/* =======================
   RESET & TYPOGRAPHY
======================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 14px;
}

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Helvetica, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f6fa;
    transition: background-color 0.3s, color 0.3s;
}

/* Links */
a, a:visited {
    text-decoration: none;
    color: #0073e6;
    transition: color 0.3s;
}
a:hover {
    color: #005bb5;
}

/* =======================
   CONTAINER & LAYOUT
======================= */
#container, #pdp-nav {
    background: #f5f6fa;
}
#container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px;
}

.pdp-block__main-information {
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 6px 18px rgba(0,0,0,0.08);
    margin-bottom: 24px;
}

/* Grid Layout */
.pdp-block__gallery,
.pdp-block__main-information-detail {
    display: inline-block;
    vertical-align: top;
}

.pdp-block__gallery {
    width: 338px;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 6px 18px rgba(0,0,0,0.05);
    transition: transform 0.3s, box-shadow 0.3s;
}
.pdp-block__gallery img:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.pdp-block__main-information-detail {
    width: calc(100% - 338px);
    padding-left: 20px;
}

.pdp-block__product-detail {
    display: inline-block;
    width: calc(100% - 330px);
    padding: 0 20px;
}

/* =======================
   CARDS & SECTIONS
======================= */
.background-1 { background-color: #f0f2f5; }
.background-2 { background-color: #fff; }

.block-padding-bottom { padding-bottom: 16px; }
.block-margin-top { margin-top: 16px; }
.block-margin-bottom { margin-bottom: 16px; }

.pdp-block__add-on-service, 
.pdp-block__combo, 
.pdp-block__multisource {
    margin-top: 16px;
}

/* =======================
   BUTTONS & HOVER EFFECTS
======================= */
button, .btn {
    padding: 12px 28px;
    border-radius: 10px;
    border: none;
    cursor: pointer;
    background: #0073e6;
    color: #fff;
    font-weight: 500;
    transition: all 0.3s ease;
}
button:hover, .btn:hover {
    background: #005bb5;
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(0,0,0,0.12);
}

/* =======================
   RESPONSIVE GRID
======================= */
@media screen and (max-width: 1200px) {
    .pdp-block__gallery,
    .pdp-block__main-information-detail,
    .pdp-block__product-detail {
        display: block;
        width: 100%;
        padding-left: 0;
    }
    .pdp-block__main-information-detail {
        margin-top: 16px;
    }
}

/* =======================
   SKELETON LOADING
======================= */
.pdp-skeleton {
    width: 100%;
    height: 100vh;
    background-color: #f0f2f5;
    position: absolute;
    left: 0;
    transition: opacity 0.6s linear;
}

.loading-skeleton {
    animation: skeleton-animation 1.2s ease-in-out infinite;
    background: linear-gradient(90deg, #eee, #f5f5f5, #eee);
    background-size: 200px 100%;
}

@keyframes skeleton-animation {
    0% { background-position: -200px 0; }
    100% { background-position: calc(200px + 100%) 0; }
}

/* =======================
   DARK MODE SUPPORT
======================= */
body.dark-mode {
    background-color: #121212;
    color: #e0e0e0;
}
body.dark-mode .pdp-block__main-information,
body.dark-mode .pdp-block__gallery {
    background-color: #1e1e1e;
    box-shadow: 0 6px 18px rgba(0,0,0,0.5);
}
body.dark-mode a {
    color: #1e90ff;
}
body.dark-mode a:hover {
    color: #63b3ed;
}
body.dark-mode button, body.dark-mode .btn {
    background: #1e90ff;
    color: #fff;
}
body.dark-mode button:hover, body.dark-mode .btn:hover {
    background: #63b3ed;
}