/* PharmaLens — Design System */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg-primary:#070b14;--bg-secondary:#0d1220;--bg-card:rgba(15,21,40,0.7);
  --glass:rgba(20,30,60,0.45);--glass-border:rgba(100,140,255,0.12);
  --accent:#00d4aa;--accent2:#00b4d8;--accent3:#7c3aed;
  --grad:linear-gradient(135deg,#00d4aa,#00b4d8);--grad2:linear-gradient(135deg,#7c3aed,#a78bfa);
  --text:#f1f5f9;--text2:#94a3b8;--text3:#64748b;
  --danger:#ef4444;--warn:#f59e0b;--success:#10b981;
  --radius:12px;--radius-lg:20px;--radius-sm:8px;
  --font:'Inter',system-ui,sans-serif;--mono:'JetBrains Mono',monospace;
  --shadow:0 8px 32px rgba(0,0,0,0.4);--glow:0 0 20px rgba(0,212,170,0.15);
}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg-primary);color:var(--text);min-height:100vh;line-height:1.6;overflow-x:hidden}
body::before{content:'';position:fixed;inset:0;background:radial-gradient(ellipse at 20% 50%,rgba(0,212,170,0.04),transparent 60%),radial-gradient(ellipse at 80% 20%,rgba(124,58,237,0.04),transparent 60%);pointer-events:none;z-index:0}
#app{position:relative;z-index:1}
a{color:var(--accent);text-decoration:none;transition:all .2s}
a:hover{color:var(--accent2)}

/* Header */
.header{position:sticky;top:0;z-index:100;background:rgba(7,11,20,0.8);backdrop-filter:blur(20px);border-bottom:1px solid var(--glass-border);padding:0 1.5rem}
.header-inner{max-width:1280px;margin:auto;display:flex;align-items:center;gap:1.5rem;height:64px}
.logo{display:flex;align-items:center;gap:.5rem;font-weight:800;font-size:1.3rem;color:var(--text);flex-shrink:0}
.logo-icon{font-size:1.5rem;filter:drop-shadow(0 0 8px rgba(0,212,170,.4))}
.logo-accent{background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.search-container{flex:1;max-width:520px;position:relative}
.search-box{display:flex;align-items:center;background:var(--glass);border:1px solid var(--glass-border);border-radius:var(--radius);padding:0 1rem;transition:all .3s}
.search-box:focus-within{border-color:var(--accent);box-shadow:var(--glow)}
.search-icon{width:18px;height:18px;color:var(--text3);flex-shrink:0}
#search-input{flex:1;background:none;border:none;color:var(--text);padding:.6rem .75rem;font-size:.9rem;font-family:var(--font);outline:none}
#search-input::placeholder{color:var(--text3)}
.search-shortcut{font-size:.7rem;color:var(--text3);background:rgba(255,255,255,.06);padding:2px 8px;border-radius:4px;font-family:var(--mono);white-space:nowrap}
.autocomplete-dropdown{display:none;position:absolute;top:calc(100% + 6px);left:0;right:0;background:var(--bg-secondary);border:1px solid var(--glass-border);border-radius:var(--radius);max-height:360px;overflow-y:auto;box-shadow:var(--shadow);z-index:200}
.autocomplete-dropdown.show{display:block}
.ac-item{padding:.75rem 1rem;cursor:pointer;display:flex;align-items:center;gap:.75rem;transition:background .15s;border-bottom:1px solid rgba(255,255,255,.03)}
.ac-item:hover{background:rgba(0,212,170,.08)}
.ac-item:last-child{border:none}
.ac-type{font-size:.65rem;padding:2px 6px;border-radius:4px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}
.ac-type.generic{background:rgba(0,212,170,.15);color:var(--accent)}
.ac-type.brand{background:rgba(124,58,237,.15);color:var(--accent3)}
.ac-type.category{background:rgba(245,158,11,.15);color:var(--warn)}
.ac-name{font-weight:500;font-size:.9rem}
.ac-sub{color:var(--text3);font-size:.75rem}
.nav-links{display:flex;gap:.25rem;flex-shrink:0}
.nav-link{padding:.45rem .9rem;border-radius:var(--radius-sm);font-size:.85rem;font-weight:500;color:var(--text2);transition:all .2s}
.nav-link:hover,.nav-link.active{color:var(--text);background:rgba(0,212,170,.1)}
.mobile-menu-btn{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.mobile-menu-btn span{display:block;width:22px;height:2px;background:var(--text2);border-radius:2px;transition:all .3s}

