:root{color:#0b1f40;font-synthesis:none;text-rendering:optimizelegibility;--paper:#faf9f5;--surface:#fffefa;--ink:#0b1f40;--muted:#647083;--line:#bac1ca;--line-soft:#d8dce2;--blue:#1258ef;--blue-dark:#0d48d5;--yellow:#f5bb38;--coral:#ff7162;background:#faf9f5;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,Hiragino Kaku Gothic ProN,Yu Gothic,Meiryo,sans-serif}*{box-sizing:border-box}html,body,#root{min-width:320px;min-height:100%;margin:0}body{min-height:100vh;overflow-x:hidden}html{scroll-behavior:smooth}a{color:inherit}button,input,select{font:inherit}button{color:inherit}button:focus-visible,input:focus-visible,select:focus-visible{outline-offset:2px;outline:3px solid #1258ef47}.app-frame{background:var(--paper);grid-template-rows:80px minmax(0,1fr);grid-template-columns:minmax(0,1fr) 420px;min-height:100vh;transition:grid-template-columns .24s cubic-bezier(.2,.8,.2,1);display:grid}.app-frame:fullscreen{width:100%;height:100%;overflow:auto}.app-frame--editing{grid-template-columns:minmax(640px,1fr) 410px 260px}.app-header{border:1px solid var(--line);background:#faf9f5f5;border-left:0;grid-area:1/1/auto/3;align-items:center;min-width:0;height:80px;padding:0 32px;display:flex}.brand{letter-spacing:.14em;font-size:2.15rem;font-weight:900;line-height:1}.fullscreen-button{cursor:pointer;background:0 0;border:0;align-items:center;gap:10px;margin-left:auto;padding:12px 4px 12px 18px;font-size:1rem;font-weight:700;display:inline-flex}.timer-canvas{background:var(--paper);grid-area:2/1;align-items:stretch;min-width:0;min-height:700px;display:flex}.timer-content{flex-direction:column;justify-content:center;width:100%;padding:clamp(36px,5vh,64px) clamp(38px,4vw,76px) 30px;display:flex}.current-phase{color:var(--blue);letter-spacing:-.04em;margin:0 0 2px;font-size:clamp(2.2rem,4vw,4.2rem);font-weight:900;line-height:1.12}.countdown{color:var(--blue);letter-spacing:-.075em;font-variant-numeric:tabular-nums;white-space:nowrap;margin:-8px 0 -2px;font-size:clamp(9rem,17.2vw,18rem);font-weight:900;line-height:.98}.next-phase{color:var(--ink);margin:12px 0 34px;font-size:clamp(1.35rem,2.15vw,2.15rem);font-weight:800;line-height:1.35}.next-phase strong{color:var(--yellow)}.timeline{width:100%;margin:0 0 48px}.timeline-track{gap:3px;height:18px;display:flex}.timeline-segment{background:color-mix(in srgb, var(--phase-color) 36%, white);border-radius:5px;min-width:8px;position:relative;overflow:hidden}.timeline-fill{background:var(--phase-color);transition:width 90ms linear;position:absolute;inset:0 auto 0 0}.timeline-labels{height:27px;color:var(--ink);font-variant-numeric:tabular-nums;justify-content:space-between;margin-top:8px;font-size:.9rem;font-weight:650;display:flex;position:relative}.timeline-labels span:not(:first-child):not(:last-child){position:absolute;transform:translate(-50%)}.timeline-labels span:before{content:"";background:var(--muted);width:1px;height:7px;margin:-8px auto 2px;display:block}.timer-actions{justify-content:center;gap:22px;display:flex}.primary-button,.secondary-button,.edit-button,.add-button{cursor:pointer;border-radius:10px;justify-content:center;align-items:center;gap:14px;min-height:66px;font-size:1.18rem;font-weight:800;transition:transform .15s,background-color .15s,opacity .15s;display:inline-flex}.primary-button:active,.secondary-button:active,.edit-button:active,.add-button:active{transform:translateY(1px)}.primary-button{border:2px