/* ===== 原有 CSS 变量 + 通用样式 ===== */
:root {
    --bg: #0f172a;
    --panel: #111827;
    --text: #e5e7eb;
    --muted: #94a3b8;
    --border: #334155;
    --accent: #38bdf8;
    --accent2: #22c55e;
    --danger: #ef4444;
    --warning: #f59e0b;
    --chip: #1e293b;
    --btn: #334155;
    --radius: 14px;
    --shadow: 0 20px 60px rgba(0, 0, 0, .35);
    --cb-size: 28px;
    --cb-radius: 8px;
    --cb-bg: #0b1220;
    --cb-border: #475569;
    --cb-checked-bg: var(--accent);
    --cb-checked-border: var(--accent);
    --cb-hover-border: #60a5fa;
    --cb-focus-ring: rgba(56, 189, 248, .35);
    --cb-check-mark: #0f172a;
}
* {
    box-sizing: border-box;
}
body {
    margin: 0;
    min-height: 100vh;
    padding: 24px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
    background: linear-gradient(180deg, #0f172a 0%, #111827 100%);
    color: var(--text);
    display: grid;
    place-items: center;
}
.card {
    width: min(1200px, 100%);
    background: rgba(17, 24, 39, .92);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 24px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(10px);
}

/* ===== 顶部 ===== */
.top-section {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px 20px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 16px;
}
.top-left h1 {
    margin: 0 0 4px;
    font-size: 28px;
    letter-spacing: -.3px;
}
.top-left .sub {
    margin: 0;
    color: var(--muted);
    line-height: 1.5;
    font-size: 14px;
}
.mode-switch {
    display: inline-flex;
    background: var(--chip);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 4px;
    gap: 4px;
    flex-shrink: 0;
}
.mode-btn {
    appearance: none;
    border: 0;
    border-radius: 10px;
    padding: 10px 20px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    color: var(--muted);
    background: transparent;
    transition: all .2s ease;
}
.mode-btn.active {
    background: var(--accent);
    color: #0f172a;
}
.mode-btn:hover:not(.active) {
    color: var(--text);
}

/* ===== 主体：左右两栏 ===== */
.main-layout {
    display: flex;
    gap: 20px;
    align-items: stretch;
}
.left-column {
    flex: 0 0 42%;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.right-column {
    flex: 1 1 58%;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

/* ===== 面板 ===== */
.panel {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    background: rgba(15, 23, 42, .55);
}
.panel-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--muted);
    margin-bottom: 8px;
    letter-spacing: .2px;
}
.panel-label .tag {
    color: var(--muted);
    font-weight: 400;
    font-size: 13px;
}

/* ===== 控件 ===== */
.stepper {
    display: flex;
    align-items: stretch;
    gap: 10px;
}
.stepper input {
    flex: 1;
    min-width: 0;
    border: 1px solid var(--border);
    background: #0b1220;
    color: var(--text);
    border-radius: 12px;
    padding: 14px 14px;
    outline: none;
    font-size: 18px;
    text-align: center;
    transition: border-color .2s, box-shadow .2s;
}
.stepper input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, .15);
}
.stepper-btn {
    width: 56px;
    min-width: 56px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--btn);
    color: white;
    font-size: 24px;
    font-weight: 700;
    cursor: pointer;
    user-select: none;
    transition: transform .08s ease, opacity .2s ease, background .2s ease, border-color .2s;
}
.stepper-btn:hover {
    opacity: .92;
    background: #3b4a5f;
}
.stepper-btn:active {
    transform: translateY(1px);
}
.stepper-btn:focus-visible {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, .15);
}
.hint {
    margin-top: 10px;
    font-size: 13px;
    color: var(--muted);
    line-height: 1.6;
}
.hint.warn {
    color: var(--warning);
}

/* ===== 复选框 ===== */
.checks {
    display: flex;
    flex-wrap: wrap;
    gap: 14px 24px;
}
.check {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    user-select: none;
    color: var(--text);
    font-size: 15px;
    cursor: pointer;
    transition: color .2s;
}
.check:hover .cb__control {
    border-color: var(--cb-hover-border);
}
.check:hover .cb__label {
    color: #f1f5f9;
}
.check input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}
.cb__control {
    flex: 0 0 var(--cb-size);
    width: var(--cb-size);
    height: var(--cb-size);
    border: 2px solid var(--cb-border);
    border-radius: var(--cb-radius);
    background: var(--cb-bg);
    display: grid;
    place-items: center;
    transition: all .18s cubic-bezier(.34, 1.56, .64, 1);
    position: relative;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, .3);
}
.cb__control .cb__checkmark {
    opacity: 0;
    transform: scale(0.6) rotate(-10deg);
    transition: all .18s cubic-bezier(.34, 1.56, .64, 1);
    color: var(--cb-check-mark);
    font-size: calc(var(--cb-size)*.55);
    font-weight: 700;
    line-height: 1;
    text-shadow: 0 1px 2px rgba(0, 0, 0, .1);
    pointer-events: none;
}
.check input[type="checkbox"]:checked+.cb__control {
    background: var(--cb-checked-bg);
    border-color: var(--cb-checked-border);
    box-shadow: 0 0 0 4px rgba(56, 189, 248, .15), inset 0 2px 4px rgba(0, 0, 0, .1);
}
.check input[type="checkbox"]:checked+.cb__control .cb__checkmark {
    opacity: 1;
    transform: scale(1) rotate(0deg);
}
.check input[type="checkbox"]:focus-visible+.cb__control {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}
.check input[type="checkbox"]:disabled+.cb__control {
    opacity: .5;
    cursor: not-allowed;
    filter: grayscale(.4);
}
.check input[type="checkbox"]:disabled~.cb__label {
    opacity: .5;
    cursor: not-allowed;
}
.cb__label {
    transition: color .2s;
    line-height: 1.3;
}
.cb__label small {
    color: var(--muted);
    font-size: 12px;
    font-weight: 400;
}

