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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #0b0b0b;
    background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 50%, #ffffff 100%);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

/* Typographic hierarchy */
h1, h2, h3 { 
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* Override hero title to solid black (disable gradient clip) */
.hero h1 {
    font-weight: 900;
    letter-spacing: -0.03em;
    background: none;
    -webkit-background-clip: initial;
    -webkit-text-fill-color: initial;
    background-clip: initial;
    color: #0b0b0b;
    text-shadow: 0 1px 0 rgba(255,255,255,0.7);
}

.section-title {
    font-weight: 800;
    letter-spacing: -0.02em;
}

.feature-card h3 {
    font-weight: 700;
    letter-spacing: -0.01em;
}

.hero p, .feature-card p, .product-info p, .footer-section p {
    color: #444444;
}

/* Global black text with subtle white shade */
h1, h2, h3,
.hero p, .feature-card p, .product-info p, .footer-section p,
.nav-menu a {
    color: #0b0b0b;
    text-shadow: 0 1px 0 rgba(255,255,255,0.65);
}

/* Nav link hover/focus with white highlight retained */
.nav-menu a:hover {
    color: #0a0a0a;
    text-shadow: 0 1px 0 rgba(255,255,255,0.75), 0 0 3px rgba(0,0,0,0.15);
}

.nav-menu a {
    letter-spacing: 0.02em;
}

/* Product price: solid black with white shade, remove gradient text */
.product-price {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    color: #0b0b0b;
    text-shadow: 0 1px 0 rgba(255,255,255,0.7);
    background: none;
    -webkit-background-clip: initial;
    -webkit-text-fill-color: initial;
    background-clip: initial;
    font-variant-numeric: tabular-nums;
}

/* Diamond Background Pattern with enhanced sparkle */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 25% 25%, rgba(0,0,0,0.05) 1px, transparent 1px),
        radial-gradient(circle at 75% 75%, rgba(0,0,0,0.03) 1px, transparent 1px);
    background-size: 50px 50px, 80px 80px;
    z-index: -1;
    animation: sparkle 12s linear infinite;
}

@keyframes sparkle {
    0%, 100% { opacity: 0.9; }
    50% { opacity: 0.6; }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Enhanced Diamond Shape with subtle glow */
.diamond {
    width: 20px;
    height: 20px;
    background: linear-gradient(45deg, #e0e0e0, #ffffff);
    transform: rotate(45deg);
    display: inline-block;
    position: relative;
    filter: drop-shadow(0 0 3px rgba(255,255,255,0.5));
}

.diamond::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
    width: 70%;
    height: 70%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.9), transparent);
    border-radius: 2px;
}

/* Header with refined transparency and hover */
header {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
}

.logo {
    font-size: 2rem;
    font-weight: 700;
    color: #000000;
    text-shadow: 0 0 4px rgba(255,255,255,0.4);
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    transition: color 0.3s ease, text-shadow 0.3s ease;
}

/* Brand image decoration */
.logo img {
    height: 72px;
    width: auto;
    border-radius: 12px;
    padding: 4px;
    background: linear-gradient(135deg, rgba(255,255,255,0.95), rgba(255,255,255,0.7));
    border: 1px solid rgba(0,0,0,0.08);
    box-shadow: 0 6px 18px rgba(0,0,0,0.08), inset 0 1px 0 rgba(255,255,255,0.8);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.logo:hover img {
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 10px 28px rgba(0,0,0,0.12), inset 0 1px 0 rgba(255,255,255,0.9);
}

.diamond-emoji {
    filter: brightness(0) saturate(100%) invert(1); /* ทำให้ขาวชัด */
    /* ถ้าต้องการขาวอ่อนๆ: filter: brightness(0) invert(1) opacity(0.8); */
}

/* ใช้กับ logo */
.logo::before {
    content: '💎';
    font-size: 2.2rem;
    animation: rotate 8s linear infinite;
    filter: drop-shadow(0 0 6px rgba(255,255,255,0.7)) brightness(0) saturate(100%) invert(1); /* รวม filter ขาว */
    transition: filter 0.3s ease;
}

/* Mobile nav toggle */
.nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border: 1px solid rgba(0,0,0,0.1);
    border-radius: 12px;
    background: rgba(255,255,255,0.9);
    box-shadow: 0 4px 12px rgba(0,0,0,0.06), inset 0 1px 0 rgba(255,255,255,0.7);
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.nav-toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1), inset 0 1px 0 rgba(255,255,255,0.8);
}

.nav-toggle:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(0,0,0,0.1), inset 0 1px 0 rgba(255,255,255,0.8);
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
    display: block;
    width: 20px;
    height: 2px;
    background: #222222;
    border-radius: 2px;
    position: relative;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle span::before,
.nav-toggle span::after {
    content: '';
    position: absolute;
    left: 0;
}

