/* ==========================================================================
   Andrea Ghirardini - Landing Page Stylesheet
   Cybersecurity, System Integration & Datacenter Architecture
   Theme: Modern Cyber Dark
   ========================================================================== */

:root {
    --bg-base: #080c14;
    --bg-darker: #04070c;
    --bg-card: #0d1322;
    --bg-card-hover: #121a2e;
    --bg-card-glass: rgba(13, 19, 34, 0.85);
    
    --border-color: #1e293b;
    --border-focus: #00f2fe;
    
    --text-primary: #f8fafc;
    --text-slate: #cbd5e1;
    --text-muted: #94a3b8;
    --text-dim: #64748b;
    
    --cyan: #00f2fe;
    --cyan-glow: rgba(0, 242, 254, 0.25);
    --blue: #38bdf8;
    --emerald: #10b981;
    --emerald-glow: rgba(16, 185, 129, 0.25);
    --purple: #a855f7;
    --purple-glow: rgba(168, 85, 247, 0.25);
    --danger: #ef4444;

    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    --font-mono: 'Fira Code', 'JetBrains Mono', Consolas, Monaco, monospace;
    
    --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.7);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--bg-base);
    color: var(--text-slate);
    font-family: var(--font-sans);
    line-height: 1.65;
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
}

/* ================= BACKGROUND GLOW & GRID ================= */
.cyber-background-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
}

.cyber-ambient-glow {
    position: fixed;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 242, 254, 0.08) 0%, rgba(16, 185, 129, 0.04) 40%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    filter: blur(80px);
}

/* ================= LAYOUT & CONTAINER ================= */
.container {
    width: 100%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 24px;
    padding-right: 24px;
    position: relative;
    z-index: 1;
}

.section {
    padding: 100px 0;
    position: relative;
    z-index: 1;
}

.section-darker {
    background-color: var(--bg-darker);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.section-header {
    text-align: center;
    max-width: 750px;
    margin: 0 auto 60px auto;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--cyan);
    margin-bottom: 12px;
    padding: 4px 12px;
    border-radius: 4px;
    background: rgba(0, 242, 254, 0.08);
    border: 1px solid rgba(0, 242, 254, 0.2);
}

.section-title {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.25;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.section-lead {
    font-size: 1.1rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ================= NAVBAR ================= */
.navbar-wrapper {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(8, 12, 20, 0.85);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(30, 41, 59, 0.7);
    z-index: 1000;
    transition: var(--transition);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 74px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-primary);
}

.brand-badge {
    font-family: var(--font-mono);
    font-weight: 700;
    color: var(--cyan);
    background: rgba(0, 242, 254, 0.1);
    padding: 3px 8px;
    border-radius: 4px;
    border: 1px solid rgba(0, 242, 254, 0.3);
    font-size: 0.9rem;
}

.brand-name {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.brand-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--emerald);
    background: rgba(16, 185, 129, 0.1);
    padding: 2px 6px;
    border-radius: 3px;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link:hover, .nav-link.active {
    color: var(--cyan);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    margin: 5px 0;
    background: var(--text-primary);
    transition: var(--transition);
}

/* ================= HERO SECTION ================= */
.hero-section {
    padding: 160px 0 100px 0;
    position: relative;
    z-index: 1;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.25fr 1fr;
    gap: 48px;
    align-items: center;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 30px;
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--emerald);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 24px;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--emerald);
    box-shadow: 0 0 10px var(--emerald);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.85); }
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--text-primary);
    line-height: 1.1;
    letter-spacing: -1.5px;
    margin-bottom: 16px;
}

.hero-subtitle {
    font-size: 1.35rem;
    font-weight: 600;
    margin-bottom: 24px;
    line-height: 1.4;
}

.text-gradient {
    background: linear-gradient(135deg, #f8fafc 0%, #00f2fe 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-cyan { color: var(--cyan); }
.text-emerald { color: var(--emerald); }
.text-purple { color: var(--purple); }

