/* V3拼豆助手 - 双主题系统 · iOS简约白色 + 深夜暗色 */

/* ===== CSS 变量定义 ===== */
:root {
  --bg: #F5F5F7;
  --panel: rgba(255,255,255,.78);
  --panel-border: rgba(0,0,0,.06);
  --text: #1D1D1F;
  --text2: #3A3A3C;
  --text3: #8E8E93;
  --text4: #C7C7CC;
  --accent: #007AFF;
  --accent-h: #0066D4;
  --danger: #FF3B30;
  --panel-sh: 0 2px 16px rgba(0,0,0,.04), 0 0 0 .5px rgba(0,0,0,.02);
  --grid-bg: #FFFFFF;
  --grid-border: rgba(0,0,0,.06);
  --up-border: rgba(0,0,0,.1);
  --up-border-h: #007AFF;
  --up-bg-h: rgba(0,122,255,.02);
  --btn-sh: 0 2px 10px rgba(0,122,255,.18);
  --legend-bg: rgba(0,0,0,.02);
  --legend-border: rgba(0,0,0,.03);
  --cell-border: rgba(0,0,0,.1);
  --shimmer1: rgba(255,255,255,.5);
  --shimmer2: rgba(255,255,255,.1);
}

[data-theme="dark"] {
  --bg: #0A0A1A;
  --panel: rgba(28,28,45,.72);
  --panel-border: rgba(255,255,255,.08);
  --text: #F5F5F7;
  --text2: #E5E5EA;
  --text3: #8E8E93;
  --text4: #636366;
  --accent: #0A84FF;
  --accent-h: #0066D4;
  --danger: #FF453A;
  --panel-sh: 0 4px 24px rgba(0,0,0,.35), 0 0 0 .5px rgba(255,255,255,.06);
  --grid-bg: rgba(0,0,0,.35);
  --grid-border: rgba(255,255,255,.06);
  --up-border: rgba(255,255,255,.12);
  --up-border-h: #0A84FF;
  --up-bg-h: rgba(10,132,255,.05);
  --btn-sh: 0 2px 12px rgba(10,132,255,.25);
  --legend-bg: rgba(255,255,255,.04);
  --legend-border: rgba(255,255,255,.06);
  --cell-border: rgba(255,255,255,.08);
  --shimmer1: rgba(255,255,255,.06);
  --shimmer2: rgba(255,255,255,.02);
}

/* ===== 基础 ===== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}

body{
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","SF Pro Display","Helvetica Neue",sans-serif;
  background:var(--bg);
  color:var(--text);
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
  transition:background .4s,color .4s;
}

.container{max-width:800px;margin:0 auto;padding:0 20px;position:relative}
@media(max-width:480px){.container{padding:0 14px}}

/* ===== 主题切换按钮 ===== */
.theme-toggle{
  position:fixed;top:16px;left:16px;z-index:1000;
  width:40px;height:40px;border-radius:12px;
  background:var(--panel);border:1px solid var(--panel-border);
  box-shadow:var(--panel-sh);cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:all .3s;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
}
.theme-toggle:hover{transform:scale(1.1);box-shadow:0 4px 16px rgba(0,0,0,.1)}
.theme-toggle:active{transform:scale(.93)}

/* 太阳图标 - 纯CSS */
.icon-sun{width:16px;height:16px;border-radius:50%;background:#FFD60A;position:relative}
.icon-sun::before{content:'';position:absolute;top:50%;left:50%;width:2px;height:4px;background:#FFD60A;border-radius:1px;transform:translate(-50%,-50%);box-shadow:0 -9px 0 #FFD60A,0 9px 0 #FFD60A,-9px 0 0 #FFD60A,9px 0 0 #FFD60A,-6px -6px 0 #FFD60A,6px -6px 0 #FFD60A,-6px 6px 0 #FFD60A,6px 6px 0 #FFD60A}

