/* =====================================================
   HEAR.O — style.css
   ===================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ===== CSS VARIABLES ===== */
:root {
  --primary:       #0d1f3c;
  --primary-light: #1a3560;
  --accent:        #1a6cf5;
  --accent-purple: #7c3aed;
  --teal:          #00c896;
  --gradient:      linear-gradient(135deg, #1a6cf5 0%, #7c3aed 100%);
  --gradient-rev:  linear-gradient(135deg, #7c3aed 0%, #1a6cf5 100%);
  --bg:            #ffffff;
  --bg-light:      #f5f7fc;
  --bg-dark:       #0b1628;
  --bg-dark-card:  rgba(255,255,255,0.06);
  --text:          #0d1f3c;
  --text-muted:    #6b7280;
  --text-light:    rgba(255,255,255,0.75);
  --border:        #e5e7eb;
  --border-dark:   rgba(255,255,255,0.10);
  --radius-sm:     10px;
  --radius:        16px;
  --radius-lg:     24px;
  --radius-xl:     32px;
  --transition:    0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm:     0 2px 8px rgba(13,31,60,0.06);
  --shadow-card:   0 4px 24px rgba(26,108,245,0.09);
  --shadow-hover:  0 12px 40px rgba(26,108,245,0.18);
  --shadow-hero:   0 24px 60px rgba(13,31,60,0.12);
  --navbar-h:      76px;
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
ul { list-style: none; }

/* ===== LAYOUT UTILITIES ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
}

.section { padding: 96px 0; }
.section-alt { background: var(--bg-light); }

.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.section-label.light { color: var(--teal); }
.section-title {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--text);
  margin-bottom: 16px;
}
.section-subtitle {
  font-size: 17px;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ===== GRADIENT UTILITIES ===== */
.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== BUTTONS ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  background: var(--gradient);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  border-radius: 50px;
  border: none;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(26,108,245,0.30);
  white-space: nowrap;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(26,108,245,0.40);
}
.btn-primary:active { transform: translateY(0); }

.btn-sm { padding: 10px 20px; font-size: 14px; }

/* ===== BADGE ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 18px;
  border: 1px solid rgba(26,108,245,0.25);
  border-radius: 50px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(26,108,245,0.06);
  margin-bottom: 22px;
}
.badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gradient);
  flex-shrink: 0;
}

/* ===== ANIMATIONS ===== */
.animate {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.animate.visible {
  opacity: 1;
  transform: translateY(0);
}
.animate[data-delay="1"] { transition-delay: 0.10s; }
.animate[data-delay="2"] { transition-delay: 0.20s; }
.animate[data-delay="3"] { transition-delay: 0.30s; }
.animate[data-delay="4"] { transition-delay: 0.40s; }

/* =====================================================
   NAVBAR
   ===================================================== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--navbar-h);
  display: flex;
  align-items: center;
  transition: background var(--transition), box-shadow var(--transition), height var(--transition);
}
/* Container navbar içinde tam genişliği kaplar */
.navbar > .container {
  width: 100%;
}
.navbar.scrolled {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(0,0,0,0.08), 0 4px 20px rgba(13,31,60,0.06);
  height: 64px;
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  width: 100%;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.nav-logo-img {
  height: 36px;
  width: auto;
  border-radius: 8px;
  object-fit: contain;
}
.nav-brand-text {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: -0.5px;
  line-height: 1;
}
.nav-brand-text .brand-dot {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}
.nav-links a {
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  border-radius: 8px;
  transition: color var(--transition), background var(--transition);
}
.nav-links a:hover,
.nav-links a.nav-active {
  color: var(--primary);
  background: var(--bg-light);
}
.nav-links a.nav-active {
  font-weight: 600;
}
.nav-cta { margin-left: 8px; }

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 8px;
  margin-left: auto;
  border-radius: 8px;
  transition: background var(--transition);
}
.hamburger:hover { background: var(--bg-light); }
.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
  transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* =====================================================
   HERO
   ===================================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--navbar-h);
  background: var(--bg);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -180px; right: -180px;
  width: 700px; height: 700px;
  background: radial-gradient(ellipse at center, rgba(26,108,245,0.08) 0%, transparent 65%);
  border-radius: 50%;
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -100px; left: -100px;
  width: 500px; height: 500px;
  background: radial-gradient(ellipse at center, rgba(124,58,237,0.06) 0%, transparent 65%);
  border-radius: 50%;
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  padding: 64px 0;
  position: relative;
  z-index: 1;
}
.hero-content { max-width: 560px; }
.hero-title {
  font-size: clamp(32px, 4.5vw, 56px);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -1px;
  color: var(--text);
  margin-bottom: 20px;
}
.hero-subtitle {
  font-size: 18px;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 36px;
  max-width: 460px;
}
.hero-cta { font-size: 16px; padding: 16px 36px; }

