:root {
  --navy: #033176;
  --navy-dark: #021f4d;
  --blue: #2f45d1;
  --sky: #3a9ad9;
  --text: #313131;
  --muted: #5b6475;
  --bg-alt: #f3f6fb;
  --border: #e2e7f0;
  --radius: 12px;
  --shadow: 0 6px 24px rgba(3, 49, 118, .08);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--text);
  line-height: 1.6;
  background: #fff;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--navy); }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; color: var(--navy); }

.container { width: min(1180px, 100% - 32px); margin-inline: auto; }
.container.narrow { width: min(860px, 100% - 32px); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4em;
  padding: .75em 1.4em; border-radius: 6px; border: 0;
  font: 700 1rem/1 inherit; font-family: inherit; text-decoration: none; cursor: pointer;
  transition: transform .15s, background .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--blue); color: #fff; }
.btn-primary:hover { background: var(--navy); }
.btn-accent { background: #fff; color: var(--navy); }
.btn-accent:hover { background: #e8eeff; }
.btn-block { width: 100%; padding: 1em; font-size: 1.05rem; }

/* Header */
.site-header { background: #fff; position: sticky; top: 0; z-index: 50; box-shadow: 0 1px 0 var(--border); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 10px 0; }
.logo img { width: 150px; }

/* Hero */
.hero {
  background: linear-gradient(rgba(3, 30, 110, .55), rgba(3, 30, 110, .55)), url("../images/hero-bg.jpg") center/cover no-repeat, var(--navy);
  color: #fff;
  padding: 56px 0;
}
.hero-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: 48px; align-items: start; }
.hero h1 { color: #fff; font-size: clamp(2rem, 4.5vw, 3.1rem); font-weight: 800; }
.hero h1 em { font-style: italic; }
.hero-sub { font-weight: 700; margin: 0 0 32px; }

.stats { list-style: none; padding: 0; margin: 0 0 32px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; text-align: center; }
.stats svg { width: 40px; height: 40px; fill: #fff; margin: 0 auto 12px; display: block; }
.stats strong { display: block; font-size: 1.15rem; }
.stats span { font-size: .85rem; opacity: .9; }

.hero-symptoms { margin: 0 0 24px; }
.doctor-card { display: flex; gap: 18px; align-items: flex-start; }
.doctor-card img { width: 120px; height: 120px; object-fit: cover; object-position: top; border-radius: 8px; flex-shrink: 0; background: #fff; }
.doctor-card h2 { color: #fff; font-size: 1.1rem; margin-bottom: .3em; }
.doctor-card p { margin: 0; font-size: .95rem; }

/* Form */
.appointment-form {
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .25);
  backdrop-filter: blur(6px);
  border-radius: var(--radius);
  padding: 28px;
  display: grid; gap: 14px;
}
.appointment-form h2 { color: #fff; font-size: 1.4rem; margin: 0; }
.appointment-form label { display: grid; gap: 6px; font-size: .95rem; font-weight: 600; }
.appointment-form input,
.appointment-form select,
.appointment-form textarea {
  width: 100%; padding: 11px 12px; border-radius: 6px; border: 1px solid transparent;
  font: inherit; font-weight: 500; color: var(--text); background: #fff;
}
.appointment-form :focus { outline: 3px solid #9fc0ff; outline-offset: 1px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-note { margin: 0; font-size: .8rem; opacity: .85; text-align: center; }

/* Sections */
.section { padding: 72px 0; }
.section-alt { background: var(--bg-alt); }
.eyebrow { text-transform: uppercase; letter-spacing: .08em; font-weight: 700; font-size: .85rem; text-align: center; margin: 0 0 .6em; color: var(--text); }
.section-title { text-align: center; font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 800; }
.section-title.left, .split .eyebrow { text-align: left; }
.section-intro { text-align: center; max-width: 780px; margin: 0 auto 40px; color: var(--muted); }

