/* =========================================================
   Dr Tank Cleaning Services — Design System
   Palette: deep teal (trust/water), warm gold (care), cream
   Type: Fraunces (headlines) + Manrope (body/UI)
   ========================================================= */

:root{
  --teal-900:#0B3D3D;
  --teal-700:#0F5C5C;
  --teal-500:#3DA5A0;
  --teal-100:#EAF4F2;
  --cream:#F7F4EE;
  --cream-dark:#EFEAE0;
  --charcoal:#16302E;
  --gold:#C9A227;
  --gold-dark:#A9840F;
  --white:#FFFFFF;
  --danger:#B34237;

  --font-head:"Fraunces", Georgia, serif;
  --font-body:"Manrope", -apple-system, BlinkMacSystemFont, sans-serif;

  --radius-sm:6px;
  --radius-md:14px;
  --radius-lg:28px;

  --shadow-soft:0 10px 30px rgba(15,92,92,0.12);
  --header-h:76px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--charcoal);
  background:var(--cream);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{
  font-family:var(--font-head);
  color:var(--teal-900);
  line-height:1.15;
  margin:0 0 0.5em;
  font-weight:600;
}
h1{font-size:clamp(2rem,4.4vw,3.4rem);}
h2{font-size:clamp(1.6rem,3vw,2.4rem);}
h3{font-size:1.3rem;}
p{margin:0 0 1em;max-width:68ch;}
ul{margin:0;padding:0;list-style:none;}
.container{
  width:100%;
  max-width:1180px;
  margin:0 auto;
  padding:0 24px;
}
section{padding:76px 0;}
.section-tight{padding:48px 0;}
.eyebrow-plain{
  color:var(--teal-700);
  font-weight:700;
  font-size:0.92rem;
  margin-bottom:6px;
  display:block;
}
.lede{font-size:1.14rem;color:#3C4A48;}
.center{text-align:center;margin-left:auto;margin-right:auto;}
.visually-hidden{
  position:absolute;width:1px;height:1px;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;
}
:focus-visible{outline:3px solid var(--gold);outline-offset:3px;}

/* ---------------- Buttons ---------------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:14px 26px;
  border-radius:999px;
  font-weight:700;
  font-size:1rem;
  border:2px solid transparent;
  cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease;
  white-space:nowrap;
}
.btn svg{flex-shrink:0;}
.btn-call{
  background:var(--teal-700);
  color:var(--white);
}
.btn-whatsapp{
  background:#25D366;
  color:var(--white);
}
.btn-outline{
  background:transparent;
  border-color:var(--teal-700);
  color:var(--teal-700);
}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow-soft);}

/* hover-blink pulse: buttons flash brighter on hover to draw the eye */
@keyframes hoverBlink{
  0%,100%{filter:brightness(1);}
  50%{filter:brightness(1.35);}
}
.btn:hover, .nav-links a:hover, .service-tab:hover{
  animation:hoverBlink 0.7s ease-in-out infinite;
}

/* ---------------- Sticky Header ---------------- */
.top-strip{
  background:var(--teal-900);
  color:var(--teal-100);
  font-size:0.85rem;
}
.top-strip .container{
  display:flex;justify-content:space-between;align-items:center;gap:12px;
  padding-top:6px;padding-bottom:6px;flex-wrap:wrap;
}
.top-strip a{color:var(--teal-100);}
.top-strip .addr-line{display:flex;align-items:center;gap:6px;}

.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(247,244,238,0.96);
  backdrop-filter:blur(6px);
  border-bottom:1px solid rgba(15,92,92,0.12);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:18px;height:var(--header-h);
}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--font-head);}
.brand-mark{
  width:42px;height:42px;border-radius:50%;
  background:var(--teal-700);color:var(--white);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:1.1rem;flex-shrink:0;
}
.brand-text{line-height:1.1;}
.brand-text strong{display:block;font-size:1.12rem;color:var(--teal-900);}
.brand-text span{font-size:0.72rem;color:var(--teal-700);font-family:var(--font-body);font-weight:600;letter-spacing:.02em;}

