/*
 * iokays 账户中心 · 视觉体系 2026-11-02 更新
 * 依据 material-design-skill 流程与已验证的概念稿（material-design-lab-20261030）。
 * 配色沿用官方 Material Color Utilities 0.3.0 SchemeMonochrome（种子 #171717、浅色、对比度 0）生成的角色；
 * 28px 大表面圆角、56px 输入高度、48px 触控目标为项目选择，不是官方 token。
 * 全部类名与结构钩子（id、data-*、body class）保持不变，模板与 JS 无需配合修改。
 */
:root {
    color-scheme: light;
    --md-sys-color-primary: #000000; --md-sys-color-on-primary: #e2e2e2;
    --md-sys-color-surface: #f9f9f9; --md-sys-color-on-surface: #1b1b1b;
    --md-sys-color-on-surface-variant: #474747; --md-sys-color-surface-container: #eeeeee;
    --md-sys-color-outline: #777777; --md-sys-color-outline-variant: #c6c6c6;
    --md-sys-color-error: #ba1a1a; --md-sys-color-on-error: #ffffff;
    --md-sys-color-error-container: #ffdad6; --md-sys-color-on-error-container: #410002;
    --color-bg: var(--md-sys-color-surface); --color-surface: #fff; --color-text: var(--md-sys-color-on-surface);
    --color-muted: var(--md-sys-color-on-surface-variant); --color-border: #e5e5e5;
    --color-brand: var(--md-sys-color-primary); --color-brand-hover: #303030;
    --color-error: var(--md-sys-color-error); --color-success: #15803d;
    --color-control-border: var(--md-sys-color-outline); --color-soft: var(--md-sys-color-surface-container);
    --color-on-brand: var(--md-sys-color-on-primary); --color-focus: var(--md-sys-color-primary); --color-active: #000000;
    --identity-surface: #222222; --identity-text: #ffffff; --identity-muted: #c6c6c6;
    --identity-chip: #3b3b3b; --identity-divider: #515151;
    --radius-card: 28px; --radius-control: 12px; --radius-pill: 9999px;
    --shadow-card: 0 18px 46px -40px rgba(15, 23, 42, .24), 0 5px 16px -15px rgba(15, 23, 42, .1);
    --shadow-pop: 0 24px 80px -24px rgba(23, 23, 23, .35);
    --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px;
    --space-6: 24px; --space-8: 32px; --space-12: 48px;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Consolas, monospace;
    --motion-duration: 150ms; --motion-easing: cubic-bezier(.31, .94, .34, 1);
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--color-bg); color: var(--color-text); font: 400 1rem/1.5 var(--font-sans); min-height: 100vh; display: flex; flex-direction: column; -webkit-font-smoothing: antialiased; }
button, input { font: inherit; }
a { color: inherit; text-decoration: none; }
button { color: inherit; cursor: pointer; }
button:disabled { cursor: not-allowed; }
:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 4px; }
::selection { background: #ececec; }
h1, h2, h3, p { margin: 0; }
button, summary { transition: background-color var(--motion-duration) var(--motion-easing), border-color var(--motion-duration) var(--motion-easing); }

