/* Diet Web App AI v2.1.0
   Light/Dark theme via data-theme on .dwaa-root
*/
:root{
  --dwaa-bg:#ffffff;
  --dwaa-surface:#ffffff;
  --dwaa-surface2:rgba(240,253,250,.7);
  --dwaa-text:#0f172a;
  --dwaa-muted:#475569;
  --dwaa-border:rgba(15,23,42,.10);
  --dwaa-shadow:rgba(15,23,42,.06);
  --dwaa-accent:#0f766e;
  --dwaa-accent-soft:rgba(15,118,110,.12);
}

.dwaa-root[data-theme="dark"]{
  --dwaa-bg:#0b1220;
  --dwaa-surface:#0f172a;
  --dwaa-surface2:#0f172a;
  --dwaa-text:#e5e7eb;
  --dwaa-muted:#9ca3af;
  --dwaa-border:rgba(148,163,184,.18);
  --dwaa-shadow:rgba(0,0,0,.25);
  --dwaa-accent:#22c55e;
  --dwaa-accent-soft:rgba(34,197,94,.12);
}

.dwaa-root{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.35;color:var(--dwaa-text);background:var(--dwaa-bg);border-radius:18px}
.dwaa-shell{max-width:1100px;margin:18px auto;padding:16px;padding-bottom:92px}
@media(max-width:520px){.dwaa-shell{padding:12px;padding-bottom:92px}}

.dwaa-topbar{display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--dwaa-surface);border:1px solid var(--dwaa-border);border-radius:18px;padding:14px;box-shadow:0 10px 30px var(--dwaa-shadow)}
@media(max-width:520px){.dwaa-topbar{padding:12px;flex-direction:column;align-items:stretch}}

.dwaa-brand{display:flex;align-items:center;gap:12px}
.dwaa-logo{font-size:28px}
.dwaa-title{font-weight:900;font-size:18px}
.dwaa-subtitle{font-size:13px;color:var(--dwaa-muted)}

.dwaa-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
@media(max-width:520px){.dwaa-actions{justify-content:space-between}}

.dwaa-btn{appearance:none;border:0;border-radius:14px;padding:10px 14px;background:var(--dwaa-accent);color:#fff;font-weight:900;cursor:pointer;box-shadow:0 10px 20px rgba(15,118,110,.18)}
.dwaa-btn:hover{filter:brightness(.98)}
.dwaa-btn:active{transform:translateY(1px)}
.dwaa-btn-ghost{background:transparent;color:var(--dwaa-accent);border:1px solid color-mix(in srgb, var(--dwaa-accent) 40%, transparent);box-shadow:none}
.dwaa-btn-wide{width:100%;margin-top:10px}

.dwaa-main{margin-top:14px}
.dwaa-page{display:none}
.dwaa-page.is-active{display:block}

.dwaa-grid{display:grid;grid-template-columns:1fr;gap:14px}
@media(min-width:980px){.dwaa-grid{grid-template-columns:1fr 1fr}.dwaa-card-wide{grid-column:1 / -1}}

.dwaa-card{
  background:linear-gradient(180deg,var(--dwaa-surface2),var(--dwaa-surface));
  border:1px solid var(--dwaa-border);
  border-radius:18px;
  padding:14px;
  box-shadow:0 10px 30px rgba(15,23,42,.05);
}
.dwaa-card h2{margin:0 0 10px 0;font-size:15px}
.dwaa-muted{font-size:13px;color:var(--dwaa-muted)}

.dwaa-form label{display:flex;flex-direction:column;gap:6px;font-size:13px}
.dwaa-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:10px}
.dwaa-row-3{grid-template-columns:1fr 1fr 1fr}
@media(max-width:760px){.dwaa-row-3{grid-template-columns:1fr}}
@media(max-width:520px){.dwaa-row{grid-template-columns:1fr}}

.dwaa-input,.dwaa-form input,.dwaa-form select,.dwaa-textarea{
  border:1px solid var(--dwaa-border);
  border-radius:12px;
  padding:10px;
  background:var(--dwaa-surface);
  color:var(--dwaa-text);
}
.dwaa-textarea{resize:vertical;min-height:110px}
.dwaa-check{flex-direction:row!important;align-items:center;gap:8px}
.dwaa-check input{transform:translateY(1px)}

.dwaa-metrics{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media(max-width:520px){.dwaa-metrics{grid-template-columns:1fr}}
.dwaa-metric{background:var(--dwaa-surface);border:1px solid var(--dwaa-border);border-radius:16px;padding:12px}
.dwaa-metric-label{font-size:12px;color:var(--dwaa-muted)}
.dwaa-metric-value{font-size:22px;font-weight:900;margin-top:4px}
.dwaa-note{margin-top:10px;font-size:13px;color:var(--dwaa-muted)}

.dwaa-plan{display:flex;flex-direction:column;gap:12px}
.dwaa-plan-toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.dwaa-toolbar-right{display:flex;gap:10px;flex-wrap:wrap}
.dwaa-pillset{display:flex;gap:8px;flex-wrap:wrap}
.dwaa-pill{border:1px solid var(--dwaa-border);background:var(--dwaa-surface);color:var(--dwaa-text);border-radius:999px;padding:8px 12px;font-weight:900;cursor:pointer}
.dwaa-pill.is-active{background:var(--dwaa-accent);color:#fff;border-color:var(--dwaa-accent)}

