/* ============================================
   LUCCA.TAXI - CSS PRINCIPALE
   Colori Brand: Giallo #D4A574, Rosso #E63946
   Colori Partner: Azzurro itTaxi #0D9FDB
   ============================================ */

/* ===== ROOT VARIABLES ===== */
:root {
    /* Brand Colors - Dal biglietto da visita */
    --color-yellow: #D4A574;     /* Giallo/Oro lucca.taxi */
    --color-red: #E63946;         /* Rosso lucca.taxi */
    --color-ittaxi: #0D9FDB;      /* Azzurro itTaxi ufficiale */
    --color-whatsapp: #25D366;    /* Verde WhatsApp */
    
    /* Neutral Colors */
    --color-black: #1A1A1A;
    --color-gray-dark: #2B2D42;
    --color-gray: #666666;
    --color-gray-light: #E0E0E0;
    --color-white: #FFFFFF;
    --color-bg-light: #F8F9FA;
    
    /* Typography */
    --font-primary: 'Fira Sans', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Borders */
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 8px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 16px rgba(0,0,0,0.16);
    
    /* Transitions */
    --transition: all 0.3s ease;
}

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

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

body {
    font-family: var(--font-primary);
    font-weight: var(--font-weight-normal);
    color: var(--color-gray-dark);
    background-color: var(--color-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: 1.2;
    color: var(--color-black);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

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

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

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

/* ===== HEADER & NAVIGATION ===== */
.header {
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    gap: var(--spacing-md);
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: var(--font-weight-bold);
    font-size: 1.25rem;
    color: var(--color-yellow);
}

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

.logo-text {
    color: var(--color-yellow);
    font-family: 'Fira Sans', sans-serif;
    font-weight: var(--font-weight-bold);
}

/* HAMBURGER MENU - A SINISTRA */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
    order: -1; /* Forza a sinistra */
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 3px;
    background-color: var(--color-gray-dark);
    transition: var(--transition);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-link {
    font-weight: var(--font-weight-medium);
    color: var(--color-gray-dark);
    padding: var(--spacing-xs) 0;
    position: relative;
}

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

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

.nav-link.active {
    color: var(--color-yellow);
}

/* Language Switcher */
.lang-switcher {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.lang-btn {
    background: none;
    border: none;
    font-size: 0.875rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-gray);
    cursor: pointer;
    padding: var(--spacing-xs);
    transition: var(--transition);
}

.lang-btn:hover,
.lang-btn.active {
    color: var(--color-yellow);
}

.lang-separator {
    color: var(--color-gray-light);
}

/* ===== HERO SECTION ===== */
.hero {
    background: linear-gradient(135deg, var(--color-yellow) 0%, var(--color-red) 100%);
    color: var(--color-white);
    padding: var(--spacing-xxl) 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-white);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.95;
}

.hero-ctas {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--color-yellow);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: #C89554;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: #D32F3C;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Pulsante itTaxi - Azzurro ufficiale */
.btn-ittaxi {
    background-color: var(--color-ittaxi);
    color: var(--color-white);
}

.btn-ittaxi:hover {
    background-color: #0B8AC7;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Pulsante WhatsApp - Verde */
.btn-whatsapp {
    background-color: var(--color-whatsapp);
    color: var(--color-white);
}

.btn-whatsapp:hover {
    background-color: #20BA5A;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Pulsante Phone - Rosso */
.btn-phone {
    background-color: var(--color-red);
    color: var(--color-white);
}

.btn-phone:hover {
    background-color: #D32F3C;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
}

.btn-small {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.875rem;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* ===== SECTIONS ===== */
section {
    padding: var(--spacing-xxl) 0;
}

.bg-light {
    background-color: var(--color-bg-light);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--color-black);
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--color-gray);
    margin-bottom: var(--spacing-xl);
}

/* ===== FEATURES GRID ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.feature-card {
    background-color: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    font-size: 3rem;
    color: var(--color-yellow);
    margin-bottom: var(--spacing-md);
}

.feature-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-black);
}

.feature-text {
    color: var(--color-gray);
    margin-bottom: 0;
}

/* ===== FOOTER ===== */
.footer {
    background-color: var(--color-gray-dark);
    color: var(--color-white);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-title {
    font-size: 1.5rem;
    color: var(--color-yellow);
    margin-bottom: var(--spacing-md);
}

.footer-subtitle {
    font-size: 1rem;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.footer-text {
    color: var(--color-gray-light);
    margin-bottom: var(--spacing-md);
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255,255,255,0.1);
    border-radius: 50%;
    color: var(--color-white);
    font-size: 1.25rem;
    transition: var(--transition);
}

.footer-social a:hover {
    background-color: var(--color-yellow);
    transform: translateY(-2px);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: var(--color-gray-light);
}

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

.footer-contact {
    list-style: none;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    color: var(--color-gray-light);
}

.footer-contact a {
    color: var(--color-gray-light);
}

.footer-contact a:hover {
    color: var(--color-yellow);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255,255,255,0.1);
    color: var(--color-gray-light);
}

/* ===== UTILITY CLASSES ===== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.hidden { display: none !important; }