/* ═══════════════════════════════════════════════════════════
   Unit Converters Super Hub Page — CSS
   Prefix: uch- (unit-converters-hub)
   Theme: Orange/Amber (#F59E0B) accent
   ═══════════════════════════════════════════════════════════ */

/* === HERO === */
.uch-hero{text-align:center;padding:56px 20px 32px;max-width:880px;margin:0 auto}
.uch-hero-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(245,158,11,0.1);border:1px solid rgba(245,158,11,0.3);border-radius:20px;padding:6px 16px;font-size:13px;color:#F59E0B;font-family:'DM Sans',sans-serif;margin-bottom:20px;font-weight:600;letter-spacing:0.5px}
.uch-hero-title{font-family:'Laila',serif;font-size:clamp(28px,4.5vw,44px);font-weight:700;color:#FFFFFF;margin:0 0 14px;line-height:1.2}
.uch-hero-title span{color:#F59E0B}
.uch-hero-sub{font-family:'DM Sans',sans-serif;font-size:15px;color:#8899AA;max-width:640px;margin:0 auto 32px;line-height:1.7}
.uch-hero-search{position:relative;max-width:520px;margin:0 auto}
.uch-hero-search input{width:100%;padding:16px 20px 16px 48px;background:#111B2E;border:1px solid rgba(55,75,100,0.3);border-radius:14px;color:#FFFFFF;font-family:'DM Sans',sans-serif;font-size:15px;outline:none;transition:border-color 0.3s,box-shadow 0.3s;box-sizing:border-box}
.uch-hero-search input::placeholder{color:#5A7090}
.uch-hero-search input:focus{border-color:#F59E0B;box-shadow:0 0 0 3px rgba(245,158,11,0.15)}
.uch-hero-search svg{position:absolute;left:18px;top:50%;transform:translateY(-50%);width:18px;height:18px;stroke:#5A7090;fill:none;stroke-width:2;pointer-events:none}

/* === STATS === */
.uch-stats{padding:10px 20px 40px;max-width:750px;margin:0 auto}
.uch-stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.uch-stat-value{font-family:'DM Sans',sans-serif;font-size:clamp(22px,3vw,32px);font-weight:700;color:#FFFFFF;line-height:1}
.uch-stat-value span{color:#F59E0B}
.uch-stat-label{font-size:12px;color:#5A7090;margin-top:6px;font-family:'DM Sans',sans-serif}
@media(max-width:500px){.uch-stats-grid{grid-template-columns:repeat(2,1fr);gap:16px}}

/* === SHARED SECTION === */
.uch-section-header{text-align:center;margin-bottom:36px}
.uch-section-label{font-size:13px;color:#F59E0B;text-transform:uppercase;letter-spacing:2px;font-weight:600;margin-bottom:8px;font-family:'DM Sans',sans-serif}
.uch-section-title{font-family:'DM Sans',sans-serif;font-size:clamp(22px,3.5vw,32px);font-weight:700;color:#FFFFFF;margin:0 0 10px}
.uch-section-sub{font-size:15px;color:#8899AA;max-width:600px;margin:0 auto;line-height:1.6;font-family:'DM Sans',sans-serif}

/* === CATEGORY CARDS (3-column) === */
.uch-cats-section{max-width:1040px;margin:0 auto;padding:40px 20px 60px}
.uch-cats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}

.uch-cat-card{background:#111B2E;border:1px solid rgba(55,75,100,0.3);border-radius:16px;padding:28px 24px;position:relative;overflow:hidden;transition:transform 0.3s,border-color 0.3s,box-shadow 0.3s;text-decoration:none;display:block}
.uch-cat-card:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(0,0,0,0.2)}
.uch-cat-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;opacity:0;transition:opacity 0.3s}
.uch-cat-card:hover::before{opacity:1}

