/* ============================================================
   DR. MATHEUS FERREIRA – NEUROLOGISTA / PARKINSON
   Style Sheet – Modern Medical Landing Page
   ============================================================ */

/* ---- CSS Variables ---- */
:root {
  --primary:       #1a4b8c;   /* Azul naval médico */
  --primary-dark:  #122f5c;
  --primary-light: #2563c4;
  --accent:        #0891b2;   /* Teal / ciano */
  --accent-light:  #e0f2fe;
  --navy:          #0f2545;
  --green:         #25d366;   /* WhatsApp */
  --white:         #ffffff;
  --off-white:     #f8fafb;
  --gray-100:      #f1f5f9;
  --gray-200:      #e2e8f0;
  --gray-400:      #94a3b8;
  --gray-600:      #475569;
  --gray-800:      #1e293b;
  --text:          #1e293b;
  --text-light:    #64748b;

  --font-heading:  'Playfair Display', Georgia, serif;
  --font-body:     'Inter', system-ui, sans-serif;

  --radius-sm:     6px;
  --radius:        12px;
  --radius-lg:     20px;
  --radius-xl:     32px;

  --shadow-sm:     0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow:        0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:     0 12px 40px rgba(0,0,0,.14);
  --shadow-blue:   0 8px 32px rgba(26,75,140,.22);

  --transition:    .28s cubic-bezier(.4,0,.2,1);
  --container:     1200px;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }

/* ---- Container ---- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 24px;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .95rem;
  letter-spacing: .01em;
  transition: var(--transition);
  white-space: nowrap;
  border: 2px solid transparent;
}
.btn--primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: var(--shadow-blue);
}
.btn--primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 12px 36px rgba(26,75,140,.32);
}
.btn--ghost {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.7);
}
.btn--ghost:hover {
  background: rgba(255,255,255,.12);
  border-color: var(--white);
}
.btn--white {
  background: var(--white);
  color: var(--primary);
  font-weight: 700;
}
.btn--white:hover {
  background: var(--gray-100);
  transform: translateY(-2px);
}
.btn--lg { padding: 16px 36px; font-size: 1.05rem; border-radius: 14px; }
.btn--full { width: 100%; justify-content: center; }

/* ============================================================
   HEADER / NAV
   ============================================================ */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
  transition: box-shadow var(--transition);
}
.header.scrolled { box-shadow: var(--shadow); }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.nav__brand { display: flex; flex-direction: column; }
.nav__title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1.2;
}
.nav__subtitle {
  font-size: .72rem;
  color: var(--text-light);
  letter-spacing: .03em;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav__links a {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: .88rem;
  font-weight: 500;
  color: var(--gray-600);
  transition: var(--transition);
}
.nav__links a:hover { color: var(--primary); background: var(--gray-100); }
.nav__cta {
  background: var(--primary) !important;
  color: var(--white) !important;
  padding: 10px 20px !important;
  border-radius: var(--radius) !important;
  font-weight: 600 !important;
  box-shadow: var(--shadow-blue);
}
.nav__cta:hover {
  background: var(--primary-dark) !important;
  transform: translateY(-1px);
}
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ============================================================
   SECTION COMMON
   ============================================================ */
.section { padding: 100px 0; }
.section__header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 64px;
}
.section__tag {
  display: inline-block;
  padding: 6px 16px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 40px;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section__title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  color: var(--navy);
  line-height: 1.25;
  margin-bottom: 16px;
}
.section__subtitle {
  font-size: 1.05rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 72px;
}
.hero__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--navy) 0%, var(--primary) 55%, #1e6b9c 100%);
  z-index: 0;
}
.hero__bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 80% 40%, rgba(8,145,178,.25) 0%, transparent 60%),
    radial-gradient(ellipse 40% 60% at 10% 90%, rgba(255,255,255,.06) 0%, transparent 50%);
}
/* floating orbs */
.hero__bg::after {
  content: '';
  position: absolute;
  top: 15%; right: 5%;
  width: 340px; height: 340px;
  background: radial-gradient(circle, rgba(8,145,178,.18) 0%, transparent 70%);
  border-radius: 50%;
  animation: floatOrb 8s ease-in-out infinite;
}

