/* =============================================
   FitsMatch AI - Custom Design System
   Dark-first, Glassmorphism, Antigravity UX
   ============================================= */

:root {
  --accent: #7c3aed;
  --accent-2: #3b82f6;
  --accent-pink: #ec4899;
  --accent-glow: rgba(124,58,237,0.28);
  --bg-primary: #08080f;
  --bg-secondary: #0f0f1a;
  --bg-card: rgba(255,255,255,0.038);
  --bg-card-hover: rgba(255,255,255,0.065);
  --border: rgba(255,255,255,0.07);
  --border-accent: rgba(124,58,237,0.35);
  --text-1: #f1f5f9;
  --text-2: #94a3b8;
  --text-3: #64748b;
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  --shadow-card: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 40px var(--accent-glow);
}

[data-theme="light"] {
  --accent: #6d28d9;
  --accent-2: #2563eb;
  --accent-glow: rgba(109,40,217,0.15);
  --bg-primary: #f9f8f5;
  --bg-secondary: #f1ede8;
  --bg-card: rgba(255,255,255,0.75);
  --bg-card-hover: rgba(255,255,255,0.92);
  --border: rgba(0,0,0,0.08);
  --text-1: #1e293b;
  --text-2: #475569;
  --text-3: #94a3b8;
  --shadow-card: 0 4px 24px rgba(0,0,0,0.08);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg-primary);color:var(--text-1);font-family:'Plus Jakarta Sans','Outfit',sans-serif;overflow-x:hidden;transition:background .4s,color .3s;min-height:100vh}
::-webkit-scrollbar{width:5px}
::-webkit-scrollbar-track{background:var(--bg-secondary)}
::-webkit-scrollbar-thumb{background:var(--accent);border-radius:10px}
::selection{background:var(--accent);color:#fff}

.glass-card{background:var(--bg-card);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border:1px solid var(--border);box-shadow:var(--shadow-card);transition:background .3s,border-color .3s,box-shadow .3s,transform .3s}
.glass-card:hover{background:var(--bg-card-hover);box-shadow:var(--shadow-card),var(--shadow-glow)}

.gradient-text{background:linear-gradient(135deg,var(--accent),var(--accent-2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.gradient-text-pink{background:linear-gradient(135deg,var(--accent),var(--accent-pink));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

.btn-accent{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;border:none;border-radius:12px;padding:12px 28px;font-weight:700;cursor:pointer;transition:all .3s;position:relative;overflow:hidden;box-shadow:0 4px 16px var(--accent-glow);font-family:inherit}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 8px 28px var(--accent-glow)}
.btn-accent:active{transform:scale(.98)}
.btn-ghost{background:var(--bg-card);color:var(--text-1);border:1px solid var(--border);border-radius:12px;padding:12px 28px;font-weight:600;cursor:pointer;transition:all .3s;backdrop-filter:blur(10px);font-family:inherit}
.btn-ghost:hover{background:var(--bg-card-hover);border-color:var(--accent);transform:translateY(-1px)}
.btn-ghost:active{transform:scale(.98)}

.form-select,.form-input{width:100%;background:var(--bg-secondary);border:1px solid var(--border);border-radius:12px;padding:12px 16px;color:var(--text-1);font-size:.875rem;font-family:inherit;transition:border-color .3s,box-shadow .3s;appearance:none;-webkit-appearance:none}
.form-select:focus,.form-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}
.form-select option{background:var(--bg-secondary);color:var(--text-1)}

.floating-wrapper{position:fixed;inset:0;pointer-events:none;z-index:0;overflow:hidden}
.float-item{position:absolute;font-size:clamp(18px,3vw,38px);opacity:.1;animation:antigravity-float linear infinite;user-select:none;filter:blur(.5px)}
[data-theme="light"] .float-item{opacity:.05}
@keyframes antigravity-float{
  0%{transform:translateY(105vh) rotate(0deg) scale(.8);opacity:0}
  5%{opacity:.12}
  95%{opacity:.12}
  100%{transform:translateY(-15vh) rotate(720deg) scale(1.1);opacity:0}
}

