/* ================================================================
   PERSONAL ERP D1 — UI FOUNDATION + THEME ENGINE
   ================================================================ */

/* ---------- semantic tokens ---------- */
:root,
html[data-theme="minimal"] {
    --ui-bg: #F5F7FB;
    --ui-bg-subtle: #EEF2F7;
    --ui-surface: #FFFFFF;
    --ui-surface-raised: #FFFFFF;
    --ui-surface-soft: #F8FAFD;
    --ui-text: #172033;
    --ui-text-muted: #748096;
    --ui-text-soft: #98A2B3;
    --ui-border: #E3E8F0;
    --ui-border-strong: #CFD7E4;
    --ui-primary: #3D66F5;
    --ui-primary-hover: #3159DF;
    --ui-primary-soft: #EAF0FF;
    --ui-success: #2EA86B;
    --ui-success-soft: #E9F7F0;
    --ui-warning: #D38A2F;
    --ui-warning-soft: #FFF4E4;
    --ui-danger: #DC5252;
    --ui-danger-soft: #FFF0F0;
    --ui-info: #4879E8;
    --ui-purple: #7657D5;
    --ui-pink: #D7558E;
    --ui-shadow-sm: 0 1px 3px rgba(24, 35, 58, .06);
    --ui-shadow-md: 0 8px 24px rgba(24, 35, 58, .08);
    --ui-shadow-lg: 0 20px 60px rgba(24, 35, 58, .13);
    --ui-radius-sm: 9px;
    --ui-radius-md: 14px;
    --ui-radius-lg: 18px;
    --ui-radius-xl: 24px;
    --ui-sidebar-bg: #FFFFFF;
    --ui-sidebar-text: #667085;
    --ui-sidebar-active: #EEF2FF;
    --ui-sidebar-active-text: #2F4DAA;
    --ui-topbar-bg: rgba(255, 255, 255, .88);
    --ui-modal-bg: rgba(18, 26, 43, .42);
    --ui-focus: rgba(61, 102, 245, .22);
    color-scheme: light;
}

html[data-theme="dark"] {
    --ui-bg: #0F131A;
    --ui-bg-subtle: #121821;
    --ui-surface: #171D27;
    --ui-surface-raised: #1C2330;
    --ui-surface-soft: #131923;
    --ui-text: #F4F6FA;
    --ui-text-muted: #A7B0C0;
    --ui-text-soft: #737F91;
    --ui-border: #293240;
    --ui-border-strong: #3A4659;
    --ui-primary: #7C5CFF;
    --ui-primary-hover: #9177FF;
    --ui-primary-soft: #282143;
    --ui-success: #45C486;
    --ui-success-soft: #183226;
    --ui-warning: #E0A752;
    --ui-warning-soft: #342A1B;
    --ui-danger: #F06B72;
    --ui-danger-soft: #3A1D23;
    --ui-info: #6B8EFF;
    --ui-purple: #9A7BFF;
    --ui-pink: #EC6FA5;
    --ui-shadow-sm: 0 1px 3px rgba(0, 0, 0, .2);
    --ui-shadow-md: 0 12px 28px rgba(0, 0, 0, .28);
    --ui-shadow-lg: 0 24px 70px rgba(0, 0, 0, .42);
    --ui-radius-sm: 9px;
    --ui-radius-md: 13px;
    --ui-radius-lg: 17px;
    --ui-radius-xl: 22px;
    --ui-sidebar-bg: #121720;
    --ui-sidebar-text: #98A3B6;
    --ui-sidebar-active: #27213E;
    --ui-sidebar-active-text: #C8B9FF;
    --ui-topbar-bg: rgba(15, 19, 26, .88);
    --ui-modal-bg: rgba(0, 0, 0, .62);
    --ui-focus: rgba(124, 92, 255, .28);
    color-scheme: dark;
}

