/* Eventplan — shared theme. Replace wwwroot/css/site.css with this file.
Load after Bootstrap. Existing Razor class names are preserved. */
:root {
    color-scheme: light;
    /* Typography */
    --font-sans: "Segoe UI", "Noto Sans", Arial, sans-serif;
    /* Eventplan brand */
    --brand-navy: #102A61;
    --brand-blue: #1769E0;
    --brand-blue-hover: #0F58C7;
    --brand-cyan: #18CFF2;
    --brand-violet: #6E49E8;
    /* Core UI */
    --color-canvas: #F7F8FA;
    --color-on-primary: #FFFFFF;
    --color-text: #182230;
    --color-muted: #667085;
    --color-primary: #1769E0;
    --color-primary-hover: #0F58C7;
    --color-primary-soft: #EDF4FF;
    --color-accent: #6E49E8;
    --color-accent-soft: #F2EEFF;
    --color-border: #E3E7ED;
    --color-border-hover: #B8C2D0;
    --color-surface: #FFFFFF;
    --color-surface-soft: #F8FAFC;
    --color-surface-hover: #F2F4F7;
    --color-focus: #2E90FA;
    /* States */
    --color-success: #18794E;
    --color-success-soft: #EAF7F0;
    --color-warning: #8A5A12;
    --color-warning-soft: #FFF7E7;
    --color-warning-border: #F1D9A8;
    --color-danger: #B42318;
    --color-danger-hover: #912018;
    --color-danger-soft: #FFF4F2;
    --color-danger-border: #F3C6C1;
    /* Sidebar */
    --sidebar-bg: #101828;
    --sidebar-text: #D0D5DD;
    --sidebar-muted: #98A2B3;
    --sidebar-border: #344054;
    --sidebar-hover: #1D2939;
    --sidebar-active-bg: #1D2939;
    --sidebar-active-text: #FFFFFF;
    --sidebar-accent: #2E90FA;
    --sidebar-width: 248px;
    /* Shape */
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 10px;
    /* Elevation */
    --shadow-sm: 0 1px 2px rgb(16 24 40 / 4%);
    --shadow-md: 0 2px 8px rgb(16 24 40 / 6%);
    --shadow-primary: none;
    /* Existing view aliases */
    --conf-text: var(--color-text);
    --conf-muted: var(--color-muted);
    --conf-border: var(--color-border);
    --conf-primary: var(--color-primary);
    /* Bootstrap integration */
    --bs-body-font-family: var(--font-sans);
    --bs-body-color: var(--color-text);
    --bs-body-bg: var(--color-canvas);
    --bs-border-color: var(--color-border);
    --bs-primary: var(--color-primary);
    --bs-primary-rgb: 23, 105, 224;
    --bs-link-color: var(--color-primary);
    --bs-link-hover-color: var(--color-primary-hover);
}

/* Base */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    position: relative;
    min-height: 100%;
    font-size: 16px;
}

body {
    margin: 0 0 80px;
    background: var(--color-canvas);
    color: var(--color-text);
    font-family: var(--font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

[hidden] {
    display: none !important;
}

::selection {
    background: var(--color-primary-soft);
    color: var(--color-text);
}

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

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

:where(a, button, input, textarea, select, [tabindex], .btn, .btn-link):focus-visible {
    outline: 3px solid var(--color-focus);
    outline-offset: 3px;
}

.form-control, .form-select {
    color: var(--color-text);
    background-color: var(--color-surface);
    border-color: var(--color-border);
    border-radius: var(--radius-md);
}

    .form-control:focus, .form-select:focus, .form-check-input:focus {
        border-color: var(--color-primary);
        box-shadow: 0 0 0 3px rgb(23 105 224 / 10%);
    }

.form-check-input:checked {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

.form-floating > .form-control::placeholder,
.form-floating > .form-control-plaintext::placeholder {
    color: var(--color-muted);
    text-align: end;
}

.form-floating > .form-control:focus::placeholder,
.form-floating > .form-control-plaintext:focus::placeholder {
    text-align: start;
}

.btn-primary {
    --bs-btn-bg: var(--color-primary);
    --bs-btn-border-color: var(--color-primary);
    --bs-btn-hover-bg: var(--color-primary-hover);
    --bs-btn-hover-border-color: var(--color-primary-hover);
    --bs-btn-active-bg: var(--color-primary-hover);
    --bs-btn-active-border-color: var(--color-primary-hover);
    --bs-btn-disabled-bg: var(--color-primary);
    --bs-btn-disabled-border-color: var(--color-primary);
    --bs-btn-focus-shadow-rgb: 23, 105, 224;
    border-radius: var(--radius-md);
}

.conf-button:disabled, .conf-filter:disabled,
.language-switcher__button:disabled {
    opacity: .55;
    cursor: not-allowed;
    box-shadow: none;
}

