/* Teachya - modern responsive styling + lightweight parallax */
:root{
  --bg0:#070A12;
  --bg1:#0B1230;
  --card: rgba(255,255,255,.06);
  --card2: rgba(255,255,255,.08);
  --stroke: rgba(255,255,255,.12);
  --text:#EAF0FF;
  --muted: rgba(234,240,255,.72);
  --muted2: rgba(234,240,255,.55);
  --brand:#7C5CFF;
  --brand2:#27D3FF;
  --good:#2FE39B;
  --warn:#FFCF5B;
  --danger:#FF5C7B;
  --shadow: 0 20px 60px rgba(0,0,0,.45);
  --shadow2: 0 12px 30px rgba(0,0,0,.35);
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-sm: 12px;
  --container: 1120px;
  --ring: 0 0 0 4px rgba(124,92,255,.22);
}

*{ box-sizing:border-box; }
html, body { height:100%; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  background:
    radial-gradient(1200px 800px at 20% 0%, rgba(124,92,255,.25), transparent 55%),
    radial-gradient(900px 600px at 90% 10%, rgba(39,211,255,.18), transparent 50%),
    linear-gradient(180deg, var(--bg0), var(--bg1) 65%, #070A12);
  color:var(--text);
  overflow-x:hidden;
}

img, svg{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
button, input, textarea, select{ font:inherit; }
code, pre { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace; }

.container{
  width: min(var(--container), calc(100% - 32px));
  margin:0 auto;
}

.topbar{
  position:sticky;
  top:0;
  z-index:50;
  backdrop-filter: blur(14px);
  background: rgba(9, 12, 26, .6);
  border-bottom: 1px solid rgba(255,255,255,.07);
}

.topbar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 14px 0;
  gap: 16px;
}

.brand{
  display:flex;
  align-items:center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: .2px;
}

.brand-mark{
  width: 34px;
  height: 34px;
  display:grid;
  place-items:center;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(124,92,255,.35), rgba(39,211,255,.18));
  border:1px solid rgba(255,255,255,.10);
  box-shadow: 0 10px 30px rgba(124,92,255,.18);
}

.brand-dot{
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, #fff, rgba(255,255,255,.1) 40%), linear-gradient(180deg, var(--brand), var(--brand2));
  box-shadow: 0 0 0 6px rgba(124,92,255,.15);
}

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

.nav-link{
  color: var(--muted);
  padding: 10px 10px;
  border-radius: 12px;
  border:1px solid transparent;
  transition: transform .15s ease, background .15s ease, border-color .15s ease, color .15s ease;
  font-weight: 650;
  font-size: 14px;
}

.nav-link:hover{
  color: var(--text);
  border-color: rgba(255,255,255,.10);
  background: rgba(255,255,255,.04);
  transform: translateY(-1px);
}

.nav-link.is-active{
  color: var(--text);
  background: rgba(124,92,255,.16);
  border-color: rgba(124,92,255,.30);
}

.nav-cta{
  padding: 10px 14px;
  border-radius: 14px;
  border:1px solid rgba(124,92,255,.35);
  background: linear-gradient(135deg, rgba(124,92,255,.25), rgba(39,211,255,.12));
  color: var(--text);
  font-weight: 800;
  box-shadow: 0 16px 40px rgba(124,92,255,.15);
}

.nav-toggle{
  display:none;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.05);
  color: var(--text);
}

.nav-toggle span{
  display:block;
  width: 18px;
  height: 2px;
  background: rgba(255,255,255,.85);
  margin: 4px auto;
  border-radius:999px;
}

/* Hero / sections */
main{ padding-bottom: 60px; }
.hero{
  position:relative;
  padding: 54px 0 30px;
}

.parallax-bg{
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  opacity:1;
}

.layer{
  position:absolute;
  inset:-20%;
  transform: translate3d(0,0,0);
  will-change: transform;
  background:
    radial-gradient(800px 500px at 20% 10%, rgba(124,92,255,.25), transparent 60%),
    radial-gradient(700px 420px at 80% 20%, rgba(39,211,255,.18), transparent 55%),
    radial-gradient(600px 360px at 50% 75%, rgba(47,227,155,.12), transparent 55%);
  filter: blur(0px);
}

