/* ===========================================================
   NB Institute of Education — Design Tokens
   Direction: "Chalkboard & Report Card" — a coaching institute
   that feels earned, not templated. Chalkboard green + chalk
   white + brass gold seal, slab serif headings, mono ledger
   numbers for fees.
   =========================================================== */

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

:root{
  --board-green: #1B3B36;
  --board-green-dark: #122A26;
  --chalk: #F5F3E7;
  --chalk-dim: #D9D6C6;
  --brass: #C9A227;
  --brass-bright: #E4C452;
  --stamp-red: #B8433A;
  --ink: #17201E;
  --line: rgba(245,243,231,0.18);
  --radius: 6px;
}

*{ box-sizing: border-box; }

html,body{
  margin:0; padding:0;
  background: var(--board-green);
  color: var(--chalk);
  font-family: 'Work Sans', sans-serif;
  -webkit-font-smoothing: antialiased;
}

body{
  background-image:
    repeating-linear-gradient(0deg, transparent 0 39px, rgba(245,243,231,0.035) 39px 40px);
}

h1,h2,h3{
  font-family: 'Fraunces', serif;
  font-weight: 700;
  margin: 0;
  letter-spacing: -0.01em;
}

.mono{ font-family: 'IBM Plex Mono', monospace; }

a{ color: inherit; }

.wrap{
  max-width: 880px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header / Seal ---------- */
.topbar{
  display:flex; align-items:center; justify-content:space-between;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}
.brand{
  display:flex; align-items:center; gap:12px;
  font-family:'Fraunces', serif; font-weight:600; font-size:1.05rem;
  text-decoration:none; color: var(--chalk);
}
.seal{
  width:40px; height:40px; border-radius:50%;
  border:2px solid var(--brass);
  display:flex; align-items:center; justify-content:center;
  font-family:'Fraunces', serif; font-weight:700; font-size:0.85rem;
  color: var(--brass-bright);
  flex-shrink:0;
}
.navlink{
  font-size:0.9rem; text-decoration:none; color: var(--chalk-dim);
  border-bottom:1px solid transparent;
  transition: border-color .15s ease, color .15s ease;
}
.navlink:hover{ color: var(--chalk); border-color: var(--brass); }

/* ---------- Hero ---------- */
.hero{
  padding: 64px 0 48px;
  text-align:center;
  position:relative;
}
.hero .stamp{
  width:132px; height:132px;
  margin: 0 auto 28px;
  border-radius:50%;
  border: 3px solid var(--brass);
  display:flex; align-items:center; justify-content:center;
  transform: rotate(-6deg);
  position:relative;
}
.hero .stamp::before{
  content:'';
  position:absolute; inset:8px;
  border:1px dashed var(--brass);
  border-radius:50%;
}
.hero .stamp span{
  font-family:'Fraunces', serif;
  font-weight:700;
  font-size:1.9rem;
  color: var(--brass-bright);
}
.hero h1{
  font-size: clamp(2.1rem, 5vw, 3.1rem);
  line-height:1.08;
}
.hero .eyebrow{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.72rem;
  letter-spacing:0.16em;
  text-transform:uppercase;
  color: var(--brass-bright);
  margin-bottom:14px;
  display:inline-block;
}
.hero p.lede{
  max-width:520px; margin: 18px auto 0;
  color: var(--chalk-dim);
  font-size:1.02rem; line-height:1.6;
}

/* ---------- Section labels ---------- */
.section{ padding: 44px 0; border-top: 1px solid var(--line); }
.section-head{
  display:flex; align-items:baseline; gap:14px; margin-bottom:26px;
}
.section-head .num{
  font-family:'IBM Plex Mono', monospace;
  color: var(--brass);
  font-size:0.85rem;
}
.section-head h2{ font-size:1.5rem; }

/* ---------- Ledger / fee table (report-card style) ---------- */
.ledger{
  width:100%;
  border-collapse: collapse;
}
.ledger thead th{
  text-align:left;
  font-family:'IBM Plex Mono', monospace;
  font-size:0.7rem;
  letter-spacing:0.1em;
  text-transform:uppercase;
  color: var(--chalk-dim);
  padding: 0 0 10px;
  border-bottom: 1px solid var(--line);
}
.ledger tbody td{
  padding: 14px 0;
  border-bottom: 1px dashed var(--line);
  font-size:0.98rem;
}
.ledger tbody tr:last-child td{ border-bottom:none; }
.ledger td.amount{
  font-family:'IBM Plex Mono', monospace;
  color: var(--brass-bright);
  text-align:right;
  font-size:1.05rem;
}
.ledger td.tag{
  font-family:'IBM Plex Mono', monospace;
  font-size:0.72rem;
  color: var(--chalk-dim);
}
.ledger tr.highlight td{ color: var(--stamp-red); }
.ledger tr.highlight td.amount{ color: var(--stamp-red); }

