/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: #f0f2f5;

  /* Light glowing grid lines */
  background-image:
    linear-gradient(to right, rgba(27, 131, 254, 0.1) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(27, 131, 254, 0.1) 1px, transparent 1px);

  background-size: 50px 50px;
  background-attachment: fixed;

  color: #333;
}

/* Optional: subtle animated glow movement */
@keyframes glowGridLight {
  0% { background-position: 0 0, 0 0; }
  50% { background-position: 25px 25px, 25px 25px; }
  100% { background-position: 0 0, 0 0; }
}

body {
  animation: glowGridLight 15s linear infinite;
}

/* Optional: soft blur to make it look glowing */
body::before {
  content: '';
  position: fixed;
  top:0;
  left:0;

  width:100%;
  height:100%;

  pointer-events: none;

  background:
    linear-gradient(to right, rgba(27, 131, 254, 0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(27, 131, 254, 0.06) 1px, transparent 1px);

  background-size: 50px 50px;

  filter: blur(2px);

  z-index: -1;

  animation: glowGridLight 20s linear infinite;
}

/* Logo Container */
.logo-container {
  text-align: center;
  margin-bottom: 1rem;
  padding-top: 1rem;
}

/* Logo Image */
.logo {
  max-width: 180px;
  width: 40%;
  height: auto;

  display: inline-block;

  border-radius: 12px;

  box-shadow: 0 4px 15px rgba(0,0,0,0.08);

  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.logo:hover {
  transform: scale(1.05);

  box-shadow: 0 8px 25px rgba(0,0,0,0.12);
}

@media (max-width: 768px) {
  .logo {
    max-width: 140px;
    width: 50%;
  }
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

.header {
  text-align: center;
  margin-bottom: 3rem;
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;

  background: #1B83FE;
  color: #fff;

  padding: 0.4rem 1rem;

  border-radius: 50px;

  font-weight: 500;

  margin-bottom: 1rem;
}

.header h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.header h1 span {
  color: #1B83FE;
}

.header p {
  font-size: 1rem;
  color: #555;

  max-width: 700px;
  margin: 0 auto;
}

/* Grid Layout */
.grid {
  display: grid;

  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));

  gap: 1.5rem;
}

/* Card Link */
.card-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

/* Card */
.card {
  background: #fff;

  border-radius: 16px;

  padding: 2rem 1.5rem;

  border: 1px solid #e0e0e0;

  transition: all 0.3s ease;

  display: flex;
  flex-direction: column;
  justify-content: space-between;

  position: relative;

  overflow: hidden;

  cursor: pointer;
}

/* Hover effect with branding glow */
.card:hover {
  transform: translateY(-5px) scale(1.02);

  border-color: #1B83FE;

  box-shadow: 0 0 15px rgba(27, 131, 254, 0.25);
}

/* Card Icon */
.card .icon {
  font-size: 3rem;

  margin-bottom: 1rem;

  display: inline-block;

  transition: transform 0.3s ease, color 0.3s ease;
}

.card:hover .icon {
  transform: scale(1.1) rotate(5deg);

  color: #1B83FE;
}

/* Card Title */
.card h3 {
  font-size: 1.35rem;
  color: #111;

  margin-bottom: 0.8rem;
}

/* Card Text */
.card p {
  font-size: 0.95rem;

  color: #555;

  line-height: 1.5;

  flex-grow: 1;
}

/* Highlighted Card */
.card.highlight {
  border: 2px solid #1B83FE;

  background: linear-gradient(145deg, #f4f9ff, #e8f3ff);

  box-shadow: 0 0 18px rgba(27, 131, 254, 0.18);
}

/* Highlight Hover */
.card.highlight:hover {
  border-color: #1B83FE;

  box-shadow: 0 0 28px rgba(27, 131, 254, 0.35);
}

/* Premium Card */
.card.premium {
  border: 2px solid gold;

  background: linear-gradient(145deg, #fff8e1, #ffe680);

  box-shadow: 0 0 15px rgba(255, 215, 0, 0.25);
}

.card.premium:hover {
  transform: translateY(-5px) scale(1.03);

  box-shadow: 0 0 25px rgba(255, 215, 0, 0.35);
}

/* Utility Card */
.card.utility {
  background-color: #f3f9ff;

  border: 1px solid #cfe6ff;
}

/* Feature Badge */
.feature-badge {
  position: absolute;

  top: 14px;
  right: 14px;

  background: #1B83FE;
  color: #fff;

  font-size: 0.7rem;
  font-weight: 700;

  padding: 0.35rem 0.7rem;

  border-radius: 50px;

  letter-spacing: 0.5px;

  box-shadow: 0 4px 12px rgba(27, 131, 254, 0.25);
}
/* ===== User Manual Section (appended) ===== */
.manual-wrap {
  width: 100%;
  padding: 40px 2rem 80px;
}

.manual-container {
  max-width: 1200px;
  margin: 0 auto;
  background: #ffffff;
  border-radius: 12px;
  padding: 40px 48px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  border: 1px solid rgba(27,131,254,0.12);
}

.manual-container h2 {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 16px;
  color: #0f172a;
}

.manual-container h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 32px 0 12px;
  color: #0f172a;
}

.manual-container h4 {
  font-size: 16px;
  font-weight: 600;
  margin: 20px 0 10px;
  color: #1B83FE;
}

.manual-container p {
  line-height: 1.7;
  margin-bottom: 14px;
  color: #333;
}

.manual-container ul,
.manual-container ol {
  margin: 0 0 16px 22px;
  line-height: 1.7;
}

.manual-container li {
  margin-bottom: 6px;
}

.manual-container hr {
  border: none;
  border-top: 1px solid #e5e7eb;
  margin: 32px 0;
}

.manual-container code {
  background: #f1f5f9;
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  color: #1B83FE;
}

.manual-container .screenshot-frame {
  margin: 16px 0;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 6px rgba(0,0,0,0.05);
}

.manual-container .screenshot-frame img {
  display: block;
  width: 100%;
  height: auto;
}

@media (max-width: 640px) {
  .manual-container {
    padding: 24px 20px;
  }
}

/* ===== FAQ ===== */
.faq-item {
  padding: 16px 0;
  border-bottom: 1px solid #e5e7eb;
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-item h4 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 600;
  color: #0f172a;
}

.faq-item p {
  margin: 0;
  color: #333;
}

/* ===== Changelog ===== */
.changelog-entry {
  padding: 18px 0;
  border-bottom: 1px solid #e5e7eb;
}

.changelog-entry:last-child {
  border-bottom: none;
}

.changelog-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.changelog-version {
  font-size: 17px;
  font-weight: 700;
  color: #1B83FE;
}

.changelog-date {
  font-size: 13px;
  color: #64748b;
}