/*
 * Corporate design tokens of Kremer IT-Service GmbH (see docs/03-design-styleguide.md).
 * Used for everything that is not covered by the MudBlazor theme:
 * status badges, portal footer, login page, logo wordmark.
 */
:root {
    --ks-primary: #0F9CD4;
    --ks-primary-dark: #0C7EAB;
    --ks-primary-light: #E3F4FB;
    --ks-dark: #2D2E33;
    --ks-text: #6C6D74;
    --ks-text-strong: #2D2E33;
    --ks-muted: #B4B5BA;
    --ks-bg: #FFFFFF;
    --ks-bg-page: #F4F6F8;
    --ks-bg-alt: #F7F8FA;
    --ks-border: #E7E9EE;
    --ks-success: #3DC372;
    --ks-warning: #FF9E45;
    --ks-error: #E5484D;

    --ks-font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --ks-radius: 12px;
    --ks-radius-sm: 8px;
    --ks-shadow: 0 1px 2px rgba(16, 24, 40, 0.05), 0 1px 3px rgba(16, 24, 40, 0.08);
    --ks-shadow-hover: 0 4px 12px rgba(16, 24, 40, 0.10);
}

html, body {
    font-family: var(--ks-font);
    font-size: 15px;
    line-height: 1.6;
    color: var(--ks-text);
    background-color: var(--ks-bg-page);
}

/* Softly rounded surfaces – modern SaaS look (was square). */
.mud-paper,
.mud-card,
.mud-dialog,
.mud-table-container {
    border-radius: var(--ks-radius) !important;
}

.mud-button-root,
.mud-input-control,
.mud-alert {
    border-radius: var(--ks-radius-sm) !important;
}

/* Logo wordmark: "Kremer" and "-Service" dark, "IT" in the brand blue. */
.ks-logo {
    font-family: var(--ks-font);
    font-size: 20px;
    font-weight: 400;
    letter-spacing: 0.5px;
    color: var(--ks-dark);
    text-decoration: none;
    white-space: nowrap;
}

.ks-logo__accent {
    color: var(--ks-primary);
}

.ks-logo--on-primary,
.ks-logo--on-primary .ks-logo__accent {
    color: #FFFFFF;
}

/* Image logo (docs/Logo.png). Scaled via height so it stays crisp on high-DPI screens. */
.ks-logo-img {
    display: block;
    height: 40px;
    width: auto;
    max-width: 100%;
}

/* Larger, centred on the anonymous account/login card. */
.ks-logo-img--account {
    height: 56px;
    margin-bottom: 4px;
}

/* CRM calendar: six-week month grid. Fixed row height keeps the grid stable across months. */
.ks-calendar {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 1px;
    background: var(--ks-border);
    border: 1px solid var(--ks-border);
}

.ks-calendar__head {
    background: var(--ks-bg-alt, #F7F7F7);
    padding: 6px 8px;
    font-size: 12px;
    font-weight: 600;
    text-align: center;
}

.ks-calendar__cell {
    background: #FFFFFF;
    min-height: 108px;
    padding: 4px 6px 6px;
    cursor: pointer;
    overflow: hidden;
}

.ks-calendar__cell--other {
    background: #FAFAFB;
    color: var(--ks-muted);
}

.ks-calendar__cell--today {
    box-shadow: inset 0 0 0 2px var(--ks-primary);
}

.ks-calendar__day {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 2px;
    min-height: 24px;
}

/* The add button stays out of the way until the day is hovered. */
.ks-calendar__add {
    opacity: 0;
    transition: opacity 120ms ease-in-out;
}

.ks-calendar__cell:hover .ks-calendar__add,
.ks-calendar__add:focus-visible {
    opacity: 1;
}

.ks-calendar__event {
    display: block;
    font-size: 12px;
    line-height: 1.35;
    padding: 2px 4px;
    margin-bottom: 2px;
    border-radius: var(--ks-radius-sm, 4px);
    background: rgba(15, 156, 212, 0.12);
    border-left: 3px solid var(--ks-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.ks-calendar__event--cancelled {
    text-decoration: line-through;
    background: rgba(0, 0, 0, 0.05);
    border-left-color: var(--ks-muted);
}

