/* ==========================================================================
   components.css — Reusable UI Components
   KC INTERPRESS

   Scope: Topbar, Header/Nav, Buttons, Product Cards, Blog Cards,
          Footer, Floating Buttons
          ทุก component ที่ใช้ซ้ำข้ามหน้า
   ========================================================================== */

/* --------------------------------------------------------------------------
   TOPBAR
   -------------------------------------------------------------------------- */
.topbar {
    background: var(--dark-bg-mid); color: var(--gray-400);
    font-family: var(--font-en); font-size: 12px;
    letter-spacing: 0.02em; padding: 8px 0;
    border-bottom: 1px solid #2a2a2a;
}
.topbar .wrap { max-width: var(--container); margin: 0 auto; padding: 0 24px; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.topbar-left, .topbar-right { display: flex; align-items: center; gap: 20px; }
.topbar a { color: var(--gray-400); display: flex; align-items: center; gap: 6px; transition: var(--transition); }
.topbar a:hover { color: var(--orange); }
.topbar i { color: var(--orange); font-size: 11px; }

/* --------------------------------------------------------------------------
   SITE HEADER & NAV
   -------------------------------------------------------------------------- */
.site-header {
    position: sticky; top: 0; z-index: 900; height: var(--header-h);
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--gray-200);
    transition: var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow-md); border-bottom-color: transparent; }

.site-header .header-inner {
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: nowrap; gap: 20px;
    width: 100%; max-width: var(--container); margin: 0 auto;
    padding: 0 24px; height: 100%;
}
.site-header .logo-link { flex: 0 0 auto; max-width: 120px; display: flex; align-items: center; }
.site-header .logo-link img { width: 100%; height: auto; max-height: 60px; object-fit: contain; }
.logo-ph {
    height: 40px; width: 160px; background: var(--gray-100);
    border: 1.5px dashed var(--gray-400); border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-en); font-size: 10px; font-weight: 700;
    color: var(--gray-400); letter-spacing: 0.08em; text-transform: uppercase; gap: 6px;
}

.site-header nav { flex: 1 1 auto; display: flex; justify-content: center; }
.site-header .nav-links { display: flex; gap: 25px; margin: 0; padding: 0; list-style: none; }
.site-header .nav-links li a {
    white-space: nowrap; font-family: var(--font-th); font-size: 15px;
    font-weight: 400; color: var(--gray-600); padding: 6px 14px;
    border-radius: var(--radius-sm); transition: var(--transition);
}
.site-header .nav-links a:hover,
.site-header .nav-links a.active { color: var(--black); background: var(--gray-100); }
.site-header .nav-links a.active { font-weight: 500; }

.site-header .header-actions { flex: 0 0 auto; white-space: nowrap; display: flex; align-items: center; gap: 12px; }
.menu-toggle { display: none; background: none; border: none; cursor: pointer; padding: 6px; color: var(--black); font-size: 20px; }

@media (max-width: 900px) {
    .topbar { display: none; }
    .menu-toggle { display: flex; align-items: center; }
    .nav-links {
        display: none; position: absolute; top: var(--header-h); left: 0; right: 0;
        background: var(--white); flex-direction: column; padding: 12px 16px 20px;
        border-bottom: 1px solid var(--gray-200); box-shadow: var(--shadow-md); gap: 2px;
    }
    .nav-links.open { display: flex; }
    .nav-links a { width: 100%; padding: 10px 16px; }
    .header-actions .btn-cta { display: none; }
}

/* --------------------------------------------------------------------------
   BUTTONS
   -------------------------------------------------------------------------- */
.btn-cta {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--orange); color: var(--white);
    font-family: var(--font-th); font-size: 14px; font-weight: 500;
    padding: 9px 22px; border-radius: 100px;
    border: none; cursor: pointer; transition: var(--transition); white-space: nowrap;
}
.btn-cta:hover { background: var(--orange-dark); }

