/* ── Animations ── */
body.is-loading * {
  animation: none !important;
  transition: none !important;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); filter: blur(6px); }
  to   { opacity: 1; transform: translateY(0); filter: blur(0px); }
}

header h1,
header .role,
header .tagline,
header nav {
  opacity: 0;
  transform: translateY(18px);
  filter: blur(6px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              filter 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

header h1.is-visible,
header .role.is-visible,
header .tagline.is-visible,
header nav.is-visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0px);
}

.fade-up {
  opacity: 0;
  transform: translateY(18px);
  filter: blur(6px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              filter 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0px);
}

/* Work section — slower fade up from further below (projects feel less abrupt) */
#work > .section-label.fade-up,
#work .work-item.fade-up {
  transform: translateY(52px);
  filter: blur(0);
  transition: opacity 1.45s cubic-bezier(0.22, 1, 0.32, 1),
              transform 1.45s cubic-bezier(0.22, 1, 0.32, 1),
              filter 1.45s cubic-bezier(0.22, 1, 0.32, 1);
}

#work > .section-label.fade-up.is-visible,
#work .work-item.fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}


/* ── Reset & Base ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --black: #0a0a0a;
  --gray: #666;
  --gray-light: #aaa;
  --border: #e5e5e5;
  --bg: #fff;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg);
  color: var(--black);
  font-family: var(--font);
  font-weight: 400;
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  opacity: 0.6;
}

/* ── Layout ── */
main {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Header ── */
header {
  padding: 72px 0 64px;
}

.header-top {
  margin-bottom: 16px;
}

h1 {
  font-size: clamp(28px, 5vw, 40px);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin-bottom: 8px;
}

.role {
  font-size: 15px;
  color: var(--gray);
  font-weight: 400;
}

.role a {
  border-bottom: 1px solid var(--border);
  transition: border-color 0.15s;
}

.role a:hover {
  opacity: 1;
  border-color: var(--gray);
}

.tagline {
  font-size: 15px;
  color: var(--gray);
  margin: 20px 0 32px;
  max-width: 520px;
  line-height: 1.65;
}

nav {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

nav a {
  font-size: 14px;
  color: var(--black);
  font-weight: 400;
  transition: opacity 0.15s;
}

nav a:hover {
  opacity: 0.4;
}

/* ── Work Section ── */
#work {
  padding: 0 0 80px;
}

.work-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}

.work-item {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border: 1px solid var(--border);
  margin: -1px 0 0 -1px;
  transition: z-index 0s;
}

.work-item:hover {
  z-index: 1;
  border-color: #bbb;
}

.work-item--featured {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.work-item--featured .work-item__image {
  height: 100%;
  min-height: 260px;
}

.work-item__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  position: relative;
}

.work-placeholder {
  width: 100%;
  height: 100%;
  min-height: 260px;
  display: flex;
  align-items: flex-end;
  padding: 20px;
}

.work-label {
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
}

.work-placeholder.dark .work-label {
  color: rgba(255,255,255,0.4);
}

.work-placeholder.light .work-label {
  color: rgba(0,0,0,0.25);
}

.work-item__meta {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.work-item__meta h2 {
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.work-item__meta p {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.65;
  flex: 1;
}

.work-item__meta strong {
  color: var(--black);
  font-weight: 500;
}

.tag {
  font-size: 11px;
  color: var(--gray-light);
  letter-spacing: 0.04em;
  margin-top: 4px;
}

/* ── Glitch word ── */
.glitch-container {
  position: relative;
  display: inline-block;
}

.glitch-word {
  display: inline-block;
  background: #e5e5e5;
  padding: 0 6px;
  border-radius: 3px;
  cursor: default;
}

.glitch-word.is-glitching::before,
.glitch-word.is-glitching::after {
  content: attr(data-text);
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  overflow: hidden;
  pointer-events: none;
}

.glitch-word.is-glitching::before {
  color: hsl(320, 100%, 59%);
  animation: glitch-top 0.4s steps(3) forwards;
}

