:root {
    --nca-primary: #111827;
    --nca-accent: #2563eb;
    --nca-text: #ffffff;
    --nca-bg: #f8fafc;
    --nca-border: #e5e7eb;
    --nca-muted: #6b7280;
}

.nca-chat-shell {
    position: fixed;
    z-index: 99999;
    font-family: Arial, sans-serif;
}

.nca-pos-bottom-right { right: 20px; bottom: 20px; }
.nca-pos-bottom-left { left: 20px; bottom: 20px; }
.nca-pos-middle-right { right: 20px; top: 50%; transform: translateY(-50%); }
.nca-pos-middle-left { left: 20px; top: 50%; transform: translateY(-50%); }

.nca-chat-launcher {
    border: 0;
    background: linear-gradient(135deg, var(--nca-primary), var(--nca-accent));
    color: var(--nca-text);
    padding: 12px 18px;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 600;
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.24);
}

.nca-chat-launcher.is-hidden {
    display: none;
}

.nca-launcher-icon {
    margin-right: 6px;
}

.nca-chat-panel {
    display: none;
    width: 390px;
    max-width: calc(100vw - 24px);
    height: 590px;
    max-height: calc(100vh - 90px);
    background: #ffffff;
    border-radius: 22px;
    overflow: hidden;
    box-shadow: 0 26px 80px rgba(0, 0, 0, 0.28);
    border: 1px solid var(--nca-border);
}

.nca-chat-panel.is-open {
    display: flex;
    flex-direction: column;
}

.nca-chat-header {
    background: linear-gradient(135deg, var(--nca-primary), var(--nca-accent));
    color: var(--nca-text);
    padding: 14px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nca-chat-title {
    font-weight: 600;
    font-size: 15px;
}

.nca-chat-close {
    border: 0;
    background: rgba(255,255,255,0.14);
    color: var(--nca-text);
    font-size: 23px;
    cursor: pointer;
    line-height: 1;
    width: 34px;
    height: 34px;
    border-radius: 50%;
}

.nca-chat-body {
    flex: 1;
    padding: 14px;
    overflow-y: auto;
    background: var(--nca-bg);
}

.nca-message {
    max-width: 86%;
    margin-bottom: 10px;
    padding: 11px 13px;
    border-radius: 16px;
    font-size: 14px;
    line-height: 1.45;
    font-weight: 400;
}

.nca-message-agent {
    background: #ffffff;
    color: #111827;
    border: 1px solid var(--nca-border);
    margin-right: auto;
}

.nca-message-user {
    background: linear-gradient(135deg, var(--nca-primary), var(--nca-accent));
    color: var(--nca-text);
    margin-left: auto;
}

.nca-typing {
    display: flex;
    gap: 5px;
    width: fit-content;
    background: #ffffff;
    border: 1px solid var(--nca-border);
    border-radius: 16px;
    padding: 12px 14px;
    margin-bottom: 10px;
}

.nca-typing span {
    width: 7px;
    height: 7px;
    background: var(--nca-muted);
    border-radius: 50%;
    display: block;
    animation: ncaTyping 1s infinite ease-in-out;
}

.nca-typing span:nth-child(2) { animation-delay: .15s; }
.nca-typing span:nth-child(3) { animation-delay: .3s; }

@keyframes ncaTyping {
    0%, 80%, 100% { opacity: .35; transform: translateY(0); }
    40% { opacity: 1; transform: translateY(-4px); }
}

.nca-result-box {
    display: none;
    background: #ffffff;
    border-top: 1px solid var(--nca-border);
    padding: 10px;
    max-height: 180px;
    overflow-y: auto;
}

.nca-result-box.is-open {
    display: block;
}

.nca-result-card,
.nca-dashboard-item,
.nca-admin-card {
    border: 1px solid var(--nca-border);
    border-radius: 15px;
    padding: 12px;
    background: #ffffff;
}

.nca-result-card {
    margin-bottom: 8px;
}

.nca-result-title {
    font-weight: 500;
    color: #111827;
    font-size: 13px;
    line-height: 1.4;
    margin-bottom: 8px;
}

.nca-result-link,
.nca-chat-send,
.nca-newsletter-save,
.nca-dashboard-btn,
.nca-post-newsletter-trigger,
.nca-auth-submit,
.nca-page-btn {
    border: 0;
    background: linear-gradient(135deg, var(--nca-primary), var(--nca-accent));
    color: var(--nca-text);
    border-radius: 999px;
    padding: 10px 15px;
    cursor: pointer;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.nca-page-btn:disabled,
.nca-post-newsletter-trigger:disabled {
    background: #e5e7eb;
    color: #374151;
    cursor: default;
}

