*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent}

:root{
  --bg:#f8fafc;--bg-2:#fff;--bg-3:#f1f5f9;--bg-4:#e2e8f0;
  --border:#e2e8f0;--text:#0f172a;--text-2:#475569;--text-3:#94a3b8;
  --accent:#06b6d4;--accent-2:#0891b2;--accent-soft:#cffafe;
  --accent-glow:rgba(6,182,212,.3);
  --danger:#dc2626;--success:#059669;--amber:#f59e0b;
  --glass:rgba(255,255,255,.78);--glass-border:rgba(0,0,0,.06);
  --shadow-sm:0 2px 8px rgba(0,0,0,.05);
  --shadow-md:0 8px 24px rgba(0,0,0,.08);
  --shadow-lg:0 20px 60px rgba(0,0,0,.14);
  --shadow-xl:0 40px 100px rgba(0,0,0,.2);
  --radius:12px;
}

html[data-theme="dark"]{
  --bg:#0a0a0c;--bg-2:#111114;--bg-3:#1a1a1f;--bg-4:#26262b;
  --border:#26262b;--text:#f4f4f5;--text-2:#a1a1aa;--text-3:#71717a;
  --accent:#22d3ee;--accent-2:#06b6d4;--accent-soft:rgba(34,211,238,.12);
  --accent-glow:rgba(34,211,238,.4);
  --glass:rgba(17,17,20,.72);--glass-border:rgba(255,255,255,.08);
}

html,body{height:100%;overflow-x:hidden}
body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Inter","Segoe UI",system-ui,sans-serif;line-height:1.55;-webkit-font-smoothing:antialiased;transition:background .3s,color .3s}
button,input,textarea,select{font-family:inherit;color:inherit}
button{cursor:pointer;border:0;background:transparent}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}

@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes scaleIn{from{opacity:0;transform:scale(.94)}to{opacity:1;transform:scale(1)}}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
@keyframes gradientMove{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}

/* HEADER */
.site-header{position:sticky;top:0;z-index:1000;background:transparent;border-bottom:1px solid var(--glass-border);isolation:isolate}
.site-header::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background:var(--glass);backdrop-filter:blur(24px) saturate(180%);-webkit-backdrop-filter:blur(24px) saturate(180%)}
.site-header-inner{max-width:1400px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:12px 24px;gap:14px;position:relative;z-index:1}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:-.4px;flex-shrink:0}
.brand-mark{width:34px;height:34px;border-radius:10px;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center}
.brand-mark svg{width:100%;height:100%}
.brand .wordmark span{background:linear-gradient(120deg,#06b6d4,#10b981,#84cc16);-webkit-background-clip:text;background-clip:text;color:transparent}
.nav{display:flex;gap:4px;align-items:center}
.nav>a{padding:8px 14px;font-size:13px;font-weight:600;color:var(--text-2);border-radius:8px;transition:all .18s}
.nav>a:hover{color:var(--text);background:var(--bg-3)}
.nav>a.cta{background:linear-gradient(120deg,#06b6d4,#10b981);color:#fff;box-shadow:0 4px 14px var(--accent-glow)}
.theme-btn{width:36px;height:36px;border-radius:50%;background:var(--bg-3);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:15px;transition:transform .25s,background .2s}
.theme-btn:hover{transform:rotate(20deg) scale(1.08);background:var(--bg-4)}
.mobile-nav-toggle{display:none;width:40px;height:40px;border-radius:10px;background:var(--bg-3);border:1px solid var(--border);color:var(--text);align-items:center;justify-content:center;font-size:18px;flex-shrink:0}
.nav-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.4);backdrop-filter:blur(2px);z-index:998;opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s}
.nav-backdrop.show{opacity:1;visibility:visible}

/* USER CHIP */
.user-chip{display:inline-flex;align-items:center;gap:8px;padding:4px 12px 4px 4px;border-radius:100px;background:var(--bg-3);border:1px solid var(--border);font-size:13px;font-weight:600;transition:all .18s;cursor:pointer;font-family:inherit;color:var(--text)}
.user-chip:hover{background:var(--bg-4);border-color:var(--accent)}
.user-chip .avatar{width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,#06b6d4,#10b981);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:12px;flex-shrink:0}
.user-chip .u-caret{font-size:10px;opacity:.6;transition:transform .18s;display:inline-block}
.user-chip[aria-expanded="true"] .u-caret{transform:rotate(180deg)}
.user-menu{position:absolute;top:calc(100% + 8px);right:0;min-width:260px;max-width:calc(100vw - 20px);background:var(--bg-2);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow-xl);opacity:0;visibility:hidden;transform:translateY(-8px) scale(.98);transform-origin:top right;transition:opacity .18s ease,transform .18s ease,visibility 0s linear .18s;z-index:2000;overflow:hidden;pointer-events:none}
.user-menu.open{opacity:1;visibility:visible;transform:translateY(0) scale(1);transition:opacity .18s ease,transform .18s ease,visibility 0s linear 0s;pointer-events:auto}
.um-head{display:flex;gap:12px;align-items:center;padding:16px;border-bottom:1px solid var(--border);background:var(--bg-3)}
.um-avatar{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,#06b6d4,#10b981);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:16px;flex-shrink:0}
.um-name{font-size:14px;font-weight:700;line-height:1.2}
.um-email{font-size:11px;color:var(--text-3);margin-top:2px;word-break:break-all}
.um-body{padding:8px}
.um-body a{display:flex;align-items:center;gap:10px;padding:10px 12px;font-size:13px;font-weight:600;color:var(--text-2);border-radius:8px;transition:all .15s}
.um-body a:hover{background:var(--bg-3);color:var(--text)}
.um-body a.um-danger{color:var(--danger)}
.um-sep{height:1px;background:var(--border);margin:6px 4px}

