/* ============================================================
   LOHCT.ORG.IN — Common Stylesheet
   Light of Humanity Charitable Trust
   System-UI font stack · WCAG 2.1+ contrast · Zero layout shift
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
  --clr-primary: #1a5632;
  --clr-primary-dark: #0e3a20;
  --clr-primary-light: #e8f5ec;
  --clr-accent: #f7941d;
  --clr-accent-dark: #d97b0a;
  --clr-white: #ffffff;
  --clr-off-white: #f8f9fa;
  --clr-gray-100: #f1f3f5;
  --clr-gray-200: #e9ecef;
  --clr-gray-300: #dee2e6;
  --clr-gray-500: #6c757d;
  --clr-gray-700: #495057;
  --clr-gray-900: #212529;
  --clr-dark: #1a1a2e;
  --clr-success: #28a745;
  --clr-danger: #dc3545;
  --ff-body: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --ff-heading: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --fs-base: 1rem;
  --fs-sm: 0.875rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.25rem;
  --fs-2xl: 1.5rem;
  --fs-3xl: 2rem;
  --fs-4xl: 2.5rem;
  --fs-5xl: 3rem;
  --lh-body: 1.7;
  --lh-heading: 1.25;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
  --max-width: 1200px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --shadow-xl: 0 12px 40px rgba(0,0,0,0.15);
  --transition: 0.3s ease;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--ff-body);
  font-size: var(--fs-base);
  line-height: var(--lh-body);
  color: var(--clr-gray-900);
  background: var(--clr-white);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--clr-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--clr-accent); }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 {
  font-family: var(--ff-heading);
  line-height: var(--lh-heading);
  font-weight: 700;
  color: var(--clr-gray-900);
}

/* --- Utility --- */
.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 1rem; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.text-center { text-align: center; }
.text-white { color: var(--clr-white); }

/* --- Top Bar --- */
.top-bar {
  background: var(--clr-primary-dark);
  color: var(--clr-white);
  font-size: var(--fs-sm);
  padding: 6px 0;
}
.top-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.top-bar a {
  color: var(--clr-white);
  font-size: var(--fs-sm);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.top-bar a:hover { color: var(--clr-accent); }
.top-bar__left { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.top-bar__right { display: flex; align-items: center; gap: 1rem; }
.iso-badge {
  background: var(--clr-accent);
  color: var(--clr-white);
  padding: 2px 10px;
  border-radius: 3px;
  font-weight: 600;
  font-size: 0.75rem;
}

/* --- Header / Navbar --- */
.header {
  background: var(--clr-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0;
}
.header__logo { display: flex; align-items: center; gap: 0.5rem; }
.header__logo img { height: 50px; width: auto; }
.header__logo span {
  font-weight: 700;
  font-size: var(--fs-lg);
  color: var(--clr-primary);
  line-height: 1.2;
}
.nav { display: flex; align-items: center; gap: 0; }
.nav__list { display: flex; gap: 0; align-items: center; }
.nav__item a {
  display: block;
  padding: 0.75rem 1rem;
  font-weight: 500;
  color: var(--clr-gray-900);
  font-size: var(--fs-sm);
  transition: color var(--transition), background var(--transition);
  border-radius: var(--radius-sm);
}
.nav__item a:hover,
.nav__item a.active { color: var(--clr-primary); background: var(--clr-primary-light); }
/* Dropdown Menu */
.nav__item--dropdown { position: relative; }
.nav__item--dropdown > a { display: flex; align-items: center; gap: 4px; }
.nav__item--dropdown > a::after { content: '▾'; font-size: 0.65rem; transition: transform var(--transition); }
.nav__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--clr-white);
  min-width: 220px;
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-md);
  padding: 0.5rem 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all 0.25s ease;
  z-index: 100;
  border-top: 3px solid var(--clr-primary);
}
.nav__item--dropdown:hover .nav__dropdown,
.nav__item--dropdown:focus-within .nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.nav__dropdown a {
  display: block;
  padding: 0.6rem 1.25rem;
  font-size: var(--fs-sm);
  color: var(--clr-gray-900);
  font-weight: 500;
  white-space: nowrap;
  transition: background var(--transition), color var(--transition);
  border-radius: 0;
}
.nav__dropdown a:hover { background: var(--clr-primary-light); color: var(--clr-primary); }