.ks-calendar__time {
    font-weight: 600;
    margin-right: 4px;
}

/* On a phone the seven columns become unreadable – fall back to a stacked list of days. */
@media (max-width: 700px) {
    .ks-calendar {
        grid-template-columns: 1fr;
    }

    .ks-calendar__head {
        display: none;
    }

    .ks-calendar__cell {
        min-height: 0;
    }

    .ks-calendar__cell--other {
        display: none;
    }
}

/* A card inside another card (e.g. the appointments block in the activity tab). */
.ks-card--nested {
    background: var(--ks-bg-alt);
    padding: 12px 16px;
}

.ks-strikethrough {
    text-decoration: line-through;
    color: var(--ks-muted);
}

/* Overview column of the prospect mask: contacts and the last sales notes at a glance. */
.ks-crm-summary__row + .ks-crm-summary__row {
    border-top: 1px solid var(--ks-border, #E5E5E5);
}

/* Notes can be long – show the first lines, the full text lives in the activity tab. */
.ks-crm-summary__note {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    white-space: pre-wrap;
}

/* Discreet in the app bar – small enough not to compete with the navigation. */
.ks-logo-img--appbar {
    height: 26px;
    margin-inline: 4px 12px;
}

/* The wide wordmark would squeeze the search field on narrow screens. */
@media (max-width: 700px) {
    .ks-logo-img--appbar {
        display: none;
    }
}

/* Audit log: keep the raw JSON details on one line, full text on hover. */
.ks-log-details {
    display: inline-block;
    max-width: 340px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    vertical-align: bottom;
    color: var(--ks-muted);
    font-size: 12px;
}

/* Header row below the top bar: logo left, page title right of it. */
.ks-header {
    display: flex;
    align-items: center;
    gap: 24px;
    height: 64px;
    padding: 0 24px;
    background-color: transparent;
}

.ks-header__title {
    font-size: 32px;
    font-weight: 400;
    color: var(--ks-primary);
    margin: 0;
}

/* Navigation: calm, normal-case labels with a rounded pill for the active item. */
.ks-nav {
    padding: 8px;
}

.ks-nav .mud-nav-link {
    font-size: 14px;
    letter-spacing: 0;
    text-transform: none;
    color: var(--ks-text);
    border-radius: var(--ks-radius-sm);
    margin: 2px 0;
}

.ks-nav .mud-nav-link:hover {
    background-color: var(--ks-bg-alt);
}

.ks-nav .mud-nav-link.active {
    color: var(--ks-primary-dark);
    background-color: var(--ks-primary-light);
    font-weight: 600;
}

.ks-nav .mud-nav-group .mud-nav-link {
    font-size: 13px;
}

/* Content area: centred, never wider than 1400 px. */
.ks-content {
    max-width: 1650px;
    margin: 0 auto;
    padding: 20px 16px;
    width: 100%;
}

/* Full-screen camera barcode scanner overlay. */
.ks-scan {
    position: fixed;
    inset: 0;
    z-index: 3000;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ks-scan__video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.ks-scan__frame {
    position: absolute;
    top: 50%;
    left: 50%;
    width: min(80vw, 420px);
    height: 180px;
    transform: translate(-50%, -50%);
    border: 3px solid #0F9CD4;
    border-radius: 10px;
    box-shadow: 0 0 0 100vmax rgba(0, 0, 0, 0.45);
}

.ks-scan__bar {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 16px calc(16px + env(safe-area-inset-right)) calc(16px + env(safe-area-inset-bottom)) calc(16px + env(safe-area-inset-left));
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    color: #fff;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7), transparent);
    font-size: 15px;
}

.ks-scan__cancel {
    appearance: none;
    border: 1px solid #fff;
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    border-radius: 8px;
    padding: 10px 18px;
    font-size: 15px;
    cursor: pointer;
}

/* Contract 12-month usage bar chart. */
.ks-usagechart {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    height: 220px;
    padding-top: 8px;
}

.ks-usagechart__col {
    flex: 1 1 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
    min-width: 0;
}

.ks-usagechart__value {
    font-size: 11px;
    color: var(--mud-palette-text-secondary, #6b6b70);
    height: 16px;
    line-height: 16px;
}

.ks-usagechart__track {
    flex: 1 1 auto;
    display: flex;
    align-items: flex-end;
    width: 100%;
}