.dwaa-meals{display:grid;grid-template-columns:1fr;gap:10px}
@media(min-width:980px){.dwaa-meals{grid-template-columns:1fr 1fr}}
.dwaa-meal{background:var(--dwaa-surface);border:1px solid var(--dwaa-border);border-radius:16px;padding:12px}
.dwaa-meal-title{font-weight:900;margin-bottom:8px}
.dwaa-meal-macros{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:8px}
@media(max-width:520px){.dwaa-meal-macros{grid-template-columns:repeat(2,1fr)}}
.dwaa-input-sm{border:1px solid var(--dwaa-border);border-radius:12px;padding:9px;background:var(--dwaa-surface);color:var(--dwaa-text)}

.dwaa-footerbar{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}
.dwaa-totals{display:flex;gap:10px;align-items:center;font-size:13px}

.dwaa-disclaimer{margin-top:6px;font-size:12px;color:var(--dwaa-muted);border-top:1px dashed var(--dwaa-border);padding-top:10px}

.dwaa-bmi-result{margin-top:14px;display:flex;gap:12px;flex-wrap:wrap}
.dwaa-bmi-result .dwaa-metric{min-width:220px}

.dwaa-water-box{margin-top:10px;display:flex;flex-direction:column;gap:12px}
.dwaa-water-bar{height:14px;background:rgba(148,163,184,.25);border-radius:999px;overflow:hidden}
.dwaa-water-bar span{display:block;height:100%;width:0%;background:var(--dwaa-accent);border-radius:999px}
.dwaa-water-stats{margin-top:10px}
.dwaa-water-actions{display:flex;gap:10px;flex-wrap:wrap}

.dwaa-grocery-add{display:flex;gap:10px;flex-wrap:wrap}
.dwaa-grocery-add .dwaa-input{flex:1;min-width:220px}
.dwaa-grocery-list{margin-top:14px;display:flex;flex-direction:column;gap:10px}
.dwaa-grocery-item{display:flex;justify-content:space-between;align-items:center;gap:10px;background:var(--dwaa-surface);border:1px solid var(--dwaa-border);border-radius:16px;padding:10px 12px}
.dwaa-grocery-item button{border:0;border-radius:12px;background:var(--dwaa-accent);color:#fff;font-weight:900;padding:8px 10px;cursor:pointer}
.dwaa-grocery-item.is-done{opacity:.65;text-decoration:line-through}

.dwaa-ai-box{display:flex;flex-direction:column;gap:10px}
.dwaa-ai-actions{display:flex;gap:10px;flex-wrap:wrap}
.dwaa-ai-output{background:var(--dwaa-surface);border:1px solid var(--dwaa-border);border-radius:16px;padding:12px;min-height:120px;white-space:pre-wrap;color:var(--dwaa-text)}

/* Bottom nav: mobile-first */
.dwaa-bottomnav{
  position:fixed;left:0;right:0;bottom:0;z-index:999999;
  background:var(--dwaa-surface);
  border-top:1px solid var(--dwaa-border);
  display:flex;justify-content:center;
  padding:10px 10px env(safe-area-inset-bottom);
  gap:8px;
}
.dwaa-navitem{
  border:1px solid var(--dwaa-border);
  background:transparent;
  color:var(--dwaa-text);
  border-radius:16px;
  padding:10px 10px;
  min-width:74px;
  display:flex;flex-direction:column;align-items:center;gap:2px;
  font-weight:900;cursor:pointer;
  touch-action:manipulation;
}
@media(max-width:420px){.dwaa-navitem{min-width:64px;padding:10px 8px}}
.dwaa-navitem span{font-size:11px;color:var(--dwaa-muted)}
.dwaa-navitem.is-active{background:var(--dwaa-accent-soft);border-color:color-mix(in srgb, var(--dwaa-accent) 35%, transparent);color:var(--dwaa-accent)}

/* Modal */
.dwaa-modal{position:fixed;inset:0;background:rgba(15,23,42,.55);display:none;align-items:center;justify-content:center;padding:16px;z-index:999999}
.dwaa-modal.is-open{display:flex}
.dwaa-modal-card{width:min(760px,100%);background:var(--dwaa-surface);border-radius:18px;box-shadow:0 20px 60px rgba(0,0,0,.25);overflow:hidden}
.dwaa-modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;padding:14px;border-bottom:1px solid var(--dwaa-border)}
.dwaa-modal-title{font-weight:900;font-size:16px}
.dwaa-x{border:0;background:transparent;font-size:24px;line-height:1;cursor:pointer;padding:0 6px;color:var(--dwaa-text)}
.dwaa-modal-body{padding:14px;max-height:55vh;overflow:auto}
.dwaa-list{display:flex;flex-direction:column;gap:10px}
.dwaa-item{border:1px solid var(--dwaa-border);border-radius:16px;padding:12px;display:flex;justify-content:space-between;gap:10px;align-items:center;background:var(--dwaa-surface)}
.dwaa-item strong{display:block}
.dwaa-item small{color:var(--dwaa-muted)}
.dwaa-item button{border:0;border-radius:12px;background:var(--dwaa-accent);color:#fff;font-weight:900;padding:9px 12px;cursor:pointer}
.dwaa-modal-foot{padding:14px;border-top:1px solid var(--dwaa-border);display:flex;justify-content:flex-end}