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--clr-accent);
  color: var(--clr-white) !important;
  padding: 0.6rem 1.5rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: var(--fs-sm);
  transition: background var(--transition), transform var(--transition);
}
.nav__cta:hover { background: var(--clr-accent-dark); color: var(--clr-white) !important; transform: translateY(-1px); }

/* --- Form Validation & Captcha --- */
.form-group input.error, .form-group select.error, .form-group textarea.error {
  border-color: #dc3545;
  background: #fff5f5;
}
.form-error {
  color: #dc3545;
  font-size: 0.75rem;
  margin-top: 3px;
  display: none;
}
.form-group input.error ~ .form-error,
.form-group select.error ~ .form-error,
.form-group textarea.error ~ .form-error { display: block; }
.captcha-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.captcha-code {
  background: linear-gradient(135deg, #e9ecef, #dee2e6);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-family: 'Courier New', monospace;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--clr-primary-dark);
  user-select: none;
  border: 1px solid #ced4da;
  min-width: 90px;
  text-align: center;
  text-decoration: line-through;
  position: relative;
}
.captcha-refresh {
  background: none;
  border: 1px solid #dee2e6;
  border-radius: 6px;
  cursor: pointer;
  padding: 0.4rem;
  font-size: 1rem;
  line-height: 1;
  transition: background 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}
.captcha-refresh:hover { background: #f1f3f5; }
.captcha-input {
  flex: 1;
}
.form-btn-row {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}
.form-btn-row .form-submit { flex: 1; }
.form-clear {
  padding: 0.85rem 1.25rem;
  background: #e9ecef;
  color: #495057;
  border: none;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s;
  font-family: inherit;
}
.form-clear:hover { background: #dee2e6; }
.form-success {
  display: none;
  text-align: center;
  padding: 2rem 1rem;
}
.form-success .check-circle {
  width: 64px;
  height: 64px;
  background: #e8f5ec;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-size: 2rem;
}
.form-success h3 { color: var(--clr-primary); margin-bottom: 0.5rem; }
.form-success p { color: #6c757d; font-size: 0.9rem; }
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 5px;
}
.menu-toggle span {
  display: block;
  width: 26px;
  height: 3px;
  background: var(--clr-gray-900);
  border-radius: 2px;
  transition: var(--transition);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0.75rem 2rem;
  font-size: var(--fs-base);
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  line-height: 1.4;
}
.btn--primary { background: var(--clr-primary); color: var(--clr-white); }
.btn--primary:hover { background: var(--clr-primary-dark); color: var(--clr-white); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn--accent { background: var(--clr-accent); color: var(--clr-white); }
.btn--accent:hover { background: var(--clr-accent-dark); color: var(--clr-white); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn--outline { background: transparent; color: var(--clr-primary); border: 2px solid var(--clr-primary); }
.btn--outline:hover { background: var(--clr-primary); color: var(--clr-white); }
.btn--white { background: var(--clr-white); color: var(--clr-primary); }
.btn--white:hover { background: var(--clr-primary-light); color: var(--clr-primary-dark); transform: translateY(-2px); }
.btn--lg { padding: 1rem 2.5rem; font-size: var(--fs-lg); }
.btn--sm { padding: 0.5rem 1.25rem; font-size: var(--fs-sm); }
.btn--whatsapp { background: #25d366; color: var(--clr-white); }
.btn--whatsapp:hover { background: #1da851; color: var(--clr-white); }
.btn--call { background: var(--clr-primary); color: var(--clr-white); }
.btn--call:hover { background: var(--clr-primary-dark); color: var(--clr-white); }

