/* Vidya Public School - Modern responsive theme */

:root{
  --bg: #f3f8ff;
  --surface: #ffffff;
  --text: #0f1b2d;
  --muted: #5b6b86;
  --primary: #1e66f5;
  --primary-2: #0ea5e9;
  --primary-3: #7c3aed;
  --ring: rgba(30,102,245,.25);
  --border: rgba(15,27,45,.10);
  --shadow: 0 12px 30px rgba(15,27,45,.10);
  --shadow-sm: 0 8px 18px rgba(15,27,45,.10);
  --radius: 18px;
  --radius-sm: 14px;
  --container: 1120px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, "Noto Sans", "Liberation Sans", sans-serif;
  color:var(--text);
  background:
    radial-gradient(1200px 700px at 10% -5%, rgba(14,165,233,.18), transparent 55%),
    radial-gradient(900px 600px at 100% 10%, rgba(30,102,245,.15), transparent 50%),
    radial-gradient(900px 500px at 50% 120%, rgba(124,58,237,.10), transparent 50%),
    var(--bg);
  line-height:1.55;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font:inherit; }

.container{
  width:min(var(--container), calc(100% - 2rem));
  margin-inline:auto;
}
.section{ padding:3.25rem 0; }
.section--tight{ padding:2.25rem 0; }
.section__title{
  font-size: clamp(1.35rem, 1.05rem + 1.1vw, 2.1rem);
  margin:0 0 .4rem 0;
  letter-spacing:-.02em;
}
.section__subtitle{
  margin:0 0 1.4rem 0;
  color:var(--muted);
  max-width:65ch;
}

.pill{
  display:inline-flex;
  gap:.45rem;
  align-items:center;
  padding:.4rem .7rem;
  border-radius:999px;
  background: rgba(30,102,245,.10);
  color: #174bba;
  border: 1px solid rgba(30,102,245,.16);
  font-weight:600;
  font-size:.9rem;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.55rem;
  padding:.85rem 1.05rem;
  border-radius:999px;
  border:1px solid transparent;
  background: linear-gradient(135deg, var(--primary), var(--primary-2), var(--primary-3));
  color:#fff;
  font-weight:700;
  box-shadow: 0 10px 24px rgba(30,102,245,.28);
  transition: transform .18s ease, box-shadow .18s ease, filter .18s ease;
  cursor:pointer;
}
.btn:hover{ transform: translateY(-1px); filter: brightness(1.02); }
.btn:active{ transform: translateY(0px); }
.btn--ghost{
  background: rgba(255,255,255,.65);
  color: var(--text);
  border-color: rgba(15,27,45,.12);
  box-shadow: none;
  backdrop-filter: blur(10px);
}
.btn--ghost:hover{ box-shadow: var(--shadow-sm); }

.card{
  background:
    linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.86));
  border:1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.card--padded{ padding:1.2rem; }
.card--hover{
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card--hover:hover{
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: rgba(30,102,245,.22);
}

.grid{
  display:grid;
  gap:1rem;
}
.grid--2{ grid-template-columns: 1fr; }
.grid--3{ grid-template-columns: 1fr; }
.grid--4{ grid-template-columns: 1fr; }

/* Header / Nav */
.skip-link{
  position:absolute;
  left:-999px; top: .5rem;
  padding:.6rem .9rem;
  border-radius: 10px;
  background: var(--surface);
  border:1px solid var(--border);
  z-index:9999;
}
.skip-link:focus{ left:.75rem; }

.header{
  position:sticky;
  top:0;
  z-index:50;
  background: rgba(247,251,255,.72);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(15,27,45,.08);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:.75rem 0;
  gap:1rem;
}
.brand{
  display:flex;
  align-items:center;
  gap:.7rem;
  min-width: 170px;
}
.brand__mark{
  width:42px; height:42px;
  border-radius: 14px;
  display:grid;
  place-items:center;
  color:#fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-2));
  box-shadow: 0 10px 24px rgba(30,102,245,.25);
}
.brand__name{
  display:flex;
  flex-direction:column;
  line-height:1.1;
}
.brand__name strong{ font-size:1.02rem; letter-spacing:-.01em; }
.brand__name span{ font-size:.82rem; color:var(--muted); }

