/* =========================================
   1. DESIGN TOKENS (VARIABILI)
   ========================================= */
:root {
  /* --- Palette Oro Accessibile --- */
  --c-gold: #D4AF37;           /* Accenti/Bordi */
  --c-gold-text: #9A7B0F;      /* Testo su chiaro (Contrasto OK) */
  --c-gold-hover: #B8860B;     /* Hover State */
  --c-gold-bg: #C5A028;        /* Sfondo scuro (Navbar/Footer) */
  --c-gold-overlay: rgba(0, 0, 0, 0.2);

  /* --- Scala Grigi & Base --- */
  --c-white: #FFFFFF;
  --c-off-white: #FDFBF7;
  --c-text-main: #1A1A1A;
  --c-text-muted: #5C5C5C;
  
  /* --- GitHub/Markdown Specific Tokens --- */
  --gh-fg-default: #1A1A1A;
  --gh-fg-muted: #595959;
  --gh-accent: #705608;
  --gh-border: #767676;
  --gh-border-subtle: #a6a6a6;
  --gh-canvas: #ffffff;
  --gh-canvas-subtle: #f2f2f2;
  --gh-code-bg: rgba(0, 0, 0, 0.08);
  --gh-code-fg: #5C4206;
  --gh-link-blue: #0969da;
  --gh-hover-bg: #f6f8fa;
  --gh-line-color: #d0d7de;

  /* --- Metrics & Effects --- */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
  --shadow-hover: 0 8px 16px rgba(212, 175, 55, 0.2);
  --ease-std: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* =========================================
   2. RESET & BASE
   ========================================= */
*, *::before, *::after {
  box-sizing: border-box;
}

@font-face {
  font-display: block;
  font-family: bootstrap-icons;
  src: url("https://cdn.jsdelivr.net/npm/bootstrap-icons@1.13.1/font/fonts/bootstrap-icons.woff2") format("woff2"), 
       url("https://cdn.jsdelivr.net/npm/bootstrap-icons@1.13.1/font/fonts/bootstrap-icons.woff") format("woff");
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  color: var(--c-text-main);
  background-color: var(--c-off-white);
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  margin: 0;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Focus Accessibility */
:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: 2px;
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* =========================================
   3. TYPOGRAPHY
   ========================================= */
h1, h2, h3, h4, h5, h6 {
  color: var(--c-gold-text);
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.2;
}

h1.display-1 {
  font-size: 2.5rem;
  letter-spacing: -0.02em;
}

p { margin-bottom: 1rem; }

a {
  color: var(--c-gold-text);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s ease;
}

a:hover { color: var(--c-gold-hover); }

/* =========================================
   4. LAYOUT STRUCTURE & FOOTER CONTRAST
   ========================================= */
.site-main { 
  flex: 1; 
}

.site-header {
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.site-footer {
  background-color: var(--c-gold-bg);
  border-top: 3px solid var(--c-gold);
  margin-top: auto;
  color: #1A1A1A !important;
}

/* --- Testi generici e opachi del Footer --- */
footer.site-footer .text-white,
footer.site-footer span.small,
footer.site-footer .opacity-75 {
  color: #1A1A1A !important;
  opacity: 1 !important;
}

/* --- Link di Default del Footer --- */
.site-footer a,
footer.site-footer a.text-white-50,
footer.site-footer .text-white-50 {
  color: #1A1A1A !important;
  opacity: 1 !important;
  text-decoration: underline !important;
  text-underline-offset: 3px;
  font-weight: 500;
  transition: var(--ease-std);
}

/* --- Stato Hover sui Link --- */
.site-footer a:hover,
footer.site-footer a.text-white-50:hover,
footer.site-footer a.hover-white:hover {
  color: #000000 !important;
  text-decoration: underline !important;
}

/* --- Link Attivo (Pagina Corrente) --- */
footer.site-footer a.active-link {
  color: #000000 !important;
  background-color: transparent !important;
  border-bottom: none !important;
  padding-bottom: 0 !important;
  text-decoration: underline !important;
  text-decoration-thickness: 2px !important;
  text-underline-offset: 4px;
  font-weight: 700 !important;
}

