/* =============================================
   COLOR PALETTE:
   #86B3D1  — steel blue (accents, icons, button)
   #F2D57F  — warm yellow (stars, accent bar)
   #0C0F24  — near-black (header, footer, headings)
   #F5F5F5  — page background
   ============================================= */

:root {
    --accent:  #86B3D1;
    --yellow:  #F2D57F;
    --dark:    #0C0F24;
    --bg:      #F5F5F5;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg);
    color: #2d2d2d;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Header */
.site-header {
    background-color: #ffffff;
    border-bottom: 4px solid var(--accent);
}

.header-pattern {
    background-image: radial-gradient(var(--accent) 1px, transparent 1px);
    background-size: 22px 22px;
}

.header-title  { color: var(--dark); }
.product-title { color: var(--dark); }
.accent-bar    { background-color: var(--yellow); }
.check-icon    { color: var(--accent); font-weight: 700; }

.info-note {
    background-color: #eaf2f8;
    border: 1px solid #b8d4e8;
}

/* Thumbnail hover */
.thumb-hover:hover { border-color: var(--accent) !important; }

/* Gallery — CSS only */
.gallery-img {
    display: none;
    animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

#img-1:checked ~ .main-image-container .img-1 { display: block; }
#img-2:checked ~ .main-image-container .img-2 { display: block; }
#img-3:checked ~ .main-image-container .img-3 { display: block; }
#img-4:checked ~ .main-image-container .img-4 { display: block; }

#img-1:checked ~ .thumbnails label[for="img-1"],
#img-2:checked ~ .thumbnails label[for="img-2"],
#img-3:checked ~ .thumbnails label[for="img-3"],
#img-4:checked ~ .thumbnails label[for="img-4"] {
    border-color: var(--accent) !important;
    box-shadow: 0 0 0 2px rgba(134, 179, 209, 0.3);
}

.main-image-container {
    min-height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.main-image-container img {
    max-height: 320px;
    width: 100%;
    object-fit: contain;
}

/* CTA Button */
.cta-button {
    display: inline-block;
    background: linear-gradient(135deg, var(--accent) 0%, #5a8fad 100%);
    color: #ffffff;
    font-weight: 700;
    font-size: 1.2rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 1.1rem 3.5rem;
    border-radius: 4px;
    box-shadow: 0 8px 24px -6px rgba(134, 179, 209, 0.55);
    transition: all 0.25s ease;
    text-align: center;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px -6px rgba(134, 179, 209, 0.7);
    background: linear-gradient(135deg, #5a8fad 0%, var(--dark) 100%);
}

.cta-button:active { transform: translateY(0); }

/* Reviews */
.reviews-title { border-bottom: 2px solid var(--accent); }
.stars { color: var(--yellow); }

.review-item {
    border-left: 4px solid #d0e4f0;
    transition: border-left-color 0.25s ease;
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.review-item:hover { border-left-color: var(--accent); }

/* Footer */
.site-footer    { background-color: var(--dark); }
.footer-divider { background-color: var(--accent); }
.footer-sep     { color: #2a3a5c; }
.footer-link    { color: #8aa8c0; transition: color 0.2s ease; }
.footer-link:hover { color: var(--yellow); }

/* Mobile */
@media (max-width: 768px) {
    .cta-button {
        font-size: 1rem;
        padding: 1rem 2rem;
        width: 100%;
        max-width: 360px;
    }
    .main-image-container { min-height: 220px; }
}