/* =========================================================
   Comprayook Solution — main stylesheet
   ธีม: เทาเข้มอุตสาหกรรม + ส้มสัญญาณ (ตรงกับ Company Profile)
   ========================================================= */
:root {
    --ink: #1B232B;
    --ink-2: #2B3742;
    --accent: #F28C28;
    --accent-ink: #1B232B;
    --accent-soft: #FDEBD8;
    --teal: #1FA79A;
    --red: #E04E39;
    --muted: #5E6C78;
    --line: #DCE2E7;
    --bg: #FFFFFF;
    --bg-2: #F3F5F7;
    --card: #FFFFFF;
    --text: #1B232B;
    --shadow: 0 10px 30px rgba(27, 35, 43, .08);
    --shadow-lg: 0 20px 50px rgba(27, 35, 43, .16);
    --radius: 14px;
    --font: "IBM Plex Sans Thai", "Leelawadee UI", "Segoe UI", Tahoma, sans-serif;
    --header-h: 72px;
}
[data-theme="dark"] {
    --accent-soft: #3A2A1A;
    --muted: #9AA8B4;
    --line: #2E3A45;
    --bg: #12181E;
    --bg-2: #18212A;
    --card: #1D2731;
    --text: #E8EDF1;
    --shadow: 0 10px 30px rgba(0, 0, 0, .35);
    --shadow-lg: 0 20px 50px rgba(0, 0, 0, .5);
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; } /* ให้ attribute hidden ชนะ class ที่กำหนด display เสมอ */
html { overflow-x: clip; scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 56px); }
body {
    margin: 0;
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    transition: background-color .3s, color .3s;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
p a, .muted a, .faq a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
h1, h2, h3, h4 { line-height: 1.3; margin: 0 0 .5em; font-weight: 700; }
h2 { font-size: clamp(1.6rem, 1.2rem + 1.6vw, 2.4rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1em; }
button { font: inherit; cursor: pointer; }
.container { width: min(1200px, 100% - 32px); margin-inline: auto; }
.muted { color: var(--muted); }
.body-lg { font-size: 1.1rem; }
.skip-link { position: absolute; left: -999px; top: 8px; background: var(--accent); color: var(--ink); padding: 8px 14px; z-index: 999; border-radius: 8px; }
.skip-link:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

/* ---------- buttons ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: .5em;
    padding: .7em 1.4em; border-radius: 999px; border: 2px solid transparent;
    font-weight: 600; font-size: .98rem; line-height: 1.2; white-space: nowrap;
    transition: transform .2s, box-shadow .2s, background-color .2s, color .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--accent); color: var(--accent-ink); box-shadow: 0 8px 20px rgba(242, 140, 40, .35); }
.btn-primary:hover { box-shadow: 0 12px 26px rgba(242, 140, 40, .45); }
.btn-outline { border-color: var(--line); color: var(--text); background: var(--card); }
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-ghost-light { border-color: rgba(255, 255, 255, .45); color: #fff; }
.btn-ghost-light:hover { background: rgba(255, 255, 255, .12); border-color: #fff; }
.btn-lg { padding: .9em 1.7em; font-size: 1.05rem; }
.btn-sm { padding: .5em 1em; font-size: .9rem; }
.btn-block { width: 100%; }
.icon-btn {
    width: 42px; height: 42px; display: inline-grid; place-items: center; border-radius: 50%;
    border: 1px solid var(--line); background: var(--card); color: var(--text); font-size: 1.15rem;
    transition: transform .2s, border-color .2s;
}
.icon-btn:hover { border-color: var(--accent); transform: rotate(-12deg); }

.eyebrow {
    display: inline-flex; align-items: center; gap: .45em; color: var(--accent);
    font-weight: 700; font-size: .82rem; letter-spacing: .14em; text-transform: uppercase; margin-bottom: .6rem;
}
.eyebrow-light { color: #FFC56B; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 1rem 0; }
.chip { padding: .3em .85em; border-radius: 999px; background: var(--bg-2); border: 1px solid var(--line); font-size: .85rem; font-weight: 500; }
.chips-dark .chip { background: rgba(255, 255, 255, .08); border-color: rgba(255, 255, 255, .16); color: #fff; }
.chips-accent .chip { background: transparent; border-color: var(--accent); color: #FFC56B; }

/* ---------- scroll progress ---------- */
.scroll-progress { position: fixed; top: 0; left: 0; height: 3px; width: 0; background: linear-gradient(90deg, var(--accent), var(--teal)); z-index: 1000; }

/* ---------- topbar & header ---------- */
.topbar { background: var(--ink); color: #B8C4CE; font-size: .85rem; }
.topbar-inner { display: flex; gap: 22px; padding: 7px 0; flex-wrap: wrap; }
.topbar a:hover { color: var(--accent); }
.topbar i { color: var(--accent); margin-right: 4px; }
.topbar-hours { margin-left: auto; }

.site-header {
    position: sticky; top: 0; z-index: 900; height: var(--header-h);
    background: color-mix(in srgb, var(--bg) 88%, transparent);
    backdrop-filter: saturate(160%) blur(12px); -webkit-backdrop-filter: saturate(160%) blur(12px);
    border-bottom: 1px solid transparent; transition: border-color .3s, box-shadow .3s;
}
.site-header.is-scrolled { border-color: var(--line); box-shadow: 0 6px 20px rgba(0, 0, 0, .06); }
.nav-inner { height: 100%; display: flex; align-items: center; gap: 24px; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
    display: inline-grid; place-items: center; width: 52px; height: 36px; border-radius: 9px;
    background: var(--accent); color: var(--ink); font-weight: 800; letter-spacing: .02em;
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { letter-spacing: .18em; font-size: 1rem; }
.brand-text small { color: var(--muted); font-size: .72rem; }
.main-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.main-nav > a, .nav-dropdown > a {
    padding: 8px 14px; border-radius: 999px; font-weight: 500; position: relative; transition: color .2s, background-color .2s;
}
.main-nav > a:hover, .nav-dropdown > a:hover { color: var(--accent); }
.main-nav a.active { color: var(--accent); background: var(--accent-soft); }
.nav-actions { display: flex; align-items: center; gap: 10px; }
.menu-toggle { display: none; }
.admin-pill { position: relative; display: inline-flex; align-items: center; gap: 6px; height: 42px; padding: 0 14px; border-radius: 999px; background: var(--ink); color: #fff; font-weight: 600; font-size: .9rem; transition: background-color .2s, transform .2s; }
.admin-pill:hover { background: var(--accent); color: var(--ink); transform: translateY(-1px); }
.admin-pill i { color: var(--accent); font-size: 1.05rem; }
.admin-pill:hover i { color: var(--ink); }
.admin-pill b { position: absolute; top: -4px; right: -4px; min-width: 20px; height: 20px; padding: 0 5px; border-radius: 999px; background: var(--red); color: #fff; font-size: .72rem; display: grid; place-items: center; border: 2px solid var(--bg); }
[data-theme="dark"] .admin-pill { background: var(--ink-2); }
.btn-edit { border-style: dashed; }
.login-btn { display: inline-flex; align-items: center; gap: 6px; height: 42px; padding: 0 14px; border-radius: 999px; border: 1px solid var(--line); background: var(--card); color: var(--text); font-weight: 600; font-size: .9rem; transition: border-color .2s, color .2s; }
.login-btn i { font-size: 1.05rem; color: var(--muted); transition: color .2s; }
.login-btn:hover { border-color: var(--accent); color: var(--accent); }
.login-btn:hover i { color: var(--accent); }

