/* ==========================================================================
   sections.css — hero, about, work, more work, experience,
   education, skills, contact
   ========================================================================== */

/* ---------- Hero ---------- */
.hero {
  position: relative;
  display: flex;
  min-block-size: 100vh;
  min-block-size: 100svh;
  padding-block: calc(var(--header-h) + var(--s-6)) var(--s-5);
  overflow: clip;
}

/* Fine graticule behind everything */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(var(--c-grid) 1px, transparent 1px) 0 0 / 100% 64px,
    linear-gradient(90deg, var(--c-grid) 1px, transparent 1px) 0 0 / 64px 100%;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 60%, #000 30%, transparent 100%);
  mask-image: radial-gradient(ellipse 80% 70% at 50% 60%, #000 30%, transparent 100%);
  pointer-events: none;
}

.hero__scope {
  position: absolute;
  inset: 0;
  inline-size: 100%;
  block-size: 100%;
  pointer-events: none;
}

.hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  row-gap: var(--s-5);
  align-content: space-between;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--s-2) var(--s-5);
}

.hero__title {
  font-family: var(--f-display);
  font-size: var(--fs-3xl);
  line-height: var(--lh-tight);
  letter-spacing: -0.03em;
}

.hero__line {
  display: block;
  overflow: hidden;
  padding-block-end: 0.06em;
}

.hero__line > span {
  display: inline-block;
}

.hero__line em {
  color: var(--c-accent);
}

.hero__line--sub {
  font-size: 0.5em;
  letter-spacing: -0.01em;
  color: var(--c-muted);
  padding-block-start: 0.1em;
}

.hero__copy {
  display: grid;
  gap: var(--s-5);
  max-inline-size: 40rem;
}

.hero__role {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  font-size: var(--fs-lg);
  font-weight: 500;
}

.hero__role::before {
  content: "";
  inline-size: 8px;
  block-size: 8px;
  flex: none;
  background: var(--c-accent-fill);
  animation: blink 2.4s steps(1) infinite;
}

.hero__lede {
  color: var(--c-ink-2);
  max-inline-size: 46ch;
}

.hero__tagline {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-1) var(--s-3);
}

.hero__tagline li + li::before {
  content: "/";
  margin-inline-end: var(--s-3);
  color: var(--c-faint);
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
}

.hero__foot {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: var(--s-4);
  padding-block-start: var(--s-4);
  border-top: var(--hair) solid var(--c-line);
}

.hero__readout {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-1) var(--s-5);
}

.hero__readout b {
  font-weight: 500;
  color: var(--c-ink);
}

.hero__clock {
  display: none;
}

.scroll-cue {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  padding-block: var(--s-2);
}

.scroll-cue__line {
  position: relative;
  inline-size: 1px;
  block-size: 2.75rem;
  background: var(--c-line);
  overflow: hidden;
}

.scroll-cue__line::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--c-accent-fill);
  transform: translateY(-100%);
  animation: cue 2s var(--ease-in-out) infinite;
}

/* Portrait */
.portrait {
  position: relative;
  justify-self: end;
  inline-size: min(78%, 22rem);
  margin: 0;
}

.portrait__head,
.portrait__caption {
  display: flex;
  justify-content: space-between;
  gap: var(--s-3);
}

.portrait__head {
  margin-block-end: var(--s-2);
}

.portrait__caption {
  margin-block-start: var(--s-3);
  flex-wrap: wrap;
}

.portrait__box {
  position: relative;
}

/* Thin offset outline frame */
.portrait__frame {
  position: absolute;
  inset: 0;
  border: var(--hair) solid var(--c-line-strong);
  transform: translate(var(--s-3), var(--s-3));
  pointer-events: none;
}

.portrait__media {
  position: relative;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  background: var(--c-surface-2);
}

.portrait__img {
  position: absolute;
  inset-inline: 0;
  inset-block-start: -6%;
  inline-size: 100%;
  block-size: 112%;
  max-inline-size: none;
  object-fit: cover;
  /* Tune this if you swap the photo: horizontal% vertical% of the focal point */
  object-position: var(--portrait-focus, 50% 42%);
  filter: grayscale(1) contrast(1.04);
  transition: filter 0.9s var(--ease-soft);
}

