* {
  box-sizing: border-box;
}

:root {
  --bg: #06111f;
  --bg-2: #0b1c30;
  --panel: rgba(10, 24, 44, 0.88);
  --line: rgba(88, 166, 255, 0.22);
  --text: #eaf4ff;
  --muted: #9fb5cc;
  --primary: #1da1f2;
  --primary-2: #36c2ff;
  --success: #19c37d;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  --radius: 22px;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, system-ui, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(39, 122, 255, 0.18), transparent 25%),
    radial-gradient(circle at top right, rgba(29, 161, 242, 0.14), transparent 25%),
    linear-gradient(180deg, var(--bg), #040b15 100%);
  display: grid;
  place-items: center;
  padding: 90px 24px 24px;
  overflow-x: hidden;
}

.tech-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(72, 125, 194, 0.14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(72, 125, 194, 0.14) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(circle at center, black 35%, transparent 85%);
}

.watermark {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
  font-size: clamp(38px, 8vw, 110px);
  font-weight: 800;
  letter-spacing: 0.12em;
  color: rgba(110, 180, 255, 0.08);
  text-transform: uppercase;
  user-select: none;
}

.section {
  width: 100%;
  max-width: 980px;
  position: relative;
  z-index: 1;
}

.card {
  background: linear-gradient(180deg, rgba(12, 26, 48, 0.94), rgba(8, 19, 35, 0.92));
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 34px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: auto -10% 75% -10%;
  height: 180px;
  background: radial-gradient(circle, rgba(54, 194, 255, 0.22), transparent 60%);
  filter: blur(25px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #8fcfff;
  margin-bottom: 12px;
}

.eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: #56b9ff;
}

h1 {
  margin: 0 0 10px;
  font-size: clamp(30px, 5vw, 48px);
  line-height: 1.05;
}

.lead {
  margin: 0;
  max-width: 740px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
}

.actions {
  margin-top: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn {
  border: 0;
  border-radius: 16px;
  padding: 14px 22px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease, opacity 0.18s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  color: white;
  background: linear-gradient(90deg, var(--primary), var(--primary-2));
  box-shadow: 0 10px 30px rgba(29, 161, 242, 0.28);
}

.btn-secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(152, 197, 255, 0.18);
}

.hint {
  margin-top: 18px;
  color: #87a2bc;
  font-size: 14px;
}

.modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(1, 7, 16, 0.62);
  backdrop-filter: blur(8px);
  z-index: 10;
}

.modal.show {
  display: flex;
}

.modal-card {
  width: 100%;
  max-width: 760px;
  background: linear-gradient(180deg, rgba(9, 20, 37, 0.97), rgba(6, 15, 28, 0.96));
  border: 1px solid rgba(91, 165, 255, 0.22);
  border-radius: var(--radius);
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.45);
  padding: 30px;
  position: relative;
  overflow: hidden;
}

.modal-card::after {
  content: "";
  position: absolute;
  width: 280px;
  height: 280px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(52, 174, 255, 0.22), transparent 70%);
  right: -100px;
  top: -100px;
  filter: blur(10px);
  pointer-events: none;
}

.close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 42px;
  height: 42px;
  border: 0;
  border-radius: 12px;
  color: #d9ecff;
  background: rgba(255, 255, 255, 0.05);
  cursor: pointer;
  font-size: 22px;
}

.modal h2 {
  margin: 4px 0 10px;
  text-align: center;
  font-size: clamp(24px, 4vw, 38px);
}

.modal p {
  margin: 0 auto;
  text-align: center;
  color: var(--muted);
  max-width: 580px;
  line-height: 1.6;
}

.coupon-wrap {
  margin: 28px auto 18px;
  max-width: 540px;
}

.coupon-label {
  display: block;
  margin-bottom: 12px;
  text-align: center;
  font-size: 18px;
  font-weight: 700;
}

.coupon-box {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0;
  border: 1px solid rgba(99, 171, 255, 0.25);
  border-radius: 18px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.03);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02);
}

.coupon-code {
  padding: 24px 22px;
  font-size: clamp(24px, 4vw, 42px);
  font-weight: 800;
  text-align: center;
  letter-spacing: 0.04em;
  color: #eaf6ff;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.01)),
    rgba(9, 18, 34, 0.7);
  word-break: break-word;
}

.copy-icon {
  width: 88px;
  border: 0;
  background: linear-gradient(180deg, rgba(49, 140, 255, 0.24), rgba(34, 85, 158, 0.18));
  color: white;
  font-size: 22px;
  cursor: pointer;
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 22px;
}

.btn-whatsapp {
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 220px;
  color: white;
  background: linear-gradient(90deg, #15b86a, #22d483);
}

.btn-copy {
  min-width: 190px;
}

.coupon-note {
  margin-top: 18px;
  font-size: 15px;
  color: #9db6ce;
  text-align: center;
}

.mini-info {
  margin-top: 18px;
  display: grid;
  gap: 10px;
  justify-items: center;
  color: #86a5c5;
  font-size: 14px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(117, 182, 255, 0.15);
}

@media (max-width: 640px) {
  .card,
  .modal-card {
    padding: 22px;
  }

  .coupon-box {
    grid-template-columns: 1fr;
  }

  .copy-icon {
    width: 100%;
    padding: 14px 16px;
  }
}