html[data-theme="warm"] {
    --ui-bg: #FBF6EE;
    --ui-bg-subtle: #F5ECDD;
    --ui-surface: #FFFDFC;
    --ui-surface-raised: #FFFFFF;
    --ui-surface-soft: #FFF8EE;
    --ui-text: #33281F;
    --ui-text-muted: #826F5F;
    --ui-text-soft: #A69586;
    --ui-border: #EBDDCB;
    --ui-border-strong: #DAC5AA;
    --ui-primary: #E78B48;
    --ui-primary-hover: #D97834;
    --ui-primary-soft: #FFF0DE;
    --ui-success: #4D9C69;
    --ui-success-soft: #EDF7F0;
    --ui-warning: #D68B32;
    --ui-warning-soft: #FFF1DC;
    --ui-danger: #D85C52;
    --ui-danger-soft: #FFF0ED;
    --ui-info: #6C82B8;
    --ui-purple: #8C6FA8;
    --ui-pink: #D16F83;
    --ui-shadow-sm: 0 1px 3px rgba(82, 56, 35, .05);
    --ui-shadow-md: 0 8px 24px rgba(82, 56, 35, .08);
    --ui-shadow-lg: 0 20px 60px rgba(82, 56, 35, .12);
    --ui-radius-sm: 10px;
    --ui-radius-md: 15px;
    --ui-radius-lg: 20px;
    --ui-radius-xl: 26px;
    --ui-sidebar-bg: #FFFDFC;
    --ui-sidebar-text: #826F5F;
    --ui-sidebar-active: #FFF0DE;
    --ui-sidebar-active-text: #9E5B2C;
    --ui-topbar-bg: rgba(255, 253, 252, .9);
    --ui-modal-bg: rgba(62, 44, 30, .38);
    --ui-focus: rgba(231, 139, 72, .24);
    color-scheme: light;
}

html[data-theme="bold"] {
    --ui-bg: #F6F7FC;
    --ui-bg-subtle: #ECEFFC;
    --ui-surface: #FFFFFF;
    --ui-surface-raised: #FFFFFF;
    --ui-surface-soft: #F9FAFE;
    --ui-text: #171B2C;
    --ui-text-muted: #707A91;
    --ui-text-soft: #9AA3B6;
    --ui-border: #E0E4EF;
    --ui-border-strong: #C9D0E1;
    --ui-primary: #5A55FF;
    --ui-primary-hover: #4742EA;
    --ui-primary-soft: #ECEBFF;
    --ui-success: #22B96B;
    --ui-success-soft: #E7F9EF;
    --ui-warning: #F0A12E;
    --ui-warning-soft: #FFF3DB;
    --ui-danger: #F04D67;
    --ui-danger-soft: #FFEAF0;
    --ui-info: #2D7DF5;
    --ui-purple: #8654F4;
    --ui-pink: #E4499A;
    --ui-shadow-sm: 0 1px 3px rgba(25, 31, 56, .06);
    --ui-shadow-md: 0 10px 26px rgba(25, 31, 56, .09);
    --ui-shadow-lg: 0 22px 64px rgba(25, 31, 56, .14);
    --ui-radius-sm: 7px;
    --ui-radius-md: 11px;
    --ui-radius-lg: 15px;
    --ui-radius-xl: 20px;
    --ui-sidebar-bg: #FFFFFF;
    --ui-sidebar-text: #68738B;
    --ui-sidebar-active: #ECEBFF;
    --ui-sidebar-active-text: #4540D2;
    --ui-topbar-bg: rgba(255, 255, 255, .9);
    --ui-modal-bg: rgba(20, 24, 43, .42);
    --ui-focus: rgba(90, 85, 255, .22);
    color-scheme: light;
}

/* ---------- density and typography ---------- */
html[data-density="comfortable"] {
    --ui-space-scale: 1;
    --ui-control-height: 46px;
    --ui-card-padding: 18px;
}

html[data-density="cozy"] {
    --ui-space-scale: .9;
    --ui-control-height: 42px;
    --ui-card-padding: 15px;
}

html[data-density="compact"] {
    --ui-space-scale: .78;
    --ui-control-height: 38px;
    --ui-card-padding: 12px;
}

html[data-font-scale="small"] {
    font-size: 14px;
}

html[data-font-scale="normal"] {
    font-size: 16px;
}

html[data-font-scale="large"] {
    font-size: 18px;
}

html[data-motion="reduce"] *,
html[data-motion="reduce"] *::before,
html[data-motion="reduce"] *::after {
    scroll-behavior: auto !important;
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
}

/* ---------- reset and global theme bridge ---------- */
html {
    min-height: 100%;
    background: var(--ui-bg);
    color: var(--ui-text);
    font-family:
        Inter,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
}

body {
    min-height: 100dvh;
    background: var(--ui-bg) !important;
    color: var(--ui-text);
}

a {
    color: var(--ui-primary);
}

button,
input,
textarea,
select {
    color: var(--ui-text);
}

input,
textarea,
select {
    border-color: var(--ui-border) !important;
    background: var(--ui-surface-soft) !important;
    color: var(--ui-text) !important;
}

input::placeholder,
textarea::placeholder {
    color: var(--ui-text-soft);
}

input:focus,
textarea:focus,
select:focus {
    border-color: var(--ui-primary) !important;
    box-shadow: 0 0 0 4px var(--ui-focus) !important;
}

