/* ============================================================
   Power Solutions | ALLIANCE — Design System
   Navy / Gold brand palette
   ============================================================ */

:root{
  --navy: #0B2340;
  --navy-light: #123154;
  --navy-dark: #061627;
  --gold: #C9A227;
  --gold-light: #E3C659;
  --white: #FFFFFF;
  --gray-50: #F7F8FA;
  --gray-100: #EEF1F5;
  --gray-200: #DDE2E8;
  --gray-400: #9AA5B1;
  --gray-600: #5B6673;
  --gray-800: #2A313B;
  --text: #1C2530;
  --radius: 10px;
  --shadow-sm: 0 2px 8px rgba(11,35,64,0.08);
  --shadow-md: 0 8px 24px rgba(11,35,64,0.12);
  --maxw: 1180px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  color:var(--text);
  background:var(--white);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.visually-hidden{position:absolute;left:-9999px;}

h1,h2,h3,h4{margin:0 0 .5em;font-weight:700;color:var(--navy);line-height:1.25;}
h1{font-size:clamp(28px,4vw,44px);}
h2{font-size:clamp(22px,3vw,32px);}
h3{font-size:19px;}
p{margin:0 0 1em;}

section{padding:64px 0;}
.bg-gray{background:var(--gray-50);}
.bg-navy{background:var(--navy);color:var(--white);}
.bg-navy h1,.bg-navy h2,.bg-navy h3{color:var(--white);}
.text-center{text-align:center;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;font-weight:600;font-size:15px;
  border:2px solid transparent;cursor:pointer;transition:all .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--gold);color:var(--navy);border-color:var(--gold);}
.btn-primary:hover{background:var(--gold-light);border-color:var(--gold-light);}
.btn-outline{background:transparent;color:var(--navy);border-color:var(--navy);}
.btn-outline:hover{background:var(--navy);color:var(--white);}
.bg-navy .btn-outline,
.hero .btn-outline{color:var(--white);border-color:var(--white);}
.bg-navy .btn-outline:hover,
.hero .btn-outline:hover{background:var(--white);color:var(--navy);}
.btn-sm{padding:9px 18px;font-size:13px;}
.btn-block{width:100%;}

/* ---------- Header / Nav ---------- */
#site-header{
  position:sticky;top:0;z-index:1000;background:var(--white);
  border-bottom:1px solid var(--gray-200);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 24px;max-width:var(--maxw);margin:0 auto;gap:16px;
  flex-wrap:nowrap;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;min-width:0;}
.brand img{height:34px;width:auto;display:block;background:var(--navy);border-radius:8px;padding:8px 14px;box-sizing:content-box;flex-shrink:0;}
.brand-text{font-weight:700;color:var(--navy);font-size:15px;line-height:1.2;white-space:nowrap;}
.brand-text small{display:block;font-weight:500;color:var(--gray-600);font-size:11px;letter-spacing:.04em;text-transform:uppercase;}

/* #main-nav holds ONLY the collapsible nav-list (links + CTA). The
   language switch and the hamburger toggle live in .header-controls,
   a sibling of #main-nav, so they stay visible in the top bar at
   every breakpoint — they never collapse into the dropdown menu. */
#main-nav{display:flex;align-items:center;}
.nav-list{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0;flex-wrap:nowrap;}
.nav-list > li{position:relative;}
.nav-list a{
  display:block;padding:10px 14px;border-radius:6px;font-weight:600;
  font-size:14.5px;color:var(--navy);transition:background .15s;white-space:nowrap;
}
.nav-list a:hover,.nav-list a.active{background:var(--gray-100);}
.nav-list a.nav-cta{background:var(--gold);color:var(--navy);white-space:nowrap;}
.nav-list a.nav-cta:hover{background:var(--gold-light);}

.has-dropdown{position:relative;}
.has-dropdown .dropdown{
  position:absolute;top:100%;left:0;min-width:260px;background:var(--white);
  border:1px solid var(--gray-200);border-radius:var(--radius);box-shadow:var(--shadow-md);
  padding:8px;list-style:none;margin:6px 0 0;opacity:0;visibility:hidden;
  transform:translateY(6px);transition:all .18s ease;z-index:50;
}
.has-dropdown:hover .dropdown,
.has-dropdown:focus-within .dropdown{opacity:1;visibility:visible;transform:translateY(0);}
.dropdown li a{padding:10px 12px;font-weight:500;white-space:normal;}

.header-controls{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.lang-switch{display:flex;gap:4px;flex-shrink:0;}
.lang-switch a{padding:7px 10px;border-radius:6px;font-size:13px;font-weight:700;border:1px solid var(--gray-200);white-space:nowrap;}
.lang-switch a.active{background:var(--navy);color:var(--white);border-color:var(--navy);}

.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;flex-shrink:0;}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--navy);margin:5px 0;transition:.2s;}

/* Visible keyboard-focus rings for all interactive header controls
   (nav links, dropdown items, language switch, hamburger toggle). */
.nav-list a:focus-visible,
.dropdown a:focus-visible,
.lang-switch a:focus-visible,
.nav-toggle:focus-visible,
.brand:focus-visible{
  outline:3px solid var(--gold);outline-offset:2px;border-radius:6px;
}