/* Accent colors */
.uch-cat-card.ac-amber::before{background:linear-gradient(90deg,#F59E0B,#FBBF24)}
.uch-cat-card.ac-amber:hover{border-color:rgba(245,158,11,0.4)}
.uch-cat-card.ac-blue::before{background:linear-gradient(90deg,#3B82F6,#60A5FA)}
.uch-cat-card.ac-blue:hover{border-color:rgba(59,130,246,0.4)}
.uch-cat-card.ac-green::before{background:linear-gradient(90deg,#10B981,#34D399)}
.uch-cat-card.ac-green:hover{border-color:rgba(16,185,129,0.4)}
.uch-cat-card.ac-purple::before{background:linear-gradient(90deg,#8B5CF6,#A78BFA)}
.uch-cat-card.ac-purple:hover{border-color:rgba(139,92,246,0.4)}
.uch-cat-card.ac-pink::before{background:linear-gradient(90deg,#EC4899,#F472B6)}
.uch-cat-card.ac-pink:hover{border-color:rgba(236,72,153,0.4)}
.uch-cat-card.ac-cyan::before{background:linear-gradient(90deg,#06B6D4,#22D3EE)}
.uch-cat-card.ac-cyan:hover{border-color:rgba(6,182,212,0.4)}
.uch-cat-card.ac-red::before{background:linear-gradient(90deg,#EF4444,#F87171)}
.uch-cat-card.ac-red:hover{border-color:rgba(239,68,68,0.4)}
.uch-cat-card.ac-indigo::before{background:linear-gradient(90deg,#6366F1,#818CF8)}
.uch-cat-card.ac-indigo:hover{border-color:rgba(99,102,241,0.4)}
.uch-cat-card.ac-teal::before{background:linear-gradient(90deg,#14B8A6,#2DD4BF)}
.uch-cat-card.ac-teal:hover{border-color:rgba(20,184,166,0.4)}
.uch-cat-card.ac-rose::before{background:linear-gradient(90deg,#F43F5E,#FB7185)}
.uch-cat-card.ac-rose:hover{border-color:rgba(244,63,94,0.4)}
.uch-cat-card.ac-lime::before{background:linear-gradient(90deg,#84CC16,#A3E635)}
.uch-cat-card.ac-lime:hover{border-color:rgba(132,204,22,0.4)}
.uch-cat-card.ac-sky::before{background:linear-gradient(90deg,#0EA5E9,#38BDF8)}
.uch-cat-card.ac-sky:hover{border-color:rgba(14,165,233,0.4)}
.uch-cat-card.ac-fuchsia::before{background:linear-gradient(90deg,#D946EF,#E879F9)}
.uch-cat-card.ac-fuchsia:hover{border-color:rgba(217,70,239,0.4)}
.uch-cat-card.ac-emerald::before{background:linear-gradient(90deg,#059669,#34D399)}
.uch-cat-card.ac-emerald:hover{border-color:rgba(5,150,105,0.4)}
.uch-cat-card.ac-violet::before{background:linear-gradient(90deg,#7C3AED,#A78BFA)}
.uch-cat-card.ac-violet:hover{border-color:rgba(124,58,237,0.4)}
.uch-cat-card.ac-slate::before{background:linear-gradient(90deg,#64748B,#94A3B8)}
.uch-cat-card.ac-slate:hover{border-color:rgba(100,116,139,0.4)}
.uch-cat-card.ac-yellow::before{background:linear-gradient(90deg,#EAB308,#FACC15)}
.uch-cat-card.ac-yellow:hover{border-color:rgba(234,179,8,0.4)}
.uch-cat-card.ac-orange::before{background:linear-gradient(90deg,#F97316,#FB923C)}
.uch-cat-card.ac-orange:hover{border-color:rgba(249,115,22,0.4)}

