/* ==========================================================
   色值转换配色工具 - 专属样式
   迪妙网络空间安全学院 · 反钓工具箱
   说明：.navbar/.logo/.footer 桌面端样式由官网 ../../style.css 决定，
   本文件仅追加工具专属样式 + 移动端导航/页脚适配（规则与官网内联一致）
   ========================================================== */

:root {
    --tool-primary: #1a6eff;
    --tool-primary-light: #e8f1ff;
    --tool-text: #1a1a2e;
    --tool-text-2: #5a5a7a;
    --tool-text-3: #8a8aa0;
    --tool-border: #e8ecf4;
    --tool-bg: #ffffff;
    --tool-bg-warm: #f8fafc;
    --tool-radius: 16px;
    --tool-radius-sm: 10px;
    --tool-shadow: 0 4px 24px rgba(26, 110, 255, 0.08);
    --tool-shadow-hover: 0 12px 40px rgba(26, 110, 255, 0.15);
    --tool-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; }
body { background: var(--tool-bg); }

/* ===== 工具页头 ===== */
.tool-header {
    padding: 120px 0 48px;
    background: linear-gradient(180deg, #f0f5ff 0%, #ffffff 100%);
    text-align: center;
}
.tool-header .breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 18px;
    font-size: 13px;
    color: var(--tool-text-3);
}
.tool-header .breadcrumb a {
    color: var(--tool-primary);
    text-decoration: none;
    font-weight: 500;
}
.tool-header .breadcrumb a:hover { text-decoration: underline; }
.tool-header h1 {
    font-size: clamp(26px, 4vw, 38px);
    font-weight: 900;
    color: var(--tool-text);
    margin-bottom: 14px;
}
.tool-header p {
    font-size: 15px;
    color: var(--tool-text-2);
    max-width: 680px;
    margin: 0 auto 20px;
    line-height: 1.8;
}
.tool-badges {
    display: flex;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
}
.tool-badge {
    font-size: 12px;
    font-weight: 600;
    color: var(--tool-primary);
    background: var(--tool-primary-light);
    border: 1px solid rgba(26, 110, 255, 0.15);
    padding: 5px 14px;
    border-radius: 100px;
}

/* ===== 主体布局 ===== */
.tool-main { padding: 20px 0 80px; }
.panel {
    background: var(--tool-bg);
    border: 1px solid var(--tool-border);
    border-radius: var(--tool-radius);
    box-shadow: var(--tool-shadow);
    padding: 32px;
    margin-bottom: 32px;
    transition: var(--tool-transition);
}
.panel:hover { box-shadow: var(--tool-shadow-hover); }
.panel-head { margin-bottom: 24px; }
.panel-head h2 {
    font-size: 20px;
    font-weight: 800;
    color: var(--tool-text);
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}
.panel-dot {
    width: 8px; height: 8px;
    background: linear-gradient(135deg, #1a6eff, #0d4fc4);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(26, 110, 255, 0.12);
}
.panel-head p {
    font-size: 13px;
    color: var(--tool-text-3);
    line-height: 1.7;
    margin: 0;
}

/* ===== 通用控件 ===== */
.mini-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 18px;
    border: 1.5px solid var(--tool-border);
    background: #fff;
    border-radius: var(--tool-radius-sm);
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    color: var(--tool-text-2);
    cursor: pointer;
    transition: var(--tool-transition);
    white-space: nowrap;
}
.mini-btn:hover {
    border-color: var(--tool-primary);
    color: var(--tool-primary);
    background: var(--tool-primary-light);
    transform: translateY(-1px);
}
.mini-btn.primary {
    background: linear-gradient(135deg, #1a6eff 0%, #0d4fc4 100%);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 14px rgba(26, 110, 255, 0.3);
}
.mini-btn.primary:hover {
    color: #fff;
    background: linear-gradient(135deg, #2f7bff 0%, #1258dd 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(26, 110, 255, 0.4);
}
input[type="text"] {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
    font-size: 13px;
    padding: 9px 12px;
    border: 1.5px solid var(--tool-border);
    border-radius: var(--tool-radius-sm);
    color: var(--tool-text);
    background: #fff;
    outline: none;
    transition: var(--tool-transition);
    width: 100%;
}
input[type="text"]:focus {
    border-color: var(--tool-primary);
    box-shadow: 0 0 0 3px rgba(26, 110, 255, 0.12);
}
input[type="color"] {
    -webkit-appearance: none;
    appearance: none;
    width: 42px; height: 42px;
    padding: 0;
    border: 1.5px solid var(--tool-border);
    border-radius: var(--tool-radius-sm);
    background: none;
    cursor: pointer;
    flex-shrink: 0;
}
input[type="color"]::-webkit-color-swatch-wrapper { padding: 3px; }
input[type="color"]::-webkit-color-swatch { border: none; border-radius: 6px; }
input[type="color"]::-moz-color-swatch { border: none; border-radius: 6px; }

.slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 100px;
    background: linear-gradient(90deg, #e8ecf4, #c7d6f5);
    outline: none;
    cursor: pointer;
}
.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px; height: 20px;
    border-radius: 50%;
    background: linear-gradient(135deg, #1a6eff, #0d4fc4);
    border: 3px solid #fff;
    box-shadow: 0 2px 8px rgba(26, 110, 255, 0.4);
    cursor: pointer;
}
.slider::-moz-range-thumb {
    width: 14px; height: 14px;
    border-radius: 50%;
    background: linear-gradient(135deg, #1a6eff, #0d4fc4);
    border: 3px solid #fff;
    box-shadow: 0 2px 8px rgba(26, 110, 255, 0.4);
    cursor: pointer;
}

/* ===== 1. 色值转换器 ===== */
.converter-grid {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 28px;
    align-items: start;
}
.color-stage { position: sticky; top: 96px; }
.color-preview {
    border-radius: var(--tool-radius);
    min-height: 220px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 1px solid rgba(0, 0, 0, 0.06);
    transition: background 0.25s ease;
    position: relative;
    overflow: hidden;
}
.color-preview::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 30% 20%, rgba(255,255,255,0.25), transparent 60%);
    pointer-events: none;
}
.preview-hex {
    font-family: Consolas, monospace;
    font-size: 28px;
    font-weight: 800;
    letter-spacing: 2px;
    color: #fff;
    text-shadow: 0 1px 8px rgba(0, 0, 0, 0.35);
    position: relative;
    z-index: 1;
}
.preview-name {
    font-size: 13px;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.92);
    text-shadow: 0 1px 4px rgba(0, 0, 0, 0.35);
    position: relative;
    z-index: 1;
    min-height: 18px;
}
.stage-controls {
    display: flex;
    gap: 10px;
    margin-top: 14px;
    flex-wrap: wrap;
}
.picker-wrap {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px 6px 6px;
    border: 1.5px solid var(--tool-border);
    border-radius: var(--tool-radius-sm);
    background: #fff;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    color: var(--tool-text-2);
    transition: var(--tool-transition);
}
.picker-wrap:hover { border-color: var(--tool-primary); color: var(--tool-primary); }
.picker-wrap input[type="color"] { width: 30px; height: 30px; border: none; }

.format-list { display: flex; flex-direction: column; gap: 12px; }
.format-item {
    display: grid;
    grid-template-columns: 92px 1fr 38px;
    align-items: center;
    gap: 12px;
}
.format-label {
    font-size: 12px;
    font-weight: 700;
    color: var(--tool-text-3);
    letter-spacing: 0.5px;
}
.format-copy {
    width: 38px; height: 38px;
    border: 1.5px solid var(--tool-border);
    background: #fff;
    border-radius: var(--tool-radius-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--tool-text-3);
    transition: var(--tool-transition);
}
.format-copy:hover {
    border-color: var(--tool-primary);
    color: var(--tool-primary);
    background: var(--tool-primary-light);
}
.format-copy svg { width: 16px; height: 16px; }
.format-item.invalid input[type="text"] {
    border-color: #dc2626;
    background: #fef2f2;
}

/* ===== 2. 配色方案 ===== */
.harmony-tabs {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}
.ht {
    padding: 8px 18px;
    border-radius: 100px;
    border: 1.5px solid var(--tool-border);
    background: #fff;
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    color: var(--tool-text-2);
    cursor: pointer;
    transition: var(--tool-transition);
}
.ht:hover { border-color: var(--tool-primary); color: var(--tool-primary); }
.ht.active {
    background: linear-gradient(135deg, #1a6eff, #0d4fc4);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 14px rgba(26, 110, 255, 0.3);
}
.harmony-strip { display: flex; gap: 12px; }
.harmony-card {
    flex: 1;
    min-width: 0;
    border-radius: var(--tool-radius-sm);
    overflow: hidden;
    border: 1px solid var(--tool-border);
    background: #fff;
    transition: var(--tool-transition);
    cursor: pointer;
}
.harmony-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--tool-shadow-hover);
}
.hc-color { height: 96px; }
.hc-info { padding: 10px 12px; }
.hc-hex {
    font-family: Consolas, monospace;
    font-size: 13px;
    font-weight: 700;
    color: var(--tool-text);
    display: block;
    margin-bottom: 2px;
}
.hc-role { font-size: 11px; color: var(--tool-text-3); display: block; }
.hc-actions {
    display: flex;
    gap: 6px;
    padding: 0 12px 12px;
}
.hc-btn {
    flex: 1;
    padding: 5px 0;
    font-size: 11px;
    font-weight: 600;
    font-family: inherit;
    border: 1px solid var(--tool-border);
    background: var(--tool-bg-warm);
    border-radius: 6px;
    color: var(--tool-text-2);
    cursor: pointer;
    transition: var(--tool-transition);
}
.hc-btn:hover { border-color: var(--tool-primary); color: var(--tool-primary); background: var(--tool-primary-light); }

