/* ==========================================================================
   D4 算法实验室 - 暗黑魔幻 CSS 视觉系统
   ========================================================================== */

/* 全局重置与基础变量 */
:root {
    --bg-darker: #07080a;
    --bg-main: #0c0e12;
    --bg-card: rgba(18, 22, 28, 0.75);
    --bg-input: rgba(10, 12, 16, 0.85);
    
    /* 核心调色盘 - 暗黑4主题 */
    --color-red: #ff4b4b;
    --color-red-hover: #ff6b6b;
    --color-red-glow: rgba(255, 75, 75, 0.25);
    
    --color-mint: #00ffcc;
    --color-mint-hover: #33ffdd;
    --color-mint-glow: rgba(0, 255, 204, 0.25);
    
    --color-blue: #4b8bff;
    --color-blue-hover: #75a7ff;
    --color-blue-glow: rgba(75, 139, 255, 0.25);

    --color-gold: #cfa85c;
    --color-gold-dark: #8e6f34;
    --color-gold-glow: rgba(207, 168, 92, 0.2);
    
    --border-color: #21262d;
    --border-color-hover: #30363d;
    
    --text-white: #ffffff;
    --text-gray-light: #d0d7de;
    --text-gray: #8b949e;
    --text-gray-dark: #484f58;

    --font-heading: 'Cinzel', serif;
    --font-body: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-darker);
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(154, 28, 28, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(75, 139, 255, 0.05) 0%, transparent 40%);
    color: var(--text-gray-light);
    font-family: var(--font-body);
    -webkit-font-smoothing: antialiased;
    height: 100vh;
    overflow: hidden;
}

/* APP 整体布局 */
.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
    overflow: hidden;
}

/* ==========================================================================
   侧边栏样式 (Sidebar)
   ========================================================================== */
.sidebar {
    width: 280px;
    background-color: #0b0d10;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 25px 0;
    z-index: 10;
    flex-shrink: 0;
}

.sidebar-header {
    display: flex;
    align-items: center;
    padding: 0 25px 25px 25px;
    border-bottom: 1px solid rgba(48, 54, 61, 0.4);
}

.logo-icon {
    font-size: 2.2rem;
    margin-right: 15px;
    filter: drop-shadow(0 0 10px rgba(207, 168, 92, 0.3));
}

.logo-text h1 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    color: var(--text-white);
    letter-spacing: 1px;
    font-weight: 800;
}

.logo-text span {
    font-size: 0.8rem;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 600;
}

.sidebar-nav {
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 0 15px;
    flex-grow: 1;
}

.nav-item {
    background: none;
    border: 1px solid transparent;
    color: var(--text-gray);
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 14px 20px;
    border-radius: 10px;
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    text-align: left;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.nav-item svg {
    transition: transform 0.3s ease;
}

.nav-item:hover {
    color: var(--text-white);
    background-color: rgba(255, 255, 255, 0.03);
    border-color: rgba(48, 54, 61, 0.3);
}

.nav-item:hover svg {
    transform: scale(1.1);
}

.nav-item.active {
    color: var(--text-white);
    background: linear-gradient(90deg, rgba(207, 168, 92, 0.15) 0%, rgba(12, 14, 18, 0) 100%);
    border-left: 3px solid var(--color-gold);
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
    padding-left: 17px;
    box-shadow: inset 5px 0 15px rgba(207, 168, 92, 0.05);
}

.nav-item.active svg {
    color: var(--color-gold);
    filter: drop-shadow(0 0 5px rgba(207, 168, 92, 0.4));
}

.sidebar-footer {
    padding: 20px 25px 0 25px;
    border-top: 1px solid rgba(48, 54, 61, 0.4);
    font-size: 0.8rem;
    color: var(--text-gray-dark);
}

.sidebar-footer p {
    color: var(--text-gray);
    margin-bottom: 4px;
}

/* ==========================================================================
   主区域布局
   ========================================================================== */
.main-content {
    flex-grow: 1;
    background-color: var(--bg-main);
    overflow-y: auto;
    padding: 30px 40px;
    height: 100vh;
}

.tab-panel {
    display: none;
    animation: fadeIn 0.4s ease-out forwards;
}

.tab-panel.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 板块头部 */
.panel-header {
    margin-bottom: 25px;
}

