:root {
  --clr-base: #fff;
  --clr-contrast: #1c2029;
  --clr-accent-1: #3257af;
  --clr-accent-2: #ffc947;
  --clr-accent-4: #495269;
  --clr-accent-6: #f5f6fa;
  --clr-dots: #aab8da;

  --font-size-small: 0.875rem;
  --font-size-medium: clamp(1rem, 0.922rem + 0.392vw, 1.25rem);
  --font-size-large: clamp(1.125rem, 1.047rem + 0.392vw, 1.375rem);
  --font-size-x-large: clamp(1.75rem, 1.515rem + 1.176vw, 2.5rem);
  --font-size-xx-large: clamp(2.125rem, 1.413rem + 3.686vw, 4.5rem);

  --radius-m: 1rem;
  --radius-l: 1.5rem;
  --radius-xl: 2rem;

  --content-width: 76rem;
  --header-height: 4rem;
}

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

html { scroll-padding-block-start: calc(var(--header-height) + 1rem); }

body {
  margin: 0;
  background: var(--clr-base);
  color: var(--clr-accent-4);
  font-family: Inter, Roboto, "Helvetica Neue", "Arial Nova", "Nimbus Sans", Arial, sans-serif;
  font-size: var(--font-size-large);
  font-weight: 300;
  line-height: 1.4;

  &:has(dialog[open]) { overflow: hidden; }
}

@view-transition { navigation: auto; }

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after { transition: none !important; animation: none !important; }
  @view-transition { navigation: none; }
}

h1,
h2 {
  margin-block: 0 2rem;
  color: var(--clr-contrast);
  font-weight: 700;
  letter-spacing: -0.1px;
  line-height: 1.125;
  text-wrap: balance;
}

h1 { font-size: var(--font-size-xx-large); }
h2 { font-size: var(--font-size-x-large); }

p { margin-block: 0 2rem; }

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

a { color: inherit; }

.subheading { font-size: var(--font-size-large); font-weight: 600; }

/* Buttons */

.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;

  &.center { justify-content: center; }
  &.stack { flex-direction: column; }

  @media (max-width: 64rem) {
    flex-direction: column;
    > .button { width: 100%; }
  }
}

.button {
  display: inline-block;
  padding: 0.75rem 2.5rem;
  border: 2px solid transparent;
  border-radius: 10rem;
  background: var(--clr-accent-1);
  color: var(--clr-base);
  font-size: var(--font-size-medium);
  line-height: 1.6;
  text-align: center;
  text-decoration: none;
  transition: background-color 0.2s, color 0.2s;

  &:hover { background: var(--clr-accent-2); color: var(--clr-contrast); }
  &:focus-visible { outline: 2px solid var(--clr-accent-4); outline-offset: 2px; }
}

.button-outline {
  border-color: var(--clr-contrast);
  background: var(--clr-base);
  color: var(--clr-contrast);
}

.pill {
  display: block;
  padding: 0.5rem 1.5rem;
  border-radius: 10rem;
  background: var(--clr-accent-1);
  color: var(--clr-base);
  line-height: 1.2;
  text-align: center;
  text-decoration: none;

  &:hover { background: color-mix(in srgb, var(--clr-accent-1) 85%, var(--clr-contrast)); }
}

/* Header */

.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: 10;
  padding: 0.75rem 1.5rem;
  background: var(--clr-base);
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 104rem;
  margin-inline: auto;
}

.logo {
  display: flex;
  width: 2rem;

  @media (min-width: 64.0625rem) { width: 3rem; }
}

.header-actions {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.header-cta-mobile {
  padding: 0.5rem 1rem;
  font-size: 1rem;

  @media (min-width: 64.0625rem) { display: none; }
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 1.5rem;
  height: 1rem;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;

  span {
    display: block;
    height: 2px;
    background: var(--clr-contrast);
    transition: transform 0.3s ease-in-out;
  }

