/* =========================================================
   NAVCHETNA EDUCATIONAL SOCIETY — design system
   Palette: indigo ink + khadi paper + marigold + margin-red
   Type: Fraunces (display) / Public Sans (body) / IBM Plex Mono (labels)
   Signature: the school-exercise-book margin rule, used as a
   structural device throughout (headers, cards, quotes, nav).
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,440;0,9..144,600;1,9..144,440&family=Public+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  --paper:      #F2EEE2;
  --paper-dim:  #E9E3D2;
  --ink:        #1B2340;
  --ink-soft:   #3A4266;
  --indigo:     #33448C;
  --indigo-deep:#232F63;
  --marigold:   #E2A63B;
  --marigold-deep: #B8811F;
  --margin-red: #A63A2F;
  --leaf:       #4C6650;
  --line:       rgba(27,35,64,0.14);
  --shadow:     0 18px 40px rgba(27,35,64,0.10);

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

  --margin-gutter: 34px;


*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16.5px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important;}
}

/* ---------- type scale ---------- */
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:600;
  color:var(--ink);
  margin:0 0 0.4em;
  letter-spacing:-0.01em;
}
h1{font-size:clamp(2.4rem,4.6vw,4.2rem); font-weight:440; line-height:1.02;}
h2{font-size:clamp(1.9rem,3vw,2.8rem); line-height:1.08;}
h3{font-size:1.35rem; line-height:1.25;}
p{margin:0 0 1em;}

.eyebrow{
  font-family:var(--font-mono);
  font-size:0.74rem;
  letter-spacing:0.14em;
  text-transform:uppercase;
  color:var(--margin-red);
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:22px;height:1px;
  background:var(--margin-red);
  display:inline-block;
}

.lede{font-size:1.15rem; color:var(--ink-soft); max-width:58ch;}

/* ---------- layout shell ---------- */
.wrap{max-width:1180px; margin:0 auto; padding:0 28px;}
section{padding:88px 0;}
.section-tight{padding:56px 0;}
.divider{height:1px; background:var(--line); border:0; margin:0;}

/* ---------- signature: notebook margin rule ---------- */
.margin-block{
  position:relative;
  padding-left: calc(var(--margin-gutter) + 18px);
  border-left:2px solid var(--margin-red);
}
.margin-block::before{
  content:attr(data-margin-label);
  position:absolute;
  left:-3px; top:-26px;
  font-family:var(--font-mono);
  font-size:0.68rem;
  letter-spacing:0.1em;
  color:var(--margin-red);
  text-transform:uppercase;
  transform:translateX(0);
  writing-mode:horizontal-tb;
}

/* ruled-paper texture used behind select sections */
.ruled{
  background-image: repeating-linear-gradient(
      to bottom,
      transparent, transparent 37px,
      var(--line) 37px, var(--line) 38px
    );
}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(242,238,226,0.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  max-width:1180px; margin:0 auto; padding:18px 28px;
  display:flex; align-items:center; justify-content:space-between; gap:24px;
}
.brand{
  display:flex; align-items:center; gap:12px;
  font-family:var(--font-display); font-weight:600; font-size:1.28rem;
  color:var(--ink);
}
.brand .mark{
  width:38px;height:38px; border-radius:3px;
  background:var(--indigo);
  color:var(--paper);
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-mono); font-size:0.85rem; font-weight:500;
  transform:rotate(-3deg);
}
.brand .full{display:flex; flex-direction:column; line-height:1.15;}
.brand .full small{font-family:var(--font-mono); font-size:0.6rem; letter-spacing:0.12em; color:var(--ink-soft); text-transform:uppercase; font-weight:500;}

.nav-links{display:flex; gap:2px; align-items:center;}
.nav-links a{
  font-family:var(--font-mono);
  font-size:0.78rem;
  letter-spacing:0.04em;
  padding:9px 14px;
  border-radius:3px;
  color:var(--ink-soft);
  transition:color .15s ease, background .15s ease;
}
.nav-links a:hover, .nav-links a:focus-visible{color:var(--indigo-deep); background:var(--paper-dim);}
.nav-links a.active{color:var(--margin-red);}
.nav-cta{
  font-family:var(--font-mono); font-size:0.78rem; letter-spacing:0.03em;
  background:var(--ink); color:var(--paper) !important;
  padding:10px 18px; border-radius:3px; white-space:nowrap;
}
.nav-cta:hover{background:var(--indigo-deep);}

.nav-toggle{display:none; background:none; border:0; cursor:pointer; padding:8px;}
.nav-toggle span{display:block; width:22px; height:2px; background:var(--ink); margin:5px 0;}

