/* ============================================
   EXPOSTECH 2026 — Convite Digital
   ============================================ */

:root {
  --black: #020617;
  --navy: #0a1628;
  --navy-2: #0f2744;
  --electric: #1e6fff;
  --royal: #2563eb;
  --cyan: #22d3ee;
  --cyan-glow: #67e8f9;
  --white: #f8fafc;
  --white-muted: #cbd5e1;
  --gray: #94a3b8;
  --success: #10b981;
  --error: #ef4444;

  --font-display: 'Orbitron', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;

  --radius: 16px;
  --radius-sm: 12px;
  --shadow-glow: 0 0 40px rgba(30, 111, 255, 0.35);
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: var(--black);
  color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  #particles-canvas { display: none; }
}

#particles-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ========== SCREENS ========== */
.screen {
  position: relative;
  z-index: 1;
  min-height: 100dvh;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.25rem;
  opacity: 0;
  transition: opacity 0.6s ease;
}

.screen.active {
  display: flex;
  opacity: 1;
}

/* ========== TELA MISTÉRIO ========== */
#screen-mystery {
  background: radial-gradient(ellipse at center, #0a1628 0%, #020617 70%);
}

.mystery-content {
  text-align: center;
  max-width: 640px;
  position: relative;
  z-index: 2;
}

.mystery-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(30, 111, 255, 0.25) 0%, transparent 70%);
  border-radius: 50%;
  filter: blur(40px);
  pointer-events: none;
  animation: pulse-glow 4s ease-in-out infinite;
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.6; transform: translate(-50%, -50%) scale(1); }
  50% { opacity: 1; transform: translate(-50%, -50%) scale(1.15); }
}

.mystery-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.7rem, 5.5vw, 2.7rem);
  line-height: 1.25;
  margin-bottom: 1.35rem;
  letter-spacing: 0.04em;
}

.mystery-title span {
  color: var(--cyan-glow);
  text-shadow: 0 0 30px rgba(34, 211, 238, 0.4);
}

.mystery-subtitle {
  font-size: clamp(0.98rem, 2.5vw, 1.18rem);
  color: var(--white-muted);
  margin-bottom: 2.6rem;
  font-weight: 300;
}

/* ========== BOTÕES ========== */
.btn-primary {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1.05rem 2.4rem;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--white);
  background: linear-gradient(135deg, var(--electric), var(--royal));
  border: none;
  border-radius: 999px;
  cursor: pointer;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 24px rgba(30, 111, 255, 0.4);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(30, 111, 255, 0.55);
  outline: none;
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-glow::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--cyan), var(--electric), var(--cyan));
  z-index: -1;
  opacity: 0;
  transition: opacity 0.4s;
  filter: blur(8px);
}

.btn-primary:hover::before {
  opacity: 0.7;
}

.btn-shine {
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.25), transparent);
  transition: left 0.6s;
}

.btn-primary:hover .btn-shine {
  left: 120%;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 1.8rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan);
  background: transparent;
  border: 1px solid rgba(34, 211, 238, 0.45);
  border-radius: 999px;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: rgba(34, 211, 238, 0.1);
  border-color: var(--cyan);
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.2);
  outline: none;
}

/* ========== TELA CONVITE ========== */
#screen-invite {
  display: none;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  padding: 0;
  min-height: 100dvh;
  background: linear-gradient(180deg, #020617 0%, #0a1628 35%, #020617 100%);
}

#screen-invite.active {
  display: flex;
}

.invite-main {
  flex: 1;
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 1.25rem 3.5rem;
}

/* Hero Logo */
.hero-logo-section {
  text-align: center;
  margin-bottom: 3.5rem;
  animation: fadeInUp 0.8s ease both;
}

.logo-wrapper {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.75rem;
}

.logo-ring {
  position: absolute;
  width: 110%;
  height: 110%;
  border: 1px solid rgba(34, 211, 238, 0.25);
  border-radius: 50%;
  animation: ringPulse 6s ease-in-out infinite;
}