.nav-dropdown { position: relative; }
.nav-dropdown > a i { font-size: .7rem; margin-left: 2px; }
.dropdown-panel {
    position: absolute; top: calc(100% + 12px); left: 50%; transform: translate(-50%, 8px);
    width: 560px; display: grid; grid-template-columns: 1fr 1fr; gap: 4px; padding: 12px;
    background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-lg);
    opacity: 0; visibility: hidden; transition: opacity .2s, transform .2s, visibility .2s;
}
.nav-dropdown:hover .dropdown-panel, .nav-dropdown:focus-within .dropdown-panel { opacity: 1; visibility: visible; transform: translate(-50%, 0); }
.dropdown-panel::before { content: ""; position: absolute; top: -14px; left: 0; right: 0; height: 14px; }
.mega-panel { display: block; width: min(calc(var(--cols) * 250px + 24px), 94vw); padding: 16px; }
.mega-cols { display: grid; grid-template-columns: repeat(var(--cols), 1fr); gap: 8px; }
.mega-col { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.mega-col + .mega-col { border-left: 1px solid var(--line); padding-left: 8px; }
.mega-col h6 { margin: 2px 12px 6px; font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); font-weight: 700; }
.mega-all { justify-content: center; margin-top: 10px; border-top: 1px solid var(--line); border-radius: 0 !important; padding-top: 12px !important; font-weight: 600; color: var(--accent); }
.mega-all:hover { background: transparent !important; }
.dropdown-panel a { display: flex; gap: 12px; padding: 10px 12px; border-radius: 10px; align-items: flex-start; font-size: .92rem; line-height: 1.35; }
.dropdown-panel a:hover { background: var(--bg-2); }
.dropdown-panel i { font-size: 1.2rem; color: var(--accent); margin-top: 2px; }
.dropdown-panel small { display: block; color: var(--muted); font-size: .76rem; }

/* ---------- hero ---------- */
.hero { position: relative; min-height: calc(100vh - var(--header-h) - 36px); display: flex; align-items: center; color: #fff; overflow: hidden; background: var(--ink); }
.hero-slides, .hero-slide, .hero-overlay { position: absolute; inset: 0; }
.hero-slide { background-size: cover; background-position: center; opacity: 0; transform: scale(1.08); transition: opacity 1.4s ease, transform 7s ease; }
.hero-slide.is-active { opacity: 1; transform: scale(1); }
.hero-overlay { background: linear-gradient(100deg, rgba(18, 24, 30, .94) 0%, rgba(18, 24, 30, .82) 45%, rgba(18, 24, 30, .45) 100%); }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; padding: 72px 0 96px; }
.hero h1 { font-size: clamp(2.1rem, 1.4rem + 3vw, 3.6rem); margin-bottom: .4em; }
.typed { color: var(--accent); }
.caret { display: inline-block; width: 3px; height: .9em; background: var(--accent); margin-left: 4px; vertical-align: -.08em; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.hero .lead { font-size: 1.12rem; color: #C9D3DB; max-width: 600px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 1.6rem 0; }
.hero-actions.center { justify-content: center; }
.hero-tags { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; padding: 0; margin: 0; }
.hero-tags li { display: inline-flex; align-items: center; gap: 6px; padding: 3px 12px 3px 3px; border: 1px solid rgba(255, 255, 255, .22); border-radius: 999px; font-size: .85rem; color: #DCE3E9; background: rgba(27, 35, 43, .35); transition: border-color .2s, background-color .2s; }
.hero-tags li:hover { border-color: var(--accent); background: rgba(242, 140, 40, .15); }
.ht-icon, .ht-logo { width: 22px; height: 22px; flex-shrink: 0; border-radius: 50%; }
.ht-icon { padding: 4px; background: rgba(242, 140, 40, .18); color: var(--accent); stroke-width: 3; }
.ht-logo { display: grid; place-items: center; background: #fff; }
.ht-logo img { width: 14px; height: 14px; }
.hero-dots { position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%); display: flex; gap: 8px; }
.hero-dots button { width: 10px; height: 10px; border-radius: 999px; border: 0; background: rgba(255, 255, 255, .35); transition: width .3s, background-color .3s; padding: 0; }
.hero-dots button.is-active { width: 30px; background: var(--accent); }

/* live dashboard card */
.live-card {
    background: rgba(27, 35, 43, .72); border: 1px solid rgba(255, 255, 255, .12); border-radius: 20px; padding: 20px;
    backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); box-shadow: 0 30px 60px rgba(0, 0, 0, .35);
    animation: floaty 6s ease-in-out infinite;
}
@keyframes floaty { 50% { transform: translateY(-10px); } }
.live-head { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: .82rem; letter-spacing: .12em; color: #fff; margin-bottom: 14px; }
.live-note { margin-left: auto; font-weight: 400; letter-spacing: 0; color: #9AA8B4; font-size: .78rem; }
.live-dot { width: 9px; height: 9px; border-radius: 50%; background: #3DDC97; box-shadow: 0 0 0 0 rgba(61, 220, 151, .7); animation: pulse 1.8s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 10px rgba(61, 220, 151, 0); } 100% { box-shadow: 0 0 0 0 rgba(61, 220, 151, 0); } }
.live-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.live-tile { background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .08); border-radius: 14px; padding: 14px; min-width: 0; }
.live-tile small { color: #9AA8B4; display: block; font-size: .8rem; }
.live-tile i { color: var(--accent); }
.live-tile strong { display: block; font-size: 1.6rem; font-variant-numeric: tabular-nums; margin: 2px 0 6px; }
.live-tile em { font-style: normal; font-size: .85rem; color: #9AA8B4; font-weight: 500; }
.spark { width: 100%; height: 44px; }
.status-pill { display: inline-block; padding: 2px 12px; border-radius: 999px; font-weight: 700; font-size: .8rem; background: #1F8F55; color: #fff; transition: background-color .3s; }
.status-pill.hi { background: var(--red); }
.status-pill.lo { background: #E0B339; color: var(--ink); }
.bar { height: 8px; border-radius: 999px; background: rgba(255, 255, 255, .1); overflow: hidden; margin-top: 10px; }
.bar span { display: block; height: 100%; background: var(--accent); border-radius: inherit; transition: width .8s ease; }
.bar-teal span { background: var(--teal); }

/* ---------- stats ---------- */
.stats { background: var(--ink); color: #fff; border-top: 1px solid rgba(255, 255, 255, .08); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 34px 20px; text-align: center; border-right: 1px solid rgba(255, 255, 255, .08); }
.stat:last-child { border-right: 0; }
.stat strong { display: block; font-size: clamp(2rem, 1.5rem + 2vw, 3rem); color: var(--accent); line-height: 1.1; font-variant-numeric: tabular-nums; }
.stat span { color: #B8C4CE; font-size: .95rem; }

