/* RESET */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, Helvetica, sans-serif;
}

/* BACKGROUND BLUR */
body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: url("assets/bg.jpg") no-repeat center center fixed;
  background-size: cover;
  filter: blur(6px);
  transform: scale(1.08);
  z-index: -2;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: -1;
}

/* CONTAINER */
.phone {
  max-width: 420px;
  margin: 0 auto;
  color: #fff;
}

/* HEADER */
.header {
  text-align: center;
  padding: 20px 10px;
}

.logo {
  max-width: 150px;
}

.subtitle {
  margin-top: 6px;
  font-size: 12px;
  letter-spacing: 2px;
  color: #ccc;
}

/* OFFICIAL WEBSITE */
.silver-top {
  padding: 10px;
}

.official-btn {
  width: 100%;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  text-decoration: none;

  background: linear-gradient(
    120deg,
    #1e90ff,
    #00e5ff,
    #7b3fe4
  );
  background-size: 300% 300%;
  animation: wave 6s ease-in-out infinite;

  box-shadow:
    0 0 10px rgba(0,191,255,0.7),
    0 0 22px rgba(123,63,228,0.6);
}

.official-text {
  max-width: 72%;
  height: auto;
  pointer-events: none;
}

/* BANNER */
.banner img {
  width: 100%;
  border-radius: 14px;
  margin: 16px 0;
}

/* GRID */
.silver-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  padding: 10px;
}

/* NEON BOX */
.silver-box {
  height: 72px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;

  background: linear-gradient(
    120deg,
    #1e90ff,
    #00e5ff,
    #7b3fe4,
    #1e90ff
  );
  background-size: 400% 400%;
  animation: wave 6s ease infinite;

  box-shadow:
    0 0 18px rgba(0,191,255,0.9),
    0 0 40px rgba(123,63,228,0.8);

  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

/* FULL WIDTH */
.silver-box.span {
  grid-column: span 2;
}

/* PNG TEXT */
.silver-box img {
  max-width: 78%;
  height: auto;
  pointer-events: none;
}

/* HOVER */
.silver-box:hover,
.official-btn:hover {
  transform: scale(1.04);
  box-shadow:
    0 0 28px rgba(0,191,255,1),
    0 0 56px rgba(123,63,228,1);
}

/* ANIMATION */
@keyframes wave {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* FOOTER */
.footer {
  text-align: center;
  font-size: 11px;
  color: #ccc;
  padding: 18px 0;
}