.logo-ring-2 {
  width: 125%;
  height: 125%;
  border-color: rgba(30, 111, 255, 0.15);
  animation-delay: -3s;
  animation-duration: 8s;
}

@keyframes ringPulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.04); opacity: 1; }
}

.logo-hero {
  max-width: min(340px, 78vw);
  width: 100%;
  height: auto;
  filter: drop-shadow(0 0 35px rgba(30, 111, 255, 0.45));
  position: relative;
  z-index: 2;
  animation: logoIn 1.1s cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes logoIn {
  0% { opacity: 0; transform: scale(0.75); filter: drop-shadow(0 0 0 transparent) brightness(1.8); }
  100% { opacity: 1; transform: scale(1); filter: drop-shadow(0 0 35px rgba(30, 111, 255, 0.45)) brightness(1); }
}

.hero-title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.9rem, 5.5vw, 2.8rem);
  letter-spacing: 0.1em;
  margin-bottom: 0.4rem;
  background: linear-gradient(90deg, #ffffff, var(--cyan-glow));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-tagline {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.42em;
  color: var(--cyan);
  margin-bottom: 1.5rem;
  font-weight: 500;
}

.hero-quote {
  font-size: clamp(0.98rem, 2.4vw, 1.12rem);
  color: var(--white-muted);
  font-weight: 300;
  font-style: italic;
  line-height: 1.7;
  max-width: 420px;
  margin: 0 auto;
}

/* Seções gerais */
.invite-section {
  margin-bottom: 3.5rem;
  animation: fadeInUp 0.7s ease both;
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

.section-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.45rem, 4.2vw, 2.1rem);
  line-height: 1.3;
  margin-bottom: 1.5rem;
  letter-spacing: 0.02em;
  text-align: center;
}

.section-title span {
  color: var(--cyan-glow);
}

/* Card do convite */
.invite-card {
  background: linear-gradient(160deg, rgba(15, 39, 68, 0.65), rgba(10, 22, 40, 0.85));
  border: 1px solid rgba(30, 111, 255, 0.22);
  border-radius: var(--radius);
  padding: 2rem 1.6rem;
  position: relative;
  overflow: hidden;
}

.invite-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), var(--electric), transparent);
}

.invite-card p {
  margin-bottom: 1.05rem;
  color: var(--white-muted);
  font-size: 1.02rem;
  line-height: 1.65;
}

.invite-card strong {
  color: var(--white);
  font-weight: 600;
}

.invite-closing {
  font-weight: 500 !important;
  color: var(--white) !important;
  margin-top: 1.4rem !important;
  margin-bottom: 0 !important;
  text-align: center;
}

/* ========== INFO DO EVENTO (versão limpa) ========== */
.event-info-card {
  background: linear-gradient(160deg, rgba(15, 39, 68, 0.7), rgba(10, 22, 40, 0.9));
  border: 1px solid rgba(30, 111, 255, 0.25);
  border-radius: var(--radius);
  padding: 1.75rem 1.5rem;
  margin-bottom: 1.75rem;
  position: relative;
  overflow: hidden;
}

.event-info-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}

.event-info-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
}

.event-info-item {
  text-align: center;
  min-width: 140px;
}

.event-info-divider {
  width: 1px;
  height: 48px;
  background: linear-gradient(180deg, transparent, rgba(34, 211, 238, 0.4), transparent);
}

.event-info-label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 0.28em;
  color: var(--cyan);
  margin-bottom: 0.4rem;
}

.event-info-value {
  display: block;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--white);
  line-height: 1.35;
}

.event-info-location {
  text-align: center;
  padding-top: 0.5rem;
  border-top: 1px solid rgba(30, 111, 255, 0.15);
}

.event-info-location .event-info-value {
  margin-bottom: 0.35rem;
  font-size: 1.05rem;
}

