/* ==========================================================
   Cooling Brisa — site styles
   Light-blue theme: #EAF6FC primary background, #F5F7FA
   secondary, white for cards, navy for header / marine /
   CTA / footer, blue for actions.
   ========================================================== */

:root{
  --navy:#0B1F3A;
  --navy-deep:#07172C;
  --blue:#1677C8;
  --blue-dark:#0F5FA3;
  --accent:#4DB8E8;
  --ice:#EAF6FC;
  --gray:#F5F7FA;
  --white:#FFFFFF;
  --text:#1F2937;
  --muted:#4B5563;
  --border:#DCE6EF;
  --border-strong:#C9D6E3;

  --radius:12px;
  --radius-sm:8px;
  --shadow:0 1px 2px rgba(11,31,58,.05),0 4px 14px rgba(11,31,58,.06);

  --container:1180px;
  --gutter:clamp(1.1rem,4vw,2rem);
  --section-y:clamp(3rem,7vw,4.75rem);
  --header-h:72px;

  --font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:calc(var(--header-h) + 12px);-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);font-size:1rem;line-height:1.65;color:var(--text);background:var(--ice);overflow-x:hidden}
img,video{display:block;max-width:100%;height:auto}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--blue-dark)}
h1,h2,h3,h4{margin:0;color:var(--navy);line-height:1.2;font-weight:700;letter-spacing:-.015em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--gutter)}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--white);color:var(--navy);padding:.6rem 1rem;z-index:200}
.skip-link:focus{left:0}

/* ---------- Sections ---------- */
.section{padding:var(--section-y) 0}
.section--ice{background:var(--ice)}
.section--gray{background:var(--gray)}
.section--navy{background:var(--navy);color:#D7E3F1}
.section--navy h2,.section--navy h3{color:var(--white)}

.eyebrow{display:inline-block;font-size:.78rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:var(--blue);margin-bottom:.6rem}
.section--navy .eyebrow{color:var(--accent)}
.h2{font-size:clamp(1.55rem,3.2vw,2.15rem);margin-bottom:.75rem}
.lead{font-size:1.05rem;color:var(--muted);max-width:620px}
.section--navy .lead{color:#C4D4E6}
.section-head{max-width:680px;margin-bottom:2rem}
.section-head--row{max-width:none;display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:1rem 2rem}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:48px;padding:.75rem 1.35rem;border-radius:var(--radius-sm);font-family:inherit;font-size:.97rem;font-weight:600;line-height:1.2;text-align:center;border:2px solid transparent;cursor:pointer;transition:background-color .15s ease,border-color .15s ease,color .15s ease}
.btn-primary{background:var(--blue);color:var(--white);border-color:var(--blue)}
.btn-primary:hover{background:var(--blue-dark);border-color:var(--blue-dark);color:var(--white)}
.btn-secondary{background:var(--white);color:var(--navy);border-color:var(--border-strong)}
.btn-secondary:hover{border-color:var(--blue);color:var(--blue)}
.btn-light{background:var(--white);color:var(--navy);border-color:var(--white)}
.btn-light:hover{background:var(--ice);border-color:var(--ice);color:var(--navy)}
.btn-ghost-light{background:transparent;color:var(--white);border-color:rgba(255,255,255,.45)}
.btn-ghost-light:hover{border-color:var(--white);color:var(--white)}
.btn-group{display:flex;flex-wrap:wrap;gap:.75rem}
.link-arrow{font-weight:600;font-size:.94rem}
.link-arrow::after{content:' \2192'}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:var(--navy);border-bottom:1px solid rgba(255,255,255,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;min-height:var(--header-h)}
.brand{display:flex;align-items:center;gap:.7rem;color:var(--white);flex-shrink:0}
.brand:hover{color:var(--white)}
.brand img{width:48px;height:48px;border-radius:50%}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:1.15rem;font-weight:800;letter-spacing:-.01em}
.brand-name span{color:var(--accent)}
.brand-tag{font-size:.72rem;color:#9FB6D1}

.site-nav{display:flex;align-items:center;gap:.15rem}
.site-nav a{color:#D7E3F1;font-size:.93rem;font-weight:500;padding:.55rem .75rem;border-radius:6px}
.site-nav a:hover,.site-nav a[aria-current="page"]{color:var(--white);background:rgba(255,255,255,.08)}
.site-nav .btn{margin-left:.6rem;color:var(--white);padding:.6rem 1.15rem;min-height:44px}
.site-nav .btn:hover{background:var(--blue-dark)}

