/* =========================================================
   imeri. — tutoring site
   Palette: light green field + vibrant lime signature accent
   Type: Barlow (display + body), Barlow Condensed (labels)
   ========================================================= */

:root{
  --bg:            #F1FAEA;
  --bg-alt:        #E5F5D8;
  --surface:       #FFFFFF;
  --ink:           #142B1B;
  --ink-soft:      #4A6252;
  --primary:       #3FA34D;
  --primary-dark:  #276B34;
  --primary-ink:   #0E3418;
  --lime:          #CFF23A;
  --lime-ink:      #22300D;
  --border:        #D3E8C4;
  --shadow: 0 20px 40px -20px rgba(20,43,27,0.25);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 10px;
}

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

html{ scroll-behavior: smooth; }

body{
  margin:0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Barlow", -apple-system, BlinkMacSystemFont, sans-serif;
  font-weight: 500;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family: inherit; cursor:pointer; }

.wrap{
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 32px;
}

.eyebrow{
  font-family: "Barlow Condensed", "Barlow", sans-serif;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.85rem;
  color: var(--primary-dark);
  margin: 0 0 10px;
}
.eyebrow.center{ text-align:center; }

.section-title{
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.1;
  margin: 0 0 48px;
  max-width: 720px;
}
.section-title.center{ margin-left:auto; margin-right:auto; text-align:center; }

/* subtle background grain / texture for warmth */
.grain{
  position: fixed; inset:0; pointer-events:none; z-index: 1;
  background-image: radial-gradient(rgba(20,43,27,0.035) 1px, transparent 1px);
  background-size: 3px 3px;
  opacity: 0.5;
}

/* ---------------- Buttons ---------------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding: 16px 30px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
  border: 2px solid transparent;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
  white-space: nowrap;
}
.btn-primary{
  background: var(--ink);
  color: var(--lime);
}
.btn-primary:hover{ transform: translateY(-3px); box-shadow: var(--shadow); background: var(--primary-dark); color:#fff; }

.btn-ghost{
  background: transparent;
  border-color: var(--ink);
  color: var(--ink);
}
.btn-ghost:hover{ background: var(--ink); color: var(--lime); transform: translateY(-3px); }

.btn-small{ padding: 11px 22px; font-size: 0.9rem; }
.btn-block{ width: 100%; }

/* ---------------- Header ---------------- */
.site-header{
  position: sticky; top:0; z-index: 50;
  background: rgba(241,250,234,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding-top: 18px; padding-bottom: 18px;
}
.logo{
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.02em;
}
.logo .dot{ color: var(--primary); }

.main-nav{ display:flex; gap: 36px; }
.main-nav a{
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--ink-soft);
  transition: color 0.15s ease;
}
.main-nav a:hover{ color: var(--ink); }

.header-cta{ display:flex; align-items:center; gap: 18px; }

.nav-toggle{
  display:none;
  width: 40px; height: 32px;
  background:none; border:none;
  flex-direction: column; justify-content: space-between;
  padding: 4px 0;
}
.nav-toggle span{ display:block; height:3px; border-radius: 2px; background: var(--ink); }

/* ---------------- Hero ---------------- */
.hero{
  display:grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items:center;
  padding: 76px 32px 90px;
  position: relative;
}

.hero-title{
  font-size: clamp(3rem, 6.6vw, 5.6rem);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: -0.02em;
  margin: 0 0 26px;
}

.squiggle-wrap{ position: relative; display:inline-block; color: var(--primary-dark); }
.squiggle{
  position:absolute; left:0; bottom:-14px; width:100%; height:20px;
  overflow: visible;
}
.squiggle path{
  fill:none;
  stroke: var(--lime);
  stroke-width: 7;
  stroke-linecap: round;
}

.hero-sub{
  font-size: 1.2rem;
  color: var(--ink-soft);
  max-width: 480px;
  margin: 0 0 34px;
}

.hero-actions{ display:flex; gap: 16px; flex-wrap: wrap; margin-bottom: 46px; }

.hero-stats{
  display:flex; gap: 40px; flex-wrap: wrap;
}
.hero-stats div{ display:flex; flex-direction: column; }
.hero-stats strong{ font-size: 1.7rem; font-weight: 800; }
.hero-stats span{ font-size: 0.85rem; color: var(--ink-soft); font-weight: 600; }

/* hero visual - floating report cards */
.hero-visual{
  position: relative;
  height: 420px;
}
.blob{
  position:absolute; inset: 10% 0 0 8%;
  width: 78%; height: 78%;
  background: var(--primary);
  border-radius: 62% 38% 55% 45% / 50% 45% 55% 50%;
  opacity: 0.9;
  z-index: 0;
}
.report-card{
  position:absolute;
  background: var(--surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow);
  padding: 16px 20px;
  display:flex; flex-direction: column; gap: 4px;
  z-index: 2;
  min-width: 168px;
}
.rc-label{ font-family:"Barlow Condensed"; font-weight:600; text-transform:uppercase; letter-spacing:0.06em; font-size:0.75rem; color: var(--ink-soft); }
.rc-grade{ font-size: 1.4rem; font-weight: 800; }
.rc-check{
  position:absolute; top:-12px; right:-12px;
  width: 34px; height: 34px; border-radius: 50%;
  background: var(--lime); color: var(--lime-ink);
  display:flex; align-items:center; justify-content:center;
  font-weight: 900; font-size: 1.1rem;
  box-shadow: var(--shadow);
}
.card-1{ top: 4%;  left: 4%;  transform: rotate(-7deg); }
.card-2{ top: 40%; right: 0%; transform: rotate(5deg); }
.card-3{ bottom: 4%; left: 16%; transform: rotate(-3deg); }

