/* Tokens ------------------------------------------------------------- */
:root {
  --paper:    #fdf8f2;
  --paper-2:  #fbeee4;
  --ink:      #1b1730;
  --muted:    #756e88;
  --rule:     #ecdfd2;
  --accent:   #ff5d3a;   /* coral */
  --accent-2: #7c4dff;   /* violet, paired with coral for the hero gradient */
  --accent-3: #0f9d8a;   /* teal, used sparingly for hover states */

  --serif: "Newsreader", Georgia, serif;
  --sans:  "IBM Plex Sans JP", "IBM Plex Sans", system-ui, sans-serif;

  --measure: 64ch;
  --step-0: 1rem;
  --step-1: 1.25rem;
  --step-2: 1.85rem;
  --step-3: clamp(2.75rem, 5vw + 1rem, 4.5rem);
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:   #171432;
    --paper-2: #201a44;
    --ink:     #f4efe6;
    --muted:   #a89fc4;
    --rule:    #332a5c;
    --accent:  #ff8a6a;
    --accent-2: #a78bfa;
    --accent-3: #35d6be;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  padding-inline: clamp(1.25rem, 6vw, 5rem);
  padding-block: clamp(2.5rem, 8vh, 6rem);
  background: linear-gradient(180deg, var(--paper-2) 0%, var(--paper) 26rem);
  color: var(--ink);
  font-family: var(--serif);
  font-size: var(--step-0);
  line-height: 1.65;
  font-synthesis-weight: none;
}

main, header, footer { max-inline-size: var(--measure); margin-inline: 0; }

/* Type --------------------------------------------------------------- */
h1 {
  font-size: var(--step-3); line-height: 1.02; font-weight: 500;
  letter-spacing: -0.02em; margin: 0 0 1rem;
  background: linear-gradient(100deg, var(--accent) 0%, var(--accent-2) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
h2 { font-size: var(--step-2); line-height: 1.2; font-weight: 500;
     margin: 4.5rem 0 0.75rem; color: var(--ink); }
h3 { font-family: var(--sans); font-size: var(--step-1); font-weight: 600;
     line-height: 1.3; margin: 2rem 0 0.25rem; }
p { margin: 0 0 1.1rem; }
.tagline {
  font-family: var(--sans); font-size: var(--step-2); font-weight: 700;
  color: var(--ink); margin: 0 0 2.5rem; letter-spacing: -0.01em;
}
.role-rotator {
  display: inline-block; font-weight: 800; color: var(--accent);
  transition: opacity 0.35s ease, transform 0.35s ease;
}
.role-rotator.is-hidden { opacity: 0; transform: translateY(-0.3em); }
.lede { font-size: var(--step-1); }
.muted { color: var(--muted); }

/* Links -------------------------------------------------------------- */
a { color: var(--accent-2); text-decoration-thickness: 1px;
    text-underline-offset: 0.2em; transition: color 0.15s ease; }
a:hover { color: var(--accent); text-decoration-thickness: 2px; }
a:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px;
                  border-radius: 2px; }

/* Nav + language switcher -------------------------------------------- */
.topbar {
  display: flex; flex-wrap: wrap; gap: 1.5rem;
  align-items: baseline; justify-content: space-between;
  margin-block-end: 5rem;
  font-family: var(--sans); font-size: 0.875rem;
}
.topbar nav { display: flex; gap: 1.5rem; }
.topbar a { color: var(--muted); text-decoration: none; font-weight: 600; }
.topbar a:hover, .topbar a[aria-current="page"] { color: var(--accent); }
.langs { display: flex; gap: 0.85rem; }
.langs a { color: var(--muted); }
.langs [aria-current="true"] { color: var(--accent-2); font-weight: 700; }

/* Entries ------------------------------------------------------------ */
.entry {
  border-inline-start: 3px solid var(--accent-2);
  padding-inline-start: 1.5rem;
  margin-block-start: 2.5rem;
}
.entry:nth-of-type(3n+2) { border-inline-start-color: var(--accent); }
.entry:nth-of-type(3n)   { border-inline-start-color: var(--accent-3); }
.entry h3 { margin-block-start: 0; }
.meta { font-family: var(--sans); font-size: 0.8125rem; color: var(--muted); }
.compact li { margin-block-end: 0.4rem; }

/* CV rows ------------------------------------------------------------ */
.row { display: grid; grid-template-columns: 9rem 1fr; gap: 0 1.5rem;
       margin-block-end: 1.5rem; }
.row .when { font-family: var(--sans); font-size: 0.8125rem; font-weight: 600;
             color: var(--accent-3); padding-block-start: 0.35rem; }
@media (max-width: 34rem) { .row { grid-template-columns: 1fr; } }

/* Footer ------------------------------------------------------------- */
footer {
  margin-block-start: 6rem; padding-block-start: 1.5rem;
  border-block-start: 1px solid var(--rule);
  font-family: var(--sans); font-size: 0.8125rem; color: var(--muted);
}

/* Japanese ----------------------------------------------------------- */
:lang(ja) body, [lang="ja"] { font-family: var(--sans); line-height: 1.8; }
:lang(ja) h1, :lang(ja) h2 { font-weight: 700; letter-spacing: 0; }

/* RTL ---------------------------------------------------------------- */
[dir="rtl"] body { font-family: "Vazirmatn", var(--sans); line-height: 1.9; }

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