/* ===== 3. 明度色阶 ===== */
.shade-group { margin-bottom: 22px; }
.shade-group:last-child { margin-bottom: 0; }
.shade-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--tool-text-2);
    margin-bottom: 10px;
}
.shade-strip { display: flex; gap: 6px; }
.shade-cell {
    flex: 1;
    min-width: 0;
    height: 78px;
    border-radius: 8px;
    border: 1px solid rgba(0, 0, 0, 0.06);
    cursor: pointer;
    position: relative;
    transition: var(--tool-transition);
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 6px;
}
.shade-cell:hover { transform: translateY(-4px); box-shadow: var(--tool-shadow-hover); }
.shade-cell span {
    font-family: Consolas, monospace;
    font-size: 10px;
    font-weight: 700;
    color: rgba(0, 0, 0, 0.55);
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.5);
    opacity: 0;
    transition: var(--tool-transition);
}
.shade-cell:hover span { opacity: 1; }

/* ===== 4. 对比度检测 ===== */
.contrast-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 28px;
    align-items: start;
}
.contrast-controls { display: flex; flex-direction: column; gap: 16px; }
.cc-row label {
    display: block;
    font-size: 12px;
    font-weight: 700;
    color: var(--tool-text-2);
    margin-bottom: 8px;
}
.cc-input { display: flex; gap: 10px; align-items: center; }
.cc-quick { display: flex; gap: 8px; flex-wrap: wrap; }
.cc-quick button {
    width: 34px; height: 34px;
    border-radius: 8px;
    border: 1.5px solid var(--tool-border);
    cursor: pointer;
    transition: var(--tool-transition);
}
.cc-quick button:hover { transform: scale(1.12); border-color: var(--tool-primary); }
.contrast-result {
    background: var(--tool-bg-warm);
    border: 1px solid var(--tool-border);
    border-radius: var(--tool-radius);
    padding: 24px;
}
.contrast-demo {
    border-radius: var(--tool-radius-sm);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 18px;
    border: 1px solid rgba(0, 0, 0, 0.06);
    transition: all 0.25s ease;
}
.demo-large { font-size: 24px; font-weight: 800; }
.demo-normal { font-size: 16px; }
.demo-ui {
    font-size: 13px;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 8px;
    display: inline-block;
    align-self: flex-start;
    border: 1.5px solid currentColor;
}
.contrast-score { display: flex; align-items: baseline; gap: 6px; margin-bottom: 14px; }
.score-num {
    font-size: 44px;
    font-weight: 900;
    color: var(--tool-text);
    line-height: 1;
}
.score-unit { font-size: 18px; font-weight: 700; color: var(--tool-text-3); }
.contrast-grades { display: flex; gap: 10px; flex-wrap: wrap; }
.grade {
    font-size: 12px;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 100px;
}
.grade.pass { background: #dcfce7; color: #166534; }
.grade.fail { background: #fee2e2; color: #991b1b; }

/* ===== 5. 色盲模拟 ===== */
.vision-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.vision-card {
    border: 1px solid var(--tool-border);
    border-radius: var(--tool-radius-sm);
    overflow: hidden;
    background: #fff;
    transition: var(--tool-transition);
}
.vision-card:hover { box-shadow: var(--tool-shadow-hover); transform: translateY(-3px); }
.vc-color { height: 90px; }
.vc-info { padding: 12px 14px; }
.vc-name { font-size: 13px; font-weight: 700; color: var(--tool-text); display: block; }
.vc-desc { font-size: 11px; color: var(--tool-text-3); }
.vc-hex { font-family: Consolas, monospace; font-size: 11px; color: var(--tool-text-3); }