.panel-header h2 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--text-white);
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 15px;
    letter-spacing: 1px;
}

.panel-header h2 .badge {
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 6px;
    background-color: rgba(255, 75, 75, 0.15);
    border: 1px solid var(--color-red);
    color: var(--color-red);
    box-shadow: 0 0 10px rgba(255, 75, 75, 0.1);
}

.panel-header h2 .badge.mint {
    background-color: rgba(0, 255, 204, 0.15);
    border-color: var(--color-mint);
    color: var(--color-mint);
    box-shadow: 0 0 10px rgba(0, 255, 204, 0.1);
}

.panel-header h2 .badge.blue {
    background-color: rgba(75, 139, 255, 0.15);
    border-color: var(--color-blue);
    color: var(--color-blue);
    box-shadow: 0 0 10px rgba(75, 139, 255, 0.1);
}

.subtitle {
    font-size: 0.95rem;
    color: var(--text-gray);
    margin-top: 8px;
    line-height: 1.5;
}

/* 网格布局 (左右侧结构) */
.grid-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 30px;
    align-items: start;
}

/* ==========================================================================
   表单与输入侧 (Input Section)
   ========================================================================== */
.input-card {
    background-color: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.card-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
    letter-spacing: 0.5px;
}

.form-group-section {
    margin-bottom: 24px;
}

.form-group-section:last-child {
    margin-bottom: 0;
}

.section-sub-title {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 15px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    font-size: 0.85rem;
    color: var(--text-gray-light);
    font-weight: 500;
}

.form-group input[type="number"],
.form-group select {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-white);
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 10px 14px;
    width: 100%;
    outline: none;
    transition: all 0.25s ease;
}

.form-group input[type="number"]:focus,
.form-group select:focus {
    border-color: var(--color-gold);
    box-shadow: 0 0 10px var(--color-gold-glow);
    background-color: rgba(12, 14, 18, 0.95);
}

.helper-text {
    font-size: 0.75rem;
    color: var(--text-gray);
    line-height: 1.4;
    margin-top: 4px;
}

.block {
    display: block;
}
.mb-10 {
    margin-bottom: 10px;
}
.mt-15 {
    margin-top: 15px;
}
.mt-20 {
    margin-top: 20px;
}

/* 滑块样式 (Range Inputs) */
.slider-container {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
}

.slider-container input[type="range"] {
    flex-grow: 1;
    -webkit-appearance: none;
    appearance: none;
    background: var(--border-color);
    height: 6px;
    border-radius: 3px;
    outline: none;
    cursor: pointer;
}

.slider-container input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-gold);
    box-shadow: 0 0 8px var(--color-gold-glow);
    transition: transform 0.1s ease;
}

.slider-container input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

/* ==========================================================================
   输出与指标看板 (Display Section)
   ========================================================================== */
.display-container {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

/* 指标列 (Metric Row) */
.metric-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.metric-row.mini {
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
}

.metric-box {
    background-color: rgba(22, 27, 34, 0.9);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    transition: transform 0.25s ease, border-color 0.25s ease;
}

.metric-box:hover {
    transform: translateY(-2px);
    border-color: var(--border-color-hover);
}

.metric-label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-gray);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.metric-value {
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--text-white);
    letter-spacing: -0.5px;
}

/* 颜色辅助类 */
.metric-value.text-red { color: var(--color-red); }
.metric-value.text-blue { color: var(--color-blue); }
.metric-value.text-mint { color: var(--color-mint); }

.metric-desc {
    font-size: 0.72rem;
    color: var(--text-gray-dark);
    margin-top: 6px;
    line-height: 1.3;
}

/* 超大期望面板 (Hero Box) */
.hero-box {
    background-color: rgba(22, 27, 34, 0.95);
    border-radius: 16px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
}

.hero-box::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; height: 4px;
}

/* 不同派系的发光顶边 */
.hero-box.red-accent::before {
    background: linear-gradient(90deg, transparent, var(--color-red), transparent);
    box-shadow: 0 2px 20px var(--color-red-glow);
}
.hero-box.blue-accent::before {
    background: linear-gradient(90deg, transparent, var(--color-blue), transparent);
    box-shadow: 0 2px 20px var(--color-blue-glow);
}
.hero-box.mint-accent::before {
    background: linear-gradient(90deg, transparent, var(--color-mint), transparent);
    box-shadow: 0 2px 20px var(--color-mint-glow);
}