/* 月亮图标 - 纯CSS */
.icon-moon{width:16px;height:16px;border-radius:50%;background:transparent;position:relative}
.icon-moon::before{content:'';position:absolute;width:14px;height:14px;border-radius:50%;background:transparent;box-shadow:inset -4px -1px 0 2px #8E8E93;top:1px;left:1px}

/* ===== Hero ===== */
.hero{text-align:center;padding:56px 0 28px}
.hero-title{font-size:40px;font-weight:700;letter-spacing:-.03em;line-height:1.1;color:var(--text)}
.hero-subtitle{font-size:15px;color:var(--text3);margin-top:8px}
@media(max-width:480px){.hero-title{font-size:32px}.hero{padding-top:40px}}

/* ===== 面板 ===== */
.panel{
  background:var(--panel);backdrop-filter:blur(24px) saturate(1.5);-webkit-backdrop-filter:blur(24px) saturate(1.5);
  border:1px solid var(--panel-border);border-radius:18px;padding:24px;
  box-shadow:var(--panel-sh);margin-bottom:20px;position:relative;overflow:hidden;
  transition:background .4s,border-color .4s,box-shadow .4s;
}
.panel::before{
  content:'';position:absolute;top:-50%;left:-30%;width:160%;height:160%;
  background:radial-gradient(ellipse at 30% 20%,var(--shimmer1) 0%,var(--shimmer2) 40%,transparent 70%);
  pointer-events:none;animation:sh 10s ease-in-out infinite;
}
@keyframes sh{0%,100%{transform:translate(0,0)}50%{transform:translate(3%,2%)}}

/* ===== 上传区 ===== */
.upload-zone{
  height:160px;border:2px dashed var(--up-border);border-radius:14px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  cursor:pointer;transition:all .3s;position:relative;z-index:1;
}
.upload-zone:hover{border-color:var(--up-border-h);background:var(--up-bg-h)}
.upload-zone.drag{border-style:solid;border-color:var(--accent);background:rgba(10,132,255,.06);transform:scale(1.01)}
.upload-zone.has{border-style:solid;border-color:rgba(10,132,255,.28)}

.icon-upload{width:40px;height:40px;position:relative}
.icon-upload::before{content:'';position:absolute;bottom:6px;left:50%;transform:translateX(-50%);width:28px;height:16px;background:var(--text4);border-radius:16px 16px 3px 3px;opacity:.4}
.icon-upload::after{content:'';position:absolute;top:4px;left:50%;transform:translateX(-50%);width:0;height:0;border-left:6px solid transparent;border-right:6px solid transparent;border-bottom:11px solid var(--accent);opacity:.55}
.upload-text{font-size:15px;font-weight:500;color:var(--text2)}
.upload-hint{font-size:12px;color:var(--text4)}

/* 文件预览 */
.fp{display:flex;align-items:center;gap:14px;width:100%;position:relative;z-index:1}
.fp img{width:60px;height:60px;object-fit:cover;border-radius:10px;border:1px solid var(--panel-border);flex-shrink:0}
.fp div{flex:1;min-width:0}
.fp b{display:block;font-size:14px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.fp span{font-size:12px;color:var(--text3)}

.x{width:28px;height:28px;display:flex;align-items:center;justify-content:center;background:var(--legend-bg);border:1px solid var(--legend-border);border-radius:8px;cursor:pointer;color:var(--text3);transition:.2s;position:relative;flex-shrink:0}
.x:hover{background:rgba(255,59,48,.1);color:var(--danger)}
.x::before,.x::after{content:'';position:absolute;width:12px;height:1.5px;background:currentColor;border-radius:1px}
.x::before{transform:rotate(45deg)}.x::after{transform:rotate(-45deg)}

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

/* ===== 参数 ===== */
.params{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:20px;padding-top:20px;border-top:1px solid var(--panel-border);position:relative;z-index:1}
@media(max-width:480px){.params{grid-template-columns:1fr}}