.cta-row{
  text-align:right;
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding: 12px 22px;
  border-radius: var(--radius);
  border: none;
  font-family:'Work Sans', sans-serif;
  font-weight:600;
  font-size:0.92rem;
  cursor:pointer;
  text-decoration:none;
  transition: transform .12s ease, box-shadow .12s ease;
}
.btn-brass{
  background: var(--brass-bright);
  color: var(--board-green-dark);
}
.btn-brass:hover{ transform: translateY(-1px); box-shadow: 0 6px 18px rgba(228,196,82,0.25); }
.btn-outline{
  background:transparent;
  border:1px solid var(--line);
  color: var(--chalk);
}
.btn-outline:hover{ border-color: var(--brass); color: var(--brass-bright); }
.btn:disabled{ opacity:0.5; cursor:not-allowed; transform:none; }
.btn-block{ width:100%; justify-content:center; }

/* ---------- Forms ---------- */
.field{ margin-bottom:18px; }
.field label{
  display:block;
  font-family:'IBM Plex Mono', monospace;
  font-size:0.72rem;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color: var(--chalk-dim);
  margin-bottom:8px;
}
.field input, .field select{
  width:100%;
  padding: 12px 14px;
  background: rgba(245,243,231,0.05);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--chalk);
  font-family:'Work Sans', sans-serif;
  font-size:0.95rem;
}
.field input:focus, .field select:focus{
  outline: 2px solid var(--brass);
  outline-offset: 1px;
  border-color: var(--brass);
}
.field select option{ background: var(--board-green-dark); color: var(--chalk); }

.card{
  background: rgba(245,243,231,0.04);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 28px;
}

.fee-preview{
  display:flex; align-items:center; justify-content:space-between;
  padding: 16px 18px;
  background: rgba(201,162,39,0.08);
  border: 1px dashed var(--brass);
  border-radius: var(--radius);
  margin: 22px 0;
}
.fee-preview .label{ font-size:0.85rem; color: var(--chalk-dim); }
.fee-preview .amount{
  font-family:'IBM Plex Mono', monospace;
  font-size:1.4rem;
  color: var(--brass-bright);
}

.msg{
  padding: 12px 14px;
  border-radius: var(--radius);
  font-size:0.88rem;
  margin-bottom:16px;
}
.msg-error{ background: rgba(184,67,58,0.12); border:1px solid var(--stamp-red); color:#F0B4AE; }
.msg-success{ background: rgba(201,162,39,0.12); border:1px solid var(--brass); color: var(--brass-bright); }

/* ---------- Footer ---------- */
footer{
  padding: 30px 0 60px;
  text-align:center;
  color: var(--chalk-dim);
  font-size:0.8rem;
  border-top: 1px solid var(--line);
  margin-top:20px;
}

/* ---------- Admin table ---------- */
.data-table{
  width:100%;
  border-collapse: collapse;
  font-size:0.86rem;
}
.data-table th{
  text-align:left;
  font-family:'IBM Plex Mono', monospace;
  font-size:0.68rem;
  letter-spacing:0.08em;
  text-transform:uppercase;
  color: var(--chalk-dim);
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  position: sticky; top:0; background: var(--board-green);
}
.data-table td{
  padding: 10px 12px;
  border-bottom: 1px dashed var(--line);
}
.status-pill{
  display:inline-block;
  padding: 3px 9px;
  border-radius: 100px;
  font-family:'IBM Plex Mono', monospace;
  font-size:0.68rem;
  text-transform:uppercase;
}
.status-paid{ background: rgba(201,162,39,0.18); color: var(--brass-bright); }
.status-reported{ background: rgba(180,140,220,0.18); color: #c9a8f0; }
.status-visit{ background: rgba(245,243,231,0.08); color: var(--chalk-dim); }

.stat-grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(140px,1fr));
  gap:14px;
  margin-bottom:28px;
}
.stat{
  background: rgba(245,243,231,0.04);
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
}
.stat .n{ font-family:'IBM Plex Mono', monospace; font-size:1.6rem; color:var(--brass-bright); }
.stat .l{ font-size:0.75rem; color: var(--chalk-dim); margin-top:4px; }

.table-scroll{ overflow-x:auto; border:1px solid var(--line); border-radius:8px; }

@media (max-width: 600px){
  .wrap{ padding:0 16px; }
  .hero{ padding: 44px 0 32px; }
  .fee-preview{ flex-direction:column; align-items:flex-start; gap:8px; }
}