  &[aria-expanded="true"] {
    span:first-child { transform: translateY(7px) rotate(45deg); }
    span:last-child { transform: translateY(-7px) rotate(-45deg); }
  }

  @media (min-width: 64.0625rem) { display: none; }
}

.main-nav {
  display: none;

  ul {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 0;
    padding: 0;
    list-style: none;
  }

  li a {
    position: relative;
    display: block;
    color: var(--clr-accent-6);
    line-height: normal;
    text-decoration: none;

    &::after {
      content: "";
      position: absolute;
      inset-inline: 0;
      inset-block-end: -0.25rem;
      height: 2px;
      background: var(--clr-accent-1);
      transform: scaleX(0);
      transform-origin: 100% 50%;
      transition: transform 0.25s cubic-bezier(0.215, 0.61, 0.355, 1);
    }

    &:hover::after {
      transform: scaleX(1);
      transform-origin: 0 50%;
    }
  }

  .nav-toggle[aria-expanded="true"] ~ & {
    position: absolute;
    inset-block-start: 100%;
    inset-inline: 0;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    padding: 3rem 1.5rem;
    background: var(--clr-contrast);
  }

  @media (min-width: 64.0625rem) {
    display: flex;
    gap: 2rem;
    align-items: center;

    ul { flex-direction: row; gap: 2rem; }
    li a { color: var(--clr-contrast); }
  }
}

/* Hero */

/* Matches .header-inner's edges: 104rem plus the 1.5rem side padding both containers carry */
.hero-wrap {
  max-width: 107rem;
  margin-inline: auto;

  @media (min-width: 64.0625rem) { padding-inline: 1.5rem; }
}

.hero {
  position: relative;
  padding: 3rem 1.5rem;
  overflow: clip;
  background: var(--clr-contrast);
  color: var(--clr-base);

  &::after {
    content: "";
    position: absolute;
    inset: 0;
    background: var(--clr-contrast);
    opacity: 0.55;
  }

  h1 { color: var(--clr-base); font-size: var(--font-size-x-large); }

  @media (min-width: 64.0625rem) {
    padding-block: 12rem;
    border-radius: var(--radius-l) var(--radius-l) 0;
    overflow: visible;
  }
}

.hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;

  @media (min-width: 64.0625rem) { border-radius: var(--radius-l) var(--radius-l) 0; }
}

.hero-text {
  position: relative;
  z-index: 1;
  display: grid;
  max-width: 64rem;
  margin-inline: auto;
  text-align: center;
  text-wrap: balance;

  .hero-tagline {
    color: var(--clr-base);
    font-size: var(--font-size-xx-large);
    font-weight: 600;
    line-height: 1.125;
  }

  .subheading { margin-block-end: 0; text-shadow: 0.5rem 0.5rem 3rem var(--clr-contrast); }
}

.hero-cutout {
  position: relative;
  z-index: 1;
  margin-block-start: 2rem;

  .button-outline { padding-block: 0.625rem; }

  /* Inverted-radius notch: the white box bites into the hero's bottom-right corner */
  @media (min-width: 64.0625rem) {
    position: absolute;
    inset-block-end: 0;
    inset-inline-end: 0;
    margin: 0;
    padding: 2rem 1.5rem;
    border-start-start-radius: var(--radius-l);
    background: var(--clr-base);

    &::before,
    &::after {
      content: "";
      position: absolute;
      width: 1.5rem;
      height: 1.5rem;
      border-end-end-radius: 1.5rem;
      box-shadow: 0.3125rem 0.3125rem 0 0.3125rem var(--clr-base);
    }

    &::before { inset-block-end: 0; inset-inline-start: -1.5rem; }
    &::after { inset-block-start: -1.5rem; inset-inline-end: 0; }
  }
}

/* Dotted sections */

.dots {
  position: relative;
  padding: 3rem 1.5rem;
  background-image: radial-gradient(var(--clr-dots) 1px, transparent 0);
  background-position: -1rem -1rem;
  background-size: 1.5rem 1.5rem;

