/* =====================================================
   DR. HARISH KUMAR – PULMONOLOGIST WEBSITE
   Professional Medical CSS Design System
   ===================================================== */

/* ---------- CSS Variables ---------- */
:root {
  --blue-dark:    #0a2d5e;
  --blue:         #1565c0;
  --blue-mid:     #1976d2;
  --blue-light:   #e3f0fb;
  --green:        #00897b;
  --green-dark:   #00695c;
  --green-light:  #e0f2f1;
  --accent:       #0288d1;
  --whatsapp:     #25d366;
  --whatsapp-dk:  #128c50;
  --white:        #ffffff;
  --off-white:    #f7f9fc;
  --text-dark:    #0d1b2a;
  --text-mid:     #2d3f55;
  --text-muted:   #5a7090;
  --border:       #dce8f5;
  --shadow-sm:    0 2px 8px rgba(21,101,192,0.08);
  --shadow-md:    0 8px 32px rgba(21,101,192,0.12);
  --shadow-lg:    0 20px 60px rgba(21,101,192,0.16);
  --radius-sm:    8px;
  --radius-md:    16px;
  --radius-lg:    24px;
  --radius-xl:    32px;
  --transition:   all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Inter', sans-serif;
  color: var(--text-dark);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* ---------- Utilities ---------- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-label {
  display: inline-block;
  background: var(--blue-light);
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 16px;
}
.section-label.light { background: rgba(255,255,255,0.18); color: var(--white); }
.section-title { font-family: 'Poppins', sans-serif; font-size: clamp(1.8rem,3.5vw,2.6rem); font-weight: 700; color: var(--text-dark); line-height: 1.25; margin-bottom: 16px; }
.section-title span, .section-title .gradient-text { color: var(--blue); }
.section-title.light, .section-title.light span { color: var(--white); }
.section-desc { color: var(--text-muted); font-size: 1.05rem; max-width: 600px; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-header .section-desc { margin: 0 auto; }
.gradient-text { background: linear-gradient(135deg, var(--blue), var(--green)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  text-decoration: none;
}
.btn-primary { background: linear-gradient(135deg, var(--blue), var(--blue-mid)); color: var(--white); box-shadow: 0 4px 18px rgba(21,101,192,0.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(21,101,192,0.4); }
.btn-outline { background: transparent; color: var(--blue); border: 2px solid var(--blue); }
.btn-outline:hover { background: var(--blue); color: var(--white); transform: translateY(-2px); }
.btn-whatsapp { background: linear-gradient(135deg, var(--whatsapp), #1ebe5c); color: var(--white); box-shadow: 0 4px 18px rgba(37,211,102,0.3); }
.btn-whatsapp:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(37,211,102,0.45); }
.btn-emergency { background: linear-gradient(135deg, #e53935, #c62828); color: var(--white); margin-top: 16px; box-shadow: 0 4px 14px rgba(229,57,53,0.35); }
.btn-emergency:hover { transform: translateY(-2px); }
.btn-sm { padding: 9px 20px; font-size: 0.87rem; }
.btn.large { padding: 16px 36px; font-size: 1.05rem; }
.full-width { width: 100%; justify-content: center; }

/* =====================================================
   NAVBAR
   ===================================================== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.navbar.scrolled { box-shadow: var(--shadow-md); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 10px; font-family: 'Poppins', sans-serif; font-weight: 700; font-size: 1.1rem; color: var(--blue-dark); }
.logo i { color: var(--blue); font-size: 1.5rem; }
.logo.white { color: var(--white); }
.logo.white i { color: rgba(255,255,255,0.85); }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links a { padding: 8px 14px; border-radius: 8px; font-size: 0.9rem; font-weight: 500; color: var(--text-mid); transition: var(--transition); }
.nav-links a:hover { color: var(--blue); background: var(--blue-light); }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.hamburger span { width: 24px; height: 2px; background: var(--blue-dark); border-radius: 2px; transition: var(--transition); display: block; }

/* =====================================================
   HERO
   ===================================================== */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(150deg, #f0f8ff 0%, #e8f4fd 50%, #f0faf8 100%);
  position: relative;
  overflow: hidden;
  min-height: 100vh;
  display: flex;
  align-items: center;
}
.hero-bg-shapes { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.12;
}
.shape-1 { width: 600px; height: 600px; background: var(--blue); top: -200px; right: -100px; animation: floatSlow 8s ease-in-out infinite; }
.shape-2 { width: 400px; height: 400px; background: var(--green); bottom: -150px; left: -100px; animation: floatSlow 10s ease-in-out infinite reverse; }
.shape-3 { width: 250px; height: 250px; background: var(--blue-mid); top: 40%; left: 40%; animation: floatSlow 6s ease-in-out infinite 2s; }
@keyframes floatSlow { 0%,100%{transform:translateY(0) scale(1)} 50%{transform:translateY(-20px) scale(1.04)} }