/* ---------- sections ---------- */
.section { padding: clamp(64px, 8vw, 104px) 0; }
.section-alt { background: var(--bg-2); }
.section-dark { background: var(--ink); color: #fff; }
.section-dark p { color: #B8C4CE; }
.section-head { max-width: 720px; margin-bottom: 44px; }
.section-head p { color: var(--muted); font-size: 1.05rem; }
.section-head-row { max-width: none; display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; flex-wrap: wrap; }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; transition-delay: calc(var(--d, 0) * 90ms); }
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------- solution cards ---------- */
.solution-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.solution-card {
    display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
    overflow: hidden; transition: transform .35s, box-shadow .35s, border-color .35s;
}
.solution-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: transparent; }
.solution-media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--bg-2); }
.solution-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.solution-card:hover .solution-media img { transform: scale(1.08); }
.badge-new { position: absolute; top: 12px; left: 12px; background: var(--accent); color: var(--ink); font-weight: 700; font-size: .78rem; padding: 3px 10px; border-radius: 999px; }
.badge-inline { background: var(--accent); color: var(--ink); padding: 1px 8px; border-radius: 999px; letter-spacing: 0; font-size: .75rem; }
.solution-body { position: relative; padding: 30px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.solution-icon {
    position: absolute; top: -24px; left: 20px; width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center;
    background: var(--ink); color: var(--accent); font-size: 1.35rem; box-shadow: var(--shadow); transition: background-color .3s, color .3s, transform .3s;
}
.solution-card:hover .solution-icon { background: var(--accent); color: var(--ink); transform: rotate(-8deg); }
.solution-body small { color: var(--accent); font-weight: 600; font-size: .8rem; letter-spacing: .06em; }
.solution-body h3 { margin: 2px 0 8px; }
.solution-body p { color: var(--muted); font-size: .93rem; flex: 1; }
.more { font-weight: 600; color: var(--accent); font-size: .92rem; }
.more i { transition: transform .25s; display: inline-block; }
.solution-card:hover .more i { transform: translateX(5px); }

/* ---------- why us ---------- */
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.why-media { position: relative; padding: 0 40px 60px 0; }
.why-main { border-radius: 18px; box-shadow: var(--shadow-lg); aspect-ratio: 4 / 3; object-fit: cover; width: 100%; }
.why-float { position: absolute; right: 0; bottom: 0; width: 46%; aspect-ratio: 1; object-fit: cover; border-radius: 16px; border: 6px solid var(--bg-2); box-shadow: var(--shadow-lg); }
.why-badge {
    position: absolute; left: -16px; bottom: 30px; background: var(--accent); color: var(--ink); border-radius: 16px; padding: 14px 18px;
    display: flex; align-items: center; gap: 10px; box-shadow: var(--shadow-lg); line-height: 1.2;
}
.why-badge strong { font-size: 2.2rem; }
.why-badge span { font-weight: 600; font-size: .85rem; }
.why-copy > p { color: var(--muted); font-size: 1.05rem; }
.why-list { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 28px; }
.why-list i { display: inline-grid; place-items: center; width: 44px; height: 44px; border-radius: 12px; background: var(--accent-soft); color: var(--accent); font-size: 1.25rem; margin-bottom: 10px; }
.why-list h4 { margin: 0 0 4px; font-size: 1.02rem; }
.why-list p { color: var(--muted); font-size: .92rem; margin: 0; }

/* ---------- marquee ---------- */
.marquee { overflow: hidden; background: var(--accent); padding: 18px 0; position: relative; }
.marquee::before, .marquee::after { content: ""; position: absolute; top: 0; bottom: 0; width: 80px; z-index: 1; pointer-events: none; }
.marquee::before { left: 0; background: linear-gradient(90deg, var(--accent), transparent); }
.marquee::after { right: 0; background: linear-gradient(270deg, var(--accent), transparent); }
.marquee-track { display: flex; gap: 14px; width: max-content; animation: marquee 50s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
.mq-chip {
    display: inline-flex; align-items: center; gap: 10px; white-space: nowrap; padding: 8px 18px 8px 8px; border-radius: 999px;
    background: #fff; color: var(--ink); font-weight: 700; font-size: 1rem; box-shadow: 0 4px 12px rgba(27, 35, 43, .15);
    transition: transform .25s;
}
.mq-chip:hover { transform: translateY(-3px) scale(1.04); }
.mq-chip img, .mq-icon { width: 34px; height: 34px; flex-shrink: 0; object-fit: contain; }
.mq-icon { padding: 5px; border-radius: 50%; background: var(--ink); color: var(--accent); stroke-width: 2.8; }
.mq-board img { width: 54px; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- filter & gallery ---------- */
.filter-bar { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 26px; }
.filter-bar button, .filter-bar a {
    border: 1px solid var(--line); background: var(--card); color: var(--text); padding: .45em 1.1em; border-radius: 999px; font-weight: 500; font-size: .92rem;
    transition: all .2s;
}
.filter-bar button span { color: var(--muted); font-size: .8rem; margin-left: 2px; }
.filter-bar button:hover, .filter-bar a:hover { border-color: var(--accent); }
.filter-bar .is-active { background: var(--ink); border-color: var(--ink); color: #fff; }
.filter-bar .is-active span { color: #FFC56B; }
[data-theme="dark"] .filter-bar .is-active { background: var(--accent); border-color: var(--accent); color: var(--ink); }
[data-theme="dark"] .filter-bar .is-active span { color: var(--ink); }

.gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.gallery-item { position: relative; display: block; border-radius: 12px; overflow: hidden; background: var(--bg-2); aspect-ratio: 4 / 3; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.gallery-item:hover img { transform: scale(1.07); }
.gallery-cap {
    position: absolute; inset: auto 0 0 0; padding: 30px 14px 12px; color: #fff; font-size: .88rem; line-height: 1.4;
    background: linear-gradient(transparent, rgba(18, 24, 30, .9)); transform: translateY(40%); opacity: 0; transition: all .35s;
}
.gallery-cap small { display: block; color: #FFC56B; font-weight: 600; font-size: .75rem; }
.gallery-item:hover .gallery-cap, .gallery-item:focus-visible .gallery-cap { transform: none; opacity: 1; }
.gallery-item::after { content: "\F52A"; font-family: "bootstrap-icons"; position: absolute; top: 10px; right: 10px; width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: rgba(255, 255, 255, .9); color: var(--ink); opacity: 0; transform: scale(.6); transition: all .3s; }
.gallery-item:hover::after { opacity: 1; transform: none; }
.gallery-item.is-hidden { display: none; }
.masonry { columns: 4 260px; column-gap: 14px; }
.masonry .gallery-item { aspect-ratio: auto; margin-bottom: 14px; break-inside: avoid; }
.masonry .gallery-item img { height: auto; }
.masonry .gallery-cap { transform: none; opacity: 1; }

/* ---------- process ---------- */
.process { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; counter-reset: p; position: relative; }
.process::before { content: ""; position: absolute; top: 34px; left: 8%; right: 8%; border-top: 2px dashed rgba(255, 255, 255, .2); }
.process li { position: relative; }
.process-icon { display: grid; place-items: center; width: 68px; height: 68px; border-radius: 50%; background: var(--ink-2); border: 2px solid rgba(255, 255, 255, .12); color: var(--accent); font-size: 1.6rem; margin-bottom: 16px; position: relative; transition: transform .3s, background-color .3s, color .3s; }
.process li:hover .process-icon { background: var(--accent); color: var(--ink); transform: scale(1.08); }
.process small { color: var(--accent); font-weight: 700; }
.process h3 { margin: 4px 0 6px; color: #fff; }
.process p { font-size: .93rem; margin: 0; }

/* ---------- video ---------- */
.video-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 56px; align-items: center; }
.video-grid p { color: var(--muted); }
.video-thumb { position: relative; border: 0; padding: 0; border-radius: 18px; overflow: hidden; box-shadow: var(--shadow-lg); background: var(--ink); aspect-ratio: 16 / 9; width: 100%; }
.video-thumb img { width: 100%; height: 100%; object-fit: cover; opacity: .85; transition: transform .6s, opacity .3s; }
.video-thumb:hover img { transform: scale(1.04); opacity: 1; }
.play { position: absolute; inset: 0; margin: auto; width: 84px; height: 84px; border-radius: 50%; display: grid; place-items: center; background: var(--accent); color: var(--ink); font-size: 2.4rem; box-shadow: 0 0 0 0 rgba(242, 140, 40, .6); animation: ring 2s infinite; }
@keyframes ring { 70% { box-shadow: 0 0 0 22px rgba(242, 140, 40, 0); } 100% { box-shadow: 0 0 0 0 rgba(242, 140, 40, 0); } }