.conf-field input:is([type="checkbox"], [type="radio"]) {
    display: inline-block;
    width: 1.1rem;
    min-height: 0;
    height: 1.1rem;
    padding: 0;
    accent-color: var(--color-primary);
}

.conf-field input:disabled, .conf-field select:disabled,
.conf-field textarea:disabled {
    background: var(--color-surface-soft);
    color: var(--color-muted);
    cursor: not-allowed;
}

/* Language switcher and site navigation */
.language-switcher {
    position: relative;
}

.language-switcher__current {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .45rem;
    min-width: 64px;
    height: 42px;
    padding: 0 .85rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: transparent;
    color: inherit;
    font-size: .82rem;
    font-weight: 700;
    letter-spacing: .08em;
    transition: background-color .2s ease, border-color .2s ease, color .2s ease;
}

    .language-switcher__current:hover,
    .language-switcher__current:focus {
        border-color: currentColor;
        background: var(--color-surface-hover);
    }

    .language-switcher__current::after {
        margin-left: .15rem;
        vertical-align: middle;
    }

.language-switcher__menu {
    min-width: 180px;
    margin-top: .5rem;
    padding: .4rem;
    border: 1px solid var(--color-border);
    border-radius: 14px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
}

    .language-switcher__menu form {
        margin: 0;
    }

.language-switcher__item {
    display: grid;
    grid-template-columns: 34px 1fr auto;
    align-items: center;
    gap: .65rem;
    width: 100%;
    padding: .7rem .75rem;
    border: 0;
    border-radius: 9px;
    font-size: .9rem;
}

    .language-switcher__item:hover,
    .language-switcher__item:focus {
        background: var(--color-surface-hover);
    }

    .language-switcher__item.active {
        background: var(--color-primary-soft);
        color: inherit;
        font-weight: 600;
    }

.language-switcher__item-code {
    font-size: .76rem;
    font-weight: 700;
    letter-spacing: .06em;
    opacity: .65;
}

.language-switcher__item-name {
    white-space: nowrap;
}

.language-switcher__check {
    font-size: .85rem;
    opacity: .75;
}

.site-header .navbar {
    min-height: 76px;
}

.site-header .site-brand {
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
    margin-right: 36px;
    padding: 0;
    color: var(--color-text);
    text-decoration: none;
}

.site-brand-dot {
    color: var(--color-primary);
}

.site-logo {
    display: block;
    width: auto;
    height: 48px;
    max-width: 100%;
    object-fit: contain;
}


.site-nav {
    gap: 6px;
}

.site-header .site-header-tools .nav-link,
.site-header .site-nav .nav-link {
    padding: 10px 14px;
    border-radius: var(--radius-md);
    color: var(--color-muted);
    font-size: 0.94rem;
    font-weight: 500;
    transition: color 0.15s ease, background-color 0.15s ease;
}

    .site-header .site-header-tools .nav-link:hover,
    .site-header .site-nav .nav-link:hover {
        color: var(--color-primary);
        background: var(--color-surface-soft);
    }

    .site-header .site-header-tools .nav-link.active,
    .site-header .site-nav .nav-link.active {
        color: var(--color-primary);
        background: var(--color-primary-soft);
        font-weight: 600;
    }

.site-header-tools {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-left: 24px;
}

    .site-header-tools .navbar-nav {
        margin-bottom: 0;
    }

.site-header .navbar-toggler {
    padding: 7px 10px;
    border-color: var(--color-border);
    border-radius: var(--radius-md);
}

    .site-header .navbar-toggler:focus-visible {
        outline: 3px solid var(--color-focus);
        outline-offset: 3px;
    }

@media (max-width: 767.98px) {
    .site-header .navbar-collapse {
        padding-top: 16px;
        padding-bottom: 12px;
    }

    .site-nav {
        gap: 4px;
    }

    .site-header-tools {
        flex-wrap: wrap;
        justify-content: space-between;
        gap: 16px;
        margin: 16px 0 0;
        padding-top: 16px;
        border-top: 1px solid var(--color-border);
    }
}

/* Conference list */

.conf-page {
    max-width: 1240px;
    margin: 0 auto;
    padding: 40px 0 64px;
    color: var(--conf-text);
}

    .conf-page,
    .conf-page * {
        box-sizing: border-box;
    }



.conf-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 32px;
}

.conf-eyebrow {
    margin-bottom: 10px;
    color: var(--conf-primary);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: .18em;
}

.conf-header h1 {
    margin: 0;
    font-size: clamp(1.65rem, 2.5vw, 2.4rem);
    font-weight: 700;
    letter-spacing: -.035em;
    line-height: 1.15;
}