@keyframes floatOrb {
  0%,100% { transform: translateY(0) scale(1); }
  50%      { transform: translateY(-30px) scale(1.05); }
}

.hero__content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 60px;
  padding-block: 80px;
}
.hero__text { color: var(--white); }
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 40px;
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: 22px;
  backdrop-filter: blur(6px);
}
.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 22px;
  color: var(--white);
}
.hero__title em {
  font-style: normal;
  color: #7dd3fc;
}
.hero__desc {
  font-size: 1.08rem;
  color: rgba(255,255,255,.85);
  max-width: 520px;
  margin-bottom: 36px;
  line-height: 1.75;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 48px;
}
.hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .85rem;
  color: rgba(255,255,255,.8);
}
.trust-item i { color: #7dd3fc; font-size: 1rem; }

/* Hero image */
.hero__image { display: flex; justify-content: flex-end; }
.hero__photo-wrap {
  position: relative;
  width: 100%;
  max-width: 440px;
}
.hero__photo {
  width: 100%;
  border-radius: 24px 24px 80px 24px;
  box-shadow: 0 24px 64px rgba(0,0,0,.35);
  object-fit: cover;
  aspect-ratio: 3/4;
  object-position: top center;
}
.hero__photo-card {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: var(--white);
  border-radius: var(--radius);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow-lg);
}
.hero__photo-card i {
  font-size: 1.6rem;
  color: var(--primary);
}
.hero__photo-card strong {
  display: block;
  font-size: .85rem;
  font-weight: 700;
  color: var(--navy);
}
.hero__photo-card span {
  font-size: .75rem;
  color: var(--text-light);
}

/* wave divider */
.hero__wave {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  z-index: 2;
  line-height: 0;
}
.hero__wave svg { width: 100%; height: 60px; }

/* ============================================================
   ALERT BANNER
   ============================================================ */
.alert-banner {
  background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
  padding: 18px 0;
}
.alert-banner p {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--white);
  font-size: .95rem;
  text-align: center;
}
.alert-banner i { font-size: 1.1rem; color: #fde68a; }
.alert-banner a {
  color: #fde68a;
  font-weight: 700;
  text-decoration: underline;
  transition: opacity var(--transition);
}
.alert-banner a:hover { opacity: .8; }

/* ============================================================
   SYMPTOMS
   ============================================================ */
.symptoms { background: var(--off-white); }
.symptoms__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.symptom-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
  opacity: 0;
  transform: translateY(24px);
}
.symptom-card.animate-in {
  opacity: 1;
  transform: translateY(0);
}
.symptom-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
  border-color: var(--primary);
}
.symptom-card__icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 18px;
}
.symptom-card__icon--blue  { background: #dbeafe; color: var(--primary); }
.symptom-card__icon--navy  { background: #e0e7ff; color: #4338ca; }
.symptom-card__icon--teal  { background: var(--accent-light); color: var(--accent); }
.symptom-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
}
.symptom-card p {
  font-size: .9rem;
  color: var(--text-light);
  line-height: 1.65;
}
.symptoms__cta {
  text-align: center;
  margin-top: 56px;
  padding: 40px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  border-radius: var(--radius-xl);
  color: var(--white);
}
.symptoms__cta p {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 20px;
}
.symptoms__cta .btn--primary {
  background: var(--white);
  color: var(--primary);
  font-size: 1.05rem;
}
.symptoms__cta .btn--primary:hover {
  background: var(--gray-100);
  transform: translateY(-2px);
}