/* Header / footer */
.site-header, .site-footer { width: min(1248px, calc(100% - 96px)); margin: 0 auto; }
.site-header { min-height: 96px; display: flex; justify-content: space-between; align-items: center; gap: 24px; border-bottom: 1px solid var(--color-border); }
.site-footer { min-height: 96px; display: flex; justify-content: space-between; align-items: center; gap: 16px; border-top: 1px solid var(--color-border); color: var(--color-muted); font-size: .75rem; }
.workspace-header { position: sticky; top: 0; z-index: 40; width: 100%; height: 64px; min-height: 64px; padding: 0; background: rgba(255, 255, 255, .86); -webkit-backdrop-filter: blur(12px) saturate(1.3); backdrop-filter: blur(12px) saturate(1.3); border-bottom: 1px solid var(--color-border); }
.workspace-header-inner { width: min(1248px, calc(100% - 96px)); height: 100%; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.workspace-header .header-actions form { margin: 0; }
html { scroll-padding-top: 80px; }
.brand { display: inline-flex; align-items: center; gap: 12px; font-size: 1.5rem; font-weight: 700; letter-spacing: -1px; min-height: 48px; }
.brand-mark { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 12px; background: var(--color-brand); color: var(--color-on-brand); font: italic 700 29px/1 Georgia, serif; padding-right: 2px; }
.brand-divider { width: 1px; height: 20px; margin: 0 4px 0 10px; background: var(--md-sys-color-outline-variant); }
.brand-product, .header-caption { font-size: .875rem; color: var(--color-muted); }
.header-actions { display: flex; align-items: center; gap: 16px; }
.app-switcher { position: relative; }
.app-switcher summary { display: flex; align-items: center; gap: 6px; min-height: 48px; cursor: pointer; color: var(--color-muted); font-size: .875rem; list-style: none; }
.app-switcher summary::-webkit-details-marker { display: none; }
.app-switcher summary::after { content: ""; width: 6px; height: 6px; border: solid currentColor; border-width: 0 1.5px 1.5px 0; transform: rotate(45deg); }
.app-switcher[open] summary::after { transform: rotate(225deg); }
.app-switcher nav { position: absolute; top: 100%; right: 0; min-width: 140px; padding: 4px; background: white; border: 1px solid var(--color-border); border-radius: var(--radius-control); box-shadow: var(--shadow-pop); }
.app-switcher ul { list-style: none; margin: 0; padding: 0; }
.app-switcher a { display: flex; align-items: center; min-height: 44px; padding: 0 12px; border-radius: 8px; font-size: .875rem; }
.app-switcher a:hover, .app-switcher a:focus-visible { background: var(--color-soft); }
.skip-link { position: absolute; left: 20px; top: -100px; background: #fff; padding: 12px 20px; z-index: 10; border: 1px solid var(--color-border); border-radius: 12px; }
.skip-link:focus { top: 12px; }

/* Buttons */
.button, .control { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 48px; padding: 11px 22px; border: 1px solid transparent; border-radius: var(--radius-pill); background: #fff; color: var(--color-text); font-size: .875rem; line-height: 1.5; font-weight: 600; text-align: center; }
.button { width: 100%; }
.button-primary, .control-primary { background: var(--color-brand); color: var(--color-on-brand); border-color: var(--color-brand); }
.button-primary:hover, .control-primary:hover { background: var(--color-brand-hover); border-color: var(--color-brand-hover); }
.button-primary:active, .control-primary:active { background: var(--color-active); border-color: var(--color-active); }
.button-secondary { background: transparent; border-color: var(--md-sys-color-outline); }
.button-secondary:hover { background: var(--color-soft); border-color: var(--color-text); }
.button-secondary:active { background: #e6e6e6; }
.button:hover, .control:hover { border-color: var(--color-text); }
.control-danger { color: var(--color-error); border-color: rgba(180, 35, 24, .35); }
.control-danger:hover { background: #fef2f2; }
.control-quiet { border-color: transparent; background: transparent; color: var(--color-muted); min-height: 48px; }
.control-quiet:hover { background: var(--color-soft); border-color: transparent; }
.control-block { width: 100%; min-height: 48px; }
.button:disabled, .control:disabled { background: #e5e5e5; color: #616161; border-color: transparent; }
.data-table .control { min-height: 48px; padding: 6px 14px; font-size: .8125rem; }
.provider-list { display: flex; flex-direction: column; gap: 12px; }

/* Fields */
.field { margin-bottom: 20px; }
.field label { display: block; margin-bottom: 8px; font-size: .875rem; font-weight: 500; }
.field input, .input { width: 100%; min-height: 56px; height: auto; padding: 14px 16px; border: 1px solid var(--color-control-border); border-radius: var(--radius-control); color: var(--color-text); background: #fff; min-width: 0; }
.field input::placeholder, .input::placeholder { color: #616161; opacity: 1; }
.field input:hover, .input:hover { border-color: var(--color-text); }
.field input:focus, .input:focus { outline: 2px solid var(--color-focus); outline-offset: -2px; }
.field input[aria-invalid="true"] { border-color: var(--color-error); }
.field input[aria-invalid="true"]:focus { outline-color: var(--color-error); }
.field-error { color: var(--color-error); font-size: .75rem; }
.field-hint { font-size: .75rem; color: var(--color-muted); margin: 8px 0 0; line-height: 1.6; }
.sms-code-row { display: flex; align-items: flex-end; flex-wrap: wrap; gap: 12px; margin-bottom: 20px; }
.sms-code-row .field { flex: 1 1 120px; min-width: 0; margin-bottom: 0; }
#send-code-btn { width: auto; margin-top: auto; flex: 0 1 auto; padding: 11px 16px; font-size: .8125rem; min-height: 56px; border-radius: var(--radius-control); }
.code-input { letter-spacing: 2px; font-family: var(--font-mono); }

