:root {
  --color-ink: #0B0F19;
  --color-slate: #1E293B;
  --color-paper: #F8FAFC;
  --color-muted: #CBD5E1;
  --color-emerald: #10B981;
  --color-emerald-deep: #059669;
  --color-line: #334155;
  --color-danger: #F87171;

  --font-body: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-heading: Manrope, Inter, system-ui, sans-serif;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lead: clamp(1.125rem, 1.4vw, 1.25rem);
  --text-subheading: clamp(1.25rem, 2vw, 1.5rem);
  --text-section: clamp(1.75rem, 3vw, 2.5rem);
  --text-page: clamp(2rem, 4vw, 3.5rem);
  --text-display: clamp(2.25rem, 5vw, 4.5rem);

  --leading-tight: 1.02;
  --leading-heading: 1.1;
  --leading-body: 1.65;
  --leading-small: 1.45;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --container-max: 75rem;
  --container-padding: 1.5rem;
  --reading-max: 46rem;

  --radius-sm: 0.25rem;
  --radius-md: 0.375rem;
  --radius-chip: 1.125rem;

  --border: 1px solid var(--color-line);
  --shadow-elevated: 0 16px 40px rgba(0, 0, 0, 0.28);

  --transition-fast: 160ms ease;
  --transition-base: 200ms ease;
}

@media (max-width: 48rem) {
  :root {
    --container-padding: 1.25rem;
  }
}

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

html {
  min-width: 0;
  overflow-x: clip;
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  min-width: 0;
  min-height: 100vh;
  margin: 0;
  overflow-x: clip;
  background: var(--color-ink);
  color: var(--color-paper);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 400;
  line-height: var(--leading-body);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.menu-open {
  overflow: hidden;
}

main,
header,
footer,
section,
article,
aside,
nav,
div,
form,
fieldset,
table {
  min-width: 0;
}

img,
picture,
svg,
video,
canvas,
audio,
iframe {
  display: block;
  max-width: 100%;
}

img,
video {
  height: auto;
}

svg {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
}

a {
  color: inherit;
  overflow-wrap: anywhere;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:not([class]) {
  color: var(--color-paper);
  text-decoration-color: var(--color-emerald);
}

a:not([class]):hover {
  color: var(--color-emerald);
}

button,
input,
select,
textarea {
  color: inherit;
  font: inherit;
}

button,
[type="button"],
[type="submit"],
[type="reset"] {
  cursor: pointer;
}

button:disabled,
input:disabled,
select:disabled,
textarea:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

textarea {
  min-height: 8rem;
  resize: vertical;
}

table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
}

th,
td {
  overflow-wrap: anywhere;
  text-align: left;
  vertical-align: top;
}

caption {
  padding-block: var(--space-3);
  color: var(--color-muted);
  text-align: left;
}

hr {
  height: 1px;
  margin-block: var(--space-8);
  border: 0;
  background: var(--color-line);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin-block: 0 var(--space-4);
  color: var(--color-paper);
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.03em;
  overflow-wrap: anywhere;
  text-wrap: balance;
}

h1 {
  font-size: var(--text-display);
  line-height: var(--leading-tight);
}

h2 {
  font-size: var(--text-page);
  line-height: 1.06;
}

h3 {
  font-size: var(--text-section);
  line-height: var(--leading-heading);
}

h4 {
  font-size: var(--text-subheading);
  font-weight: 600;
  line-height: 1.25;
}

h5,
h6 {
  font-size: var(--text-base);
  font-weight: 600;
  line-height: 1.3;
}

p {
  margin-block: 0 var(--space-4);
  color: var(--color-muted);
  overflow-wrap: anywhere;
}

ul,
ol {
  margin-block: 0 var(--space-4);
  padding-inline-start: 1.25rem;
}

li {
  overflow-wrap: anywhere;
}

blockquote {
  margin-block: 0 var(--space-6);
  padding-inline-start: var(--space-6);
  border-inline-start: 2px solid var(--color-emerald);
  color: var(--color-paper);
  font-family: var(--font-heading);
  font-size: var(--text-subheading);
  line-height: 1.4;
}

