/*
Theme Name: gpt-theme
Theme Theme URI: https://language-of-flowers.net/
Description: メガミリオンズ総額100億円
Author:  bibiru
Version: 1.0.1
*/
html {    scroll-behavior: smooth;}
body{margin: 0; padding: 0px; background-color:#080303}
 :root{
    --green:#4CAF50; --green-d:#45a049; --card:#fff; --text:#333; --muted:#666; --bg1:#d0e8ff;
  }
  body{font-family:'Noto Sans JP',sans-serif;background:linear-gradient(180deg,var(--bg1) 0%,#fff 100%);margin:0;color:var(--text)}
  #container{max-width:600px;margin:0 auto;padding:20px}
  .top-main,.top-main2,.card{background:var(--card);border-radius:12px;box-shadow:0 4px 12px rgba(0,0,0,.1);margin-bottom:20px;padding:10px}
  .top-main img{width:100%;height:auto;display:block;border-radius:12px}
  .cta-btn{display:block;width:90%;text-align:center;padding:15px;background-color:var(--green);color:#fff;font-size:1.1rem;font-weight:700;border-radius:10px;text-decoration:none;transition:background .3s;margin:0 auto;}
  .cta-btn:hover{background-color:var(--green-d)}
  .cta-btn[aria-disabled="true"]{background:#bbb;pointer-events:none}
  .spacer{height:16px}
  /* --- Stepper --- */
  .stepper{display:flex;gap:8px;justify-content:center;margin:10px 0 16px}
  .step{flex:1;display:flex;align-items:center;gap:8px;background:#f6fafc;border:1px solid #e3eef7;border-radius:10px;padding:8px;min-height:44px}
  .step .num{width:28px;height:28px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:#e6f3ff;color:#2a6ad8;font-weight:700}
  .step.done{border-color:#c8ebd1;background:#f3fff6}
  .step.done .num{background:#def7e4;color:#1f7a34}
  .step.active{border-color:#b9d9ff;box-shadow:0 0 0 2px #e7f1ff inset}
  /* Accordion */
  .acc{border:1px solid #e7eef5;border-radius:10px;overflow:hidden}
  .acc dt{background:#f7fbff;padding:12px 14px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;font-weight:700}
  .acc dd{margin:0;padding:12px 14px;display:none;background:#fff}
  .checkline{display:flex;align-items:flex-start;gap:10px;margin:10px 0}
  .checkline input{margin-top:3px}
  /* Quiz */
  .quiz-q{padding:12px;border:1px solid #eef2f7;border-radius:10px;margin:10px 0;background:#fbfdff}
  .quiz-q h4{margin:0 0 8px 0;font-size:1rem}
  .quiz-q label{display:block;padding:8px;border-radius:8px;border:1px solid transparent}
  .quiz-q input{margin-right:6px}
  .quiz-q .wrong{border-color:#ffd1d1;background:#fff6f6}
  .quiz-q .hint{font-size:.9rem;color:#c0392b;margin-top:6px;display:none}
  /* Footer / misc */
  #page-top{text-align:center;margin:40px 0}
  #page-top a{color:var(--green);text-decoration:none;font-weight:700}
  #footer{text-align:center;font-size:.9rem;padding:20px;color:var(--muted)}
  .note{font-size:.9rem;color:#666}