/* =============================================================================
   COMP — Reusable UI Components | مكونات واجهة المستخدم القابلة لإعادة الاستخدام
   =============================================================================
   Sections:
     • TOST  — Toast notification system (success/error/info)
     • NAVU  — Navigation user avatar & logout button
     • CART  — Floating cart button + cart panel (items, promo, checkout)
     • ADBN  — Advertisement banner (JIRA design credit)
     • REVE  — Scroll reveal animation
     • PART  — Particle background effects
   =============================================================================
   Related: core.js (Toast, AdBanner, Particles), shop.js (Cart)
            index.html (all component DOM elements)
   ============================================================================= */

/* =============================================================================
   TOST — Toast Notifications | إشعارات التوست
   Related: core.js (Toast.show), index.html (#toastContainer)
   ============================================================================= */
.toast-container{position:fixed;bottom:2rem;left:50%;transform:translateX(-50%);z-index:9999;display:flex;flex-direction:column;gap:.6rem;align-items:center;width:100%;max-width:480px;pointer-events:none}
.toast{background:var(--bg-secondary);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-color);border-radius:var(--radius-sm);padding:.8rem 1.4rem;display:flex;align-items:center;gap:.8rem;color:var(--text-primary);font-size:.85rem;min-width:260px;box-shadow:0 12px 40px rgba(0,0,0,0.30);animation:toast-in .3s ease both;pointer-events:all;width:100%;max-width:420px}
.toast.success{border-color:rgba(61,213,176,0.20)}
.toast.error{border-color:rgba(255,107,138,0.20)}
.toast.info{border-color:rgba(74,158,255,0.20)}
.toast i{font-size:1rem;flex-shrink:0}
.toast.success i{color:var(--accent-teal)}
.toast.error i{color:var(--accent-rose)}
.toast.info i{color:var(--accent-blue)}
@keyframes toast-in{from{opacity:0;transform:translateY(12px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}

/* =============================================================================
   NAVU — Navigation User | مستخدم شريط التنقل
   Related: auth.js (updateNav), index.html (.nav-actions)
   ============================================================================= */
.nav-user{display:flex;align-items:center;gap:.6rem;padding:.3rem .8rem .3rem .3rem;border-radius:var(--radius-full);background:var(--accent-gold-dim);border:1px solid rgba(245,200,66,0.10);cursor:pointer;transition:.2s}
.nav-user:hover{background:rgba(245,200,66,0.15)}
.nav-user-avatar{width:28px;height:28px;border-radius:50%;background:var(--gradient-primary);display:flex;align-items:center;justify-content:center;font-size:.7rem;font-weight:700;color:#0F172A}
.nav-user-name{font-size:.78rem;color:var(--accent-gold);font-weight:500;max-width:100px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.nav-logout{padding:.35rem .8rem;border-radius:var(--radius-full);background:rgba(255,107,138,0.06);border:1px solid rgba(255,107,138,0.08);color:var(--accent-rose);font-size:.78rem;cursor:pointer;font-family:'DM Sans',sans-serif;transition:.2s}
.nav-logout:hover{background:rgba(255,107,138,0.12)}

/* =============================================================================
   CART.BTN — Floating Cart Button | زر عربة التسوق العائم
   Related: shop.js (Cart.render), index.html (#cartBtn)
   ============================================================================= */
.cart-btn{position:fixed;right:1.8rem;bottom:2rem;z-index:9999;width:52px;height:52px;border-radius:50%;background:var(--gradient-primary);border:none;cursor:pointer;color:#0F172A;font-size:1.2rem;display:flex;align-items:center;justify-content:center;box-shadow:0 6px 24px rgba(245,200,66,0.15);transition:all .3s;display:none}
.cart-btn.show{display:flex}
.cart-btn:hover{transform:scale(1.06);box-shadow:0 10px 32px rgba(245,200,66,0.25)}
.cart-badge{position:absolute;top:-4px;right:-4px;width:20px;height:20px;border-radius:50%;background:var(--accent-rose);color:#fff;font-size:.62rem;font-weight:700;display:flex;align-items:center;justify-content:center}

