/* Hub page */
main.wrap { padding-block: 1.5rem 3rem; }
.kicker { font-family: var(--font-display); font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; color: var(--barn); font-size: 0.85rem; }
.hero { display: grid; gap: 1.5rem; padding-block: 1.5rem 2rem; }
.hero-title { font-size: clamp(2.2rem, 6vw, 4rem); margin: 0; }
.lead { font-size: 1.2rem; color: var(--ink-2); max-width: 60ch; }
.bridge { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 0.6rem 0.9rem; padding: 1rem 1.2rem; }
.bridge-step { display: grid; justify-items: center; text-align: center; gap: 2px; min-width: 120px; }
.bridge-step > span:first-child { font-size: 2rem; }
.bridge-step.today { background: var(--field-2); border-radius: var(--radius); padding: 0.4rem 0.8rem; }
.bridge .arrow { font-size: 1.6rem; color: var(--ink-3); }

.method { padding-block: 1rem 2rem; }
.ladder { list-style: none; padding: 0; margin: 1rem 0; display: grid; gap: 0.6rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 230px), 1fr)); }
.ladder li { display: flex; gap: 0.7rem; align-items: flex-start; background: var(--card); border: 1.5px solid var(--line); border-left: 6px solid var(--c); border-radius: var(--radius); padding: 0.7rem 0.8rem; }
.ladder .ln { display: grid; place-items: center; flex: none; width: 2rem; height: 2rem; border-radius: 50%; background: var(--c); color: #fff; font: 800 1rem var(--font-display); }
.principles summary { cursor: pointer; font-weight: 700; }
.principle { padding: 0.4rem 0; }
.principle .pe { font-size: 1.6rem; }
.principle p { margin: 0.2rem 0 0; }

.topic-cards { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); scroll-margin-top: 5rem; }
.topic-card { display: grid; gap: 0.7rem; align-content: start; }
.topic-card.skeleton { min-height: 220px; }
.tc-head { display: flex; gap: 0.8rem; align-items: flex-start; }
.tc-emoji { font-size: 2.6rem; line-height: 1; }
.tc-head h3 { margin: 0.3rem 0 0; }
.tc-head h3 a { color: inherit; text-decoration: none; }
.tc-head h3 .muted { font-weight: 600; font-size: 0.8em; }
.tc-idea { margin: 0; background: var(--harvest-2); border-left: 5px solid var(--harvest); padding: 0.5rem 0.8rem; border-radius: 0 var(--radius) var(--radius) 0; }
.tc-demos { margin: 0; padding-left: 1.3rem; }
.tc-demos li { margin-bottom: 0.25rem; }
.tc-demos a { color: var(--ink); font-weight: 700; }

.lab-card { margin-top: 1.5rem; display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); align-items: center; border-color: var(--harvest); background: linear-gradient(135deg, var(--card), var(--harvest-2)); }
.lab-card h2 { margin: 0.2rem 0 0.4rem; }
.lab-steps { margin: 0; padding-left: 1.3rem; font-size: 1.1rem; font-weight: 700; }
.lab-steps li { margin-bottom: 0.4rem; }

.recipe { padding-block: 2rem 1rem; }
.step { position: relative; padding-top: 1.4rem; }
.step-n { position: absolute; top: -0.9rem; left: 1rem; display: grid; place-items: center; width: 2rem; height: 2rem; border-radius: 50%; background: var(--field); color: #fff; font: 800 1rem var(--font-display); }
.step p { margin: 0.3rem 0 0; }

.home-foot { display: grid; gap: 0.4rem; padding-block: 2rem 1rem; border-top: 1.5px dashed var(--line); }

.topics-sec { padding-block: 1.5rem 0.5rem; }
.topics-sec h2 { margin-bottom: 0.2rem; }

.tc-head .chip, .tc-head .row { white-space: normal; }
.tc-head { min-width: 0; }
.tc-head > div { min-width: 0; }