/* Phone layouts are kept separate so the desktop workspace stays familiar. */
.mobile-brand,.mobile-copy{display:none}

@media(max-width:800px){
  :root{
    --sidebar:0px;
    --nav-height:calc(68px + env(safe-area-inset-bottom,0px));
    --keyboard-inset:0px;
    -webkit-text-size-adjust:100%;
  }
  body{line-height:1.5}
  html{scroll-padding-block:110px}
  .sidebar{display:contents}
  .sidebar>.brand,.sidebar-label,.sidebar-course,.sidebar-bottom{display:none}
  .workspace{margin:0;padding-bottom:var(--nav-height)}
  .topbar{
    position:sticky;top:0;z-index:25;
    height:calc(64px + env(safe-area-inset-top,0px));
    padding:env(safe-area-inset-top,0px) max(16px,env(safe-area-inset-right,0px)) 0 max(16px,env(safe-area-inset-left,0px));
    background:#faf9f4f5;backdrop-filter:blur(14px);
  }
  .topbar>div:first-of-type,.topbar .date-label{display:none}
  .mobile-brand{display:flex;align-items:center;gap:9px;min-height:44px;font-size:23px;font-weight:650;letter-spacing:-.8px}
  .mobile-brand>span{display:grid;place-items:center;width:33px;height:36px;background:var(--accent);border-radius:9px;color:#fffaf0;font-family:"Hiragino Mincho ProN",serif;font-size:26px;font-weight:400}
  .topbar-right{gap:8px}
  .topbar .icon-button{width:44px;height:44px;padding:10px}
  .topbar .icon-button .icon{width:22px;height:22px}
  .avatar{width:30px;height:30px;font-size:15px}
  .navigation{
    position:fixed;inset:auto 0 0;z-index:40;height:var(--nav-height);
    display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:4px;
    padding:5px max(10px,env(safe-area-inset-right,0px)) calc(5px + env(safe-area-inset-bottom,0px)) max(10px,env(safe-area-inset-left,0px));
    background:#faf9f4f5;backdrop-filter:blur(16px);border-top:1px solid var(--line);box-shadow:0 -4px 20px #293a2609;
  }
  .navigation a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;padding:5px 2px;font-size:11px;line-height:1.3;min-height:48px;border-radius:12px;color:#626c5b}
  .navigation a.active{background:#e9eddf;color:#415b37;box-shadow:none}
  .navigation .icon,.navigation a.active .icon{width:23px;height:23px;color:inherit}
  .nav-count{display:none}
  main{padding:24px 16px 20px;min-height:calc(100svh - 160px);max-width:640px}
  .page-footer{max-width:640px;padding:16px 16px 22px;font-size:11px}
  .page-footer>span:last-child{display:none}
  .page-heading{display:flex;align-items:start;gap:14px;margin-bottom:22px}
  .page-heading h1{font-size:26px;line-height:1.35;letter-spacing:-.8px;overflow-wrap:anywhere}
  .page-heading p{font-size:14px;line-height:1.7;max-width:none;margin-top:9px}
  .page-heading .eyebrow,.section-heading .eyebrow{font-size:10px;letter-spacing:1.1px;line-height:1.6}
  .page-heading>.pill{display:none}
  .page-heading>.button{font-size:13px;padding:11px 14px;min-height:46px}
  .button{font-size:15px;min-height:52px;padding:14px 18px;border-radius:12px;line-height:1.4}
  .button:hover:not(:disabled){transform:none}
  .icon-button{width:44px;height:44px;padding:10px}
  .text-link{font-size:13px;min-height:44px;padding:10px 0}
  .pill{font-size:11px;padding:5px 9px}
  .eyebrow,.tiny-label{font-size:10px;letter-spacing:1px}
  .small{font-size:12px}
  .panel{border-radius:18px;padding:20px}
  .section-heading{margin:26px 0 15px;gap:12px}
  .section-heading h2{font-size:22px;line-height:1.35}

  /* The daily action is visible without a long introduction. */