/* =========================================
   5. NAVIGATION COMPONENT
   ========================================= */
.navbar.bg-opaque-gold, 
.site-header .navbar {
  background-color: var(--c-gold-bg) !important;
  background-image: linear-gradient(180deg, rgba(255,255,255,0.1) 0%, rgba(0,0,0,0.05) 100%);
}

.navbar-brand {
  font-size: 1.1rem !important;
  padding: 0;
  color: var(--c-white);
}

.navbar-brand img {
  height: 35px !important;
  width: auto;
}

.navbar-nav .nav-link {
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.95rem;
  padding: 0.4rem 1rem !important;
  border-radius: var(--radius-sm);
  transition: var(--ease-std);
}

.navbar-nav .nav-link:hover {
  color: #fff;
  background-color: rgba(255, 255, 255, 0.1);
}

.navbar-nav .nav-link.active.bg-gold-active {
  background-color: var(--c-gold-overlay) !important;
  color: var(--c-white) !important;
  font-weight: 600;
  box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

.navbar-toggler {
  padding: 0.25rem 0.5rem;
  border-color: rgba(255,255,255,0.3);
}
.navbar-toggler-icon { filter: brightness(10); }

.dropdown-menu {
  background-color: var(--c-white);
  border: 1px solid var(--c-gold);
}

.dropdown-item { color: var(--c-text-main); }

.dropdown-item:hover, 
.dropdown-item:focus {
  background-color: rgba(212, 175, 55, 0.1);
  color: var(--c-gold-text);
}

.dropdown-item.active.bg-gold-active {
  background-color: var(--c-gold-bg) !important;
  color: white !important;
}

.nav-pills .nav-link.active { color: #ffffff !important; }
.nav-pills .nav-link:not(.active) { color: #212529 !important; }

/* =========================================
   6. UI COMPONENTS
   ========================================= */
.card {
  border-radius: var(--radius-md);
  background-color: var(--c-white);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(212, 175, 55, 0.2);
  transition: var(--ease-std);
}

.card.hover-gold:hover {
  border-color: var(--c-gold) !important;
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
  background-color: #FFFEF8;
}

.card-text { white-space: pre-line; }

.btn {
  border-radius: var(--radius-sm);
  font-weight: 600;
  padding: 0.5rem 1.25rem;
  transition: var(--ease-std);
}

.btn-outline-gold {
  color: var(--c-gold-text);
  border-color: var(--c-gold);
  background-color: transparent;
}

.btn-outline-gold:hover {
  background-color: var(--c-gold);
  color: #3E2C00;
  transform: translateY(-1px);
}

.btn-gold-solid {
  background-color: var(--c-gold-bg) !important;
  border: none;
  color: white !important;
}

.btn-gold-solid:hover {
  background-color: var(--c-gold-hover) !important;
  box-shadow: 0 4px 8px rgba(0,0,0,0.1);
  transform: translateY(-1px);
}

.badge {
  font-weight: 600;
  padding: 0.4em 0.8em;
  border-radius: var(--radius-sm);
}

.badge-gold {
  background-color: var(--c-gold) !important;
  color: #3E2C00 !important;
  box-shadow: var(--shadow-sm);
}

.badge-light-custom {
  background-color: #f8f9fa !important;
  color: var(--c-text-main) !important;
  border: 1px solid #dee2e6 !important;
}

.form-control, 
.form-select {
  border: 1px solid #ced4da;
  border-radius: var(--radius-sm);
  padding: 0.6rem 1rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus, 
.form-select:focus {
  border-color: var(--c-gold);
  box-shadow: 0 0 0 0.25rem rgba(212, 175, 55, 0.25);
  outline: none;
}

.form-label {
  font-weight: 600;
  color: var(--c-text-main);
  margin-bottom: 0.5rem;
}

.form-check-input:checked {
  background-color: var(--c-gold-bg);
  border-color: var(--c-gold-bg);
}
.form-check-input:focus {
  border-color: var(--c-gold);
  box-shadow: 0 0 0 0.25rem rgba(212, 175, 55, 0.25);
}

.was-validated .form-control:valid, .form-control.is-valid {
  border-color: #28a745;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%2328a745' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right calc(0.375em + 0.1875rem) center;
  background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