.eyebrow {
    color: var(--ui-text-muted) !important;
}

.page-heading p,
.welcome-text,
small {
    color: var(--ui-text-muted);
}

/* common existing components: foundation layer */
.content-card,
.quick-card,
.project-card,
.task-card,
.event-card,
.note-card,
.more-card,
.document-card,
.attachment-card,
.backup-card,
.project-template-card,
.import-preview-list > article,
.storage-file-list > article,
.family-list-card,
.calendar-day,
.week-day,
.system-card {
    border-color: var(--ui-border) !important;
    background: var(--ui-surface) !important;
    color: var(--ui-text) !important;
    box-shadow: var(--ui-shadow-sm) !important;
}

.content-card h1,
.content-card h2,
.content-card h3,
.quick-card strong,
.project-card h2,
.task-card strong,
.more-card strong,
.document-card h2,
.project-template-card h2 {
    color: var(--ui-text) !important;
}

.badge {
    background: var(--ui-bg-subtle) !important;
    color: var(--ui-text-muted) !important;
}

.primary-button,
.topbar-create-button {
    border: 0 !important;
    background: var(--ui-primary) !important;
    color: #fff !important;
}

.primary-button:hover,
.topbar-create-button:hover {
    background: var(--ui-primary-hover) !important;
}

.secondary-button,
.logout-button {
    border-color: var(--ui-border) !important;
    background: var(--ui-bg-subtle) !important;
    color: var(--ui-text) !important;
}

.danger-button {
    background: var(--ui-danger-soft) !important;
    color: var(--ui-danger) !important;
}

.message {
    border: 1px solid color-mix(
        in srgb,
        var(--ui-success) 25%,
        transparent
    );
    background: var(--ui-success-soft) !important;
    color: var(--ui-success) !important;
}

.message.error {
    background: var(--ui-danger-soft) !important;
    color: var(--ui-danger) !important;
}

/* ---------- desktop shell ---------- */
.erp-shell {
    min-height: 100dvh;
}

.desktop-sidebar {
    display: none;
}

.desktop-topbar {
    display: none;
}

.erp-main {
    min-width: 0;
}

.erp-main .page {
    width: min(100%, 860px);
    max-width: none;
    margin: 0 auto;
    padding:
        22px 15px
        calc(104px + env(safe-area-inset-bottom));
}

.sidebar-brand,
.sidebar-footer,
.desktop-topbar {
    border-color: var(--ui-border);
}

.sidebar-brand-link {
    color: var(--ui-text);
    text-decoration: none;
}

.sidebar-brand-mark {
    display: grid;
    width: 36px;
    height: 36px;
    place-items: center;
    border-radius: 11px;
    background: var(--ui-primary);
    color: #fff;
    font-size: 16px;
    font-weight: 900;
}

.sidebar-brand-copy strong,
.sidebar-brand-copy small {
    display: block;
}

.sidebar-brand-copy strong {
    color: var(--ui-text);
    font-size: 13px;
}

.sidebar-brand-copy small {
    margin-top: 2px;
    color: var(--ui-text-soft);
    font-size: 8px;
    font-weight: 700;
}

.sidebar-collapse-link {
    display: grid;
    width: 28px;
    height: 28px;
    place-items: center;
    border: 1px solid var(--ui-border);
    border-radius: 9px;
    color: var(--ui-text-muted);
    text-decoration: none;
}

.sidebar-nav {
    display: grid;
    align-content: start;
    gap: 12px;
    padding: 12px;
    overflow: auto;
}

.sidebar-nav-group {
    display: grid;
    gap: 3px;
}

.sidebar-nav-divider {
    height: 1px;
    background: var(--ui-border);
}

.sidebar-link {
    display: flex;
    min-height: 42px;
    align-items: center;
    gap: 10px;
    padding: 0 10px;
    border-radius: var(--ui-radius-sm);
    color: var(--ui-sidebar-text);
    font-size: 10px;
    font-weight: 750;
    text-decoration: none;
    transition:
        background 150ms ease,
        color 150ms ease,
        transform 150ms ease;
}

.sidebar-link:hover {
    background: var(--ui-bg-subtle);
    color: var(--ui-text);
}

.sidebar-link.active {
    background: var(--ui-sidebar-active);
    color: var(--ui-sidebar-active-text);
}

.sidebar-icon {
    display: grid;
    width: 22px;
    flex: 0 0 22px;
    place-items: center;
    font-size: 15px;
}

