:root{
  --teal: #7aafa1;
  --purple: #5f5faa;
  --gray: #606161;

  --bg: #f8fbfa;
  --bg-soft: #f1f7f5;
  --white: #ffffff;

  --text: #2f3131;
  --muted: #5f6464;
  --line: #d9e3e0;

  --max: 1140px;

  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --radius-pill: 999px;

  --shadow-soft: 0 12px 30px rgba(95,95,170,.10);
  --shadow-card: 0 10px 24px rgba(60,70,90,.08);
  --shadow-hover: 0 16px 34px rgba(95,95,170,.16);

  --transition: .22s ease;
}

*{
  box-sizing: border-box;
}

html{
  scroll-behavior: smooth;
}

body{
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  line-height: 1.6;
  background:
    radial-gradient(circle at 15% 10%, rgba(122,175,161,.24), transparent 30%),
    radial-gradient(circle at 88% 6%, rgba(95,95,170,.18), transparent 34%),
    radial-gradient(circle at 82% 82%, rgba(122,175,161,.14), transparent 38%),
    var(--bg);
}

img{
  display: block;
  max-width: 100%;
  height: auto;
}

a{
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible{
  outline: 3px solid rgba(95,95,170,.24);
  outline-offset: 2px;
}

.container{
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header{
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(248,251,250,.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(0,0,0,.05);
}

.header-inner{
  min-height: 96px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  position: relative;
}

.brand{
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.logo{
  height: 80px;
  width: auto;
  display: block;
  transition: transform .25s ease;
}

.brand:hover .logo{
  transform: scale(1.03);
}

.brand-text{
  font-family: "Istok Web", sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: .6px;
  background: linear-gradient(135deg,#5f5faa,#7aafa1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
}

.main-nav ul{
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.main-nav a{
  display: inline-block;
  padding: 10px 14px;
  border-radius: var(--radius-pill);
  color: var(--gray);
  font-weight: 700;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.main-nav a:hover,
.main-nav a.active{
  background: rgba(122,175,161,.14);
  color: var(--purple);
}

.main-nav a:active{
  transform: translateY(1px);
}

/* Hamburger button */
.nav-toggle{
  display: none;
  width: 52px;
  height: 52px;
  padding: 0;
  border: 1px solid rgba(95,95,170,.14);
  border-radius: 14px;
  background: rgba(255,255,255,.72);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span{
  display: block;
  width: 22px;
  height: 2.5px;
  background: var(--purple);
  border-radius: 999px;
  transition: transform .2s ease, opacity .2s ease;
}

.nav-toggle.is-open span:nth-child(1){
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2){
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(3){
  transform: translateY(-7px) rotate(-45deg);
}

/* Typography */
h1, h2, h3{
  margin: 0 0 10px;
  line-height: 1.12;
  letter-spacing: -.03em;
}

h1{
  font-size: clamp(2.5rem, 5vw, 4.5rem);
}

h2{
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: var(--purple);
}

h3{
  font-size: 1.3rem;
  color: var(--purple);
}

p{
  margin: 0 0 16px;
}

.section-title{
  margin-bottom: 10px;
}

.section-subtitle{
  max-width: var(--max);
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 1.06rem;
}

.center{
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.eyebrow{
  display: inline-block;
  margin-bottom: 14px;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  background: rgba(122,175,161,.16);
  color: var(--purple);
  font-size: .92rem;
  font-weight: 700;
  letter-spacing: .02em;
}

/* Buttons */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 20px;
  border: 2px solid transparent;
  border-radius: var(--radius-pill);
  font-weight: 700;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
}

.btn:hover{
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn:active{
  transform: translateY(0);
}

.btn-primary{
  color: var(--white);
  background: linear-gradient(135deg, var(--teal), var(--purple));
  box-shadow: var(--shadow-soft);
}

.btn-primary:hover{
  opacity: .98;
}

 .btn-secondary{
  background: var(--white);
  color: var(--purple);
  border-color: rgba(95,95,170,.16);
}

.btn-secondary:hover{
  background: #f6f5fd;
}

/* Sections */
.section{
  padding: 78px 0;
}

.band{
  background: linear-gradient(135deg, rgba(122,175,161,.12), rgba(95,95,170,.08));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

/* Hero */
.hero{
  position: relative;
  overflow: hidden;
  padding: 76px 0 56px;
}

.hero-grid{
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 34px;
  align-items: center;
}

.hero .container{
  position: relative;
  z-index: 1;
}

.hero p{
  max-width: 650px;
  font-size: 1.1rem;
  color: var(--muted);
}

.hero-actions{
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.hero-card{
  position: relative;
  background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.98));
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.hero-card::before{
  content: "";
  position: absolute;
  width: 140px;
  height: 140px;
  top: -40px;
  right: -30px;
  border-radius: 50%;
  background: rgba(122,175,161,.12);
}

