:root {
  --ink: #1c1b33;
  --paper: #f4f2ff;
  --coral: #ff5a3c;
  --cobalt: #2e4bff;
  --lemon: #ffd93d;
  --mint: #2fd3a0;
  --display: "Bricolage Grotesque", system-ui, sans-serif;
  --body: "Instrument Sans", system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 1.0625rem;
  line-height: 1.6;
}
a { color: inherit; }
:focus-visible { outline: 3px solid var(--cobalt); outline-offset: 3px; }

h1, h2, h3 { font-family: var(--display); line-height: 1.05; margin: 0; }
h2 { font-size: clamp(2rem, 5vw, 3.25rem); font-weight: 800; letter-spacing: -0.02em; }

section { padding: clamp(3.5rem, 9vw, 7rem) clamp(1.25rem, 6vw, 5rem); }
section > * { max-width: 68rem; margin-left: auto; margin-right: auto; }

/* header */
.top {
  position: sticky; top: 0; z-index: 10;
  display: flex; justify-content: space-between; align-items: center;
  padding: 0.9rem clamp(1.25rem, 6vw, 5rem);
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px);
}
.logo {
  font-family: var(--display); font-weight: 800; text-decoration: none;
  background: var(--ink); color: var(--paper);
  padding: 0.25rem 0.6rem; border-radius: 0.5rem;
}
nav { display: flex; gap: 1.5rem; }
nav a { text-decoration: none; font-weight: 500; }
nav a:hover { text-decoration: underline; text-underline-offset: 4px; }

/* hero */
.hero {
  position: relative; overflow: hidden;
  min-height: 78vh;
  display: flex; align-items: center;
}
.hero-text { position: relative; z-index: 1; max-width: 40rem; margin: 0; }
.hero-intro { font-size: 1.25rem; font-weight: 500; margin: 0 0 0.5rem; }
h1 {
  font-size: clamp(3.5rem, 13vw, 9rem);
  font-weight: 800; letter-spacing: -0.04em;
}
.hero-sub { max-width: 34rem; font-size: 1.25rem; margin: 1.5rem 0 2rem; }

.hero-shapes { position: absolute; inset: 0; pointer-events: none; }
.shape { position: absolute; display: block; }
.s1 { width: 22rem; height: 22rem; border-radius: 50%; background: var(--coral); right: -4rem; top: 12%; }
.s2 { width: 14rem; height: 14rem; background: var(--cobalt); right: 16%; bottom: 8%; border-radius: 2rem; transform: rotate(14deg); }
.s3 { width: 9rem; height: 9rem; background: var(--lemon); right: 36%; top: 14%; border-radius: 50% 50% 0 50%; }
.s4 { width: 6rem; height: 6rem; background: var(--mint); right: 4%; bottom: 14%; border-radius: 50%; }
@media (prefers-reduced-motion: no-preference) {
  .s1, .s2, .s3, .s4 { animation: settle 0.9s cubic-bezier(.2,.9,.3,1.2) both; }
  .s2 { animation-delay: 0.1s; } .s3 { animation-delay: 0.2s; } .s4 { animation-delay: 0.3s; }
  @keyframes settle { from { transform: translateY(40px) scale(0.6); opacity: 0; } }
}
@media (max-width: 720px) {
  .hero { min-height: 70vh; }
  .shape { opacity: 0.25; }
}

/* buttons */
.btn {
  display: inline-block; text-decoration: none; font-weight: 600;
  background: var(--ink); color: var(--paper);
  padding: 0.8rem 1.4rem; border-radius: 999px;
  border: 2px solid var(--ink);
  transition: transform 0.15s;
}
.btn:hover { transform: translateY(-2px); }
.btn.ghost { background: transparent; color: var(--ink); }

/* projects */
.filters { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 1.5rem auto 2rem; }
.chip {
  font: inherit; font-weight: 500; cursor: pointer;
  padding: 0.35rem 1rem; border-radius: 999px;
  border: 2px solid var(--ink); background: transparent; color: var(--ink);
}
.chip.on { background: var(--ink); color: var(--paper); }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr)); gap: 1.25rem; }
.card {
  font: inherit; text-align: left; cursor: pointer; color: var(--ink);
  border: 0; border-radius: 1.5rem; padding: 1.5rem;
  min-height: 15rem; display: flex; flex-direction: column; gap: 0.6rem;
  transition: transform 0.2s, border-radius 0.2s;
}
.card:hover { transform: translateY(-6px) rotate(-1deg); border-radius: 2.5rem 1rem 2.5rem 1rem; }
.card.coral { background: var(--coral); }
.card.cobalt { background: var(--cobalt); color: #fff; }
.card.lemon { background: var(--lemon); }
.card.mint { background: var(--mint); }
.card h3 { font-size: 1.75rem; font-weight: 800; letter-spacing: -0.02em; }
.card p { margin: 0; }
.card-year { font-weight: 600; }
.card-tags { margin-top: auto; font-weight: 600; font-size: 0.95rem; }

/* dialog */
dialog {
  width: min(36rem, calc(100vw - 2rem));
  border: 3px solid var(--ink); border-radius: 1.5rem;
  background: var(--paper); color: var(--ink); padding: 2rem;
}
dialog::backdrop { background: rgba(28, 27, 51, 0.6); }
dialog h3 { font-size: 2rem; font-weight: 800; margin-bottom: 0.25rem; }
.d-meta { margin: 0 0 1rem; font-weight: 500; opacity: 0.75; }
dialog ul { padding-left: 1.2rem; }
.d-links a { margin-right: 1rem; font-weight: 600; }
.close {
  float: right; font: inherit; font-weight: 600; cursor: pointer;
  border: 2px solid var(--ink); background: transparent; color: var(--ink);
  border-radius: 999px; padding: 0.2rem 0.9rem;
}

/* about */
.about { background: var(--ink); color: var(--paper); }
.about-body { max-width: 40rem; margin: 1.5rem auto 2rem; }
.about-body p { margin: 0 0 1rem; }
.skills { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 0.6rem; }
.skills li {
  padding: 0.3rem 1rem; border-radius: 999px;
  background: var(--lemon); color: var(--ink); font-weight: 600;
}

/* contact */
.contact p { margin: 1rem auto 1.75rem; }
.links { display: flex; flex-wrap: wrap; gap: 0.75rem; }

footer { padding: 2rem; text-align: center; font-size: 0.95rem; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}