/* ============================================================
   Sri Vasavi Kidney & Rheumatology Clinic
   Palette extracted from clinic logo:
   Kidney (deep maroon-purple), Ureter (steel blue), Bone/joint (lavender + warm beige)
   ============================================================ */

:root{
  --maroon-950: #2f1729;
  --maroon-900: #48233e;
  --purple-700: #6c4363;
  --purple-600: #7e5b7a;
  --mauve-500:  #927490;
  --lavender-400: #a48ba4;
  --lavender-300: #c2adb9;
  --tint-100: #e9e0e7;
  --tint-050: #f7f2f5;
  --steel-blue: #546c98;
  --steel-blue-dark: #3d4f74;
  --warm-beige: #d6b9a0;
  --warm-beige-dark: #b6906f;
  --white: #ffffff;
  --ink: #362430;
  --ink-soft: #6b5a63;

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

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 28px;

  --shadow-sm: 0 2px 10px rgba(72,35,62,0.08);
  --shadow-md: 0 8px 30px rgba(72,35,62,0.12);
  --shadow-lg: 0 20px 60px rgba(72,35,62,0.18);

  --container: 1180px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--white);
  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-display);
  color:var(--maroon-900);
  margin:0 0 .5em;
  line-height:1.15;
  font-weight:600;
}
p{ margin:0 0 1em; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family:inherit; cursor:pointer; }
.container{ max-width:var(--container); margin:0 auto; padding:0 24px; }
.section{ padding:88px 0; }
.section--tint{ background:var(--tint-050); }
.section--dark{ background:var(--maroon-900); color:var(--tint-050); }
.section--dark h1,.section--dark h2,.section--dark h3{ color:var(--white); }

.eyebrow{
  display:inline-block;
  font-family:var(--font-body);
  font-size:.72rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  font-weight:700;
  color:var(--steel-blue-dark);
  background:rgba(84,108,152,0.1);
  padding:6px 14px;
  border-radius:100px;
  margin-bottom:16px;
}
.eyebrow--warm{ color:var(--warm-beige-dark); background:rgba(182,144,111,0.15); }
.eyebrow--light{ color:var(--tint-050); background:rgba(255,255,255,0.14); }

.section-head{ max-width:640px; margin-bottom:48px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }
.section-head p{ color:var(--ink-soft); font-size:1.05rem; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  padding:14px 28px; border-radius:100px; border:2px solid transparent;
  font-weight:700; font-size:.95rem; letter-spacing:.01em;
  transition:transform .2s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
  white-space:nowrap;
}
.btn:hover{ transform:translateY(-2px); }
.btn-primary{ background:var(--purple-700); color:var(--white); box-shadow:var(--shadow-sm); }
.btn-primary:hover{ background:var(--maroon-900); box-shadow:var(--shadow-md); }
.btn-outline{ border-color:var(--purple-700); color:var(--purple-700); background:transparent; }
.btn-outline:hover{ background:var(--purple-700); color:var(--white); }
.btn-outline.on-dark{ border-color:rgba(255,255,255,.6); color:var(--white); }
.btn-outline.on-dark:hover{ background:var(--white); color:var(--maroon-900); }
.btn-whatsapp{ background:#25D366; color:var(--white); }
.btn-whatsapp:hover{ background:#1ea952; box-shadow:var(--shadow-md); }
.btn-block{ width:100%; justify-content:center; }
.btn-sm{ padding:9px 18px; font-size:.82rem; }

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(255,255,255,0.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid rgba(72,35,62,0.08);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 24px; max-width:var(--container); margin:0 auto;
}
.brand{ display:flex; align-items:center; gap:12px; }
.brand img{ width:48px; height:48px; border-radius:50%; }
.brand-text{ display:flex; flex-direction:column; line-height:1.2; }
.brand-text .name{ font-family:var(--font-display); font-weight:700; font-size:1.05rem; color:var(--maroon-900); }
.brand-text .tag{ font-size:.68rem; letter-spacing:.08em; text-transform:uppercase; color:var(--steel-blue-dark); font-weight:700; }