  .desktop-copy{display:none}
  .mobile-copy{display:inline}
  .daily-hero{display:block;min-height:0;padding:22px 20px;border-radius:20px;position:relative}
  .hero-copy{padding:0}
  .hero-copy>.eyebrow{max-width:calc(100% - 96px);font-size:9px;letter-spacing:.7px;margin-bottom:10px;line-height:1.5}
  .hero-copy h2{font-size:29px;line-height:1.2;max-width:calc(100% - 92px);letter-spacing:-.8px}
  .hero-copy p{font-size:13px;line-height:1.65;max-width:none;margin:18px 0}
  .hero-copy p br{display:none}
  .hero-goal{position:absolute;right:16px;top:28px;width:90px;bottom:auto;padding:0;background:none;overflow:visible;pointer-events:none}
  .goal-ring{width:90px;height:90px}
  .goal-ring strong{font-size:27px;letter-spacing:-1px}
  .goal-ring strong span{font-size:13px}
  .goal-caption{font-size:9px;margin-top:0;line-height:1.4}
  .goal-bottom,.sun-line{display:none}
  .hero-actions{display:block}
  .hero-actions .button{width:100%;font-size:15px;min-height:54px;justify-content:center;gap:12px}
  .hero-actions>.small{display:none}
  .stats-grid{gap:8px;margin-top:12px}
  .stat-card{display:block;padding:16px 10px;border-radius:14px;min-height:92px}
  .stat-icon,.stat-detail{display:none}
  .stat-label{font-size:11px;line-height:1.45;margin-bottom:9px;color:#66715f}
  .stat-card strong{font-size:27px;display:flex;gap:4px;flex-wrap:wrap;line-height:1.15}
  .stat-card strong small{font-size:11px;color:#717b67}
  .deck-grid{grid-template-columns:1fr;gap:12px}
  .deck-card{display:grid;grid-template-columns:minmax(0,1fr) 48px;grid-template-rows:auto auto auto auto 4px;gap:7px 12px;min-height:0;padding:20px;border-radius:18px;position:relative}
  .deck-card:hover{transform:none}
  .deck-top{grid-area:1/2;display:flex;justify-content:end;margin:0}
  .deck-number,.deck-card>p{display:none}
  .deck-card .pill{font-size:10px;padding:4px 7px}
  .deck-japanese,.green .deck-japanese{grid-area:1/1;min-height:0;font-size:17px;letter-spacing:.6px;margin:0;align-self:center}
  .deck-card h3{grid-area:2/1;font-size:21px;margin:0;line-height:1.4}
  .deck-meta{grid-area:3/1;font-size:12px;margin:0;gap:14px;line-height:1.6}
  .deck-bottom{display:contents}
  .deck-bottom>span{grid-area:4/1;font-size:11px;margin-top:1px}
  .deck-card>.progress-track{grid-area:5/1/6/3;margin-top:2px}
  .circle-button{grid-area:2/2/5/3;width:46px;height:46px;align-self:center;justify-self:end;border-radius:50%;position:static}
  .circle-button .icon{width:20px;height:20px}
  .circle-button::after{content:"";position:absolute;inset:0;border-radius:18px}
  .deck-card:has(.circle-button:focus-visible){outline:3px solid #b86f50;outline-offset:3px}
  .note-banner{margin-top:24px;padding:19px 4px;gap:16px}
  .note-banner strong{font-size:14px;line-height:1.6;display:block}
  .note-banner p{font-size:12px;line-height:1.8;margin-top:6px}
  .note-stamp{display:none}
  .note-japanese{font-size:22px}

  /* Setup remains scrollable while its primary action stays within thumb reach. */
  body[data-view="practice"][data-phase="setup"] main{padding-bottom:108px}
  .practice-layout{grid-template-columns:1fr;gap:0}
  .practice-side{display:none}
  .practice-setup{padding:20px 16px}
  .step-label{font-size:11px;letter-spacing:1px;margin-bottom:15px}
  .mode-options{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-bottom:28px}
  .mode-option{padding:17px 13px;border-radius:13px}