.sidebar-label {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sidebar-kbd {
    margin-left: auto;
    padding: 3px 5px;
    border: 1px solid var(--ui-border);
    border-radius: 6px;
    background: var(--ui-surface-soft);
    color: var(--ui-text-soft);
    font-size: 7px;
}

.user-avatar {
    display: grid;
    width: 34px;
    height: 34px;
    flex: 0 0 34px;
    place-items: center;
    border-radius: 50%;
    background:
        linear-gradient(
            145deg,
            var(--ui-primary),
            var(--ui-purple)
        );
    color: #fff;
    font-size: 12px;
    font-weight: 900;
}

.user-avatar.small {
    width: 30px;
    height: 30px;
    flex-basis: 30px;
    font-size: 10px;
}

.sidebar-footer {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 8px;
    padding: 11px;
    border-top: 1px solid var(--ui-border);
}

.sidebar-profile {
    display: flex;
    min-width: 0;
    align-items: center;
    gap: 9px;
    color: var(--ui-text);
    text-decoration: none;
}

.sidebar-profile-copy {
    min-width: 0;
}

.sidebar-profile-copy strong,
.sidebar-profile-copy small {
    display: block;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sidebar-profile-copy strong {
    font-size: 9px;
}

.sidebar-profile-copy small {
    margin-top: 2px;
    color: var(--ui-text-soft);
    font-size: 7px;
}

.sidebar-theme-button {
    display: grid;
    width: 30px;
    height: 30px;
    place-items: center;
    border: 1px solid var(--ui-border);
    border-radius: 10px;
    color: var(--ui-text-muted);
    text-decoration: none;
}

.desktop-topbar {
    position: sticky;
    z-index: 30;
    top: 0;
    min-height: 64px;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 9px 24px;
    border-bottom: 1px solid var(--ui-border);
    background: var(--ui-topbar-bg);
    backdrop-filter: blur(18px);
}

.topbar-search {
    display: flex;
    min-width: 260px;
    min-height: 38px;
    align-items: center;
    gap: 8px;
    padding: 0 10px;
    border: 1px solid var(--ui-border);
    border-radius: 11px;
    background: var(--ui-surface-soft);
    color: var(--ui-text-muted);
    font-size: 9px;
    text-decoration: none;
}

.topbar-search kbd {
    margin-left: auto;
    color: var(--ui-text-soft);
    font-size: 7px;
}

.desktop-topbar-actions {
    display: flex;
    align-items: center;
    gap: 7px;
}

.topbar-create-button {
    display: flex;
    min-height: 38px;
    align-items: center;
    gap: 6px;
    padding: 0 13px;
    border-radius: 11px;
    font-size: 9px;
    font-weight: 850;
    cursor: pointer;
}

.topbar-icon-button,
.topbar-account-trigger {
    display: grid;
    width: 38px;
    height: 38px;
    place-items: center;
    border: 1px solid var(--ui-border);
    border-radius: 11px;
    background: var(--ui-surface);
    color: var(--ui-text-muted);
    text-decoration: none;
    cursor: pointer;
}

.topbar-account {
    position: relative;
}

.topbar-account summary {
    list-style: none;
}

.topbar-account summary::-webkit-details-marker {
    display: none;
}

.account-dropdown {
    position: absolute;
    z-index: 50;
    top: calc(100% + 8px);
    right: 0;
    display: grid;
    width: 220px;
    padding: 8px;
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-md);
    background: var(--ui-surface-raised);
    box-shadow: var(--ui-shadow-lg);
}

.account-dropdown-user {
    padding: 9px 10px;
    border-bottom: 1px solid var(--ui-border);
}

.account-dropdown-user strong,
.account-dropdown-user small {
    display: block;
}

.account-dropdown-user strong {
    font-size: 10px;
}

.account-dropdown-user small {
    margin-top: 3px;
    color: var(--ui-text-soft);
    font-size: 8px;
}

.account-dropdown > a,
.account-dropdown form button {
    display: flex;
    width: 100%;
    min-height: 38px;
    align-items: center;
    padding: 0 10px;
    border: 0;
    border-radius: 9px;
    background: transparent;
    color: var(--ui-text-muted);
    font-size: 9px;
    font-weight: 750;
    text-align: left;
    text-decoration: none;
    cursor: pointer;
}

.account-dropdown > a:hover,
.account-dropdown form button:hover {
    background: var(--ui-bg-subtle);
    color: var(--ui-text);
}

/* collapsed sidebar */
@media (min-width: 1040px) {
    .erp-shell[data-sidebar-collapsed="true"] {
        grid-template-columns: 76px minmax(0, 1fr);
    }

