/* ============================================================
   Krishna Nurses' Bureau — Master Stylesheet (redesign)
   Palette : Navy #0f2748 | Orange #f5a623 | Blue #1e63d6
             Sky #22b6e0 | Light #f7f9fc
   Fonts   : Playfair Display (headings) | Poppins (body)
   Structure: 1 Base 2 Buttons 3 Header 4 Hero 5 Sections
              6 Stats 7 About 8 Services 9 Why 10 Testimonials
              11 CTA 12 Contact 13 Footer 14 Floating 15 Responsive
   ============================================================ */

/* ================= 1. Base / tokens ================= */
:root{
  --navy:#0f2748;
  --navy-deep:#0a1c33;
  --orange:#f5a623;
  --orange-dark:#e0951a;
  --blue:#1e63d6;
  --sky:#22b6e0;
  --light:#f7f9fc;
  --muted:#546480;
  --line:#e6ecf5;
  --radius:16px;
  --shadow-sm:0 4px 18px rgba(15,39,72,.07);
  --shadow-md:0 14px 40px rgba(15,39,72,.10);
  --shadow-lg:0 24px 60px rgba(15,39,72,.16);
  --header-h:76px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Poppins',sans-serif;color:var(--navy);background:#fff;line-height:1.65;overflow-x:hidden;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,h5{font-family:'Playfair Display',serif;color:var(--navy);font-weight:700;line-height:1.18}
a{text-decoration:none;color:inherit}
img{max-width:100%;height:auto;display:block}
ul{list-style:none}
input,select,textarea,button{font-family:inherit;font-size:16px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ================= 2. Buttons ================= */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 30px;border-radius:50px;font-weight:600;font-size:15px;transition:all .35s var(--ease);cursor:pointer;border:2px solid transparent;text-align:center}
.btn i{font-size:.95em}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 8px 22px rgba(245,166,35,.35)}
.btn-primary:hover{background:var(--orange-dark);transform:translateY(-3px);box-shadow:0 14px 30px rgba(245,166,35,.45)}
.btn-outline{background:transparent;color:#fff;border-color:#fff}
.btn-outline:hover{background:#fff;color:var(--navy)}
.btn-outline-dark{background:transparent;color:var(--orange);border-color:var(--orange)}
.btn-outline-dark:hover{background:var(--orange);color:#fff}
.btn-white{background:#fff;color:var(--navy)}
.btn-white:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.btn-block{width:100%}

/* ================= 3. Header / Nav ================= */
.header{position:fixed;inset:0 0 auto 0;background:#fff;z-index:1000;padding:8px 0;box-shadow:0 2px 20px rgba(15,39,72,.06);transition:padding .3s var(--ease)}
.header.scrolled{padding:2px 0;box-shadow:0 6px 24px rgba(15,39,72,.10)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px}
.navbar-brand{display:flex;align-items:center;flex-shrink:0}
.navbar-brand img{height:52px;width:auto;object-fit:contain}
.nav-menu{display:flex;gap:34px;align-items:center}
.nav-menu a{font-weight:500;font-size:15px;padding:8px 0;position:relative;transition:color .3s}
.nav-menu a.active,.nav-menu a:hover{color:var(--orange)}
.nav-menu a.active::after{content:'';position:absolute;bottom:-4px;left:0;right:0;height:2px;background:var(--orange)}
.nav-cta{display:inline-flex;align-items:center;gap:8px;background:var(--orange);color:#fff;padding:12px 24px;border-radius:50px;font-weight:600;white-space:nowrap;transition:all .3s var(--ease);box-shadow:0 6px 18px rgba(245,166,35,.35)}
.nav-cta:hover{background:var(--orange-dark);transform:translateY(-2px)}
.menu-toggle{display:none;background:none;border:none;font-size:24px;color:var(--navy);cursor:pointer;padding:8px;line-height:1}

