html {
    font-size: 14px;
}

@media (min-width: 768px) {
    html {
        font-size: 16px;
    }
}

:root {
    --bs-font-sans-serif: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans", "Liberation Sans", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";
    --cnics-blue: #174a7c;
    --cnics-blue-dark: #0f3458;
    --cnics-border: #d9e2ec;
    --cnics-bg: #f4f7fb;
    --cnics-text: #1f2933;
    --cnics-muted: #52606d;
    --cnics-note: #eaf4fb;
}

html {
    min-height: 100%;
    position: relative;
}

body {
    background: var(--cnics-bg);
    color: var(--cnics-text);
    line-height: 1.6;
    margin-bottom: 60px;
}

.container {
    margin-bottom: 3rem;
    margin-top: 1.5rem;
    max-width: 1120px;
}

.cnics-site-header {
    margin-bottom: 1.5rem;
}

.cnics-language-bar {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 0.75rem;
}

.language-select {
    margin-top: 0;
}

.language-select .form-control {
    min-width: 9rem;
}

.cnics-hero-image {
    background: #fff;
    border: 1px solid var(--cnics-border);
    border-radius: 0.85rem;
    display: block;
    height: auto;
    width: 100%;
}

.cnics-site-header h1 {
    color: var(--cnics-blue-dark);
    font-size: clamp(1.55rem, 3vw, 2.15rem);
    font-weight: 700;
    line-height: 1.25;
    margin: 1.5rem auto 0;
    max-width: 900px;
    text-align: center;
}

h2 {
    color: var(--cnics-blue-dark);
    font-size: 1.45rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
}

a {
    color: var(--cnics-blue);
    font-weight: 600;
    overflow-wrap: anywhere;
}

a:hover {
    color: var(--cnics-blue-dark);
}

.card {
    border: 1px solid var(--cnics-border);
    border-radius: 0.85rem;
    box-shadow: 0 8px 24px rgba(15, 52, 88, 0.08);
}

.card-body {
    padding: 2rem;
}

.cnics-introduction,
.cnics-study-information {
    margin-bottom: 2rem;
}

.cnics-survey-note {
    background: var(--cnics-note);
    border-left: 5px solid var(--cnics-blue);
    border-radius: 0.35rem;
    margin: 2rem 0;
    padding: 1.25rem 1.5rem;
}

.cnics-expand-instruction {
    color: var(--cnics-muted);
    margin-bottom: 0.75rem;
}

.cnics-disclosures {
    border: 1px solid var(--cnics-border);
    border-radius: 0.65rem;
    overflow: hidden;
}

.cnics-disclosures details {
    background: #fff;
    border-bottom: 1px solid var(--cnics-border);
}

.cnics-disclosures details:last-child {
    border-bottom: 0;
}

.cnics-disclosures summary {
    align-items: center;
    color: var(--cnics-blue-dark);
    cursor: pointer;
    display: flex;
    font-size: 1.05rem;
    font-weight: 700;
    gap: 0.75rem;
    list-style: none;
    padding: 1rem 1.25rem;
}

.cnics-disclosures summary::-webkit-details-marker {
    display: none;
}

.cnics-disclosures summary::before {
    color: var(--cnics-blue);
    content: "+";
    flex: 0 0 1rem;
    font-size: 1.35rem;
    line-height: 1;
}

.cnics-disclosures details[open] summary {
    background: #f1f7fc;
}

.cnics-disclosures details[open] summary::before {
    content: "−";
}

.cnics-disclosures summary:hover {
    background: #f7faff;
}

.cnics-disclosures summary:focus-visible {
    box-shadow: inset 0 0 0 3px rgba(23, 74, 124, 0.3);
    outline: 0;
}

.cnics-disclosure-content {
    border-top: 1px solid var(--cnics-border);
    padding: 1.25rem 1.5rem 0.25rem 3rem;
}

.cnics-actions {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: minmax(0, 3fr) minmax(280px, 2fr);
    margin-top: 2rem;
}

.cnics-consent-panel,
.cnics-sign-in-panel {
    border: 1px solid var(--cnics-border);
    border-radius: 0.65rem;
    padding: 1.5rem;
}

.cnics-sign-in-panel {
    background: #f8fbff;
}

.cnics-consent-panel ul {
    padding-left: 1.35rem;
}

.cnics-consent-panel li {
    margin-bottom: 0.5rem;
}

.form-control {
    border-color: #9eafbf;
    border-radius: 0.5rem;
    max-width: 100%;
    min-height: 44px;
}

.form-control:focus {
    border-color: var(--cnics-blue);
    box-shadow: 0 0 0 0.2rem rgba(23, 74, 124, 0.18);
}

.btn {
    border-radius: 0.5rem;
    font-weight: 700;
    min-height: 44px;
    padding: 0.6rem 1.15rem;
}

.btn-primary {
    background-color: var(--cnics-blue);
    border-color: var(--cnics-blue);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--cnics-blue-dark);
    border-color: var(--cnics-blue-dark);
}

.btn-outline-secondary {
    border-color: #687785;
    color: #344452;
}

form[method="post"] {
    margin-top: 0.75rem;
}

.cnics-action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.cnics-submit-status {
    align-items: center;
    color: var(--cnics-muted);
    display: flex;
    font-weight: 600;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.cnics-submit-status[hidden] {
    display: none !important;
}

.cnics-submit-feedback-form .btn:disabled {
    cursor: wait;
    opacity: 0.85;
}

.cnics-submit-feedback-form .btn .spinner-border {
    margin-right: 0.5rem;
}

.btn:focus-visible,
.form-control:focus-visible {
    box-shadow: 0 0 0 0.1rem #fff, 0 0 0 0.3rem #258cfb;
}

div[style*="color:red"] {
    background: #fff5f5;
    border: 1px solid #f5b5b5;
    border-radius: 0.5rem;
    color: #9b1c1c !important;
    padding: 0.75rem 1rem;
}

@media (max-width: 767.98px) {
    .container {
        margin-top: 1rem;
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .card-body {
        padding: 1.25rem;
    }

    .cnics-site-header h1 {
        font-size: 1.45rem;
        margin-top: 1rem;
    }

    h2 {
        font-size: 1.2rem;
    }

    .cnics-survey-note,
    .cnics-consent-panel,
    .cnics-sign-in-panel {
        padding: 1.1rem;
    }

    .cnics-disclosures summary {
        padding: 0.9rem 1rem;
    }

    .cnics-disclosure-content {
        padding: 1rem 1rem 0.1rem;
    }

    .cnics-actions {
        grid-template-columns: 1fr;
    }

    .cnics-action-buttons {
        display: grid;
    }

    .cnics-action-buttons .btn,
    .cnics-sign-in-panel .btn {
        width: 100%;
    }
}