/*
Theme Name: TEC-HUB
Theme URI: https://tec-hub.com.sg
Author: TEC-HUB Private Limited
Description: Custom one-page theme for TEC-HUB — cleanroom consumables, ESD control, IoT monitoring and facility ironmongery MRO.
Version: 1.0
Requires at least: 6.0
Requires PHP: 7.4
Text Domain: tec-hub
*/

:root{
  --navy:#0a1c3d; --navy2:#0f2a5c; --steel:#4a5a72; --steel-l:#eef1f5;
  --accent:#00c2d1; --text:#1c2733; --muted:#5b6b7f; --card:#ffffff; --bg:#f5f7fa;
  --border:#dbe2ea; --radius:10px;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px); padding-bottom:env(safe-area-inset-bottom,0px);
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --bg:#0b1220; --card:#121b2e; --text:#e7edf5; --muted:#9fb0c3; --border:#22314a; --steel-l:#111b2c;
  }
}
:root[data-theme="dark"]{
  --bg:#0b1220; --card:#121b2e; --text:#e7edf5; --muted:#9fb0c3; --border:#22314a; --steel-l:#111b2c;
}
html{scroll-padding-top:70px;-webkit-text-size-adjust:100%;}
*{box-sizing:border-box;}
body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Manrope,Arial,sans-serif;line-height:1.55;}
h1,h2,h3{font-family:Inter,Manrope,-apple-system,sans-serif;font-weight:700;letter-spacing:-0.01em;margin:0 0 .5em;}
a{color:inherit;}
img{max-width:100%;}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px;}
.overflow-x{overflow-x:auto;}

/* NAV */
header{position:sticky;top:0;z-index:50;background:var(--navy);padding-top:env(safe-area-inset-top,0px);box-shadow:0 2px 10px rgba(0,0,0,.15);}
.navbar{display:flex;align-items:center;justify-content:space-between;max-width:1120px;margin:0 auto;padding:14px 20px;}
.logo{color:#fff;font-weight:800;font-size:1.25rem;letter-spacing:.02em;display:flex;align-items:center;gap:8px;background:#fff;padding:6px 12px;border-radius:6px;}
.logo .dot{width:8px;height:8px;background:var(--accent);border-radius:2px;display:inline-block;}
nav ul{list-style:none;display:flex;gap:26px;margin:0;padding:0;}
nav a{color:#cfe3f5;text-decoration:none;font-size:.95rem;font-weight:600;}
nav a:hover{color:var(--accent);}
.navcta{background:var(--accent);color:#05262a;padding:9px 16px;border-radius:6px;font-weight:700;font-size:.9rem;text-decoration:none;white-space:nowrap;}
#navToggle{display:none;background:none;border:0;color:#fff;font-size:1.5rem;cursor:pointer;}
@media (max-width:820px){
  nav ul{position:fixed;top:60px;left:0;right:0;background:var(--navy2);flex-direction:column;gap:0;padding:10px 0;transform:translateY(-120%);transition:transform .25s ease;}
  nav ul.open{transform:translateY(0);}
  nav ul li{border-top:1px solid rgba(255,255,255,.08);}
  nav a{display:block;padding:14px 24px;}
  .navcta{margin:14px 24px;display:inline-block;}
  #navToggle{display:block;}
}

/* HERO */
.hero{background:radial-gradient(circle at 80% 20%, var(--navy2), var(--navy) 60%);color:#fff;padding:80px 0 60px;position:relative;overflow:hidden;}
.hero::after{content:"";position:absolute;right:-80px;top:-80px;width:340px;height:340px;border-radius:50%;border:2px solid rgba(0,194,209,.25);}
.hero::before{content:"";position:absolute;right:20px;top:60px;width:220px;height:220px;border-radius:50%;border:2px solid rgba(0,194,209,.4);}
.hero .wrap{position:relative;z-index:1;}
.eyebrow{color:var(--accent);font-weight:700;letter-spacing:.08em;text-transform:uppercase;font-size:.8rem;}
.hero h1{font-size:clamp(1.9rem,4vw,3rem);max-width:780px;margin-top:10px;}
.hero p{color:#c6d5e5;max-width:620px;font-size:1.05rem;}
.hero-ctas{display:flex;gap:14px;margin-top:26px;flex-wrap:wrap;}
.btn{padding:12px 22px;border-radius:6px;font-weight:700;text-decoration:none;font-size:.95rem;display:inline-block;}
.btn-primary{background:var(--accent);color:#05262a;}
.btn-outline{border:1px solid rgba(255,255,255,.4);color:#fff;}

.trustbar{background:var(--navy2);color:#cfe3f5;padding:16px 0;font-size:.85rem;}
.trustbar .wrap{display:flex;gap:32px;flex-wrap:wrap;justify-content:center;text-align:center;}
.trustbar b{color:#fff;}

section{padding:64px 0;}
.section-head{max-width:680px;margin:0 auto 36px;text-align:center;}
.section-head .eyebrow{color:var(--accent);}
.section-head h2{color:var(--text);font-size:clamp(1.5rem,3vw,2.1rem);}
.section-head p{color:var(--muted);}