  .mode-icon{width:36px;height:36px;margin-bottom:12px}
  .mode-option strong{font-size:15px;line-height:1.5;margin-bottom:7px}
  .mode-option>span:last-child{font-size:12px;line-height:1.65;display:block;color:#66715e}
  .mode-option br{display:none}
  .topic-options{gap:11px;margin-bottom:28px}
  .topic-option{padding:15px 12px;min-height:74px;gap:12px;border-radius:12px}
  .topic-option strong{font-size:15px;line-height:1.4}
  .topic-option small{font-size:12px;line-height:1.5;margin-top:3px}
  .topic-option>.small{font-size:11px}
  .topic-check{width:22px;height:22px;flex-shrink:0}
  .topic-check .icon{width:16px;height:16px}
  .setup-bottom{display:flex;flex-direction:column;gap:22px;margin-bottom:0}
  .setup-bottom>div{width:100%}
  .field-label{font-size:14px;margin-bottom:10px}
  .setup-bottom .chip-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
  .chip{font-size:13px;min-height:44px;padding:10px 14px;border-radius:10px}
  .setup-bottom .chip{min-height:48px;font-size:16px}
  .setup-bottom select{width:100%;font-size:16px;min-height:50px;padding:12px}
  .setup-hint{font-size:12px;margin-top:0;line-height:1.8}
  .setup-launch{position:fixed;inset:auto 0 var(--nav-height);padding:12px 16px;background:#f6f5f0f5;backdrop-filter:blur(12px);border-top:1px solid var(--line);z-index:30}
  .setup-launch>.button{max-width:608px;display:flex;margin:auto}

  /* A focused practice view gives the card and controls the whole screen. */
  body.focus-mode .topbar,body.focus-mode .navigation,body.focus-mode .page-footer{display:none}
  body.focus-mode .workspace{padding-bottom:0}
  body.focus-mode main{padding:0 16px 205px;min-height:100svh}
  body[data-phase="cards"]:not(:has(.revealed)) main{padding-bottom:110px}
  body[data-phase="exercises"] main{padding-bottom:115px}
  .study-container{padding:0;max-width:608px}
  .study-header{position:sticky;top:0;padding:calc(10px + env(safe-area-inset-top,0px)) 0 14px;background:#f6f5f0f5;backdrop-filter:blur(14px);z-index:20}
  .session-top{margin-bottom:12px;gap:12px}
  .session-top .text-link{font-size:13px;min-height:44px;padding:9px 0;gap:8px}
  .session-top .pill{font-size:11px;padding:6px 9px;white-space:normal;text-align:right;line-height:1.4}
  .session-progress{margin-bottom:9px;font-size:11px;letter-spacing:1px}
  .session-progress>span:last-child{font-size:14px}
  .session-track{margin-bottom:0;height:5px}
  .flashcard{padding:18px 18px 26px;border-radius:20px;min-height:clamp(290px,49svh,420px);box-shadow:0 4px 0 #e9e9dd70}
  .flashcard-meta{margin-bottom:22px}
  .flashcard-meta .tiny-label{font-size:10px;padding:6px 8px;letter-spacing:.6px}
  .audio-button{width:46px;height:46px;background:#f2f4eb;border-radius:50%}
  .audio-button .icon{width:22px;height:22px}
  .card-question{font-size:14px;margin-bottom:20px}
  .card-front{font-size:clamp(26px,7.8vw,42px);line-height:1.75;letter-spacing:.5px;line-break:strict;overflow-wrap:anywhere}
  .card-front.russian{font-size:26px;line-height:1.45}
  .card-reading{font-size:16px;margin-top:10px}
  .card-think{font-size:13px;margin-top:28px;color:#748065}
  .answer-divider{margin:22px auto 18px}
  .card-answer h2{font-size:22px;line-height:1.5}
  .card-answer h2[lang="ja"]{font-size:29px;overflow-wrap:anywhere}
  .word-note{font-size:14px;line-height:1.8;margin-top:14px;color:#64715b}
  .example-box{padding:14px;margin-top:17px}