/* Hero */
.hero{padding:5rem 1.5rem 4rem;text-align:center;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-100px;left:50%;transform:translateX(-50%);width:700px;height:700px;background:radial-gradient(circle,rgba(0,212,170,.08),transparent 70%);pointer-events:none}
.hero-badge{display:inline-flex;align-items:center;gap:.5rem;padding:.4rem 1rem;background:var(--glass);border:1px solid var(--glass-border);border-radius:50px;font-size:.8rem;color:var(--accent);margin-bottom:1.5rem;animation:fadeInDown .6s}
.hero h1{font-size:clamp(2rem,5vw,3.5rem);font-weight:900;line-height:1.15;margin-bottom:1rem;animation:fadeInUp .6s}
.hero h1 .grad{background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{color:var(--text2);font-size:1.1rem;max-width:600px;margin:0 auto 2rem;animation:fadeInUp .6s .1s both}
.hero-search{max-width:560px;margin:0 auto 2.5rem;animation:fadeInUp .6s .2s both}
.hero-search .search-box{display:flex;align-items:center;padding:.25rem .25rem .25rem 1.25rem;border-radius:50px;background:var(--glass);border:1px solid var(--glass-border)}
.hero-search .search-box:focus-within{border-color:var(--accent);box-shadow:0 0 30px rgba(0,212,170,.15)}
.hero-search #hero-search-input{flex:1;background:none;border:none;color:var(--text);outline:none;font-size:1rem;padding:.75rem}
.hero-search #hero-search-input::placeholder{color:var(--text3)}
.hero-search-btn{background:var(--grad);color:#fff;border:none;padding:.7rem 1.5rem;border-radius:50px;font-weight:600;cursor:pointer;font-size:.9rem;transition:all .3s}
.hero-search-btn:hover{transform:scale(1.05);box-shadow:0 4px 20px rgba(0,212,170,.3)}
.hero-stats{display:flex;justify-content:center;gap:3rem;animation:fadeInUp .6s .3s both}
.stat{text-align:center}
.stat-num{font-size:2rem;font-weight:800;background:var(--grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-label{color:var(--text3);font-size:.8rem;font-weight:500}

/* Section */
.section{padding:3rem 1.5rem;max-width:1280px;margin:auto}
.section-title{font-size:1.5rem;font-weight:700;margin-bottom:.5rem;display:flex;align-items:center;gap:.5rem}
.section-sub{color:var(--text2);margin-bottom:2rem;font-size:.95rem}

/* Category Cards */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1rem}
.cat-card{background:var(--glass);border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:1.5rem;cursor:pointer;transition:all .3s;position:relative;overflow:hidden}
.cat-card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:var(--glow)}
.cat-card::after{content:'';position:absolute;inset:0;background:var(--grad);opacity:0;transition:opacity .3s}
.cat-card:hover::after{opacity:.05}
.cat-icon{font-size:2rem;margin-bottom:.75rem;display:block;position:relative;z-index:1}
.cat-name{font-weight:600;font-size:1rem;margin-bottom:.25rem;position:relative;z-index:1}
.cat-count{color:var(--text3);font-size:.8rem;position:relative;z-index:1}

/* Drug Cards */
.drug-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:1.25rem}
.drug-card{background:var(--glass);border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:1.5rem;cursor:pointer;transition:all .3s;animation:fadeInUp .4s both}
.drug-card:hover{transform:translateY(-3px);border-color:rgba(0,212,170,.3);box-shadow:var(--glow)}
.drug-card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:.75rem}
.drug-name{font-size:1.1rem;font-weight:700}
.drug-category-badge{font-size:.65rem;padding:3px 8px;border-radius:50px;font-weight:600;background:rgba(0,212,170,.12);color:var(--accent);white-space:nowrap}
.drug-desc{color:var(--text2);font-size:.85rem;margin-bottom:1rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.drug-brands-preview{display:flex;flex-wrap:wrap;gap:.4rem}
.brand-chip{font-size:.75rem;padding:3px 10px;border-radius:50px;background:rgba(124,58,237,.1);color:#a78bfa;border:1px solid rgba(124,58,237,.15)}
.brand-more{font-size:.75rem;color:var(--text3);padding:3px 8px}

