/* ============================================================
   TDAC Thailand Guide — Main Stylesheet
   All components: typography, buttons, cards, tables, FAQ, etc.
   ============================================================ */

/* ---- Typography ---- */
h1,h2,h3,h4{font-weight:700;line-height:1.25;color:var(--text)}
h1{font-size:clamp(1.8rem,3.5vw,2.8rem);margin-bottom:20px}
h2{font-size:clamp(1.4rem,2.5vw,2rem);margin-bottom:16px}
h3{font-size:clamp(1.1rem,2vw,1.4rem);margin-bottom:12px}
h4{font-size:1rem;margin-bottom:8px}
p{margin-bottom:1rem;color:var(--text)}
p:last-child{margin-bottom:0}
a{color:var(--link);text-decoration:underline;transition:color .2s}
a:hover{color:var(--link-hover)}
strong,b{font-weight:700}
ul,ol{padding-left:1.5em;margin-bottom:1rem}
li{margin-bottom:.4rem}

/* ---- Buttons ---- */
.btn{display:inline-block;padding:11px 24px;border-radius:var(--radius);font-weight:600;font-size:.95rem;text-decoration:none;cursor:pointer;transition:background .2s,transform .15s,box-shadow .2s;border:2px solid transparent;line-height:1.3}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--gold);color:var(--text);border-color:var(--gold)}
.btn-primary:hover{background:#b07c14;border-color:#b07c14;color:var(--text)}
.btn-secondary{background:var(--navy);color:#fff;border-color:var(--navy)}
.btn-secondary:hover{background:var(--navy-dark);border-color:var(--navy-dark);color:#fff}
.btn-outline{background:transparent;color:var(--navy);border-color:var(--navy)}
.btn-outline:hover{background:var(--navy);color:#fff}

/* ---- Section Header ---- */
.section-header{text-align:center;margin-bottom:48px}
.section-header h2{position:relative;display:inline-block;padding-bottom:16px}
.section-header h2::after{content:'';display:block;width:60px;height:3px;background:var(--gold);border-radius:2px;margin:12px auto 0}
.section-header p,.section-lead{font-size:1.05rem;color:var(--text-muted);max-width:640px;margin:0 auto}
.section-accent .section-header h2{color:#fff}
.section-accent .section-header h2::after{background:var(--gold-light)}
.section-accent .section-lead{color:rgba(255,255,255,.8)}

/* ---- Stats Bar ---- */
.stats-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:8px 0}
.stat-item{text-align:center;padding:16px 8px}
.stat-number{display:block;font-size:clamp(1.6rem,3vw,2.4rem);font-weight:700;color:var(--gold-light);line-height:1.1;margin-bottom:6px}
.stat-label{font-size:.85rem;color:rgba(255,255,255,.82);text-transform:uppercase;letter-spacing:.05em;font-weight:600}
.stat-item+.stat-item{border-left:1px solid rgba(255,255,255,.15)}
@media(max-width:768px){.stats-bar{grid-template-columns:repeat(2,1fr)}.stat-item+.stat-item{border-left:none}}
@media(max-width:480px){.stats-bar{grid-template-columns:1fr 1fr}}

/* ---- Two-Column Layout ---- */
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.two-col-reversed{grid-template-columns:1fr 1fr}
.two-col-reversed .two-col-media{order:-1}
.two-col-text h2{margin-bottom:16px}
.two-col-media picture img,.two-col-media img{width:100%;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);aspect-ratio:580/400;object-fit:cover}
@media(max-width:768px){.two-col,.two-col-reversed{grid-template-columns:1fr;gap:32px}.two-col-reversed .two-col-media{order:0}}

/* ---- Feature Boxes ---- */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px}
.feature-box{background:#fff;border-radius:var(--radius-lg);padding:32px 24px;text-align:center;box-shadow:var(--shadow);border:1px solid var(--border);transition:transform .2s,box-shadow .2s}
.feature-box:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.feature-icon{font-size:2.4rem;margin-bottom:16px;display:block}
.feature-box h3{color:var(--navy);margin-bottom:10px;font-size:1.1rem}
.feature-box p{color:var(--text-muted);font-size:.92rem;margin:0}
@media(max-width:900px){.features-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:576px){.features-grid{grid-template-columns:1fr}}