.ks-usagechart__bar {
    width: 60%;
    margin: 0 auto;
    min-height: 2px;
    background: #0F9CD4;
    border-radius: 3px 3px 0 0;
    transition: height 0.2s ease;
}

.ks-usagechart__label {
    font-size: 11px;
    color: var(--mud-palette-text-secondary, #6b6b70);
    margin-top: 4px;
    white-space: nowrap;
}

.ks-usagechart__legend {
    font-size: 12px;
    color: var(--mud-palette-text-secondary, #6b6b70);
    margin-top: 8px;
}

/* Discreet application version, pinned to the bottom-right corner. */
.ks-version {
    position: fixed;
    right: 10px;
    bottom: 6px;
    z-index: 1300;
    font-size: 0.7rem;
    color: var(--ks-muted);
    letter-spacing: 0.02em;
    pointer-events: none;
    user-select: none;
}

/* Version note on the login card. */
.ks-login__version {
    display: block;
    margin-top: 16px;
    text-align: center;
    font-size: 0.7rem;
    color: var(--ks-muted);
}

.ks-card {
    background-color: var(--ks-bg);
    border: 1px solid var(--ks-border);
    border-radius: var(--ks-radius);
    box-shadow: var(--ks-shadow);
    padding: 24px;
}

/* Status and priority badges: always colour plus text (accessibility). */
.ks-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 12px;
    letter-spacing: 0.2px;
    color: #FFFFFF;
}

.ks-badge--new { background-color: var(--ks-primary); }
.ks-badge--in-progress { background-color: var(--ks-dark); }
.ks-badge--waiting { background-color: var(--ks-warning); }
.ks-badge--resolved { background-color: var(--ks-success); }
.ks-badge--closed { background-color: var(--ks-muted); }

.ks-badge--priority-low { background-color: var(--ks-muted); }
.ks-badge--priority-normal { background-color: var(--ks-primary); }
.ks-badge--priority-high { background-color: var(--ks-warning); }
.ks-badge--priority-critical { background-color: var(--ks-error); }

.ks-badge--active { background-color: var(--ks-success); }
.ks-badge--pending { background-color: var(--ks-warning); }
.ks-badge--inactive { background-color: var(--ks-muted); }

/* Anonymous account pages: centred card, no navigation. */
.ks-account {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
    background-color: var(--ks-bg-alt);
}

.ks-account__card {
    width: 100%;
    max-width: 420px;
    padding: 32px;
    background-color: var(--ks-bg);
    border: 1px solid var(--ks-border);
    box-shadow: var(--ks-shadow);
}

.ks-account__brand {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 24px;
}

.ks-account__product {
    font-size: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--ks-muted);
}

.ks-account__title {
    font-size: 24px;
    font-weight: 400;
    color: var(--ks-text-strong);
    margin: 0 0 8px 0;
}

.ks-account__text {
    margin: 0 0 24px 0;
}

.ks-account__error {
    margin-bottom: 16px;
    padding: 12px;
    border-left: 3px solid var(--ks-error);
    background-color: #FDECEC;
    color: var(--ks-error);
}

.ks-account__links {
    margin-top: 24px;
    font-size: 14px;
}

.ks-account__links a {
    color: var(--ks-primary);
}

/* Plain form fields – the account pages render statically, without MudBlazor interactivity. */
.ks-field {
    display: block;
    margin-bottom: 16px;
}

.ks-field--inline {
    display: flex;
    align-items: center;
    gap: 8px;
}

.ks-field__label {
    display: block;
    margin-bottom: 4px;
    font-size: 14px;
    color: var(--ks-text-strong);
}

.ks-field__input {
    width: 100%;
    padding: 10px 12px;
    font-family: var(--ks-font);
    font-size: 16px;
    color: var(--ks-text-strong);
    background-color: var(--ks-bg);
    border: 1px solid var(--ks-border);
    border-radius: var(--ks-radius-sm);
}

.ks-field__input:focus {
    outline: none;
    border-color: var(--ks-primary);
}

.ks-field__error {
    display: block;
    margin-top: 4px;
    font-size: 13px;
    color: var(--ks-error);
}

.ks-button {
    width: 100%;
    padding: 12px 16px;
    font-family: var(--ks-font);
    font-size: 14px;
    letter-spacing: 1px;
    color: #FFFFFF;
    background-color: var(--ks-primary);
    border: none;
    border-radius: var(--ks-radius-sm);
    cursor: pointer;
}