/* ---------- faq ---------- */
.faq-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 56px; align-items: start; }
.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 12px; margin-bottom: 12px; transition: box-shadow .3s; }
.faq details[open] { box-shadow: var(--shadow); }
.faq summary { list-style: none; cursor: pointer; padding: 18px 20px; font-weight: 600; display: flex; justify-content: space-between; gap: 16px; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary i { color: var(--accent); transition: transform .3s; flex-shrink: 0; }
.faq details[open] summary i { transform: rotate(45deg); }
.faq details p { padding: 0 20px 18px; margin: 0; color: var(--muted); }

/* ---------- CTA band ---------- */
.cta-band { background: linear-gradient(120deg, var(--ink) 0%, var(--ink-2) 100%); color: #fff; padding: 56px 0; position: relative; overflow: hidden; }
.cta-band::before { content: ""; position: absolute; right: -120px; top: -120px; width: 360px; height: 360px; border-radius: 50%; background: radial-gradient(circle, rgba(242, 140, 40, .35), transparent 70%); }
.cta-inner { display: flex; justify-content: space-between; align-items: center; gap: 30px; flex-wrap: wrap; position: relative; }
.cta-inner h2 { margin-bottom: .2em; }
.cta-inner p { color: #B8C4CE; margin: 0; }
.cta-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- footer ---------- */
.site-footer { background: #12181E; color: #B8C4CE; padding: 64px 0 0; font-size: .94rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr .8fr 1.3fr; gap: 40px; }
.site-footer h4 { color: #fff; font-size: 1rem; margin-bottom: 16px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 8px; }
.site-footer a:hover { color: var(--accent); }
.brand-footer .brand-text strong { color: #fff; }
.footer-about { margin: 16px 0; }
.socials { display: flex; gap: 10px; }
.socials a { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; border: 1px solid rgba(255, 255, 255, .15); transition: all .2s; }
.socials a:hover { background: var(--accent); color: var(--ink); border-color: var(--accent); }
.footer-contact li { display: flex; gap: 10px; }
.footer-contact i { color: var(--accent); }
.footer-contact .hours { justify-content: space-between; border-bottom: 1px dashed rgba(255, 255, 255, .08); padding-bottom: 4px; }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; border-top: 1px solid rgba(255, 255, 255, .08); margin-top: 48px; padding: 20px 0; font-size: .85rem; }

/* ---------- floating buttons ---------- */
.fab-stack { position: fixed; right: 18px; bottom: 18px; display: flex; flex-direction: column; gap: 10px; z-index: 800; }
.fab { width: 50px; height: 50px; border-radius: 50%; display: grid; place-items: center; border: 0; color: #fff; font-size: 1.25rem; box-shadow: var(--shadow-lg); transition: transform .25s, opacity .3s; }
.fab:hover { transform: scale(1.1); }
.fab-call { background: var(--teal); animation: wiggle 4s ease-in-out infinite; }
@keyframes wiggle { 0%, 88%, 100% { transform: rotate(0); } 91% { transform: rotate(-14deg); } 94% { transform: rotate(14deg); } 97% { transform: rotate(-8deg); } }
.fab-line { background: #06C755; }
.fab-top { background: var(--ink); opacity: 0; pointer-events: none; }
.fab-top.is-visible { opacity: 1; pointer-events: auto; }
[data-theme="dark"] .fab-top { background: var(--ink-2); }

/* ---------- lightbox & video modal ---------- */
.lightbox, .video-modal { position: fixed; inset: 0; z-index: 2000; background: rgba(10, 14, 18, .94); display: grid; place-items: center; padding: 60px 70px; animation: fadein .25s; }
.lightbox[hidden], .video-modal[hidden] { display: none; }
@keyframes fadein { from { opacity: 0; } }
.lightbox figure { margin: 0; max-width: 100%; max-height: 100%; display: flex; flex-direction: column; align-items: center; }
.lightbox img { max-height: calc(100vh - 160px); max-width: 100%; object-fit: contain; border-radius: 8px; animation: zoomin .3s; }
@keyframes zoomin { from { transform: scale(.94); opacity: 0; } }
.lightbox figcaption { color: #DCE3E9; margin-top: 14px; text-align: center; }
.lightbox figcaption span { color: var(--accent); margin-left: 8px; font-size: .85rem; }
.lb-close, .lb-prev, .lb-next { position: absolute; border: 0; background: rgba(255, 255, 255, .1); color: #fff; width: 48px; height: 48px; border-radius: 50%; font-size: 1.3rem; transition: background-color .2s; }
.lb-close:hover, .lb-prev:hover, .lb-next:hover { background: var(--accent); color: var(--ink); }
.lb-close { top: 16px; right: 16px; }
.lb-prev { left: 14px; top: 50%; transform: translateY(-50%); }
.lb-next { right: 14px; top: 50%; transform: translateY(-50%); }
.video-frame { width: min(1000px, 100%); aspect-ratio: 16 / 9; }
.video-frame iframe { width: 100%; height: 100%; border: 0; border-radius: 12px; }

/* ---------- page hero ---------- */
.page-hero { position: relative; color: #fff; padding: 84px 0 76px; background: var(--ink); overflow: hidden; }
.page-hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: .28; transform: scale(1.05); }
.page-hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, rgba(18, 24, 30, .95), rgba(18, 24, 30, .6)); }
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { font-size: clamp(2rem, 1.4rem + 2.6vw, 3.2rem); margin-bottom: .3em; }
.page-hero p { color: #C9D3DB; font-size: 1.1rem; max-width: 680px; }
.page-hero-solution { padding-bottom: 64px; }
.crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: .88rem; color: #9AA8B4; margin-bottom: 18px; }
.crumbs a:hover { color: var(--accent); }
.crumbs i { font-size: .7rem; }

/* ---------- solution list ---------- */
.search-row { display: flex; align-items: center; gap: 16px; margin-bottom: 30px; flex-wrap: wrap; }
.search-box { flex: 1; min-width: 260px; display: flex; align-items: center; gap: 10px; background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 0 20px; transition: border-color .2s, box-shadow .2s; }
.search-box:focus-within { border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.search-box i { color: var(--muted); }
.search-box input { flex: 1; border: 0; background: transparent; padding: 14px 0; font: inherit; color: var(--text); outline: none; }
.search-count { color: var(--muted); font-size: .92rem; }
.solution-list { display: grid; gap: 28px; }
.solution-row { display: grid; grid-template-columns: 420px 1fr; gap: 36px; background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 20px; transition: box-shadow .3s; }
.solution-row:hover { box-shadow: var(--shadow-lg); }
.solution-row[hidden] { display: none; }
.solution-row-media { border-radius: 12px; overflow: hidden; background: var(--bg-2); aspect-ratio: 4 / 3; }
.solution-row-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s; }
.solution-row:hover .solution-row-media img { transform: scale(1.05); }
.solution-row-body { padding: 8px 8px 8px 0; }
.solution-row-body h2 { font-size: 1.6rem; }
.solution-row-body h2 a:hover { color: var(--accent); }
.solution-row-body > p { color: var(--muted); }
.row-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.check-list { list-style: none; padding: 0; margin: 0 0 1rem; display: grid; gap: 8px; }
.check-list.cols-2 { grid-template-columns: 1fr 1fr; }
.check-list li { display: flex; gap: 10px; align-items: flex-start; }
.check-list i { color: var(--teal); margin-top: 3px; }
.empty-state { text-align: center; color: var(--muted); padding: 40px 0; font-size: 1.05rem; }
.empty-state i { display: block; font-size: 2rem; margin-bottom: 8px; }