/* Drug Detail */
.drug-detail{max-width:900px;margin:auto;padding:2rem 1.5rem;animation:fadeInUp .4s}
.drug-detail-header{margin-bottom:2rem}
.drug-detail-header h1{font-size:2rem;font-weight:800;margin-bottom:.5rem}
.drug-meta{display:flex;flex-wrap:wrap;gap:.75rem;margin-bottom:1rem}
.meta-pill{font-size:.8rem;padding:4px 12px;border-radius:50px;border:1px solid var(--glass-border);color:var(--text2)}
.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.25rem;margin-bottom:2rem}
.info-card{background:var(--glass);border:1px solid var(--glass-border);border-radius:var(--radius);padding:1.25rem}
.info-card h3{font-size:.85rem;color:var(--accent);font-weight:600;margin-bottom:.5rem;text-transform:uppercase;letter-spacing:.5px}
.info-card p{color:var(--text2);font-size:.9rem}
.brands-table{width:100%;border-collapse:separate;border-spacing:0;background:var(--glass);border:1px solid var(--glass-border);border-radius:var(--radius);overflow:hidden}
.brands-table th{text-align:left;padding:.75rem 1rem;background:rgba(0,212,170,.06);color:var(--accent);font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px}
.brands-table td{padding:.75rem 1rem;border-top:1px solid rgba(255,255,255,.04);font-size:.9rem;color:var(--text2)}
.brands-table tr:hover td{background:rgba(0,212,170,.03)}
.back-btn{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;border-radius:var(--radius-sm);background:var(--glass);border:1px solid var(--glass-border);color:var(--text2);font-size:.85rem;cursor:pointer;transition:all .2s;margin-bottom:1.5rem;font-family:var(--font)}
.back-btn:hover{border-color:var(--accent);color:var(--text)}

/* Chat */
.chat-container{max-width:800px;margin:auto;padding:1rem 1.5rem;height:calc(100vh - 180px);display:flex;flex-direction:column}
.chat-messages{flex:1;overflow-y:auto;padding:1rem 0;display:flex;flex-direction:column;gap:1rem}
.chat-msg{max-width:85%;padding:1rem 1.25rem;border-radius:var(--radius-lg);animation:fadeInUp .3s;font-size:.9rem;line-height:1.7}
.chat-msg.bot{background:var(--glass);border:1px solid var(--glass-border);align-self:flex-start;border-bottom-left-radius:4px}
.chat-msg.user{background:rgba(0,212,170,.12);border:1px solid rgba(0,212,170,.2);align-self:flex-end;border-bottom-right-radius:4px}
.chat-msg strong{color:var(--accent)}
.chat-msg .drug-inline{background:rgba(124,58,237,.08);border:1px solid rgba(124,58,237,.15);border-radius:var(--radius-sm);padding:.75rem;margin:.5rem 0;cursor:pointer}
.chat-msg .drug-inline:hover{border-color:var(--accent3)}
.chat-suggestions{display:flex;flex-wrap:wrap;gap:.5rem;padding:.75rem 0}
.suggest-chip{padding:.4rem .85rem;border-radius:50px;border:1px solid var(--glass-border);background:var(--glass);color:var(--text2);font-size:.8rem;cursor:pointer;transition:all .2s}
.suggest-chip:hover{border-color:var(--accent);color:var(--accent);background:rgba(0,212,170,.08)}
.chat-input-area{display:flex;gap:.75rem;padding:1rem 0}
.chat-input-area input{flex:1;background:var(--glass);border:1px solid var(--glass-border);border-radius:50px;padding:.75rem 1.25rem;color:var(--text);font-size:.9rem;font-family:var(--font);outline:none;transition:border-color .2s}
.chat-input-area input:focus{border-color:var(--accent)}
.chat-send-btn{background:var(--grad);color:#fff;border:none;width:44px;height:44px;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:transform .2s}
.chat-send-btn:hover{transform:scale(1.1)}
.typing-indicator{display:flex;gap:4px;padding:1rem;align-self:flex-start}
.typing-indicator span{width:8px;height:8px;border-radius:50%;background:var(--text3);animation:typing 1.4s infinite}
.typing-indicator span:nth-child(2){animation-delay:.2s}
.typing-indicator span:nth-child(3){animation-delay:.4s}

