:root {
  --bg: #f4efe5;
  --bg-strong: #efe4d1;
  --surface: rgba(255, 252, 247, 0.82);
  --surface-strong: #fff9f1;
  --border: rgba(66, 48, 33, 0.12);
  --ink: #24160d;
  --muted: #655242;
  --accent: #bc5a32;
  --accent-deep: #8c3516;
  --teal: #0f7d78;
  --shadow: 0 24px 60px rgba(80, 47, 22, 0.12);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --font-body: "Avenir Next", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font-body);
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(15, 125, 120, 0.15), transparent 28%),
    radial-gradient(circle at top right, rgba(188, 90, 50, 0.14), transparent 24%),
    linear-gradient(180deg, #f8f3eb 0%, #f1e7d7 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.28) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.28) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.3), transparent 85%);
}

.page-shell {
  width: min(1380px, calc(100% - 32px));
  margin: 0 auto;
  padding: 36px 0 48px;
}

.hero {
  display: grid;
  grid-template-columns: 1.45fr 1fr;
  gap: 28px;
  align-items: stretch;
  margin-bottom: 28px;
}

.hero-copy,
.hero-architecture,
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.hero-copy {
  padding: 34px;
  position: relative;
  overflow: hidden;
}

.hero-copy::after {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 999px;
  right: -72px;
  bottom: -72px;
  background: radial-gradient(circle, rgba(15, 125, 120, 0.22), transparent 70%);
}

.eyebrow,
.section-kicker {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 12px;
  color: var(--teal);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 4.6rem);
  line-height: 0.96;
  max-width: 11ch;
}

.hero-text {
  margin: 18px 0 0;
  max-width: 60ch;
  color: var(--muted);
  line-height: 1.7;
  font-size: 1rem;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 28px;
}

.hero-metrics article {
  padding: 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 249, 241, 0.88);
  border: 1px solid rgba(66, 48, 33, 0.08);
}

.hero-metrics span {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.hero-metrics p {
  margin: 0;
  color: var(--muted);
}

.hero-architecture {
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 18px;
}

.architecture-card {
  padding: 18px 20px;
  border-radius: var(--radius-md);
  background: var(--surface-strong);
  border: 1px solid rgba(66, 48, 33, 0.1);
}

.architecture-card span {
  display: block;
  color: var(--muted);
  font-size: 0.84rem;
  margin-bottom: 6px;
}

.architecture-card strong {
  font-size: 1.1rem;
}

.architecture-amazon {
  transform: rotate(-2deg);
}

.architecture-hub {
  background: linear-gradient(135deg, rgba(188, 90, 50, 0.18), rgba(15, 125, 120, 0.16));
}

.architecture-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.architecture-line {
  height: 44px;
  margin-left: 36px;
  border-left: 2px dashed rgba(36, 22, 13, 0.18);
}

.dashboard {
  display: grid;
  grid-template-columns: 1.25fr 0.95fr;
  gap: 28px;
}

.panel {
  padding: 28px;
  animation: fade-up 500ms ease both;
}

.panel-secondary,
.panel-tertiary {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.panel-tertiary {
  grid-column: 1 / -1;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 22px;
}

.panel-header.compact {
  margin-bottom: 0;
}

.panel-header h2,
.section-divider h3,
.connector-card h3 {
  margin: 0;
  font-size: 1.55rem;
}

.button {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 14px 18px;
  font: inherit;
  cursor: pointer;
  transition: transform 180ms ease, box-shadow 180ms ease, background-color 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-solid {
  color: #fff;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  box-shadow: 0 14px 24px rgba(140, 53, 22, 0.22);
}

.button-ghost {
  color: var(--ink);
  background: rgba(255, 250, 243, 0.92);
  border: 1px solid rgba(66, 48, 33, 0.12);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.field-group,
.field-inline {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.field-inline {
  flex-direction: row;
  gap: 14px;
}

.field-inline > .field-group {
  flex: 1;
}

.field-span-2,
.section-divider {
  grid-column: 1 / -1;
}

.section-divider {
  padding-top: 12px;
  margin-top: 4px;
  border-top: 1px solid rgba(66, 48, 33, 0.08);
}

label {
  font-size: 0.94rem;
  font-weight: 600;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid rgba(66, 48, 33, 0.14);
  border-radius: var(--radius-sm);
  background: rgba(255, 252, 247, 0.92);
  padding: 13px 14px;
  font: inherit;
  color: var(--ink);
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid rgba(15, 125, 120, 0.22);
  border-color: rgba(15, 125, 120, 0.6);
}

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

.checkbox-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  padding: 16px;
  border: 1px solid rgba(66, 48, 33, 0.08);
  border-radius: var(--radius-md);
  background: rgba(255, 249, 241, 0.7);
}

.checkbox-grid label,
.toggle {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 500;
}

.checkbox-grid input,
.toggle input {
  width: 18px;
  height: 18px;
  margin: 0;
}

.connector-stack {
  display: grid;
  gap: 18px;
}

.connector-card {
  padding: 22px;
  border-radius: var(--radius-md);
  background: rgba(255, 249, 241, 0.84);
  border: 1px solid rgba(66, 48, 33, 0.09);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.connector-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.manifest-intro {
  margin: -6px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.manifest-output {
  margin: 0;
  padding: 20px;
  border-radius: var(--radius-md);
  min-height: 360px;
  overflow: auto;
  background: #1f160f;
  color: #f8efdf;
  font-family: "SFMono-Regular", "Menlo", monospace;
  line-height: 1.55;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  max-width: min(420px, calc(100% - 36px));
  padding: 16px 18px;
  border-radius: 16px;
  background: rgba(28, 24, 19, 0.92);
  color: #fff8ec;
  box-shadow: 0 18px 34px rgba(0, 0, 0, 0.24);
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity 220ms ease, transform 220ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1100px) {
  .hero,
  .dashboard {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 20px, 100%);
    padding-top: 18px;
  }

  .hero-copy,
  .hero-architecture,
  .panel {
    padding: 20px;
  }

  .hero h1 {
    max-width: 12ch;
    font-size: clamp(2rem, 11vw, 3rem);
  }

  .hero-metrics,
  .form-grid,
  .checkbox-grid,
  .architecture-grid,
  .field-inline {
    grid-template-columns: 1fr;
    flex-direction: column;
  }

  .panel-header,
  .connector-head {
    flex-direction: column;
    align-items: stretch;
  }

  .button {
    width: 100%;
  }
}