/* ============================================================
   共通スタイル — 静かな文芸誌を思わせる、明るい編集調のUI
   ============================================================ */

:root{
  --bg:#f3f0e8;
  --bg-deep:#e7e2d6;
  --surface:#fbf9f3;
  --surface-2:#eee9dd;
  --line:rgba(34,42,43,.18);
  --line-soft:rgba(34,42,43,.10);
  --ink:#202829;
  --ink-2:#596261;
  --ink-3:#707875;
  --accent:#b74a36;
  --accent-ink:#9b3928;
  --accent-soft:rgba(183,74,54,.10);
  --toast-bg:#202829;
  --toast-text:#fff;
  --toast-border:rgba(255,255,255,.2);
  --toast-error-bg:#7f2f25;
  --toast-error-border:#b86759;
  --reader:720px;
  --col:760px;
  --page:960px;
  --r:2px;
  --serif:'Yu Mincho','YuMincho','Hiragino Mincho ProN','Noto Serif JP',serif;
  --sans:'Hiragino Kaku Gothic ProN','Hiragino Sans','Yu Gothic UI','Noto Sans JP',system-ui,sans-serif;
  --safe-b:env(safe-area-inset-bottom,0px);
}

*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
html,body{margin:0;padding:0}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  min-height:100dvh;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none;padding:0}
small{line-height:1.6}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;letter-spacing:.025em}

/* ---------- レイアウト ---------- */
.page{min-height:100dvh;background:var(--bg)}
.page-wide{--page:1120px}
.wrap{width:min(100%,calc(var(--page) + 48px));margin:0 auto;padding-left:24px;padding-right:24px}

/* ---------- ヘッダー ---------- */
.hd{
  position:sticky;top:0;z-index:60;
  background:rgba(243,240,232,.92);
  backdrop-filter:saturate(120%) blur(14px);
  border-bottom:1px solid var(--line);
}
.hd-in{height:70px;display:flex;align-items:center;gap:28px}
.logo{display:inline-flex;align-items:center;gap:12px;font-family:var(--serif);font-size:17px;letter-spacing:.08em;font-weight:600}
.logo::before{content:'';width:22px;height:22px;border:1px solid var(--ink);box-shadow:5px 5px 0 var(--accent);transform:translate(-2px,-2px)}
.hd-sp{flex:1}
.hd-lnk{font-size:13px;color:var(--ink-2);padding:24px 0 21px;position:relative;white-space:nowrap}
.hd-lnk:hover{color:var(--ink)}
.hd-lnk.on{color:var(--ink);font-weight:600}
.hd-lnk.on::after{content:'';position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--accent)}

/* ---------- 見出し ---------- */
.sec-t{
  font-family:var(--serif);font-size:16px;color:var(--ink);
  margin:42px 0 16px;padding-bottom:11px;border-bottom:1px solid var(--line);
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
}
.sec-t small{font-family:var(--sans);font-size:12px;color:var(--ink-3);font-weight:400}
.page-intro{padding:64px 0 30px;border-bottom:1px solid var(--line)}
.page-intro .eyebrow{font-size:12px;letter-spacing:.18em;color:var(--accent-ink);margin-bottom:12px}
.page-intro h1{font-size:clamp(28px,5vw,46px);line-height:1.35;margin:0 0 14px}
.page-intro p{max-width:620px;margin:0;color:var(--ink-2);font-size:14px}

/* ---------- カード / ボタン ---------- */
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:12px 24px;border-radius:var(--r);font-size:13.5px;font-weight:600;
  background:var(--surface);border:1px solid var(--line);color:var(--ink);
  transition:background .18s,border-color .18s,color .18s,transform .18s;
}
.btn:hover{background:#fff;border-color:rgba(34,42,43,.34);transform:translateY(-1px)}
.btn:active{transform:none}
.btn:disabled{opacity:.38;pointer-events:none}
.btn-pri{background:var(--ink);border-color:var(--ink);color:#fff}
.btn-pri:hover{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-lg{width:100%;padding:14px 18px;font-size:14px}
.btn-sm{min-height:36px;padding:7px 13px;font-size:12px}
.btn-ghost{background:transparent}
.btn-txt{padding:6px 2px;background:none;border:0;color:var(--ink-2);font-size:12.5px}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);border-bottom:1px solid var(--line);padding-bottom:3px}
.text-link:hover{color:var(--accent-ink);border-color:var(--accent)}