/* PILLARS */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
@media (max-width:820px){.grid3{grid-template-columns:1fr;}}
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:26px;}
.card .icon{width:46px;height:46px;border-radius:10px;background:var(--navy);color:var(--accent);display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:14px;}
.card h3{font-size:1.1rem;}
.card p{color:var(--muted);font-size:.94rem;}
.card a.more{color:var(--navy2);font-weight:700;font-size:.88rem;text-decoration:none;}
:root[data-theme="dark"] .card a.more{color:var(--accent);}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .card a.more{color:var(--accent);}}

.whystrip{background:var(--steel-l);}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center;}
@media (max-width:820px){.stats{grid-template-columns:1fr 1fr;}}
.stats .num{font-size:1.7rem;font-weight:800;color:var(--navy2);}
:root[data-theme="dark"] .stats .num{color:var(--accent);}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .stats .num{color:var(--accent);}}
.stats .lbl{color:var(--muted);font-size:.85rem;}

/* ABOUT */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:start;}
@media (max-width:820px){.about-grid{grid-template-columns:1fr;}}
.about-grid p{color:var(--muted);}
.sector-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;}
.sector-grid div{background:var(--card);border:1px solid var(--border);border-radius:8px;padding:12px 14px;font-weight:600;font-size:.9rem;}
.quote-box{border-left:3px solid var(--accent);padding:14px 18px;background:var(--card);border-radius:0 8px 8px 0;color:var(--muted);font-style:italic;margin-top:18px;}

/* PRODUCTS */
.tabs{display:flex;gap:10px;justify-content:center;margin-bottom:28px;flex-wrap:wrap;}
.tab-btn{border:1px solid var(--border);background:var(--card);padding:10px 18px;border-radius:999px;font-weight:700;font-size:.9rem;cursor:pointer;color:var(--text);}
.tab-btn.active{background:var(--navy);color:#fff;border-color:var(--navy);}
.tab-panel{display:none;}
.tab-panel.active{display:block;}
.cat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
@media (max-width:820px){.cat-grid{grid-template-columns:1fr;}}
.cat-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:20px 22px;}
.cat-card h4{margin:0 0 8px;font-size:1rem;color:var(--navy2);}
:root[data-theme="dark"] .cat-card h4{color:var(--accent);}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .cat-card h4{color:var(--accent);}}
.cat-card ul{margin:0;padding-left:18px;color:var(--muted);font-size:.88rem;}
.cat-card ul li{margin-bottom:3px;}
.position-tag{display:inline-block;font-size:.68rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;background:var(--steel-l);color:var(--steel);padding:3px 9px;border-radius:999px;margin-bottom:10px;}

/* SERVICES */
.service-block{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center;padding:34px 0;border-top:1px solid var(--border);}
@media (max-width:820px){.service-block{grid-template-columns:1fr;}}
.service-block:first-of-type{border-top:none;}
.service-visual{background:linear-gradient(135deg,var(--navy),var(--navy2));border-radius:var(--radius);min-height:220px;color:#fff;padding:24px;display:flex;flex-direction:column;justify-content:center;gap:12px;}
.metric-row{display:flex;gap:10px;flex-wrap:wrap;}
.metric-pill{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);padding:8px 12px;border-radius:8px;font-size:.8rem;}
.service-text h3{font-size:1.4rem;}
.service-text p{color:var(--muted);}
.checklist{list-style:none;padding:0;margin:16px 0;}
.checklist li{padding-left:22px;position:relative;margin-bottom:8px;color:var(--muted);font-size:.93rem;}
.checklist li::before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:800;}

/* CONTACT */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;}
@media (max-width:820px){.contact-grid{grid-template-columns:1fr;}}
.field{margin-bottom:14px;}
.field label{display:block;font-size:.85rem;font-weight:700;margin-bottom:6px;}
.field input,.field select,.field textarea{width:100%;padding:11px 12px;border:1px solid var(--border);border-radius:6px;background:var(--card);color:var(--text);font-size:.95rem;font-family:inherit;}
.field textarea{min-height:100px;resize:vertical;}
.info-list{list-style:none;padding:0;margin:0;}
.info-list li{margin-bottom:14px;color:var(--muted);font-size:.94rem;}
.info-list b{display:block;color:var(--text);font-size:.85rem;text-transform:uppercase;letter-spacing:.04em;}

footer{background:var(--navy);color:#9fb0c3;padding:30px 0;font-size:.85rem;text-align:center;}
footer b{color:#fff;}
.formnote{font-size:.78rem;color:var(--muted);margin-top:8px;}

/* INDUSTRIES */
.ind-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
@media (max-width:900px){.ind-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:520px){.ind-grid{grid-template-columns:1fr;}}
.ind-card{border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);background:var(--card);}
.ind-art{height:130px;display:flex;align-items:center;justify-content:center;}
.ind-art svg{width:72px;height:72px;}
.ind-label{padding:12px 14px;font-weight:700;font-size:.92rem;color:var(--text);border-top:1px solid var(--border);}
.ind-sub{padding:0 14px 14px;color:var(--muted);font-size:.8rem;}

