:root {
  /* Branding */
  --primary: rgb(125, 103, 237);
  --primary-hover: rgb(105, 83, 217);
  --primary-glow: rgba(125, 103, 237, 0.3);
  
  /* Status */
  --success: #22c55e;
  --error: #f87171;
  --white: #ffffff;

  /* Modo Dark (Padrão) */
  --bg-body: radial-gradient(circle at top right, #1e1b4b, #0f172a);
  --bg-container: rgba(30, 41, 59, 0.75);
  --bg-input: #0f172a;
  --bg-modal-content: #1e293b; 
  --text-main: #f1f5f9;
  --text-sub: #94a3b8;
  --border: rgba(255, 255, 255, 0.1);
  --btn-secondary: #334155;
  --btn-secondary-hover: #475569;
}

[data-theme="light"] {
  /* Modo Light */
  --bg-body: radial-gradient(circle at top right, #f8fafc, #e2e8f0);
  --bg-container: rgba(255, 255, 255, 0.9);
  --bg-input: #ffffff;
  --bg-modal-content: #ffffff; 
  --text-main: #1e293b;
  --text-sub: #64748b;
  --border: rgba(0, 0, 0, 0.1);
  --btn-secondary: #f1f5f9;
  --btn-secondary-hover: #e2e8f0;
}

/* =========================================
   RESET E BASE
   ========================================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg-body);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 60px 20px;
  transition: background 0.4s ease, color 0.4s ease;
  overflow-x: hidden;
}

.hidden { display: none !important; }

/* =========================================
   CAPA (HERO SECTION)
   ========================================= */
.hero-section {
  width: 100%;
  max-width: 800px;
  margin-bottom: 80px;
  text-align: center;
  animation: fadeIn 0.8s ease-out;
}

.hero-badge {
  background: var(--primary-glow);
  color: var(--primary);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 12px;
  font-weight: 700;
  display: inline-block;
  margin-bottom: 24px;
  border: 1px solid var(--primary);
}

.hero-title {
  font-size: clamp(2.2rem, 8vw, 3.8rem);
  line-height: 1.1;
  margin-bottom: 20px;
  font-weight: 900;
}

.hero-title span {
  color: var(--primary);
  text-shadow: 0 0 30px var(--primary-glow);
}

.hero-subtitle {
  color: var(--text-sub);
  font-size: 18px;
  max-width: 550px;
  margin: 0 auto 32px;
  line-height: 1.6;
}

.hero-btn {
  display: inline-block;
  padding: 16px 36px;
  background: var(--primary);
  color: white;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 700;
  transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 10px 25px var(--primary-glow);
}

.hero-btn:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 30px var(--primary-glow);
}

/* =========================================
   APP CONTAINER (GLASSMORPHISM)
   ========================================= */
.container {
  background: var(--bg-container);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 40px 30px;
  border-radius: 28px;
  width: 100%;
  max-width: 420px;
  border: 1px solid var(--border);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.3);
  text-align: center;
  position: relative;
  transition: all 0.4s ease;
  overflow: hidden; 
  word-wrap: break-word;
}

.app-header {
  margin-bottom: 24px;
}

.main-logo {
  width: 70px;
  height: 70px;
  object-fit: contain;
  margin-bottom: 12px;
  filter: drop-shadow(0 8px 12px var(--primary-glow));
}

.highlight { color: var(--primary); }

.subtitle {
  font-size: 14px;
  color: var(--text-sub);
  margin-bottom: 20px;
}

/* BOTÃO DE TEMA */
.theme-wrapper {
  position: absolute;
  top: 20px;
  right: 20px;
}

.btn-theme {
  background: var(--btn-secondary);
  border: 1px solid var(--border);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.3s;
}

.btn-theme:hover {
  border-color: var(--primary);
  transform: scale(1.1) rotate(15deg);
}

