/* --- CSS Custom Properties (Variables) --- */
:root {
  /* Given the complex gradient, primary/secondary colors for UI elements
     will be more neutral or a single, clear accent to avoid visual clutter. */
  --primary-color: #708090; /* Slate Gray - a neutral but strong accent */
  --secondary-color: #5f9ea0; /* Cadet Blue - a calm, muted color from the aqua side */
  --accent-color: #c77299; /* Muted Rose - from the pink side of the gradient */

  /* The complex gradient provided by user */
  --background-gradient-body: linear-gradient(
    to right,
    #e4afcb 0%,
    #b8cbb8 0%,
    #b8cbb8 0%,
    #e2c58b 30%,
    #c2ce9c 64%,
    #7edbdc 100%
  );

  --header-bg: rgba(250, 250, 250, 0.9); /* Very light, nearly opaque off-white */
  --card-bg: linear-gradient(
    to bottom,
    #ffffff 0%,
    #fcfdff 100%
  ); /* Clean white card */

  --text-dark-on-light-bg: #333333; /* Dark grey for main text on light cards/header */
  --text-light-on-dark-bg: #f8f8f8; /* Light text for dark buttons if used */
  --text-muted: #6c757d; /* Softer grey for muted text */

  --font-heading: "Share Tech", sans-serif;
  --font-body: "Poppins", sans-serif;
  --border-radius-main: 0.75rem;
  --border-radius-small: 0.375rem;
  --shadow-soft: 0 4px 12px rgba(0, 0, 0, 0.07); /* Softer shadow for busy bg */
  --shadow-medium: 0 6px 20px rgba(0, 0, 0, 0.1);
  --shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.15); /* More pronounced shadow for hover */

  --transition-speed: 0.3s;
  --transition-fast: 0.2s; /* Added for quicker transitions */
  --transition-slow: 0.4s; /* Added for slower, more deliberate transitions */
}

/* --- Base & Reset --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-image: var(--background-gradient-body);
  background-attachment: fixed;
  color: var(--text-dark-on-light-bg); /* Default text, good for light cards */
  line-height: 1.6;
  padding: 1rem;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast) ease,
    transform var(--transition-fast) ease;
}

img {
  max-width: 100%;
  display: block;
}

/* --- Header --- */
.header {
  padding: 0.5rem 0;
}
.header_content {
  display: flex;
  flex-wrap: wrap; /* Allows items to wrap for responsive layout */
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  background-color: var(--header-bg);
  backdrop-filter: blur(10px);
  border-radius: var(--border-radius-main);
  padding: 0.75rem 1.5rem;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(0, 0, 0, 0.05); /* Subtle border for definition */
  position: relative; /* Needed for absolute positioning of expanded menu */
  z-index: 100; /* Ensure header is above other content */
  transition: all var(--transition-speed) ease; /* Smooth transition for header itself */
}

.logo {
  display: flex;
  align-items: center;
  font-weight: 700;
  font-size: 1.6rem;
  color: var(--primary-color);
  transition: transform var(--transition-speed) ease;
  z-index: 2; /* Ensure logo is above the expanding menu */
}
.logo:hover,
.logo:focus-visible {
  transform: scale(1.05) translateX(3px); /* Scale and slight move */
  color: var(--secondary-color); /* Change color on hover */
}

.logo_icon {
  width: 45px;
  height: 45px;
  border-radius: var(--border-radius-small);
  margin-right: 0.75rem;
  transition: transform var(--transition-speed) ease; /* Transition for icon */
}
.logo:hover .logo_icon {
  transform: rotate(10deg); /* Slight rotation on icon hover */
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin: 0.5rem 0;
}

.nav_link {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--secondary-color);
  padding: 0.5rem 0.25rem;
  position: relative;
  transition: color var(--transition-fast) ease,
    transform var(--transition-fast) ease; /* Transition for link text color and lift */
}

.nav_link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-color);
  transition: width var(--transition-speed) ease-out;
}