/* --- Page Banner --- */
.page-banner {
  background: linear-gradient(135deg, var(--clr-primary-dark) 0%, var(--clr-primary) 100%);
  color: var(--clr-white);
  padding: var(--spacing-3xl) 0 var(--spacing-2xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  background: rgba(255,255,255,0.04);
  border-radius: 50%;
}
.page-banner h1 {
  font-size: var(--fs-4xl);
  color: var(--clr-white);
  margin-bottom: var(--spacing-sm);
}
.page-banner .breadcrumb {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  font-size: var(--fs-sm);
  color: rgba(255,255,255,0.8);
}
.page-banner .breadcrumb a { color: var(--clr-accent); }

/* --- Section Base --- */
.section {
  padding: var(--spacing-3xl) 0;
}
.section--gray { background: var(--clr-gray-100); }
.section--green { background: var(--clr-primary); color: var(--clr-white); }
.section--dark { background: var(--clr-dark); color: var(--clr-white); }
.section__header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}
.section__header h2 {
  font-size: var(--fs-3xl);
  margin-bottom: var(--spacing-sm);
  position: relative;
  display: inline-block;
}
.section__header h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--clr-accent);
  margin: 0.75rem auto 0;
  border-radius: 2px;
}
.section__header p {
  color: var(--clr-gray-500);
  font-size: var(--fs-lg);
  max-width: 700px;
  margin: 0 auto;
}
.section--green .section__header p,
.section--dark .section__header p { color: rgba(255,255,255,0.8); }
.section--green .section__header h2,
.section--dark .section__header h2 { color: var(--clr-white); }

/* --- Card --- */
.card {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card__icon {
  width: 60px;
  height: 60px;
  background: var(--clr-primary-light);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-sm);
  font-size: 1.75rem;
}
.card__title {
  font-size: var(--fs-xl);
  margin-bottom: 0.5rem;
  color: var(--clr-primary);
}
.card__text {
  color: var(--clr-gray-500);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

/* --- Grid --- */
.grid { display: grid; gap: var(--spacing-lg); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* --- Two-Column Layout --- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}
.split--reverse { direction: rtl; }
.split--reverse > * { direction: ltr; }

/* --- CTA Bar (Contribution) --- */
.cta-bar {
  background: var(--clr-primary-light);
  padding: var(--spacing-2xl) 0;
}
.cta-bar__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--spacing-xl);
  align-items: center;
}
.cta-bar h2 { font-size: var(--fs-2xl); color: var(--clr-primary-dark); margin-bottom: 0.5rem; }
.cta-bar ul { margin-top: 0.5rem; }
.cta-bar li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.25rem;
  color: var(--clr-gray-700);
}
.cta-bar li::before { content: '✓'; position: absolute; left: 0; color: var(--clr-primary); font-weight: 700; }

/* --- Testimonials --- */
.testimonial-card {
  background: var(--clr-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--clr-accent);
  position: relative;
}
.testimonial-card::before {
  content: '\201C';
  font-size: 4rem;
  color: var(--clr-primary-light);
  position: absolute;
  top: 0.5rem;
  left: 1rem;
  line-height: 1;
  font-family: Georgia, serif;
}
.testimonial-card__text {
  font-style: italic;
  color: var(--clr-gray-700);
  margin-bottom: var(--spacing-sm);
  padding-top: 1.5rem;
}
.testimonial-card__author { font-weight: 600; color: var(--clr-primary); }
.testimonial-card__role { font-size: var(--fs-sm); color: var(--clr-gray-500); }

/* --- FAQ --- */
.faq-item {
  background: var(--clr-white);
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.faq-item__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  background: none;
  border: none;
  cursor: pointer;
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--clr-gray-900);
  text-align: left;
  font-family: var(--ff-body);
  gap: 1rem;
  transition: background var(--transition);
}
.faq-item__question:hover { background: var(--clr-gray-100); }
.faq-item__question::after {
  content: '+';
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--clr-primary);
  transition: transform var(--transition);
  flex-shrink: 0;
}
.faq-item.active .faq-item__question::after { content: '−'; }
.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}
.faq-item.active .faq-item__answer { max-height: 500px; }
.faq-item__answer-inner {
  padding: 0 1.25rem 1.25rem;
  color: var(--clr-gray-700);
  line-height: 1.7;
}