/* ============================================================
   AUDIENCE
   ============================================================ */
.audience {
  background: var(--white);
}
.audience__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.audience-card {
  background: var(--off-white);
  border-radius: var(--radius-lg);
  padding: 36px 24px;
  text-align: center;
  border: 2px solid transparent;
  transition: var(--transition);
}
.audience-card:hover {
  border-color: var(--primary);
  background: var(--white);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.audience-card__icon {
  width: 64px; height: 64px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--white);
  margin: 0 auto 20px;
  box-shadow: var(--shadow-blue);
}
.audience-card h3 {
  font-size: .98rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
  line-height: 1.4;
}
.audience-card p {
  font-size: .85rem;
  color: var(--text-light);
  line-height: 1.6;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about { background: var(--off-white); }
.about__wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.about__img-wrap {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.about__img-wrap img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  object-position: top center;
  transition: transform .5s ease;
}
.about__img-wrap:hover img { transform: scale(1.03); }
.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 20px;
}
.stat-box {
  background: var(--white);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
}
.stat-box strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.6rem;
  color: var(--primary);
  line-height: 1;
  margin-bottom: 4px;
}
.stat-box span {
  font-size: .75rem;
  color: var(--text-light);
  line-height: 1.3;
}
.about__title { text-align: left; margin-bottom: 6px; }
.about__role {
  font-size: .9rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 24px;
  letter-spacing: .01em;
}
.about__text {
  font-size: 1rem;
  color: var(--text-light);
  line-height: 1.75;
  margin-bottom: 16px;
}
.about__text strong { color: var(--navy); }
.about__highlights {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-block: 28px;
}
.about__highlights li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .93rem;
  font-weight: 500;
  color: var(--text);
}
.about__highlights i { color: var(--accent); font-size: .9rem; }

/* ============================================================
   TREATMENT
   ============================================================ */
.treatment { background: var(--white); }
.treatment__steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.treatment-step {
  display: flex;
  gap: 20px;
  padding: 32px;
  background: var(--off-white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}
.treatment-step:hover {
  background: var(--white);
  box-shadow: var(--shadow);
  border-color: var(--primary);
  transform: translateY(-3px);
}
.treatment-step__num {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--primary);
  line-height: 1;
  min-width: 50px;
  opacity: .35;
  transition: opacity var(--transition);
}
.treatment-step:hover .treatment-step__num { opacity: 1; }
.treatment-step__content h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 10px;
}
.treatment-step__content p {
  font-size: .9rem;
  color: var(--text-light);
  line-height: 1.65;
}

/* ============================================================
   EARLY DIAGNOSIS BANNER
   ============================================================ */
.early-diag {
  background: linear-gradient(135deg, var(--navy) 0%, var(--primary) 60%, var(--accent) 100%);
  padding: 80px 0;
}
.early-diag__wrap {
  display: flex;
  align-items: center;
  gap: 48px;
}
.early-diag__icon {
  flex-shrink: 0;
  width: 100px; height: 100px;
  background: rgba(255,255,255,.12);
  border-radius: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--white);
  border: 2px solid rgba(255,255,255,.2);
}
.early-diag__text h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  color: var(--white);
  margin-bottom: 16px;
  line-height: 1.3;
}
.early-diag__text p {
  font-size: 1rem;
  color: rgba(255,255,255,.85);
  line-height: 1.7;
  margin-bottom: 28px;
  max-width: 680px;
}
.early-diag__text strong { color: #7dd3fc; }

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonials { background: var(--off-white); }
.testimonials__grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr 1fr;
  gap: 28px;
  align-items: start;
}
.testimonial-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}
.testimonial-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}
.testimonial-card--featured {
  background: linear-gradient(160deg, var(--primary) 0%, var(--accent) 100%);
  color: var(--white);
  border-color: transparent;
  box-shadow: var(--shadow-blue);
}
.testimonial-card__stars {
  margin-bottom: 16px;
  font-size: .9rem;
}
.testimonial-card__stars i { color: #f59e0b; }
.testimonial-card--featured .testimonial-card__stars i { color: #fde68a; }
.testimonial-card blockquote {
  font-size: .95rem;
  font-style: italic;
  color: var(--text-light);
  line-height: 1.75;
  margin-bottom: 24px;
}
.testimonial-card--featured blockquote { color: rgba(255,255,255,.9); }
.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: 14px;
}
.testimonial-card__avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
}
.testimonial-card--featured .testimonial-card__avatar {
  background: rgba(255,255,255,.25);
}
.testimonial-card__author strong {
  display: block;
  font-size: .9rem;
  font-weight: 700;
  color: var(--navy);
}
.testimonial-card--featured .testimonial-card__author strong {
  color: var(--white);
}
.testimonial-card__author span {
  font-size: .78rem;
  color: var(--text-light);
}
.testimonial-card--featured .testimonial-card__author span {
  color: rgba(255,255,255,.75);
}

