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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.7;
  transition: background-color 0.3s, color 0.3s;
  font-size: 16px;
}

html[dir="rtl"] body {
  text-align: right;
}

/* Light Mode (Default) */
body.light-mode {
  background-color: #f8f9fa; /* Lighter gray */
  color: #212529; /* Darker text for better contrast */
}

/* Dark Mode */
body.dark-mode {
  background-color: #1a1a1a; /* Slightly darker */
  color: #f1f1f1; /* Lighter text */
}

.container {
  width: 90%;
  max-width: 1140px; /* Common bootstrap max-width */
  margin: auto;
  overflow: hidden;
  padding: 0 15px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  background: white;
  color: white;
  position: fixed;
  padding-top: 10px;
  width: 100%;
  z-index: 99;
}


body.dark-mode header {
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  background-color: #000;
}

nav {
  display: flex;
  gap: 1rem;
  justify-content: space-between;

}

nav a {
  color: white;
  text-decoration: none;
}

.logo a {
    font-size: large;
    font-weight: bold;
    color: #ff5722;
}

body.dark-mode header .logo a {
  color: #ff5722; /* Brighter orange for dark mode */
}

header nav ul {
  display: flex;
  list-style: none;
  padding: 0;
  background-color: white;
}
body.dark-mode nav ul {
  background-color: #000;
}

nav ul a{
  color: #000;
}

body.dark-mode nav ul a {
  color: wh;
}



.burger {
  display: none;
  font-size: 1.5rem;
  background: none;
  border: none;
  color: #ff5722;
  cursor: pointer;
}

header nav ul li {
  margin-left: 25px;
}

html[dir="rtl"] header nav ul li {
  margin-left: 0;
  margin-right: 25px;
}

header nav a {
  text-decoration: none;
  font-weight: 500; /* Medium weight */
  transition: color 0.3s;
}


header nav a:hover {
  color: #ff3700;
}

body.dark-mode header nav a:hover {
  color: #ff5722;
}

#theme-toggle {
  background: #ff3700;
  color: #fff;
  border: none;
  padding: 0.6rem 1.2rem;
  cursor: pointer;
  border-radius: 25px; /* Pill shape */
  font-weight: bold;
  transition: background-color 0.3s, transform 0.2s;
}

#theme-toggle:hover {
  background-color: #e62e00;
  transform: translateY(-2px);
}

body.dark-mode #theme-toggle {
  background: #ff5722;
  color: #1a1a1a;
}

main {
  padding-top: 100px; /* Increased padding for fixed header */
}

section {
  border-bottom: 2px solid #e9ecef; /* Lighter border */
  scroll-margin-top: 180px;
}

body.dark-mode section {
  border-bottom: 1px solid #343a40; /* Darker border */
}

section:last-child {
  border-bottom: none;
}

section h2 {
  text-align: center;
  /* Increased margin */
  margin-top: 85px; /* أضف هذه السطر */
  font-size: 2.5rem; /* Larger title */
  font-weight: 700; /* Bolder */
  color: #ff3700;
}

body.dark-mode section h2 {
  color: #ff5722;
}

/* Hero Section */
#hero {
  display: flex;
  align-items: center;
  justify-content: center; /* Center content */
  min-height: calc(100vh - 100px); /* Full viewport height minus header */
  text-align: left; /* Default for LTR */
}

html[dir="rtl"] #hero {
  text-align: right;
}

.hero-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.hero-text {
  flex: 1;
  max-width: 600px;
}

.hero-text h1 {
  font-size: 3rem; /* Larger heading */
  margin-bottom: 15px;
  font-weight: 700;
}

