/* Synapse public site — shared styles for index.php, mvp_signup.php, mvp_login.php */
:root{
  --navy:#0d3b3e;--navy-2:#124b4f;--blue:#1a6b6f;--teal:#3ec6c1;--green:#00b67a;
  --orange:#e8694a;--orange-2:#f08968;--amber:#f6a21e;
  --ink:#1a1f2e;--muted:#5a6275;--faint:#8a93a2;--line:#e2e6ef;--soft:#f5f7fb;--paper:#fff;
  --display:'Sora',sans-serif;--body:'DM Sans',sans-serif;--mono:'DM Mono',monospace;
  --radius:16px;--shadow:0 18px 50px rgba(13,59,62,.10);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--body);color:var(--ink);background:var(--paper);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--blue)}

/* Brand */
.brand{display:inline-flex;align-items:center;gap:10px;font-family:var(--display);font-weight:800;font-size:20px;color:var(--navy);letter-spacing:-.01em}
.brand svg{width:26px;height:26px;flex:0 0 auto}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:var(--display);font-weight:700;font-size:15px;border-radius:12px;padding:14px 22px;border:1.5px solid transparent;cursor:pointer;transition:transform .12s ease,background .15s ease,border-color .15s ease;white-space:nowrap}
.btn:hover{transform:translateY(-1px)}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover{background:var(--orange-2)}
.btn-dark{background:var(--navy);color:#fff}
.btn-dark:hover{background:var(--navy-2)}
.btn-ghost{background:transparent;color:var(--navy);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--navy)}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.28)}
.btn-ghost-light:hover{border-color:#fff}
.btn-block{width:100%}

/* Top nav */
.nav{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px}
.nav-links{display:flex;gap:26px;font-size:14.5px;color:var(--muted)}
.nav-links a:hover{color:var(--navy)}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-cta .btn{padding:10px 16px;font-size:14px;border-radius:10px}
.nav-login{font-size:14.5px;color:var(--muted);padding:10px 8px}
.nav-login:hover{color:var(--navy)}
@media(max-width:860px){.nav-links{display:none}}
@media(max-width:420px){.nav-cta{gap:4px}.nav-cta .btn{padding:9px 12px;font-size:13px}.nav-login{font-size:13.5px;padding:8px 6px}.brand{font-size:18px}}

/* Forms (signup/login) */
.auth{min-height:100vh;display:grid;grid-template-columns:1.05fr 1fr}
.auth-side{background:var(--navy);color:#fff;padding:48px clamp(28px,5vw,64px);display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
.auth-side::after{content:"";position:absolute;right:-140px;bottom:-140px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(62,198,193,.28),transparent 65%)}
.auth-side .brand{color:#fff}
.auth-side h2{font-family:var(--display);font-weight:800;font-size:clamp(26px,3vw,34px);line-height:1.15;letter-spacing:-.02em;margin:40px 0 18px;max-width:18ch}
.auth-side h2 em{font-style:normal;color:var(--orange-2)}
.auth-points{list-style:none;display:grid;gap:14px;max-width:42ch;position:relative;z-index:1}
.auth-points li{display:flex;gap:12px;font-size:15px;color:#cfe0e1;line-height:1.5}
.auth-points li::before{content:"";width:20px;height:20px;flex:0 0 auto;margin-top:2px;border-radius:6px;background:rgba(62,198,193,.18) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5 10.5l3 3 7-7' fill='none' stroke='%233ec6c1' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px no-repeat}
.auth-foot{font-family:var(--mono);font-size:12px;color:#7fa3a5;position:relative;z-index:1}
.auth-main{display:flex;align-items:center;justify-content:center;padding:48px 24px;background:var(--soft)}
.auth-card{width:100%;max-width:420px}
.auth-card h1{font-family:var(--display);font-weight:800;font-size:28px;color:var(--navy);letter-spacing:-.02em;margin-bottom:6px}
.auth-card .sub{color:var(--muted);font-size:15px;margin-bottom:26px}
.plan-pill{display:inline-flex;align-items:center;gap:8px;font-family:var(--mono);font-size:12px;color:var(--navy);background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 12px;margin-bottom:18px}
.plan-pill b{color:var(--orange)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--navy);margin-bottom:6px}
.field input{width:100%;padding:13px 14px;border:1.5px solid var(--line);border-radius:11px;font-family:var(--body);font-size:15px;background:#fff;color:var(--ink);transition:border-color .15s,box-shadow .15s}
.field input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(26,107,111,.12)}
.field .hint{font-size:12.5px;color:var(--faint);margin-top:6px}
.form-error{display:none;background:#fdecea;color:#a8322a;border-radius:10px;padding:10px 12px;font-size:14px;margin-bottom:14px}
.form-legal{font-size:12.5px;color:var(--faint);margin-top:14px;line-height:1.5}
.form-switch{text-align:center;font-size:14.5px;color:var(--muted);margin-top:22px}
.form-switch a{color:var(--blue);font-weight:600}
.form-switch a:hover{text-decoration:underline}
.auth-mobile-brand{display:none;margin-bottom:28px}
@media(max-width:880px){
  .auth{grid-template-columns:1fr}
  .auth-side{display:none}
  .auth-main{align-items:flex-start;padding-top:40px}
  .auth-mobile-brand{display:inline-flex}
}