/* ── Reset & base ───────────────────────────────────────── */
*{box-sizing:border-box}
body{margin:0;font-family:'Segoe UI',Arial,sans-serif;background:#eef6fb;color:#16344d;display:flex;flex-direction:column;min-height:100vh}
button,input,select{font:inherit}
button{background:#2e7dd7;color:#fff;border:0;border-radius:20px;padding:10px 18px;cursor:pointer;font-weight:600;transition:transform .1s,box-shadow .1s}
button:hover{transform:translateY(-1px);box-shadow:0 4px 12px rgba(46,125,215,.3)}
button:active{transform:translateY(0)}
input,select{width:100%;padding:10px 12px;border:2px solid #d4e6f5;border-radius:14px;background:#fff;transition:border-color .2s}
input:focus,select:focus{outline:none;border-color:#2e7dd7}

/* ── HEADER ─────────────────────────────────────────────── */
.site-header{background:#fff;box-shadow:0 2px 16px rgba(20,60,100,.09);position:sticky;top:0;z-index:100;padding:0 28px}
.header-inner{max-width:1280px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;height:72px;gap:16px}
.header-brand{display:flex;align-items:center;gap:14px;text-decoration:none}
.topbar-logo{height:52px;width:auto;display:block}
.header-title{line-height:1}
.header-title h1{margin:0;font-size:20px;font-weight:800;color:#16344d}
.header-title p{margin:3px 0 0;font-size:12px;color:#7a9ab5;font-weight:500}
.topnav{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.topnav a{text-decoration:none;color:#2e7dd7;padding:9px 18px;border-radius:20px;font-weight:700;font-size:14px;border:2px solid transparent;transition:all .18s}
.topnav a:hover{background:#e8f3fd;border-color:#b8d8f5}
.topnav a.active{background:#2e7dd7;color:#fff;border-color:#2e7dd7}
.topnav a.active:hover{background:#1a6cc4;border-color:#1a6cc4}
.lang-switch{background:#fff3e0 !important;color:#d4700a !important;border:2px solid #f5c97a !important;border-radius:20px;padding:9px 16px;font-size:13px;font-weight:700}
.lang-switch:hover{background:#ffe5b4 !important}

/* ── PAGE BODY ──────────────────────────────────────────── */
.page-body{flex:1;padding:20px 28px 0}

/* ── CARDS & SECTIONS ───────────────────────────────────── */
.card{background:#fff;border-radius:18px;padding:16px;box-shadow:0 2px 10px rgba(20,60,90,.08)}
.profile-bar,.stats-grid,.level-switch,.tabs,.about-page{max-width:1280px;margin:0 auto 18px}
.profile-bar{display:grid;grid-template-columns:1.2fr 1.2fr 1fr 1fr;gap:12px}
.field label{display:block;font-size:12px;color:#597794;margin-bottom:6px;font-weight:600}
.buttons-row{display:flex;flex-direction:column;justify-content:end;gap:8px}
.tiny{font-size:12px;color:#63809a}
.tiny.ok{color:#0b8b52}.tiny.warn{color:#b06a00}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.stat span{display:block;color:#62809b;font-size:13px;margin-bottom:6px}
.stat strong{font-size:30px}
.level-switch,.tabs{display:flex;gap:10px;flex-wrap:wrap}
.level-btn.active,.tab-btn.active{background:#114f97}
.tab-panel{display:none}.tab-panel.active{display:block}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;max-width:1280px;margin:0 auto 18px}
.letter-preview{display:flex;justify-content:space-between;align-items:center;gap:20px}
.big-letter{font-size:84px;font-weight:bold;color:#2e7dd7;line-height:1}
.small-letter{font-size:52px;color:#6a95c7}
.word-emoji-box{text-align:center}
.emoji{font-size:48px}.emoji.big{font-size:64px}
.word-title{font-size:32px;font-weight:bold;margin-top:8px}
.inline-buttons{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:10px}
.feedback{min-height:24px;font-weight:bold;color:#1d588b}
.feedback.ok{color:#0d8f52}.feedback.bad{color:#b83a3a}
.trace-guide,.quiz-big,.sentence-box{font-size:72px;font-weight:bold;color:#2e7dd7;background:#e8f2fb;border-radius:16px;padding:12px;text-align:center;margin-bottom:10px}
.sentence-box{font-size:34px}
.canvas-wrap{position:relative}
.canvas-wrap canvas{width:100%;max-width:100%;display:block;border-radius:16px;background:#f2f8fd;border:1px solid #d6e5f1}
.trace-overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:92px;font-weight:bold;color:rgba(46,125,215,.18);pointer-events:none}
.chips,.option-row,.color-row{display:flex;gap:10px;flex-wrap:wrap}
.chip,.option-btn,.memory-card,.number-btn{padding:12px 14px;border-radius:14px;background:#eef5fb;border:1px solid #cfe0ef;cursor:pointer;font-weight:bold}
.memory-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.memory-card{min-height:70px;display:flex;justify-content:center;align-items:center;font-size:26px}
.memory-card.closed{background:#2e7dd7;color:#2e7dd7}
.color-circle{width:58px;height:58px;border-radius:50%;border:3px solid #fff;box-shadow:0 1px 6px rgba(0,0,0,.1);cursor:pointer}
.stars-board{display:grid;grid-template-columns:repeat(10,1fr);gap:10px;margin-top:14px}
.star{font-size:28px;text-align:center;background:#f4f8fc;border-radius:12px;padding:8px}
.star.filled{background:#fff7d2}
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:1280px;margin:0 auto 24px}
.photo-card img{width:100%;height:520px;object-fit:cover;border-radius:14px}
.dedication{max-width:1280px;margin:0 auto 18px}
.dedication-text{font-size:26px;text-align:center;color:#1f4a6d}
.hidden{display:none}

/* ── FOOTER ─────────────────────────────────────────────── */
.site-footer{background:#fff;border-top:2px solid #ddeaf5;margin-top:32px;padding:22px 28px}
.footer-inner{max-width:1280px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-copy{font-size:13px;color:#7a9ab5;font-weight:600}
.footer-copy strong{color:#2e7dd7}
.footer-contact{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.footer-contact a{font-size:13px;color:#2e7dd7;text-decoration:none;font-weight:600;display:flex;align-items:center;gap:5px;padding:7px 14px;border-radius:14px;background:#eef6fb;border:1.5px solid #cfe0ef;transition:background .18s,border-color .18s}
.footer-contact a:hover{background:#d6ebfc;border-color:#9dcaf0}

/* ── RESPONSIVE ─────────────────────────────────────────── */
@media(max-width:900px){
  .profile-bar,.stats-grid,.grid-2,.gallery-grid{grid-template-columns:1fr}
  .header-inner{height:auto;padding:12px 0;flex-wrap:wrap}
  .header-title h1{font-size:16px}
  .page-body{padding:16px 14px 0}
  .site-header{padding:0 14px}
  .site-footer{padding:18px 14px}
  .topnav a{padding:7px 12px;font-size:13px}
  .word-title{font-size:24px}
  .trace-guide,.quiz-big{font-size:54px}
  .photo-card img{height:auto}
  .memory-grid{grid-template-columns:repeat(3,1fr)}
  .footer-inner{flex-direction:column;text-align:center}
  .footer-contact{justify-content:center}
}