/* ---- Parallax Section ---- */
.parallax-section{position:relative;min-height:280px;display:flex;align-items:center;overflow:hidden}
.parallax-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center}
.parallax-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(18,40,72,.88) 0%,rgba(27,58,107,.78) 100%)}
.parallax-content{position:relative;z-index:2;text-align:center;color:#fff !important;padding:48px 20px;max-width:800px;margin:0 auto}
.parallax-quote{font-size:clamp(1.3rem,2.5vw,1.8rem);font-weight:700;line-height:1.4;margin-bottom:12px;color:#fff !important}
.parallax-content p{font-size:1rem;opacity:.88;margin:0;color:#fff !important}
.parallax-content strong,.parallax-content b{color:#fff !important}
/* Dark background sections – force white on all text elements */
.section-accent p,.section-accent h1,.section-accent h2,.section-accent h3,.section-accent strong,.section-accent b,.section-accent em,.section-accent li{color:#fff !important}
.info-box p,.info-box h3,.info-box strong,.info-box b,.info-box-text p,.info-box-text h3{color:#fff !important}
.cta-banner p,.cta-banner h2,.cta-banner strong,.cta-banner b{color:#fff !important}

/* ---- CTA Banner ---- */
.cta-banner{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-dark) 100%);padding:56px 20px;text-align:center}
.cta-banner h2{color:#fff;font-size:clamp(1.4rem,2.5vw,2rem);margin-bottom:12px}
.cta-banner p{color:rgba(255,255,255,.85);font-size:1.05rem;margin-bottom:28px;max-width:560px;margin-left:auto;margin-right:auto}
.cta-banner .btn-primary{font-size:1.05rem;padding:14px 36px}

/* ---- Enhanced Table ---- */
.table-wrap{overflow-x:auto;margin:24px 0;border-radius:var(--radius-lg);box-shadow:var(--shadow)}
table{width:100%;border-collapse:collapse;font-size:.95rem}
thead th{background:var(--navy);color:#fff;padding:14px 18px;text-align:left;font-weight:600;font-size:.9rem;text-transform:uppercase;letter-spacing:.04em}
thead th:first-child{border-radius:var(--radius-lg) 0 0 0}
thead th:last-child{border-radius:0 var(--radius-lg) 0 0}
tbody tr{border-bottom:1px solid var(--border);transition:background .15s}
tbody tr:nth-child(even){background:var(--light)}
tbody tr:hover{background:#EEF4FF}
tbody td{padding:12px 18px;vertical-align:top}
tbody td strong{color:var(--navy)}
@media(max-width:576px){tbody td,thead th{padding:10px 12px;font-size:.88rem}}

/* ---- Timeline / Steps ---- */
.timeline{display:flex;flex-direction:column;gap:0;position:relative}
.timeline::before{content:'';position:absolute;left:28px;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,var(--gold),var(--navy));opacity:.3}
.timeline-item{display:flex;gap:24px;padding-bottom:32px;position:relative}
.timeline-item:last-child{padding-bottom:0}
.timeline-num{flex-shrink:0;width:56px;height:56px;border-radius:50%;background:var(--navy);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1.1rem;position:relative;z-index:1;box-shadow:0 0 0 4px var(--bg),0 0 0 6px var(--navy)}
.section-light .timeline-num{box-shadow:0 0 0 4px var(--light),0 0 0 6px var(--navy)}
.timeline-body{padding-top:12px}
.timeline-body h3{color:var(--navy);margin-bottom:8px}
.timeline-body p{color:var(--text-muted);font-size:.95rem;margin:0}
@media(max-width:576px){.timeline::before{left:20px}.timeline-num{width:40px;height:40px;font-size:.9rem}.timeline-item{gap:16px}}

/* ---- FAQ Accordion ---- */
.accordion{display:flex;flex-direction:column;gap:12px;max-width:860px;margin:0 auto}
.accordion-item{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border)}
.accordion-btn{width:100%;display:flex;justify-content:space-between;align-items:center;padding:18px 22px;background:var(--light);border:none;cursor:pointer;font-family:var(--font);font-size:1rem;font-weight:600;color:var(--navy);text-align:left;transition:background .2s}
.accordion-btn:hover{background:#E5EBF8}
.accordion-btn.active{background:var(--navy);color:#fff}
.accordion-icon{font-size:1.2rem;transition:transform .3s;flex-shrink:0;margin-left:16px}
.accordion-btn.active .accordion-icon{transform:rotate(45deg)}
.accordion-body{display:none;padding:20px 22px;background:#fff;border-top:1px solid var(--border);font-size:.95rem;line-height:1.7;color:var(--text)}
.accordion-body.open{display:block}
.accordion-body p:last-child{margin-bottom:0}

/* ---- Cards Grid (subpage links) ---- */
.cards-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:#fff;border-radius:var(--radius-lg);padding:28px 24px;box-shadow:var(--shadow);border:1px solid var(--border);text-decoration:none;color:var(--text);transition:transform .2s,box-shadow .2s;display:flex;flex-direction:column;gap:10px}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);color:var(--text)}
.card-icon{font-size:2rem}
.card-title{font-size:1.05rem;font-weight:700;color:var(--navy)}
.card-desc{font-size:.9rem;color:var(--text-muted);line-height:1.55;flex-grow:1}
.card-cta{font-size:.88rem;font-weight:600;color:var(--gold);margin-top:auto}
@media(max-width:900px){.cards-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:576px){.cards-grid{grid-template-columns:1fr}}

