/* ==========================================================================
   在线工具通用样式 (assets/web/tools/css/tool.css)
   供 /assets/web/tools/ 下的各工具页面共用
   ========================================================================== */

:root {
    --bg: #f4f6f9;
    --bg-grad-1: rgba(64, 158, 255, 0.10);
    --bg-grad-2: rgba(103, 194, 58, 0.10);
    --panel: #ffffff;
    --panel-2: #f8fafc;
    --text: #2c3e50;
    --text-2: #64748b;
    --text-3: #94a3b8;
    --border: #e2e8f0;
    --border-strong: #cbd5e1;
    --primary: #3095d4;
    --primary-hover: #2380bb;
    --primary-soft: rgba(48, 149, 212, 0.10);
    --success: #2fa84f;
    --success-soft: rgba(47, 168, 79, 0.12);
    --warn: #d98b1f;
    --warn-soft: rgba(217, 139, 31, 0.12);
    --danger: #d9534f;
    --danger-soft: rgba(217, 83, 79, 0.12);
    --code-bg: #f6f8fa;
    --shadow: 0 2px 10px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 8px 28px rgba(15, 23, 42, 0.10);
    --radius: 10px;
    --radius-sm: 7px;
    --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", "Courier New", monospace;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg: #181c27;
        --bg-grad-1: rgba(64, 158, 255, 0.10);
        --bg-grad-2: rgba(103, 194, 58, 0.07);
        --panel: #252d38;
        --panel-2: #1f2733;
        --text: #c9ccd1;
        --text-2: #97a1ad;
        --text-3: #6f7b88;
        --border: #38414e;
        --border-strong: #47525f;
        --primary: #3fa4e0;
        --primary-hover: #5cb4e8;
        --primary-soft: rgba(63, 164, 224, 0.16);
        --success: #4bb96a;
        --success-soft: rgba(75, 185, 106, 0.16);
        --warn: #e0a340;
        --warn-soft: rgba(224, 163, 64, 0.16);
        --danger: #e06c68;
        --danger-soft: rgba(224, 108, 104, 0.16);
        --code-bg: #1b222c;
        --shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
        --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.38);
    }
}

:root[data-theme="dark"] {
    --bg: #181c27;
    --bg-grad-1: rgba(64, 158, 255, 0.10);
    --bg-grad-2: rgba(103, 194, 58, 0.07);
    --panel: #252d38;
    --panel-2: #1f2733;
    --text: #c9ccd1;
    --text-2: #97a1ad;
    --text-3: #6f7b88;
    --border: #38414e;
    --border-strong: #47525f;
    --primary: #3fa4e0;
    --primary-hover: #5cb4e8;
    --primary-soft: rgba(63, 164, 224, 0.16);
    --success: #4bb96a;
    --success-soft: rgba(75, 185, 106, 0.16);
    --warn: #e0a340;
    --warn-soft: rgba(224, 163, 64, 0.16);
    --danger: #e06c68;
    --danger-soft: rgba(224, 108, 104, 0.16);
    --code-bg: #1b222c;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 8px 28px rgba(0, 0, 0, 0.38);
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg);
    background-image:
        radial-gradient(1000px 500px at 0% -10%, var(--bg-grad-1), transparent 60%),
        radial-gradient(900px 500px at 100% 0%, var(--bg-grad-2), transparent 55%);
    background-attachment: fixed;
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    font-size: 15px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

/* ---------------------------------------------------------------- 页头 */
.tool-header {
    position: sticky;
    top: 0;
    z-index: 30;
    background: color-mix(in srgb, var(--panel) 88%, transparent);
    backdrop-filter: saturate(180%) blur(10px);
    border-bottom: 1px solid var(--border);
}

@supports not (background: color-mix(in srgb, red 50%, blue)) {
    .tool-header {
        background: var(--panel);
    }
}

.tool-header-inner {
    max-width: 1180px;
    margin: 0 auto;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 14px;
}

.tool-back {
    flex: none;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text-2);
    text-decoration: none;
    font-size: 13px;
    white-space: nowrap;
    transition: all 0.18s ease;
}

.tool-back:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: var(--primary-soft);
}