.btn-primary {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--orange); color: var(--white);
    font-family: var(--font-th); font-size: 15px; font-weight: 500;
    padding: 13px 26px; border-radius: var(--radius-sm);
    transition: var(--transition); border: 2px solid var(--orange);
}
.btn-primary:hover { background: var(--orange-dark); border-color: var(--orange-dark); }

.btn-outline-dark {
    display: inline-flex; align-items: center; gap: 8px;
    background: transparent; color: var(--black);
    font-family: var(--font-th); font-size: 15px; font-weight: 500;
    padding: 13px 26px; border-radius: var(--radius-sm);
    border: 2px solid var(--gray-200); transition: var(--transition);
}
.btn-outline-dark:hover { border-color: var(--black); background: var(--black); color: var(--white); }

.btn-ghost {
    display: inline-flex; align-items: center; gap: 6px;
    font-family: var(--font-th); font-size: 13px; font-weight: 500;
    color: var(--black); border: 1px solid var(--gray-200);
    padding: 7px 16px; border-radius: var(--radius-sm);
    transition: var(--transition); width: fit-content;
}
.btn-ghost:hover { background: var(--orange); color: var(--white); border-color: var(--orange); }

.btn-line { background: #00B900 !important; border-color: #00B900 !important; }

/* --------------------------------------------------------------------------
   PRODUCT CARDS (used on Home & Products pages)
   -------------------------------------------------------------------------- */
.product-grid-home {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 24px;
    margin-top: 48px;
}

.product-card {
    background: var(--white); border-radius: var(--radius-md);
    overflow: hidden; border: 1px solid var(--gray-200);
    transition: var(--transition);
    display: flex; flex-direction: column; text-decoration: none;
    box-shadow: none;
}
.product-card:hover {
    transform: translateY(-6px);
    border-color: var(--orange);
}
.product-img-wrap {
    background-color: var(--gray-50); padding: 0;
    display: flex; align-items: center; justify-content: center;
    aspect-ratio: 4/3; border-bottom: 1px solid var(--gray-100);
}
.product-img {
    max-width: 100%; max-height: 100%; object-fit: contain;
    transition: transform 0.4s ease;
}
.product-card:hover .product-img { transform: scale(1.08); }

.product-info {
    padding: 20px; position: relative;
    display: flex; flex-direction: column; flex-grow: 1;
    background-color: var(--white);
}
.product-title {
    font-family: var(--font-th); font-size: 18px; font-weight: 700;
    color: var(--black); margin-bottom: 4px; margin-top: 0;
}
.product-subtitle {
    font-family: var(--font-en); font-size: 14px;
    color: var(--gray-400); font-weight: 400; display: block;
}
.product-arrow {
    position: absolute; bottom: 20px; right: 20px;
    width: 32px; height: 32px; border-radius: 50%;
    background-color: var(--gray-100); color: var(--gray-600);
    display: flex; align-items: center; justify-content: center;
    font-size: 12px; transition: var(--transition);
}
.product-card:hover .product-arrow { background-color: var(--orange); color: var(--white); }

/* --------------------------------------------------------------------------
   BLOG / ARTICLE CARDS (used on Home & Articles pages)
   -------------------------------------------------------------------------- */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 48px; }

.blog-card {
    background: var(--white); border: 1px solid var(--gray-200);
    border-radius: var(--radius-md); overflow: hidden;
    transition: var(--transition); display: flex; flex-direction: column;
}
.blog-card:hover { border-color: var(--orange); }
.blog-card .img-ph { height: 190px; border-radius: 0; border-bottom: 1px solid var(--gray-200); }
.blog-card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.blog-date { font-family: var(--font-en); font-size: 12px; color: var(--gray-400); letter-spacing: 0.04em; margin-bottom: 10px; display: flex; align-items: center; gap: 6px; }
.blog-date i { color: var(--orange); }
.blog-card h3 { font-family: var(--font-th); font-size: 17px; font-weight: 600; line-height: 1.4; margin-bottom: 10px; }
.blog-card h3 a:hover { color: var(--orange); }
.blog-card p { font-family: var(--font-th); font-size: 16px; color: var(--gray-600); line-height: 1.65; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 20px; flex: 1; }