/* FOOTER */
.site-footer{border-top:1px solid var(--border);background:var(--bg-2);margin-top:80px;padding:64px 20px 30px}
.site-footer-inner{max-width:1100px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}
.site-footer h4{font-size:11px;text-transform:uppercase;letter-spacing:1.2px;color:var(--text-3);margin-bottom:14px;font-weight:700}
.site-footer a{display:block;font-size:13px;color:var(--text-2);padding:5px 0;transition:color .18s,transform .18s}
.site-footer a:hover{color:var(--accent);transform:translateX(3px)}
.site-footer .brand-col p{color:var(--text-3);font-size:13px;line-height:1.6;margin-top:12px;max-width:300px}
.footer-copy{max-width:1100px;margin:40px auto 0;padding-top:24px;border-top:1px solid var(--border);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12px;color:var(--text-3)}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--radius);font-weight:600;font-size:14px;border:1px solid transparent;transition:transform .15s,box-shadow .25s,background .2s;cursor:pointer;font-family:inherit}
.btn.primary{background:linear-gradient(120deg,#06b6d4,#10b981);color:#fff;box-shadow:0 8px 24px var(--accent-glow)}
.btn.primary:hover{transform:translateY(-2px);filter:brightness(1.05)}
.btn.ghost{background:var(--bg-2);color:var(--text);border-color:var(--border)}
.btn.ghost:hover{background:var(--bg-3)}
.btn.big{padding:16px 32px;font-size:15px}
.btn.block{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* FORMS */
.field{margin-bottom:16px}
.field label{display:block;font-size:12px;color:var(--text-2);font-weight:600;margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;padding:14px 16px;background:var(--bg-2);border:1px solid var(--border);border-radius:12px;font-size:14px}
.field input:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
.field .error{color:var(--danger);font-size:12px;margin-top:6px}

/* TOAST */
.toast{position:fixed;bottom:30px;left:50%;transform:translateX(-50%) translateY(20px);padding:14px 24px;background:var(--text);color:var(--bg);border-radius:100px;font-size:13px;font-weight:600;box-shadow:var(--shadow-xl);z-index:5000;opacity:0;pointer-events:none;transition:all .3s;max-width:90vw;text-align:center}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.success{background:var(--success);color:#fff}
.toast.error{background:var(--danger);color:#fff}

/* MODAL */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.5);display:none;align-items:center;justify-content:center;z-index:2000;padding:16px;animation:fadeIn .2s;backdrop-filter:blur(6px)}
.modal.show{display:flex}
.modal-box{background:var(--bg-2);border-radius:20px;padding:28px;width:100%;max-width:520px;max-height:88vh;overflow-y:auto;box-shadow:var(--shadow-xl);animation:scaleIn .25s;border:1px solid var(--border)}
.modal-box h3{font-size:18px;font-weight:800;margin-bottom:18px}
.modal-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:20px}
.modal-actions button{padding:11px 20px;border-radius:10px;font-size:13px;font-weight:700;border:1px solid var(--border);background:var(--bg-3);cursor:pointer;font-family:inherit}

.hidden{display:none!important}
.muted{color:var(--text-3);font-size:13px}
.spinner{width:18px;height:18px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite;display:inline-block}

/* AUTH PAGES */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(circle at 20% 20%,rgba(6,182,212,.15),transparent 50%),radial-gradient(circle at 80% 80%,rgba(16,185,129,.12),transparent 50%),var(--bg)}
.auth-card{width:100%;max-width:420px;background:var(--bg-2);border-radius:20px;padding:36px 28px;box-shadow:var(--shadow-lg);border:1px solid var(--border)}
.auth-head{text-align:center;margin-bottom:28px}
.auth-head .brand-mark{width:52px;height:52px;margin:0 auto 14px}
.auth-head h1{font-size:24px;font-weight:800;letter-spacing:-.03em;margin-bottom:6px}
.auth-head p{color:var(--text-2);font-size:14px}
.auth-alt{text-align:center;margin-top:22px;color:var(--text-3);font-size:13px}
.auth-alt a{color:var(--accent);font-weight:700;text-decoration:none}
.pw-hint{font-size:11px;color:var(--text-3);margin-top:6px;line-height:1.5}
.success-box{padding:20px;background:rgba(5,150,105,.1);color:var(--success);border-radius:12px;text-align:center;font-size:14px;line-height:1.6}

/* MOBILE */
@media(max-width:768px){
  .site-header-inner{padding:10px 14px;gap:8px}
  .brand{font-size:16px;gap:8px}
  .brand-mark{width:30px;height:30px}
  .mobile-nav-toggle{display:flex}
  .nav{position:fixed;top:56px;right:0;bottom:0;width:280px;max-width:85vw;background:var(--bg-2);border-left:1px solid var(--border);flex-direction:column;align-items:stretch;padding:16px 14px calc(16px + env(safe-area-inset-bottom,0px));gap:6px;transform:translateX(100%);transition:transform .28s cubic-bezier(.32,.72,0,1);z-index:999;overflow-y:auto;box-shadow:-20px 0 60px rgba(0,0,0,.15)}
  .nav.open{transform:translateX(0)}
  .nav>a{padding:14px 16px;font-size:15px;border-radius:12px;min-height:48px;display:flex;align-items:center}
  .nav .theme-btn{width:44px;height:44px;margin-top:6px;align-self:flex-start}
  .site-footer-inner{grid-template-columns:1fr 1fr;gap:24px}
  .site-footer .brand-col{grid-column:1/-1}
  .footer-copy{flex-direction:column;text-align:center;gap:8px;font-size:11px}
}