/* =========================================
   Root Variables (ชุดสีธีมของเว็บไซต์)
========================================= */
:root {
    --bg-color: #0a1410;
    --card-bg: #121e18;
    --input-bg: #1a2b22;
    --primary-color: #10b981;
    --text-muted: #a0aec0;
}

/* =========================================
   🌌 Background ทั้งหน้า (Gradient + Glow)
========================================= */
body {
    font-family: 'Kanit', sans-serif;
    background:
        radial-gradient(circle at 50% 40%, rgba(16, 185, 129, 0.08), transparent 60%),
        radial-gradient(circle at 80% 10%, rgba(16, 185, 129, 0.05), transparent 50%),
        linear-gradient(to bottom, #08120e, var(--bg-color));
}

/* =========================================
   Page Header (Gradient สวยขึ้น)
========================================= */
.page-header { 
    padding: 120px 20px 60px; 
    text-align: center; 

    background:
        linear-gradient(to bottom, rgba(16, 185, 129, 0.25), transparent 70%),
        linear-gradient(to bottom, transparent, var(--bg-color));
}
.page-header h1 { 
    font-size: 45px; 
    margin-bottom: 10px; 
    text-transform: uppercase; 
    font-weight: 300; 
    letter-spacing: 2px; 
    color: #ffffff;
}
.page-header h1 span { 
    color: var(--primary-color); 
    font-weight: bold; 
    text-shadow: 0 0 15px rgba(16, 185, 129, 0.4);
}
.page-header p { 
    color: var(--text-muted); 
    font-size: 18px; 
    font-weight: 300; 
}

/* =========================================
   Contact Container & Info
========================================= */
.contact-container { 
    max-width: 1200px; 
    margin: 0 auto; 
    padding: 40px 20px 80px; 
    display: grid; 
    grid-template-columns: 1fr 1.2fr; 
    gap: 50px; 
    align-items: center;
}
.contact-info h2 { 
    font-size: 30px; 
    margin-bottom: 20px; 
    font-weight: 300; 
    color: #ffffff;
}
.contact-info p { 
    color: var(--text-muted); 
    line-height: 1.6; 
    margin-bottom: 30px; 
}
.info-box { 
    display: block; 
    align-items: flex-start; 
    margin-bottom: 25px; 
    background: var(--card-bg); 
    padding: 20px; 
    border-radius: 0; 
    border-left: 4px solid var(--primary-color);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2); 
    transition: 0.3s; 
}
.info-box:hover { 
    transform: translateX(10px); 
    background: rgba(16, 185, 129, 0.05);
    border-left-color: #34d399;
}
.info-icon { 
    font-size: 24px; 
    color: var(--primary-color); 
    margin-right: 20px; 
    min-width: 30px; 
}
.info-text h4 { 
    margin-bottom: 5px; 
    font-size: 18px; 
    font-weight: 500; 
    color: #ffffff;
}
.info-text p { 
    margin-bottom: 0; 
    font-size: 15px; 
}

/* =========================================
   Contact Video
========================================= */
.contact-video { 
    display: block;
    align-items: center;
    justify-content: center;
    background: var(--card-bg); 
    padding: 0; 
    border-radius: 15px; 
    border: 2px solid rgba(16, 185, 129, 0.3); 
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3); 
    overflow: hidden;
    width: 100%;
    height: 450px;
}
.contact-video video,
.contact-video iframe {
    display: block;
    width: 100%;
    height: 100%;
    border: 0;
    border-radius: 0;
}

/* =========================================
   Contact Form
========================================= */
.contact-form { 
    background: var(--card-bg); 
    padding: 40px; 
    border-radius: 15px; 
    border: 1px solid rgba(16, 185, 129, 0.2); 
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}
.contact-form h3 { 
    margin-bottom: 25px; 
    font-size: 24px; 
    font-weight: 300; 
    color: #ffffff;
}
.form-group { 
    margin-bottom: 20px; 
}
.form-group label { 
    display: block; 
    margin-bottom: 8px; 
    color: var(--text-muted); 
    font-size: 14px; 
}
.form-control { 
    width: 100%; 
    padding: 15px; 
    background: var(--input-bg); 
    border: 1px solid rgba(16, 185, 129, 0.3); 
    border-radius: 8px; 
    color: #fff; 
    font-size: 16px; 
    outline: none; 
    transition: 0.3s; 
}
.form-control:focus { 
    border-color: var(--primary-color); 
    background: rgba(16, 185, 129, 0.05); 
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.2);
}
textarea.form-control { 
    resize: vertical; 
    min-height: 120px; 
}
.submit-btn { 
    background: var(--primary-color);
    color: #ffffff; 
    border: none; 
    padding: 15px 30px; 
    font-size: 16px; 
    font-weight: bold;
    border-radius: 8px; 
    cursor: pointer; 
    transition: 0.3s; 
    width: 100%; 
    text-transform: uppercase; 
    letter-spacing: 2px; 
}
.submit-btn:hover { 
    background: #059669;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(16, 185, 129, 0.4);
}

