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

:root {
  --primary:       #6C3FC5;
  --primary-light: #8B5CF6;
  --primary-dark:  #4C2E9C;
  --accent:        #0EC8B0;
  --accent-light:  #34D4BE;
  --accent-dark:   #0A9E8A;
  --bg:            #0D0B1A;
  --bg-card:       #161228;
  --bg-glass:      rgba(108, 63, 197, 0.08);
  --text:          #F1EEF8;
  --text-muted:    #A799CC;
  --text-dark:     #6B5E8A;
  --border:        rgba(108, 63, 197, 0.25);
  --success:       #22C55E;
  --warning:       #F59E0B;
  --danger:        #EF4444;
  --radius-sm:     10px;
  --radius-md:     16px;
  --radius-lg:     24px;
  --radius-xl:     36px;
  --shadow-sm:     0 4px 16px rgba(108,63,197,0.15);
  --shadow-md:     0 8px 32px rgba(108,63,197,0.25);
  --shadow-lg:     0 16px 64px rgba(108,63,197,0.35);
  --transition:    all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}


*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}


body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 0%, rgba(108,63,197,0.18) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 100%, rgba(14,200,176,0.12) 0%, transparent 60%),
    radial-gradient(ellipse 50% 60% at 50% 50%, rgba(76,46,156,0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}


h1, h2, h3, h4 { font-family: 'Poppins', sans-serif; font-weight: 700; line-height: 1.2; }
h1 { font-size: clamp(2rem, 5vw, 3.8rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.8rem); }
p  { color: var(--text-muted); line-height: 1.7; }
a  { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }


::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 100px; }


.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(1rem, 4vw, 2.5rem);
}


section { position: relative; z-index: 1; }
.section-header { text-align: center; margin-bottom: 3.5rem; }
.section-header p { max-width: 600px; margin: 1rem auto 0; font-size: 1.1rem; }


.gradient-text {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}


.badge {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .35rem .9rem;
  border-radius: 100px;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .05em;
  text-transform: uppercase;
  border: 1px solid var(--border);
  background: var(--bg-glass);
  backdrop-filter: blur(8px);
  color: var(--accent);
  margin-bottom: 1.2rem;
}


.btn {
  display: inline-flex;
  align-items: center;
  gap: .55rem;
  padding: .8rem 1.8rem;
  border-radius: var(--radius-lg);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  font-family: 'Inter', sans-serif;
}
.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.08);
  opacity: 0;
  transition: var(--transition);
}
.btn:hover::before { opacity: 1; }
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn-primary:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); }

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1.5px solid var(--border);
}
.btn-secondary:hover { border-color: var(--primary-light); color: var(--primary-light); }

.btn-accent {
  background: linear-gradient(135deg, var(--accent-dark) 0%, var(--accent) 100%);
  color: #fff;
  box-shadow: 0 8px 24px rgba(14,200,176,0.25);
}
.btn-accent:hover { box-shadow: 0 12px 32px rgba(14,200,176,0.35); transform: translateY(-2px); }

.btn-lg { padding: 1rem 2.4rem; font-size: 1.1rem; }
.btn-sm { padding: .55rem 1.3rem; font-size: .9rem; }


.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
}
.card:hover { border-color: var(--primary-light); box-shadow: var(--shadow-md); }
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}
.card:hover::before { opacity: 1; }


.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1rem 0;
  transition: var(--transition);
}
.navbar.scrolled {
  background: rgba(13,11,26,0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: .7rem 0;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-family: 'Poppins', sans-serif;
  font-weight: 800;
  font-size: 1.55rem;
  color: var(--text);
}
.nav-logo img { width: 36px; height: 36px; border-radius: 8px; }
.nav-logo span { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}
.nav-links a {
  color: var(--text-muted);
  font-weight: 500;
  font-size: .95rem;
  transition: var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }

.nav-cta { display: flex; align-items: center; gap: .8rem; }


.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: .4rem;
  background: none;
  border: none;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }


.mobile-nav {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(13,11,26,0.97);
  backdrop-filter: blur(16px);
  z-index: 999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  opacity: 0;
  transform: scale(1.05);
  transition: var(--transition);
}
.mobile-nav.open { display: flex; opacity: 1; transform: scale(1); }
.mobile-nav a {
  color: var(--text);
  font-size: 1.5rem;
  font-weight: 600;
  font-family: 'Poppins', sans-serif;
}


.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 6rem 0 4rem;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.hero-content { order: 1; }
.hero-visual  { order: 2; }

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .4rem 1rem;
  border-radius: 100px;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(14,200,176,0.1);
  border: 1px solid rgba(14,200,176,0.25);
  margin-bottom: 1.5rem;
  animation: fadeInDown .6s ease;
}
.hero-eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); animation: pulse 2s infinite; }

