:root {
  color-scheme:light dark;
  --agenda-time:#626960;--preview-line:12px;--day-number-height:14px;--more-height:7px;--paper:#faf9f6;--surface:#fff;--ink:#262a28;--muted:#626960;--line:#daddd5;
  --accent:#426550;--on-accent:#fff;--selected:#edf2eb;--outside:#f6f6f2;--outside-ink:#697166;
  --chip:#f0f4ed;--chip-ink:#3f5b49;--chip-selected:#dee8d9;--chip-line:#9bb49b;
  --sat:#476780;--sun:#9d5046;--hover:#eeeee8;--input-line:#a4afa0;--focus:#527960;
  --warning:#fff0db;--warning-ink:#654016;--error:#a3382e;--danger:#a44337;--secondary:#e9eae3;
  font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif;
  color:var(--ink);background:var(--paper);font-synthesis:none;
}
@media(prefers-color-scheme:dark) {
  :root {--agenda-time:#b2bdb2;--paper:#171c19;--surface:#202722;--ink:#edf1eb;--muted:#b2bdb2;--line:#465247;
    --accent:#a8cbb0;--on-accent:#17231b;--selected:#304737;--outside:#1b211d;--outside-ink:#a5b1a6;
    --chip:#2a3a2e;--chip-ink:#d6e7d6;--chip-selected:#3d5541;--chip-line:#89a88e;
    --sat:#a8cbed;--sun:#f1afa5;--hover:#303a32;--input-line:#728574;--focus:#c5e6cd;
    --warning:#40351f;--warning-ink:#ffe1a4;--error:#ffb6a9;--danger:#9c392d;--secondary:#364138;}
}
*{box-sizing:border-box}body{margin:0}button,input,textarea{font:inherit}button{color:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent;touch-action:manipulation;border:0;background:none}
button,input,textarea{-webkit-appearance:none;appearance:none}button:disabled{opacity:.4;cursor:default}button:focus-visible{outline:3px solid var(--focus);outline-offset:2px}button[hidden],[hidden]{display:none!important}
.app{width:100%;margin:0;padding:env(safe-area-inset-top) env(safe-area-inset-right) calc(100px + env(safe-area-inset-bottom)) env(safe-area-inset-left)}
.agenda,.app-footer,.auth-panel,.banner,#retry{margin-left:12px;margin-right:12px}
.brand{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-start;gap:0 4px;margin:0 4px;min-width:0}
.brand-name{font-size:22px;letter-spacing:-1px;font-weight:650;white-space:nowrap}.brand-dot{color:var(--accent)}
.month-toolbar{display:contents}.month-actions{display:flex;gap:0;align-items:center}
h1{font-size:18px;font-weight:600;letter-spacing:-.5px;margin:0;white-space:nowrap}h1 .year{font-size:12px;color:var(--muted);font-weight:400;letter-spacing:0;margin-left:3px}
.icon-button{min-width:44px;min-height:44px;font-size:30px;line-height:1;border-radius:8px}.icon-button:hover{background:var(--hover)}
.today-button{min-height:44px;min-width:44px;padding:0 5px;font-size:13px;border:1px solid var(--input-line);border-radius:8px}
.weekdays,.month-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));width:100%}.weekdays{text-align:center;font-size:11px;color:var(--muted);padding:2px 0}.sat{color:var(--sat)}.sun{color:var(--sun)}
.month-grid{height:var(--calendar-height,55svh);grid-auto-rows:var(--day-height,82px);overflow-y:auto;overflow-x:hidden;overscroll-behavior-y:contain;scrollbar-width:none;border-top:1px solid var(--line);border-left:1px solid var(--line);background:var(--surface)}
.day{position:relative;min-width:0;overflow:hidden;padding:0;text-align:left;border-bottom:1px solid var(--line);border-right:1px solid var(--line);border-radius:0;display:grid;grid-template-rows:var(--day-number-height) calc(5 * var(--preview-line)) var(--more-height);min-height:0;align-content:start;align-items:start}
.day.outside{background:var(--outside);color:var(--outside-ink)}.day.selected{background:var(--selected);box-shadow:inset 0 -2px var(--accent)}
.day-number{display:block;justify-self:start;min-width:23px;height:var(--day-number-height);font-size:13px;line-height:1;padding:0;margin:0;border-radius:3px;font-variant-numeric:tabular-nums}
.day.today .day-number{background:var(--accent);color:var(--on-accent)}
.day-previews{min-height:0;min-width:0;display:flex;flex-direction:column;gap:0;overflow:hidden}
.day-title{display:block;flex:none;min-width:0;max-width:100%;height:var(--preview-line);font-size:11px;line-height:var(--preview-line);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;padding:0;color:var(--chip-ink);background:var(--chip);border-radius:2px}.day.selected .day-title{background:var(--chip-selected)}