/* ============================================================
   FAQ
   ============================================================ */
.faq { background: var(--white); }
.faq__list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: var(--off-white);
  border-radius: var(--radius);
  border: 1px solid var(--gray-200);
  overflow: hidden;
  transition: border-color var(--transition);
}
.faq-item.open { border-color: var(--primary); }
.faq-item__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 22px 28px;
  text-align: left;
  font-size: .97rem;
  font-weight: 600;
  color: var(--navy);
  transition: var(--transition);
}
.faq-item__question:hover { background: var(--gray-100); }
.faq-item.open .faq-item__question { background: var(--white); color: var(--primary); }
.faq-item__question i {
  font-size: .85rem;
  flex-shrink: 0;
  color: var(--text-light);
  transition: transform var(--transition);
}
.faq-item.open .faq-item__question i { transform: rotate(180deg); color: var(--primary); }
.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease, padding .3s ease;
}
.faq-item__answer p {
  padding: 0 28px 24px;
  font-size: .93rem;
  color: var(--text-light);
  line-height: 1.75;
}
.faq-item.open .faq-item__answer { max-height: 300px; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact { background: var(--off-white); }
.contact__wrap {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 72px;
  align-items: start;
}
.contact__title { text-align: left; }
.contact__desc {
  font-size: 1rem;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 36px;
}
.contact__list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 36px;
}
.contact__list li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.contact__list-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.contact__list-icon--green  { background: #dcfce7; color: #16a34a; }
.contact__list-icon--blue   { background: #dbeafe; color: var(--primary); }
.contact__list-icon--navy   { background: #e0e7ff; color: #4338ca; }
.contact__list-icon--teal   { background: var(--accent-light); color: var(--accent); }
.contact__list strong {
  display: block;
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-bottom: 3px;
}
.contact__list a, .contact__list span {
  font-size: .95rem;
  color: var(--navy);
  font-weight: 500;
}
.contact__list a:hover { color: var(--primary); text-decoration: underline; }
.contact__platforms p {
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: .04em;
  margin-bottom: 10px;
}
.contact__platforms-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.platform-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 40px;
  font-size: .84rem;
  font-weight: 600;
  background: var(--white);
  border: 2px solid var(--gray-200);
  color: var(--navy);
  transition: var(--transition);
}
.platform-badge:hover {
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: var(--shadow-sm);
}
.platform-badge--instagram:hover { border-color: #c13584; color: #c13584; }

/* Form */
.contact__form-wrap {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 48px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-200);
}
.contact__form h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--navy);
  margin-bottom: 6px;
}
.form-subtitle {
  font-size: .9rem;
  color: var(--text-light);
  margin-bottom: 32px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 20px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.form-group label {
  font-size: .84rem;
  font-weight: 600;
  color: var(--gray-600);
  letter-spacing: .02em;
}
.form-group input,
.form-group select,
.form-group textarea {
  padding: 13px 16px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: .93rem;
  color: var(--text);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,75,140,.12);
}
.form-group input.error,
.form-group select.error {
  border-color: #ef4444;
}
.form-group textarea { resize: vertical; min-height: 100px; }
.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2364748b'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 20px;
  padding-right: 40px;
}
.form-note {
  text-align: center;
  font-size: .78rem;
  color: var(--text-light);
  margin-top: 12px;
}
.form-note::before { content: '🔒 '; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--navy);
  color: rgba(255,255,255,.8);
}
.footer__wrap {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 48px;
  padding-block: 64px;
}
.footer__brand h3 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  color: var(--white);
  margin-bottom: 6px;
}
.footer__brand p { font-size: .9rem; line-height: 1.6; }
.footer__crm {
  font-size: .8rem !important;
  margin-top: 4px;
  color: rgba(255,255,255,.5) !important;
}
.footer__links h4,
.footer__contact h4 {
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: rgba(255,255,255,.5);
  margin-bottom: 20px;
}
.footer__links ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer__links a {
  font-size: .9rem;
  transition: color var(--transition);
}
.footer__links a:hover { color: var(--white); }
.footer__contact p {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .9rem;
  margin-bottom: 10px;
}
.footer__contact i { font-size: .9rem; color: var(--accent); }
.footer__contact a:hover { color: var(--white); text-decoration: underline; }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-block: 24px;
}
.footer__bottom .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  text-align: center;
}
.footer__bottom p { font-size: .82rem; }
.footer__disclaimer { color: rgba(255,255,255,.4); font-size: .76rem !important; }