.hero h1 { animation: fadeInUp .7s ease .1s both; margin-bottom: 1.2rem; }
.hero p.lead {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--text-muted);
  max-width: 520px;
  margin-bottom: 2.2rem;
  animation: fadeInUp .7s ease .2s both;
}
.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  animation: fadeInUp .7s ease .3s both;
}
.hero-stats {
  display: flex;
  gap: 2rem;
  margin-top: 3rem;
  animation: fadeInUp .7s ease .4s both;
}
.stat-item { text-align: center; }
.stat-num {
  display: block;
  font-family: 'Poppins', sans-serif;
  font-size: 1.8rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label { font-size: .8rem; color: var(--text-dark); font-weight: 500; }


.hero-phone {
  position: relative;
  display: flex;
  justify-content: center;
  animation: float 6s ease-in-out infinite;
}
.phone-frame {
  width: 280px;
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: 40px;
  padding: 1.5rem 1rem;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.phone-screen { display: flex; flex-direction: column; gap: .8rem; }
.phone-btn {
  display: flex;
  align-items: center;
  gap: .7rem;
  padding: .85rem 1.1rem;
  border-radius: var(--radius-md);
  font-size: .85rem;
  font-weight: 600;
  transition: var(--transition);
}
.phone-btn .icon { font-size: 1.3rem; }
.phone-btn-blue { background: rgba(108,63,197,0.2); border: 1px solid rgba(108,63,197,0.4); color: var(--primary-light); }
.phone-btn-teal { background: rgba(14,200,176,0.15); border: 1px solid rgba(14,200,176,0.35); color: var(--accent); }
.phone-btn-orange { background: rgba(245,158,11,0.15); border: 1px solid rgba(245,158,11,0.35); color: #F59E0B; }
.phone-badge {
  position: absolute;
  top: -12px; right: -12px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: var(--shadow-md);
  animation: spin 8s linear infinite;
}
.orbit {
  position: absolute;
  inset: -40px;
  border: 1px dashed rgba(108,63,197,0.15);
  border-radius: 50%;
  pointer-events: none;
  animation: spin 20s linear infinite reverse;
}
.orbit-dot {
  position: absolute;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent);
  top: 0; left: 50%;
  transform: translateX(-50%);
  box-shadow: 0 0 12px var(--accent);
}



.how { padding: 6rem 0; }
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  position: relative;
}
.steps::before {
  content: '';
  position: absolute;
  top: 40px; left: 10%; right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}
.step { text-align: center; padding: 1.5rem; }
.step-num {
  width: 56px; height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Poppins', sans-serif;
  font-weight: 800;
  font-size: 1.2rem;
  color: #fff;
  margin: 0 auto 1rem;
  box-shadow: var(--shadow-sm);
}
.step h3 { margin-bottom: .5rem; font-size: 1.1rem; }


.cta-section {
  padding: 6rem 0;
}
.cta-box {
  text-align: center;
  padding: 5rem 2rem;
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, rgba(108,63,197,0.2), rgba(14,200,176,0.1));
  border: 1px solid rgba(108,63,197,0.3);
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: '';
  position: absolute;
  width: 300px; height: 300px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(108,63,197,0.2), transparent);
  top: -80px; left: -80px;
}
.cta-box h2 { margin-bottom: 1rem; }
.cta-box p { max-width: 520px; margin: 0 auto 2rem; font-size: 1.1rem; }
.cta-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }


.footer {
  padding: 3rem 0 2rem;
  border-top: 1px solid var(--border);
  position: relative; z-index: 1;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}
.footer-brand .nav-logo { margin-bottom: 1rem; }
.footer-brand p { font-size: .9rem; max-width: 300px; }
.footer-links h4 { font-size: 1rem; margin-bottom: 1.2rem; color: var(--text); }
.footer-links ul { list-style: none; display: flex; flex-direction: column; gap: .7rem; }
.footer-links ul a { color: var(--text-muted); font-size: .9rem; }
.footer-links ul a:hover { color: var(--text); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-bottom p { font-size: .85rem; }
.footer-team {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .85rem;
  color: var(--text-muted);
}
.footer-team span { color: var(--accent); font-weight: 600; }


.page-header {
  padding: 9rem 0 5rem;
  text-align: center;
}
.page-title { margin-bottom: 1rem; }
.page-subtitle { font-size: 1.15rem; max-width: 600px; margin: 0 auto; }


.keyboard-section { padding: 3rem 0 6rem; }

.keyboard-wrapper {
  max-width: 960px;
  margin: 0 auto;
}

.keyboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.2rem;
  margin-bottom: 2rem;
}

