottom: 0; font-size: 24px; letter-spacing: -.01em; font-weight: 800; }

a { transition: color .15s ease; }
button { transition: background-color .15s ease, box-shadow .15s ease, transform .1s ease; }

.board {
    padding: clamp(22px, 4vw, 36px);
    background: var(--panel);
    border: 1px solid rgba(15, 32, 54, .06);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}
.board-heading { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 24px; flex-wrap: wrap; }
.board + .board { margin-top: 24px; }

footer { padding-top: 28px; color: var(--muted); font: 11px 'DM Mono', monospace; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

input, select { min-width: 0; }

/* ------------------------------------------------------------------ */
/* Logo                                                                */
/* ------------------------------------------------------------------ */

.logo-mark { flex: 0 0 auto; display: block; filter: drop-shadow(0 2px 6px rgba(29, 78, 216, .25)); }

/* ------------------------------------------------------------------ */
/* Navigation                                                          */
/* ------------------------------------------------------------------ */

.topnav {
    position: sticky;
    top: 0;
    z-index: 10;
    background: rgba(255, 255, 255, .78);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(15, 32, 54, .06);
}
.topnav-inner { width: min(1080px, calc(100% - 40px)); margin: 0 auto; display: flex; align-items: center; gap: 28px; min-height: 68px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 16px; letter-spacing: -.01em; color: var(--ink); text-decoration: none; }
.nav-collapse { display: flex; align-items: center; gap: 28px; flex: 1; flex-wrap: wrap; }
.nav-links { display: flex; gap: 4px; flex: 1; flex-wrap: wrap; }
.nav-links a {
    color: var(--muted);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    padding: 8px 14px;
    border-radius: 999px;
    transition: color .15s ease, background-color .15s ease;
}
.nav-links a:hover { color: var(--ink); background: rgba(37, 99, 235, .06); }
.nav-links a.active { color: #fff; background: var(--accent); box-shadow: var(--shadow-sm); }
.nav-user { display: flex; align-items: center; gap: 14px; font-size: 14px; }
.nav-user a { color: var(--ink); text-decoration: none; font-weight: 600; }
.nav-user a:hover { color: var(--accent-dark); }

.nav-toggle-checkbox { display: none; }
.nav-toggle-label {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 34px;
    height: 34px;
    margin-left: auto;
    cursor: pointer;
}
.nav-toggle-label span { display: block; height: 2px; width: 100%; background: var(--ink); border-radius: 2px; transition: transform .2s ease, opacity .2s ease; }
.nav-toggle-checkbox:checked ~ .nav-toggle-label span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle-checkbox:checked ~ .nav-toggle-label span:nth-child(2) { opacity: 0; }
.nav-toggle-checkbox:checked ~ .nav-toggle-label span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 860px) {
    .nav-toggle-label { display: flex; }
    .nav-collapse {
        display: none;
        flex-direction: column;
        align-items: stretch;
        width: 100%;
        gap: 4px;
        padding: 6px 0 16px;
    }
    .nav-toggle-checkbox:checked ~ .nav-collapse { display: flex; }
    .nav-links { flex-direction: column; flex: none; gap: 2px; }
    .nav-links a { padding: 10px 14px; }
    .nav-user { flex-direction: column; align-items: flex-start; gap: 10px; padding-top: 12px; margin-top: 6px; border-top: 1px solid var(--line); }
}

/* ------------------------------------------------------------------ */
/* Flash-Meldungen                                                     */
/* ------------------------------------------------------------------ */

.flashes { list-style: none; margin: 0 0 24px; padding: 0; display: grid; gap: 8px; }
.flash { padding: 13px 18px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 600; box-shadow: var(--shadow-sm); }
.flash-success { background: #e6f7ec; color: #1f6d43; }
.flash-error { background: #fdeceb; color: #b3382c; }

/* ------------------------------------------------------------------ */
/* Karten & Kennzahlen                                                 */
/* ------------------------------------------------------------------ */

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 16px; margin-bottom: 24px; }
.card {
    padding: 22px;
    background: var(--panel);
    border: 1px solid rgba(15, 32, 54, .06);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: box-shadow .2s ease, transform .2s ease;
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.card-value { font-size: 30px; font-weight: 800; margin: 4px 0; letter-spacing: -.01em; }
.card-hint { color: var(--muted); font-size: 13px; margin: 0; }