/* =============================================================================
   CART.PNL — Cart Panel | لوحة عربة التسوق
   Related: shop.js (Cart.add/remove/render), index.html (#cartPanel)
   ============================================================================= */
.cart-panel{position:fixed;top:0;left:-380px;bottom:0;width:360px;z-index:4000;background:var(--bg-secondary);border-right:1px solid var(--border-color);display:flex;flex-direction:column;transition:left .4s cubic-bezier(0.23,1,0.32,1);box-shadow:20px 0 60px rgba(0,0,0,0.30)}
.cart-panel.open{left:0}
.cart-panel-header{padding:1.5rem;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between}
.cart-panel-title{font-family:'Playfair Display',serif;font-size:1.2rem;color:var(--text-primary);font-weight:700}
.cart-panel-close{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,0.04);border:1px solid var(--border-color);color:var(--text-secondary);cursor:pointer;font-size:.85rem;display:flex;align-items:center;justify-content:center}
.cart-items{flex:1;overflow-y:auto;padding:1.2rem}
.cart-item{display:flex;gap:1rem;padding:.9rem 0;border-bottom:1px solid var(--border-color);align-items:center}
.cart-item-icon{width:44px;height:44px;border-radius:10px;background:rgba(255,255,255,0.03);display:flex;align-items:center;justify-content:center;font-size:1.3rem;flex-shrink:0}
.cart-item-name{font-size:.85rem;color:var(--text-primary);flex:1}
.cart-item-price{font-size:.85rem;color:var(--accent-gold);font-weight:600}
.cart-item-remove{width:26px;height:26px;border-radius:50%;background:rgba(255,107,138,0.06);border:none;color:var(--accent-rose);cursor:pointer;font-size:.7rem;display:flex;align-items:center;justify-content:center}
.cart-footer{padding:1.5rem;border-top:1px solid var(--border-color)}
.cart-summary{display:flex;flex-direction:column;gap:6px;margin-bottom:1.2rem}
.cart-summary-row{display:flex;justify-content:space-between;font-size:.85rem;color:var(--text-secondary)}
.cart-summary-row.total{color:var(--text-primary);font-weight:700;font-size:1.1rem;padding-top:8px;border-top:1px solid var(--border-color)}
.cart-summary-row.savings{color:var(--accent-teal)}
.cart-promo{display:flex;gap:.5rem;margin-bottom:1rem;align-items:center;flex-wrap:wrap}
.cart-promo input{flex:1;padding:.5rem .8rem;border-radius:var(--radius-sm);background:rgba(255,255,255,0.03);border:1px solid var(--border-color);color:var(--text-primary);font-size:.85rem;font-family:'DM Sans',sans-serif;min-width:120px}
.cart-promo input:focus{border-color:var(--accent-gold);outline:none}
.cart-promo button{padding:.5rem 1.2rem;border-radius:var(--radius-sm);background:var(--gradient-primary);border:none;color:#0F172A;font-weight:700;font-size:.8rem;cursor:pointer;transition:all .2s;white-space:nowrap}
.cart-promo button:hover{transform:scale(1.04);box-shadow:0 4px 12px rgba(245,200,66,0.2)}
.cart-promo .promo-error{color:var(--accent-rose);font-size:.8rem;width:100%;margin-top:.2rem;display:none}
.cart-promo .promo-success{color:var(--accent-teal);font-size:.8rem;width:100%;margin-top:.2rem;display:none}
.cart-checkout{width:100%;padding:.85rem;background:var(--gradient-primary);border:none;border-radius:var(--radius-sm);color:#0F172A;font-weight:700;font-size:.9rem;cursor:pointer;font-family:'DM Sans',sans-serif;transition:.2s}
.cart-checkout:hover{box-shadow:0 8px 24px rgba(245,200,66,0.15)}
.cart-empty{text-align:center;padding:3rem 1rem;color:var(--text-muted)}
.cart-empty i{font-size:2.5rem;display:block;margin-bottom:1rem}

/* =============================================================================
   ADBN — Advertisement Banner | بانر الإعلانات
   Related: core.js (AdBanner.init), index.html (#adBanner)
   ============================================================================= */
.ad-banner{position:fixed;left:15px;top:85px;z-index:90;width:180px;height:180px;border-radius:50%;background:#fff;box-shadow:0 8px 30px rgba(0,0,0,0.20);display:flex;align-items:center;justify-content:center;transition:all .4s cubic-bezier(0.23,1,0.32,1);border:2px solid #1D4ED8;padding:.6rem;margin-left:-55px;transform:none}
.ad-banner:hover{margin-left:-10px;transform:scale(1.02)}
.ad-banner-content{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:#1E293B;gap:.2rem;width:100%}
.ad-logo{width:80px;height:auto;object-fit:contain;margin-bottom:.2rem}
.ad-text-main{margin:0;font-size:.6rem;font-weight:500;color:#64748B;letter-spacing:.05em}
.ad-text-brand{margin:0;font-size:.9rem;font-weight:900;color:#1D4ED8;line-height:1.1}
.ad-text-tagline{margin:0;font-size:.45rem;font-weight:600;color:#475569;letter-spacing:.1em}
.ad-wa-link{display:inline-flex;align-items:center;gap:.3rem;background:#25D366;color:#fff;padding:.15rem .6rem;border-radius:20px;font-size:.5rem;font-weight:700;text-decoration:none;margin-top:.1rem;transition:transform .2s,box-shadow .2s;box-shadow:0 2px 8px rgba(37,211,102,0.3)}
.ad-wa-link:hover{transform:scale(1.05);box-shadow:0 4px 12px rgba(37,211,102,0.4)}
.ad-banner-close{position:absolute;top:-8px;right:-8px;width:28px;height:28px;border-radius:50%;background:#ef4444;border:2px solid #fff;color:#fff;font-size:.8rem;display:flex;align-items:center;justify-content:center;cursor:pointer;box-shadow:0 4px 12px rgba(0,0,0,0.2);transition:transform .2s,background .2s;z-index:2}
.ad-banner-close:hover{transform:scale(1.15);background:#dc2626}
.ad-banner.hidden{opacity:0;pointer-events:none;transform:translateY(-50%) translateX(-100%) scale(.9)}

/* =============================================================================
   REVE — Scroll Reveal Animation | تأثير الظهور عند التمرير
   Related: core.js (Scroll.reveal), index.html (.reveal class)
   ============================================================================= */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .6s cubic-bezier(0.23,1,0.32,1),transform .6s cubic-bezier(0.23,1,0.32,1)}
.reveal.visible{opacity:1;transform:translateY(0)}

/* =============================================================================
   PART — Particle Effects | تأثيرات الجسيمات
   Related: core.js (Particles.init), index.html (#particles)
   ============================================================================= */
.particles{position:absolute;inset:0;pointer-events:none;z-index:2}
.particle{position:absolute;border-radius:50%;background:var(--accent-gold);animation:float-particle linear infinite;pointer-events:none}
@keyframes float-particle{0%{transform:translateY(0) translateX(0) scale(1);opacity:0}10%{opacity:.6}90%{opacity:.3}100%{transform:translateY(-100vh) translateX(40px) scale(.4);opacity:0}}