.nav__links{
  display:none;
  align-items:center;
  gap:.5rem;
}
.nav__links a{
  padding:.55rem .75rem;
  border-radius: 999px;
  color: var(--muted);
  font-weight:700;
  transition: background .18s ease, color .18s ease;
}
.nav__links a:hover{ background: rgba(30,102,245,.10); color: #174bba; }
.nav__links a[aria-current="page"]{ background: rgba(30,102,245,.12); color:#174bba; }

.nav__actions{ display:flex; align-items:center; gap:.6rem; }
.hamburger{
  width:44px; height:44px;
  border-radius: 14px;
  border:1px solid rgba(15,27,45,.12);
  background: rgba(255,255,255,.65);
  display:grid;
  place-items:center;
  cursor:pointer;
  transition: transform .18s ease, box-shadow .18s ease;
}
.hamburger:hover{ box-shadow: var(--shadow-sm); transform: translateY(-1px); }
.hamburger__bars{
  width:18px; height:12px; position:relative;
}
.hamburger__bars span{
  position:absolute; left:0; right:0;
  height:2px; border-radius:999px;
  background: var(--text);
  transition: transform .2s ease, top .2s ease, opacity .2s ease;
}
.hamburger__bars span:nth-child(1){ top:0; }
.hamburger__bars span:nth-child(2){ top:5px; }
.hamburger__bars span:nth-child(3){ top:10px; }

/* Mobile drawer */
.drawer-backdrop{
  position:fixed;
  inset:0;
  background: rgba(15,27,45,.45);
  opacity:0;
  pointer-events:none;
  transition: opacity .22s ease;
  z-index:90;
}
.drawer{
  position:fixed;
  top:0; right:0;
  height:100dvh;
  width:min(86vw, 360px);
  background: rgba(255,255,255,.86);
  backdrop-filter: blur(14px);
  border-left:1px solid rgba(15,27,45,.10);
  transform: translateX(102%);
  transition: transform .22s ease;
  z-index:100;
  display:flex;
  flex-direction:column;
  padding: .9rem;
  gap:.8rem;
}
.drawer__top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:.5rem;
}
.drawer__links{
  display:grid;
  gap:.35rem;
}
.drawer__links a{
  padding:.9rem .85rem;
  border-radius: 16px;
  border: 1px solid rgba(15,27,45,.10);
  background: rgba(255,255,255,.70);
  font-weight:800;
  color: var(--text);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.drawer__links a:hover{
  transform: translateY(-1px);
  border-color: rgba(30,102,245,.22);
  box-shadow: var(--shadow-sm);
}
.drawer__meta{
  margin-top:auto;
  color: var(--muted);
  font-size:.95rem;
  border-top:1px solid rgba(15,27,45,.08);
  padding-top:.8rem;
}

.nav-open .drawer-backdrop{ opacity:1; pointer-events:auto; }
.nav-open .drawer{ transform: translateX(0); }
.nav-open .hamburger__bars span:nth-child(1){ top:5px; transform: rotate(45deg); }
.nav-open .hamburger__bars span:nth-child(2){ opacity:0; }
.nav-open .hamburger__bars span:nth-child(3){ top:5px; transform: rotate(-45deg); }