  &::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, var(--clr-base) 0%, transparent 50%, var(--clr-base) 100%);
  }

  > * {
    position: relative;
    max-width: var(--content-width);
    margin-inline: auto;
  }

  h1,
  h2 { text-align: center; }
}

.intro {
  @media (min-width: 64.0625rem) { padding-block: 8rem; }

  mark {
    position: relative;
    display: inline-block;
    background: none;
    color: inherit;

    &::after {
      content: "";
      position: absolute;
      inset-block-end: -0.3em;
      inset-inline-start: 0;
      width: 100%;
      height: 1rem;
      background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1135 142' fill='%23b3c9fc'%3E%3Cpath d='M1132.6 121.38c-2.42-3.77-6.36-5.98-10.02-8.39-11.73-7.62-33.38-19.08-61.93-30.36-16.93-6.82-34.37-12.2-51.87-17.3-64.66-19.41-57.51-19.7-157.75-37.71-22.22-3.78-44.34-8.17-66.61-11.62C678.49 4.14 718.21 8.96 613.13.39 478.35-.17 525.59-.55 390.84 2.3c-77.56 5.69-179.8 15.04-189.12 16.31-31.27 4.95-62.57 9.76-93.55 16.37C74.3 42.08 40.29 49.04 7.36 59.8 2.19 61.12-1.17 66.96.38 72.1c1.39 5.15 7.14 8.51 12.3 6.98 23.95-7.92 48.55-13.55 73.17-18.98 59.1-12.73 68.25-13.74 122.52-22.43 18.21-1.31 64.64-5.86 92.79-8.29 97.85-8.19 80.22-6.99 202.08-9.46 156.78.65 83.35-.83 215.43 8.71l62.43 7.05c-56.65-4.31-81.56-3.21-176.97-5.8-54.03 2.57-108.05 5.33-162.08 7.97-103.8 8.37-102.03 7.52-209.18 21.64-54.63 11.33-64.74 9.65-94.21 15.77-4.25.68-8.79 2.38-11.1 6.2a10.06 10.06 0 0 0 1.56 12.12c1.8 1.75 3.79 3.55 6.29 4.2 7.23 2.62 20.05-.18 28.39-2.34 33.16-7.98 45.26-12.61 113.55-21.73 124.66-15.95 194.25-14.16 317.41-8.35 89.91 4.26 92.54 5.25 182.88 20.44-82.72-5.75-79.74-4.95-226.83-8.51-27.07-.17-54.13-.38-81.2-.53-57.89 2.48-138.91 4.79-227.29 15.87a10.02 10.02 0 0 0-7.07 2.93c-3.85 3.69-3.85 10.43 0 14.14 1.96 1.75 4.38 3.01 7.07 2.93 75.07-9.42 153.15-13.1 227.47-15.88 93.1.21 217.5 3.69 237.05 4.55 43.53 2.76 87.1 5.07 130.51 9.38 19.77 2.02 59.63 6.6 68.99 7.35 20.49 3.7 41.22 6.2 61.41 11.33 12.29 2.97 24.65 5.68 37 8.41 4.2 1.14 8.33 2.6 12.66 3.22 1.33.42 2.66.48 3.99.18 4.31-.28 8.16-4.23 8.49-8.49.81-3.83-1.45-8.03-4.77-9.96-25.4-10.76-143.2-40.17-221.17-52.65-38.55-6.31-76.97-13.6-115.76-18.33 19.17.43 38.34.91 57.5 1.59 81.9 4.86 150.84 12.7 230.9 33.64 13.72 3.56 27.15 8.07 40.45 12.96 91.46 32.88 91.88 37.25 103.41 37.95 3.96.02 8.12-1 11.06-3.76 3.36-3.24 3.97-9.02 1.08-12.75Z'/%3E%3C/svg%3E") no-repeat bottom;
    }
  }
}

.intro-lede {
  max-width: 64rem;
  margin-block-end: 4rem;
  text-align: center;
  text-wrap: balance;
}

