/* ===== BASE STYLES ===== */
:root {
  /* Header & Footer Colors */
  --header-bg-start: #3f51b5; /* Deeper blue for gradient start */
  --header-bg-end: #673ab7;   /* Purple for gradient end */
  --header-text-color: #ffffff;
  --footer-bg-color: #2c3e50; /* Dark blue-grey */
  --footer-text-color: #cccccc;
  --footer-link-color: #eeeeee;

  /* Specific to Weight Converter Page */
  --body-bg-color: #f7f9fc;
  --converter-main-bg: #ffffff;
  --converter-main-shadow: rgba(0, 0, 0, 0.1);
  --page-title-color: #2a6f97;
  --label-color: #333;
  --input-border: #ccc;
  --button-bg: #2a6f97;
  --button-hover-bg: #1e516c;
  --result-text-color: #444;

  /* Info Section Specific Colors */
  --info-section-bg: #ffffff;
  --info-section-shadow: rgba(0, 0, 0, 0.08);
  --info-h2-color: #1f4e79;
  --info-text-color: #333;
}

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

body {
  background-color: var(--body-bg-color);
  font-family: Arial, sans-serif;
  color: var(--label-color);
  min-height: 100vh;
  display: flex;
  flex-direction: column; /* Crucial for header/footer layout */
}

/* ===== HEADER STYLES ===== */
.main-header {
  background: linear-gradient(135deg, var(--header-bg-start), var(--header-bg-end));
  padding: 15px 30px;
  color: var(--header-text-color);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  z-index: 1000;
  width: 100%;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
}

.logo-section {
  display: flex;
  align-items: center;
}

.header-logo-img {
  width: 40px;
  height: 40px;
  margin-right: 10px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.918);
  padding: 2px;
}

.site-title {
  font-size: 24px;
  font-weight: bold;
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 25px;
}

.main-nav ul li a {
  color: var(--header-text-color);
  text-decoration: none;
  font-size: 17px;
  font-weight: 500;
  transition: opacity 0.3s ease;
}

.main-nav ul li a:hover {
  opacity: 0.8;
}

.hamburger-menu {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 6px;
}

.hamburger-menu .bar {
  width: 25px;
  height: 3px;
  background-color: var(--header-text-color);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.mobile-nav {
  display: none;
  background: var(--header-bg-end);
  width: 100%;
  position: absolute;
  top: 70px; /* Adjust based on actual header height */
  left: 0;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  transform: translateY(-100%);
  transition: transform 0.3s ease-in-out;
  z-index: 999;
}

.mobile-nav.active {
  display: block;
  transform: translateY(0);
}

.mobile-nav ul {
  list-style: none;
  padding: 10px 0;
  text-align: center;
}

.mobile-nav ul li {
  padding: 12px 20px;
}

.mobile-nav ul li a {
  color: var(--header-text-color);
  text-decoration: none;
  font-size: 18px;
  display: block;
}

.mobile-nav ul li a:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 5px;
}

/* Hamburger animation */
.hamburger-menu.active .bar:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}
.hamburger-menu.active .bar:nth-child(2) {
  opacity: 0;
}
.hamburger-menu.active .bar:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* ===== MAIN CONTENT WRAPPER ===== */
.content-wrapper {
  flex-grow: 1; /* This makes the main content take up all available space */
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px; /* Add padding for overall content */
  display: flex;
  flex-direction: column; /* Stack converter and sections */
  align-items: center; /* Center content horizontally */
  box-sizing: border-box;
}

/* ===== CONVERTER STYLES (formerly .container) ===== */
.weight-converter-main { /* Renamed from .container for consistency */
  max-width: 500px;
  width: 100%;
  margin: 3rem auto 25px; /* Adjusted margin for spacing with sections */
  padding: 2rem;
  background: var(--converter-main-bg);
  border-radius: 12px;
  box-shadow: 0 6px 20px var(--converter-main-shadow);
  text-align: center;
}