solid var(--blue);color:#fff;background:var(--blue);min-width:250px;padding:0 28px}.primary-button:hover{background:var(--blue-dark)}.secondary-button{border:2px solid var(--ink);min-width:220px;color:var(--ink);background:0 0;padding:0 28px}.secondary-button:hover:not(:disabled){background:#fff}.secondary-button:disabled{cursor:not-allowed;opacity:.35}.session-panel{border-right:1px solid var(--line);border-left:1px solid var(--line);background:var(--surface);grid-area:2/2;min-width:0}.session-panel-inner{flex-direction:column;height:100%;min-height:700px;padding:40px 22px 30px;display:flex}.session-panel h2{letter-spacing:.01em;margin:0 10px 24px;font-size:1.42rem}.phase-list{flex-direction:column;gap:14px;display:flex}.phase-card{border:1px solid var(--line);background:#ffffff70;border-radius:9px;min-height:145px;padding:20px 18px 17px 26px;transition:opacity .16s,transform .16s;position:relative;overflow:hidden}.phase-card:before{content:"";background:var(--phase-color);width:9px;position:absolute;inset:0 auto 0 0}.phase-card--active{border:2px solid var(--blue);box-shadow:0 4px 18px #1258ef14}.phase-card--complete{opacity:.56}.phase-card--upcoming{opacity:.88}.phase-card-main{grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:12px;display:grid}.phase-number{width:40px;height:40px;color:var(--ink);background:var(--phase-color);font-variant-numeric:tabular-nums;border-radius:50%;place-items:center;font-weight:900;display:grid}.phase-card--active .phase-number{color:#fff}.phase-card h3{white-space:nowrap;text-overflow:ellipsis;margin:0;font-size:1.15rem;overflow:hidden}.phase-duration{font-variant-numeric:tabular-nums;font-size:1.18rem}.sound-preview{border:1px solid var(--line-soft);width:100%;color:var(--ink);text-align:left;cursor:pointer;background:0 0;border-radius:8px;grid-template-columns:auto 1fr auto;align-items:center;gap:12px;margin-top:18px;padding:10px 12px;display:grid}.sound-preview span{font-size:.92rem;font-weight:700}.sound-preview svg:last-child{color:var(--phase-color)}.session-total{border-top:1px solid var(--line);justify-content:space-between;align-items:center;margin-top:28px;padding:22px 10px 0;font-size:1.25rem;font-weight:800;display:flex}.session-total strong{font-variant-numeric:tabular-nums;font-size:1.75rem}.edit-button{border:1.5px solid var(--blue);width:100%;min-height:60px;color:var(--blue);background:0 0;margin-top:auto}.edit-button:hover{color:#fff;background:var(--blue)}.settings-drawer{z-index:20;border-right:1px solid var(--line);border-left:1px solid var(--line);background:#fff;grid-area:1/3/3;min-width:0;display:none}.settings-drawer--open{flex-direction:column;display:flex}.drawer-header{border-bottom:1px solid var(--line);align-items:center;gap:12px;min-height:56px;padding:0 16px;display:flex}.drawer-header h2{margin:0;font-size:1rem}.icon-button{cursor:pointer;background:0 0;border:0;place-items:center;padding:8px;display:grid}.drawer-content{padding:14px 16px 20px;overflow-y:auto}.drawer-content>h3{margin:2px 0 7px;font-size:1rem}.phase-editors{flex-direction:column;gap:0;display:flex}.phase-editor{border-bottom:1px solid var(--line-soft);padding:9px 0 12px}.phase-editor-heading{align-items:center;margin-bottom:7px;display:flex}.editor-number{border-radius:50%;place-items:center;width:32px;height:32px;font-size:.8rem;font-weight:900;display:grid}.reorder-controls{margin-left:8px;display:flex}.reorder-controls