@media (max-width: 900px) { .blog-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 768px) { .blog-grid { grid-template-columns: 1fr; } }

/* --------------------------------------------------------------------------
   PAGE HERO BAR (shared: products & articles index pages)
   -------------------------------------------------------------------------- */
.stats-bar {
    background: var(--dark-bg-mid); padding: 40px 0;
    border-top: 3px solid var(--orange);
}
.hero-stats-bar { border-top: none; border-bottom: 3px solid var(--orange); }

.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: #2e2e2e; }
.stat-item { background: var(--dark-bg-mid); padding: 28px 32px; text-align: center; }
.stat-num { font-family: var(--font-en); font-size: 38px; font-weight: 700; color: var(--orange); line-height: 1; margin-bottom: 6px; }
.stat-label { font-family: var(--font-th); font-size: 14px; color: var(--gray-400); font-weight: 300; }

.hero-flex-container { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; padding: 16px 0; }
.hero-main-title { font-family: var(--font-th); font-size: clamp(32px,5vw,52px); font-weight: 700; color: var(--white); line-height: 1.2; letter-spacing: -0.02em; }
.hero-sub-title { font-family: var(--font-th); font-size: 17px; color: var(--gray-400); font-weight: 300; margin-top: 8px; }

.page-breadcrumb { font-family: var(--font-th); font-size: 13px; color: var(--gray-400); }
.page-breadcrumb a { color: var(--gray-400); transition: var(--transition); }
.page-breadcrumb a:hover { color: var(--orange); }

@media (max-width: 640px) { .stats-grid { grid-template-columns: repeat(2,1fr); } }

/* --------------------------------------------------------------------------
   BREADCRUMB (product detail page)
   -------------------------------------------------------------------------- */
.breadcrumb { padding: 20px 0; font-size: 15px; color: var(--gray-600); }
.breadcrumb a { color: var(--gray-600); }
.breadcrumb a:hover { color: var(--orange); }
.breadcrumb span { color: var(--gray-400); font-weight: 500; }

/* --------------------------------------------------------------------------
   CLIENTS SECTION
   -------------------------------------------------------------------------- */
.clients-section { background: var(--white); }
.clients-track { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 20px 32px; margin-top: 48px; }
.client-logo-img {
    width: 180px; height: 100px; object-fit: contain;
    border: 1px solid var(--gray-200); border-radius: var(--radius-md);
    padding: 16px; background: var(--white);
    filter: grayscale(100%); opacity: 0.8;
    transition: var(--transition); cursor: pointer;
    backface-visibility: hidden; transform: translateZ(0); will-change: transform,filter;
}
.client-logo-img:hover { filter: grayscale(0%); opacity: 1; border-color: var(--orange); }

/* --------------------------------------------------------------------------
   FOOTER
   -------------------------------------------------------------------------- */
.site-footer { background: var(--dark-bg); color: var(--gray-400); font-family: var(--font-th); }

.footer-contact-bar { border-bottom: 1px solid var(--dark-border); padding: 40px 0; }
.footer-contact-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--dark-border); }
.footer-contact-item { background: var(--dark-bg); padding: 28px 32px; display: flex; align-items: center; gap: 16px; transition: var(--transition); }
.footer-contact-item:hover { background: #1e1e1e; }
.fci-icon { width: 44px; height: 44px; background: var(--orange-light); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; color: var(--orange); font-size: 17px; flex-shrink: 0; border: 1px solid var(--orange-border); }
.fci-text h4 { font-size: 13px; font-weight: 600; color: var(--gray-400); letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 4px; font-family: var(--font-en); }
.fci-text p { font-size: 15px; color: var(--white); font-weight: 400; }

