/* ========== GLOBAL (từ style.css gốc) ========== */
/* [Global typography, layout] — từ file style.css ban đầu */
body {
  font-family: "Quicksand", system-ui, -apple-system, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  font-weight: 500;
  font-size: 16px;
  line-height: 1.6;
  color: #111111;
  background: #ffffff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  padding: 0;
  margin: 0;
  display: flex;
  justify-content: center;
}

/* [Container] — từ file style.css ban đầu */
.container {
  width: 100%;
  max-width: 420px;
  padding: 20px;
}

/* [Header] — từ file style.css ban đầu */
header {
  text-align: center;
  margin-bottom: 18px;
  padding-top: 6px;
}
header .author {
  color: #EC407A;
  font-weight: 700;
  letter-spacing: 1px;
  font-size: 18px;
  margin-bottom: 6px;
}
header h1 {
  color: #348C90;
  font-size: 36px;
  line-height: 1;
  font-weight: 900;
  margin-bottom: 6px;
  letter-spacing: 1px;
}
header h2 {
  color: #348C90;
  font-size: 18px;
  font-weight: 500;
  line-height: 1.25;
  margin: 0 auto;
  max-width: 360px;
}

/* [Intro] — từ file style.css ban đầu */
.intro {
  margin: 16px 0 18px 0;
  padding: 0 6px;
}
.intro p {
  text-align: left;
  font-size: 15px;
  color: #111111;
  line-height: 1.6;
}

/* [Unlock] — từ file style.css ban đầu */
.unlock {
  margin: 18px 0 22px 0;
  text-align: center;
}
.unlock label {
  display: block;
  font-weight: 700;
  margin-bottom: 8px;
  font-size: 16px;
  color: #111111;
}
.unlock .code-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.unlock input[type="text"],
.unlock input[type="password"] {
  width: 68%;
  max-width: 68%;
  min-width: 160px;
  padding: 10px 12px;
  font-size: 16px;
  border: 2px solid #348C90;
  border-radius: 8px;
  outline: none;
  font-family: "Quicksand", system-ui, -apple-system, "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}
.unlock input::placeholder { color: #999999; }
.unlock button {
  padding: 10px 18px;
  background: #348C90;
  color: #fff;
  border: none;
  border-radius: 22px;
  font-weight: 700;
  cursor: pointer;
  font-size: 16px;
}
.unlock button:active { transform: translateY(1px); }

@media (max-width: 360px) {
  .unlock input { width: 60%; }
  .unlock button { padding: 10px 14px; font-size: 15px; }
}

/* [Main/Article/Video] — từ file style.css ban đầu */
main { margin-top: 6px; padding-bottom: 40px; }
article { margin-bottom: 22px; }
article h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: #111111;
}
.video {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  height: 0;
  background: #000;
  margin-bottom: 12px;
  border-radius: 6px;
  overflow: hidden;
}
.video iframe,
.video .placeholder {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* [Quiz Links] — từ file style.css ban đầu */
.quiz-links { margin-top: 8px; padding-left: 6px; }
.quiz-links li { list-style: none; margin-bottom: 6px; }
.quiz-links a {
  text-decoration: none;
  color: #111;
  font-weight: 700;
  font-size: 15px;
}
.quiz-links a:hover { text-decoration: underline; }

/* [Footer] — từ file style.css ban đầu */
footer { margin-top: 18px; font-size: 13px; color: #888; text-align: center; padding-bottom: 30px; }

/* [Helpers] — từ file style.css ban đầu */
.center { text-align:center; }
.left { text-align:left; }
.hidden { display:none !important; }

@media (max-width: 320px) {
  header h1 { font-size: 32px; }
  header h2 { font-size: 14px; }
  .unlock input { font-size: 15px; padding: 9px; }
  .unlock button { font-size: 15px; padding: 9px 12px; }
}
@media (orientation: landscape) {
  html, body {
    width: 100%;
    height: auto;
    margin: 0;
    padding: 0;
  }
  .video {
    width: 100%;
    height: auto;
    padding-bottom: 56.25%;
  }
  .video iframe {
    width: 100%;
    height: 100%;
  }
}

/* [Quiz Buttons] — từ style.css ban đầu */
.quiz-buttons {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin: 16px 0 24px 0;
}
.quiz-buttons button {
  padding: 12px 18px;
  width: 90%;
  max-width: 300px;
  background: #348C90;
  color: #fff;
  border: none;
  border-radius: 22px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
}
.quiz-buttons button:nth-child(4) { background: #3da94f; }
.quiz-buttons button:active { transform: translateY(1px); }