.portrait:hover .portrait__img {
  filter: grayscale(0) contrast(1);
}

.portrait__fallback {
  position: absolute;
  inset: 0;
  display: none;
  place-items: center;
  font-family: var(--f-display);
  font-size: clamp(4rem, 3rem + 4vw, 7rem);
  color: var(--c-muted);
  background: var(--c-surface-2);
}

.portrait.is-broken .portrait__img {
  display: none;
}

.portrait.is-broken .portrait__fallback {
  display: grid;
}

/* Crop marks at the four corners */
.portrait__mark {
  position: absolute;
  inline-size: 14px;
  block-size: 14px;
  border: 0 solid var(--c-accent);
  pointer-events: none;
}

.portrait__mark--tl {
  inset-block-start: -7px;
  inset-inline-start: -7px;
  border-block-start-width: 1px;
  border-inline-start-width: 1px;
}

.portrait__mark--br {
  inset-block-end: -7px;
  inset-inline-end: -7px;
  border-block-end-width: 1px;
  border-inline-end-width: 1px;
}

@media (min-width: 640px) {
  .hero__clock {
    display: inline;
  }
}

@media (min-width: 1024px) {
  .hero__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--s-5);
    row-gap: var(--s-6);
  }

  .hero__meta {
    grid-column: 1 / -1;
    grid-row: 1;
  }

  .hero__title {
    grid-column: 1 / 10;
    grid-row: 2;
    align-self: end;
  }

  .hero__copy {
    grid-column: 1 / 7;
    grid-row: 3;
  }

  .portrait {
    grid-column: 9 / 13;
    grid-row: 2 / 4;
    align-self: end;
    inline-size: 100%;
    max-inline-size: 26rem;
  }

  .hero__foot {
    grid-column: 1 / -1;
    grid-row: 4;
  }
}

@media (min-width: 1024px) and (max-height: 760px) {
  .portrait {
    max-inline-size: 19rem;
  }
}

/* ---------- About ---------- */
.about__grid {
  display: grid;
  gap: var(--s-8);
}

.about__bio {
  display: grid;
  gap: var(--s-5);
  align-content: start;
  font-size: var(--fs-lg);
  line-height: 1.6;
}

.about__bio p:first-child::first-letter {
  float: inline-start;
  font-family: var(--f-display);
  font-size: 4.2em;
  line-height: 0.8;
  margin-inline-end: 0.08em;
  margin-block-start: 0.06em;
  color: var(--c-accent);
}

.about__bio p + p {
  color: var(--c-ink-2);
}

.spec {
  inline-size: 100%;
  font-size: var(--fs-sm);
}

.spec caption {
  text-align: start;
  padding-block-end: var(--s-3);
}

.spec tr {
  border-top: var(--hair) solid var(--c-line);
}

.spec tr:last-child {
  border-bottom: var(--hair) solid var(--c-line);
}

.spec th,
.spec td {
  padding-block: var(--s-3);
  text-align: start;
  vertical-align: top;
}

.spec th {
  inline-size: 8.5rem;
  padding-inline-end: var(--s-4);
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-muted);
}

.spec__langs {
  display: grid;
  gap: var(--s-1);
}

.spec__langs span {
  color: var(--c-muted);
}

.readouts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-block-start: var(--s-6);
  border: var(--hair) solid var(--c-line);
}

.readout {
  display: grid;
  gap: var(--s-2);
  padding: var(--s-5);
}

.readout + .readout {
  border-inline-start: var(--hair) solid var(--c-line);
}

.readout__value {
  font-family: var(--f-display);
  font-size: clamp(3rem, 2rem + 4vw, 5.5rem);
  line-height: 0.9;
  font-variant-numeric: tabular-nums;
}

@media (min-width: 900px) {
  .about__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--s-5);
  }

  .about__bio {
    grid-column: 1 / 7;
  }

  .about__spec {
    grid-column: 8 / 13;
  }
}

/* PCB trace divider */
.trace {
  inline-size: 100%;
  block-size: auto;
  color: var(--c-line-strong);
  overflow: visible;
}

.trace path {
  fill: none;
  stroke: currentColor;
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.trace circle {
  fill: var(--c-bg);
  stroke: currentColor;
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.trace .trace__live {
  stroke: var(--c-accent);
}