.hero-description {
    font-size: 1.1rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 600px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 36px;
}

/* Barra contatti rapidi in Hero */
.hero-fast-contact {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.fast-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.88rem;
    background: rgba(15, 23, 42, 0.6);
    padding: 6px 12px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
}

.fast-label {
    color: var(--text-dim);
    font-weight: 600;
    font-family: var(--font-mono);
}

.fast-val {
    color: var(--text-slate);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.fast-val:hover {
    color: var(--cyan);
}

.link-institute {
    color: var(--emerald);
}

.link-linkedin {
    color: var(--blue);
}

/* Pulsante copia mini */
.btn-copy, .btn-copy-card {
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    padding: 3px;
    border-radius: 4px;
    transition: var(--transition);
}

.btn-copy:hover, .btn-copy-card:hover {
    color: var(--cyan);
    background: rgba(0, 242, 254, 0.1);
}

/* Terminal Card */
.hero-terminal-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card), 0 0 20px rgba(0, 242, 254, 0.05);
    overflow: hidden;
    position: relative;
}

.terminal-header {
    background: #090e1a;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid var(--border-color);
}

.terminal-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}
.btn-close { background-color: #ef4444; }
.btn-min { background-color: #eab308; }
.btn-max { background-color: #10b981; }

.terminal-title {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-left: 8px;
}

.terminal-body {
    padding: 24px;
    font-size: 0.88rem;
    line-height: 1.6;
    color: var(--text-slate);
}

.term-line {
    margin-bottom: 12px;
}

.term-prompt {
    color: var(--emerald);
    font-weight: bold;
}

.term-cmd {
    color: var(--cyan);
}

.term-code {
    background: transparent;
    font-family: var(--font-mono);
    color: var(--text-slate);
    white-space: pre;
    line-height: 1.5;
    font-size: 0.82rem;
}

.tok-key { color: var(--cyan); }
.tok-str { color: #fde047; }
.tok-val { color: var(--emerald); font-weight: bold; }

.term-cursor {
    display: inline-block;
    color: var(--cyan);
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    50% { opacity: 0; }
}

/* ================= STATISTICHE ROW ================= */
.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 60px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 28px 24px;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.stat-card:hover {
    border-color: rgba(0, 242, 254, 0.4);
    transform: translateY(-3px);
}

.stat-num {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--cyan);
    line-height: 1;
    font-family: var(--font-mono);
    margin-bottom: 8px;
}

.stat-label {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.stat-sub {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ================= SEZIONE CHI SONO & PILLARS ================= */
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
}

.about-bio-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 40px;
    border-radius: var(--radius-lg);
}

.bio-paragraph {
    margin-bottom: 20px;
    font-size: 1.05rem;
    line-height: 1.8;
}

.bio-paragraph strong {
    color: var(--text-primary);
}

.cert-badges-wrapper {
    margin-top: 30px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.cert-title {
    display: block;
    font-size: 0.88rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
    margin-bottom: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cert-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.badge-cert {
    font-size: 0.82rem;
    font-family: var(--font-mono);
    background: rgba(15, 23, 42, 0.9);
    color: var(--cyan);
    padding: 6px 12px;
    border-radius: 4px;
    border: 1px solid rgba(0, 242, 254, 0.25);
}

.about-pillars {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.pillar-card {
    display: flex;
    gap: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 24px;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.pillar-card:hover {
    border-color: rgba(0, 242, 254, 0.3);
    background: var(--bg-card-hover);
}

.pillar-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: rgba(0, 242, 254, 0.1);
    color: var(--cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.pillar-icon svg {
    width: 24px;
    height: 24px;
}

.pillar-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.pillar-desc {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ================= SERVIZI GRID ================= */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px 30px;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    transform: translateY(-5px);
}

.border-glow-cyan:hover {
    border-color: var(--cyan);
    box-shadow: 0 10px 30px -10px var(--cyan-glow);
}

