/* ─── Fonts ─────────────────────────────────────────────── */

@font-face {
  font-family: 'ClashDisplay';
  src: url('../fonts/clash-display/ClashDisplay-Variable.woff2') format('woff2-variations'),
       url('../fonts/clash-display/ClashDisplay-Variable.woff') format('woff-variations');
  font-weight: 200 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Satoshi';
  src: url('../fonts/satoshi/Satoshi-Variable.woff2') format('woff2-variations'),
       url('../fonts/satoshi/Satoshi-Variable.woff') format('woff-variations');
  font-weight: 300 900;
  font-style: normal;
  font-display: swap;
}

/* ─── Custom properties ─────────────────────────────────── */

:root {
  --font-display: 'ClashDisplay', sans-serif;
  --font-sans:    'Satoshi', sans-serif;

  --color-ink:       #090909;
  --color-muted:     #333333;
  --color-secondary: #888888;
  --color-tertiary:  #aaaaaa;
  --color-underline: #bbbbbb;
  --color-border:    #cccccc;
  --color-bg:        #ffffff;

  --text-xs:   0.75rem;
  --text-sm:   0.85rem;
  --text-md:   0.95rem;
  --text-base: 1.125rem;
  --text-lg:   1.5rem;

  --leading-tight:  1.1;
  --leading-snug:   1.2;
  --leading-normal: 1.5;
  --leading-loose:  1.7;

  --weight-text:   450;
  --weight-strong: 600;

  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-24: 6rem;

  --transition-color: color 0.2s ease;
}

/* ─── Base ───────────────────────────────────────────────── */

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

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  font-synthesis: none;
  scrollbar-gutter: stable;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-color);
  -webkit-tap-highlight-color: transparent;
  position: relative;

  &::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100%;
    height: 1px;
    background: var(--color-underline);
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.25s ease, transform 0.45s ease;
  }

  &:hover::after {
    opacity: 1;
    transform: translateY(0);
  }
}

:focus-visible {
  outline: 2px solid var(--color-ink);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ─── Shared ─────────────────────────────────────────────── */

.profile__link svg,
.post__link svg {
  width: 0.85em;
  height: 0.85em;
  stroke-width: 2.5;
}

/* ─── Link sizes ─────────────────────────────────────────── */

.link_medium {
  font-size: var(--text-md);
  font-weight: var(--weight-strong);
  color: var(--color-secondary);

  &:hover {
    color: var(--color-ink);
  }
}

.link_large {
  font-size: var(--text-base);
  color: var(--color-tertiary);

  &:hover {
    color: var(--color-ink);
  }
}

/* ─── Profile ────────────────────────────────────────────── */

.profile {
  min-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-24) var(--space-6);
}

.profile__inner {
  width: 100%;
  max-width: 28rem;
  text-align: center;
}

.profile__photo {
  display: block;
  margin-bottom: var(--space-8);

  img {
    display: block;
    margin: 0 auto;
    border-radius: 1.5rem;
    box-shadow:
      oklch(0.35 0.05 80 / 0.24) 0px max(22px, 1.8em) 2.2em 0px,
      oklch(0.35 0.05 80 / 0.18) 0px max(12px, 0.9em) 1.2em 0px,
      oklch(0.35 0.05 80 / 0.11) 0px max(4px, 0.35em) 0.4em 0px;
  }
}

.profile__name {
  font-family: var(--font-display);
  font-size: 3rem;
  line-height: var(--leading-tight);
  letter-spacing: 0.02em;
  margin: 0 0 1.25rem;
}

@keyframes letter-jump {
  0%, 100% { transform: translateY(0); }
  40%       { transform: translateY(-3px); }
  70%       { transform: translateY(-1px); }
}

.profile__name-letter {
  display: inline-block;
}

.profile__name-letter.is-jumping {
  animation: letter-jump 0.5s ease-in-out both;
}

.profile__subtitle {
  font-size: var(--text-lg);
  font-weight: var(--weight-text);
  line-height: var(--leading-snug);
  color: var(--color-secondary);
  margin: 0 0 var(--space-8);
}

.profile__bio {
  font-size: var(--text-base);
  font-weight: var(--weight-text);
  line-height: var(--leading-normal);
  margin: 0 0 var(--space-10);

  p {
    margin: 0;
  }

  a {
    color: var(--color-secondary);
    text-decoration: underline;
    transition: var(--transition-color);

    &::after {
      display: none;
    }

    &:hover {
      color: var(--color-ink);
    }
  }
}

.profile__links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-12);
  list-style: none;
  margin: var(--space-10) 0 0;
  padding: 0;
}