/* Search Results */
.results-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;flex-wrap:wrap;gap:1rem}
.results-count{color:var(--text2);font-size:.9rem}
.results-type{padding:3px 10px;border-radius:50px;font-size:.75rem;font-weight:600}
.results-type.direct{background:rgba(16,185,129,.12);color:var(--success)}
.results-type.fuzzy{background:rgba(245,158,11,.12);color:var(--warn)}
.results-type.category{background:rgba(0,180,216,.12);color:var(--accent2)}
.no-results{text-align:center;padding:4rem 1rem;color:var(--text3)}
.no-results h2{font-size:1.3rem;margin-bottom:.5rem;color:var(--text2)}

/* Disclaimer Banner */
.disclaimer-banner{background:rgba(245,158,11,.08);border:1px solid rgba(245,158,11,.2);border-radius:var(--radius);padding:1rem 1.25rem;display:flex;align-items:flex-start;gap:.75rem;margin:1.5rem 0}
.disclaimer-banner span:first-child{font-size:1.2rem;flex-shrink:0}
.disclaimer-banner p{color:var(--warn);font-size:.85rem}

/* Footer */
.footer{margin-top:4rem;border-top:1px solid var(--glass-border);padding:2rem 1.5rem;background:rgba(7,11,20,.5)}
.footer-inner{max-width:1280px;margin:auto;text-align:center}
.footer-disclaimer{background:rgba(245,158,11,.06);border:1px solid rgba(245,158,11,.15);border-radius:var(--radius);padding:1.25rem;display:flex;align-items:flex-start;gap:.75rem;text-align:left;margin-bottom:1.5rem}
.disclaimer-icon{font-size:1.3rem;flex-shrink:0}
.footer-disclaimer p{color:var(--warn);font-size:.85rem;line-height:1.6}
.footer-bottom p{color:var(--text3);font-size:.85rem;margin-bottom:.25rem}
.footer-note{font-size:.75rem!important;color:var(--text3)!important}

/* Loading */
.skeleton{background:linear-gradient(90deg,var(--glass) 25%,rgba(255,255,255,.06) 50%,var(--glass) 75%);background-size:200%;animation:shimmer 1.5s infinite;border-radius:var(--radius);min-height:120px}
.loader{display:flex;justify-content:center;padding:3rem}
.spinner{width:36px;height:36px;border:3px solid var(--glass-border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}

/* Animations */
@keyframes fadeInUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeInDown{from{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}
@keyframes shimmer{to{background-position:-200% 0}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes typing{0%,60%,100%{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-6px)}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}

/* Scrollbar */
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--glass-border);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--accent)}

/* Responsive */
@media(max-width:768px){
  .header-inner{gap:.75rem}
  .nav-links{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;background:rgba(7,11,20,.95);backdrop-filter:blur(20px);padding:1rem;border-bottom:1px solid var(--glass-border)}
  .nav-links.open{display:flex}
  .mobile-menu-btn{display:flex}
  .search-shortcut{display:none}
  .hero{padding:3rem 1rem 2.5rem}
  .hero-stats{gap:1.5rem}
  .stat-num{font-size:1.5rem}
  .cat-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
  .drug-grid{grid-template-columns:1fr}
  .chat-msg{max-width:92%}
  .info-grid{grid-template-columns:1fr}
  .brands-table{font-size:.8rem}
  .brands-table th,.brands-table td{padding:.5rem .6rem}
}