/*
Theme Name: Data Science Portfolio
Theme URI: https://example.com
Description: Tema profissional para portfólio de analista e cientista de dados
Version: 1.0
Author: Data Science
Author URI: https://example.com
License: GPL v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: data-science-portfolio
Domain Path: /languages
*/

/* ============================================
   RESET E VARIÁVEIS
   ============================================ */

:root {
  --primary: #1e3a5f;
  --primary-light: #2d5a8c;
  --accent: #06b6d4;
  --accent-light: #22d3ee;
  --background: #fafbfc;
  --background-light: #f3f4f6;
  --text-dark: #1f2937;
  --text-light: #6b7280;
  --border: #e5e7eb;
  --white: #ffffff;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text-dark);
  background-color: var(--background);
  line-height: 1.6;
}

/* ============================================
   TIPOGRAFIA
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1rem;
}

h1 {
  font-size: 3.5rem;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2.25rem;
}

h3 {
  font-size: 1.875rem;
}

h4 {
  font-size: 1.5rem;
}

h5 {
  font-size: 1.25rem;
}

h6 {
  font-size: 1rem;
}

p {
  margin-bottom: 1rem;
}

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

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

/* ============================================
   CONTAINER E LAYOUT
   ============================================ */

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 640px) {
  .container {
    padding: 0 1.5rem;
  }
}

@media (min-width: 1024px) {
  .container {
    padding: 0 2rem;
  }
}

/* ============================================
   NAVEGAÇÃO
   ============================================ */

.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: var(--white);
  box-shadow: var(--shadow);
  border-bottom: 1px solid var(--border);
}

.navbar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-dark);
}

.navbar-brand-icon {
  width: 2.5rem;
  height: 2.5rem;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
}

.navbar-menu {
  display: none;
  list-style: none;
  gap: 2rem;
}

@media (min-width: 768px) {
  .navbar-menu {
    display: flex;
  }
}

.navbar-menu a {
  color: var(--text-dark);
  font-weight: 500;
  transition: color 0.3s ease;
}

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

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.5rem;
}

@media (max-width: 767px) {
  .navbar-toggle {
    display: block;
  }
  
  .navbar-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--white);
    flex-direction: column;
    padding: 1rem;
    border-top: 1px solid var(--border);
  }
  
  .navbar-menu.active {
    display: flex;
  }
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary) 0%, #0f2744 100%);
  background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(6,182,212,0.1)" fill-opacity="1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,144C960,149,1056,139,1152,128C1248,117,1344,107,1392,101.3L1440,96L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
  background-size: cover;
  background-position: center;
  overflow: hidden;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.3);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--white);
  max-width: 48rem;
  margin: 0 auto;
  animation: fadeInUp 1s ease-out;
}

.hero h1 {
  color: var(--white);
  margin-bottom: 1.5rem;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero p {
  font-size: 1.25rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 2rem;
  text-shadow: 0 1px 5px rgba(0, 0, 0, 0.2);
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 2rem;
}

@media (min-width: 640px) {
  .hero-buttons {
    flex-direction: row;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  border-radius: 0.5rem;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--accent);
  color: var(--white);
}

.btn-primary:hover {
  background-color: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.2);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.3);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  max-width: 32rem;
  margin: 0 auto;
}

.stat-card {
  background-color: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 0.5rem;
  padding: 1rem;
}

.stat-value {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--white);
}

.stat-label {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 0.5rem;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   SEÇÕES
   ============================================ */

section {
  padding: 5rem 0;
}

section h2 {
  margin-bottom: 3rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

section h2::before {
  content: '';
  width: 0.5rem;
  height: 2rem;
  background-color: var(--accent);
  border-radius: 0.25rem;
}

.section-description {
  color: var(--text-light);
  font-size: 1.125rem;
  margin-bottom: 3rem;
  max-width: 48rem;
}

/* ============================================
   CARDS
   ============================================ */

.card {
  background-color: var(--white);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  overflow: hidden;
  transition: all 0.3s ease;
}

.card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
  transform: translateY(-4px);
}

.card-image {
  width: 100%;
  height: 12rem;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.3);
  font-size: 3rem;
}

.card-content {
  padding: 1.5rem;
}

.card h3 {
  margin-bottom: 0.5rem;
}

.card p {
  color: var(--text-light);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.tag {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background-color: var(--background-light);
  color: var(--text-dark);
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
}

.card-link {
  color: var(--accent);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: gap 0.3s ease;
}

.card-link:hover {
  gap: 0.75rem;
}

/* ============================================
   GRID
   ============================================ */

.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================
   FORMULÁRIO DE CONTATO
   ============================================ */

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--text-dark);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(6, 182, 212, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* ============================================
   FOOTER
   ============================================ */

footer {
  background-color: #1f2937;
  color: var(--white);
  padding: 3rem 0 1rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  color: var(--white);
  margin-bottom: 1rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: rgba(255, 255, 255, 0.7);
}

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

.social-links {
  display: flex;
  gap: 1rem;
}

.social-link {
  width: 2.5rem;
  height: 2.5rem;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  transition: background-color 0.3s ease;
}

.social-link:hover {
  background-color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.7);
  margin: 0;
}

/* ============================================
   UTILITÁRIOS
   ============================================ */

.text-center {
  text-align: center;
}

.text-muted {
  color: var(--text-light);
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.py-1 { padding: 0.5rem 0; }
.py-2 { padding: 1rem 0; }
.py-3 { padding: 1.5rem 0; }
.py-4 { padding: 2rem 0; }

/* ============================================
   RESPONSIVIDADE
   ============================================ */

@media (max-width: 640px) {
  h1 {
    font-size: 2.25rem;
  }
  
  h2 {
    font-size: 1.875rem;
  }
  
  .hero {
    min-height: auto;
    padding: 2rem 0;
  }
  
  .hero-stats {
    grid-template-columns: 1fr;
  }
}