  .example-box>span{font-size:17px;line-height:1.8;overflow-wrap:anywhere}
  .example-box small{font-size:12px;line-height:1.7;margin-top:7px;color:#67765a}
  .study-controls{position:fixed;inset:auto 0 0;z-index:30;padding:12px max(16px,env(safe-area-inset-right,0px)) calc(12px + env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px));border-top:1px solid var(--line);background:#f6f5f0f7;backdrop-filter:blur(16px)}
  .rating-caption{font-size:12px;margin:0 0 10px;color:#5e6b54;text-align:center}
  .rating-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;max-width:608px;margin:auto}
  .rating-button{display:flex;align-items:center;justify-content:center;gap:6px;flex-direction:column;padding:12px 8px;border-radius:12px;min-height:63px}
  .rating-button strong{font-size:16px;line-height:1.25}
  .rating-button small{font-size:11px;line-height:1.3;margin:0;color:#676e56}
  .rating-button .keycap,.keyboard-hint,.study-footnote{display:none}
  .reveal-button{min-width:0;width:100%;max-width:608px;justify-content:center;margin:0 auto;min-height:55px}
  .exercise-card{padding:25px 20px;border-radius:20px}
  .exercise-card>.eyebrow{font-size:10px;line-height:1.6;margin-bottom:17px}
  .exercise-prompt{font-size:23px;line-height:1.65;letter-spacing:-.3px}
  .exercise-instruction{font-size:14px;line-height:1.7;margin:15px 0 22px}
  .japanese-input{font-size:22px;padding:17px 14px;border-radius:12px;min-height:66px;scroll-margin-block:110px 130px}
  .input-hint{font-size:12px;line-height:1.6;margin-top:10px}
  .answer-options{gap:12px}
  .answer-option{font-size:16px;padding:16px 13px;gap:12px;min-height:62px;border-radius:12px;line-height:1.7}
  .option-number{width:28px;height:28px;font-size:12px;flex-shrink:0}
  .exercise-actions,.exercise-next{position:fixed;inset:auto 0 var(--keyboard-inset);padding:12px max(16px,env(safe-area-inset-right,0px)) calc(12px + env(safe-area-inset-bottom,0px)) max(16px,env(safe-area-inset-left,0px));background:#f6f5f0f7;backdrop-filter:blur(16px);border-top:1px solid var(--line);z-index:30;display:flex;gap:14px;justify-content:center;align-items:center;margin:0}
  .exercise-actions>.text-link{font-size:13px;min-height:48px;max-width:150px;justify-content:center;text-align:center;padding:8px;line-height:1.4;flex:1}
  .exercise-actions>.button{flex:1;max-width:300px;font-size:15px;min-height:52px}
  .exercise-actions>span:empty{display:none}
  .exercise-actions:has(>span:empty)>.button{max-width:608px}
  .exercise-next .next-answer{margin:0;max-width:608px;min-height:54px}
  .hint-box{font-size:14px;line-height:1.8;margin-top:20px;padding:15px}
  .answer-feedback{padding:18px;margin-top:23px;border-radius:14px}
  .feedback-title{font-size:16px;line-height:1.5;gap:10px}
  .feedback-title .icon{width:21px;height:21px}
  .answer-feedback>p,.answer-feedback .expected-answer{font-size:14px;line-height:1.85;margin-top:11px}
  .expected-answer strong{font-size:21px;overflow-wrap:anywhere}

  /* Search and word details stay comfortable at a normal phone reading distance. */
  body[data-view="vocabulary"] .page-heading{display:block}
  body[data-view="vocabulary"] .page-heading>.button{margin-top:15px;width:100%;font-size:14px}
  body[data-view="vocabulary"] .page-heading>.button .icon{display:block}
  .vocabulary-panel{padding:16px 14px;border-radius:18px}
  .search-box{padding:0 13px;min-height:54px;border-radius:12px;gap:10px}
