:root {
  --color-surface-primary: #f9fafb;
  --color-surface-secondary: #f3f4f6;
  --color-text-primary: #111827;
  --color-accent-primary: #d97706;
  --color-accent-secondary: #15803d;
  --color-border: rgba(17,24,39,0.08);
  --color-text-inverse: #ffffff;

  --font-heading: 'DM Serif Display', serif;
  --font-body: 'Montserrat', 'Inter', Arial, sans-serif;

  --text-xxl: clamp(2rem, 4vw, 2.75rem);
  --text-xl: clamp(1.6rem, 3vw, 2rem);
  --text-lg: 1.5rem;
  --text-md: 1.125rem;
  --text-base: 1rem;
  --text-sm: 0.875rem;

  --space-0: 0;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 2rem;
  --space-4: 3rem;
  --space-5: 4.5rem;
  --space-6: 7rem;

  --container-max: 1200px;
  --container-pad: 1.5rem;

  --radius-sm: 4px;

  --transition-fast: 0.2s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-body);
  color: var(--color-text-primary);
  background: var(--color-surface-primary);
  -webkit-text-size-adjust: 100%;
}

body {
  line-height: 1.6;
  font-size: var(--text-base);
  min-height: 100vh;
}

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

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

button {
  cursor: pointer;
  border: none;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover,
a:focus-visible {
  text-decoration: underline;
}

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

ul {
  list-style: none !important;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  letter-spacing: 0.02em;
  line-height: 1.2;
  margin-bottom: var(--space-2);
}

h1 { font-size: var(--text-xxl); }
h2 { font-size: var(--text-xl); }
h3 { font-size: var(--text-lg); }
h4 { font-size: var(--text-md); }
h5 { font-size: var(--text-base); }
h6 { font-size: var(--text-sm); }

p {
  margin-bottom: var(--space-2);
}

ul,
ol {
  margin-bottom: var(--space-2);
}

blockquote {
  margin-bottom: var(--space-3);
  padding-left: var(--space-2);
  border-left: 2px solid var(--color-border);
}

section {
  padding-top: var(--space-4);
  padding-bottom: var(--space-4);
}

.container {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
  width: 100%;
}

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

.card {
  background: var(--color-surface-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-3);
}

.card > *:last-child {
  margin-bottom: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 1.25rem;
  padding: 0.6rem 1.2rem;
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.btn-primary {
  background: var(--color-accent-primary);
  color: var(--color-text-inverse);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: #b45309;
}

.btn-secondary {
  background: var(--color-accent-secondary);
  color: var(--color-text-inverse);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: #166534;
}

.flex-row {
  display: flex;
  flex-direction: row;
  gap: var(--space-2);
}

.flex-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.flex-wrap {
  flex-wrap: wrap;
}

.flex-row > *,
.flex-col > * {
  min-width: 0;
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.divider {
  width: 100%;
  height: 1px;
  background: var(--color-border);
}

input,
textarea {
  padding: 0.6rem 0.75rem;
}

textarea {
  resize: vertical;
}

label {
  font-size: var(--text-sm);
  margin-bottom: 0.25rem;
  display: inline-block;
}

form > *:last-child {
  margin-bottom: 0;
}

section > *:last-child,
div > *:last-child {
  margin-bottom: 0;
}
html, body {
  overflow-x: clip;
  max-width: 100%;
}

img, video, svg {
  max-width: 100%;
  height: auto;
}