* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: Arial, sans-serif;
  background-color: #ffffff;
  color: #222;
}

/* Wrapper */
.landing-wrapper {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* HEADER */
.landing-header {
  position: relative;
  background-color: #0078D4;
  color: white;
  padding: 18px 20px;
  text-align: center;
}

.landing-header h1 {
  font-size: 1.4rem;
  margin: 0;
}

/* OPEN BUTTON (now <button>) */
.open-btn {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  padding: 8px 18px;
  border-radius: 25px;
  background-color: #ffffff;
  color: #0078D4;
  border: 2px solid #ffffff;
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background-color 0.2s, color 0.2s, box-shadow 0.2s;
}

.open-btn:hover {
  background-color: #e6f1fb;
  color: #005fa8;
  box-shadow: 0 3px 6px rgba(0,0,0,0.25);
}

/* MAIN */
.landing-main {
  max-width: 1100px;
  margin: 25px auto;
  padding: 0 16px 40px;
}

/* IMAGE */
.landing-photo {
  text-align: center;
  margin-bottom: 25px;
}

.landing-photo img {
  max-width: 100%;
  border-radius: 10px;
  display: block;
  margin: auto;
  box-shadow: 0 6px 18px rgba(0,0,0,0.25);
}

/* STYLISH BORDER BOX */
.bordered-box {
  border: 2px solid #0078D4;
  border-radius: 12px;
  padding: 20px;
  background: #f9fbff;
  box-shadow: 0 4px 14px rgba(0,0,0,0.15);
}

.landing-text {
  font-size: 1rem;
  line-height: 1.65;
}

.landing-text p + p {
  margin-top: 14px;
}

/* MOBILE */
@media (max-width: 600px) {
  .landing-header h1 {
    font-size: 1.1rem;
    padding-right: 90px; /* space so heading doesn’t clash with button */
  }

  .open-btn {
    padding: 6px 14px;
    font-size: 0.8rem;
  }

  .landing-main {
    margin-top: 18px;
    padding: 0 12px 30px;
  }

  .landing-text {
    font-size: 0.95rem;
  }

  .bordered-box {
    padding: 16px;
  }
}