.bg-blob{position:fixed;border-radius:50%;filter:blur(100px);pointer-events:none;z-index:0;opacity:.18;transition:opacity .5s}
[data-theme="light"] .bg-blob{opacity:.07}
.bg-blob-1{width:500px;height:500px;background:var(--accent);top:-200px;left:-200px;animation:blob-pulse 8s ease-in-out infinite}
.bg-blob-2{width:400px;height:400px;background:var(--accent-2);bottom:-150px;right:-150px;animation:blob-pulse 10s ease-in-out infinite reverse}
@keyframes blob-pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.15)}}

.nav-link{color:var(--text-2);text-decoration:none;font-size:.875rem;font-weight:600;padding:6px 4px;position:relative;transition:color .3s;cursor:pointer}
.nav-link::after{content:'';position:absolute;bottom:-2px;left:0;right:0;height:2px;background:var(--accent);border-radius:2px;transform:scaleX(0);transition:transform .3s}
.nav-link:hover,.nav-link.active{color:var(--text-1)}
.nav-link.active::after,.nav-link:hover::after{transform:scaleX(1)}

section{transition:opacity .35s,transform .35s}
section.hidden{display:none!important}
.animate-enter{animation:fade-in-up .5s ease forwards}
@keyframes fade-in-up{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}

.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 18px;border-radius:100px;background:rgba(124,58,237,.1);border:1px solid rgba(124,58,237,.25);font-size:.75rem;font-weight:600;color:#a78bfa;animation:badge-float 3s ease-in-out infinite}
@keyframes badge-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}

.rec-card{position:relative;overflow:hidden;border-radius:20px;transition:all .4s cubic-bezier(.34,1.56,.64,1)}
.rec-card:hover{transform:translateY(-6px) scale(1.01)}

.circular-score{position:relative;display:inline-flex;align-items:center;justify-content:center}
.circular-score svg{transform:rotate(-90deg)}
.score-ring{fill:none;stroke:var(--border);stroke-width:6}
.score-fill{fill:none;stroke-width:6;stroke:var(--accent);stroke-linecap:round;transition:stroke-dashoffset 1.2s cubic-bezier(.34,1.56,.64,1);filter:drop-shadow(0 0 6px var(--accent-glow))}
.score-text{position:absolute;font-weight:900;font-family:'Outfit',sans-serif;color:var(--text-1)}

#camera-container{position:relative;border-radius:20px;overflow:hidden;aspect-ratio:4/3;background:var(--bg-secondary);border:1px solid var(--border)}
#camera-video,#image-preview-el{width:100%;height:100%;object-fit:cover}

.scan-crosshair{width:140px;height:140px;border:2px solid var(--accent);border-radius:16px;animation:crosshair-pulse 2s ease-in-out infinite;box-shadow:0 0 20px var(--accent-glow),inset 0 0 20px rgba(124,58,237,.1)}
@keyframes crosshair-pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.6;transform:scale(1.05)}}

.confidence-bar-track{height:6px;background:var(--border);border-radius:10px;overflow:hidden}
.confidence-bar-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent-2));border-radius:10px;transition:width .8s cubic-bezier(.34,1.56,.64,1);box-shadow:0 0 8px var(--accent-glow)}

#chatbot-messages{height:400px;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:12px;scroll-behavior:smooth}
#chatbot-messages::-webkit-scrollbar{width:4px}
#chatbot-messages::-webkit-scrollbar-thumb{background:var(--accent);border-radius:10px}