.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }

/* When expanded, morph to X */
.nav-toggle[aria-expanded="true"] span { transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::before { transform: rotate(90deg) translateX(-6px); }
.nav-toggle[aria-expanded="true"] span::after { opacity: 0; }

.logo:hover {
    color: #222222;
    text-shadow: 0 0 8px rgba(255,255,255,0.6);
}

.logo:hover::before {
    filter: drop-shadow(0 0 12px rgba(255,255,255,0.9));
    animation-duration: 4s;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
    align-items: center;
}

/* Desktop capsule background for menu */
@media (min-width: 993px) {
    .nav-menu {
        gap: 0.5rem;
        padding: 6px;
        background: rgba(255,255,255,0.7);
        border: 1px solid rgba(0,0,0,0.06);
        border-radius: 999px;
        box-shadow: 0 8px 24px rgba(0,0,0,0.06), inset 0 1px 0 rgba(255,255,255,0.8);
        backdrop-filter: blur(8px);
    }

    .nav-menu li { margin: 0 6px; }
}

/* Decorative icons for links */
.nav-menu a::before {
    content: '';
    display: inline-block;
    font-size: 1.1rem;
    line-height: 1;
    margin-right: 8px;
    filter: drop-shadow(0 0 2px rgba(0,0,0,0.1));
}

.nav-menu a[href*="#home"]::before { content: '🏠'; }
.nav-menu a[href*="#products"]::before { content: '🛒'; }
.nav-menu a[href*="#contact"]::before { content: '✉️'; }
/* Ensure icons also appear for page links */
.nav-menu a[href$="home.html"]::before { content: '🏠'; }
.nav-menu a[href$="content.html"]::before { content: '🛒'; }
.nav-menu a[href$="contact.html"]::before { content: '✉️'; }

/* Enhanced active state */
.nav-menu a.active {
    color: #111111;
    background: linear-gradient(135deg, rgba(0,0,0,0.06), rgba(0,0,0,0.03));
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.10), inset 0 1px 0 rgba(255,255,255,0.8);
}

.nav-menu a.active::after {
    width: calc(100% - 24px);
}

.nav-menu li {
    position: relative;
}

.nav-menu a {
    text-decoration: none;
    color: #333333;
    font-weight: 600;
    position: relative;
    transition: color 0.25s ease, text-shadow 0.25s ease, transform 0.25s ease, background-color 0.25s ease, box-shadow 0.25s ease;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    letter-spacing: 0.02em;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 14px;
    background: transparent;
}

.nav-menu a:hover {
    color: #222222;
    text-shadow: 0 0 3px rgba(0,0,0,0.2);
    background: rgba(0, 0, 0, 0.04);
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08), inset 0 1px 0 rgba(255,255,255,0.6);
}

.nav-menu a:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(0,0,0,0.1), inset 0 1px 0 rgba(255,255,255,0.7);
    background: rgba(0,0,0,0.05);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 3px;
    bottom: -6px;
    left: 12px;
    right: 12px;
    background: linear-gradient(90deg, #d9d9d9, #ffffff);
    transition: width 0.35s ease;
    border-radius: 2px;
}

.nav-menu a:hover::after {
    width: calc(100% - 24px);
}

/* Hero Section with smoother animations */
.hero {
    background: linear-gradient(rgba(255,255,255,0.8), rgba(255,255,255,0.6)), 
                radial-gradient(ellipse at center, #f5f5f5 0%, #ffffff 100%);
    height: 100vh;
    display: flex;
    align-items: center;
    color: #000000;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(0,0,0,0.1) 2px, transparent 2px),
        radial-gradient(circle at 60% 80%, rgba(0,0,0,0.08) 1px, transparent 1px),
        radial-gradient(circle at 80% 40%, rgba(0,0,0,0.06) 3px, transparent 3px);
    background-size: 120px 120px, 160px 160px, 90px 90px;
    animation: diamond-float 18s ease-in-out infinite;
}

@keyframes diamond-float {
    0%, 100% { transform: translateX(0) translateY(0); }
    33% { transform: translateX(25px) translateY(-15px); }
    66% { transform: translateX(-15px) translateY(20px); }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    animation: fadeInUp 1.2s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(60px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.2);
    background: 
        linear-gradient(-45deg, transparent 35%, rgba(255,255,255,0.9) 50%, transparent 65%) right/300% 100%,
        linear-gradient(45deg, #e0e0e0, #ffffff, #e0e0e0);
    background-size: 300% 300%, 300% 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: diamond-shine 5s linear infinite;
    position: relative;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    transform: translateZ(0);
    backface-visibility: hidden;
}

