/* =========================
   RESET & BASE VARIABLES
========================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --nav-height: 5.5rem;
    --m-bg: #0f172a;
    --section-alt: #131d31;
    --nav-bg: rgba(15, 23, 42, 0.9);
    --m-text1: #f1f5f9;
    --m-text2: #94a3b8;
    --m-blue: #3b82f6;
    --m-orange: #f97316;
    --h-text: #60a5fa;
    --m-orange-hover: #ea580c;
    --n-nav: #60a5fa;
    --n-back: #2563eb;
    --card: #1e293b;
    --h-text3: #f97316;
    --card-text-bg: #273752;
    --shadow: 0 0.625rem 1.5625rem -0.3125rem rgba(0, 0, 0, 0.35);
    --border: rgba(255, 255, 255, 0.08);
}

@media (prefers-color-scheme: light) {
    :root {
        --m-bg: #e2e8f0;         
        --section-alt: #f1f5f9;  
        --nav-bg: rgba(241, 245, 249, 0.9);
        --m-text1: #1e293b;      
        --m-text2: #475569;
        --h-text3: #f97316;
        --m-blue: #2563eb;
        --h-text: #ea580c;
        --m-orange: #f97316;     
        --m-orange-hover: #ea580c;
        --n-nav: #fb923c;
        --n-back: #2563eb;
        --card: #ffffff; 
        --card-text-bg: #ffffff;
        --shadow: 0 0.625rem 1.5625rem -0.3125rem rgba(0, 0, 0, 0.08);
        --border: rgba(0, 0, 0, 0.12);
    }
}

html {
    scroll-behavior: smooth;
    font-size: 100%;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    color: var(--m-text1);
    background-color: var(--m-bg);
    background-image: 
        radial-gradient(circle at 0% 0%, rgba(37, 99, 235, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 100% 100%, rgba(249, 115, 22, 0.12) 0%, transparent 50%);
    background-attachment: fixed;
    background-repeat: no-repeat;
    transition: background-color 0.4s ease, color 0.4s ease;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    line-height: 1.25;
}

/* =========================
   ANIMAZIONI FADE-IN
========================= */
.fade-in {
    opacity: 0;
    transform: translateY(1.5rem);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* =========================
   LAYOUT & UTILITIES
========================= */
.container {
    width: 100%;
    max-width: 75rem;
    margin: 0 auto;
    padding: 0 1.25rem;
}

.text-center { text-align: center; }
.text-left { text-align: left; }

.alt-bg {
    background-color: var(--section-alt);
    border-top: 0.0625rem solid var(--border);
    border-bottom: 0.0625rem solid var(--border);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* =========================
   NAVIGATION
========================= */
.navbar .container {
    max-width: 100%;
    padding: 0 4%;
}

.navbar {
    background: var(--nav-bg);
    backdrop-filter: blur(0.75rem);
    -webkit-backdrop-filter: blur(0.75rem);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    border-bottom: 0.0625rem solid var(--border);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    width: 100%;
}

.brand-nav {
    display: flex;
    align-items: center;
    height: 100%;
}

.nav-logo {
    height: clamp(3rem, 7vh, 4.5rem);
    width: auto;
    display: block;
    filter: drop-shadow(0 0 0.05rem currentColor);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 1.25rem;
    align-items: center;
    margin: 0;
    padding: 0;
}

.nav-links a {
    text-decoration: none;
    color: #ffffff;
    background-color: var(--n-back);
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.5rem 1.25rem; 
    border-radius: 0.125rem;
    transition: background-color 0.3s ease, transform 0.2s ease;
    display: inline-block;
}

.nav-links a:hover {
    background-color: var(--n-nav);
    transform: translateY(-0.125rem);
}

.hamburger {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 1.5rem;
    height: 0.1875rem;
    margin: 0.25rem auto;
    background-color: var(--m-text1);
    transition: all 0.3s ease-in-out;
    border-radius: 0.125rem;
}

/* =========================
   HERO SECTION
========================= */
.hero-section {
    min-height: calc(100dvh - var(--nav-height));
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(1.25rem, 3vh, 2.5rem) 0;
}

.hero-container {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
}

.hero-content {
    width: 100%;
    max-width: 52rem;
    text-align: left;
    display: flex;
    flex-direction: column;
}

.hero-content h1 {
    font-size: clamp(1.65rem, 3.8vw, 2.85rem);
    margin-bottom: clamp(0.625rem, 1.8vh, 1.25rem);
    font-weight: 800;
    color: var(--m-text1);
}

.hero-content .highlight {
    color: var(--m-orange);
}

.hero-content p.subtitle {
    font-size: clamp(0.9rem, 1.4vw, 1.05rem);
    margin-bottom: clamp(0.875rem, 2vh, 1.5rem);
    color: var(--m-text2);
    line-height: 1.55;
}

.benefits {
    background-color: var(--card);
    padding: clamp(0.875rem, 2vh, 1.35rem) clamp(1rem, 2vw, 1.5rem);
    margin-bottom: clamp(1rem, 2.5vh, 1.75rem);
    border-radius: 0.25rem;
    box-shadow: var(--shadow);
    border: 0.0625rem solid var(--border);
}

