/* ============================================================
   Rohtak Public School — Student Register
   Design: a physical school ledger book, digitised.
   Cream ledger paper, maroon uniform colour, mustard-wheat
   accent (a nod to Haryana's fields), hairline rules instead
   of boxed cards, a wax-seal badge as the signature mark.
   ============================================================ */

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

:root{
  --paper:       #F4EEDD;
  --paper-2:     #ECE3CB;
  --ink:         #241B14;
  --ink-soft:    #5A4E3E;
  --maroon:      #7C1F2D;
  --maroon-dark: #5E1621;
  --mustard:     #B9791A;
  --sage:        #56624A;
  --line:        #D8C9A0;
  --white:       #FFFDF7;
  --danger:      #A1332A;

  --font-display: 'Fraunces', serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

*{ box-sizing: border-box; }

html{ scroll-behavior: smooth; }

body{
  margin:0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

/* subtle paper texture via layered gradients */
body{
  background-image:
    radial-gradient(circle at 1px 1px, rgba(36,27,20,0.035) 1px, transparent 0);
  background-size: 22px 22px;
}

a{ color: inherit; }

::selection{ background: var(--mustard); color: var(--white); }

:focus-visible{
  outline: 2px solid var(--maroon);
  outline-offset: 2px;
}

h1,h2,h3,h4{
  font-family: var(--font-display);
  color: var(--maroon-dark);
  margin: 0;
  font-weight: 600;
}

/* ---------- Seal badge (signature element) ---------- */
.seal{
  width: 56px; height: 56px;
  border-radius: 50%;
  border: 2px solid var(--maroon);
  display: flex; align-items:center; justify-content:center;
  position: relative;
  flex-shrink: 0;
  color: var(--maroon);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  background: var(--paper);
}
.seal::before{
  content:"";
  position:absolute; inset: 5px;
  border: 1px dashed var(--maroon);
  border-radius: 50%;
  opacity: .55;
}

/* ============================================================
   LOGIN PAGE
   ============================================================ */
.login-wrap{
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-card{
  width: 100%;
  max-width: 420px;
  background: var(--white);
  border: 1px solid var(--line);
  padding: 40px 36px 32px;
  position: relative;
}

.login-card::before{
  content:"";
  position:absolute; inset: 8px;
  border: 1px solid var(--line);
  pointer-events:none;
}

.login-head{
  display:flex; align-items:center; gap:14px;
  margin-bottom: 28px;
}

.login-head .school-name{
  font-family: var(--font-display);
  font-size: 1.35rem;
  line-height: 1.15;
  color: var(--maroon-dark);
}
.login-head .school-loc{
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: 2px;
}

.login-eyebrow{
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--mustard);
  margin-bottom: 6px;
  display:block;
}

.field{ margin-bottom: 18px; }
.field label{
  display:block;
  font-size: .8rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--ink-soft);
}
.field input{
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--line);
  background: var(--paper);
  font-family: var(--font-body);
  font-size: .95rem;
  color: var(--ink);
}
.field input:focus{
  border-color: var(--maroon);
  background: var(--white);
}

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: .9rem;
  padding: 12px 20px;
  border: 1px solid var(--maroon);
  background: var(--maroon);
  color: var(--white);
  cursor: pointer;
  transition: background .15s ease, color .15s ease, transform .05s ease;
  width: 100%;
}
.btn:hover{ background: var(--maroon-dark); border-color: var(--maroon-dark); }
.btn:active{ transform: translateY(1px); }
.btn.ghost{
  background: transparent; color: var(--maroon);
}
.btn.ghost:hover{ background: var(--maroon); color: var(--white); }
.btn.small{ padding: 8px 14px; font-size: .8rem; width: auto; }
.btn.danger{ border-color: var(--danger); background: var(--danger); }
.btn.danger:hover{ background: #7f241d; }

.form-msg{
  font-family: var(--font-mono);
  font-size: .78rem;
  margin-top: 14px;
  padding: 10px 12px;
  border-left: 3px solid var(--maroon);
  background: var(--paper-2);
  display:none;
}
.form-msg.show{ display:block; }
.form-msg.error{ border-color: var(--danger); color: var(--danger); }
.form-msg.ok{ border-color: var(--sage); color: var(--sage); }

.login-foot{
  margin-top: 22px;
  font-size: .75rem;
  color: var(--ink-soft);
  line-height: 1.5;
}

/* ============================================================
   APP SHELL (dashboard)
   ============================================================ */
.app{
  display:grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}

/* ---- Sidebar styled as ledger tab index ---- */
.sidebar{
  background: var(--maroon-dark);
  color: var(--paper);
  padding: 26px 0 20px;
  display:flex; flex-direction:column;
}

.sidebar-brand{
  display:flex; align-items:center; gap:12px;
  padding: 0 20px 22px;
  border-bottom: 1px solid rgba(244,238,221,0.18);
  margin-bottom: 18px;
}
.sidebar-brand .seal{ background: var(--maroon-dark); border-color: var(--mustard); color: var(--mustard); width:44px; height:44px; font-size:1rem;}
.sidebar-brand .seal::before{ border-color: var(--mustard); }
.sidebar-brand .name{
  font-family: var(--font-display);
  font-size: 1rem;
  line-height: 1.2;
}
.sidebar-brand .loc{
  font-family: var(--font-mono);
  font-size: .65rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  opacity: .7;
}

