/* ===== 小喵拼豆生成器 - 苹果毛玻璃风格 ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
    --bg:#e8e6e1;--card:rgba(255,255,255,0.72);--text:#1d1d1f;
    --muted:#86868b;--primary:#ff6b3d;--phover:#e55a2f;
    --border:rgba(0,0,0,0.08);--radius:16px;
    --font:-apple-system,BlinkMacSystemFont,"SF Pro Display","PingFang SC","Microsoft YaHei",sans-serif;
}

html{font-size:16px}
body{
    font-family:var(--font);background:var(--bg);color:var(--text);
    min-height:100vh;min-height:100dvh;
    -webkit-tap-highlight-color:transparent;touch-action:manipulation;
    background:linear-gradient(180deg, #f0ede7 0%, #e8e5df 30%, #e0ddd6 100%);
}

/* ===== 顶栏 - 毛玻璃 ===== */
.header{
    background:rgba(255,255,255,0.68);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
    padding:12px 18px;display:flex;align-items:center;justify-content:space-between;
    border-bottom:1px solid rgba(0,0,0,0.06);position:sticky;top:0;z-index:100;
}
.logo{font-size:17px;font-weight:700;letter-spacing:-0.3px;color:var(--text)}
.nav{display:flex;gap:6px}
.nav a{
    font-size:13px;color:var(--muted);text-decoration:none;font-weight:500;
    padding:7px 14px;border-radius:20px;transition:all .15s;
}
.nav a:active{background:rgba(0,0,0,0.04);color:var(--text)}

/* ===== 主布局 ===== */
.main-container{padding:12px 12px 40px;display:flex;flex-direction:column;gap:12px;max-width:600px;margin:0 auto}

/* ===== 毛玻璃卡片 ===== */
.block{
    background:var(--card);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
    border-radius:var(--radius);padding:18px;
    border:1px solid rgba(255,255,255,0.6);
    box-shadow:0 2px 16px rgba(0,0,0,0.04),0 8px 32px rgba(0,0,0,0.04);
}
.block-title{font-size:15px;font-weight:600;margin-bottom:14px;display:flex;align-items:center;justify-content:space-between;letter-spacing:-0.2px}

/* ===== 上传区 ===== */
.upload-area{
    border:2px dashed rgba(0,0,0,0.12);border-radius:12px;padding:28px 20px;
    text-align:center;cursor:pointer;transition:all .2s;
    background:rgba(255,255,255,0.4);
}
.upload-area:active,.upload-area.drag-over{border-color:var(--primary);background:rgba(255,107,61,0.06)}
.upload-inner{display:flex;flex-direction:column;align-items:center;gap:8px;color:var(--muted);font-size:14px}
.upload-icon{font-size:36px}
.preview-img{max-width:100%;max-height:150px;border-radius:10px;object-fit:contain;margin:0 auto;display:block}

/* ===== 设置区 ===== */
.settings-row{display:flex;gap:8px;margin-bottom:10px;flex-wrap:wrap}
.setting-item{flex:1;min-width:80px}
.setting-item label{display:block;font-size:11px;color:var(--muted);margin-bottom:4px;font-weight:600;text-transform:uppercase;letter-spacing:0.5px}
.setting-item select{
    width:100%;padding:10px 12px;border:1.5px solid rgba(0,0,0,0.1);border-radius:10px;
    font-size:14px;background:rgba(255,255,255,0.6);font-family:var(--font);font-weight:500;
    -webkit-appearance:none;appearance:none;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2386868b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat:no-repeat;background-position:right 10px center;padding-right:30px;
}
.checkbox-label{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:6px;cursor:pointer;font-weight:500}
.checkbox-label input{accent-color:var(--primary);width:18px;height:18px}