/* Icons */
.uch-cat-icon{width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:16px}
.uch-cat-icon.ci-amber{background:rgba(245,158,11,0.12)}
.uch-cat-icon.ci-blue{background:rgba(59,130,246,0.12)}
.uch-cat-icon.ci-green{background:rgba(16,185,129,0.12)}
.uch-cat-icon.ci-purple{background:rgba(139,92,246,0.12)}
.uch-cat-icon.ci-pink{background:rgba(236,72,153,0.12)}
.uch-cat-icon.ci-cyan{background:rgba(6,182,212,0.12)}
.uch-cat-icon.ci-red{background:rgba(239,68,68,0.12)}
.uch-cat-icon.ci-indigo{background:rgba(99,102,241,0.12)}
.uch-cat-icon.ci-teal{background:rgba(20,184,166,0.12)}
.uch-cat-icon.ci-rose{background:rgba(244,63,94,0.12)}
.uch-cat-icon.ci-lime{background:rgba(132,204,22,0.12)}
.uch-cat-icon.ci-sky{background:rgba(14,165,233,0.12)}
.uch-cat-icon.ci-fuchsia{background:rgba(217,70,239,0.12)}
.uch-cat-icon.ci-emerald{background:rgba(5,150,105,0.12)}
.uch-cat-icon.ci-violet{background:rgba(124,58,237,0.12)}
.uch-cat-icon.ci-slate{background:rgba(100,116,139,0.12)}
.uch-cat-icon.ci-yellow{background:rgba(234,179,8,0.12)}
.uch-cat-icon.ci-orange{background:rgba(249,115,22,0.12)}

.uch-cat-top{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:4px}
.uch-cat-name{font-family:'DM Sans',sans-serif;font-size:17px;font-weight:700;color:#FFFFFF;margin:0}
.uch-cat-count{font-size:11px;font-weight:600;font-family:'DM Sans',sans-serif;padding:3px 10px;border-radius:6px;text-transform:uppercase;letter-spacing:0.3px;white-space:nowrap;flex-shrink:0}
.uch-cat-count.cc-live{background:rgba(16,185,129,0.1);color:#10B981}
.uch-cat-count.cc-soon{background:rgba(245,158,11,0.1);color:#F59E0B}

.uch-cat-desc{font-family:'DM Sans',sans-serif;font-size:13px;color:#8899AA;line-height:1.6;margin:8px 0 16px}
.uch-cat-examples{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}
.uch-cat-ex{font-size:11px;color:#C8D8E8;background:rgba(55,75,100,0.25);padding:4px 10px;border-radius:6px;font-family:'DM Sans',sans-serif;font-weight:500;transition:background 0.2s}
.uch-cat-card:hover .uch-cat-ex{background:rgba(55,75,100,0.4)}

.uch-cat-arrow{display:flex;align-items:center;gap:6px;font-family:'DM Sans',sans-serif;font-size:13px;font-weight:600;color:#F59E0B;transition:gap 0.3s}
.uch-cat-card:hover .uch-cat-arrow{gap:10px}
.uch-cat-arrow svg{width:14px;height:14px;stroke:#F59E0B;fill:none;stroke-width:2}

/* Coming soon state */
.uch-cat-card.coming-soon{opacity:0.65;cursor:default}
.uch-cat-card.coming-soon:hover{transform:none;box-shadow:none;border-color:rgba(55,75,100,0.3)}
.uch-cat-card.coming-soon:hover::before{opacity:0}
.uch-cat-card.coming-soon .uch-cat-arrow{color:#5A7090}
.uch-cat-card.coming-soon .uch-cat-arrow svg{stroke:#5A7090}

@media(max-width:800px){.uch-cats-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:500px){.uch-cats-grid{grid-template-columns:1fr}}

