/* ============================================================
   OHSUN — SHARED COMPONENTS
   Brand · Nav · Two-Suns theme toggle · Footer · Cart · Toast
   ============================================================ */

/* ---------- logo / wordmark ---------- */
.brand{display:inline-flex;align-items:center;gap:.4em;line-height:1}
.brand__mark{height:1.5em;width:auto;flex:none}
.brand__mark .oh-fill{fill:var(--blue)}
.brand__mark .oh-ring{fill:none;stroke:var(--blue)}
.brand__word{
  font-family:var(--f-display);font-weight:800;letter-spacing:-.01em;
  font-size:1.32em;color:var(--tx);
}
/* theme-aware wordmark: dark (earth) shows the white mark, light (sky) the blue mark */
.brand__logo{display:block;width:auto;height:1.5em}
[data-theme="earth"] .brand__logo--light{display:none}
[data-theme="sky"]   .brand__logo--dark{display:none}

/* ============================================================
   NAV
   ============================================================ */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:60;
  display:flex;align-items:center;justify-content:space-between;
  padding:16px var(--gut);
  background:linear-gradient(to bottom,color-mix(in srgb,var(--bg) 72%,transparent),transparent);
  transition:background .4s var(--ease),padding .4s var(--ease),border-color .4s;
  border-bottom:1px solid transparent;
}
.nav.is-stuck{
  background:color-mix(in srgb,var(--bg) var(--nav-scrim),transparent);
  backdrop-filter:blur(18px) saturate(1.4);
  -webkit-backdrop-filter:blur(18px) saturate(1.4);
  padding:11px var(--gut);border-bottom:1px solid var(--line);
}
.nav__logo{font-size:1.05rem;z-index:2}
.nav__logo .brand__logo{height:2em}
.nav__links{display:flex;align-items:center;gap:32px}
.nav__links a{
  font-size:.82rem;letter-spacing:.02em;color:var(--tx-mute);
  position:relative;padding:4px 0;transition:color .25s;
}
.nav__links a:hover,.nav__links a.active{color:var(--tx)}
.nav__links a::after{
  content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;
  background:var(--blue);transition:width .3s var(--ease);
}
.nav__links a:hover::after,.nav__links a.active::after{width:100%}
.nav__right{display:flex;align-items:center;gap:14px}

/* ---------- two-suns theme toggle ---------- */
.suns{
  display:flex;align-items:center;position:relative;
  border:1px solid var(--line);border-radius:100px;padding:3px;background:var(--panel);
}
.suns__pill{
  position:absolute;top:3px;left:3px;height:calc(100% - 6px);width:0;
  border-radius:100px;background:var(--blue);z-index:0;
  transition:transform .45s var(--ease),width .45s var(--ease);
}
.suns button{
  position:relative;z-index:1;display:flex;align-items:center;gap:6px;
  padding:7px 13px;border-radius:100px;
  font-family:var(--f-mono);font-size:.62rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--tx-mute);transition:color .35s;
}
.suns button svg{width:13px;height:13px;flex:none}
.suns button[aria-pressed="true"]{color:var(--on-blue)}

/* ---------- cart button ---------- */
.cart-btn{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--f-mono);font-size:.72rem;letter-spacing:.12em;
  padding:9px 15px;border:1px solid var(--line-2);border-radius:100px;
  color:var(--tx);transition:.28s var(--ease);
}
.cart-btn:hover{border-color:var(--blue);box-shadow:var(--glow);color:var(--blue-600)}
.cart-btn svg{width:15px;height:15px}
.cart-btn .count{
  min-width:18px;height:18px;padding:0 5px;border-radius:9px;
  background:var(--blue);color:var(--on-blue);font-weight:700;font-size:.68rem;
  display:grid;place-items:center;line-height:1;
}

/* ---------- burger ---------- */
.nav__burger{display:none;width:26px;height:16px;position:relative}
.nav__burger span{position:absolute;left:0;height:2px;width:100%;background:var(--tx);border-radius:2px;transition:.3s}
.nav__burger span:nth-child(1){top:0}
.nav__burger span:nth-child(2){top:7px}
.nav__burger span:nth-child(3){top:14px}

/* ============================================================
   FOOTER  (e-commerce-ready column structure)
   ============================================================ */
.footer{background:var(--bg);border-top:1px solid var(--line);padding:80px 0 34px}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px}
.footer__brand .brand__logo{height:1.8em}
.footer__brand p{color:var(--tx-mute);font-size:.92rem;margin-top:20px;max-width:280px}
.footer__col h5{font-family:var(--f-mono);font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--tx-dim);margin-bottom:18px}
.footer__col a{display:block;color:var(--tx-mute);font-size:.92rem;padding:6px 0;transition:color .25s}
.footer__col a:hover{color:var(--blue)}
.footer__soon{font-family:var(--f-mono);font-size:.56rem;letter-spacing:.1em;color:var(--on-blue);background:var(--blue);padding:2px 6px;border-radius:4px;margin-left:8px;vertical-align:middle}
.footer__bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;margin-top:64px;padding-top:26px;border-top:1px solid var(--line)}
.footer__bottom p{font-family:var(--f-mono);font-size:.72rem;letter-spacing:.06em;color:var(--tx-dim)}
.footer__social{display:flex;gap:14px}
.footer__social a{width:38px;height:38px;border:1px solid var(--line);border-radius:50%;display:grid;place-items:center;color:var(--tx-mute);transition:.3s var(--ease)}
.footer__social a:hover{border-color:var(--blue);color:var(--blue);box-shadow:var(--glow-soft)}
.footer__social svg{width:16px;height:16px}

