:root {
    --bg: #020617;
    --bg-alt: #020617;
    --header-bg: rgba(2, 6, 23, 0.96);
    --card: #0b1220;
    --primary: #f97316;           /* arancione CTA */
    --primary-dark: #ea580c;
    --secondary: #e5e7eb;
    --text: #f9fafb;
    --muted: #9ca3af;
    --border: #1f2937;
    --radius-lg: 20px;
    --radius-md: 14px;
    --shadow-soft: 0 22px 45px rgba(15, 23, 42, 0.8);
}

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

html, body {
    margin: 0;
    padding: 0;
    font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: var(--bg);
    color: var(--text);
    scroll-behavior: smooth;
}

a {
    color: #93c5fd;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Layout */

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 16px;
}

/* Header */

.header {
    position: sticky;
    top: 0;
    z-index: 40;
    background: var(--header-bg);
    border-bottom: 1px solid rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(12px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-img {
    height: 40px;
    width: auto;
    display: block;
}

.nav {
    display: flex;
    gap: 18px;
    align-items: center;
}

.nav a {
    font-size: 0.92rem;
    color: var(--muted);
    padding: 6px 10px;
    border-radius: 999px;
    transition: 0.2s ease;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.nav a:hover {
    color: var(--text);
    background: rgba(15, 23, 42, 0.85);
    text-decoration: none;
}

.nav-cta {
    background: var(--primary);
    color: #fff !important;
    font-weight: 600;
}

.nav-cta:hover {
    background: var(--primary-dark);
}

.nav-toggle {
    display: none;
    background: none;
    color: var(--text);
    border: 1px solid rgba(148, 163, 184, 0.6);
    border-radius: 999px;
    padding: 4px 10px;
    font-size: 1.1rem;
}

/* Hero */

.hero {
    padding: 80px 0 70px;
    background:
        linear-gradient(to bottom, rgba(15, 23, 42, 0.2), #020617 65%),
        radial-gradient(circle at top, #0f172a 0, #020617 60%);
    background-size: cover;
    background-position: center;
}

/* se hai l'immagine mettila qui */
.hero {
    background-image:
        linear-gradient(to bottom, rgba(15, 23, 42, 0.75), #020617 75%),
        url('/img/bg-objlab.jpg');
    background-size: cover;
    background-position: center;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 2.1fr) minmax(0, 1.4fr);
    gap: 36px;
    align-items: center;
}

.hero-text h1 {
    font-size: 2.5rem;
    line-height: 1.1;
    margin-bottom: 18px;
}

.hero-text p {
    color: var(--muted);
    font-size: 1rem;
    max-width: 640px;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 22px;
    margin-bottom: 8px;
}

.hero-note {
    font-size: 0.86rem;
    color: var(--muted);
}

.hero-card {
    background: rgba(15, 23, 42, 0.96);
    border-radius: var(--radius-lg);
    padding: 24px 22px;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(30, 64, 175, 0.6);
}

.hero-card h2 {
    margin-top: 0;
    font-size: 1.2rem;
}

.hero-card ul {
    padding-left: 20px;
    margin: 12px 0 12px;
    color: var(--muted);
    font-size: 0.95rem;
}

.hero-card-note {
    font-size: 0.85rem;
    color: var(--muted);
}

/* Buttons */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    padding: 10px 20px;
    font-size: 0.95rem;
    font-weight: 500;
    border: 1px solid transparent;
    cursor: pointer;
    transition: 0.2s ease;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #fdba74);
    color: #0b1120;
    box-shadow: 0 10px 25px rgba(249, 115, 22, 0.45);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    text-decoration: none;
}

.btn-secondary {
    background: transparent;
    border-color: rgba(148, 163, 184, 0.7);
    color: var(--text);
}

.btn-secondary:hover {
    background: rgba(15, 23, 42, 0.9);
    text-decoration: none;
}

.btn-full {
    width: 100%;
}

/* Sections */

.section {
    padding: 70px 0;
}

.section-alt {
    background: radial-gradient(circle at top, #020617 0, #020617 65%);
    border-top: 1px solid rgba(15, 23, 42, 0.9);
    border-bottom: 1px solid rgba(15, 23, 42, 0.9);
}