/* ---------- solution detail ---------- */
.subnav { position: sticky; top: var(--header-h); z-index: 50; background: var(--card); border-bottom: 1px solid var(--line); }
.subnav-inner { display: flex; gap: 6px; overflow-x: auto; scrollbar-width: none; }
.subnav a { padding: 14px 16px; white-space: nowrap; font-weight: 500; color: var(--muted); border-bottom: 3px solid transparent; transition: color .2s, border-color .2s; }
.subnav a:hover, .subnav a.is-current { color: var(--accent); border-color: var(--accent); }
.overview-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: start; }
.compare { display: grid; gap: 16px; }
.compare-col { border-radius: 16px; padding: 24px; }
.compare-col h3 { display: flex; gap: 10px; align-items: center; }
.compare-col ul { margin: 0; padding-left: 1.2em; }
.compare-col li { margin-bottom: 6px; }
.compare-before { background: var(--bg-2); border: 1px solid var(--line); }
.compare-before h3 i { color: var(--red); }
.compare-before li::marker { color: var(--red); }
.compare-after { background: var(--ink); color: #fff; }
.compare-after h3 i { color: var(--accent); }
.compare-after li { color: #DCE3E9; }
.compare-after li::marker { color: var(--accent); }
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 26px; transition: transform .3s, box-shadow .3s, border-color .3s; }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--accent); }
.feature-icon { display: inline-grid; place-items: center; width: 52px; height: 52px; border-radius: 14px; background: var(--accent-soft); color: var(--accent); font-size: 1.45rem; margin-bottom: 16px; transition: background-color .3s, color .3s; }
.feature-card:hover .feature-icon { background: var(--accent); color: var(--ink); }
.feature-card p { color: var(--muted); font-size: .95rem; margin: 0; }
.flow { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.flow li { position: relative; background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 26px 22px; }
.flow li:not(:last-child)::after { content: "\F285"; font-family: "bootstrap-icons"; position: absolute; right: -17px; top: 50%; transform: translateY(-50%); width: 30px; height: 30px; display: grid; place-items: center; border-radius: 50%; background: var(--accent); color: var(--ink); font-size: .8rem; z-index: 1; }
.flow-no { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; background: var(--ink); color: var(--accent); font-weight: 700; margin-bottom: 12px; }
[data-theme="dark"] .flow-no { background: var(--ink-2); }
.flow p { color: var(--muted); font-size: .93rem; margin: 0; }
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.pager-link { border: 1px solid var(--line); border-radius: 16px; padding: 22px 24px; transition: border-color .2s, transform .2s; background: var(--card); }
.pager-link:hover { border-color: var(--accent); transform: translateY(-3px); }
.pager-link small { color: var(--muted); display: block; }
.pager-link strong { font-size: 1.1rem; }
.pager-next { text-align: right; }

/* ---------- about ---------- */
.about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: center; }
.about-grid p { color: var(--muted); }
.about-grid p.body-lg { color: var(--text); }
.about-media { position: relative; }
.about-media img { border-radius: 18px; box-shadow: var(--shadow-lg); aspect-ratio: 4 / 3; object-fit: cover; width: 100%; }
.video-chip { position: absolute; left: 20px; bottom: 20px; border: 0; background: var(--accent); color: var(--ink); font-weight: 600; padding: 10px 18px; border-radius: 999px; box-shadow: var(--shadow-lg); display: inline-flex; gap: 8px; align-items: center; }
.pillar-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.pillar { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 30px; }
.pillar > p { color: var(--muted); }
.pillar-dark { background: var(--ink); color: #fff; border-color: var(--ink); }
.pillar-dark > p { color: #FFC56B; }
.pillar-dark .feature-icon { background: var(--accent); color: var(--ink); }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: .85fr 1.15fr; gap: 40px; align-items: start; }
.contact-info { background: var(--ink); color: #fff; border-radius: 20px; padding: 34px; position: sticky; top: calc(var(--header-h) + 20px); }
.contact-info h2 { font-size: 1.5rem; }
.company-name { font-weight: 600; font-size: 1.08rem; }
.company-name small { color: #9AA8B4; font-weight: 400; }
.contact-info ul { list-style: none; padding: 0; margin: 24px 0; display: grid; gap: 18px; }
.contact-info li { display: flex; gap: 14px; }
.contact-info li > i { width: 42px; height: 42px; flex-shrink: 0; display: grid; place-items: center; border-radius: 12px; background: rgba(255, 255, 255, .08); color: var(--accent); font-size: 1.1rem; }
.contact-info small { display: block; color: #9AA8B4; font-size: .8rem; }
.contact-info a:hover { color: var(--accent); }
.contact-info .muted { color: #9AA8B4; font-size: .85rem; }
.hours-row { display: flex; justify-content: space-between; gap: 20px; }
.contact-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.btn-line { background: #06C755; color: #fff; box-shadow: 0 8px 20px rgba(6, 199, 85, .3); }
.contact-info li > i.line-ic { color: #06C755; }
.copy-mini { color: #9AA8B4; margin-left: 6px; text-decoration: none; }
.copy-mini:hover { color: var(--accent); }
.contact-info .btn-outline { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .3); }
.form-card { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 34px; box-shadow: var(--shadow); }
.form-card h2 { font-size: 1.6rem; margin-bottom: .2em; }
.field { display: block; margin-bottom: 16px; position: relative; }
.field > span { display: block; font-weight: 500; font-size: .92rem; margin-bottom: 6px; }
.field input, .field select, .field textarea {
    width: 100%; font: inherit; color: var(--text); background: var(--bg); border: 1.5px solid var(--line); border-radius: 12px; padding: 12px 14px;
    transition: border-color .2s, box-shadow .2s;
}
.field textarea { resize: vertical; min-height: 140px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.has-error input, .has-error textarea, .has-error select { border-color: var(--red); }
.field-error { display: block; color: var(--red); font-size: .85rem; margin-top: 4px; }
.counter { position: absolute; right: 12px; bottom: 10px; color: var(--muted); font-size: .78rem; pointer-events: none; }
.has-error .counter { bottom: 34px; }
.segmented { border: 0; padding: 0; margin: 0 0 18px; display: flex; flex-wrap: wrap; gap: 8px; }
.segmented legend { font-weight: 500; font-size: .92rem; margin-bottom: 6px; padding: 0; }
.segmented label { cursor: pointer; }
.segmented input { position: absolute; opacity: 0; pointer-events: none; }
.segmented span { display: inline-block; padding: .5em 1.1em; border-radius: 999px; border: 1.5px solid var(--line); font-weight: 500; font-size: .92rem; transition: all .2s; }
.segmented input:checked + span { background: var(--accent); border-color: var(--accent); color: var(--ink); }
.segmented input:focus-visible + span { outline: 3px solid var(--accent); outline-offset: 2px; }
.check { display: flex; gap: 10px; align-items: flex-start; margin: 6px 0 18px; font-size: .92rem; cursor: pointer; }
.check input { width: 18px; height: 18px; margin-top: 4px; accent-color: var(--accent); flex-shrink: 0; }
.check.has-error span { color: var(--red); }
.hp { position: absolute; left: -9999px; }
.alert { background: #FDECEA; color: #A3301F; border-radius: 12px; padding: 12px 16px; margin-bottom: 16px; }
.success-box { text-align: center; padding: 30px 10px; }
.success-box > i { font-size: 3.6rem; color: var(--teal); display: block; margin-bottom: 10px; animation: zoomin .5s; }
.map-wrap { height: 380px; filter: grayscale(.3); }
.map-wrap iframe { width: 100%; height: 100%; border: 0; display: block; }
[data-theme="dark"] .map-wrap { filter: grayscale(.4) invert(.9) hue-rotate(180deg); }

