/* ============================================================
   K.T. Institute — shared stylesheet
   Palette: deep teal + marigold ochre, cool paper ground
   Type: Fraunces (display) / Work Sans (body) / IBM Plex Mono (labels)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,500;9..144,600;9..144,700&family=Work+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  --paper: #F2F4F0;
  --paper-raised: #FBFCFA;
  --ink: #16242B;
  --muted: #55665D;
  --primary: #2C6E63;
  --primary-ink: #1D4A42;
  --primary-tint: #E4EEE9;
  --accent: #C77B2C;
  --accent-ink: #8F571C;
  --accent-tint: #F3E3CE;
  --line: #D8DED4;
  --line-strong: #BFC9BC;
  --shadow: 0 1px 2px rgba(22,36,43,0.06), 0 8px 24px rgba(22,36,43,0.06);
  --radius: 8px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Work Sans', ui-sans-serif, system-ui, sans-serif;
  font-size: 16.5px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

img{ max-width: 100%; display: block; }
a{ color: var(--primary-ink); }
a:focus-visible, button:focus-visible{ outline: 2px solid var(--accent); outline-offset: 2px; }

.wrap{
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 clamp(18px, 4vw, 40px);
}

h1, h2, h3{
  font-family: 'Fraunces', Georgia, serif;
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.01em;
  text-wrap: balance;
  margin: 0 0 14px;
  color: var(--ink);
}
h1{ font-size: clamp(2rem, 4.2vw, 3.1rem); }
h2{ font-size: clamp(1.5rem, 2.8vw, 2.1rem); }
h3{ font-size: 1.2rem; }
p{ margin: 0 0 14px; max-width: 62ch; }
p.lead{ font-size: 1.08rem; color: var(--muted); max-width: 58ch; }

.eyebrow{
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 12.5px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--primary-ink);
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
}
.eyebrow::before{ content:""; width:22px; height:1px; background: var(--accent); display:inline-block; }

/* ---------- Buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: 'Work Sans', sans-serif;
  font-weight: 600;
  font-size: 0.94rem;
  padding: 12px 22px;
  border-radius: 6px;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}
.btn:hover{ transform: translateY(-1px); }
.btn-primary{ background: var(--primary); color: #fff; box-shadow: var(--shadow); }
.btn-primary:hover{ background: var(--primary-ink); }
.btn-outline{ background: transparent; border-color: var(--line-strong); color: var(--ink); }
.btn-outline:hover{ border-color: var(--primary); color: var(--primary-ink); }
.btn-whatsapp{ background: var(--accent-ink); color: #fff; }
.btn-whatsapp:hover{ background: #6E4315; }
.btn-block{ width: 100%; justify-content: center; }

/* ---------- Header ---------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(242,244,240,0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.header-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 10px;
}
.brand{
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--ink);
}
.brand-mark{
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--paper-raised);
  border: 1.6px solid var(--primary);
  color: var(--primary-ink);
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.02em;
  display: flex; align-items: center; justify-content: center;
  flex: none;
  transition: transform 0.18s ease;
}
.brand:hover .brand-mark{ transform: scale(1.07); }
.brand-name{ font-family: 'Fraunces', serif; font-weight: 600; font-size: 1.08rem; }

.site-nav{
  display: flex;
  gap: 26px;
  font-size: 0.92rem;
  font-weight: 500;
}
.site-nav a{
  position: relative;
  text-decoration: none;
  color: var(--muted);
  padding: 6px 0;
  transition: color 0.15s ease;
}
.site-nav a::after{
  content: "";
  position: absolute;
  left: 0; right: 100%; bottom: 0;
  height: 2px;
  background: var(--accent);
  transition: right 0.2s ease;
}
.site-nav a:hover, .site-nav a.active{ color: var(--ink); }
.site-nav a:hover::after, .site-nav a.active::after{ right: 0; }