/* Hero */
.hero{
  padding: 2.2rem 0 2.8rem;
}
.hero__wrap{
  border-radius: min(26px, 5vw);
  overflow:hidden;
  border: 1px solid rgba(255,255,255,.35);
  box-shadow: var(--shadow);
  background:
    linear-gradient(120deg, rgba(14,165,233,.38), rgba(30,102,245,.28), rgba(124,58,237,.24)),
    linear-gradient(180deg, rgba(15,27,45,.52), rgba(15,27,45,.45)),
    url("../images/hero/hero-main.jpeg");
  background-size: cover;
  background-position: center;
}
.hero__inner{
  padding: 2.2rem 1.15rem;
  display:grid;
  gap:1.1rem;
}
.hero__title{
  margin:0;
  font-size: clamp(1.65rem, 1.2rem + 2.2vw, 3.05rem);
  letter-spacing:-.03em;
  color:#fff;
}
.hero__lead{
  margin:0;
  color: rgba(255,255,255,.88);
  max-width: 62ch;
}
.hero__actions{ display:flex; gap:.65rem; flex-wrap:wrap; }
.hero__stats{
  display:grid;
  grid-template-columns: 1fr;
  gap:.75rem;
  margin-top: .6rem;
}
.stat{
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.20);
  border-radius: 18px;
  padding: .9rem 1rem;
  backdrop-filter: blur(10px);
}
.stat strong{
  display:block;
  color:#fff;
  font-size:1.1rem;
  letter-spacing:-.02em;
}
.stat span{ color: rgba(255,255,255,.86); font-size:.92rem; }

/* Feature chips */
.chips{ display:flex; gap:.55rem; flex-wrap:wrap; }
.chip{
  padding:.5rem .7rem;
  border-radius: 999px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.18);
  color: rgba(255,255,255,.92);
  font-weight:700;
  font-size:.9rem;
}

/* Lists & text */
.kicker{ margin:0 0 .6rem 0; color: var(--muted); font-weight:700; }
.prose{ color: var(--muted); margin:0; }
.stack{ display:grid; gap:1rem; }

/* Icon cards */
.icon-card{
  display:grid;
  grid-template-columns: 46px 1fr;
  gap: .9rem;
  align-items:flex-start;
}
.icon{
  width:46px; height:46px;
  border-radius: 16px;
  display:grid;
  place-items:center;
  background: rgba(30,102,245,.10);
  border:1px solid rgba(30,102,245,.16);
  color: #174bba;
}
.icon svg{ width:22px; height:22px; }
.icon-card h3{ margin:.05rem 0 .25rem 0; font-size:1.05rem; letter-spacing:-.01em; }
.icon-card p{ margin:0; color: var(--muted); font-size:.98rem; }

/* Gallery */
.gallery-grid{
  display:grid;
  gap: .9rem;
  grid-template-columns: repeat(2, 1fr);
}
.gallery-item{
  position:relative;
  border-radius: 18px;
  overflow:hidden;
  border: 1px solid rgba(15,27,45,.10);
  background: #eaf2ff;
  aspect-ratio: 4 / 3;
  cursor:pointer;
  transition: transform .18s ease, box-shadow .18s ease;
}
.gallery-item img{
  width:100%;
  height:100%;
  object-fit: cover;
  transform: scale(1.01);
  transition: transform .25s ease;
}
.gallery-item::after{
  content:"";
  position:absolute;
  inset:0;
  background: linear-gradient(180deg, transparent, rgba(15,27,45,.45));
  opacity:0;
  transition: opacity .25s ease;
}
.gallery-item .gallery-item__label{
  position:absolute;
  left:.75rem; bottom:.7rem;
  color:#fff;
  font-weight:800;
  opacity:1;
  transform: translateY(0);
  transition: opacity .25s ease, transform .25s ease;
  z-index:1;
  text-shadow: 0 8px 30px rgba(0,0,0,.4);
  padding:.24rem .5rem;
  border-radius:999px;
  background: rgba(15,27,45,.42);
  border:1px solid rgba(255,255,255,.22);
}
.gallery-item .gallery-item__meta{
  position:absolute;
  right:.75rem;
  bottom:.65rem;
  z-index:1;
  color:#fff;
  font-size:.76rem;
  font-weight:700;
  padding:.24rem .5rem;
  border-radius:999px;
  background: rgba(15,27,45,.45);
  border:1px solid rgba(255,255,255,.25);
  opacity:1;
  transform: translateY(0);
  transition: opacity .25s ease, transform .25s ease;
}
.gallery-item:hover{ transform: translateY(-2px); box-shadow: var(--shadow); }
.gallery-item:hover img{ transform: scale(1.08); }
.gallery-item:hover::after{ opacity:1; }
.gallery-item:hover .gallery-item__label{ opacity:1; transform: translateY(0); }
.gallery-item:hover .gallery-item__meta{ opacity:1; transform: translateY(0); }