.tool-title-wrap {
    flex: 1 1 auto;
    min-width: 0;
}

.tool-title {
    margin: 0;
    font-size: 19px;
    font-weight: 600;
    letter-spacing: 0.01em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.tool-subtitle {
    margin: 1px 0 0;
    font-size: 12.5px;
    color: var(--text-3);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.header-actions {
    flex: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* ---------------------------------------------------------------- 布局 */
.tool-main {
    max-width: 1180px;
    margin: 0 auto;
    padding: 20px;
}

.card {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 16px;
    margin-bottom: 16px;
}

.card:last-child {
    margin-bottom: 0;
}

.card-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin: -2px 0 12px;
    flex-wrap: wrap;
}

.card-title {
    margin: 0;
    font-size: 15px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 7px;
}

.card-title::before {
    content: "";
    width: 3px;
    height: 14px;
    border-radius: 2px;
    background: var(--primary);
}

.row {
    display: flex;
    gap: 14px;
    align-items: flex-start;
}

.col {
    flex: 1 1 0;
    min-width: 0;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
}

@media (max-width: 820px) {

    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: minmax(0, 1fr);
    }

    .row {
        flex-direction: column;
    }

    .tool-main {
        padding: 14px;
    }
}

/* ---------------------------------------------------------------- 表单 */
label.field-label {
    display: block;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--text-2);
    margin-bottom: 5px;
}

.field {
    margin-bottom: 12px;
}

.field:last-child {
    margin-bottom: 0;
}

input[type="text"],
input[type="password"],
input[type="number"],
input[type="search"],
input[type="email"],
input[type="url"],
input[type="tel"],
select,
textarea {
    width: 100%;
    padding: 8px 11px;
    /* 等宽字体的输入框天然比下拉框矮一截，这里统一到同一高度，同一行里才齐平 */
    min-height: 39px;
    font-size: 14px;
    font-family: inherit;
    color: var(--text);
    background: var(--panel-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    outline: none;
    transition: border-color 0.16s ease, box-shadow 0.16s ease;
}

/* 口令框：字距稍微放开一点，遮罩点不至于挤成一团 */
input[type="password"] {
    letter-spacing: 0.06em;
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
input[type="search"]:focus,
input[type="email"]:focus,
input[type="url"]:focus,
input[type="tel"]:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-soft);
}

textarea {
    resize: vertical;
    line-height: 1.55;
}

textarea.mono,
input.mono,
.code {
    font-family: var(--mono);
    font-size: 13px;
}

input[type="range"] {
    width: 100%;
    accent-color: var(--primary);
    margin: 4px 0 0;
}

input[type="color"] {
    width: 44px;
    height: 32px;
    padding: 2px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--panel-2);
    cursor: pointer;
}

input[type="file"] {
    font-size: 13px;
    color: var(--text-2);
}

input[type="checkbox"],
input[type="radio"] {
    accent-color: var(--primary);
    width: 15px;
    height: 15px;
    vertical-align: -2px;
    cursor: pointer;
}

.check-line {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13.5px;
    color: var(--text-2);
    cursor: pointer;
    user-select: none;
    margin: 0 14px 8px 0;
}

/* ---------------------------------------------------------------- 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 15px;
    font-size: 13.5px;
    font-family: inherit;
    font-weight: 500;
    line-height: 1.4;
    color: var(--text);
    background: var(--panel-2);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-sm);
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.16s ease;
    user-select: none;
}

.btn:hover:not(:disabled) {
    color: var(--primary);
    border-color: var(--primary);
    background: var(--primary-soft);
}

.btn:active:not(:disabled) {
    transform: translateY(1px);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-primary {
    color: #fff;
    background: var(--primary);
    border-color: var(--primary);
}

.btn-primary:hover:not(:disabled) {
    color: #fff;
    background: var(--primary-hover);
    border-color: var(--primary-hover);
}

.btn-success {
    color: #fff;
    background: var(--success);
    border-color: var(--success);
}

.btn-success:hover:not(:disabled) {
    color: #fff;
    filter: brightness(1.08);
    background: var(--success);
    border-color: var(--success);
}

.btn-danger {
    color: #fff;
    background: var(--danger);
    border-color: var(--danger);
}

