* { box-sizing: border-box; }
html,body { height:100%; }
body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  color: #0F172A;
  background: #F8FAFC;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
  padding-top: 70px;
}

.container { max-width: 1120px; margin: 0 auto; padding: 20px; }

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #E5E7EB;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: "Poppins", sans-serif;
  font-weight: 700;
  color: #2563EB;
  text-decoration: none;
  font-size: 1.05rem;
}

.brand .logo {
  width: 50px;
  height: auto;
}

.brand .brand-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: #2563EB;
}

@media (max-width: 720px) {
  .brand .brand-name {
    font-size: 15px;
  }
}

.header-inner { display: flex; align-items: center; gap: 12px; justify-content: space-between; }
.brand { font-family: "Poppins", sans-serif; font-weight: 700; color: #2563EB; text-decoration: none; font-size: 1.05rem; }
.nav a { margin: 0 8px; text-decoration: none; color: #64748B; font-weight: 600; }
.nav a:hover { color: #0F172A; }

.menu-btn { display: none; background: transparent; border: 0; font-size: 20px; cursor: pointer; }

.btn { display: inline-block; padding: 10px 14px; border-radius: 10px; text-decoration: none; font-weight: 700; cursor: pointer; transition: transform .18s ease, box-shadow .18s ease; }
.btn-primary { background: #2563EB; color: #fff; border: 0; }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(37,99,235,0.15); background: #1D4ED8; }
.btn-outline {
  background: transparent;
  border: 2px solid rgba(255,255,255,0.9);
  color: white;
  padding: 9px 12px;
  border-radius: 10px;
  font-weight: 700;
  transition: all 0.25s ease;
}

.btn-outline:hover {
  background: #F97316;
  color: #fff;
  border-color: #F97316;
  transform: translateY(-3px);
  box-shadow: 0 10px 25px rgba(249,115,22,0.3);
}

.hero {
  position: relative;
  color: #fff;
  padding: 100px 0;
  text-align: center;
  border-radius: 0 0 22px 22px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(37,99,235,0.7), rgba(249,115,22,0.7)),
              url('../assets/images/banner.jpg') center/cover no-repeat;
}

.hero h1 {
  font-family: "Poppins", sans-serif;
  font-size: 3rem;
  margin: 0 0 12px 0;
}

.hero .tag {
  font-size: 1.2rem;
  margin-bottom: 24px;
  opacity: 0.95;
}

.hero .cta-row .btn {
  margin: 0 8px;
}

.hero-media img { width: 100%; border-radius: 12px; box-shadow: 0 20px 50px rgba(2,6,23,0.3); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 28px;
  align-items: center;
}

@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-media { order: 2; }
  .about-text { order: 1; }
}

.about-media img { width: 100%; border-radius: 12px; display: block; }

.about-text p { margin-top: 0; color: #0F172A; line-height: 1.6; }
.quick-list { margin-top: 14px; padding-left: 18px; color: #334155; }

.section-title { text-align: center; font-family: "Poppins", sans-serif; margin-bottom: 18px; color: #0F172A; }
.cards-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; margin-top: 14px; }
.card {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
  color: #fff;
  min-height: 260px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  border-radius: 12px;
  padding: 20px;
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.45);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.3);
}

.card h3,
.card p {
  position: relative;
  margin: 0;
  z-index: 2;
}

.donate-grid { display: grid; grid-template-columns: 1fr 420px; gap: 24px; align-items: start; }
.donate-form { background: #fff; padding: 18px; border-radius: 10px; border: 1px solid #E5E7EB; box-shadow: 0 10px 30px rgba(2,6,23,0.06); }
.donate-form label { display: block; font-size: .95rem; color: #475569; margin-bottom: 12px; }
.donate-form input, .donate-form select { width: 100%; padding: 10px; margin-top: 6px; border-radius: 8px; border: 1px solid #E5E7EB; }
.full { width: 100%; }
input:invalid + .error,
select:invalid + .error { display: block; }
.error { display: none; color: #DC2626; font-size: 0.8rem; margin-top: 4px; }
input:disabled { background: #f1f5f9; cursor: not-allowed; }

.section-title {
  text-align: center;
  font-family: "Poppins", sans-serif;
  font-size: 2rem;
  margin-bottom: 24px;
  color: #2563EB;
  position: relative;
}

.section-title::after {
  content: "";
  display: block;
  width: 60px;
  height: 4px;
  background: #F97316;
  margin: 8px auto 0;
  border-radius: 2px;
}

.donate-info {
  background: linear-gradient(rgba(37,99,235,0.65), rgba(249,115,22,0.65)),
              url('../assets/images/volunteers.png') center/cover no-repeat;
  color: #fff;
  border-radius: 12px;
  padding: 24px;
  height: 100%;
}

.donate-info p, 
.donate-info li { color: #f8fafc; }

.footer {
  background: #1f2937;
  color: #e5e7eb;
  padding: 18px 0 22px;
}

.footer-grid {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 150px;
  text-align: center;
  flex-wrap: wrap;
}

.f-col div { margin-bottom: 6px; }
.f-col div:last-child { margin-bottom: 0; }
.f-col h4 { margin: 0 0 10px 0; color: #fff; }
.f-col a { display: block; margin-bottom: 6px; color: #e5e7eb; text-decoration: none; }
.f-col a:hover { color: #F97316; font-weight: 600; }

.socials a {
  margin-right: 14px;
  font-size: 1.4rem;
  display: inline-block;
  transition: transform 0.3s ease;
}

.socials a:hover { transform: scale(1.2); }

.socials a[aria-label="Facebook"] i { color: #1877F2; }
.socials a[aria-label="Twitter"] i { color: #1DA1F2; }
.socials a[aria-label="Instagram"] i { 
  background: radial-gradient(circle at 30% 107%, #fdf497 0%, #fd5949 45%, #d6249f 60%, #285AEB 90%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.copyright { text-align: center; margin-top: 20px; font-size: 0.9rem; color: #9ca3af; }
.hero-note { margin-top: 12px; opacity: .95; font-weight:600; }

.cards-grid .card:nth-child(1) { transition-delay: 0s; }
.cards-grid .card:nth-child(2) { transition-delay: .05s; }
.cards-grid .card:nth-child(3) { transition-delay: .1s; }

@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr 380px; }
  .about-grid { grid-template-columns: 1fr; }
  .donate-grid { grid-template-columns: 1fr; }
  .cards-grid { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 720px) {
  .menu-btn { display: inline-block; }
  .hero-grid { grid-template-columns: 1fr; }
  .cards-grid { grid-template-columns: 1fr; }
  .container { padding: 14px; }
}

@media (max-width: 720px) {
 .footer-grid {
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }
  .socials { margin-top: 10px; }
}

.nav { display: flex; gap: 18px; }

@media (max-width: 720px) {
  .nav {
    display: none;
    flex-direction: column;
    background: rgba(31, 41, 55, 0.6);
    backdrop-filter: blur(8px);
    position: absolute;
    top: 72px;
    left: 0;
    width: 100%;
    padding: 12px 0;
    border-radius: 0 0 12px 12px;
    z-index: 1000;
  }
  .nav a { color: #f3f4f6; padding: 12px; text-align: center; font-weight: 600; }
  .nav a:hover { background: rgba(249, 115, 22, 0.85); color: #fff; }
  .nav.active { display: flex; }
  .menu-btn { display: inline-block; font-size: 1.6rem; background: none; border: none; cursor: pointer; color: #2563EB; }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-15px); }
  to   { opacity: 1; transform: translateY(0); }
}