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

body {
    background: #0a0a0a;
    color: #fff;
    font-family: 'Inter', sans-serif;
}

/* HEADER */
header {
    position: fixed;
    width: 100%;
    padding: 20px 60px;
    display: flex;
    justify-content: space-between;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(10px);
    z-index: 100;
}

.logo {
    font-family: 'Playfair Display', serif;
    font-size: 22px;
    color: white;
    text-decoration: none;
}

nav a {
    margin-left: 25px;
    color: #aaa;
    text-decoration: none;
    transition: 0.3s;
}

nav a:hover {
    color: white;
}

/* HERO */
.hero {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 20px;
}

.hero h1 {
    font-family: 'Playfair Display', serif;
    font-size: 42px;
    margin-bottom: 20px;
}

.hero p {
    color: #aaa;
    margin-bottom: 30px;
}

/* BUTTON */
.btn {
    display: inline-block;
    padding: 12px 25px;
    border: 1px solid white;
    color: white;
    background: none;
    text-decoration: none;
    border-radius: 10px;
    transition: 0.3s;
    cursor: pointer;
    font-family: 'Inter', sans-serif;
    font-size: 16px;
}

.btn:hover {
    background: white;
    color: black;
}

/* OFFERS */
.offers {
    padding: 120px 20px;
    text-align: center;
}

.cards {
    display: flex;
    gap: 30px;
    justify-content: center;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: auto;
}

/* CARD BASE */
.card {
    position: relative;
    background: #111;
    padding: 30px;
    width: 260px;
    border-radius: 20px;
    border: 1px solid #222;
    transition: all 0.4s ease;
    overflow: hidden;
}

/* LUMIÈRE */
.card::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 20px;
    background: radial-gradient(circle at 50% 0%, rgba(255,255,255,0.15), transparent 60%);
    opacity: 0;
    transition: 0.4s;
}

/* HOVER GLOBAL */
.card:hover {
    transform: translateY(-12px) scale(1.03);
    border-color: rgba(255,255,255,0.3);
    box-shadow:
        0 20px 40px rgba(0,0,0,0.6),
        0 0 20px rgba(255,255,255,0.05);
}

.card:hover::after {
    opacity: 1;
}

/* TEXT */
.card h3 {
    font-family: 'Playfair Display', serif;
    margin-bottom: 10px;
}

.subtitle {
    color: #888;
    margin-bottom: 15px;
}

.card ul {
    list-style: none;
    margin: 20px 0;
}

.card li {
    color: #bbb;
    margin: 8px 0;
}

/* PRIX */
.price {
    font-size: 24px;
    margin-top: 10px;
}

.old-price {
    text-decoration: line-through;
    color: #666;
}

.new-price {
    color: gold;
    font-size: 28px;
    font-weight: bold;
}

/* PORTFOLIO */
.portfolio {
    border: 2px solid gold;
}

.portfolio:hover {
    transform: translateY(-14px) scale(1.05);
    box-shadow:
        0 25px 50px rgba(0,0,0,0.7),
        0 0 30px rgba(255,215,0,0.4);
}

/* STANDARD */
.highlight {
    position: relative;
    border-radius: 20px;
    background: #111;
    padding: 30px;
    width: 260px;
    z-index: 0;
}

/* CONTOUR GRADIENT FIABLE */
.highlight::before {
    content: "";
    position: absolute;
    inset: -2px;
    border-radius: 22px;
    padding: 2px;
    background: linear-gradient(45deg, #ff0055, #ff9900, #33ccff, #ff00ff);
    
    /* technique solide */
    -webkit-mask:
      linear-gradient(#000 0 0) content-box,
      linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask:
      linear-gradient(#000 0 0) content-box,
      linear-gradient(#000 0 0);
    mask-composite: exclude;
    
    z-index: -1;
}

.highlight:hover {
    transform: translateY(-16px) scale(1.06);
    box-shadow:
        0 30px 60px rgba(0,0,0,0.8),
        0 0 35px rgba(255,255,255,0.08);
}

/* CONTACT */
.contact {
    padding: 120px 20px;
    text-align: center;
}

.contact p {
    color: #aaa;
    margin-bottom: 30px;
}

/* EMAIL BOX */
.email-box {
    display: inline-block;
    padding: 15px 25px;
    background: linear-gradient(45deg, #ffd700, #ffed4e);
    color: #000;
    border-radius: 10px;
    font-family: 'Inter', sans-serif;
    font-size: 18px;
    font-weight: 500;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
    transition: 0.3s ease;
    cursor: pointer;
    user-select: all;
}

.email-box:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
}

.btn-contact {
    display: inline-block;
}

/* SCROLL ANIMATION */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: 0.8s ease;
    pointer-events: auto;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* RESPONSIVE */
@media(max-width: 768px){
    .cards {
        flex-direction: column;
        align-items: center;
    }
}