/* ================= BASE ================= */
:root {
  --bg-color: #f5f5f5;
  --bg-alt-color: #f3f3f3;
  --text-color: #374151;
  --text-dark: #222;
  --heading-color: #000;
  --accent-color: #2563eb;
  --border-color: #ddd;
  --white: #ffffff;
  --shadow-color: rgba(0, 0, 0, 0.1);
  --overlay-color: rgba(0, 0, 0, 0.5);
  --link-hover-color: #1d4ed8;
  --footer-link-color: rgb(108, 0, 0);
  --font-family: "Montserrat", sans-serif;
  --card-bg: #fff;
  --card-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

body {
  margin: 0;
  font-family: var(--font-family);
  background: var(--bg-alt-color);
  color: var(--text-dark);
  overflow-x: hidden;
}

html {
  scroll-behavior: smooth;
}

h1,
h2,
h3,
h4 {
  line-height: 1.3;
}

p {
  line-height: 1.6;
}

.projects-hero {
  text-align: center;
  padding: 3rem 1rem;
  background: #fff;
}

.projects-hero h1 {
  font-size: 2.2rem;
  margin-bottom: 0.6rem;
}

.projects-hero p {
  color: #555;
  font-size: 1.05rem;
}

/* ================= FILTER BUTTONS ================= */
.filter-buttons {
  text-align: center;
  margin: 2rem 0;
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.filter-buttons button {
  padding: 0.8rem 1.5rem;
  border: none;
  border-radius: 50px;
  background: #fff;
  color: var(--text-dark);
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: 600;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
  font-family: var(--font-family);
}

.filter-buttons button.active,
.filter-buttons button:hover {
  background: var(--accent-color);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
}

.filter-buttons button:focus {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}

/* ================= PROJECT CARDS ================= */
.projects-grid {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  max-width: 1000px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.project-card {
  background: #fff;
  padding: 1.5rem;
  margin-bottom: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: row;
  gap: 1.5rem;
  align-items: flex-start;

  opacity: 1;
  transform: translateY(0);
  max-height: 1000px;
  overflow: hidden;
  transition: opacity 0.4s ease, transform 0.4s ease, max-height 0.4s ease,
    margin 0.4s ease, padding 0.4s ease;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}
.project-card.hide {
  opacity: 0;
  transform: translateY(20px);
  max-height: 0;
  margin: 0;
  padding: 0;
  pointer-events: none;
}

.project-image {
  flex: 1;
  max-width: 45%;
  min-width: 250px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.project-image img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.3s ease;
}

.project-card:hover .project-image img {
  transform: scale(1.02);
}

.project-description {
  flex: 1.5;
  display: flex;
  flex-direction: column;
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
}

.project-header h3 {
  font-size: 1.5rem;
  margin: 0;
  color: var(--heading-color);
}

.project-links {
  display: flex;
  gap: 0.8rem;
}

.project-links a {
  color: var(--text-dark);
  font-size: 1.3rem;
  transition: color 0.3s, transform 0.3s;
  text-decoration: none;
}

.project-links a:hover {
  color: var(--accent-color);
  transform: scale(1.1);
}

.project-technologies {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.tech-pill {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #fff;
}

/* colors for language tags */
.tech-pill.html {
  background-color: #e34c26;
}
.tech-pill.css {
  background-color: #264de4;
}
.tech-pill.javascript,
.tech-pill.js {
  background-color: #f7df1e;
  color: #000;
}
.tech-pill.python {
  background-color: #3776ab;
}
.tech-pill.react {
  background-color: #61dafb;
  color: #000;
}
.tech-pill.scikit-learn {
  background-color: #f7931e;
}



.project-card hr {
  border: 0;
  border-top: 1px solid #eee;
  margin: 1rem 0;
  width: 100%;
}

.project-card p {
  color: #555;
  font-size: 0.95rem;
  margin: 0;
}



/* Responsiveness */
@media (max-width: 768px) {
  .project-card {
    flex-direction: column;
  }

  .project-image {
    max-width: 100%;
    min-width: 100%;
    margin-bottom: 1rem;
  }

  .projects-hero {
    padding: 2rem 1rem;
  }

  .projects-hero h1 {
    font-size: 1.8rem;
  }

  .projects-grid {
    padding: 1rem;
    gap: 1.5rem;
  }
}

@media (max-width: 480px) {
  .project-header h3 {
    font-size: 1.2rem;
  }

  .filter-buttons button {
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
  }
}