:root {
  --bg: #ffffff;
  --text: #0b0b0b;
  --muted: #5a5a5a;
  --accent: #1f6bff;
  --card-bg: #eee;
  --skeleton-1: #ececec;
  --skeleton-2: #f7f7f7;
  --caption-bg: rgba(0,0,0,0.72);
  --caption-fg: #ffffff;
  --logo-filter: none;
  --radius: 14px;
  --sidebar-w: 405px;
  --gutter: 16px;
  --pad: 48px;
}

[data-theme="dark"] {
  --bg: #0b0b0b;
  --text: #f2f2f2;
  --muted: #9a9a9a;
  --accent: #6fa2ff;
  --card-bg: #1a1a1a;
  --skeleton-1: #181818;
  --skeleton-2: #242424;
  --caption-bg: rgba(255,255,255,0.9);
  --caption-fg: #0b0b0b;
  --logo-filter: invert(1) hue-rotate(180deg);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "DM Sans", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  transition: background .28s ease, color .28s ease;
}

/* Subtle paper-grain overlay — fixed, covers the whole viewport */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.06;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 320 320'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.9 0'/></filter><rect width='100%' height='100%' filter='url(%23n)'/></svg>");
  background-size: 240px 240px;
  mix-blend-mode: multiply;
}
[data-theme="dark"] body::before {
  opacity: 0.12;
  mix-blend-mode: screen;
}

@media (prefers-reduced-transparency: reduce) {
  body::before { display: none; }
}

a { color: inherit; }

.layout {
  min-height: 100vh;
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  gap: 0;
}

/* ---------- Sidebar ---------- */
.sidebar {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  padding: 32px var(--pad);
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow: hidden;
}

.logo {
  margin: 0 0 6px;
  line-height: 0;
}
.logo img {
  display: block;
  width: 100%;
  max-width: 320px;
  height: auto;
}
.svg-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
  pointer-events: none;
}
.logo-svg {
  display: block;
  width: 100%;
  max-width: 320px;
  height: auto;
  color: var(--accent);
  filter: url(#logo-wave);
  transition: filter .9s cubic-bezier(.22,.61,.36,1);
  will-change: filter;
}
body.is-scrolling .logo-svg {
  filter: none;
}
@media (prefers-reduced-motion: reduce) {
  .logo-svg { filter: none; }
}

.role {
  font-family: "DM Mono", ui-monospace, monospace;
  font-size: 14px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0;
}

.bio {
  font-family: "DM Mono", ui-monospace, monospace;
  font-size: 13px;
  line-height: 1.6;
  color: var(--text);
  margin: -10px 0 0;
  max-width: 300px;
}

.cta-row {
  margin-top: 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.cv-link {
  font-family: "DM Mono", ui-monospace, monospace;
  font-size: 13px;
  text-decoration: underline;
  text-underline-offset: 3px;
  color: var(--text);
}
.cv-link:hover { color: var(--accent); }

.cta {
  display: inline-block;
  line-height: 0;
  transform-origin: center;
  transition: transform .15s cubic-bezier(.2,.7,.2,1), filter .15s ease;
  will-change: transform;
}
.cta img {
  display: block;
  height: 54px;
  width: auto;
  transition: filter .15s ease;
}
.cta:hover {
  transform: scale(0.97);
  filter: brightness(0.96);
}
.cta:active {
  transform: scale(0.92);
  filter: brightness(0.88);
  transition-duration: .08s;
}

.links {
  margin-top: 6px;
  display: flex;
  gap: 22px;
  font-family: "DM Mono", ui-monospace, monospace;
  font-size: 13px;
}
.links a {
  text-decoration: none;
  position: relative;
}
.links a { text-decoration: underline; text-underline-offset: 3px; }
.links a:hover { color: var(--accent); }

.socials {
  margin-top: 24px;
  display: flex;
  gap: 14px;
  align-items: center;
}
.socials a {
  display: inline-flex;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  transition: transform .18s ease, opacity .18s ease;
  opacity: 0.85;
}
.socials a:hover {
  transform: translateY(-2px);
  opacity: 1;
}
.socials img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}
[data-theme="dark"] .socials img {
  filter: invert(1) brightness(1.1);
}

.site-footer {
  margin-top: 2px;
  font-family: "DM Mono", ui-monospace, monospace;
  font-size: 12px;
  text-transform: lowercase;
  color: var(--muted);
}
.site-footer a {
  text-decoration: none;
  transition: color .18s ease;
}
.site-footer a:hover { color: var(--accent); }

/* ---------- Theme toggle ---------- */
.theme-toggle {
  position: fixed;
  bottom: 20px;
  right: 24px;
  z-index: 20;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid color-mix(in srgb, var(--text) 18%, transparent);
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: 15px;
  line-height: 1;
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}
.theme-toggle:hover { transform: rotate(12deg); }

/* ---------- Gallery ---------- */
.gallery {
  padding: var(--pad) var(--pad) var(--pad) 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gutter);
}

.column {
  display: flex;
  flex-direction: column;
  gap: var(--gutter);
}

.card {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--card-bg);
  cursor: pointer;

  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1);
}
.card.revealed { opacity: 1; transform: translateY(0); }

