:root {
    --cn-navy: #14232f;
    --cn-blue: #1e6da8;
    --cn-blue-dark: #164f7c;
    --cn-blue-light: #eaf3fa;
    --cn-gray: #667580;
    --cn-border: #dbe4ea;
    --cn-error: #c0392b;
    --cn-success: #1b7a43;
    --cn-radius: 10px;
    --cn-shadow: 0 20px 50px rgba(20, 35, 47, 0.25);
}

* { box-sizing: border-box; }

body.cn-demo-body {
    font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
    background: #f4f7f9;
    color: var(--cn-navy);
    margin: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cn-demo-wrapper {
    text-align: center;
    padding: 60px 20px;
}

.cn-demo-wrapper img.cn-demo-logo {
    height: 40px;
    margin-bottom: 28px;
}

.cn-demo-wrapper p {
    color: var(--cn-gray);
    margin-bottom: 28px;
}

/* --- Bottone apertura modal --- */
.cn-assistenza-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--cn-blue);
    color: #fff;
    border: none;
    padding: 14px 28px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--cn-radius);
    cursor: pointer;
    transition: background 0.2s ease, transform 0.15s ease;
    font-family: inherit;
}

.cn-assistenza-btn:hover { background: var(--cn-blue-dark); }
.cn-assistenza-btn:active { transform: scale(0.98); }
.cn-assistenza-btn:focus-visible {
    outline: 3px solid var(--cn-blue-dark);
    outline-offset: 2px;
}

.cn-assistenza-btn svg { width: 18px; height: 18px; flex-shrink: 0; }

/* --- Overlay + Modal --- */
.cn-modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 26, 35, 0.55);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 9999;
}

.cn-modal-overlay.cn-open {
    display: flex;
    animation: cnFadeIn 0.18s ease;
}

@keyframes cnFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.cn-modal {
    background: #fff;
    width: 100%;
    max-width: 480px;
    border-radius: var(--cn-radius);
    box-shadow: var(--cn-shadow);
    overflow: hidden;
    animation: cnSlideUp 0.22s ease;
}

@keyframes cnSlideUp {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

.cn-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 22px 26px;
    border-bottom: 1px solid var(--cn-border);
}

.cn-modal-header img {
    height: 26px;
}

.cn-modal-close {
    background: none;
    border: none;
    font-size: 22px;
    line-height: 1;
    color: var(--cn-gray);
    cursor: pointer;
    padding: 4px;
}

.cn-modal-close:hover { color: var(--cn-navy); }

.cn-modal-body { padding: 24px 26px 10px; }

.cn-modal-title {
    margin: 0 0 6px;
    font-size: 19px;
    font-weight: 700;
    color: var(--cn-navy);
}

.cn-modal-subtitle {
    margin: 0 0 20px;
    font-size: 13.5px;
    color: var(--cn-gray);
}

.cn-field { margin-bottom: 16px; }

.cn-field label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--cn-navy);
    margin-bottom: 6px;
}

.cn-field .cn-required { color: var(--cn-error); }

.cn-field input,
.cn-field textarea {
    width: 100%;
    padding: 11px 13px;
    border: 1px solid var(--cn-border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    color: var(--cn-navy);
    background: #fbfcfd;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.cn-field textarea {
    resize: vertical;
    min-height: 100px;
}

.cn-field input:focus,
.cn-field textarea:focus {
    outline: none;
    border-color: var(--cn-blue);
    box-shadow: 0 0 0 3px rgba(30, 109, 168, 0.15);
    background: #fff;
}

.cn-field input:invalid:not(:placeholder-shown),
.cn-field.cn-field-error input,
.cn-field.cn-field-error textarea {
    border-color: var(--cn-error);
}

.cn-field-msg {
    font-size: 12.5px;
    color: var(--cn-error);
    margin-top: 5px;
    display: none;
}

.cn-field.cn-field-error .cn-field-msg { display: block; }

/* honeypot, nascosto ma accessibile solo ai bot */
.cn-hp {
    position: absolute !important;
    left: -9999px !important;
    width: 1px; height: 1px; overflow: hidden;
}

.cn-modal-footer {
    padding: 4px 26px 26px;
}

.cn-submit-btn {
    width: 100%;
    background: var(--cn-blue);
    color: #fff;
    border: none;
    padding: 13px 20px;
    font-size: 15px;
    font-weight: 700;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s ease;
    font-family: inherit;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.cn-submit-btn:hover { background: var(--cn-blue-dark); }
.cn-submit-btn:disabled { background: #9fb8c8; cursor: not-allowed; }

.cn-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.4);
    border-top-color: #fff;
    border-radius: 50%;
    animation: cnSpin 0.7s linear infinite;
    display: none;
}

.cn-submit-btn.cn-loading .cn-spinner { display: inline-block; }
.cn-submit-btn.cn-loading .cn-submit-label { opacity: 0.7; }

@keyframes cnSpin { to { transform: rotate(360deg); } }

.cn-alert {
    margin: 0 26px 20px;
    padding: 12px 14px;
    border-radius: 8px;
    font-size: 13.5px;
    display: none;
}

.cn-alert.cn-show { display: block; }

.cn-alert.cn-success {
    background: #e9f7ee;
    color: var(--cn-success);
    border: 1px solid #bfe6cd;
}

.cn-alert.cn-error {
    background: #fbeceb;
    color: var(--cn-error);
    border: 1px solid #f2c3bf;
}

@media (max-width: 480px) {
    .cn-modal-body, .cn-modal-header { padding-left: 18px; padding-right: 18px; }
    .cn-modal-footer { padding-left: 18px; padding-right: 18px; }
}