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

html, body {
  height: 100%;
  font-family: sans-serif;
  background-color: var(--bg);
  color: var(--text);
  overflow-x: hidden;
}

/* Theme Variables */
:root {
  --bg: #ffffff;
  --text: #111;
  --nav-bg: rgba(255, 255, 255, 0.85);
}

[data-theme="dark"] {
  --bg: #111;
  --text: #f0f0f0;
  --nav-bg: rgba(0, 0, 0, 0.85);
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background-color: var(--nav-bg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5em 1em;
  font-family: 'IBM Plex Mono', monospace;
  z-index: 1000;
}

.nav-title {
  font-size: 1.5em;
  text-transform: lowercase;
  cursor: pointer;
  transition: text-transform 0.3s;
}

.nav-title:hover {
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1em;
}

.nav-links a {
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: hsl(calc(360 * var(--rand)), 100%, 60%);
}

/* Toggle */
.toggle-wrapper {
  position: relative;
  width: 50px;
  height: 25px;
}

.toggle-wrapper input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-label {
  position: absolute;
  cursor: pointer;
  background-color: #555;
  width: 100%;
  height: 100%;
}

/* Modals */
.modal, .filter-modal, .lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,0.8);
  color: #fff;
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 999;
}

.modal-content, .filter-content {
  background: #222;
  padding: 2em;
  max-width: 400px;
  width: 90%;
  position: relative;
}

.close-btn, .lightbox-close {
  position: absolute;
  top: 10px;
  right: 15px;
  cursor: pointer;
  font-size: 1.5em;
}

/* Lightbox */
.lightbox img {
  max-width: 90vw;
  max-height: 80vh;
  display: block;
  margin: auto;
}

/* Filter Button */
.filter-button {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--nav-bg);
  padding: 0.5em 1em;
  cursor: pointer;
  font-family: 'IBM Plex Mono', monospace;
  z-index: 999;
}

/* Filters */
.filters button {
  background: #333;
  color: #fff;
  padding: 0.5em 1em;
  margin: 0.2em;
  border: none;
  cursor: pointer;
}

.filters button.active {
  background: #fff;
  color: #000;
}

/* Masonry Gallery */
.masonry-container {
  margin-top: 70px;
  column-count: 3;
  column-gap: 0;
}

.project-image {
  width: 100%;
  display: block;
  margin: 0;
  padding: 0;
  cursor: pointer;
}

.image-wrapper {
  break-inside: avoid;
  margin: 0;
  position: relative;
}

.image-desc {
  position: absolute;
  bottom: 5px;
  left: 5px;
  background: rgba(0,0,0,0.6);
  color: white;
  padding: 0.2em 0.5em;
  font-size: 0.8em;
  display: none;
}

.image-wrapper:hover .image-desc {
  display: block;
}

/* Responsive */
@media (max-width: 768px) {
  .masonry-container {
    column-count: 2;
  }
}

@media (max-width: 480px) {
  .masonry-container {
    column-count: 1;
  }
}