.hero-card h3{
  position: relative;
  z-index: 1;
}

.hero-card p{
  position: relative;
  z-index: 1;
  color: var(--muted);
}

.hero-list{
  position: relative;
  z-index: 1;
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.hero-list li{
  padding: 11px 0;
  border-bottom: 1px solid var(--line);
  color: var(--gray);
  font-weight: 700;
}

.hero-list li:last-child{
  border-bottom: 0;
}

/* Animated energy wave */
.energy-wave{
  position: absolute;
  top: -120px;
  left: -140px;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: linear-gradient(
    135deg,
    rgba(122,175,161,.32),
    rgba(95,95,170,.22),
    rgba(122,175,161,.12)
  );
  filter: blur(10px);
  animation: floatEnergy 9s ease-in-out infinite;
  z-index: 0;
}

@keyframes floatEnergy{
  0%{
    transform: translate(0,0) scale(1);
  }
  50%{
    transform: translate(40px,20px) scale(1.05);
  }
  100%{
    transform: translate(0,0) scale(1);
  }
}

/* Page hero */
.page-hero{
  padding: 48px 0 16px;
}

.page-hero h1{
  font-size: clamp(2.3rem, 4vw, 3.7rem);
  color: var(--purple);
}

.page-hero p{
  max-width: var(--max);
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

/* Grid */
.grid{
  display: grid;
  gap: 22px;
}

.grid-3{
  grid-template-columns: repeat(3, 1fr);
}

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

.grid-1{
  grid-template-columns: repeat(1, 1fr);
}

/* Cards */
.card{
  position: relative;
  overflow: hidden;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: 26px;
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.card::before{
  content: "";
  position: absolute;
  width: 120px;
  height: 120px;
  top: -40px;
  right: -40px;
  border-radius: 50%;
  background: rgba(122,175,161,.14);
}

.card:hover{
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(95,95,170,.14);
}

.card > *{
  position: relative;
  z-index: 1;
}

.card p{
  color: var(--muted);
}

.quote strong{
  color: var(--purple);
  font-weight: 700;
}

/* Learn more link */
.learn-more{
  display: inline-block;
  font-weight: 700;
  color: var(--teal);
  transition: color var(--transition), transform var(--transition);
}

.learn-more:hover{
  color: var(--purple);
  transform: translateX(2px);
}

/* FAQ */
.faq-section{
  padding-top: 30px;
}

.faq-list{
  display: grid;
  gap: 12px;
}

.faq-accordion{
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}

.faq-accordion:hover{
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.faq-accordion summary{
  list-style: none;
  cursor: pointer;
  padding: 20px 24px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--purple);
  position: relative;
  padding-right: 56px;
  transition:color .2s ease;
}

.faq-accordion summary:hover{
  color:var(--teal);
}

.faq-accordion summary::-webkit-details-marker{
  display: none;
}

.faq-accordion summary::after{
  content:"+";
  position:absolute;
  right:22px;
  top:50%;
  transform:translateY(-50%) rotate(0deg);
  font-size:1.5rem;
  font-weight:700;
  color:var(--teal);
  transition:transform .25s ease;
}

.faq-accordion[open] summary::after{
  transform:translateY(-50%) rotate(45deg);
}

.faq-answer{
  overflow: hidden;
  max-height: 0;
  transition: max-height .35s ease;
}

.faq-answer p{
  padding: 0 24px 22px;
  margin: 0;
  color: var(--muted);
}

.faq-item:hover{
  transform: translateY(-2px);
  box-shadow: var(--shadow-soft);
}

.faq-item h3{
  margin: 0 0 8px;
  font-size: 1.06rem;
}

.faq-item p{
  margin: 0;
  color: var(--muted);
}

/* CTA box */
.cta-box{
  background: linear-gradient(135deg, var(--teal), var(--purple));
  color: var(--white);
  border-radius: 28px;
  padding: 36px;
  box-shadow: var(--shadow-soft);
}

.cta-box h2{
  margin: 0 0 12px;
  color: var(--white);
  font-size: clamp(2rem, 4vw, 2.9rem);
}

.cta-box p{
  max-width: 720px;
  margin: 0 0 22px;
  color: rgba(255,255,255,.94);
}

.cta-box .btn-secondary{
  background: rgba(255,255,255,.96);
  border-color: rgba(255,255,255,.35);
}

/* Footer */
.site-footer{
  margin-top: 50px;
  border-top: 1px solid var(--line);
  background: #f3f7f6;
}