.benefits ul { 
    list-style: none; 
}

.benefits li {
    font-size: clamp(0.85rem, 1.2vw, 0.98rem);
    margin-bottom: clamp(0.4rem, 1vh, 0.75rem);
    padding-left: 2.25rem;
    position: relative;
    color: var(--m-text1);
    line-height: 1.45;
}

.benefits li:last-child { 
    margin-bottom: 0; 
}

.benefits li::before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 0.1rem;
    background: var(--m-orange);
    color: #ffffff;
    width: 1.35rem;
    height: 1.35rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: bold;
}

.cta-wrapper {
    display: flex;
    justify-content: flex-start;
}

.cta-button {
    position: static; 
    background-color: var(--m-orange);
    color: #ffffff !important;
    padding: clamp(0.75rem, 1.8vh, 1rem) clamp(1.5rem, 3vw, 2.25rem);
    font-size: clamp(0.95rem, 1.3vw, 1.1rem);
    font-weight: 700;
    text-decoration: none;
    border-radius: 0.125rem;
    display: inline-block;
    box-shadow: 0 0.25rem 0.9375rem rgba(249, 115, 22, 0.3);
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    text-align: center;
}

.cta-button:hover {
    background-color: var(--m-orange-hover);
    transform: translateY(-0.1875rem);
    box-shadow: 0 0.375rem 1.25rem rgba(249, 115, 22, 0.45);
}

/* =========================
   SEZIONI GENERICHE & SERVIZI
========================= */
section { 
    padding: clamp(3rem, 8vh, 5.5rem) 0; 
}

section h2 {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    color: var(--m-blue);
    margin-bottom: clamp(2rem, 5vh, 3.5rem);
    text-align: center;
    font-weight: 800;
}

.services-list {
    display: flex;
    flex-direction: column;
    gap: clamp(2rem, 5vh, 3.5rem);
}

.service-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: stretch; 
    position: relative;
    --scroll-progress: 0;
}

.service-title-card {
    background-color: var(--m-orange); 
    padding: clamp(1.5rem, 3vw, 2.5rem);
    color: #ffffff; 
    position: relative;
    z-index: 2;
    clip-path: polygon(0% 0%, 100% 0%, calc(100% - 1.875rem) 50%, 100% 100%, 0% 100%);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    justify-content: center;
    transform: translateX(calc(-10rem * (1 - var(--scroll-progress))));
    opacity: var(--scroll-progress);
    will-change: transform, opacity;
}

.service-title-card h3 {
    font-size: clamp(1.25rem, 2vw, 1.65rem);
    color: #ffffff; 
}

.service-text-card {
    background-color: var(--card-text-bg); 
    padding: clamp(1.5rem, 3vw, 2.5rem) clamp(1.5rem, 3vw, 2.5rem) clamp(1.5rem, 3vw, 2.5rem) clamp(2.25rem, 4vw, 3.8rem);
    color: var(--m-text2);
    position: relative;
    z-index: 1;
    margin-left: -1.8125rem; 
    clip-path: polygon(1.875rem 0%, 100% 0%, 100% 100%, 1.875rem 100%, 0% 50%);
    border-right: 0.25rem solid var(--m-blue);
    box-shadow: 0 0.9375rem 2.5rem -0.3125rem rgba(0, 0, 0, 0.45); 
    display: flex;
    flex-direction: column;
    justify-content: center;
    transform: translateX(calc(10rem * (1 - var(--scroll-progress))));
    opacity: var(--scroll-progress);
    will-change: transform, opacity;
}

/* =========================
   VALUE PROPOSITION
========================= */
.value-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: clamp(1.25rem, 3vw, 2.1875rem);
}

.section-content {
    font-size: clamp(0.9rem, 1.4vw, 1.05rem);
    margin-bottom: clamp(0.875rem, 2vh, 1.5rem);
    color: var(--m-text2);
    line-height: 1.55;
}

.lead-text { 
    padding-bottom: 2rem; 
}

.value-point {
    background: var(--section-alt);
    padding: clamp(1.5rem, 3vw, 2.25rem);
    border-radius: 0;
    box-shadow: var(--shadow);
    border: 0.0625rem solid var(--border);
    border-left: 0.4rem solid var(--m-orange);
    transition: transform 0.3s ease, opacity 0.8s ease;
}

.value-point:hover { 
    transform: translateY(-0.3125rem); 
}

.value-point h3 {
    color: var(--m-blue);
    margin-bottom: 0.75rem;
    font-size: clamp(1.15rem, 1.8vw, 1.4rem);
}

.value-point p { 
    color: var(--m-text2); 
    font-size: clamp(0.875rem, 1.1vw, 1rem);
}

.value-point .kw {
    color: var(--m-text2);
    font-weight: 600;
    transition: color 0.3s ease;
}

.value-point:hover .kw {
    color: var(--m-orange);
}

/* =========================
   FORM DI CONTATTO
========================= */
.contact-wrapper {
    max-width: 42rem;
    margin: 0 auto;
}