/* Skeleton shimmer while image loads */
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    var(--skeleton-1) 0%,
    var(--skeleton-2) 50%,
    var(--skeleton-1) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.6s linear infinite;
  opacity: 1;
  transition: opacity .35s ease;
  z-index: 1;
  pointer-events: none;
}
.card.loaded::before { opacity: 0; }

@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.card img {
  position: relative;
  z-index: 2;
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
  opacity: 0;
  transition: transform .6s cubic-bezier(.2,.7,.2,1), opacity .45s ease;
}
.card.loaded img { opacity: 1; }
.card:hover img { transform: scale(1.03); }

.card figcaption {
  position: absolute;
  z-index: 3;
  left: 12px;
  bottom: 12px;
  padding: 6px 10px;
  background: var(--caption-bg);
  color: var(--caption-fg);
  font-family: "DM Mono", ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.02em;
  border-radius: 6px;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity .22s ease, transform .22s ease;
  pointer-events: none;
  max-width: calc(100% - 24px);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.card:hover figcaption,
.card:focus-visible figcaption,
.card:focus-within figcaption {
  opacity: 1;
  transform: translateY(0);
}

.card-link {
  position: absolute;
  inset: 0;
  z-index: 4;
  display: block;
  text-indent: -9999px;
  overflow: hidden;
  border-radius: inherit;
}
.card-link:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Dark mode logo inversion (if logo is dark artwork on transparent bg) */
[data-theme="dark"] .logo img {
  filter: var(--logo-filter);
}

/* ---------- Mobile drawer controls ---------- */
.mobile-header,
.menu-toggle,
.sidebar-close,
.sidebar-backdrop {
  display: none;
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  :root { --pad: 24px; }

  .layout {
    grid-template-columns: 1fr;
  }

  /* Sidebar becomes an off-canvas drawer */
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: min(340px, 88vw);
    max-width: 100%;
    z-index: 40;
    background: var(--bg);
    padding: 80px var(--pad) var(--pad);
    overflow-y: auto;
    box-shadow: 0 24px 60px -20px rgba(0, 0, 0, 0.35);
    transform: translateX(-100%);
    transition: transform .35s cubic-bezier(.2,.7,.2,1);
    will-change: transform;
  }
  .sidebar.open { transform: translateX(0); }

  /* Mobile top header (hamburger + logo) */
  .mobile-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 45;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    padding: 12px 16px;
    background: color-mix(in srgb, var(--bg) 85%, transparent);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid color-mix(in srgb, var(--text) 8%, transparent);
    min-height: 72px;
  }
  .mobile-logo {
    display: inline-block;
    line-height: 0;
  }
  .mobile-logo img {
    display: block;
    height: 48px;
    width: auto;
    transition: opacity .2s ease;
  }
  .mobile-logo .logo-svg {
    display: block;
    height: 48px;
    width: auto;
    max-width: none;
    transition: opacity .2s ease, filter .25s ease;
  }
  [data-theme="dark"] .mobile-logo img { filter: var(--logo-filter); }

  /* Hide header logo while drawer is open (drawer has its own logo) */
  body.drawer-open .mobile-logo {
    opacity: 0;
    pointer-events: none;
  }

  /* Hamburger */
  .menu-toggle {
    position: relative;
    top: auto;
    left: auto;
    z-index: 50;
    width: 40px;
    height: 40px;
    display: grid;
    grid-template-rows: repeat(3, 2px);
    align-content: center;
    justify-items: center;
    gap: 5px;
    border-radius: 50%;
    border: 1px solid color-mix(in srgb, var(--text) 18%, transparent);
    background: var(--bg);
    color: var(--text);
    cursor: pointer;
    padding: 0;
    transition: transform .2s ease, background .2s ease;
  }
  .menu-toggle span {
    display: block;
    width: 16px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    transition: transform .28s ease, opacity .2s ease;
  }
  .menu-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }
  .menu-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  /* Close button inside sidebar */
  .sidebar-close {
    display: block;
    position: absolute;
    top: 12px;
    right: 14px;
    width: 36px;
    height: 36px;
    font-size: 24px;
    line-height: 1;
    background: transparent;
    border: 0;
    color: var(--text);
    cursor: pointer;
    padding: 0;
  }

  /* Backdrop */
  .sidebar-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 30;
    background: rgba(0, 0, 0, 0.45);
    opacity: 0;
    pointer-events: none;
    transition: opacity .28s ease;
  }
  .sidebar-backdrop.show {
    opacity: 1;
    pointer-events: auto;
  }

  /* Gallery full-width, pushed below fixed header */
  .gallery {
    padding: 80px var(--pad) var(--pad);
  }

  /* On mobile, use the theme toggle inside the header — hide the fixed one */
  body > .theme-toggle { display: none; }
  .mobile-header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .mobile-header-actions .theme-toggle {
    position: relative;
    top: auto;
    right: auto;
    bottom: auto;
    left: auto;
  }

  /* Lock body scroll when drawer open */
  body.drawer-open {
    overflow: hidden;
  }
}

@media (max-width: 520px) {
  .gallery {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }
  .card figcaption {
    font-size: 10px;
    left: 8px;
    bottom: 8px;
    padding: 5px 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .card { opacity: 1; transform: none; transition: none; }
  .card::before { animation: none; }
  .card img { transition: opacity .2s ease; }
}