.footer-main { padding: 64px 0; }
.footer-main-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.4fr; gap: 48px; }
.footer-col h3 { font-family: var(--font-en); font-size: 13px; font-weight: 600; color: var(--white); letter-spacing: 0.1em; text-transform: uppercase; margin-bottom: 24px; padding-bottom: 12px; border-bottom: 1px solid var(--dark-border-2); }
.footer-brand-row { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.footer-brand-row i { font-size: 28px; color: var(--orange); }
.footer-brand-row h2 { font-size: 18px; font-weight: 700; color: var(--white); font-family: var(--font-th); }
.footer-desc { font-size: 15px; line-height: 1.8; color: var(--gray-400); }
.footer-desc .tax { color: var(--orange); font-size: 12px; font-family: var(--font-en); letter-spacing: 0.04em; display: block; margin-top: 8px; }

.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 15px; color: var(--gray-400); display: flex; align-items: center; gap: 8px; transition: var(--transition); padding: 2px 0; }
.footer-links a::before { content: '—'; font-size: 10px; color: var(--orange); opacity: 0; transform: translateX(-8px); transition: var(--transition); }
.footer-links a:hover { color: var(--white); padding-left: 6px; }
.footer-links a:hover::before { opacity: 1; transform: translateX(0); }

.map-ph { width: 100%; height: 160px; background: var(--dark-bg-mid); border: 1.5px dashed #444; border-radius: var(--radius-sm); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; color: #555; font-family: var(--font-en); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; }
.map-ph i { font-size: 22px; color: var(--orange); opacity: 0.5; }

.footer-social-bar { border-top: 1px solid var(--dark-border-2); padding: 28px 0; }
.footer-social-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; }
.social-group { display: flex; align-items: center; gap: 16px; }
.social-group span { font-size: 13px; color: var(--gray-400); font-weight: 400; }
.social-icons { display: flex; gap: 8px; }
.social-icons a { width: 34px; height: 34px; border-radius: var(--radius-sm); background: var(--dark-border); border: 1px solid #333; display: flex; align-items: center; justify-content: center; color: var(--gray-400); font-size: 14px; transition: var(--transition); }
.social-icons a:hover { background: var(--orange); color: var(--white); border-color: var(--orange); }

.subscribe-form { display: flex; border: 1px solid #333; border-radius: var(--radius-sm); overflow: hidden; }
.subscribe-form input { background: #222; border: none; padding: 10px 16px; color: var(--white); font-family: var(--font-th); font-size: 15px; outline: none; width: 200px; }
.subscribe-form input::placeholder { color: #555; }
.subscribe-form button { background: var(--orange); color: var(--white); border: none; padding: 0 18px; font-family: var(--font-en); font-size: 12px; font-weight: 700; letter-spacing: 0.06em; cursor: pointer; transition: var(--transition); text-transform: uppercase; }
.subscribe-form button:hover { background: var(--orange-dark); }

.footer-bottom { background: #0f0f0f; padding: 18px 0; border-top: 1px solid var(--dark-border); text-align: center; }
.footer-bottom p { font-size: 12px; color: #444; font-family: var(--font-en); }
.footer-bottom a { color: var(--orange); }
.footer-bottom a:hover { color: var(--orange-dark); }

@media (max-width: 992px) {
    .footer-contact-grid { grid-template-columns: 1fr; }
    .footer-main-grid { grid-template-columns: 1fr 1fr; }
    .footer-social-inner { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 640px) { .footer-main-grid { grid-template-columns: 1fr; } }

/* --------------------------------------------------------------------------
   FLOATING BUTTONS
   -------------------------------------------------------------------------- */
.float-btn {
    position: fixed; right: 20px; width: 46px; height: 46px;
    background: var(--black); color: var(--white); border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 16px; cursor: pointer; z-index: 800;
    transition: var(--transition); border: 2px solid #222; box-shadow: var(--shadow-md);
}
.float-btn:hover { background: var(--orange); border-color: var(--orange); transform: translateY(-2px); }
.float-call { bottom: 84px; }
.float-top  { bottom: 28px; }