.param-row label{display:flex;justify-content:space-between;align-items:center;font-size:13px;font-weight:500;color:var(--text2);margin-bottom:6px}
.param-row label b{font-weight:700;color:var(--accent);font-family:"SF Mono",monospace;font-size:14px}
.param-row label small{color:var(--text4);font-weight:400;margin-left:2px}

input[type="range"]{-webkit-appearance:none;appearance:none;width:100%;height:5px;background:var(--legend-bg);border-radius:3px;outline:none;cursor:pointer}
input[type="range"]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;background:var(--text);border-radius:50%;cursor:pointer;box-shadow:0 1px 4px rgba(0,0,0,.2),0 0 0 2.5px rgba(10,132,255,.15);transition:.15s}
[data-theme="dark"] input[type="range"]::-webkit-slider-thumb{background:#E5E5EA}
input[type="range"]::-webkit-slider-thumb:hover{transform:scale(1.1);box-shadow:0 2px 8px rgba(10,132,255,.2),0 0 0 3px rgba(10,132,255,.2)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:12px 24px;background:var(--accent);border:none;border-radius:12px;
  color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:all .2s;
  box-shadow:var(--btn-sh);position:relative;z-index:1;width:100%;margin-top:20px;
}
.btn:hover{background:var(--accent-h);box-shadow:0 4px 16px rgba(10,132,255,.3);transform:translateY(-.5px)}
.btn:active{transform:scale(.98)}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.btn.sm{width:auto;padding:8px 16px;font-size:13px;border-radius:10px;margin-top:0}
.btn.ghost{background:var(--legend-bg);color:var(--accent);box-shadow:none}
.btn.ghost:hover{background:rgba(10,132,255,.1)}

.sp{width:16px;height:16px;border:2px solid rgba(255,255,255,.25);border-top-color:#fff;border-radius:50%;animation:sp .7s linear infinite;display:inline-block}
@keyframes sp{to{transform:rotate(360deg)}}

/* ===== 结果面板 ===== */
.result{display:none;margin-bottom:20px}
.result.on{display:block;animation:fu .4s ease forwards}
@keyframes fu{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}

.bar{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;position:relative;z-index:1}
.bar h2{font-size:18px;font-weight:600;color:var(--text)}
.actions{display:flex;gap:8px}
.badge{font-size:11px;color:var(--text3);background:var(--legend-bg);padding:3px 10px;border-radius:12px;font-weight:500}

/* ===== 行列坐标轴 ===== */
.axis-corner,.axis-col,.axis-row{
  background:transparent;
  color:var(--text3);
  font-family:"SF Mono",monospace;
  font-size:9px;
  font-weight:600;
  text-align:center;
  vertical-align:middle;
  padding:2px;
  user-select:none;
}
.axis-corner{width:22px;min-width:22px}
.axis-col{height:16px;min-height:16px}
.axis-row{width:22px;min-width:22px;text-align:right;padding-right:4px}

/* ===== 像素网格 ===== */
.grid-wrap{overflow:auto;max-height:520px;border-radius:10px;border:1px solid var(--grid-border);background:var(--grid-bg);position:relative;z-index:1;transition:background .4s}
.grid{border-collapse:separate;border-spacing:0;margin:0 auto}
.cell{
  width:var(--cs,18px);height:var(--cs,18px);min-width:var(--cs,18px);min-height:var(--cs,18px);
  text-align:center;vertical-align:middle;font-family:"SF Mono",monospace;
  font-size:var(--fs,7px);font-weight:700;border:.5px solid var(--cell-border);
  cursor:default;position:relative;transition:transform .12s,box-shadow .12s;
}
.cell:hover{transform:scale(1.4);z-index:10;box-shadow:0 2px 8px rgba(0,0,0,.25);border-radius:2px}
.cell span{pointer-events:none;user-select:none}

