/*
Theme Name: PDI Reference Match V4.5
Theme URI: https://plantdesigninstitute.com/
Author: Plant Design Institute
Description: Custom dark navy, electric blue and gold engineering training portal matching the approved PDI visual reference.
Version: 4.5.0
Requires at least: 6.4
Requires PHP: 8.0
Text Domain: pdi-reference
*/
:root{--navy:#031b43;--navy2:#062b60;--blue:#087df0;--cyan:#19c8ff;--gold:#ffd21a;--ink:#071d42;--muted:#50627d;--pale:#edf5ff;--white:#fff}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#edf4fc;color:var(--ink);font:15px/1.5 Arial,Helvetica,sans-serif}a{text-decoration:none;color:inherit}img{max-width:100%;height:auto}.pdi-wrap{width:min(1440px,calc(100% - 42px));margin:auto}
.pdi-top{background:#03183a;color:#fff;border-bottom:1px solid #0a5aa5;font-size:13px}.pdi-top .pdi-wrap{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:14px}.pdi-contact,.pdi-social{display:flex;align-items:center;gap:17px}.pdi-top a{color:#fff}.pdi-social a{font-weight:900;font-size:15px}.pdi-social .yt{color:#ff3b3b}.pdi-social .wa{color:#20d66b}.pdi-login{background:var(--gold);color:#061b3b!important;padding:6px 14px;border-radius:8px;font-weight:900}
.pdi-header{position:sticky;top:0;z-index:50;background:linear-gradient(110deg,#031735,#052b61 65%,#031735);border-bottom:2px solid #078eff;box-shadow:0 5px 22px #00132f80}.pdi-headrow{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:16px}.pdi-brand{display:flex;align-items:center;gap:12px;color:white;min-width:330px}.pdi-mark{width:72px;height:65px;display:grid;place-items:center;border-radius:18px 18px 25px 25px;background:linear-gradient(145deg,#fff,#b8d9ff 55%,#0b5fa9);border:3px solid #e8b91b;box-shadow:0 0 16px #00aaff88;color:#062451;font-size:27px;font-weight:1000;font-style:italic;transform:skew(-5deg)}.pdi-brand strong{display:block;font-size:22px;line-height:1.1;letter-spacing:.2px}.pdi-brand strong span{color:var(--gold)}.pdi-brand small{display:block;color:#d5e8ff;font-size:11px;margin-top:4px}.pdi-nav{display:flex;align-items:center;gap:4px;color:white}.pdi-nav a{padding:11px 10px;border-radius:9px;font-weight:800;font-size:13px;white-space:nowrap}.pdi-nav a:hover,.pdi-nav a.current{background:var(--gold);color:#071d42}.pdi-nav .app{background:linear-gradient(120deg,#ffdf27,#ffae13);color:#061b3b;border:1px solid #fff2a0;margin-left:5px;box-shadow:0 0 12px #ffc40066}.pdi-menu-toggle{display:none;background:transparent;border:1px solid #55bfff;color:#fff;border-radius:8px;padding:9px 12px;font-size:20px}
.pdi-hero{position:relative;isolation:isolate;overflow:hidden;background:#031b43;border-bottom:3px solid #13aaff;min-height:340px}.pdi-hero:before{content:"";position:absolute;inset:0;z-index:-2;background:url("assets/hero-plant-engineer.jpg") center right/cover no-repeat}.pdi-hero:after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,#03183d 0%,#03183df2 30%,#03183d88 53%,#03183d00 78%),linear-gradient(0deg,#001c47aa,transparent 30%)}.pdi-hero-inner{min-height:340px;display:flex;align-items:center}.pdi-hero-copy{max-width:590px;padding:30px 0;color:#fff}.pdi-kicker{font-size:12px;font-weight:900;letter-spacing:3px;color:#d9ecff}.pdi-hero h1{font-size:clamp(34px,4.2vw,58px);line-height:.99;margin:10px 0 14px;letter-spacing:-1.5px;text-transform:none}.pdi-hero h1 span{display:block;color:var(--gold);font-style:italic}.pdi-hero-lead{font-size:18px;font-weight:800;margin:0 0 10px}.pdi-checks{list-style:none;padding:0;margin:8px 0 17px}.pdi-checks li{margin:2px 0;font-weight:700}.pdi-checks li:before{content:"✓";display:inline-grid;place-items:center;width:18px;height:18px;border-radius:50%;background:var(--gold);color:#09224b;font-weight:1000;margin-right:8px}.pdi-actions{display:flex;gap:12px;flex-wrap:wrap}.pdi-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 20px;border-radius:10px;background:linear-gradient(120deg,#ffe52d,#ffb900);color:#071d42;font-weight:1000;border:1px solid #fff09b;box-shadow:0 3px 14px #ffc40055}.pdi-btn.outline{background:#052d63;color:#fff;border:2px solid #42bfff;box-shadow:0 0 12px #009dff66}