.glitch-word.is-glitching::after {
  color: rgb(49, 255, 49);
  animation: glitch-bot 0.4s steps(3) forwards;
}

@keyframes glitch-top {
  0%   { clip-path: inset(0 0 70% 0); transform: translateX(-3px); opacity: 1; }
  30%  { clip-path: inset(10% 0 55% 0); transform: translateX(3px); }
  60%  { clip-path: inset(35% 0 30% 0); transform: translateX(-2px); }
  100% { clip-path: inset(0 0 100% 0); transform: translateX(0); opacity: 0; }
}

@keyframes glitch-bot {
  0%   { clip-path: inset(60% 0 0 0); transform: translateX(3px); opacity: 1; }
  30%  { clip-path: inset(45% 0 10% 0); transform: translateX(-3px); }
  60%  { clip-path: inset(70% 0 0 0); transform: translateX(2px); }
  100% { clip-path: inset(100% 0 0 0); transform: translateX(0); opacity: 0; }
}

/* ── Glitch tooltip ── */
.glitch-tooltip {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  transform: translateY(-4px);
  background: var(--black);
  color: #fff;
  font-size: 12px;
  line-height: 1.65;
  padding: 12px 16px;
  border-radius: 6px;
  width: 260px;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.18s ease, transform 0.18s ease;
  white-space: normal;
  z-index: 10;
}

.glitch-tooltip::after {
  content: '';
  position: absolute;
  bottom: 100%;
  left: 20px;
  border: 5px solid transparent;
  border-bottom-color: var(--black);
}

.glitch-container:hover .glitch-tooltip {
  opacity: 1;
  transform: translateY(0);
}

/* ── Section label ── */
.section-label {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gray-light);
  padding: 0 0 16px;
}

#work > .section-label:first-child {
  padding-top: 0;
}

#work > .section-label + .work-grid + .section-label {
  padding-top: 48px;
}

/* ── Personal project links ── */
.work-item__links {
  display: flex;
  gap: 12px;
}

.work-item__links a {
  font-size: 12px;
  color: var(--black);
  border-bottom: 1px solid var(--border);
  padding-bottom: 1px;
  transition: border-color 0.15s, opacity 0.15s;
}

.work-item__links a:hover {
  opacity: 1;
  border-color: var(--black);
}

/* ── How I Build Section ── */
#how-i-build {
  padding: 64px 0;
  border-top: 1px solid var(--border);
}

.section-heading {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray-light);
  margin-bottom: 32px;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
  border-left: 1px solid var(--border);
}

.process-grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.process-step {
  padding: 28px 24px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.process-num {
  display: block;
  font-size: 11px;
  color: var(--gray-light);
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}

.process-step h3 {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.65;
}

/* ── About Section ── */
#about {
  padding: 64px 0;
  border-top: 1px solid var(--border);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}

#about h2 {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray-light);
  margin-bottom: 20px;
}

.about-text p {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.75;
  margin-bottom: 16px;
}

.about-text p:last-child {
  margin-bottom: 0;
}

.about-skills {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.skill-group h3 {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--black);
  margin-bottom: 6px;
}

.skill-group p {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.7;
}

/* ── Back to top ── */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 40px;
  height: 40px;
  background: var(--black);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 16px;
  cursor: pointer;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  pointer-events: none;
  z-index: 100;
}

.back-to-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.back-to-top:hover {
  opacity: 0.7;
}

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  padding: 32px 0 48px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

footer p {
  font-size: 13px;
  color: var(--gray-light);
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  font-size: 13px;
  color: var(--gray);
  transition: opacity 0.15s;
}

.footer-links a:hover {
  opacity: 0.5;
}

/* ── Responsive ── */
@media (max-width: 640px) {
  header {
    padding: 48px 0 48px;
  }

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

  .work-item--featured {
    grid-column: span 1;
    grid-template-columns: 1fr;
  }

  .work-item--featured .work-item__image {
    min-height: 200px;
  }

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

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}