/* =========================================================
   Lucknow RO Service — stylesheet
   Tokens
   ========================================================= */
:root{
  --deep:      #063970;   /* primary deep sapphire */
  --deep-2:    #0A4E8C;
  --bright:    #0EA5E9;   /* sky/cyan accent */
  --bright-2:  #28C7F0;
  --teal:      #12B3A8;   /* secondary accent */
  --whatsapp:  #25D366;
  --whatsapp-d:#1DA851;
  --ink:       #0A1B2B;
  --ink-soft:  #48607A;
  --mist:      #EFF8FC;
  --mist-2:    #E3F3FB;
  --white:     #FFFFFF;
  --line:      #DCEBF3;

  --font-head: "Sora", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;

  --radius-s: 10px;
  --radius-m: 16px;
  --radius-l: 26px;
  --shadow-soft: 0 10px 30px -12px rgba(6,57,112,.25);
  --shadow-card: 0 14px 34px -18px rgba(6,57,112,.3);
  --ease: cubic-bezier(.22,.9,.3,1);
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}

body{
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--white);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1,h2,h3,h4{
  font-family: var(--font-head);
  color: var(--deep);
  margin: 0 0 .5em;
  line-height: 1.15;
  letter-spacing: -.01em;
}

p{ margin: 0 0 1em; color: var(--ink-soft); }
a{ color: inherit; text-decoration: none; }
img{ max-width: 100%; display: block; }
svg{ display: block; }

.wrap{
  width: min(1180px, 92%);
  margin-inline: auto;
}

:focus-visible{
  outline: 3px solid var(--bright);
  outline-offset: 3px;
}

/* =========================================================
   Buttons
   ========================================================= */
.btn{
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: .95rem;
  padding: .8rem 1.4rem;
  border-radius: 999px;
  border: 0;
  cursor: pointer;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), background .3s;
  white-space: nowrap;
}
.btn em{ font-style: normal; display:block; font-size:.72em; font-weight:500; opacity:.85; }
.btn span em{ margin-top:.1em; }
.btn-primary{
  background: linear-gradient(135deg, var(--bright-2), var(--deep));
  color: var(--white);
  box-shadow: var(--shadow-soft);
}
.btn-primary:hover{ transform: translateY(-3px); box-shadow: 0 16px 34px -12px rgba(6,57,112,.45); }
.btn-whatsapp{
  background: linear-gradient(135deg, #34E08A, var(--whatsapp-d));
  color: var(--white);
  box-shadow: 0 10px 30px -12px rgba(29,168,81,.5);
}
.btn-whatsapp:hover{ transform: translateY(-3px); box-shadow: 0 16px 34px -12px rgba(29,168,81,.55); }
.btn-outline{
  background: transparent;
  color: var(--deep);
  border: 1.5px solid var(--deep);
}
.btn-outline:hover{ background: var(--deep); color: var(--white); }
.btn-lg{ padding: 1rem 1.7rem; font-size: 1rem; }

/* =========================================================
   Decorative bubble field
   ========================================================= */
.bubble-field{
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.bubble{
  position: absolute;
  bottom: -60px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.85), rgba(14,165,233,.12));
  border: 1px solid rgba(14,165,233,.25);
  opacity: 0;
  animation: rise linear infinite;
}
@keyframes rise{
  0%{ transform: translateY(0) translateX(0); opacity: 0; }
  8%{ opacity: .55; }
  90%{ opacity: .35; }
  100%{ transform: translateY(-115vh) translateX(var(--drift, 30px)); opacity: 0; }
}

/* =========================================================
   Top bar
   ========================================================= */
.topbar{
  background: var(--ink);
  color: #cfe4f2;
  font-size: .82rem;
  position: relative;
  z-index: 30;
}
.topbar-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .5rem 0;
  flex-wrap: wrap;
}
.topbar-item{
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  color: #cfe4f2;
  transition: color .25s;
}
.topbar-item em{ font-style: normal; opacity:.7; margin-left:.35em; }
.topbar-item:hover{ color: var(--bright-2); }
.topbar-item.whatsapp:hover{ color: var(--whatsapp); }
.topbar-item.location{ color: #9fb9cc; cursor: default; }
.topbar-item.location:hover{ color: #9fb9cc; }