.page-title { /* Renamed from h1 for consistency */
  margin-bottom: 1.5rem;
  color: var(--page-title-color);
  font-size: 2.2rem; /* Adjusted for better hierarchy */
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap; /* Allow wrapping on smaller screens */
}

.icon-small {
  width: 50px;
  height: 50px;
  vertical-align: middle;
  margin-right: 16px;
}

.converter-box {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

label {
  text-align: left;
  font-weight: bold;
  color: var(--label-color);
}

input, select {
  padding: 0.6rem;
  font-size: 1rem;
  border: 1px solid var(--input-border);
  border-radius: 8px;
  transition: border-color 0.3s, box-shadow 0.3s;
}

input:focus, select:focus {
  border-color: var(--button-bg);
  box-shadow: 0 0 5px rgba(42, 111, 151, 0.5); /* Matching button color */
  outline: none;
}

button {
  padding: 0.7rem;
  background-color: var(--button-bg);
  color: white;
  font-size: 1rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s;
}

button:hover {
  background-color: var(--button-hover-bg);
}

.result {
  margin-top: 1rem;
  font-size: 1.2rem;
  color: var(--result-text-color);
  min-height: 1.3em; /* Ensure consistent spacing */
}

/* ===== INFO SECTION STYLES ===== */
section.info-section { /* Using section.info-section for specificity */
  background-color: var(--info-section-bg);
  margin: 30px auto;
  padding: 25px;
  max-width: 850px;
  width: 100%;
  border-radius: 10px;
  box-shadow: 0 0 15px var(--info-section-shadow);
}

.info-section h2 {
  color: var(--info-h2-color);
  font-size: 26px;
  margin-bottom: 12px;
  text-align: left; /* Ensure left alignment for headings */
}

.info-section p, .info-section ul, .info-section li, .info-section ol {
  text-align: justify; /* Full justification */
  color: var(--info-text-color);
  font-size: 17px;
  line-height: 1.7;
}

.info-section ol, .info-section ul {
  padding-left: 22px;
}
.info-section ul {
  list-style-type: disc; /* Ensure bullet points are visible */
}
.info-section ol {
  list-style-type: decimal; /* Ensure numbered lists are visible */
}

/* ===== FOOTER STYLES ===== */
.main-footer {
  background-color: var(--footer-bg-color);
  color: var(--footer-text-color);
  padding: 40px 20px 20px;
  margin-top: auto; /* Pushes footer to the bottom */
  width: 100%;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-section {
  padding: 10px;
  text-align: left;
}

.footer-logo-section {
  display: flex;
  align-items: center;
  margin-bottom: 15px;
}

.footer-logo-img {
  width: 35px;
  height: 35px;
  margin-right: 10px;
  border-radius: 0.5rem;
  background: #fefeff;
  padding: 2px;
}

.footer-site-title {
  font-size: 20px;
  font-weight: bold;
  color: var(--footer-link-color);
}

.footer-section h3 {
  color: var(--footer-link-color);
  font-size: 18px;
  margin-bottom: 15px;
}

.footer-section p {
  font-size: 15px;
  line-height: 1.6;
  text-align: left;
  margin-bottom: 0;
  color: var(--footer-text-color);
}

.footer-section ul {
  list-style: none;
  padding: 0;
}

.footer-section ul li {
  margin-bottom: 8px;
}

.footer-section ul li a {
  color: var(--footer-text-color);
  text-decoration: none;
  font-size: 15px;
  transition: color 0.3s ease;
}

.footer-section ul li a:hover {
  color: var(--footer-link-color);
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  font-size: 14px;
  color: var(--footer-text-color);
}

/* ===== STICKY CHAT ICON STYLES ===== */
.sticky-chat-icon {
  display: inline-block;
  text-decoration: none;
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 9999;
  cursor: pointer;
}

.sticky-chat-icon > div:first-child {
  width: 50px;
  height: 50px;
  background-color: #8800f8;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  transition: transform 0.3s ease;
}

