@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Lato:wght@300;400;700&display=swap');
:root {
  --bg-color: #ffffff;

  --text-color: #111;
  --secondary-text: #999;
  --muted-text: #777;

  --header-bg: #ffffff;
  --footer-bg: #ffffff;

  --sidebar-bg: #111;
  --sidebar-text: #ccc;
  --sidebar-hover: #fff;

  --card-bg: #ffffff;

  --border-color: #eee;
  --border-light: #ccc;

  --overlay-dark: rgba(0,0,0,0.65);
  --screen-overlay: rgba(0,0,0,0.5);

  --button-bg: #ffffff;
  --button-text: #111;

  --hover-text: #000;
  --card-dim: 0;
}
:root.dark-mode {
  --bg-color: #111;

  --text-color: #f5f5f5;
  --secondary-text: #bbb;
  --muted-text: #888;

  --header-bg: #111;
  --footer-bg: #111;

  --sidebar-bg: #2a2a2a;
  --sidebar-text: #ccc;
  --sidebar-hover: #fff;

  --card-bg: #1e1e1e;

  --border-color: #333;
  --border-light: #555;

  --overlay-dark: rgba(0,0,0,0.35);
  --screen-overlay: rgba(0,0,0,0.7);

  --button-bg: #f5f5f5;
  --button-text: #111;

  --hover-text: #fff;
  --card-dim: 0.25;
}
/* header */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Lato', sans-serif;
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);

  transition:
    background-color 0.3s ease,
    color 0.3s ease;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 25px 50px;
  background: var(--header-bg);
  z-index: 1000;
  transition: background-color 0.3s ease, color 0.3s ease;
  font-family: 'Lato', sans-serif;
}

.logo {
  font-size: 28px;
  font-weight: bold;
  width: 100px;
  height: auto;
}

nav a {
  text-decoration: none;
  color: var(--secondary-text);
  font-size: 14px;
  letter-spacing: 2px;
}

.nav-list {
  list-style: none;

  display: flex;
  align-items: center;

  gap: 30px;

  margin-left: auto;
}

.nav-list a {
  text-decoration: none;
  color: var(--secondary-text);

  font-size: 14px;
  letter-spacing: 1px;

  position: relative;
}

.nav-list li {
  position: relative;
}


.nav-list a::after {
  content: "";
  position: absolute;
  width: 0%;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--secondary-text);
  transition: width 0.3s ease;
}

.nav-list a:hover::after {
  width: 100%;
}

.nav-list a:hover {
  color: var(--hover-text);
}

.nav-darkmode-button {
  margin-right: 30px;
  display: flex;
  align-items: center;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;

  background: var(--sidebar-bg);
  list-style: none;
  padding: 10px 0;
  margin: 0;
  border-radius: 8px;
  min-width: 180px;

  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  pointer-events: none;

  transition: 0.3s ease;
  z-index: 1001;
}

.dropdown-menu li a {
  display: block;
  padding: 10px 20px;
  margin: 0;
  color: var(--sidebar-text);
}

.dropdown-menu li a:hover {
  background: var(--border-color);
  color: var(--sidebar-hover);
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

.dropdown > a::after {
  content: " ▼";
  font-size: 10px;
}

/* footer */
footer {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 25px 50px;
  background: var(--footer-bg);
  border-top: 1px solid var(--border-color);
  font-family: 'Poppins', sans-serif;
  color: var(--secondary-text);
  text-align: center;
}

footer a {
	color: var(--text-color);
}

/* home page layout */

.large {
  grid-column: span 2;
  grid-row: span 2;
}

.wide {
  grid-column: span 2;
}

.tall {
  grid-row: span 2;
}

.small {
  grid-column: span 1;
  grid-row: span 1;
}

.overlay {
  position: absolute;
  bottom: 20px;
  left: 20px;
  color: var(--sidebar-hover);
}

.overlay-heading,
.overlay-subtitle {
  margin-bottom: 10px;
}

.overlay button {
  padding: 8px 16px;
  border: none;
  background: var(--button-bg);
  color: var(--button-text);
  cursor: pointer;
}

.card {
  display: block;
  position: relative;
  text-decoration: none;
  color: white;
  overflow: hidden;

  border-radius: 15px;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--overlay-dark);
  opacity: var(--card-dim);
  transition: 0.3s;
  border-radius: 15px;
}

.card-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;

  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s ease;
  text-align: center;
  letter-spacing: 2px;
  font-family: 'Poppins', sans-serif;
}