/* Compact navigation: activates at 1100px so tablets (iPad in both
   orientations: 768/820/834/1024) get the dropdown menu instead of a
   cramped inline nav that pushes the ES/EN switch past the edge. */
@media (max-width: 1100px){
  .nav-toggle{display:block;}
  #main-nav{
    position:fixed;top:70px;left:0;right:0;bottom:0;background:var(--white);
    flex-direction:column;align-items:stretch;padding:16px;overflow-y:auto;
    transform:translateX(-100%);transition:transform .25s ease;display:block;
    z-index:999;
  }
  #main-nav.open{transform:translateX(0);}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;width:100%;flex-wrap:wrap;}
  .nav-list a{white-space:normal;}
  .nav-list a.nav-cta{display:inline-block;margin-top:10px;text-align:center;}
  .has-dropdown .dropdown{
    position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;
    border:none;padding-left:14px;display:none;
  }
  .has-dropdown.mobile-open .dropdown{display:block;}
}

/* Extra breathing room on phones so the logo + ES/EN + hamburger never
   collide or force horizontal scroll. */
@media (max-width: 480px){
  .header-inner{padding:12px 16px;gap:10px;}
  .brand{gap:8px;}
  .brand img{height:26px;padding:6px 10px;}
  .brand-text{font-size:13px;}
  .brand-text small{font-size:9.5px;}
  .header-controls{gap:8px;}
  .lang-switch a{padding:6px 8px;font-size:12px;}
  .nav-toggle{padding:6px;}
}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(135deg,var(--navy) 0%, var(--navy-dark) 100%);color:var(--white);padding:72px 0;}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;}
.hero h1{color:var(--white);}
.hero .lead{font-size:18px;color:var(--gray-200);max-width:560px;}
.hero-actions{display:flex;gap:14px;margin-top:24px;flex-wrap:wrap;}
.hero-image{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-md);}
@media (max-width:800px){.hero-grid{grid-template-columns:1fr;}}

.page-hero{background:var(--navy);color:var(--white);padding:52px 0;}
.page-hero h1{color:var(--white);}
.page-hero .lead{color:var(--gray-200);max-width:680px;font-size:17px;}
.breadcrumb{font-size:13px;color:var(--gold-light);margin-bottom:10px;}
.breadcrumb a{text-decoration:underline;}

/* ---------- Solution cards ---------- */
.solutions-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:32px;}
.solution-card{
  background:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;transition:transform .2s;
}
.solution-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.solution-card .icon{width:48px;height:48px;border-radius:10px;background:var(--gray-100);display:flex;align-items:center;justify-content:center;color:var(--gold);font-size:22px;margin-bottom:16px;}
.solution-card p{color:var(--gray-600);flex:1;}
@media (max-width:860px){.solutions-grid{grid-template-columns:1fr;}}

/* ---------- Process steps ---------- */
.process-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:32px;}
.process-step{text-align:center;padding:12px;}
.process-step .num{
  width:44px;height:44px;border-radius:50%;background:var(--navy);color:var(--gold);
  display:flex;align-items:center;justify-content:center;font-weight:700;margin:0 auto 14px;
}
@media (max-width:860px){.process-grid{grid-template-columns:1fr;}}

/* ---------- Catalog ---------- */
.catalog-toolbar{display:flex;gap:14px;flex-wrap:wrap;margin:28px 0;align-items:center;}
.catalog-toolbar input,.catalog-toolbar select{
  padding:12px 16px;border:1px solid var(--gray-200);border-radius:8px;font-size:14px;font-family:inherit;
  background:var(--white);
}
.catalog-toolbar input{flex:1;min-width:220px;}
.catalog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.product-card{
  border:1px solid var(--gray-200);border-radius:var(--radius);overflow:hidden;background:var(--white);
  display:flex;flex-direction:column;box-shadow:var(--shadow-sm);transition:transform .2s;
}
.product-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.product-card .thumb{aspect-ratio:4/3;overflow:hidden;background:var(--gray-100);padding:6px;}
.product-card .thumb img{width:100%;height:100%;object-fit:contain;}
.product-card .body{padding:18px;display:flex;flex-direction:column;flex:1;gap:8px;}
.product-card .cat-pill{align-self:flex-start;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--gold);background:rgba(201,162,39,.12);padding:4px 10px;border-radius:999px;}
.product-card .model{font-size:12px;color:var(--gray-600);font-weight:600;}
.product-card .specs{font-size:13px;color:var(--gray-600);margin:0;}
.product-card .btn{margin-top:auto;}
#catalog-empty{display:none;padding:40px;text-align:center;color:var(--gray-600);}
@media (max-width:980px){.catalog-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:620px){.catalog-grid{grid-template-columns:1fr;}}

/* ---------- Product / ficha page ---------- */
.product-hero{display:grid;grid-template-columns:.9fr 1.1fr;gap:36px;align-items:start;}
.product-hero .thumb{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-md);}
.product-hero .meta-pill{display:inline-block;background:var(--gray-100);color:var(--navy);font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px;margin-right:8px;margin-bottom:8px;}
@media (max-width:800px){.product-hero{grid-template-columns:1fr;}}