.conf-subtitle {
    max-width: 600px;
    margin: 12px 0 0;
    color: var(--conf-muted);
    font-size: 15px;
    line-height: 1.6;
}

.conf-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 44px;
    padding: 11px 17px;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    font: inherit;
    font-size: 14px;
    font-weight: 650;
    line-height: 1.3;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: background-color .15s ease, border-color .15s ease;
}

.conf-button--primary {
    flex-shrink: 0;
    background: var(--color-primary);
    color: var(--color-surface);
    box-shadow: none;
}

    .conf-button--primary:hover {
        background: var(--color-primary-hover);
        color: var(--color-surface);
    }

    .conf-button--primary > span {
        font-size: 22px;
        font-weight: 400;
    }

.conf-button--edit,
.conf-button--secondary {
    border-color: var(--conf-border);
    background: var(--color-surface);
    color: var(--conf-text);
}

    .conf-button--edit:hover,
    .conf-button--secondary:hover {
        border-color: var(--color-border-hover);
        background: var(--color-surface-soft);
        color: var(--conf-text);
    }

.conf-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    padding: 16px;
    border: 1px solid var(--conf-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    box-shadow: none;
}

.conf-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.conf-filter {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    min-height: 44px;
    padding: 9px 13px;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--conf-muted);
    font: inherit;
    font-size: 13px;
    font-weight: 650;
    cursor: pointer;
}

    .conf-filter > span {
        min-width: 22px;
        padding: 2px 6px;
        border-radius: var(--radius-sm);
        background: var(--color-surface-hover);
        font-size: 11px;
        text-align: center;
    }

    .conf-filter:hover {
        color: var(--conf-text);
        background: var(--color-primary-soft);
    }

    .conf-filter.is-active {
        border-color: var(--conf-border);
        background: var(--color-surface);
        color: var(--conf-primary);
        box-shadow: none;
    }

        .conf-filter.is-active > span {
            background: var(--color-primary-soft);
        }

.conf-search {
    position: relative;
    flex: 1 1 260px;
    max-width: 360px;
}

    .conf-search > svg {
        position: absolute;
        top: 50%;
        left: 14px;
        width: 19px;
        height: 19px;
        color: var(--conf-muted);
        stroke: currentColor;
        stroke-width: 1.7;
        transform: translateY(-50%);
        pointer-events: none;
    }

    .conf-search input {
        width: 100%;
        min-height: 44px;
        padding: 10px 14px 10px 43px;
        border: 1px solid var(--conf-border);
        border-radius: var(--radius-md);
        background: var(--color-surface);
        color: var(--conf-text);
        font: inherit;
        font-size: 14px;
    }

        .conf-search input::placeholder {
            color: var(--color-muted);
        }

.conf-results {
    margin: 20px 2px 14px;
    color: var(--conf-muted);
    font-size: 13px;
}

    .conf-results strong {
        margin-left: 4px;
        color: var(--conf-text);
    }

.conf-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
    gap: 20px;
}

.conf-card {
    display: flex;
    flex-direction: column;
    min-width: 0;
    padding: 24px;
    border: 1px solid var(--conf-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    box-shadow: none;
    transition: border-color .15s ease, background-color .15s ease;
}

    .conf-card:hover {
        border-color: var(--color-border-hover);
        background: #FCFCFD;
        box-shadow: none;
    }

.conf-card__top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 22px;
}

.conf-card__number {
    color: var(--conf-muted);
    font-size: 12px;
    font-weight: 600;
}

.conf-role {
    display: inline-flex;
    align-items: center;
    padding: 5px 9px;
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 700;
}

.conf-role--owner {
    background: var(--color-primary-soft);
    color: var(--color-primary);
}

.conf-role--editor {
    background: var(--color-success-soft);
    color: var(--color-success);
}

.conf-card__title {
    margin: 0 0 14px;
    font-size: 20px;
    font-weight: 700;
    line-height: 1.4;
    letter-spacing: -.02em;
    overflow-wrap: anywhere;
}

    .conf-card__title a {
        color: inherit;
        text-decoration: none;
    }

        .conf-card__title a:hover {
            color: var(--conf-primary);
        }

.conf-card__notice {
    margin: 0 0 16px;
    color: var(--color-warning);
    font-size: 13px;
    line-height: 1.5;
}

.conf-card__details {
    margin-top: auto;
    padding-top: 16px;
}

.conf-participants {
    display: flex;
    align-items: center;
    gap: 9px;
    color: var(--conf-muted);
    font-size: 13px;
    text-decoration: none;
}

    a.conf-participants:hover span { text-decoration: underline; }

    .conf-participants svg {
        flex-shrink: 0;
        width: 20px;
        height: 20px;
        stroke: currentColor;
        stroke-width: 1.6;
        stroke-linecap: round;
    }

