/* ============================================================
   Zillow 360 Agent — base design system (shared by all themes)
   Tokens + reset + reusable components. Area themes layer on top.
   ============================================================ */
:root {
  --ink:#0f1b2d;
  --brand:#13315c;          /* deep navy */
  --brand-2:#1b3a6b;
  --primary:#2563eb;        /* action blue */
  --primary-600:#1d4ed8;
  --accent:#0fb9b1;         /* 360 / immersive teal */
  --accent-600:#0e9e97;
  --bg:#f6f8fc;
  --card:#ffffff;
  --line:#e3e8f0;
  --muted:#5b6b82;
  --ok:#15a06b; --warn:#d9822b; --bad:#d64545;
  --radius:12px; --radius-sm:8px;
  --shadow:0 1px 2px rgba(16,27,45,.06), 0 8px 24px rgba(16,27,45,.06);
  --shadow-sm:0 1px 2px rgba(16,27,45,.08);
  --maxw:1140px;
  --font:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.55;-webkit-font-smoothing:antialiased;}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .5em;font-weight:700;letter-spacing:-.01em;}
p{margin:0 0 1em;}
a{color:var(--primary);text-decoration:none;}
a:hover{text-decoration:underline;}
img{max-width:100%;display:block;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px;}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.5rem;font:inherit;font-weight:600;
  padding:.7rem 1.25rem;border-radius:var(--radius-sm);border:1px solid transparent;
  cursor:pointer;transition:transform .04s ease,background .15s ease,box-shadow .15s ease;text-decoration:none;}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-600);text-decoration:none;}
.btn-accent{background:var(--accent);color:#04201e;}
.btn-accent:hover{background:var(--accent-600);text-decoration:none;}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{background:#fff;text-decoration:none;}
.btn-block{display:flex;width:100%;justify-content:center;}
.btn-lg{padding:.95rem 1.6rem;font-size:1.05rem;}

/* cards */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);}
.card-pad{padding:22px;}

/* forms */
.field{margin-bottom:1rem;}
.field label{display:block;font-weight:600;font-size:.9rem;margin-bottom:.35rem;color:var(--brand);}
.input{width:100%;font:inherit;padding:.7rem .85rem;border:1px solid var(--line);border-radius:var(--radius-sm);background:#fff;color:var(--ink);}
.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.15);}

/* utility */
.pill{display:inline-block;padding:.2rem .6rem;border-radius:999px;font-size:.75rem;font-weight:600;}
.pill-ok{background:#e4f7ee;color:var(--ok);}
.pill-warn{background:#fdf0e1;color:var(--warn);}
.pill-bad{background:#fbe6e6;color:var(--bad);}
.muted{color:var(--muted);}
.text-center{text-align:center;}
.grid{display:grid;gap:18px;}
.alert{padding:.8rem 1rem;border-radius:var(--radius-sm);margin-bottom:1rem;font-size:.95rem;}
.alert-bad{background:#fbe6e6;color:#a32525;border:1px solid #f3c9c9;}
.alert-ok{background:#e4f7ee;color:#0c7a4f;border:1px solid #bfe9d4;}