.spec-table{width:100%;border-collapse:collapse;margin:18px 0 28px;font-size:14.5px;}
.spec-table caption{text-align:left;font-weight:700;color:var(--navy);margin-bottom:8px;font-size:15px;}
.spec-table th,.spec-table td{padding:11px 14px;border-bottom:1px solid var(--gray-200);text-align:left;}
.spec-table th{width:42%;color:var(--gray-600);font-weight:600;background:var(--gray-50);}
.spec-table td{font-weight:600;color:var(--text);}

.callout{border-radius:8px;padding:16px 18px;margin:18px 0;font-size:14.5px;display:flex;gap:12px;align-items:flex-start;}
.callout::before{font-weight:700;flex-shrink:0;font-size:16px;line-height:1.4;}
.callout.warn{background:#FFF6E0;border:1px solid var(--gold);color:#5C4A0C;}
.callout.warn::before{content:"⚠";color:var(--gold);}
.callout.info{background:#E9F0F7;border:1px solid #9FBBD6;color:#1E3A57;}
.callout.info::before{content:"ℹ";color:var(--navy);}

.pill{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:700;padding:6px 14px;border-radius:999px;background:var(--gray-100);color:var(--navy);margin:4px 6px 4px 0;}
.pill.pill-warn{background:#FFF6E0;color:#8A6A00;}

.two-col{display:grid;grid-template-columns:1fr 1fr;gap:32px;}
@media (max-width:800px){.two-col{grid-template-columns:1fr;}}

.feature-list{list-style:none;margin:0;padding:0;}
.feature-list li{padding:10px 0 10px 28px;position:relative;border-bottom:1px solid var(--gray-200);}
.feature-list li::before{content:"✓";position:absolute;left:0;color:var(--gold);font-weight:700;}

.related-grid{margin-top:20px;}
.related-grid .catalog-grid{margin-top:18px;}

/* ---------- Forms ---------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.form-field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px;}
.form-field.full{grid-column:1/-1;}
.form-field label{font-size:13.5px;font-weight:700;color:var(--navy);}
.form-field .hint{font-size:12px;color:var(--gray-600);}
.form-field input,.form-field select,.form-field textarea{
  padding:12px 14px;border:1px solid var(--gray-200);border-radius:8px;font-family:inherit;font-size:14.5px;
  background:var(--white);color:var(--text);
}
.form-field textarea{resize:vertical;min-height:90px;}
fieldset{border:1px solid var(--gray-200);border-radius:var(--radius);padding:22px;margin:0 0 24px;}
fieldset legend{font-weight:700;color:var(--navy);padding:0 8px;font-size:15px;}
@media (max-width:700px){.form-grid{grid-template-columns:1fr;}}

#form-summary{margin-top:28px;background:var(--gray-50);border:1px solid var(--gray-200);border-radius:var(--radius);padding:24px;}
#summary-text{white-space:pre-wrap;font-family:'SFMono-Regular',Consolas,monospace;font-size:13.5px;background:var(--white);border:1px solid var(--gray-200);border-radius:8px;padding:16px;max-height:360px;overflow:auto;}
.summary-actions{display:flex;gap:12px;margin-top:16px;flex-wrap:wrap;align-items:center;}
#copy-feedback{font-size:13px;color:#1b7a3d;font-weight:600;}

/* ---------- Disclaimer box ---------- */
.disclaimer-box{background:var(--gray-50);border-left:4px solid var(--gold);border-radius:8px;padding:20px 22px;font-size:14px;color:var(--gray-800);margin:24px 0;}
.disclaimer-box strong{color:var(--navy);}

/* ---------- CTA band ---------- */
.cta-band{text-align:center;}
.cta-band .btn{margin:6px;}

/* ---------- Footer ---------- */
#site-footer{background:var(--navy-dark);color:var(--gray-200);padding:56px 0 24px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:36px;}
.footer-grid h4{color:var(--white);font-size:14px;text-transform:uppercase;letter-spacing:.04em;margin-bottom:14px;}
.footer-grid ul{list-style:none;margin:0;padding:0;}
.footer-grid li{margin-bottom:9px;font-size:14px;}
.footer-grid a:hover{color:var(--gold-light);}
.footer-brand img{height:36px;margin-bottom:12px;}
.footer-brand p{font-size:13.5px;color:var(--gray-400);max-width:280px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;font-size:12.5px;color:var(--gray-400);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;}
.footer-bottom a{text-decoration:underline;}
@media (max-width:860px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:500px){.footer-grid{grid-template-columns:1fr;}}

/* ---------- Misc ---------- */
.section-head{max-width:720px;margin:0 auto 8px;text-align:center;}
.section-head.left{text-align:left;margin:0 0 8px;}
table{font-family:inherit;}
.skip-link{position:absolute;left:-999px;top:0;background:var(--gold);color:var(--navy);padding:10px;z-index:2000;}
.skip-link:focus{left:0;}