/* ---------------- Marquee ---------------- */
.marquee-strip{
  background: var(--ink);
  color: var(--lime);
  overflow: hidden;
  padding: 16px 0;
}
.marquee-track{
  display:flex;
  gap: 18px;
  white-space: nowrap;
  width: max-content;
  animation: scroll-left 26s linear infinite;
  font-family: "Barlow Condensed", sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.08em;
}
.marquee-track span{ opacity: 0.95; }
@keyframes scroll-left{
  from{ transform: translateX(0); }
  to{ transform: translateX(-50%); }
}

/* ---------------- How it works ---------------- */
.how{ padding: 100px 32px; }
.steps{
  display:grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  align-items: start;
  gap: 20px;
}
.step{ max-width: 300px; justify-self: center; text-align:center; }
.step-mark{
  display:inline-block;
  font-family:"Barlow Condensed";
  font-weight:700; letter-spacing:0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--primary-dark);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.step h3{ font-size: 1.35rem; font-weight: 800; margin: 0 0 10px; }
.step p{ color: var(--ink-soft); font-size: 0.98rem; margin:0; }
.step-line{
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--border) 0 8px, transparent 8px 16px);
  margin-top: 20px;
  align-self: flex-start;
}

/* ---------------- Subjects ---------------- */
.subjects{ padding: 40px 32px 110px; }
.subject-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.subject-card{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.subject-card:hover{
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: var(--primary);
}
.subject-glyph{
  display:inline-flex; align-items:center; justify-content:center;
  width: 52px; height: 52px;
  border-radius: 14px;
  background: var(--bg-alt);
  color: var(--primary-dark);
  font-weight: 800; font-size: 1.2rem;
  margin-bottom: 18px;
}
.subject-card h3{ font-size: 1.15rem; font-weight: 800; margin: 0 0 4px; }
.subject-card p{ font-size: 0.92rem; color: var(--ink-soft); margin:0; }

/* ---------------- Stats band ---------------- */
.stats-band{
  background: var(--ink);
  color: #fff;
  padding: 90px 32px;
}
.stats-inner{
  display:grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 50px;
  align-items:center;
}
.stat-hero .stat-num{
  font-size: clamp(3.2rem, 6vw, 5rem);
  color: var(--lime);
}
.stat-hero p{ font-size: 1.15rem; color: #C9D8CC; max-width: 380px; margin-top: 10px; }
.stat-row{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  border-left: 1px solid rgba(255,255,255,0.15);
  padding-left: 50px;
}
.stat-num{
  display:block;
  font-size: 2.4rem;
  font-weight: 900;
  letter-spacing: -0.02em;
}
.stat-row p{ font-size: 0.88rem; color: #C9D8CC; margin: 6px 0 0; font-weight: 600; }

/* ---------------- Tutors ---------------- */
.tutors{ padding: 110px 32px; }
.tutors-head{
  display:flex; justify-content:space-between; align-items:flex-end; margin-bottom: 36px;
}
.tutors-head .section-title{ margin-bottom: 0; }
.carousel-controls{ display:flex; gap: 10px; }
.carousel-controls button{
  width: 46px; height: 46px; border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 1.1rem; font-weight: 700;
  transition: background 0.15s ease, color 0.15s ease;
}
.carousel-controls button:hover{ background: var(--ink); color: var(--lime); }

.tutor-track{
  display:flex; gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 10px;
  scrollbar-width: none;
}
.tutor-track::-webkit-scrollbar{ display:none; }

.tutor-card{
  scroll-snap-align: start;
  flex: 0 0 250px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 26px 22px;
}
.avatar{
  width: 56px; height: 56px; border-radius: 50%;
  display:flex; align-items:center; justify-content:center;
  font-weight: 800; font-size: 1.1rem;
  background: var(--av-bg); color: var(--av-fg);
  margin-bottom: 18px;
}
.tutor-card h3{ font-size: 1.15rem; font-weight: 800; margin: 0 0 4px; }
.tutor-subject{ font-weight: 700; font-size: 0.95rem; margin: 0 0 4px; }
.tutor-cred{ font-size: 0.85rem; color: var(--ink-soft); margin: 0 0 14px; }
.tutor-rating{ font-weight: 800; color: var(--primary-dark); margin:0; }

