.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid red;
}

.validation-message {
    color: red;
}

#blazor-error-ui {
    color-scheme: light only;
    background: lightyellow;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    box-sizing: border-box;
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

    #blazor-error-ui .dismiss {
        cursor: pointer;
        position: absolute;
        right: 0.75rem;
        top: 0.5rem;
    }

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.loading-progress {
    position: absolute;
    display: block;
    width: 8rem;
    height: 8rem;
    inset: 20vh 0 auto 0;
    margin: 0 auto 0 auto;
}

    .loading-progress circle {
        fill: none;
        stroke: #e0e0e0;
        stroke-width: 0.6rem;
        transform-origin: 50% 50%;
        transform: rotate(-90deg);
    }

        .loading-progress circle:last-child {
            stroke: #1b6ec2;
            stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
            transition: stroke-dasharray 0.05s ease-in-out;
        }

.loading-progress-text {
    position: absolute;
    text-align: center;
    font-weight: bold;
    inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
}

    .loading-progress-text:after {
        content: var(--blazor-load-percentage-text, "Loading");
    }

code {
    color: #c02d76;
}

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

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

/* ===== Chappman App ===== */

:root {
    --cp-bg: #f2f4f8;
    --cp-surface: #ffffff;
    --cp-border: #e2e5eb;
    --cp-text: #1f2430;
    --cp-muted: #6b7280;
    --cp-primary: #4f6df5;
    --cp-primary-hover: #3d59db;
    --cp-secondary: #eef0f7;
    --cp-secondary-hover: #dfe3f0;
    --cp-danger: #d94f4f;
    --cp-success: #2f9e63;
    --cp-radius: 12px;
    --cp-shadow: 0 1px 3px rgba(20, 22, 30, 0.08), 0 8px 24px rgba(20, 22, 30, 0.06);
}

@media (prefers-color-scheme: dark) {
    :root {
        --cp-bg: #14161c;
        --cp-surface: #1d2028;
        --cp-border: #2c303a;
        --cp-text: #e7e9ee;
        --cp-muted: #9aa0ac;
        --cp-primary: #6c85ff;
        --cp-primary-hover: #8296ff;
        --cp-secondary: #262a34;
        --cp-secondary-hover: #30343f;
        --cp-danger: #ef6b6b;
        --cp-success: #4fbf87;
        --cp-shadow: 0 1px 3px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.25);
    }
}

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

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    background: var(--cp-bg);
    color: var(--cp-text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

h1, h2, h3 {
    margin: 0 0 0.75rem 0;
}

.muted {
    color: var(--cp-muted);
}

.error {
    color: var(--cp-danger);
    display: block;
    margin-top: 0.5rem;
}

.info {
    color: var(--cp-success);
    display: block;
    margin-top: 0.5rem;
}

.card {
    background: var(--cp-surface);
    border: 1px solid var(--cp-border);
    border-radius: var(--cp-radius);
    box-shadow: var(--cp-shadow);
    padding: 1.25rem;
}

.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 50;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.modal-card {
    width: 100%;
    max-width: 360px;
    text-align: center;
}

    .modal-card h3 {
        margin-bottom: 0.5rem;
    }

.modal-actions {
    display: flex;
    gap: 0.6rem;
    margin-top: 1rem;
}

    .modal-actions .btn {
        flex: 1;
    }

.hp-field {
    position: absolute;
    left: -5000px;
    width: 1px;
    height: 1px;
    opacity: 0;
    overflow: hidden;
}

.input {
    width: 100%;
    box-sizing: border-box;
    padding: 0.65rem 0.85rem;
    border: 1px solid var(--cp-border);
    border-radius: 8px;
    background: var(--cp-surface);
    color: var(--cp-text);
    font-size: 0.95rem;
    margin-bottom: 0.6rem;
}

    .input:focus {
        outline: none;
        border-color: var(--cp-primary);
        box-shadow: 0 0 0 3px color-mix(in srgb, var(--cp-primary) 20%, transparent);
    }

.btn {
    border: none;
    border-radius: 8px;
    padding: 0.6rem 1.1rem;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.15s ease, transform 0.05s ease;
}

    .btn:active {
        transform: translateY(1px);
    }

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

.btn-primary {
    background: var(--cp-primary);
    color: white;
}

    .btn-primary:hover:not(:disabled) {
        background: var(--cp-primary-hover);
    }

.btn-secondary {
    background: var(--cp-secondary);
    color: var(--cp-text);
}

    .btn-secondary:hover:not(:disabled) {
        background: var(--cp-secondary-hover);
    }

.btn-ghost {
    background: transparent;
    color: var(--cp-text);
}

    .btn-ghost:hover:not(:disabled) {
        background: var(--cp-secondary);
    }

/* Login */

.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.login {
    width: 100%;
    max-width: 360px;
    text-align: center;
}