.next-termin {
    margin-bottom: 24px;
    background: linear-gradient(135deg, #eef4fb 0%, #dbeafe 100%);
    border: 1px solid rgba(37, 99, 235, .12);
}
.next-termin h2 { display: flex; align-items: center; gap: 12px; font-size: 26px; margin: 4px 0 6px; }
.next-termin h2 a { color: var(--ink); text-decoration: none; }
.next-termin h2 a:hover { color: var(--accent-dark); }
.next-termin-cancelled { background: linear-gradient(135deg, #fdeceb 0%, #fbdcd2 100%); border-color: rgba(179, 56, 44, .18); }
.next-termin-details { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 10px; color: var(--ink); font-size: 14px; font-weight: 600; }

/* ------------------------------------------------------------------ */
/* Tabellen                                                            */
/* ------------------------------------------------------------------ */

.table-scroll { overflow-x: auto; }
.data-table { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 14px; }
.data-table th, .data-table td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--line); }
.data-table th { color: var(--muted); font: 600 11px 'DM Mono', monospace; letter-spacing: .05em; text-transform: uppercase; }
.data-table tbody tr { transition: background-color .12s ease; }
.data-table tbody tr:hover { background: rgba(37, 99, 235, .04); }
.data-table tbody tr:last-child td { border-bottom: 0; }
.data-table a { color: var(--accent-dark); text-decoration: none; font-weight: 600; }
.data-table a:hover { text-decoration: underline; }
.row-actions { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.guthaben-form { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.guthaben-form .amount-input { width: 80px; }
.kontostand-actions { flex-direction: column; align-items: flex-start; gap: 8px; min-width: 220px; }

.empty-hint { color: var(--muted); padding: 20px 0; }

/* ------------------------------------------------------------------ */
/* Badges                                                              */
/* ------------------------------------------------------------------ */

.badge { display: inline-block; padding: 4px 11px; border-radius: 999px; font-size: 11px; font-weight: 700; letter-spacing: .02em; background: var(--line); color: var(--muted); }
.badge-ok { background: #e6f7ec; color: #1f6d43; }
.badge-warn { background: #fdeceb; color: #b3382c; }
.badge-info { background: var(--mint); color: var(--accent-dark); }

/* ------------------------------------------------------------------ */
/* Formulare                                                           */
/* ------------------------------------------------------------------ */

.form-grid { display: grid; grid-template-columns: 220px 1fr; gap: 14px 16px; align-items: center; max-width: 640px; }
.form-grid label { font-weight: 600; font-size: 14px; }
.form-grid input, .form-grid select {
    padding: 11px 14px;
    border: 1px solid var(--line);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--ink);
    font: 15px 'Manrope', sans-serif;
    outline: none;
    transition: border-color .15s ease, box-shadow .15s ease;
}
.form-grid input:focus, .form-grid select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(37, 99, 235, .14); }
.form-grid .checkbox-label { grid-column: 2; display: flex; align-items: center; gap: 8px; font-weight: 400; }
.checkbox-list { grid-column: 2; display: grid; gap: 6px; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fff; max-height: 200px; overflow-y: auto; }
.checkbox-list .checkbox-label { grid-column: auto; }
.stufen-liste { grid-column: 2; display: grid; gap: 8px; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fff; }
.stufen-zeile { display: flex; align-items: center; gap: 10px; }
.stufen-label { width: 64px; flex: 0 0 auto; font-size: 13px; color: var(--muted); }
.stufen-zeile .amount-input { width: 120px; }

button.primary {
    border: 0;
    cursor: pointer;
    font: 700 14px 'Manrope', sans-serif;
    padding: 13px 28px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--accent-light), var(--accent-dark));
    color: #fff;
    box-shadow: var(--shadow-sm);
}
button.primary:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }
button.primary:active { transform: translateY(0); }
.form-grid button.primary { grid-column: 2; justify-self: start; margin-top: 6px; }

.filter-form { display: flex; align-items: center; gap: 10px; margin-bottom: 18px; font-size: 14px; }
.filter-form select { padding: 9px 12px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fff; }

.amount-input { width: 90px; padding: 7px 9px; border: 1px solid var(--line); border-radius: var(--radius-sm); }

.link-button { background: none; border: 0; padding: 0; color: var(--accent-dark); font-weight: 600; font-size: 13px; cursor: pointer; text-decoration: underline; }
.link-button.danger { color: #b3382c; }

