:root{
  --bg1:#05191d;
  --bg2:#04141a;

  --card: rgba(255,255,255,0.06);
  --card2: rgba(255,255,255,0.08);
  --stroke: rgba(255,255,255,0.10);

  --text: rgba(255,255,255,0.94);
  --muted: rgba(255,255,255,0.65);
  --muted2: rgba(255,255,255,0.45);

  --accent: #2dd4bf; 
  --accent2:#38bdf8; 

  --shadow: 0 18px 60px rgba(0,0,0,0.45);
  --radius: 18px;
}


*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
  background:
    radial-gradient(1200px 900px at 20% 10%, rgba(45,212,191,0.22), transparent 55%),
    radial-gradient(900px 700px at 80% 25%, rgba(56,189,248,0.18), transparent 60%),
    linear-gradient(180deg, var(--bg1), var(--bg2));
  overflow-x:hidden;
}

.bg{
  position:fixed;
  inset:-20%;
  pointer-events:none;
  background:
    radial-gradient(circle at 30% 30%, rgba(45,212,191,0.20), transparent 40%),
    radial-gradient(circle at 70% 35%, rgba(56,189,248,0.18), transparent 45%),
    radial-gradient(circle at 50% 80%, rgba(255,255,255,0.05), transparent 40%);
  filter: blur(28px);
  animation: float 14s ease-in-out infinite;
  z-index:-1;
}

@keyframes float{
  0%,100%{ transform: translate3d(0,0,0) scale(1); }
  50%{ transform: translate3d(2%, -1%, 0) scale(1.02); }
}

.topbar{
  position:sticky;
  top:0;
  z-index:10;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:16px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  background: rgba(10,12,16,0.55);
  backdrop-filter: blur(14px);
}

.brand{
  display:flex; align-items:center; gap:10px;
  font-weight:650;
  letter-spacing:0.2px;
}
.dot{
  width:10px;
  height:10px;
  border-radius:999px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  box-shadow: 0 0 0 6px rgba(45,212,191,0.15);
  animation: pulse 2.6s ease-in-out infinite;
}

@keyframes pulse{
  0%,100%{ box-shadow: 0 0 0 6px rgba(124,92,255,0.10); }
  50%{ box-shadow: 0 0 0 10px rgba(34,211,238,0.09); }
}

.actions{ display:flex; gap:10px; align-items:center; }

.btn{
  border: 1px solid var(--stroke);
  background: var(--card);
  color: var(--text);
  padding:10px 14px;
  border-radius: 999px;
  cursor:pointer;
  transition: transform .15s ease, background .15s ease, border-color .15s ease, box-shadow .15s ease, opacity .15s ease;
  user-select:none;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
}
.btn:hover{ transform: translateY(-1px); background: var(--card2); }
.btn:active{ transform: translateY(0px) scale(0.98); }
.btn:disabled{ opacity:0.45; cursor:not-allowed; transform:none; }

.btn.primary{
  border-color: rgba(45,212,191,0.45);
  background: linear-gradient(
    135deg,
    rgba(45,212,191,0.55),
    rgba(56,189,248,0.35)
  );
  box-shadow: 0 12px 40px rgba(45,212,191,0.25);
}

.btn.primary:hover{
  border-color: rgba(56,189,248,0.65);
  box-shadow: 0 14px 50px rgba(56,189,248,0.30);
}


.btn.ghost{ background: rgba(255,255,255,0.03); }
.btn.tiny{ padding:8px 12px; font-size: 14px; }

.btn input[type="file"]{ display:none; }

.container{
  width:min(980px, 92vw);
  margin: 22px auto 60px;
  display:flex;
  flex-direction:column;
  gap:16px;
}

.card{
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.05);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow:hidden;
}

.intro{
  display:flex;
  gap:18px;
  padding:18px;
  outline:none;
  position:relative;
}
.intro::after{
  content:"";
  position:absolute; inset:0;
  border-radius: var(--radius);
  pointer-events:none;
  opacity:0;
  transition: opacity .18s ease;
  background: radial-gradient(600px 180px at 30% 0%, rgba(124,92,255,0.14), transparent 60%);
}
.intro:hover::after{ opacity:1; }

.icon{
  width:72px; height:72px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(124,92,255,0.22), rgba(34,211,238,0.12));
  border: 1px solid rgba(255,255,255,0.10);
  display:grid; place-items:center;
  flex:0 0 auto;
  transform: translateZ(0);
}
.paper{
  width:30px; height:38px;
  border-radius: 10px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.14);
  position:relative;
}
.paper::before{
  content:"";
  position:absolute;
  left:6px; right:6px; top:10px;
  height:2px; border-radius:999px;
  background: rgba(255,255,255,0.22);
  box-shadow: 0 8px 0 rgba(255,255,255,0.16), 0 16px 0 rgba(255,255,255,0.12);
}

.introText h1{
  margin:0 0 6px;
  font-size: 22px;
}
.introText p{
  margin:0 0 12px;
  color: var(--muted);
  line-height:1.5;
}

.meta{ display:flex; gap:8px; flex-wrap:wrap; }
.pill{
  padding:7px 10px;
  border-radius: 999px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.10);
  color: rgba(255,255,255,0.80);
  font-size: 13px;
}
.pill.subtle{ color: var(--muted2); }

.editorHeader{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 14px 14px 10px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.label{ color: rgba(255,255,255,0.86); font-weight:650; }
.count{ margin-left:10px; color: var(--muted2); font-size: 13px; }
.editorHeader .left{ display:flex; align-items:baseline; }
.editorHeader .right{ display:flex; gap:8px; }

textarea{
  width:100%;
  min-height: 48vh;
  resize: vertical;
  border:none;
  outline:none;
  padding: 16px;
  color: rgba(255,255,255,0.92);
  background: transparent;
  font-size: 16px;
  line-height: 1.6;
}
textarea::placeholder{ color: rgba(255,255,255,0.30); }

.hint{
  padding: 0 16px 14px;
  color: rgba(255,255,255,0.38);
  font-size: 13px;
}

.dropActive{
  border-color: rgba(45,212,191,0.45) !important;
  box-shadow:
    0 18px 70px rgba(45,212,191,0.22),
    0 0 0 1px rgba(56,189,248,0.25);
  transform: translateY(-2px);
  transition: all .18s ease;
}


.toast{
  position: fixed;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%) translateY(20px);
  background: rgba(10,12,16,0.72);
  border: 1px solid rgba(255,255,255,0.10);
  backdrop-filter: blur(12px);
  padding: 10px 12px;
  border-radius: 999px;
  color: rgba(255,255,255,0.88);
  font-size: 14px;
  opacity:0;
  pointer-events:none;
  transition: opacity .18s ease, transform .18s ease;
  box-shadow: 0 18px 60px rgba(0,0,0,0.45);
}
.toast.show{
  opacity:1;
  transform: translateX(-50%) translateY(0);
}