:root {
  --bg: #F1F2FB;
  --text: #1A2B48;
  --muted: #5b6b7c;
  --primary: #3D49FF;
  --primary-soft: rgba(61,73,255, .15);
  --card: #ffffff;
  --soft-shadow: rgba(0,0,0,0.06);
  --border: #cfd8e6;
}

*{box-sizing:border-box;}

body {
  background: var(--bg);
  font-family: "Nunito", sans-serif;
  margin: 0; padding: 30px;
  color: var(--text);
  display: flex; flex-direction: column; align-items: center;
}

.page { width:100%; max-width:1200px; }

.header { text-align:center; margin-bottom:20px; }
.header h1{font-size:36px;font-weight:800;margin:0 0 10px;}
.header p{font-size:16px;color:var(--muted);margin:0;}

.mode-switch{
  display:flex;justify-content:center;
  background:var(--primary-soft);
  border-radius:14px;padding:6px;width:fit-content;margin:0 auto 25px;
}
.mode-btn{
  border:none;padding:12px 28px;font-size:16px;
  font-weight:700;border-radius:10px;background:transparent;
  cursor:pointer;transition:.2s;color:var(--text);
}
.mode-btn.active { background:var(--primary); color:#fff; }

.card{
  background:var(--card);padding:28px;border-radius:16px;
  box-shadow:0 8px 28px var(--soft-shadow);border:1px solid #edf1f7;
}

.tool-box{display:flex;gap:20px;flex-wrap:wrap;}
.input-wrap,.output-wrap{flex:1;min-width:48%;}

label{font-size:16px;font-weight:700;margin-bottom:10px;display:block;}

textarea{
  width:100%;height:350px;padding:16px;font-size:15px;
  border:1px solid var(--border);border-radius:12px;
  outline:none;resize:vertical;background:#fff;
}
textarea:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(61,73,255,.18);
}

.bottom-actions{
  margin-top:20px;display:flex;justify-content:center;gap:12px;flex-wrap:wrap;
}

.action-btn{
  background:var(--primary);color:#fff;border:none;
  padding:12px 22px;font-size:15px;font-weight:700;
  border-radius:10px;cursor:pointer;
}
.clear-btn{ background:#E14545!important; }

.paper{
  border:1px solid #d7dff3;
  width:100%;aspect-ratio: 2480/3508; /* A4 fixed */
  background:#fff;border-radius:12px;overflow:hidden;position:relative;
  box-shadow:0 0 10px rgba(0,0,0,.1);
}
.paper-inner{
  position:absolute; inset:60px;
  font-family:"Patrick Hand", cursive;
  font-size:22px; white-space:pre-wrap; line-height:32px;
}

/*** Paper Styles ***/
.paper-plain{background:#fff;}
.paper-ruled{
  background:
  linear-gradient(#fff 30px, #d0d9f7 31px) repeat-y;
  background-size:100% 31px;
}
.paper-grid{
  background:
  linear-gradient(#e2e8ff 1px, transparent 1px) 0 0 / 24px 24px,
  linear-gradient(90deg,#e2e8ff 1px,transparent 1px) 0 0 / 24px 24px,
  #fff;
}
.paper-love{
  background:
  url('https://i.imgur.com/CGRm8uJ.png') center/cover no-repeat,
  #fff;
}
.paper-gift{
  background:
  url('https://i.imgur.com/qj8b2La.png') center/cover no-repeat,
  #fff;
}

.copy-popup{
  position:fixed;top:18px;right:18px;
  background:#4CD964;color:#fff;padding:10px 18px;
  border-radius:8px;font-weight:700;font-size:14px;
  display:none;z-index:9999;
}

.site-footer{margin-top:40px;text-align:center;font-size:14px;color:var(--muted);}