.btn-settle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border: 0;
    cursor: pointer;
    font: 700 13px 'Manrope', sans-serif;
    padding: 9px 16px;
    border-radius: var(--radius-sm);
    background: var(--accent);
    color: #fff;
    box-shadow: var(--shadow-sm);
    white-space: nowrap;
    transition: background-color .15s ease, box-shadow .15s ease, transform .1s ease;
}
.btn-settle:hover { background: var(--accent-dark); box-shadow: var(--shadow-md); }
.btn-settle:active { transform: translateY(1px); }

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    cursor: pointer;
    font: 700 13px 'Manrope', sans-serif;
    padding: 8px 15px;
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--accent-dark);
    border: 1px solid var(--line);
    white-space: nowrap;
    transition: background-color .15s ease, border-color .15s ease, box-shadow .15s ease;
}
.btn-secondary:hover { background: rgba(37, 99, 235, .06); border-color: var(--accent); }
.btn-secondary:active { background: rgba(37, 99, 235, .1); }

.text-link { color: var(--accent-dark); text-decoration: none; font-weight: 600; font-size: 14px; }
.text-link:hover { text-decoration: underline; }

.subnav { display: flex; gap: 6px; margin-bottom: 28px; flex-wrap: wrap; }
.subnav a { color: var(--muted); text-decoration: none; font-weight: 600; font-size: 14px; padding: 8px 14px; border-radius: 999px; transition: color .15s ease, background-color .15s ease; }
.subnav a:hover { color: var(--ink); background: rgba(37, 99, 235, .06); }
.subnav a.active { color: #fff; background: var(--accent); }

.toggle-group { display: flex; gap: 6px; }
.toggle-btn { background: none; border: 1px solid var(--line); color: var(--muted); font-weight: 600; font-size: 13px; padding: 6px 12px; border-radius: 999px; cursor: pointer; transition: color .15s ease, background-color .15s ease, border-color .15s ease; }
.toggle-btn:hover { color: var(--ink); }
.toggle-btn.active { color: #fff; background: var(--accent); border-color: var(--accent); }

.form-actions { margin-top: 18px; }

.auth-shell { max-width: 420px; margin: 40px auto 0; text-align: center; }
.auth-logo { margin-bottom: 20px; filter: drop-shadow(0 8px 20px rgba(29, 78, 216, .25)); }
.auth-shell .intro { margin-left: auto; margin-right: auto; }
.auth-shell .form-grid { text-align: left; }
.auth-board .form-grid { grid-template-columns: 1fr; max-width: none; }
.auth-board button.primary { grid-column: 1; justify-self: stretch; text-align: center; }

@media (max-width: 720px) {
    .cards { grid-template-columns: 1fr; }
    .form-grid { grid-template-columns: 1fr; }
    .form-grid .checkbox-label, .form-grid button.primary, .checkbox-list, .stufen-liste { grid-column: 1; }
    .data-table { display: block; overflow-x: auto; white-space: nowrap; }
    .table-scroll .data-table:not(.kontostand-table) { display: table; white-space: normal; }

    /* Kontostand-Tabelle: als Karten stapeln statt horizontal scrollen */
    .kontostand-table, .kontostand-table tbody, .kontostand-table tr, .kontostand-table td { display: block; width: 100%; }
    .kontostand-table thead { display: none; }
    .kontostand-table tbody tr { padding: 14px 0; }
    .kontostand-table tbody tr + tr { border-top: 1px solid var(--line); }
    .kontostand-table td { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 6px 0; border-bottom: 0; white-space: normal; }
    .kontostand-table td[data-label]::before {
        content: attr(data-label);
        color: var(--muted);
        font: 600 11px 'DM Mono', monospace;
        letter-spacing: .05em;
        text-transform: uppercase;
        flex: 0 0 auto;
    }
    .kontostand-actions { flex-direction: column; align-items: stretch; min-width: 0; padding-top: 10px; }
    .kontostand-actions .guthaben-form { width: 100%; }
    .kontostand-actions .amount-input { flex: 1 1 auto; }
}

@media (max-width: 560px) {
    .shell { padding-top: 32px; }
    .hero { margin-bottom: 32px; }
    .board-heading { align-items: flex-start; flex-direction: column; gap: 10px; }
    .board { padding: 18px; }
    .guthaben-form { width: 100%; }
    .guthaben-form .amount-input { flex: 1 1 70px; }
}