.brand {
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--cp-primary);
}

.login .btn {
    display: block;
    width: 100%;
    margin-top: 0.5rem;
}

.switch-mode {
    margin-top: 0.75rem;
    font-size: 0.9rem;
}

    .switch-mode a {
        color: var(--cp-primary);
        text-decoration: none;
    }

        .switch-mode a:hover {
            text-decoration: underline;
        }

/* App shell (Profile page) */

.app-shell {
    max-width: 720px;
    margin: 0 auto;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.topbar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.9rem 1rem;
    border-bottom: 1px solid var(--cp-border);
    background: var(--cp-surface);
}

    .topbar .brand {
        flex: 1;
        text-align: left;
    }

/* Chat shell (two-pane layout, WhatsApp-style) */

.chat-shell {
    height: 100vh;
    display: flex;
}

.row {
    display: flex;
    gap: 0.6rem;
    align-items: flex-start;
}

    .row .input {
        margin-bottom: 0;
    }

.btn-icon {
    width: 2.4rem;
    height: 2.4rem;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    padding: 0;
    font-size: 1.1rem;
    line-height: 1;
}

.menu-wrapper {
    position: relative;
}

.menu-overlay {
    position: fixed;
    inset: 0;
    z-index: 40;
    background: transparent;
}

.dropdown-menu {
    position: absolute;
    top: calc(100% + 0.4rem);
    right: 0;
    z-index: 41;
    min-width: 180px;
    background: var(--cp-surface);
    border: 1px solid var(--cp-border);
    border-radius: var(--cp-radius);
    box-shadow: var(--cp-shadow);
    padding: 0.4rem;
    display: flex;
    flex-direction: column;
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    width: 100%;
    background: transparent;
    border: none;
    text-align: left;
    padding: 0.55rem 0.7rem;
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--cp-text);
    cursor: pointer;
}

    .dropdown-item:hover {
        background: var(--cp-secondary);
    }

    .dropdown-item i {
        width: 1.1rem;
        text-align: center;
        color: var(--cp-muted);
    }

.sidebar {
    width: 320px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--cp-border);
    background: var(--cp-surface);
    min-height: 0;
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem;
    border-bottom: 1px solid var(--cp-border);
}

    .sidebar-header .profile-link {
        flex: 1;
        min-width: 0;
    }

        .sidebar-header .profile-link span {
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

.sidebar-toolbar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.5rem 0 0.5rem;
}

    .sidebar-toolbar .tabs {
        flex: 1;
        padding: 0;
        border-bottom: none;
    }

.create-room-form {
    display: flex;
    gap: 0.5rem;
    padding: 0.6rem 0.75rem;
}

    .create-room-form .input {
        margin-bottom: 0;
    }

.sidebar-list {
    flex: 1;
    overflow-y: auto;
    padding: 0.5rem;
}

.sidebar-heading {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--cp-muted);
    margin: 0.75rem 0.5rem 0.4rem 0.5rem;
}

.sidebar-empty {
    padding: 0.5rem;
}

.sidebar-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.7rem 0.6rem;
    border-radius: 8px;
    cursor: pointer;
}

    .sidebar-item:hover {
        background: var(--cp-secondary);
    }

    .sidebar-item.active {
        background: color-mix(in srgb, var(--cp-primary) 15%, transparent);
    }

.add-contact-form {
    padding: 0.75rem 0.6rem;
    border-top: 1px solid var(--cp-border);
    margin-top: 0.5rem;
}

.chat-pane {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.chat-empty {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-header {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--cp-border);
    background: var(--cp-surface);
}

    .chat-header h2 {
        margin: 0;
        flex: 1;
        font-size: 1.1rem;
    }

.btn-back {
    display: none;
}

.profile-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--cp-text);
    font-weight: 600;
    padding: 0.3rem 0.5rem;
    border-radius: 8px;
}

    .profile-link:hover {
        background: var(--cp-secondary);
    }

    .profile-link.static {
        cursor: default;
    }

        .profile-link.static:hover {
            background: transparent;
        }

.avatar {
    border-radius: 50%;
    object-fit: cover;
    background: var(--cp-secondary);
}

.avatar-sm {
    width: 28px;
    height: 28px;
}

.avatar-lg {
    width: 96px;
    height: 96px;
    margin-bottom: 0.75rem;
}

.room-name {
    font-weight: 600;
    flex: 1;
}

/* Tabs */

.tabs {
    display: flex;
    gap: 0.25rem;
    padding: 0.75rem 1rem 0 1rem;
    border-bottom: 1px solid var(--cp-border);
}

.tab {
    position: relative;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.6rem 1rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--cp-muted);
    border-bottom: 2px solid transparent;
}