/* Notices */
.notice { padding: 14px 16px; border: 1px solid var(--color-border); background: var(--color-soft); border-radius: 16px; font-size: .875rem; line-height: 1.6; margin-bottom: 20px; overflow-wrap: anywhere; }
.notice-error { background: #fef2f2; color: var(--color-error); border-color: #f5d5d8; }
.notice-success { background: #eff7f2; color: var(--color-success); border-color: #d3e8db; }
.notice-warning { color: #754a12; background: #fff8eb; border-color: #eed6ac; }
.feedback-region:empty { display: none; }
.section-divider { display: flex; align-items: center; gap: 12px; color: var(--color-muted); font-size: .75rem; margin: 28px 0 16px; }
.section-divider::before, .section-divider::after { content: ""; height: 1px; flex: 1; background: var(--color-border); }
.card-note { text-align: center; color: var(--color-muted); font-size: .75rem; margin: 28px 0 0; }
.token-form { margin-top: 36px; }
.token-title { font-size: 1.25rem; font-weight: 600; margin-bottom: 20px; }

/* Login */
.auth-layout { width: min(1248px, calc(100% - 96px)); margin: auto; padding: 44px 0 64px; display: grid; grid-template-columns: 1fr 460px; gap: 80px; align-items: center; }
.eyebrow { font-size: .75rem; font-weight: 600; letter-spacing: .08em; color: var(--color-muted); }
.auth-intro h1 { font-size: clamp(32px, 3.6vw, 46px); font-weight: 600; line-height: 1.3; letter-spacing: -1.2px; margin: 20px 0; }
.auth-intro p { color: var(--color-muted); font-size: 1rem; line-height: 1.9; }
.identity-visual { width: 280px; margin: 42px 0 36px; text-align: center; }
.identity-hub { display: grid; place-items: center; margin: auto; width: 64px; height: 64px; border: 1px solid #dcdcdc; border-radius: 20px 20px 20px 6px; background: var(--color-soft); color: var(--color-text); font: italic 700 32px/1 Georgia, serif; }
.identity-connections { display: flex; gap: 16px; padding-top: 24px; position: relative; }
.identity-connections::before { content: ""; position: absolute; height: 24px; border-left: 1px solid #dcdcdc; left: 50%; top: 0; }
.identity-connections span { flex: 1; border: 1px solid #e5e5e5; border-radius: 12px; padding: 14px 8px; color: var(--color-muted); font-size: .75rem; }
.intro-note { color: var(--color-muted); font-size: .75rem; }
.auth-card { background: #fff; padding: 36px; border: 1px solid var(--color-border); border-radius: var(--radius-card); box-shadow: var(--shadow-card); }
.card-heading h2 { margin: 10px 0 8px; font-size: 1.75rem; line-height: 1.35; letter-spacing: -.4px; font-weight: 600; }
.card-heading p { color: var(--color-muted); margin: 0 0 26px; font-size: .875rem; }
.auth-tabs { display: flex; border-bottom: 1px solid var(--color-border); margin-bottom: 28px; gap: 22px; }
.auth-tabs button { background: none; border: 0; border-bottom: 2px solid transparent; color: var(--color-muted); padding: 12px 0; cursor: pointer; font-size: .875rem; white-space: nowrap; min-height: 48px; }
.auth-tabs button[aria-selected="true"] { color: var(--color-text); border-bottom-color: var(--color-text); font-weight: 600; }
.auth-tabs button:hover { color: var(--color-text); }
.provider-section { margin-top: 8px; }