.hero-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; position: relative; z-index: 1; }
.badge-pill { display: inline-flex; align-items: center; gap: 8px; background: linear-gradient(135deg, var(--blue-light), var(--green-light)); color: var(--blue-dark); padding: 8px 20px; border-radius: 50px; font-size: 0.82rem; font-weight: 600; margin-bottom: 24px; border: 1px solid var(--border); }
.hero h1 { font-family: 'Poppins', sans-serif; font-size: clamp(2rem, 4vw, 3.2rem); font-weight: 800; line-height: 1.2; margin-bottom: 20px; color: var(--text-dark); }
.hero-sub { color: var(--text-muted); font-size: 1.1rem; margin-bottom: 32px; max-width: 520px; }
.hero-stats { display: flex; gap: 32px; margin-bottom: 40px; }
.stat { display: flex; flex-direction: column; }
.stat-num { font-family: 'Poppins', sans-serif; font-size: 1.8rem; font-weight: 800; color: var(--blue); line-height: 1; }
.stat-label { font-size: 0.78rem; color: var(--text-muted); margin-top: 4px; font-weight: 500; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }

.doctor-card { position: relative; display: inline-block; max-width: 480px; margin: 0 auto; }
.doctor-card img {
  width: 100%;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border: 4px solid rgba(255,255,255,0.8);
  background: linear-gradient(135deg, var(--blue-light), var(--green-light));
  object-fit: cover;
  min-height: 480px;
}
.doctor-badge {
  position: absolute;
  bottom: 24px; left: 50%; transform: translateX(-50%);
  background: var(--white);
  border-radius: 14px;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-md);
  white-space: nowrap;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--blue-dark);
  border: 1px solid var(--border);
}
.doctor-badge i { color: var(--blue); font-size: 1.2rem; }

/* =====================================================
   TRUST STRIP
   ===================================================== */
.trust-strip {
  background: linear-gradient(135deg, var(--blue-dark), var(--blue));
  padding: 28px 0;
}
.trust-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; }
.trust-item { display: flex; align-items: center; gap: 12px; color: var(--white); }
.trust-item i { font-size: 1.5rem; opacity: 0.88; }
.trust-item span { font-weight: 500; font-size: 0.95rem; opacity: 0.92; }

/* =====================================================
   ABOUT
   ===================================================== */
.about { background: var(--white); }
.about-inner { display: grid; grid-template-columns: 1fr 1.2fr; gap: 80px; align-items: center; }
.about-img-wrap { position: relative; display: inline-block; width: 100%; }
.about-img-wrap img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); width: 100%; object-fit: cover; min-height: 420px; }
.about-exp-badge {
  position: absolute; top: -20px; right: -20px;
  width: 100px; height: 100px;
  background: linear-gradient(135deg, var(--blue), var(--blue-mid));
  border-radius: 50%;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  color: var(--white); font-weight: 700; font-size: 0.75rem; text-align: center;
  box-shadow: 0 8px 24px rgba(21,101,192,0.4);
  line-height: 1.3;
}
.about-exp-badge span { font-size: 1.6rem; font-family: 'Poppins', sans-serif; }
.about-credentials { display: flex; flex-direction: column; gap: 12px; margin-top: 24px; }
.credential { display: flex; align-items: center; gap: 14px; padding: 14px 18px; background: var(--off-white); border-radius: var(--radius-sm); border: 1px solid var(--border); }
.credential i { font-size: 1.3rem; color: var(--blue); width: 24px; text-align: center; flex-shrink: 0; }
.credential div strong { display: block; font-size: 0.9rem; color: var(--text-dark); }
.credential div small { color: var(--text-muted); font-size: 0.8rem; }
.about-content .section-title { margin-top: 8px; }
.about-content p { color: var(--text-muted); margin-bottom: 16px; font-size: 1rem; }
.about-content p strong { color: var(--text-mid); }
.about-highlights { display: flex; flex-direction: column; gap: 10px; margin: 24px 0; }
.highlight { display: flex; align-items: center; gap: 10px; font-size: 0.95rem; color: var(--text-mid); font-weight: 500; }
.highlight i { color: var(--green); font-size: 1rem; flex-shrink: 0; }