.pdi-software{background:linear-gradient(180deg,#031a40,#052b60);border-bottom:3px solid #159eff;box-shadow:0 7px 20px #082b5260;padding:8px 0 10px;overflow:hidden}.pdi-software-row{display:flex;align-items:stretch;gap:8px}.pdi-software-title{flex:0 0 220px;border:1px solid #159eff;border-radius:13px;padding:9px 14px;color:white;font-size:19px;font-weight:1000;line-height:1.15;display:flex;align-items:center;justify-content:space-between;box-shadow:inset 0 0 15px #00aaff22}.pdi-software-title span{color:var(--gold);font-size:30px}.pdi-software-window{overflow:hidden;flex:1}.pdi-software-track{display:flex;gap:9px;width:max-content;animation:pdi-marquee 34s linear infinite}.pdi-software-window:hover .pdi-software-track{animation-play-state:paused}.pdi-software-chip{width:105px;height:70px;border:1px solid #16b9ff;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(145deg,#0b3973,#031a40);color:#fff;font-weight:1000;font-size:16px;box-shadow:inset 0 0 12px #009dff44,0 0 8px #009dff44;white-space:nowrap}.pdi-software-chip b{font-size:23px;color:#fff}.pdi-software-chip:hover{border-color:var(--gold);transform:translateY(-2px)}@keyframes pdi-marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.pdi-benefits{background:linear-gradient(90deg,#d9eaff,#fff,#d9eaff);border-bottom:1px solid #b9d6f6}.pdi-benefit-row{display:grid;grid-template-columns:repeat(6,1fr);padding:13px 0}.pdi-benefit{display:flex;align-items:center;justify-content:center;gap:10px;border-right:1px solid #8db8e8;font-weight:900;font-size:13px;line-height:1.2;padding:0 8px}.pdi-benefit:last-child{border:0}.pdi-benefit b{font-size:28px;color:#092d65}
.pdi-main{padding:20px 0 26px}.pdi-home-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(390px,.85fr);gap:18px}.pdi-panel{background:#f9fcff;border:1px solid #d2e3f6;border-radius:18px;padding:15px;box-shadow:0 5px 18px #143d6812}.pdi-section-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:0 0 13px}.pdi-section-head h2{margin:0;font-size:22px;font-weight:1000;color:#071f4b}.pdi-section-head h2:before{content:"";display:inline-block;width:7px;height:25px;border-radius:6px;background:#ffbd00;margin-right:10px;vertical-align:-5px}.pdi-section-head>a{color:#0647c8;font-weight:900;font-size:13px;white-space:nowrap}
.pdi-course-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:11px}.pdi-course-card{background:#fff;border:1px solid #cbdff5;border-radius:13px;overflow:hidden;box-shadow:0 4px 12px #0b32631b;transition:.2s}.pdi-course-card:hover{transform:translateY(-4px);box-shadow:0 9px 20px #0b326333}.pdi-course-art{height:108px;background:linear-gradient(135deg,#06275c,#0a7bd4);display:flex;align-items:center;justify-content:center;color:#fff;font-size:22px;font-weight:1000;text-align:center;padding:8px}.pdi-course-art img{width:100%;height:100%;object-fit:cover}.pdi-course-info{padding:9px}.pdi-course-info h3{font-size:14px;line-height:1.2;margin:0 0 8px;min-height:34px}.pdi-course-meta{display:flex;justify-content:space-between;gap:4px;font-size:11px;font-weight:800;color:#263c5d;margin-bottom:8px}.pdi-enquire-row{display:flex;align-items:center;justify-content:space-between;gap:5px}.pdi-enquire-row strong{color:#e22e20;font-size:16px}.pdi-enquire-row a{background:linear-gradient(120deg,#ffe32a,#ffb900);border-radius:8px;padding:7px 9px;font-size:11px;font-weight:1000;color:#061b3b}
.pdi-article-list{display:grid;gap:0}.pdi-article-row{display:grid;grid-template-columns:90px minmax(0,1fr) 25px;gap:10px;align-items:center;padding:9px 0;border-bottom:1px solid #d7e6f5}.pdi-article-row:last-child{border:0}.pdi-article-thumb{height:58px;border-radius:8px;overflow:hidden;background:#d7eaff}.pdi-article-thumb img{width:100%;height:100%;object-fit:cover}.pdi-article-row h3{font-size:13px;line-height:1.25;margin:0 0 5px}.pdi-article-meta{font-size:11px;color:#3c5271;font-weight:700}.pdi-article-meta span{display:inline-block;margin-left:8px;color:#0647c8;background:#e3efff;padding:3px 7px;border-radius:12px}.pdi-arrow{width:25px;height:25px;border-radius:50%;background:#e6f0fc;display:grid;place-items:center;color:#08234f;font-size:20px;font-weight:900}
