/* Color Palette & Variables */
:root {
    --black: #0f0f0f;
    --dark: #1a1a1a;
    --red: #C8102E; /* Japanese deep red */
    --red-hover: #9c0c24;
    --white: #ffffff;
    --cream: #f9f6f0;
    --grey: #888888;
    
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--cream);
    background-color: var(--black);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Utilities */
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
.max-w-md { max-width: 800px; margin: 0 auto; }
.text-center { text-align: center; }
.text-red { color: var(--red); }
.text-dark { color: var(--dark); }
.text-white { color: var(--white); }
.bg-dark { background-color: var(--dark); }
.bg-light { background-color: var(--cream); color: var(--dark); }
.bg-red { background-color: var(--red); }
.bg-black { background-color: var(--black); }
.mb-sm { margin-bottom: 15px; }
.mb-md { margin-bottom: 30px; }
.mt-md { margin-top: 30px; }
.mt-lg { margin-top: 50px; }
.img-fluid { width: 100%; height: auto; display: block; object-fit: cover;}
.rounded { border-radius: 8px; }
.shadow { box-shadow: 0 10px 30px rgba(0,0,0,0.5); }

/* Typography */
h1, h2, h3 { font-family: var(--font-heading); }
.hero-title { font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 800; line-height: 1.1; margin-bottom: 20px; text-shadow: 2px 2px 10px rgba(0,0,0,0.8); }
.hero-subtitle { font-size: clamp(1.1rem, 2vw, 1.3rem); font-weight: 400; max-width: 600px; margin: 0 auto 30px; text-shadow: 1px 1px 5px rgba(0,0,0,0.8); }
.section-title { font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; margin-bottom: 20px; }
.card-title { font-size: 1.5rem; margin-bottom: 15px; font-weight: 600; color: var(--red); }
.body-text { font-size: 1.1rem; color: var(--grey); line-height: 1.8; }
.text-dark { color: #333 !important; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 15px 35px;
    font-family: var(--font-body);
    font-weight: 700;
    text-transform: uppercase;
    text-decoration: none;
    letter-spacing: 1px;
    border-radius: 4px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}
.btn-primary { background-color: var(--red); color: var(--white); }
.btn-primary:hover { background-color: var(--red-hover); transform: translateY(-3px); box-shadow: 0 5px 15px rgba(200, 16, 46, 0.4); }
.btn-large { padding: 20px 40px; font-size: 1.2rem; }

/* Navbar */
.navbar {
    background-color: rgba(15, 15, 15, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
    padding: 20px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 100;
}
.nav-content { display: flex; justify-content: space-between; align-items: center; }
.logo { font-family: var(--font-heading); font-size: 1.8rem; font-weight: 800; letter-spacing: 2px; }
.nav-links { display: flex; gap: 30px; align-items: center; }
.nav-links a { text-decoration: none; color: var(--cream); font-weight: 500; transition: color 0.2s; font-size: 0.95rem; text-transform: uppercase; letter-spacing: 1px;}
.nav-links a:hover { color: var(--red); }
.btn-nav { border: 1px solid var(--red); padding: 8px 20px !important; border-radius: 4px; color: var(--red) !important; }
.btn-nav:hover { background-color: var(--red); color: var(--white) !important; }

/* Sections */
.section { padding: 80px 0; }
@media (min-width: 768px) { .section { padding: 120px 0; } }

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 80px; /* Offset for navbar */
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-image: url('https://images.unsplash.com/photo-1557872943-16a5ac26437e?ixlib=rb-4.0.3&auto=format&fit=crop&w=1200&q=80');
    background-size: cover;
    background-position: center;
    z-index: -2;
}
.hero-bg::after {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to bottom, rgba(15,15,15,0.5) 0%, rgba(15,15,15,1) 100%);
    z-index: -1;
}
.hero-content { position: relative; z-index: 1; }

/* Grids */
.grid-2 { display: grid; grid-template-columns: 1fr; gap: 40px; }
.grid-3 { display: grid; grid-template-columns: 1fr; gap: 30px; }
@media (min-width: 768px) {
    .grid-2 { grid-template-columns: 1fr 1fr; }
    .grid-3 { grid-template-columns: repeat(3, 1fr); }
    .pl-md { padding-left: 40px; }
}

/* Benefit Cards */
.card {
    background-color: var(--white);
    padding: 40px 30px;
    border-radius: 8px;
    border-bottom: 4px solid var(--red);
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
    transition: transform 0.3s;
}
.card:hover { transform: translateY(-5px); }

/* Promo Box */
.promo-box {
    border: 2px dashed var(--red);
    padding: 25px;
    border-radius: 8px;
    background-color: rgba(200, 16, 46, 0.05);
}

/* Carousel Testimonial */
.carousel-container { position: relative; display: flex; align-items: center; }
.carousel-btn {
    background-color: var(--red); color: var(--white);
    border: none; width: 45px; height: 45px; border-radius: 50%;
    cursor: pointer; font-size: 1.2rem; display: flex; align-items: center; justify-content: center;
    position: absolute; z-index: 10; transition: background-color 0.2s;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
}
.carousel-btn:hover { background-color: var(--red-hover); }
.prev-btn { left: -15px; } .next-btn { right: -15px; }

.slider-wrapper {
    width: 100%; overflow-x: auto; scroll-behavior: smooth;
    -ms-overflow-style: none; scrollbar-width: none; scroll-snap-type: x mandatory; padding: 10px 0;
}
.slider-wrapper::-webkit-scrollbar { display: none; }
.slider-track { display: flex; gap: 20px; }
.testi-item {
    scroll-snap-align: start; min-width: 100%; flex-shrink: 0;
    background-color: var(--black); padding: 40px; border-radius: 8px; border: 1px solid #333;
}
@media (min-width: 768px) {
    .testi-item { min-width: calc(33.333% - 14px); }
}
@media (max-width: 767px) {
    .prev-btn { left: -5px; width: 35px; height: 35px; font-size: 1rem; }
    .next-btn { right: -5px; width: 35px; height: 35px; font-size: 1rem; }
}

.stars { font-size: 1.5rem; margin-bottom: 15px; letter-spacing: 2px; }
.review-text { font-size: 1.1rem; font-weight: 500; font-style: italic; margin-bottom: 20px; color: var(--cream); }
.reviewer { color: var(--grey); font-weight: 700; text-transform: uppercase; font-size: 0.9rem; letter-spacing: 1px; }

/* Footer */
.footer { border-top: 1px solid #222; }
.footer h3 { font-size: 1.3rem; margin-bottom: 15px; letter-spacing: 1px;}
.copyright { margin-top: 30px; font-size: 0.9rem; border-top: 1px solid #222; padding-top: 20px; }

/* Reveal Animations */
.reveal { opacity: 0; transform: translateY(50px); transition: opacity 1s ease-out, transform 1s cubic-bezier(0.19, 1, 0.22, 1); }
.reveal.active { opacity: 1; transform: translateY(0); }

/* Mobile Optimizations */
@media (max-width: 767px) {
    .nav-content { flex-direction: column; gap: 15px; padding-bottom: 5px;}
    .nav-links { display: flex; gap: 15px; width: 100%; justify-content: center; }
    .btn { width: 100%; text-align: center; }
    .section { padding: 60px 0; }
    .hero { height: auto; padding-top: 150px; padding-bottom: 80px;}
}