    .conf-participants strong {
        margin-left: auto;
        color: var(--conf-text);
        font-size: 16px;
    }

.conf-card__footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
    padding-top: 18px;
    border-top: 1px solid var(--conf-border);
}

.conf-delete {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 8px;
    border-radius: var(--radius-sm);
    color: var(--color-danger);
    font-size: 13px;
    text-decoration: none;
}

    .conf-delete:hover {
        background: var(--color-danger-soft);
        color: var(--color-danger-hover);
    }

.conf-protected {
    flex-basis: 100%;
    color: var(--conf-muted);
    font-size: 11px;
    line-height: 1.5;
}

.conf-empty {
    padding: 56px 24px;
    border: 1px dashed var(--color-border-hover);
    border-radius: var(--radius-lg);
    background: var(--color-surface-soft);
    text-align: center;
}

    .conf-empty h2 {
        margin: 0 0 12px;
        font-size: 24px;
        font-weight: 700;
    }

    .conf-empty p {
        max-width: 480px;
        margin: 0 auto 24px;
        color: var(--conf-muted);
        line-height: 1.7;
    }

.conf-empty__icon {
    display: grid;
    place-items: center;
    width: 64px;
    height: 64px;
    margin: 0 auto 24px;
    border-radius: var(--radius-lg);
    background: var(--color-primary-soft);
    color: var(--conf-primary);
    font-size: 34px;
    font-weight: 300;
}



.conf-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

@media (max-width: 1050px) {
    .conf-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .conf-page {
        padding-top: 24px;
    }

    .conf-header {
        align-items: stretch;
        flex-direction: column;
    }

    .conf-toolbar {
        padding: 12px;
    }

    .conf-search {
        flex-basis: 100%;
        max-width: none;
    }

    .conf-filters {
        width: 100%;
    }

    .conf-filter {
        flex: 1 1 auto;
        padding-right: 9px;
        padding-left: 9px;
    }

    .conf-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .conf-card {
        padding: 20px;
    }
}



/* Conference create/edit form */

.conf-back {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    min-height: 44px;
    margin-bottom: 18px;
    color: var(--conf-muted);
    font-size: 14px;
    text-decoration: none;
}

    .conf-back:hover {
        color: var(--conf-primary);
    }

.conf-create {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 300px;
    align-items: start;
    gap: 28px;
}

.conf-form-panel {
    min-width: 0;
    padding: clamp(20px, 3vw, 36px);
    border: 1px solid var(--conf-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    box-shadow: none;
}

.conf-field {
    margin-bottom: 25px;
}

    .conf-field > label {
        display: flex;
        align-items: baseline;
        flex-wrap: wrap;
        gap: 8px;
        margin-bottom: 9px;
        color: var(--conf-text);
        font-size: 14px;
        font-weight: 650;
    }

.conf-required {
    color: var(--color-danger);
}

.conf-optional {
    color: var(--conf-muted);
    font-size: 12px;
    font-weight: 400;
}

.conf-field input,
.conf-field select,
.conf-field textarea {
    display: block;
    width: 100%;
    min-height: 46px;
    padding: 12px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    color: var(--conf-text);
    font: inherit;
    font-size: 15px;
    line-height: 1.5;
    transition: border-color .15s ease;
}

.conf-field select {
    max-width: 280px;
}

.conf-field textarea {
    min-height: 180px;
    resize: vertical;
}

    .conf-field input::placeholder,
    .conf-field textarea::placeholder {
        color: var(--color-muted);
    }

    .conf-field input:hover,
    .conf-field select:hover,
    .conf-field textarea:hover {
        border-color: var(--color-border-hover);
    }

    .conf-field textarea:focus-visible,
    .conf-field select:focus-visible {
        outline: 3px solid var(--color-focus);
        outline-offset: 3px;
    }

.conf-field__help {
    margin: 9px 0 0;
    color: var(--conf-muted);
    font-size: 12px;
    line-height: 1.6;
}

.conf-field__meta {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 8px;
    color: var(--conf-muted);
    font-size: 12px;
    line-height: 1.5;
}

    .conf-field__meta > :last-child {
        flex-shrink: 0;
        font-variant-numeric: tabular-nums;
    }

.conf-field__error {
    display: block;
    margin-top: 6px;
    color: var(--color-danger);
    font-size: 13px;
    line-height: 1.5;
}

    .conf-field__error:empty {
        display: none;
    }

.conf-field .input-validation-error {
    border-color: var(--color-danger);
    background: var(--color-danger-soft);
}

.conf-validation.validation-summary-valid {
    display: none;
}

.conf-validation.validation-summary-errors {
    margin-bottom: 24px;
    padding: 14px 18px;
    border: 1px solid var(--color-danger-border);
    border-radius: var(--radius-md);
    background: var(--color-danger-soft);
    color: var(--color-danger);
    font-size: 14px;
}

