/* =============================================
   Lesson 02 — Digital Wallet Explainer
   Unique component styles
   ============================================= */

/* WALLET VISUAL (hero) */
.wallet-visual { margin-top:52px; opacity:0; animation:fadeUp .8s ease .8s forwards; }
.wallet-card { background:linear-gradient(135deg,var(--navy-light),rgba(3,136,166,0.15)); border:1px solid rgba(3,136,166,.35); border-radius:18px; padding:28px 32px; width:340px; position:relative; overflow:hidden; box-shadow:0 20px 60px rgba(0,0,0,.4); }
.wallet-card::before { content:""; position:absolute; top:-30px; right:-30px; width:120px; height:120px; border-radius:50%; background:radial-gradient(circle,rgba(3,136,166,.2),transparent 70%); pointer-events:none; }
.wallet-chip { display:flex; align-items:center; gap:12px; margin-bottom:20px; }
.chip-icon { width:40px; height:30px; background:linear-gradient(135deg,rgba(3,136,166,.5),rgba(42,176,212,.3)); border-radius:6px; border:1px solid rgba(3,136,166,.4); }
.wallet-label { font-family:"DM Mono",monospace; font-size:9px; letter-spacing:.2em; color:var(--blue); text-transform:uppercase; }
.wallet-address { font-family:"DM Mono",monospace; font-size:.72rem; color:var(--white-dim); margin-bottom:20px; letter-spacing:.04em; }
.wallet-balance { font-family:"Lora",serif; font-size:1.6rem; font-weight:700; color:var(--white); }
.wallet-assets { display:flex; gap:10px; margin-top:14px; }
.asset-pill { background:rgba(3,136,166,.15); border:1px solid rgba(3,136,166,.25); border-radius:20px; padding:4px 12px; font-family:"DM Mono",monospace; font-size:.7rem; color:var(--blue-light); }

/* KEY ANALOGY DIAGRAM */
.key-diagram { margin-top:52px; display:grid; grid-template-columns:1fr 60px 1fr; gap:0; align-items:center; }
.key-box { background:var(--navy-light); border-radius:16px; padding:32px; border:1px solid rgba(3,136,166,.15); }
.key-box .key-label { font-family:"DM Mono",monospace; font-size:9px; letter-spacing:.2em; color:var(--blue); text-transform:uppercase; margin-bottom:12px; }
.key-box h3 { font-family:"Lora",serif; font-size:1.1rem; margin-bottom:10px; }
.key-box p { font-size:.88rem; color:var(--white-dim); margin:0; line-height:1.7; }
.key-box .key-example { font-family:"DM Mono",monospace; font-size:.72rem; color:rgba(3,136,166,.7); margin-top:12px; word-break:break-all; line-height:1.6; }
.key-arrow { display:flex; align-items:center; justify-content:center; color:var(--blue); }

/* WALLET TYPES */
.type-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(280px,1fr)); gap:22px; margin-top:52px; }
.type-card { background:var(--navy-light); border:1px solid rgba(3,136,166,.14); border-radius:16px; padding:34px 30px; position:relative; overflow:hidden; transition:transform .3s,border-color .3s,box-shadow .3s; }
.type-card::before { content:""; position:absolute; top:0; left:0; width:100%; height:3px; background:linear-gradient(90deg,var(--blue),var(--blue-light)); }
.type-card:hover { transform:translateY(-5px); border-color:rgba(3,136,166,.35); box-shadow:0 20px 60px rgba(0,0,0,.4); }
.type-card .icon { width:50px; height:50px; border-radius:12px; background:var(--blue-dim); display:flex; align-items:center; justify-content:center; margin-bottom:20px; }
.type-card h3 { font-family:"Lora",serif; font-size:1.1rem; margin-bottom:8px; }
.type-card .type-sub { font-family:"DM Mono",monospace; font-size:9px; letter-spacing:.15em; color:var(--blue); text-transform:uppercase; margin-bottom:10px; }
.type-card p { font-size:.88rem; color:var(--white-dim); line-height:1.75; margin:0; }
.type-card .best-for { margin-top:14px; background:var(--blue-faint); border-radius:8px; padding:10px 14px; font-size:.8rem; color:var(--blue-light); }

/* HOT VS COLD SPECTRUM */
.spectrum-bar { margin-top:52px; }
.spectrum-track { position:relative; height:8px; background:linear-gradient(90deg,var(--green),var(--blue),var(--orange)); border-radius:4px; margin:20px 0 48px; }
.spectrum-labels { display:flex; justify-content:space-between; font-family:"DM Mono",monospace; font-size:10px; letter-spacing:.1em; color:var(--white-dim); text-transform:uppercase; }
.spectrum-items { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; }
.spectrum-item { text-align:center; }
.spectrum-item h4 { font-family:"Lora",serif; font-size:.95rem; margin-bottom:6px; }
.spectrum-item p { font-size:.8rem; color:var(--white-dim); line-height:1.5; }
.spectrum-dot { width:10px; height:10px; border-radius:50%; margin:0 auto 10px; }

/* SECURITY TIPS */
.tip-list { display:flex; flex-direction:column; gap:16px; margin-top:52px; }
.tip-row { display:flex; gap:20px; align-items:flex-start; background:var(--navy-light); border:1px solid rgba(3,136,166,.12); border-radius:14px; padding:24px 28px; transition:border-color .25s; }
.tip-row:hover { border-color:rgba(3,136,166,.35); }
.tip-num { font-family:"DM Mono",monospace; font-size:1.1rem; color:var(--blue); font-weight:500; flex-shrink:0; width:32px; }
.tip-row h4 { font-family:"Lora",serif; font-size:1rem; margin-bottom:6px; }
.tip-row p { font-size:.88rem; color:var(--white-dim); margin:0; max-width:100%; }

/* CONNECTION TO RWA */
.connection-grid { display:grid; grid-template-columns:1fr 1fr 1fr; gap:20px; margin-top:52px; }
.conn-card { background:var(--navy-light); border:1px solid rgba(3,136,166,.14); border-radius:14px; padding:28px; text-align:center; }
.conn-card .conn-icon { margin:0 auto 16px; }
.conn-card h4 { font-family:"Lora",serif; font-size:1rem; margin-bottom:8px; }
.conn-card p { font-size:.85rem; color:var(--white-dim); margin:0; line-height:1.65; }
.conn-arrow { display:flex; align-items:center; justify-content:center; color:var(--blue); font-size:1.4rem; }

/* RESPONSIVE */
@media(max-width:1024px){
  .key-diagram { grid-template-columns:1fr; }
  .key-arrow { transform:rotate(90deg); }
  .connection-grid { grid-template-columns:1fr; }
  .spectrum-items { grid-template-columns:1fr 1fr; }
  .wallet-card { width:100%; }
}

@media(max-width:600px){
  .spectrum-items { grid-template-columns:1fr; }
  .wallet-card { padding:22px 20px; }
}