/* ==========================================================================
   CONVITE VIRTUAL INTERATIVO - ENGENHARIA CIVIL
   Victor Augusto Gosuen Reis
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@500;600;700;900&family=JetBrains+Mono:wght@400;500;700&family=Montserrat:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700&family=Playfair+Display:ital,wght@0,600;0,700;1,400&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap');

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

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

body {
  background-color: var(--bg-primary);
  background-image: var(--pattern-overlay);
  background-size: cover;
  background-attachment: fixed;
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  transition: background-color var(--transition-speed), color var(--transition-speed);
  position: relative;
}

/* Canvas de partículas / estrelas / grid */
#effect-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
}

/* Container responsivo */
.container {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

/* ==========================================================================
   BARRA FLUTUANTE DE SELEÇÃO DE TEMA (THEME SWITCHER)
   ========================================================================== */
.theme-bar-wrapper {
  position: fixed;
  top: 14px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 999;
  width: calc(100% - 24px);
  max-width: 580px;
}

.theme-bar {
  background: var(--bg-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 6px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
  transition: all 0.3s ease;
}

.top-nav-brand {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-left: 6px;
}

.top-brand-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-color);
  box-shadow: 0 0 10px var(--accent-color);
}

.top-brand-text {
  font-size: 0.82rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.5px;
}

.top-nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-gold-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 2.5px;
  color: var(--accent-color);
  margin: 0 auto 12px;
  text-shadow: 0 0 10px var(--accent-glow);
}

.theme-audio-toggle {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  flex-shrink: 0;
}

.theme-audio-toggle:hover {
  transform: scale(1.08);
  border-color: var(--accent-color);
}

.theme-audio-toggle.playing {
  color: var(--accent-color);
  border-color: var(--accent-color);
  box-shadow: 0 0 12px var(--accent-glow);
}

/* ==========================================================================
   HERO / CABEÇALHO PRINCIPAL
   ========================================================================== */
.hero {
  padding-top: 100px;
  padding-bottom: 50px;
  text-align: center;
  position: relative;
}

.badge-engineering {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--badge-bg);
  border: 1px solid var(--badge-border);
  color: var(--badge-text);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.badge-engineering svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
}

/* Foto do Formando */
.photo-wrapper {
  position: relative;
  width: 195px;
  height: 195px;
  margin: 0 auto 28px;
  border-radius: 50%;
  padding: 6px;
  transition: transform 0.4s ease;
  animation: heroFloat 5.5s ease-in-out infinite alternate;
  filter: drop-shadow(0 15px 30px var(--accent-glow));
}

@keyframes heroFloat {
  0% { transform: translateY(0); }
  100% { transform: translateY(-8px); }
}

.photo-wrapper:hover {
  transform: scale(1.05) translateY(-4px);
}

.photo-container {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  overflow: hidden;
  border: var(--photo-border);
  box-shadow: var(--photo-shadow);
  position: relative;
}

.photo-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  display: block;
}

.photo-ring {
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 2px dashed var(--accent-color);
  opacity: 0.65;
  animation: rotateRing 28s linear infinite;
  pointer-events: none;
}

@keyframes rotateRing {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.hero-subtitle {
  font-family: var(--font-accent);
  font-size: 1.15rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-accent);
  margin-bottom: 8px;
  font-weight: 700;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 2.6rem;
  font-weight: 700;
  line-height: 1.15;
  background: linear-gradient(135deg, var(--text-primary) 15%, var(--text-accent) 65%, var(--text-primary) 95%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
  filter: drop-shadow(0 2px 25px rgba(0, 0, 0, 0.4));
}

@media (min-width: 768px) {
  .hero-title {
    font-size: 3.5rem;
  }
  .photo-wrapper {
    width: 225px;
    height: 225px;
  }
}

.hero-degree {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-accent);
  letter-spacing: 3px;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 18px;
}

.hero-degree::before,
.hero-degree::after {
  content: '';
  width: 28px;
  height: 1.5px;
  background: var(--accent-color);
  opacity: 0.6;
}