/* Home collage: horizontal scroller below desktop, 12-col mosaic above */

.collage {
  display: grid;
  grid-auto-columns: 60%;
  grid-auto-flow: column;
  gap: 1rem;
  align-items: center;
  margin-inline-end: -1.5rem;
  padding-block-end: 1.5rem;
  padding-inline-end: 1.5rem;
  overflow-x: auto;

  a { display: block; height: 100%; }

  img {
    width: 100%;
    height: 100%;
    border-radius: var(--radius-xl);
    object-fit: cover;
  }

  .tall { height: 100%; }
  .tall img { aspect-ratio: 3 / 4; }

  @media (min-width: 48rem) { grid-auto-columns: 40%; }

  @media (min-width: 64.0625rem) {
    grid-template-columns: repeat(12, 1fr);
    grid-auto-flow: row;
    margin-inline-end: auto;
    padding: 0;
    overflow: visible;

    .tall,
    .tall img { height: auto; }
    .span-2 { grid-column: span 2; }
    .span-4 { grid-column: span 4; }
  }
}

.collage-pair {
  display: grid;
  gap: 1rem;

  img { aspect-ratio: 1; }
}

.buttons.center { margin-block-start: 4rem; }

/* Projects gallery: masonry via columns, so photos keep their own aspect ratio */

.gallery-section {
  @media (min-width: 64.0625rem) {
    padding-block: 4rem;
    h1 { margin-block-end: 4rem; }
  }
}

.gallery {
  column-count: 2;
  column-gap: 1rem;

  a {
    display: block;
    margin-block-end: 1rem;
    break-inside: avoid;
  }

  img { width: 100%; border-radius: var(--radius-m); }

  @media (min-width: 48rem) { column-count: 3; }
}

/* Contact */

.contact { padding: 6rem 1.5rem 0; }

.contact-card {
  display: grid;
  gap: 2rem;
  max-width: var(--content-width);
  margin-inline: auto;
  padding: 1.5rem;
  border-radius: var(--radius-m);
  background: var(--clr-accent-6);

  @media (min-width: 64.0625rem) {
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    padding: 3rem 2rem;
  }
}

.contact-img {
  width: 100%;
  margin-block-start: -7rem;
  border-radius: var(--radius-m);
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.contact-text {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

/* Footer */

.site-footer {
  padding: 4rem 1.5rem 1.5rem;
  font-size: var(--font-size-small);
  text-align: center;

  p { margin-block: 0 1rem; }
  a:hover { text-decoration-color: var(--clr-accent-1); }
}

/* Lightbox */

.lightbox {
  position: fixed;
  width: 100vw;
  max-width: none;
  height: 100dvh;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  outline: none;
  background: transparent;
  overflow: hidden;

  &[open] {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  &::backdrop { background: color-mix(in srgb, var(--clr-contrast) 92%, transparent); }

  button {
    position: absolute;
    display: grid;
    place-items: center;
    width: 3rem;
    height: 3rem;
    padding: 0;
    border: 0;
    border-radius: 50%;
    background: color-mix(in srgb, var(--clr-base) 15%, transparent);
    color: var(--clr-base);
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;

    &:hover { background: color-mix(in srgb, var(--clr-base) 30%, transparent); }
  }
}

.lightbox-content {
  display: contents;

  img {
    max-width: calc(100vw - 2rem);
    max-height: calc(100dvh - 7rem);
    border-radius: var(--radius-m);
    object-fit: contain;
  }
}

.lightbox-close { inset-block-start: 1rem; inset-inline-end: 1rem; }

.lightbox-step {
  inset-block-end: 1rem;

  &.lightbox-prev { inset-inline-start: calc(50% - 3.5rem); }
  &.lightbox-next { inset-inline-end: calc(50% - 3.5rem); }

  @media (min-width: 48rem) {
    inset-block: 0;
    margin-block: auto;

    &.lightbox-prev { inset-inline-start: 1rem; }
    &.lightbox-next { inset-inline-end: 1rem; }
  }
}