@keyframes diamond-shine {
    0%, 100% { background-position: 0% 50%, 0% 50%; }
    50% { background-position: 100% 50%, 100% 50%; }
}

.hero p {
    font-size: 1.4rem;
    margin-bottom: 2.5rem;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.1);
}

.cta-button {
    display: inline-block;
    background: linear-gradient(45deg, #222222, #444444, #222222);
    background-size: 300% 300%;
    color: #ffffff;
    padding: 18px 45px;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.2rem;
    transition: all 0.4s ease;
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.4), inset 0 2px 0 rgba(255,255,255,0.7), inset 0 -2px 0 rgba(0,0,0,0.2);
    position: relative;
    overflow: hidden;
    animation: button-shine 2.5s linear infinite;
}

@keyframes button-shine {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
    transition: left 0.6s ease;
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button:hover {
    transform: translateY(-4px);
    box-shadow: 0 15px 40px rgba(255, 255, 255, 0.5), inset 0 3px 0 rgba(255,255,255,0.9), inset 0 -2px 0 rgba(0,0,0,0.3);
}

/* Features Section with lighter theme */
.features {
    padding: 120px 0;
    background: linear-gradient(135deg, #f5f5f5 0%, #ffffff 50%, #f5f5f5 100%);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 40%, rgba(0,0,0,0.03) 2px, transparent 2px),
        radial-gradient(circle at 70% 70%, rgba(0,0,0,0.02) 1px, transparent 1px);
    background-size: 130px 130px, 90px 90px;
}

.section-title {
    text-align: center;
    font-size: 2.8rem;
    margin-bottom: 3.5rem;
    color: #222222;
    position: relative;
    text-shadow: 1px 1px 3px rgba(0,0,0,0.1);
}

.section-title::before {
    content: '💎';
    display: block;
    font-size: 3.2rem;
    margin-bottom: 1rem;
    animation: pulse-diamond 2.5s infinite;
    filter: brightness(0) saturate(100%) invert(1); /* เพิ่ม filter ขาว */
}

@keyframes pulse-diamond {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); }
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 5px;
    background: linear-gradient(45deg, #e0e0e0, #ffffff, #e0e0e0);
    border-radius: 3px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-top: 4.5rem;
    position: relative;
    z-index: 2;
}

.feature-card {
    background: linear-gradient(135deg, rgba(0,0,0,0.05) 0%, rgba(0,0,0,0.02) 100%);
    padding: 2.5rem;
    border-radius: 25px;
    text-align: center;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1), inset 0 2px 0 rgba(255,255,255,0.2), inset 0 -2px 0 rgba(0,0,0,0.1);
    transition: all 0.4s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(8px);
}

.feature-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15), inset 0 3px 0 rgba(255,255,255,0.3), inset 0 -2px 0 rgba(0,0,0,0.15);
    background: linear-gradient(135deg, rgba(0,0,0,0.08) 0%, rgba(0,0,0,0.04) 100%);
}

.feature-icon {
    font-size: 3.2rem;
    margin-bottom: 1.2rem;
    filter: drop-shadow(0 0 4px rgba(0,0,0,0.2));
}

.feature-card h3 {
    font-size: 1.6rem;
    margin-bottom: 1.2rem;
    color: #333333;
    text-shadow: 0 0 2px rgba(0,0,0,0.1);
}

.feature-card p {
    color: #555555;
    line-height: 1.9;
    text-shadow: 0 0 1px rgba(0,0,0,0.05);
}

/* Products Section with consistent styling */
.products {
    padding: 120px 0;
    background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 50%, #ffffff 100%);
    position: relative;
}

.products::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 25% 25%, rgba(0,0,0,0.04) 1px, transparent 1px),
        radial-gradient(circle at 75% 75%, rgba(0,0,0,0.02) 2px, transparent 2px);
    background-size: 70px 70px, 110px 110px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-top: 4.5rem;
    position: relative;
    z-index: 2;
}

.product-card {
    background: linear-gradient(135deg, rgba(0,0,0,0.05) 0%, rgba(0,0,0,0.02) 100%);
    border-radius: 25px;
    overflow: hidden;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1), inset 0 2px 0 rgba(255,255,255,0.2);
    transition: all 0.4s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(8px);
    position: relative;
}

.product-card:hover {
    transform: translateY(-12px) scale(1.03);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15), inset 0 3px 0 rgba(255,255,255,0.3);
    background: linear-gradient(135deg, rgba(0,0,0,0.08) 0%, rgba(0,0,0,0.04) 100%);
}

.product-image {
    height: 220px;
    background: linear-gradient(45deg, #444444, #2a2a2a);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    font-size: 3.2rem;
    position: relative;
    overflow: hidden;
}