/* ---------------- Testimonial ---------------- */
.testimonial{
  padding: 60px 32px 110px;
  text-align: center;
  max-width: 780px;
}
.quote-mark{ width: 40px; height: 30px; fill: var(--primary); margin-bottom: 20px; }
.testimonial-text{
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  font-weight: 700;
  line-height: 1.35;
  margin: 0 0 20px;
}
.testimonial-name{ color: var(--ink-soft); font-weight: 600; }

/* ---------------- Pricing ---------------- */
.pricing{ padding: 40px 32px 120px; }
.price-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}
.price-card{
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  display:flex; flex-direction:column;
  position: relative;
}
.price-card h3{ font-size: 1.2rem; font-weight: 800; margin:0 0 12px; }
.price{ font-size: 2.6rem; font-weight: 900; margin: 0 0 22px; }
.price span{ font-size: 1rem; font-weight: 600; color: var(--ink-soft); }
.price-card ul{ margin-bottom: 28px; flex-grow: 1; }
.price-card li{
  padding: 10px 0;
  border-top: 1px solid var(--border);
  font-size: 0.95rem;
  color: var(--ink-soft);
}
.price-card li:first-child{ border-top:none; }

.price-card.featured{
  background: var(--ink);
  color: #fff;
  border-color: var(--ink);
  transform: scale(1.03);
  box-shadow: var(--shadow);
}
.price-card.featured .price span,
.price-card.featured li{ color: #C9D8CC; }
.price-card.featured li{ border-top-color: rgba(255,255,255,0.12); }
.price-tag{
  position:absolute; top: -14px; left: 30px;
  background: var(--lime); color: var(--lime-ink);
  font-weight: 800; font-size: 0.78rem;
  text-transform: uppercase; letter-spacing: 0.06em;
  padding: 6px 14px; border-radius: 999px;
}

/* ---------------- CTA / Book form ---------------- */
.cta-band{
  background: var(--bg-alt);
  padding: 100px 32px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.cta-inner{
  display:grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 60px;
  align-items:center;
}
.cta-title{
  font-size: clamp(2.2rem, 4.4vw, 3.4rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.01em;
  margin:0;
}

.book-form{
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow);
  display:flex; flex-direction:column; gap: 18px;
}
.field{ display:flex; flex-direction:column; gap: 6px; }
.field label{ font-size: 0.85rem; font-weight: 700; color: var(--ink-soft); }
.field input, .field select{
  font-family: inherit;
  font-size: 1rem;
  padding: 13px 16px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--border);
  background: var(--bg);
  color: var(--ink);
}
.field input:focus, .field select:focus{
  outline: none;
  border-color: var(--primary);
}
.form-note{
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary-dark);
  min-height: 1.2em;
  margin: 0;
}

/* ---------------- Footer ---------------- */
.site-footer{ background: var(--ink); color: #C9D8CC; padding-top: 70px; }
.footer-inner{
  display:grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 50px;
}
.footer-brand .logo{ color: #fff; }
.footer-brand .logo .dot{ color: var(--lime); }
.footer-brand p{ margin-top: 12px; font-size: 0.95rem; }
.footer-col h4{ color: #fff; font-size: 0.95rem; margin: 0 0 16px; }
.footer-col a{ display:block; padding: 6px 0; font-size: 0.92rem; }
.footer-col a:hover{ color: var(--lime); }
.footer-bottom{
  border-top: 1px solid rgba(255,255,255,0.12);
  padding: 22px 32px;
  font-size: 0.85rem;
}

/* ---------------- Focus visibility ---------------- */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible{
  outline: 3px solid var(--primary);
  outline-offset: 2px;
}

/* ---------------- Reduced motion ---------------- */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  .marquee-track{ animation: none; }
  *{ transition: none !important; }
}

/* ---------------- Responsive ---------------- */
@media (max-width: 980px){
  .hero{ grid-template-columns: 1fr; padding-top: 50px; }
  .hero-visual{ height: 340px; order: -1; }
  .stats-inner{ grid-template-columns: 1fr; }
  .stat-row{ border-left:none; padding-left:0; border-top: 1px solid rgba(255,255,255,0.15); padding-top: 30px; }
  .steps{ grid-template-columns: 1fr; }
  .step-line{ width: 2px; height: 40px; margin: 0 auto; }
  .subject-grid{ grid-template-columns: repeat(2,1fr); }
  .price-grid{ grid-template-columns: 1fr; }
  .price-card.featured{ transform:none; }
  .cta-inner{ grid-template-columns: 1fr; }
  .footer-inner{ grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px){
  .main-nav{
    position:absolute; top: 100%; left:0; right:0;
    background: var(--bg);
    flex-direction: column;
    padding: 20px 32px;
    border-bottom: 1px solid var(--border);
    display:none;
    gap: 4px;
  }
  .main-nav.open{ display:flex; }
  .main-nav a{ padding: 12px 0; border-bottom: 1px solid var(--border); }
  .nav-toggle{ display:flex; }
  .header-cta .btn-small{ display:none; }
  .subject-grid{ grid-template-columns: 1fr 1fr; }
  .footer-inner{ grid-template-columns: 1fr; }
}