.border-glow-emerald:hover {
    border-color: var(--emerald);
    box-shadow: 0 10px 30px -10px var(--emerald-glow);
}

.border-glow-purple:hover {
    border-color: var(--purple);
    box-shadow: 0 10px 30px -10px var(--purple-glow);
}

.service-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.service-icon svg {
    width: 28px;
    height: 28px;
}

.icon-cyan {
    background: rgba(0, 242, 254, 0.1);
    color: var(--cyan);
    border: 1px solid rgba(0, 242, 254, 0.25);
}

.icon-emerald {
    background: rgba(16, 185, 129, 0.1);
    color: var(--emerald);
    border: 1px solid rgba(16, 185, 129, 0.25);
}

.icon-purple {
    background: rgba(168, 85, 247, 0.1);
    color: var(--purple);
    border: 1px solid rgba(168, 85, 247, 0.25);
}

.service-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.service-subtitle {
    font-size: 0.88rem;
    font-family: var(--font-mono);
    color: var(--cyan);
    margin-bottom: 16px;
}

.service-text {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.65;
    margin-bottom: 24px;
}

.service-checklist {
    list-style: none;
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.service-checklist li {
    font-size: 0.88rem;
    color: var(--text-slate);
    line-height: 1.5;
    position: relative;
    padding-left: 20px;
}

.service-checklist li::before {
    content: "▹";
    position: absolute;
    left: 0;
    color: var(--cyan);
    font-size: 0.9rem;
}

.service-checklist strong {
    color: var(--text-primary);
}

/* ================= INFRASTRUTTURE & DATACENTER ================= */
.infra-showcase {
    display: grid;
    grid-template-columns: 1.35fr 1fr;
    gap: 36px;
}

.infra-main-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.infra-title {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 14px;
}

.infra-text {
    font-size: 1.05rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 32px;
}

.infra-features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.infra-feature {
    display: flex;
    gap: 16px;
}

.feature-bullet {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--emerald);
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.25);
    width: 38px;
    height: 38px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.infra-feature h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.infra-feature p {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.55;
}

.infra-sidebar-card {
    background: linear-gradient(145deg, #0b1220 0%, #111a2f 100%);
    border: 1px solid rgba(0, 242, 254, 0.2);
    border-radius: var(--radius-lg);
    padding: 36px;
}

.badge-accent {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--cyan);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 14px;
}

.sidebar-heading {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 14px;
    line-height: 1.4;
}

.sidebar-desc {
    font-size: 0.92rem;
    color: var(--text-muted);
    margin-bottom: 20px;
    line-height: 1.6;
}

.sidebar-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 28px;
}

.sidebar-list li {
    font-size: 0.88rem;
    color: var(--text-slate);
    position: relative;
    padding-left: 20px;
    line-height: 1.5;
}

.sidebar-list li::before {
    content: "✔";
    position: absolute;
    left: 0;
    color: var(--emerald);
    font-size: 0.85rem;
}

.tech-stack-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.tech-stack-pills span {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--cyan);
    background: rgba(0, 242, 254, 0.08);
    border: 1px solid rgba(0, 242, 254, 0.2);
    padding: 4px 10px;
    border-radius: 4px;
}

/* ================= ISTITUZIONI & ACCADEMIA ================= */
.institution-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 32px;
}

.institute-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px;
    display: flex;
    flex-direction: column;
    position: relative;
}

.featured-institute {
    border-color: rgba(0, 242, 254, 0.3);
    box-shadow: 0 10px 30px -10px rgba(0, 242, 254, 0.1);
}

.institute-badge-top {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: var(--cyan);
    margin-bottom: 12px;
}

.badge-secondary {
    color: var(--emerald);
}

.institute-name {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.institute-role {
    font-size: 0.92rem;
    color: var(--cyan);
    font-family: var(--font-mono);
    margin-bottom: 18px;
}

.institute-body {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 24px;
}

.institute-link-wrap {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.btn-institute {
    align-self: flex-start;
}