.hero-label {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-gray-light);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-value {
    font-family: var(--font-body);
    font-size: 3.4rem;
    font-weight: 900;
    color: var(--text-white);
    margin: 10px 0;
}

.hero-box.red-accent .hero-value {
    color: var(--text-white);
    text-shadow: 0 0 20px rgba(255, 75, 75, 0.4);
}
.hero-box.blue-accent .hero-value {
    color: var(--text-white);
    text-shadow: 0 0 20px rgba(75, 139, 255, 0.4);
}
.hero-box.mint-accent .hero-value {
    color: var(--color-mint);
    text-shadow: 0 0 25px rgba(0, 255, 204, 0.5);
}

.hero-value.small {
    font-size: 2.5rem;
}

.hero-equation {
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--text-gray);
    background-color: rgba(0, 0, 0, 0.2);
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.03);
}

.hero-desc {
    font-size: 0.85rem;
    color: var(--text-gray);
    margin-top: 5px;
}

/* ==========================================================================
   图表排版 (Charts Container)
   ========================================================================== */
.charts-row {
    display: flex;
    gap: 25px;
    flex-wrap: wrap;
}

.chart-box {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    flex-grow: 1;
    flex-basis: 0;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
    min-height: 320px;
}

.chart-box.w-35 { flex-grow: 35; }
.chart-box.w-50 { flex-grow: 50; }
.chart-box.w-65 { flex-grow: 65; }
.ehp-showcases.w-50 { flex-grow: 50; width: 50%; display: flex; flex-direction: column; gap: 20px; }

.chart-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-gray-light);
    margin-bottom: 18px;
    border-left: 3px solid var(--color-gold);
    padding-left: 10px;
    letter-spacing: 0.5px;
}

.chart-title.text-mint { border-left-color: var(--color-mint); }

.chart-wrapper {
    position: relative;
    width: 100%;
    height: 250px;
}

/* ==========================================================================
   S13 优化器专用排版 (Optimizer styles)
   ========================================================================== */
.gear-slot-inputs {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 15px;
}

.gear-item-card {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 14px;
}

.gear-item-card h5 {
    color: var(--text-white);
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.gear-cols {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.sub-form-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.sub-lbl {
    font-size: 0.72rem;
    color: var(--text-gray);
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sub-form-group input {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-white);
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 700;
    padding: 6px 10px;
    width: 100%;
    outline: none;
}

.sub-form-group input:focus {
    border-color: var(--color-gold);
}

.opt-section-box {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.box-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 20px;
}

.box-title.text-mint { color: var(--color-mint); }

.action-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 12px;
}

.action-header .box-title {
    margin-bottom: 0;
}

/* 按钮样式 (Buttons) */
.btn {
    background-color: var(--color-gold);
    border: none;
    border-radius: 8px;
    color: var(--bg-darker);
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 0.88rem;
    font-weight: 800;
    padding: 10px 20px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 15px rgba(207, 168, 92, 0.2);
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(207, 168, 92, 0.35);
}

.btn-mint {
    background-color: var(--color-mint);
    box-shadow: 0 4px 15px rgba(0, 255, 204, 0.15);
}

.btn-mint:hover {
    background-color: var(--color-mint-hover);
    box-shadow: 0 6px 20px rgba(0, 255, 204, 0.3);
}

/* 手动选择模拟排 (Manual sim row) */
.manual-simulator-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.manual-sim-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: rgba(255, 255, 255, 0.01);
    border: 1px solid rgba(255, 255, 255, 0.02);
    border-radius: 8px;
    padding: 10px 16px;
}

.sim-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-gray-light);
}

.radio-group {
    display: flex;
    gap: 15px;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.82rem;
    cursor: pointer;
    color: var(--text-gray);
    transition: color 0.2s ease;
}

.radio-group label:hover {
    color: var(--text-white);
}

.radio-group input[type="radio"] {
    accent-color: var(--color-gold);
    cursor: pointer;
}

.radio-group label:has(input[type="radio"]:checked) {
    color: var(--text-white);
    font-weight: 700;
}

/* 寻优结果推荐展示卡 */
.slots-recommendation {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 12px;
}