/* Task flows (consent / error) */
.flow-layout { flex: 1; width: 100%; display: grid; place-items: center; padding: 40px 24px 64px; }
.flow-card { width: min(560px, 100%); padding: 36px; border: 1px solid var(--color-border); border-radius: var(--radius-card); background: #fff; box-shadow: var(--shadow-card); }
.flow-card h1 { font-size: 1.75rem; line-height: 1.35; font-weight: 600; margin: 10px 0 14px; }
.flow-description { color: var(--color-muted); margin: 0 0 28px; line-height: 1.8; overflow-wrap: anywhere; font-size: .9375rem; }
.authorization-target { margin: 0 0 24px; padding: 16px; background: var(--color-soft); border-radius: 12px; }
.authorization-target p { margin: 6px 0 0; overflow-wrap: anywhere; }
.result-symbol { width: 56px; height: 56px; display: grid; place-items: center; border-radius: 20px 20px 20px 6px; font-size: 28px; margin-bottom: 24px; }
.result-success { color: var(--color-success); background: #eff7f2; }
.result-error { color: var(--color-error); background: #fef2f2; }
.scope-list { border: 0; padding: 0; margin: 24px 0; min-width: 0; }
.scope-list legend { font-weight: 600; font-size: .875rem; margin-bottom: 12px; }
.scope-item { display: flex; align-items: flex-start; gap: 12px; padding: 16px; border: 1px solid var(--color-border); border-radius: 16px; margin-bottom: 10px; overflow-wrap: anywhere; cursor: pointer; }
.scope-item:hover { border-color: var(--color-text); }
.scope-item input { width: 20px; height: 20px; flex-shrink: 0; margin: 3px 0; accent-color: var(--color-text); }
.scope-item strong { font-size: .875rem; }
.scope-description { display: block; color: var(--color-muted); font-size: .75rem; margin-top: 4px; }
.scope-approved { background: var(--color-soft); cursor: default; }
.scope-approved > .tag { margin-left: auto; flex-shrink: 0; }
.deny-form { margin-top: 12px; }
.application-name { color: var(--color-text); }

/* Workspace shell */
.workspace-layout { display: grid; grid-template-columns: 208px minmax(0, 1fr); width: 100%; flex: 1; }
.workspace-sidebar { padding: 32px 16px; border-right: 1px solid var(--color-border); background: #fff; }
.sidebar-label { display: block; color: var(--color-muted); font-size: .6875rem; letter-spacing: .08em; padding: 0 14px 16px; }
.workspace-sidebar nav { display: grid; gap: 6px; }
.workspace-sidebar nav a { padding: 12px 14px; border-radius: 12px; font-size: .875rem; color: var(--color-muted); min-height: 48px; display: flex; align-items: center; }
.workspace-sidebar nav a:hover { background: var(--color-soft); color: var(--color-text); }
.workspace-sidebar nav a[aria-current="page"] { background: var(--color-soft); color: var(--color-text); font-weight: 600; }
.sidebar-note { font-size: .75rem; color: var(--color-muted); padding: 24px 14px; line-height: 1.9; }
.workspace-main { padding: 36px 40px 48px; width: 100%; max-width: 1500px; min-width: 0; }
.page-container { width: min(1248px, calc(100% - 96px)); margin: 0 auto; padding: 48px 0 64px; flex: 1; }
.page-heading { margin-bottom: 40px; }
.page-title { font-size: 2.25rem; font-weight: 600; line-height: 1.23; margin: 0 0 12px; letter-spacing: -.035em; }
.page-heading .eyebrow + .page-title { margin-top: 12px; }
.page-description { color: var(--color-muted); font-size: 1rem; }
.metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-bottom: 28px; }
.metric { border: 1px solid var(--color-border); background: #fff; border-radius: var(--radius-card); padding: 20px 24px; }
.metric-label { color: var(--color-muted); font-size: .75rem; }
.metric-value { font-size: 1.75rem; line-height: 1.4; font-weight: 600; margin-top: 6px; font-variant-numeric: tabular-nums; }