.hero-text .highlight {
  color: #ff3700;
}

body.dark-mode .hero-text .highlight {
  color: #ff5722;
}

.hero-text p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  color: #555;
}

body.dark-mode .hero-text p {
  color: #ccc;
}

.social-links a {
  color: #333;
  font-size: 1.8rem; /* Larger icons */
  margin-right: 20px;
  transition: color 0.3s, transform 0.2s;
}

html[dir="rtl"] .social-links a {
  margin-right: 0;
  margin-left: 20px;
}

.social-links a:last-child {
  margin-right: 0;
  margin-left: 0;
}

.social-links a:hover {
  color: #ff3700;
  transform: translateY(-3px);
}

body.dark-mode .social-links a {
  color: #f1f1f1;
}

body.dark-mode .social-links a:hover {
  color: #ff5722;
}

.hero-image {
  flex-shrink: 0; /* Prevent image from shrinking */
}

.hero-image img {
  width: 500px; /* Fixed size */
  height: 500px;
  object-fit: cover; /* Ensure image covers the area */
  border-radius: 50%;
  border: 7px solid #ff3700;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

body.dark-mode .hero-image img {
  border-color: #ff5722;
  box-shadow: 0 8px 25px rgba(255, 87, 34, 0.2);
}

/* About Me Section */
#about p {
  font-size: 1.1rem;
  line-height: 1.8;
  text-align: justify;
  max-width: 800px;
  margin: 0 auto;
  margin-top: 0px;
  margin-bottom: 20px;
}

/* Card-like styles for Experience, Skills, Projects, Publications */
.experience-item,
.publication-item,
.skill-category,
.project-card {
  background: #ffffff;
  border-radius: 12px; /* More rounded corners */
  padding: 25px;
  margin-bottom: 25px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s, box-shadow 0.3s;
}

.experience-item:hover,
.publication-item:hover,
.skill-category:hover,
.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

body.dark-mode .experience-item,
body.dark-mode .publication-item,
body.dark-mode .skill-category,
body.dark-mode .project-card {
  background: #2c2c2c;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.25);
}

body.dark-mode .experience-item:hover,
body.dark-mode .publication-item:hover,
body.dark-mode .skill-category:hover,
body.dark-mode .project-card:hover {
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

/* Experience & Publications */
.experience-item h3,
.publication-item h3 {
  font-size: 1.4rem;
  margin-bottom: 8px;
}

.experience-item h3 .highlight,
.publication-item h3 .highlight,
.project-card h4 .highlight {
  color: #ff3700;
}

body.dark-mode .experience-item h3 .highlight,
body.dark-mode .publication-item h3 .highlight,
body.dark-mode .project-card h4 .highlight {
  color: #ff5722;
}

.experience-item .date,
.publication-item .source {
  font-style: italic;
  color: #6c757d; /* Bootstrap muted color */
  margin-bottom: 12px;
  font-size: 0.9rem;
}

body.dark-mode .experience-item .date,
body.dark-mode .publication-item .source {
  color: #adb5bd;
}

/* Skills Section */
.skills-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
}

.skill-category h3 {
  font-size: 1.3rem;
  margin-bottom: 15px;
  display: flex;
  align-items: center;
}

.skill-category h3 i {
  margin-right: 10px;
  color: #ff3700;
}

html[dir="rtl"] .skill-category h3 i {
  margin-right: 0;
  margin-left: 10px;
}

body.dark-mode .skill-category h3 i {
  color: #ff5722;
}

.skill-category ul {
  list-style: none;
  padding-left: 5px; /* Slight indent for items */
}

.skill-category ul li {
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  font-size: 1rem;
}

.skill-category ul li i {
  margin-right: 12px;
  color: #555;
  width: 20px; /* Ensure icon alignment */
  text-align: center;
}

html[dir="rtl"] .skill-category ul li i {
  margin-right: 0;
  margin-left: 12px;
}

body.dark-mode .skill-category ul li i {
  color: #bbb;
}

/* Projects Section */
#projects h3 {
  font-size: 1.6rem;
  margin-top: 30px; /* Space between project categories */
  margin-bottom: 20px;
  display: flex;
  align-items: center;
}

#projects h3 i {
  margin-right: 10px;
  color: #ff3700;
}

html[dir="rtl"] #projects h3 i {
  margin-right: 0;
  margin-left: 10px;
}

body.dark-mode #projects h3 i {
  color: #ff5722;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 25px;
}

.project-card h4 {
  font-size: 1.3rem;
  margin-bottom: 10px;
}

.project-card p {
  margin-bottom: 10px;
  font-size: 0.95rem;
}

.project-card p strong {
  font-weight: 600;
}



.project-card {
  display: flex ;
  flex-direction: column;
  justify-content: space-between;
}
.btn-project{
 align-self: flex-start;
 background-color: #ff3700;
  color: #fff;
  padding: 8px 15px;
  border-radius: 20px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: background-color 0.3s;
}