/* =========================================================
   Header
   ========================================================= */
.site-header{
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  border-bottom: 1px solid transparent;
  transition: box-shadow .35s var(--ease), border-color .35s var(--ease), padding .3s var(--ease);
}
.site-header.scrolled{
  box-shadow: 0 8px 24px -16px rgba(6,57,112,.35);
  border-bottom-color: var(--line);
}
.header-inner{
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: .9rem 0;
}
.brand{
  display: flex;
  align-items: center;
  gap: .6rem;
  margin-right: auto;
}
.brand-text{ display: flex; flex-direction: column; line-height: 1.05; }
.brand-text strong{ font-family: var(--font-head); font-size: 1.15rem; color: var(--deep); letter-spacing: .01em; }
.brand-text small{ font-size: .62rem; letter-spacing: .18em; color: var(--bright); font-weight: 700; }

.main-nav{
  display: flex;
  gap: 1.7rem;
}
.main-nav a{
  position: relative;
  font-weight: 600;
  font-size: .93rem;
  color: var(--ink);
  padding: .3rem 0;
  transition: color .25s;
}
.main-nav a::after{
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--bright);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--ease);
}
.main-nav a:hover, .main-nav a.active{ color: var(--deep); }
.main-nav a:hover::after, .main-nav a.active::after{ transform: scaleX(1); }

.header-cta{ margin-left: .5rem; }

.nav-toggle{
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: .4rem;
}
.nav-toggle span{
  width: 24px; height: 2px; background: var(--deep); border-radius: 2px;
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

/* =========================================================
   Hero
   ========================================================= */
.hero{
  position: relative;
  padding: 4.2rem 0 6rem;
  background:
    radial-gradient(1100px 480px at 85% -10%, rgba(14,165,233,.16), transparent 60%),
    linear-gradient(180deg, var(--mist) 0%, var(--white) 100%);
  overflow: hidden;
}
.hero-wave{
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  line-height: 0;
  color: var(--white);
  z-index: 1;
}
.hero-wave svg{ width: 100%; height: 90px; }
.hero-wave path{ fill: currentColor; }

.hero-inner{
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 3rem;
  align-items: center;
}

[data-reveal]{
  opacity: 0;
  transform: translateY(22px);
  animation: reveal .9s var(--ease) forwards;
}
.hero-visual[data-reveal]{ animation-delay: .18s; }
@keyframes reveal{ to{ opacity: 1; transform: translateY(0); } }

.eyebrow-tag{
  display: inline-block;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: .78rem;
  color: var(--teal);
  background: rgba(18,179,168,.1);
  border: 1px solid rgba(18,179,168,.25);
  padding: .35rem .9rem;
  border-radius: 999px;
  margin-bottom: 1.1rem;
}
.hero h1{
  font-size: clamp(2.3rem, 4.2vw, 3.4rem);
  font-weight: 800;
}
.hero-sub{
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--bright);
  margin-bottom: .6rem;
}
.hero-desc{ max-width: 46ch; font-size: 1.02rem; }
.hero-actions{
  display: flex;
  gap: 1rem;
  margin-top: 1.6rem;
  flex-wrap: wrap;
}

.hero-visual{ position: relative; display: flex; justify-content: center; }
.drop-frame{
  position: relative;
  width: min(420px, 100%);
  aspect-ratio: 1/1;
  border-radius: 46% 54% 58% 42% / 50% 46% 54% 50%;
  overflow: hidden;
  background: linear-gradient(160deg, var(--mist-2), var(--white));
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
  display: flex; align-items: center; justify-content: center;
}
.drop-frame img{ width: 100%; height: 100%; object-fit: cover; }
.drop-frame.img-fallback{ padding: 2rem; }
.fallback-note{
  display: none;
  flex-direction: column;
  align-items: center;
  gap: .6rem;
  color: var(--ink-soft);
  font-size: .82rem;
  text-align: center;
}
.fallback-note code{
  background: var(--mist-2);
  padding: .15rem .5rem;
  border-radius: 6px;
  color: var(--deep);
  font-size: .78rem;
}
.img-fallback .fallback-note{ display: flex; }
.ripple{
  position: absolute;
  border-radius: 50%;
  border: 1.5px solid rgba(14,165,233,.35);
  animation: expand 3.6s var(--ease) infinite;
}
.ripple.r1{ width: 60%; height: 60%; top: 20%; left: 20%; }
.ripple.r2{ width: 80%; height: 80%; top: 10%; left: 10%; animation-delay: 1.2s; }
@keyframes expand{
  0%{ transform: scale(.85); opacity: .55; }
  100%{ transform: scale(1.12); opacity: 0; }
}

