:root {
  --bg: #f4f1ec;
  --surface: #ffffff;
  --surface-soft: #f7faf7;
  --ink: #202623;
  --muted: #65706b;
  --line: #dde5de;
  --accent: #286c60;
  --accent-strong: #173f39;
  --accent-soft: #e4f1ed;
  --warning-bg: #fff8ea;
  --warning: #8d5917;
  --danger: #a43b32;
  --shadow: 0 18px 48px rgba(32, 38, 35, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family:
    Inter, "PingFang SC", "Microsoft YaHei", system-ui, -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

button,
input {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

a {
  color: inherit;
}

.studio-shell {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  min-height: 100vh;
}

.studio-sidebar {
  border-right: 1px solid var(--line);
  background: #fbfaf7;
  padding: 24px;
}

.brand {
  display: flex;
  gap: 14px;
  align-items: center;
  margin-bottom: 26px;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 22px;
  font-weight: 800;
}

.brand strong {
  display: block;
  font-size: 18px;
  line-height: 1.25;
}

.brand small,
.hero p,
.section-heading p,
.notice,
.tool-card p,
.package-card span,
.account-box span {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.side-nav {
  display: grid;
  gap: 8px;
  margin-bottom: 18px;
}

.side-nav a,
.side-nav span {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 12px;
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
}

.side-nav .active {
  border-color: #b8d6ca;
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-weight: 700;
}

.side-panel,
.hero,
.section-block {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.side-panel {
  display: grid;
  gap: 14px;
  padding: 18px;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
}

h1,
h2,
h3,
p {
  margin: 0;
}

.side-panel h2 {
  font-size: 18px;
}

.login-box,
.account-box {
  display: grid;
  gap: 10px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
}

input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
  padding: 11px 12px;
  color: var(--ink);
  outline: none;
}

input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(40, 108, 96, 0.12);
}

.notice {
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface-soft);
  padding: 10px 12px;
}

.notice.active {
  border-color: #b8d6ca;
  background: #edf7f3;
  color: var(--accent-strong);
}

.notice.warning {
  border-color: #edcf9d;
  background: var(--warning-bg);
  color: var(--warning);
}

.notice.danger {
  border-color: #efb4ae;
  background: #fff1ef;
  color: var(--danger);
}

.account-box div {
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--surface-soft);
  padding: 10px;
}

.account-box strong {
  display: block;
  margin-top: 4px;
  color: var(--accent-strong);
  overflow-wrap: anywhere;
}

.studio-main {
  min-width: 0;
  padding: 26px;
}

.hero {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  align-items: flex-start;
  padding: 28px;
}

.hero h1 {
  margin-bottom: 10px;
  font-size: 34px;
  line-height: 1.18;
}

.hero p {
  max-width: 760px;
  font-size: 15px;
}

.hero-actions {
  display: grid;
  gap: 10px;
  min-width: 220px;
}

.primary,
.secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  border-radius: 7px;
  padding: 0 16px;
  font-weight: 800;
}

.primary {
  background: var(--accent);
  color: #fff;
}

.primary:hover {
  background: var(--accent-strong);
}

.secondary {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
}

.link {
  text-decoration: none;
}

.status-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 18px 0;
}

.status-strip div {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
  padding: 14px;
}

.status-strip span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.status-strip strong {
  display: block;
  margin-top: 6px;
  color: var(--accent-strong);
  overflow-wrap: anywhere;
}

.section-block {
  margin-top: 18px;
  padding: 22px;
}

.section-heading {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: end;
  margin-bottom: 16px;
}

.section-heading h2 {
  font-size: 24px;
}

.tool-grid,
.package-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.tool-card,
.package-card,
.empty {
  display: grid;
  gap: 18px;
  align-content: space-between;
  min-height: 230px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
  padding: 18px;
}

.active-tool {
  border-color: #9bc7b8;
  background: #edf7f3;
}

.tool-tag {
  display: inline-flex;
  width: fit-content;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-strong);
  padding: 5px 10px;
  font-size: 12px;
  font-weight: 800;
}

.tool-tag.muted {
  background: #edf1ee;
  color: var(--muted);
}

.tool-card h3,
.package-card h3 {
  margin-top: 14px;
  font-size: 20px;
}

.package-card strong {
  color: var(--accent-strong);
  font-size: 24px;
}

.empty {
  min-height: 120px;
  color: var(--muted);
}

@media (max-width: 1080px) {
  .studio-shell {
    grid-template-columns: 1fr;
  }

  .studio-sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .side-nav,
  .status-strip,
  .tool-grid,
  .package-grid {
    grid-template-columns: 1fr;
  }

  .hero,
  .section-heading {
    display: grid;
  }

  .hero-actions {
    min-width: 0;
  }
}

@media (max-width: 720px) {
  .studio-sidebar,
  .studio-main {
    padding: 16px;
  }

  .hero,
  .section-block {
    padding: 18px;
  }

  .hero h1 {
    font-size: 28px;
  }
}