/* ================= 4. Hero ================= */
.hero{position:relative;height:88vh;min-height:560px;margin-top:var(--header-h);overflow:hidden}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity 1.2s ease;background-size:cover;background-position:center}
.hero-slide.active{opacity:1}
.hero-slide::before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,28,51,.72) 0%,rgba(10,28,51,.45) 55%,rgba(10,28,51,.7) 100%)}
.hero-content{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;color:#fff;padding:0 20px;max-width:1000px;margin:0 auto}
.hero-kicker{font-family:'Playfair Display',serif;letter-spacing:.3em;font-size:clamp(11px,2.6vw,14px);text-transform:uppercase;margin-bottom:16px;opacity:.92}
.hero h1{font-size:clamp(1.85rem,5.5vw,4.2rem);color:#fff;margin-bottom:18px;font-style:italic;font-weight:600}
.hero p{font-size:clamp(.95rem,1.4vw,1.12rem);max-width:700px;margin:0 auto 30px;opacity:.95}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.hero-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:50px;height:50px;border-radius:50%;background:rgba(245,166,35,.92);color:#fff;border:none;font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s}
.hero-arrow:hover{background:#fff;color:var(--orange)}
.hero-arrow.prev{left:16px}.hero-arrow.next{right:16px}
.hero-dots{position:absolute;bottom:22px;left:0;right:0;display:flex;justify-content:center;gap:10px;z-index:3}
.hero-dot{width:11px;height:11px;border-radius:50%;background:rgba(255,255,255,.5);border:none;cursor:pointer;transition:all .3s}
.hero-dot.active{background:var(--orange);transform:scale(1.3)}

/* Inner page header */
.page-header{margin-top:var(--header-h);padding:clamp(60px,9vw,110px) 0;background:linear-gradient(120deg,var(--navy) 0%,var(--blue) 100%);color:#fff;text-align:center}
.page-header h1{color:#fff;font-size:clamp(1.9rem,5vw,3.2rem)}
.page-header .crumbs{margin-top:10px;font-size:14px;opacity:.9}
.page-header .crumbs a:hover{color:var(--orange)}

/* ================= 5. Sections ================= */
section{padding:clamp(56px,7vw,100px) 0;position:relative}
.section-tag{display:flex;align-items:center;justify-content:center;gap:12px;color:var(--orange);font-weight:600;letter-spacing:.28em;font-size:clamp(11px,2.4vw,13px);text-transform:uppercase;margin-bottom:16px;text-align:center}
.section-tag::before,.section-tag::after{content:'';width:34px;height:2px;background:var(--orange);flex-shrink:0}
.section-title{text-align:center;font-size:clamp(1.7rem,4.2vw,3rem);margin-bottom:18px}
.section-desc{text-align:center;max-width:760px;margin:0 auto clamp(36px,5vw,58px);color:var(--muted);font-size:clamp(.95rem,1.2vw,1rem)}
.reveal{opacity:0;transform:translateY(34px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ================= 6. Stats band (ref 1) ================= */
.stats{padding:clamp(50px,6vw,84px) 0;background:linear-gradient(115deg,#1462b8 0%,#1e7ad0 45%,#2a8fe0 100%);color:#fff;overflow:hidden}
.stats::after{content:'';position:absolute;inset:0;background:url('../images/krishna_background_img2.jpg') center/cover no-repeat;opacity:.12;mix-blend-mode:screen;pointer-events:none}
.stats-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(24px,4vw,40px);text-align:center}
.stat-icon{font-size:clamp(30px,4vw,42px);margin-bottom:14px;opacity:.95}
.stat-num{font-family:'Playfair Display',serif;font-weight:700;color:#fff;font-size:clamp(2.1rem,5.4vw,3.6rem);line-height:1}
.stat-label{margin-top:8px;font-size:clamp(.85rem,2.4vw,1.05rem);opacity:.95}

/* ================= 7. About / Mission-Vision-Values ================= */
.about{background:var(--light)}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,56px);align-items:center}
.about-img-wrap{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-md)}
.about-img{width:100%;height:100%;max-height:520px;object-fit:cover;transition:transform .6s var(--ease)}
.about-img-wrap:hover .about-img{transform:scale(1.04)}
.about-tag{display:inline-flex;align-items:center;gap:12px;color:var(--orange);font-weight:600;letter-spacing:.28em;font-size:13px;text-transform:uppercase;margin-bottom:14px}
.about-tag::after{content:'';width:60px;height:2px;background:var(--orange)}
.about h2{font-size:clamp(1.5rem,3.4vw,2.5rem);margin-bottom:16px}
.about p{color:var(--muted);margin-bottom:14px}
.about-list{margin:20px 0 26px;display:grid;gap:12px}
.about-list li{position:relative;padding-left:34px;color:var(--navy);font-weight:500}
.about-list li::before{content:'\f058';font-family:'Font Awesome 6 Free';font-weight:900;position:absolute;left:0;top:0;color:var(--orange)}
.about-actions{display:flex;gap:14px;flex-wrap:wrap}