/* [Quiz Popup] — từ style.css ban đầu */
.quiz-popup {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  align-items: center;
  justify-content: center;
  z-index: 3000;
}
.quiz-popup.active { display: flex; }
.quiz-popup .popup-content {
  width: 95%; max-width: 500px; height: 90%;
  background: #fff; border-radius: 12px; overflow: hidden;
  display: flex; flex-direction: column;
}
.quiz-popup iframe {
  flex: 1;
  width: 100%; border: none;
}
.close-btn {
  background: #348C90; color: #fff;
  border: none; font-size: 20px;
  cursor: pointer; padding: 8px 12px;
  align-self: flex-end;
}

/* [Resources Grid] — từ style.css ban đầu */
.resources {
  margin: 40px auto 0;
  padding: 20px;
  text-align: center;
}
.resources h2 {
  margin-bottom: 20px;
  font-size: 22px;
  color: #333;
}
.resource-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  max-width: 600px;
  margin: 0 auto;
}
.resource-card {
  background: #f9f9f9;
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}
.resource-card h3 {
  margin-bottom: 12px;
  font-size: 18px;
  color: #222;
}
.btn-download {
  display: inline-block;
  padding: 10px 18px;
  background: #348C90;
  color: #fff;
  border-radius: 20px;
  text-decoration: none;
  font-weight: bold;
  transition: background 0.2s;
}
.btn-download:hover {
  background: #2c6f72;
}

/* [Fanpage Button] — từ style.css ban đầu */
.btn-fanpage {
  display: inline-block;
  padding: 8px 16px;
  background: #1877F2;
  color: #fff;
  border-radius: 8px;
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
  transition: all 0.3s ease;
  animation: pulse 2s infinite;
}
.btn-fanpage:hover {
  transform: scale(1.08);
  background: #0a5adf;
}
@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

/* [Footer Offer] — từ style.css ban đầu */
.footer-offer {
  text-align: center;
  font-size: 17px;
  line-height: 1.8;
  color: #333;
  background: #f9f9f9;
  padding: 24px;
  border-radius: 8px;
  margin-top: 20px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}
.footer-offer strong {
  color: #d32f2f;
  font-weight: 700;
}
.footer-offer span {
  display: block;
  margin-top: 10px;
  font-weight: 600;
  color: #1877f2;
  font-size: 18px;
}

/* ========== EXTRACTED FROM index.html INLINE STYLES ========== */
/* [Benefits section] — chuyển từ <style> trong index.html */
.benefit-list { margin-top: 20px; }
.benefit-item {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
  transition: transform 0.2s ease;
}
.benefit-item:hover { transform: translateX(5px); }
.icon {
  flex-shrink: 0;
  font-size: 1.4em;
  line-height: 1;
  color: #348C90;
}

/* [Unlock placeholder italic] — chuyển từ <style> trong index.html */
#code::placeholder {
  font-style: italic;
  color: #888;
}

/* [Featured quote] — chuyển từ <style> trong index.html */
.featured-quote blockquote {
  border-left: 4px solid #348C90;
  margin: 0;
  padding-left: 15px;
  font-style: italic;
  color: #333;
  font-size: 16px;
  line-height: 1.6;
}
.featured-quote blockquote footer {
  margin-top: 10px;
  font-weight: bold;
  font-style: normal;
  color: #555;
}

/* [Chat bubble review styles] — chuyển từ <style> trong index.html */
.chat-bubble {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 10px 0;
  max-width: 420px;
  font-family: Arial, sans-serif;
}
.chat-avatar {
  width: 40px;
  height: 40px;
  min-width: 40px;
  min-height: 40px;
  box-sizing: border-box;
  padding: 0;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #348C90;
  color: #fff;
  font-weight: 700;
  font-size: 13px;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
}
.chat-content {
  background: #f0f2f5;
  padding: 10px 14px;
  border-radius: 15px;
  color: #050505;
  line-height: 1.4;
  word-break: break-word;
}
.chat-name {
  font-weight: bold;
  margin-bottom: 4px;
  font-size: 14px;
  text-align: left;
}
.chat-text {
  font-size: 14px;
  text-align: left;
}

/* [Vimeo effect overlay] — chuyển từ <style> trong index.html */
.effect-layer {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  overflow: hidden;
}