/* ---------- Work ---------- */
.work__intro {
  display: grid;
  gap: var(--s-5);
  margin-block-end: var(--s-8);
}

.work__note {
  max-inline-size: 56ch;
  color: var(--c-ink-2);
  font-size: var(--fs-sm);
}

/* Mobile: one ordered column. Desktop: two staggered columns. */
.work__grid {
  display: flex;
  flex-direction: column;
  gap: var(--s-9);
}

.work__col {
  display: contents;
}

.work__empty {
  padding-block: var(--s-7);
  color: var(--c-muted);
}

@media (min-width: 900px) {
  .work__intro {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }

  .work__grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(2rem, 1rem + 5vw, 7rem);
    align-items: start;
  }

  .work__col {
    display: flex;
    flex-direction: column;
    gap: var(--s-10);
  }

  .work__col--offset {
    padding-block-start: clamp(6rem, 3rem + 8vw, 12rem);
  }
}

/* ---------- More work ---------- */
.more {
  padding-block-start: 0;
}

.section + .more {
  border-top: 0;
}

.more__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--s-4);
  margin-block-end: var(--s-5);
}

.more__title {
  font-family: var(--f-display);
  font-size: var(--fs-xl);
}

.rows {
  border-top: var(--hair) solid var(--c-line-strong);
}

.row {
  position: relative;
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr) auto;
  column-gap: var(--s-4);
  row-gap: var(--s-2);
  align-items: baseline;
  padding-block: var(--s-5);
  border-bottom: var(--hair) solid var(--c-line);
  isolation: isolate;
}

.row::before {
  content: "";
  position: absolute;
  inset: 0 calc(var(--gutter) * -0.5);
  z-index: -1;
  background: var(--c-surface);
  transform: scaleY(0);
  transform-origin: bottom;
  transition: transform 0.6s var(--ease-out);
}

.row__num {
  font-size: var(--fs-xs);
  color: var(--c-muted);
}

.row__title {
  font-family: var(--f-display);
  font-size: clamp(1.375rem, 1.1rem + 1.2vw, 2.25rem);
  line-height: 1.1;
  transition: transform 0.6s var(--ease-out), color var(--dur-fast) var(--ease-soft);
}

.row__stack,
.row__ctx {
  display: none;
  font-size: var(--fs-sm);
  color: var(--c-muted);
}

.row__link {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: var(--s-2) 0;
}

.row__link .icon {
  transition: transform var(--dur-fast) var(--ease-out);
}

.row__link:hover .icon {
  transform: translate(2px, -2px);
}

.row__desc {
  grid-column: 2 / -1;
  display: grid;
  grid-template-rows: 1fr;
  font-size: var(--fs-sm);
  color: var(--c-ink-2);
}

.row__desc > p {
  overflow: hidden;
}

.row__meta-sm {
  display: block;
  margin-block-start: var(--s-1);
}

@media (min-width: 900px) {
  .row {
    grid-template-columns: 4rem minmax(0, 5fr) minmax(0, 3fr) minmax(0, 2fr) auto;
  }

  .row__stack,
  .row__ctx {
    display: block;
  }

  .row__meta-sm {
    display: none;
  }

  .row__desc {
    grid-template-rows: 0fr;
    opacity: 0;
    transition: grid-template-rows 0.6s var(--ease-out), opacity 0.4s var(--ease-soft);
  }

  .row:hover::before,
  .row:focus-within::before {
    transform: scaleY(1);
  }

  .row:hover .row__title,
  .row:focus-within .row__title {
    transform: translateX(var(--s-4));
    color: var(--c-accent);
  }

  .row:hover .row__desc,
  .row:focus-within .row__desc {
    grid-template-rows: 1fr;
    opacity: 1;
  }
}

/* ---------- Experience (sticky storytelling) ---------- */
.exp__grid {
  display: grid;
  gap: var(--s-7);
}

.exp__aside .sec-head {
  grid-template-columns: 1fr;
  margin-block-end: var(--s-6);
}

.exp__now {
  display: none;
}

.timeline {
  --rail: 0.4rem;
  --pad: 2.5rem;
  position: relative;
  padding-inline-start: var(--pad);
}

