/*
 * oliverstokeshughes.com
 * Phase 2 structural prototype
 *
 * This stylesheet establishes the basic visual character and responsive
 * geometry of the existing site. Gallery refinement and final typography
 * remain later design decisions.
 */

:root {
  --colour-header: #333c8b;
  --colour-page: #333333;
  --colour-footer: #000000;
  --colour-text: #f4f4f2;
  --colour-muted: #d2d2ce;
  --colour-rule: #858585;

  --font-body:
    "Helvetica Neue",
    Helvetica,
    Arial,
    sans-serif;

  --font-heading:
    "Helvetica Neue",
    Helvetica,
    Arial,
    sans-serif;

  --page-gutter: clamp(1.25rem, 5vw, 4rem);
  --text-width: 44rem;
  --gallery-width: 74rem;

  --section-space: clamp(4.5rem, 9vw, 8rem);
}

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

html {
  background: var(--colour-page);
  color-scheme: dark;
  font-size: 100%;
}

body {
  margin: 0;
  background: var(--colour-page);
  color: var(--colour-text);
  font-family: var(--font-body);
  font-size: clamp(0.95rem, 0.9rem + 0.15vw, 1.05rem);
  font-weight: 400;
  line-height: 1.6;
  letter-spacing: 0.025em;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

a:hover {
  text-decoration-thickness: 0.12em;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid currentColor;
  outline-offset: 4px;
}


/* Header */

.site-header {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: clamp(5rem, 8vw, 7rem);
  padding: 1.5rem var(--page-gutter);
  background: var(--colour-header);
}

.site-title {
  margin: 0;
  font-family: var(--font-heading);
  font-size: clamp(1.15rem, 0.9rem + 0.9vw, 2rem);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: 0.08em;
  text-align: center;
  text-transform: uppercase;
  white-space: nowrap;
}

.site-title a {
  text-decoration: none;
}


/* Shared content geometry */

.introduction,
.practice,
.wider-practice,
.portraiture,
.biography,
.enquiries {
  width: min(
    calc(100% - (2 * var(--page-gutter))),
    var(--text-width)
  );
  margin-inline: auto;
}

.introduction {
  padding-top: clamp(3rem, 7vw, 6rem);
}

.practice,
.wider-practice,
.portraiture,
.biography,
.enquiries {
  margin-top: var(--section-space);
}

p {
  margin-block: 0 1.15em;
}

h2 {
  margin: 0 0 1.75rem;
  font-family: var(--font-heading);
  font-size: clamp(0.95rem, 0.9rem + 0.2vw, 1.1rem);
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: 0.09em;
  text-align: center;
  text-transform: uppercase;
}

cite {
  font-style: italic;
}


/* Artwork baseline
 *
 * This is intentionally simple. Phase 3 will determine the final gallery
 * system and the visual-weight treatment of individual works.
 */

.artworks {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(3.5rem, 7vw, 7rem) clamp(2rem, 6vw, 5rem);

  width: min(
    calc(100% - (2 * var(--page-gutter))),
    var(--gallery-width)
  );

  margin: clamp(4rem, 8vw, 7rem) auto 0;
}

.artwork {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  margin: 0;
}

.artwork img {
  width: 100%;
  object-fit: contain;
}

.artwork figcaption {
  margin-top: 0.75rem;
  color: var(--colour-muted);
  font-size: 0.8rem;
  line-height: 1.45;
  letter-spacing: 0.035em;
  text-align: center;
}


/* Enquiry form */

.enquiry-form {
  margin-top: 2.75rem;
}

.form-field {
  margin: 0 0 2rem;
}

.form-field label {
  display: block;
  margin-bottom: 0.45rem;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
}

.form-field input,
.form-field textarea {
  display: block;
  width: 100%;
  padding: 0.65rem 0;
  border: 0;
  border-bottom: 1px solid var(--colour-rule);
  border-radius: 0;
  background: transparent;
  color: var(--colour-text);
  font: inherit;
}

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

.enquiry-form button {
  margin-top: 1.5rem;
  padding: 0.75rem 1.75rem;
  border: 1px solid var(--colour-muted);
  background: transparent;
  color: var(--colour-text);
  font: inherit;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}


/* Footer */

.site-footer {
  margin-top: clamp(6rem, 12vw, 11rem);
  padding:
    clamp(3rem, 6vw, 5rem)
    var(--page-gutter);
  background: var(--colour-footer);
}

.site-footer > * {
  width: min(100%, var(--text-width));
  margin-inline: auto;
}

.site-footer > p {
  margin-bottom: 2.5rem;
  text-align: center;
}

.copyright {
  color: var(--colour-muted);
  font-size: 0.75rem;
  line-height: 1.6;
}


/* Small screens */

@media (max-width: 700px) {
  :root {
    --page-gutter: 1.25rem;
    --section-space: 4.5rem;
  }

  .site-header {
    min-height: 5rem;
  }

  .site-title {
    font-size: clamp(1rem, 5vw, 1.3rem);
  }

  .introduction {
    padding-top: 3rem;
  }

  .artworks {
    grid-template-columns: 1fr;
    gap: 4rem;
    margin-top: 4rem;
  }

  .artwork {
    width: 100%;
  }

  .artwork img {
    width: auto;
    max-width: 100%;
    max-height: 75svh;
  }

  .enquiry-form button {
    min-height: 44px;
  }
}


/* Respect operating-system reduced-motion preferences. */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }
}

/* Improve line breaking in longer prose without inserting manual breaks. */

.introduction p,
.practice p,
.wider-practice p,
.portraiture p,
.biography p,
.enquiries > p,
.copyright p {
  text-wrap: pretty;
}