.chat-bubble{max-width:80%;padding:12px 16px;border-radius:18px;font-size:.875rem;line-height:1.6;animation:bubble-in .3s cubic-bezier(.34,1.56,.64,1);position:relative}
@keyframes bubble-in{from{opacity:0;transform:scale(.85) translateY(10px)}to{opacity:1;transform:scale(1) translateY(0)}}
.chat-bubble.user{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;align-self:flex-end;border-bottom-right-radius:6px;box-shadow:0 4px 16px var(--accent-glow)}
.chat-bubble.ai{background:var(--bg-card);border:1px solid var(--border);color:var(--text-1);align-self:flex-start;border-bottom-left-radius:6px;backdrop-filter:blur(10px)}

.typing-indicator{display:flex;align-items:center;gap:5px;padding:14px 18px;background:var(--bg-card);border:1px solid var(--border);border-radius:18px;border-bottom-left-radius:6px;align-self:flex-start;animation:bubble-in .3s ease}
.typing-dot{width:7px;height:7px;background:var(--text-3);border-radius:50%;animation:typing-bounce 1.4s ease-in-out infinite}
.typing-dot:nth-child(2){animation-delay:.2s}
.typing-dot:nth-child(3){animation-delay:.4s}
@keyframes typing-bounce{0%,100%{transform:translateY(0);opacity:.4}50%{transform:translateY(-6px);opacity:1}}

#toast-container{position:fixed;bottom:24px;right:24px;z-index:999;display:flex;flex-direction:column;gap:10px;max-width:360px}
.toast{display:flex;align-items:center;gap:12px;padding:14px 18px;border-radius:14px;background:var(--bg-secondary);border:1px solid var(--border);backdrop-filter:blur(20px);box-shadow:0 8px 32px rgba(0,0,0,.3);font-size:.8rem;font-weight:600;color:var(--text-1);animation:toast-in .4s cubic-bezier(.34,1.56,.64,1);transition:opacity .3s,transform .3s}
.toast.hiding{opacity:0;transform:translateX(40px)}
@keyframes toast-in{from{opacity:0;transform:translateX(50px) scale(.9)}to{opacity:1;transform:translateX(0) scale(1)}}
.toast.success{border-left:3px solid var(--success)}
.toast.error{border-left:3px solid var(--error)}
.toast.warning{border-left:3px solid var(--warning)}
.toast.info{border-left:3px solid var(--accent)}

.shimmer{background:linear-gradient(90deg,var(--bg-card) 25%,var(--bg-card-hover) 50%,var(--bg-card) 75%);background-size:400% 100%;animation:shimmer 1.5s ease-in-out infinite}
@keyframes shimmer{0%{background-position:100% 0}100%{background-position:-100% 0}}

.status-dot{width:8px;height:8px;border-radius:50%;display:inline-block;animation:dot-pulse 2s ease-in-out infinite}
@keyframes dot-pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.8)}}

.hover-float{transition:transform .4s cubic-bezier(.34,1.56,.64,1),box-shadow .4s}
.hover-float:hover{transform:translateY(-5px)}

.quick-prompt{padding:7px 14px;border-radius:100px;border:1px solid var(--border);background:var(--bg-card);color:var(--text-2);font-size:.75rem;font-weight:600;cursor:pointer;transition:all .3s;white-space:nowrap;font-family:inherit}
.quick-prompt:hover{border-color:var(--accent);color:var(--text-1);background:rgba(124,58,237,.1);transform:translateY(-1px)}

.logo-icon{animation:logo-float 4s ease-in-out infinite}
@keyframes logo-float{0%,100%{transform:translateY(0) rotate(0deg)}50%{transform:translateY(-3px) rotate(3deg)}}

.analysis-item{display:flex;align-items:flex-start;gap:10px;padding:10px 14px;border-radius:10px;font-size:.83rem;transition:background .2s}
.analysis-item:hover{background:var(--bg-card-hover)}
.analysis-item.good{border-left:3px solid var(--success)}
.analysis-item.bad{border-left:3px solid var(--warning)}

@media(max-width:640px){#chatbot-messages{height:300px}.chat-bubble{max-width:92%}.float-item{font-size:clamp(14px,4vw,24px)}}