/* Surfaces, tables and shared components */
.surface { background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-card); min-width: 0; }
.surface-body { padding: 28px; min-width: 0; }
.section-title { font-size: 1.5rem; font-weight: 600; margin: 0 0 24px; letter-spacing: -.025em; }
.section-spacing { margin-bottom: 32px; }
.section-heading { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 24px; }
.section-heading .section-title { margin: 0; }
.section-summary { color: var(--color-muted); font-size: .75rem; margin-top: 16px; }
.filter-form { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-end; }
.filter-form .field { flex: 1; min-width: min(200px, 100%); margin: 0; }
.filter-actions { flex-shrink: 0; }
.input { max-width: 100%; }
.table-region { overflow-x: auto; border: 1px solid var(--color-border); border-radius: 16px; }
.data-table { width: 100%; border-collapse: collapse; text-align: left; font-size: .9375rem; white-space: nowrap; }
.data-table th { background: var(--color-soft); color: var(--color-muted); font-weight: 600; font-size: .75rem; }
.data-table th, .data-table td { padding: 16px; border-bottom: 1px solid var(--color-border); vertical-align: middle; }
.data-table tbody tr:last-child td { border-bottom: 0; }
.data-table tbody tr:hover { background: #fafafa; }
.tag { display: inline-flex; align-items: center; gap: 4px; padding: 3px 8px; border: 1px solid var(--color-border); border-radius: 7px; background: #fff; color: var(--color-muted); font-size: .75rem; font-weight: 500; line-height: 20px; white-space: nowrap; }
.tag-brand { color: var(--color-text); background: #ebebeb; border-color: transparent; }
.tag-success { color: var(--color-success); background: #eaf6ee; border-color: transparent; }
.tag-error { color: var(--color-error); background: #fef2f2; border-color: transparent; }
.tag-warning { color: #754a12; background: #fff5df; border-color: transparent; }
.tag-list { display: flex; flex-wrap: wrap; gap: 5px; max-width: 280px; white-space: normal; }
.mono { font-family: var(--font-mono); font-size: .875rem; }
.muted { color: var(--color-muted); }
.small { font-size: .75rem; }
.emphasis { font-weight: 600; }
.inline-form { display: inline; }
.empty-state { text-align: center; color: var(--color-muted); font-size: .875rem; padding: 48px 20px; border: 1px dashed #d9d9d9; border-radius: 16px; background: #fff; }
.pagination { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; margin-top: 20px; }
.pagination-links { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; }
.page-link { display: inline-grid; place-items: center; min-width: 40px; min-height: 40px; border: 1px solid var(--color-border); border-radius: 12px; padding: 6px 10px; font-size: .8125rem; }
.page-link:hover { background: var(--color-soft); color: var(--color-text); }
.page-active { color: var(--color-text); background: var(--color-soft); border-color: #dcdcdc; font-weight: 600; }
.page-disabled { opacity: .45; pointer-events: none; cursor: default; }
.page-counter { display: none; }
.detail-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.detail-label { color: var(--color-muted); font-size: .75rem; margin-bottom: 6px; }
.detail-value { overflow-wrap: anywhere; }
.profile-avatar { grid-column: 1 / -1; margin-bottom: 8px; }
.avatar-image { width: 36px; height: 36px; border-radius: 12px; background: var(--color-soft); color: var(--color-text); display: grid; place-items: center; overflow: hidden; font-weight: 600; }
.avatar-image img { width: 100%; height: 100%; object-fit: cover; }
.avatar-large { width: 64px; height: 64px; flex: 0 0 64px; border-radius: 16px; font-size: 1.75rem; }
.identity-person > .avatar { flex: 0 0 64px; }
.inline-content { display: flex; align-items: center; gap: 6px; }
.overview-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-bottom: 28px; }
.overview-item { padding: 28px; background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-card); transition: border-color var(--motion-duration) var(--motion-easing), box-shadow var(--motion-duration) var(--motion-easing); }
.overview-item:hover { border-color: #dcdcdc; box-shadow: var(--shadow-card); }
.overview-index { color: var(--color-muted); font-size: .6875rem; letter-spacing: .08em; }
.overview-item h2 { font-size: 1.375rem; font-weight: 600; margin: 14px 0 8px; }
.overview-item p { color: var(--color-muted); font-size: .875rem; margin: 0 0 24px; }
.overview-link { color: var(--color-text); font-size: .875rem; font-weight: 600; }
.overview-link:hover { text-decoration: underline; }