.timeline__svg {
  position: absolute;
  inset-block: 0;
  inset-inline-start: var(--rail);
  inline-size: 2px;
  block-size: 100%;
  overflow: visible;
}

.timeline__svg line {
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.timeline__track {
  stroke: var(--c-line-strong);
}

.timeline__progress {
  stroke: var(--c-accent);
  stroke-width: 2;
  stroke-dasharray: 1;
  stroke-dashoffset: 0;
}

.motion .timeline__progress {
  stroke-dashoffset: 1;
}

.job {
  position: relative;
  display: grid;
  gap: var(--s-3);
  padding-block: var(--s-6) var(--s-8);
}

.job:first-child {
  padding-block-start: 0;
}

.job__node {
  position: absolute;
  inset-block-start: calc(var(--s-6) + 0.45em);
  inset-inline-start: calc(var(--rail) - var(--pad) - 5px);
  inline-size: 12px;
  block-size: 12px;
  background: var(--c-bg);
  border: var(--hair) solid var(--c-line-strong);
  transform: rotate(45deg);
  transition: background-color 0.4s var(--ease-soft), border-color 0.4s var(--ease-soft);
}

.job:first-child .job__node {
  inset-block-start: 0.45em;
}

.job.is-active .job__node,
html:not(.motion) .job__node {
  background: var(--c-accent-fill);
  border-color: var(--c-accent-fill);
}

.job__dates {
  display: flex;
  gap: var(--s-3);
  align-items: center;
}

.job__dates .label:first-child {
  color: var(--c-accent);
}

.job__role {
  font-family: var(--f-display);
  font-size: clamp(1.75rem, 1.3rem + 1.8vw, 3rem);
  line-height: 1.05;
}

.job__company {
  font-size: var(--fs-sm);
  color: var(--c-muted);
}

.job__points {
  display: grid;
  gap: var(--s-3);
  margin-block-start: var(--s-3);
  max-inline-size: 60ch;
}

.job__points li {
  position: relative;
  padding-inline-start: var(--s-5);
  color: var(--c-ink-2);
  font-size: var(--fs-sm);
}

.job__points li::before {
  content: "";
  position: absolute;
  inset-inline-start: 0;
  inset-block-start: 0.8em;
  inline-size: 0.75rem;
  block-size: var(--hair);
  background: var(--c-line-strong);
}

@media (min-width: 1024px) {
  .exp__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    column-gap: var(--s-8);
    align-items: start;
  }

  .exp__aside {
    position: sticky;
    inset-block-start: calc(var(--header-h) + var(--s-6));
  }

  .exp__now {
    display: grid;
    gap: var(--s-2);
    padding-block-start: var(--s-5);
    border-top: var(--hair) solid var(--c-line);
  }

  .exp__now-year {
    font-family: var(--f-display);
    font-size: clamp(4rem, 2rem + 5vw, 7.5rem);
    line-height: 0.9;
    color: var(--c-accent);
    font-variant-numeric: tabular-nums;
  }

  .exp__now-company {
    font-size: var(--fs-lg);
  }
}

/* ---------- Education & courses ---------- */
.edu__grid {
  display: grid;
  gap: var(--s-8);
}

.edu__col {
  display: grid;
  gap: var(--s-5);
  align-content: start;
}

.edu__col-title {
  padding-block-end: var(--s-3);
  border-bottom: var(--hair) solid var(--c-line-strong);
}

.entry {
  display: grid;
  gap: var(--s-3);
  padding-block-end: var(--s-6);
  border-bottom: var(--hair) solid var(--c-line);
}

.entry:last-child {
  border-bottom: 0;
}

.entry__head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--s-2) var(--s-4);
}

.entry__title {
  font-family: var(--f-display);
  font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2.25rem);
  line-height: 1.1;
}

.entry__org {
  font-size: var(--fs-sm);
  color: var(--c-muted);
}

.entry__body {
  font-size: var(--fs-sm);
  color: var(--c-ink-2);
}

.entry__project {
  display: grid;
  gap: var(--s-3);
  padding: var(--s-5);
  background:
    radial-gradient(circle, var(--c-line) 1px, transparent 1.4px) 0 0 / 12px 12px,
    var(--c-surface);
  border: var(--hair) solid var(--c-line);
}