@media (max-width: 880px){
  .nav-links{
    position:fixed; inset:66px 0 0 0; background:var(--paper);
    flex-direction:column; align-items:stretch; padding:20px 28px; gap:4px;
    transform:translateY(-110%); transition:transform .25s ease; z-index:40;
    border-top:1px solid var(--line);
  }
  .nav-links.open{transform:translateY(0);}
  .nav-links a{padding:14px 6px; font-size:0.95rem; border-bottom:1px solid var(--line);}
  .nav-toggle{display:block;}
  .nav-cta{margin-top:10px; text-align:center;}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--font-mono); font-size:0.82rem; letter-spacing:0.03em;
  padding:13px 22px; border-radius:3px;
  border:1px solid var(--ink);
  cursor:pointer;
}
.btn-solid{background:var(--ink); color:var(--paper); border-color:var(--ink);}
.btn-solid:hover{background:var(--indigo-deep); border-color:var(--indigo-deep);}
.btn-ghost{background:transparent; color:var(--ink); border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink); color:var(--paper);}
.btn-marigold{background:var(--marigold); color:var(--ink); border-color:var(--marigold);}
.btn-marigold:hover{background:var(--marigold-deep); border-color:var(--marigold-deep);}
.btn-row{display:flex; gap:14px; flex-wrap:wrap;}
.btn svg{width:14px;height:14px;}

/* ---------- hero slider ---------- */
.hero{position:relative; overflow:hidden; background:var(--ink);}
.slide{
  display:none; position:relative;
  min-height:min(78vh,640px);
  display:flex; align-items:flex-end;
  padding:64px 0 76px;
  background:linear-gradient(160deg, var(--indigo-deep) 0%, var(--ink) 62%);
}
.slide.active{display:flex;}
.slide::after{
  content:"";
  position:absolute; inset:0;
  background-image: repeating-linear-gradient(115deg, rgba(226,166,59,0.05) 0 2px, transparent 2px 64px);
  pointer-events:none;
}
.slide-inner{position:relative; z-index:2; max-width:760px;}
.slide .eyebrow{color:var(--marigold);}
.slide .eyebrow::before{background:var(--marigold);}
.slide h1{color:var(--paper); max-width:14ch;}
.slide p{color:rgba(242,238,226,0.82); font-size:1.15rem; max-width:52ch;}
.slide-num{
  position:absolute; right:28px; bottom:28px; z-index:2;
  font-family:var(--font-mono); color:rgba(242,238,226,0.5); font-size:0.8rem;
}
.slide-dots{
  position:absolute; left:28px; bottom:28px; z-index:2;
  display:flex; gap:8px;
}
.slide-dots button{
  width:26px; height:3px; background:rgba(242,238,226,0.32); border:0; cursor:pointer; padding:0;
}
.slide-dots button.active{background:var(--marigold);}

/* ---------- cards ---------- */
.grid{display:grid; gap:26px;}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
@media (max-width:920px){
  .grid-3, .grid-4{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:620px){
  .grid-2, .grid-3, .grid-4{grid-template-columns:1fr;}
}

.card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:4px;
  padding:30px 26px;
  box-shadow:var(--shadow);
}
.card .num{
  font-family:var(--font-mono); font-size:0.75rem; color:var(--margin-red);
  letter-spacing:0.08em; margin-bottom:14px; display:block;
}

.tag{
  font-family:var(--font-mono); font-size:0.68rem; letter-spacing:0.08em;
  text-transform:uppercase; color:var(--indigo-deep);
  background:rgba(51,68,140,0.08);
  padding:5px 10px; border-radius:20px; display:inline-block;
}

/* ---------- stats ---------- */
.stats-band{background:var(--ink); color:var(--paper);}
.stats-band h2{color:var(--paper);}
.stats-band .lede{color:rgba(242,238,226,0.72);}
.stat{padding:20px 0; border-top:1px solid rgba(242,238,226,0.18);}
.stat .figure{font-family:var(--font-display); font-size:2.6rem; color:var(--marigold); font-weight:440;}
.stat .label{font-family:var(--font-mono); font-size:0.76rem; letter-spacing:0.06em; text-transform:uppercase; color:rgba(242,238,226,0.68);}

/* ---------- values list ---------- */
.value-list{display:grid; grid-template-columns:repeat(2,1fr); gap:0;}
.value-list li{
  padding:18px 0; border-bottom:1px solid var(--line);
  display:flex; align-items:baseline; gap:14px;
  font-family:var(--font-body); font-weight:600; font-size:1.02rem;
}
.value-list li span.i{font-family:var(--font-mono); color:var(--margin-red); font-size:0.78rem;}
@media (max-width:620px){.value-list{grid-template-columns:1fr;}}