.conf-validation ul {
    margin: 0;
    padding-left: 18px;
}

.conf-validation li + li {
    margin-top: 6px;
}

.conf-form-divider {
    height: 1px;
    margin: 26px 0;
    background: var(--conf-border);
}

.conf-form-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 30px;
    padding-top: 24px;
    border-top: 1px solid var(--conf-border);
}

.conf-tip {
    padding: 26px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-primary-soft);
}

.conf-tip__badge {
    display: inline-block;
    margin-bottom: 18px;
    color: var(--conf-primary);
    font-size: 11px;
    font-weight: 750;
    letter-spacing: .04em;
}

.conf-tip h2 {
    margin: 0 0 12px;
    font-size: 21px;
    font-weight: 700;
    line-height: 1.3;
}

.conf-tip h3 {
    margin: 22px 0 8px;
    font-size: 14px;
    font-weight: 700;
}

.conf-tip p {
    margin: 0;
    color: var(--color-muted);
    font-size: 13px;
    line-height: 1.8;
}

.conf-tip__divider {
    height: 1px;
    margin: 24px 0;
    background: var(--color-border);
}

@media (max-width: 900px) {
    .conf-create {
        grid-template-columns: minmax(0, 1fr);
    }

    .conf-form-aside {
        max-width: none;
    }
}

@media (max-width: 540px) {
    .conf-form-actions {
        flex-direction: column-reverse;
        align-items: stretch;
    }

        .conf-form-actions .conf-button {
            width: 100%;
        }

    .conf-field select {
        max-width: none;
    }
}

/* Conference editor */

.conf-language-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
    padding: 6px;
    border: 1px solid var(--conf-border);
    border-radius: var(--radius-md);
    background: var(--color-surface-soft);
}

.conf-language-tab {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 20px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    color: var(--conf-muted);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: background-color .15s ease, color .15s ease;
}

    .conf-language-tab:hover {
        background: var(--color-primary-soft);
        color: var(--conf-text);
    }

    .conf-language-tab.is-active {
        border-color: var(--color-border);
        background: var(--color-surface);
        color: var(--conf-primary);
        box-shadow: none;
    }

.conf-edit-status {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 26px;
    padding-bottom: 18px;
    border-bottom: 1px solid var(--conf-border);
    color: var(--conf-muted);
    font-size: 13px;
}

    .conf-edit-status strong {
        color: var(--conf-text);
    }

.conf-dirty-badge {
    padding: 5px 9px;
    border-radius: var(--radius-sm);
    background: var(--color-warning-soft);
    color: var(--color-warning);
    font-size: 11px;
    font-weight: 650;
}



@media (max-width: 540px) {
    .conf-language-tab {
        flex: 1 1 calc(50% - 8px);
        padding-right: 12px;
        padding-left: 12px;
    }
}

.conf-delete-panel {
    max-width: 760px;
    padding: 32px;
    background: var(--color-surface);
    border: 1px solid var(--conf-border);
    border-radius: var(--radius-xl);
}

.conf-delete-title {
    margin: 0 0 24px;
    color: var(--conf-text);
    font-size: 1.5rem;
    overflow-wrap: anywhere;
}

.conf-delete-details {
    display: grid;
    gap: 12px;
    margin: 0 0 28px;
}

    .conf-delete-details > div {
        display: flex;
        justify-content: space-between;
        gap: 20px;
    }

    .conf-delete-details dt {
        color: var(--conf-muted);
        font-weight: 400;
    }

    .conf-delete-details dd {
        margin: 0;
        color: var(--conf-text);
        font-weight: 600;
    }

.conf-delete-notice {
    padding: 20px;
    margin-bottom: 24px;
    color: var(--color-warning);
    background: var(--color-warning-soft);
    border: 1px solid var(--color-warning-border);
    border-radius: var(--radius-md);
}

.conf-delete-notice--danger {
    color: var(--color-danger);
    background: var(--color-danger-soft);
    border-color: var(--color-danger-border);
}

.conf-delete-notice p {
    margin: 8px 0 0;
    line-height: 1.6;
}

.conf-delete-actions {
    display: flex;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 12px;
    padding-top: 24px;
    border-top: 1px solid var(--conf-border);
}

.conf-button.conf-button--danger {
    color: var(--color-surface);
    background: var(--color-danger);
    border: 1px solid var(--color-danger);
    cursor: pointer;
}

    .conf-button.conf-button--danger:hover {
        color: var(--color-surface);
        background: var(--color-danger-hover);
        border-color: var(--color-danger-hover);
    }

    .conf-button.conf-button--danger:focus-visible {
        outline: 3px solid var(--color-focus);
        outline-offset: 3px;
    }