.hero-quote {
  max-width: 620px;
  margin: 0 auto 34px;
  font-style: italic;
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 14px;
}

/* ==========================================================================
   BOTÕES GERAIS
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 26px;
  border-radius: var(--radius-full);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
}

.btn-primary {
  background: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px var(--accent-glow);
}

.btn-secondary {
  background: var(--btn-secondary-bg);
  border: 1.5px solid var(--btn-secondary-border);
  color: var(--btn-secondary-text);
}

.btn-secondary:hover {
  background: var(--accent-glow);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.82rem;
}

/* ==========================================================================
   CONTAGEM REGRESSIVA (COUNTDOWN)
   ========================================================================== */
.countdown-section {
  padding: 30px 0 50px;
}

.countdown-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 30px 20px;
  text-align: center;
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(10px);
}

.countdown-event-selector {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.countdown-tab {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.25s;
}

.countdown-tab.active {
  background: var(--accent-color);
  color: var(--btn-primary-text);
  border-color: var(--accent-color);
  font-weight: 700;
}

.countdown-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  max-width: 640px;
  margin: 0 auto;
}

.countdown-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.countdown-number {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--text-accent);
  line-height: 1;
  margin-bottom: 6px;
  text-shadow: 0 0 20px var(--accent-glow);
}

.countdown-label {
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-primary);
  opacity: 0.85;
}

@media (min-width: 600px) {
  .countdown-number {
    font-size: 3.2rem;
  }
  .countdown-card {
    padding: 24px 16px;
  }
}
  .countdown-number {
    font-size: 2.8rem;
  }
  .countdown-card {
    padding: 22px 14px;
  }
}

/* ==========================================================================
   SEÇÕES & TÍTULOS
   ========================================================================== */
section {
  padding: 50px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 40px;
}

.section-tag {
  font-family: var(--font-accent);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 8px;
  display: block;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2rem;
  color: var(--text-primary);
  letter-spacing: 0.5px;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  max-width: 540px;
  margin: 8px auto 0;
}

/* ==========================================================================
   PROGRAMAÇÃO / EVENTOS (TIMELINE CARDS)
   ========================================================================== */
.events-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

@media (min-width: 768px) {
  .events-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.event-card {
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  display: flex;
  flex-direction: column;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  backdrop-filter: blur(12px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.event-card:hover {
  transform: translateY(-8px);
  background: var(--bg-card-hover);
  border-color: var(--accent-color);
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.55), 0 0 25px var(--accent-glow);
}

.event-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  align-self: flex-start;
  background: var(--badge-bg);
  border: 1.5px solid var(--badge-border);
  color: var(--badge-text);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
  box-shadow: 0 0 15px var(--accent-glow);
}

.event-date-display {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 14px;
}

.event-day {
  font-family: var(--font-heading);
  font-size: 3.2rem;
  font-weight: 800;
  color: var(--text-accent);
  line-height: 1;
  text-shadow: 0 0 22px var(--accent-glow);
}

.event-month-year {
  display: flex;
  flex-direction: column;
}

.event-month {
  font-weight: 700;
  font-size: 0.95rem;
  text-transform: uppercase;
  color: var(--text-primary);
  line-height: 1.1;
}

.event-year {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.event-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 14px;
  line-height: 1.3;
}

.event-details {
  list-style: none;
  margin-bottom: 24px;
  flex: 1;
}

.event-details li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 0.88rem;
  margin-bottom: 10px;
  line-height: 1.4;
}

.event-details li svg {
  width: 17px;
  height: 17px;
  color: var(--accent-color);
  flex-shrink: 0;
  margin-top: 2px;
}

.event-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: auto;
}

/* ==========================================================================
   GUIA DE TRAJES (DRESS CODE)
   ========================================================================== */
.dresscode-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

@media (min-width: 768px) {
  .dresscode-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.dresscode-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 22px;
  text-align: center;
}

