/* =========================================
   1. SETUP E VARIABILI GLOBALI
   ========================================= */
:root {
    /* Palette Colori */
    --color-white: #ffffff;
    --color-black: #111111;       /* Nero Profondo per titoli */
    --color-gray: #666666;        /* Grigio elegante per testi */
    --color-accent: #FF8C00;      /* Dark Orange - Unico colore d'accento */
    --color-accent-hover: #e07b00;
    
    /* Sfondi */
    --bg-light: #f9f9f9;          /* Grigio chiarissimo per stacco sezioni */
    --bg-footer: #1a1a1a;         /* Sfondo scuro footer */
    
    /* Tipografia */
    --font-main: 'Lato', sans-serif;
    
    /* Layout */
    --container-width: 1200px;
    --header-height: 90px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    margin: 0;
    padding: 0;
    color: var(--color-gray);
    background-color: var(--color-white);
    line-height: 1.8;
    font-size: 16px;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--color-black);
    margin: 0 0 15px 0;
    font-weight: 700;
    line-height: 1.2;
}

a {
    text-decoration: none;
    transition: all 0.3s ease;
    color: inherit;
}

ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

/* Container Responsivo */
.container {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 15px;
}

/* =========================================
   2. HEADER & NAVIGAZIONE (Stile Luxury)
   ========================================= */
header {
    background: var(--color-white);
    height: var(--header-height);
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 9999;
    box-shadow: 0 2px 20px rgba(0,0,0,0.03); /* Ombra leggerissima */
    border-bottom: 1px solid #f0f0f0;
}

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

.logo img {
    height: 55px; /* Dimensione logo controllata */
    width: auto;
    display: block;
}

/* Menu Desktop */
.main-nav {
    display: flex;
    gap: 35px; /* Spaziatura ampia tra le voci */
}

.main-nav a {
    color: var(--color-black);
    font-size: 11px;           /* Font piccolo "Alta Moda" */
    font-weight: 800;          /* Grassetto */
    text-transform: uppercase; /* Tutto maiuscolo */
    letter-spacing: 2px;       /* Lettere spaziate */
    position: relative;
    padding: 5px 0;
}

/* Effetto Hover Sottolineatura Arancione */
.main-nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--color-accent);
    transition: width 0.3s ease;
}

.main-nav a:hover {
    color: var(--color-accent);
}

.main-nav a:hover::after {
    width: 100%;
}

/* Hamburger Menu (Mobile) */
.menu-toggle {
    display: none;
    font-size: 24px;
    color: var(--color-black);
    cursor: pointer;
}

/* =========================================
   3. HERO SLIDER (Animato)
   ========================================= */
.hero-slider {
    position: relative;
    height: 85vh; /* Altezza quasi tutto schermo */
    width: 100%;
    overflow: hidden;
    background-color: #000;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1.5s ease-in-out; /* Transizione dissolvenza */
    z-index: 1;
}

.slide.active {
    opacity: 1;
    z-index: 2;
}

/* Immagine con filtro scuro per leggibilità testo */
.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.65); /* 65% luminosità */
}

/* Contenuto Testo Slider */
.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    width: 90%;
    max-width: 800px;
    z-index: 3;
    color: var(--color-white);
}

/* Animazione "Salita" (FadeInUp) */
.slide h1, .slide p {
    opacity: 0;
    transform: translateY(40px);
}

.slide.active h1 {
    animation: fadeInUp 1s ease forwards;
    animation-delay: 0.5s;
}

.slide.active p {
    animation: fadeInUp 1s ease forwards;
    animation-delay: 0.8s;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide h1 {
    font-size: 4rem;
    font-weight: 300; /* Light */
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 20px;
    line-height: 1.1;
}

.slide h1 span {
    font-weight: 900; /* Bold */
    color: var(--color-accent);
}

.slide p {
    font-size: 1.3rem;
    font-weight: 400;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.9);
}

/* =========================================
   4. ELEMENTI GENERALI SEZIONI
   ========================================= */
section {
    padding: 100px 0;
}

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

.section-header {
    text-align: center;
    margin-bottom: 70px;
}

.section-header h2 {
    font-size: 2.2rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 20px;
}

.section-header p {
    color: var(--color-gray);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Linea Separatoria Arancione */
.separator {
    width: 50px;
    height: 3px;
    background: var(--color-accent);
    margin: 20px auto;
}

/* Bottoni Generali */
.btn {
    display: inline-block;
    background: var(--color-accent);
    color: var(--color-white);
    padding: 15px 40px;
    font-size: 12px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    box-shadow: 0 4px 10px rgba(255, 140, 0, 0.3);
}

.btn:hover {
    background: var(--color-accent-hover);
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(255, 140, 0, 0.4);
}

/* =========================================
   5. CARDS (Servizi & Protesi)
   ========================================= */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.card {
    background: var(--color-white);
    padding: 50px 30px;
    text-align: center;
    border: 1px solid #eeeeee;
    transition: all 0.3s ease;
}

.card:hover {
    border-color: var(--color-accent);
    box-shadow: 0 15px 40px rgba(0,0,0,0.08);
    transform: translateY(-5px);
}

.card i {
    font-size: 45px;
    color: var(--color-black);
    margin-bottom: 30px;
    transition: color 0.3s ease;
}

.card:hover i {
    color: var(--color-accent);
}

.card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.card p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #777;
}

/* =========================================
   6. FORM PRENOTAZIONE
   ========================================= */
.booking-wrap {
    background: var(--color-white);
    border: 1px solid #e0e0e0;
    padding: 60px;
    max-width: 700px;
    margin: 0 auto;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    border-top: 5px solid var(--color-accent);
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    font-size: 11px;
    text-transform: uppercase;
    font-weight: 800;
    margin-bottom: 10px;
    color: var(--color-black);
    letter-spacing: 0.5px;
}