    .erp-shell[data-sidebar-collapsed="true"]
    .sidebar-brand-copy,
    .erp-shell[data-sidebar-collapsed="true"]
    .sidebar-label,
    .erp-shell[data-sidebar-collapsed="true"]
    .sidebar-kbd,
    .erp-shell[data-sidebar-collapsed="true"]
    .sidebar-profile-copy {
        display: none;
    }

    .erp-shell[data-sidebar-collapsed="true"]
    .sidebar-brand {
        justify-content: center;
        padding-inline: 8px;
    }

    .erp-shell[data-sidebar-collapsed="true"]
    .sidebar-collapse-link {
        display: none;
    }

    .erp-shell[data-sidebar-collapsed="true"]
    .sidebar-link {
        justify-content: center;
        padding-inline: 0;
    }

    .erp-shell[data-sidebar-collapsed="true"]
    .sidebar-footer {
        grid-template-columns: 1fr;
        justify-items: center;
    }
}

/* ---------- mobile navigation ---------- */
.mobile-bottom-nav {
    position: fixed;
    z-index: 42;
    right: 0;
    bottom: 0;
    left: 0;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    padding:
        7px 5px
        calc(7px + env(safe-area-inset-bottom));
    border-top: 1px solid var(--ui-border);
    background: color-mix(
        in srgb,
        var(--ui-surface) 92%,
        transparent
    );
    backdrop-filter: blur(18px);
}

.mobile-nav-item {
    display: flex;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 3px;
    border-radius: 11px;
    color: var(--ui-text-soft);
    font-size: 8px;
    font-weight: 750;
    text-decoration: none;
}

.mobile-nav-item.active {
    color: var(--ui-primary);
}

.mobile-nav-icon {
    font-size: 17px;
    line-height: 1;
}

.mobile-create-fab {
    position: fixed;
    z-index: 45;
    right: 18px;
    bottom:
        calc(
            68px
            + env(safe-area-inset-bottom)
        );
    display: grid;
    width: 52px;
    height: 52px;
    place-items: center;
    border: 4px solid var(--ui-bg);
    border-radius: 50%;
    background: var(--ui-primary);
    color: #fff;
    box-shadow: var(--ui-shadow-lg);
    font-size: 25px;
    cursor: pointer;
}

/* old bottom nav hidden by new shell */
.bottom-nav,
.topbar {
    display: none !important;
}

/* ---------- quick create modal ---------- */
.ui-modal-backdrop {
    position: fixed;
    z-index: 100;
    inset: 0;
    display: grid;
    align-items: end;
    padding: 12px;
    background: var(--ui-modal-bg);
    backdrop-filter: blur(6px);
}

.ui-modal-backdrop[hidden] {
    display: none;
}

.quick-create-sheet {
    width: min(100%, 620px);
    max-height: min(84dvh, 700px);
    margin: 0 auto;
    overflow: auto;
    padding: 17px;
    border: 1px solid var(--ui-border);
    border-radius: 24px;
    background: var(--ui-surface-raised);
    box-shadow: var(--ui-shadow-lg);
}

.quick-create-sheet > header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.quick-create-sheet h2 {
    margin: 0;
    color: var(--ui-text);
    font-size: 18px;
}

.ui-icon-button {
    display: grid;
    width: 36px;
    height: 36px;
    place-items: center;
    border: 1px solid var(--ui-border);
    border-radius: 11px;
    background: var(--ui-surface-soft);
    color: var(--ui-text-muted);
    font-size: 19px;
    cursor: pointer;
}

.quick-create-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

.quick-create-grid > a {
    display: flex;
    min-height: 76px;
    align-items: center;
    gap: 10px;
    padding: 11px;
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-md);
    background: var(--ui-surface);
    color: var(--ui-text);
    text-decoration: none;
}

.quick-create-grid > a:hover {
    border-color: var(--ui-primary);
    box-shadow: var(--ui-shadow-sm);
}

.quick-create-icon {
    display: grid;
    width: 36px;
    height: 36px;
    flex: 0 0 36px;
    place-items: center;
    border-radius: 11px;
    background: var(--ui-primary-soft);
    color: var(--ui-primary);
    font-size: 16px;
}

.quick-create-grid strong,
.quick-create-grid small {
    display: block;
}

.quick-create-grid strong {
    font-size: 10px;
}

.quick-create-grid small {
    margin-top: 3px;
    color: var(--ui-text-soft);
    font-size: 8px;
    line-height: 1.35;
}