.was-validated .form-control:invalid, .form-control.is-invalid {
  border-color: #dc3545;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23dc3545'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23dc3545' stroke='none'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right calc(0.375em + 0.1875rem) center;
  background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

.invalid-feedback { color: #dc3545; font-size: 0.875rem; margin-top: 0.25rem; }
.valid-feedback { color: #28a745; font-size: 0.875rem; margin-top: 0.25rem; }

/* =========================================
   7. GITHUB STYLE & MARKDOWN ELEMENTS
   ========================================= */
.markdown-body {
    background-color: transparent !important;
}

/* --- Table of Contents --- */
.markdown-body ul.table-of-contents {
    list-style: none;
    padding-left: 0;
    margin-top: 1.5rem;
    margin-bottom: 1.5rem;
    border-left: 2px solid var(--c-gold);
    padding-left: 1rem;
}

.markdown-body ul.table-of-contents ul {
    list-style: none;
    padding-left: 1rem;
    margin-top: 0.25rem;
}

.markdown-body ul.table-of-contents ul a {
    font-size: 0.9em;
    color: var(--c-text-muted);
}

.markdown-body ul.table-of-contents a {
    text-decoration: none;
    color:black;
}

.markdown-body ul.table-of-contents a:hover {
    text-decoration: underline;
}

/* --- Titoli H3 --- */
.markdown-body h3 {
    color: #7e5d0b;
    font-size: 1.3rem;
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

/* --- Codice Inline (<code>) --- */
.markdown-body code:not(pre code) {
    background-color: var(--gh-code-bg, rgba(0, 0, 0, 0.06));
    color: var(--gh-code-fg, #5C4206);
    padding: 0.2em 0.4em;
    border-radius: var(--radius-sm, 4px);
    font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 85%;
}

/* --- Blocchi di Codice (<pre> e <pre><code>) --- */
.markdown-body pre {
    background-color: var(--gh-canvas-subtle, #f6f8fa);
    border: 1px solid var(--gh-border-subtle, #d0d7de);
    border-radius: var(--radius-md, 6px);
    padding: 1rem;
    overflow-x: auto;
    margin-top: 1rem;
    margin-bottom: 1rem;
    line-height: 1.45;
}

.markdown-body pre code {
    background-color: transparent !important;
    padding: 0 !important;
    border-radius: 0 !important;
    color: var(--c-text-main);
    font-family: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 85%;
    white-space: pre;
    word-break: normal;
}

/* =========================================
   8. MEDIA PRINT (E-BOOK STAMPA / PDF)
   ========================================= */
@media print {
    /* 1. Impostazione Pagina A4 e Margini */
    @page {
        size: A4 portrait;
        margin: 20mm 15mm 20mm 15mm;

        @bottom-center {
            content: counter(page);
            font-family: "Georgia", serif;
            font-size: 9pt;
            color: var(--c-gold-text);
        }
    }

    @page :first {
        @bottom-center {
            content: "";
        }
    }

    /* 2. Nascondi elementi d'interfaccia e COOKIEBAR */
    nav,
    .no-print,
    #scrollTopBtn,
    footer,
    .breadcrumb,
    .heading-permalink,
    #cb-container,
    .cb-container {
        display: none !important;
    }

    /* 3. Reset Layout e Colori (Sfondo Bianco) */
    html, body, .container, .container-fluid, article, .print-container {
        width: 100% !important;
        max-width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
        background: #ffffff !important;
        color: #1a1a1a !important;
    }

    body {
        font-family: "Georgia", "Times New Roman", serif !important;
        font-size: 11pt !important;
        line-height: 1.5 !important;
    }

    /* 4. Copertina E-Book (Accenti Gold su Bianco) */
    .print-cover {
        page-break-after: always;
        padding-top: 50mm;
        text-align: center;
        border-bottom: none !important;
    }

    .print-category {
        font-size: 11pt;
        text-transform: uppercase;
        color: var(--c-gold-text) !important;
        display: block;
        margin-bottom: 15px;
        font-weight: 600;
    }

    .print-title {
        font-size: 26pt !important;
        font-weight: bold !important;
        color: var(--c-gold-text) !important;
        margin-bottom: 15px !important;
    }