.section h2 {
    font-size: 1.7rem;
    margin-bottom: 12px;
}

.section-intro {
    color: var(--muted);
    max-width: 720px;
    font-size: 0.98rem;
    margin-bottom: 32px;
}

/* Grids / Cards */

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
}

.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
}

.card {
    background: rgba(15, 23, 42, 0.96);
    border-radius: var(--radius-md);
    padding: 20px 18px;
    border: 1px solid rgba(30, 64, 175, 0.6);
    box-shadow: var(--shadow-soft);
}

.card h3 {
    margin-top: 0;
    margin-bottom: 10px;
    font-size: 1.05rem;
}

.card p, .card li {
    font-size: 0.92rem;
    color: var(--muted);
}

/* List */

.list {
    margin: 0;
    padding-left: 18px;
    color: var(--muted);
    font-size: 0.92rem;
}

/* Timeline */

.timeline {
    display: grid;
    gap: 18px;
}

.timeline-step {
    position: relative;
    padding: 18px 18px 18px 48px;
    border-radius: var(--radius-md);
    background: rgba(15, 23, 42, 0.96);
    border: 1px solid rgba(30, 64, 175, 0.6);
    box-shadow: var(--shadow-soft);
}

.step-number {
    position: absolute;
    left: 14px;
    top: 18px;
    width: 22px;
    height: 22px;
    border-radius: 999px;
    background: var(--primary);
    color: #0b1120;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Case Study */

.case-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1.1fr);
    gap: 26px;
    align-items: flex-start;
}

.quote-box {
    background: rgba(15, 23, 42, 0.96);
    border-radius: var(--radius-lg);
    padding: 20px 18px;
    border: 1px solid rgba(30, 64, 175, 0.6);
    box-shadow: var(--shadow-soft);
}

.quote {
    font-style: italic;
    font-size: 0.95rem;
}

.quote-author {
    font-size: 0.85rem;
    color: var(--muted);
    margin-top: 8px;
}

/* Contatti */

.contact-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1.2fr);
    gap: 24px;
    align-items: flex-start;
}

.contact-form {
    background: rgba(15, 23, 42, 0.96);
    padding: 20px 18px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(30, 64, 175, 0.6);
    box-shadow: var(--shadow-soft);
}

.form-group {
    margin-bottom: 12px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 8px 10px;
    border-radius: 9px;
    border: 1px solid rgba(51, 65, 85, 0.9);
    background: #020617;
    color: var(--text);
    font-size: 0.9rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 1px rgba(249, 115, 22, 0.35);
}

.form-note {
    font-size: 0.8rem;
    color: var(--muted);
    margin-top: 4px;
    margin-bottom: 10px;
}

.form-success {
    margin-top: 10px;
    font-size: 0.88rem;
    color: #4ade80;
}

.contact-info {
    font-size: 0.92rem;
    color: var(--muted);
}

/* Footer */

.footer {
    border-top: 1px solid rgba(15, 23, 42, 0.9);
    padding: 18px 0 26px;
    background: #020617;
}

.footer-inner {
    text-align: center;
    font-size: 0.8rem;
    color: var(--muted);
}

.footer-note {
    margin-top: 4px;
}

/* Responsive */

@media (max-width: 900px) {
    .hero-grid,
    .grid-3,
    .grid-2,
    .case-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .hero {
        padding-top: 70px;
    }
}

@media (max-width: 780px) {
    .nav {
        display: none;
        position: absolute;
        right: 16px;
        top: 54px;
        flex-direction: column;
        align-items: flex-start;
        background: rgba(2, 6, 23, 0.98);
        padding: 8px;
        border-radius: 12px;
        border: 1px solid rgba(30, 64, 175, 0.7);
        min-width: 220px;
        box-shadow: var(--shadow-soft);
    }

    .nav a {
        width: 100%;
        padding: 8px 10px;
    }

    .nav-toggle {
        display: inline-flex;
    }

    .hero-text h1 {
        font-size: 2rem;
    }
}