/* ===== Tooltip ===== */
.tooltip{
  position:fixed;background:rgba(20,20,30,.92);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:10px 16px;
  font-size:12px;color:#fff;pointer-events:none;z-index:1000;
  box-shadow:0 8px 24px rgba(0,0,0,.3);opacity:0;transition:opacity .12s;
  font-family:-apple-system,sans-serif;max-width:200px;
}
.tooltip.on{opacity:1}
.tt{display:flex;align-items:center;gap:8px;margin-bottom:4px}
.tp{width:18px;height:18px;border-radius:6px;display:inline-block;box-shadow:inset 0 0 0 1px rgba(255,255,255,.15),0 2px 4px rgba(0,0,0,.2);flex-shrink:0}
.tt strong{font-family:"SF Mono",monospace;font-size:14px;letter-spacing:-.02em}
.tn{color:rgba(255,255,255,.65);font-size:11px;margin-bottom:2px}
.tr{color:rgba(255,255,255,.4);font-size:10px;font-family:"SF Mono",monospace}

/* ===== 统计图例 ===== */
.legend{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;padding-top:16px;border-top:1px solid var(--panel-border);position:relative;z-index:1}
.lg{display:flex;flex-wrap:wrap;align-items:center;gap:6px;padding:6px 10px;background:var(--legend-bg);border-radius:10px;border:1px solid var(--legend-border);transition:background .4s}
.lt{font-size:10px;font-weight:600;color:var(--text3);margin-right:4px;text-transform:uppercase;letter-spacing:.05em;white-space:nowrap}
.li{display:flex;align-items:center;gap:5px;font-size:11px}
.li i{width:12px;height:12px;border-radius:3px;box-shadow:0 1px 3px rgba(0,0,0,.1),inset 0 1px 1px rgba(255,255,255,.25);flex-shrink:0}
.li b{font-family:"SF Mono",monospace;font-weight:600;color:var(--text)}
.li s{color:var(--text4);text-decoration:none;font-size:10px}

/* ===== 色卡面板 ===== */
#palWrap{position:relative;z-index:1}
.sg{margin-bottom:16px}
.sg:last-child{margin-bottom:0}
.sgt{display:flex;align-items:center;gap:8px;margin-bottom:8px}
.sgb{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;background:var(--accent);color:#fff;font-size:11px;font-weight:700;border-radius:7px;font-family:"SF Mono",monospace}
.sgn{font-size:12px;font-weight:500;color:var(--text3)}
.sgr{display:grid;grid-template-columns:repeat(10,1fr);gap:8px}
@media(max-width:768px){.sgr{grid-template-columns:repeat(6,1fr)}}
@media(max-width:480px){.sgr{grid-template-columns:repeat(5,1fr);gap:6px}}

.sc{display:flex;flex-direction:column;align-items:center;gap:3px}
.sw{width:100%;aspect-ratio:1;border-radius:8px;box-shadow:0 1px 5px rgba(0,0,0,.08),inset 0 1px 1px rgba(255,255,255,.3);transition:all .2s;position:relative;overflow:hidden}
.sw:hover{transform:scale(1.1);box-shadow:0 3px 12px rgba(0,0,0,.12),inset 0 1px 1px rgba(255,255,255,.35)}
.sw span{position:absolute;bottom:3px;right:3px;font-size:7px;font-family:"SF Mono",monospace;font-weight:700;padding:1px 3px;border-radius:2px;line-height:1.3}
.sn{font-size:10px;font-family:"SF Mono",monospace;font-weight:600;color:var(--text2)}
.sl{font-size:9px;color:var(--text4);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;text-align:center}

/* ===== Error Toast ===== */
.error-toast{
  display:none;position:fixed;top:16px;left:50%;transform:translateX(-50%);
  background:var(--panel);backdrop-filter:blur(16px);border:1px solid var(--panel-border);
  border-radius:12px;padding:10px 20px;color:var(--danger);font-size:13px;font-weight:500;
  z-index:1001;box-shadow:var(--panel-sh);max-width:90vw;text-align:center;
  transition:background .4s,color .4s;
}
.error-toast.on{display:block;animation:fd .25s ease}
@keyframes fd{from{opacity:0;transform:translateX(-50%)translateY(-8px)}to{opacity:1;transform:translateX(-50%)translateY(0)}}