figure {
  margin: 0 0 var(--space-6);
}

figcaption {
  margin-top: var(--space-3);
  color: var(--color-muted);
  font-size: var(--text-sm);
  line-height: var(--leading-small);
}

dl {
  margin-block: 0 var(--space-6);
}

dt {
  color: var(--color-paper);
  font-weight: 600;
}

dd {
  margin: 0 0 var(--space-4);
  color: var(--color-muted);
}

small {
  font-size: var(--text-sm);
  line-height: var(--leading-small);
}

strong {
  color: var(--color-paper);
  font-weight: 600;
}

em {
  font-style: italic;
}

mark {
  padding-inline: 0.15em;
  background: rgba(16, 185, 129, 0.2);
  color: var(--color-paper);
}

code,
kbd,
pre,
samp {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

code,
kbd {
  padding: 0.12em 0.35em;
  border: var(--border);
  border-radius: var(--radius-sm);
  background: var(--color-slate);
  font-size: 0.9em;
}

pre {
  max-width: 100%;
  margin-block: 0 var(--space-6);
  padding: var(--space-4);
  overflow: auto;
  border: var(--border);
  border-radius: var(--radius-sm);
  background: var(--color-slate);
  color: var(--color-paper);
}

::selection {
  background: var(--color-emerald);
  color: var(--color-ink);
}

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline-color: var(--color-emerald);
}

.container {
  width: min(100% - (var(--container-padding) * 2), var(--container-max));
  margin-inline: auto;
}

.reading-width {
  max-width: var(--reading-max);
}

.section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
}

.section--compact {
  padding-block: clamp(var(--space-12), 5vw, var(--space-24));
}

.surface-slate {
  background: var(--color-slate);
}

.surface-paper {
  background: var(--color-paper);
  color: var(--color-ink);
}

.surface-paper h1,
.surface-paper h2,
.surface-paper h3,
.surface-paper h4,
.surface-paper h5,
.surface-paper h6,
.surface-paper strong,
.surface-paper dt {
  color: var(--color-ink);
}

.surface-paper p,
.surface-paper dd,
.surface-paper figcaption,
.surface-paper caption {
  color: #475569;
}

.surface-paper a:not([class]) {
  color: var(--color-ink);
}

.eyebrow {
  margin: 0 0 var(--space-3);
  color: var(--color-emerald);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-transform: uppercase;
}

.lead {
  color: var(--color-paper);
  font-size: var(--text-lead);
  line-height: 1.55;
}

.meta {
  color: var(--color-muted);
  font-size: var(--text-sm);
  font-weight: 500;
  line-height: var(--leading-small);
}

.tabular {
  font-variant-numeric: tabular-nums;
}

.stack {
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-4);
}

.stack--tight {
  gap: var(--space-2);
}

.stack--compact {
  gap: var(--space-3);
}

.stack--spacious {
  gap: var(--space-6);
}

.cluster {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.cluster--compact {
  gap: var(--space-2);
}

.cluster--spacious {
  gap: var(--space-6);
}

.cluster > * {
  min-width: 0;
}

.content-list {
  display: grid;
  gap: var(--space-3);
  margin-block: 0 var(--space-6);
  padding-inline-start: 1.25rem;
}

.card,
.panel {
  min-width: 0;
  padding: var(--space-6);
  border: var(--border);
  border-radius: var(--radius-sm);
  background: var(--color-slate);
}

.panel {
  border-radius: var(--radius-md);
}

.card > :last-child,
.panel > :last-child,
.stack > :last-child,
.content-group > :last-child {
  margin-block-end: 0;
}

.divider {
  height: 1px;
  margin: 0;
  border: 0;
  background: var(--color-line);
}