/* =====================================================
   SERVICES
   ===================================================== */
.services { background: var(--off-white); }
.services-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 24px; }
.service-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--blue), var(--green)); transform: scaleX(0); transition: var(--transition); transform-origin: left; }
.service-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.service-card:hover::before { transform: scaleX(1); }
.service-icon { width: 60px; height: 60px; background: var(--blue-light); border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center; margin-bottom: 20px; transition: var(--transition); }
.service-icon i { font-size: 1.6rem; color: var(--blue); }
.service-card:hover .service-icon { background: var(--blue); }
.service-card:hover .service-icon i { color: var(--white); }
.service-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--text-dark); margin-bottom: 10px; }
.service-card p { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 20px; line-height: 1.6; }
.service-link { font-size: 0.88rem; font-weight: 600; color: var(--blue); display: inline-flex; align-items: center; gap: 6px; transition: var(--transition); }
.service-link:hover { gap: 10px; color: var(--green); }

/* =====================================================
   SYMPTOMS
   ===================================================== */
.symptoms { background: var(--white); }
.symptoms-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 20px; margin-bottom: 48px; }
.symptom-item {
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 22px;
  text-align: center;
  transition: var(--transition);
}
.symptom-item:hover { background: var(--blue-light); border-color: var(--blue); transform: translateY(-4px); box-shadow: var(--shadow-md); }
.symptom-item i { font-size: 2rem; color: var(--blue); margin-bottom: 14px; display: block; }
.symptom-item:hover i { color: var(--blue-dark); }
.symptom-item h4 { font-size: 0.95rem; font-weight: 700; color: var(--text-dark); margin-bottom: 8px; }
.symptom-item p { font-size: 0.85rem; color: var(--text-muted); }
.symptoms-cta { text-align: center; padding: 40px; background: linear-gradient(135deg, var(--blue-light), var(--green-light)); border-radius: var(--radius-lg); border: 1px solid var(--border); }
.symptoms-cta p { font-size: 1.1rem; color: var(--text-mid); margin-bottom: 20px; }

/* =====================================================
   WHY CHOOSE
   ===================================================== */
.why-choose { background: var(--off-white); }
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.why-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  border: 1px solid var(--border);
  transition: var(--transition);
  text-align: center;
}
.why-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--blue); }
.why-icon { width: 72px; height: 72px; background: linear-gradient(135deg, var(--blue), var(--blue-mid)); border-radius: 50%; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; box-shadow: 0 6px 20px rgba(21,101,192,0.25); }
.why-icon i { font-size: 1.8rem; color: var(--white); }
.why-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--text-dark); margin-bottom: 10px; }
.why-card p { font-size: 0.9rem; color: var(--text-muted); }

/* =====================================================
   TESTIMONIALS
   ===================================================== */
.testimonials { background: var(--white); }
.testimonials-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 24px; }
.testimonial-card {
  background: var(--off-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  transition: var(--transition);
}
.testimonial-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--blue); }
.stars { color: #F9A825; font-size: 1.1rem; margin-bottom: 16px; letter-spacing: 2px; }
.testimonial-card p { font-size: 0.95rem; color: var(--text-muted); font-style: italic; margin-bottom: 20px; line-height: 1.7; }
.reviewer { display: flex; align-items: center; gap: 14px; }
.reviewer-avatar {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--blue), var(--blue-mid));
  color: var(--white);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.9rem;
  flex-shrink: 0;
}
.reviewer strong { display: block; font-size: 0.95rem; color: var(--text-dark); }
.reviewer small { font-size: 0.8rem; color: var(--text-muted); }

/* =====================================================
   CLINIC
   ===================================================== */
.clinic { background: var(--off-white); }
.clinic-inner { display: grid; grid-template-columns: 1fr 1.4fr; gap: 48px; align-items: start; }
.clinic-info-card { background: var(--white); border-radius: var(--radius-md); padding: 32px; border: 1px solid var(--border); box-shadow: var(--shadow-sm); }
.clinic-info-item { display: flex; gap: 16px; padding: 20px 0; border-bottom: 1px solid var(--border); }
.clinic-info-item:last-child { border-bottom: none; }
.clinic-info-item i { font-size: 1.4rem; color: var(--blue); width: 28px; text-align: center; flex-shrink: 0; margin-top: 3px; }
.clinic-info-item strong { display: block; font-size: 0.9rem; color: var(--text-dark); font-weight: 600; margin-bottom: 4px; }
.clinic-info-item p { font-size: 0.88rem; color: var(--text-muted); line-height: 1.6; }
.clinic-info-item p a { color: var(--blue); font-weight: 500; }
.clinic-info-item p a:hover { text-decoration: underline; }
.clinic-actions { display: flex; gap: 12px; margin-top: 20px; flex-wrap: wrap; }
.clinic-map iframe { border-radius: var(--radius-md); box-shadow: var(--shadow-md); width: 100%; }