.btn-danger:hover:not(:disabled) {
    color: #fff;
    filter: brightness(1.08);
    background: var(--danger);
    border-color: var(--danger);
}

.btn-sm {
    padding: 5px 10px;
    font-size: 12.5px;
}

.btn-block {
    width: 100%;
}

.btn-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    padding: 0;
    font-size: 15px;
    color: var(--text-2);
    background: var(--panel-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.16s ease;
}

.icon-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: var(--primary-soft);
}

/* ---------------------------------------------------------------- 提示 / 状态 */
.hint {
    font-size: 12.5px;
    color: var(--text-3);
    line-height: 1.6;
    margin: 6px 0 0;
}

.hint a {
    color: var(--primary);
}

.status {
    display: none;
    align-items: flex-start;
    gap: 8px;
    padding: 9px 12px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    line-height: 1.55;
    margin-top: 10px;
    white-space: pre-wrap;
    word-break: break-word;
}

.status.show {
    display: flex;
}

.status.ok {
    color: var(--success);
    background: var(--success-soft);
}

.status.err {
    color: var(--danger);
    background: var(--danger-soft);
}

.status.warn {
    color: var(--warn);
    background: var(--warn-soft);
}

.status.info {
    color: var(--primary);
    background: var(--primary-soft);
}

.badge {
    display: inline-block;
    padding: 1px 7px;
    border-radius: 999px;
    font-size: 11.5px;
    font-weight: 600;
    line-height: 1.7;
    color: var(--primary);
    background: var(--primary-soft);
    white-space: nowrap;
}

.badge.ok {
    color: var(--success);
    background: var(--success-soft);
}

.badge.err {
    color: var(--danger);
    background: var(--danger-soft);
}

.badge.warn {
    color: var(--warn);
    background: var(--warn-soft);
}

.badge.gray {
    color: var(--text-2);
    background: var(--panel-2);
    border: 1px solid var(--border);
}

.stat-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 18px;
    font-size: 13px;
}

.stat-list .stat {
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.stat-list .stat b {
    font-weight: 600;
    color: var(--text);
    font-family: var(--mono);
    font-size: 13.5px;
}

.stat-list .stat span {
    color: var(--text-3);
    font-size: 12.5px;
}

/* ---------------------------------------------------------------- 进度条 */
.progress {
    height: 8px;
    border-radius: 999px;
    background: var(--panel-2);
    border: 1px solid var(--border);
    overflow: hidden;
}

.progress>i {
    display: block;
    height: 100%;
    width: 0;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--primary), var(--success));
    transition: width 0.2s ease;
}

/* ---------------------------------------------------------------- 棋盘格 / 图片预览 */
.checker {
    background-image:
        linear-gradient(45deg, #d5d9de 25%, transparent 25%, transparent 75%, #d5d9de 75%),
        linear-gradient(45deg, #d5d9de 25%, transparent 25%, transparent 75%, #d5d9de 75%);
    background-size: 18px 18px;
    background-position: 0 0, 9px 9px;
    background-color: #fff;
}

.canvas-wrap {
    position: relative;
    display: block;
    width: 100%;
    overflow: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 10px;
    text-align: center;
    min-height: 180px;
    max-height: 62vh;
}

.canvas-wrap canvas {
    max-width: 100%;
    vertical-align: middle;
    border-radius: 4px;
    cursor: crosshair;
    touch-action: none;
}

.canvas-wrap.busy::after {
    content: "处理中…";
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.35);
    color: #fff;
    font-size: 14px;
    letter-spacing: 0.1em;
}

.drop-zone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 26px 18px;
    border: 2px dashed var(--border-strong);
    border-radius: var(--radius);
    background: var(--panel-2);
    color: var(--text-2);
    text-align: center;
    cursor: pointer;
    transition: all 0.18s ease;
}

.drop-zone:hover,
.drop-zone.dragover {
    border-color: var(--primary);
    background: var(--primary-soft);
    color: var(--primary);
}

.drop-zone .dz-title {
    font-size: 14px;
    font-weight: 600;
}

.drop-zone .dz-sub {
    font-size: 12.5px;
    color: var(--text-3);
}

/* ---------------------------------------------------------------- 表格 / 列表 */
.kv-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.kv-table th,
.kv-table td {
    padding: 7px 10px;
    border-bottom: 1px solid var(--border);
    text-align: left;
    vertical-align: top;
}

