* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: #0e0f12;
  color: #e5e7eb;
}

/* NAV */
.navbar {
  background: rgba(14,15,18,.75);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid #1f2933;
}

.nav-inner {
  max-width: 1100px;
  margin: auto;
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  gap: 10px;
  align-items: center;
  text-decoration: none;
  color: #e5e7eb;
  font-weight: 700;
}

.nav-logo-img {
  width: 26px;
}

.nav-links a {
  margin-left: 22px;
  text-decoration: none;
  color: #9ca3af;
}

.nav-links a.active {
  color: #5eead4;
}

/* CONTACT */
.contact-section {
  min-height: calc(100vh - 72px);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.contact-card {
  background: #15171c;
  border: 1px solid #1f2933;
  border-radius: 20px;
  padding: 36px;
  width: 100%;
  max-width: 480px;
}

.subtitle {
  color: #9ca3af;
  margin-bottom: 24px;
}

/* FORM */
.field {
  display: flex;
  flex-direction: column;
  margin-bottom: 16px;
}

.field label {
  margin-bottom: 6px;
  font-size: 0.9rem;
}

input, textarea {
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid #1f2933;
  background: #0e0f12;
  color: #e5e7eb;
}

.send-btn {
  width: 100%;
  padding: 12px;
  border-radius: 12px;
  background: #5eead4;
  color: #0e0f12;
  font-weight: 600;
  border: none;
  cursor: pointer;
  opacity: 0.6;
}

.send-btn:not(:disabled) {
  opacity: 1;
}

.send-btn:disabled {
  cursor: not-allowed;
}

/* MODAL */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.7);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 999;
}

.modal.show {
  display: flex;
}

.modal-content {
  background: #15171c;
  border-radius: 20px;
  padding: 32px;
  text-align: center;
  width: 90%;
  max-width: 420px;
  animation: pop 0.4s ease;
}

@keyframes pop {
  from { transform: scale(.9); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.checkmark {
  width: 60px;
  height: 60px;
  background: #5eead4;
  color: #0e0f12;
  border-radius: 50%;
  font-size: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.close-btn {
  margin-top: 20px;
  padding: 10px 18px;
  border-radius: 10px;
  background: #5eead4;
  border: none;
  font-weight: 600;
  cursor: pointer;
}

/* ENTRY */
.animate-in {
  animation: fadeUp .4s ease forwards;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}