/* verificacro.it - tema chiaro/scuro */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* ── Light theme (default) ── */
:root {
    --bg:           #f0f5f5;
    --bg-card:      #ffffff;
    --border:       rgba(0,0,0,0.09);
    --heading:      #1a4040;
    --accent:       #2f4f4f;
    --btn-bg:       #2f4f4f;
    --btn-text:     #ffffff;
    --btn-hover:    #1e3535;
    --text:         #1a2e2e;
    --text-muted:   #5a7a7a;
    --cro-color:    #2f4f4f;
    --green-bg:     rgba(22, 163, 74, 0.08);
    --green-border: #16a34a;
    --red-bg:       rgba(220, 38, 38, 0.08);
    --red-border:   #dc2626;
    --radius:       12px;
    --shadow:       0 4px 24px rgba(0,0,0,0.08);
    --input-bg:     #ffffff;
    --input-text:   #1a2a2a;
}

/* ── Dark theme ── */
[data-theme="dark"] {
    --bg:           #2f4f4f;
    --bg-card:      #1e3535;
    --border:       rgba(255,255,255,0.1);
    --heading:      #ffd700;
    --accent:       #ffd700;
    --btn-bg:       #ffd700;
    --btn-text:     #1a2a2a;
    --btn-hover:    #ffe040;
    --text:         #e0e0e0;
    --text-muted:   #9ab0b0;
    --cro-color:    #ffd700;
    --green-bg:     rgba(34, 197, 94, 0.12);
    --green-border: #22c55e;
    --red-bg:       rgba(239, 68, 68, 0.12);
    --red-border:   #ef4444;
    --shadow:       0 4px 24px rgba(0,0,0,0.35);
    --input-bg:     #ffffff;
    --input-text:   #1a2a2a;
}

html { scroll-behavior: smooth; }

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    min-height: 100vh;
    transition: background-color 0.25s, color 0.25s;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Theme toggle button ── */
.theme-toggle {
    position: fixed;
    top: 16px;
    right: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 6px 14px;
    cursor: pointer;
    font-size: 18px;
    line-height: 1.4;
    z-index: 200;
    box-shadow: var(--shadow);
    transition: background 0.2s, box-shadow 0.2s;
}
.theme-toggle:hover { box-shadow: 0 4px 16px rgba(0,0,0,0.18); }

/* ── Layout ── */
.page {
    max-width: 720px;
    margin: 0 auto;
    padding: 40px 20px 60px;
}

/* ── Header ── */
.site-header {
    text-align: center;
    margin-bottom: 32px;
}

h1 {
    color: var(--heading);
    font-size: clamp(22px, 5vw, 32px);
    font-weight: 800;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.versione {
    color: var(--text-muted);
    font-size: 11px;
    letter-spacing: 1px;
    margin-bottom: 6px;
}

.sottotitolo {
    color: var(--accent);
    font-size: 14px;
    opacity: 0.8;
    margin-bottom: 16px;
}

.intro {
    color: var(--text-muted);
    font-size: 15px;
    max-width: 500px;
    margin: 0 auto;
}

/* ── Card principale ── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 32px 28px;
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    transition: background 0.25s, border-color 0.25s;
}

.card label {
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    text-align: center;
}

.card input[type="text"] {
    width: 100%;
    max-width: 420px;
    padding: 12px 16px;
    font-size: 18px;
    font-family: 'Courier New', Courier, monospace;
    letter-spacing: 2px;
    text-align: center;
    background: var(--input-bg);
    color: var(--input-text);
    border: 2px solid var(--border);
    border-radius: 8px;
    outline: none;
    transition: border-color 0.2s;
}

.card input[type="text"]:focus {
    border-color: var(--accent);
}

.card input[type="text"]::placeholder {
    color: #aaa;
    letter-spacing: 0;
    font-family: inherit;
    font-size: 14px;
}

.card button {
    padding: 12px 40px;
    background: var(--btn-bg);
    color: var(--btn-text);
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 1px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
}

.card button:hover  { background: var(--btn-hover); }
.card button:active { transform: scale(0.97); }

/* ── Risultati ── */
.risultato {
    align-items: flex-start;
    gap: 16px;
    border-radius: var(--radius);
    padding: 20px 24px;
    margin-bottom: 24px;
    border-left: 4px solid;
    transition: background 0.25s;
}

.risultato.ok {
    background: var(--green-bg);
    border-color: var(--green-border);
}

.risultato.ko {
    background: var(--red-bg);
    border-color: var(--red-border);
}

.risultato-icon {
    font-size: 28px;
    line-height: 1;
    flex-shrink: 0;
}

.ok .risultato-icon  { color: var(--green-border); }
.ko .risultato-icon  { color: var(--red-border); }

.risultato-body strong {
    display: block;
    font-size: 16px;
    margin-bottom: 6px;
}

.risultato-cro {
    font-family: 'Courier New', Courier, monospace;
    font-size: 20px;
    font-weight: 700;
    color: var(--cro-color);
    margin-bottom: 8px;
    letter-spacing: 2px;
}

.risultato-nota {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 6px;
}

/* ── Disclaimer accordion ── */
.disclaimer {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 32px;
    overflow: hidden;
    transition: background 0.25s;
}

.disclaimer summary {
    padding: 16px 20px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    user-select: none;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color 0.2s;
}

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

.disclaimer summary::before {
    content: '▸';
    font-size: 12px;
    transition: transform 0.2s;
}

.disclaimer[open] summary::before { transform: rotate(90deg); }
.disclaimer summary:hover { color: var(--text); }

.disclaimer-body {
    padding: 0 20px 20px;
    font-size: 14px;
    color: var(--text-muted);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.disclaimer-body strong { color: var(--text); }

/* ── Footer ── */
.site-footer {
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

/* ── Responsive ── */
@media (max-width: 480px) {
    .page  { padding: 24px 16px 48px; }
    .card  { padding: 24px 16px; }
    .card input[type="text"] { font-size: 16px; letter-spacing: 1px; }
    .risultato { padding: 16px; gap: 12px; }
    .risultato-icon { font-size: 22px; }
    .theme-toggle { top: 10px; right: 10px; padding: 5px 10px; font-size: 16px; }
}