.ks-button:hover {
    background-color: var(--ks-primary-dark);
}

/* Second, quieter action on the login card (passkey sign-in next to the password form). */
.ks-button--secondary {
    color: var(--ks-primary);
    background-color: transparent;
    border: 1px solid var(--ks-primary);
}

.ks-button--secondary:hover {
    color: #FFFFFF;
    background-color: var(--ks-primary);
}

/* "oder" between the password form and the passkey button. */
.ks-account__divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 20px 0 12px;
    color: var(--ks-muted);
    font-size: 13px;
}

.ks-account__divider::before,
.ks-account__divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--ks-border);
}

/* Submit button that has to look like a menu entry (logout inside the user menu). */
.ks-linkbutton {
    padding: 0;
    font: inherit;
    color: inherit;
    background: none;
    border: none;
    cursor: pointer;
}

/* File upload: native input hidden, its label styled as a flat button. */
.ks-upload {
    display: inline-block;
}

.ks-upload input[type="file"] {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    overflow: hidden;
}

.ks-upload__button {
    display: inline-block;
    padding: 6px 16px;
    font-size: 14px;
    color: var(--ks-primary);
    border: 1px solid var(--ks-primary);
    cursor: pointer;
}

.ks-upload__button:hover {
    background-color: var(--ks-primary-light);
}

.ks-upload__button--disabled {
    color: var(--ks-muted);
    border-color: var(--ks-border);
    cursor: default;
}

/* Ticket history: comments as cards, system events as quiet one-liners. */
.ks-timeline {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.ks-comment {
    padding: 12px 16px;
    border: 1px solid var(--ks-border);
    background-color: var(--ks-bg);
}

/* Internal comments are visibly set apart – they must never reach the customer. */
.ks-comment--internal {
    background-color: #FFFBEA;
    border-left: 3px solid var(--ks-warning);
}

.ks-comment__meta {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
    font-size: 13px;
    color: var(--ks-muted);
}

.ks-comment__body {
    color: var(--ks-text-strong);
}

/* Rich-text comment content: keep embedded images within the card. */
.ks-comment__body img {
    max-width: 100%;
    height: auto;
}

.ks-comment__body p {
    margin: 0 0 8px 0;
}

.ks-comment__body p:last-child {
    margin-bottom: 0;
}

.ks-event {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding: 2px 4px;
    font-size: 13px;
    color: var(--ks-muted);
}

/* Right-hand side panel of the ticket detail page. */
.ks-sidepanel__row {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 8px 0;
    border-bottom: 1px solid var(--ks-border);
    font-size: 14px;
}

.ks-sidepanel__row:last-child {
    border-bottom: none;
}

.ks-sidepanel__label {
    color: var(--ks-muted);
}

.ks-sidepanel__value {
    color: var(--ks-text-strong);
    text-align: right;
}

.ks-overdue {
    color: var(--ks-error);
}

/* Dashboard tiles. */
.ks-tile {
    display: block;
    padding: 20px 24px;
    border: 1px solid var(--ks-border);
    border-radius: var(--ks-radius);
    background-color: var(--ks-bg);
    box-shadow: var(--ks-shadow);
    text-decoration: none;
    transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.ks-tile:hover {
    box-shadow: var(--ks-shadow-hover);
    transform: translateY(-2px);
}

.ks-tile__value {
    font-size: 32px;
    font-weight: 400;
    color: var(--ks-primary);
    line-height: 1.2;
}

.ks-tile__label {
    font-size: 12px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--ks-text);
}

/* Customer portal: blue bar, centred content, dark footer. */
.ks-portal {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    background-color: var(--ks-bg-alt);
}

.ks-portal__bar {
    display: flex;
    align-items: center;
    gap: 32px;
    height: 56px;
    padding: 0 24px;
    background-color: var(--ks-primary);
}

.ks-portal__nav {
    display: flex;
    gap: 24px;
    flex-grow: 1;
}

.ks-portal__nav a {
    color: #FFFFFF;
    text-decoration: none;
    font-size: 13px;
    letter-spacing: 1px;
    text-transform: uppercase;
    opacity: 0.85;
}

.ks-portal__nav a:hover,
.ks-portal__nav a.active {
    opacity: 1;
    border-bottom: 2px solid #FFFFFF;
}