.layer-1{ opacity:.45; }
.layer-2{ opacity:.35; filter: blur(12px); }
.layer-3{ opacity:.25; filter: blur(24px); }

.hero-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 28px;
  align-items:start;
}

.badge{
  display:inline-flex;
  align-items:center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.10);
  color: var(--muted);
  font-weight: 700;
  font-size: 13px;
  margin-bottom: 16px;
}

.badge-icon{
  width: 22px;
  height: 22px;
  display:grid;
  place-items:center;
  border-radius: 999px;
  background: rgba(124,92,255,.18);
  border:1px solid rgba(124,92,255,.30);
  color: rgba(255,255,255,.92);
}

.hero-copy h1{
  font-size: 44px;
  line-height: 1.05;
  letter-spacing: -0.8px;
  margin: 0 0 12px;
}

.lead{
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.55;
  max-width: 54ch;
}

.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap: 12px;
  margin: 18px 0 24px;
}

.hero-stats{
  display:flex;
  gap: 16px;
  flex-wrap:wrap;
}

.stat{
  flex: 1 1 160px;
  min-width: 160px;
  padding: 14px 14px;
  border-radius: 16px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
}

.stat-value{
  font-weight: 900;
  letter-spacing: -0.2px;
  color: rgba(255,255,255,.96);
}

.stat-label{
  margin-top: 6px;
  color: var(--muted2);
  font-size: 13px;
  font-weight: 650;
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding: 12px 16px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.04);
  color: var(--text);
  font-weight: 850;
  letter-spacing: .2px;
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
  user-select:none;
}

.btn:hover{ transform: translateY(-1px); border-color: rgba(255,255,255,.16); }
.btn:focus{ outline:none; box-shadow: var(--ring); }

.btn-primary{
  border-color: rgba(124,92,255,.38);
  background: linear-gradient(135deg, rgba(124,92,255,.38), rgba(39,211,255,.18));
  box-shadow: 0 20px 50px rgba(124,92,255,.18);
}

.btn-ghost{
  background: rgba(255,255,255,.03);
}

.w-100{ width:100%; }

/* Cards/sections */
.section{
  position:relative;
  z-index:1;
  padding: 34px 0;
}

.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:16px;
  margin-bottom: 18px;
}

.section-features .section-head{
  margin-bottom: 22px;
}

.section-head h2{
  margin:0;
  font-size: 26px;
  letter-spacing: -0.4px;
}
.muted{ color: var(--muted); }
.small{ font-size: 13px; }
.section-head p{ margin: 0; max-width: 62ch; }

.features-grid{
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 14px;
}

.feature{
  padding: 18px;
  border-radius: 18px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.09);
  box-shadow: 0 10px 26px rgba(0,0,0,.20);
}

.feature-icon{
  width: 38px; height: 38px;
  border-radius: 14px;
  display:grid;
  place-items:center;
  background: rgba(124,92,255,.18);
  border: 1px solid rgba(124,92,255,.28);
  font-weight: 900;
  margin-bottom: 12px;
}

.feature h3{ margin:0 0 8px; font-size: 16px; }
.feature p{ margin:0; color: var(--muted); line-height: 1.55; }

/* Home hero card */
.hero-card{
  position:relative;
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border: 1px solid rgba(255,255,255,.10);
  padding: 18px;
  box-shadow: var(--shadow);
  overflow:hidden;
}

.card-header h2{ margin:0 0 6px; font-size: 18px; }
.card-header p{ margin:0; color: var(--muted); font-size: 13px; }

.hero-card-glow{
  position:absolute;
  inset:-40%;
  background: radial-gradient(closest-side, rgba(124,92,255,.25), transparent 70%);
  transform: translate3d(0,0,0);
  pointer-events:none;
  filter: blur(20px);
}

/* Inputs */
.sr-only{
  position:absolute;
  width:1px; height:1px;
  padding:0; margin:-1px;
  overflow:hidden; clip:rect(0,0,0,0);
  white-space:nowrap; border:0;
}
.input-with-icon{
  position:relative;
  display:flex;
  align-items:center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
}