/* ===== 按钮 - 苹果风格 ===== */
.btn{
    display:inline-flex;align-items:center;justify-content:center;
    padding:12px 22px;border-radius:24px;border:none;
    font-size:15px;font-weight:600;cursor:pointer;font-family:var(--font);
    transition:all .15s;-webkit-tap-highlight-color:transparent;letter-spacing:-0.2px;
}
.btn-primary{background:#1d1d1f;color:#fff}
.btn-primary:active{background:#333;transform:scale(0.97)}
.btn-secondary{background:rgba(0,0,0,0.05);color:var(--text)}
.btn-secondary:active{background:rgba(0,0,0,0.1)}
.btn-full{width:100%}

/* ===== 搜索 ===== */
.search-input{
    width:100%;padding:10px 14px;border:1.5px solid rgba(0,0,0,0.1);border-radius:10px;
    font-size:14px;margin-bottom:10px;font-family:var(--font);background:rgba(255,255,255,0.5);
}

/* ===== 颜色面板 ===== */
.palette-strip{display:flex;flex-wrap:wrap;gap:5px;max-height:180px;overflow-y:auto;-webkit-overflow-scrolling:touch}
.palette-dot{
    width:34px;height:34px;border-radius:10px;border:2px solid transparent;
    cursor:pointer;flex-shrink:0;transition:all .15s;
    box-shadow:0 1px 3px rgba(0,0,0,0.08);
}
.palette-dot:active{transform:scale(1.4);z-index:2;box-shadow:0 4px 16px rgba(0,0,0,0.15)}
.palette-dot.selected{border-color:#1d1d1f;box-shadow:0 0 0 2px #fff, 0 0 0 4px #1d1d1f;transform:scale(1.15)}

/* ===== 画布 ===== */
.block-canvas{padding:10px}
.canvas-container{
    position:relative;background:rgba(255,255,255,0.5);border-radius:12px;
    overflow:hidden;min-height:240px;display:flex;
    align-items:center;justify-content:center;border:1px solid rgba(0,0,0,0.04);
}
.canvas-container canvas{display:block;max-width:100%;image-rendering:pixelated;touch-action:none}
.canvas-empty{position:absolute;color:#b0ada6;font-size:14px;pointer-events:none;text-align:center;padding:20px}
.canvas-zoom{display:flex;align-items:center;justify-content:center;gap:12px;padding:14px 0 4px}
.zoom-btn{
    width:48px;height:48px;border:1.5px solid rgba(0,0,0,0.1);border-radius:24px;
    background:rgba(255,255,255,0.6);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
    font-size:20px;cursor:pointer;display:flex;align-items:center;justify-content:center;
    transition:all .15s;box-shadow:0 2px 8px rgba(0,0,0,0.04);
}
.zoom-btn:active{background:rgba(255,255,255,0.9);transform:scale(0.93)}
.zoom-label{font-size:14px;color:var(--muted);min-width:50px;text-align:center;font-weight:600}

/* ===== 统计区 ===== */
.stats-grid{display:flex;flex-direction:column;gap:2px;max-height:220px;overflow-y:auto;margin-bottom:14px}
.stat-row{display:flex;align-items:center;gap:10px;padding:6px 10px;border-radius:10px;font-size:13px}
.stat-row:active{background:rgba(0,0,0,0.03)}
.stat-dot{width:22px;height:22px;border-radius:6px;border:1px solid rgba(0,0,0,0.1);flex-shrink:0}
.stat-code{font-weight:700;min-width:30px;font-size:12px}
.stat-name{color:var(--muted);flex:1;font-size:12px}
.stat-cnt{font-weight:700;color:var(--primary);font-size:14px}
#statSummary{font-size:12px;color:var(--muted);font-weight:500}