.pdi-stats{background:linear-gradient(110deg,#031a43,#073a7a,#031a43);color:white;border-top:3px solid #13aaff;border-bottom:3px solid #13aaff;position:relative;overflow:hidden}.pdi-stats-row{display:grid;grid-template-columns:1.4fr repeat(5,1fr);align-items:center;min-height:92px}.pdi-stat{padding:12px 15px;border-right:1px solid #4a8ec7;display:flex;align-items:center;gap:10px;font-weight:900}.pdi-stat:last-child{border:0}.pdi-stat b{font-size:27px;color:var(--gold)}.pdi-stat small{display:block;color:#d7e9ff;font-weight:600}
.pdi-footer{background:#031733;color:#dcecff;padding:30px 0 18px}.pdi-footer-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:25px}.pdi-footer h3,.pdi-footer h4{color:#fff;margin:0 0 10px}.pdi-footer a{display:block;margin:6px 0;font-size:13px}.pdi-footer a:hover{color:var(--gold)}.pdi-copy{border-top:1px solid #244b75;margin-top:20px;padding-top:13px;font-size:12px;display:flex;justify-content:space-between}
.pdi-page-hero{background:linear-gradient(110deg,#031a43,#07529a);color:white;padding:38px 0}.pdi-page-hero h1{margin:0;font-size:34px}.pdi-page-content{background:#fff;border:1px solid #d7e5f5;border-radius:14px;padding:25px;margin:25px auto;max-width:1100px}.pdi-form{display:grid;gap:12px;max-width:700px}.pdi-form input,.pdi-form select,.pdi-form textarea{width:100%;padding:13px;border:1px solid #c9d9ec;border-radius:8px;font:inherit}.pdi-form textarea{min-height:120px}.pdi-form button{cursor:pointer}.pdi-archive-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
@media(max-width:1100px){.pdi-brand{min-width:260px}.pdi-brand strong{font-size:18px}.pdi-nav a{font-size:11px;padding:9px 7px}.pdi-home-grid{grid-template-columns:1fr}.pdi-course-grid{grid-template-columns:repeat(4,1fr)}}
@media(max-width:760px){.pdi-wrap{width:min(100% - 24px,600px)}.pdi-top .pdi-wrap{padding:7px 0;flex-wrap:wrap;justify-content:center;text-align:center}.pdi-top .tagline{display:none}.pdi-social{gap:10px}.pdi-headrow{min-height:68px}.pdi-brand{min-width:0}.pdi-mark{width:55px;height:52px;font-size:21px}.pdi-brand strong{font-size:15px}.pdi-brand small{font-size:9px}.pdi-menu-toggle{display:block}.pdi-nav{display:none;position:absolute;left:0;right:0;top:100%;background:#031a40;padding:10px 14px 16px;flex-direction:column;align-items:stretch;border-top:1px solid #159eff}.pdi-nav.open{display:flex}.pdi-nav a{font-size:14px}.pdi-hero,.pdi-hero-inner{min-height:450px}.pdi-hero:before{background-position:62% center;opacity:.68}.pdi-hero:after{background:linear-gradient(90deg,#03183df2,#03183da8 75%,#03183d66)}.pdi-hero-copy{padding:24px 0;max-width:100%}.pdi-hero h1{font-size:39px}.pdi-hero-lead{font-size:15px}.pdi-software-row{display:block}.pdi-software-title{margin-bottom:8px;width:100%;font-size:16px}.pdi-software-chip{width:92px;height:62px}.pdi-benefit-row{grid-template-columns:repeat(2,1fr);gap:10px}.pdi-benefit{justify-content:flex-start;border-right:0;border-bottom:1px solid #bdd7f3;padding:7px}.pdi-course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.pdi-home-grid{grid-template-columns:1fr}.pdi-panel{padding:12px}.pdi-section-head h2{font-size:18px}.pdi-article-row{grid-template-columns:76px minmax(0,1fr) 22px}.pdi-article-thumb{height:52px}.pdi-stats-row{grid-template-columns:repeat(2,1fr)}.pdi-stat{border-right:0;border-bottom:1px solid #4a8ec7}.pdi-stat:first-child{grid-column:1/-1}.pdi-footer-grid{grid-template-columns:1fr 1fr}.pdi-copy{display:block}.pdi-archive-grid{grid-template-columns:1fr 1fr}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}

/* V4.2: image-based software marks and full product names */
.pdi-software-image-chip{width:128px;min-width:128px;height:78px;padding:5px 5px 4px;gap:3px;display:flex;flex-direction:column;justify-content:center;align-items:center;overflow:hidden}
.pdi-software-image-chip img{display:block;width:100%;height:49px;object-fit:contain;border-radius:5px;background:#05234e}
