/* =========================================
   AGE CALCULATOR MAIN LAYOUT
   Fully Separated Main Styling
========================================= */

/* ===== MAIN WRAPPER ===== */

.tool-wrapper {
  width: 92%;
  max-width: 1300px;
  margin: 60px auto 80px;
}

/* ===== PAGE HEADER ===== */

.page-header {
  text-align: center;
  margin-bottom: 50px;
}

.page-header h1 {
  font-size: 34px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 15px;
}

.short-desc {
  max-width: 750px;
  margin: 0 auto;
  color: #64748b;
  line-height: 1.7;
  font-size: 16px;
}

/* ===== MAIN FLEX LAYOUT ===== */

.main-layout {
  display: flex;
  gap: 40px;
  align-items: flex-start;
}

/* =========================================
   TOOL CARD
========================================= */

.age-card {
  flex: 3;
  background: #ffffff;
  padding: 35px;
  border-radius: 18px;
  box-shadow: 0 20px 45px rgba(0,0,0,0.06);
  transition: 0.3s ease;
}

.age-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 30px 60px rgba(0,0,0,0.08);
}

/* Input Group */

.input-group {
  margin-bottom: 22px;
}

.input-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
  color: #1e293b;
}

.input-group input {
  width: 100%;
  padding: 14px;
  border-radius: 12px;
  border: 1px solid #e2e8f0;
  font-size: 15px;
  transition: 0.25s ease;
}

.input-group input:focus {
  border-color: #4f46e5;
  box-shadow: 0 0 0 3px rgba(79,70,229,0.1);
  outline: none;
}

/* Button */

.primary-btn {
  width: 100%;
  padding: 15px;
  background: linear-gradient(135deg,#4f46e5,#3730a3);
  border: none;
  color: #ffffff;
  border-radius: 12px;
  font-size: 16px;
  cursor: pointer;
  margin-top: 10px;
  transition: 0.3s ease;
}

.primary-btn:hover {
  transform: translateY(-2px);
  opacity: 0.95;
}

/* Result Box */

.result-box {
  margin-top: 28px;
  padding: 22px;
  background: #f8fafc;
  border-radius: 14px;
  text-align: center;
  border: 1px solid #e2e8f0;
}

.result-box h3 {
  margin-bottom: 10px;
  font-size: 18px;
}

.result-box p {
  font-size: 20px;
  font-weight: 700;
  color: #4f46e5;
}

/* =========================================
   RELATED TOOLS SIDEBAR
========================================= */

.related-tools {
  flex: 1;
  background: #ffffff;
  padding: 25px;
  border-radius: 18px;
  height: fit-content;
  box-shadow: 0 20px 45px rgba(0,0,0,0.05);
  position: sticky;
  top: 120px;
}

.related-tools h2 {
  margin-bottom: 18px;
  font-size: 20px;
}

.related-tools ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.related-tools li {
  margin-bottom: 12px;
}

.related-tools a {
  text-decoration: none;
  color: #4f46e5;
  font-weight: 500;
  transition: 0.2s ease;
}

.related-tools a:hover {
  color: #3730a3;
}

/* =========================================
   CONTENT SECTION
========================================= */

.content-section {
  margin-top: 80px;
}

.content-section h2 {
  margin-bottom: 15px;
  font-size: 26px;
  color: #0f172a;
}

.content-section p {
  color: #475569;
  line-height: 1.8;
  margin-bottom: 18px;
  font-size: 16px;
}

/* =========================================
   RESPONSIVE BREAKPOINTS
========================================= */

/* --------- Large Desktop (1200px+) --------- */

@media (min-width: 1200px) {

  .tool-wrapper {
    max-width: 1400px;
  }

  .result-box p {
    font-size: 22px;
  }
}

/* --------- 992px to 1199px --------- */

@media (max-width: 1199px) and (min-width: 992px) {

  .main-layout {
    gap: 30px;
  }

  .age-card {
    padding: 30px;
  }
  
}

/* --------- 860px to 991px --------- */

@media (max-width: 991px) and (min-width: 860px) {

  .main-layout {
    flex-direction: column;
  }

  .related-tools {
    position: static;
    width: 100%;
    margin-top: 30px;
  }

  .age-card {
    width: 100%;
  }
}

/* --------- Below 860px --------- */

@media (max-width: 859px) {

  .tool-wrapper {
    width: 95%;
  }

  .page-header h1 {
    font-size: 26px;
  }

  .short-desc {
    font-size: 14px;
  }

  .main-layout {
    flex-direction: column;
  }

  .age-card {
    padding: 24px;
    width: 100%;
  }

  .related-tools {
    position: static;
    margin-top: 25px;
    width: 100%;
  }

  .result-box p {
    font-size: 17px;
  }
}

/* --------- Small Mobile (600px) --------- */

@media (max-width: 600px) {

  .page-header h1 {
    font-size: 22px;
  }

  .age-card {
    padding: 18px;
  }

  .primary-btn {
    font-size: 14px;
  }

  .result-box {
    padding: 16px;
  }
}