/* =============================================================
   Base — Reset, Typography, Media, Buttons, Forms
   ============================================================= */

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

html {
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--bar-total) + 16px);
  color-scheme: light;
  hanging-punctuation: first last;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  padding: 0;
  padding-top: var(--bar-preview);
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--fs-16);
  line-height: var(--lh-body);
  min-height: 100vh;
  overflow-x: clip;
}

h1, h2, h3, h4, h5, h6, p, ul, ol, dl, figure, blockquote {
  margin: 0;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 500;
  font-optical-sizing: auto;
  line-height: var(--lh-heading);
  letter-spacing: var(--tracking-tight);
  color: inherit;
  text-wrap: balance;
}

h1 {
  font-size: var(--fs-60);
  line-height: var(--lh-display);
  font-weight: 500;
  font-feature-settings: "liga", "kern";
}

h2 {
  font-size: var(--fs-48);
  font-feature-settings: "kern", "liga";
}

h3 {
  font-size: var(--fs-30);
  font-feature-settings: "kern", "liga";
}

h4 {
  font-size: var(--fs-24);
  font-feature-settings: "kern", "liga";
}

h5, h6 {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: var(--fs-16);
  letter-spacing: var(--tracking-mid);
}

p {
  color: var(--text-muted);
  font-size: var(--fs-18);
  text-wrap: pretty;
}

p.lead {
  font-size: var(--fs-20);
  color: var(--ink-700);
}

small { font-size: var(--fs-14); }

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

/* Links */
a {
  color: inherit;
  text-decoration-color: color-mix(in oklab, currentColor 25%, transparent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--dur-1) var(--ease-out),
              text-decoration-color var(--dur-2) var(--ease-out);
}
a:hover {
  color: var(--accent-hover);
  text-decoration-color: currentColor;
}

/* Media */
img, svg, video, canvas, iframe {
  display: block;
  max-width: 100%;
  height: auto;
}

/* Selection */
::selection {
  background: var(--sun-500);
  color: var(--ink-950);
}

/* Focus */
:focus { outline: none; }
:focus-visible {
  outline: none;
  box-shadow: var(--ring);
  border-radius: var(--radius-4);
}

/* Skip link */
.skip-link {
  position: fixed;
  top: calc(var(--bar-preview) + 8px);
  left: 8px;
  padding: 10px 16px;
  background: var(--ink-950);
  color: var(--text-on-dark);
  border-radius: var(--radius-8);
  font-weight: 600;
  z-index: var(--z-modal);
  transform: translateY(-200%);
  transition: transform var(--dur-2) var(--ease-out);
  text-decoration: none;
}
.skip-link:focus-visible {
  transform: translateY(0);
  box-shadow: var(--ring-on-dark);
}

/* Buttons — modular system */
.btn {
  --btn-bg: var(--sun-500);
  --btn-fg: var(--ink-950);
  --btn-border: transparent;
  --btn-bg-hover: var(--sun-600);
  --btn-fg-hover: var(--ink-950);
  --btn-shadow: 0 1px 0 rgba(11,13,16,.08), 0 6px 20px rgba(200,150,20,.15);

  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 12px 22px;
  border-radius: var(--radius-full);
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid var(--btn-border);
  font-family: var(--font-sans);
  font-size: var(--fs-16);
  font-weight: 600;
  letter-spacing: -0.005em;
  text-decoration: none;
  cursor: pointer;
  box-shadow: var(--btn-shadow);
  transition:
    background-color var(--dur-2) var(--ease-out),
    color var(--dur-2) var(--ease-out),
    transform var(--dur-1) var(--ease-out),
    box-shadow var(--dur-2) var(--ease-out),
    border-color var(--dur-2) var(--ease-out);
  will-change: transform;
}

.btn:hover {
  background: var(--btn-bg-hover);
  color: var(--btn-fg-hover);
  transform: translateY(-1px);
  box-shadow: 0 2px 0 rgba(11,13,16,.10), 0 12px 32px rgba(200,150,20,.22);
  text-decoration: none;
}
.btn:active { transform: translateY(0); }

