/* ============================================================
   Cardiocentro de Tomar – Main Stylesheet
   ============================================================ */

/* ---- CSS Variables ---- */
:root {
  --color-primary:  #7b1a1a;
  --color-accent:   #a02020;
  --color-light:    #fce8e8;
  --color-bg:       #fdf6f6;
  --color-text:     #1c1a1a;
  --color-muted:    #6b5555;
  --color-white:    #ffffff;
  --color-border:   #e8cccc;
  --color-closed:   #f5ecec;

  --font-main: 'Inter', sans-serif;

  --radius-sm:   6px;
  --radius-md:  12px;
  --radius-lg:  20px;

  --shadow-sm:  0 1px 4px rgba(123,26,26,.08);
  --shadow-md:  0 4px 16px rgba(123,26,26,.12);
  --shadow-lg:  0 8px 32px rgba(123,26,26,.16);

  --nav-height: 68px;
  --section-gap: 80px;
  --container-max: 1180px;
  --container-pad: clamp(16px, 5vw, 48px);

  --transition: 200ms ease;
}

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

/* ---- Layout ---- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.section {
  padding: var(--section-gap) 0;
}

/* ---- Typography ---- */
h1, h2, h3, h4 { line-height: 1.25; font-weight: 700; color: var(--color-primary); }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.4rem); }
h4 { font-size: 1rem; font-weight: 600; }
p { color: var(--color-muted); }

.section-header {
  text-align: center;
  margin-bottom: 48px;
}
.section-label {
  display: inline-block;
  font-size: .78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--color-accent);
  margin-bottom: 10px;
}
.section-header h2 { margin-top: 4px; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  font-size: .95rem;
  font-weight: 600;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.btn:hover { transform: translateY(-1px); }
.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 3px 12px rgba(160,32,32,.35);
}
.btn-primary:hover {
  background: var(--color-primary);
  box-shadow: 0 5px 18px rgba(123,26,26,.4);
}
.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255,255,255,.7);
}
.btn-outline:hover {
  background: rgba(255,255,255,.15);
  border-color: var(--color-white);
}

/* ============================================================
   NAVIGATION
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  height: var(--nav-height);
  display: flex;
  align-items: center;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-primary);
  white-space: nowrap;
  flex-shrink: 0;
}
.nav-logo-icon { width: 34px; height: 34px; color: var(--color-accent); flex-shrink: 0; }
.nav-logo-sub { font-weight: 400; color: var(--color-muted); }
.nav-logo-img { height: 46px; width: auto; object-fit: contain; display: block; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links a {
  display: block;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  font-weight: 500;
  color: var(--color-muted);
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover {
  color: var(--color-primary);
  background: var(--color-light);
}

/* Language Toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border);
  font-size: 1.1rem;
  transition: border-color var(--transition);
}
.lang-toggle:hover { border-color: var(--color-accent); }
.lang-pt, .lang-en { transition: opacity var(--transition); opacity: .35; }
.lang-pt.active, .lang-en.active { opacity: 1; }

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 6px;
  border-radius: var(--radius-sm);
}
.nav-hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  background: linear-gradient(135deg, #5a1212 0%, var(--color-accent) 100%);
  color: var(--color-white);
  padding: 100px 0 80px;
  overflow: hidden;
  min-height: 560px;
  display: flex;
  align-items: center;
}
.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero-ecg {
  position: absolute;
  bottom: 20%;
  left: 0;
  width: 100%;
  height: 80px;
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}
.hero-eyebrow {
  font-size: .82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: rgba(255,255,255,.75);
  margin-bottom: 16px;
}
.hero-title {
  color: var(--color-white);
  margin-bottom: 20px;
  font-size: clamp(2rem, 5vw, 3.2rem);
}
.hero-subtitle {
  color: rgba(255,255,255,.85);
  font-size: 1.1rem;
  margin-bottom: 36px;
  max-width: 560px;
}
.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ============================================================
   ABOUT
   ============================================================ */
.about { background: var(--color-white); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 60px;
  align-items: start;
}