/* ============================================================
   CART DRAWER
   ============================================================ */
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(4px);z-index:80;opacity:0;visibility:hidden;transition:.35s var(--ease)}
.overlay.open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(420px,90vw);z-index:90;
  background:var(--panel);border-left:1px solid var(--line-2);
  transform:translateX(100%);transition:transform .4s var(--ease);
  display:flex;flex-direction:column;
}
.drawer.open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;padding:24px 26px;border-bottom:1px solid var(--line)}
.drawer__head h3{font-family:var(--f-display);font-weight:600;font-size:1.15rem;display:flex;align-items:center;gap:10px}
.drawer__head .count{background:var(--blue);color:var(--on-blue);font-family:var(--f-mono);font-size:.72rem;padding:1px 8px;border-radius:9px}
.drawer__close{width:36px;height:36px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;color:var(--tx-mute);transition:.25s}
.drawer__close:hover{color:var(--tx);border-color:var(--line-2)}
.drawer__body{flex:1;overflow-y:auto;padding:10px 26px}
.drawer__empty{text-align:center;color:var(--tx-dim);padding:70px 20px}
.drawer__empty svg{width:44px;height:44px;color:var(--tx-dim);margin:0 auto 18px;opacity:.5}
.drawer__empty p{font-size:.92rem}
.citem{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--line)}
.citem__thumb{width:58px;height:58px;border-radius:12px;background:var(--panel-2);display:grid;place-items:center;flex:none;border:1px solid var(--line)}
.citem__thumb svg{width:34px;height:34px;color:var(--blue)}
.citem__info{flex:1;min-width:0}
.citem__info h4{font-family:var(--f-display);font-weight:600;font-size:.92rem;line-height:1.2}
.citem__info .pn{font-family:var(--f-mono);font-size:.66rem;color:var(--tx-dim);letter-spacing:.06em;margin-top:3px}
.citem__row{display:flex;align-items:center;justify-content:space-between;margin-top:10px}
.qty{display:flex;align-items:center;gap:2px;border:1px solid var(--line-2);border-radius:8px;overflow:hidden}
.qty button{width:26px;height:26px;display:grid;place-items:center;color:var(--tx-mute);font-size:1rem;transition:.2s}
.qty button:hover{color:var(--blue);background:var(--panel-2)}
.qty span{min-width:26px;text-align:center;font-family:var(--f-mono);font-size:.8rem}
.citem__price{font-family:var(--f-display);font-weight:600;font-size:.95rem}
.citem__rm{font-family:var(--f-mono);font-size:.62rem;letter-spacing:.08em;color:var(--tx-dim);text-transform:uppercase;transition:color .2s}
.citem__rm:hover{color:#ff6b6b}
.drawer__foot{padding:22px 26px;border-top:1px solid var(--line);background:var(--bg-1)}
.drawer__sum{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:16px}
.drawer__sum .lbl{color:var(--tx-mute);font-size:.9rem}
.drawer__sum .val{font-family:var(--f-display);font-weight:700;font-size:1.5rem}
.drawer__checkout{width:100%;justify-content:center;position:relative}
.drawer__checkout small{position:absolute;right:20px;font-family:var(--f-mono);font-size:.58rem;letter-spacing:.1em;opacity:.7}
.drawer__ship{font-family:var(--f-mono);font-size:.66rem;letter-spacing:.06em;color:var(--tx-dim);text-align:center;margin-top:14px}

/* ---------- toast ---------- */
.toast{
  position:fixed;bottom:26px;left:50%;transform:translate(-50%,20px);z-index:100;
  background:var(--panel-3);border:1px solid var(--blue);border-radius:100px;
  padding:13px 24px;font-size:.86rem;color:var(--tx);box-shadow:var(--glow);
  display:flex;align-items:center;gap:10px;opacity:0;visibility:hidden;transition:.35s var(--ease);
}
.toast.show{opacity:1;visibility:visible;transform:translate(-50%,0)}
.toast svg{width:16px;height:16px;color:var(--blue)}

/* ============================================================
   COMPONENT RESPONSIVE  (nav collapse + toggle shrink)
   ============================================================ */
@media(max-width:860px){
  .nav__links{
    position:fixed;inset:0 0 0 auto;width:min(320px,84vw);flex-direction:column;
    align-items:flex-start;justify-content:center;gap:26px;padding:0 34px;
    background:var(--panel);border-left:1px solid var(--line);
    transform:translateX(100%);transition:transform .4s var(--ease);z-index:1;
  }
  .nav__links.open{transform:translateX(0)}
  .nav__links a{font-size:1.15rem}
  .nav__burger{display:block;z-index:2}
  .nav__burger.open span:nth-child(1){top:7px;transform:rotate(45deg)}
  .nav__burger.open span:nth-child(2){opacity:0}
  .nav__burger.open span:nth-child(3){top:7px;transform:rotate(-45deg)}
  .cart-btn span.txt{display:none}
}
@media(max-width:560px){
  .suns button span{display:none}
  .suns button{padding:8px 10px}
  .nav__right{gap:10px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer__brand{grid-column:1/-1}
}
@media(max-width:420px){
  .footer__grid{grid-template-columns:1fr}
}