/* ── Guides page ── */
.guides-hero{padding:160px 0 80px;background:linear-gradient(145deg,#02050c,#07101f 60%,#0a1a2e);text-align:center}
.guides-hero h1{font-size:clamp(2rem,5vw,3.2rem);color:#fff;margin:.6rem 0 1rem}
.guides-hero p{color:#8195aa;font-size:1.05rem;max-width:540px;margin:0 auto}
.guides-filter{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:40px}
.guides-filter button{padding:8px 18px;border-radius:20px;border:1px solid var(--line);background:#fff;color:#344054;font-size:.8rem;font-weight:700;cursor:pointer;transition:background .2s,border-color .2s,color .2s,transform .15s;}
.guides-filter button.active,.guides-filter button:hover{background:var(--blue);border-color:var(--blue);color:#fff;transform:translateY(-1px)}
.guides-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
/* Smooth filter: cards fade+scale out instead of hard display:none */
.guide-card{background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden;box-shadow:0 8px 28px rgba(15,23,42,.05);transition:transform .22s,box-shadow .22s,opacity .28s ease,scale .28s ease;display:flex;flex-direction:column;will-change:transform,opacity}
.guide-card.is-hidden{opacity:0;scale:.96;pointer-events:none;position:absolute;visibility:hidden}
.guide-card:hover{transform:translateY(-4px);box-shadow:0 16px 44px rgba(15,23,42,.1)}
/* Guide card thumbnail — coloured SVG placeholder */
.guide-card-thumb{width:100%;aspect-ratio:16/9;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.guide-card-thumb svg{width:100%;height:100%;position:absolute;inset:0}
.guide-card-thumb .thumb-icon{position:relative;z-index:1;font-size:2.2rem;color:rgba(255,255,255,.9)}
.guide-card-img{width:100%;aspect-ratio:16/9;object-fit:cover;display:block;background:#e8f4fb}
.guide-card-body{padding:24px;flex:1;display:flex;flex-direction:column;gap:10px}
.guide-tag{display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:20px;background:#eef6fb;color:var(--blue);font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;align-self:flex-start}
.guide-card-body h3{font-size:1rem;color:var(--ink);line-height:1.45;margin:0}
.guide-card-body p{color:var(--muted);font-size:.85rem;line-height:1.7;flex:1;margin:0}
.guide-card-footer{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;border-top:1px solid var(--line)}
.guide-card-footer span{color:#8195aa;font:600 11px "JetBrains Mono"}
.guide-card-footer a{color:var(--blue);font-size:.8rem;font-weight:700;display:flex;align-items:center;gap:5px;transition:color .18s,gap .18s}
.guide-card-footer a:hover{color:var(--cyan);gap:8px}
@media(max-width:1000px){.guides-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.guides-grid{grid-template-columns:1fr}}