/* =========================================================================
   style.css  -  LOTTO SCIENTIFICO 3.0 (conversione web)
   Estetica ispirata alla grafica EGA/DOS del programma QuickBasic originale
   (SCREEN 12, palette a 16 colori, riquadri a doppia linea) ma resa moderna,
   pulita e RESPONSIVE (mobile-first).
   ========================================================================= */

:root {
    /* Palette EGA usata dal programma originale */
    --ega-0:  #000000; --ega-1:  #0000AA; --ega-2:  #00AA00; --ega-3:  #00AAAA;
    --ega-4:  #AA0000; --ega-5:  #AA00AA; --ega-6:  #AA5500; --ega-7:  #AAAAAA;
    --ega-8:  #555555; --ega-9:  #5555FF; --ega-10: #55FF55; --ega-11: #55FFFF;
    --ega-12: #FF5555; --ega-13: #FF55FF; --ega-14: #FFFF55; --ega-15: #FFFFFF;

    --sfondo:      #000033;   /* blu DOS scuro */
    --pannello:    #0000AA;   /* blu pannello */
    --pannello-2:  #00006e;
    --bordo:       #FFFF55;   /* giallo */
    --testo:       #FFFFFF;
    --testo-soft:  #AAAAAA;
    --accent:      #55FFFF;   /* ciano chiaro */
    --giallo:      #FFFF55;
    --verde:       #55FF55;
    --rosso:       #FF5555;
    --font-mono:   "Consolas", "Lucida Console", "Courier New", monospace;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
}

body {
    background: var(--sfondo);
    color: var(--testo);
    font-family: var(--font-mono);
    font-size: 16px;
    line-height: 1.5;
    -webkit-text-size-adjust: 100%;
}

/* Sfondo a scacchiera tenue tipo griglia DOS */
body.schermo-dos {
    background-image:
        linear-gradient(rgba(85, 255, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(85, 255, 255, 0.04) 1px, transparent 1px);
    background-size: 24px 24px;
}

.finestra {
    max-width: 1100px;
    margin: 0 auto;
    padding: 10px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ---------------- HEADER ---------------- */
.ls-header {
    border: 3px double var(--bordo);
    background: linear-gradient(180deg, var(--pannello) 0%, var(--pannello-2) 100%);
    padding: 12px 16px;
    text-align: center;
    border-radius: 6px;
    margin-bottom: 10px;
}
.ls-header h1 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--giallo);
    letter-spacing: 1px;
    text-shadow: 2px 2px 0 #000;
}
.ls-header .sottotitolo {
    margin: 4px 0 0;
    color: var(--accent);
    font-size: 0.85rem;
}
.ls-header .barra-info {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 8px;
    font-size: 0.78rem;
    color: var(--testo-soft);
}

/* ---------------- MENU DI NAVIGAZIONE ---------------- */
.ls-navbar {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 10px;
}
.ls-navbar a {
    flex: 1 1 auto;
    text-align: center;
    background: var(--pannello);
    color: var(--testo);
    text-decoration: none;
    padding: 8px 10px;
    border: 2px solid var(--accent);
    border-radius: 4px;
    font-size: 0.8rem;
}
.ls-navbar a:hover, .ls-navbar a.attivo {
    background: var(--giallo);
    color: #000;
    font-weight: bold;
}

/* ---------------- CONTENUTO ---------------- */
.ls-contenuto {
    flex: 1;
    background: rgba(0, 0, 60, 0.55);
    border: 2px solid var(--pannello);
    border-radius: 6px;
    padding: 14px 16px;
}
.ls-contenuto h2 {
    color: var(--giallo);
    border-bottom: 1px dashed var(--accent);
    padding-bottom: 4px;
    font-size: 1.2rem;
}
.ls-contenuto h3 { color: var(--accent); font-size: 1.05rem; }
a { color: var(--accent); }

/* ---------------- MENU PRINCIPALE A PULSANTI ---------------- */
.menu-griglia {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 10px;
    margin-top: 12px;
}
.menu-voce {
    display: flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(180deg, var(--pannello) 0%, var(--pannello-2) 100%);
    border: 2px solid var(--accent);
    border-radius: 6px;
    padding: 12px 14px;
    color: var(--testo);
    text-decoration: none;
    transition: transform .05s ease, background .1s ease;
    min-height: 60px;
}
.menu-voce:hover { background: var(--giallo); color: #000; transform: translateY(-2px); }
.menu-voce:hover .lettera { background: #000; color: var(--giallo); }
.menu-voce .lettera {
    flex: 0 0 auto;
    width: 34px; height: 34px;
    display: grid; place-items: center;
    background: var(--giallo);
    color: #000;
    font-weight: bold;
    border-radius: 4px;
    font-size: 1.1rem;
}
.menu-voce .testo-voce { font-size: 0.92rem; line-height: 1.2; }

/* ---------------- TABELLE ---------------- */
.tab-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 10px 0; }
table.tab {
    border-collapse: collapse;
    width: 100%;
    font-size: 0.85rem;
    background: rgba(0,0,40,0.5);
}
table.tab th, table.tab td {
    border: 1px solid #2a2a7a;
    padding: 5px 8px;
    text-align: center;
    white-space: nowrap;
}
table.tab th {
    background: var(--pannello);
    color: var(--giallo);
    position: sticky; top: 0;
}
table.tab tr:nth-child(even) td { background: rgba(0,0,80,0.35); }
table.tab td.sx { text-align: left; }

