:root {
    --bg: #f4f5f7;
    --card-bg: #ffffff;
    --text: #1c1e21;
    --muted: #6b7280;
    --border: #e2e4e8;
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --danger: #dc2626;
    --positive: #16a34a;
    --radius: 10px;
    font-size: 16px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    -webkit-font-smoothing: antialiased;
}

/* --- Login --- */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 16px;
}
.login-box {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 32px 24px;
    width: 100%;
    max-width: 360px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}
.login-box h1 { font-size: 1.25rem; margin: 0 0 20px; text-align: center; }
.login-box form { display: flex; flex-direction: column; gap: 12px; }
.login-box label { font-size: 0.85rem; color: var(--muted); }
.login-box input {
    width: 100%; padding: 12px; margin-top: 4px;
    border: 1px solid var(--border); border-radius: 8px; font-size: 1rem;
}
.fehler { color: var(--danger); font-size: 0.9rem; text-align: center; }
.login-version { text-align: center; color: var(--muted); font-size: 0.75rem; margin: 16px 0 0; }

/* --- Topbar --- */
.topbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px;
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}
.topbar h1 { font-size: 1.1rem; margin: 0; display: flex; align-items: center; gap: 8px; }
.version-badge {
    font-size: 0.7rem; font-weight: 600; color: var(--muted);
    background: #eef0f3; padding: 2px 7px; border-radius: 999px;
}
.topbar-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.app-footer {
    max-width: 1100px; margin: 8px auto 24px; padding: 0 16px;
    font-size: 0.8rem; color: var(--muted);
}
.app-footer summary { cursor: pointer; }
.app-footer ul { margin: 8px 0 0; padding-left: 18px; }
.app-footer li { margin-bottom: 4px; }

.btn {
    display: inline-block;
    padding: 10px 16px;
    border-radius: 8px;
    border: none;
    font-size: 0.9rem;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: #eef0f3; color: var(--text); }
.btn-danger { background: var(--danger); color: #fff; }

/* --- Zwei-Spalten-Layout --- */
.columns {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding: 16px;
    max-width: 1100px;
    margin: 0 auto;
}
@media (min-width: 700px) {
    .columns { flex-direction: row; align-items: flex-start; }
    .column { flex: 1; min-width: 0; }
}

.column h2 {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--muted);
    margin: 0 0 10px;
}

.positions-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.position-item {
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 10px;
    align-items: center;
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 14px;
    cursor: pointer;
}
.position-item:hover, .position-item:focus { border-color: var(--primary); outline: none; }
.pos-name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pos-rendite { color: var(--positive); font-weight: 600; font-variant-numeric: tabular-nums; }
.pos-kurs { color: var(--muted); font-variant-numeric: tabular-nums; }
.leer { color: var(--muted); padding: 12px; font-style: italic; }

/* --- Modal --- */
.modal-overlay {
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.45);
    display: flex; align-items: flex-end; justify-content: center;
    z-index: 100;
    padding: 0;
}
.modal-overlay[hidden] { display: none; }
@media (min-width: 700px) {
    .modal-overlay { align-items: center; padding: 16px; }
}
.modal {
    background: var(--card-bg);
    width: 100%;
    max-width: 480px;
    max-height: 92vh;
    overflow-y: auto;
    border-radius: var(--radius) var(--radius) 0 0;
    padding: 20px;
}
@media (min-width: 700px) {
    .modal { border-radius: var(--radius); }
}
.modal-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 16px;
}
.modal-header h2 { font-size: 1.1rem; margin: 0; }
.modal-close {
    background: none; border: none; font-size: 1.5rem; line-height: 1;
    cursor: pointer; color: var(--muted);
}

#form-position, #modal-kurse .modal { display: flex; flex-direction: column; }
#form-position label {
    display: block; font-size: 0.85rem; color: var(--muted); margin-bottom: 12px;
}
#form-position input, #form-position select {
    display: block; width: 100%; margin-top: 4px;
    padding: 10px; border: 1px solid var(--border); border-radius: 8px; font-size: 1rem;
    background: #fff; color: var(--text);
}
.feld-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; align-items: start; }

.kennzahlen-box {
    background: #f8fafc;
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 0.85rem;
    color: var(--muted);
    margin: 4px 0 14px;
    display: grid;
    gap: 4px;
}
.kennzahlen-box strong { color: var(--text); }

.modal-fehler { color: var(--danger); font-size: 0.9rem; }
.modal-actions { display: flex; justify-content: space-between; gap: 10px; margin-top: 4px; }

.kurse-tabelle { width: 100%; border-collapse: collapse; margin-bottom: 16px; }
.kurse-tabelle th, .kurse-tabelle td {
    text-align: left; padding: 8px 6px; border-bottom: 1px solid var(--border); font-size: 0.9rem;
}
#form-neue-waehrung { display: grid; grid-template-columns: 1fr 1fr auto; gap: 8px; }
#form-neue-waehrung input {
    padding: 10px; border: 1px solid var(--border); border-radius: 8px; font-size: 0.9rem;
}