/*
 * SPDX-FileCopyrightText: 2025 Vecto <https://github.com/VectoDE>
 *
 * SPDX-License-Identifier: Apache-2.0
 */

:root {
  color-scheme: light dark;
  --paper: #e8edf1;
  --sheet: #f6f8fa;
  --ink: #13212c;
  --muted: #4b5a66;
  --rail: #a3b1bc;
  --line: #c9d3db;
  --accent: #0b5d86;
  --accent-ink: #ffffff;
  --ok: #1d7448;
  --warn: #8a5a00;
  --problem: #b3261e;
  --field: #ffffff;
  --code-bg: #10202b;
  --code-ink: #dbe7ef;
  --focus: #0b5d86;
  --sans: 'Segoe UI Variable Text', 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
  --mono: ui-monospace, 'Cascadia Mono', 'SFMono-Regular', Menlo, Consolas, monospace;
  --radius: 4px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #0e171e;
    --sheet: #14212a;
    --ink: #e2eaf0;
    --muted: #a3b2bd;
    --rail: #4c5d6a;
    --line: #2b3b47;
    --accent: #6cb6e0;
    --accent-ink: #08141c;
    --ok: #6fcf9a;
    --warn: #e8b85c;
    --problem: #ff8a80;
    --field: #0f1a21;
    --code-bg: #0a1218;
    --focus: #6cb6e0;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 16px/1.55 var(--sans);
  -webkit-text-size-adjust: 100%;
}

a {
  color: var(--accent);
  text-underline-offset: 0.18em;
}

code,
pre {
  font-family: var(--mono);
  font-size: 0.875rem;
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.skip {
  position: absolute;
  left: 1rem;
  top: -4rem;
  padding: 0.5rem 0.75rem;
  background: var(--accent);
  color: var(--accent-ink);
  z-index: 10;
}

.skip:focus {
  top: 1rem;
}

/* Header */
.masthead {
  border-bottom: 1px solid var(--line);
  background: var(--sheet);
}

.masthead__inner,
.intro,
.layout,
.footer {
  max-width: 76rem;
  margin: 0 auto;
  padding-inline: 1rem;
}

.masthead__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  padding-block: 0.875rem;
}

.brand {
  margin: 0;
  font-weight: 650;
  letter-spacing: -0.01em;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.25rem;
}

nav a {
  color: var(--ink);
  text-decoration: none;
  padding-block: 0.5rem;
}

nav a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.intro {
  padding-block: 2.5rem 2.75rem;
}

h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.75rem, 1.2rem + 2.4vw, 2.75rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 700;
  max-width: 22ch;
  text-wrap: balance;
}

.intro p {
  margin: 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 1.0625rem;
}

/* Layout: form with the pipeline rail, output beside it */
.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.5rem;
  padding-block: 2.5rem 4rem;
}

@media (min-width: 64rem) {
  .layout {
    grid-template-columns: minmax(0, 1fr) minmax(22rem, 26rem);
    align-items: start;
  }
}

.rail-label {
  margin: 2rem 0 1rem;
  color: var(--muted);
  font-size: 0.9375rem;
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

/* The rail: one line through every step, like the order the updater runs them in. */
.steps::before {
  content: '';
  position: absolute;
  left: 0.9375rem;
  top: 1rem;
  bottom: 1rem;
  width: 2px;
  background: var(--rail);
}

.step {
  position: relative;
  padding: 0 0 2.25rem 3.25rem;
}

.step h2,
.extra h2 {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0 0 0.25rem;
  font-size: 1.375rem;
  line-height: 1.25;
  font-weight: 650;
}

.marker {
  position: absolute;
  left: 0;
  top: -0.125rem;
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  border: 2px solid var(--rail);
  background: var(--paper);
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
  transition:
    border-color 160ms ease-out,
    background-color 160ms ease-out,
    color 160ms ease-out;
}

[data-state='problem'] > h2 .marker {
  border-color: var(--problem);
  background: var(--problem);
  color: var(--paper);
}

[data-state='warning'] > h2 .marker {
  border-color: var(--warn);
  color: var(--warn);
}

.extra {
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
}

.extra[data-state='problem'] h2 {
  color: var(--problem);
}

.hint {
  margin: 0 0 1rem;
  color: var(--muted);
  font-size: 0.9375rem;
  max-width: 62ch;
}

/* Fields */
.fields {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1rem 1.25rem;
}

@media (min-width: 40rem) {
  .fields {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .field--wide {
    grid-column: 1 / -1;
  }
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  min-width: 0;
}