.event-info-address {
  display: block;
  font-size: 0.9rem;
  color: var(--white-muted);
  margin-bottom: 1.25rem;
  line-height: 1.5;
}

.btn-map {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.6rem;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
  background: rgba(34, 211, 238, 0.08);
  border: 1px solid rgba(34, 211, 238, 0.4);
  border-radius: 999px;
  text-decoration: none;
  transition: all var(--transition);
}

.btn-map:hover {
  background: rgba(34, 211, 238, 0.15);
  border-color: var(--cyan);
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.2);
}

/* Contador */
.countdown-container {
  text-align: center;
  padding: 1.6rem 1.25rem;
  background: rgba(10, 22, 40, 0.55);
  border: 1px solid rgba(30, 111, 255, 0.2);
  border-radius: var(--radius);
}

.countdown-label {
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.3em;
  color: var(--cyan);
  margin-bottom: 1.15rem;
}

.countdown-grid {
  display: flex;
  justify-content: center;
  gap: 0.7rem;
  flex-wrap: wrap;
}

.countdown-item {
  min-width: 68px;
  padding: 0.8rem 0.45rem;
  background: rgba(30, 111, 255, 0.1);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(30, 111, 255, 0.22);
}

.countdown-number {
  display: block;
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--cyan-glow);
  line-height: 1.1;
}

.countdown-unit {
  font-size: 0.62rem;
  letter-spacing: 0.15em;
  color: var(--gray);
  font-family: var(--font-display);
}

/* Formulário */
.rsvp-intro {
  color: var(--white-muted);
  margin-bottom: 1.75rem;
  font-size: 1.02rem;
  text-align: center;
}

.rsvp-form {
  background: rgba(10, 22, 40, 0.65);
  border: 1px solid rgba(30, 111, 255, 0.22);
  border-radius: var(--radius);
  padding: 1.85rem 1.4rem;
}

.form-group {
  margin-bottom: 1.3rem;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
  color: var(--white);
}

.required {
  color: var(--cyan);
}

.optional {
  color: var(--gray);
  font-weight: 400;
  font-size: 0.85em;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 0.9rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--white);
  background: rgba(2, 6, 23, 0.7);
  border: 1px solid rgba(30, 111, 255, 0.3);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
  appearance: none;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
}

.form-group input::placeholder {
  color: var(--gray);
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2322d3ee' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.radio-group {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  margin-top: 0.45rem;
}

.radio-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  cursor: pointer;
  font-weight: 400 !important;
  color: var(--white-muted) !important;
  padding: 0.7rem 0.95rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition);
}

.radio-label:hover {
  background: rgba(30, 111, 255, 0.08);
}

.radio-label input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.radio-custom {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(34, 211, 238, 0.5);
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
  transition: border-color var(--transition);
}

.radio-label input:checked + .radio-custom {
  border-color: var(--cyan);
}

.radio-label input:checked + .radio-custom::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 10px;
  background: var(--cyan);
  border-radius: 50%;
}

.radio-label:has(input:checked) {
  color: var(--white) !important;
}

.error-msg {
  display: block;
  font-size: 0.8rem;
  color: var(--error);
  margin-top: 0.3rem;
  min-height: 1.1em;
}

.privacy-notice {
  margin: 1.6rem 0;
  padding: 1rem 1.1rem;
  background: rgba(2, 6, 23, 0.5);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(148, 163, 184, 0.12);
}

.privacy-notice p {
  font-size: 0.8rem;
  color: var(--gray);
  line-height: 1.55;
}

.btn-submit {
  width: 100%;
  margin-top: 0.4rem;
}

.btn-loader {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Sucesso / Erro */
.success-panel,
.error-panel {
  text-align: center;
  padding: 2.4rem 1.5rem;
  background: rgba(10, 22, 40, 0.8);
  border-radius: var(--radius);
  border: 1px solid rgba(16, 185, 129, 0.35);
  animation: fadeInUp 0.5s ease;
}

