:root {
  color-scheme: light;
  --bg: #f5f7fb;
  --panel: #ffffff;
  --text: #172033;
  --muted: #657085;
  --line: #d8deea;
  --primary: #1677ff;
  --primary-dark: #0f5fd6;
  --danger: #c2410c;
  --ok-bg: #eefbf4;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.page {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  width: min(100%, 1180px);
  margin: 0 auto;
  padding: 20px clamp(12px, 3vw, 32px) 36px;
}

.page-header {
  display: grid;
  gap: 14px;
  align-items: end;
}

.tab-switcher {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  width: min(100%, 420px);
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #eef2f7;
}

.tab-button {
  min-height: 40px;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  font-size: 14px;
}

.tab-button.is-active {
  background: var(--primary);
  color: #ffffff;
}

.tab-panel[hidden] {
  display: none;
}

.account-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.panel,
.guide {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
}

.guide {
  min-width: 0;
}

.brand {
  color: var(--primary);
  font-size: 15px;
  font-weight: 700;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  margin-top: 10px;
  font-size: 26px;
  line-height: 1.25;
}

h2 {
  font-size: 18px;
}

.subtle {
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.form {
  margin-top: 22px;
}

label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 700;
}

.input-row {
  display: grid;
  grid-template-columns: 1fr 96px;
  gap: 10px;
}

input,
button {
  min-height: 48px;
  border-radius: 8px;
  font: inherit;
}

input {
  width: 100%;
  border: 1px solid var(--line);
  padding: 0 14px;
  font-size: 17px;
  outline: none;
}

input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(22, 119, 255, 0.14);
}

button {
  border: 0;
  background: var(--primary);
  color: #ffffff;
  font-weight: 700;
}

button:active {
  background: var(--primary-dark);
}

button:disabled {
  opacity: 0.65;
}

.message {
  margin-top: 16px;
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--danger);
  background: #fff7ed;
  font-size: 14px;
  line-height: 1.5;
}

.result {
  margin-top: 18px;
  border: 1px solid #bfe8cf;
  border-radius: 8px;
  background: var(--ok-bg);
  overflow: hidden;
}

.field {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr) 64px;
  align-items: center;
  gap: 10px;
  padding: 14px;
  border-bottom: 1px solid #ccefd9;
}

.field:last-child {
  border-bottom: 0;
}

.field span {
  color: var(--muted);
}

.field strong {
  min-width: 0;
  overflow-wrap: anywhere;
  font-size: 14px;
  line-height: 1.45;
}

.copy-button {
  min-height: 36px;
  border-radius: 8px;
  padding: 0 10px;
  font-size: 13px;
  white-space: nowrap;
}

.guide h2 {
  margin-bottom: 12px;
}

.guide img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--line);
}

.step-list {
  display: grid;
  gap: 16px;
  counter-reset: login-step;
  margin: 0;
  padding-left: 0;
  list-style: none;
}

.step-item {
  counter-increment: login-step;
}

.step-item p {
  position: relative;
  min-height: 28px;
  padding-left: 34px;
  color: var(--muted);
  line-height: 1.6;
}

.step-item p::before {
  content: counter(login-step);
  position: absolute;
  left: 0;
  top: 1px;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--primary);
  color: #ffffff;
  font-size: 13px;
  font-weight: 700;
}

.login-guide a {
  color: var(--primary);
}

.plugin-panel {
  max-width: 820px;
}

.plugin-list {
  display: grid;
  gap: 18px;
}

.plugin-item {
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.plugin-item:first-child {
  border-top: 0;
  padding-top: 0;
}

.plugin-item h3 {
  margin: 0;
  font-size: 17px;
}

.plugin-item a {
  color: var(--primary);
}

.plugin-steps {
  margin: 12px 0 0;
  padding-left: 22px;
  color: var(--muted);
  line-height: 1.7;
}

.visual-steps {
  display: grid;
  gap: 16px;
  padding-left: 0;
  list-style: none;
}

.visual-step p {
  color: var(--muted);
  line-height: 1.6;
}

.step-image {
  display: grid;
  place-items: center;
  width: 100%;
  aspect-ratio: 16 / 9;
  margin-top: 10px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
}

.step-image img {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  border-radius: 0;
  cursor: pointer;
  object-fit: contain;
}

.step-image img:hover {
  opacity: 0.94;
}

.image-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: clamp(14px, 3vw, 32px);
  background: rgba(15, 23, 42, 0.78);
}

.image-modal[hidden] {
  display: none;
}

.image-modal img {
  display: block;
  max-width: min(100%, 1180px);
  max-height: 88vh;
  border-radius: 8px;
  background: #ffffff;
  object-fit: contain;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}

.image-modal-close {
  position: fixed;
  top: 16px;
  right: 16px;
  min-height: 40px;
  border-radius: 8px;
  padding: 0 14px;
  background: #ffffff;
  color: var(--text);
  font-size: 14px;
}

.plugin-step-image {
  margin-top: 10px;
}

@media (min-width: 900px) {
  .page-header {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .account-layout {
    grid-template-columns: minmax(360px, 420px) minmax(0, 1fr);
    gap: 20px;
    align-items: start;
  }

  .claim-panel {
    position: sticky;
    top: 20px;
  }
}

@media (min-width: 1160px) {
  .page {
    width: min(100%, 1280px);
  }

  .account-layout {
    grid-template-columns: minmax(380px, 440px) minmax(0, 1fr);
    gap: 24px;
  }

  .step-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .visual-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .page {
    padding-left: 12px;
    padding-right: 12px;
  }

  .panel,
  .guide {
    padding: 18px;
  }

  .input-row {
    grid-template-columns: 1fr;
  }

  .field {
    grid-template-columns: 68px minmax(0, 1fr);
    align-items: start;
  }

  .copy-button {
    grid-column: 2;
    width: 64px;
  }

  .step-list {
    gap: 14px;
  }
}