/* ---------- 404 ---------- */
.notfound { text-align: center; }
.notfound-code { display: block; font-size: clamp(5rem, 3rem + 10vw, 10rem); font-weight: 800; line-height: 1; color: var(--accent); }

/* ---------- toast ---------- */
.toast { position: fixed; left: 50%; bottom: 26px; transform: translate(-50%, 30px); background: var(--ink); color: #fff; padding: 12px 22px; border-radius: 999px; box-shadow: var(--shadow-lg); opacity: 0; transition: all .3s; z-index: 3000; }
.toast.is-visible { opacity: 1; transform: translate(-50%, 0); }

/* ---------- admin ---------- */
.admin-body { background: var(--bg-2); min-height: 100vh; }
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.login-card { width: min(420px, 100%); text-align: center; }
.login-card .brand-mark { margin: 0 auto 14px; }
.login-card .field { text-align: left; }
.back-link { display: inline-block; margin-top: 16px; color: var(--muted); font-size: .9rem; }
.admin-bar { background: var(--card); border-bottom: 1px solid var(--line); padding: 14px 0; position: sticky; top: 0; z-index: 10; }
.admin-bar-inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.admin-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.admin-actions form { margin: 0; }
.admin-main { padding: 28px 0 60px; }
.msg { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px; margin-bottom: 14px; }
.msg-unread { border-left: 0; box-shadow: var(--shadow); background: linear-gradient(90deg, var(--accent-soft), var(--card) 30%); }
.msg header { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.msg time { margin-left: auto; color: var(--muted); font-size: .85rem; }
.msg-type { padding: 2px 10px; border-radius: 999px; font-size: .78rem; font-weight: 600; background: var(--bg-2); }
.msg-quote { background: var(--accent); color: var(--ink); }
.msg-support { background: var(--red); color: #fff; }
.msg-sol { color: var(--accent); font-size: .9rem; margin: 6px 0 0; }
.msg-body { margin: 10px 0; white-space: normal; }
.msg footer { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; font-size: .9rem; border-top: 1px solid var(--line); padding-top: 10px; }
.msg footer a { color: var(--accent); }
.msg footer form { margin: 0; display: flex; gap: 12px; }
.spacer { flex: 1; }
.link-btn { border: 0; background: none; color: var(--muted); padding: 0; text-decoration: underline; }
.link-btn.danger { color: var(--red); }

/* ---------- admin: content management ---------- */
.admin-bar-inner { flex-wrap: wrap; }
.admin-tabs { display: flex; gap: 4px; flex-wrap: wrap; }
.admin-tabs a { padding: 8px 14px; border-radius: 999px; font-weight: 500; font-size: .92rem; color: var(--muted); display: inline-flex; gap: 6px; align-items: center; }
.admin-tabs a:hover { color: var(--accent); }
.admin-tabs a.is-active { background: var(--accent-soft); color: var(--accent); }
.admin-tabs .count { background: var(--red); color: #fff; border-radius: 999px; font-size: .72rem; padding: 0 7px; }
.admin-logout { margin: 0; }
.admin-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap; margin-bottom: 20px; }
.admin-head h1 { font-size: 1.6rem; margin: 4px 0; }
.admin-head p { margin: 0; }
.back-link:hover { color: var(--accent); }
.flash { border-radius: 12px; padding: 12px 16px; margin-bottom: 18px; display: flex; gap: 10px; align-items: flex-start; }
.flash-ok { background: #E3F6EE; color: #17694A; }
.flash-err { background: #FDECEA; color: #A3301F; }
.flash-info { background: var(--accent-soft); color: var(--text); }
.tag { display: inline-block; font-size: .74rem; font-weight: 600; padding: 1px 9px; border-radius: 999px; background: var(--bg-2); }
.tag-iot { background: #DFF4F1; color: #12786E; }
.tag-badge { background: var(--accent); color: var(--ink); }
.tag-off { background: #FDECEA; color: #A3301F; }
.sol-table { display: grid; gap: 10px; }
.sol-row { display: grid; grid-template-columns: 96px 1fr auto; gap: 16px; align-items: center; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 10px 14px 10px 10px; }
.sol-row img { width: 96px; height: 64px; object-fit: cover; border-radius: 8px; background: var(--bg-2); }
.sol-row.is-hidden-row { opacity: .6; }
.sol-info { min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.sol-info small { color: var(--muted); }
.sol-info code { font-size: .8rem; }
.sol-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.sol-actions { display: flex; gap: 6px; align-items: center; margin: 0; flex-wrap: wrap; justify-content: flex-end; }
.sol-actions .icon-btn { width: 36px; height: 36px; font-size: 1rem; }
.icon-btn:disabled { opacity: .35; cursor: default; transform: none; }
.icon-btn.danger:hover { border-color: var(--red); color: var(--red); }
.sys-check { margin-top: 26px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; }
.sys-check summary { cursor: pointer; font-weight: 600; }
.sys-check ul { list-style: none; padding: 0; margin: 12px 0 0; display: grid; gap: 6px; }
.sys-check .ok { color: var(--teal); }
.sys-check .bad { color: var(--red); }
.edit-form { display: grid; gap: 20px; }
.edit-form .form-card h2 { font-size: 1.15rem; display: flex; gap: 10px; align-items: center; }
.edit-form .form-card h2 i { color: var(--accent); }
.hint { color: var(--muted); font-size: .82rem; font-weight: 400; }
.field-row-3 { grid-template-columns: repeat(3, 1fr); align-items: end; }
.field input[readonly] { background: var(--bg-2); color: var(--muted); }
.icon-pick { display: flex; gap: 10px; align-items: center; }
.icon-pick > i { width: 44px; height: 44px; flex-shrink: 0; display: grid; place-items: center; border-radius: 12px; background: var(--accent-soft); color: var(--accent); font-size: 1.25rem; }
.icon-pick select { flex: 1; min-width: 0; font: inherit; color: var(--text); background: var(--bg); border: 1.5px solid var(--line); border-radius: 12px; padding: 10px 12px; }
.gal-edit, .new-previews { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; margin-bottom: 16px; }
.gal-item { background: var(--bg-2); border: 1px solid var(--line); border-radius: 12px; padding: 8px; display: grid; gap: 6px; }
.gal-item img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 8px; background: var(--card); }
.gal-item input[type=text], .gal-item input:not([type]), .gal-meta input[type=number] { font: inherit; font-size: .88rem; color: var(--text); background: var(--bg); border: 1px solid var(--line); border-radius: 8px; padding: 6px 8px; width: 100%; }
.gal-meta { display: flex; justify-content: space-between; align-items: center; gap: 8px; font-size: .85rem; }
.gal-meta label { display: flex; align-items: center; gap: 6px; }
.gal-meta input[type=number] { width: 64px; }
.gal-meta .del { color: var(--red); }
.hero-pick { font-size: .85rem; font-weight: 600; display: flex; gap: 6px; align-items: center; }
.gal-item:has(.hero-pick input:checked) { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-soft); }
.gal-item:has(.del input:checked) { opacity: .45; }
.upload-zone { border: 2px dashed var(--line); border-radius: 14px; padding: 26px; text-align: center; transition: border-color .2s, background-color .2s; margin-bottom: 14px; }
.upload-zone.is-drag { border-color: var(--accent); background: var(--accent-soft); }
.upload-zone > i { font-size: 2rem; color: var(--accent); }
.upload-zone p { margin: 6px 0; }
.upload-zone .link-btn { color: var(--accent); cursor: pointer; font-weight: 600; }
.upload-zone .link-btn { border: 0; background: none; font: inherit; padding: 0; }
.upload-summary { border-radius: 10px; padding: 10px 14px; margin-bottom: 12px; background: var(--accent-soft); font-weight: 600; font-size: .92rem; }
.upload-summary.is-error { background: #FDECEA; color: #A3301F; }
.new-item { position: relative; }
.new-remove { position: absolute; top: 14px; right: 14px; width: 30px; height: 30px; border-radius: 50%; border: 0; background: rgba(27, 35, 43, .75); color: #fff; display: grid; place-items: center; }
.new-remove:hover { background: var(--red); }
.rows { display: grid; gap: 10px; margin-bottom: 12px; }
.row-item { display: flex; gap: 10px; align-items: center; }
.row-item > input { font: inherit; color: var(--text); background: var(--bg); border: 1.5px solid var(--line); border-radius: 10px; padding: 10px 12px; min-width: 0; width: 220px; }
.row-item > input.grow { flex: 1; width: auto; }
.row-item .icon-pick { width: 200px; flex-shrink: 0; }
.row-no { width: 32px; height: 32px; flex-shrink: 0; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: var(--accent); font-weight: 700; font-size: .9rem; }
.group-row { grid-template-columns: 80px 1fr auto; }
.group-count { display: flex; flex-direction: column; align-items: center; line-height: 1.1; }
.group-count strong { font-size: 1.5rem; color: var(--accent); }
.group-count small { color: var(--muted); font-size: .75rem; }
.group-rename { display: flex; gap: 8px; align-items: center; margin: 0; flex-wrap: wrap; }
.group-rename input, .group-add-row input { font: inherit; font-weight: 600; color: var(--text); background: var(--bg); border: 1.5px solid var(--line); border-radius: 10px; padding: 8px 12px; min-width: 0; flex: 1; max-width: 320px; }
.group-add { margin-top: 20px; }
.group-add h2 { font-size: 1.15rem; display: flex; gap: 10px; align-items: center; }
.group-add h2 i { color: var(--accent); }
.group-add-row { display: flex; gap: 10px; flex-wrap: wrap; }
.group-add-row input { max-width: 420px; }
.pw-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 20px; align-items: start; }
.pw-wrap { position: relative; }
.pw-wrap input { padding-right: 46px; }
.pw-eye { position: absolute; right: 6px; top: 50%; transform: translateY(-50%); border: 0; background: none; color: var(--muted); width: 36px; height: 36px; border-radius: 8px; }
.pw-eye:hover { color: var(--accent); }
.pw-meter { height: 8px; border-radius: 999px; background: var(--bg-2); overflow: hidden; margin: -6px 0 6px; }
.pw-meter span { display: block; height: 100%; width: 0; border-radius: inherit; transition: width .3s, background-color .3s; }
.pw-meter .lv1 { background: var(--red); }
.pw-meter .lv2 { background: #E0B339; }
.pw-meter .lv3 { background: #6BBF59; }
.pw-meter .lv4 { background: var(--teal); }
.pw-tips h2 { font-size: 1.05rem; display: flex; gap: 8px; align-items: center; margin-top: 4px; }
.pw-tips h2 i { color: var(--accent); }
.pw-tips .bad { color: var(--red); }
.pw-tips code { font-size: .85rem; background: var(--bg-2); padding: 1px 6px; border-radius: 6px; }
@media (max-width: 760px) { .pw-grid { grid-template-columns: 1fr; } }
.save-bar { position: sticky; bottom: 0; display: flex; justify-content: flex-end; gap: 10px; padding: 14px 0; background: linear-gradient(transparent, var(--bg-2) 30%); }
@media (max-width: 760px) {
    .sol-row { grid-template-columns: 72px 1fr; }
    .sol-row img { width: 72px; height: 54px; }
    .sol-actions { grid-column: 1 / -1; justify-content: flex-start; }
    .field-row-3 { grid-template-columns: 1fr; }
    .row-item { flex-wrap: wrap; }
    .row-item > input, .row-item .icon-pick { width: 100%; }
}