@media (max-width: 640px) {
    .conf-delete-panel {
        padding: 22px;
    }

    .conf-delete-actions .conf-button {
        width: 100%;
        justify-content: center;
        text-align: center;
    }
}

.conference-workspace {
    display: grid;
    grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
    min-height: 70vh;
    margin-top: 24px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    background: var(--color-canvas);
    box-shadow: var(--shadow-md);
    margin-bottom: 32px;
}

.conference-sidebar {
    padding: 28px 18px;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--sidebar-border);
    border-radius: var(--radius-xl) 0 0 var(--radius-xl);
    color: var(--sidebar-text);
}

.conference-sidebar-heading {
    margin: 0 12px 14px;
    color: var(--sidebar-muted);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.conference-sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.conference-sidebar-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 14px;
    border-radius: var(--radius-md);
    color: var(--sidebar-text);
    font-size: 0.94rem;
    font-weight: 500;
    text-decoration: none;
    transition: background-color 0.15s ease, color 0.15s ease;
    min-height: 46px;
}

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

    .conference-sidebar-link.is-active {
        color: var(--sidebar-active-text);
        background: var(--sidebar-active-bg);
        font-weight: 600;
        box-shadow: inset 3px 0 0 var(--sidebar-accent);
    }

    .conference-sidebar-link:focus-visible {
        outline: 3px solid var(--color-focus);
        outline-offset: 2px;
    }

.conference-sidebar-event {
    margin-top: 28px;
    padding-top: 24px;
    border-top: 1px solid var(--sidebar-border);
}

.conference-sidebar-title {
    margin: 0 12px 6px;
    color: var(--sidebar-active-text);
    font-weight: 600;
    line-height: 1.5;
    overflow-wrap: anywhere;
}

.conference-sidebar-id {
    display: block;
    margin: 0 12px 18px;
    color: var(--sidebar-muted);
    font-size: 0.8rem;
}

.conference-workspace-content {
    min-width: 0;
}

    /* Отступы существующих страниц внутри нового layout. */
    .conference-workspace-content .conf-page {
        max-width: none;
        margin: 0;
        padding: 32px;
    }

    /* Sidebar уменьшает доступную ширину содержимого. */
    .conference-workspace-content .conf-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

@media (max-width: 1199.98px) {
    .conference-workspace-content .conf-create {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (max-width: 991.98px) {
    .conference-workspace {
        grid-template-columns: 210px minmax(0, 1fr);
    }

    .conference-sidebar {
        padding: 24px 12px;
    }

    .conference-workspace-content .conf-page {
        padding: 24px;
    }

    .conference-workspace-content .conf-grid {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (max-width: 767.98px) {
    .conference-workspace {
        grid-template-columns: minmax(0, 1fr);
        margin-top: 16px;
    }

    .conference-sidebar {
        border-right: 0;
        border-bottom: 1px solid var(--color-border);
        border-radius: var(--radius-xl) var(--radius-xl) 0 0;
        padding: 18px;
    }

    .conference-sidebar-nav {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .conference-sidebar-event {
        margin-top: 18px;
        padding-top: 18px;
    }

    .conference-workspace-content .conf-page {
        padding: 24px 18px;
    }
}
/* Respect system accessibility preferences. */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation: none !important;
        transition: none !important;
        scroll-behavior: auto !important;
    }
}

/* Registration form builder — independent text options per language. */
.form-builder {
    min-width: 0;
}

.fb-topbar, .fb-add-controls, .fb-checks, .fb-preview-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.fb-topbar {
    margin-bottom: 8px;
}

.fb-languages {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

    .fb-languages .conf-language-tab {
        padding-inline: 12px;
    }

.fb-columns {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 24px;
    margin-top: 24px;
    align-items: start;
}

.fb-edit-area, .fb-preview-area {
    min-width: 0;
}

.fb-add-bar, .fb-editor, .fb-preview-area {
    padding: 22px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    box-shadow: none;
}

    .fb-add-bar > label {
        display: block;
        margin-bottom: 10px;
        font-size: .85rem;
        font-weight: 600;
    }

.fb-add-controls {
    flex-wrap: nowrap;
}

    .fb-add-controls select {
        min-width: 0;
    }

    .fb-add-controls button {
        flex-shrink: 0;
    }

.fb-field-list {
    list-style: none;
    padding: 0;
    margin: 16px 0;
    display: grid;
    gap: 8px;
}

.fb-field-row {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
}

    .fb-field-row.is-selected {
        border-color: var(--color-primary);
        box-shadow: inset 3px 0 var(--color-primary);
        background: var(--color-primary-soft);
    }

.fb-field-select {
    flex: 1;
    min-width: 0;
    padding: 12px;
    border: 0;
    background: transparent;
    text-align: left;
    color: var(--color-text);
    cursor: pointer;
}

