:root{
  color-scheme: dark;
  --bg:#090d14; --card:#111823; --card2:#0d1420; --line:#253247;
  --text:#f4f7fb; --muted:#9aa9bc; --blue:#3b82f6; --blue2:#2563eb;
  --chip:#1a2635; --good:#3ddc97; --warn:#f6c453;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;min-height:100%;overflow-x:hidden;overflow-y:auto;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"Noto Sans TC","Microsoft JhengHei",sans-serif}
body{min-height:100vh;padding-bottom:110px;overscroll-behavior-y:auto;-webkit-overflow-scrolling:touch}
button,input{font:inherit}
button{cursor:pointer}
.app-header{position:sticky;top:0;z-index:30;display:flex;align-items:center;justify-content:space-between;padding:14px 16px 10px;background:rgba(9,13,20,.96);border-bottom:1px solid #151f2c;backdrop-filter:blur(10px)}
.eyebrow{font-size:11px;letter-spacing:.14em;color:#6f86a5;font-weight:800}.app-header h1{font-size:27px;line-height:1.1;margin:2px 0 0}.sync-badge{font-size:13px;font-weight:800;padding:7px 9px;border-radius:999px;background:#13231e;color:var(--good)}.sync-badge.offline{background:#272318;color:var(--warn)}
main{max-width:640px;margin:0 auto;padding:10px 12px 150px}.screen{display:none}.screen.active{display:block}.date-row{display:flex;gap:7px;align-items:center;margin:2px 0 10px}.date-input{height:42px;border:1px solid var(--line);border-radius:10px;background:#0c131d;color:var(--text);padding:0 10px;font-size:16px}.date-input.grow{width:100%}.icon-btn,.mini-action{height:42px;border:0;border-radius:10px;background:var(--chip);color:var(--text);font-weight:800}.icon-btn{width:42px;font-size:24px}.mini-action{padding:0 13px;color:#b8cdfd}
.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:13px;margin:0 0 10px;box-shadow:0 7px 20px rgba(0,0,0,.16)}.card h2{font-size:22px;margin:0 0 2px}.card p{font-size:15px;line-height:1.45;color:var(--muted);margin:2px 0 10px}.compact-grid{display:grid;gap:9px}.field-pair{display:grid;grid-template-columns:1fr 1fr;gap:9px}label{display:block;font-size:15px;font-weight:800;color:#e9eef6}label small{color:var(--muted);font-weight:600}input{width:100%;margin-top:5px;height:43px;border:1px solid var(--line);border-radius:10px;background:#0c131d;color:var(--text);padding:0 11px;font-size:19px;font-weight:750;outline:none}input:focus{border-color:var(--blue);box-shadow:0 0 0 2px rgba(59,130,246,.18)}
.field-line{display:flex;align-items:center;gap:8px;margin-top:8px}.field-label{font-size:16px;font-weight:850;min-width:56px}.chips{display:flex;gap:5px;flex-wrap:wrap;flex:1}.chips button{min-height:34px;border:1px solid transparent;border-radius:9px;background:var(--chip);color:#e7edf6;padding:5px 9px;font-size:13px;font-weight:780;white-space:nowrap}.chips button.selected{background:var(--blue);color:white;border-color:#5795ff;box-shadow:0 0 0 1px rgba(255,255,255,.06) inset}.meal-row{display:grid;grid-template-columns:46px 1fr;align-items:center;gap:7px;margin-top:9px}.meal-row>span{font-size:18px;font-weight:850}.icon-chips{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.icon-chips button,.meal-chips button{display:flex;align-items:center;justify-content:center;min-width:44px;min-height:48px;padding:5px 7px;font-size:25px;line-height:1}.meal-chips{display:grid;grid-template-columns:repeat(6,1fr);gap:6px;flex:1}.meal-chips button{font-size:24px}.chip-svg{width:29px;height:29px;display:block}.count-chips{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:4px}.count-chips button{min-width:0;width:100%;padding:5px 0;font-size:15px}.snack-chips button{flex:1;min-width:82px;font-size:14px}.exercise button{font-size:24px;min-height:50px}
.two-blocks{display:grid;grid-template-columns:1.25fr .75fr;gap:12px}.two-blocks>div+div{border-left:1px solid var(--line);padding-left:12px}.optional summary{font-size:18px;font-weight:850;cursor:pointer}.optional-fields{margin-top:12px}.weekly-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}.primary,.secondary{height:48px;border:0;border-radius:12px;font-size:17px;font-weight:900}.primary{background:var(--blue);color:white}.secondary{background:var(--chip);color:#d9e5ff;border:1px solid var(--line)}.full{width:100%;margin-top:8px}.history-list{display:grid;gap:7px}.history-row{display:flex;justify-content:space-between;align-items:center;background:#0d1420;border:1px solid var(--line);padding:10px;border-radius:11px}.history-row strong{font-size:16px}.history-row span{font-size:13px;color:var(--muted)}.sync-state{font-size:22px;font-weight:900;color:var(--warn);padding:6px 0}.save-spacer{height:92px}
.floating-save{position:fixed;z-index:25;left:50%;transform:translateX(-50%);bottom:72px;width:min(calc(100% - 28px),610px);height:52px;border:0;border-radius:14px;background:linear-gradient(180deg,#478cff,#2b6de2);color:white;font-size:18px;font-weight:900;box-shadow:0 10px 35px rgba(37,99,235,.38)}
.bottom-nav{position:fixed;z-index:40;left:0;right:0;bottom:0;height:64px;display:grid;grid-template-columns:repeat(4,1fr);padding-bottom:env(safe-area-inset-bottom);background:#0c131d;border-top:1px solid var(--line)}.bottom-nav button{border:0;background:transparent;color:#8293aa;font-size:12px;font-weight:800}.bottom-nav button span{display:block;font-size:18px;line-height:20px}.bottom-nav button.active{color:#72a5ff}
.toast{position:fixed;z-index:60;left:50%;transform:translateX(-50%) translateY(12px);bottom:142px;background:#172232;border:1px solid #31435d;color:white;padding:10px 15px;border-radius:999px;font-size:14px;font-weight:800;opacity:0;pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
@media(max-width:380px){.chips button{padding:5px 7px}.meal-chips{gap:4px}.meal-chips button{min-width:40px;font-size:21px}.field-pair,.weekly-grid{gap:7px}.icon-chips{gap:6px}}