/* style.css —— 花生成器，蓝白配色对齐主站 main.css 的 CSS 变量 */
:root{
	--blue: #4696d2;
	--blue-dark: #2c6f9e;
	--blue-deep: #1f5b8a;
	--blue-light: #eaf4fb;
	--blue-soft: #f4f9fd;

	--bg: #f7fafc;
	--card: #ffffff;
	--border: #d6e8f5;
	--text: #3d5a73;
	--text-strong: #1f3a52;
	--text-dim: #7a97ad;
	--shadow-out: 0 3px 12px rgba(70, 150, 210, 0.12);
	--shadow-hover: 0 10px 24px rgba(70, 150, 210, 0.2);
	--nav-bg: rgba(247, 250, 252, 0.85);
}

html.dark{
	--blue: #63aadd;
	--blue-dark: #7db9e4;
	--blue-light: #1d3346;
	--blue-soft: #16242f;

	--bg: #0e1a26;
	--card: #16242f;
	--border: #244055;
	--text: #a8c1d6;
	--text-strong: #d7e6f2;
	--text-dim: #6d8ba3;
	--shadow-out: 0 3px 14px rgba(0, 0, 0, 0.5);
	--shadow-hover: 0 10px 26px rgba(0, 0, 0, 0.6);
	--nav-bg: rgba(14, 26, 38, 0.85);
}

*{ box-sizing: border-box; }

html{ background: var(--bg); }

body{
	margin: 0;
	font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
	color: var(--text);
	min-height: 100vh;
	/* 大花作页面装饰：右上角淡出 */
	background:
		url("../images/flower.min.svg") no-repeat calc(100% + 500px) -520px / 1680px 1680px,
		var(--bg);
	background-attachment: fixed;
}

a{ color: inherit; text-decoration: none; }
button{ font-family: inherit; }

/* ---------- 顶部导航 ---------- */
.nav{
	position: sticky;
	top: 0;
	z-index: 20;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	padding: 12px 20px;
	background: var(--nav-bg);
	backdrop-filter: blur(8px);
	border-bottom: 1px solid var(--border);
}
.nav-logo{
	display: flex;
	align-items: center;
	gap: 8px;
	font-weight: 700;
	color: var(--text-strong);
}
.nav-logo img{ width: 26px; height: 26px; }
.nav-links{ display: flex; align-items: center; gap: 10px; }
.nav-links a{
	padding: 6px 12px;
	border-radius: 8px;
	color: var(--text);
	transition: background .15s, color .15s;
}
.nav-links a:hover{ background: var(--blue-light); color: var(--blue-dark); }
.theme-btn{
	width: 34px; height: 34px;
	border: 1px solid var(--border);
	border-radius: 50%;
	background: var(--card);
	color: var(--text);
	cursor: pointer;
	display: inline-flex;
	align-items: center;
	justify-content: center;
}
.theme-btn svg{ width: 18px; height: 18px; }
.theme-btn .icon-moon{ display: none; }
html.dark .theme-btn .icon-sun{ display: none; }
html.dark .theme-btn .icon-moon{ display: block; }

/* ---------- 头部 ---------- */
.hero{ text-align: center; padding: 34px 20px 10px; }
.hero h1{ margin: 0 0 6px; font-size: 26px; color: var(--text-strong); }
.hero p{ margin: 0; color: var(--text-dim); font-size: 14px; }

/* ---------- 主体布局 ---------- */
.container{
	max-width: 1080px;
	margin: 18px auto 60px;
	padding: 0 20px;
	display: grid;
	grid-template-columns: 1fr 320px;
	gap: 20px;
	align-items: start;
}

.panel, .stage{
	background: var(--card);
	border: 1px solid var(--border);
	border-radius: 14px;
	box-shadow: var(--shadow-out);
}

/* 控制面板 */
.panel{ padding: 18px 18px 22px; }
.panel h2{
	margin: 0 0 14px;
	font-size: 16px;
	color: var(--text-strong);
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 8px;
}
.panel h2 .hint{ font-size: 12px; font-weight: 400; color: var(--text-dim); }