    .fb-field-select strong, .fb-field-select small {
        display: block;
        overflow-wrap: anywhere;
    }

    .fb-field-select strong {
        font-size: .9rem;
    }

    .fb-field-select small {
        margin-top: 3px;
        color: var(--color-muted);
        font-size: .75rem;
    }

.fb-icon-button {
    display: inline-grid;
    place-items: center;
    min-width: 40px;
    min-height: 44px;
    border: 0;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--color-muted);
    font-size: 1.2rem;
    cursor: pointer;
}

    .fb-icon-button:hover {
        color: var(--color-primary);
        background: var(--color-primary-soft);
    }

    .fb-icon-button:disabled {
        opacity: .35;
        cursor: not-allowed;
    }

.fb-editor h2, .fb-preview-heading h2 {
    font-size: 1.2rem;
    margin: 0 0 20px;
}

.fb-preview-heading h2 {
    margin: 6px 0;
}

.fb-editor h3 {
    font-size: 1rem;
    margin: 18px 0 8px;
}

.fb-editor .conf-field {
    margin-bottom: 18px;
}

    .fb-editor .conf-field textarea {
        min-height: 100px;
    }

    .fb-editor .conf-field select {
        max-width: none;
    }

.fb-checks {
    justify-content: flex-start;
    gap: 20px;
    margin: 20px 0;
}

    .fb-checks label {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: .85rem;
    }

    .fb-checks input {
        accent-color: var(--color-primary);
        width: 18px;
        height: 18px;
    }

.fb-advanced {
    border-top: 1px solid var(--color-border);
    padding-top: 14px;
    margin: 20px 0;
}

    .fb-advanced summary {
        cursor: pointer;
        color: var(--color-muted);
        margin-bottom: 18px;
        font-size: .85rem;
    }

.fb-empty {
    padding: 24px;
    color: var(--color-muted);
    text-align: center;
    border: 1px dashed var(--color-border);
    border-radius: var(--radius-md);
}

.fb-message, .fb-protection, .fb-missing {
    padding: 12px 16px;
    margin-bottom: 16px;
    border-radius: var(--radius-md);
    font-size: .85rem;
    overflow-wrap: anywhere;
}

.fb-message {
    color: var(--color-success);
    background: var(--color-success-soft);
}

    .fb-message.is-error, #previewError {
        color: var(--color-danger);
        background: var(--color-danger-soft);
    }

.fb-protection, .fb-missing {
    color: var(--color-warning);
    background: var(--color-warning-soft);
}

.fb-preview-area {
    position: sticky;
    top: 20px;
}

    .fb-preview-area > .conf-field__help {
        margin-bottom: 24px;
    }

#formPreview[aria-busy="true"] {
    opacity: .65;
}

.rf-field {
    margin-bottom: 22px;
}

    .rf-field > label, .rf-field legend {
        display: block;
        margin-bottom: 8px;
        font-size: .9rem;
        font-weight: 600;
        overflow-wrap: anywhere;
    }

    .rf-field fieldset {
        min-width: 0;
        border: 0;
        padding: 0;
        margin: 0;
    }

    .rf-field input:not([type="checkbox"]):not([type="radio"]), .rf-field select, .rf-field textarea {
        display: block;
        width: 100%;
        min-width: 0;
        min-height: 46px;
        padding: 10px 12px;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        background: var(--color-surface);
        color: var(--color-text);
        font: inherit;
    }

    .rf-field textarea {
        resize: vertical;
    }

    .rf-field .rf-choice {
        display: flex;
        align-items: baseline;
        gap: 10px;
        margin-bottom: 10px;
        font-weight: 400;
        overflow-wrap: anywhere;
    }

.rf-choice input {
    flex-shrink: 0;
    width: 17px;
    height: 17px;
    accent-color: var(--color-primary);
}

.rf-choice-text { min-width: 0; }
.rf-option-description { display: block; margin-top: 3px; font-size: .9rem; font-weight: 400; color: var(--color-text-muted, #52676c); white-space: pre-wrap; overflow-wrap: anywhere; }

.fb-mobile-tabs {
    display: none;
}

@media (max-width: 1100px) {
    .fb-columns {
        grid-template-columns: minmax(0, 1fr);
    }

    .fb-preview-area {
        position: static;
    }

    .fb-mobile-tabs {
        display: flex;
        gap: 8px;
        margin-top: 20px;
    }

        .fb-mobile-tabs [aria-pressed="true"] {
            color: var(--color-primary);
            background: var(--color-primary-soft);
            border-color: var(--color-primary);
        }

    .fb-columns[data-mobile-view="edit"] .fb-preview-area,
    .fb-columns[data-mobile-view="preview"] .fb-edit-area {
        display: none;
    }
}

