/* ---------- Design tokens ---------- */
:root {
  --colour-bg: #f3f0e9; --colour-surface: #fbfaf7; --colour-text: #151816;
  --colour-muted: #626760; --colour-accent: #d8ff3e; --colour-accent-strong: #a9ce00;
  --colour-line: #c9c9c1; --colour-feature: #142a22;
  --font-body: "Segoe UI", Calibri, Arial, sans-serif;
  --font-display: Georgia, "Times New Roman", serif;
  --space-xs: .5rem; --space-sm: 1rem; --space-md: 1.5rem; --space-lg: 2.5rem; --space-xl: 5rem; --space-section: 8rem;
  --container: 73.75rem; --radius: 1.5rem; --transition: 220ms ease;
  --shadow: 0 1.5rem 3.75rem rgba(20, 42, 34, .12);
}

[data-theme="dark"] {
  --colour-bg: #111513; --colour-surface: #1a201d; --colour-text: #f2f4ed;
  --colour-muted: #aeb6ae; --colour-line: #374039; --colour-feature: #d8ff3e;
  --shadow: 0 1.5rem 3.75rem rgba(0, 0, 0, .3);
}

/* ---------- Base and accessibility ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--colour-bg); color: var(--colour-text); font-family: var(--font-body); line-height: 1.7; transition: background var(--transition), color var(--transition); }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
.container { width: min(calc(100% - 2.5rem), var(--container)); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: .75rem; left: .75rem; z-index: 100; padding: .625rem 1rem; background: var(--colour-accent); color: #111; transform: translateY(-150%); transition: transform var(--transition); }
.skip-link:focus { transform: translateY(0); }
/* focus ring needs 3:1 non-text contrast, lime was 1.6:1 on light */
:focus-visible { outline: 3px solid var(--colour-text); outline-offset: 4px; }

/* ---------- Navigation ---------- */
.site-header { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--colour-bg) 88%, transparent); backdrop-filter: blur(18px); }
.nav { min-height: 5.125rem; display: flex; align-items: center; justify-content: space-between; }
.logo { font: 700 1.35rem var(--font-display); letter-spacing: -.06em; }
.logo span { color: var(--colour-accent-strong); }
.nav-links { display: flex; align-items: center; gap: 1.875rem; }
.nav-links a { color: var(--colour-muted); font-weight: 600; transition: color var(--transition); }
.nav-links a:hover { color: var(--colour-text); }
.theme-toggle { width: 2.625rem; height: 2.625rem; border: 1px solid var(--colour-line); border-radius: 50%; background: var(--colour-surface); color: var(--colour-text); cursor: pointer; font-size: 1.05rem; line-height: 1; display: inline-grid; place-items: center; }
/* only the OTHER theme's half-circle shows, same trick as teammate's toggle */
[data-theme="light"] .icon-light { display: none; }
[data-theme="dark"] .icon-dark { display: none; }
.menu-toggle { display: none; border: 0; background: transparent; cursor: pointer; }
.menu-toggle > span:not(.sr-only) { display: block; width: 1.5rem; height: 2px; margin: 5px; background: var(--colour-text); }