/* ---------- about: skills ---------- */
.skills .section-head { margin-bottom: 30px; }
.skills-title { display: flex; align-items: center; gap: 10px; color: #fff; font-size: 1.15rem; margin: 40px 0 16px; }
.skills-title i { display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 10px; background: rgba(242, 140, 40, .15); color: var(--accent); }
.tech-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; }
.tech-grid-hw { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); }
.tech-card {
    background: rgba(255, 255, 255, .04); border: 1px solid rgba(255, 255, 255, .1); border-radius: 16px; padding: 18px 14px 16px;
    display: flex; flex-direction: column; align-items: center; text-align: center; gap: 4px;
    transition: transform .3s, border-color .3s, background-color .3s, box-shadow .3s;
}
.tech-card:hover { transform: translateY(-6px); border-color: var(--accent); background: rgba(242, 140, 40, .08); box-shadow: 0 16px 30px rgba(0, 0, 0, .3); }
.tech-logo { width: 72px; height: 72px; border-radius: 18px; background: #fff; display: grid; place-items: center; margin-bottom: 8px; box-shadow: 0 6px 16px rgba(0, 0, 0, .25); transition: transform .4s; }
.tech-logo img { width: 46px; height: 46px; object-fit: contain; }
.tech-card:hover .tech-logo { transform: rotate(-6deg) scale(1.06); }
.tech-card-board .tech-logo { width: 120px; }
.tech-card-board .tech-logo img { width: 104px; height: 66px; }
.tech-card strong { color: #fff; font-size: 1.02rem; }
.tech-card small { color: #9AA8B4; font-size: .82rem; line-height: 1.45; }

/* flow diagram */
.flowmap {
    display: grid; grid-template-columns: minmax(200px, 1.3fr) 60px minmax(150px, 1fr) minmax(70px, .8fr) minmax(130px, .9fr) minmax(70px, .8fr) minmax(130px, .9fr);
    align-items: center; background: rgba(255, 255, 255, .03); border: 1px solid rgba(255, 255, 255, .08); border-radius: 20px; padding: 26px; margin-bottom: 22px;
}
.fm-devices { display: grid; gap: 8px; }
.fm-device { position: relative; display: flex; gap: 10px; align-items: center; background: var(--ink-2); border: 1px solid rgba(255, 255, 255, .1); border-radius: 12px; padding: 8px 12px; color: #fff; font-size: .9rem; line-height: 1.25; }
.fm-device i { color: var(--accent); font-size: 1.15rem; }
.fm-device small { display: block; color: #8FD3C9; font-size: .74rem; }
.fm-device::after { content: ""; position: absolute; left: 100%; top: 50%; width: 20px; height: 2px; background: repeating-linear-gradient(90deg, var(--accent) 0 6px, transparent 6px 12px); background-size: 24px 2px; animation: flowx 1s linear infinite; }
.fm-bus { align-self: stretch; margin: 22px 0 22px 20px; border-left: 2px dashed rgba(242, 140, 40, .6); position: relative; }
.fm-bus::after { content: ""; position: absolute; right: -2px; top: 50%; width: 100%; height: 2px; }
.fm-node { position: relative; background: var(--ink-2); border: 1px solid rgba(255, 255, 255, .12); border-radius: 16px; padding: 18px 12px; text-align: center; color: #fff; display: flex; flex-direction: column; align-items: center; gap: 4px; }
.fm-node i { font-size: 1.8rem; color: var(--accent); }
.fm-node strong { font-size: 1rem; }
.fm-node small { color: #9AA8B4; font-size: .78rem; line-height: 1.4; }
.fm-gateway { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(242, 140, 40, .12), 0 0 30px rgba(242, 140, 40, .2); }
.fm-gateway::before { content: ""; position: absolute; right: 100%; top: 50%; width: 40px; height: 2px; background: repeating-linear-gradient(90deg, var(--accent) 0 6px, transparent 6px 12px); background-size: 24px 2px; animation: flowx 1s linear infinite; }
.fm-dash { border-color: var(--teal); }
.fm-dash i { color: var(--teal); }
.fm-link { position: relative; height: 2px; background: repeating-linear-gradient(90deg, var(--teal) 0 8px, transparent 8px 16px); background-size: 32px 2px; animation: flowx 1.2s linear infinite; }
.fm-link span { position: absolute; left: 50%; bottom: 8px; transform: translateX(-50%); white-space: nowrap; font-size: .72rem; color: #8FD3C9; font-weight: 600; }
.fm-link::after { content: ""; position: absolute; right: -2px; top: -4px; border: 5px solid transparent; border-left: 7px solid var(--teal); border-right: 0; }
.fm-bus.fm-link, .fm-bus { height: auto; background: none; animation: none; }
.fm-bus::after { display: none; }
@keyframes flowx { to { background-position: 24px 0; } }
@keyframes flowy { to { background-position: 0 24px; } }