/* numeri estratti in stile "pallina" */
.num {
    display: inline-grid; place-items: center;
    min-width: 30px; height: 30px;
    margin: 2px;
    border-radius: 50%;
    background: #ffffff; color: #000;
    font-weight: bold;
    border: 2px solid var(--accent);
}
.num.evid { background: var(--giallo); color: #000; border-color: var(--rosso); box-shadow: 0 0 6px var(--giallo); }

/* colori statistici come nell'originale */
.c-giallo { color: var(--giallo); }
.c-verde  { color: var(--verde); }
.c-rosso  { color: var(--rosso); }
.c-ciano  { color: var(--accent); }

/* ---------------- FORM ---------------- */
.form-box {
    background: rgba(0,0,40,0.6);
    border: 2px solid var(--pannello);
    border-radius: 6px;
    padding: 14px;
    margin: 12px 0;
}
label { display: block; margin: 8px 0 4px; color: var(--accent); font-size: 0.9rem; }
select, input[type=text], input[type=password], input[type=number] {
    width: 100%;
    max-width: 360px;
    padding: 8px;
    background: #000022;
    color: var(--testo);
    border: 2px solid var(--accent);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 1rem;
}
fieldset { border: 1px solid var(--accent); border-radius: 6px; margin: 10px 0; }
legend { color: var(--giallo); padding: 0 6px; }

.checkbox-griglia {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 4px 12px;
}
.checkbox-griglia label {
    display: flex; align-items: center; gap: 8px;
    color: var(--testo); cursor: pointer; margin: 2px 0;
}
.checkbox-griglia input { width: auto; max-width: none; }

/* ---------------- PULSANTI ---------------- */
.btn, button.btn {
    display: inline-block;
    background: var(--giallo);
    color: #000;
    border: 2px solid #000;
    border-radius: 4px;
    padding: 9px 16px;
    font-family: var(--font-mono);
    font-weight: bold;
    font-size: 0.95rem;
    text-decoration: none;
    cursor: pointer;
    margin: 4px 4px 4px 0;
}
.btn:hover { background: #fff; }
.btn-second { background: var(--accent); }
.btn-rosso  { background: var(--rosso); color: #fff; }
.azioni { margin: 14px 0; }

/* ---------------- MESSAGGI ---------------- */
.msg { padding: 10px 14px; border-radius: 6px; margin: 10px 0; border: 2px solid; }
.msg-ok     { border-color: var(--verde); background: rgba(0,80,0,0.3); }
.msg-errore { border-color: var(--rosso); background: rgba(80,0,0,0.3); }
.msg-info   { border-color: var(--accent); background: rgba(0,0,80,0.4); }
.nota { color: var(--testo-soft); font-size: 0.8rem; font-style: italic; margin-top: 16px; }
.log { font-size: 0.82rem; color: var(--verde); }
.log li { margin: 2px 0; }

/* testo pre-formattato (per guide e testi originali) */
pre.dos {
    background: #000022;
    border: 2px solid var(--pannello);
    border-radius: 6px;
    padding: 12px;
    overflow-x: auto;
    color: var(--accent);
    font-size: 0.8rem;
    line-height: 1.35;
    white-space: pre-wrap;
    word-break: break-word;
}

/* ---------------- FOOTER ---------------- */
.ls-footer {
    margin-top: 10px;
    text-align: center;
    color: var(--testo-soft);
    font-size: 0.78rem;
    border-top: 1px solid var(--pannello);
    padding-top: 8px;
}

/* avviso aleatorietà sempre visibile */
.disclaimer {
    background: rgba(80, 60, 0, 0.4);
    border: 1px dashed var(--giallo);
    color: var(--giallo);
    font-size: 0.78rem;
    padding: 6px 10px;
    border-radius: 4px;
    margin: 10px 0;
}

/* ---------------- SPLASH (schermata iniziale) ---------------- */
.splash {
    text-align: center;
    padding: 30px 16px;
}
.splash .logo-grande {
    font-size: clamp(1.6rem, 6vw, 3rem);
    color: var(--giallo);
    text-shadow: 3px 3px 0 #000, -1px -1px 0 var(--accent);
    letter-spacing: 2px;
    margin: 10px 0;
}
.splash .casa {
    font-size: 0.9rem; color: var(--accent); margin: 14px 0;
}
.splash .spot {
    border: 2px solid var(--accent);
    background: rgba(0,0,60,0.6);
    border-radius: 6px;
    padding: 12px;
    margin: 16px auto;
    max-width: 760px;
    color: var(--testo);
    font-size: 0.85rem;
}

/* ---------------- RESPONSIVE ---------------- */
@media (max-width: 600px) {
    body { font-size: 15px; }
    .ls-header h1 { font-size: 1.15rem; }
    .menu-griglia { grid-template-columns: 1fr; }
    table.tab { font-size: 0.8rem; }
    .ls-navbar a { flex-basis: 46%; }
}