/* ---------- appearance settings ---------- */
.appearance-heading {
    display: grid;
    gap: 12px;
}

.appearance-current-badge {
    align-self: center;
    justify-self: start;
    padding: 8px 10px;
    border-radius: 999px;
    background: var(--ui-primary-soft);
    color: var(--ui-primary);
    font-size: 9px;
    font-weight: 900;
}

.appearance-form {
    display: grid;
    gap: 13px;
}

.appearance-section {
    margin-top: 0 !important;
}

.theme-choice-grid {
    display: grid;
    gap: 9px;
    margin-top: 13px;
}

.theme-choice {
    position: relative;
    display: grid;
    gap: 10px;
    padding: 10px;
    border: 2px solid var(--ui-border);
    border-radius: var(--ui-radius-lg);
    background: var(--ui-surface-soft);
    cursor: pointer;
}

.theme-choice > input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.theme-choice:has(input:checked) {
    border-color: var(--ui-primary);
    box-shadow: 0 0 0 3px var(--ui-focus);
}

.theme-choice-check {
    position: absolute;
    top: 9px;
    right: 9px;
    display: none;
    width: 24px;
    height: 24px;
    place-items: center;
    border-radius: 50%;
    background: var(--ui-primary);
    color: #fff;
    font-size: 10px;
    font-weight: 900;
}

.theme-choice:has(input:checked)
.theme-choice-check {
    display: grid;
}

.theme-preview {
    display: grid;
    grid-template-columns: 24px minmax(0, 1fr);
    min-height: 102px;
    overflow: hidden;
    border: 1px solid rgba(120, 130, 150, .18);
    border-radius: 11px;
}

.theme-preview-sidebar {
    background: #fff;
}

.theme-preview-main {
    display: grid;
    grid-template-rows: 18px 1fr 1.1fr;
    gap: 5px;
    padding: 6px;
    background: #f5f7fb;
}

.theme-preview-topbar {
    border-radius: 5px;
    background: #fff;
}

.theme-preview-metrics,
.theme-preview-content {
    display: grid;
    gap: 4px;
}

.theme-preview-metrics {
    grid-template-columns: repeat(3, 1fr);
}

.theme-preview-content {
    grid-template-columns: 1.4fr 1fr;
}

.theme-preview i {
    border-radius: 5px;
    background: #fff;
}

.theme-choice-dark .theme-preview-sidebar {
    background: #111720;
}

.theme-choice-dark .theme-preview-main {
    background: #0f131a;
}

.theme-choice-dark .theme-preview i,
.theme-choice-dark .theme-preview-topbar {
    background: #1c2330;
}

.theme-choice-warm .theme-preview-sidebar {
    background: #fffdfc;
}

.theme-choice-warm .theme-preview-main {
    background: #fbf6ee;
}

.theme-choice-warm .theme-preview i,
.theme-choice-warm .theme-preview-topbar {
    background: #fff8ee;
}

.theme-choice-bold .theme-preview-sidebar {
    background: #fff;
}

.theme-choice-bold .theme-preview-main {
    background: #f6f7fc;
}

.theme-choice-bold .theme-preview-metrics i:nth-child(1) {
    background: #ffeaf0;
}

.theme-choice-bold .theme-preview-metrics i:nth-child(2) {
    background: #ecebff;
}

.theme-choice-bold .theme-preview-metrics i:nth-child(3) {
    background: #e7f9ef;
}

.theme-choice-copy strong,
.theme-choice-copy small {
    display: block;
}

.theme-choice-copy strong {
    color: var(--ui-text);
    font-size: 11px;
}

.theme-choice-copy small {
    margin-top: 4px;
    color: var(--ui-text-muted);
    font-size: 8px;
    line-height: 1.4;
}

.appearance-settings-grid {
    display: grid;
    gap: 13px;
}

.segmented-control {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 5px;
    margin-top: 13px;
    padding: 4px;
    border: 1px solid var(--ui-border);
    border-radius: 13px;
    background: var(--ui-bg-subtle);
}

.segmented-control label {
    position: relative;
}

.segmented-control input {
    position: absolute;
    opacity: 0;
}

.segmented-control span {
    display: grid;
    min-height: 40px;
    place-items: center;
    border-radius: 9px;
    color: var(--ui-text-muted);
    font-size: 9px;
    font-weight: 800;
    cursor: pointer;
}

.segmented-control label:has(input:checked) span {
    background: var(--ui-surface);
    color: var(--ui-primary);
    box-shadow: var(--ui-shadow-sm);
}

.font-option small {
    margin-top: 2px;
    color: inherit;
    font-size: 7px;
}

