/* ===========================
   International Italian Solutions
   Main Stylesheet
   Author: Emanuele
   =========================== */

/* === CSS Variables === */
:root {
    /* Colors - Strong Blue & Red Theme */
    --primary-blue: #002855;
    --secondary-blue: #0066CC;
    --accent-red: #DC143C;
    --dark-blue: #001a3d;
    --light-blue: #4A90E2;
    
    /* Neutral Colors */
    --white: #FFFFFF;
    --light-gray: #F8F9FA;
    --medium-gray: #E9ECEF;
    --dark-gray: #495057;
    --text-dark: #212529;
    --text-light: #6C757D;
    
    /* Typography */
    --font-primary: 'Montserrat', sans-serif;
    --font-secondary: 'Roboto', sans-serif;
    
    /* Spacing */
    --section-padding: 100px 0;
    --container-width: 1200px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.15);
}

/* === Reset & Base Styles === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-secondary);
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--white);
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-medium);
}

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

ul {
    list-style: none;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

.lead {
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--text-dark);
}

/* === Container === */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* === Language Selector === */
.language-dropdown {
    position: fixed;
    top: 80px;
    right: 20px;
    background: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    padding: 10px;
    z-index: 999;
    display: none;
    flex-direction: column;
    gap: 5px;
}

.language-dropdown.active {
    display: flex;
}

.lang-btn {
    padding: 10px 20px;
    border: none;
    background: transparent;
    cursor: pointer;
    font-family: var(--font-primary);
    font-size: 0.95rem;
    color: var(--text-dark);
    border-radius: 6px;
    transition: var(--transition-fast);
    text-align: left;
}

.lang-btn:hover {
    background: var(--light-gray);
    color: var(--primary-blue);
}

.lang-btn.active {
    background: var(--primary-blue);
    color: var(--white);
}

/* === Navigation === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition-medium);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-family: var(--font-primary);
    font-weight: 800;
    font-size: 1.5rem;
}

.logo-text {
    color: var(--primary-blue);
    margin-right: 0.5rem;
}

.logo-full {
    color: var(--accent-red);
    font-size: 0.9rem;
    font-weight: 600;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    font-family: var(--font-primary);
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-dark);
    padding: 0.5rem 0;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-red);
    transition: var(--transition-medium);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

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

.language-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition-medium);
}

.language-toggle:hover {
    background: var(--secondary-blue);
    transform: translateY(-2px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-blue);
    border-radius: 3px;
    transition: var(--transition-medium);
}

/* === Hero Section === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 50%, var(--accent-red) 100%);
    opacity: 0.95;
    z-index: -1;
}

.hero-background::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    text-align: center;
    color: var(--white);
    max-width: 900px;
    margin: 0 auto;
    z-index: 1;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    color: rgba(255, 255, 255, 0.95);
    font-weight: 300;
    animation: fadeInUp 1s ease 0.2s;
    animation-fill-mode: backwards;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    animation: fadeInUp 1s ease 0.4s;
    animation-fill-mode: backwards;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 50px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 20px;
    display: flex;
    justify-content: center;
    padding-top: 10px;
}

.scroll-indicator span {
    width: 6px;
    height: 10px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 3px;
    animation: scroll 2s infinite;
}

/* === Buttons === */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 1rem;
    border-radius: 8px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: var(--transition-medium);
    text-align: center;
}

.btn-primary {
    background: var(--accent-red);
    color: var(--white);
    border-color: var(--accent-red);
}

.btn-primary:hover {
    background: transparent;
    border-color: var(--white);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--primary-blue);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

/* === Section Styles === */
section {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-label {
    display: inline-block;
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--accent-red);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 0.5rem;
}

.section-title {
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

/* === About Section === */
.about {
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--light-gray);
    border-radius: 12px;
    transition: var(--transition-medium);
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.stat-number {
    display: block;
    font-family: var(--font-primary);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-red);
    margin-bottom: 0.5rem;
}

.stat-label {
    display: block;
    font-size: 0.95rem;
    color: var(--text-dark);
    font-weight: 600;
}

.about-image-placeholder {
    width: 100%;
    height: 500px;
    background: var(--light-gray);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

/* === Services Section === */
.services {
    background: var(--light-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.service-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-medium);
    border-top: 4px solid var(--primary-blue);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-top-color: var(--accent-red);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--white);
}

.service-title {
    color: var(--primary-blue);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.service-description {
    font-size: 1rem;
    line-height: 1.7;
}

/* === Why Us Section === */
.why-us {
    background: var(--white);
}

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
}

.why-us-item {
    position: relative;
    padding: 2rem;
    padding-left: 5rem;
}

.why-us-number {
    position: absolute;
    left: 0;
    top: 1.5rem;
    font-family: var(--font-primary);
    font-size: 3rem;
    font-weight: 800;
    color: var(--accent-red);
    opacity: 0.2;
}

.why-us-item h3 {
    color: var(--primary-blue);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.why-us-item p {
    font-size: 1rem;
    line-height: 1.7;
}

/* === Contact Section === */
.contact {
    background: var(--light-gray);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1.5rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-blue);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    flex-shrink: 0;
}

.contact-details h4 {
    color: var(--primary-blue);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.contact-details p {
    font-size: 0.95rem;
    margin: 0;
}

.contact-details a {
    color: var(--accent-red);
}

.contact-details a:hover {
    text-decoration: underline;
}

/* === Contact Form === */
.contact-form-wrapper {
    background: var(--white);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--shadow-md);
}

.contact-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-family: var(--font-primary);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    padding: 12px 16px;
    border: 2px solid var(--medium-gray);
    border-radius: 8px;
    font-family: var(--font-secondary);
    font-size: 1rem;
    color: var(--text-dark);
    transition: var(--transition-medium);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 40, 85, 0.1);
}

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

.form-message {
    padding: 1rem;
    border-radius: 8px;
    font-weight: 500;
    text-align: center;
    display: none;
}

.form-message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    display: block;
}

.form-message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    display: block;
}

/* === Footer === */
.footer {
    background: var(--primary-blue);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1.5rem;
    color: var(--white);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.95rem;
}

.footer-section ul li {
    margin-bottom: 0.8rem;
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition-fast);
}

.footer-section a:hover {
    color: var(--accent-red);
    padding-left: 5px;
}

.footer-year {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.6);
}

/* === Animations === */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateY(15px);
    }
}

/* Fade in on scroll */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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