.mvv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(24px,4vw,48px);text-align:center}
.mvv-card{padding:clamp(20px,3vw,32px) 16px;border-radius:var(--radius);transition:transform .4s var(--ease),box-shadow .4s var(--ease);background:transparent}
.mvv-card:hover{transform:translateY(-8px);background:#fff;box-shadow:var(--shadow-md)}
.mvv-icon{font-size:clamp(34px,4.4vw,46px);color:var(--orange);margin-bottom:18px}
.mvv-card h3{font-size:clamp(1.25rem,2.6vw,1.7rem);margin-bottom:12px}
.mvv-card p{color:var(--muted);font-size:15px}

/* ================= 8. Services / What We Do (ref 3 & 4) ================= */
.services{background:#fff}
.services-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:clamp(20px,2.6vw,30px)}
.service-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);border-bottom:4px solid var(--sky);display:flex;flex-direction:column;transition:transform .4s var(--ease),box-shadow .4s var(--ease)}
.service-card:hover{transform:translateY(-10px);box-shadow:var(--shadow-lg)}
.service-media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--light)}
.service-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.service-card:hover .service-media img{transform:scale(1.07)}
.service-body{padding:clamp(20px,2.6vw,28px);display:flex;flex-direction:column;flex:1;gap:12px}
.service-head{display:flex;align-items:center;gap:12px}
.service-head i{color:var(--orange);font-size:22px;flex-shrink:0}
.service-card h3{font-size:clamp(1.2rem,2.4vw,1.55rem);min-width:0}
.service-body .for{color:var(--muted);font-size:15px}
.service-body p{color:var(--muted);font-size:15px}
.service-body .btn{margin-top:auto;align-self:flex-start}
.learn-more{display:inline-flex;align-items:center;gap:8px;color:var(--orange);font-weight:600;margin-top:auto;transition:gap .3s}
.learn-more:hover{gap:14px}

/* ================= 9. Why choose us ================= */
.why{background:var(--light)}
.why-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:clamp(20px,2.6vw,28px)}
.why-card{background:#fff;padding:clamp(24px,3vw,34px);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:transform .4s var(--ease),box-shadow .4s var(--ease)}
.why-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-md)}
.why-icon{width:62px;height:62px;border-radius:50%;background:rgba(245,166,35,.14);color:var(--orange);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:18px}
.why-card h3{font-size:1.2rem;margin-bottom:10px}
.why-card p{color:var(--muted);font-size:15px}

/* ================= 10. Testimonials ================= */
.testimonials{background:#fff}
.testi-wrap{position:relative;max-width:820px;margin:0 auto;background:var(--light);border-radius:var(--radius);padding:clamp(30px,5vw,56px) clamp(20px,5vw,64px);box-shadow:var(--shadow-sm);text-align:center}
.testi-slide{display:none}
.testi-slide.active{display:block;animation:fade .6s var(--ease)}
@keyframes fade{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.testi-avatar{width:84px;height:84px;border-radius:50%;object-fit:cover;margin:0 auto 18px;border:4px solid #fff;box-shadow:var(--shadow-sm)}
.testi-text{color:var(--muted);font-size:clamp(.95rem,1.4vw,1.08rem);font-style:italic;margin-bottom:16px}
.testi-name{font-family:'Playfair Display',serif;font-weight:700;font-size:1.1rem}
.testi-role{color:var(--orange);font-size:14px}
.testi-arrow{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;border-radius:50%;border:none;background:var(--orange);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .3s}
.testi-arrow:hover{background:var(--navy)}
.testi-arrow.prev{left:-14px}.testi-arrow.next{right:-14px}