/* ---------- Hero ---------- */
.hero { min-height: calc(100vh - 5.125rem); display: grid; align-items: center; padding: var(--space-xl) 0 6.25rem; overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 4rem; align-items: center; }
.eyebrow, .section-number { margin: 0 0 1.125rem; color: var(--colour-muted); font-size: .8rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.05; margin-top: 0; }
h1 { margin-bottom: 1.75rem; font-size: clamp(3.4rem, 8vw, 7.6rem); letter-spacing: -.075em; }
h1 span { color: var(--colour-feature); }
h2 { margin-bottom: 2.125rem; font-size: clamp(2.4rem, 5vw, 4.4rem); letter-spacing: -.055em; }
h3 { font-size: 1.4rem; letter-spacing: -.025em; }
.hero-text { max-width: 37.5rem; margin: 0; color: var(--colour-muted); font-size: 1.14rem; }
.hero-actions { display: flex; gap: .875rem; margin-top: 2.375rem; }
.button { min-height: 3.25rem; display: inline-flex; align-items: center; justify-content: center; padding: 0 1.5rem; border: 1px solid var(--colour-text); border-radius: 100px; cursor: pointer; font-weight: 700; transition: transform var(--transition), background var(--transition); }
.button:hover { transform: translateY(-3px); }
.button.primary { background: var(--colour-text); color: var(--colour-bg); }
.button.secondary { background: transparent; color: var(--colour-text); }
.hero-visual { position: relative; min-height: 32.5rem; display: grid; place-items: center; }
.portrait-card { position: relative; z-index: 2; width: min(22.5rem, 80vw); aspect-ratio: .78; display: grid; place-items: center; background: var(--colour-feature); border-radius: 11.25rem 11.25rem 2rem 2rem; box-shadow: var(--shadow); transform: rotate(3deg); }
.portrait-card::after { content: ""; position: absolute; inset: 1.125rem; border: 1px solid color-mix(in srgb, var(--colour-accent) 45%, transparent); border-radius: inherit; }
.portrait-card span { color: var(--colour-accent); font: 700 clamp(4rem, 10vw, 7rem) var(--font-display); letter-spacing: -.09em; }
/* monogram flips on dark, else lime on lime */
[data-theme="dark"] .portrait-card span { color: #142a22; }
.orbit { position: absolute; border: 1px solid var(--colour-line); border-radius: 50%; animation: drift 7s ease-in-out infinite; }
.orbit-one { width: 27.5rem; height: 27.5rem; }
.orbit-two { width: 32.5rem; height: 15.625rem; transform: rotate(-22deg); animation-delay: -3s; }

/* ---------- Content sections ---------- */
.section { padding: var(--space-section) 0; border-top: 1px solid var(--colour-line); }
.section-tinted { background: var(--colour-surface); }
.split-layout { display: grid; grid-template-columns: .9fr 1.1fr; gap: 6.25rem; }
.about-copy { max-width: 40rem; color: var(--colour-muted); font-size: clamp(1.15rem, 2vw, 1.45rem); }
.about-copy p:first-child { margin-top: 0; color: var(--colour-text); }
.profile-facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: .75rem; margin-top: 2rem; }
.profile-facts div { padding: 1rem; border: 1px solid var(--colour-line); border-radius: 1rem; }
.profile-facts span, .contact-details span { display: block; color: var(--colour-muted); font-size: .72rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.profile-facts strong { display: block; margin-top: .35rem; color: var(--colour-text); font-size: .9rem; }
.education-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.375rem; }
/* grid stretches cards; space-between sank the short card's title */
.education-card { min-height: 17rem; display: flex; flex-direction: column; justify-content: flex-start; padding: 2.125rem; border: 1px solid var(--colour-line); border-radius: var(--radius); background: var(--colour-bg); transition: transform var(--transition), box-shadow var(--transition); }
.education-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.education-index, .project-meta { color: var(--colour-muted); font-size: .75rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.education-card h3 { margin: 1.5rem 0 .625rem; font-size: 2rem; }
.education-card p { margin: 0; color: var(--colour-muted); }
.education-detail { padding-top: .75rem; font-size: .92rem; }
.section-heading-row { display: grid; grid-template-columns: 1fr .6fr; gap: 3.125rem; align-items: end; }
.section-heading-row > p { margin-bottom: 2.5rem; color: var(--colour-muted); }
.skills-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.125rem; }
.skill-card { padding: 1.875rem; border-top: 3px solid var(--colour-text); background: var(--colour-surface); }
.skill-heading, .project-meta { display: flex; justify-content: space-between; gap: 1rem; }
.skill-heading span { color: var(--colour-muted); font-size: .8rem; }
.skill-card p { min-height: 3.375rem; color: var(--colour-muted); }
.skill-bar { height: 7px; margin-top: 1.625rem; overflow: hidden; background: var(--colour-line); border-radius: 20px; }
.skill-bar span { display: block; width: var(--level); height: 100%; background: var(--colour-accent-strong); border-radius: inherit; animation: grow 1.4s ease both; }
.skill-html { --level: 78%; } .skill-css { --level: 72%; } .skill-javascript { --level: 65%; }
.skill-illustrator { --level: 62%; } .skill-photoshop { --level: 60%; }