.profile__link {
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  opacity: 0;
  transform: translateY(6px);
  transition: var(--transition-color), opacity 0.4s ease, transform 0.4s ease;
}

.profile__links[data-loaded] .profile__link {
  opacity: 1;
  transform: none;

  &:nth-child(1) { transition-delay: 0ms; }
  &:nth-child(2) { transition-delay: 80ms; }
  &:nth-child(3) { transition-delay: 160ms; }
}

/* ─── Site footer ────────────────────────────────────────── */

.site-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: nowrap;
  gap: var(--space-8);
  padding: var(--space-8) var(--space-6);
  font-size: var(--text-sm);
  color: var(--color-tertiary);
}

.site-footer__copy {
  margin: 0;

  a {
    color: inherit;
    text-decoration: underline;

    &:hover {
      color: var(--color-ink);
    }
  }
}

.site-footer__link {
  color: inherit;

  &:hover {
    color: var(--color-ink);
  }
}

/* ─── Blog ───────────────────────────────────────────────── */

.blog__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: auto 1fr;
}

.blog__item {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: subgrid;
  border-bottom: 1px dotted var(--color-border);
  transition: opacity 0.2s ease;

  &:hover,
  &.is-active {
    border-top: 1px dotted var(--color-border);
    margin-top: -1px;

    .blog__date,
    .blog__title,
    .blog__excerpt {
      color: var(--color-ink);
    }
  }
}

.blog__list:has(.blog__item:hover) .blog__item:not(:hover),
.blog__list:has(.blog__item.is-active) .blog__item:not(.is-active) {
  opacity: 0.35;
}

.blog__date,
.blog__content {
  padding: var(--space-6) var(--space-4);
  transition: var(--transition-color);
}

.blog__date {
  font-size: var(--text-sm);
  color: var(--color-tertiary);
  white-space: nowrap;
  padding-right: var(--space-8);
}

.blog__link {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: subgrid;
  align-items: baseline;
  color: var(--color-ink);
  transition: var(--transition-color);

  &::after {
    display: none;
  }
}

.blog__title {
  font-size: var(--text-base);
  font-weight: 500;
  display: block;
  margin: 0;
}

.blog__excerpt {
  font-size: var(--text-sm);
  color: var(--color-tertiary);
  margin: var(--space-1) 0 0;
  line-height: var(--leading-normal);
}

/* ─── Post ───────────────────────────────────────────────── */

.post__cover {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  object-position: center;
  border-radius: 0.75rem;
  margin: 0 auto var(--space-8);
}

.post__date {
  font-size: var(--text-sm);
  color: var(--color-tertiary);
  margin: 0 0 var(--space-3);
}

.post__link-label {
  font-size: var(--text-xs);
  font-weight: var(--weight-strong);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-tertiary);
  margin: var(--space-8) 0 var(--space-2);
}

.post__link {
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  font-size: var(--text-md);
  font-weight: var(--weight-strong);
  color: var(--color-secondary);

  &:hover {
    color: var(--color-ink);
  }
}

.post__back {
  margin-top: var(--space-12);
}

/* ─── Error ──────────────────────────────────────────────── */

.error {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  text-align: center;
}

.error__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.error__code {
  font-family: var(--font-display);
  font-size: 5rem;
  line-height: 1;
  margin: 0;
}

.error__message {
  font-size: var(--text-lg);
  color: var(--color-muted);
  margin: 0;
}

.error__link {
  font-size: var(--text-base);
  color: var(--color-muted);
  margin-top: var(--space-2);

  &:hover {
    color: var(--color-ink);
  }
}

/* ─── Default page ───────────────────────────────────────── */

.page {
  max-width: 40rem;
  margin: 0 auto;
  padding: var(--space-24) var(--space-6);
}

.page__title {
  font-family: var(--font-display);
  font-size: 4rem;
  line-height: var(--leading-tight);
  margin: var(--space-8) 0;
}

.page__body {
  font-size: var(--text-base);
  line-height: var(--leading-loose);

  h2, h3, h4 {
    font-weight: 700;
  }

  h2 {
    font-size: 1.75rem;
    line-height: var(--leading-snug);
    margin: var(--space-12) 0 var(--space-3);
  }

  h3 {
    font-size: 1.25rem;
    line-height: 1.3;
    margin: var(--space-8) 0 var(--space-2);
  }

  h4 {
    font-size: 1.05rem;
    line-height: 1.4;
    margin: var(--space-6) 0 var(--space-1);
  }
}

/* ─── Responsive ─────────────────────────────────────────── */

@media (max-width: 600px) {
  .profile__name {
    font-size: 2.25rem;
  }

  .profile__subtitle {
    font-size: 1.1rem;
  }
}

/* ─── Reduced motion ─────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}