@media (max-width: 540px) {
    .fb-editor, .fb-add-bar, .fb-preview-area {
        padding: 16px;
    }

    .fb-add-controls {
        flex-wrap: wrap;
    }

        .fb-add-controls button, .fb-languages {
            width: 100%;
        }

            .fb-languages button {
                flex: 1 1 calc(50% - 4px);
            }

    .fb-checks {
        gap: 12px;
    }
}

.fb-options-text {
    display: block;
    width: 100%;
    min-height: 220px;
    margin-top: 10px;
    padding: 12px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    color: var(--color-text);
    font: inherit;
    line-height: 1.7;
    resize: vertical;
    white-space: pre-wrap;
}

/* Account pages */
.ep-account {
    max-width: 480px;
    margin: clamp(24px, 7vh, 80px) auto;
    padding: clamp(22px, 4vw, 40px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-surface);
    color: var(--color-text);
    box-shadow: none;
}

    .ep-account h1 {
        margin: 0 0 24px;
        color: var(--color-text);
        font-size: 1.7rem;
        font-weight: 600;
        line-height: 1.2;
        letter-spacing: -.025em;
    }

.ep-account__field {
    display: grid;
    gap: 7px;
    margin: 18px 0;
}

    .ep-account__field label {
        color: var(--color-text);
        font-size: .875rem;
        font-weight: 500;
    }

    .ep-account__field input {
        width: 100%;
        min-height: 44px;
        box-sizing: border-box;
        padding: 10px 12px;
        border: 1px solid var(--color-border);
        border-radius: var(--radius-md);
        background: var(--color-surface);
        color: var(--color-text);
        font: inherit;
        font-size: .95rem;
        transition: border-color .15s ease, box-shadow .15s ease;
    }

        .ep-account__field input:hover {
            border-color: var(--color-border-hover);
        }

        .ep-account__field input:focus {
            border-color: var(--color-primary);
            outline: 0;
            box-shadow: 0 0 0 3px rgb(23 105 224 / 10%);
        }

.ep-account input:focus-visible,
.ep-account button:focus-visible,
.ep-account a:focus-visible {
    outline: 2px solid var(--color-focus);
    outline-offset: 2px;
}

.ep-account__submit {
    width: 100%;
    min-height: 44px;
    padding: 10px 16px;
    margin-top: 20px;
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-md);
    background: var(--color-primary);
    color: #fff;
    font: inherit;
    font-size: .925rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color .15s ease, border-color .15s ease;
}

    .ep-account__submit:hover {
        background: var(--color-primary-hover);
        border-color: var(--color-primary-hover);
    }

    .ep-account__submit:disabled {
        opacity: .55;
        cursor: not-allowed;
    }

.ep-account__hint {
    color: var(--color-muted);
    font-size: .875rem;
    line-height: 1.5;
}

.ep-account__errors {
    color: var(--color-danger);
    font-size: .875rem;
}

    .ep-account__errors ul {
        padding-left: 20px;
    }

.ep-account__check {
    display: flex;
    align-items: center;
    gap: 9px;
}

    .ep-account__check input[type="checkbox"] {
        width: 16px;
        height: 16px;
        margin: 0;
        accent-color: var(--color-primary);
    }

.ep-account__links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px 18px;
    margin-top: 24px;
    font-size: .875rem;
}

.ep-account a,
.ep-account-links a {
    color: var(--color-primary);
    text-decoration: none !important;
}

    .ep-account a:hover,
    .ep-account-links a:hover {
        color: var(--color-primary-hover);
        text-underline-offset: 3px;
    }

.ep-account-links {
    display: flex;
    align-items: center;
    gap: 16px;
}

    .ep-account-links form {
        margin: 0;
    }

    .ep-account-links button {
        border: 0;
        background: none;
        color: var(--color-primary);
        font: inherit;
        cursor: pointer;
        padding: 8px;
    }

        .ep-account-links button:hover {
            color: var(--color-primary-hover);
        }

.ep-account .input-validation-error {
    border-color: var(--color-danger);
    background: var(--color-danger-soft);
}

@media (max-width: 767.98px) {
    .site-logo {
        height: 40px;
    }
}

@media (max-width: 540px) {
    .ep-account {
        margin: 20px 0;
        padding: 22px;
    }

        .ep-account h1 {
            font-size: 1.45rem;
        }
}

.conf-card__preview{display:block;width:100%;aspect-ratio:1200/630;overflow:hidden;border-radius:10px;background:var(--bs-tertiary-bg,#f4f7f8);margin-bottom:18px}
.conf-card__preview img{display:block;width:100%;height:100%;object-fit:contain}
.conf-card__preview:focus-visible{outline:3px solid #175cd3;outline-offset:3px}

.conf-card__footer{flex-wrap:wrap}