.card-overlay p {
  font-family: 'Poppins', sans-serif;
  font-weight: 100;
}

.card:hover::before {
  opacity: 0.7;
}

.card:hover .card-overlay {
  opacity: 1;
  transform: translateY(0);
}

.card:hover {
  transform: scale(1.02);
  transition: transform 0.3s ease;
}


.project-link {
  display: inline-block;
  margin-bottom: 30px;
  color: var(--secondary-text);
  text-decoration: none;
}

.project-link:hover {
  text-decoration: underline;
}

hr {
  border: none;
  border-top: 1px solid var(--border-light);
  margin: 30px 0;
}

.services p {
  margin-bottom: 10px;
  color: var(--muted-text);
}

.menu-btn {
  font-size: 24px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-color);
}

.sidebar {
  position: fixed;
  top: 0;
  right: -300px;
  width: 300px;
  height: 100vh;
  background: var(--sidebar-bg);

  display: flex;
  flex-direction: column;

  transition: right 0.3s ease;
  z-index: 2000;
}

.sidebar-open {
  right: 0;
}

.close-btn {
  align-self: flex-end;
  font-size: 20px;
  background: none;
  border: none;
  color: var(--sidebar-hover);
  cursor: pointer;
  margin-bottom: 30px;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 40px;
  padding-left: 25px;
  padding-right: 20px;
}

.sidebar-nav a {
  color: var(--sidebar-text);
  text-decoration: none;
  font-size: 15px;
  font-family: 'Lato', sans-serif;
}

.sidebar-nav a:hover {
  color: var(--sidebar-hover);
}

.top-nav {
  display: flex;
  gap: 40px;
}

.top-nav a {
  margin-left: 40px;
  text-decoration: none;
  color: var(--text-color);
  font-size: 14px;
  letter-spacing: 1px;
  font-weight: 500;
  position: relative;
}

.top-nav a::after {
  content: "";
  position: absolute;
  width: 0%;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--secondary-text);
  transition: width 0.3s ease;
}

.top-nav a:hover::after {
  width: 100%;
}

.top-nav a:hover {
  color: var(--hover-text);
}

.overlay {
  position: fixed;
  inset: 0;
  background: var(--screen-overlay);

  opacity: 0;
  pointer-events: none;
  transition: 0.3s;
  z-index: 1500;
}

.overlay-visible {
  opacity: 1;
  pointer-events: auto;
}

@media (max-width: 900px) {
  .grid-container {
    grid-template-columns: 1fr;
    grid-auto-rows: auto;
  }
  .card {
    grid-column: auto !important;
    grid-row: auto !important;
    height: 250px;
  }
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.theme-toggle {
  width: 40px;
  height: 40px;

  display: flex;
  align-items: center;
  justify-content: center;

  border: none;
  background: none;
  cursor: pointer;

  margin-left: 40px;
  
  transition: 
    transform 0.25s ease,
    background-color 0.25s ease,
    border-color 0.25s ease,
    box-shadow 0.25s ease;
}

.theme-toggle img {
  width: 36px;
  height: 36px;
  display: block;
  
  transition: transform 0.25s ease;
}

.theme-toggle:hover {
  transform: translateY(-2px) scale(1.1);
}

.portfolio-carousel {
    width: 100%;
    overflow: hidden;
    padding: 40px 0;
}

.carousel-track {
    display: flex;
    gap: 40px;
    width: max-content;

    animation: scrollProjects 100s linear infinite;
}

.carousel-track:hover {
    animation-play-state: paused;
}

.slide {
    flex-shrink: 0;

    width: 650px;
	height: 100%;
    text-decoration: none;

    transition: transform 0.3s ease;
}

.slide.featured {
    width: 650px;
}

.slide img,
.slide video {
    width: 100%;
    height: 400px;

    object-fit: cover;
    border-radius: 12px;

    display: block;
}

.slide:hover {
    transform: scale(1.03);
}

@keyframes scrollProjects {
    from {
        transform: translateX(0);
    }

    to {
        transform: translateX(calc(-50% - 20px));
    }
}

.slide-info {
	font-family: 'Lato', sans-serif;
    text-align: center;
    margin-top: 15px;
    color: var(--text-color);
}

.slide-info p {
	font-family: 'Lato', sans-serif;
    color: var(--secondary-text);
    font-size: 14px;
	font-weight: 100;
}

.slide-info h3 {
	font-family: 'Lato', sans-serif;
    font-weight: 500;
	font-size: 14px;
}

.hero-intro {
	font-family: 'Lato', sans-serif;
    text-align: center;
    min-height: 2em;

    font-size: 1rem;
    font-weight: 300;
	color: var(--secondary-text);
}



@keyframes blink {
    50% {
        opacity: 0;
    }
}