.input-icon{
  color: rgba(255,255,255,.75);
  font-weight: 900;
}

input[type="text"], textarea, select{
  width:100%;
  background: transparent;
  color: var(--text);
  border:none;
  outline:none;
}

input::placeholder, textarea::placeholder{ color: rgba(234,240,255,.42); }
textarea{ resize: vertical; min-height: 90px; }
textarea, select{ border-radius: 12px; padding: 0; }

.quick-search .hint{
  margin-top: 10px;
  color: var(--muted2);
  font-size: 13px;
}

.quick-row{ margin-top: 12px; }

.hint{ color: var(--muted2); font-size: 13px; }

/* Page layout */
.page{ padding-top: 22px; }
.page-head{
  padding: 16px 0 10px;
}
.page-head-grid{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap: 18px;
}
.page-head h1{
  margin:0;
  font-size: 26px;
  letter-spacing: -0.4px;
}
.page-head p{ margin: 8px 0 0; }

.page-search{ width: 460px; max-width: 100%; }

.results-toolbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 12px;
  margin: 18px 0 12px;
}

.chips{ display:flex; gap: 10px; flex-wrap:wrap; }
.chip{
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
  color: var(--muted);
  font-weight: 750;
  font-size: 13px;
}

.results-count{ font-weight: 900; color: rgba(255,255,255,.95); }
.mini{ display:flex; flex-direction:column; gap:6px; }
.cards-grid{
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 14px;
}

.card{
  padding: 16px;
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,.09);
  background: rgba(255,255,255,.04);
  box-shadow: 0 12px 30px rgba(0,0,0,.22);
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
  cursor: pointer;
}
.card:hover{ transform: translateY(-2px); border-color: rgba(124,92,255,.35); background: rgba(255,255,255,.055); }
.card-top{ display:flex; align-items:flex-start; gap: 12px; margin-bottom: 10px; }
.card-avatar{
  width: 42px; height: 42px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(124,92,255,.35), rgba(39,211,255,.15));
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: 0 18px 40px rgba(124,92,255,.15);
}
.card h3{ margin:0; font-size: 16px; }
.card .meta{ margin-top: 4px; color: var(--muted); font-size: 13px; line-height: 1.4; }
.card .tags{ display:flex; gap:8px; flex-wrap:wrap; margin-top: 10px; }
.tag{
  font-size: 12px;
  color: rgba(255,255,255,.86);
  padding: 6px 8px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
}

/* Teacher profile */
.breadcrumb{
  color: var(--muted2);
  font-weight: 700;
  font-size: 13px;
  margin-bottom: 14px;
}

.profile-head{
  padding: 14px 0 10px;
}

.profile-grid{
  display:grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.profile-head{
  padding-top: 10px;
}

.profile-meta{
  display:flex;
  flex-direction:column;
  gap: 10px;
}

.profile-head .profile-avatar{
  width: 84px; height: 84px;
}
.profile-head .profile-avatar .avatar-ring{
  width: 84px; height: 84px;
  border-radius: 28px;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.18), transparent 50%),
    linear-gradient(135deg, rgba(124,92,255,.35), rgba(39,211,255,.18));
  border:1px solid rgba(255,255,255,.12);
  padding: 10px;
  box-shadow: 0 20px 50px rgba(124,92,255,.18);
}
.avatar{
  width: 100%;
  height: 100%;
  border-radius: 24px;
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.10);
}

.profile-head{
  display:flex;
  gap: 18px;
  align-items:flex-start;
  flex-wrap:wrap;
}

.profile-actions{
  display:flex;
  gap: 10px;
  flex-wrap:wrap;
}

.panel{
  border-radius: 18px;
  border:1px solid rgba(255,255,255,.09);
  background: rgba(255,255,255,.04);
  padding: 16px;
}

.panel-title{
  margin: 0 0 12px;
  font-size: 16px;
  letter-spacing: -.2px;
}

.mini-sections{
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap: 12px;
  margin-top: 10px;
}

.mini-k{
  color: var(--muted2);
  font-size: 13px;
  font-weight: 750;
}

.mini-v{
  margin-top: 6px;
  font-size: 15px;
  font-weight: 900;
}

.availability-list{
  display:flex;
  gap: 10px;
  flex-wrap:wrap;
}

.avail-slot{
  padding: 10px 12px;
  border-radius: 14px;
  border:1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
  color: rgba(255,255,255,.92);
  font-weight: 800;
  font-size: 13px;
}