.header-cta{ flex: none; }
.nav-toggle{ display: none; }

@media (max-width: 820px){
  .site-nav{
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--paper-raised);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    gap: 2px;
    padding: 10px clamp(18px,4vw,40px) 16px;
    display: none;
  }
  .site-nav.open{ display: flex; }
  .site-nav a{ padding: 10px 0; border-bottom: 1px solid var(--line); }
  .header-cta{ display: none; }
  .nav-toggle{
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 34px; height: 34px;
    background: none;
    border: none;
    cursor: pointer;
  }
  .nav-toggle span{ width: 100%; height: 2px; background: var(--ink); display:block; }
}

/* ---------- Hero ---------- */
.hero{
  position: relative;
  overflow: hidden;
  padding: clamp(48px, 8vw, 96px) 0 clamp(40px, 6vw, 64px);
}
.hero::before, .hero::after{
  content: "";
  position: absolute;
  width: 380px; height: 380px;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.55;
  z-index: 0;
  pointer-events: none;
}
.hero::before{ background: var(--primary-tint); top: -140px; right: -90px; }
.hero::after{ background: var(--accent-tint); bottom: -160px; left: -140px; }
.hero > .wrap{ position: relative; z-index: 1; }

.hero-grid{
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
}
@media (max-width: 860px){ .hero-grid{ grid-template-columns: 1fr; } }
.hero h1{ max-width: 14ch; }
.hero-actions{ display: flex; gap: 12px; flex-wrap: wrap; margin-top: 22px; }

.badge-strip{
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 26px;
  padding-top: 22px;
  border-top: 2px dashed var(--line-strong);
}
.badge{
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-tint);
  color: var(--primary-ink);
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 11.5px;
  letter-spacing: 0.03em;
  padding: 6px 12px;
  border-radius: 999px;
}
.badge svg{ width: 13px; height: 13px; flex: none; }

/* ---------- Photo placeholder ---------- */
.photo{
  position: relative;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--primary-tint);
  aspect-ratio: var(--ratio, 4/3);
  overflow: hidden;
}
.photo svg{ width: 100%; height: 100%; display: block; }
.photo .cap{
  position: absolute;
  left: 0; right: 0; bottom: 0;
  width: 100%;
  background: rgba(22,36,43,0.78);
  color: #fff;
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 11.5px;
  padding: 8px 12px;
}

/* ---------- Sections ---------- */
section{ padding: clamp(40px, 6vw, 72px) 0; }
.section-alt{ background: var(--paper-raised); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.grid{ display: grid; gap: 20px; }
.grid-3{ grid-template-columns: repeat(3, 1fr); }
.grid-2{ grid-template-columns: repeat(2, 1fr); }
@media (max-width: 780px){ .grid-3, .grid-2{ grid-template-columns: 1fr; } }

.card{
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 22px;
  box-shadow: var(--shadow);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.card:hover{
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: 0 2px 4px rgba(22,36,43,0.08), 0 20px 36px rgba(22,36,43,0.12);
}
.card h3{ margin-bottom: 8px; }
.card p{ color: var(--muted); font-size: 0.95rem; margin-bottom: 0; }
.tag{
  display: inline-block;
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent-ink);
  background: var(--accent-tint);
  padding: 3px 9px;
  border-radius: 3px;
  margin-bottom: 10px;
}

.card-icon{
  width: 46px; height: 46px;
  border-radius: 10px;
  background: var(--primary-tint);
  color: var(--primary-ink);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  transition: transform 0.18s ease;
}
.card-icon svg{ width: 22px; height: 22px; }
.card-icon.accent{ background: var(--accent-tint); color: var(--accent-ink); }
.card:hover .card-icon{ transform: scale(1.08); }

.course-card ul{ margin: 10px 0 0; padding-left: 1.1em; font-size: 0.92rem; color: var(--muted); }
.course-card li{ margin-bottom: 4px; }