.nav-links{ display:flex; align-items:center; gap:4px; }
.nav-links a{
  padding:10px 14px; border-radius:100px; font-weight:600; font-size:.9rem;
  color:var(--ink-soft); transition:background .2s, color .2s;
}
.nav-links a:hover, .nav-links a.active{ background:var(--tint-100); color:var(--maroon-900); }
.nav-cta{ display:flex; align-items:center; gap:10px; }
.nav-toggle{ display:none; background:none; border:none; padding:8px; }
.nav-toggle span{ display:block; width:24px; height:2px; background:var(--maroon-900); margin:5px 0; border-radius:2px; }

@media (max-width: 940px){
  .nav-links{
    position:fixed; top:76px; left:0; right:0; bottom:0;
    background:var(--white); flex-direction:column; align-items:stretch;
    padding:20px; gap:6px; transform:translateX(100%); transition:transform .3s ease;
    overflow-y:auto;
  }
  .nav-links.open{ transform:translateX(0); }
  .nav-links a{ padding:16px; font-size:1.05rem; }
  .nav-toggle{ display:block; }
  .nav-cta .btn span.btn-label-full{ display:none; }
}

/* ---------- Footer ---------- */
.site-footer{ background:var(--maroon-950); color:rgba(255,255,255,0.8); padding:64px 0 28px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; }
.footer-grid h4{ color:var(--white); font-family:var(--font-body); font-size:.82rem; text-transform:uppercase; letter-spacing:.1em; margin-bottom:16px;}
.footer-grid a{ display:block; padding:6px 0; color:rgba(255,255,255,0.72); font-size:.92rem; }
.footer-grid a:hover{ color:var(--warm-beige); }
.footer-brand{ display:flex; gap:12px; align-items:center; margin-bottom:14px; }
.footer-brand img{ width:44px; height:44px; border-radius:50%; }
.footer-brand .name{ font-family:var(--font-display); color:var(--white); font-size:1.1rem; }
.footer-bottom{ border-top:1px solid rgba(255,255,255,0.12); margin-top:48px; padding-top:24px; font-size:.82rem; color:rgba(255,255,255,0.55); display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;}
@media (max-width:800px){ .footer-grid{ grid-template-columns:1fr 1fr; } }

/* ---------- Floating WhatsApp button ---------- */
.float-whatsapp{
  position:fixed; bottom:22px; right:22px; z-index:200;
  width:60px; height:60px; border-radius:50%;
  background:#25D366; color:#fff; display:flex; align-items:center; justify-content:center;
  box-shadow:0 10px 30px rgba(37,211,102,0.45);
  animation:pulse-wa 2.6s infinite;
}
@keyframes pulse-wa{ 0%{ box-shadow:0 0 0 0 rgba(37,211,102,0.5);} 70%{ box-shadow:0 0 0 14px rgba(37,211,102,0);} 100%{ box-shadow:0 0 0 0 rgba(37,211,102,0);} }

/* ---------- Hero (shared look, page-specific content) ---------- */
.hero{
  position:relative; overflow:hidden;
  background:radial-gradient(120% 120% at 15% 10%, var(--tint-050) 0%, var(--tint-100) 45%, var(--lavender-300) 130%);
  padding:100px 0 90px;
}
.hero-inner{ display:grid; grid-template-columns:1.1fr .9fr; gap:56px; align-items:center; position:relative; z-index:2; }
.hero-eyebrow-row{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom:22px; }
.hero h1{ font-size:clamp(2.4rem, 5vw, 3.6rem); margin-bottom:20px; }
.hero h1 em{ font-style:normal; color:var(--purple-700); }
.hero p.lead{ font-size:1.15rem; color:var(--ink-soft); max-width:520px; margin-bottom:32px; }
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; }
.hero-stats{ display:flex; gap:32px; margin-top:44px; flex-wrap:wrap; }
.hero-stats .stat b{ display:block; font-family:var(--font-display); font-size:1.9rem; color:var(--maroon-900); }
.hero-stats .stat span{ font-size:.82rem; color:var(--ink-soft); text-transform:uppercase; letter-spacing:.05em; }

.hero-visual{ position:relative; display:flex; align-items:center; justify-content:center; }
.hero-visual .ring{
  width:min(420px, 90%); aspect-ratio:1; border-radius:50%;
  display:flex; align-items:center; justify-content:center; position:relative;
  background:conic-gradient(from 200deg, var(--lavender-300), var(--purple-700), var(--steel-blue), var(--warm-beige), var(--lavender-300));
  padding:14px;
  box-shadow:var(--shadow-lg);
}
.hero-visual .ring img{ width:100%; height:100%; object-fit:cover; border-radius:50%; background:var(--white); }
.hero-visual svg.particle-cross{ position:absolute; inset:0; width:100%; height:100%; pointer-events:none; }