.gallery-filters{
  display:flex;
  gap:.55rem;
  flex-wrap:wrap;
  margin-bottom:1rem;
}
.gallery-filter{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  padding:.52rem .78rem;
  border-radius:999px;
  border:1px solid rgba(15,27,45,.12);
  background: rgba(255,255,255,.75);
  font-weight:700;
  color: var(--muted);
  transition: all .18s ease;
}
.gallery-filter:hover{
  color:#174bba;
  border-color: rgba(30,102,245,.3);
}
.gallery-filter.is-active{
  background: linear-gradient(135deg, rgba(30,102,245,.12), rgba(14,165,233,.12));
  color:#174bba;
  border-color: rgba(30,102,245,.35);
}

.event-card{
  border-radius: var(--radius);
  overflow: hidden;
}
.event-card__head{
  padding: .9rem 1rem;
  background: linear-gradient(135deg, rgba(30,102,245,.12), rgba(14,165,233,.12), rgba(124,58,237,.10));
  border-bottom: 1px solid var(--border);
}
.event-card__head strong{
  font-size:1.02rem;
  letter-spacing:-.01em;
}
.event-card__head span{
  display:block;
  color: var(--muted);
  font-weight:700;
  margin-top:.2rem;
  font-size:.9rem;
}
.event-card__body{ padding: 1rem; }

/* Lightbox */
.lightbox{
  position:fixed;
  inset:0;
  background: rgba(15,27,45,.78);
  display:none;
  align-items:center;
  justify-content:center;
  padding: 1.1rem;
  z-index:200;
}
.lightbox[aria-hidden="false"]{ display:flex; }
.lightbox__panel{
  width:min(980px, 100%);
  border-radius: 22px;
  overflow:hidden;
  border: 1px solid rgba(255,255,255,.18);
  box-shadow: 0 24px 80px rgba(0,0,0,.35);
  background: rgba(255,255,255,.08);
  backdrop-filter: blur(14px);
}
.lightbox__top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:.75rem;
  padding: .75rem .85rem;
  color:#fff;
  border-bottom: 1px solid rgba(255,255,255,.14);
}
.lightbox__title{
  font-weight:800;
  letter-spacing:-.01em;
}
.lightbox__close{
  width:42px; height:42px;
  border-radius: 14px;
  border:1px solid rgba(255,255,255,.20);
  background: rgba(255,255,255,.08);
  color:#fff;
  cursor:pointer;
  transition: transform .18s ease, background .18s ease;
}
.lightbox__close:hover{ transform: translateY(-1px); background: rgba(255,255,255,.14); }
.lightbox__img{
  width:100%;
  height:min(70dvh, 720px);
  object-fit: contain;
  background: rgba(0,0,0,.18);
}

/* Announcements */
.notice{
  display:grid;
  gap:.35rem;
}
.notice__meta{
  display:flex;
  flex-wrap:wrap;
  gap:.5rem;
  align-items:center;
  color: var(--muted);
  font-weight:700;
  font-size:.95rem;
}
.badge{
  display:inline-flex;
  align-items:center;
  gap:.4rem;
  padding:.35rem .6rem;
  border-radius:999px;
  border:1px solid rgba(15,27,45,.10);
  background: rgba(255,255,255,.70);
}
.notice h3{
  margin:.1rem 0 0 0;
  font-size:1.1rem;
  letter-spacing:-.01em;
}
.notice p{ margin:.35rem 0 0 0; color:var(--muted); }

/* Contact */
.contact-grid{
  display:grid;
  gap:1rem;
}
.contact-item{
  display:flex;
  gap:.75rem;
  align-items:flex-start;
}
.contact-item strong{ display:block; }
.contact-item span{ color: var(--muted); }
.map{
  border-radius: 18px;
  overflow:hidden;
  border:1px solid rgba(15,27,45,.10);
  box-shadow: var(--shadow-sm);
  background: var(--surface);
}