/* 我的账号：身份面板 + 凭证工作区（2026-11-02 概念稿布局） */
.account-layout { display: grid; grid-template-columns: 304px minmax(0, 1fr); align-items: start; gap: 40px; }
.identity-column { min-width: 0; }
.identity-card { padding: 24px; background: var(--identity-surface); color: var(--identity-text); border-radius: var(--radius-card); }
.identity-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.identity-label { font-size: .875rem; color: var(--identity-muted); }
.identity-top .tag { background: var(--identity-chip); color: #fff; border-color: transparent; }
.identity-person { display: flex; align-items: center; gap: 16px; margin: 32px 0; }
.identity-person .avatar-image { background: #eeeeee; color: #222; }
.identity-name { font-size: 1.5rem; line-height: 1.35; font-weight: 550; overflow-wrap: anywhere; margin: 0; }
.identity-sub { color: var(--identity-muted); font-size: .75rem; margin-top: 6px; }
.identity-person > div:last-child { min-width: 0; }
.identity-code { border-top: 1px solid var(--identity-divider); padding-top: 16px; }
.identity-code .detail-label { color: var(--identity-muted); }
.identity-code code { display: block; margin-top: 8px; font: 400 .875rem/1.65 var(--font-mono); letter-spacing: .02em; overflow-wrap: anywhere; }
.identity-caption { display: flex; align-items: center; gap: 8px; color: var(--identity-muted); font-size: .75rem; line-height: 1.5; margin-top: 28px; }
.account-details { padding: 16px 8px 0; }
.account-details summary { display: flex; align-items: center; justify-content: space-between; min-height: 48px; padding: 8px 0; font-size: .875rem; font-weight: 600; cursor: pointer; list-style: none; }
.account-details summary::-webkit-details-marker { display: none; }
.account-details summary::after { content: "›"; color: var(--color-muted); transition: transform var(--motion-duration) var(--motion-easing); }
.account-details[open] summary::after { transform: rotate(90deg); }
.account-details dl { margin: 4px 0 0; }
.account-details dl > div { margin: 0 0 16px; }
.account-details dt { color: var(--color-muted); font-size: .75rem; }
.account-details dd { margin: 5px 0 0; font-size: .875rem; overflow-wrap: anywhere; }
.credentials { min-width: 0; }
.credentials > .section-heading { align-items: flex-start; margin-bottom: 24px; }
.credentials .section-description { margin-top: 5px; color: var(--color-muted); font-size: .875rem; }
.credential-group + .credential-group { margin-top: 32px; }

/* Dialogs */
.dialog { width: min(520px, calc(100% - 32px)); max-height: calc(100dvh - 48px); padding: 32px; border: 0; border-radius: var(--radius-card); background: var(--md-sys-color-surface); color: var(--color-text); box-shadow: var(--shadow-pop); overflow-y: auto; overscroll-behavior: contain; }
.dialog::backdrop { background: rgba(23, 23, 23, .32); }
.dialog[open] { animation: dialog-enter var(--motion-duration) var(--motion-easing); }
@keyframes dialog-enter { from { opacity: 0; } to { opacity: 1; } }
.dialog-content { padding: 0; }
.dialog-content h2, .dialog h2 { font-size: 1.5rem; line-height: 1.35; margin: 0 0 18px; font-weight: 600; letter-spacing: -.025em; }
.dialog-content .eyebrow + h2 { margin-top: 10px; }
.dialog-content p { color: var(--color-muted); font-size: .875rem; line-height: 1.65; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 28px; }
.dialog-actions .control { min-width: 0; }

/* Responsive */
@media (min-width: 900px) {
    .auth-layout:has(#register-tab-panel:not([hidden])) {
        grid-template-columns: minmax(0, 1fr) minmax(460px, 560px);
        gap: 32px;
        padding-block: 20px;
    }
    .auth-card:has(#register-tab-panel:not([hidden])) { padding: 24px; }
    #registerForm { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
    #registerForm .field { margin: 0; }
    #registerForm > .field-error, #registerForm > button { grid-column: 1 / -1; }
}