.btn-project:hover {
  background-color: #e62e00;
}

.btn-project i {
  font-size: 1rem; /* توحيد حجم الأيقونة */
  vertical-align: middle;
}

body.dark-mode .btn-project {
  background-color: #ff5722;
  color: #1a1a1a;
}

/* Certificates Section - Enhanced */
#certificates {
  padding-bottom: 80px; /* More space at the bottom */
}

.certificates-grid {
  display: grid;
  grid-template-columns: repeat(
    auto-fit,
    minmax(300px, 1fr)
  ); /* Slightly larger min size for better spacing */
  gap: 35px; /* Increased gap for better separation */
  justify-items: center; /* Center items within their grid cells */
}

.certificate-item {
  background: #ffffff; /* Will be overridden by dark mode if active */
  border-radius: 15px; /* Softer, more modern radius */
  padding: 25px; /* More padding for content */
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.07); /* Softer, more diffused shadow */
  text-align: center;
  transition: transform 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94),
    box-shadow 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94); /* Smoother custom cubic-bezier transition */
  width: 100%; /* Ensure it takes full width of grid cell */
  display: flex;
  flex-direction: column;
  align-items: center; /* Center content */
  overflow: hidden; /* Important for containing scaled images or effects */
}

.certificate-item:hover {
  transform: translateY(-8px) scale(1.02); /* Lift and slight scale effect */
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1); /* Enhanced shadow on hover */
}

body.dark-mode .certificate-item {
  background: #2c2c2c; /* Dark mode card background */
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2); /* Dark mode shadow */
}

body.dark-mode .certificate-item:hover {
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.3); /* Dark mode hover shadow */
}

.certificate-item a {
  display: block;
  margin-bottom: 20px; /* Increased space between image and text */
  width: 100%; /* Ensure link covers the image area */
  border-radius: 10px; /* Match image border radius for click area */
  overflow: hidden; /* To ensure image hover effect is contained if link is wrapper */
}

.certificate-item img {
  width: 100%;
  max-height: 220px; /* Slightly increased max height for clarity */
  object-fit: contain; /* Ensures the whole image is visible */
  border: 1px solid #e8e8e8; /* Light border for the image */
  border-radius: 10px; /* Rounded corners for the image */
  transition: transform 0.3s ease-in-out; /* Smooth transform for image */
  background-color: #f9f9f9; /* Light background for transparent PNGs */
}

/* Image zoom effect when hovering over the certificate item (the card) */
.certificate-item:hover img {
  transform: scale(1.08); /* Slightly more pronounced zoom on card hover */
}

body.dark-mode .certificate-item img {
  border-color: #4a4a4a; /* Dark mode image border */
  background-color: #333; /* Dark mode background for transparent PNGs */
}

.certificate-item p {
  font-weight: 600; /* Bolder text for certificate name */
  font-size: 1.05rem; /* Slightly larger font size */
  margin-top: auto; /* Pushes text to the bottom, good for varying image heights */
  color: #333; /* Default text color */
  line-height: 1.4; /* Improved line height for readability */
  padding-top: 10px; /* Add some space above the text if margin-top:auto isn't enough */
}

body.dark-mode .certificate-item p {
  color: #f1f1f1; /* Text color for dark mode */
}

/* Contact Section */
.contact-content {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
}

.contact-info,
.contact-form {
  flex: 1;
  min-width: 300px; /* Ensure they don't get too squished */
}

.contact-info p {
  margin-bottom: 15px;
  font-size: 1.05rem;
  display: flex;
  align-items: center;
}

.contact-info p i {
  margin-right: 12px;
  color: #ff3700;
  width: 20px;
  text-align: center;
}

html[dir="rtl"] .contact-info p i {
  margin-right: 0;
  margin-left: 12px;
}

body.dark-mode .contact-info p i {
  color: #ff5722;
}

.social-links-contact a {
  display: inline-block; /* Or flex for better alignment */
  margin-right: 15px;
  margin-bottom: 10px;
  color: #333;
  text-decoration: none;
  font-size: 1rem;
  transition: color 0.3s;
}

html[dir="rtl"] .social-links-contact a {
  margin-right: 0;
  margin-left: 15px;
}