.field > span,
legend {
  font-size: 0.9375rem;
  font-weight: 600;
}

.field small {
  color: var(--muted);
  font-size: 0.8125rem;
  line-height: 1.45;
}

input[type='text'],
input[type='url'],
input[type='number'],
select,
textarea {
  width: 100%;
  min-height: 2.75rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--rail);
  border-radius: var(--radius);
  background: var(--field);
  color: var(--ink);
  font: inherit;
}

input::placeholder,
textarea::placeholder {
  color: var(--muted);
  opacity: 0.75;
}

input[aria-invalid='true'],
select[aria-invalid='true'] {
  border-color: var(--problem);
  box-shadow: inset 3px 0 0 var(--problem);
}

textarea {
  font-family: var(--mono);
  font-size: 0.875rem;
  resize: vertical;
}

fieldset {
  margin: 0;
  padding: 0;
  border: 0;
  min-width: 0;
}

.choice {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.5rem;
}

.choice legend {
  margin-bottom: 0.375rem;
  width: 100%;
}

.choice label,
.check {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  min-height: 2.75rem;
  cursor: pointer;
}

input[type='checkbox'],
input[type='radio'] {
  width: 1.25rem;
  height: 1.25rem;
  margin: 0;
  flex: none;
  accent-color: var(--accent);
}

button {
  min-height: 2.75rem;
  padding: 0.5rem 1.125rem;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--accent-ink);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 120ms ease-out;
}

button:hover {
  background: color-mix(in srgb, var(--accent) 85%, var(--ink));
}

button.quiet {
  background: transparent;
  color: var(--accent);
}

button.quiet:hover {
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

/* Import */
.import {
  border-bottom: 1px solid var(--line);
  padding-bottom: 1rem;
}

.import summary {
  cursor: pointer;
  font-weight: 600;
  min-height: 2.75rem;
  display: flex;
  align-items: center;
}

.import label {
  display: block;
  margin: 0.5rem 0 0.375rem;
  font-size: 0.9375rem;
}

.import button {
  margin-top: 0.75rem;
}

.import .hint {
  margin-top: 0.75rem;
}

/* Notifications */
.notification {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.75rem 1.25rem;
  padding: 1rem 0;
  border-bottom: 1px dashed var(--line);
}

@media (min-width: 40rem) {
  .notification {
    grid-template-columns: 12rem minmax(0, 1fr);
  }

  .notification .remove {
    justify-self: start;
  }
}

#add-notification {
  margin-top: 1rem;
}

/* Output */
.output {
  min-width: 0;
}

@media (min-width: 64rem) {
  .output {
    position: sticky;
    top: 1rem;
    max-height: calc(100vh - 2rem);
    overflow: auto;
  }
}

.output__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.25rem 1rem;
}

.output h2 {
  margin: 0;
  font-family: var(--mono);
  font-size: 1rem;
  font-weight: 600;
}

output.hint,
output.status {
  display: block;
}

.status {
  margin: 0;
  font-weight: 650;
  font-size: 0.9375rem;
}

.status[data-state='idle'] {
  color: var(--muted);
  font-weight: 500;
}

.status[data-state='ok'] {
  color: var(--ok);
}

.status[data-state='warning'] {
  color: var(--warn);
}

.status[data-state='problem'] {
  color: var(--problem);
}

.issues {
  list-style: none;
  margin: 0.75rem 0 0;
  padding: 0;
}

.issue button {
  display: block;
  width: 100%;
  min-height: 0;
  padding: 0.5rem 0.75rem 0.5rem 1.75rem;
  position: relative;
  border: 0;
  border-radius: 4px;
  background: color-mix(in srgb, var(--problem) 8%, transparent);
  color: var(--ink);
  font-weight: 400;
  font-size: 0.875rem;
  text-align: left;
}

.issue button::before {
  content: '';
  position: absolute;
  left: 0.75rem;
  top: 1.05em;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--problem);
}

.issue--warning button::before {
  background: var(--warn);
}

.issue--warning button {
  background: color-mix(in srgb, var(--warn) 9%, transparent);
}

.issue + .issue {
  margin-top: 0.25rem;
}

.issue code {
  font-weight: 600;
}

.json,
.commands {
  margin: 0.75rem 0 0;
  padding: 1rem;
  border-radius: var(--radius);
  background: var(--code-bg);
  color: var(--code-ink);
  line-height: 1.5;
  overflow: auto;
  white-space: pre;
}

/* Wraps instead of scrolling, so the whole file is readable without a scrollable region. */
.json {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.next {
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.next h3 {
  margin: 0;
  font-size: 1rem;
}

.next .hint {
  margin-top: 0.75rem;
}

.footer {
  padding-block: 1.5rem 2.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.875rem;
}

.footer p {
  margin: 0;
}

[hidden] {
  display: none !important;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
  }
}