/* ==========================
   GLOBAL RESET & VARIABLES
========================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

:root {
  --primary: #0b6b5b;
  --secondary: #0e9f8a;
  --dark: #1f2933;
  --muted: #6b7280;
  --bg-light: #f9fafb;
  --white: #ffffff;
  --border: #e5e7eb;
}

/* ==========================
   BASE STYLES
========================== */
body {
  background: var(--bg-light);
  color: var(--dark);
  line-height: 1.6;
}

.container {
  max-width: 1100px;
  margin: auto;
  padding: 0 1.2rem;
}

/* ==========================
   HERO SECTION
========================== */
.page-hero {
  background: linear-gradient(
    rgba(11, 107, 91, 0.88),
    rgba(11, 107, 91, 0.88)
  ),
  url("image/donate-bg.jpg") center/cover no-repeat;
  color: var(--white);
  text-align: center;
  padding: 5.5rem 1rem;
}

.page-hero h1 {
  font-size: 2.8rem;
  margin-bottom: 0.8rem;
  font-weight: 700;
}

.page-hero p {
  max-width: 720px;
  margin: auto;
  font-size: 1.1rem;
  opacity: 0.95;
}

/* ==========================
   DONATE SECTION
========================== */
.donate-section {
  padding: 5rem 0;
}

.donate-form {
  max-width: 520px;
  margin: auto;
  background: var(--white);
  padding: 2.8rem 2.2rem;
  border-radius: 18px;
  box-shadow: 0 18px 55px rgba(0, 0, 0, 0.1);
}

.donate-form h2 {
  text-align: center;
  margin-bottom: 1.8rem;
  font-size: 1.9rem;
  color: var(--primary);
}

/* ==========================
   FORM ELEMENTS
========================== */
.form-group {
  margin-bottom: 1.4rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.4rem;
  font-size: 0.95rem;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 0.75rem 0.85rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  font-size: 0.95rem;
  transition: border 0.25s ease, box-shadow 0.25s ease;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--secondary);
  box-shadow: 0 0 0 3px rgba(14, 159, 138, 0.15);
}

/* ==========================
   DONATE BUTTON
========================== */
.btn-submit {
  width: 100%;
  background: linear-gradient(
    to right,
    var(--primary),
    var(--secondary)
  );
  color: var(--white);
  border: none;
  padding: 0.9rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 12px;
  cursor: pointer;
  margin-top: 0.6rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-submit:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(11, 107, 91, 0.35);
}

/* ==========================
   TRUST TEXT
========================== */
.donate-trust {
  text-align: center;
  margin-top: 1.2rem;
  font-size: 0.9rem;
  color: var(--muted);
}

/* ==========================
   FOOTER
========================== */
.site-footer {
  background: #0b3f36;
  color: var(--white);
  text-align: center;
  padding: 1.8rem 1rem;
  margin-top: 4rem;
}

.site-footer p {
  font-size: 0.9rem;
  opacity: 0.9;
}

/* ==========================
   FADE-IN ANIMATION
========================== */
.fade-in {
  animation: fadeUp 0.9s ease forwards;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(25px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========================
   RESPONSIVE DESIGN
========================== */
@media (max-width: 768px) {
  .page-hero h1 {
    font-size: 2.2rem;
  }

  .donate-form {
    padding: 2.2rem 1.6rem;
  }
}