.day-more{height:var(--more-height);display:flex;align-items:center;justify-content:center;color:var(--accent)}.day-more svg{display:block;max-height:100%;flex:none}
.agenda{margin-top:6px}h2{font-size:19px;font-weight:600;margin:0}.event-list{border-top:1px solid var(--line)}
.event-row{display:flex;align-items:flex-start;width:100%;text-align:left;gap:12px;padding:8px 0;border-bottom:1px solid var(--line);min-height:44px}
.event-time{flex:none;width:4.5em;font-size:14px;font-weight:400;color:var(--agenda-time);font-variant-numeric:tabular-nums;line-height:1.5;overflow-wrap:anywhere}
.event-body{min-width:0;flex:1}.event-title{font-size:15px;line-height:1.5;font-weight:700;overflow-wrap:anywhere}.event-memo{font-size:12px;line-height:1.6;color:var(--muted);margin:2px 0 0;white-space:pre-wrap;overflow-wrap:anywhere}.event-chevron{font-size:20px;color:var(--muted)}.empty{padding:34px 0;color:var(--muted);font-size:14px;text-align:center}
.app-footer{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:12px 78px 12px 0;margin-top:8px}.prototype{font-size:11px;border:1px solid var(--line);padding:4px 8px;border-radius:5px;color:var(--muted)}
.add-button{position:fixed;right:calc(16px + env(safe-area-inset-right));bottom:calc(24px + env(safe-area-inset-bottom));width:58px;height:58px;border-radius:19px;background:var(--accent);color:var(--on-accent);font-size:33px;box-shadow:0 5px 16px #304b382a;z-index:3}
.toast{position:fixed;bottom:calc(92px + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);background:var(--ink);color:var(--paper);padding:10px 16px;border-radius:8px;font-size:13px;max-width:calc(100vw - 36px);width:max-content;z-index:6;pointer-events:none;opacity:0}.toast.visible{opacity:1}
.banner{background:var(--warning);color:var(--warning-ink);padding:12px;font-size:13px;line-height:1.6;border-radius:6px;overflow-wrap:anywhere}
dialog{width:min(460px,calc(100% - 28px));max-height:calc(100dvh - 28px - env(safe-area-inset-top) - env(safe-area-inset-bottom));padding:22px;border:0;border-radius:18px;color:var(--ink);background:var(--paper);overflow:auto;box-shadow:0 20px 70px #0002}dialog::backdrop{background:#0a130db0}body:has(dialog[open]){overflow:hidden}
.form-heading{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-bottom:14px}.form-heading h2{font-size:20px}form label{display:block;min-width:0;font-size:13px;font-weight:500;margin-bottom:18px}
input:not([type=checkbox]),textarea{display:block;width:100%;min-width:0;max-width:100%;margin-top:7px;border:1px solid var(--input-line);border-radius:8px;background:var(--surface);padding:11px 8px;font-size:16px;color:var(--ink);min-height:46px}textarea{resize:vertical;line-height:1.6}input:focus,textarea:focus{outline:2px solid var(--focus);outline-offset:1px}input:disabled,textarea:disabled{opacity:.5}
.time-fields,.date-fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.all-day{display:flex;align-items:center;justify-content:space-between;min-height:44px}
input[type=checkbox]{width:44px;height:27px;border-radius:20px;background:var(--input-line);position:relative;margin:0;cursor:pointer}input[type=checkbox]:after{content:'';position:absolute;width:21px;height:21px;top:3px;left:3px;border-radius:50%;background:var(--surface);box-shadow:0 1px 3px #0002}input[type=checkbox]:checked{background:var(--accent)}input[type=checkbox]:checked:after{left:20px}
.optional{font-size:11px;color:var(--muted);font-weight:400;margin-left:3px}.field-help{font-size:12px;line-height:1.6;color:var(--muted);margin:0 0 14px}.form-error{font-size:13px;line-height:1.6;color:var(--error);margin:0 0 14px}.form-error:empty{display:none}
