/* ======================
   ROOT VARIABLES
   ====================== */
:root {
  --text: #060d08;
  --background: #f6fcf8;
  --primary: #3dd374;
  --secondary: #89efae;
  --accent: #48f486;

  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;

  --radius: 4px;

  --font-title: "Montserrat", sans-serif;
  --font-text: "Poppins", sans-serif;

  --shadow-sm: 0 2px 8px rgba(6, 13, 8, 0.1);
  --shadow-md: 0 4px 12px rgba(6, 13, 8, 0.15);
}

/* ======================
   RESET & BASE STYLES
   ====================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

/* ======================
   TYPOGRAPHY
   ====================== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-title);
  font-weight: 700;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--accent);
}

/* ======================
   LAYOUT
   ====================== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  width: 100%;
}

/* ======================
   HEADER & NAVIGATION
   ====================== */
.header {
  background-color: var(--background);
  border-bottom: 1px solid rgba(61, 211, 116, 0.1);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.navbar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) 0;
}

.logo {
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  transition: color 0.3s ease;
}

.logo:hover {
  color: var(--primary);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--spacing-lg);
}

.nav-links a {
  font-family: var(--font-title);
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
}

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

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

/* ======================
   BUTTONS
   ====================== */
.btn {
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-title);
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-block;
  text-align: center;
}

.btn-primary {
  background-color: var(--primary);
  color: white;
  box-shadow: 0 4px 12px rgba(61, 211, 116, 0.3);
}

.btn-primary:hover {
  background-color: var(--accent);
  box-shadow: 0 6px 16px rgba(61, 211, 116, 0.4);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: var(--secondary);
  color: var(--text);
  box-shadow: 0 2px 8px rgba(137, 239, 174, 0.3);
}

.btn-secondary:hover {
  color: var(--text);
  background-color: var(--accent);
  box-shadow: 0 4px 12px rgba(137, 239, 174, 0.4);
  transform: translateY(-2px);
}

.btn-small {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.9rem;
}

/* ======================
   HERO SECTION
   ====================== */
.hero {
  padding: var(--spacing-2xl) 0;
  min-height: 60vh;
  height: calc(100vh - 70px);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    135deg,
    var(--background) 0%,
    rgba(61, 211, 116, 0.05) 100%
  );
}

.hero-content {
  text-align: center;
  max-width: 800px;
  margin: auto;
}

.hero-title {
  margin-bottom: var(--spacing-md);
  color: var(--text);
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  margin-bottom: var(--spacing-xl);
  color: var(--text);
  opacity: 0.9;
  line-height: 1.8;
}

.hero-profile {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  border: 4px solid var(--primary);
  object-fit: cover;
  margin-bottom: var(--spacing-lg);
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.hero .btn {
  font-size: 1rem;
  padding: var(--spacing-md) var(--spacing-lg);
}

/* ======================
   SECTIONS
   ====================== */
.section {
  padding: var(--spacing-2xl) 0;
}

.section-title {
  margin-bottom: var(--spacing-xl);
  text-align: center;
  color: var(--text);
}

.section-text {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
  font-size: 1.05rem;
  opacity: 0.9;
  line-height: 1.8;
}

/* Alternating backgrounds */
.sobre {
  background-color: rgba(67, 110, 83, 0.1);
}

.habilidades {
  background-color: white;
}

.projetos {
  background-color: rgba(67, 110, 83, 0.1);
}

.contato {
  background-color: white;
}

/* ======================
   SKILLS SECTION
   ====================== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  max-width: 1000px;
  margin: 0 auto;
}

.skill-item {
  padding: var(--spacing-lg);
  background-color: white;
  border-radius: var(--radius);
  border-left: 4px solid var(--primary);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.skill-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.skill-item h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--primary);
}

.skill-item h3 span {
  margin-right: var(--spacing-sm);
}

.skill-item p {
  font-size: 0.95rem;
  opacity: 0.8;
}

/* ======================
   PROJECTS SECTION
   ====================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--spacing-lg);
  max-width: 1200px;
  margin: 0 auto;
}

.project-card {
  background-color: white;
  border-radius: var(--radius);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
  border: 1px solid rgba(61, 211, 116, 0.1);
}

.project-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-8px);
  border-color: var(--primary);
}

.project-header {
  margin-bottom: var(--spacing-md);
}

.project-title {
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
}

.project-description {
  margin-bottom: var(--spacing-md);
  font-size: 0.95rem;
  opacity: 0.85;
  line-height: 1.6;
  flex-grow: 1;
}

.project-tech {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
  flex-wrap: wrap;
}

.tech-tag {
  display: inline-block;
  background-color: rgba(61, 211, 116, 0.1);
  color: var(--primary);
  padding: 4px 12px;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 500;
}

.project-card .btn {
  align-self: flex-start;
}

/* ======================
   CONTACT SECTION
   ====================== */
.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  max-width: 900px;
  margin: 0 auto;
}

.contact-link {
  background-color: white;
  padding: var(--spacing-lg);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  border: 1px solid rgba(61, 211, 116, 0.1);
  color: var(--text);
  font-weight: 500;
}

.contact-link:hover {
  background-color: rgba(61, 211, 116, 0.05);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  color: var(--primary);
}

.contact-link span {
  font-size: 1.5rem;
  color: var(--primary);
}

/* ======================
   FOOTER
   ====================== */
.footer {
  background-color: var(--text);
  color: white;
  padding: var(--spacing-lg) 0;
  text-align: center;
  margin-top: var(--spacing-2xl);
}

/* ======================
   RESPONSIVE DESIGN
   ====================== */
@media (max-width: 768px) {
  .nav-links {
    gap: var(--spacing-md);
    font-size: 0.9rem;
  }

  .hero {
    min-height: 50vh;
    padding: var(--spacing-xl) 0;
  }

  .hero-subtitle {
    font-size: 1.05rem;
  }

  .section {
    padding: var(--spacing-xl) 0;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .contact-info {
    grid-template-columns: 1fr;
  }

  .skills-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .navbar-content {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .nav-links {
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero {
    padding: var(--spacing-xl) 0;
  }

  .section {
    padding: var(--spacing-lg) 0;
  }

  .hero .btn {
    font-size: 0.95rem;
  }

  .contact-link {
    flex-direction: column;
    text-align: center;
  }
}