:root {
    --ink: #1B2430;
    --ink-soft: #5C6B7A;
    --surface: #FFFFFF;
    --canvas: #F5F7F8;
    --line: #D7DEE3;
    --accent: #0E7C7B;
    --accent-dark: #0B6362;
    --ok: #1D7A3E;
    --bad: #B3261E;
    --mono: ui-monospace, "SF Mono", "Cascadia Mono", Consolas, monospace;
}

* {
    box-sizing: border-box;
    margin: 0;
}

body {
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
    background: var(--canvas);
    color: var(--ink);
    min-height: 100vh;
    padding: 48px 16px;
}

main {
    max-width: 560px;
    margin: 0 auto;
}

header {
    margin-bottom: 28px;
}

header h1 {
    font-size: 1.45rem;
    font-weight: 650;
    letter-spacing: -0.01em;
}

header p {
    color: var(--ink-soft);
    margin-top: 6px;
    font-size: 0.95rem;
}

.step {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 16px;
}

.step[data-disabled="true"] {
    opacity: 0.45;
    pointer-events: none;
}

.step-label {
    display: flex;
    align-items: baseline;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 650;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--ink-soft);
    margin-bottom: 12px;
}

.step-label .num {
    font-family: var(--mono);
    color: var(--accent);
}

label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    margin: 14px 0 6px;
}

label:first-of-type {
    margin-top: 0;
}

input[type="text"],
textarea {
    width: 100%;
    font: inherit;
    color: inherit;
    padding: 10px 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
}

input[type="text"]:focus-visible,
textarea:focus-visible,
button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 1px;
    border-color: var(--accent);
}

textarea {
    min-height: 110px;
    resize: vertical;
}

/* Autocomplete */
.search-wrap {
    position: relative;
}

#customerSearch {
    font-size: 1.05rem;
    padding: 13px 14px;
}

.suggestions {
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + 4px);
    z-index: 10;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 8px 24px rgba(27, 36, 48, 0.12);
    max-height: 320px;
    overflow-y: auto;
    display: none;
}

.suggestions.open {
    display: block;
}

.suggestion {
    display: flex;
    gap: 12px;
    align-items: baseline;
    padding: 10px 14px;
    cursor: pointer;
    border: 0;
    width: 100%;
    background: transparent;
    font: inherit;
    text-align: left;
}

.suggestion+.suggestion {
    border-top: 1px solid var(--canvas);
}

.suggestion.active,
.suggestion:hover {
    background: #E9F3F3;
}

.suggestion .cnum {
    font-family: var(--mono);
    font-size: 0.85rem;
    color: var(--accent);
    white-space: nowrap;
}

.suggestion-empty {
    padding: 12px 14px;
    color: var(--ink-soft);
    font-size: 0.9rem;
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 14px 0 0;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
}

.checkbox-row input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent);
    cursor: pointer;
}

.field-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.field-group[hidden] {
    display: none;
}

.field-toggle {
    font: inherit;
    font-size: 0.85rem;
    padding: 6px 12px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--surface);
    color: var(--ink-soft);
    cursor: pointer;
}

.field-toggle:hover {
    border-color: var(--accent);
}

.field-toggle[aria-pressed="true"] {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

/* Gewaehlter Kunde als Chip */
.customer-chip {
    display: none;
    align-items: center;
    gap: 12px;
    background: #E9F3F3;
    border: 1px solid var(--accent);
    border-radius: 8px;
    padding: 12px 14px;
}

.customer-chip.visible {
    display: flex;
}

.customer-chip .cnum {
    font-family: var(--mono);
    font-weight: 600;
    color: var(--accent);
}

.customer-chip .cname {
    flex: 1;
    font-weight: 600;
}

.customer-chip button {
    border: 0;
    background: transparent;
    color: var(--ink-soft);
    font: inherit;
    font-size: 0.85rem;
    cursor: pointer;
    text-decoration: underline;
}

.actions {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-top: 18px;
}

.submit {
    font: inherit;
    font-weight: 650;
    color: #fff;
    background: var(--accent);
    border: 0;
    border-radius: 8px;
    padding: 11px 22px;
    cursor: pointer;
}

.submit:hover {
    background: #0B6362;
}

.submit:disabled {
    background: var(--line);
    color: var(--ink-soft);
    cursor: not-allowed;
}

.feedback {
    margin-top: 14px;
    padding: 12px 14px;
    border-radius: 8px;
    font-size: 0.92rem;
    display: none;
}

.feedback.error {
    display: block;
    background: #FBEAE9;
    color: var(--bad);
    border: 1px solid #EBC4C1;
}

.feedback.success {
    display: block;
    background: #E8F3EC;
    color: var(--ok);
    border: 1px solid #BFDEC9;
}

.feedback a {
    color: inherit;
    font-weight: 650;
}

.feedback .mono {
    font-family: var(--mono);
}

footer {
    margin-top: 20px;
    font-size: 0.8rem;
    color: var(--ink-soft);
}