/*
 * CSS styles for GS Flooring website
 */

@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@400;700;900&display=swap');

body {
    background-color: black;
    color: yellow;
    font-family: 'Oswald', 'Arial Black', Arial, sans-serif;
    margin: 0;
    padding: 0;
}

header {
    background-color: transparent;
    padding: 20px;
    text-align: center;
    position: sticky;
    top: 0;
    z-index: 50;
    transition: all 0.3s ease, transform 0.4s ease;
    transform: translateY(0);
}

header.scrolled {
    box-shadow: 0 4px 8px rgba(255, 255, 0, 0.2);
    padding: 10px 20px;
}

/* Shimmer animation for header */
@keyframes shimmer {
    0% {
        background: linear-gradient(90deg, transparent, transparent, rgba(255, 255, 0, 0.3), transparent, transparent);
        background-position: -1000px 0;
    }
    50% {
        background: linear-gradient(90deg, transparent, rgba(255, 255, 0, 0.5), rgba(255, 255, 0, 0.8), rgba(255, 255, 0, 0.5), transparent);
        background-position: 1000px 0;
    }
    100% {
        background: linear-gradient(90deg, transparent, transparent, rgba(255, 255, 0, 0.3), transparent, transparent);
        background-position: -1000px 0;
    }
}

header h1 {
    margin: 0;
    font-size: 3em;
    font-weight: 900;
    letter-spacing: 2px;
    color: yellow;
    background-color: rgba(0, 0, 0, 0.4);
    padding: 15px 25px;
    display: inline-block;
    border-radius: 8px;
}

nav {
    transition: all 0.3s ease;
    position: relative;
    z-index: 51;
}

nav ul {
    list-style-type: none;
    padding: 0;
    margin: 10px 0 0 0;
}

nav ul li {
    display: inline;
    margin: 0 15px;
}

nav ul li a {
    color: yellow;
    text-decoration: none;
    padding: 8px 15px;
    display: inline-block;
    border-radius: 4px;
    transition: all 0.3s ease;
    font-weight: bold;
    font-size: 1.1em;
}

nav ul li a:hover {
    background-color: yellow;
    color: black;
    transform: scale(1.05);
}

nav ul li a.active {
    background-color: yellow;
    color: black;
    font-weight: bold;
}

/* Hero Section Styles */
.hero {
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(255, 255, 0, 0.1));
    padding: 100px 20px;
    text-align: center;
    background-size: cover;
    background-position: center;
    position: relative;
    z-index: 10;
}

.hero h2 {
    font-size: 3em;
    margin: 0;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
    font-weight: 900;
    letter-spacing: 1px;
    color: yellow;
    background-color: rgba(0, 0, 0, 0.5);
    padding: 20px 30px;
    display: inline-block;
    border-radius: 8px;
}

.hero p {
    font-size: 1.2em;
    margin-top: 10px;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.7);
    font-weight: bold;
}

/* Main Content Styles */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
    position: relative;
    z-index: 10;
}

main h2 {
    font-weight: 900;
    font-size: 2.5em;
    letter-spacing: 1px;
    background-color: rgba(0, 0, 0, 0.4);
    padding: 15px 20px;
    display: inline-block;
    border-radius: 8px;
}

main h3 {
    font-weight: 900;
    font-size: 1.8em;
    letter-spacing: 0.5px;
    background-color: rgba(0, 0, 0, 0.3);
    padding: 10px 15px;
    display: inline-block;
    border-radius: 6px;
}

main p {
    font-size: 1.1em;
    font-weight: bold;
}

/* Animated Gradient Keyframes */
@keyframes gradientShift1 {
    0% {
        background: linear-gradient(135deg, rgba(255, 255, 0, 0.15) 0%, rgba(255, 255, 0, 0.05) 100%);
    }
    50% {
        background: linear-gradient(45deg, rgba(255, 255, 0, 0.25) 0%, rgba(255, 255, 0, 0.1) 100%);
    }
    100% {
        background: linear-gradient(135deg, rgba(255, 255, 0, 0.15) 0%, rgba(255, 255, 0, 0.05) 100%);
    }
}

@keyframes gradientShift2 {
    0% {
        background: linear-gradient(45deg, rgba(255, 255, 0, 0.2) 0%, rgba(255, 255, 0, 0.08) 100%);
    }
    50% {
        background: linear-gradient(135deg, rgba(255, 255, 0, 0.3) 0%, rgba(255, 255, 0, 0.12) 100%);
    }
    100% {
        background: linear-gradient(45deg, rgba(255, 255, 0, 0.2) 0%, rgba(255, 255, 0, 0.08) 100%);
    }
}

@keyframes gradientShift3 {
    0% {
        background: linear-gradient(225deg, rgba(255, 255, 0, 0.18) 0%, rgba(255, 255, 0, 0.06) 100%);
    }
    50% {
        background: linear-gradient(90deg, rgba(255, 255, 0, 0.28) 0%, rgba(255, 255, 0, 0.1) 100%);
    }
    100% {
        background: linear-gradient(225deg, rgba(255, 255, 0, 0.18) 0%, rgba(255, 255, 0, 0.06) 100%);
    }
}

/* Product Grid Styles */
.products {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin: 40px 0;
    position: relative;
    z-index: 10;
}

.product-card {
    border: 3px solid yellow;
    border-radius: 12px;
    padding: 25px;
    text-align: center;
    transition: all 0.4s ease;
    backdrop-filter: blur(5px);
    position: relative;
    overflow: hidden;
    z-index: 10;
}

/* Stagger animations for each card */
.product-card:nth-child(1) {
    animation: gradientShift1 6s ease-in-out infinite;
}

.product-card:nth-child(2) {
    animation: gradientShift2 6s ease-in-out infinite 0.5s;
}

.product-card:nth-child(3) {
    animation: gradientShift3 6s ease-in-out infinite 1s;
}

.product-card:nth-child(4) {
    animation: gradientShift1 6s ease-in-out infinite 1.5s;
}

.product-card:nth-child(5) {
    animation: gradientShift2 6s ease-in-out infinite 2s;
}

.product-card:nth-child(6) {
    animation: gradientShift3 6s ease-in-out infinite 2.5s;
}

.product-card:hover {
    transform: translateY(-12px) scale(1.05);
    box-shadow: 0 12px 24px rgba(255, 255, 0, 0.4);
    border-color: #ffff00;
}

.product-card h3 {
    color: yellow;
    font-size: 1.8em;
    margin: 0 0 15px 0;
    font-weight: 900;
    letter-spacing: 1px;
}

.product-card p {
    color: yellow;
    font-size: 1em;
    font-weight: 600;
    line-height: 1.5;
}

/* Particle Canvas Styles */
#particleCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: transparent;
    z-index: 1;
    opacity: 0.3;
    pointer-events: none;
}

/* Footer Styles */
footer {
    background-color: transparent;
    padding: 20px;
    text-align: center;
    margin-top: 40px;
    border-top: 3px solid yellow;
    font-weight: bold;
    position: relative;
    z-index: 10;
}