/* ===== 弹窗 - 毛玻璃 ===== */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.3);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);z-index:999;display:flex;align-items:center;justify-content:center;padding:20px}
.modal{
    background:rgba(255,255,255,0.85);backdrop-filter:blur(30px);-webkit-backdrop-filter:blur(30px);
    border-radius:20px;padding:30px 26px;text-align:center;width:100%;max-width:340px;
    box-shadow:0 20px 60px rgba(0,0,0,0.15);border:1px solid rgba(255,255,255,0.6);
}
.modal h3{margin-bottom:14px;font-size:18px;font-weight:700}
.input-code{width:100%;padding:14px 16px;border:2px solid rgba(0,0,0,0.1);border-radius:12px;font-size:18px;text-align:center;letter-spacing:3px;margin-bottom:16px;font-family:var(--font);background:rgba(255,255,255,0.5)}
.modal-btns{display:flex;gap:10px;justify-content:center}
.activate-msg{margin-top:14px;font-size:14px;min-height:22px;font-weight:500}
.activate-msg.success{color:#34c759}
.activate-msg.error{color:#ff3b30}

/* ===== 图片预览弹窗 ===== */
.modal-preview{
    max-width:90vw;max-height:90vh;padding:12px;position:relative;
    background:rgba(255,255,255,0.92);
}
.preview-close{
    position:absolute;top:8px;right:8px;width:32px;height:32px;
    border-radius:16px;border:none;background:rgba(0,0,0,0.5);color:#fff;
    font-size:16px;cursor:pointer;z-index:2;line-height:32px;text-align:center;padding:0;
}
.preview-image{
    width:100%;max-height:70vh;object-fit:contain;display:block;
    image-rendering:pixelated;border-radius:8px;
}
.preview-info{
    text-align:center;margin-top:10px;font-size:13px;color:var(--text);
    line-height:1.6;
}
.preview-info strong{font-weight:600}
.preview-download-btn{
    margin-top:10px;width:100%;
}

/* ===== 生成记录 ===== */
.history-list{
    display:flex;gap:10px;overflow-x:auto;overflow-y:hidden;
    -webkit-overflow-scrolling:touch;scroll-behavior:smooth;
    padding:4px 0 8px;scrollbar-width:none;-ms-overflow-style:none;
}
.history-list::-webkit-scrollbar{display:none}
.history-card{
    flex-shrink:0;width:130px;background:rgba(255,255,255,0.55);
    border-radius:12px;padding:0 0 8px;
    border:1px solid rgba(0,0,0,0.06);
    cursor:pointer;transition:all .15s;position:relative;overflow:hidden;
    box-shadow:0 1px 6px rgba(0,0,0,0.03);
}
.history-card:active{transform:scale(0.96);background:rgba(255,255,255,0.8)}
.history-thumb{
    width:130px;height:130px;object-fit:contain;display:block;
    image-rendering:pixelated;background:rgba(255,255,255,0.5);
    border-bottom:1px solid rgba(0,0,0,0.04);
}
.history-info{padding:6px 10px 0}
.history-time{font-size:10px;color:var(--muted);margin-bottom:2px}
.history-meta{font-size:10px;color:var(--muted);line-height:1.4}
.history-meta strong{color:var(--text);font-weight:600}
.history-delete{
    position:absolute;top:4px;right:4px;width:22px;height:22px;
    border-radius:11px;border:none;background:rgba(0,0,0,0.45);color:#fff;
    font-size:12px;line-height:22px;text-align:center;cursor:pointer;
    opacity:0;transition:opacity .15s;padding:0;
}
.history-card:hover .history-delete,.history-card:active .history-delete{opacity:1}
.history-empty{color:var(--muted);font-size:13px;text-align:center;padding:12px 0}

/* 桌面端：换行显示 */
@media (min-width:768px){
    .history-list{flex-wrap:wrap;overflow-x:visible}
    #blockHistory{grid-column:1/4;grid-row:4}
}
@media (min-width:768px){
    .main-container{max-width:1100px;display:grid;grid-template-columns:270px 1fr 250px;grid-template-rows:auto auto auto;gap:14px;padding:18px}
    #blockUpload{grid-column:1;grid-row:1}
    #blockSettings{grid-column:1;grid-row:2}
    #blockPalette{grid-column:3;grid-row:1/4}
    #blockCanvas{grid-column:2;grid-row:1/3}
    #blockStats{grid-column:1;grid-row:3}
    .palette-strip{max-height:440px}
    .canvas-container{min-height:440px}
}