.advanced-tag {
    display: inline-block;
    font-size: 11px;
    font-weight: 600;
    color: #a78bfa;
    background: rgba(167, 139, 250, .12);
    border: 1px solid rgba(167, 139, 250, .25);
    border-radius: 6px;
    padding: 2px 8px;
    margin-left: 6px;
    vertical-align: middle;
}

/* ===== 输入框 ===== */
input[type="text"],
textarea {
    width: 100%;
    border: 1px solid var(--border);
    background: #0b1220;
    color: var(--text);
    border-radius: 10px;
    padding: 12px 14px;
    outline: none;
    font-size: 16px;
    transition: border-color .2s, box-shadow .2s;
}
input[type="text"]:focus,
textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, .15);
}

/* ===== 按钮 ===== */
button {
    appearance: none;
    border: 0;
    border-radius: 10px;
    padding: 12px 16px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    color: white;
    background: var(--accent);
    transition: transform .08s ease, opacity .2s ease, background .2s;
}
button:hover {
    opacity: .92;
}
button:active {
    transform: translateY(1px);
}
button:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}
.secondary {
    background: #334155;
}
.secondary:hover {
    background: #475569;
}
.success {
    background: var(--accent2);
}
.success:hover {
    background: #2dd4bf;
}
.danger {
    background: var(--danger);
}
.danger:hover {
    background: #f87171;
}

/* ===== 结果区 ===== */
.result-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    margin-bottom: 12px;
}
.chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 999px;
    background: var(--chip);
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 13px;
    user-select: none;
}
.toolbar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.strength-panel {
    margin-bottom: 12px;
    padding: 14px;
    border-radius: 12px;
    background: rgba(15, 23, 42, .7);
    border: 1px solid var(--border);
}
.strength-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}
.strength-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--muted);
}
.strength-score {
    font-size: 14px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 999px;
    background: rgba(148, 163, 184, .1);
}
.strength-bar-bg {
    height: 8px;
    background: var(--chip);
    border-radius: 999px;
    overflow: hidden;
}
.strength-bar-fill {
    height: 100%;
    width: 0%;
    border-radius: 999px;
    transition: width .4s cubic-bezier(.34, 1.56, .64, 1), background .3s ease;
}
.strength-details {
    margin-top: 10px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
    font-size: 13px;
    color: var(--muted);
}
.strength-weak {
    color: #ef4444;
    background: rgba(239, 68, 68, .15);
}
.strength-fair {
    color: #f59e0b;
    background: rgba(245, 158, 11, .15);
}
.strength-good {
    color: #38bdf8;
    background: rgba(56, 189, 248, .15);
}
.strength-strong {
    color: #22c55e;
    background: rgba(34, 197, 94, .15);
}
.strength-excellent {
    color: #a78bfa;
    background: rgba(167, 139, 250, .15);
}
.bar-weak {
    background: linear-gradient(90deg, #ef4444, #f87171);
}
.bar-fair {
    background: linear-gradient(90deg, #f59e0b, #fbbf24);
}
.bar-good {
    background: linear-gradient(90deg, #38bdf8, #60a5fa);
}
.bar-strong {
    background: linear-gradient(90deg, #22c55e, #4ade80);
}
.bar-excellent {
    background: linear-gradient(90deg, #a78bfa, #c4b5fd);
}

.output-list {
    display: grid;
    gap: 10px;
    margin-top: 4px;
}
.out-item {
    display: flex;
    gap: 10px;
    align-items: center;
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: #0b1220;
    overflow: hidden;
}
.pw {
    flex: 1;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    word-break: break-all;
    white-space: pre-wrap;
    line-height: 1.5;
    color: #f8fafc;
}
.mini {
    padding: 8px 10px;
    font-size: 13px;
    border-radius: 8px;
    background: #334155;
    flex: 0 0 auto;
    border: 0;
    color: white;
    cursor: pointer;
    transition: background .2s, transform .08s;
}
.mini:hover {
    background: #475569;
}
.mini:active {
    transform: translateY(1px);
}