/* ---------- チップ ---------- */
.chip{
  display:inline-flex;align-items:center;gap:5px;padding:4px 9px;
  border:1px solid var(--line);color:var(--ink-2);font-size:12px;background:transparent;
}
.chip-a{border-color:rgba(183,74,54,.42);color:var(--accent-ink)}

/* ---------- フォーム ---------- */
.field{margin-bottom:24px}
.field label{display:block;font-size:13px;color:var(--ink);font-weight:600;margin-bottom:9px}
.field .hint{font-size:12px;color:var(--ink-3);margin-top:7px;line-height:1.7}
.inp,.tarea,select.inp{
  width:100%;padding:13px 14px;border-radius:var(--r);
  background:#fff;border:1px solid var(--line);outline:none;transition:border-color .18s,box-shadow .18s;
}
.inp:focus,.tarea:focus,select.inp:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.inp::placeholder,.tarea::placeholder{color:#a9aca5}
.tarea{resize:vertical;min-height:90px;line-height:1.75}
select.inp{appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='11' height='7'%3E%3Cpath d='M1 1l4.5 4.5L10 1' stroke='%23596261' stroke-width='1.4' fill='none'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:36px}
.pillrow{display:flex;gap:8px;flex-wrap:wrap}
.pill{
  padding:8px 14px;border-radius:99px;font-size:12.5px;
  background:var(--surface);border:1px solid var(--line);color:var(--ink-2);
  transition:border-color .18s,color .18s,background .18s;
}
.pill:hover{color:var(--ink);border-color:rgba(34,42,43,.34)}
.pill.on{border-color:var(--ink);color:#fff;background:var(--ink)}

/* ---------- 通知 / 読み込み ---------- */
#toast{
  position:fixed;left:50%;bottom:calc(22px + var(--safe-b));transform:translateX(-50%);
  z-index:9999;display:flex;flex-direction:column;gap:8px;align-items:center;
  pointer-events:none;width:calc(100% - 34px);max-width:420px;
}
.toast{
  max-width:100%;background:var(--toast-bg);border:1px solid var(--toast-border);color:var(--toast-text);
  padding:12px 17px;border-radius:4px;font-size:13px;font-weight:600;line-height:1.65;text-align:center;
  overflow-wrap:anywhere;box-shadow:0 12px 34px rgba(12,14,14,.38);animation:tin .28s ease;
}
.toast.err{background:var(--toast-error-bg);border-color:var(--toast-error-border);color:var(--toast-text)}
@keyframes tin{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.dots{display:inline-flex;gap:4px;align-items:center}
.dots i{width:4px;height:4px;border-radius:50%;background:currentColor;opacity:.35;animation:dot 1.3s infinite}
.dots i:nth-child(2){animation-delay:.16s}.dots i:nth-child(3){animation-delay:.32s}
@keyframes dot{0%,65%,100%{opacity:.28}32%{opacity:.9}}
.overlay{
  position:fixed;inset:0;z-index:200;display:grid;place-items:center;
  background:rgba(243,240,232,.96);text-align:center;padding:26px;
}
.overlay .ring{
  width:36px;height:36px;border-radius:50%;margin:0 auto 20px;
  border:2px solid var(--line);border-top-color:var(--accent);animation:spin 1.1s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.overlay h3{margin:0 0 8px;font-size:18px;font-weight:600}
.overlay p{color:var(--ink-3);font-size:12.5px;margin:0}

/* ---------- 情報ページ ---------- */
.content-section{display:grid;grid-template-columns:220px 1fr;gap:48px;padding:30px 0;border-bottom:1px solid var(--line-soft)}
.content-section h2{font-size:16px;margin:0}
.content-section p{max-width:680px;margin:0;color:var(--ink-2);white-space:pre-line;font-size:14px;line-height:2}
.page-action{text-align:center;margin:48px 0 10px}