.icon-sun, .icon-moon { display: none; font-size: 18px; }
[data-theme="dark"] .icon-sun { display: block; }
[data-theme="light"] .icon-moon { display: block; }

/* =========================================
   INPUTS, SELECTS E LABELS
   ========================================= */
label {
  font-size: 11px;
  font-weight: 800;
  display: block;
  margin: 18px 0 6px;
  text-align: left;
  color: var(--text-sub);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

input, select {
  width: 100%;
  padding: 14px 16px;
  margin-bottom: 12px;
  border-radius: 14px;
  border: 2px solid var(--border);
  outline: none;
  background: var(--bg-input);
  color: var(--text-main);
  font-size: 15px;
  transition: all 0.3s ease;
}

input:focus, select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-glow);
}


/* =========================================
   BOTÕES DO APP
   ========================================= */
.actions { display: flex;
   gap: 12px; 
   margin-top: 10px; 
  }

button {
  width: 100%;
  padding: 15px;
  border-radius: 14px;
  border: none;
  background: var(--primary);
  color: var(--white);
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  transition: 0.3s;
}

button:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
}

.secondary {
  background: transparent;
  border: 2px solid var(--border);
  color: var(--text-main);
}

.secondary:hover {
  background: var(--btn-secondary);
  border-color: var(--primary);
}

/* =========================================
   RESULTADO E HISTÓRICO
   ========================================= */

#result {
    margin-top: 15px;
    padding-bottom: 20px; 
  }
  
#result canvas {
  width: 220px !important;
  height: 220px !important;
  padding: 12px;
  background: #fff;
  border-radius: 20px;
  box-shadow: 0 15px 30px rgba(0,0,0,0.1);
  animation: fadeIn 0.5s ease;
  margin: 10px auto;
}
canvas, img {
    max-width: 100%;
    height: auto !important;
}
.qr-actions { display: flex; gap: 10px; margin-top: 20px; }

.btn-action {
  flex: 1;
  padding: 12px;
  font-size: 13px;
  font-weight: 700;
  background: var(--btn-secondary);
  border-radius: 12px;
  color: var(--text-main);
  text-decoration: none;
  text-align: center;
  border: 1px solid var(--border);
  transition: 0.2s;
  
}

.btn-action:hover {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

.divider {
  margin: 30px 0;
  border: 0;
  border-top: 1px dashed var(--border);
}
.history-header h3 {
    text-align: left;
    color: var(--text-sub); 
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin: 15px 0 10px 5px; 
}
.history-item {
  background: var(--bg-input);
  padding: 14px;
  border-radius: 12px;
  margin-top: 10px;
  margin-bottom: 8px;
  cursor: pointer;
  font-size: 13px;
  border: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  transition: 0.3s;
}

.history-item:hover {
  border-color: var(--primary);
  transform: translateX(6px);
  background: var(--btn-secondary-hover);
}

/* =========================================
   MODAL (TEMA)
   ========================================= */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.modal-content {
  background: var(--bg-modal-content); 
  padding: 20px;
  border-radius: 12px;
  text-align: center;
  color: var(--text-main); 
  width: 280px;
  border: 1px solid var(--border);
}

.modal-actions {
  margin-top: 15px;
  display: flex;
  justify-content: space-between;
}

.modal-actions button {
  padding: 8px 14px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  width: auto; 
}

/* =========================================
   ANIMAÇÕES E FEEDBACK
   ========================================= */
.loader {
  border: 4px solid var(--border);
  border-top: 4px solid var(--primary);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: 20px auto;
}

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes fadeIn { from { opacity: 0; transform: translateY(15px); } to { opacity: 1; transform: translateY(0); } }




  .field-group {
    display: flex;
    flex-direction: column;
    width: 100%;
    text-align: left;
  }


  /* Estilo do aviso "Inclua o código do país" */
  .field-label {
    font-size: 11px;
    color: #94a3b8;
    margin: 8px;
    line-height: 1.2;
  }