.pdi-software-image-chip span{display:block;max-width:100%;font-size:10px;line-height:1.05;text-align:center;white-space:normal;color:#fff;font-weight:900}
.pdi-software-image-chip:hover{transform:translateY(-2px);border-color:#ffd21a}
@media(max-width:700px){.pdi-software-image-chip{width:110px;min-width:110px}}


/* V4.3 premium ribbon: display each complete reference tile without cropping */
.pdi-software{padding:9px 0 11px;}
.pdi-software-row{align-items:center;gap:12px;}
.pdi-software-title{flex:0 0 220px;min-height:78px;}
.pdi-software-window{min-width:0;overflow:hidden;mask-image:linear-gradient(90deg,transparent 0,#000 2%,#000 98%,transparent 100%);}
.pdi-software-track{display:flex;align-items:center;gap:10px;width:max-content;will-change:transform;animation:pdi-marquee 46s linear infinite;}
.pdi-software-image-chip{width:100px!important;min-width:100px!important;height:70px!important;flex:0 0 100px!important;padding:0!important;display:flex!important;align-items:center!important;justify-content:center!important;overflow:visible!important;border:0!important;background:transparent!important;box-shadow:none!important;}
.pdi-software-image-chip img{display:block!important;width:100px!important;height:70px!important;max-width:none!important;object-fit:fill!important;object-position:center!important;border:0!important;border-radius:10px!important;background:transparent!important;}
.pdi-software-image-chip span{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important;}
.pdi-software-image-chip:hover{transform:translateY(-3px)!important;filter:drop-shadow(0 0 8px #19c8ff)!important;}
@media(max-width:760px){.pdi-software-row{display:flex;flex-direction:column;align-items:stretch}.pdi-software-title{flex:0 0 auto;width:100%;min-height:54px;margin:0}.pdi-software-image-chip{width:94px!important;min-width:94px!important;flex-basis:94px!important;height:66px!important}.pdi-software-image-chip img{width:94px!important;height:66px!important}}


/* V4.4 complete-homepage sections */
.pdi-extra{padding:0 0 22px}.pdi-extra-grid{display:grid;grid-template-columns:1.35fr .85fr .85fr;gap:14px}.pdi-extra-panel{background:#f9fcff;border:1px solid #d2e3f6;border-radius:17px;padding:15px;box-shadow:0 5px 18px #143d6812}.pdi-extra-panel h2{font-size:19px;margin:0 0 12px;color:#082453}.pdi-domain-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:9px}.pdi-domain-card{min-height:94px;border-radius:12px;background:linear-gradient(145deg,#06316a,#0874bd);color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:8px;gap:5px;border:1px solid #69baff;transition:.2s}.pdi-domain-card:hover{transform:translateY(-4px);box-shadow:0 8px 18px #087df044}.pdi-domain-card span{font-size:26px}.pdi-domain-card b{font-size:12px;line-height:1.15}.pdi-why ul{padding:0 0 0 20px;margin:0}.pdi-why li{font-weight:700;font-size:13px;margin:7px 0}.pdi-why li::marker{color:#e5a900}.pdi-feedback p{font-size:14px;color:#405675}.pdi-app-strip{background:linear-gradient(100deg,#061d48,#07549a);color:#fff;padding:18px 0;border-top:2px solid #16aaff;border-bottom:2px solid #16aaff}.pdi-app-strip .pdi-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px}.pdi-app-strip b{font-size:19px;color:#ffdb24}.pdi-app-strip span{font-size:14px}.pdi-app-strip .pdi-btn{white-space:nowrap}
@media(max-width:950px){.pdi-extra-grid{grid-template-columns:1fr 1fr}.pdi-domains{grid-column:1/-1}}
@media(max-width:650px){.pdi-extra-grid{grid-template-columns:1fr}.pdi-domains{grid-column:auto}.pdi-domain-grid{grid-template-columns:repeat(2,1fr)}.pdi-app-strip .pdi-wrap{align-items:flex-start;flex-direction:column}.pdi-app-strip b{display:block}}

/* V4.5: verified institute achievement highlight */
.pdi-stat-feature{background:linear-gradient(135deg,#08275b,#0756a2);border-radius:12px;margin:6px;padding:10px 14px;box-shadow:0 0 14px #10baff55}
.pdi-stat-feature strong{display:block;color:#ffd51d;font-size:25px;line-height:1.1}
.pdi-stat-feature em{display:block;font-style:normal;color:#fff;font-size:12px;font-weight:800}