@media (max-width:940px){
  .hero-inner{ grid-template-columns:1fr; }
  .hero-visual{ order:-1; }
}

/* ---------- Cards ---------- */
.grid{ display:grid; gap:28px; }
.grid-2{ grid-template-columns:repeat(2,1fr); }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-4{ grid-template-columns:repeat(4,1fr); }
@media (max-width:940px){ .grid-3,.grid-4{ grid-template-columns:repeat(2,1fr); } }
@media (max-width:640px){ .grid-2,.grid-3,.grid-4{ grid-template-columns:1fr; } }

.card{
  background:var(--white); border-radius:var(--radius-md);
  padding:32px; box-shadow:var(--shadow-sm); border:1px solid rgba(72,35,62,0.06);
  transition:transform .25s ease, box-shadow .25s ease;
}
.card:hover{ transform:translateY(-4px); box-shadow:var(--shadow-md); }

/* Condition cards */
.condition-card{ display:flex; gap:18px; align-items:flex-start; }
.condition-card .icon{
  flex:none; width:56px; height:56px; border-radius:14px;
  display:flex; align-items:center; justify-content:center;
  background:var(--tint-100);
}
.condition-card .icon svg{ width:30px; height:30px; }
.condition-card.nephro .icon{ background:rgba(84,108,152,0.14); }
.condition-card.rheum .icon{ background:rgba(182,144,111,0.18); }
.condition-card h3{ font-size:1.08rem; margin-bottom:6px; }
.condition-card p{ font-size:.92rem; color:var(--ink-soft); margin:0; }

.tab-group{ display:flex; gap:10px; margin-bottom:36px; flex-wrap:wrap; }
.tab-btn{
  padding:12px 22px; border-radius:100px; border:2px solid var(--tint-100);
  background:var(--white); font-weight:700; font-size:.9rem; color:var(--ink-soft);
  transition:all .2s ease;
}
.tab-btn.active, .tab-btn:hover{ border-color:var(--purple-700); color:var(--purple-700); }
.tab-btn.active{ background:var(--purple-700); color:var(--white); border-color:var(--purple-700); }

/* Doctor cards */
.doctor-card{ text-align:left; }
.doctor-card .photo{
  width:100%; aspect-ratio:1/1; border-radius:var(--radius-md); overflow:hidden; margin-bottom:20px;
  background:linear-gradient(145deg, var(--lavender-300), var(--steel-blue));
  display:flex; align-items:center; justify-content:center;
}
.doctor-card .photo img{ width:100%; height:100%; object-fit:cover; }
.doctor-card .initials{ font-family:var(--font-display); font-size:3.4rem; color:var(--white); }
.doctor-card h3{ margin-bottom:2px; }
.doctor-card .role{ color:var(--steel-blue-dark); font-weight:700; font-size:.85rem; text-transform:uppercase; letter-spacing:.05em; margin-bottom:14px; }
.doctor-card .creds{ display:flex; flex-wrap:wrap; gap:8px; margin-bottom:14px; }
.doctor-card .creds span{ background:var(--tint-100); padding:5px 12px; border-radius:100px; font-size:.78rem; font-weight:600; color:var(--purple-700); }

/* Testimonials */
.testimonial-card{ position:relative; }
.testimonial-card .quote-mark{ font-family:var(--font-display); font-size:3.4rem; color:var(--lavender-300); line-height:0; display:block; margin-bottom:12px; }
.testimonial-card .stars{ color:var(--warm-beige-dark); font-size:.95rem; margin-bottom:14px; letter-spacing:2px; }
.testimonial-card .who{ margin-top:18px; display:flex; align-items:center; gap:12px; }
.testimonial-card .avatar{
  width:44px; height:44px; border-radius:50%; background:var(--tint-100); color:var(--purple-700);
  display:flex; align-items:center; justify-content:center; font-weight:700; font-family:var(--font-display);
}
.testimonial-card .who b{ display:block; font-size:.92rem; }
.testimonial-card .who span{ font-size:.78rem; color:var(--ink-soft); }

