/* Ti-Effe Service SRL - Base CSS CORRETTO
   File: css/public-base.css
   Global variables, resets, and utilities
*/

:root {
    /* Colors */
    --primary-dark: #2c5530;
    --primary-light: #4a7c59;
    --accent: #ff6b35;
    --accent-light: #ff8a65;
    --white: #ffffff;
    --black: #1a1a1a;
    --gray-dark: #333;
    --gray-medium: #666;
    --gray-light: #ddd;
    --gray-lighter: #f0f0f0;
    --gray-lightest: #f8f9fa;
    --green-check: #28a745;
    --green-dark: #218838;
    --red-error: #dc3545;
    --red-dark: #c82333;
    --yellow-warning: #ffc107;
    --blue-info: #17a2b8;
    --footer-bg: #1a1a1a;
    --footer-link: #B0BEC5;

    /* Spacing */
    --spacing-xs: 0.2rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 5rem;

    /* Typography */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.9rem;
    --font-size-base: 1rem;
    --font-size-md: 1rem;
    --font-size-lg: 1.1rem;
    --font-size-xl: 1.2rem;
    --font-size-2xl: 1.3rem;
    --font-size-3xl: 1.4rem;
    --font-size-4xl: 1.5rem;
    --font-size-5xl: 1.6rem;
    --font-size-6xl: 1.8rem;
    --font-size-hero: clamp(2rem, 5vw, 4rem);
    --font-size-section: 2.5rem;
    --font-size-heading: 2.2rem;
    --font-size-subheading: 1.8rem;
    --font-size-footer-heading: 18px;
    --font-size-footer-text: 14px;

    /* Sizes */
    --logo-height: 40px;
    --logo-height-sm: 35px;
    --logo-height-xs: 30px;
    --logo-width: 120px;
    --logo-width-sm: 100px;
    --logo-width-xs: 80px;
    --icon-size: 40px;
    --servizio-icon-size: 60px;
    --border-radius-sm: 5px;
    --border-radius-md: 8px;
    --border-radius-lg: 15px;
    --border-radius-xl: 20px;
    --border-radius-2xl: 25px;
    --border-radius-3xl: 30px;

    /* Shadows - CORRETTO */
    --shadow-sm: 0 2px 5px rgba(0,0,0,0.1);
    --shadow-md: 0 5px 15px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 25px rgba(0,0,0,0.15);
    --shadow-xl: 0 10px 30px rgba(0,0,0,0.1);
    --shadow-2xl: 0 20px 40px rgba(0,0,0,0.15);

    /* Transitions - CORRETTO */
    --transition-fast: 0.3s ease;
    --transition-smooth: 0.6s ease-out;

    /* Fonts */
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-heading: 'Montserrat', sans-serif;
}

/* Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Body - CORRETTO */
body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--gray-dark);
    background-color: var(--white);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
    color: var(--primary-dark);
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
}

h2 {
    font-size: var(--font-size-heading);
    font-weight: 600;
}

h3 {
    font-size: var(--font-size-subheading);
    font-weight: 600;
}

h4 {
    font-size: var(--font-size-4xl);
    font-weight: 500;
}

p {
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-primary { color: var(--primary-dark); }
.text-secondary { color: var(--gray-medium); }
.text-success { color: var(--green-check); }
.text-danger { color: var(--red-error); }
.text-warning { color: var(--yellow-warning); }

.bg-primary { background-color: var(--primary-dark); color: var(--white); }
.bg-secondary { background-color: var(--gray-lightest); }
.bg-success { background-color: var(--green-check); color: var(--white); }
.bg-danger { background-color: var(--red-error); color: var(--white); }
.bg-warning { background-color: var(--yellow-warning); color: var(--black); }

.m-0 { margin: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }
.mt-5 { margin-top: var(--spacing-2xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }
.mb-5 { margin-bottom: var(--spacing-2xl); }

.p-0 { padding: 0; }
.pt-1 { padding-top: var(--spacing-sm); }
.pt-2 { padding-top: var(--spacing-md); }
.pt-3 { padding-top: var(--spacing-lg); }
.pt-4 { padding-top: var(--spacing-xl); }
.pt-5 { padding-top: var(--spacing-2xl); }

.pb-1 { padding-bottom: var(--spacing-sm); }
.pb-2 { padding-bottom: var(--spacing-md); }
.pb-3 { padding-bottom: var(--spacing-lg); }
.pb-4 { padding-bottom: var(--spacing-xl); }
.pb-5 { padding-bottom: var(--spacing-2xl); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.align-items-center { align-items: center; }
.flex-wrap { flex-wrap: wrap; }
.flex-column { flex-direction: column; }

.rounded { border-radius: var(--border-radius-md); }
.rounded-lg { border-radius: var(--border-radius-lg); }
.rounded-circle { border-radius: 50%; }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

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

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-50px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(50px); }
    to { opacity: 1; transform: translateX(0); }
}

.fade-in-up { animation: fadeInUp var(--transition-smooth); }
.slide-in-left { animation: slideInLeft var(--transition-smooth); }
.slide-in-right { animation: slideInRight var(--transition-smooth); }

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

.fade-in { animation: fadeIn var(--transition-smooth); }
.slide-in { animation: slideIn var(--transition-fast); }

/* Intersection Observer Classes */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--transition-smooth);
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-lightest);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-dark);
    border-radius: var(--border-radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-light);
}

/* Loading States */
.loading-skeleton {
    background: linear-gradient(90deg, var(--gray-lighter) 25%, #e0e0e0 50%, var(--gray-lighter) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Image Lazy Loading */
.lazy-image {
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.lazy-image.loaded {
    opacity: 1;
}

/* Loading Spinner */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: var(--white);
    animation: spin 1s ease-in-out infinite;
}

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

/* Smooth Transitions */
a, button, input, textarea {
    transition: all var(--transition-fast);
}

/* Focus Styles */
*:focus {
    outline: 2px solid var(--primary-dark);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .header,
    .footer,
    .hero-buttons,
    .contact-form,
    .btn {
        display: none !important;
    }
    
    .hero {
        background: none !important;
        color: var(--black) !important;
        min-height: auto !important;
        margin-top: 0 !important;
    }
    
    * {
        background: none !important;
        color: var(--black) !important;
        box-shadow: none !important;
    }
}