.nav-links{display:flex;gap:26px;align-items:center;}
.nav-links a{font-weight:600;color:var(--charcoal);padding:6px 2px;position:relative;}
.nav-links a[aria-current="page"]{color:var(--teal-700);}

.header-cta{display:flex;align-items:center;gap:12px;}

/* Blinking sticky phone number badge */
.phone-badge{
  display:flex;align-items:center;gap:8px;
  background:var(--danger);
  color:var(--white);
  padding:9px 16px;
  border-radius:999px;
  font-weight:800;
  font-size:0.98rem;
  letter-spacing:0.01em;
}
@keyframes blinkNumber{
  0%,60%,100%{opacity:1;}
  30%{opacity:0.45;}
}
.phone-badge .blink-dot{
  width:9px;height:9px;border-radius:50%;background:#FFDE59;
  animation:blinkNumber 1.4s ease-in-out infinite;
  flex-shrink:0;
}
.phone-badge span.num{animation:blinkNumber 1.4s ease-in-out infinite;}

.menu-toggle{
  display:none;background:none;border:none;cursor:pointer;padding:6px;
}
.menu-toggle span{
  display:block;width:26px;height:3px;background:var(--teal-900);
  margin:5px 0;border-radius:2px;
}

/* ---------------- Hero ---------------- */
.hero{
  padding:60px 0 70px;
  background:linear-gradient(180deg,var(--cream) 0%, var(--teal-100) 100%);
  overflow:hidden;
}
.hero .container{
  display:grid;grid-template-columns:1.05fr 0.95fr;gap:48px;align-items:center;
}
.hero-badges{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px;}
.badge{
  background:var(--white);border:1px solid rgba(15,92,92,0.18);
  color:var(--teal-700);font-weight:700;font-size:0.8rem;
  padding:6px 12px;border-radius:999px;
}
.hero h1{margin-bottom:0.4em;}
.hero .accent{color:var(--gold-dark);}
.hero-ctas{display:flex;gap:14px;flex-wrap:wrap;margin-top:26px;}
.hero-points{display:flex;gap:22px;flex-wrap:wrap;margin-top:34px;}
.hero-points li{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--teal-900);font-size:0.95rem;}
.hero-visual img{border-radius:var(--radius-lg);}
.rating-chip{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--white);border-radius:999px;padding:8px 14px;
  box-shadow:var(--shadow-soft);margin-top:-30px;margin-left:20px;position:relative;z-index:2;
  font-weight:700;font-size:0.9rem;
}

/* ---------------- Trust strip ---------------- */
.trust-strip{background:var(--teal-900);color:var(--teal-100);padding:22px 0;}
.trust-strip .container{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:16px;text-align:center;
}
.trust-strip .stat strong{display:block;font-family:var(--font-head);font-size:1.5rem;color:var(--white);}
.trust-strip .stat span{font-size:0.8rem;opacity:0.85;}

/* ---------------- Services ---------------- */
.services-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:28px;margin-top:38px;
}
.service-card{
  background:var(--white);
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid rgba(15,92,92,0.1);
  display:flex;flex-direction:column;
  transition:box-shadow .2s ease, border-color .2s ease;
}
.service-card:hover{box-shadow:var(--shadow-soft);border-color:var(--teal-500);}
.service-card img{width:100%;height:auto;}
.service-card-body{padding:26px;display:flex;flex-direction:column;gap:10px;flex:1;}
.service-card-body ul{margin:6px 0 12px;display:grid;gap:6px;}
.service-card-body ul li{display:flex;gap:8px;font-size:0.95rem;color:#3C4A48;}
.service-card-actions{display:flex;gap:10px;margin-top:auto;flex-wrap:wrap;}
.service-card-actions .btn{padding:10px 18px;font-size:0.9rem;}

/* small icon services (why choose us) */
.icon-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:38px;
}
.icon-card{
  background:var(--white);padding:24px 20px;border-radius:var(--radius-md);
  text-align:left;border:1px solid rgba(15,92,92,0.08);
}
.icon-card .icon-wrap{
  width:52px;height:52px;border-radius:14px;background:var(--teal-100);
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;color:var(--teal-700);
}
.icon-card h3{font-size:1.05rem;margin-bottom:6px;}
.icon-card p{font-size:0.9rem;color:#4A5654;margin:0;}

