/* =====================================================================
   Schalk Neethling — résumé
   Screen styles. Print rules live in print.css (linked with media="print").

   Methodology notes
   - Shared First: only viewport-agnostic declarations live outside media
     queries. Anything that changes per breakpoint sits inside a bounded
     range query.
   - BEM for class naming.
   - All colour, type, and spacing decisions are tokens on :root so the
     palette and scale can be re-skinned in one place.
   ===================================================================== */

/* ---------------------------------------------------------------------
   Design tokens
   --------------------------------------------------------------------- */
:root {
  color-scheme: light dark;

  /* Type families. System faces by default: zero network cost, prints
     well, and renders natively on every platform. To adopt a brand face,
     change these two custom properties and nothing else. */
  --font-display: "Iowan Old Style", "Palatino Linotype", Palatino, Charter,
    Cambria, Georgia, "Times New Roman", serif;
  --font-body: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial,
    sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", "JetBrains Mono",
    Menlo, Consolas, monospace;

  /* Type scale (major-third-ish), expressed in rem. */
  --step--1: 0.833rem;
  --step-0: 1rem;
  --step-1: 1.2rem;
  --step-2: 1.44rem;
  --step-3: 1.728rem;
  --step-4: 2.074rem;
  --step-5: clamp(2.4rem, 1.8rem + 3vw, 3.6rem);

  /* Spacing scale. */
  --space-3xs: 0.25rem;
  --space-2xs: 0.5rem;
  --space-xs: 0.75rem;
  --space-s: 1rem;
  --space-m: 1.5rem;
  --space-l: 2.25rem;
  --space-xl: 3.5rem;
  --space-2xl: 5rem;

  /* Layout. */
  --measure: 70ch;
  --content-max: 56rem;
  --radius: 0.375rem;
  --hairline: 1px;

  /* Colour — light. */
  --ink: #1b1d22;
  --ink-soft: #43474f;
  --ink-faint: #6c707a;
  --paper: #fbfaf7;
  --paper-raised: #ffffff;
  --line: #e4e0d7;
  --accent: #0d6e6e;
  --accent-strong: #0a5454;
  --tag-bg: #eef1ef;
  --tag-ink: #2f4248;
  --focus: #0d6e6e;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink: #e9e7e1;
    --ink-soft: #b7b6b0;
    --ink-faint: #8b8a85;
    --paper: #16181c;
    --paper-raised: #1d2026;
    --line: #2c2f36;
    --accent: #4cc9c0;
    --accent-strong: #6fd8d0;
    --tag-bg: #23272e;
    --tag-ink: #cfe7e4;
    --focus: #4cc9c0;
  }
}

/* ---------------------------------------------------------------------
   Reset and base
   --------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.15em;
}

a:hover {
  color: var(--accent-strong);
}

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

ul {
  padding: 0;
  list-style: none;
}

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Honour the reader's motion preference. */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* ---------------------------------------------------------------------
   Skip link
   --------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  inset-inline-start: var(--space-s);
  inset-block-start: var(--space-s);
  padding: var(--space-2xs) var(--space-s);
  background-color: var(--paper-raised);
  color: var(--ink);
  border: var(--hairline) solid var(--line);
  border-radius: var(--radius);
  transform: translateY(-150%);
}

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

/* ---------------------------------------------------------------------
   Shared layout rhythm
   Centre the column and apply inline padding at every size; the values
   that change per viewport are set in the bounded queries below.
   --------------------------------------------------------------------- */
.site-header__inner,
.section,
.site-footer {
  max-width: var(--content-max);
  margin-inline: auto;
}

/* ---------------------------------------------------------------------
   Header / identity
   --------------------------------------------------------------------- */
.site-header {
  border-block-end: var(--hairline) solid var(--line);
}

.site-header__eyebrow {
  font-size: var(--step--1);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

.identity {
  font-size: var(--step-5);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.identity__surname {
  font-style: italic;
  color: var(--accent);
}