  .search-box input{font-size:16px;padding:14px 0;line-height:1.5}
  .search-box .icon{width:21px;height:21px}
  .vocabulary-filters{margin:16px 0 22px;display:block}
  .vocabulary-filters .chip-row{display:flex;flex-wrap:nowrap;gap:7px;overflow-x:auto;padding:4px 3px 10px;margin-inline:-3px;scrollbar-width:thin;-webkit-overflow-scrolling:touch}
  .vocabulary-filters .chip{flex-shrink:0;font-size:12px;padding:10px 12px;min-height:44px}
  .vocabulary-filters select{width:100%;font-size:16px;min-height:48px;padding:12px;margin-top:5px}
  .list-count{font-size:13px;margin-bottom:10px}
  .list-count>span{display:none}
  .word-row-main{gap:6px;min-height:104px;align-items:start}
  .word-expand{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:5px 8px;padding:18px 0;min-height:100px}
  .word-japanese{grid-area:1/1;font-size:21px;line-height:1.65;min-width:0;overflow-wrap:anywhere}
  .word-japanese small{font-size:14px;line-height:1.6}
  .word-meaning{grid-area:2/1/3/3;font-size:14px;line-height:1.6}
  .word-meaning small{font-size:11px;line-height:1.6;margin-top:3px}
  .word-status{grid-area:1/2;font-size:10px;padding:4px 6px;align-self:center;justify-self:end}
  .word-row-main>.icon-button{width:44px;height:44px;padding:11px;margin-top:17px;flex-shrink:0}
  .word-row-main>.icon-button .icon{width:21px;height:21px}
  .word-details{padding:0 0 20px}
  .word-details>p{font-size:14px;line-height:1.8}
  .word-example{font-size:18px;line-height:1.8;overflow-wrap:anywhere}
  .word-details .small{font-size:12px;line-height:1.8}
  .empty-state{padding:28px 10px}
  .empty-state h3{font-size:17px;line-height:1.5}
  .empty-state p{font-size:14px;line-height:1.8}

  .progress-metrics{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
  .metric{padding:16px 10px;border-radius:13px}
  .metric>span{font-size:11px;line-height:1.6;color:#64705b;display:block}
  .metric strong{font-size:28px;margin:12px 0 8px;overflow-wrap:anywhere}
  .metric small{font-size:10px;line-height:1.7;display:block}
  .activity-panel{padding:22px 16px}
  .activity-panel h2{font-size:20px;line-height:1.4}
  .activity-panel .section-heading{align-items:start}
  .activity-panel .small{font-size:12px;line-height:1.7}
  .activity-legend{display:none}
  .activity-column,.activity-count{font-size:10px}
  .activity-chart{gap:5px}
  .chart-caption{font-size:12px}
  .progress-columns{grid-template-columns:1fr;gap:16px;margin-top:16px}
  .progress-columns .panel{padding:22px 18px}
  .section-heading.compact{flex-wrap:wrap;gap:6px}
  .section-heading.compact h2{font-size:19px;line-height:1.4}
  .mistake-list>div{font-size:14px;line-height:1.8;gap:12px}
  .mistake-list small{font-size:12px}
  .difficult-list>div>span:first-child{font-size:21px;overflow-wrap:anywhere}
  .difficult-list small{font-size:13px;line-height:1.7}
  .difficult-list .pill{font-size:11px}
  .backup-panel{display:block;margin-top:16px;padding:22px 18px}
  .backup-panel>div:first-child{align-items:start;gap:12px}
  .backup-panel strong{font-size:16px;line-height:1.5}
  .backup-panel p{font-size:13px;line-height:1.8;margin-top:8px}
  .backup-actions{display:flex;flex-direction:column;gap:10px;margin-top:18px}
  .backup-actions .button{min-height:48px;font-size:14px;flex:auto}
  .history-note{font-size:12px;line-height:1.8;margin:16px 3px}
  .summary-container{margin:18px auto 20px;text-align:center}