.form-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}.save-button{margin-left:auto;background:var(--accent);color:var(--on-accent);min-width:130px;min-height:48px;border-radius:9px}.delete-button{color:var(--error);min-width:60px;min-height:48px}.confirm-dialog h2{font-size:18px}.confirm-dialog p{overflow-wrap:anywhere;line-height:1.6;font-size:14px}.confirm-actions{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;width:100%}.confirm-actions button{width:100%;min-width:0;min-height:48px;height:100%;margin:0;padding:10px 4px;overflow-wrap:anywhere}.secondary-button,.danger-button{padding:12px 15px;border-radius:8px;min-height:46px;font-size:14px}.secondary-button{background:var(--secondary)}.danger-button{background:var(--danger);color:white}
.text-button{font-size:12px;min-height:44px;padding:8px;color:var(--accent)}.auth-panel{max-width:380px;margin:40px auto;padding:0 12px}.auth-panel>p{font-size:14px;line-height:1.8;color:var(--muted)}.auth-panel h1{font-size:22px;white-space:normal}.auth-panel .save-button{width:100%}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
/* Controls keep their tap areas; only a genuinely narrow/enlarged header wraps. */
@media(max-width:350px){dialog{padding:16px}.date-fields{grid-template-columns:1fr}}
@media(min-width:740px){.day-number{font-size:14px}}
.refresh-button{display:inline-flex;align-items:center;justify-content:center;border:0;background:none;border-radius:0;color:var(--ink)}
.refresh-button:hover{background:none;color:var(--ink)}
.refresh-button[aria-busy="true"] svg{animation:refresh-turn 1s linear infinite}
@keyframes refresh-turn{to{transform:rotate(360deg)}}
@media(prefers-reduced-motion:reduce){.refresh-button[aria-busy="true"] svg{animation:none}.refresh-button[aria-busy="true"]{opacity:.35}}
.time-fields{margin-bottom:18px}.time-field label{margin:0;font-size:13px}
.time-trigger{display:block;width:100%;min-width:0;min-height:46px;margin-top:7px;padding:11px 8px;text-align:left;font-size:16px;font-variant-numeric:tabular-nums;border:1px solid var(--input-line);border-radius:8px;background:var(--surface);color:var(--ink)}
.time-picker{position:fixed;inset:auto;left:var(--picker-x,50%);top:var(--picker-y,50%);transform:translate(-50%,-50%);margin:0;width:min(460px,calc(var(--picker-width,100vw) - 28px - env(safe-area-inset-left) - env(safe-area-inset-right)));max-height:calc(var(--picker-height,100dvh) - 28px - env(safe-area-inset-top) - env(safe-area-inset-bottom));padding:16px;overflow:hidden}
.time-picker[open]{display:flex;flex-direction:column;gap:10px}
.time-picker h2{font-size:19px;flex:none}.time-picker .field-help{margin:0;flex:none;line-height:1.5}
/* Two vertical wheels: the centered row is the draft selection. */
.picker-choices{overflow:auto;min-height:0;overscroll-behavior:contain;padding:3px}
.wheel-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;--wheel-row:44px;--wheel-height:clamp(88px,calc(var(--picker-height,100dvh) - 220px),220px)}
.wheel-column{min-width:0}.wheel-column h3{font-size:13px;font-weight:500;text-align:center;margin:0 0 6px}
.wheel-frame{position:relative;isolation:isolate;border-radius:8px;overflow:hidden}
.wheel-selection{position:absolute;pointer-events:none;left:0;right:0;top:50%;height:var(--wheel-row);transform:translateY(-50%);background:var(--selected);border-top:1px solid var(--input-line);border-bottom:1px solid var(--input-line);z-index:-1}
.time-wheel{height:var(--wheel-height);overflow-x:hidden;overflow-y:auto;padding-block:calc((var(--wheel-height) - var(--wheel-row))/2);scroll-snap-type:y mandatory;overscroll-behavior-y:contain;touch-action:pan-y;-webkit-overflow-scrolling:touch;scrollbar-width:none;outline-offset:-3px;cursor:ns-resize;user-select:none;-webkit-user-select:none}
.time-wheel::-webkit-scrollbar{display:none}.time-wheel:focus-visible{outline:3px solid var(--focus);border-radius:8px}
.wheel-option{height:var(--wheel-row);line-height:var(--wheel-row);scroll-snap-align:center;text-align:center;font-size:24px;font-variant-numeric:tabular-nums;font-weight:400;color:var(--muted);cursor:pointer;white-space:nowrap}
.wheel-option[aria-selected="true"]{font-weight:600;color:var(--ink)}
.picker-actions{flex:none;padding-top:2px}.picker-actions .save-button{font-size:14px}

.month-grid::-webkit-scrollbar{display:none}