/* Blog */
.blog-card .meta{ font-size:.78rem; color:var(--steel-blue-dark); text-transform:uppercase; letter-spacing:.06em; font-weight:700; margin-bottom:10px; }
.blog-card h3{ font-size:1.15rem; }
.blog-card .excerpt{ color:var(--ink-soft); font-size:.92rem; }
.blog-card .read-more{ font-weight:700; color:var(--purple-700); font-size:.88rem; display:inline-flex; align-items:center; gap:6px; margin-top:10px;}

/* Forms */
.form-card{ background:var(--white); border-radius:var(--radius-lg); box-shadow:var(--shadow-md); padding:44px; }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:20px; }
@media (max-width:640px){ .form-row{ grid-template-columns:1fr; } }
.field{ margin-bottom:20px; }
.field label{ display:block; font-size:.85rem; font-weight:700; color:var(--maroon-900); margin-bottom:8px; }
.field input, .field select, .field textarea{
  width:100%; padding:13px 16px; border-radius:var(--radius-sm); border:1.5px solid var(--tint-100);
  font-family:inherit; font-size:.95rem; background:var(--tint-050); color:var(--ink); transition:border-color .2s;
}
.field input:focus, .field select:focus, .field textarea:focus{ outline:none; border-color:var(--purple-700); background:var(--white); }
.field textarea{ min-height:120px; resize:vertical; }
.field-hint{ font-size:.78rem; color:var(--ink-soft); margin-top:6px; }
.form-msg{ padding:14px 18px; border-radius:var(--radius-sm); font-size:.9rem; font-weight:600; margin-bottom:20px; display:none; }
.form-msg.show{ display:block; }
.form-msg.success{ background:rgba(37,211,102,0.12); color:#1a7c40; }
.form-msg.error{ background:rgba(200,60,60,0.1); color:#a83232; }

/* Info strip */
.info-strip{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
@media (max-width:800px){ .info-strip{ grid-template-columns:1fr; } }
.info-item{ display:flex; gap:16px; align-items:flex-start; }
.info-item .icon{ flex:none; width:48px; height:48px; border-radius:12px; background:rgba(255,255,255,0.12); display:flex; align-items:center; justify-content:center; }
.info-item h4{ color:var(--white); font-family:var(--font-body); font-size:.95rem; margin-bottom:4px; }
.info-item p{ color:rgba(255,255,255,0.72); font-size:.88rem; margin:0; }

/* Page hero (inner pages, smaller than home) */
.page-hero{
  background:linear-gradient(160deg, var(--maroon-900), var(--purple-700) 60%, var(--steel-blue-dark));
  padding:76px 0 64px; color:var(--white); position:relative; overflow:hidden;
}
.page-hero .container{ position:relative; z-index:2; }
.page-hero h1{ color:var(--white); font-size:clamp(2rem, 4vw, 2.8rem); }
.page-hero p{ color:rgba(255,255,255,0.82); max-width:600px; font-size:1.05rem; }
.page-hero .blob{ position:absolute; border-radius:50%; filter:blur(60px); opacity:.35; }

.breadcrumb{ font-size:.82rem; color:rgba(255,255,255,0.7); margin-bottom:16px; }
.breadcrumb a{ color:rgba(255,255,255,0.9); font-weight:700; }

/* Utility */
.text-center{ text-align:center; }
.mt-0{ margin-top:0; } .mb-0{ margin-bottom:0; }
.flex{ display:flex; } .items-center{ align-items:center; } .gap-8{ gap:8px; } .gap-16{gap:16px;}
.badge{ display:inline-flex; align-items:center; gap:6px; background:var(--tint-100); color:var(--purple-700); padding:6px 14px; border-radius:100px; font-size:.78rem; font-weight:700; }
.divider{ height:1px; background:rgba(72,35,62,0.1); margin:40px 0; border:none; }
.skeleton{ background:linear-gradient(90deg, var(--tint-100) 25%, var(--tint-050) 37%, var(--tint-100) 63%); background-size:400% 100%; animation:sk 1.4s ease infinite; border-radius:8px; }
@keyframes sk{ 0%{background-position:100% 50%;} 100%{background-position:0 50%;} }
.empty-state{ text-align:center; padding:48px 24px; color:var(--ink-soft); }

.reveal{ opacity:0; transform:translateY(24px); transition:opacity .7s ease, transform .7s ease; }
.reveal.in{ opacity:1; transform:none; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  .reveal{ transition:none; opacity:1; transform:none; }
  .float-whatsapp{ animation:none; }
}