/* =========================================================
   Stats strip
   ========================================================= */
.stats-strip{
  background: linear-gradient(120deg, var(--deep), var(--deep-2));
  position: relative;
  z-index: 2;
  margin-top: -1px;
}
.stats-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 2.4rem 0;
}
.stat{
  text-align: center;
  color: var(--white);
  border-right: 1px solid rgba(255,255,255,.12);
}
.stat:last-child{ border-right: 0; }
.stat-num{
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  font-weight: 800;
  color: var(--bright-2);
}
.stat-num::after{ content: "+"; }
.stat-label{
  display: block;
  font-size: .82rem;
  color: #bcdcee;
  margin-top: .25rem;
}

/* =========================================================
   Section shared
   ========================================================= */
.section{ padding: 5.5rem 0; }
.section-head{
  max-width: 640px;
  margin: 0 auto 3rem;
  text-align: center;
}
.section-head h2{ font-size: clamp(1.7rem, 3vw, 2.2rem); }
.section-head p{ margin: 0; }

/* =========================================================
   Brands
   ========================================================= */
.brands-section{ background: var(--mist); }
.brand-grid{
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 1rem;
}
.brand-chip{
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  height: 84px;
  display: flex; align-items: center; justify-content: center;
  padding: .8rem 1rem;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
}
.brand-chip:hover{ transform: translateY(-4px); box-shadow: var(--shadow-card); border-color: var(--bright); }
.brand-chip img{ max-height: 40px; width: auto; object-fit: contain; }
.brand-fallback{
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--deep-2);
  font-size: .92rem;
  text-align: center;
}
.brand-chip.more{
  background: linear-gradient(135deg, var(--bright), var(--deep));
  color: var(--white);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: .85rem;
}

/* =========================================================
   Services
   ========================================================= */
.service-grid{
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.4rem;
}
.service-card{
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 3px solid var(--bright);
  border-radius: var(--radius-m);
  padding: 1.9rem 1.5rem;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s;
}
.service-card:hover{
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
  border-left-color: var(--teal);
}
.service-icon{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 54px; height: 54px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--mist-2), var(--white));
  color: var(--deep);
  margin-bottom: 1.1rem;
  transition: background .35s, color .35s;
}
.service-card:hover .service-icon{
  background: linear-gradient(135deg, var(--bright), var(--deep));
  color: var(--white);
}
.service-card h3{ font-size: 1.04rem; margin-bottom: .5rem; }
.service-card p{ font-size: .9rem; margin: 0; }

/* =========================================================
   Why choose us
   ========================================================= */
.why-section{
  background: var(--ink);
  color: var(--white);
  padding: 5.5rem 0;
}
.why-inner{
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 3.2rem;
  align-items: center;
}
.why-photo{
  position: relative;
  border-radius: var(--radius-l);
  overflow: hidden;
  aspect-ratio: 4/3.2;
  background: linear-gradient(160deg, #12324f, #0a1b2b);
  border: 1px solid rgba(255,255,255,.08);
  display: flex; align-items: center; justify-content: center;
}
.why-photo img{ width: 100%; height: 100%; object-fit: cover; }
.why-photo .fallback-note{ color: #8fb0c8; }
.why-photo .fallback-note code{ background: rgba(255,255,255,.08); color: var(--bright-2); }
.why-copy h2{ color: var(--white); }
.why-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.6rem 1.8rem;
  margin-top: 1.6rem;
}
.why-item{
  display: flex;
  gap: .9rem;
  align-items: flex-start;
}
.why-icon{
  flex: none;
  width: 42px; height: 42px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(14,165,233,.14);
  color: var(--bright-2);
}
.why-item h4{ font-family: var(--font-head); font-size: .98rem; margin: 0 0 .25rem; color: var(--white); }
.why-item p{ margin: 0; font-size: .86rem; color: #a9c3d6; }