.photo-row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:28px;}
@media (max-width:820px){.photo-row{grid-template-columns:1fr;}}
.photo-card{border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);background:var(--card);}
.photo-card img{width:100%;display:block;}
.photo-cap{padding:12px 16px;font-size:.85rem;color:var(--muted);}

/* CHAT WIDGET */
.chat-fab{position:fixed;bottom:20px;right:20px;z-index:200;width:58px;height:58px;border-radius:50%;background:var(--accent);color:#05262a;border:none;cursor:pointer;box-shadow:0 6px 18px rgba(0,0,0,.25);display:flex;align-items:center;justify-content:center;font-size:1.5rem;}
.chat-fab:hover{filter:brightness(1.05);}
.chat-panel{position:fixed;bottom:90px;right:20px;z-index:200;width:360px;max-width:92vw;height:500px;max-height:75vh;background:var(--card);border:1px solid var(--border);border-radius:14px;box-shadow:0 12px 34px rgba(0,0,0,.3);display:none;flex-direction:column;overflow:hidden;}
.chat-panel.open{display:flex;}
.chat-head{background:var(--navy);color:#fff;padding:14px 16px;display:flex;align-items:center;justify-content:space-between;}
.chat-head b{font-size:.95rem;}
.chat-head span{display:block;font-size:.72rem;color:#9fb0c3;}
.chat-close{background:none;border:none;color:#fff;font-size:1.1rem;cursor:pointer;opacity:.8;}
.chat-body{flex:1;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px;background:var(--bg);}
.chat-msg{max-width:84%;padding:9px 12px;border-radius:12px;font-size:.87rem;line-height:1.4;}
.chat-msg.bot{align-self:flex-start;background:var(--card);border:1px solid var(--border);border-bottom-left-radius:4px;}
.chat-msg.user{align-self:flex-end;background:var(--navy);color:#fff;border-bottom-right-radius:4px;}
.chat-msg.typing{align-self:flex-start;color:var(--muted);font-style:italic;background:none;border:none;padding:0 4px;}
.chat-whatsapp{align-self:flex-start;max-width:90%;background:#e9fbf3;border:1px solid #b6ebd3;border-radius:12px;padding:10px 12px;font-size:.83rem;color:#0a3d2a;}
:root[data-theme="dark"] .chat-whatsapp{background:#0d2a20;border-color:#1c4a35;color:#bdf0d6;}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) .chat-whatsapp{background:#0d2a20;border-color:#1c4a35;color:#bdf0d6;}}
.chat-whatsapp a{color:inherit;font-weight:800;text-decoration:underline;}
.chat-chips{display:flex;gap:6px;flex-wrap:wrap;padding:0 14px 10px;}
.chat-chip{border:1px solid var(--border);background:var(--card);color:var(--text);border-radius:999px;padding:6px 11px;font-size:.76rem;cursor:pointer;}
.chat-chip:hover{border-color:var(--accent);}
.chat-input-row{display:flex;gap:8px;padding:10px;border-top:1px solid var(--border);background:var(--card);}
.chat-input-row input{flex:1;border:1px solid var(--border);border-radius:8px;padding:9px 11px;font-size:.85rem;background:var(--bg);color:var(--text);}
.chat-input-row button{background:var(--navy);color:#fff;border:none;border-radius:8px;padding:0 14px;font-weight:700;cursor:pointer;font-size:.85rem;}
.chat-input-row button:disabled{opacity:.5;cursor:not-allowed;}

.hero .wrap{display:grid;grid-template-columns:1.15fr .95fr;gap:40px;align-items:center;}
@media (max-width:900px){.hero .wrap{grid-template-columns:1fr;}}
.hero-photo{position:relative;}
.hero-photo img{width:100%;height:auto;display:block;border-radius:14px;box-shadow:0 20px 50px rgba(0,0,0,.35);border:1px solid rgba(255,255,255,.15);}
.hero-photo .cap{position:absolute;left:14px;bottom:14px;background:rgba(10,28,61,.75);backdrop-filter:blur(4px);color:#fff;font-size:.72rem;padding:6px 10px;border-radius:6px;border:1px solid rgba(255,255,255,.2);}
.ind-photo{border-radius:var(--radius);overflow:hidden;margin-bottom:28px;position:relative;border:1px solid var(--border);}
.ind-photo img{width:100%;height:auto;display:block;max-height:360px;object-fit:contain;background:#0a1c3d;}
.ind-photo .cap{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(0deg,rgba(10,28,61,.85),transparent);color:#fff;padding:26px 20px 12px;font-size:.85rem;}

.tri-photo{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:32px;}
@media (max-width:820px){.tri-photo{grid-template-columns:1fr;}}
.tri-photo figure{margin:0;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);position:relative;background:var(--card);}
.tri-photo img{width:100%;height:260px;object-fit:contain;display:block;background:var(--steel-l);}
.tri-photo figcaption{padding:12px 14px;font-size:.82rem;color:var(--muted);}
.tri-photo figcaption b{display:block;color:var(--text);font-size:.9rem;margin-bottom:2px;}