.status {
  display: inline-flex;
  align-items: center;
  min-height: 1.5rem;
  padding-inline: var(--space-2);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-chip);
  color: var(--color-muted);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.2;
  text-transform: uppercase;
}

.button {
  display: inline-flex;
  min-width: 0;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.7rem 1rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-paper);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition:
    background-color var(--transition-base),
    border-color var(--transition-base),
    color var(--transition-base),
    transform var(--transition-fast);
}

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

.button:active {
  transform: translateY(0);
}

.button--primary {
  border-color: var(--color-emerald);
  background: var(--color-emerald);
  color: var(--color-ink);
}

.button--primary:hover,
.button--primary:active {
  border-color: var(--color-emerald-deep);
  background: var(--color-emerald-deep);
  color: var(--color-paper);
}

.button--secondary {
  border-color: var(--color-line);
  background: transparent;
  color: var(--color-paper);
}

.button--secondary:hover,
.button--secondary:active {
  border-color: var(--color-emerald);
  color: var(--color-emerald);
}

.button--full {
  width: 100%;
}

label {
  display: inline-block;
  margin-bottom: var(--space-2);
  color: var(--color-paper);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1.35;
}

fieldset {
  margin: 0 0 var(--space-6);
  padding: var(--space-4);
  border: var(--border);
  border-radius: var(--radius-sm);
}

legend {
  padding-inline: var(--space-2);
  color: var(--color-paper);
  font-size: var(--text-sm);
  font-weight: 600;
}

input,
select,
textarea {
  width: 100%;
  min-height: 2.75rem;
  padding: 0.65rem 0.75rem;
  border: var(--border);
  border-radius: var(--radius-sm);
  background: var(--color-ink);
  color: var(--color-paper);
  line-height: 1.4;
  transition:
    border-color var(--transition-base),
    background-color var(--transition-base),
    box-shadow var(--transition-base);
}

select {
  cursor: pointer;
}

input::placeholder,
textarea::placeholder {
  color: #94A3B8;
  opacity: 1;
}

input:hover,
select:hover,
textarea:hover {
  border-color: #475569;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-emerald);
  outline: 2px solid var(--color-emerald);
  outline-offset: 2px;
}

input[type="checkbox"],
input[type="radio"] {
  width: 1.125rem;
  min-width: 1.125rem;
  min-height: 1.125rem;
  margin: 0;
  accent-color: var(--color-emerald);
}

input[type="file"] {
  padding: var(--space-2);
}

input[type="file"]::file-selector-button {
  margin-right: var(--space-3);
  padding: 0.45rem 0.65rem;
  border: 0;
  border-radius: var(--radius-sm);
  background: var(--color-emerald);
  color: var(--color-ink);
  cursor: pointer;
  font: inherit;
  font-size: var(--text-sm);
  font-weight: 600;
}

.required {
  color: var(--color-emerald);
}

.field-error {
  margin-top: var(--space-2);
  margin-bottom: 0;
  color: var(--color-danger);
  font-size: var(--text-sm);
  line-height: var(--leading-small);
}

[aria-invalid="true"] {
  border-color: var(--color-danger);
}

[aria-invalid="true"]:focus {
  outline-color: var(--color-danger);
}

.form-note {
  margin-top: var(--space-3);
  color: var(--color-muted);
  font-size: var(--text-sm);
  line-height: var(--leading-small);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: var(--space-3);
  left: var(--space-3);
  transform: translateY(-200%);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--color-emerald);
  color: var(--color-ink);
  font-weight: 600;
  text-decoration: none;
  transition: transform var(--transition-fast);
}

.skip-link:focus {
  transform: translateY(0);
}

@media (max-width: 48rem) {
  .section {
    padding-block: clamp(3.5rem, 12vw, 4.5rem);
  }

  .section--compact {
    padding-block: clamp(2.5rem, 9vw, 4rem);
  }

  .card,
  .panel {
    padding: var(--space-4);
  }

  .button {
    min-height: 2.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}