/* ---------- quote / pull ---------- */
.pull-quote{
  font-family:var(--font-display); font-style:italic; font-weight:440;
  font-size:clamp(1.4rem,2.4vw,2rem); color:var(--indigo-deep);
  max-width:52ch; line-height:1.35;
}

/* ---------- footer ---------- */
.site-footer{background:var(--ink); color:rgba(242,238,226,0.78); padding:64px 0 26px;}
.site-footer h4{color:var(--paper); font-family:var(--font-mono); font-size:0.78rem; letter-spacing:0.08em; text-transform:uppercase; margin-bottom:16px; font-weight:500;}
.site-footer a{color:rgba(242,238,226,0.72);}
.site-footer a:hover{color:var(--marigold);}
.footer-grid{display:grid; grid-template-columns:1.6fr 1fr 1fr 1fr; gap:36px;}
@media (max-width:820px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr;}}
.footer-grid li{margin-bottom:9px; font-size:0.92rem;}
.footer-bottom{
  margin-top:52px; padding-top:22px; border-top:1px solid rgba(242,238,226,0.14);
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;
  font-family:var(--font-mono); font-size:0.72rem; color:rgba(242,238,226,0.5);
}

/* ---------- page hero (inner pages) ---------- */
.page-hero{
  background:var(--ink); color:var(--paper);
  padding:70px 0 60px;
  position:relative; overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute; inset:0;
  background-image: repeating-linear-gradient(115deg, rgba(226,166,59,0.05) 0 2px, transparent 2px 64px);
}
.page-hero .wrap{position:relative; z-index:2;}
.page-hero h1{color:var(--paper); max-width:22ch;}
.page-hero .lede{color:rgba(242,238,226,0.75);}
.crumb{font-family:var(--font-mono); font-size:0.72rem; color:var(--marigold); letter-spacing:0.08em; text-transform:uppercase; margin-bottom:18px; display:block;}

/* ---------- form ---------- */
.form-field{margin-bottom:20px;}
.form-field label{
  display:block; font-family:var(--font-mono); font-size:0.72rem;
  letter-spacing:0.06em; text-transform:uppercase; color:var(--ink-soft); margin-bottom:8px;
}
.form-field input, .form-field select, .form-field textarea{
  width:100%; padding:13px 14px; border:1px solid var(--line);
  background:#fff; border-radius:3px; font-family:var(--font-body); font-size:0.95rem; color:var(--ink);
}
.form-field textarea{min-height:130px; resize:vertical;}
.form-field input:focus, .form-field textarea:focus, .form-field select:focus{
  outline:2px solid var(--indigo); outline-offset:1px;
}

/* ---------- misc utility ---------- */
.muted{color:var(--ink-soft);}
.center{text-align:center; margin-left:auto; margin-right:auto;}
.mt-0{margin-top:0;}
.two-col{display:grid; grid-template-columns:1.1fr 0.9fr; gap:56px; align-items:start;}
@media (max-width:880px){.two-col{grid-template-columns:1fr;}}
.section-head{max-width:640px; margin-bottom:48px;}
.img-box{
  background:var(--paper-dim); border:1px solid var(--line); border-radius:4px;
  aspect-ratio: 4/3; display:flex; align-items:center; justify-content:center;
  font-family:var(--font-mono); font-size:0.7rem; color:var(--ink-soft); letter-spacing:0.06em; text-transform:uppercase;
  overflow:hidden;
}
.img-box img{width:100%;height:100%;object-fit:cover;}

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



.hero{
    position:relative;
    height:100vh;
    overflow:hidden;
}

.slide{
    position:absolute;
    inset:0;
    display:flex;
    align-items:center;
    background-size:cover;
    background-position:center;
    opacity:0;
    transition:.8s;
}

.slide.active{
    opacity:1;
    z-index:2;
}

.overlay{
    position:absolute;
    inset:0;
    background:rgba(0,0,0,.45);
}

.slide-inner{
    position:relative;
    z-index:5;
    max-width:700px;
}

.slide h1,
.slide p{
    color:#fff;
}

.slide .eyebrow{
    color:#ffd54f;
}










.footer-social{
    display:flex;
    justify-content:center;
    align-items:center;
    gap:16px;
    margin-top:30px;
}

.footer-social a{
    width:48px;
    height:48px;
    border-radius:50%;
    display:flex;
    justify-content:center;
    align-items:center;
    background:#ffffff15;
    color:#fff;
    font-size:20px;
    text-decoration:none;
    transition:.35s ease;
    border:1px solid rgba(255,255,255,.15);
}

.footer-social a:hover{
    transform:translateY(-6px);
    background:#00b894;
    color:#fff;
    box-shadow:0 12px 30px rgba(0,184,148,.35);
}