@media (max-width: 1080px) {
    .site-header:not(.workspace-header), .workspace-header-inner, .site-footer, .auth-layout, .page-container { width: calc(100% - 64px); }
    .auth-layout { grid-template-columns: 1fr 400px; gap: 36px; }
    .account-layout { grid-template-columns: 264px minmax(0, 1fr); gap: 28px; }
    .identity-card { padding: 22px; }
    .identity-person { flex-direction: column; align-items: flex-start; gap: 16px; }
    .surface-body { padding: 24px; }
}
@media (max-width: 900px) { .workspace-layout { grid-template-columns: 176px minmax(0, 1fr); } .workspace-main { padding: 28px 24px; } .auth-intro h1 { font-size: 34px; } .identity-visual { width: 240px; } }
@media (max-width: 800px) {
    .account-layout { grid-template-columns: minmax(0, 1fr); gap: 32px; }
    .identity-column { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
    .identity-person { flex-direction: row; margin: 20px 0; }
    .identity-caption { display: none; }
}
@media (max-width: 740px) {
    .site-header:not(.workspace-header), .workspace-header-inner, .site-footer, .auth-layout, .page-container { width: calc(100% - 40px); }
    .site-header:not(.workspace-header), .site-footer { min-height: 80px; }
    .header-caption { display: none; }
    .brand { gap: 9px; font-size: 1.375rem; }
    .brand-product, .brand-divider { display: none; }
    .workspace-header-inner { gap: 12px; }
    .workspace-header .header-actions { gap: 0; }
    .workspace-header .control-quiet { padding-inline: 10px; }
    .workspace-header .brand { font-size: 1.25rem; }
    .auth-layout { display: block; width: min(488px, 100%); padding: 24px 0 40px; }
    .auth-intro { display: none; }
    .auth-card { padding: 28px; }
    .workspace-layout { display: block; }
    .workspace-sidebar { padding: 12px 16px; border-right: 0; border-bottom: 1px solid var(--color-border); }
    .sidebar-label, .sidebar-note { display: none; }
    .workspace-sidebar nav { display: flex; flex-wrap: wrap; gap: 4px; }
    .workspace-sidebar nav a { padding: 10px; font-size: .8125rem; min-height: 44px; }
    .workspace-main, .page-container { padding: 24px 0 36px; }
    .page-title { font-size: 2rem; }
    .metrics { gap: 8px; }
    .metric { padding: 14px 12px; }
    .metric-value { font-size: 1.375rem; }
    .surface-body { padding: 18px; }
    .section-heading { align-items: flex-start; flex-direction: column; gap: 12px; }
    .section-title { font-size: 1.375rem; }
    .overview-grid, .detail-grid { grid-template-columns: 1fr; }
    .overview-item { padding: 24px; }
    .page-counter { display: inline-grid; } .page-number { display: none; }
    .flow-layout { padding: 24px 16px 40px; }
    .flow-card { padding: 26px 22px; } .flow-card h1 { font-size: 1.5rem; }
    .identity-column { display: block; }
    .identity-person { margin: 20px 0; gap: 16px; }
    .identity-card { padding: 20px 24px; }
    .dialog { padding: 24px; }
    .dialog h2, .dialog-content h2 { font-size: 1.375rem; }
}
@media (max-width: 380px) {
    .site-header:not(.workspace-header), .workspace-header-inner, .site-footer, .auth-layout, .page-container { width: calc(100% - 32px); }
    .auth-card { padding: 22px; }
    .auth-tabs { gap: 16px; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { transition: none !important; animation: none !important; }
}
@media (forced-colors: active) {
    .button, .control, .tag, .identity-card, .surface, .auth-card, .flow-card, .scope-item, .dialog { border: 1px solid CanvasText; }
    .auth-tabs button[aria-selected="true"] { outline: 2px solid Highlight; outline-offset: -4px; }
    .identity-card, .identity-code code, .identity-label, .identity-sub, .identity-caption { color: CanvasText; }
    :focus-visible { outline-color: Highlight; }
    .dialog::backdrop { background: Canvas; opacity: .75; }
}

/*
 * Native Accounts controls mapped to selected Material Web tokens; these
 * are not official Material Web components.
 *
 * Official evidence (Material 3 v0.192, Material Web source):
 * https://github.com/material-components/material-web/blob/main/tokens/versions/v0_192/_md-comp-filled-button.scss
 * https://github.com/material-components/material-web/blob/main/tokens/versions/v0_192/_md-comp-outlined-button.scss
 * https://github.com/material-components/material-web/blob/main/tokens/versions/v0_192/_md-comp-outlined-text-field.scss
 * https://github.com/material-components/material-web/blob/main/tokens/versions/v0_192/_md-sys-state.scss
 * https://github.com/material-components/material-web/blob/main/tokens/versions/v0_192/_md-sys-typescale.scss
 * State-layer opacities updated 2026-11-02 to the current M3 system tokens
 * (hover .08 / focus .10 / pressed .10, release 2026-10-13_06-10-19); the
 * v0.192 links above remain the historical implementation pin.
 *
 * The 48px touch target, 56px field height, 12px field radius, system font
 * and white field surface are explicit project choices; official filled and
 * outlined button height is 40px.
 */
:root {
    --accounts-m3-state-hover: 8%;
    --accounts-m3-state-focus: 10%;
    --accounts-m3-state-pressed: 10%;
    --accounts-m3-disabled-container: 12%;
    --accounts-m3-disabled-label: 38%;
    --accounts-m3-button-label-size: 0.875rem;
    --accounts-m3-button-label-line-height: 1.25rem;
    --accounts-m3-button-label-tracking: 0.00625rem;
    --accounts-m3-input-size: 1rem;
    --accounts-m3-input-line-height: 1.5rem;
    --accounts-m3-input-tracking: 0.03125rem;
}