.nav-toggle{display:none;align-items:center;justify-content:center;width:46px;height:46px;padding:0;background:transparent;border:1px solid rgba(255,255,255,.25);border-radius:var(--radius-sm);color:var(--white);cursor:pointer}
.nav-toggle-bars,.nav-toggle-bars::before,.nav-toggle-bars::after{display:block;width:20px;height:2px;background:currentColor;border-radius:2px;position:relative;transition:transform .2s ease,background-color .2s ease}
.nav-toggle-bars::before,.nav-toggle-bars::after{content:'';position:absolute;left:0}
.nav-toggle-bars::before{top:-6px}
.nav-toggle-bars::after{top:6px}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars{background:transparent}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::before{transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bars::after{transform:translateY(-6px) rotate(-45deg)}

/* ---------- Hero (homepage) ---------- */
.hero{background:var(--ice);padding:clamp(2.5rem,6vw,4.5rem) 0}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,5vw,4rem);align-items:center}
.hero h1{font-size:clamp(1.9rem,4.3vw,3rem);font-weight:800;letter-spacing:-.025em;margin-bottom:.9rem}
.hero-services{font-size:1rem;font-weight:600;color:var(--blue);margin-bottom:1rem}
.hero-desc{font-size:1.08rem;color:var(--muted);max-width:540px;margin-bottom:1.6rem}
.hero .btn-group{margin-bottom:1.4rem}
.hero-meta{display:flex;flex-wrap:wrap;gap:.4rem 1.25rem;font-size:.9rem;color:var(--muted)}
.hero-meta li{display:flex;align-items:center;gap:.45rem}
.hero-meta li::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--accent);flex-shrink:0}
.media{margin:0;position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--border);background:var(--navy)}
.media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.media figcaption{position:absolute;left:0;right:0;bottom:0;padding:.6rem 1rem;background:rgba(11,31,58,.82);color:var(--white);font-size:.84rem;font-weight:500}

/* ---------- Cards ---------- */
.card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.5rem}
.card h3{font-size:1.12rem;margin-bottom:.4rem}
.card p{color:var(--muted);font-size:.95rem}
.icon{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:12px;background:var(--ice);color:var(--blue);margin-bottom:1rem;flex-shrink:0}
.icon svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* ---------- Markets ---------- */
.markets-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}
.market{display:flex;flex-direction:column;border-top:4px solid var(--blue)}
.market--residential{border-top-color:var(--accent)}
.market--marine{border-top-color:var(--navy)}
.market h3{font-size:1.3rem}
.market p{margin-bottom:.9rem}
.market-for{font-size:.85rem!important;color:var(--navy)!important;font-weight:500;margin-bottom:1.1rem!important}
.market .link-arrow{margin-top:auto}

/* ---------- Horizontal service scroller ---------- */
.scroller-nav{display:flex;gap:.5rem}
.scroller-btn{width:44px;height:44px;border-radius:50%;border:1px solid var(--border-strong);background:var(--white);color:var(--navy);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;font-size:1.1rem}
.scroller-btn:hover{border-color:var(--blue);color:var(--blue)}
.scroller-btn:disabled{opacity:.4;cursor:default}
.svc-track{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(250px,280px);gap:1.1rem;overflow-x:auto;overscroll-behavior-x:contain;scroll-snap-type:x mandatory;scroll-padding-left:2px;padding:.25rem 2px 1.1rem;scrollbar-width:thin;scrollbar-color:var(--border-strong) transparent}
.svc-track::-webkit-scrollbar{height:8px}
.svc-track::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:8px}
.svc-card{display:flex;flex-direction:column;scroll-snap-align:start}
.svc-card p{margin-bottom:1.2rem}
.svc-card .btn{margin-top:auto;min-height:42px;padding:.55rem 1rem;font-size:.9rem;align-self:flex-start}

/* ---------- Marine highlight ---------- */
.marine-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(2rem,5vw,3.5rem);align-items:center}
.marine-grid .lead{margin-bottom:1.75rem}
.photo-grid{display:grid;grid-template-columns:1fr 1fr;gap:.85rem}
.photo-grid .media:first-child{grid-column:1 / -1}
.photo-grid .media:first-child img{aspect-ratio:16/9}
.photo-grid--pair .media:first-child{grid-column:auto}
.photo-grid--pair .media:first-child img{aspect-ratio:4/3}
.section--navy .media{border-color:rgba(255,255,255,.12);box-shadow:none}