/* ===== Footer ===== */
footer{text-align:center;padding:36px 0 28px;font-size:11px;color:var(--text4);position:relative;z-index:1}

/* ===== 联系开发者弹窗 ===== */
.contact-btn{
  display:block;width:fit-content;margin:0 auto 12px;
  padding:8px 20px;background:var(--accent);color:#fff;
  border:none;border-radius:10px;font-size:13px;font-weight:600;
  cursor:pointer;transition:all .2s;box-shadow:var(--btn-sh);
  position:relative;z-index:1;
}
.contact-btn:hover{transform:translateY(-1px);box-shadow:0 4px 14px rgba(10,132,255,.3)}

.modal-backdrop{
  display:none;position:fixed;top:0;left:0;width:100%;height:100%;
  background:rgba(0,0,0,.35);backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);z-index:2000;
  align-items:center;justify-content:center;opacity:0;
  transition:opacity .25s;
}
.modal-backdrop.on{display:flex;opacity:1}

.modal{
  background:var(--panel);backdrop-filter:blur(24px) saturate(1.5);
  -webkit-backdrop-filter:blur(24px) saturate(1.5);
  border:1px solid var(--panel-border);border-radius:18px;
  padding:28px;width:90%;max-width:360px;
  box-shadow:0 12px 40px rgba(0,0,0,.2);
  position:relative;transform:scale(.92);transition:transform .3s;
}
.modal-backdrop.on .modal{transform:scale(1)}

.modal .mc{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.modal .mc h3{font-size:17px;font-weight:600;color:var(--text)}

.modal .wxid{
  display:flex;align-items:center;gap:8px;
  padding:12px 16px;background:var(--legend-bg);
  border-radius:10px;border:1px solid var(--legend-border);
  cursor:pointer;transition:all .2s;margin-bottom:12px;
}
.modal .wxid:hover{background:rgba(10,132,255,.06);border-color:rgba(10,132,255,.2)}
.modal .wxid .wxt{
  font-family:"SF Mono",monospace;font-size:15px;font-weight:700;
  color:var(--accent);letter-spacing:-.02em;
}
.modal .wxid .copy{
  font-size:11px;color:var(--text3);margin-left:auto;white-space:nowrap;
}
.modal .wxid:hover .copy{color:var(--accent)}

.modal .desc{
  font-size:13px;color:var(--text3);line-height:1.6;
}
.modal .desc strong{color:var(--text2)}

/* 关闭按钮 - 纯CSS */
.modal .cl{
  width:28px;height:28px;display:flex;align-items:center;justify-content:center;
  background:var(--legend-bg);border:1px solid var(--legend-border);
  border-radius:8px;cursor:pointer;color:var(--text3);position:relative;transition:.2s;
}
.modal .cl:hover{background:rgba(255,59,48,.08);color:var(--danger)}
.modal .cl::before,.modal .cl::after{
  content:'';position:absolute;width:12px;height:1.5px;background:currentColor;border-radius:1px;
}
.modal .cl::before{transform:rotate(45deg)}.modal .cl::after{transform:rotate(-45deg)}

/* 复制成功提示 */
.copy-tip{
  display:none;position:fixed;bottom:40px;left:50%;transform:translateX(-50%);
  background:var(--panel);backdrop-filter:blur(12px);border:1px solid var(--panel-border);
  border-radius:10px;padding:8px 16px;font-size:13px;color:var(--text2);
  box-shadow:var(--panel-sh);z-index:3000;white-space:nowrap;
}
.copy-tip.show{display:block;animation:fu .3s ease}

/* ===== Hidden ===== */
canvas{display:none}