/* =========================================
   Map Section
========================================= */
.map-section { 
    width: 100%; 
    height: 400px; 
    background: var(--bg-color); 
    border-top: 2px solid var(--primary-color);
}
.map-section iframe { 
    width: 100%; 
    height: 100%; 
    border: none; 
    filter: brightness(90%) contrast(110%); 
}

/* =========================================
   Responsive 
========================================= */
@media (max-width: 900px) { 
    .contact-container { 
        grid-template-columns: 1fr; 
    } 
    .contact-form { 
        padding: 30px 20px; 
    } 
}

/* Skeleton Loading */
body.is-loading {
    overflow: hidden;
}

body.is-loading > *:not(.skeleton-loader) {
    visibility: hidden;
}

body.page-ready > *:not(.skeleton-loader) {
    visibility: visible;
}

.skeleton-loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    background: #0f1417;
    transition: opacity 0.35s ease;
}

body.is-loading .skeleton-loader {
    opacity: 1;
    pointer-events: auto;
}

body.page-ready .skeleton-loader {
    opacity: 0;
}

.sk-topbar,
.sk-thumb,
.sk-line,
.sk-tags,
.sk-dot {
    position: relative;
    overflow: hidden;
    background: #1c2429;
    border-radius: 0;
}

.sk-shimmer::after {
    content: "";
    position: absolute;
    inset: 0;
    transform: translateX(-100%);
    background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.18) 50%, rgba(255,255,255,0) 100%);
    animation: skeleton-shimmer 1.25s infinite;
}

.sk-wrap,
.sk-canvas {
    width: min(1200px, 94vw);
    margin: 92px auto 0;
}

.sk-wrap {
    display: grid;
    gap: 20px;
}

.sk-topbar {
    height: 76px;
    border-radius: 0;
}

.sk-line {
    height: 14px;
    margin-bottom: 10px;
}

.sk-title {
    height: 42px;
    width: min(520px, 72%);
}

.sk-mid {
    width: 76%;
}

.sk-short {
    width: 58%;
}

.sk-thumb {
    width: 100%;
    aspect-ratio: 4 / 3;
}

.sk-panel {
    background: #151d21;
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 12px;
    padding: 16px;
}

.sk-product-head,
.sk-product-grid,
.sk-about-hero,
.sk-about-main,
.sk-about-values-head,
.sk-about-values-grid,
.sk-section,
.sk-hero,
.sk-grid,
.sk-split,
.sk-map {
    display: none;
}

/* Product skeleton: portfolio header + gallery cards */
body.skeleton-product .sk-product-head,
body.skeleton-product .sk-product-grid {
    display: grid;
}

body.skeleton-product .sk-product-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.sk-pcard {
    background: #151d21;
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 12px;
    padding: 12px;
}

.sk-pcard .sk-thumb {
    margin-bottom: 10px;
}

.sk-tags {
    height: 28px;
    width: 46%;
    border-radius: 999px;
    margin-top: 8px;
}

/* About skeleton: hero + split content + values cards */
body.skeleton-about .sk-about-hero,
body.skeleton-about .sk-about-main,
body.skeleton-about .sk-about-values-head,
body.skeleton-about .sk-about-values-grid {
    display: grid;
}

body.skeleton-about .sk-about-main {
    grid-template-columns: 1.15fr 1fr;
    gap: 16px;
}

.sk-portrait {
    aspect-ratio: 4 / 5;
}

body.skeleton-about .sk-about-values-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

.sk-vcard {
    background: #151d21;
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 12px;
    padding: 14px;
}

.sk-dot {
    width: 34px;
    height: 34px;
    border-radius: 999px;
    margin-bottom: 12px;
}

/* Keep existing fallback template (home/contact currently uses sk-section) */
body.skeleton-home .sk-hero,
body.skeleton-home .sk-grid,
body.skeleton-contact .sk-hero,
body.skeleton-contact .sk-split,
body.skeleton-contact .sk-map {
    display: grid;
}

body.skeleton-home .sk-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
}

body.skeleton-home .sk-card:nth-child(n+4) {
    display: none;
}

body.skeleton-contact .sk-split {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.sk-mapbox {
    aspect-ratio: 16 / 5;
}

@keyframes skeleton-shimmer {
    to { transform: translateX(100%); }
}

@media (max-width: 1024px) {
    body.skeleton-product .sk-product-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 900px) {
    .sk-wrap,
    .sk-canvas {
        margin-top: 84px;
        gap: 14px;
    }

    .sk-title {
        height: 34px;
        width: 84%;
    }

    .sk-line {
        height: 12px;
    }

    body.skeleton-product .sk-product-grid,
    body.skeleton-about .sk-about-values-grid,
    body.skeleton-home .sk-grid {
        grid-template-columns: 1fr !important;
    }

    body.skeleton-about .sk-about-main,
    body.skeleton-contact .sk-split {
        grid-template-columns: 1fr !important;
    }

    .sk-pcard:nth-child(n+5) {
        display: none;
    }

    .sk-mapbox {
        aspect-ratio: 16 / 7;
    }
}