/* ===== Patel Brother Institute — shared styles ===== */

:root{
  --paper: #FBF8F2;
  --paper-dim: #F1ECDF;
  --navy: #16324F;
  --navy-deep: #0E2338;
  --gold: #C98A2C;
  --gold-soft: #E7C077;
  --ink: #22262B;
  --ink-muted: #5B6470;
  --line: #DED6C2;
  --radius: 4px;
  --maxw: 1080px;
}

*{ box-sizing: border-box; }

html{ scroll-behavior: smooth; }

body{
  margin:0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
}

h1,h2,h3{
  font-family: "Source Serif 4", Georgia, serif;
  color: var(--navy-deep);
  line-height: 1.2;
  margin: 0 0 .5em;
}

h1{ font-size: clamp(2rem, 4vw, 2.9rem); font-weight: 600; }
h2{ font-size: clamp(1.5rem, 2.6vw, 2rem); font-weight: 600; }
h3{ font-size: 1.2rem; font-weight: 600; }

p{ margin: 0 0 1em; max-width: 68ch; color: var(--ink); }
p.lede{ font-size: 1.1rem; color: var(--ink-muted); }

a{ color: var(--navy); }

.wrap{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---- Header / Nav ---- */
header.site-header{
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 1rem 0;
}

.brand{
  display:flex;
  flex-direction: column;
  text-decoration:none;
  line-height:1.1;
}
.brand .name{
  font-family:"Source Serif 4", serif;
  font-weight:700;
  font-size:1.25rem;
  color: var(--navy-deep);
}
.brand .tag{
  font-size:.72rem;
  color: var(--ink-muted);
  letter-spacing:.02em;
}

nav.main-nav ul{
  list-style:none;
  display:flex;
  gap: 1.75rem;
  margin:0; padding:0;
}
nav.main-nav a{
  text-decoration:none;
  color: var(--ink);
  font-size: .95rem;
  padding: .3rem 0;
  border-bottom: 2px solid transparent;
}
nav.main-nav a:hover,
nav.main-nav a.active{
  color: var(--navy-deep);
  border-bottom-color: var(--gold);
}

.nav-toggle{
  display:none;
  background:none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: .4rem .6rem;
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  width:20px; height:2px;
  background: var(--navy-deep);
  margin: 4px 0;
}

@media (max-width: 760px){
  nav.main-nav{
    display:none;
    width:100%;
  }
  nav.main-nav.open{ display:block; }
  nav.main-nav ul{
    flex-direction:column;
    gap: 0;
    padding: .5rem 0 1rem;
  }
  nav.main-nav a{
    display:block;
    padding: .6rem 0;
    border-bottom: 1px solid var(--line);
  }
  .nav-toggle{ display:block; }
}

/* ---- Hero ---- */
.hero{
  padding: 4.5rem 0 3.5rem;
  border-bottom: 1px solid var(--line);
}
.hero .eyebrow-line{
  width: 46px; height: 3px; background: var(--gold);
  margin-bottom: 1.1rem;
}
.hero .actions{ margin-top: 1.6rem; display:flex; gap: 1rem; flex-wrap:wrap; }

.btn{
  display:inline-block;
  text-decoration:none;
  padding: .75rem 1.4rem;
  border-radius: var(--radius);
  font-size: .95rem;
  font-weight: 600;
  border: 1px solid transparent;
}
.btn-primary{ background: var(--navy-deep); color: #fff; }
.btn-primary:hover{ background: var(--navy); }
.btn-outline{ border-color: var(--navy-deep); color: var(--navy-deep); }
.btn-outline:hover{ background: var(--paper-dim); }

/* ---- Sections ---- */
section{ padding: 3.5rem 0; }
section.alt{ background: var(--paper-dim); }
section + section{ border-top: 1px solid var(--line); }

.grid{
  display:grid;
  gap: 2rem;
}
.grid-3{ grid-template-columns: repeat(3, 1fr); }
.grid-2{ grid-template-columns: repeat(2, 1fr); }
@media (max-width: 760px){
  .grid-3, .grid-2{ grid-template-columns: 1fr; }
}

.item{
  border-top: 3px solid var(--gold);
  padding-top: 1rem;
}
.item h3{ margin-bottom:.4rem; }
.item p{ color: var(--ink-muted); }

.person{ text-align:left; }
.person .avatar{
  width:64px; height:64px;
  border-radius: 50%;
  background: var(--navy-deep);
  color: var(--gold-soft);
  display:flex; align-items:center; justify-content:center;
  font-family:"Source Serif 4", serif;
  font-size:1.3rem;
  margin-bottom: .9rem;
}
.person .role{ color: var(--gold); font-size:.85rem; font-weight:600; margin-bottom:.4rem; }

/* ---- Certificate ---- */
.cert-card{
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius);
  overflow:hidden;
}
.cert-card .cert-head{
  background: var(--navy-deep);
  color: #fff;
  padding: 1.3rem 1.6rem;
}
.cert-card .cert-head .no{
  color: var(--gold-soft);
  font-weight:700;
  letter-spacing:.03em;
}
.cert-table{
  width:100%;
  border-collapse: collapse;
}
.cert-table tr{ border-bottom: 1px solid var(--line); }
.cert-table tr:last-child{ border-bottom:none; }
.cert-table th, .cert-table td{
  text-align:left;
  padding: .85rem 1.6rem;
  vertical-align: top;
  font-size: .95rem;
}
.cert-table th{
  width: 42%;
  color: var(--ink-muted);
  font-weight:600;
}
.badge{
  display:inline-block;
  background: var(--paper-dim);
  border: 1px solid var(--gold);
  color: var(--navy-deep);
  font-size: .78rem;
  font-weight:600;
  padding: .2rem .6rem;
  border-radius: 999px;
}
.cert-note{
  font-size: .85rem;
  color: var(--ink-muted);
  padding: 1.2rem 1.6rem;
  border-top: 1px solid var(--line);
}

/* ---- Contact ---- */
.contact-grid{ display:grid; grid-template-columns: 1.1fr .9fr; gap: 2.5rem; }
@media (max-width:760px){ .contact-grid{ grid-template-columns:1fr; } }
.field-line{ display:flex; gap:.6rem; padding: .55rem 0; border-bottom: 1px dashed var(--line); }
.field-line .label{ width: 120px; color: var(--ink-muted); font-size:.9rem; flex-shrink:0; }

form.contact-form{ display:flex; flex-direction:column; gap: 1rem; }
form.contact-form input,
form.contact-form textarea{
  font-family: inherit;
  font-size: .95rem;
  padding: .7rem .8rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
}
form.contact-form label{ font-size:.85rem; color: var(--ink-muted); margin-bottom:.3rem; display:block; }
.form-status{ font-size:.9rem; color: var(--navy); min-height: 1.2em; }

/* ---- Footer ---- */
footer.site-footer{
  border-top: 1px solid var(--line);
  padding: 2rem 0;
  color: var(--ink-muted);
  font-size: .85rem;
}
footer.site-footer .wrap{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap: .6rem;
}

:where(a, button):focus-visible{
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
}