.error-panel {
  border-color: rgba(239, 68, 68, 0.4);
}

.success-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.2rem;
  background: linear-gradient(135deg, var(--success), #059669);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: 700;
  box-shadow: 0 0 30px rgba(16, 185, 129, 0.4);
  animation: successPop 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes successPop {
  0% { transform: scale(0); opacity: 0; }
  70% { transform: scale(1.15); }
  100% { transform: scale(1); opacity: 1; }
}

.success-panel h3,
.error-panel h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
  color: var(--success);
}

.error-panel h3 {
  color: var(--error);
}

.success-panel p {
  color: var(--white-muted);
  margin-bottom: 0.7rem;
}

.success-closing {
  margin-top: 1.4rem !important;
  font-weight: 500;
  color: var(--white) !important;
}

/* Compartilhar */
.section-share {
  text-align: center;
}

.share-card {
  background: linear-gradient(160deg, rgba(15, 39, 68, 0.55), rgba(10, 22, 40, 0.75));
  border: 1px solid rgba(30, 111, 255, 0.2);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
}

.share-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: 0.35rem;
}

.share-text {
  color: var(--white-muted);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.share-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  justify-content: center;
}

.btn-share {
  min-width: 160px;
}

.copy-feedback {
  margin-top: 1rem;
  font-size: 0.9rem;
  color: var(--cyan);
  font-weight: 500;
}

/* Rodapé */
.invite-footer {
  text-align: center;
  padding: 2.75rem 1.5rem 2.25rem;
  border-top: 1px solid rgba(30, 111, 255, 0.12);
  background: rgba(2, 6, 23, 0.55);
}

.footer-logo {
  height: 52px;
  width: auto;
  margin-bottom: 1.15rem;
  opacity: 0.9;
}

.footer-text {
  display: flex;
  flex-direction: column;
  gap: 0.22rem;
  font-size: 0.85rem;
  color: var(--gray);
  margin-bottom: 1.4rem;
}

.footer-text strong {
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--white);
  letter-spacing: 0.1em;
}

.footer-text span:first-of-type {
  font-family: var(--font-display);
  font-size: 0.68rem;
  letter-spacing: 0.25em;
  color: var(--cyan);
  margin-bottom: 0.45rem;
}

.footer-privacy {
  font-size: 0.8rem;
  color: var(--gray);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition);
}

.footer-privacy:hover {
  color: var(--cyan);
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(2, 6, 23, 0.85);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.modal:not([hidden]) {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--navy);
  border: 1px solid rgba(30, 111, 255, 0.3);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  max-width: 520px;
  max-height: 85dvh;
  overflow-y: auto;
  position: relative;
  animation: fadeInUp 0.35s ease;
}

.modal-close {
  position: absolute;
  top: 0.75rem;
  right: 1rem;
  background: none;
  border: none;
  color: var(--gray);
  font-size: 1.75rem;
  cursor: pointer;
  line-height: 1;
  padding: 0.25rem;
}

.modal-close:hover {
  color: var(--white);
}

.modal-content h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin-bottom: 1.2rem;
  letter-spacing: 0.05em;
  color: var(--cyan);
}

.modal-content p,
.modal-content li {
  font-size: 0.9rem;
  color: var(--white-muted);
  margin-bottom: 0.8rem;
  line-height: 1.55;
}

.modal-content ul {
  padding-left: 1.25rem;
  margin-bottom: 1rem;
}

/* Responsivo */
@media (max-width: 600px) {
  .invite-main {
    padding: 2.25rem 1rem 3rem;
  }
  .invite-card,
  .rsvp-form,
  .event-info-card {
    padding: 1.5rem 1.15rem;
  }
  .event-info-row {
    gap: 1rem;
  }
  .event-info-divider {
    display: none;
  }
  .countdown-number {
    font-size: 1.4rem;
  }
  .countdown-item {
    min-width: 58px;
  }
  .logo-hero {
    max-width: min(280px, 82vw);
  }
}

[hidden] {
  display: none !important;
}