/* === QUICK CONVERTER WIDGET === */
.uch-quick-section{max-width:700px;margin:0 auto;padding:20px 20px 50px}
.uch-quick-card{background:#111B2E;border:1px solid rgba(55,75,100,0.3);border-radius:18px;padding:32px;position:relative;overflow:hidden}
.uch-quick-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,#F59E0B,#F97316,#EF4444,#EC4899,#8B5CF6,#3B82F6,#10B981)}
.uch-quick-row{display:flex;align-items:flex-end;gap:12px;flex-wrap:wrap}
.uch-quick-group{display:flex;flex-direction:column;gap:6px;flex:1;min-width:120px}
.uch-quick-label{font-size:12px;color:#5A7090;font-family:'DM Sans',sans-serif;font-weight:600;text-transform:uppercase;letter-spacing:1px}
.uch-quick-select{padding:13px 36px 13px 14px;font-size:15px;font-weight:600;border-radius:12px;border:1px solid rgba(55,75,100,0.4);background:#0B1120;color:#FFFFFF;cursor:pointer;font-family:'DM Sans',sans-serif;outline:none;transition:border-color 0.3s;appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23F59E0B%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E");background-repeat:no-repeat;background-position:right 12px center;background-size:10px}
.uch-quick-select:focus{border-color:#F59E0B}
.uch-quick-input{padding:13px 14px;font-size:15px;font-weight:600;border-radius:12px;border:1px solid rgba(55,75,100,0.4);background:#0B1120;color:#FFFFFF;font-family:'DM Sans',sans-serif;outline:none;transition:border-color 0.3s;width:100%;box-sizing:border-box}
.uch-quick-input:focus{border-color:#F59E0B}
.uch-quick-swap{width:40px;height:40px;border-radius:50%;background:rgba(245,158,11,0.1);border:1px solid rgba(245,158,11,0.3);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all 0.3s;flex-shrink:0}
.uch-quick-swap:hover{background:rgba(245,158,11,0.2);transform:rotate(180deg)}
.uch-quick-swap svg{width:16px;height:16px;stroke:#F59E0B;fill:none;stroke-width:2}
.uch-quick-result{margin-top:20px;background:rgba(245,158,11,0.05);border:1px solid rgba(245,158,11,0.15);border-radius:12px;padding:16px 20px;text-align:center}
.uch-quick-result-value{font-family:'DM Sans',sans-serif;font-size:clamp(20px,3vw,28px);font-weight:700;color:#F59E0B}
.uch-quick-result-label{font-size:13px;color:#8899AA;margin-top:4px;font-family:'DM Sans',sans-serif}
.uch-quick-note{text-align:center;margin-top:12px;font-size:12px;color:#5A7090;font-family:'DM Sans',sans-serif}

/* === HOW IT WORKS === */
.uch-hiw-section{max-width:900px;margin:0 auto;padding:60px 20px}
.uch-hiw-card{background:#111B2E;border:1px solid rgba(55,75,100,0.3);border-radius:16px;padding:48px 32px;position:relative;overflow:hidden}
.uch-hiw-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,#F59E0B,#F97316,#EF4444)}
.uch-hiw-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;text-align:center}
.uch-hiw-num{width:44px;height:44px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:17px;margin-bottom:16px;font-family:'DM Sans',sans-serif}
.uch-hiw-num.s1{background:rgba(245,158,11,0.15);color:#F59E0B}
.uch-hiw-num.s2{background:rgba(249,115,22,0.15);color:#F97316}
.uch-hiw-num.s3{background:rgba(239,68,68,0.15);color:#EF4444}
.uch-hiw-stepname{font-size:15px;font-weight:700;color:#FFFFFF;margin-bottom:8px;font-family:'DM Sans',sans-serif}
.uch-hiw-stepdesc{font-size:13px;color:#8899AA;line-height:1.5;font-family:'DM Sans',sans-serif}
@media(max-width:600px){.uch-hiw-steps{grid-template-columns:1fr;gap:24px}.uch-hiw-card{padding:32px 20px}}

/* === FEATURES === */
.uch-features-section{max-width:1000px;margin:0 auto;padding:60px 20px}
.uch-features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px}
.uch-feature-card{background:#111B2E;border:1px solid rgba(55,75,100,0.3);border-radius:14px;padding:28px 24px;text-align:center;transition:transform 0.25s,border-color 0.25s}
.uch-feature-card:hover{transform:translateY(-2px);border-color:rgba(245,158,11,0.3)}
.uch-feature-icon{width:48px;height:48px;border-radius:14px;display:inline-flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:14px}
.uch-feature-title{font-family:'DM Sans',sans-serif;font-size:16px;font-weight:700;color:#FFFFFF;margin:0 0 8px}
.uch-feature-desc{font-family:'DM Sans',sans-serif;font-size:13px;color:#8899AA;line-height:1.6;margin:0}
@media(max-width:700px){.uch-features-grid{grid-template-columns:1fr}}