/* Container do seletor personalizado */
.custom-select-wrapper {
    position: relative;
    user-select: none;
    width: 100%;
    margin-bottom: 10px;
}

.custom-select {
    position: relative;
    display: flex;
    flex-direction: column;
    border: 2px solid var(--border);
    border-radius: 14px;
    background: var(--bg-input);
    cursor: pointer;
}

.custom-select-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    font-size: 15px;
    font-weight: 500;
}

.arrow {
    width: 10px;
    height: 10px;
    border-left: 2px solid var(--text-sub);
    border-bottom: 2px solid var(--text-sub);
    transform: rotate(-45deg);
    transition: all 0.3s;
    margin-bottom: 5px;
}

/* Quando o seletor está aberto */
.custom-select.open .arrow {
    transform: rotate(135deg);
    margin-bottom: -5px;
}

.custom-options {
    position: absolute;
    display: block;
    top: 105%;
    left: 0;
    right: 0;
    border: 1px solid var(--border);
    background: var(--bg-modal-content);
    border-radius: 14px;
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-10px);
    transition: all 0.3s;
    max-height: 250px;
    overflow-y: auto;
}

.custom-select.open .custom-options {
    opacity: 1;
    visibility: visible;
    pointer-events: all;
    transform: translateY(0);
}

.custom-option {
    position: relative;
    display: block;
    padding: 12px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-main);
    transition: all 0.2s;
    text-align: left;
}

.custom-option:hover {
    background: var(--primary-glow);
    color: var(--primary);
}

.custom-option.selected {
    background: var(--primary);
    color: white;
}


/* =========================================
               RESPONSIVIDADE 
   ========================================= */

/* Celular (Retrato) */
@media (max-width: 480px) {
  body { padding: 20px 10px; }
  
  .container { 
    padding: 25px 20px; 
    width: 95%; 
  }

  .hero-title { font-size: 1.8rem; }
  
  .actions, .qr-actions { 
    flex-direction: column; 
    gap: 8px; 
  }
}
#result {
    margin-top: 10px;
    padding-bottom: 20px; 
  }

  #result canvas {
    max-width: 130px !important;
    max-height: 130px !important;
    margin: 10px auto;
  }

/* Celular (Paisagem / Landscape) */
@media (max-height: 500px) and (orientation: landscape) {
  body { 
    padding: 10px; 
    display: block; 
  }

  .hero-section { 
    display: none; 
  }

  .container {
    margin: 10px auto;
    max-width: 85%; 
    padding: 15px 25px;
  }
  .actions {
    display: flex;
    flex-direction: row; 
    gap: 4px;
    margin-top: 15px;
    width: 100%;
  }
  .actions button {
    flex: 1; 
    padding: 6px 50px; 
    font-size: 8px;    
}

  button.secondary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px; 
    padding: 12px; 
    min-height: 44px; 
  }
  #fields {
    display: grid;
    grid-template-columns: 1fr 1fr; 
    gap: 12px;
    align-items: end; 
  }
  #fields input {
    margin-bottom: 12px; 
   }

  .field-group {
    display: flex;
    flex-direction: column;
    width: 100%;
    text-align: left;
    margin-bottom: 15px;
  }

  /* Estilo do aviso "Inclua o código do país" */
  .field-label {
    font-size: 11px;
    color: #94a3b8;
    margin: 8px;
    line-height: 1.2;
  }

  .full-width, 
  textarea, 
  #message { 
    grid-column: span 2; 
  }

  input, select, textarea {
    width: 100%;
    padding: 8px 12px;
    font-size: 14px;
    box-sizing: border-box;
    margin-bottom: 5px!important; 
  }

  .qr-actions {
    display: flex;
    flex-direction: row;
    gap: 10px;
    margin-top: 15px;
  }
  #result {
    margin-top: 10px;
    padding-bottom: 20px; 
  }
}
  #result canvas {
    max-width: 130px !important;
    max-height: 130px !important;
    margin: 10px auto;
  }