.nca-chat-suggestions {
    padding: 10px;
    display: flex;
    gap: 7px;
    flex-wrap: wrap;
    background: #ffffff;
    border-top: 1px solid var(--nca-border);
}

.nca-suggestion-btn,
.nca-suggestion-link,
.nca-newsletter-mode-btn,
.nca-newsletter-mode-link,
.nca-auth-link,
.nca-auth-switch,
.nca-dashboard-nav {
    border: 1px solid #d1d5db;
    background: #ffffff;
    color: #111827;
    padding: 8px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
}

.nca-suggestion-btn:hover,
.nca-suggestion-link:hover,
.nca-newsletter-mode-btn.is-active,
.nca-dashboard-nav.is-active,
.nca-auth-primary {
    background: linear-gradient(135deg, var(--nca-primary), var(--nca-accent));
    color: var(--nca-text);
    border-color: transparent;
}

.nca-chat-form {
    display: flex;
    padding: 11px;
    gap: 8px;
    background: #ffffff;
    border-top: 1px solid var(--nca-border);
}

.nca-chat-input,
.nca-newsletter-input,
.nca-auth-input,
.nca-dashboard-search {
    width: 100%;
    border: 1px solid #d1d5db;
    border-radius: 14px;
    padding: 12px 13px;
    font-weight: 400;
    outline: none;
    box-sizing: border-box;
    background: #ffffff;
}

.nca-chat-input {
    flex: 1;
    min-width: 0;
    border-radius: 999px;
}

.nca-chat-input:focus,
.nca-newsletter-input:focus,
.nca-auth-input:focus,
.nca-dashboard-search:focus {
    border-color: var(--nca-accent);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.nca-newsletter-box {
    display: none;
    padding: 12px;
    background: #ffffff;
    border-top: 1px solid var(--nca-border);
    max-height: 320px;
    overflow-y: auto;
}

.nca-newsletter-box.is-open {
    display: block;
}

.nca-newsletter-title,
.nca-standalone-title,
.nca-dashboard-title {
    font-weight: 600;
    color: #111827;
    margin-bottom: 12px;
    font-size: 18px;
}

.nca-newsletter-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.nca-category-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 8px 0;
}

.nca-category-item {
    border: 1px solid #d1d5db;
    border-radius: 999px;
    padding: 8px 10px;
    font-size: 12px;
    font-weight: 400;
    cursor: pointer;
    display: flex;
    gap: 6px;
    align-items: center;
    background: #ffffff;
}

.nca-category-item:hover {
    border-color: var(--nca-accent);
    background: var(--nca-bg);
}

.nca-category-checkbox {
    margin: 0;
}

.nca-newsletter-actions {
    display: flex;
    gap: 8px;
    margin-top: 10px;
}

.nca-newsletter-cancel {
    border: 0;
    border-radius: 999px;
    padding: 10px 15px;
    font-weight: 500;
    cursor: pointer;
    background: #e5e7eb;
    color: #111827;
}

.nca-post-newsletter {
    margin: 24px 0;
    font-family: Arial, sans-serif;
}

.nca-newsletter-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 100000;
    background: rgba(17, 24, 39, 0.58);
    padding: 20px;
    overflow-y: auto;
}

.nca-newsletter-modal.is-open {
    display: flex;
    align-items: center;
    justify-content: center;
}

.nca-newsletter-modal-card {
    position: relative;
    background: #ffffff;
    border-radius: 22px;
    width: 430px;
    max-width: 100%;
    padding: 20px;
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.3);
}

.nca-newsletter-modal-close {
    position: absolute;
    right: 12px;
    top: 10px;
    border: 0;
    background: #f3f4f6;
    color: #111827;
    font-size: 22px;
    cursor: pointer;
    width: 34px;
    height: 34px;
    border-radius: 50%;
}

.nca-newsletter-mode {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 12px;
}

.nca-public-status,
.nca-auth-status {
    margin-top: 10px;
    font-weight: 500;
    color: #111827;
}

.nca-auth-page {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 16px;
    background:
        radial-gradient(circle at top left, rgba(37, 99, 235, 0.12), transparent 35%),
        radial-gradient(circle at bottom right, rgba(17, 24, 39, 0.10), transparent 35%),
        var(--nca-bg);
    font-family: Arial, sans-serif;
}