.entry__project-title {
  font-size: var(--fs-base);
  font-weight: 500;
}

.grade {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
}

.grade::before {
  content: "";
  inline-size: 6px;
  block-size: 6px;
  background: var(--c-accent-fill);
}

@media (min-width: 900px) {
  .edu__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(2rem, 1rem + 5vw, 7rem);
  }
}

/* ---------- Skills ---------- */
.skills__marquee {
  margin-block-end: var(--s-8);
}

.skills__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
  border-top: var(--hair) solid var(--c-line-strong);
}

.skill-group {
  padding: var(--s-5) var(--s-4) var(--s-6) 0;
  border-bottom: var(--hair) solid var(--c-line);
}

.skill-group__head {
  display: flex;
  justify-content: space-between;
  gap: var(--s-3);
  margin-block-end: var(--s-4);
}

.skill-group__title {
  font-family: var(--f-display);
  font-size: var(--fs-xl);
  line-height: 1.1;
  margin-block-end: var(--s-4);
}

.skill-list {
  display: grid;
  gap: var(--s-1);
}

.skill-list li {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: var(--s-3);
  padding-block: var(--s-1);
  font-size: var(--fs-sm);
  cursor: default;
}

.skill-list__pin {
  font-size: var(--fs-2xs);
  color: var(--c-faint);
  font-variant-numeric: tabular-nums;
  transition: color var(--dur-fast) var(--ease-soft);
}

.skill-list__name {
  transition: transform 0.5s var(--ease-out), color var(--dur-fast) var(--ease-soft);
}

/* A short trace extends toward the item on hover */
.skill-list li::after {
  content: "";
  flex: 1;
  align-self: center;
  block-size: var(--hair);
  background: var(--c-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.6s var(--ease-out);
}

.skill-list li:hover .skill-list__pin {
  color: var(--c-accent);
}

.skill-list li:hover .skill-list__name {
  transform: translateX(var(--s-2));
}

.skill-list li:hover::after {
  transform: scaleX(1);
}

@media (min-width: 900px) {
  .skill-group {
    padding-inline: var(--s-5);
    border-inline-start: var(--hair) solid var(--c-line);
  }
}

/* ---------- Contact ---------- */
.contact__headline {
  font-family: var(--f-display);
  font-size: var(--fs-3xl);
  line-height: 0.95;
  letter-spacing: -0.03em;
  max-inline-size: 13ch;
  margin-block-end: var(--s-8);
}

.contact__headline em {
  color: var(--c-accent);
}

.contact__grid {
  display: grid;
  gap: var(--s-8);
}

.contact__list {
  display: grid;
  align-content: start;
  border-top: var(--hair) solid var(--c-line-strong);
}

.contact__item {
  display: grid;
  gap: var(--s-1);
  padding-block: var(--s-4);
  border-bottom: var(--hair) solid var(--c-line);
}

.contact__value {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--s-2) var(--s-4);
  font-size: var(--fs-lg);
}

.contact__value a,
.contact__copy {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  overflow-wrap: anywhere;
}

.contact__copy {
  text-align: start;
}

.contact__copy-hint {
  font-size: var(--fs-2xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.15rem 0.4rem;
  border: var(--hair) solid var(--c-line-strong);
  color: var(--c-muted);
  transition: color var(--dur-fast) var(--ease-soft), border-color var(--dur-fast) var(--ease-soft);
}

.contact__copy:hover .contact__copy-hint {
  color: var(--c-accent);
  border-color: var(--c-accent);
}

.form {
  display: grid;
  gap: var(--s-6);
}

.form__row {
  display: grid;
  gap: var(--s-6);
}

.form__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
}

.form__note {
  font-size: var(--fs-xs);
  color: var(--c-muted);
  max-inline-size: 36ch;
}

@media (min-width: 640px) {
  .form__row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .contact__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    column-gap: var(--s-5);
  }

  .contact__list {
    grid-column: 1 / 6;
  }

  .form {
    grid-column: 7 / 13;
  }
}

.back-top {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.back-top .icon {
  transition: transform var(--dur-fast) var(--ease-out);
}

.back-top:hover .icon {
  transform: translateY(-3px);
}