/* Filled buttons: state layer over the brand container, focus ring kept external. */
:is(.button-primary, .control-primary):not(:disabled):hover {
    background-image: linear-gradient(color-mix(in srgb, var(--md-sys-color-on-primary) var(--accounts-m3-state-hover), transparent),
                                      color-mix(in srgb, var(--md-sys-color-on-primary) var(--accounts-m3-state-hover), transparent));
}
:is(.button-primary, .control-primary):not(:disabled):focus-visible {
    background-image: linear-gradient(color-mix(in srgb, var(--md-sys-color-on-primary) var(--accounts-m3-state-focus), transparent),
                                      color-mix(in srgb, var(--md-sys-color-on-primary) var(--accounts-m3-state-focus), transparent));
}
:is(.button-primary, .control-primary):not(:disabled):active {
    background-image: linear-gradient(color-mix(in srgb, var(--md-sys-color-on-primary) var(--accounts-m3-state-pressed), transparent),
                                      color-mix(in srgb, var(--md-sys-color-on-primary) var(--accounts-m3-state-pressed), transparent));
}
:is(.button-primary, .control-primary):disabled {
    opacity: 1;
    color: color-mix(in srgb, var(--md-sys-color-on-surface) var(--accounts-m3-disabled-label), transparent);
    background: color-mix(in srgb, var(--md-sys-color-on-surface) var(--accounts-m3-disabled-container), transparent);
    border-color: transparent;
    background-image: none;
}

/* Outlined secondary buttons: state layer derived from content color. */
.button-secondary:not(:disabled):hover {
    background: color-mix(in srgb, var(--md-sys-color-on-surface) var(--accounts-m3-state-hover), transparent);
}
.button-secondary:not(:disabled):focus-visible {
    background: color-mix(in srgb, var(--md-sys-color-on-surface) var(--accounts-m3-state-focus), transparent);
}
.button-secondary:not(:disabled):active {
    background: color-mix(in srgb, var(--md-sys-color-on-surface) var(--accounts-m3-state-pressed), transparent);
}
.button-secondary:disabled {
    opacity: 1;
    color: color-mix(in srgb, var(--md-sys-color-on-surface) var(--accounts-m3-disabled-label), transparent);
    border-color: color-mix(in srgb, var(--md-sys-color-on-surface) var(--accounts-m3-disabled-container), transparent);
    background: transparent;
}

/* Field focus: one 2px boundary, shared by pointer and keyboard interaction. */
.field input:not(:disabled):hover, .input:not(:disabled):hover { border-color: var(--md-sys-color-on-surface); }
.field input:not(:disabled):focus, .input:not(:disabled):focus {
    border-color: var(--md-sys-color-primary);
    box-shadow: none;
    outline: 2px solid var(--md-sys-color-primary);
    outline-offset: -2px;
}
.field input[aria-invalid="true"] { border-color: var(--md-sys-color-error); }
.field input[aria-invalid="true"]:not(:disabled):hover { border-color: var(--md-sys-color-on-error-container); }
.field input[aria-invalid="true"]:not(:disabled):focus {
    border-color: var(--md-sys-color-error);
    outline-color: var(--md-sys-color-error);
    caret-color: var(--md-sys-color-error);
}
.field input:disabled, .input:disabled {
    color: color-mix(in srgb, var(--md-sys-color-on-surface) var(--accounts-m3-disabled-label), transparent);
    border-color: color-mix(in srgb, var(--md-sys-color-on-surface) var(--accounts-m3-disabled-container), transparent);
    box-shadow: none;
}

/* External keyboard focus indication independent of state layers. */
:is(.button-primary, .button-secondary, .control-primary, .auth-tabs button):focus-visible {
    outline: 3px solid var(--md-sys-color-primary);
    outline-offset: 3px;
}
@media (forced-colors: active) {
    :is(.button-primary, .button-secondary, .control-primary, .field input, .input) { forced-color-adjust: auto; }
    :is(.button-primary, .button-secondary, .control-primary, .field input, .input):focus-visible { outline-color: Highlight; }
    .field input:not(:disabled):focus, .input:not(:disabled):focus { outline-color: Highlight; }
}