    .tab.active {
        color: var(--cp-primary);
        border-bottom-color: var(--cp-primary);
    }

.badge {
    display: inline-block;
    min-width: 1.2rem;
    padding: 0.05rem 0.35rem;
    margin-left: 0.35rem;
    background: var(--cp-danger);
    color: white;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
}

/* Contact requests */

.request-card {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem 0.75rem;
    padding: 0.75rem 1rem;
    margin-bottom: 0.5rem;
}

.request-actions {
    flex-basis: 100%;
    display: flex;
    gap: 0.5rem;
}

    .request-actions .btn {
        flex: 1;
    }

/* Member management */

.members {
    margin: 0 1rem 0.75rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.member-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.3rem 0;
}

.member-name {
    font-weight: 600;
    flex: 1;
}

.role-badge {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.15rem 0.5rem;
    border-radius: 999px;
    background: var(--cp-secondary);
    color: var(--cp-muted);
    text-transform: uppercase;
}

    .role-badge.role-owner {
        background: color-mix(in srgb, var(--cp-primary) 20%, transparent);
        color: var(--cp-primary);
    }

    .role-badge.role-admin {
        background: color-mix(in srgb, var(--cp-success) 20%, transparent);
        color: var(--cp-success);
    }

.role-select {
    padding: 0.3rem 0.5rem;
    border-radius: 8px;
    border: 1px solid var(--cp-border);
    background: var(--cp-surface);
    color: var(--cp-text);
    font-size: 0.85rem;
}

.btn-danger {
    background: transparent;
    color: var(--cp-danger);
    border: 1px solid var(--cp-danger);
}

    .btn-danger:hover:not(:disabled) {
        background: var(--cp-danger);
        color: white;
    }

.add-member {
    margin: 0 1rem 0.75rem 1rem;
}

.user-preview {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 0.75rem;
    padding: 0.4rem 0.6rem;
    background: var(--cp-secondary);
    border-radius: 8px;
    font-size: 0.9rem;
    width: fit-content;
}

    .user-preview.not-found {
        color: var(--cp-danger);
        background: transparent;
        padding-left: 0;
    }

.messages {
    flex: 1;
    overflow-y: auto;
    padding: 0.75rem 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.bubble-row {
    display: flex;
}

    .bubble-row.mine {
        justify-content: flex-end;
    }

    .bubble-row.theirs {
        justify-content: flex-start;
    }

.bubble {
    background: var(--cp-surface);
    border: 1px solid var(--cp-border);
    border-radius: var(--cp-radius);
    padding: 0.5rem 0.75rem;
    max-width: 70%;
    word-break: break-word;
    display: flex;
    flex-direction: column;
}

.bubble-row.mine .bubble {
    background: var(--cp-primary);
    color: white;
    border-color: var(--cp-primary);
}

.bubble-sender {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--cp-primary);
    margin-bottom: 0.15rem;
}

.bubble-text {
    white-space: pre-wrap;
}

.composer-wrapper {
    position: relative;
    border-top: 1px solid var(--cp-border);
    background: var(--cp-surface);
}

.composer {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.9rem 1rem;
}

    .composer .input {
        margin-bottom: 0;
    }

.emoji-picker {
    position: absolute;
    bottom: 100%;
    left: 1rem;
    right: 1rem;
    max-height: 200px;
    overflow-y: auto;
    display: flex;
    flex-wrap: wrap;
    gap: 0.25rem;
    padding: 0.6rem;
    background: var(--cp-surface);
    border: 1px solid var(--cp-border);
    border-radius: var(--cp-radius);
    box-shadow: var(--cp-shadow);
}

.emoji-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 1.3rem;
    padding: 0.25rem;
    border-radius: 6px;
}

    .emoji-btn:hover {
        background: var(--cp-secondary);
    }

/* Profile page */

.profile-page {
    padding: 1.5rem 1rem;
    display: flex;
    justify-content: center;
}

.profile-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 100%;
    max-width: 360px;
}

.upload-btn {
    margin-top: 0.5rem;
    display: inline-block;
}

.download-app-btn {
    margin-top: 1.25rem;
    display: inline-block;
    text-decoration: none;
}

.webauthn-section {
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--cp-border);
    width: 100%;
    text-align: left;
}

.credential-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.4rem 0;
    font-size: 0.9rem;
}

.hidden-file-input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    overflow: hidden;
    pointer-events: none;
}

/* Mobile: show either sidebar or chat, not both (like WhatsApp) */

@media (max-width: 768px) {
    .sidebar {
        width: 100%;
    }

    .btn-back {
        display: inline-flex;
    }

    .chat-shell:not(.has-chat) .chat-pane {
        display: none;
    }

    .chat-shell.has-chat .sidebar {
        display: none;
    }
}