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

:root {
    --color-bg: #0a0a0a;
    --color-text: #ffffff;
    --color-accent: #ffffff;
    --font-main: 'Helvetica Neue', Arial, sans-serif;
    --transition-speed: 0.3s;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    font-size: 16px;
}

a {
    color: var(--color-text);
    text-decoration: none;
    transition: all var(--transition-speed) ease;
}

ul {
    list-style: none;
}

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

/* ===================================
   HEADER & NAVIGATION
   =================================== */
#header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.4s ease;
    padding: 2rem 0;
}

#header.scrolled {
    background-color: rgba(0, 0, 0, 0.95);
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: fit-content;
}

.logo {
    font-size: 1.2rem;
    font-weight: 300;
    letter-spacing: 1px;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 1rem;
}

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

/* Navigation principale */
.main-nav > ul {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    column-gap: 2.5rem;
    row-gap: 0.5rem;
}

.main-nav > ul > li {
    position: relative;
}

.main-nav > ul > li > a {
    font-size: 0.95rem;
    font-weight: 300;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    padding: 0.5rem 0;
    position: relative;
    display: inline-block;
}

/* Underline effect on hover */
.main-nav > ul > li > a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-accent);
    transition: width var(--transition-speed) ease;
}

.main-nav > ul > li > a:hover::after,
.main-nav > ul > li > a.active::after {
    width: 100%;
}

/* Submenu styles */
.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: rgba(0, 0, 0, 0.95);
    min-width: 220px;
    padding: 0.5rem 0;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-speed) ease;
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    row-gap: 0;
}

.has-submenu:hover .submenu {
    opacity: 1;
    visibility: visible;
    margin-top: 0.5rem;
}

.submenu li {
    padding: 0;
    width: 100%;
}

.submenu a {
    display: block;
    padding: 0.25rem 2rem;
    font-size: 0.85rem;
    font-weight: 300;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    transition: all var(--transition-speed) ease;
    white-space: nowrap;
    line-height: 1.4;
}

.submenu a:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* ===================================
   HERO SLIDER
   =================================== */
.hero-slider {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    margin-top: 0;
}

.slider-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    display: block;
    text-decoration: none;
    color: inherit;
    z-index: 1;
    pointer-events: none;
}

.slide.active {
    opacity: 1;
    z-index: 5;
    pointer-events: auto;
}

.slide:hover .slide-title h2 {
    border-color: rgba(255, 255, 255, 0.2);
    background-color: rgba(0, 0, 0, 0.25);
}

.slide-image {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    filter: brightness(0.7);
    transition: filter 1.2s ease;
}

.slide-title {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 10;
}

.slide-title h2 {
    font-size: 2.5rem;
    font-weight: 200;
    letter-spacing: 5px;
    text-transform: uppercase;
    padding: 1.5rem 2.5rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background-color: rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(5px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    opacity: 0.5;
    transition: opacity 0.8s ease, border-color 0.8s ease, background-color 0.8s ease, box-shadow 0.8s ease;
    animation: breatheTitle 6s ease-in-out infinite;
}

@keyframes breatheTitle {
    0%, 100% {
        border-color: rgba(255, 255, 255, 0.1);
        background-color: rgba(0, 0, 0, 0.15);
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    }
    50% {
        border-color: rgba(255, 255, 255, 0.15);
        background-color: rgba(0, 0, 0, 0.2);
        box-shadow: 0 6px 24px rgba(0, 0, 0, 0.2);
    }
}

.slide-title h2:hover {
    animation-play-state: paused;
}

/* Slider navigation buttons */
.slider-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: transparent;
    border: none;
    width: 50px;
    height: 80px;
    cursor: pointer;
    z-index: 20;
    transition: all var(--transition-speed) ease;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    font-size: 0;
}

.slider-nav::before {
    content: '';
    width: 30px;
    height: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.4);
    border-right: 1px solid rgba(255, 255, 255, 0.4);
    transition: all var(--transition-speed) ease;
}

.slider-nav.prev::before {
    transform: rotate(-135deg);
}

.slider-nav.next::before {
    transform: rotate(45deg);
}

.slider-nav:hover::before {
    border-color: rgba(255, 255, 255, 0.9);
}

.slider-nav.prev {
    left: 2rem;
}

.slider-nav.next {
    right: 2rem;
}

/* ===================================
   MAIN CONTENT
   =================================== */
.main-content {
    background-color: #ffffff;
    padding: 5rem 3rem;
}

.intro {
    text-align: center;
    padding: 4rem 2rem;
    background-color: #ffffff;
    max-width: 900px;
    margin: 0 auto;
}

.intro h2 {
    font-size: 2.5rem;
    font-weight: 300;
    letter-spacing: 2px;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    color: #000;
}

.intro p {
    font-size: 1.1rem;
    font-weight: 300;
    line-height: 2.2;
    max-width: 700px;
    margin: 0 auto 2rem;
    color: #000;
    letter-spacing: 0.02em;
}

.intro p:last-child {
    margin-bottom: 0;
}

/* ===================================
   FOOTER
   =================================== */
.site-footer {
    background-color: rgba(0, 0, 0, 0.95);
    padding: 3rem 0 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 3rem;
    text-align: center;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 2rem;
}

.social-links a {
    font-size: 0.95rem;
    font-weight: 300;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    padding: 0.5rem 0;
    position: relative;
}

.social-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-accent);
    transition: width var(--transition-speed) ease;
}

.social-links a:hover::after {
    width: 100%;
}

.footer-content p {
    font-size: 0.85rem;
    font-weight: 300;
    opacity: 0.7;
}

/* ===================================
   RESPONSIVE
   =================================== */
@media (max-width: 1024px) {
    .header-content {
        padding: 0 2rem;
    }

    .main-nav > ul {
        column-gap: 1.5rem;
    }

    .slide-title h2 {
        font-size: 2.5rem;
        padding: 1.5rem 2rem;
    }
}

@media (max-width: 768px) {
    #header {
        padding: 1.5rem 0;
    }

    #header.scrolled {
        padding: 1rem 0;
    }

    .header-content {
        flex-direction: column;
        gap: 1rem;
        padding: 0 2rem;
    }

    .logo {
        font-size: 1rem;
    }

    .main-nav > ul {
        flex-wrap: wrap;
        justify-content: center;
        column-gap: 1rem;
        row-gap: 0.75rem;
    }

    .main-nav > ul > li > a {
        font-size: 0.85rem;
    }

    .submenu {
        position: fixed;
        left: 50%;
        transform: translateX(-50%);
        width: 90%;
        max-width: 300px;
    }

    .slide-title h2 {
        font-size: 1.8rem;
        padding: 1rem 1.5rem;
        letter-spacing: 1px;
    }

    .slider-nav {
        width: 40px;
        height: 40px;
        font-size: 1.5rem;
    }

    .slider-nav.prev {
        left: 1rem;
    }

    .slider-nav.next {
        right: 1rem;
    }

    .main-content {
        padding: 3rem 2rem;
    }

    .intro h2 {
        font-size: 2rem;
    }

    .intro p {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .slide-title h2 {
        font-size: 1.3rem;
        padding: 0.75rem 1rem;
    }

    .main-nav > ul {
        column-gap: 0.5rem;
        font-size: 0.75rem;
    }
}