/* ================= 11. CTA bands ================= */
.emergency{background:linear-gradient(120deg,var(--navy) 0%,var(--blue) 100%);color:#fff;text-align:center}
.emergency h2{color:#fff;font-size:clamp(1.6rem,4vw,2.8rem);margin-bottom:16px}
.emergency p{max-width:680px;margin:0 auto 30px;opacity:.92}
.emergency-cta{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.emergency .section-tag{color:#fff}
.emergency .section-tag::before,.emergency .section-tag::after{background:rgba(255,255,255,.7)}

.cta-bar{background:linear-gradient(120deg,#1462b8,#2a8fe0);color:#fff}
.cta-bar-inner{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:clamp(20px,3vw,40px);align-items:center}
.cta-bar h2{color:#fff;font-size:clamp(1.5rem,3.4vw,2.6rem)}
.cta-bar p{opacity:.92;margin-top:8px}
.cta-bar-btns{display:flex;gap:14px;flex-wrap:wrap}

.emergency-dark{background:linear-gradient(120deg,var(--navy-deep),#16304f);color:#fff}
.emergency-dark-inner{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:clamp(20px,3vw,40px);align-items:center}
.emergency-dark .ed-head{display:flex;align-items:center;gap:18px;min-width:0}
.emergency-dark .ed-head i{font-size:clamp(30px,4vw,44px);color:var(--orange);flex-shrink:0}
.emergency-dark h2{color:#fff;font-size:clamp(1.5rem,4vw,2.8rem)}
.emergency-dark p{opacity:.85;margin-top:10px}

/* ================= 12. Contact ================= */
.contact-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:clamp(18px,2.4vw,28px)}
.contact-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:clamp(24px,3vw,36px) 18px;text-align:center;transition:transform .4s var(--ease),box-shadow .4s var(--ease)}
.contact-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-md)}
.contact-card i{font-size:34px;margin-bottom:16px;display:block}
.contact-card .i-phone{color:var(--orange)}
.contact-card .i-wa{color:#25d366}
.contact-card .i-mail{color:var(--orange)}
.contact-card .i-pin{color:#e5484d}
.contact-card h3{font-size:1.3rem;margin-bottom:8px}
.contact-card span,.contact-card a{color:var(--orange);font-weight:500;word-break:break-word}
.contact-card .wa-link{color:#1a9d4c}
.contact-card .muted{color:var(--muted);font-weight:400}

.contact-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.3fr);gap:clamp(24px,3vw,40px);align-items:start}
.contact-info-card{background:var(--navy);color:#fff;border-radius:var(--radius);padding:clamp(24px,3vw,36px)}
.contact-info-card h3{color:#fff;margin-bottom:22px;font-size:1.5rem}
.contact-info-card li{display:flex;gap:14px;margin-bottom:20px}
.contact-info-card li i{color:var(--orange);font-size:18px;margin-top:5px;flex-shrink:0}
.contact-info-card strong{display:block;font-weight:600;margin-bottom:2px}
.contact-info-card span{display:block;opacity:.82;font-size:15px;word-break:break-word}
.contact-info-card a{color:inherit}

.contact-form{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-md);padding:clamp(22px,3vw,36px)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-group{margin-bottom:16px;min-width:0}
.form-group label{display:block;font-size:14px;font-weight:500;margin-bottom:6px}
.form-control{width:100%;padding:14px 16px;border:1.5px solid var(--line);border-radius:12px;background:var(--light);transition:border-color .3s,box-shadow .3s;color:var(--navy)}
.form-control:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 4px rgba(245,166,35,.14);background:#fff}
.form-control.invalid{border-color:#e5484d;background:#fff5f5}
textarea.form-control{min-height:140px;resize:vertical}
.field-error{display:block;color:#e5484d;font-size:13px;margin-top:6px;min-height:0}
.form-note{margin-top:14px;font-size:14px;padding:14px 16px;border-radius:12px;display:none}
.form-note.show{display:block}
.form-note.success{background:#e8f8ef;color:#12693c;border:1px solid #b6e7ca}
.form-note.error{background:#fdecec;color:#a4262c;border:1px solid #f6c6c6}
.btn[disabled]{opacity:.7;pointer-events:none}
.map-wrap{line-height:0}
.map-wrap iframe{width:100%;height:clamp(260px,40vw,420px);border:0;display:block}