.about-text .section-label { margin-bottom: 8px; }
.about-text h2 { margin-bottom: 20px; }
.about-text p { line-height: 1.8; }

.about-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.about-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 22px;
  text-align: center;
  transition: box-shadow var(--transition), transform var(--transition);
}
.about-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.about-card-icon {
  width: 52px;
  height: 52px;
  background: var(--color-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  color: var(--color-accent);
}
.about-card-icon svg { width: 24px; height: 24px; }
.about-card h3 { font-size: 1rem; margin-bottom: 8px; }
.about-card p { font-size: .88rem; line-height: 1.6; }

/* ============================================================
   SERVICES
   ============================================================ */
.services { background: var(--color-bg); }

.services-group { margin-bottom: 52px; }
.services-group:last-child { margin-bottom: 0; }

.services-group-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 24px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--color-light);
}

.cards-grid {
  display: grid;
  gap: 20px;
}
.cards-grid--3 { grid-template-columns: repeat(3, 1fr); }
.cards-grid--4 { grid-template-columns: repeat(4, 1fr); }

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 22px;
  transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--color-accent);
}
.service-card-icon {
  width: 46px;
  height: 46px;
  background: var(--color-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--color-accent);
}
.service-card-icon svg { width: 22px; height: 22px; }
.service-card h4 { margin-bottom: 8px; }
.service-card p { font-size: .86rem; line-height: 1.6; }

/* ============================================================
   TEAM
   ============================================================ */
.team { background: var(--color-white); }

.team-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}

.doctor-card {
  display: flex;
  gap: 28px;
  align-items: flex-start;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.doctor-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.doctor-photo-wrap {
  flex-shrink: 0;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--color-light);
  box-shadow: var(--shadow-sm);
}
.doctor-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.doctor-info { flex: 1; min-width: 0; }

.doctor-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}
.doctor-title {
  font-size: .82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--color-accent);
  margin-bottom: 12px;
}
.doctor-bio {
  font-size: .88rem;
  line-height: 1.7;
  color: var(--color-muted);
  margin-bottom: 16px;
}

.doctor-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.doctor-tags li {
  font-size: .75rem;
  font-weight: 600;
  color: var(--color-primary);
  background: var(--color-light);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 3px 10px;
}

/* ============================================================
   AGREEMENTS
   ============================================================ */
.agreements { background: var(--color-white); }
.agreements-body { max-width: 800px; margin: 0 auto; text-align: center; }
.agreements-body > p { font-size: 1rem; line-height: 1.8; margin-bottom: 32px; }
.agreements-footnote { margin-top: 28px; font-size: .88rem; color: var(--color-muted); }

/* Marquee / logo ticker */
@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.logos-marquee {
  overflow: hidden;
  position: relative;
  /* fade edges */
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
  mask-image: linear-gradient(to right, transparent 0%, black 8%, black 92%, transparent 100%);
}

.logos-track {
  display: flex;
  gap: 16px;
  width: max-content;
  animation: marquee-scroll 28s linear infinite;
}
.logos-track:hover { animation-play-state: paused; }

.convencao-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 20px 24px 16px;
  background: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  min-width: 110px;
  min-height: 90px;
  flex-shrink: 0;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.convencao-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
}

.convencao-logo {
  height: 36px;
  width: auto;
  max-width: 100px;
  object-fit: contain;
  display: block;
}

.convencao-name {
  font-size: .72rem;
  font-weight: 600;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  text-align: center;
}

@media (prefers-reduced-motion: reduce) {
  .logos-track { animation: none; }
}

/* ============================================================
   HOURS & LOCATION
   ============================================================ */
.hours-location { background: var(--color-bg); }

.hl-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.hl-hours h3 { margin-bottom: 24px; }

