/* ===========================
   VARIABLES GLOBALES
=========================== */
:root {
  --color-bg: #f9f9f9;
  --color-text: #333;
  --color-primary: #007bff;
  --color-accent: #b700ff;
  --font-main: 'Segoe UI', Roboto, sans-serif;
}

/* ===========================
   RESET DE BASE
=========================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
    height:100vh;
}

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  height:100%;
}

/* ===========================
   HEADER
=========================== */
.header {
  background: #fff;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
}

.header nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

.header nav a {
  text-decoration: none;
  color: var(--color-text);
  transition: color 0.3s;
}

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

/* ===========================
   SECTIONS
=========================== */
.hero {
  text-align: center;
  padding: 5rem 1rem;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: white;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem;
}

/* ===========================
   PROJETS
=========================== */
.projects {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  padding: 3rem 0;
}

.project-card {
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  overflow: hidden;
  transition: transform 0.3s;
}

.project-card:hover {
  transform: translateY(-5px);
}

.project-card img {
  width: 100%;
  height: 180px;
  object-fit: cover;
}

.project-card h3 {
  margin: 1rem;
  color: var(--color-primary);
}

.project-card p {
  margin: 0 1rem 1.5rem;
  color: #555;
}

/* ===========================
   FOOTER
=========================== */
.footer {
  text-align: center;
  padding: 2rem 1rem;
  background: #222;
  color: #ddd;
  font-size: 0.9rem;
  position: absolute;
  bottom: 0;
  width: 100%;
}