.aac-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .8rem;
  padding: 1.8rem 1rem;
  border-radius: var(--radius-lg);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  text-align: center;
  min-height: 140px;
  position: relative;
  overflow: hidden;
  background: var(--bg-card);
  color: var(--text);
}
.aac-btn::after {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  background: rgba(255,255,255,0.06);
  transition: var(--transition);
}
.aac-btn:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.aac-btn:hover::after { opacity: 1; }
.aac-btn:active { transform: scale(0.96) translateY(0); }

.aac-btn.speaking {
  animation: speakPulse .5s ease;
}

.aac-icon { font-size: 2.5rem; line-height: 1; }
.aac-label { font-size: .95rem; line-height: 1.3; }

.ripple {
  position: absolute;
  border-radius: 50%;
  transform: scale(0);
  animation: rippleAnim .6s linear;
  background: rgba(255,255,255,0.2);
  pointer-events: none;
}


.aac-blue   { border-color: rgba(108,63,197,0.5); background: rgba(108,63,197,0.1); }
.aac-blue:hover { border-color: var(--primary-light); }
.aac-teal   { border-color: rgba(14,200,176,0.5); background: rgba(14,200,176,0.08); }
.aac-teal:hover { border-color: var(--accent); }
.aac-orange { border-color: rgba(245,158,11,0.5); background: rgba(245,158,11,0.08); }
.aac-orange:hover { border-color: #F59E0B; }
.aac-rose   { border-color: rgba(239,68,68,0.5); background: rgba(239,68,68,0.08); }
.aac-rose:hover { border-color: #EF4444; }
.aac-green  { border-color: rgba(34,197,94,0.5); background: rgba(34,197,94,0.08); }
.aac-green:hover { border-color: var(--success); }
.aac-purple { border-color: rgba(168,85,247,0.5); background: rgba(168,85,247,0.08); }
.aac-purple:hover { border-color: #A855F7; }
.aac-cyan   { border-color: rgba(6,182,212,0.5); background: rgba(6,182,212,0.08); }
.aac-cyan:hover { border-color: #06B6D4; }
.aac-pink   { border-color: rgba(236,72,153,0.5); background: rgba(236,72,153,0.08); }
.aac-pink:hover { border-color: #EC4899; }
.aac-yellow { border-color: rgba(234,179,8,0.5); background: rgba(234,179,8,0.08); }
.aac-yellow:hover { border-color: #EAB308; }


.speech-indicator {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.2rem 1.8rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 1.5rem;
}
.speech-bars {
  display: flex;
  align-items: center;
  gap: 3px;
}
.speech-bar {
  width: 4px;
  border-radius: 2px;
  background: var(--primary);
  height: 8px;
  transition: height .2s ease;
}
.speaking-active .speech-bar { animation: equalizer .8s ease-in-out infinite; }
.speech-bar:nth-child(2) { animation-delay: .1s !important; height: 16px; }
.speech-bar:nth-child(3) { animation-delay: .2s !important; height: 24px; }
.speech-bar:nth-child(4) { animation-delay: .1s !important; height: 16px; }
.speech-text { font-weight: 600; }
.speech-label { color: var(--text-muted); font-size: .85rem; }


.keyboard-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
  padding: 1.2rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}
.control-label { font-size: .85rem; color: var(--text-muted); font-weight: 500; }
.control-select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: .45rem .9rem;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
}
.control-slider { cursor: pointer; accent-color: var(--primary); }


.quiz-section { padding: 3rem 0 6rem; }

.quiz-wrapper { max-width: 780px; margin: 0 auto; }


.quiz-intro { text-align: center; }
.quiz-intro-card {
  padding: 3.5rem 2.5rem;
}
.quiz-intro-icon { font-size: 4rem; margin-bottom: 1.5rem; }
.quiz-intro h2 { margin-bottom: 1rem; }
.quiz-intro p { margin-bottom: 2rem; font-size: 1.05rem; }


.quiz-progress-wrap { margin-bottom: 2rem; }
.quiz-progress-label {
  display: flex;
  justify-content: space-between;
  font-size: .85rem;
  color: var(--text-muted);
  margin-bottom: .6rem;
}
.quiz-progress-bar {
  height: 8px;
  background: var(--bg-card);
  border-radius: 100px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.quiz-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 100px;
  transition: width .5s cubic-bezier(0.4, 0, 0.2, 1);
}