/* =========================================================
   About + contact
   ========================================================= */
.about-contact{ background: var(--white); }
.about-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}
.about-copy p{ font-size: 1rem; max-width: 46ch; }

.contact-card{
  background: linear-gradient(160deg, var(--mist), var(--mist-2));
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: 2.2rem;
}
.contact-row{
  display: flex;
  align-items: center;
  gap: .8rem;
  padding: .7rem 0;
  border-bottom: 1px dashed var(--line);
  font-weight: 600;
  color: var(--deep);
  transition: color .25s, transform .25s;
}
.contact-row:last-of-type{ border-bottom: 0; }
a.contact-row:hover{ color: var(--bright); transform: translateX(4px); }
.contact-icon{
  width: 36px; height: 36px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  background: var(--white);
  color: var(--deep);
  border: 1px solid var(--line);
  flex: none;
}
.contact-icon.whatsapp{ color: var(--whatsapp-d); }
.contact-photo{
  margin-top: 1.4rem;
  border-radius: var(--radius-m);
  overflow: hidden;
  aspect-ratio: 16/7;
  background: var(--white);
  border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
}
.contact-photo img{ width: 100%; height: 100%; object-fit: cover; }
.fallback-note.small{ font-size: .74rem; }

/* =========================================================
   Footer
   ========================================================= */
.site-footer{
  background: var(--ink);
  color: #8fa9bd;
  padding: 1.8rem 0;
  font-size: .82rem;
}
.footer-inner{ text-align: center; }
.footer-inner p{ margin: 0 0 .35rem; color: inherit; }
.disclaimer{ color: #62839a; font-size: .76rem; }

/* =========================================================
   Floating WhatsApp button
   ========================================================= */
.float-whatsapp{
  position: fixed;
  right: 1.4rem;
  bottom: 1.4rem;
  width: 58px; height: 58px;
  border-radius: 50%;
  background: linear-gradient(135deg, #34E08A, var(--whatsapp-d));
  color: var(--white);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 14px 30px -10px rgba(29,168,81,.6);
  z-index: 50;
  animation: pulse 2.6s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{ box-shadow: 0 14px 30px -10px rgba(29,168,81,.6); }
  50%{ box-shadow: 0 14px 30px -6px rgba(29,168,81,.85), 0 0 0 10px rgba(37,211,102,.12); }
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 1024px){
  .service-grid{ grid-template-columns: repeat(3, 1fr); }
  .brand-grid{ grid-template-columns: repeat(4, 1fr); }
  .why-inner, .about-grid{ grid-template-columns: 1fr; }
  .hero-inner{ grid-template-columns: 1fr; }
  .hero-visual{ order: -1; max-width: 380px; margin-inline: auto; }
}

@media (max-width: 760px){
  .topbar-inner{ justify-content: center; text-align: center; }
  .topbar-item.location span{ max-width: 220px; }
  .main-nav{
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 1rem 6%;
    gap: .2rem;
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-soft);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: transform .3s var(--ease), opacity .3s var(--ease);
  }
  .main-nav.open{ transform: translateY(0); opacity: 1; pointer-events: auto; }
  .main-nav a{ padding: .7rem 0; border-bottom: 1px solid var(--line); }
  .header-cta{ display: none; }
  .nav-toggle{ display: flex; }
  .stats-grid{ grid-template-columns: repeat(2, 1fr); gap: 1.6rem 0; }
  .stat{ border-right: 0; border-bottom: 1px solid rgba(255,255,255,.12); padding-bottom: 1rem; }
  .service-grid{ grid-template-columns: 1fr 1fr; }
  .brand-grid{ grid-template-columns: repeat(3, 1fr); }
  .why-grid{ grid-template-columns: 1fr; }
  .hero-actions .btn{ flex: 1; justify-content: center; }
}

@media (max-width: 480px){
  .service-grid{ grid-template-columns: 1fr; }
  .brand-grid{ grid-template-columns: repeat(2, 1fr); }
}