.nca-auth-card {
    width: 420px;
    max-width: 100%;
    background: #ffffff;
    border: 1px solid var(--nca-border);
    border-radius: 24px;
    padding: 26px;
    box-shadow: 0 24px 70px rgba(15, 23, 42, 0.14);
}

.nca-auth-title {
    font-size: 26px;
    font-weight: 700;
    color: #111827;
    margin-bottom: 6px;
}

.nca-auth-subtitle {
    color: #4b5563;
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 18px;
}

.nca-auth-submit {
    width: 100%;
    margin-top: 4px;
}

.nca-auth-center-link {
    box-sizing: border-box;
}

.nca-auth-switch {
    margin-top: 14px;
    width: 100%;
    box-sizing: border-box;
}

.nca-dashboard-shell {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 18px;
    margin: 24px 0;
    font-family: Arial, sans-serif;
}

.nca-dashboard-sidebar,
.nca-dashboard-content,
.nca-admin-panel {
    background: #ffffff;
    border: 1px solid var(--nca-border);
    border-radius: 22px;
    padding: 18px;
    box-shadow: 0 16px 45px rgba(15, 23, 42, 0.08);
}

.nca-dashboard-user-card {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-bottom: 16px;
}

.nca-dashboard-avatar {
    width: 46px;
    height: 46px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--nca-primary), var(--nca-accent));
    color: var(--nca-text);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.nca-dashboard-user-name {
    font-weight: 600;
    color: #111827;
}

.nca-dashboard-user-email {
    font-size: 12px;
    color: var(--nca-muted);
    word-break: break-all;
}

.nca-dashboard-nav {
    display: flex;
    width: 100%;
    margin-bottom: 8px;
    box-sizing: border-box;
    justify-content: flex-start;
}

.nca-dashboard-section {
    display: none;
}

.nca-dashboard-section.is-active {
    display: block;
}

.nca-dashboard-header {
    display: grid;
    grid-template-columns: 1fr 260px;
    gap: 12px;
    align-items: center;
    margin-bottom: 14px;
}

.nca-dashboard-list {
    display: grid;
    gap: 10px;
}

.nca-dashboard-event {
    font-weight: 600;
    color: #111827;
    text-transform: capitalize;
}

.nca-dashboard-value {
    color: #374151;
    margin-top: 4px;
}

.nca-dashboard-date {
    color: var(--nca-muted);
    margin-top: 4px;
    font-size: 12px;
}

.nca-dashboard-empty {
    padding: 14px;
    border-radius: 14px;
    background: var(--nca-bg);
    color: #374151;
}

.nca-dashboard-pagination {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-top: 14px;
}

.nca-page-label {
    color: #374151;
    font-size: 13px;
}

.nca-admin-wrap .nca-admin-cards {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-top: 18px;
}

.nca-admin-card-title {
    color: #4b5563;
    font-weight: 600;
}

.nca-admin-card-value {
    color: #111827;
    font-size: 30px;
    font-weight: 700;
    margin-top: 8px;
}

@media (max-width: 768px) {
    body.nca-chat-opened {
        overflow: hidden;
    }

    .nca-chat-shell {
        right: 12px !important;
        left: auto !important;
        bottom: 12px !important;
        top: auto !important;
        transform: none !important;
    }

    .nca-chat-panel {
        position: fixed;
        inset: 8px;
        width: auto;
        height: auto;
        max-width: none;
        max-height: none;
        border-radius: 18px;
    }

    .nca-chat-body {
        padding: 12px;
    }

    .nca-message {
        max-width: 92%;
        font-size: 14px;
    }

    .nca-chat-launcher {
        width: 56px;
        height: 56px;
        padding: 0;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .nca-launcher-icon {
        margin-right: 0;
        font-size: 22px;
    }

    .nca-launcher-text {
        display: none;
    }

    .nca-chat-form {
        padding-bottom: calc(11px + env(safe-area-inset-bottom));
    }

    .nca-chat-send {
        padding-left: 14px;
        padding-right: 14px;
    }

    .nca-newsletter-grid {
        grid-template-columns: 1fr;
    }

    .nca-newsletter-modal {
        padding: 12px;
    }

    .nca-newsletter-modal-card {
        width: 100%;
        border-radius: 18px;
    }

    .nca-dashboard-shell {
        grid-template-columns: 1fr;
    }

    .nca-dashboard-header {
        grid-template-columns: 1fr;
    }

    .nca-admin-wrap .nca-admin-cards {
        grid-template-columns: 1fr;
    }
}