/* ================= 13. Footer ================= */
.footer{background:var(--navy-deep);color:#cdd8e6;padding:clamp(46px,6vw,74px) 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:clamp(24px,3vw,40px)}
.footer h4{color:#fff;font-size:1.15rem;margin-bottom:18px}
.footer p{font-size:15px;opacity:.85}
.footer-brand img{height:54px;background:#fff;padding:6px 10px;border-radius:10px;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:15px;opacity:.85;transition:color .3s,padding-left .3s}
.footer-links a:hover{color:var(--orange);padding-left:5px}
.footer-contact{display:grid;gap:14px}
.footer-contact li{display:flex;gap:12px;font-size:15px;opacity:.85}
.footer-contact li i{color:var(--orange);margin-top:5px;flex-shrink:0}
.footer-social{display:flex;gap:12px;margin-top:18px}
.footer-social a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;transition:all .3s}
.footer-social a:hover{background:var(--orange);color:#fff;transform:translateY(-3px)}
.footer-bottom{margin-top:clamp(30px,4vw,50px);padding:20px;border-top:1px solid rgba(255,255,255,.1);text-align:center;font-size:14px;opacity:.75}

/* ================= 14. Floating buttons ================= */
.whatsapp-btn{position:fixed;left:18px;bottom:18px;width:54px;height:54px;border-radius:50%;background:#25d366;color:#fff;display:flex;align-items:center;justify-content:center;font-size:26px;z-index:999;box-shadow:0 10px 26px rgba(37,211,102,.4);transition:transform .3s}
.whatsapp-btn:hover{transform:scale(1.08)}
.back-to-top{position:fixed;right:18px;bottom:18px;width:48px;height:48px;border-radius:50%;background:var(--orange);color:#fff;border:none;font-size:18px;cursor:pointer;z-index:999;opacity:0;visibility:hidden;transform:translateY(14px);transition:all .35s var(--ease);display:flex;align-items:center;justify-content:center}
.back-to-top.show{opacity:1;visibility:visible;transform:none}

/* ================= 15. Responsive ================= */
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .about-grid{grid-template-columns:1fr}
  .about-img{max-height:340px}
  .mvv-grid{grid-template-columns:1fr}
  .cta-bar-inner,.emergency-dark-inner{grid-template-columns:1fr;text-align:center}
  .cta-bar-btns,.emergency-dark .ed-btns{justify-content:center;display:flex;gap:14px;flex-wrap:wrap}
  .emergency-dark .ed-head{justify-content:center;flex-direction:column;text-align:center;gap:12px}
}
@media (max-width:860px){
  .nav-menu{position:fixed;top:var(--header-h);left:0;right:0;background:#fff;flex-direction:column;gap:0;max-height:0;overflow:hidden;box-shadow:0 18px 30px rgba(15,39,72,.12);transition:max-height .4s var(--ease)}
  .nav-menu.open{max-height:min(70vh,420px);overflow-y:auto}
  .nav-menu li{width:100%;border-bottom:1px solid var(--line)}
  .nav-menu a{display:block;padding:15px 22px;width:100%}
  .nav-menu a.active::after{display:none}
  .menu-toggle{display:block;order:3}
  .nav-cta{padding:10px 16px;font-size:14px}
  .nav-cta span{display:none}
  .navbar-brand img{height:44px}
  .hero{height:78vh;min-height:470px}
  .hero-arrow{width:40px;height:40px;font-size:15px}
}
@media (max-width:640px){
  :root{--header-h:70px}
  .form-row{grid-template-columns:1fr;gap:0}
  .footer-grid{grid-template-columns:1fr;text-align:left}
  .testi-wrap{padding:30px 20px 84px}
  .testi-arrow{top:auto;bottom:24px;transform:none;width:44px;height:44px}
  .testi-arrow.prev{left:50%;margin-left:-52px;right:auto}
  .testi-arrow.next{right:auto;left:50%;margin-left:8px}
  .hero-arrow{display:none}
  .btn{padding:13px 24px;font-size:14px}
  .hero-cta .btn,.emergency-cta .btn{flex:1 1 220px}
  .whatsapp-btn{width:48px;height:48px;font-size:22px}
  section{padding:52px 0}
}
@media (max-width:420px){
  .stats-grid{grid-template-columns:1fr}
  .services-grid{grid-template-columns:1fr}
}