.stats {
    margin-top: 10px;
    color: var(--muted);
    font-size: 13px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px 16px;
}
.badge {
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 4px 10px;
    background: rgba(148, 163, 184, .08);
}
.error {
    color: #fca5a5;
    margin-top: 10px;
    min-height: 20px;
    font-size: 14px;
}

.hidden {
    display: none !important;
}

/* ===== 响应式 ===== */
@media(max-width: 860px) {
    .main-layout {
        flex-direction: column;
    }
    .left-column {
        flex: 1 1 auto;
    }
    .right-column {
        flex: 1 1 auto;
    }
    .top-section {
        flex-direction: column;
        align-items: stretch;
    }
    .top-left h1 {
        font-size: 24px;
    }
    .mode-switch {
        align-self: flex-start;
    }
}
@media(max-width: 600px) {
    :root {
        --cb-size: 26px;
        --cb-radius: 7px;
    }
    .card {
        padding: 16px;
    }
    .checks {
        gap: 10px 16px;
    }
    .check {
        font-size: 14px;
        gap: 10px;
    }
    .stepper-btn {
        width: 48px;
        min-width: 48px;
        font-size: 20px;
    }
    .stepper input {
        font-size: 16px;
        padding: 12px 10px;
    }
    .toolbar {
        gap: 8px;
    }
    .toolbar button {
        padding: 10px 12px;
        font-size: 14px;
        flex: 1 1 auto;
    }
    .top-left h1 {
        font-size: 20px;
    }
    .out-item {
        flex-wrap: wrap;
    }
    .mini {
        flex: 1 1 auto;
        text-align: center;
    }
}
@media(max-width: 400px) {
    :root {
        --cb-size: 24px;
        --cb-radius: 6px;
    }
    .check {
        font-size: 13px;
        gap: 8px;
    }
    .cb__control .cb__checkmark {
        font-size: calc(var(--cb-size)*.5);
    }
    .mode-btn {
        padding: 8px 14px;
        font-size: 13px;
    }
}

/* ===== 日间主题样式 — 森林莫兰迪色 ===== */
body.light-theme {
    /* 主色变量 */
    --bg: #e5efe0;
    --panel: #f5f8f2;
    --text: #2c3e2f;
    --muted: #4a5b4c;
    --border: #bcc9b7;
    --chip: #dae3d5;
    --btn: #a0b69a;
    --shadow: 0 20px 60px rgba(0, 0, 0, .08);

    /* 强调色改为柔和绿（莫兰迪风格） */
    --accent: #6b8f6b;
    --accent2: #5a7d5a;
    --warning: #b8a35c;      /* 警告色也调暗一些 */
    --danger: #b56a6a;

    background: linear-gradient(180deg, #e5efe0 0%, #d4dfd0 100%);
}

/* 面板和卡片 */
body.light-theme .card {
    background: rgba(245, 248, 242, .92);
    border-color: var(--border);
}
body.light-theme .panel {
    background: rgba(235, 242, 230, .8);
    border-color: var(--border);
}

/* 输入框和输出框 */
body.light-theme .stepper input,
body.light-theme input[type="text"],
body.light-theme textarea,
body.light-theme .out-item {
    background: #ffffff;
    border-color: var(--border);
    color: var(--text);
}

/* Chip 标签 */
body.light-theme .chip {
    background: var(--chip);
    border-color: var(--border);
    color: var(--text);
}

/* 复选框 */
body.light-theme .cb__control {
    background: #ffffff;
    border-color: var(--border);
}
body.light-theme .cb__control {
    background: #ffffff;
    border-color: var(--border);
}

/* 模式切换按钮 */
body.light-theme .mode-btn {
    color: var(--muted);
}
body.light-theme .mode-btn.active {
    background: var(--accent);
    color: #ffffff;  /* 激活时文字白色，更清晰 */
}

/* 提示文字 */
body.light-theme .hint {
    color: var(--muted);
}

/* 强度面板 */
body.light-theme .strength-panel {
    background: rgba(235, 242, 230, .8);
    border-color: var(--border);
}

/* 统计徽章 */
body.light-theme .badge {
    background: rgba(148, 163, 184, .1);
}

/* ---- 修复复选框 hover 文字变白的问题 ---- */
body.light-theme .check:hover .cb__label {
    color: #1a2b1d;  /* 更深的森林色 */
}

/* ---- 密码文本颜色加深 ---- */
body.light-theme .pw {
    color: var(--text);
}

/* ---- 按钮颜色适配（保持与强调色统一） ---- */
body.light-theme button {
    background: var(--accent);
}
body.light-theme button.success {
    background: var(--accent2);
}
body.light-theme button.secondary {
    background: var(--btn);
}
body.light-theme button:hover {
    opacity: .85;
}