/* Request form */
.grid.two-col{
  grid-template-columns: 1.05fr .95fr;
  display:grid;
  gap: 14px;
}

.form{
  display:flex;
  flex-direction:column;
  gap: 12px;
}

.form-row{
  display:flex;
  flex-direction:column;
  gap: 8px;
}

.form-row label{
  font-weight: 850;
  color: rgba(255,255,255,.95);
}

.form-row input, .form-row textarea, .form-row select{
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.03);
}

.field-help{
  color: var(--muted2);
  font-size: 12px;
}

.form-actions{
  display:flex;
  gap: 10px;
  flex-wrap:wrap;
  align-items:center;
}

.notice{
  margin-top: 6px;
  padding: 12px;
  border-radius: 14px;
  border:1px solid rgba(47,227,155,.25);
  background: rgba(47,227,155,.10);
  color: rgba(234,240,255,.92);
  display:none;
}

/* Footer */
.footer{
  border-top: 1px solid rgba(255,255,255,.07);
  padding: 28px 0;
  background: rgba(0,0,0,.05);
}

.footer-inner{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap: 16px;
}

.footer-muted{
  color: var(--muted2);
  font-size: 13px;
}

.footer-links{
  display:flex;
  gap: 14px;
  flex-wrap:wrap;
}
.footer-links a{
  color: var(--muted);
  font-weight: 750;
  font-size: 13px;
  padding: 8px 10px;
  border-radius: 12px;
  border:1px solid transparent;
}
.footer-links a:hover{
  color: var(--text);
  border-color: rgba(255,255,255,.10);
  background: rgba(255,255,255,.04);
}

/* Parallax section */
.section-parallax{ padding-top: 20px; }
.split{
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 16px;
  align-items:center;
}
.checklist{
  margin: 14px 0 16px;
  padding-left: 18px;
  color: var(--muted);
}
.checklist li{ margin: 8px 0; }
.stack-actions{ display:flex; gap: 10px; flex-wrap:wrap; }

.parallax-card{
  border-radius: 26px;
  padding: 18px;
  border:1px solid rgba(255,255,255,.10);
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  box-shadow: var(--shadow2);
  position:relative;
  overflow:hidden;
  min-height: 240px;
}

.parallax-card::before{
  content:"";
  position:absolute;
  inset:-30%;
  background: radial-gradient(circle at 35% 25%, rgba(124,92,255,.35), transparent 55%),
    radial-gradient(circle at 80% 30%, rgba(39,211,255,.22), transparent 60%);
  filter: blur(18px);
  transform: translate3d(0,0,0);
  pointer-events:none;
}

.parallax-chip{
  display:inline-flex;
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.04);
  font-weight: 900;
  font-size: 12px;
  color: rgba(255,255,255,.92);
  position:relative;
  z-index:1;
}
.parallax-bigtext{
  position:relative;
  z-index:1;
  margin-top: 18px;
  font-size: 52px;
  letter-spacing: -1px;
  font-weight: 1000;
}
.parallax-sub{
  position:relative;
  z-index:1;
  margin-top: 10px;
  font-size: 16px;
  color: var(--muted);
}

/* Mobile responsiveness */
@media (max-width: 980px){
  .hero-grid{ grid-template-columns: 1fr; }
  .features-grid{ grid-template-columns: 1fr; }
  .cards-grid{ grid-template-columns: 1fr; }
  .split{ grid-template-columns: 1fr; }
  .page-head-grid{ flex-direction:column; align-items:stretch; }
  .page-search{ width: 100%; }
  .mini-sections{ grid-template-columns: 1fr; }
  .grid.two-col{ grid-template-columns: 1fr; }
}

@media (max-width: 720px){
  .nav{ display:none; }
  .nav-toggle{ display:inline-flex; }
  .topbar-inner{ padding: 12px 0; }
  .hero{ padding: 42px 0 20px; }
  .hero-copy h1{ font-size: 36px; }
  .parallax-bigtext{ font-size: 40px; }
}