.font-option-small {
    font-size: 12px !important;
}

.font-option-normal {
    font-size: 15px !important;
}

.font-option-large {
    font-size: 18px !important;
}

.appearance-toggle-list {
    display: grid;
    gap: 8px;
    margin-top: 13px;
}

.settings-toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 11px;
    border: 1px solid var(--ui-border);
    border-radius: 12px;
    background: var(--ui-surface-soft);
}

.settings-toggle-row strong,
.settings-toggle-row small {
    display: block;
}

.settings-toggle-row strong {
    color: var(--ui-text);
    font-size: 10px;
}

.settings-toggle-row small {
    max-width: 520px;
    margin-top: 4px;
    color: var(--ui-text-muted);
    font-size: 8px;
    line-height: 1.4;
}

.switch-control {
    position: relative;
    display: block;
    width: 42px;
    height: 24px;
    flex: 0 0 42px;
}

.switch-control input {
    position: absolute;
    opacity: 0;
}

.switch-control i {
    position: absolute;
    inset: 0;
    border-radius: 999px;
    background: var(--ui-border-strong);
    transition: background 150ms ease;
}

.switch-control i::after {
    position: absolute;
    top: 3px;
    left: 3px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 1px 4px rgba(0, 0, 0, .18);
    content: "";
    transition: transform 150ms ease;
}

.switch-control input:checked + i {
    background: var(--ui-primary);
}

.switch-control input:checked + i::after {
    transform: translateX(18px);
}

.appearance-live-preview {
    overflow: hidden;
    padding: 15px;
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius-xl);
    background: var(--ui-surface);
    box-shadow: var(--ui-shadow-sm);
}

.appearance-preview-header {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 13px;
}

.appearance-preview-header h2 {
    margin: 0;
    font-size: 15px;
}

.appearance-preview-header > span {
    color: var(--ui-text-soft);
    font-size: 8px;
}

.appearance-preview-dashboard {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr);
    min-height: 290px;
    overflow: hidden;
    border: 1px solid var(--ui-border);
    border-radius: 14px;
    background: var(--ui-bg);
}

.appearance-preview-dashboard > aside {
    display: grid;
    align-content: start;
    justify-items: center;
    gap: 12px;
    padding: 10px 7px;
    border-right: 1px solid var(--ui-border);
    background: var(--ui-sidebar-bg);
}

.appearance-preview-dashboard > aside b {
    display: grid;
    width: 24px;
    height: 24px;
    place-items: center;
    border-radius: 7px;
    background: var(--ui-primary);
    color: #fff;
    font-size: 9px;
}

.appearance-preview-dashboard > aside i {
    width: 18px;
    height: 5px;
    border-radius: 999px;
    background: var(--ui-border-strong);
}

.appearance-preview-dashboard > main {
    padding: 10px;
}

.appearance-preview-dashboard main > header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 26px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--ui-border);
}

.appearance-preview-dashboard main > header strong {
    font-size: 8px;
}

.appearance-preview-dashboard main > header span {
    width: 44px;
    height: 6px;
    border-radius: 999px;
    background: var(--ui-border);
}

.appearance-preview-title {
    display: grid;
    gap: 2px;
    padding: 12px 0;
}

.appearance-preview-title small {
    font-size: 7px;
}

.appearance-preview-title strong {
    font-size: 12px;
}

.appearance-preview-stat-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 6px;
}

.appearance-preview-stat-grid article {
    min-height: 66px;
    padding: 8px;
    border: 1px solid var(--ui-border);
    border-radius: 9px;
    background: var(--ui-surface);
}

.appearance-preview-stat-grid article:first-child {
    border-color: color-mix(
        in srgb,
        var(--ui-danger) 25%,
        var(--ui-border)
    );
    background: var(--ui-danger-soft);
}

.appearance-preview-stat-grid small,
.appearance-preview-stat-grid strong {
    display: block;
}

.appearance-preview-stat-grid small {
    font-size: 6px;
}

.appearance-preview-stat-grid strong {
    margin-top: 7px;
    color: var(--ui-primary);
    font-size: 15px;
}

.appearance-preview-stat-grid article:first-child strong {
    color: var(--ui-danger);
}

.appearance-preview-panels {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 6px;
    margin-top: 6px;
}

.appearance-preview-panels article {
    min-height: 105px;
    border: 1px solid var(--ui-border);
    border-radius: 9px;
    background: var(--ui-surface);
}