/* ---------------- Process steps ---------------- */
.process-list{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:36px;counter-reset:step;
}
.process-item{position:relative;padding:26px 20px 20px;background:var(--white);border-radius:var(--radius-md);border:1px solid rgba(15,92,92,0.08);}
.process-item::before{
  counter-increment:step;content:counter(step);
  position:absolute;top:-16px;left:20px;
  width:34px;height:34px;border-radius:50%;
  background:var(--gold);color:var(--white);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-family:var(--font-head);
}
.process-item h3{margin-top:10px;font-size:1.02rem;}
.process-item p{font-size:0.9rem;color:#4A5654;margin:0;}

/* ---------------- Areas / local keywords ---------------- */
.areas-wrap{
  background:var(--teal-100);border-radius:var(--radius-lg);padding:40px;margin-top:10px;
}
.areas-list{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;
}
.areas-list a{
  background:var(--white);border:1px solid rgba(15,92,92,0.15);
  padding:8px 14px;border-radius:999px;font-size:0.88rem;font-weight:600;color:var(--teal-900);
  transition:background .15s ease,color .15s ease;
}
.areas-list a:hover{background:var(--teal-700);color:var(--white);}

/* ---------------- Before / After ---------------- */
.ba-wrap{margin-top:30px;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-soft);}
.ba-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:34px;}
.ba-card{background:var(--white);border-radius:var(--radius-md);overflow:hidden;border:1px solid rgba(15,92,92,0.1);}
.ba-card figcaption{padding:16px 20px;font-weight:700;color:var(--teal-900);}

/* ---------------- Testimonials ---------------- */
.testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:36px;}
.testi-card{
  background:var(--white);padding:26px;border-radius:var(--radius-md);border:1px solid rgba(15,92,92,0.08);
  display:flex;flex-direction:column;gap:12px;
}
.testi-stars{color:var(--gold);letter-spacing:2px;}
.testi-name{font-weight:700;color:var(--teal-900);font-size:0.92rem;margin-top:6px;}
.testi-loc{font-size:0.8rem;color:#6B7573;}

/* ---------------- FAQ ---------------- */
.faq-list{max-width:820px;margin:36px auto 0;display:grid;gap:12px;}
.faq-item{background:var(--white);border-radius:var(--radius-md);border:1px solid rgba(15,92,92,0.1);overflow:hidden;}
.faq-item summary{
  cursor:pointer;padding:18px 22px;font-weight:700;color:var(--teal-900);
  display:flex;justify-content:space-between;align-items:center;gap:14px;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:1.4rem;color:var(--teal-700);flex-shrink:0;font-weight:400;
  transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item .faq-body{padding:0 22px 20px;color:#3C4A48;}

/* ---------------- CTA banner ---------------- */
.cta-banner{
  background:linear-gradient(120deg,var(--teal-900),var(--teal-700));
  color:var(--white);border-radius:var(--radius-lg);
  padding:48px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;
}
.cta-banner h2{color:var(--white);margin-bottom:6px;}
.cta-banner p{color:var(--teal-100);margin:0;}
.cta-banner .btn-outline{border-color:var(--white);color:var(--white);}

/* ---------------- Contact / Map ---------------- */
.contact-wrap{display:grid;grid-template-columns:0.9fr 1.1fr;gap:40px;margin-top:30px;align-items:start;}
.contact-card{background:var(--white);border-radius:var(--radius-md);padding:30px;border:1px solid rgba(15,92,92,0.1);}
.contact-card dl{margin:18px 0 0;display:grid;gap:16px;}
.contact-card dt{font-weight:700;color:var(--teal-900);font-size:0.85rem;}
.contact-card dd{margin:2px 0 0;}
.map-frame{border-radius:var(--radius-md);overflow:hidden;border:1px solid rgba(15,92,92,0.1);min-height:340px;}
.map-frame iframe{width:100%;height:100%;min-height:340px;border:0;display:block;}

