/* Reset and base styles */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
  background: #f9fbfc;
  color: #21242b;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Gradient Hero with background */
.hero {
  position: relative;
  min-height: 54vh;
  background: linear-gradient(120deg, #358a67 0%, #7652e5 100%);
  background-image: url('https://images.unsplash.com/photo-1464983953574-0892a716854b?auto=format&fit=crop&w=1400&q=80');
  background-size: cover;
  background-position: center;
  color: #fff;
  text-shadow: 0 2px 8px rgba(68,68,68,0.22);
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, #152131b7 30%, #26204391 100%);
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 2rem 1.5rem;
  width: 100%;
}

.hero-content h1 {
  font-size: 2.7rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

.hero-content .icon {
  font-size: 2.2rem;
  margin-right: 0.4em;
  vertical-align: middle;
}

.hero-content p {
  margin: 0.2em 0;
  font-weight: 500;
  font-size: 1.13rem;
  letter-spacing: 0.01em;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4em;
}

.countdown {
  background: rgba(255,255,255,0.14);
  margin-top: 1.3em;
  padding: 0.6em 1.3em;
  border-radius: 25px;
  display: inline-block;
  font-size: 1.15rem;
  animation: fadeIn 0.8s;
  box-shadow: 0 4px 25px rgba(100,60,255,0.09);
}

main {
  flex: 1 0 auto;
  margin-top: -3.7em;
  z-index: 1;
}

.about-card {
  margin: 2em auto 1.2em auto;
  padding: 2rem 1.4rem 1rem 1.4rem;
  max-width: 580px;
  background: #fffdfa;
  border-radius: 22px;
  box-shadow: 0 4px 36px rgba(81,110,255, 0.09);
  text-align: center;
  animation: cardPop 0.8s;
}

.about-card h2 {
  font-size: 1.5em;
  font-weight: 800;
  margin-bottom: 0.5em;
  color: #355c81;
}

.about-card p {
  font-size: 1.15em;
  font-weight: 400;
  margin: 0 0 0.3em 0;
  color: #222b37;
}


.card, .rsvp-section {
  max-width: 430px;
  margin: 1.5em auto 2.5em auto;
  background: #fafbffec;
  border-radius: 20px;
  box-shadow: 0 3px 23px rgba(120,77,255,.08);
  padding: 2em 1.5em 1.5em 1.5em;
  transition: box-shadow 0.2s;
  animation: cardPop 0.95s;

}
.card:hover, .rsvp-section:hover {
  box-shadow: 0 7px 40px rgba(120,63,255,.18);
}

/* RSVP Form */
.rsvp-section h2 {
  font-size: 1.25em;
  color: #7652e5;
  font-weight: 800;
  letter-spacing: 0.02em;
}

#rsvp-form {
  display: flex;
  flex-direction: column;
  gap: 1.35em;
  margin-top: 0.8em;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.2em;
  align-items: flex-start;
  font-weight: 500;
  color: #323344;
}

label {
  font-size: 1.08em;
  margin-bottom: 0.25em;
}

input[type="text"],
input[type="tel"],
select {
  padding: 0.52em .88em;
  font-size: 1.08em;
  border: 1.5px solid #e2e2e2;
  border-radius: 7px;
  outline: none;
  transition: border 0.17s;
  margin-top: 0.07em;
  width: 100%;
}
input:focus {
  border-color: #7652e5;
}

button.submit-btn {
  margin-top: 0.9em;
  background: linear-gradient(90deg,#358a67 40%,#7652e5 100%);
  color: #fff;
  padding: 0.68em 2.3em;
  font-size: 1.13em;
  font-weight: 600;
  letter-spacing: 0.04em;
  border: none;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(120,82,254,.10);
  cursor: pointer;
  transition: background 0.18s,box-shadow 0.18s,transform 0.16s;
  display: flex; align-items: center; gap: 0.7em;
}

button.submit-btn:hover {
  background: linear-gradient(90deg,#7652e5 20%,#358a67 100%);
  transform: scale(1.02) translateY(-2px);
  box-shadow: 0 7px 32px rgba(120, 82, 254, 0.19);
}

.success-message {
  display: none;
  font-size: 1.09em;
  margin-top: 1.2em;
  color: #37b649;
  text-align: center;
  font-weight: 600;
  animation: fadeIn 0.5s;
}

#rsvp-form.submitted .success-message {
  display: block;
}


.error {
  color: #d93141;
  font-size: 0.94em;
  height: 1em;
  margin-top: 0.2em;
  display: inline-block;
}

footer {
  background: linear-gradient(90deg,#355c81 20%, #8d72e1 100%);
  color: #fff;
  padding: 1.19em 0 0.92em 0;
  text-align: center;
  font-size: 1.05em;
  font-weight: 400;
  letter-spacing: 0.01em;
  margin-top: auto;
  box-shadow: 0 -2px 14px rgba(134,110,255,0.09)
}
footer i {
  color: #72fc97;
  margin-right: 0.47em;
  font-size: 1.2em;
  vertical-align: middle;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(30px);}
  to { opacity: 1; transform: translateY(0);}
}

@keyframes cardPop {
  from { opacity:0; transform: scale(.95) translateY(40px);}
  to   { opacity:1; transform: scale(1) translateY(0);}
}

/* Responsive design */
@media (max-width: 700px) {
  .hero-content h1 { font-size: 2rem;}
  main, .about-card, .card, .rsvp-section { padding: 1.1em 0.5em;}
}

@media (max-width: 430px) {
  .about-card, .card, .rsvp-section { margin: 1em 0.3em; }
  .hero-content p, .countdown { font-size: 1em; }
}

::-webkit-scrollbar { width: 10px; background: #e4e2f2;}
::-webkit-scrollbar-thumb { background: #dacfff; border-radius: 8px;}