/* ============================================================
   FLOATING ELEMENTS
   ============================================================ */
.whatsapp-fab {
  position: fixed;
  bottom: 28px; right: 28px;
  z-index: 999;
  background: var(--green);
  color: var(--white);
  border-radius: 60px;
  padding: 14px 22px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .92rem;
  font-weight: 700;
  box-shadow: 0 8px 28px rgba(37,211,102,.4);
  transition: var(--transition);
  animation: pulseFab 2.5s ease-in-out infinite;
}
.whatsapp-fab i { font-size: 1.5rem; }
.whatsapp-fab:hover {
  background: #1ebe5d;
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 12px 40px rgba(37,211,102,.5);
  animation: none;
}
@keyframes pulseFab {
  0%,100% { box-shadow: 0 8px 28px rgba(37,211,102,.4); }
  50%      { box-shadow: 0 8px 44px rgba(37,211,102,.7); }
}

.back-to-top {
  position: fixed;
  bottom: 28px; left: 28px;
  z-index: 999;
  width: 48px; height: 48px;
  background: var(--white);
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  box-shadow: var(--shadow);
  border: 1.5px solid var(--gray-200);
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}
.back-to-top.visible { opacity: 1; pointer-events: auto; }
.back-to-top:hover { background: var(--primary); color: var(--white); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1100px) {
  .audience__grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials__grid { grid-template-columns: 1fr; gap: 20px; }
  .testimonial-card--featured { order: -1; }
}

@media (max-width: 960px) {
  .hero__content { grid-template-columns: 1fr; gap: 40px; }
  .hero__image { justify-content: center; }
  .hero__photo-wrap { max-width: 320px; }
  .hero__text { text-align: center; }
  .hero__actions { justify-content: center; }
  .hero__trust { justify-content: center; }

  .about__wrap { grid-template-columns: 1fr; gap: 40px; }
  .about__image { max-width: 420px; margin: 0 auto; }

  .contact__wrap { grid-template-columns: 1fr; }
  .footer__wrap  { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 72px 0; }

  .nav__links { 
    display: none; 
    position: absolute; 
    top: 72px; left: 0; right: 0;
    background: var(--white);
    border-top: 1px solid var(--gray-200);
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow);
    padding: 20px 24px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }
  .nav__links.open { display: flex; }
  .nav__links a { padding: 12px 16px; font-size: .95rem; }
  .nav__toggle  { display: flex; }

  .symptoms__grid { grid-template-columns: repeat(2, 1fr); }
  .treatment__steps { grid-template-columns: 1fr; }
  .audience__grid   { grid-template-columns: 1fr 1fr; }

  .early-diag__wrap { flex-direction: column; text-align: center; gap: 28px; }

  .contact__form-wrap { padding: 32px 24px; }
  .form-row { grid-template-columns: 1fr; }

  .footer__wrap { grid-template-columns: 1fr; gap: 36px; }

  .whatsapp-fab span { display: none; }
  .whatsapp-fab { padding: 14px; border-radius: 50%; }
}

@media (max-width: 520px) {
  .symptoms__grid { grid-template-columns: 1fr; }
  .audience__grid { grid-template-columns: 1fr; }
  .about__stats   { grid-template-columns: 1fr; }
  .hero__actions  { flex-direction: column; align-items: center; }
  .btn--lg { width: 100%; justify-content: center; }
}