/* protocol cards */
.proto-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.proto-card { background: rgba(255, 255, 255, .04); border: 1px solid rgba(255, 255, 255, .1); border-radius: 16px; padding: 18px; transition: transform .3s, border-color .3s; }
.proto-card:hover { transform: translateY(-5px); border-color: var(--teal); }
.proto-icon { width: 46px; height: 46px; color: var(--accent); padding: 6px; border-radius: 12px; background: rgba(242, 140, 40, .12); margin-bottom: 10px; transition: color .3s, background-color .3s; }
.proto-card:hover .proto-icon { color: #fff; background: var(--teal); }
.proto-card strong { display: block; color: #fff; font-size: 1.02rem; margin-bottom: 4px; }
.proto-card p { color: #B8C4CE; font-size: .88rem; margin-bottom: 8px; }
.proto-card small { color: #8FD3C9; font-size: .8rem; }
@media (max-width: 1100px) {
    .proto-grid { grid-template-columns: repeat(2, 1fr); }
    .flowmap { grid-template-columns: 1fr; gap: 0; padding: 20px; }
    .fm-device::after, .fm-gateway::before { display: none; }
    .fm-bus { height: 34px; margin: 0 auto; width: 2px; border: 0; background: repeating-linear-gradient(180deg, var(--accent) 0 6px, transparent 6px 12px); background-size: 2px 24px; animation: flowy 1s linear infinite; }
    .fm-link { width: 2px; height: 44px; margin: 0 auto; background: repeating-linear-gradient(180deg, var(--teal) 0 8px, transparent 8px 16px); background-size: 2px 24px; animation: flowy 1.2s linear infinite; }
    .fm-link span { left: 14px; bottom: auto; top: 50%; transform: translateY(-50%); }
    .fm-link::after { right: auto; left: -4px; top: auto; bottom: -2px; border: 5px solid transparent; border-top: 7px solid var(--teal); border-bottom: 0; }
    .fm-devices { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); }
}
@media (max-width: 600px) {
    .proto-grid { grid-template-columns: 1fr; }
    .tech-grid { grid-template-columns: repeat(2, 1fr); }
    .tech-grid-hw { grid-template-columns: 1fr 1fr; }
    .tech-card-board .tech-logo { width: 100%; max-width: 120px; }
}

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
    .solution-grid { grid-template-columns: repeat(2, 1fr); }
    .gallery-grid { grid-template-columns: repeat(3, 1fr); }
    .process { grid-template-columns: repeat(3, 1fr); }
    .process::before { display: none; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .solution-row { grid-template-columns: 320px 1fr; }
    .dropdown-panel { width: 480px; }
}
@media (max-width: 1180px) {
    :root { --header-h: 64px; }
    /* backdrop-filter ทำให้ position:fixed ของเมนูอิงกับ header แทนหน้าจอ จึงปิดบนมือถือ */
    .site-header { backdrop-filter: none; -webkit-backdrop-filter: none; background: var(--bg); }
    .menu-toggle { display: inline-grid; }
    .nav-cta { display: none; }
    .main-nav {
        position: fixed; inset: var(--header-h) 0 0 0; flex-direction: column; align-items: stretch; gap: 0; padding: 16px;
        background: var(--bg); overflow-y: auto; margin: 0;
        opacity: 0; visibility: hidden; transform: translateY(-12px); transition: opacity .25s ease, transform .25s ease, visibility .25s;
    }
    .main-nav.is-open { opacity: 1; visibility: visible; transform: none; }
    .main-nav > a, .nav-dropdown > a { padding: 14px 12px; border-radius: 10px; font-size: 1.05rem; display: block; }
    .nav-dropdown > a i { display: none; }
    .dropdown-panel { position: static; transform: none; width: auto; opacity: 1; visibility: visible; box-shadow: none; border: 0; grid-template-columns: 1fr; padding: 0 0 8px 8px; background: transparent; }
    .nav-dropdown:hover .dropdown-panel { transform: none; }
    .mega-panel { width: auto; padding: 0 0 8px 8px; }
    .mega-cols { grid-template-columns: 1fr; gap: 10px; }
    .mega-col + .mega-col { border-left: 0; padding-left: 0; }
    .mega-all { justify-content: flex-start; border-top: 0; margin-top: 0; }
    .nav-actions { margin-left: auto; }
}
@media (max-width: 920px) {
    .hero-grid, .why-grid, .video-grid, .faq-grid, .overview-grid, .about-grid, .skills-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
    .hero { min-height: 0; }
    .hero-grid { padding: 56px 0 80px; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .stat:nth-child(2) { border-right: 0; }
    .stat:nth-child(-n+2) { border-bottom: 1px solid rgba(255, 255, 255, .08); }
    .feature-grid, .pillar-grid { grid-template-columns: 1fr 1fr; }
    .flow { grid-template-columns: 1fr 1fr; }
    .flow li::after { display: none; }
    .solution-row { grid-template-columns: 1fr; }
    .contact-info { position: static; }
    .topbar-hours { display: none; }
}
@media (max-width: 600px) {
    body { font-size: 15px; }
    .topbar { display: none; }
    .admin-pill span { display: none; }
    .admin-pill { width: 42px; padding: 0; justify-content: center; }
    .login-btn span { display: none; }
    .login-btn { width: 42px; padding: 0; justify-content: center; }
    .brand-text small { display: none; }
    .solution-grid, .feature-grid, .pillar-grid, .flow, .why-list, .check-list.cols-2, .field-row, .pager { grid-template-columns: 1fr; }
    .gallery-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
    .process { grid-template-columns: 1fr 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .live-tile strong { font-size: 1.3rem; }
    .why-media { padding: 0 20px 40px 0; }
    .why-badge { left: 0; }
    .lightbox, .video-modal { padding: 60px 10px; }
    .lb-prev, .lb-next { top: auto; bottom: 16px; transform: none; }
    .lb-prev { left: calc(50% - 60px); }
    .lb-next { right: calc(50% - 60px); }
    .form-card, .contact-info { padding: 24px; }
    .pager-next { text-align: left; }
    .cta-actions .btn { flex: 1; }
}
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
    .reveal { opacity: 1; transform: none; }
}