/* ---- Alert Boxes ---- */
.alert{border-radius:var(--radius);padding:16px 20px;margin:20px 0;border-left:4px solid;font-size:.95rem;line-height:1.6}
.alert p:last-child{margin:0}
.alert-info{background:var(--alert-info-bg);border-color:var(--alert-info-border);color:var(--alert-info-text)}
.alert-warning{background:var(--alert-warn-bg);border-color:var(--alert-warn-border);color:var(--alert-warn-text)}
.alert-success{background:var(--alert-ok-bg);border-color:var(--alert-ok-border);color:var(--alert-ok-text)}
.alert-danger{background:var(--alert-err-bg);border-color:var(--alert-err-border);color:var(--alert-err-text)}
.alert strong{font-weight:700}

/* ---- Check List ---- */
.check-list{list-style:none;padding:0;margin:16px 0}
.check-list li{padding:6px 0 6px 28px;position:relative;font-size:.97rem;border-bottom:1px solid var(--border)}
.check-list li:last-child{border-bottom:none}
.check-list li::before{content:'✓';position:absolute;left:0;color:var(--gold);font-weight:700;font-size:1rem}

/* ---- Highlight Quote ---- */
.highlight-quote{border-left:4px solid var(--gold);padding:16px 20px;background:var(--light);border-radius:0 var(--radius) var(--radius) 0;margin:24px 0;font-size:1.05rem;font-style:italic;color:var(--text)}

/* ---- Form Screenshot (official government form screenshots) ---- */
.form-screenshot{margin:28px 0;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:0 2px 12px rgba(0,0,0,.08);background:#f9fafb;text-align:center}
.form-screenshot img{display:block;max-width:100%;width:auto;height:auto;margin:0 auto}
.form-screenshot figcaption{padding:12px 18px;background:var(--light);font-size:.87rem;line-height:1.6;color:var(--text);margin:0;border-top:1px solid var(--border);text-align:left}
.form-screenshot figcaption strong{color:var(--navy)}
@media(max-width:700px){.form-screenshot{margin:20px 0}.form-screenshot img{width:100%}}

/* ---- Badge ---- */
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em}
.badge-gold{background:var(--gold);color:#1a1a1a}
.badge-navy{background:var(--navy);color:#fff}
.badge-green{background:#059669;color:#fff}
.badge-red{background:#DC2626;color:#fff}

/* ---- Article Layout (subpages) ---- */
.article-wrap{display:grid;grid-template-columns:1fr 320px;gap:48px;align-items:start;padding:48px 0}
.article-content h2{color:var(--navy);margin-top:36px;margin-bottom:14px;padding-bottom:8px;border-bottom:2px solid var(--border)}
.article-content h2:first-child{margin-top:0}
.article-content h3{color:var(--text);margin-top:24px;margin-bottom:10px}
.article-content h4{color:var(--navy);margin-top:16px;margin-bottom:8px}
.article-content ul,.article-content ol{margin:12px 0 16px;padding-left:20px}
.article-content li{margin-bottom:6px;line-height:1.65}
.article-content table{margin:20px 0}
.article-content p{margin-bottom:1rem;line-height:1.75}
@media(max-width:900px){.article-wrap{grid-template-columns:1fr;gap:32px}.article-sidebar{order:-1}}

/* ---- TOC Sidebar ---- */
.toc-box{background:var(--light);border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px;position:sticky;top:80px}
.toc-box h4{color:var(--navy);font-size:.9rem;text-transform:uppercase;letter-spacing:.06em;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--gold)}
.toc-list{list-style:none;padding:0;margin:0}
.toc-list li{padding:0}
.toc-list a{display:block;padding:7px 0;color:var(--text-muted);font-size:.9rem;text-decoration:none;border-bottom:1px solid var(--border);transition:color .15s,padding .15s}
.toc-list a:hover{color:var(--navy);padding-left:6px}
.toc-list li:last-child a{border-bottom:none}

/* ---- Compare Box ---- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin:24px 0}
.compare-box{border-radius:var(--radius-lg);padding:24px;border:2px solid var(--border)}
.compare-box.compare-new{border-color:var(--gold);background:#FFFBF0}
.compare-box.compare-old{border-color:var(--border);background:var(--light)}
.compare-box h3{font-size:1rem;margin-bottom:14px;padding-bottom:8px;border-bottom:2px solid currentColor}
.compare-box.compare-new h3{color:var(--gold)}
.compare-box.compare-old h3{color:var(--text-muted)}
.compare-box ul{list-style:none;padding:0}
.compare-box li{padding:5px 0 5px 20px;position:relative;font-size:.92rem;color:var(--text)}
.compare-box li::before{position:absolute;left:0}
.compare-new li::before{content:'✓';color:var(--gold)}
.compare-old li::before{content:'✗';color:var(--text-muted)}
@media(max-width:576px){.compare-grid{grid-template-columns:1fr}}