/* ---------- Project evidence ---------- */
.projects-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.375rem; }
.project-card { padding: 2.125rem; border: 1px solid var(--colour-line); border-radius: var(--radius); background: var(--colour-surface); transition: transform var(--transition), border-color var(--transition); }
.project-card:hover { transform: translateY(-6px); border-color: var(--colour-accent-strong); }
.project-card h3 { margin: 3rem 0 1rem; font-size: 1.75rem; }
.project-card > p { color: var(--colour-muted); }
.tag-list { display: flex; flex-wrap: wrap; gap: .5rem; margin: 1.5rem 0 0; padding: 0; list-style: none; }
.tag-list li { padding: .35rem .7rem; border: 1px solid var(--colour-line); border-radius: 100px; font-size: .8rem; }

/* ---------- Contact ---------- */
.contact-section { background: var(--colour-accent); color: #111; }
.contact-section .section-number { color: #405000; }
.contact-layout { display: grid; grid-template-columns: 1.1fr .9fr; gap: 4rem; align-items: end; }
.contact-layout h2 { margin-bottom: 0; }
.contact-details { display: grid; gap: 1rem; font-style: normal; }
.contact-details a { padding: 1.25rem 0; border-bottom: 1px solid rgba(0, 0, 0, .35); }
.contact-details span { color: #405000; }
.contact-details strong { display: block; margin-top: .25rem; font-size: clamp(1rem, 2vw, 1.35rem); overflow-wrap: anywhere; }

/* ---------- Footer ---------- */
.site-footer { padding: 5.625rem 0 1.75rem; background: #10251e; color: #eff5ec; }
.footer-layout, .footer-bottom { display: flex; justify-content: space-between; gap: 2.5rem; }
.footer-layout { align-items: end; }
.footer-layout h2 { margin: 0; }
.footer-layout a { padding-bottom: 4px; border-bottom: 1px solid #eff5ec; }
.footer-bottom { margin-top: 5rem; padding-top: 1.375rem; border-top: 1px solid #40534c; color: #aebbb4; font-size: .88rem; }

/* ---------- Motion ---------- */
@keyframes grow { from { width: 0; } }
@keyframes drift { 0%, 100% { translate: 0 0; } 50% { translate: 0 -14px; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; } }

/* ---------- Tablet and mobile layouts ---------- */
@media (max-width: 820px) {
  .menu-toggle { display: block; }
  .nav-links { position: absolute; top: 5.125rem; left: 1.25rem; right: 1.25rem; display: none; flex-direction: column; align-items: stretch; padding: 1.5rem; background: var(--colour-surface); border: 1px solid var(--colour-line); border-radius: 1.125rem; box-shadow: var(--shadow); }
  .nav-links.open { display: flex; } .theme-toggle { align-self: flex-start; }
  .hero-grid, .split-layout, .section-heading-row, .contact-layout { grid-template-columns: 1fr; }
  .hero { padding-top: 3.125rem; } .hero-visual { min-height: 25rem; }
  .orbit-one { width: 21.25rem; height: 21.25rem; } .orbit-two { width: 23.75rem; height: 11.875rem; }
  .split-layout { gap: 1.25rem; } .skills-grid, .education-grid { grid-template-columns: 1fr; }
  .profile-facts { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .container { width: min(calc(100% - 1.75rem), var(--container)); }
  .hero { min-height: auto; padding-bottom: var(--space-xl); } h1 { font-size: clamp(3.1rem, 17vw, 5rem); }
  .hero-actions, .footer-layout, .footer-bottom { flex-direction: column; align-items: stretch; } .button { width: 100%; }
  .hero-visual { min-height: 21.875rem; } .portrait-card { width: 15.625rem; }
  .orbit-one { width: 17.5rem; height: 17.5rem; } .orbit-two { width: 20rem; height: 10rem; }
  .section { padding: 5.625rem 0; } .education-grid, .projects-grid { grid-template-columns: 1fr; }
  .footer-bottom { margin-top: 3.125rem; gap: .25rem; } .footer-bottom p { margin: 0; }
}