/* =====================================================
   APPOINTMENT
   ===================================================== */
.appointment { background: linear-gradient(135deg, var(--blue-dark) 0%, #1565c0 60%, #00897b 100%); }
.appointment-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.appointment-info .section-desc { color: rgba(255,255,255,0.75); margin-bottom: 32px; }
.appt-features { display: flex; flex-direction: column; gap: 12px; margin-bottom: 36px; }
.appt-feat { display: flex; align-items: center; gap: 12px; color: rgba(255,255,255,0.9); font-size: 0.95rem; }
.appt-feat i { color: var(--whatsapp); font-size: 1.1rem; flex-shrink: 0; }
.appointment-form-wrap {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: 0 24px 80px rgba(0,0,0,0.2);
}
.appt-form h3 { font-family: 'Poppins', sans-serif; font-size: 1.4rem; font-weight: 700; color: var(--text-dark); margin-bottom: 28px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.88rem; font-weight: 600; color: var(--text-mid); margin-bottom: 6px; }
.form-group input, .form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text-dark);
  background: var(--off-white);
  transition: var(--transition);
  outline: none;
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--blue); background: var(--white); box-shadow: 0 0 0 3px rgba(21,101,192,0.1); }
.form-group textarea { resize: vertical; }
.form-note { text-align: center; font-size: 0.84rem; color: var(--text-muted); margin-top: 14px; }
.form-note a { color: var(--blue); font-weight: 500; }
.success-message { display: none; text-align: center; padding: 24px; background: var(--green-light); border-radius: var(--radius-md); color: var(--green-dark); font-weight: 600; border: 1px solid #a5d6a7; }

/* =====================================================
   FAQ
   ===================================================== */
.faq { background: var(--white); }
.faq-list { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { border: 1.5px solid var(--border); border-radius: var(--radius-md); overflow: hidden; transition: var(--transition); }
.faq-item.active { border-color: var(--blue); box-shadow: var(--shadow-sm); }
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  background: var(--off-white);
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-dark);
  text-align: left;
  gap: 16px;
  transition: var(--transition);
}
.faq-question:hover { background: var(--blue-light); color: var(--blue); }
.faq-item.active .faq-question { background: var(--blue); color: var(--white); }
.faq-question i { flex-shrink: 0; transition: var(--transition); }
.faq-item.active .faq-question i { transform: rotate(180deg); }
.faq-answer { display: none; padding: 20px 24px 24px; background: var(--white); }
.faq-answer p { font-size: 0.95rem; color: var(--text-muted); line-height: 1.7; }

/* =====================================================
   BLOG
   ===================================================== */
.blog { background: var(--off-white); }
.blog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 28px; }
.blog-card { background: var(--white); border-radius: var(--radius-md); border: 1px solid var(--border); overflow: hidden; transition: var(--transition); }
.blog-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.blog-img { height: 180px; background-size: cover; background-position: center; }
.blog-img-1 { background: linear-gradient(135deg, #e3f0fb, #bbdefb); }
.blog-img-2 { background: linear-gradient(135deg, #e0f2f1, #b2dfdb); }
.blog-img-3 { background: linear-gradient(135deg, #f3e5f5, #e1bee7); }
.blog-img-4 { background: linear-gradient(135deg, #fff8e1, #ffe082); }
.blog-content { padding: 24px; }
.blog-tag { display: inline-block; background: var(--blue-light); color: var(--blue); padding: 4px 12px; border-radius: 50px; font-size: 0.75rem; font-weight: 600; margin-bottom: 12px; }
.blog-card h3 { font-size: 1rem; font-weight: 700; color: var(--text-dark); line-height: 1.4; margin-bottom: 10px; }
.blog-card p { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 16px; }
.blog-link { font-size: 0.88rem; font-weight: 600; color: var(--blue); display: inline-flex; align-items: center; gap: 6px; transition: var(--transition); }
.blog-link:hover { gap: 10px; color: var(--green); }

