body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  background: #f4f4f4; /* back to default */
  color: #333;
   line-height: 1.6;
}

.certificate-caption {
  text-align: center;
  font-style: italic;
  font-size: 0.9em;
  color: #555;
  margin-top: 0.5em;
}


.certificate-container img {
  max-width: 300px;
  width: 100%;
  border-radius: 8px;
}

.profile-img, .certificate-img {
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}


header {
  background: #62b38c;
  color: white;
  text-align: center;
  padding: 2em 1em;
  position: relative;
}

.resume-btn {
  display: inline-block;
  margin-top: 10px;
  padding: 0.5em 1em;
  background: white;
  color: #62b38c;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: 0.3s ease;
}

.resume-btn:hover {
  background: #409f75;
  color: white;
}

section {
  padding: 2em;
  max-width: 900px;
  margin: auto;
}

.profile-header {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 1em;
  flex-wrap: wrap;
  text-align: center;
  margin-bottom: 1em;
}

.profile-img {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid white;
}
.video-container {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
  max-width: 100%;
  margin-top: 1em;
}
.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}


/* === FILTER BUTTONS === */
.filter-buttons {
  text-align: center;
  margin-bottom: 1em;
}

.filter-buttons button {
  margin: 0.3em;
  padding: 0.5em 1em;
  border: none;
  background: #62b38c;
  color: white;
  cursor: pointer;
  border-radius: 5px;
  font-weight: bold;
  transition: background 0.3s ease, transform 0.1s;
}

.filter-buttons button:hover {
  background: #409f75;
}

.filter-buttons button:active {
  transform: scale(0.97);
}

/* === PROJECTS === */
.project {
  background: white;
  padding: 1em;
  margin-bottom: 1.5em;
  border-left: 5px solid #62b38c;
  box-shadow: 0 0 10px rgba(0,0,0,0.05);
  transition: transform 0.3s ease;
}

.project:hover {
  transform: translateY(-3px);
}

.project img {
  width: 100%;
  max-height: 200px;
  object-fit: cover;
  margin-bottom: 10px;
  border-radius: 5px;
}

/* === CERTIFICATE IMAGE === */
#certificate img {
  box-shadow: 0 2px 12px rgba(0,0,0,0.1);
  border-radius: 10px;
  max-width: 100%;
  height: auto;
  margin-top: 1em;
}

/* === TEXT === */
a {
  color: #62b38c;
  text-decoration: none;
  font-weight: bold;
}

a:hover {
  text-decoration: underline;
  color: #409f75;
}

.about p {
  line-height: 1.6;
  font-size: 1.1em;
  margin-top: 0.5em;
}

.contact p {
  margin: 0.4em 0;
}

/* === FOOTER === */
footer {
  text-align: center;
  padding: 1em;
  background: #222;
  color: white;
  font-size: 0.9em;
}

footer a {
  color: #76ff03;
  text-decoration: underline;
}

footer a:hover {
  color: #b0ff57;
}

/* === DARK MODE === */
body.dark-mode {
  background: #1c1c1c;
  color: #f0f0f0;
}

body.dark-mode header {
  background: #333;
  color: #fff;
}

body.dark-mode .project {
  background: #2b2b2b;
  border-left-color: #62b38c;
}

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

body.dark-mode .resume-btn {
  background: #62b38c;
  color: white;
}

/* === TOGGLE SWITCH === */
.toggle-container {
  margin-top: 1em;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5em;
}

.toggle-label {
  font-size: 0.9em;
}

.switch {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 24px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0; left: 0;
  right: 0; bottom: 0;
  background-color: #ccc;
  transition: 0.4s;
  border-radius: 24px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: 0.4s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: #62b38c;
}

input:checked + .slider:before {
  transform: translateX(26px);
}

/* === MOBILE RESPONSIVE === */
@media (max-width: 600px) {
  header h1 {
    font-size: 1.8em;
  }

  .resume-btn {
    display: block;
    margin: 10px auto 0;
  }

  .project img {
    max-height: 150px;
  }

  .profile-header {
    flex-direction: column;
  }
}