.url-hint {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-dim);
}

.academic-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.academic-list li {
    font-size: 0.88rem;
    color: var(--text-slate);
    padding-left: 18px;
    position: relative;
}

.academic-list li::before {
    content: "•";
    color: var(--emerald);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.academic-supervision {
    background: rgba(16, 185, 129, 0.08);
    border-left: 3px solid var(--emerald);
    padding: 12px 16px;
    border-radius: 4px;
    font-size: 0.88rem;
    color: var(--text-slate);
}

/* ================= PUBBLICAZIONI & LIBRI ================= */
.books-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-bottom: 40px;
}

.book-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    transition: var(--transition);
}

.book-card:hover {
    border-color: rgba(168, 85, 247, 0.4);
    transform: translateY(-4px);
}

.book-cover-mockup {
    height: 170px;
    background: linear-gradient(135deg, #1e1b4b 0%, #0f172a 100%);
    border-radius: 8px;
    border: 1px solid rgba(168, 85, 247, 0.3);
    position: relative;
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.6);
}

.cover-blue {
    background: linear-gradient(135deg, #0c4a6e 0%, #0f172a 100%);
    border-color: rgba(56, 189, 248, 0.3);
}

.cover-green {
    background: linear-gradient(135deg, #064e3b 0%, #0f172a 100%);
    border-color: rgba(16, 185, 129, 0.3);
}

.book-spine {
    position: absolute;
    top: 0;
    left: 0;
    width: 8px;
    height: 100%;
    background: rgba(255, 255, 255, 0.15);
    border-top-left-radius: 8px;
    border-bottom-left-radius: 8px;
}

.book-publisher {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--cyan);
    letter-spacing: 2px;
}

.book-title {
    font-size: 1.15rem;
    font-weight: 800;
    color: #ffffff;
    line-height: 1.2;
    letter-spacing: -0.3px;
}

.book-subtitle {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.book-author {
    font-size: 0.82rem;
    color: var(--text-slate);
    font-weight: 600;
}

.book-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--purple);
    background: rgba(168, 85, 247, 0.1);
    padding: 3px 8px;
    border-radius: 4px;
    margin-bottom: 8px;
}

.book-info-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.book-info-desc {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.speaker-callout {
    display: flex;
    gap: 20px;
    align-items: center;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 24px 30px;
    border-radius: var(--radius-md);
}

.callout-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: rgba(168, 85, 247, 0.1);
    color: var(--purple);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.callout-icon svg {
    width: 24px;
    height: 24px;
}

.callout-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.callout-text {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* ================= SEZIONE CONTATTI ================= */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 40px;
}

.contact-info-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    display: flex;
    flex-direction: column;
}

.contact-card-title {
    font-size: 1.45rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.contact-card-intro {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.65;
    margin-bottom: 32px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 36px;
}

.method-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.method-item:hover {
    border-color: rgba(0, 242, 254, 0.3);
    background: var(--bg-card-hover);
}

.method-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: rgba(0, 242, 254, 0.1);
    color: var(--cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.method-icon svg {
    width: 22px;
    height: 22px;
}

.method-details {
    flex-grow: 1;
}

.method-label {
    display: block;
    font-size: 0.78rem;
    font-family: var(--font-mono);
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}

.method-value {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.method-value:hover {
    color: var(--cyan);
}

.method-sub {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.affiliations-box {
    margin-top: auto;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.affiliations-title {
    display: block;
    font-size: 0.8rem;
    font-family: var(--font-mono);
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 14px;
}

.affiliations-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.aff-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-slate);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    transition: var(--transition);
}

.aff-link:hover {
    color: var(--cyan);
    border-color: rgba(0, 242, 254, 0.3);
    background: var(--bg-card-hover);
}

/* Scheda Modulo Contatti */
.contact-form-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-card);
}

.form-card-title {
    font-size: 1.45rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.form-card-subtitle {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-bottom: 24px;
}

/* Feedback alert */
.form-feedback {
    padding: 16px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    line-height: 1.5;
}

