/* ============================================================
   HarnessedMind — shared design system
   Concept: the calm structure of a well-kept maths notebook —
   a quiet graph-paper grid, and a clear, worked learning path.
   Brand palette: navy ink + signature cyan-to-blue gradient.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,500;0,9..144,600;1,9..144,500&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@500;600&display=swap');

:root{
  --bg: #FFFFFF;
  --bg-elevated: #F8FBFD;
  --ink: #213547;
  --ink-soft: #55697C;
  --grid-line: rgba(33,53,71,0.04);
  --accent: #00CCFF;
  --accent-2: #0B63A6;
  --accent-ink: #082430;
  --gradient: linear-gradient(135deg, var(--accent), var(--accent-2));
  --border: rgba(33,53,71,0.13);
  --shadow: 0 1px 2px rgba(33,53,71,0.05), 0 8px 24px rgba(33,53,71,0.05);

  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, Menlo, monospace;

  --max: 1080px;
  --measure: 640px;
  color-scheme: light;
}

:root[data-theme="dark"]{
  --bg: #0A0A0A;
  --bg-elevated: #131417;
  --ink: #E8F6FF;
  --ink-soft: #93AAB8;
  --grid-line: rgba(232,246,255,0.035);
  --accent: #00CCFF;
  --accent-2: #3E9CE0;
  --accent-ink: #04141A;
  --gradient: linear-gradient(135deg, var(--accent), var(--accent-2));
  --border: rgba(232,246,255,0.14);
  --shadow: 0 1px 2px rgba(0,0,0,0.3), 0 12px 32px rgba(0,0,0,0.35);
  color-scheme: dark;
}

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

html{ scroll-behavior: smooth; }

body{
  margin: 0;
  background:
    linear-gradient(var(--grid-line) 1px, transparent 1px) 0 0 / 100% 40px,
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px) 0 0 / 40px 100%,
    var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  transition: background-color .25s ease, color .25s ease;
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

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

a{ color: inherit; }

.wrap{
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid var(--border);
}

.site-header .wrap{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.brand{
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--ink);
}

.brand img{
  height: 80px;
  width: auto;
}

.logo-dark{ display: none; }
.logo-light{ display: block; }
:root[data-theme="dark"] .logo-light{ display: none; }
:root[data-theme="dark"] .logo-dark{ display: block; }

.header-actions{
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-toggle{
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--ink);
  display: grid;
  place-items: center;
  cursor: pointer;
  flex: none;
}
.theme-toggle svg{ width: 18px; height: 18px; }
.theme-toggle .icon-sun{ display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun{ display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon{ display: none; }

/* ---------- Buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: .95rem;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, opacity .15s ease;
}
.btn:hover{ transform: translateY(-1px); }
.btn:focus-visible{ outline: 2px solid var(--accent-2); outline-offset: 2px; }

.btn-primary{
  background: var(--gradient);
  color: var(--accent-ink);
  box-shadow: var(--shadow);
}
.btn-primary:hover{ opacity: .92; }

.btn-ghost{
  background: transparent;
  border-color: var(--border);
  color: var(--ink);
  padding: 11px 22px;
}

/* ---------- Eyebrow / labels ---------- */
.eyebrow{
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--accent-2);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}
.eyebrow::before{
  content: "";
  width: 16px;
  height: 1px;
  background: var(--accent-2);
}
:root[data-theme="dark"] .eyebrow{ color: var(--accent); }
:root[data-theme="dark"] .eyebrow::before{ background: var(--accent); }

/* ---------- Type ---------- */
h1,h2,h3{
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin: 0 0 18px;
}
h1{ font-size: clamp(2.2rem, 4.6vw, 3.4rem); }
h2{ font-size: clamp(1.5rem, 2.6vw, 2.05rem); }
h3{ font-size: 1.15rem; }

p{ margin: 0 0 18px; color: var(--ink-soft); }
p strong{ color: var(--ink); }

/* ---------- Sections ---------- */
section{ padding: 68px 0; }
section + section{ border-top: 1px solid var(--border); }

.section-head{ max-width: var(--measure); margin: 0 auto 40px; text-align: left; }
.section-head.center{ text-align: center; margin-left: auto; margin-right: auto; }

.prose{ max-width: var(--measure); }
.prose.center{ margin: 0 auto; text-align: center; }

/* ---------- Hero ---------- */
.hero{
  padding-top: 64px;
  padding-bottom: 64px;
}
.hero .wrap{
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 56px;
  align-items: center;
}
.hero p.lede{
  font-size: 1.1rem;
  max-width: 46ch;
}
.hero-actions{
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 8px;
}

/* signature: worksheet card — calm, straight, aligned */
.worksheet{
  position: relative;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 26px;
  box-shadow: var(--shadow);
}
.worksheet-head{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 24px;
}
.worksheet-title{
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.worksheet-badge{
  background: var(--gradient);
  color: var(--accent-ink);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: .74rem;
  padding: 5px 11px;
  border-radius: 6px;
  white-space: nowrap;
}
.path{
  display: flex;
  flex-direction: column;
  gap: 0;
}
.path-step{
  display: flex;
  align-items: flex-start;
  gap: 14px;
  position: relative;
  padding-bottom: 26px;
}
.path-step:last-child{ padding-bottom: 0; }
.path-step::before{
  content:"";
  position: absolute;
  left: 11px;
  top: 26px;
  bottom: 0;
  width: 0;
  border-left: 2px dashed var(--border);
}
.path-step:last-child::before{ display: none; }
.path-dot{
  width: 24px; height: 24px;
  border-radius: 50%;
  border: 2px solid var(--accent-2);
  background: var(--bg-elevated);
  flex: none;
  display: grid;
  place-items: center;
}
.path-step.done .path-dot{ background: var(--gradient); border-color: transparent; }
.path-step.done .path-dot::after{
  content: "";
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent-ink);
}
.path-label{ font-weight: 600; margin-bottom: 2px; }
.path-note{ font-size: .88rem; color: var(--ink-soft); margin: 0; }

