/* SKILLS - academic skills + tool cards */
.skills__block + .skills__block { margin-top: clamp(5rem, 12vh, 9rem); }
.skills__label { display: flex; align-items: center; gap: 1rem; margin-bottom: 2.4rem; font-size: clamp(1.3rem, 2.4vw, 1.8rem); }
.skills__label span { font-size: 0.8rem; font-family: var(--font-mono); color: var(--accent); padding: 0.3rem 0.7rem; border-radius: var(--r-pill); box-shadow: var(--neu-in); }

/* Academic: core */
.acad-core { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.4rem, 3vw, 2.4rem); }
.acad-card { padding: clamp(1.6rem, 3vw, 2.2rem); display: flex; flex-direction: column; gap: 1rem; border-radius: var(--r-lg); }
.acad-card:hover .icon-tile { box-shadow: var(--neu-in); }
.acad-card .icon-tile { transition: box-shadow 0.4s; }
.acad-card__top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.6rem; }
.acad-card__num { font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-dim); letter-spacing: 0.1em; }
.acad-card h4 { font-size: 1.35rem; }
.acad-card p { font-size: 0.98rem; }

/* Academic: data craft stepper */
.acad-flow { margin-top: clamp(1.4rem, 3vw, 2.4rem); padding: clamp(1.6rem, 3.5vw, 2.8rem); border-radius: var(--r-lg); }
.acad-flow__title { font-family: var(--font-display); font-weight: 600; color: var(--text); margin-bottom: 2rem; }
.acad-steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1.4rem; counter-reset: s; position: relative; }
.acad-steps::before { content: ''; position: absolute; left: 6%; right: 6%; top: 1.7rem; height: 2px; background: repeating-linear-gradient(90deg, var(--line) 0 8px, transparent 8px 16px); }
.acad-step { position: relative; display: flex; flex-direction: column; gap: 0.5rem; align-items: flex-start; }
.acad-step .icon-tile { margin-bottom: 0.8rem; }
.acad-step em { position: absolute; top: 0; right: 0; font-style: normal; font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-dim); }
.acad-step b { font-family: var(--font-display); font-size: 1rem; line-height: 1.25; }
.acad-step small { font-size: 0.86rem; color: var(--text-dim); line-height: 1.5; }

/* Academic: delivery */
.acad-wide { margin-top: clamp(1.4rem, 3vw, 2.4rem); padding: clamp(1.6rem, 3vw, 2.4rem); display: grid; grid-template-columns: auto 1fr auto; gap: 2rem; align-items: center; border-radius: var(--r-lg); }
.acad-wide h4 { font-size: 1.4rem; margin-bottom: 0.5rem; }
.acad-wide h4 .acad-card__num { margin-right: 0.6rem; }
.acad-wide__path { display: flex; align-items: center; gap: 0.8rem; }
.acad-wide__path span { padding: 0.55rem 1.1rem; border-radius: var(--r-pill); box-shadow: var(--neu-in); font-size: 0.85rem; font-weight: 600; white-space: nowrap; }
.acad-wide__path i { width: 1.6rem; height: 2px; background: var(--accent); position: relative; border-radius: 2px; }
.acad-wide__path i::after { content: ''; position: absolute; right: 0; top: -3px; width: 8px; height: 8px; border-top: 2px solid var(--accent); border-right: 2px solid var(--accent); rotate: 45deg; }

/* Tools */
.filters { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-bottom: 2.6rem; }
.filter { padding: 0.65rem 1.3rem; border-radius: var(--r-pill); font-size: 0.88rem; font-weight: 600; color: var(--text-dim); background: var(--bg); box-shadow: var(--neu-out-sm); transition: box-shadow 0.35s, color 0.3s; }
.filter:hover { color: var(--text); }
.filter.is-active { box-shadow: var(--neu-in); color: var(--accent); }

.tools { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: clamp(1rem, 2.4vw, 1.8rem); }
.tool-card { border-radius: var(--r-md); transition: translate 0.45s var(--ease-out), box-shadow 0.45s; }
.tool-card[hidden] { display: none; }
.tool-card:hover { translate: 0 -6px; box-shadow: var(--neu-out), 0 18px 40px -22px var(--tc); }
.tool-card__in { padding: 1.5rem 1rem 1.3rem; display: flex; flex-direction: column; align-items: center; text-align: center; gap: 0.25rem; }
.tool-card b { font-family: var(--font-display); font-size: 0.98rem; margin-top: 0.9rem; }
.tool-card small { font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-dim); }
.tool-card.pop { animation: pop 0.6s var(--ease-out) both; animation-delay: var(--pd, 0ms); }
@keyframes pop { from { opacity: 0; scale: 0.88; } to { opacity: 1; scale: 1; } }

/* Shared tool icon (also used by the hero strip) */
.tool-icon {
  display: grid; place-items: center; width: 3.6rem; height: 3.6rem; border-radius: 1.1rem; flex: none;
  background: var(--icon-well, #f1f2f6); box-shadow: var(--neu-in);
}
.tool-icon img { width: 58%; height: 58%; object-fit: contain; }
.tool-icon.is-mono {
  background: linear-gradient(145deg, color-mix(in srgb, var(--tc) 85%, #fff 15%), color-mix(in srgb, var(--tc) 65%, #000 35%));
  box-shadow: var(--neu-out-sm); color: #fff; font-family: var(--font-display); font-weight: 800; font-size: 1.05rem; letter-spacing: -0.03em;
}

@media (max-width: 1023px) {
  .acad-core { grid-template-columns: 1fr; }
  .acad-steps { grid-template-columns: repeat(3, 1fr); row-gap: 2rem; }
  .acad-steps::before { display: none; }
  .acad-wide { grid-template-columns: auto 1fr; }
  .acad-wide__path { grid-column: 1 / -1; flex-wrap: wrap; }
}
@media (max-width: 640px) {
  .acad-steps { grid-template-columns: 1fr 1fr; }
  .tools { grid-template-columns: repeat(2, 1fr); }
  .acad-wide { grid-template-columns: 1fr; }
}

/* Refinements: keep the academic cards readable without making the section feel crowded. */
.acad-core { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(1rem, 2vw, 1.5rem); }
.acad-card { gap: 0.8rem; padding: clamp(1.35rem, 2.4vw, 1.9rem); }
.acad-card h4 { font-size: clamp(1.08rem, 1.35vw, 1.28rem); line-height: 1.25; }
.acad-card p { font-size: 0.91rem; line-height: 1.65; }
.acad-flow__title { font-size: 1.1rem; }
.acad-step small { max-width: 15rem; }
@media (max-width: 1023px) {
  .acad-core { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 620px) {
  .acad-core { grid-template-columns: 1fr; }
}