/* ---------- Steps / process ---------- */
.steps{
  counter-reset: step;
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 8px;
}
.steps::before{
  content: "";
  position: absolute;
  top: 22px;
  left: 12.5%;
  right: 12.5%;
  height: 2px;
  background: repeating-linear-gradient(90deg, var(--line-strong) 0 6px, transparent 6px 12px);
  z-index: 0;
}
.step{
  counter-increment: step;
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 10px;
}
.step::before{
  content: counter(step);
  font-family: 'Fraunces', serif;
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--primary-ink);
  background: var(--primary-tint);
  border: 3px solid var(--paper);
  width: 44px; height: 44px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  flex: none;
  margin-bottom: 16px;
}
.step h3{ margin: 0 0 6px; font-size: 0.98rem; }
.step p{ font-size: 0.88rem; color: var(--muted); max-width: 24ch; margin: 0; }

@media (max-width: 780px){
  .steps{ grid-template-columns: 1fr; gap: 0; }
  .steps::before{
    top: 42px; bottom: 42px; left: 22px; right: auto;
    width: 2px; height: auto;
    background: repeating-linear-gradient(180deg, var(--line-strong) 0 6px, transparent 6px 12px);
  }
  .step{
    flex-direction: row;
    align-items: flex-start;
    text-align: left;
    padding: 20px 0;
    gap: 16px;
  }
  .step::before{ margin-bottom: 0; }
  .step h3{ font-size: 1.02rem; }
  .step p{ max-width: none; }
}

/* ---------- Course table ---------- */
.table-wrap{
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  margin: 22px 0 4px;
}
table{ border-collapse: collapse; width: 100%; min-width: 460px; font-size: 0.92rem; }
th, td{ text-align: left; padding: 11px 16px; border-bottom: 1px solid var(--line); }
thead th{
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  background: var(--paper-raised);
  font-weight: 500;
}
tbody tr:last-child td{ border-bottom: none; }
tbody tr:hover{ background: var(--paper-raised); }
td.qual, td.dur{ font-family: 'IBM Plex Mono', ui-monospace, monospace; font-size: 0.85rem; color: var(--muted); font-variant-numeric: tabular-nums; }

/* ---------- Info list (contact) ---------- */
.info-list{ list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 16px; }
.info-list li{ display: flex; gap: 14px; }
.info-list .ico{
  width: 38px; height: 38px; flex: none;
  border-radius: 50%;
  background: var(--primary-tint);
  color: var(--primary-ink);
  display: flex; align-items: center; justify-content: center;
}
.info-list .ico svg{ width: 18px; height: 18px; }
.info-list strong{ display: block; font-size: 0.85rem; color: var(--muted); font-weight: 500; }
.info-list span.val{ font-size: 1rem; }

.map-frame{
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}
.map-frame iframe{ width: 100%; height: 340px; border: 0; display: block; }

/* ---------- Callout ---------- */
.callout{
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--accent);
  background: var(--accent-tint);
  border-radius: 4px;
  padding: 16px 18px;
  margin: 0 0 18px;
}
.callout p{ margin: 0; color: var(--ink); }

/* ---------- Footer ---------- */
.site-footer{ border-top: 1px solid var(--line); background: var(--paper-raised); padding-top: 44px; }
.footer-grid{
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 32px;
}
@media (max-width: 700px){ .footer-grid{ grid-template-columns: 1fr; gap: 24px; } }
.footer-grid h4{
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 0 0 10px;
}
.footer-grid p{ font-size: 0.92rem; color: var(--muted); margin-bottom: 6px; }
.footer-brand{ margin-bottom: 10px; }
.footer-bottom{
  border-top: 1px solid var(--line);
  padding: 16px 10px;
  font-size: 0.82rem;
  color: var(--muted);
  font-family: 'IBM Plex Mono', ui-monospace, monospace;
}

.whatsapp-float{
  position: fixed;
  right: 20px; bottom: 20px;
  width: 54px; height: 54px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  text-decoration: none;
  box-shadow: 0 6px 18px rgba(199,123,44,0.4);
  z-index: 50;
  transition: transform 0.18s ease, background 0.18s ease;
}
.whatsapp-float svg{ width: 24px; height: 24px; }
.whatsapp-float:hover{ background: var(--accent-ink); transform: scale(1.06); }

.btn svg{ width: 17px; height: 17px; flex: none; }
.btn-outline .arrow{ transition: transform 0.15s ease; display: inline-block; }
.btn-outline:hover .arrow{ transform: translateX(3px); }