/* --- Footer --- */
.footer {
  background: var(--clr-dark);
  color: rgba(255,255,255,0.75);
  padding: var(--spacing-3xl) 0 0;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--spacing-xl);
}
.footer__brand img { height: 50px; margin-bottom: var(--spacing-sm); }
.footer__brand p { font-size: var(--fs-sm); line-height: 1.6; }
.footer h4 {
  color: var(--clr-white);
  font-size: var(--fs-lg);
  margin-bottom: var(--spacing-md);
  position: relative;
  padding-bottom: 0.5rem;
}
.footer h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--clr-accent);
}
.footer__links li { margin-bottom: 0.5rem; }
.footer__links a {
  color: rgba(255,255,255,0.7);
  font-size: var(--fs-sm);
  transition: color var(--transition), padding-left var(--transition);
}
.footer__links a:hover { color: var(--clr-accent); padding-left: 4px; }
.footer__contact li {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  font-size: var(--fs-sm);
  align-items: flex-start;
}
.footer__contact li svg { flex-shrink: 0; margin-top: 3px; }
.footer__contact a { color: rgba(255,255,255,0.7); }
.footer__contact a:hover { color: var(--clr-accent); }
.footer__registered { margin-top: var(--spacing-sm); }
.footer__registered li { font-size: var(--fs-sm); margin-bottom: 0.25rem; }
.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: var(--spacing-2xl);
  padding: var(--spacing-md) 0;
  text-align: center;
  font-size: var(--fs-sm);
}

/* --- Fixed Floating Buttons --- */
.fixed-btns { position: fixed; bottom: 1.25rem; z-index: 999; display: flex; flex-direction: column; gap: 0.75rem; }
.fixed-btns--right { right: 1.25rem; }
.fixed-btns--left { left: 1.25rem; }
.fixed-btn {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-white);
  box-shadow: var(--shadow-lg);
  transition: transform var(--transition), box-shadow var(--transition);
  border: none;
  cursor: pointer;
}
.fixed-btn:hover { transform: scale(1.1); box-shadow: var(--shadow-xl); color: var(--clr-white); }
.fixed-btn--whatsapp { background: #25d366; }
.fixed-btn--scroll { background: var(--clr-primary); }
.fixed-btn--call { background: var(--clr-accent); }
.fixed-btn--save { background: var(--clr-gray-700); }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  :root { --fs-4xl: 2rem; --fs-3xl: 1.75rem; --fs-2xl: 1.35rem; }
  .top-bar { display: none; }
  .menu-toggle { display: flex; }
  .nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--clr-white); box-shadow: var(--shadow-lg); flex-direction: column; padding: 1rem; z-index: 999; }
  .nav.active { display: flex; }
  .nav__list { flex-direction: column; width: 100%; }
  .nav__item a { padding: 0.75rem; border-radius: var(--radius-sm); }
  .nav__item--dropdown .nav__dropdown { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border-top: none; padding: 0 0 0 1rem; min-width: auto; display: none; }
  .nav__item--dropdown.open .nav__dropdown { display: block; }
  .nav__item--dropdown > a::after { content: '▾'; }
  .nav__cta { width: 100%; justify-content: center; margin-top: 0.5rem; }
  .split { grid-template-columns: 1fr; }
  .split--reverse { direction: ltr; }
  .grid--2, .grid--3 { grid-template-columns: 1fr; }
  .cta-bar__inner { grid-template-columns: 1fr; text-align: center; }
  .page-banner { padding: var(--spacing-2xl) 0 var(--spacing-xl); }
  .section { padding: var(--spacing-2xl) 0; }
  .footer__grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .container { padding: 0 0.75rem; }
  .btn--lg { padding: 0.85rem 1.75rem; font-size: var(--fs-base); }
}