.social-links-contact a:hover {
  color: #ff3700;
}

body.dark-mode .social-links-contact a {
  color: #f1f1f1;
}

body.dark-mode .social-links-contact a:hover {
  color: #ff5722;
}

.social-links-contact i {
  margin-right: 8px;
}

html[dir="rtl"] .social-links-contact i {
  margin-right: 0;
  margin-left: 8px;
}

#contact input,
#contact textarea {
  width: 100%;
  margin-bottom: 20px;
  padding: 12px;
  border: 1px solid #ced4da;
  border-radius: 8px;
  font-size: 1rem;
}

body.dark-mode #contact input,
body.dark-mode #contact textarea {
  background-color: #343a40;
  border-color: #495057;
  color: #f1f1f1;
}

#contact input::placeholder,
#contact textarea::placeholder {
  color: #6c757d;
}

body.dark-mode #contact input::placeholder,
body.dark-mode #contact textarea::placeholder {
  color: #adb5bd;
}

.btn-submit {
  background: #ff3700;
  color: #fff;
  border: none;
  padding: 12px 25px;
  cursor: pointer;
  border-radius: 25px;
  font-size: 1.1rem;
  font-weight: bold;
  transition: background-color 0.3s, transform 0.2s;
}

.btn-submit:hover {
  background-color: #e62e00;
  transform: translateY(-2px);
}

body.dark-mode .btn-submit {
  background: #ff5722;
  color: #1a1a1a;
}

footer {
  text-align: center;
  padding: 30px 0;
  background: #212529;
  color: #f8f9fa;
  margin-top: 40px;
}

body.dark-mode footer {
  background: #111;
}

footer p {
  margin-bottom: 5px;
}

footer a {
  color: #ff5722;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* Responsive adjustments */
@media (max-width: 992px) {
  .hero-container {
    flex-direction: column-reverse; /* Image on top */
    text-align: center;
  }
  html[dir="ltr"] .hero-text {
    text-align: center;
  }
  html[dir="rtl"] .hero-text {
    text-align: center;
  }
  .hero-image img {
    width: 280px;
    height: 280px;
    margin-bottom: 30px;
  }
  .hero-text h1 {
    font-size: 2.5rem;
  }
}

@media (max-width: 768px) {
 
  header nav ul {
    margin-top: 15px;
    flex-direction: column;
    align-items: center;
    width: 100%;
  }
  header nav ul li {
    margin: 8px 0;
    width: 100%;
    text-align: center;
  }
  #theme-toggle {
    margin-top: 10px;
  }
  .skills-categories,
  .project-grid,
  .certificates-grid {
    grid-template-columns: 1fr; /* Single column on smaller screens */
  }
  .contact-content {
    flex-direction: column;
  }
}

/* Light Mode (Default) */
body.light-mode #nav-menu {
  background-color: #ffffff; /* خلفية بيضاء في الوضع الخفيف */
  color: #212529; /* لون النص داكن */
}

body.light-mode #nav-menu a {
  color: #000; /* رابط داكن في الوضع الخفيف */
}

body.light-mode #nav-menu a:hover {
  color: #ff3700; /* تأثير hover بلون مميز */
}

/* Dark Mode */
body.dark-mode #nav-menu {
  background-color: #000; /* خلفية داكنة في الوضع المظلم */
  color: #f1f1f1; /* لون النص فاتح في الوضع المظلم */
}

body.dark-mode #nav-menu a {
  color: #f1f1f1; /* رابط فاتح في الوضع المظلم */
}

body.dark-mode #nav-menu a:hover {
  color: #ff5722; /* تأثير hover بلون برتقالي لامع */
}




/* Responsive part */
@media (max-width: 768px) {
  .burger {
    display: block;
  }

  #nav-menu {
    display: none;
    position: absolute;
    top: 60px;
    right: 0rem;
    background: white;
    padding: 1rem;
    flex-direction: column;
    border-radius: 5px;
    z-index: 100;
  }

  #nav-menu.active {
    display: flex;
  }
}