    .print-subtitle {
        font-size: 12pt !important;
        font-style: italic;
        color: #444444 !important;
    }

    .print-meta {
        margin-top: 40mm;
        border-top: 1px solid var(--c-gold);
        padding-top: 10px;
    }

    .print-author {
        display: block;
        font-size: 12pt;
        font-weight: bold;
        color: var(--c-gold-text) !important;
    }

    .print-date {
        display: block;
        font-size: 9pt;
        color: #666666;
    }

    /* 5. Contenuto Principale */
    .print-content {
        font-size: 11pt !important;
        text-align: justify;
    }

    .print-content > h1:first-child,
    .print-content > h2:first-child {
        page-break-before: avoid !important;
        margin-top: 0 !important;
        padding-top: 0 !important;
    }

    .print-content h1,
    .print-content h2 {
        page-break-before: always;
        page-break-after: avoid;
        font-size: 16pt !important;
        color: var(--c-gold-text) !important;
        margin-top: 10mm !important;
        padding-bottom: 5px;
        border-bottom: 1px solid var(--c-gold);
    }

    .print-content h3,
    .print-content h4 {
        color: var(--c-gold-text) !important;
        page-break-after: avoid;
        margin-top: 12pt !important;
        margin-bottom: 6pt !important;
    }

    .print-content p {
        margin-bottom: 10pt;
        orphans: 3;
        widows: 3;
    }

    /* Regole Stampa Codice */
    .markdown-body pre {
        background-color: #f8f9fa !important;
        border: 1px solid #ccc !important;
        white-space: pre-wrap !important;
        word-break: break-all;
        page-break-inside: avoid;
    }

    .markdown-body code {
        font-family: "Courier New", Courier, monospace !important;
    }

    /* 6. Firma Finale "- Luigi Amorfini" */
    .print-content::after {
        content: "- Luigi Amorfini";
        display: block;
        margin-top: 30px;
        font-size: 11pt;
        font-style: italic;
        font-weight: bold;
        text-align: right;
        color: var(--c-gold-text) !important;
        page-break-before: avoid;
    }
}

/* =========================================
   9. UTILITIES
   ========================================= */
.text-gold { color: var(--c-gold-text) !important; }
.bg-gold-active { background-color: var(--c-gold-overlay) !important; }
.border-gold { border-color: var(--c-gold) !important; }

.hr-gold {
  border: none;
  height: 3px;
  background-color: var(--c-gold);
  opacity: 0.5;
  margin: 1rem 0;
}

.img-rounded-circle {
  border: 3px solid var(--c-gold);
  box-shadow: var(--shadow-sm);
  border-radius: 50%;
}

.bg-gradient-gold {
  background-color: var(--c-gold-bg) !important;
  background-image: linear-gradient(180deg, rgba(255,255,255,0.1) 0%, rgba(0,0,0,0.05) 100%);
}

/* =========================================
   10. COOKIEBAR
   ========================================= */
#cb-container {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #1a1a1a;
    color: #fff;
    padding: 15px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: system-ui, -apple-system, sans-serif;
    font-size: 14px;
    z-index: 99999;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.3);
    animation: cb-slideUp 0.3s ease-out;
}

#cb-container p { 
    margin: 0; 
    padding-right: 20px; 
    line-height: 1.4; 
}

.cb-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap;
}

.cb-btn {
    padding: 8px 24px;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
    transition: opacity 0.2s;
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.cb-btn:hover { 
    opacity: 0.9; 
}

.cb-btn-primary {
    background: var(--c-gold);
    color: #1a1a1a;
}

.cb-btn-secondary {
    background: transparent;
    color: #fff;
    border: 1px solid rgba(255,255,255,0.3);
}

.cb-btn-secondary:hover {
    border-color: #fff;
    opacity: 1;
}

@keyframes cb-slideUp {
    from { transform: translateY(100%); }
    to { transform: translateY(0); }
}

@media (max-width: 600px) {
    #cb-container {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    #cb-container p { 
        padding-right: 0; 
    }
    
    .cb-actions {
        width: 100%;
        flex-direction: column-reverse;
    }
    
    .cb-btn { 
        width: 100%; 
    }
}