.form-feedback.is-hidden { display: none; }

.form-feedback.is-success {
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid var(--emerald);
    color: #6ee7b7;
}

.form-feedback.is-error {
    background: rgba(239, 68, 68, 0.12);
    border: 1px solid var(--danger);
    color: #fca5a5;
}

.icon-feedback {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

/* Modulo & Campi */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-slate);
    margin-bottom: 8px;
}

.required {
    color: var(--cyan);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: #070b13;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--cyan);
    box-shadow: 0 0 0 3px rgba(0, 242, 254, 0.15);
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    background-size: 16px;
    padding-right: 40px;
}

select.form-control option {
    background-color: #0d1322;
    color: var(--text-primary);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

.form-privacy-note {
    font-size: 0.8rem;
    color: var(--text-dim);
    line-height: 1.5;
    margin-bottom: 24px;
}

/* ================= PULSANTI ================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.88rem;
}

.btn-primary {
    background: linear-gradient(135deg, #00f2fe 0%, #0284c7 100%);
    color: #04070c;
    font-weight: 700;
    box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 242, 254, 0.45);
    filter: brightness(1.1);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    border-color: var(--cyan);
    color: var(--cyan);
    background: rgba(0, 242, 254, 0.05);
    transform: translateY(-2px);
}

.btn-submit {
    width: 100%;
    padding: 14px 28px;
    font-size: 1rem;
    position: relative;
}

/* Spinner per invio AJAX */
.spinner {
    display: none;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(4, 7, 12, 0.3);
    border-top-color: #04070c;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.btn-submit.loading .btn-text,
.btn-submit.loading .btn-icon {
    display: none;
}

.btn-submit.loading .spinner {
    display: block;
}

/* Icone generiche */
.icon {
    width: 20px;
    height: 20px;
}

.icon-sm {
    width: 16px;
    height: 16px;
}

.icon-xs {
    width: 12px;
    height: 12px;
}

/* Toast di copia */
.copy-toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: #10b981;
    color: #04070c;
    font-size: 0.88rem;
    font-weight: 700;
    padding: 10px 18px;
    border-radius: 6px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    transform: translateY(100px);
    opacity: 0;
    transition: var(--transition);
    z-index: 2000;
    pointer-events: none;
}

.copy-toast.show {
    transform: translateY(0);
    opacity: 1;
}

/* ================= FOOTER ================= */
.footer {
    background: #030508;
    border-top: 1px solid var(--border-color);
    padding: 70px 0 30px 0;
    position: relative;
    z-index: 1;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 50px;
    border-bottom: 1px solid rgba(30, 41, 59, 0.5);
}

.footer-logo {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-primary);
    display: block;
    margin-bottom: 12px;
}

.footer-tagline {
    font-size: 0.92rem;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.footer-location {
    font-size: 0.85rem;
    color: var(--text-dim);
}

.footer-heading {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--cyan);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 16px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: var(--text-slate);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--cyan);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    font-size: 0.85rem;
    color: var(--text-dim);
}

/* ================= RESPONSIVE DESIGN ================= */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .hero-terminal-card {
        max-width: 600px;
    }

    .stats-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .infra-showcase {
        grid-template-columns: 1fr;
    }

    .institution-grid {
        grid-template-columns: 1fr;
    }

    .books-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 36px;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 1.85rem;
    }

    .nav-menu {
        position: fixed;
        top: 74px;
        left: 0;
        width: 100%;
        background: rgba(8, 12, 20, 0.98);
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        padding: 30px 24px;
        gap: 20px;
        transform: translateY(-150%);
        transition: var(--transition);
        backdrop-filter: blur(14px);
    }

    .nav-menu.open {
        transform: translateY(0);
    }

    .nav-toggle {
        display: block;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .infra-features-grid {
        grid-template-columns: 1fr;
    }

    .stats-row {
        grid-template-columns: 1fr;
    }

    .about-grid {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}