.btn .btn__arrow {
  transition: transform var(--dur-2) var(--ease-out);
}
.btn:hover .btn__arrow { transform: translateX(3px); }

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--ink-900);
  --btn-border: var(--ink-800);
  --btn-bg-hover: var(--ink-950);
  --btn-fg-hover: var(--stone-100);
  --btn-shadow: none;
}
.btn--ghost-on-dark {
  --btn-bg: transparent;
  --btn-fg: var(--text-on-dark);
  --btn-border: rgba(255,255,255,.24);
  --btn-bg-hover: rgba(255,255,255,.08);
  --btn-fg-hover: var(--text-on-dark);
  --btn-shadow: none;
}

.btn--sm {
  min-height: 40px;
  padding: 8px 16px;
  font-size: var(--fs-14);
}

.btn--icon-only {
  min-width: 48px;
  padding: 0;
  border-radius: var(--radius-full);
}

/* Text link with arrow */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--ink-900);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
  transition: color var(--dur-1) var(--ease-out),
              border-color var(--dur-2) var(--ease-out);
}
.link-arrow::after {
  content: "→";
  transition: transform var(--dur-2) var(--ease-out);
}
.link-arrow:hover {
  color: var(--accent-hover);
  border-color: currentColor;
}
.link-arrow:hover::after { transform: translateX(3px); }

.link-arrow--on-dark {
  color: var(--sun-500);
}
.link-arrow--on-dark:hover {
  color: var(--sun-300);
}

/* Forms */
label {
  display: block;
  font-size: var(--fs-14);
  font-weight: 600;
  color: var(--ink-800);
  margin-bottom: 6px;
  letter-spacing: -0.005em;
}
label .required { color: var(--sun-600); }

.input,
input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
textarea,
select {
  display: block;
  width: 100%;
  padding: 12px 14px;
  font-family: var(--font-sans);
  font-size: var(--fs-16);
  color: var(--ink-900);
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius-8);
  transition: border-color var(--dur-2) var(--ease-out),
              box-shadow var(--dur-2) var(--ease-out),
              background-color var(--dur-2) var(--ease-out);
  min-height: 48px;
}

textarea {
  min-height: 130px;
  resize: vertical;
  line-height: 1.55;
}

.input:hover,
input:hover,
textarea:hover,
select:hover { border-color: var(--border-strong); }

.input:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  border-color: var(--sun-500);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--sun-500) 24%, transparent);
  background: var(--paper);
}

::placeholder { color: var(--ink-400); opacity: 1; }

/* Checkbox — custom */
.checkbox {
  display: inline-flex;
  gap: 12px;
  align-items: flex-start;
  cursor: pointer;
  font-size: var(--fs-14);
  color: var(--ink-700);
  line-height: 1.45;
}
.checkbox input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 20px; height: 20px;
  min-width: 20px;
  margin: 0;
  border: 1.5px solid var(--ink-500);
  border-radius: var(--radius-4);
  background: var(--paper);
  display: grid;
  place-items: center;
  transition: background var(--dur-1) var(--ease-out),
              border-color var(--dur-1) var(--ease-out);
  cursor: pointer;
}
.checkbox input[type="checkbox"]:checked {
  background: var(--ink-950);
  border-color: var(--ink-950);
}
.checkbox input[type="checkbox"]:checked::after {
  content: "";
  width: 10px; height: 6px;
  border-left: 2px solid var(--sun-500);
  border-bottom: 2px solid var(--sun-500);
  transform: rotate(-45deg) translate(1px, -1px);
}
.checkbox a { color: var(--ink-900); text-decoration: underline; }

/* Utility: eyebrow labels */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--ink-500);
  font-weight: 500;
}
.eyebrow::before {
  content: "";
  width: 24px; height: 1px;
  background: currentColor;
  opacity: .5;
}
.eyebrow--on-dark { color: var(--sun-300); }
.eyebrow--centered::before { display: none; }

/* Section separators */
hr.rule {
  border: none;
  height: 1px;
  background: var(--border);
  margin: 0;
}