.footer-inner{
  padding: 28px 0;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-inner p{
  margin: 0 0 8px;
  color: var(--muted);
}

.footer-inner strong{
  color: var(--purple);
}

.footer-links{
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: flex-start;
}

.footer-links a{
  color: var(--purple);
  font-weight: 700;
}

.footer-links a:hover{
  color: var(--teal);
}

/* Lists */
.feature-list{
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.feature-list li{
  margin-bottom: 10px;
}

/* Basic form styling for book/contact pages */
form{
  margin: 0;
}

label{
  display: block;
  margin: 0 0 8px;
  font-weight: 700;
  color: var(--purple);
}

input,
textarea,
select{
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--white);
  color: var(--text);
  font: inherit;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

input::placeholder,
textarea::placeholder{
  color: #8a9090;
}

input:focus,
textarea:focus,
select:focus{
  border-color: rgba(95,95,170,.34);
  box-shadow: 0 0 0 4px rgba(95,95,170,.10);
  outline: none;
}

textarea{
  min-height: 140px;
  resize: vertical;
}

/* Utility spacing */
.mt-0{ margin-top: 0; }
.mt-1{ margin-top: 8px; }
.mt-2{ margin-top: 16px; }
.mt-3{ margin-top: 24px; }
.mt-4{ margin-top: 32px; }

.mb-0{ margin-bottom: 0; }
.mb-1{ margin-bottom: 8px; }
.mb-2{ margin-bottom: 16px; }
.mb-3{ margin-bottom: 24px; }
.mb-4{ margin-bottom: 32px; }

/* Wave dividers */
.wave-divider{
  width: 100%;
  overflow: hidden;
  line-height: 0;
}

.wave-divider svg{
  display: block;
  width: 100%;
  height: 90px;
}

.wave-divider-soft path{
  fill: var(--bg-soft);
}

.wave-divider-white path{
  fill: var(--white);
}

/* Responsive */
@media (max-width: 980px){
  .hero-grid,
  .grid-3,
  .grid-2{
    grid-template-columns: 1fr;
  }

  .footer-inner{
    flex-direction: column;
  }

  .header-inner{
    min-height: 110px;
    padding: 12px 0;
  }

  .logo{
    height: 108px;
  }

  .nav-toggle{
    display: inline-flex;
  }

.main-nav{
  position: absolute;
  top: calc(100% + 8px);
  left: 20px;
  right: 20px;

  background: rgba(255,255,255,.96);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow-soft);
  padding: 14px;

  opacity: 0;
  transform: translateY(-10px);
  max-height: 0;
  overflow: hidden;
  pointer-events: none;

  transition:
    opacity .28s ease,
    transform .28s ease,
    max-height .32s ease;
}

.main-nav.is-open{
  opacity: 1;
  transform: translateY(0);
  max-height: 420px;
  pointer-events: auto;
}

  .main-nav ul{
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .main-nav li{
    width: 100%;
  }

  .main-nav a{
    display: block;
    width: 100%;
    padding: 12px 14px;
    text-align: left;
  }
}

@media (min-width: 981px){
  .main-nav{
    display: block !important;
    opacity: 1 !important;
    transform: none !important;
    max-height: none !important;
    overflow: visible !important;
    pointer-events: auto !important;
    background: transparent !important;
    border: 0 !important;
    box-shadow: none !important;
    padding: 0 !important;
    position: static !important;
  }
}

@media (max-width: 640px){
  body{
    background:
      radial-gradient(circle at 12% 8%, rgba(122,175,161,.20), transparent 28%),
      radial-gradient(circle at 88% 5%, rgba(95,95,170,.14), transparent 30%),
      var(--bg);
  }

  .section{
    padding: 60px 0;
  }

  .hero{
    padding: 56px 0 42px;
  }

  .hero-actions{
    flex-direction: column;
    align-items: stretch;
  }

  .btn{
    width: 100%;
  }

  .logo{
    height: 80px;
  }

  .header-inner{
    min-height: 80px;
  }

  .card,
  .hero-card,
  .cta-box{
    padding: 22px;
  }

  .wave-divider svg{
    height: 64px;
  }

  .energy-wave{
    width: 360px;
    height: 360px;
    top: -80px;
    left: -120px;
  }
}

.form-alert{
  margin: 0 0 20px;
  padding: 16px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
}

.form-success{
  background: rgba(122,175,161,.14);
  border-color: rgba(122,175,161,.35);
  color: #23443d;
}

.form-error{
  background: rgba(180, 70, 70, .08);
  border-color: rgba(180, 70, 70, .22);
  color: #7a2f2f;
}

.form-error ul{
  margin: 10px 0 0;
  padding-left: 20px;
}

.hp-field{
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

}