.nav_link:hover::after,
.nav_link:focus-visible::after {
  width: 100%;
}
.nav_link:hover,
.nav_link:focus-visible {
  color: var(--primary-color);
  transform: translateY(-2px); /* Lift link slightly */
}

/* Updated Contact Button Styling with Enhanced Effects */
.contact_button {
  font-size: 1rem;
  color: var(--text-light-on-dark-bg);
  background: linear-gradient(
    45deg,
    var(--primary-color) 0%,
    var(--secondary-color) 100%
  ); /* Gradient from primary to secondary */
  border: none;
  border-radius: 2rem; /* Pill-like shape */
  padding: 0.8rem 1.8rem;
  font-weight: 600;
  text-transform: uppercase; /* Uppercase text */
  letter-spacing: 0.05em; /* Subtle letter spacing */
  cursor: pointer;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2); /* Softer, more prominent shadow */
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1); /* Smooth, elegant transition */
  transform: scale(1); /* Initial scale for subtle hover effect */
  position: relative; /* Needed for pseudo-element effects */
  overflow: hidden; /* Hide overflow for shimmer effect */
  z-index: 1; /* Ensure content is above pseudo-element */
}

/* Shimmer effect for contact button */
.contact_button::before {
  content: "";
  position: absolute;
  top: 0;
  left: -75%;
  width: 50%;
  height: 100%;
  background: rgba(255, 255, 255, 0.3); /* White shimmer */
  transform: skewX(-20deg);
  transition: left 0.6s cubic-bezier(0.25, 0.8, 0.25, 1); /* Slower shimmer transition */
  z-index: -1; /* Place behind text */
}

.contact_button:hover::before {
  left: 125%; /* Move shimmer across the button */
}

.contact_button:hover,
.contact_button:focus-visible {
  background: linear-gradient(
    45deg,
    var(--secondary-color) 0%,
    var(--primary-color) 100%
  ); /* Reverse gradient on hover */
  transform: translateY(-3px) scale(1.05); /* Lift up and slightly enlarge */
  box-shadow: var(--shadow-hover); /* More pronounced shadow on hover */
  color: var(--text-light-on-dark-bg); /* Ensure text remains visible on hover */
  outline: none; /* Remove default outline for cleaner focus-visible */
}

.contact_button:active {
  transform: translateY(0) scale(0.98); /* Slightly press down on click */
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15); /* Reduced shadow on active */
  background: linear-gradient(
    45deg,
    color-mix(in srgb, var(--secondary-color) 90%, black) 0%,
    color-mix(in srgb, var(--primary-color) 90%, black) 100%
  ); /* Darker gradient on active */
}

/* Hamburger button styles with subtle hover */
.hamburger {
  display: none; /* Hidden by default, shown on small screens */
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 2; /* Ensure it's above the menu when open */
  transition: transform var(--transition-fast) ease; /* Add transition */
}

.hamburger img {
  width: 30px;
  height: 30px;
  /* Filter for a neutral dark icon that's visible on light header */
  filter: brightness(0.4);
  transition: filter var(--transition-fast) ease,
    transform var(--transition-fast) ease; /* Transition for icon filter and transform */
}

.hamburger:hover {
  transform: scale(1.1); /* Slightly enlarge on hover */
}
.hamburger:hover img {
  filter: brightness(0) saturate(100%) invert(20%) sepia(80%) saturate(1500%)
    hue-rotate(180deg); /* Example: Tint to secondary-color for hover */
}

/* --- Main Section --- */
.all_section {
  padding-top: 2rem;
}

.main_section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2.5rem;
  padding: 1rem 0;
}

.heading_line {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  /* For a complex gradient bg, a light text color with strong shadow is often best */
  color: var(--text-light-on-dark-bg);
  text-align: center;
  text-shadow: 2px 2px 6px rgba(0, 0, 0, 0.7),
    /* Stronger, more diffused shadow for visibility */ 0 0 20px
      rgba(40, 40, 40, 0.4);
  letter-spacing: 1px;
  padding: 0.5rem 1rem;
  background-color: rgba(
    0,
    0,
    0,
    0.1
  ); /* Slightly more opaque transparent bg for heading to pop */
  border-radius: var(--border-radius-small);
  box-shadow: var(--shadow-soft); /* Add a subtle shadow to the heading box */
}