.field{ margin-bottom: 14px; }
.field > label{
	display: flex;
	justify-content: space-between;
	align-items: baseline;
	font-size: 13px;
	color: var(--text);
	margin-bottom: 6px;
}
.field .val{
	font-variant-numeric: tabular-nums;
	color: var(--blue-dark);
	font-weight: 600;
}
.field .val.dim{ color: var(--text-dim); }

input[type="range"]{
	width: 100%;
	accent-color: var(--blue);
}

.check-line{
	display: flex;
	align-items: center;
	gap: 8px;
	font-size: 14px;
	color: var(--text);
	margin: 10px 0;
	cursor: pointer;
}
.check-line input{ accent-color: var(--blue); width: 16px; height: 16px; }

select, input[type="text"], input[type="color"]{
	width: 100%;
	padding: 7px 10px;
	border: 1px solid var(--border);
	border-radius: 8px;
	background: var(--blue-soft);
	color: var(--text);
	font-size: 13px;
	outline: none;
}
select:focus, input[type="text"]:focus{ border-color: var(--blue); }
select:disabled{ opacity: .45; cursor: not-allowed; }

/* 昵称输入行 */
.seed-row{ display: flex; gap: 8px; align-items: center; }
.seed-row input{ flex: 1; }
.seed-row .btn.small{ flex: 0 0 auto; width: auto; padding: 7px 16px; font-size: 13px; }

input[type="color"]{ height: 38px; padding: 3px; cursor: pointer; }

/* 色板 */
.color-row{ display: flex; gap: 8px; align-items: center; }
.color-row input[type="color"]{ flex: 0 0 46px; }
#color-hex{
	flex: 1;
	font-family: ui-monospace, Consolas, monospace;
	font-size: 13px;
	color: var(--text-dim);
}
.swatches{ display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.swatch{
	width: 26px; height: 26px;
	border-radius: 50%;
	border: 2px solid var(--card);
	box-shadow: 0 0 0 1px var(--border);
	cursor: pointer;
	padding: 0;
	transition: transform .12s;
}
.swatch:hover{ transform: scale(1.15); }
.swatch.active{ box-shadow: 0 0 0 2px var(--blue); }

/* 按钮 */
.btn{
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
	width: 100%;
	padding: 10px 12px;
	border: none;
	border-radius: 10px;
	font-size: 14px;
	font-weight: 600;
	cursor: pointer;
	background: var(--blue);
	color: #fff;
	transition: background .15s, transform .1s;
}
.btn:hover{ background: var(--blue-dark); }
.btn:active{ transform: translateY(1px); }
.btn:disabled{ opacity: .55; cursor: wait; }
.btn.ghost{
	background: var(--blue-light);
	color: var(--blue-dark);
}
.btn.ghost:hover{ background: var(--border); }
.btn-row{ display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 12px; }
.btn-row .btn:first-child:nth-last-child(1){ grid-column: 1 / -1; }

.section-title{
	margin: 20px 0 8px;
	font-size: 13px;
	color: var(--text-dim);
	letter-spacing: .05em;
	border-top: 1px dashed var(--border);
	padding-top: 14px;
}

/* 预览区 */
.stage{ padding: 18px; }
.stage-top{
	display: flex;
	justify-content: space-between;
	align-items: center;
	margin-bottom: 14px;
	gap: 10px;
	flex-wrap: wrap;
}
.stage-top .meta{ font-size: 13px; color: var(--text-dim); }
.stage-top .meta b{ color: var(--blue-dark); font-variant-numeric: tabular-nums; }

#preview-wrap{
	background:
		linear-gradient(45deg, var(--blue-soft) 25%, transparent 25%),
		linear-gradient(-45deg, var(--blue-soft) 25%, transparent 25%),
		linear-gradient(45deg, transparent 75%, var(--blue-soft) 75%),
		linear-gradient(-45deg, transparent 75%, var(--blue-soft) 75%);
	background-size: 20px 20px;
	background-position: 0 0, 0 10px, 10px -10px, -10px 0;
	border: 1px solid var(--border);
	border-radius: 12px;
	padding: 12px;
}
#preview-svg{
	display: block;
	width: 100%;
	height: auto;
	border-radius: 8px;
}

.export-box{ margin-top: 16px; }
.export-box .row{
	display: flex;
	gap: 10px;
	align-items: flex-end;
	flex-wrap: wrap;
}
.export-box label{ font-size: 12px; color: var(--text-dim); display: block; margin-bottom: 4px; }
.export-box select{ flex: 0 0 150px; }
.export-box .btn{ flex: 1; min-width: 120px; }

.footer{
	text-align: center;
	color: var(--text-dim);
	font-size: 12px;
	padding: 0 20px 40px;
}

@media (max-width: 820px){
	.container{ grid-template-columns: 1fr; }
	.nav-links a.home{ display: none; }
}