.appearance-save-bar {
    position: sticky;
    z-index: 20;
    bottom: calc(
        67px + env(safe-area-inset-bottom)
    );
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 8px;
    padding: 9px;
    border: 1px solid var(--ui-border);
    border-radius: 14px;
    background: color-mix(
        in srgb,
        var(--ui-surface) 94%,
        transparent
    );
    box-shadow: var(--ui-shadow-md);
    backdrop-filter: blur(16px);
}

.appearance-save-bar .primary-button,
.appearance-save-bar .secondary-button {
    margin: 0;
}

/* ---------- theme-specific character ---------- */
html[data-theme="dark"] .project-header,
html[data-theme="dark"] .document-detail-hero,
html[data-theme="dark"] .template-detail-hero {
    background:
        linear-gradient(
            145deg,
            #201B36,
            #121722
        ) !important;
}

html[data-theme="warm"] .project-header,
html[data-theme="warm"] .document-detail-hero,
html[data-theme="warm"] .template-detail-hero {
    background:
        linear-gradient(
            145deg,
            #7D5A3F,
            #B46F3D
        ) !important;
}

html[data-theme="bold"] .quick-grid > *:nth-child(4n + 1),
html[data-theme="bold"] .document-metrics > *:nth-child(4n + 1) {
    border-top: 3px solid var(--ui-danger) !important;
}

html[data-theme="bold"] .quick-grid > *:nth-child(4n + 2),
html[data-theme="bold"] .document-metrics > *:nth-child(4n + 2) {
    border-top: 3px solid var(--ui-primary) !important;
}

html[data-theme="bold"] .quick-grid > *:nth-child(4n + 3),
html[data-theme="bold"] .document-metrics > *:nth-child(4n + 3) {
    border-top: 3px solid var(--ui-success) !important;
}

html[data-theme="bold"] .quick-grid > *:nth-child(4n + 4),
html[data-theme="bold"] .document-metrics > *:nth-child(4n + 4) {
    border-top: 3px solid var(--ui-warning) !important;
}

/* ---------- authenticated desktop ---------- */
@media (min-width: 1040px) {
    .erp-shell {
        display: grid;
        grid-template-columns: 214px minmax(0, 1fr);
    }

    .desktop-sidebar {
        position: sticky;
        z-index: 35;
        top: 0;
        display: grid;
        grid-template-rows: auto minmax(0, 1fr) auto;
        height: 100dvh;
        border-right: 1px solid var(--ui-border);
        background: var(--ui-sidebar-bg);
    }

    .sidebar-brand {
        display: flex;
        min-height: 64px;
        align-items: center;
        justify-content: space-between;
        gap: 9px;
        padding: 10px 12px;
        border-bottom: 1px solid var(--ui-border);
    }

    .sidebar-brand-link {
        display: flex;
        min-width: 0;
        align-items: center;
        gap: 9px;
    }

    .desktop-topbar {
        display: flex;
    }

    .erp-main .page {
        width: 100%;
        max-width: 1280px;
        padding:
            calc(26px * var(--ui-space-scale))
            26px
            50px;
    }

    .mobile-bottom-nav,
    .mobile-create-fab {
        display: none;
    }

    .ui-modal-backdrop {
        align-items: center;
    }

    .quick-create-sheet {
        padding: 20px;
    }

    .quick-create-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .appearance-heading {
        grid-template-columns: minmax(0, 1fr) auto;
        align-items: center;
    }

    .appearance-current-badge {
        justify-self: end;
    }

    .theme-choice-grid {
        grid-template-columns: repeat(4, minmax(0, 1fr));
    }

    .appearance-settings-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .appearance-save-bar {
        bottom: 16px;
        grid-template-columns: auto auto;
        justify-content: end;
    }
}

/* ---------- anonymous/login ---------- */
.erp-anonymous {
    background:
        radial-gradient(
            circle at 25% 10%,
            var(--ui-primary-soft),
            transparent 34%
        ),
        var(--ui-bg) !important;
}

.auth-page {
    color: var(--ui-text);
}

.login-card {
    border-color: var(--ui-border) !important;
    background: var(--ui-surface) !important;
    box-shadow: var(--ui-shadow-lg) !important;
}

.login-logo {
    background: var(--ui-primary) !important;
}

/* ---------- focus and accessibility ---------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
summary:focus-visible {
    outline: 3px solid var(--ui-focus) !important;
    outline-offset: 2px !important;
}

@media (max-width: 420px) {
    .quick-create-grid {
        grid-template-columns: 1fr;
    }

    .appearance-preview-header > span {
        display: none;
    }

    .appearance-preview-stat-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .appearance-save-bar {
        grid-template-columns: 1fr 1.4fr;
    }
}