/* ---- Footer ---- */
.site-footer{background:var(--navy-dark);color:var(--text-muted);padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-col h4{color:#fff;font-size:.9rem;text-transform:uppercase;letter-spacing:.07em;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--gold);display:inline-block}
.footer-col p{color:rgba(255,255,255,.65);font-size:.88rem;line-height:1.65}
.footer-col ul{list-style:none;padding:0}
.footer-col ul li{margin-bottom:8px}
.footer-col ul a{color:rgba(255,255,255,.7);font-size:.88rem;text-decoration:none;transition:color .2s}
.footer-col ul a:hover{color:var(--gold-light)}
.footer-bottom{padding:20px 0;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px}
.footer-disclaimer{font-size:.78rem;color:rgba(255,255,255,.45);line-height:1.5;max-width:700px}
.footer-copy{font-size:.80rem;color:rgba(255,255,255,.45);white-space:nowrap}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr 1fr}}
@media(max-width:576px){.footer-grid{grid-template-columns:1fr 1fr}.footer-bottom{flex-direction:column;text-align:center}}

/* ---- Navigation Premium ---- */
.site-header{position:sticky;top:0;z-index:1000}
.has-sub{position:relative}
.sub-menu{display:none;position:absolute;top:100%;left:0;background:var(--navy-dark);min-width:220px;border-radius:0 0 var(--radius) var(--radius);box-shadow:var(--shadow-lg);list-style:none;padding:8px 0;margin:0}
.has-sub:hover .sub-menu{display:block}
.sub-menu li a{padding:10px 18px;display:block;font-size:.88rem;color:rgba(255,255,255,.85);white-space:nowrap}
.sub-menu li a:hover{background:rgba(255,255,255,.08);color:var(--gold-light)}
.has-sub > a::after{content:' ▾';font-size:.7rem;opacity:.7}

/* ---- Sitemap Page ---- */
.sitemap-section h2{color:var(--navy);border-bottom:2px solid var(--gold);padding-bottom:8px;margin-bottom:20px;font-size:1.2rem}
.sitemap-section ul{list-style:none;padding:0}
.sitemap-section li{padding:6px 0;border-bottom:1px solid var(--border)}
.sitemap-section a{color:var(--navy);text-decoration:none;font-weight:500}
.sitemap-section a:hover{color:var(--gold);text-decoration:underline}

/* ---- Info Box (important notice) ---- */
.info-box{background:var(--navy);color:#fff;border-radius:var(--radius-lg);padding:28px 32px;margin:32px 0;display:flex;gap:20px;align-items:flex-start}
.info-box-icon{font-size:2rem;flex-shrink:0}
.info-box-text h3{color:#fff;margin-bottom:8px}
.info-box-text p{color:rgba(255,255,255,.85);margin:0;font-size:.95rem}

/* ---- Process Steps ---- */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:16px}
.step-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:24px 20px;text-align:center;position:relative;box-shadow:var(--shadow)}
.step-card::before{content:attr(data-step);position:absolute;top:-16px;left:50%;transform:translateX(-50%);background:var(--gold);color:#1a1a1a;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem;border:2px solid var(--bg)}
.step-card h3{color:var(--navy);font-size:1rem;margin-bottom:8px;margin-top:8px}
.step-card p{color:var(--text-muted);font-size:.88rem;margin:0}
@media(max-width:900px){.steps-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:576px){.steps-grid{grid-template-columns:1fr}}

/* ---- Related Articles (bottom of subpages) ---- */
.related-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:16px}
.related-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px;text-decoration:none;color:var(--text);transition:box-shadow .2s,transform .2s;display:flex;flex-direction:column;gap:8px}
.related-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px);color:var(--text)}
.related-card-title{font-weight:700;font-size:.95rem;color:var(--navy)}
.related-card-desc{font-size:.85rem;color:var(--text-muted)}
.related-card-more{font-size:.85rem;color:var(--gold);font-weight:600}
@media(max-width:768px){.related-cards{grid-template-columns:repeat(2,1fr)}}
@media(max-width:480px){.related-cards{grid-template-columns:1fr}}

/* ---- Utility ---- */
.text-center{text-align:center}
.text-muted{color:var(--text-muted)}
.mt-0{margin-top:0}.mb-0{margin-bottom:0}
.mt-4{margin-top:32px}.mb-4{margin-bottom:32px}
.d-flex{display:flex}.gap-2{gap:16px}.align-center{align-items:center}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}