/* Footer */
.footer{
  padding: 2.2rem 0;
  border-top: 1px solid rgba(15,27,45,.08);
  background: rgba(255,255,255,.55);
  backdrop-filter: blur(10px);
}
.footer-grid{
  display:grid;
  gap:1rem;
}
.footer a{ color: var(--muted); font-weight:700; }
.footer a:hover{ color:#174bba; }
.social{
  display:flex;
  gap:.5rem;
}
.social a{
  width:42px; height:42px;
  border-radius: 14px;
  border:1px solid rgba(15,27,45,.12);
  background: rgba(255,255,255,.70);
  display:grid;
  place-items:center;
  transition: transform .18s ease, box-shadow .18s ease;
}
.social a:hover{ transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.fineprint{ color: var(--muted); font-size:.95rem; margin:.8rem 0 0 0; }

/* Scroll reveal */
[data-reveal]{
  opacity:0;
  transform: translateY(14px);
  transition: opacity .6s ease, transform .6s ease;
  will-change: opacity, transform;
}
[data-reveal].is-visible{
  opacity:1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ transition:none !important; animation:none !important; }
}

/* Loading overlay */
.loader{
  position:fixed;
  inset:0;
  display:grid;
  place-items:center;
  background: rgba(247,251,255,.9);
  backdrop-filter: blur(10px);
  z-index:300;
  transition: opacity .25s ease, visibility .25s ease;
}
.loader[aria-hidden="true"]{
  opacity:0;
  visibility:hidden;
  pointer-events:none;
}
.spinner{
  width:46px; height:46px;
  border-radius: 999px;
  border: 4px solid rgba(30,102,245,.18);
  border-top-color: rgba(30,102,245,.85);
  animation: spin .9s linear infinite;
}
@keyframes spin{ to{ transform: rotate(360deg); } }

/* Scroll-to-top */
.to-top{
  position:fixed;
  right: 1rem;
  bottom: 1rem;
  width:48px;
  height:48px;
  border-radius: 18px;
  border:1px solid rgba(15,27,45,.12);
  background: rgba(255,255,255,.76);
  box-shadow: var(--shadow-sm);
  display:grid;
  place-items:center;
  opacity:0;
  transform: translateY(8px);
  pointer-events:none;
  transition: opacity .2s ease, transform .2s ease;
  z-index:120;
}
.to-top.is-visible{
  opacity:1;
  transform: translateY(0);
  pointer-events:auto;
}
.to-top svg{ width:20px; height:20px; }

/* Page header (internal pages) */
.page-head{
  padding: 1.4rem 0 1.2rem;
}
.breadcrumbs{
  display:flex;
  flex-wrap:wrap;
  gap:.35rem;
  color: var(--muted);
  font-weight:700;
  margin-top:.35rem;
}

/* Responsive */
@media (min-width: 640px){
  .hero__inner{ padding: 2.8rem 1.75rem; }
  .hero__stats{ grid-template-columns: repeat(3, 1fr); }
  .grid--2{ grid-template-columns: repeat(2, 1fr); }
  .gallery-grid{ grid-template-columns: repeat(3, 1fr); }
  .footer-grid{ grid-template-columns: 1.2fr 1fr 1fr; }
  .contact-grid{ grid-template-columns: 1fr 1.2fr; align-items:stretch; }
}
@media (min-width: 920px){
  .nav__links{ display:flex; }
  .hamburger{ display:none; }
  .grid--3{ grid-template-columns: repeat(3, 1fr); }
  .grid--4{ grid-template-columns: repeat(4, 1fr); }
  .hero{ padding: 2.5rem 0 3.2rem; }
  .hero__inner{
    grid-template-columns: 1.15fr .85fr;
    align-items:end;
    gap: 1.6rem;
  }
  .hero__stats{ margin-top: 0; }
  .gallery-grid{ grid-template-columns: repeat(4, 1fr); }
}