/* Universal selector: removes default browser margin and padding */
*
{
     /* Removes default margins applied by the browser */
    margin: 0;

    /* Removes default internal spacing (padding) */
    padding: 0;

    /* Includes padding and border inside the element’s width and height */
    box-sizing: border-box;
}

/* Global body styles */
body
{
    /* Uses a clean and readable font */
    font-family: sans-serif;

    background-color: #F9FAFB;
     /* Light background color to contrast with the navbar */

    color: #111827; 

    padding-top: 70px; 
     /* Adds top padding to prevent content from being hidden behind the fixed navbar */

}

/* Header section */
header 
{
  position: fixed; 
  /* Makes the navbar fixed to the top while scrolling */

  top: 0;

  
  left: 0;

  width: 100%;

  background-color: #FFFFFF;

  box-shadow: 0 6px 20px rgba(30, 58, 138, 0.3);

  z-index: 1000;
}

/* Navigation bar */
nav
{
    /* Enables Flexbox for horizontal alignment */
    display: flex;

    /* Distributes space evenly between elements */
    justify-content: space-between;

    /* Vertically centers items */
    align-items: center;

    /* Vertical spacing for a comfortable navbar height */
    padding: 20px 40px;
}

/* Logo styling */
.logo
{
    /* Removes underline from the logo link */
    text-decoration: none;

    /* Sets the logo color to white */
    color: #1F2937;

    font-family: sans-serif;

    /* Makes the logo stand out */
    font-weight: 700;

    /* Slightly increases the logo size */
    font-size: 22px;
}


/* Menu list */
nav ul
{
    /* Removes default bullet points */
    list-style: none;

    /* Displays menu items in a single row */
    display: flex;

    /* Adds spacing between menu links */
    gap: 20px;
}

/* Menu links */
nav ul li a 
{
    /* Removes default link underline */
    text-decoration: none;

    color: #111827;               /* Dark gray for readability */
    font-weight: 500;             /* Semi-bold for balance */
    font-size: 16px;
    
    /* Increases clickable area for better usability */
     padding: 8px 12px;
    
    
} 

nav ul li a:hover 
{
    color:  #2563EB;
}


/* section home  */
.home {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 80px 20px;
  background-color: #F9FAFB;
}

.profile-illustration {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  object-fit: cover;
 border: 4px solid #1E3A8A;
  margin-bottom: 24px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.15);
  transition: transform 0.3s ease;
  margin-top: 10px;
}

.profile-illustration:hover {
  transform: scale(1.03);
}



.home h1 {
  font-size: 3rem;
  margin-bottom: 16px; 
  font-weight: 700;
  color: #0F172A;
}

 
 

.home h3 {
  font-size: 1.5rem;
  color: #4B5563;
  margin-bottom: 24px;
  font-weight: 500;
}


.home p {
  max-width: 620px;
  font-size: 1.1rem;
  line-height: 1.7;
  color: #4B5563;
  margin-bottom: 40px;
}

.home p strong {
  color: #1E3A8A; 
}


.btn {
  display: inline-block;
  padding: 12px 28px;
  background-color: #1E3A8A;
  color: #ffffff;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 500;
  transition: background-color 0.3s ease, transform 0.2s ease;
}

.btn:hover {
 background-color: #2563EB;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

/* padding inferieur sur mobile  */
@media (max-width: 768px) {
  .home {
    padding: 60px 20px;
  }
}

/* About Section */
.about {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 80px 20px;
  background-color: #FFFFFF; 
}

.about h2 {
  font-size: 2.5rem;
  margin-bottom: 24px;
  color: #1E3A8A;
}

.about p {
  max-width: 620px;
  font-size: 1.1rem;
  line-height: 1.7;
  color: #4B5563;
}

.about p strong {
  color: #1E3A8A;
}

.about {
  padding-bottom: 100px;
}

@media (max-width: 768px) {
  .about h2 {
    font-size: 2rem;
  }

  .about p {
    font-size: 1rem;
  }
}




/* section projects */
/* --- Projects Section --- */
.projects {
  padding: 100px 20px;
  background-color: #F9FAFB;
  text-align: center;
}

.projects h2 {
  font-size: 2.5rem;
  margin-bottom: 40px;
  color: #1E3A8A; /* couleur de ton thème bleu */
}

/* Container for all project cards */
.project-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
}

/* Individual project card */
.project-card {
  background-color: #ffffff;
  border-radius: 12px;
  padding: 24px;
  width: 300px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-align: left;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0,0,0,0.15);
}

/* Project title and badge */
.project-card h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  color: #111111;
}

.badge {
  background-color: #1E3A8A; /* bleu thème */
  color: #ffffff;
  font-size: 0.8rem;
  padding: 2px 8px;
  border-radius: 6px;
  margin-left: 10px;
}

/* Project description */
.project-card p {
  font-size: 0.95rem;
  color: #4B5563;
  margin-bottom: 16px;
  line-height: 1.5;
}

/* Tech stack styling */
.tech-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.tech {
  font-size: 0.8rem;
  padding: 4px 8px;
  border-radius: 6px;
}

.tech-current {
  background-color: #D1E8FF; /* bleu clair */
  color: #1E3A8A;
  font-weight: 500;
}

