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

/* ===== GLOBAL ===== */
body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top, rgba(255,255,255,0.04), transparent 60%),
    #111827;
  color: #e5e7eb;
  line-height: 1.7;
}

/* ===== HEADER ===== */
.site-header {
  background: #0b1220;
  padding: 56px 20px;
  text-align: center;
  border-bottom: 1px solid #1f2937;
}

.site-title {
  font-size: 34px;
  color: #f9fafb;
}

.site-subtitle {
  margin-top: 14px;
  color: #9ca3af;
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.trust {
  margin-top: 20px;
  font-size: 14px;
  color: #a7f3d0;
  background: rgba(16,185,129,0.12);
  padding: 8px 16px;
  border-radius: 999px;
  display: inline-block;
}

/* ===== MAIN ===== */
.main {
  max-width: 900px;
  margin: 64px auto;
  padding: 0 20px;
}

/* ===== CARD ===== */
.card {
  background: rgba(11,18,32,0.75);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 18px;
  padding: 36px;
  margin-bottom: 48px;
}

.card-tool {
  text-align: center;
}

/* ===== COLOR PREVIEW ===== */
.color-preview {
  width: 140px;
  height: 140px;
  border-radius: 14px;
  margin: 0 auto 22px;

  background: rgba(15,23,42,0.55);
  backdrop-filter: blur(8px);

  border: 1px solid rgba(255,255,255,0.08);
}

/* ===== COLOR INPUT ===== */
input[type="color"] {
  width: 100%;
  max-width: 240px;
  height: 48px;
  margin: 0 auto 26px;

  background: rgba(15,23,42,0.6);
  backdrop-filter: blur(6px);

  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px;

  cursor: pointer;
}

/* ===== VALUES ===== */
.values {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 22px;
}

.value-box label {
  display: block;
  font-size: 13px;
  color: #9ca3af;
  margin-bottom: 6px;
  text-align: left;
}

.value-box input {
  width: 100%;
  padding: 12px;

  background: rgba(15,23,42,0.55);
  backdrop-filter: blur(6px);

  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;

  color: #e5e7eb;
  font-size: 14px;
}

/* ===== COPY BUTTONS ===== */
.copy-buttons {
  display: flex;
  justify-content: center;
  gap: 12px;
}

.copy-buttons button {
  padding: 10px 18px;

  background: rgba(15,23,42,0.6);
  backdrop-filter: blur(8px);

  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 10px;

  color: #e5e7eb;
  font-size: 14px;
  cursor: pointer;

  transition: background 0.2s ease, box-shadow 0.2s ease;
}

.copy-buttons button:hover {
  background: rgba(15,23,42,0.75);
  box-shadow: 0 6px 18px rgba(0,0,0,0.35);
}

/* ===== FOOTER ===== */
.site-footer {
  background: #0b1220;
  border-top: 1px solid #1f2937;
  padding: 52px 20px;
  text-align: center;
  font-size: 14px;
  color: #9ca3af;
}

.site-footer a {
  margin: 0 12px;
  color: #9ca3af;
  text-decoration: none;
}

.site-footer a:hover {
  color: #e5e7eb;
}

.site-footer hr {
  border: none;
  border-top: 1px solid #1f2937;
  margin-bottom: 22px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 600px) {
  .site-title {
    font-size: 28px;
  }

  .card {
    padding: 26px;
  }

  .values {
    grid-template-columns: 1fr;
  }
}