.dresscode-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 14px;
  background: var(--badge-bg);
  border: 1px solid var(--badge-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-color);
}

.dresscode-icon svg {
  width: 26px;
  height: 26px;
}

.dresscode-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.dresscode-type {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.dresscode-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   CONFIRMAÇÃO DE PRESENÇA (RSVP FORM)
   ========================================================================== */
.rsvp-wrapper {
  max-width: 680px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 34px 24px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(12px);
}

@media (min-width: 600px) {
  .rsvp-wrapper {
    padding: 44px 38px;
  }
}

.rsvp-form-group {
  margin-bottom: 20px;
}

.rsvp-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.rsvp-label span {
  color: var(--accent-color);
}

.rsvp-input, .rsvp-select, .rsvp-textarea {
  width: 100%;
  padding: 13px 16px;
  background: var(--bg-input);
  border: 1.5px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: all 0.25s ease;
}

.rsvp-input:focus, .rsvp-select:focus, .rsvp-textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 10px var(--accent-glow);
}

.rsvp-checkboxes {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.rsvp-check-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
}

.rsvp-check-item:hover {
  border-color: var(--accent-color);
}

.rsvp-check-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent-color);
  cursor: pointer;
}

.rsvp-check-text {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.rsvp-guests-box {
  background: rgba(0, 0, 0, 0.15);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-sm);
  padding: 16px;
  margin-top: 12px;
}

/* Feedback de sucesso */
.rsvp-success-message {
  display: none;
  text-align: center;
  padding: 30px 10px;
}

.rsvp-success-message.visible {
  display: block;
}

.rsvp-success-icon {
  width: 64px;
  height: 64px;
  background: var(--badge-bg);
  border: 2px solid var(--accent-color);
  border-radius: 50%;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-color);
}

.rsvp-admin-toggle {
  text-align: center;
  margin-top: 24px;
}

.rsvp-admin-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 0.78rem;
  cursor: pointer;
  text-decoration: underline;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.rsvp-admin-btn:hover {
  opacity: 1;
  color: var(--text-accent);
}

/* ==========================================================================
   MURAL DE RECADOS & HOMENAGENS
   ========================================================================== */
.messages-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 30px 20px;
  margin-top: 20px;
}

.messages-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 24px;
  max-height: 380px;
  overflow-y: auto;
  padding-right: 6px;
}

@media (min-width: 650px) {
  .messages-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

.message-card {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 18px;
}

.message-author {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--text-accent);
  margin-bottom: 4px;
}

.message-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.message-date {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 8px;
  display: block;
}

/* ==========================================================================
   PRESENTE DO ENGENHEIRO (PIX)
   ========================================================================== */
.pix-card {
  max-width: 520px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-md);
}

.pix-key-box {
  display: flex;
  align-items: center;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin: 18px 0;
  gap: 8px;
}

.pix-key-text {
  flex: 1;
  font-family: monospace;
  font-size: 0.9rem;
  color: var(--text-accent);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ==========================================================================
   MODAL ADMIN / PLANILHA DE RESPOSTAS
   ========================================================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(6px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal-overlay.open {
  display: flex;
}

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 760px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.modal-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: var(--text-primary);
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1;
}

.modal-body {
  padding: 20px 24px;
  overflow-y: auto;
  flex: 1;
}

.modal-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.modal-table th, .modal-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
}

.modal-table th {
  color: var(--text-accent);
  font-weight: 700;
}

.modal-table td {
  color: var(--text-secondary);
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}

/* ==========================================================================
   RODAPÉ
   ========================================================================== */
footer {
  padding: 60px 0 40px;
  text-align: center;
  border-top: 1px solid var(--border-color);
  margin-top: 60px;
}

.footer-quote {
  font-family: var(--font-accent);
  font-size: 1.1rem;
  color: var(--text-accent);
  margin-bottom: 12px;
}

.footer-credits {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Toast de Alerta */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--accent-color);
  color: var(--text-primary);
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 2000;
  opacity: 0;
  transition: all 0.35s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}