.hours-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 28px;
}
.hours-table td {
  padding: 10px 14px;
  font-size: .92rem;
  border-bottom: 1px solid var(--color-border);
}
.hours-table td:first-child { color: var(--color-text); font-weight: 500; }
.hours-table td:last-child { text-align: right; color: var(--color-accent); font-weight: 600; }
.hours-table tr.closed td { color: var(--color-muted); background: var(--color-closed); }
.hours-table tr.closed td:last-child { color: var(--color-muted); font-weight: 400; }

.address-block {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--color-muted);
}
.address-block svg { width: 20px; height: 20px; flex-shrink: 0; color: var(--color-accent); margin-top: 2px; }
.address-block address { font-size: .9rem; line-height: 1.6; }

.hl-map {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  height: 380px;
  background: var(--color-light);
}
.hl-map iframe { width: 100%; height: 100%; border: none; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact { background: var(--color-white); }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  align-items: start;
}

.contact-info h3 { margin-bottom: 24px; }

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.contact-details li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--color-muted);
  font-size: .92rem;
  line-height: 1.5;
}
.contact-details svg { width: 18px; height: 18px; flex-shrink: 0; color: var(--color-accent); margin-top: 2px; }
.contact-details a { color: var(--color-accent); font-weight: 500; }
.contact-details a:hover { text-decoration: underline; }

/* Form */
.contact-form-wrap {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
}

.form-row {
  display: grid;
  gap: 16px;
  margin-bottom: 16px;
}
.form-row--2 { grid-template-columns: 1fr 1fr; }

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}
.form-row + .form-group { margin-top: 0; }

.form-group label {
  font-size: .84rem;
  font-weight: 500;
  color: var(--color-primary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-main);
  font-size: .92rem;
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(41,128,185,.15);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: #aab7c4; }

.btn-submit { width: 100%; margin-top: 4px; padding: 14px; font-size: 1rem; }

.form-status {
  margin-top: 14px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  font-weight: 500;
  display: none;
}
.form-status.success {
  display: block;
  background: #e8f8f0;
  color: #1a7a45;
  border: 1px solid #a0d9ba;
}
.form-status.error {
  display: block;
  background: #fdf0f0;
  color: #a93226;
  border: 1px solid #f1a9a0;
}

.btn-submit[disabled] {
  opacity: .65;
  cursor: not-allowed;
  transform: none;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--color-primary);
  color: rgba(255,255,255,.75);
  padding: 56px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.12);
}

.footer-logo { color: var(--color-white); }
.footer-logo .nav-logo-sub { color: rgba(255,255,255,.6); }
.footer-logo .nav-logo-icon { color: var(--color-light); }
.footer-logo-img { border-radius: var(--radius-sm); opacity: .95; }

.footer-tagline {
  margin-top: 14px;
  font-size: .9rem;
  color: rgba(255,255,255,.6);
  line-height: 1.6;
}

.footer-links h4,
.footer-contact h4 {
  color: var(--color-white);
  font-size: .9rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-links ul,
.footer-contact ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a,
.footer-contact a,
.footer-contact li {
  font-size: .88rem;
  color: rgba(255,255,255,.65);
  line-height: 1.5;
  transition: color var(--transition);
}
.footer-links a:hover,
.footer-contact a:hover { color: var(--color-white); }

.footer-bottom {
  padding: 20px 0;
  text-align: center;
  font-size: .83rem;
  color: rgba(255,255,255,.45);
}

/* ============================================================
   RECEITUÁRIO
   ============================================================ */

.section-intro {
  margin-top: 16px;
  font-size: .97rem;
  color: var(--color-muted);
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

.receituario { background: var(--color-bg); }

.receituario-layout {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  align-items: start;
}

.receituario-notice {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
}

.receituario-notice-icon {
  width: 52px;
  height: 52px;
  background: var(--color-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-accent);
}
.receituario-notice-icon svg { width: 24px; height: 24px; }

.receituario-notice h3 { margin-bottom: 20px; }

.receituario-existing-only {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: #fff8e1;
  border: 1px solid #ffe082;
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  margin-bottom: 20px;
}
.receituario-existing-only svg {
  flex-shrink: 0;
  color: #e6a700;
  margin-top: 1px;
}
.receituario-existing-only p {
  font-size: .84rem;
  color: #6d5a00;
  line-height: 1.5;
  margin: 0;
}