.question-card { padding: 2.5rem; }
.question-num {
  font-size: .8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--accent);
  margin-bottom: .6rem;
}
.question-text { font-size: clamp(1.1rem, 2.5vw, 1.4rem); font-weight: 700; margin-bottom: 2rem; color: var(--text); }
.options-grid { display: grid; gap: .9rem; }
.option-btn {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.4rem;
  border-radius: var(--radius-md);
  border: 2px solid var(--border);
  background: rgba(255,255,255,0.02);
  color: var(--text);
  font-size: .98rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  text-align: left;
  font-family: 'Inter', sans-serif;
  width: 100%;
}
.option-btn:hover:not(:disabled) { border-color: var(--primary-light); background: var(--bg-glass); }
.option-btn.correct { border-color: var(--success); background: rgba(34,197,94,0.1); color: var(--success); }
.option-btn.wrong   { border-color: var(--danger); background: rgba(239,68,68,0.1); color: var(--danger); }
.option-btn:disabled { cursor: not-allowed; }
.option-letter {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: .85rem;
  flex-shrink: 0;
  transition: var(--transition);
}
.option-btn.correct .option-letter { background: var(--success); color: #fff; }
.option-btn.wrong   .option-letter { background: var(--danger);  color: #fff; }

.quiz-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.5rem;
}


.quiz-result { text-align: center; animation: fadeInUp .6s ease; }
.result-card { padding: 3.5rem 2.5rem; }
.result-icon-wrap {
  width: 100px; height: 100px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.8rem;
  margin: 0 auto 1.5rem;
  box-shadow: var(--shadow-md);
}
.result-score {
  font-family: 'Poppins', sans-serif;
  font-size: 4rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary-light), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: .5rem;
}
.result-card h2 { margin-bottom: .5rem; }
.result-card > p { margin-bottom: 2rem; }


.cert-form {
  display: flex;
  gap: .8rem;
  max-width: 480px;
  margin: 0 auto 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}
.cert-form input {
  flex: 1;
  min-width: 200px;
  padding: .85rem 1.2rem;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: .95rem;
  font-family: 'Inter', sans-serif;
  transition: var(--transition);
}
.cert-form input:focus { outline: none; border-color: var(--primary-light); box-shadow: 0 0 0 3px rgba(108,63,197,0.15); }
.cert-form input::placeholder { color: var(--text-dark); }

.cert-hint { font-size: .85rem; color: var(--text-muted); }


.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 9999;
  padding: 1rem 1.6rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: .95rem;
  box-shadow: var(--shadow-lg);
  transform: translateX(200%);
  transition: transform .4s cubic-bezier(0.4, 0, 0.2, 1);
  max-width: 340px;
}
.toast.show { transform: translateX(0); }
.toast-success { background: var(--success); color: #fff; }
.toast-error   { background: var(--danger);  color: #fff; }
.toast-info    { background: var(--primary); color: #fff; }


@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-16px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-18px); }
}
@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .6; transform: scale(.8); }
}
@keyframes rippleAnim {
  to { transform: scale(4); opacity: 0; }
}
@keyframes speakPulse {
  0%   { box-shadow: 0 0 0 0 rgba(14,200,176, 0.6); }
  70%  { box-shadow: 0 0 0 20px rgba(14,200,176, 0); }
  100% { box-shadow: 0 0 0 0 rgba(14,200,176, 0); }
}
@keyframes equalizer {
  0%, 100% { height: 8px; }
  50%       { height: 24px; }
}


.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}


.info-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .info-split { gap: 2rem; }
}

@media (max-width: 850px) {
  .info-split { grid-template-columns: 1fr; text-align: left; }
  .options-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }

  .hero-grid { grid-template-columns: 1fr; text-align: center; gap: 2.5rem; }
  .hero-visual { order: -1; }
  .hero p.lead, .hero-actions { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }

  .hero-phone { transform: scale(.85); }
  .keyboard-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; text-align: center; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .steps::before { display: none; }
  .cert-form { flex-direction: column; }
  .cert-form input { min-width: unset; width: 100%; border-radius: var(--radius-lg); margin-bottom: 0.5rem; }
  .cert-form button { width: 100%; border-radius: var(--radius-lg) !important; }
  .quiz-nav { flex-direction: column; gap: 1rem; }
  .quiz-nav .btn { width: 100%; justify-content: center; }
  
  .card { padding: 1.5rem; }
}

@media (max-width: 480px) {
  .keyboard-grid { grid-template-columns: repeat(2, 1fr); gap: 0.6rem; }
  .aac-btn { min-height: 100px; padding: 1rem 0.5rem; }
  .aac-icon { font-size: 1.8rem; }
  .aac-label { font-size: .8rem; }
  .hero-stats { gap: 1rem; flex-wrap: wrap; }
  .cta-buttons { flex-direction: column; align-items: stretch; }
  .info-split { gap: 1.5rem; }
  .btn-lg { padding: 0.8rem 1.5rem; font-size: 1rem; }
}