/* This video_overlay seems to be a remnant, hiding it by default */
.video_overlay {
  display: none;
}

/* --- Cards --- */
.cards {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.card_container {
  background: var(--card-bg);
  border-radius: var(--border-radius-main);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-speed) ease,
    box-shadow var(--transition-speed) ease;
  border: 1px solid rgba(0, 0, 0, 0.08); /* Subtle border */
}

.card_container:hover {
  transform: translateY(-8px) scale(1.03); /* More pronounced lift and scale */
  box-shadow: var(--shadow-hover); /* Deeper shadow on hover */
}

.card_image_container {
  position: relative;
  overflow: hidden;
  height: 180px;
  background-color: #e8e8ea; /* Neutral placeholder */
}

.card_image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform var(--transition-slow) ease-out; /* Slower image zoom */
}

.card_container:hover .card_image {
  transform: scale(1.15); /* More pronounced image zoom */
}

.card_body_container {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  gap: 1rem;
}

.card_title_container {
  flex-grow: 1;
}

.card_title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-dark-on-light-bg);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.card_title_anchor {
  transition: color var(--transition-fast) ease;
}
.card_title_anchor:hover .card_title {
  color: var(--primary-color);
}

.card_desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

/* Card Footer Styling */
.card_footer_container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1rem;
  border-top: 1px solid #e9ecef; /* Light border */
  margin-top: auto;
}

.author_container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.author_avtar_container {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  overflow: hidden;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.08);
  transition: transform var(--transition-fast) ease; /* Avatar transition */
}
.author_container:hover .author_avtar_container {
  transform: scale(1.1); /* Slightly enlarge avatar on hover */
}
.author_avtar {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.author_info_container {
  display: flex;
  flex-direction: column;
}

.author_name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--secondary-color);
  transition: color var(--transition-fast) ease;
}
.author_container:hover .author_name {
  color: var(--primary-color); /* Change color on hover */
}

.author_date {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.card_tag_container {
  font-size: 0.8rem;
  background-color: color-mix(in srgb, var(--accent-color) 15%, transparent);
  color: var(--accent-color);
  border: 1px solid color-mix(in srgb, var(--accent-color) 30%, transparent);
  border-radius: var(--border-radius-small);
  padding: 0.3rem 0.6rem;
  font-weight: 500;
  transition: all var(--transition-fast) ease; /* Tag transition */
}
.card_container:hover .card_tag_container {
  background-color: var(--accent-color); /* Solid color on card hover */
  color: var(--text-light-on-dark-bg); /* Light text on hover */
}

/* --- Focus Visible (Accessibility) --- */
a:focus-visible,
button:focus-visible,
.card_container:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px
    color-mix(in srgb, var(--primary-color) 25%, transparent);
}
.card_container:focus-visible {
  outline: none;
}
.card_image_container:focus-visible {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* --- Media Queries for Responsiveness (Hamburger Menu Integration) --- */

/* For tablets and larger phones (hamburger appears, menu stacks) */
@media (max-width: 992px) {
  :root {
    --border-radius-main: 0.6rem;
  }
  .header_content {
    flex-wrap: nowrap;
    justify-content: space-between;
    padding: 1rem;
    position: relative;
    z-index: 100;
    border-radius: var(--border-radius-main);
  }

  .nav,
  .contact_button {
    display: none;
  }

  .hamburger {
    display: block;
  }

  /* Styles for when the navigation is active/open */
  .header_content.active {
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    position: absolute; /* Keep absolute positioning */
    top: 0;
    left: 0;
    width: 100%;
    height: auto; /* Let height be determined by content */
    background-color: color-mix(
      in srgb,
      var(--primary-color) 90%,
      transparent
    ); /* Darker, slightly opaque background using primary color */
    backdrop-filter: blur(10px);
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.3);
    padding-bottom: 1rem; /* Adjust bottom padding as needed */
    border-radius: var(--border-radius-main); /* Keep border radius */
    padding-top: 4.5rem; /* Adjust top padding to account for the header's initial height */
    transition: all var(--transition-speed) ease-in-out;
  }