button,.delete-button{cursor:pointer;background:0 0;border:0;place-items:center;padding:7px;display:grid}.reorder-controls button:disabled,.delete-button:disabled{cursor:not-allowed;opacity:.25}.delete-button{margin-left:auto}.field{margin-bottom:8px;display:block}.field>span,.duration-field>span{margin-bottom:5px;font-size:.73rem;font-weight:800;display:block}.field input,.field select,.duration-field input{border:1px solid var(--line);width:100%;height:32px;color:var(--ink);background:#fff;border-radius:4px;padding:0 10px;font-size:.82rem}.duration-field{margin-bottom:8px}.duration-field>div{grid-template-columns:1fr auto 1fr;align-items:center;gap:8px;display:grid}.duration-field b{font-size:1rem}.preview-button{color:var(--blue);cursor:pointer;background:0 0;border:0;align-items:center;gap:8px;padding:3px 0;font-size:.75rem;font-weight:800;display:inline-flex}.add-button{border:1.5px dashed var(--blue);width:100%;min-height:44px;color:var(--blue);background:0 0;margin-top:10px;font-size:.88rem}.drawer-scrim{display:none}.content-guide{--guide-gutter:clamp(28px, 6.25vw, 96px);border-top:1px solid var(--ink);background:#f7f4ec}.guide-intro,.guide-section,.guide-ad-wrap,.site-footer{padding-inline:var(--guide-gutter)}.guide-intro{grid-template-columns:minmax(0,1fr) minmax(220px,.7fr);align-items:center;gap:clamp(48px,8vw,140px);max-width:1536px;min-height:420px;margin:0 auto;padding-block:88px;display:grid}.guide-intro>div{max-width:680px}.guide-intro h2{letter-spacing:-.055em;margin:0 0 28px;font-size:clamp(3rem,5vw,5.4rem);line-height:1.05}.guide-intro p{max-width:610px;margin:0;font-size:clamp(1.05rem,1.55vw,1.4rem);font-weight:650;line-height:1.9}.back-to-timer{border-top:1px solid var(--ink);place-self:end;align-items:center;gap:30px;min-width:220px;padding:18px 0;font-weight:800;text-decoration:none;display:inline-flex}.back-to-timer span{color:var(--blue);margin-left:auto;font-size:1.4rem}.guide-ad-wrap{max-width:1536px;margin:0 auto;padding-bottom:80px}.guide-ad-wrap:empty{display:none}.ad-placeholder,.ad-region{color:#526077;text-align:center;background:#ffffff47;border:1px dashed #6d7990;place-items:center;min-height:132px;display:grid}.ad-placeholder span{margin-bottom:6px;font-weight:800;display:block}.ad-placeholder small,.ad-label{letter-spacing:.06em;font-size:.72rem}.ad-region{min-height:100px;padding:22px 10px 10px;display:block;position:relative}.ad-label{color:var(--muted);position:absolute;top:5px;left:50%;transform:translate(-50%)}.guide-section{border-top:1px solid var(--ink);max-width:1536px;margin:0 auto;padding-block:82px}.guide-section>h2,.trust-section h2{letter-spacing:-.035em;margin:0 0 28px;font-size:clamp(2rem,3vw,3.15rem);line-height:1.1}.how-to-list,.tips-list{margin:0;padding:0;list-style:none}.how-to-list{border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);grid-template-columns:repeat(3,minmax(0,1fr));display:grid}.how-to-list li{grid-template-columns:auto minmax(0,1fr);gap:26px;min-width:0;padding:32px 28px 34px 0;display:grid}.how-to-list li+li{border-left:1px solid var(--ink);padding-left:28px}.guide-number,.tips-list>li>span{color:var(--blue);letter-spacing:-.06em;font-variant-numeric:tabular-nums;font-size:clamp(3.4rem,5vw,5rem);font-weight:900;line-height:.9}.how-to-list h3,.tips-list h3,.time-plan-row