.identity__creed {
  font-size: var(--step-1);
  color: var(--ink-soft);
  font-style: italic;
}

.identity__summary {
  max-width: var(--measure);
  color: var(--ink-soft);
}

.contact {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xs) var(--space-m);
  font-size: var(--step--1);
}

.contact__item--plain {
  color: var(--ink-faint);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-s);
}

.actions__hint {
  font-size: var(--step--1);
  color: var(--ink-faint);
}

.button {
  font: inherit;
  font-size: var(--step--1);
  font-weight: 600;
  color: var(--paper-raised);
  background-color: var(--accent);
  border: var(--hairline) solid transparent;
  border-radius: var(--radius);
  padding: var(--space-2xs) var(--space-m);
  cursor: pointer;
}

.button:hover {
  background-color: var(--accent-strong);
}

kbd {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background-color: var(--tag-bg);
  border: var(--hairline) solid var(--line);
  border-radius: 4px;
  padding: 0.05em 0.4em;
}

/* ---------------------------------------------------------------------
   Sections
   --------------------------------------------------------------------- */
.section {
  border-block-end: var(--hairline) solid var(--line);
}

.section:last-of-type {
  border-block-end: 0;
}

.section__eyebrow {
  font-size: var(--step--1);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  position: relative;
  padding-inline-start: 2.75rem;
}

/* The short accent rule beside each eyebrow is the page's quiet signature. */
.section__eyebrow::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  inset-block-start: 0.62em;
  inline-size: 2rem;
  block-size: 2px;
  background-color: var(--accent);
}

.section__title {
  font-size: var(--step-3);
}

.section__intro {
  max-width: var(--measure);
  color: var(--ink-soft);
}

/* ---------------------------------------------------------------------
   Introduction
   --------------------------------------------------------------------- */
.intro__lead,
.intro__para {
  max-width: var(--measure);
  color: var(--ink-soft);
}

.intro__lead {
  font-size: var(--step-1);
  color: var(--ink);
}

.intro cite {
  font-style: italic;
}

/* ---------------------------------------------------------------------
   Roles (experience)
   --------------------------------------------------------------------- */
.role__org {
  font-size: var(--step-2);
}

.role__where,
.role__when {
  font-size: var(--step--1);
  color: var(--ink-faint);
}

.role__title {
  font-weight: 600;
  color: var(--ink);
}

.role__subhead {
  font-weight: 600;
  color: var(--ink-soft);
  font-size: var(--step--1);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.role__lead {
  max-width: var(--measure);
  color: var(--ink-soft);
}

.detail-list {
  display: grid;
  gap: var(--space-xs);
  max-width: var(--measure);
}

.detail-list__item {
  position: relative;
  padding-inline-start: 1.25rem;
  color: var(--ink-soft);
}

.detail-list__item::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  inset-block-start: 0.62em;
  inline-size: 0.5rem;
  block-size: 2px;
  background-color: var(--accent);
}

.detail-list__item strong {
  color: var(--ink);
}

/* ---------------------------------------------------------------------
   Selected work (projects)
   --------------------------------------------------------------------- */
.projects {
  display: grid;
  gap: var(--space-l);
}

.project__name {
  font-size: var(--step-1);
}

.project__desc {
  max-width: var(--measure);
  color: var(--ink-soft);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3xs) var(--space-2xs);
}

.tag {
  font-size: var(--step--1);
  font-family: var(--font-mono);
  color: var(--tag-ink);
  background-color: var(--tag-bg);
  border-radius: var(--radius);
  padding: 0.1em 0.6em;
}

.project__link {
  font-size: var(--step--1);
}

/* ---------------------------------------------------------------------
   Toolkit (skills)
   --------------------------------------------------------------------- */
.skills {
  display: grid;
  gap: var(--space-l);
}

.skill-group__title {
  font-size: var(--step-0);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink);
  margin-block-end: var(--space-2xs);
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3xs) var(--space-2xs);
}

.skill-list__item {
  font-size: var(--step--1);
  color: var(--tag-ink);
  background-color: var(--tag-bg);
  border-radius: var(--radius);
  padding: 0.15em 0.65em;
}