.nav-group{ padding: 0 12px; }
.nav-item{
  display:flex; align-items:center; gap:10px;
  padding: 11px 12px;
  font-size: .88rem;
  font-weight: 500;
  color: rgba(244,238,221,0.82);
  text-decoration:none;
  border-left: 3px solid transparent;
  cursor:pointer;
  transition: background .15s ease, border-color .15s ease;
}
.nav-item:hover{ background: rgba(244,238,221,0.06); }
.nav-item.active{
  color: var(--white);
  border-left-color: var(--mustard);
  background: rgba(244,238,221,0.08);
}
.nav-item .idx{
  font-family: var(--font-mono);
  font-size: .7rem;
  color: var(--mustard);
  width: 18px;
}

.sidebar-foot{
  margin-top: auto;
  padding: 16px 20px 0;
  border-top: 1px solid rgba(244,238,221,0.18);
}
.sidebar-foot .who{
  font-size: .78rem;
  color: rgba(244,238,221,0.75);
  margin-bottom: 10px;
  word-break: break-word;
}

/* ---- Main content ---- */
.main{
  padding: 32px 40px 60px;
  max-width: 1180px;
}

.page-head{
  display:flex; align-items:flex-end; justify-content:space-between;
  gap: 20px;
  margin-bottom: 26px;
  padding-bottom: 18px;
  border-bottom: 2px solid var(--ink);
}
.page-head .eyebrow{
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--mustard);
  display:block;
  margin-bottom: 4px;
}
.page-head h1{ font-size: 1.7rem; }

/* stat strip */
.stats{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  margin-bottom: 30px;
}
.stat{
  background: var(--white);
  padding: 18px 20px;
}
.stat .num{
  font-family: var(--font-display);
  font-size: 1.9rem;
  color: var(--maroon-dark);
  line-height: 1;
}
.stat .label{
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-top: 8px;
  display:block;
}

/* toolbar */
.toolbar{
  display:flex; align-items:center; justify-content:space-between;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.toolbar-filters{
  display:flex; gap:10px; flex-wrap:wrap;
}
.toolbar input[type="search"], .toolbar select{
  padding: 9px 12px;
  border: 1px solid var(--line);
  background: var(--white);
  font-family: var(--font-body);
  font-size: .85rem;
  color: var(--ink);
  min-width: 160px;
}

/* ---- Register table ---- */
.register{
  width: 100%;
  border-collapse: collapse;
  background: var(--white);
  font-size: .88rem;
}
.register thead th{
  text-align:left;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding: 10px 14px;
  border-bottom: 2px solid var(--ink);
}
.register tbody td{
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}
.register tbody tr:hover{ background: var(--paper-2); }
.register .col-idx{
  font-family: var(--font-mono);
  color: var(--mustard);
  font-weight:600;
  width: 42px;
}
.register .col-adm{
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--ink-soft);
}
.register .name-cell{ font-weight:600; }
.register .tag{
  display:inline-block;
  font-family: var(--font-mono);
  font-size: .72rem;
  padding: 2px 8px;
  border: 1px solid var(--sage);
  color: var(--sage);
}
.register .actions{ display:flex; gap:8px; justify-content:flex-end; }
.link-btn{
  background:none; border:none; cursor:pointer;
  font-family: var(--font-body); font-weight:600; font-size:.8rem;
  color: var(--maroon); padding: 4px 6px;
}
.link-btn:hover{ text-decoration: underline; }
.link-btn.danger{ color: var(--danger); }

.empty-row td{
  text-align:center;
  padding: 40px 20px;
  color: var(--ink-soft);
  font-style: italic;
}

/* ---- Modal ---- */
.modal-backdrop{
  position: fixed; inset:0;
  background: rgba(36,27,20,0.55);
  display:none;
  align-items:flex-start; justify-content:center;
  padding: 40px 20px;
  overflow-y:auto;
  z-index: 50;
}
.modal-backdrop.show{ display:flex; }
.modal{
  background: var(--white);
  width: 100%; max-width: 620px;
  padding: 30px 32px 26px;
  border: 1px solid var(--line);
  position: relative;
}
.modal-close{
  position:absolute; top:16px; right:16px;
  background:none; border:none; cursor:pointer;
  font-size: 1.3rem; color: var(--ink-soft); line-height:1;
}
.modal h2{ font-size: 1.3rem; margin-bottom: 18px; }
.grid-2{
  display:grid; grid-template-columns: 1fr 1fr; gap: 0 16px;
}

.badge-eyebrow{
  font-family: var(--font-mono);
  font-size: .7rem;
  color: var(--mustard);
  letter-spacing: .1em;
  text-transform: uppercase;
}

@media (max-width: 860px){
  .app{ grid-template-columns: 1fr; }
  .sidebar{
    flex-direction: row;
    align-items:center;
    padding: 14px 16px;
    overflow-x:auto;
  }
  .sidebar-brand{ border-bottom:none; margin-bottom:0; padding: 0 14px 0 0; border-right: 1px solid rgba(244,238,221,0.18);}
  .nav-group{ display:flex; padding:0 0 0 14px; }
  .nav-item{ border-left:none; border-bottom: 3px solid transparent; white-space:nowrap; }
  .nav-item.active{ border-bottom-color: var(--mustard); border-left-color:transparent; }
  .sidebar-foot{ display:none; }
  .main{ padding: 24px 18px 50px; }
  .stats{ grid-template-columns: 1fr 1fr; }
  .grid-2{ grid-template-columns: 1fr; }
  .register{ font-size: .8rem; }
}