/* === WHO === */
.uch-who-section{max-width:900px;margin:0 auto;padding:60px 20px;text-align:center}
.uch-who-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:32px}
.uch-who-tag{display:inline-flex;align-items:center;gap:8px;background:#111B2E;border:1px solid rgba(55,75,100,0.3);border-radius:10px;padding:10px 18px;font-family:'DM Sans',sans-serif;font-size:14px;color:#C8D8E8;font-weight:500;transition:all 0.25s}
.uch-who-tag:hover{border-color:rgba(245,158,11,0.4);transform:translateY(-1px)}
.uch-who-tag span.dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}

/* === FAQ === */
.uch-faq-section{max-width:800px;margin:0 auto;padding:60px 20px}
.uch-faq-item{border:1px solid rgba(55,75,100,0.3);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color 0.3s}
.uch-faq-item:hover{border-color:rgba(245,158,11,0.3)}
.uch-faq-q{width:100%;background:#111B2E;border:none;padding:18px 20px;color:#FFFFFF;font-size:15px;font-weight:600;font-family:'DM Sans',sans-serif;text-align:left;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:12px;line-height:1.4;-webkit-user-select:none;user-select:none}
.uch-faq-q::after{content:'+';font-size:22px;color:#F59E0B;transition:transform 0.3s;flex-shrink:0;font-weight:400}
.uch-faq-item.active .uch-faq-q::after{transform:rotate(45deg)}
.uch-faq-a{max-height:0;overflow:hidden;transition:max-height 0.4s ease,padding 0.4s;background:#111B2E;padding:0 20px;color:#8899AA;font-size:14px;line-height:1.7;font-family:'DM Sans',sans-serif}
.uch-faq-item.active .uch-faq-a{max-height:300px;padding:0 20px 20px}

/* === INTERNAL LINKS === */
.uch-links-section{max-width:1000px;margin:0 auto;padding:40px 20px 60px}
.uch-links-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}
.uch-link-card{background:#111B2E;border:1px solid rgba(55,75,100,0.3);border-radius:12px;padding:20px;display:flex;align-items:center;gap:14px;text-decoration:none;transition:transform 0.25s,border-color 0.25s}
.uch-link-card:hover{transform:translateY(-2px);border-color:rgba(245,158,11,0.3)}
.uch-link-icon{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:20px;flex-shrink:0}
.uch-link-name{font-family:'DM Sans',sans-serif;font-size:14px;font-weight:600;color:#FFFFFF}
.uch-link-desc{font-family:'DM Sans',sans-serif;font-size:12px;color:#5A7090;margin-top:2px}
@media(max-width:600px){.uch-links-grid{grid-template-columns:1fr}}

/* === CTA === */
.uch-cta-section{text-align:center;padding:60px 20px;background:linear-gradient(180deg,transparent 0%,rgba(245,158,11,0.03) 100%)}
.uch-cta-title{font-family:'DM Sans',sans-serif;font-size:clamp(24px,3.5vw,34px);font-weight:700;color:#FFFFFF;margin:0 0 12px}
.uch-cta-sub{font-size:15px;color:#8899AA;max-width:480px;margin:0 auto 28px;line-height:1.6;font-family:'DM Sans',sans-serif}
.uch-cta-btn{display:inline-flex;align-items:center;gap:8px;background:#F59E0B;color:#0B1120 !important;padding:14px 32px;border-radius:12px;text-decoration:none;font-weight:700;font-size:15px;font-family:'DM Sans',sans-serif;transition:all 0.25s;border:none;cursor:pointer}
.uch-cta-btn:hover{background:#D97706;transform:translateY(-2px);box-shadow:0 8px 24px rgba(245,158,11,0.25)}

/* === BREADCRUMB === */
.uch-breadcrumb{max-width:1000px;margin:0 auto;padding:12px 20px;font-family:'DM Sans',sans-serif;font-size:13px}
.uch-breadcrumb a{color:#5A7090;text-decoration:none;transition:color 0.2s}
.uch-breadcrumb a:hover{color:#F59E0B}
.uch-breadcrumb span.sep{color:#374B64;margin:0 8px}
.uch-breadcrumb span.current{color:#8899AA}