.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-glow {
  position: absolute;
  inset: -15%;
  background: radial-gradient(ellipse at center, rgba(26,108,245,0.18) 0%, rgba(124,58,237,0.08) 50%, transparent 70%);
  filter: blur(32px);
  border-radius: 50%;
  z-index: 0;
}
.hero-img {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 680px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-hero);
  object-fit: cover;
}

/* =====================================================
   INNOVATIONS — 3 CARDS
   ===================================================== */
.innovations { background: var(--bg-light); }
.innovations-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.innovation-card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 36px 28px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.innovation-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
  border-radius: 3px 3px 0 0;
}
.innovation-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.innovation-card:hover::before { transform: scaleX(1); }

.card-icon {
  width: 56px; height: 56px;
  background: var(--gradient);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  box-shadow: 0 6px 20px rgba(26,108,245,0.25);
}
.card-icon svg { width: 28px; height: 28px; }
.card-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.card-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.3;
}
.card-text {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.7;
}

/* =====================================================
   AURAHUB — SPLIT SECTION
   ===================================================== */
.aurahub { background: var(--bg); }
.aurahub-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.aurahub-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.aurahub-visual::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,108,245,0.06) 0%, transparent 60%);
  border-radius: var(--radius-lg);
}
.aurahub-img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-hero);
  object-fit: cover;
  aspect-ratio: 3/2;
}
.aurahub-content {}
.aurahub-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.aurahub-title {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--text);
  margin-bottom: 32px;
  letter-spacing: -0.5px;
}
.feature-list { display: flex; flex-direction: column; gap: 0; }
.feature-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.feature-item:last-child { border-bottom: none; }
.feature-icon {
  width: 46px; height: 46px;
  background: var(--gradient);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(26,108,245,0.22);
}
.feature-icon svg { width: 22px; height: 22px; }
.feature-body {}
.feature-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}
.feature-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
}

/* =====================================================
   APP ECOSYSTEM — TABS
   ===================================================== */
.app-ecosystem { background: var(--bg-light); }
.tabs {}
.tabs-header {
  display: flex;
  border-bottom: 2px solid var(--border);
  margin-bottom: 40px;
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs-header::-webkit-scrollbar { display: none; }
.tab-btn {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  transition: color var(--transition);
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
}
.tab-btn:hover { color: var(--primary); }
.tab-btn.active { color: var(--accent); }
.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 3px;
  background: var(--gradient);
  border-radius: 3px;
}
.tab-btn .tab-icon {
  width: 20px; height: 20px;
  flex-shrink: 0;
  opacity: 0.5;
  transition: opacity var(--transition);
}
.tab-btn.active .tab-icon,
.tab-btn:hover .tab-icon { opacity: 1; }

.tabs-body {}
.tab-panel { display: none; }
.tab-panel.active { display: block; }

.tab-content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.tab-features { display: flex; flex-direction: column; gap: 12px; }
.tab-feature {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 20px 22px;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}
.tab-feature:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-card);
}
.tab-feat-icon {
  width: 44px; height: 44px;
  background: var(--gradient);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 14px rgba(26,108,245,0.20);
}
.tab-feat-icon svg { width: 20px; height: 20px; }
.tab-feat-body {}
.tab-feat-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}
.tab-feat-desc {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.6;
}
.tab-visual {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
}
.tab-visual img {
  width: 100%;
  border-radius: var(--radius-lg);
  object-fit: cover;
  aspect-ratio: 4/3;
  display: block;
}

/* =====================================================
   AUDIOLOGIST — DARK SECTION
   ===================================================== */
.audiologist {
  background: var(--bg-dark);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.audiologist::before {
  content: '';
  position: absolute;
  top: -200px; right: -150px;
  width: 650px; height: 650px;
  background: radial-gradient(ellipse at center, rgba(26,108,245,0.14) 0%, transparent 65%);
  border-radius: 50%;
  pointer-events: none;
}
.audiologist::after {
  content: '';
  position: absolute;
  bottom: -180px; left: -120px;
  width: 550px; height: 550px;
  background: radial-gradient(ellipse at center, rgba(124,58,237,0.11) 0%, transparent 65%);
  border-radius: 50%;
  pointer-events: none;
}
.audiologist-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.audiologist-text {}
.audiologist-title {
  font-size: clamp(26px, 3.2vw, 40px);
  font-weight: 800;
  line-height: 1.22;
  color: #fff;
  margin-bottom: 40px;
  letter-spacing: -0.5px;
}
.audiologist-cards { display: flex; flex-direction: column; gap: 14px; }
.audiologist-card {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 22px 24px;
  background: var(--bg-dark-card);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius);
  transition: background var(--transition), border-color var(--transition);
}
.audiologist-card:hover {
  background: rgba(255,255,255,0.09);
  border-color: rgba(255,255,255,0.18);
}
.aud-card-icon {
  width: 46px; height: 46px;
  background: var(--gradient);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 16px rgba(26,108,245,0.30);
}
.aud-card-icon svg { width: 22px; height: 22px; }
.aud-card-body {}
.aud-card-title {
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 5px;
}
.aud-card-desc {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.6;
}
.audiologist-visual {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.audiologist-visual::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: var(--gradient);
  border-radius: calc(var(--radius-xl) + 2px);
  z-index: 0;
  opacity: 0.4;
}
.audiologist-img-wrap {
  position: relative;
  z-index: 1;
  margin: 2px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--primary-light);
}
.audiologist-img {
  width: 100%;
  border-radius: var(--radius-xl);
  object-fit: cover;
  aspect-ratio: 5/4;
  display: block;
  opacity: 0.92;
}