.contact-intro {
    text-align: center;
    color: var(--m-text2);
    margin-bottom: 2rem;
    font-size: clamp(0.95rem, 1.2vw, 1.1rem);
}

.contact-form {
    background: var(--card);
    padding: clamp(1.5rem, 3vw, 2.5rem);
    border-radius: 0.375rem;
    border: 0.0625rem solid var(--border);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    text-align: left;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--m-text1);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="tel"],
.form-group textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--m-text1);
    background-color: var(--m-bg);
    border: 0.0625rem solid var(--border);
    border-radius: 0.25rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--m-blue);
    box-shadow: 0 0 0 0.1875rem rgba(59, 130, 246, 0.25);
}

.checkbox-group {
    margin-top: 0.25rem;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.625rem;
    font-size: 0.875rem;
    color: var(--m-text2);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    margin-top: 0.2rem;
    accent-color: var(--m-orange);
    width: 1rem;
    height: 1rem;
    cursor: pointer;
}

.checkbox-label a {
    color: var(--m-blue);
    text-decoration: underline;
}

.checkbox-label a:hover {
    color: var(--m-orange);
}

.submit-btn {
    border: none;
    cursor: pointer;
    width: 100%;
    margin-top: 0.5rem;
    font-family: inherit;
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.form-status {
    margin-top: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: 0.25rem;
    font-size: 0.9rem;
    text-align: center;
    display: none;
}

.form-status.info {
    display: block;
    background-color: rgba(59, 130, 246, 0.15);
    color: var(--m-blue);
    border: 1px solid var(--m-blue);
}

.form-status.success {
    display: block;
    background-color: rgba(34, 197, 94, 0.15);
    color: #22c55e;
    border: 1px solid #22c55e;
}

.form-status.error {
    display: block;
    background-color: rgba(239, 68, 68, 0.15);
    color: #ef4444;
    border: 1px solid #ef4444;
}

/* =========================
   FOOTER & LEGAL COMPLIANCE
========================= */
footer {
    background: #060b13;
    color: #e5e5e5;
    text-align: center;
    padding: clamp(3rem, 6vh, 4.375rem) 0 2.5rem;
    border-top: 0.0625rem solid var(--border);
}

footer h2 { 
    color: #ffffff; 
    margin-bottom: 0.75rem; 
    font-size: clamp(1.5rem, 2.8vw, 2rem); 
}

footer .location {
    font-size: 0.95rem;
    color: var(--m-text2);
    margin-bottom: 0.25rem;
}

footer .piva {
    font-size: 0.9rem;
    color: var(--m-text2);
    margin-bottom: 0.75rem;
    font-weight: 500;
}

.footer-email {
    display: inline-block;
    color: var(--m-orange);
    font-weight: bold;
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-email:hover {
    color: var(--m-orange-hover);
}

.legal-links {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
    margin: 1.5rem 0 1rem;
    font-size: 0.875rem;
}

.legal-links a {
    color: var(--m-text2);
    text-decoration: none;
    transition: color 0.2s ease;
}

.legal-links a:hover {
    color: var(--m-orange);
    text-decoration: underline;
}

.legal-links .separator {
    color: var(--m-text2);
    opacity: 0.4;
}

footer .copyright { 
    margin-top: 1.5rem; 
    font-size: 0.875rem; 
    color: #666666; 
}

/* =========================
   RESPONSIVE DESIGN
========================= */
@media (max-width: 62rem) {
    .service-row {
        grid-template-columns: 1fr;
    }

    .service-title-card {
        clip-path: none;
        border-radius: 0.25rem 0.25rem 0 0;
        transform: translateY(calc(-4rem * (1 - var(--scroll-progress))));
    }

    .service-text-card {
        clip-path: none;
        margin-left: 0;
        border-radius: 0 0 0.25rem 0.25rem;
        border-right: none;
        border-left: 0.3125rem solid var(--m-blue);
        transform: translateY(calc(4rem * (1 - var(--scroll-progress))));
    }
}

@media (max-width: 48rem) {
    .hamburger { 
        display: block; 
    }

    .hamburger.toggle span:nth-child(1) {
        transform: rotate(-45deg) translate(-0.3rem, 0.35rem);
    }
    .hamburger.toggle span:nth-child(2) {
        opacity: 0;
    }
    .hamburger.toggle span:nth-child(3) {
        transform: rotate(45deg) translate(-0.3rem, -0.35rem);
    }
    
    .nav-links {
        position: fixed;
        left: -100%;
        top: var(--nav-height);
        flex-direction: column;
        background: var(--nav-bg);
        backdrop-filter: blur(1rem);
        -webkit-backdrop-filter: blur(1rem);
        width: 100%;
        text-align: center;
        transition: left 0.3s ease-in-out;
        padding: 2rem 0;
        gap: 1.25rem;
        border-bottom: 0.0625rem solid var(--border);
    }

    .nav-links.active { 
        left: 0; 
    }

    .nav-links a {
        width: 80%;
        max-width: 20rem;
    }

    .value-grid { 
        grid-template-columns: 1fr; 
    }
    
    .cta-wrapper {
        justify-content: center;
    }
    
    .cta-button {
        width: 100%;
    }

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