:root{
	--bg:#0f1222; --panel:#171a2e; --muted:#9aa0b3; --text:#e8eaf6;
	--accent:#8ab4ff; --good:#69db7c; --warn:#ffd43b; --bad:#ff6b6b; --chip:#232746;
}

/* 기본 레이아웃 */
*{box-sizing:border-box}
html,body{height:100%}
body{
	margin:0;
	background:linear-gradient(180deg,#0f1222,#0b0f1c);
	font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
	color:var(--text)
}
.container{max-width:980px;margin:0 auto;padding:24px}

/* Header */
header{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:16px}
header h1{font-size:clamp(20px,4vw,28px);margin:0}
header .tz{margin-left:auto;color:var(--muted);font-size:14px}

/* 카드 */
.card{
	background:var(--panel);border:1px solid #20264a;border-radius:16px;
	box-shadow:0 10px 24px rgba(0,0,0,.35);padding:16px
}

/* 폼/버튼 */
.row{display:flex;gap:12px;flex-wrap:wrap}
.col{flex:1 1 240px}
label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px}
input[type="text"], input[type="time"], input[type="number"], select{
	width:100%;padding:12px 12px;border-radius:12px;background:#0e1227;color:var(--text);border:1px solid #253064
}
input[type="checkbox"]{transform:scale(1.2)}
.radio-group{display:flex;gap:8px;flex-wrap:wrap}
.radio{padding:8px 12px;border:1px solid #2b356e;background:#121634;border-radius:999px;cursor:pointer;user-select:none}
.radio input{margin-right:6px}
.btn{appearance:none;border:none;border-radius:12px;padding:12px 14px;background:#2b356e;color:var(--text);cursor:pointer}
.btn:hover{filter:brightness(1.1)}
.btn.primary{background:linear-gradient(90deg,#5b7cff,#7aa1ff)}
.btn.ghost{background:transparent;border:1px solid #2b356e}
.btn.small{padding:6px 10px;font-size:12px;border-radius:10px}
.stack{display:flex;gap:8px;flex-wrap:wrap}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{background:var(--chip);color:#c6d0f5;border:1px solid #2b356e;padding:6px 10px;border-radius:999px;font-size:12px;cursor:pointer}
.chip.active{background:#24366b;border-color:#4460c7}
.banner{border:1px dashed #2b356e;background:#0c1130;border-radius:12px;padding:10px 12px;font-size:14px;color:#cdd3f9}

/* 레이아웃 보조 */
.grid{display:grid;grid-template-columns:1fr;gap:10px}
@media (min-width:720px){.grid{grid-template-columns:1.2fr .8fr}}

/* 타이머 목록 */
.timer-list{margin-top:14px}
.timer-item{
	display:grid;grid-template-columns:1fr 120px 140px 120px auto;gap:10px;align-items:center;
	background:#101534;border:1px solid #212a57;border-radius:12px;padding:10px
}
.timer-item h4{margin:0;font-size:15px}
.meta{color:var(--muted);font-size:12px}
.tag{display:inline-block;background:#1b2348;color:#cfd6ff;border:1px solid #33407a;padding:2px 8px;border-radius:999px;font-size:11px;margin-right:6px}
.remains{font-variant-numeric:tabular-nums}
.soon{color:var(--warn)}
.due{color:var(--good)}
.overdue{color:var(--bad)}

.section-title{margin:18px 0 10px 0;font-size:16px;color:#c8ceef}
footer{margin-top:24px;color:var(--muted);font-size:12px}
.danger{color:#ff8787}

/* ==== History panel ==== */
.panel{
	border:1px solid #20264a;
	border-radius:16px;
	padding:16px;
	margin-top:16px;
	background:var(--panel);
	box-shadow:0 10px 24px rgba(0,0,0,.25);
}
.panel-header{
	display:flex;
	align-items:center;
	justify-content:space-between;
	gap:12px;
	margin-bottom:8px;
}
.panel-header h2{
	font-size:1.1rem;
	margin:0;
}
.panel-header .actions{
	display:flex;
	align-items:center;
	gap:8px;
}
.muted{
	color:var(--muted);
	font-size:0.9rem;
}
.history-list{
	list-style:none;
	margin:0;
	padding:0;
}
.history-item{
	display:grid;
	grid-template-columns:1fr auto auto;
	align-items:center;
	gap:10px;
	padding:10px 8px;
	border-top:1px dashed #2b356e;
}
.history-item:first-child{border-top:none}
.history-title{font-weight:600}
.history-meta{font-size:0.9rem;color:var(--muted)}
.history-delete{
	appearance:none;
	border:1px solid #2b356e;
	background:#121634;
	border-radius:10px;
	padding:6px 10px;
	cursor:pointer;
	color:var(--text);
}
.history-delete:hover{filter:brightness(1.1)}