/* ==========================================
   SYMMETRICAL COLOR THEME & VARIABLES
   ========================================== */
:root {
    --bg-light: #E9F1FA;       /* Client: Light Blue */
    --brand-blue: #00ABE4;     /* Client: Bright Blue */
    --brand-pink: #970747;     /* Client: Dark Pink */
    --btn-primary: #09ceb0;    /* Teal Highlights */
    --text-dark: #333333;
    --white: #ffffff;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-light);
    color: var(--text-dark);
    margin: 0;
    padding: 0;
}

/* Header & Navigation Symmetry */
header {
    background-color: var(--brand-blue);
    color: var(--white);
    padding: 20px 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 4px solid var(--brand-pink);
}

header a.btn-whatsapp {
    margin-top: 0;
}

/* Perfect Product Grid Sizing */
.catalog-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    padding: 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.product-card {
    background-color: var(--white);
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 4px 8px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.product-card:hover {
    transform: translateY(-5px);
    border-color: var(--brand-blue);
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

.product-card img {
    max-width: 100%;
    height: 200px;
    object-fit: contain;
    margin-bottom: 15px;
}

.product-card h3 {
    color: var(--brand-blue);
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.product-card p {
    font-size: 0.9rem;
    color: #666;
    margin-bottom: 20px;
    flex-grow: 1;
}

/* Professional WhatsApp Inquiry Button */
.btn-whatsapp {
    display: inline-block;
    background-color: var(--btn-primary);
    color: var(--white);
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
    text-transform: uppercase;
    font-size: 0.9rem;
    transition: background-color 0.3s ease;
}

.btn-whatsapp:hover {
    background-color: #08b89d;
}

/* ==========================================
   NAVIGATION BAR SYMMETRY
   ========================================== */
.main-nav {
    display: flex;
    gap: 20px;
    align-items: center;
}

.nav-btn {
    text-decoration: none;
    color: var(--white);
    font-weight: bold;
    padding: 10px 15px;
    border-radius: 4px;
    transition: background-color 0.3s ease, color 0.3s ease;
    font-size: 1rem;
}

/* Hover par #09ceb0 Teal color chamkega */
.nav-btn:hover {
    background-color: var(--btn-primary); 
    color: var(--white);
}

/* Agar header ka layout set karna ho */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap; /* Mobile screens ke liye */
}

/* ==========================================
   FOOTER XPERT SYSTEMS BRANDING SYMMETRY
   ========================================== */
footer {
    background-color: var(--brand-blue); /* Branded dark blue base */
    color: var(--white);
    text-align: center;
    padding: 25px 20px;
    margin-top: 60px;
    font-size: 0.95rem;
    border-top: 4px solid var(--brand-pink); /* Symmetrical boundary line */
    line-height: 1.6;
}

footer p {
    margin: 0;
}

footer .xpert-link {
    color: #09ceb0; /* Signature Teal Color */
    text-decoration: none;
    font-weight: bold;
    transition: color 0.2s ease;
}

footer .xpert-link:hover {
    text-decoration: underline;
    color: #08b89d;
}

.btn-cta {
    display: inline-block;
    background-color: #09ceb0;
    color: white;
    padding: 12px 25px;
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
    text-transform: uppercase;
    font-size: 0.9rem;
    transition: background-color 0.3s ease;
}

.btn-cta:hover {
    background-color: #08b89d;
}