.receituario-steps {
  list-style: decimal;
  padding-left: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}
.receituario-steps li {
  font-size: .9rem;
  color: var(--color-muted);
  line-height: 1.6;
}

.receituario-disclaimer {
  font-size: .82rem;
  color: var(--color-muted);
  background: var(--color-light);
  border-left: 3px solid var(--color-accent);
  padding: 12px 14px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  line-height: 1.6;
}

.receituario-form-wrap {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
}

/* Select element — matches existing input styles */
.form-group select {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-main);
  font-size: .92rem;
  color: var(--color-text);
  background: var(--color-white);
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b5555' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  cursor: pointer;
}
.form-group select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(41,128,185,.15);
}

/* Checkbox row */
.form-group--checkbox { margin-bottom: 20px; }
.checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
}
.checkbox-label input[type="checkbox"] {
  flex-shrink: 0;
  margin-top: 2px;
  width: 16px;
  height: 16px;
  accent-color: var(--color-accent);
  cursor: pointer;
}
.checkbox-text {
  font-size: .88rem;
  color: var(--color-muted);
  line-height: 1.5;
}
.form-group--checkbox {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0 5px;
}
.form-group--checkbox .checkbox-label { gap: 8px; }
.form-group--checkbox .privacy-link {
  color: var(--color-accent);
  text-decoration: underline;
  font-size: .88rem;
  font-weight: 500;
}
.form-group--checkbox .privacy-link:hover { color: var(--color-primary); }

/* Privacy Policy collapsible */
.privacy-policy {
  grid-column: 1 / -1;
  margin-top: 40px;
}

.privacy-details {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.privacy-details summary {
  padding: 16px 22px;
  font-size: .95rem;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: background var(--transition);
}
.privacy-details summary::-webkit-details-marker { display: none; }
.privacy-details summary::before {
  content: '\25B6';
  font-size: .7rem;
  transition: transform var(--transition);
}
.privacy-details[open] summary::before { transform: rotate(90deg); }
.privacy-details summary:hover { background: var(--color-light); }

.privacy-content {
  padding: 8px 22px 28px;
  border-top: 1px solid var(--color-border);
}
.privacy-content h4 {
  font-size: .88rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-top: 20px;
  margin-bottom: 8px;
}
.privacy-content h4:first-child { margin-top: 12px; }
.privacy-content p {
  font-size: .84rem;
  color: var(--color-muted);
  line-height: 1.7;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* Tablet: ≤ 960px */
@media (max-width: 960px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-cards { grid-template-columns: repeat(3, 1fr); }
  .cards-grid--4 { grid-template-columns: repeat(2, 1fr); }
  .hl-grid { grid-template-columns: 1fr; }
  .hl-map { height: 300px; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .receituario-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .team-grid { grid-template-columns: 1fr; }
}

/* Mobile: ≤ 640px */
@media (max-width: 640px) {
  :root { --section-gap: 56px; }

  /* Nav */
  .nav-hamburger { display: flex; }
  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    align-items: stretch;
    padding: 16px var(--container-pad) 24px;
    gap: 4px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  .nav-links a {
    padding: 11px 14px;
    border-radius: var(--radius-sm);
  }
  .lang-toggle { width: max-content; }

  /* Hero */
  .hero { padding: 72px 0 60px; min-height: auto; }
  .hero-ctas { flex-direction: column; }
  .hero-ctas .btn { width: 100%; text-align: center; }

  /* About */
  .about-cards { grid-template-columns: 1fr; }

  /* Team */
  .doctor-card { flex-direction: column; align-items: center; text-align: center; }
  .doctor-tags { justify-content: center; }

  /* Services */
  .cards-grid--3,
  .cards-grid--4 { grid-template-columns: 1fr; }

  /* Form */
  .form-row--2 { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: 24px 18px; }
  .receituario-form-wrap { padding: 24px 18px; }

  /* Footer */
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}