/* =====================================================
   FOOTER
   ===================================================== */
.footer { background: var(--blue-dark); color: rgba(255,255,255,0.8); }
.footer-top { padding: 72px 0 48px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; }
.footer-brand p { font-size: 0.9rem; margin: 20px 0 24px; line-height: 1.7; opacity: 0.75; }
.social-links { display: flex; gap: 12px; }
.social-links a {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
  color: var(--white);
  font-size: 1rem;
  transition: var(--transition);
  border: 1px solid rgba(255,255,255,0.15);
}
.social-links a:hover { background: var(--blue-mid); transform: translateY(-2px); }
.footer-col h4 { font-size: 1rem; font-weight: 700; color: var(--white); margin-bottom: 20px; }
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col ul li a { font-size: 0.88rem; color: rgba(255,255,255,0.65); transition: var(--transition); }
.footer-col ul li a:hover { color: var(--white); padding-left: 4px; }
.footer-contact { display: flex; flex-direction: column; gap: 12px; }
.footer-contact p { display: flex; gap: 10px; font-size: 0.88rem; color: rgba(255,255,255,0.7); align-items: flex-start; }
.footer-contact p i { color: var(--blue-mid); flex-shrink: 0; margin-top: 2px; }
.footer-contact p a { color: rgba(255,255,255,0.85); }
.footer-contact p a:hover { color: var(--white); text-decoration: underline; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 24px 0;
  text-align: center;
}
.footer-bottom p { font-size: 0.82rem; opacity: 0.55; margin-bottom: 4px; }

/* =====================================================
   FLOATING ELEMENTS
   ===================================================== */
.whatsapp-float {
  position: fixed;
  right: 24px; bottom: 80px;
  width: 58px; height: 58px;
  background: var(--whatsapp);
  color: var(--white);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.7rem;
  box-shadow: 0 6px 24px rgba(37,211,102,0.45);
  z-index: 999;
  transition: var(--transition);
  animation: pulse 2.5s infinite;
}
.whatsapp-float:hover { transform: scale(1.1); background: var(--whatsapp-dk); }
@keyframes pulse {
  0%,100%{box-shadow:0 6px 24px rgba(37,211,102,0.45)}
  50%{box-shadow:0 6px 36px rgba(37,211,102,0.7)}
}
.back-to-top {
  position: fixed;
  right: 24px; bottom: 20px;
  width: 42px; height: 42px;
  background: var(--blue);
  color: var(--white);
  border: none;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  z-index: 998;
  opacity: 0;
  transform: translateY(10px);
  transition: var(--transition);
}
.back-to-top.visible { opacity: 1; transform: translateY(0); }
.back-to-top:hover { background: var(--blue-dark); transform: translateY(-2px); }

/* =====================================================
   DATA-AOS ANIMATIONS (lightweight)
   ===================================================== */
[data-aos] { opacity: 0; transform: translateY(30px); transition: opacity 0.7s ease, transform 0.7s ease; }
[data-aos].aos-animate { opacity: 1; transform: translateY(0); }
[data-aos="fade-right"] { transform: translateX(-30px); }
[data-aos="fade-right"].aos-animate { transform: translateX(0); }
[data-aos="fade-left"] { transform: translateX(30px); }
[data-aos="fade-left"].aos-animate { transform: translateX(0); }

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 1024px) {
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .nav-links { display: none; flex-direction: column; position: absolute; top: 72px; left: 0; right: 0; background: var(--white); border-bottom: 1px solid var(--border); padding: 16px; box-shadow: var(--shadow-md); }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 16px; width: 100%; border-radius: 8px; }
  .hamburger { display: flex; }
  .hero { padding: 110px 0 60px; min-height: auto; }
  .hero-inner { grid-template-columns: 1fr; gap: 40px; text-align: center; }
  .hero-content { order: 2; }
  .hero-image { order: 1; }
  .hero-sub { margin: 0 auto 24px; }
  .hero-stats { justify-content: center; }
  .hero-cta { justify-content: center; }
  .about-inner { grid-template-columns: 1fr; gap: 40px; }
  .clinic-inner { grid-template-columns: 1fr; }
  .appointment-inner { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .trust-inner { justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; }
  .doctor-card img { min-height: 320px; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.9rem; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn { justify-content: center; }
  .appointment-form-wrap { padding: 28px 20px; }
  .symptoms-grid { grid-template-columns: repeat(2, 1fr); }
}