/* ---------- Cards ---------- */
.cards{
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
}
.card{
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px 22px;
}
.card-icon{
  width: 38px; height: 38px;
  border-radius: 9px;
  background: color-mix(in srgb, var(--accent-2) 14%, transparent);
  color: var(--accent-2);
  display: grid;
  place-items: center;
  margin-bottom: 16px;
}
:root[data-theme="dark"] .card-icon{
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  color: var(--accent);
}
.card-icon svg{ width: 19px; height: 19px; }
.card h3{ margin-bottom: 8px; }
.card p{ margin-bottom: 0; font-size: .95rem; }

/* ---------- Chips ---------- */
.chips{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.chip{
  font-family: var(--font-mono);
  font-size: .85rem;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  border-radius: 999px;
  padding: 8px 16px;
  color: var(--ink);
}


/* ---------- Bio ---------- */
.bio{
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 24px;
  align-items: start;
}
.bio-avatar{
  width: 76px; height: 76px;
  border-radius: 50%;
  background: var(--gradient);
  color: var(--accent-ink);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.4rem;
  flex: none;
}
.credentials{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 4px;
}
 
.bio.center{
  grid-template-columns: 1fr;
  justify-items: center;
  text-align: center;
}
.bio.center .prose{ margin: 0 auto; }
.bio.center .credentials{ justify-content: center; }
.credential{
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--ink-soft);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 10px;
}
/* ---------- Location panel ---------- */
.location-panel{
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 30px 28px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
}
.suburb-list{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.suburb-list span{
  font-size: .85rem;
  padding: 5px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--ink-soft);
}
.pin{
  width: 54px; height: 54px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  color: var(--accent-2);
  display: grid;
  place-items: center;
  flex: none;
}
:root[data-theme="dark"] .pin{ color: var(--accent); }
.pin svg{ width: 24px; height: 24px; }

/* ---------- Teaser ---------- */
.teaser{
  background: color-mix(in srgb, var(--accent) 7%, var(--bg-elevated));
  border: 1px dashed var(--accent-2);
  border-radius: 14px;
  padding: 34px 30px;
}
:root[data-theme="dark"] .teaser{ border-color: var(--accent); }

/* ---------- CTA band ---------- */
.cta-band{
  text-align: center;
}
.cta-band h2{ margin-bottom: 12px; }
.cta-band .prose{ margin-bottom: 28px; }

/* ---------- Footer ---------- */
footer.site-footer{
  border-top: 1px solid var(--border);
  padding: 32px 0 40px;
}
footer.site-footer .wrap{
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-note{
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--ink-soft);
}
.footer-links{
  display: flex;
  gap: 18px;
  font-size: .85rem;
}
.footer-links a{ text-decoration: none; color: var(--ink-soft); }
.footer-links a:hover{ color: var(--ink); }

/* ---------- Contact form ---------- */
.contact-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}
.info-list{ display:flex; flex-direction:column; gap: 20px; margin-top: 8px; }
.info-item{ display:flex; gap: 14px; align-items:flex-start; }
.info-icon{
  width: 34px; height: 34px;
  border-radius: 8px;
  background: color-mix(in srgb, var(--accent-2) 14%, transparent);
  color: var(--accent-2);
  display: grid; place-items: center;
  flex: none;
}
:root[data-theme="dark"] .info-icon{
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  color: var(--accent);
}
.info-icon svg{ width: 17px; height: 17px; }
.info-item h3{ margin: 0 0 2px; font-size: 1rem; }
.info-item p{ margin: 0; font-size: .92rem; }

form{
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  box-shadow: var(--shadow);
}

.field{ display: flex; flex-direction: column; gap: 6px; }
.field label{
  font-family: var(--font-mono);
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--ink-soft);
}
input, textarea{
  font-family: var(--font-body);
  font-size: .98rem;
  padding: 13px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--ink);
}
input:focus, textarea:focus{
  outline: 2px solid var(--accent-2);
  outline-offset: 1px;
}
textarea{ min-height: 130px; resize: vertical; }

.form-note{
  font-size: .82rem;
  color: var(--ink-soft);
  margin: 0;
}

/* ---------- Responsive ---------- */
@media (max-width: 860px){
  .hero .wrap{ grid-template-columns: 1fr; }
    .brand img{ height: 56px; }
  .worksheet{ max-width: 420px; }
  .bio{ grid-template-columns: 1fr; }
  .location-panel{ grid-template-columns: 1fr; text-align: left; }
  .contact-grid{ grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 560px){
  section{ padding: 48px 0; }
  .site-header .wrap{ padding-top: 12px; padding-bottom: 12px; }
  .brand img{ height: 44px; }
  .hero{ padding-top: 36px; }
  .btn{ width: 100%; justify-content: center; }
  .hero-actions{ flex-direction: column; }
  footer.site-footer .wrap{ flex-direction: column; align-items: flex-start; }
}