/* ===== 6. 渐变生成 ===== */
.gradient-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 28px;
    align-items: stretch;
}
.gradient-controls { display: flex; flex-direction: column; gap: 16px; }
.gc-row label {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    font-weight: 700;
    color: var(--tool-text-2);
    margin-bottom: 8px;
}
.gc-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.gradient-preview {
    border-radius: var(--tool-radius);
    min-height: 240px;
    border: 1px solid rgba(0, 0, 0, 0.06);
    transition: all 0.25s ease;
}
.code-block {
    margin-top: 18px;
    background: #0f1623;
    color: #7ee787;
    font-family: Consolas, monospace;
    font-size: 13px;
    line-height: 1.7;
    padding: 16px 20px;
    border-radius: var(--tool-radius-sm);
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

/* ===== 7. 调色板 ===== */
.palette-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 18px;
}
.pal-cell {
    flex: 1;
    min-width: 0;
    height: 130px;
    border-radius: var(--tool-radius-sm);
    border: 1px solid rgba(0, 0, 0, 0.06);
    cursor: pointer;
    position: relative;
    transition: var(--tool-transition);
    overflow: hidden;
}
.pal-cell:hover { transform: translateY(-4px); box-shadow: var(--tool-shadow-hover); }
.pal-hex {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    font-family: Consolas, monospace;
    font-size: 11px;
    font-weight: 700;
    text-align: center;
    padding: 4px 0;
    background: rgba(255, 255, 255, 0.75);
    color: #1a1a2e;
    backdrop-filter: blur(4px);
}
.pal-lock {
    position: absolute;
    top: 8px; right: 8px;
    width: 28px; height: 28px;
    border-radius: 8px;
    border: none;
    background: rgba(255, 255, 255, 0.75);
    cursor: pointer;
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--tool-transition);
    backdrop-filter: blur(4px);
}
.pal-lock.locked { background: var(--tool-primary); }
.palette-actions { display: flex; gap: 10px; flex-wrap: wrap; }

/* ===== Toast ===== */
.toast {
    position: fixed;
    left: 50%;
    bottom: 40px;
    transform: translateX(-50%) translateY(20px);
    background: #1a1a2e;
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    padding: 12px 24px;
    border-radius: 100px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 9999;
    pointer-events: none;
}
.toast.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* ==========================================================
   移动端适配（规则与官网首页内联 <style> 完全一致，勿改桌面端）
   ========================================================== */
@media (max-width: 1024px) {
    .converter-grid { grid-template-columns: 1fr; }
    .color-stage { position: static; }
    .contrast-grid { grid-template-columns: 1fr; }
    .gradient-grid { grid-template-columns: 1fr; }
    .vision-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    /* —— 导航：与官网 drill.html 内联规则一致 —— */
    .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0; right: 0;
        background: white;
        flex-direction: column;
        padding: 16px 24px;
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
        gap: 4px;
        border-bottom: 1px solid var(--border);
        z-index: 999;
    }
    .nav-links.active { display: flex; }
    .mobile-toggle { display: flex; }

    /* —— 页脚：与官网 drill.html 内联规则一致 —— */
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }

    .tool-header { padding: 96px 0 36px; }
    .tool-main { padding: 8px 0 56px; }
    .panel { padding: 20px; margin-bottom: 20px; border-radius: 12px; }
    .panel-head h2 { font-size: 17px; }
    .color-preview { min-height: 160px; }
    .preview-hex { font-size: 22px; }
    .format-item { grid-template-columns: 76px 1fr 34px; gap: 8px; }
    .format-copy { width: 34px; height: 34px; }
    .harmony-strip { flex-wrap: wrap; }
    .harmony-card { flex: 1 1 calc(50% - 6px); }
    .hc-color { height: 74px; }
    .shade-strip { flex-wrap: wrap; }
    .shade-cell { flex: 1 1 calc(25% - 5px); height: 64px; }
    .shade-cell span { opacity: 1; font-size: 9px; }
    .vision-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
    .gradient-preview { min-height: 160px; }
    .palette-bar { flex-wrap: wrap; }
    .pal-cell { flex: 1 1 calc(33.33% - 7px); height: 96px; }
    .score-num { font-size: 34px; }
    .gc-actions .mini-btn,
    .palette-actions .mini-btn { flex: 1; justify-content: center; }
    .stage-controls .mini-btn { flex: 1; justify-content: center; }
    .code-block { font-size: 11px; padding: 12px 14px; }
}

@media (max-width: 480px) {
    .vision-grid { grid-template-columns: 1fr; }
    .pal-cell { flex: 1 1 calc(50% - 5px); }
    .harmony-card { flex: 1 1 100%; }
    .shade-cell { flex: 1 1 calc(33.33% - 4px); }
}