/* =====================================================
   FOOTER
   ===================================================== */
.footer {
  background: #07101e;
  color: rgba(255,255,255,0.55);
  padding: 64px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand {}
.footer-logo-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.footer-logo-img {
  height: 32px;
  width: auto;
  border-radius: 6px;
  object-fit: contain;
}
.footer-brand-name {
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.5px;
}
.footer-brand-name .brand-dot {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.footer-slogan {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.30);
  margin-bottom: 18px;
}
.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.45);
  max-width: 280px;
}
.footer-col-title {
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 20px;
}
.footer-nav-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-nav-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.50);
  transition: color var(--transition);
}
.footer-nav-links a:hover { color: #fff; }
.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,0.50);
  margin-bottom: 12px;
}
.footer-contact-item a {
  color: rgba(255,255,255,0.50);
  transition: color var(--transition);
}
.footer-contact-item a:hover { color: var(--teal); }
.footer-contact-icon {
  width: 32px; height: 32px;
  background: rgba(255,255,255,0.07);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.footer-contact-icon svg { width: 16px; height: 16px; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-copy {
  font-size: 13px;
  color: rgba(255,255,255,0.30);
}
.footer-domain {
  font-size: 13px;
  color: rgba(255,255,255,0.30);
}
.footer-domain a {
  color: rgba(26,108,245,0.70);
  transition: color var(--transition);
}
.footer-domain a:hover { color: var(--accent); }

/* =====================================================
   RESPONSIVE — TABLET (≤1024px)
   ===================================================== */
@media (max-width: 1024px) {
  .container { padding: 0 20px; }
  .section { padding: 80px 0; }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }
  .hero-content { max-width: 100%; }
  .hero-subtitle { max-width: 100%; }
  .hero-visual { max-width: 100%; margin: 0 auto; }

  .innovations-grid { grid-template-columns: 1fr; gap: 16px; }

  .aurahub-split {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .aurahub-visual { max-width: 100%; margin: 0 auto; }

  .tab-content-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .tab-visual { max-width: 100%; }

  .audiologist-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .audiologist-visual { max-width: 100%; margin: 0 auto; }

  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* =====================================================
   RESPONSIVE — MOBILE (≤768px)
   ===================================================== */
@media (max-width: 768px) {
  :root { --navbar-h: 64px; }

  /* Mobil nav: logo sola, hamburger sağa */
  .nav-inner {
    justify-content: space-between;
  }
  .nav-links {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: var(--navbar-h); left: 0; right: 0;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 16px 20px 24px;
    gap: 4px;
    box-shadow: 0 8px 32px rgba(13,31,60,0.10);
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
    z-index: 999;
    border-top: 1px solid var(--border);
    /* Sıfırla: desktop'taki margin-left: auto iptal */
    margin-left: 0;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  .nav-links a {
    padding: 12px 16px;
    font-size: 16px;
    border-radius: 10px;
  }
  .nav-cta { display: none; }
  .hamburger {
    display: flex;
    /* margin-left: auto kaldırıldı — space-between zaten sağa iter */
    margin-left: 0;
  }

  .hero { text-align: center; }
  .hero-title { font-size: clamp(28px, 7vw, 40px); }
  .hero-subtitle { font-size: 16px; }

  .section { padding: 64px 0; }
  .section-title { font-size: 26px; }
  .section-header { margin-bottom: 36px; }

  .aurahub-split,
  .audiologist-layout {
    grid-template-columns: 1fr;
  }

  .tabs-header { gap: 0; }
  .tab-btn { padding: 12px 16px 14px; font-size: 13px; }

  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* =====================================================
   RESPONSIVE — SMALL MOBILE (≤480px)
   ===================================================== */
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-title { font-size: 28px; letter-spacing: -0.5px; }
  .btn-primary { padding: 13px 24px; font-size: 14px; }
  .hero-cta { padding: 14px 28px; }
  .innovation-card { padding: 28px 22px; }
  .audiologist-card { padding: 18px 18px; gap: 14px; }
  .tab-feature { padding: 16px 18px; gap: 12px; }
  .tab-btn { padding: 10px 12px 12px; font-size: 12px; }
}