  .header_content:not(.active) {
    transition: all var(--transition-speed) ease-in-out;
  }

  .header_content.active .logo {
    margin-bottom: 1rem;
    width: 100%;
    text-align: center;
    justify-content: center;
    position: absolute; /* Position logo at the top within the active state */
    top: 0.75rem;
    left: 0;
    color: var(--text-light-on-dark-bg); /* Logo text white on dark menu */
  }

  .header_content.active .hamburger {
    position: absolute;
    top: 0.75rem;
    right: 1.5rem;
    z-index: 101;
    filter: invert(1); /* Invert hamburger color to be visible on dark menu */
    transform: rotate(90deg); /* Rotate for a close icon effect */
  }

  .header_content.active .nav {
    display: flex;
    flex-direction: column;
    padding: 0;
    gap: 0;
    width: 100%;
    align-items: center;
    margin-bottom: 1rem; /* Reduce bottom margin for nav */
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInSlideUp 0.5s forwards ease-out 0.2s;
    margin-top: 3rem; /* Adjust top margin to be below the logo */
  }

  /* Keyframe animation for menu items */
  @keyframes fadeInSlideUp {
    from {
      opacity: 0;
      transform: translateY(20px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

  /* Delay animation for each nav link */
  .header_content.active .nav_link:nth-child(1) {
    animation-delay: 0.25s;
  }
  .header_content.active .nav_link:nth-child(2) {
    animation-delay: 0.35s;
  }
  .header_content.active .nav_link:nth-child(3) {
    animation-delay: 0.45s;
  }
  /* Continue for more links if needed */

  .header_content.active .nav_link {
    color: var(--text-light-on-dark-bg);
    font-size: 1.2rem;
    padding: 0.8rem 1.5rem;
    width: 90%;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .header_content.active .nav_link:last-child {
    border-bottom: none;
  }

  .header_content.active .nav_link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--secondary-color); /* Hover color for nav links in active state */
  }

  .header_content.active .contact_button {
    display: block;
    padding: 0.8rem 1.8rem;
    width: fit-content;
    align-self: center;
    color: var(--text-light-on-dark-bg);
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInSlideUp 0.5s forwards ease-out 0.55s;
    margin-top: 1rem; /* Adjust spacing above the contact button */
    margin-bottom: 1rem; /* Add some bottom margin for spacing */
  }

  /* Adjust existing styles for smaller screens */
  .heading_line {
    font-size: clamp(2rem, 6vw, 2.8rem);
  }

  .cards {
    gap: 1.5rem;
    padding: 0 0.5rem;
  }

  .card_image_container {
    height: 160px;
  }
  .card_title {
    font-size: 1.4rem;
  }
  .card_desc {
    font-size: 0.9rem;
  }
  .card_footer_container {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
}

/* For small phones */
@media (max-width: 480px) {
  body {
    padding: 0.5rem;
  }
  .header_content {
    padding: 0.75rem;
    border-radius: var(--border-radius-small);
  }
  .logo {
    font-size: 1.4rem;
  }
  .logo_icon {
    width: 35px;
    height: 35px;
  }
  .header_content.active .nav_link {
    font-size: 1.1rem;
    padding: 0.6rem 1rem;
  }
  .header_content.active .contact_button {
    font-size: 0.9rem;
    padding: 0.7rem 1.5rem;
  }

  .heading_line {
    font-size: clamp(1.8rem, 7vw, 2.2rem);
  }

  .cards {
    gap: 1rem;
  }
  .card_container {
    border-radius: var(--border-radius-small);
  }
  .card_image_container {
    height: 140px;
  }
  .card_title {
    font-size: 1.25rem;
  }
}