.skills__line {
  max-width: var(--measure);
  font-size: var(--step--1);
  color: var(--ink-soft);
}

.skills__line strong {
  color: var(--ink);
}

/* ---------------------------------------------------------------------
   References (quotes)
   --------------------------------------------------------------------- */
.quotes {
  display: grid;
  gap: var(--space-l);
}

.quote {
  max-width: var(--measure);
  padding-inline-start: var(--space-m);
  border-inline-start: 2px solid var(--accent);
}

.quote__text {
  color: var(--ink-soft);
  font-style: italic;
}

.quote__cite {
  margin-block-start: var(--space-xs);
  font-style: normal;
  font-size: var(--step--1);
}

.quote__name {
  font-style: normal;
  font-weight: 600;
  color: var(--ink);
}

.quote__role {
  color: var(--ink-faint);
}

/* ---------------------------------------------------------------------
   Footer
   --------------------------------------------------------------------- */
.site-footer {
  border-block-start: var(--hairline) solid var(--line);
  text-align: center;
}

.site-footer__creed {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--step-1);
  color: var(--ink);
  text-wrap: balance;
  max-width: 40ch;
  margin-inline: auto;
}

.site-footer__meta {
  font-size: var(--step--1);
  color: var(--ink-faint);
}

/* =====================================================================
   Shared First responsive rules
   Bounded ranges, no cascade bleed. Breakpoints: small < 40em,
   medium 40em–60em, large >= 60em.
   ===================================================================== */

/* --- Inline padding for the centred column --- */
@media (width < 40em) {
  .site-header__inner,
  .section,
  .site-footer {
    padding-inline: var(--space-s);
  }
}

@media (width >= 40em) {
  .site-header__inner,
  .section,
  .site-footer {
    padding-inline: var(--space-l);
  }
}

/* --- Vertical spacing within blocks --- */
@media (width < 60em) {
  .site-header__inner {
    padding-block: var(--space-l);
    display: grid;
    gap: var(--space-s);
  }

  .section {
    padding-block: var(--space-l);
    display: grid;
    gap: var(--space-m);
  }

  .site-footer {
    padding-block: var(--space-l);
    display: grid;
    gap: var(--space-2xs);
  }
}

@media (width >= 60em) {
  .site-header__inner {
    padding-block: var(--space-xl);
    display: grid;
    gap: var(--space-s);
  }

  .section {
    padding-block: var(--space-xl);
    display: grid;
    grid-template-columns: 14rem 1fr;
    column-gap: var(--space-xl);
    row-gap: var(--space-m);
  }

  /* The eyebrow + title block sits in the left rail and stays put. */
  .section__head {
    grid-column: 1;
    position: sticky;
    inset-block-start: var(--space-m);
    align-self: start;
    display: grid;
    gap: var(--space-2xs);
  }

  .section__body {
    grid-column: 2;
  }

  .site-footer {
    padding-block: var(--space-xl);
    display: grid;
    gap: var(--space-2xs);
  }
}

/* --- Spacing inside the section head and body at narrow sizes --- */
@media (width < 60em) {
  .section__head {
    display: grid;
    gap: var(--space-2xs);
  }
}

/* --- Inner spacing of the body content (all sizes share this rhythm) --- */
.section__body {
  display: grid;
  gap: var(--space-l);
}

.role {
  display: grid;
  gap: var(--space-s);
}

.role__head {
  display: grid;
  gap: var(--space-3xs);
}

.role__block {
  display: grid;
  gap: var(--space-s);
}

.project {
  display: grid;
  gap: var(--space-2xs);
}

/* --- Skills grid columns per viewport --- */
@media (40em <= width < 60em) {
  .skills {
    grid-template-columns: repeat(2, 1fr);
    column-gap: var(--space-l);
  }
}

@media (width >= 60em) {
  .skills {
    grid-template-columns: repeat(2, 1fr);
    column-gap: var(--space-l);
  }
}