.rec-card {
    background-color: rgba(0, 255, 204, 0.03);
    border: 1.5px dashed rgba(0, 255, 204, 0.3);
    border-radius: 10px;
    padding: 12px 6px;
    text-align: center;
    transition: all 0.3s ease;
}

.rec-card:hover {
    background-color: rgba(0, 255, 204, 0.06);
    border-style: solid;
    border-color: var(--color-mint);
    box-shadow: 0 0 15px rgba(0, 255, 204, 0.1);
}

.rec-slot {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-gray);
    margin-bottom: 6px;
}

.rec-hit {
    font-size: 0.88rem;
    font-weight: 800;
    color: var(--text-white);
}

.rec-hit.highlight {
    color: var(--color-mint);
    text-shadow: 0 0 5px rgba(0, 255, 204, 0.2);
}

.font-gold [data-testid="stMetricValue"] {
    color: var(--color-gold) !important;
}

/* ==========================================================================
   术士与坚韧样式 (Warlock & Toughness styles)
   ========================================================================== */
.steady-breakdown-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.breakdown-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}

.breakdown-item:last-child {
    border-bottom: none;
}

.b-lbl {
    font-size: 0.85rem;
    color: var(--text-gray);
}

.b-val {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-white);
}

.accumulation-stats {
    background-color: rgba(255, 75, 75, 0.03);
    border: 1px solid rgba(255, 75, 75, 0.15);
    border-radius: 10px;
    padding: 15px;
    text-align: center;
}

.accum-lbl {
    display: block;
    font-size: 0.8rem;
    color: var(--text-gray);
    margin-bottom: 5px;
}

.accum-val {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--color-red);
    text-shadow: 0 0 10px var(--color-red-glow);
}

.tips-box {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 16px 20px;
    font-size: 0.85rem;
    color: var(--text-gray);
    line-height: 1.6;
}

.tips-box b {
    color: var(--text-white);
}

.res-input-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
}

.form-group.mini {
    margin-bottom: 8px;
}

.form-group.mini label {
    font-size: 0.72rem;
    color: var(--text-gray);
}

.form-group.mini input {
    padding: 6px 10px;
    font-size: 0.85rem;
}

/* 表格样式 (Data Tables) */
.table-container {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.table-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-gray-light);
    margin-bottom: 18px;
    border-left: 3px solid var(--color-blue);
    padding-left: 10px;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    text-align: left;
}

.data-table th, 
.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid rgba(48, 54, 61, 0.4);
}

.data-table th {
    font-weight: 700;
    color: var(--text-gray);
    background-color: rgba(0, 0, 0, 0.15);
}

.data-table th:first-child,
.data-table td:first-child {
    border-top-left-radius: 8px;
    border-bottom-left-radius: 8px;
}

.data-table th:last-child,
.data-table td:last-child {
    border-top-right-radius: 8px;
    border-bottom-right-radius: 8px;
}

.data-table tbody tr {
    transition: background-color 0.2s ease;
}

.data-table tbody tr:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

.data-table td {
    color: var(--text-gray-light);
    font-weight: 500;
}

/* ==========================================================================
   响应式调整 (Responsive Breakpoints)
   ========================================================================== */
@media (max-width: 1200px) {
    .metric-row, 
    .metric-row.mini {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1024px) {
    .app-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding: 15px 20px;
    }
    
    .sidebar-header {
        padding-bottom: 15px;
    }
    
    .sidebar-nav {
        margin-top: 15px;
        flex-direction: row;
        flex-wrap: wrap;
        padding: 0;
    }
    
    .nav-item {
        padding: 10px 16px;
        font-size: 0.88rem;
    }
    
    .nav-item.active {
        border-left: 1px solid transparent;
        border-bottom: 3px solid var(--color-gold);
        border-radius: 0;
        background: linear-gradient(0deg, rgba(207, 168, 92, 0.1) 0%, rgba(12, 14, 18, 0) 100%);
    }

    .sidebar-footer {
        display: none;
    }
    
    .main-content {
        padding: 20px;
    }
    
    .grid-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .metric-row, 
    .metric-row.mini,
    .slots-recommendation {
        grid-template-columns: 1fr;
    }
    
    .charts-row {
        flex-direction: column;
    }
    
    .chart-box, 
    .ehp-showcases.w-50 {
        width: 100% !important;
        flex-basis: auto;
    }
}