.ks-portal__logout .ks-linkbutton {
    color: #FFFFFF;
    opacity: 0.85;
    font-size: 13px;
}

.ks-portal__content {
    flex-grow: 1;
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    padding: 24px;
}

.ks-portal__footer {
    background-color: var(--ks-dark);
    color: #FFFFFF;
    padding: 16px 24px;
    text-align: center;
    font-size: 13px;
}

.ks-portal__footer-accent {
    color: var(--ks-primary);
    margin-top: 4px;
}

/* Print view: hide the chrome, show only the ticket content. */
@media print {
    .mud-appbar,
    .mud-drawer,
    .ks-header,
    .ks-no-print,
    #blazor-error-ui {
        display: none !important;
    }

    .mud-main-content,
    .ks-content {
        margin: 0 !important;
        padding: 0 !important;
    }

    .ks-card {
        border: none !important;
        box-shadow: none !important;
        break-inside: avoid;
    }

    a {
        text-decoration: none;
        color: inherit;
    }
}

/* Empty states on placeholder and list pages. */
.ks-empty {
    color: var(--ks-muted);
    padding: 48px 0;
    text-align: center;
}

/* Page/section tabs: use the same readable, non-uppercase label style as the nav menu
   (the customer detail groups its sections into main tabs with sub-tabs). */
.ks-tabs .mud-tab {
    text-transform: none;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: normal;
}

/* Sub-tabs inside a group sit a little tighter and lighter than the group tabs. */
.ks-subtabs .mud-tab {
    font-weight: 400;
    min-height: 40px;
}

/* Kanban board: one column per workable status, cards dragged between them. */
.ks-board {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    overflow-x: auto;
    padding-bottom: 8px;
}

.ks-board__col {
    flex: 1 1 0;
    min-width: 260px;
    display: flex;
    flex-direction: column;
}

.ks-board__col-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 4px 8px;
}

.ks-board__count {
    font-size: 13px;
    font-weight: 600;
    color: var(--ks-muted);
}

.ks-board__zone {
    background-color: var(--ks-surface, #F6F7F9);
    border: 1px solid var(--ks-border);
    border-radius: var(--ks-radius);
    padding: 8px;
    min-height: 120px;
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* MudBlazor marks the hovered drop zone – highlight it. */
.ks-board__zone.mud-drop-zone-drag-block-inbound {
    border-color: var(--ks-primary);
    background-color: var(--ks-primary-light);
}

.ks-board__card {
    background-color: var(--ks-bg);
    border: 1px solid var(--ks-border);
    border-radius: var(--ks-radius);
    box-shadow: var(--ks-shadow);
    padding: 12px;
    cursor: pointer;
}

.ks-board__card:hover {
    border-color: var(--ks-primary);
}

.ks-board__card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
}

.ks-board__number {
    font-size: 12px;
    font-weight: 600;
    color: var(--ks-primary);
}

.ks-board__title {
    font-weight: 600;
    margin-bottom: 4px;
}

.ks-board__meta {
    font-size: 12px;
    color: var(--ks-muted);
}

.ks-board__meta-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 6px;
}

.ks-board__due {
    font-size: 12px;
    color: var(--ks-muted);
}

/* Inline PDF preview (import mask, attachments). */
.ks-pdf {
    border: 1px solid var(--ks-border);
    border-radius: var(--ks-radius-sm);
    overflow: hidden;
    background: var(--ks-bg-alt);
}

.ks-pdf__frame {
    display: block;
    width: 100%;
    height: 100%;
    border: 0;
}

/* On a phone a side-by-side preview would squeeze both halves; stack and shrink it instead. */
@media (max-width: 960px) {
    .ks-pdf {
        height: 380px !important;
    }
}

/* The preview follows while the long import form is scrolled. */
.ks-pdf-sticky {
    position: sticky;
    top: 76px;
}

@media (max-width: 1279px) {
    .ks-pdf-sticky {
        position: static;
    }
}

/* Spaltenfilter in Tabellenköpfen: schmal und unaufdringlich, damit die Kopfzeile
   nicht doppelt so hoch wird wie die Datenzeilen. */
.ks-column-filter {
    margin-top: 0.25rem;
    max-width: 12rem;
}

.ks-column-filter .mud-input-root {
    font-size: 0.8125rem;
    font-weight: 400;
}