.product-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 30% 30%, rgba(255,255,255,0.12) 1px, transparent 1px),
        radial-gradient(circle at 70% 70%, rgba(255,255,255,0.07) 2px, transparent 2px);
    background-size: 45px 45px, 65px 65px;
}

.product-info {
    padding: 1.8rem;
    padding-bottom: 3.2rem;
}

.product-info h3 {
    font-size: 1.4rem;
    margin-bottom: 0.6rem;
    color: #333333;
    text-shadow: 0 0 2px rgba(0,0,0,0.1);
}

.product-info p {
    color: #555555;
    font-size: 1rem;
    margin-bottom: 1.2rem;
    text-shadow: 0 0 1px rgba(0,0,0,0.05);
}

.product-price {
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: #333333;
    text-shadow: 0 0 3px rgba(0,0,0,0.1);
    background: none;
    -webkit-background-clip: text;
    -webkit-text-fill-color: initial;
    background-clip: text;
    font-variant-numeric: tabular-nums;
    position: absolute;
    left: 1.8rem;
    bottom: 1.6rem;
    margin: 0;
}

/* Footer with modern touch */
footer {
    background: linear-gradient(135deg, #f0f0f0 0%, #ffffff 100%);
    color: #333333;
    padding: 60px 0 35px;
    text-align: center;
    position: relative;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2.5rem;
    margin-bottom: 2.5rem;
    text-align: left;
    position: relative;
    z-index: 2;
}

.footer-section h3 {
    margin-bottom: 1.2rem;
    color: #222222;
    text-shadow: 0 0 2px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-section h3::before {
    content: '💎';
    font-size: 1.3rem;
    filter: brightness(0) saturate(100%) invert(1); /* เพิ่ม filter ขาว */
}

.footer-section p, .footer-section a {
    color: #555555;
    text-decoration: none;
    line-height: 1.9;
    text-shadow: 0 0 1px rgba(0,0,0,0.05);
}

.footer-section a:hover {
    color: #444444;
    text-shadow: 0 0 3px rgba(0,0,0,0.2);
}

.footer-bottom {
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    padding-top: 25px;
    text-align: center;
    color: #666666;
    text-shadow: 0 0 1px rgba(0,0,0,0.05);
}

/* Responsive with enhanced breakpoints */
@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        gap: 1.5rem;
        background: rgba(255,255,255,0.85);
        border: 1px solid rgba(0,0,0,0.06);
        border-radius: 16px;
        padding: 16px;
        backdrop-filter: blur(8px);
    }

    .nav-menu a {
        width: 100%;
        justify-content: center;
        padding: 12px 16px;
    }

    .hero h1 {
        font-size: 2.8rem;
    }

    .hero p {
        font-size: 1.2rem;
    }

    .section-title {
        font-size: 2.2rem;
    }

    .features, .products {
        padding: 80px 0;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2.2rem;
    }

    .cta-button {
        padding: 12px 30px;
        font-size: 1rem;
    }

    .features-grid, .products-grid {
        grid-template-columns: 1fr;
    }
}

/* Floating diamond with varied sizes */
.floating-diamond {
    position: absolute;
    opacity: 0.12;
    animation: float-diamond 10s ease-in-out infinite;
    font-size: 2.2rem;
    color: #ffffff; /* คงเดิม แต่เพิ่ม filter */
    filter: drop-shadow(0 0 4px rgba(255,255,255,0.4)) brightness(0) saturate(100%) invert(1);
}

.floating-diamond:nth-child(1) { 
    top: 15%; 
    left: 8%; 
    animation-delay: 0s; 
    font-size: 2.5rem;
}
.floating-diamond:nth-child(2) { 
    top: 65%; 
    right: 10%; 
    animation-delay: 4s; 
    font-size: 2rem;
}
.floating-diamond:nth-child(3) { 
    bottom: 25%; 
    left: 15%; 
    animation-delay: 7s; 
    font-size: 2.8rem;
}

@keyframes float-diamond {
    0%, 100% { transform: translateY(0px) rotate(0deg); opacity: 0.12; }
    50% { transform: translateY(-35px) rotate(180deg); opacity: 0.25; }
}

/* Mobile behavior */
@media (max-width: 992px) {
    .nav-toggle { display: inline-flex; }
    .nav-menu {
        position: absolute;
        top: 100%;
        right: 20px;
        left: 20px;
        display: none;
        flex-direction: column;
        gap: 1rem;
        padding: 16px;
        background: rgba(255,255,255,0.9);
        border: 1px solid rgba(0,0,0,0.06);
        border-radius: 16px;
        box-shadow: 0 12px 30px rgba(0,0,0,0.08);
        backdrop-filter: blur(8px);
    }
    .nav-menu.is-open { display: flex; }
}