.sticky-chat-icon svg {
  width: 25px;
  height: 25px;
  fill: white;
}

.sticky-chat-icon > div:last-child {
  position: absolute;
  width: 80px;
  height: 80px;
  background: #8800f8;
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: -1;
  opacity: 0.4;
  animation: wave 2s infinite linear;
}

@keyframes wave {
  0% {
    transform: translate(-50%, -50%) scale(0.8);
    opacity: 0.4;
  }
  70% {
    transform: translate(-50%, -50%) scale(1.3);
    opacity: 0.1;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.4);
    opacity: 0;
  }
}

/* ===== RESPONSIVE ADJUSTMENTS ===== */
@media (max-width: 768px) {
  body {
    padding: 0;
  }

  .main-header {
    padding: 10px 20px;
  }

  .main-nav {
    display: none;
  }

  .hamburger-menu {
    display: flex;
  }

  .site-title {
    font-size: 20px;
  }

  .header-logo-img {
    width: 35px;
    height: 35px;
  }

  .content-wrapper {
    padding: 15px;
  }

  .weight-converter-main {
    margin: 20px auto 15px;
    padding: 20px;
  }

  .page-title {
    font-size: 24px;
    flex-direction: column;
    gap: 10px;
  }

  .icon-small {
    margin-right: 0;
  }

  label {
    font-size: 0.95rem;
  }

  input, select, button {
    font-size: 0.95rem;
    padding: 8px;
  }

  .result {
    font-size: 1rem;
  }

  .info-section {
    padding: 20px;
    margin: 15px auto;
  }
  .info-section h2 {
    font-size: 1.3rem;
    text-align: center;
  }
  .info-section p, .info-section ul, .info-section li, .info-section ol {
    font-size: 0.95rem;
    text-align: justify; /* Keep justified */
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-section {
    padding: 15px 0;
  }

  .footer-logo-section {
    justify-content: center;
  }

  .footer-section p, .footer-section ul {
    text-align: center;
  }

  .sticky-chat-icon {
    bottom: 20px !important;
    right: 20px !important;
  }

  .sticky-chat-icon > div:first-child {
    width: 45px !important;
    height: 45px !important;
  }

  .sticky-chat-icon svg {
    width: 22px !important;
    height: 22px !important;
  }

  .sticky-chat-icon > div:last-child {
    width: 65px !important;
    height: 65px !important;
  }
}

@media (max-width: 480px) {
  .page-title {
    font-size: 20px;
  }
  .icon-small {
    width: 40px;
    height: 40px;
    margin-right: 10px;
  }
  label {
    font-size: 0.85rem;
  }
  input, select, button {
    font-size: 0.85rem;
    padding: 8px;
  }
  .result {
    font-size: 0.95rem;
  }
  .info-section h2 {
    font-size: 1.2rem;
  }
  .info-section p, .info-section ul, .info-section li, .info-section ol {
    font-size: 0.9rem;
  }
}

/* Print Styles */
@media print {
  body {
    background: none;
    padding: 0;
  }

  .main-header, .main-footer, .sticky-chat-icon, .mobile-nav, .hamburger-menu, button {
    display: none !important;
  }

  .content-wrapper {
    padding: 0;
  }

  .weight-converter-main {
    box-shadow: none;
    padding: 0;
    max-width: 100%;
    margin: 0;
  }

  input, select, label {
    display: none; /* Hide input fields and labels on print */
  }

  .result {
    display: block !important;
    font-size: 1.2em !important; /* Make result clearly visible */
    padding: 10px 0;
    border: 1px solid #ccc;
    background-color: #f9f9f9;
    border-radius: 8px;
    margin-top: 20px;
  }

  .info-section {
    box-shadow: none;
    padding: 15px 0;
    margin: 15px auto;
  }

  /* Ensure text colors are readable on white print background */
  body, .weight-converter-main, .info-section {
    color: black;
  }
  .page-title, .result,
  .info-section h2, .info-section p, .info-section li, .info-section ol {
    color: #000 !important; /* Force black for print */
    background: none !important;
  }
}