/* ---------------- Breadcrumb ---------------- */
.breadcrumb{padding:16px 0 0;font-size:0.85rem;color:#5B6664;}
.breadcrumb a{color:var(--teal-700);font-weight:600;}
.breadcrumb span{margin:0 6px;}

/* ---------------- Service detail page ---------------- */
.service-hero{
  background:var(--teal-100);padding:50px 0 60px;
}
.service-hero .container{display:grid;grid-template-columns:1.1fr 0.9fr;gap:44px;align-items:center;}
.spec-list{display:grid;gap:12px;margin-top:20px;}
.spec-list li{display:flex;gap:10px;align-items:flex-start;font-weight:600;color:var(--teal-900);}
.detail-block + .detail-block{margin-top:12px;}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start;}
.checklist{display:grid;gap:10px;margin-top:16px;}
.checklist li{display:flex;gap:10px;align-items:flex-start;}
.pricing-note{
  background:var(--cream-dark);border-left:4px solid var(--gold);
  padding:18px 22px;border-radius:var(--radius-sm);margin-top:20px;font-size:0.95rem;
}
.related-service{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  background:var(--white);border:1px solid rgba(15,92,92,0.1);border-radius:var(--radius-md);
  padding:22px 26px;margin-top:16px;
}

/* ---------------- Footer ---------------- */
.site-footer{background:var(--charcoal);color:#CFE0DD;padding:60px 0 24px;margin-top:60px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px;}
.site-footer h4{color:var(--white);font-family:var(--font-body);font-size:0.95rem;margin-bottom:14px;}
.site-footer a{color:#B9CCC8;}
.site-footer a:hover{color:var(--gold);}
.footer-links{display:grid;gap:10px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.12);margin-top:40px;padding-top:20px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:0.82rem;color:#93A6A2;
}

/* ---------------- Floating action buttons ---------------- */
.fab-stack{
  position:fixed;right:20px;bottom:20px;z-index:1200;
  display:flex;flex-direction:column;gap:14px;align-items:flex-end;
}
.fab{
  width:58px;height:58px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 22px rgba(0,0,0,0.25);
  color:var(--white);
}
.fab-whatsapp{background:#25D366;}
.fab-call{background:var(--teal-700);}
@keyframes fabPulse{
  0%{box-shadow:0 0 0 0 rgba(37,211,102,0.55);}
  70%{box-shadow:0 0 0 16px rgba(37,211,102,0);}
  100%{box-shadow:0 0 0 0 rgba(37,211,102,0);}
}
.fab-whatsapp{animation:fabPulse 2.2s infinite;}
.fab:hover{animation:hoverBlink 0.6s ease-in-out infinite;}

/* ---------------- Mobile nav ---------------- */
@media (max-width:960px){
  .services-grid{grid-template-columns:1fr;}
  .icon-grid{grid-template-columns:repeat(2,1fr);}
  .process-list{grid-template-columns:repeat(2,1fr);}
  .testi-grid{grid-template-columns:1fr;}
  .hero .container{grid-template-columns:1fr;}
  .hero-visual{order:-1;}
  .contact-wrap{grid-template-columns:1fr;}
  .two-col{grid-template-columns:1fr;}
  .service-hero .container{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:720px){
  .top-strip{display:none;}
  .nav-links{
    position:fixed;top:var(--header-h);left:0;right:0;
    background:var(--cream);flex-direction:column;align-items:flex-start;
    padding:18px 24px 26px;gap:14px;border-bottom:1px solid rgba(15,92,92,0.15);
    transform:translateY(-8px);opacity:0;pointer-events:none;transition:all .2s ease;
  }
  .nav-links.open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .menu-toggle{display:block;}
  .header-cta .btn-outline-text{display:none;}
  section{padding:52px 0;}
  .icon-grid{grid-template-columns:1fr;}
  .process-list{grid-template-columns:1fr;}
  .ba-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-banner{padding:32px;flex-direction:column;text-align:center;}
  .phone-badge span.num{display:none;}
  .phone-badge{padding:10px;}
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.001ms !important;animation-iteration-count:1 !important;transition-duration:0.001ms !important;}
}