.tech-future {
  background-color: #E5E7EB; /* gris clair */
  color: #6B7280;
  font-weight: 500;
}

/* Project button */
.project-card .btn {
  display: inline-block;
  text-decoration: none;
  color: #ffffff;
  background-color: #1E3A8A;
  padding: 10px 20px;
  border-radius: 6px;
  font-weight: 500;
  transition: background-color 0.3s ease, transform 0.2s ease;
}

.project-card .btn:hover {
  background-color: #1D4ED8;
  transform: translateY(-2px);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .project-list {
    flex-direction: column;
    align-items: center;
  }

  .project-card {
    width: 90%;
  }
}




/* section contact */
.contact {
  padding: 40px 20px;
  text-align: center;
  background-color: #FFFFFF; 
}

.contact h2 {
  font-size: 2.5rem;
  margin-bottom: 24px;
  color: #1E3A8A;
}

.contact p {
  font-size: 1.1rem;
  color: #4B5563; 
  margin-bottom: 16px;
}

.contact a {
  color: #1E3A8A; 
  text-decoration: none;
  transition: color 0.3s ease;
}

.contact a:hover {
  color: #2563EB; 
}

.contact .btn 
{
  margin-top: 24px;
  background-color: #1E3A8A; 
  padding: 12px 28px;
  border-radius: 6px;
  color: #ffffff;
  text-decoration: none;
  font-weight: 500;
  transition: background-color 0.3s ease, transform 0.2s ease;
}

.contact .btn:hover {
  /* background-color: #2563EB; */
  transform: translateY(-2px);
}

@media (max-width: 768px) {
  .contact {
    padding: 60px 20px;
  }

  .contact h2 {
    font-size: 2rem;
  }

  .contact p {
    font-size: 1rem;
  }
}


footer {
  background-color: #1E3A8A; 
  color: #E5E7EB; 
  padding: 30px 20px;
  text-align: center;
}

footer hr {
  border: none;
  height: 1px;
  background: linear-gradient(
    to right,
    transparent,
    rgba(255,255,255,0.4),
    transparent
  );
  margin: 10px 0;
}


footer .footer-container {
  max-width: 1200px;
  margin: 0 auto;
}

footer p {
  margin-bottom: 16px;
  font-size: 0.95rem;
}

footer .social-icons {
  display: flex;
  justify-content: center;
  gap: 20px; 
}

footer .social-icons a img {
  width: 24px;
  height: 24px;
  filter: brightness(100%); 
  transition: transform 0.2s ease, filter 0.2s ease;
}

footer .social-icons a:hover img {
  transform: translateY(-3px);
  filter: brightness(120%);
}


footer {
  background-color: #1E3A8A;
  color: #E5E7EB;
  padding: 30px 20px;
  text-align: center;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
}

footer p {
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.social-icons {
  display: flex;
  justify-content: center;
  gap: 25px;
}

.social-icons a {
  color: #E5E7EB;
  font-size: 1.5rem;
  transition: transform 0.2s ease, color 0.3s ease;
}

.social-icons a:hover {
  color: #2563EB; 
  transform: translateY(-3px);
}



/* All the Medias queries... */
/* SMARTPHONES (≤ 767px) */
@media (max-width: 767px) {
    /* Targets the navigation bar on small screens */
    nav {
        flex-direction: row;
        /* Stacks the logo above the menu on small screens */

        padding: 20px 20px;
        /* Mobile: compact and comfortable */

        justify-content: space-between;
        /* add space between logo and menu toggle button */

        align-items: center;
        /* put logo and menu toggle button on the same line  */
    }

    /* Targets the navigation links list */
    nav ul {
        /* Displays menu links vertically */
        flex-direction: column;

        /* Centers links horizontally */
        align-items: center;

        /* Adds space between the logo and the menu */
        margin-top: 20px;
    }

    .menu-toggle
    /* Targets the menu toggle button */
    {
        display: block;
        /* Shows the menu toggle button on mobile */

        color: #111827;

        font-size: 28px;

        background: none;

        border: none;

        cursor: pointer;
    }

    .nav-menu
    /* Targets the navigation menu */
    {
        display: none;
        /* Hides the menu by default on mobile */

        width: 100%;
        /* Full width for better touch targets */
    }

    .nav-menu.active
    /* Targets the active state of the navigation menu */
    {
        display: flex;
        /* Displays the menu when active */

        flex-direction: column;
        /* Stacks menu items vertically */

        gap: 10px;
        /* Adds spacing between menu items */

        align-items: center;
        /* Centers menu items horizontally */
    }
}

/* TABLETS (768px → 991px) */
@media (min-width: 768px) and (max-width: 991px) {
    /* Navigation bar layout for tablets */
    nav {
        /* Aligns logo and menu on the same row */
        flex-direction: row;
    }

    /* Menu links container */
    nav ul {
        /* Displays menu links horizontally */
        flex-direction: row;

        /* Adds equal spacing between each menu item */
        gap: 20px;
    }
}

/* DESKTOP (≥ 992px) */
@media (min-width: 992px) {
    /* Menu links on large screens */
    nav ul {
        /* Increases spacing for better readability */
        gap: 30px;
    }

    .menu-toggle
    /* Hides the menu toggle button on desktop */
    {
        display: none;
    }
}