/* =============================================================
   Subpage components — Skills, Certifications, Blog, Thank-you
   Depends on the tokens defined in main.css
   ============================================================= */

/* ---------- SKILLS ---------- */
.skill-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.5rem;
  padding-block: clamp(2rem, 5vw, 3.5rem);
  border-top: 1px solid var(--line);
}
@media (min-width: 900px) {
  .skill-block {
    grid-template-columns: minmax(0, 0.34fr) minmax(0, 0.66fr);
    gap: clamp(2rem, 5vw, 5rem);
  }
}
.skill-block:last-child { border-bottom: 1px solid var(--line); }

.skill-block__head { display: flex; flex-direction: column; gap: 0.85rem; }
.skill-block__title { font-size: var(--step-2); }
.skill-block__note { color: var(--muted); font-size: var(--step--1); max-width: 34ch; }

.skill-list { display: grid; gap: 0; }
.skill {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 1rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--line);
}
.skill:last-child { border-bottom: 0; }
.skill__name { font-weight: 600; font-size: var(--step-0); }
.skill__meta {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
}
/* ---------- CERTIFICATIONS ---------- */
.cert-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-top: 1px solid var(--line);
}
@media (min-width: 760px) { .cert-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1200px) { .cert-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }

.cert {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  width: 100%;
  text-align: left;
  color: inherit;
  padding: clamp(1.75rem, 3.5vw, 2.5rem) clamp(1.25rem, 2.5vw, 2rem) clamp(1.75rem, 3.5vw, 2.5rem) 0;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.4s var(--ease);
}
@media (min-width: 760px) {
  .cert { border-left: 1px solid var(--line); padding-left: clamp(1.25rem, 2.5vw, 2rem); }
  .cert:nth-child(odd) { border-left: 0; padding-left: 0; }
}
@media (min-width: 1200px) {
  .cert:nth-child(odd) { border-left: 1px solid var(--line); padding-left: clamp(1.25rem, 2.5vw, 2rem); }
  .cert:nth-child(3n+1) { border-left: 0; padding-left: 0; }
}
.cert:hover { background: var(--surface); }
.cert__top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.cert__year {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: 0.1em;
  color: var(--ember);
}
.cert__icon { font-size: 1.15rem; color: var(--faint); transition: transform 0.4s var(--ease), color 0.3s var(--ease); }
.cert:hover .cert__icon { color: var(--ember); transform: rotate(-45deg); }
.cert__title { font-size: var(--step-1); line-height: 1.15; }
.cert__issuer { color: var(--muted); font-size: var(--step--1); }
.cert__skills { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 0.35rem; }

/* Certificate lightbox */
.cert-modal__figure {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  background: var(--surface-2);
  min-height: 220px;
  display: grid;
  place-items: center;
  margin-bottom: 1.25rem;
}
.cert-modal__figure img { width: 100%; height: auto; opacity: 0; transition: opacity 0.4s var(--ease); }
.cert-modal__figure img.loaded { opacity: 1; }
.cert-modal__loading {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
  text-align: center;
  padding: 1rem;
}
.cert-modal__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; }

/* Timeline */
.timeline { position: relative; border-left: 1px solid var(--line); padding-left: clamp(1.5rem, 4vw, 3rem); }
.timeline__item { position: relative; padding-bottom: clamp(2rem, 5vw, 3rem); }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__item::before {
  content: "";
  position: absolute;
  left: calc(clamp(1.5rem, 4vw, 3rem) * -1 - 4.5px);
  top: 0.45rem;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: var(--ember);
}
.timeline__year {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: 0.12em;
  color: var(--ember);
  display: block;
  margin-bottom: 0.5rem;
}
.timeline__title { font-size: var(--step-1); margin-bottom: 0.4rem; }
.timeline__text { color: var(--muted); font-size: var(--step--1); max-width: 52ch; }

/* ---------- BLOG ---------- */
.post-list { border-top: 1px solid var(--line); }
.post {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.85rem;
  padding: clamp(1.75rem, 4vw, 2.75rem) 0;
  border-bottom: 1px solid var(--line);
  position: relative;
  isolation: isolate;
  transition: color 0.4s var(--ease);
}
@media (min-width: 900px) {
  .post {
    grid-template-columns: minmax(120px, 0.18fr) minmax(0, 0.62fr) minmax(0, 0.2fr);
    gap: clamp(1.5rem, 4vw, 3rem);
    align-items: start;
  }
}
.post::before {
  content: "";
  position: absolute;
  inset: 0 calc(var(--gutter) * -0.5);
  z-index: -1;
  background: var(--surface);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
}
.post:hover::before { opacity: 1; }
.post__date {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
  padding-top: 0.35rem;
}
.post__title { font-size: var(--step-2); line-height: 1.1; margin-bottom: 0.65rem; transition: color 0.3s var(--ease); }
.post:hover .post__title { color: var(--ember); }
.post__excerpt { color: var(--muted); font-size: var(--step--1); line-height: 1.65; max-width: 58ch; }
.post__tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 1rem; }
.post__read {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--faint);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding-top: 0.35rem;
}
@media (min-width: 900px) { .post__read { justify-content: flex-end; } }

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: clamp(2rem, 5vw, 3rem);
}
.filter {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.55rem 1rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--muted);
  transition: all 0.3s var(--ease);
}
.filter:hover { border-color: var(--fg); color: var(--fg); }
.filter.is-active { background: var(--ember); border-color: var(--ember); color: #fff; }

.empty-state {
  padding: clamp(2rem, 6vw, 4rem) 0;
  text-align: center;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ---------- THANK YOU ---------- */
.confirm {
  min-height: 100svh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 8rem var(--gutter) 4rem;
}
.confirm__mark {
  width: 78px; height: 78px;
  border-radius: 50%;
  display: grid; place-items: center;
  border: 1px solid var(--ember);
  color: var(--ember);
  font-size: 1.6rem;
  margin: 0 auto 2rem;
}
.confirm__title { font-size: var(--step-3); margin-bottom: 1rem; }
.confirm__text { color: var(--muted); max-width: 46ch; margin: 0 auto 2.5rem; }
.confirm__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; justify-content: center; }