/* ---------- Why us ---------- */
.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem}
.why-grid h3{font-size:1.02rem}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(1.5rem,4vw,3rem);align-items:start}
.contact-list li{padding:1rem 0;border-bottom:1px solid var(--border)}
.contact-list li:first-child{padding-top:0}
.contact-list li:last-child{border-bottom:0;padding-bottom:0}
.contact-list h3{font-size:.8rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:.35rem}
.contact-list a{display:inline-block;font-weight:600;font-size:1.05rem;margin-right:1.1rem}
.contact-list small{display:block;margin-top:.25rem;font-size:.85rem;color:var(--muted)}
.btn-whatsapp{background:#1FA855;border-color:#1FA855;color:var(--white)!important;min-height:44px;padding:.55rem 1.05rem;font-size:.92rem!important}
.btn-whatsapp:hover{background:#178A45;border-color:#178A45}
.btn-whatsapp svg{width:16px;height:16px;fill:currentColor}

.form-card{padding:clamp(1.25rem,3vw,2rem)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.form-field{display:flex;flex-direction:column;gap:.35rem;margin-bottom:1rem;min-width:0}
.form-field label{font-size:.85rem;font-weight:600;color:var(--navy)}
.form-field input,.form-field select,.form-field textarea{width:100%;font-family:inherit;font-size:1rem;color:var(--text);background:var(--white);border:1px solid var(--border-strong);border-radius:var(--radius-sm);padding:.7rem .85rem;min-height:46px}
.form-field textarea{min-height:110px;resize:vertical}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(22,119,200,.15)}
.form-footer{display:flex;flex-wrap:wrap;align-items:center;gap:1rem;margin-top:.25rem}
.form-note{font-size:.84rem;color:var(--muted)}
#form-success{display:none;margin-top:1rem;padding:.8rem 1rem;border-radius:var(--radius-sm);background:#E8F7EE;border:1px solid #BDE5CC;color:#14532D;font-weight:500}

/* ---------- Service pages ---------- */
.page-hero{background:var(--ice);padding:clamp(2rem,5vw,3.5rem) 0}
.page-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(2rem,5vw,3.5rem);align-items:center}
.page-hero-grid--single{grid-template-columns:1fr;max-width:760px}
.breadcrumb{list-style:none;padding:0;margin:0 0 1rem;display:flex;flex-wrap:wrap;gap:.4rem;font-size:.85rem;color:var(--muted);margin-bottom:1rem}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--blue)}
.breadcrumb li+li::before{content:'/';margin-right:.4rem;color:var(--border-strong)}
.page-hero h1{font-size:clamp(1.8rem,4vw,2.6rem);font-weight:800;letter-spacing:-.02em;margin-bottom:.9rem}
.page-hero .lead{margin-bottom:1.5rem}

.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.1rem}
.feature-grid .card{padding:1.35rem}
.feature-grid .card h3{font-size:1.04rem}

.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(1.5rem,4vw,3rem);align-items:start}
.check-list{display:grid;gap:.7rem}
.check-list li{position:relative;padding-left:1.8rem;color:var(--text)}
.check-list li::before{content:'';position:absolute;left:0;top:.28em;width:1.1rem;height:1.1rem;border-radius:50%;background:var(--white) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' fill='none' stroke='%231677C8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/80% no-repeat;border:1px solid #BFE2F4}
.brand-list{display:flex;flex-wrap:wrap;gap:.45rem}
.brand-list li{font-size:.88rem;font-weight:500;color:var(--navy);background:var(--white);border:1px solid var(--border);border-radius:var(--radius-sm);padding:.35rem .8rem}
.sub-h{font-size:1.15rem;margin-bottom:1rem}

.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:1.1rem;counter-reset:step}
.steps .card{position:relative;padding-top:1.35rem}
.steps .card::before{counter-increment:step;content:counter(step);display:flex;align-items:center;justify-content:center;width:2.1rem;height:2.1rem;border-radius:50%;background:var(--blue);color:var(--white);font-weight:700;font-size:.9rem;margin-bottom:.8rem}