  .summary-flower{width:115px;height:115px;font-size:53px;margin-bottom:23px}
  .summary-flower span{font-size:10px}
  .summary-container h1{font-size:29px;line-height:1.4}
  .summary-container>p{font-size:14px;line-height:1.8}
  .summary-stats{padding:22px 8px;margin-top:25px}
  .summary-stats strong{font-size:29px}
  .summary-stats span{font-size:11px;line-height:1.7;padding-inline:5px}
  .summary-note{font-size:14px;line-height:1.8}
  .summary-actions{flex-direction:column;gap:12px}
  .summary-actions .button{font-size:15px;width:100%}

  /* Inputs stay at 16px or larger, so iOS does not zoom when editing. */
  dialog{width:calc(100% - 20px);max-width:480px;max-height:calc(100dvh - 24px);padding:25px 20px;border-radius:22px;overscroll-behavior:contain;scroll-padding-block:20px}
  .dialog-heading{margin-bottom:24px}
  .dialog-heading h2{font-size:24px;line-height:1.4}
  .dialog-heading .eyebrow{font-size:10px}
  dialog .icon-button{width:44px;height:44px;padding:10px;flex-shrink:0}
  dialog .field-label{font-size:14px;margin-top:22px}
  dialog input:not([type="checkbox"]),dialog select{font-size:16px;min-height:50px;padding:12px;scroll-margin-block:24px 90px}
  .input-unit input{max-width:100px}
  .input-unit span{font-size:14px}
  .field-help{font-size:12px;line-height:1.8;color:#69755d}
  .switch-row{min-height:76px;gap:15px}
  .switch-row strong{font-size:15px}
  .switch-row small{font-size:12px;line-height:1.7;color:#69755d}
  .switch-row input{width:46px;height:28px}
  .switch-row input::before{width:22px;height:22px;top:3px;left:3px}
  .switch-row input:checked::before{transform:translateX(18px)}
  .form-error{font-size:14px;line-height:1.7}
  .toast{left:50%;bottom:calc(var(--nav-height) + 12px);font-size:13px;padding:12px 16px;max-width:calc(100% - 24px);border-radius:13px}
  body.focus-mode .toast{bottom:calc(195px + env(safe-area-inset-bottom,0px))}
  body[data-phase="exercises"] .toast{bottom:calc(var(--keyboard-inset) + 95px)}
  body.keyboard-open .navigation{display:none}
  body.keyboard-open .exercise-actions{padding-bottom:10px}
  .loading-state,.connection-error{padding:65px 12px}
  .loading-state p,.connection-error p{font-size:14px}
}

@media(max-width:360px){
  main{padding-inline:12px}
  .page-heading h1{font-size:24px}
  .hero-copy h2{font-size:26px}
  .daily-hero{padding:20px 16px}
  .hero-goal{right:12px;top:28px;width:82px}
  .goal-ring{width:82px;height:82px}
  .goal-caption{font-size:8px}
  .stat-label{font-size:10px}
  .stat-card strong small{font-size:10px}
  .practice-setup{padding:18px 13px}
  .mode-option{padding:15px 11px}
  .mode-option strong{font-size:14px}
  .mode-option>span:last-child{font-size:11px}
  .topic-option{padding-inline:10px;gap:9px}
  .topic-option strong{font-size:14px}
  .topic-option small{font-size:11px}
  .topic-option>.small{font-size:10px}
  .exercise-card{padding:23px 16px}
  .exercise-prompt{font-size:21px}
  .session-top .text-link{font-size:12px;gap:6px}
  .session-top .pill{font-size:10px;max-width:110px}
}

@media(max-width:800px) and (max-height:500px){
  .rating-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:7px}
  .rating-button{min-height:56px;padding:9px 5px}
  .rating-button strong{font-size:14px}
  .rating-button small{font-size:10px}
  body.focus-mode main{padding-bottom:130px}
  .flashcard{min-height:250px}
  .study-header{padding-top:5px}
  .session-top{margin-bottom:6px}
}