/* ---------- フッター ---------- */
.ft{margin-top:80px;padding:34px 0 calc(38px + var(--safe-b));border-top:1px solid var(--line);color:var(--ink-3);font-size:12px}
.ft .foot-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:end}
.ft .foot-brand{font-family:var(--serif);color:var(--ink);font-size:16px;letter-spacing:.06em;margin-bottom:6px}
.ft .foot-note{max-width:480px;line-height:1.8}
.ft .foot-right{text-align:right}
.ft .nav{display:flex;justify-content:flex-end;gap:20px;margin-bottom:10px}
.ft a{color:var(--ink-2)}
.ft a:hover{color:var(--accent-ink)}

::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-thumb{background:rgba(34,42,43,.18);border-radius:8px}
::-webkit-scrollbar-track{background:transparent}

@media(max-width:720px){
  .wrap{padding-left:18px;padding-right:18px}
  .hd-in{height:60px;gap:18px}
  .logo{font-size:15px}.logo::before{width:18px;height:18px;box-shadow:4px 4px 0 var(--accent)}
  .hd-lnk{font-size:12px;padding:20px 0 17px}
  .hd-lnk-about{display:none}
  .page-intro{padding-top:44px}
  .content-section{grid-template-columns:1fr;gap:10px;padding:24px 0}
  .ft{margin-top:56px}
  .ft .foot-grid{grid-template-columns:1fr;gap:22px}
  .ft .foot-right{text-align:left}.ft .nav{justify-content:flex-start;flex-wrap:wrap}
}
@media(max-width:430px){
  .hd-in{gap:13px}
  .logo::before{display:none}
  .hd-lnk{font-size:12px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{animation-duration:.01ms !important;transition-duration:.01ms !important}
}

/* ============================================================
   モバイルアプリ型の共通シェル
   ============================================================ */
.wrap{padding-left:16px;padding-right:16px}
.hd{
  position:sticky;top:0;z-index:80;
  background:rgba(243,240,232,.94);
  border-bottom:1px solid var(--line-soft);
}
.hd-in{height:58px;gap:12px}
.logo{font-family:var(--serif);font-size:14px;letter-spacing:.055em;gap:9px;min-width:0}
.logo::before{display:block;width:8px;height:8px;border:0;border-radius:50%;box-shadow:none;background:var(--accent);transform:none}
.account-button,.login-button{
  display:inline-flex;align-items:center;justify-content:center;min-height:40px;
  border:1px solid var(--line);background:var(--surface);font-size:12px;font-weight:600;
}
.login-button{padding:7px 14px}
.account-button{gap:8px;padding:4px 10px 4px 5px;max-width:150px}
.account-button>span{display:grid;place-items:center;width:27px;height:27px;border-radius:50%;background:var(--ink);color:#fff;font-size:12px}
.account-button>b{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:12px}
.has-bottom-nav .page{padding-bottom:calc(76px + var(--safe-b))}
.bottom-nav{
  position:fixed;left:0;right:0;bottom:0;z-index:350;
  height:calc(66px + var(--safe-b));padding-bottom:var(--safe-b);
  background:rgba(251,249,243,.96);border-top:1px solid var(--line);
  box-shadow:0 -8px 24px rgba(32,40,41,.06);
  backdrop-filter:saturate(130%) blur(16px);
}
.bottom-nav-in{height:66px;max-width:680px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr)}
.bottom-nav a{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:3px;color:var(--ink-3);min-width:0;
}
.bottom-nav a::after{content:'';position:absolute;top:0;left:28%;right:28%;height:2px;background:transparent}
.bottom-nav a.on{color:var(--accent-ink)}
.bottom-nav a.on::after{background:var(--accent)}
.bottom-nav b{font-size:12px;line-height:1.2;white-space:nowrap}
.nav-icon{position:relative;display:block;width:22px;height:22px;color:currentColor}
.nav-home::before{content:'';position:absolute;left:5px;top:8px;width:12px;height:10px;border:1.7px solid currentColor;border-top:0}
.nav-home::after{content:'';position:absolute;left:5px;top:4px;width:10px;height:10px;border-left:1.7px solid currentColor;border-top:1.7px solid currentColor;transform:rotate(45deg)}
.nav-talk::before{content:'';position:absolute;inset:3px 2px 5px;border:1.7px solid currentColor;border-radius:7px}
.nav-talk::after{content:'';position:absolute;left:6px;bottom:2px;width:6px;height:6px;border-left:1.7px solid currentColor;transform:skewY(-38deg)}
.nav-create::before{content:'＋';position:absolute;inset:1px;display:grid;place-items:center;border:1.7px solid currentColor;border-radius:50%;font-size:18px;line-height:1}
.nav-user::before{content:'';position:absolute;left:8px;top:3px;width:7px;height:7px;border:1.7px solid currentColor;border-radius:50%}
.nav-user::after{content:'';position:absolute;left:4px;bottom:2px;width:14px;height:8px;border:1.7px solid currentColor;border-radius:9px 9px 3px 3px}
body.has-bottom-nav #toast{bottom:calc(80px + var(--safe-b))}
.ft{margin-top:54px;padding:28px 0 20px}.ft .foot-grid{display:block}.ft .foot-right{margin-top:10px;text-align:left}.ft .foot-note{font-size:12px}
.foot-legal{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}.foot-legal a{color:var(--ink-3);font-size:12px;text-decoration:underline}