h3{margin:0;font-size:1.25rem;line-height:1.3}.how-to-list p,.tips-list p{color:#34445e;margin:8px 0 0;font-weight:550;line-height:1.75}.time-plan-table{border-top:1px solid var(--ink);border-bottom:1px solid var(--ink)}.time-plan-row{grid-template-columns:minmax(160px,.8fr) minmax(115px,.45fr) minmax(0,2fr);align-items:center;min-height:104px;display:grid}.time-plan-row+.time-plan-row{border-top:1px solid #7f8998}.time-plan-row>*{min-width:0;padding:24px 28px}.time-plan-row h3{padding-left:12px}.time-plan-row strong{color:var(--blue);letter-spacing:-.05em;text-align:center;font-variant-numeric:tabular-nums;border-left:1px solid #7f8998;border-right:1px solid #7f8998;font-size:clamp(2.2rem,3.4vw,3.7rem);line-height:1}.time-plan-row p{flex-wrap:wrap;gap:12px 20px;margin:0;font-size:1.08rem;font-weight:800;display:flex}.plan-phase:after{content:"・";color:var(--ink);margin-left:18px}.plan-phase:last-child:after{content:"";margin:0}.plan-phase--1{color:var(--blue)}.plan-phase--2{color:var(--coral)}.plan-phase--3{color:#b97900}.tips-list{border-top:1px solid var(--ink);grid-template-columns:repeat(2,minmax(0,1fr));display:grid}.tips-list li{border-bottom:1px solid var(--ink);grid-template-columns:58px minmax(0,1fr);gap:20px;padding:34px 42px 34px 0;display:grid}.tips-list li:nth-child(2n){border-left:1px solid var(--ink);padding-left:42px}.tips-list>li>span{font-size:2.25rem}.faq-list{border:1px solid var(--ink)}.faq-list details+details{border-top:1px solid var(--ink)}.faq-list summary{cursor:pointer;padding:22px 70px 22px 24px;font-size:1.05rem;font-weight:800;list-style:none;position:relative}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:"+";color:var(--blue);font-size:1.8rem;font-weight:400;line-height:1;position:absolute;top:50%;right:26px;transform:translateY(-50%)}.faq-list details[open] summary:after{content:"−"}.faq-list details[open] summary{border-bottom:1px solid #a3abb6}.faq-list details p{color:#34445e;max-width:900px;margin:0;padding:22px 24px 26px;line-height:1.8}.trust-section{background:#f2e7bf;grid-template-columns:minmax(0,1.5fr) minmax(280px,.8fr);gap:clamp(64px,10vw,160px);display:grid}.trust-section h2{font-size:1.75rem}.trust-section p{margin:0 0 14px;line-height:1.85}.trust-section a{color:var(--blue-dark);font-weight:800}.site-footer{color:#fff;background:var(--blue);max-width:1536px;min-height:118px;box-shadow:0 0 0 100vmax var(--blue);clip-path:inset(0 -100vmax);grid-template-columns:auto 1fr auto;align-items:center;gap:60px;margin:0 auto;display:grid}.footer-brand{letter-spacing:.12em;font-size:2.6rem;font-weight:900;line-height:1;text-decoration:none}.site-footer nav{justify-content:center;gap:30px;display:flex}.site-footer nav a{font-weight:750;text-decoration:none}.site-footer nav a:hover{text-underline-offset:4px;text-decoration:underline}.site-footer small{white-space:nowrap}@media (width<=1220px){.app-frame,.app-frame--editing{grid-template-columns:minmax(0,1fr) 360px}.settings-drawer{width:min(360px,92vw);position:fixed;inset:0 0 0 auto;box-shadow:-16px 0 42px #0b1f4029}.drawer-scrim{z-index:15;background:#0b1f403b;border:0;display:block;position:fixed;inset:0}.countdown{font-size:clamp(7rem,16vw,13rem)}.timer-content{padding-inline:38px}.primary-button{min-width:210px}.secondary-button{min-width:190px}}@media (width>=861px) and (width<=1100px){.how-to-list li{gap:16px;padding-right:18px}.how-to-list