.kv-table th {
    color: var(--text-2);
    font-weight: 600;
    background: var(--panel-2);
    white-space: nowrap;
}

.kv-table td.mono {
    font-family: var(--mono);
    font-size: 12.5px;
    word-break: break-all;
}

/* ---------------------------------------------------------------- 树形视图 (JSON) */
.json-tree {
    font-family: var(--mono);
    font-size: 13px;
    line-height: 1.75;
    overflow: auto;
    max-height: 62vh;
    padding: 10px 12px;
    background: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    white-space: nowrap;
}

.json-tree ul {
    list-style: none;
    margin: 0;
    padding-left: 18px;
    border-left: 1px dashed var(--border);
}

.json-tree>ul {
    padding-left: 2px;
    border-left: none;
}

.jt-node>.jt-line {
    display: block;
    border-radius: 4px;
    padding: 0 3px;
}

.jt-node>.jt-line:hover {
    background: var(--primary-soft);
}

.jt-toggle {
    display: inline-block;
    width: 14px;
    color: var(--text-3);
    cursor: pointer;
    user-select: none;
    text-align: center;
}

.jt-toggle:hover {
    color: var(--primary);
}

.jt-key {
    color: #b0347d;
    cursor: pointer;
}

:root[data-theme="dark"] .jt-key {
    color: #e08fc0;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .jt-key {
        color: #e08fc0;
    }
}

.jt-colon {
    color: var(--text-3);
}

.jt-str {
    color: #1a7f37;
    word-break: break-all;
}

.jt-num {
    color: #0550ae;
}

.jt-bool {
    color: #8250df;
}

.jt-null {
    color: var(--text-3);
}

:root[data-theme="dark"] .jt-str {
    color: #7ee787;
}

:root[data-theme="dark"] .jt-num {
    color: #79c0ff;
}

:root[data-theme="dark"] .jt-bool {
    color: #d2a8ff;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .jt-str {
        color: #7ee787;
    }

    :root:not([data-theme="light"]) .jt-num {
        color: #79c0ff;
    }

    :root:not([data-theme="light"]) .jt-bool {
        color: #d2a8ff;
    }
}

.jt-meta {
    color: var(--text-3);
    font-size: 11.5px;
}

.jt-node.jt-collapsed>ul {
    display: none;
}

.jt-node.jt-hit>.jt-line {
    background: var(--warn-soft);
}

/* ---------------------------------------------------------------- Toast */
#tool-toast {
    position: fixed;
    left: 50%;
    bottom: 34px;
    transform: translate(-50%, 12px);
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    pointer-events: none;
}

#tool-toast .toast-item {
    padding: 9px 18px;
    border-radius: 999px;
    font-size: 13.5px;
    color: #fff;
    background: rgba(30, 41, 59, 0.92);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.22s ease, transform 0.22s ease;
    max-width: 80vw;
    text-align: center;
}

#tool-toast .toast-item.show {
    opacity: 1;
    transform: translateY(0);
}

#tool-toast .toast-item.ok {
    background: rgba(47, 168, 79, 0.95);
}

#tool-toast .toast-item.err {
    background: rgba(217, 83, 79, 0.95);
}

/* ---------------------------------------------------------------- 其它 */
.hidden {
    display: none !important;
}

.text-c {
    text-align: center;
}

.mt-0 {
    margin-top: 0;
}

.mt-8 {
    margin-top: 8px;
}

.mt-12 {
    margin-top: 12px;
}

.mt-16 {
    margin-top: 16px;
}

.mb-0 {
    margin-bottom: 0;
}

.nowrap {
    white-space: nowrap;
}

.footer-note {
    max-width: 1180px;
    margin: 4px auto 30px;
    padding: 0 20px;
    font-size: 12px;
    color: var(--text-3);
    text-align: center;
}

.footer-note a {
    color: var(--text-2);
}

/* 滚动条 */
::-webkit-scrollbar {
    width: 9px;
    height: 9px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-strong);
    border-radius: 999px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-3);
}