/* ---------- 初回ログイン・表示名 ---------- */
body.welcome-modal-open{overflow:hidden}
.welcome-modal{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;padding:20px}
.welcome-modal-backdrop{position:absolute;inset:0;background:rgba(24,22,19,.76)}
.welcome-dialog{
  position:relative;width:min(100%,430px);padding:30px 24px 24px;
  border-top:3px solid var(--accent);background:var(--surface);box-shadow:0 24px 70px rgba(0,0,0,.28);
  animation:welcome-in .28s ease-out both;
}
.welcome-modal.is-closing{pointer-events:none;animation:welcome-out .22s ease-in both}
.welcome-kicker{display:block;color:var(--accent-ink);font-size:12px;font-weight:700;letter-spacing:.18em}
.welcome-dialog h2{margin:7px 0 8px;font-size:24px}
.welcome-dialog>p{margin:0 0 22px;color:var(--ink-2);font-size:14px;line-height:1.8}
.welcome-dialog form>label{display:block;margin-bottom:7px;font-size:13px;font-weight:700}
.account-name-input{position:relative}
.account-name-input input{
  width:100%;min-height:50px;padding:11px 64px 11px 13px;border:1px solid var(--line);background:#fff;
  color:var(--ink);font-size:16px;
}
.account-name-input input:focus{outline:2px solid rgba(184,86,63,.2);border-color:var(--accent)}
.account-name-input>span{position:absolute;right:12px;top:50%;transform:translateY(-50%);color:var(--ink-3);font-size:12px}
.account-name-input>span b{font-weight:400}
.welcome-name-note{margin:8px 0 0;color:var(--ink-3);font-size:12px;line-height:1.65}
.account-name-status{min-height:20px;margin:8px 0 4px;color:#8c3024;font-size:12px;line-height:1.6}
.welcome-dialog .btn{width:100%}
@keyframes welcome-in{from{opacity:0;transform:translateY(14px) scale(.985)}to{opacity:1;transform:none}}
@keyframes welcome-out{to{opacity:0}}

@media(min-width:760px){
  .wrap{padding-left:28px;padding-right:28px}
  .hd-in{height:66px}.logo{font-size:16px}
  .account-button{max-width:190px}
  .bottom-nav-in{max-width:760px}
  .bottom-nav b{font-size:12px}
}
@media(max-width:759px){
  input:not([type="checkbox"]):not([type="radio"]),
  textarea,
  select{font-size:16px !important}
}