li+li{padding-left:18px}.guide-number{font-size:3.5rem}.how-to-list h3{font-size:1.05rem}.how-to-list p{font-size:.88rem}.time-plan-row{grid-template-columns:minmax(145px,.8fr) 110px minmax(0,2fr)}.time-plan-row>*{padding:22px 14px}.time-plan-row strong{white-space:nowrap;font-size:2.5rem}.time-plan-row p{gap:8px 10px;font-size:.92rem}.plan-phase:after{margin-left:8px}}@media (width<=860px){.app-frame,.app-frame--editing{min-height:100vh;display:block}.app-header{z-index:10;border-right:0;height:66px;padding:0 18px;position:sticky;top:0}.brand{font-size:1.6rem}.fullscreen-button{gap:0;padding-left:12px;font-size:0}.timer-canvas{min-height:calc(100vh - 66px)}.timer-content{justify-content:flex-start;padding:42px 22px 30px}.current-phase{margin-top:20px;font-size:clamp(2.15rem,10vw,4rem)}.countdown{letter-spacing:-.07em;margin-top:16px;font-size:clamp(5.3rem,24vw,10rem)}.next-phase{margin-top:20px;font-size:1.35rem}.timeline{margin-bottom:38px}.timer-actions{flex-direction:column;gap:12px}.primary-button,.secondary-button{width:100%;min-width:0;min-height:58px}.session-panel{border:0;border-top:1px solid var(--line)}.session-panel-inner{min-height:auto;padding:34px 18px 26px}.edit-button{margin-top:28px}.content-guide{--guide-gutter:clamp(20px, 5.5vw, 42px)}.guide-intro{grid-template-columns:1fr;gap:54px;min-height:0;padding-block:72px}.guide-intro h2{font-size:clamp(2.75rem,10.8vw,4.8rem)}.back-to-timer{justify-self:stretch}.guide-ad-wrap{padding-bottom:60px}.guide-section{padding-block:64px}.how-to-list{grid-template-columns:1fr}.how-to-list li,.how-to-list li+li{border-left:0;padding:28px 0}.how-to-list li+li{border-top:1px solid #7f8998}.time-plan-row{grid-template-columns:minmax(0,1fr) auto}.time-plan-row>*{padding:20px 12px}.time-plan-row strong{border:0;font-size:2.5rem}.time-plan-row p{grid-column:1/-1;padding-top:0}.tips-list{grid-template-columns:1fr}.tips-list li,.tips-list li:nth-child(2n){border-left:0;padding:28px 0}.trust-section{grid-template-columns:1fr;gap:46px}.site-footer{grid-template-columns:1fr auto;gap:30px;padding-block:36px}.site-footer nav{flex-wrap:wrap;grid-area:2/1/auto/-1;justify-content:flex-start;gap:20px 26px}}@media (width<=360px){.timeline-labels{font-size:.78rem}.timeline-labels span:not(:first-child):not(:last-child){transform:translate(-70%)}.how-to-list li{grid-template-columns:58px minmax(0,1fr);gap:14px}.guide-number{font-size:2.8rem}.time-plan-row p{gap:8px 10px;font-size:.92rem}.plan-phase:after{margin-left:8px}.site-footer{grid-template-columns:1fr}.site-footer small{grid-row:3}}@media (width<=860px) and (height<=500px) and (orientation:landscape){.app-header{height:56px}.timer-canvas{min-height:calc(100vh - 56px)}.timer-content{grid-template-columns:minmax(0,1fr) minmax(210px,28vw);grid-template-areas:"phase actions""count actions""next actions""timeline actions";align-content:center;column-gap:32px;padding:18px 28px;display:grid}.current-phase{grid-area:phase;font-size:clamp(1.8rem,5vw,2.7rem)}.countdown{grid-area:count;margin:0;font-size:clamp(6rem,16vw,9rem)}.next-phase{grid-area:next;margin:2px 0 16px;font-size:clamp(1rem,2.5vw,1.35rem)}.timeline{grid-area:timeline;margin:0}.timer-actions{grid-area:actions;align-self:center}.primary-button,.secondary-button{min-height:56px}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important;animation-duration:.01ms!important}}