/* Features */
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 48px 40px; }
.feature { text-align: center; }
.feature img { width: 96px; height: 96px; margin: 0 auto 12px; }
.feature h3 { color: var(--sky); font-size: 1.1rem; }
.feature p { margin: 0; color: var(--muted); }

/* Symptoms */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.checklist { list-style: none; padding: 0; margin: 16px 0 0; }
.checklist li { padding: 6px 0 6px 30px; position: relative; }
.checklist li::before { content: "✓"; position: absolute; left: 4px; color: var(--sky); font-weight: 800; }
.video { position: relative; aspect-ratio: 16 / 9; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); background: #000; }
.video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* Reviews */
.reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: start; }
.review { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow); }
.review header { display: grid; grid-template-columns: 40px 1fr; column-gap: 12px; align-items: center; margin-bottom: 10px; }
.avatar { grid-row: span 2; width: 40px; height: 40px; border-radius: 50%; background: var(--navy); color: #fff; display: grid; place-items: center; font-weight: 700; }
.stars { color: #f6bb06; letter-spacing: 2px; font-size: .95rem; }
.review p { margin: 0 0 .6em; font-size: .95rem; }
.review.collapsed .review-body { max-height: 7.5em; overflow: hidden; }
.read-more { background: none; border: 0; padding: 0; color: var(--muted); font: inherit; font-size: .9rem; cursor: pointer; text-decoration: underline; }

/* Steps */
.steps { list-style: none; padding: 0; margin: 40px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; text-align: center; }
.steps img { width: 80px; height: 80px; margin: 0 auto 12px; }
.steps h3 { color: var(--sky); font-size: 1.05rem; }
.steps p { margin: 0; color: var(--muted); font-size: .95rem; }

/* FAQ */
.faq { display: grid; gap: 10px; margin-top: 24px; }
.faq details { background: var(--bg-alt); border: 1px solid var(--border); border-radius: 8px; }
.faq summary {
  cursor: pointer; list-style: none; padding: 16px 20px; font-weight: 700; text-transform: uppercase; letter-spacing: .02em;
  display: flex; gap: 12px; align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before { content: "+"; font-size: 1.3rem; line-height: 1; width: 1ch; }
.faq details[open] summary::before { content: "−"; }
.faq details p { margin: 0; padding: 0 20px 18px 48px; }

/* Clinics */
.clinics { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.clinic { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; }
.clinic-tag { text-transform: uppercase; letter-spacing: .08em; font-size: .8rem; font-weight: 700; color: var(--muted); margin: 0 0 4px; }
.clinic h3 { font-size: 1.4rem; }
.clinic ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; font-size: .95rem; }

/* Footer */
.site-footer { background: var(--navy-dark); color: #cdd6ea; text-align: center; padding: 24px 0; font-size: .9rem; }
.site-footer p { margin: 0; }
.site-footer a { color: #fff; }

/* WhatsApp button */
.whatsapp-float {
  position: fixed; right: 20px; bottom: 20px; z-index: 60;
  width: 56px; height: 56px; border-radius: 50%; background: #25d366;
  display: grid; place-items: center; box-shadow: 0 6px 18px rgba(0, 0, 0, .25);
}
.whatsapp-float svg { width: 30px; height: 30px; fill: #fff; }

/* Responsive */
@media (max-width: 960px) {
  .hero-grid, .split { grid-template-columns: 1fr; }
  .reviews { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .hero { padding: 36px 0; }
  .stats { grid-template-columns: repeat(2, 1fr); row-gap: 24px; }
  .feature-grid, .reviews, .clinics, .form-row { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .section { padding: 52px 0; }
  .logo img { width: 120px; }
  .header-inner .btn { font-size: .9rem; padding: .7em 1em; }
  .doctor-card img { width: 90px; height: 90px; }
}

/* Form status + spam honeypot */
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-status { margin: 0; font-size: .95rem; text-align: center; min-height: 1.2em; }
.form-status.success { color: #b6f5c9; font-weight: 600; }
.form-status.error { color: #ffc9c9; font-weight: 600; }
.appointment-form button[disabled] { opacity: .7; cursor: wait; }