.video-card{padding:0;overflow:hidden}
.video-frame{position:relative;background:var(--navy);aspect-ratio:16/9}
.video-frame video{width:100%;height:100%;object-fit:cover}
.video-play{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.6rem;width:100%;border:0;background:rgba(11,31,58,.45);color:var(--white);font-family:inherit;font-size:.9rem;font-weight:600;cursor:pointer}
.video-play:hover{background:rgba(11,31,58,.3)}
.video-play-icon{width:64px;height:64px;border-radius:50%;background:var(--blue);display:flex;align-items:center;justify-content:center}
.video-play-icon::after{content:'';margin-left:5px;border-style:solid;border-width:11px 0 11px 18px;border-color:transparent transparent transparent var(--white)}
.video-frame.is-playing .video-play{display:none}
.video-meta{padding:.9rem 1.2rem;font-size:.88rem;color:var(--muted)}
.video-meta strong{display:block;color:var(--navy);font-size:.95rem}

.related{display:flex;flex-wrap:wrap;align-items:center;gap:.6rem 1.5rem;margin-top:2.5rem;padding-top:1.5rem;border-top:1px solid var(--border)}
.related span{font-size:.85rem;font-weight:600;color:var(--muted)}

/* ---------- Closing CTA ---------- */
.cta{background:var(--navy);color:#D7E3F1;padding:clamp(2.75rem,6vw,4rem) 0;border-top:4px solid var(--blue)}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1.5rem}
.cta h2{color:var(--white);font-size:clamp(1.45rem,3vw,2rem);margin-bottom:.4rem}
.cta p{color:#C4D4E6;max-width:540px}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy-deep);color:#A9BED6;padding:3rem 0 1.5rem;font-size:.92rem}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:2rem}
.footer-brand p{margin-top:.9rem;max-width:300px}
.site-footer h4{color:var(--white);font-size:.9rem;font-weight:600;margin-bottom:.8rem}
.footer-col a{display:block;color:#A9BED6;padding:.2rem 0}
.footer-col a:hover{color:var(--white)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:.75rem;margin-top:2.5rem;padding-top:1.25rem;border-top:1px solid rgba(255,255,255,.1);font-size:.84rem}

/* ---------- WhatsApp float ---------- */
.wa-float{position:fixed;right:1rem;bottom:1rem;z-index:90;width:54px;height:54px;border-radius:50%;background:#1FA855;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 14px rgba(0,0,0,.2)}
.wa-float:hover{background:#178A45}
.wa-float svg{width:28px;height:28px;fill:var(--white)}

/* ==========================================================
   Responsive
   ========================================================== */
@media (max-width:1100px){
  .site-nav a{padding:.5rem .55rem;font-size:.9rem}
  .why-grid{grid-template-columns:repeat(2,1fr)}
}

@media (max-width:960px){
  :root{--header-h:64px}
  .nav-toggle{display:inline-flex}
  .site-nav{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--navy);border-top:1px solid rgba(255,255,255,.1);padding:.5rem var(--gutter) 1.25rem;box-shadow:0 12px 24px rgba(0,0,0,.25);max-height:calc(100vh - var(--header-h));overflow-y:auto}
  .site-nav.is-open{display:flex}
  .site-nav a{padding:.85rem .25rem;font-size:1rem;border-radius:0;border-bottom:1px solid rgba(255,255,255,.08)}
  .site-nav a:hover,.site-nav a[aria-current="page"]{background:transparent}
  .site-nav .btn{margin:1rem 0 0;border-bottom:0;min-height:50px}

  .hero-grid,.page-hero-grid,.marine-grid,.contact-grid,.split{grid-template-columns:1fr}
  .hero .media,.page-hero .media,.page-hero .video-card{max-width:620px}
  .markets-grid,.feature-grid,.steps{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1}
}

@media (max-width:640px){
  .brand img{width:42px;height:42px}
  .brand-tag{display:none}
  .hero .btn-group .btn,.page-hero .btn-group .btn,.cta .btn-group .btn{flex:1 1 100%}
  .markets-grid,.feature-grid,.steps,.form-row{grid-template-columns:1fr}
  .why-grid{grid-template-columns:1fr 1fr;gap:.75rem}
  .why-grid .card{padding:1.1rem}
  .why-grid .icon{width:40px;height:40px;margin-bottom:.7rem}
  .form-row{gap:0}
  .svc-track{grid-auto-columns:78%}
  .scroller-nav{display:none}
  .footer-grid{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta .btn-group{width:100%}
  .form-footer .btn{width:100%}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important}
}