.form-control {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: var(--font-main);
    font-size: 1rem;
    background: #fdfdfd;
    transition: border-color 0.3s;
}

.form-control:focus {
    border-color: var(--color-accent);
    outline: none;
    background: #fff;
}

/* =========================================
   7. FOOTER
   ========================================= */
footer {
    background: var(--bg-footer);
    color: #999;
    padding: 80px 0 30px;
    font-size: 14px;
}

footer h4 {
    color: var(--color-white);
    text-transform: uppercase;
    font-size: 1rem;
    letter-spacing: 1px;
    margin-bottom: 25px;
    border-left: 3px solid var(--color-accent);
    padding-left: 15px;
}

footer ul li {
    margin-bottom: 12px;
}

footer a {
    color: #999;
}

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

footer i {
    color: var(--color-accent);
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

.footer-bottom {
    border-top: 1px solid #333;
    margin-top: 60px;
    padding-top: 30px;
    text-align: center;
    color: #555;
    font-size: 12px;
}

/* =========================================
   8. RESPONSIVE (MEDIA QUERIES)
   ========================================= */
@media (max-width: 1024px) {
    .container { width: 95%; }
    .slide h1 { font-size: 3rem; }
}

@media (max-width: 992px) {
    /* Header Mobile */
    header { height: 70px; }
    
    .menu-toggle {
        display: block; /* Mostra Hamburger */
    }

    .main-nav {
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background: var(--color-white);
        flex-direction: column;
        gap: 0;
        border-bottom: 2px solid var(--color-accent);
        display: none; /* Nascosto di default */
        box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    }

    .main-nav.active {
        display: flex; /* Mostra quando attivo */
    }

    .main-nav a {
        padding: 20px;
        border-bottom: 1px solid #eee;
        text-align: center;
        font-size: 13px; /* Leggermente più grande su mobile */
    }
    
    .main-nav a::after { display: none; } /* Rimuovi effetto hover linea su mobile */

    /* Slide Mobile */
    .hero-slider { height: 60vh; }
    .slide h1 { font-size: 2.2rem; }
    .slide p { font-size: 1rem; }
}

@media (max-width: 600px) {
    section { padding: 60px 0; }
    
    .slide h1 { font-size: 1.8rem; letter-spacing: 1px; }
    
    .booking-wrap { padding: 30px 20px; }
    
    .grid-3 { grid-template-columns: 1fr; } /* Una colonna */
}
/* --- HERO SLIDER CSS (Da aggiungere al tuo style.css) --- */
.hero-slider {
    position: relative;
    width: 100%;
    height: 85vh; /* Altezza dello slider */
    overflow: hidden;
    background-color: #000;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0; /* Invisibile di base */
    transition: opacity 1.5s ease-in-out; /* Effetto Fade */
    z-index: 1;
}

.slide.active {
    opacity: 1; /* Visibile quando ha classe active */
    z-index: 2;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover; /* Riempie lo schermo senza deformarsi */
    filter: brightness(0.6); /* Scurisce l'immagine per leggere il testo */
}

.slide-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%); /* Centratura perfetta */
    text-align: center;
    width: 80%;
    z-index: 3;
}

/* Tipografia Slider */
.slide h1 {
    font-size: 4rem;
    color: #ffffff;
    text-transform: uppercase;
    font-weight: 300;
    margin-bottom: 20px;
}
.slide h1 span {
    color: #FF8C00; /* Il tuo Arancione */
    font-weight: 900;
}
.slide p {
    font-size: 1.5rem;
    color: #f1f1f1;
    font-weight: 300;
}

/* ANIMAZIONI TESTO */
/* Stato iniziale: nascosto e spostato in basso */
.slide h1, .slide p {
    opacity: 0;
    transform: translateY(50px);
}

/* Quando la slide è attiva: sale e appare */
.slide.active h1 {
    animation: fadeInUp 1s forwards 0.5s; /* Parte dopo 0.5s */
}
.slide.active p {
    animation: fadeInUp 1s forwards 0.8s; /* Parte dopo 0.8s */
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive per Mobile */
@media (max-width: 768px) {
    .hero-slider { height: 60vh; }
    .slide h1 { font-size: 2rem; }
    .slide p { font-size: 1rem; }
}
/* --- BARRA PRENOTAZIONE SLIDER --- */
.slider-bottom-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.7); /* Striscia nera opaca al 70% */
    padding: 20px 0;
    text-align: center;
    z-index: 10; /* Z-index alto per stare SOPRA le immagini */
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-slider-cta {
    background-color: var(--color-accent); /* Arancione #FF8C00 */
    color: var(--color-white);
    padding: 15px 50px; /* Bottone grande e cliccabile */
    font-size: 14px;
    font-weight: 900;
    text-transform: uppercase;
    letter-spacing: 2px;
    border-radius: 4px;
    display: inline-block;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 140, 0, 0.4); /* Ombra arancione */
}

.btn-slider-cta:hover {
    background-color: var(--color-white);
    color: var(--color-accent);
    transform: translateY(-3px);
}

/* Adattamento Mobile: riduciamo un po' la barra su schermi piccoli */
@media (max-width: 768px) {
    .slider-bottom-bar {
        padding: 15px 0;
    }
    .btn-slider-cta {
        padding: 12px 30px;
        font-size: 12px;
        width: 80%; /* Su mobile occupa quasi tutta la larghezza */
        display: block;
        margin: 0 auto;
    }
}