/* ===== Variáveis e base ===== */
:root {
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: #eef2ff;
  --font-display: "Poppins", sans-serif;
  --font-sans: "Inter", sans-serif;
  --radius: 0.65rem;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-900: #111827;
  --white: #ffffff;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--gray-900);
  background: var(--white);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  margin: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  font-size: inherit;
  border: none;
  background: none;
  cursor: pointer;
}

/* ===== Container ===== */
.container {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

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

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

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gray-100);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  transition: color 0.2s;
}

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

.nav-desktop {
  display: none;
  align-items: center;
  gap: 2rem;
}

.nav-desktop button {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-600);
  transition: color 0.2s;
}

.nav-desktop button:hover {
  color: var(--primary);
}

.btn-cv {
  display: none;
}

.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  color: var(--gray-600);
  transition: color 0.2s;
}

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

.menu-toggle .icon-close {
  display: none;
}

.menu-toggle[aria-expanded="true"] .icon-menu {
  display: none;
}

.menu-toggle[aria-expanded="true"] .icon-close {
  display: block;
}

@media (min-width: 768px) {
  .nav-desktop { display: flex; }
  .btn-cv { display: inline-block; }
  .menu-toggle { display: none; }
}

/* Nav mobile */
.nav-mobile {
  display: none;
  border-top: 1px solid var(--gray-100);
  background: var(--white);
}

.nav-mobile.is-open {
  display: block;
}

.nav-mobile-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1rem 0;
}

.nav-mobile button {
  text-align: left;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-600);
  padding: 0.5rem 0;
  transition: color 0.2s;
}

.nav-mobile button:hover {
  color: var(--primary);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius);
  transition: background-color 0.2s, color 0.2s, border-color 0.2s;
}

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

.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-outline {
  border: 2px solid var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary-light);
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
}

.btn-block {
  width: 100%;
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  padding-top: 5rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.4;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, var(--white), rgba(255, 255, 255, 0.9), transparent);
}

.hero-content {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: calc(100vh - 5rem);
}

.hero-text {
  width: 100%;
  padding-right: 0;
}

.eyebrow {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--primary);
  background: var(--primary-light);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: 2.25rem;
  line-height: 1.2;
  color: var(--gray-900);
  margin-bottom: 1.5rem;
  max-width: 36rem;
}

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--gray-600);
  margin-bottom: 2rem;
  line-height: 1.6;
  max-width: 32rem;
}

.hero-cta {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero-social {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.hero-social-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-600);
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  background: var(--gray-100);
  color: var(--gray-700);
  border-radius: var(--radius);
  transition: background 0.2s, color 0.2s;
}

.social-icon:hover {
  background: var(--primary);
  color: var(--white);
}

.hero-deco {
  display: none;
  position: absolute;
  right: 0;
  top: 0;
  width: 50%;
  height: 100%;
  pointer-events: none;
}

@media (min-width: 768px) {
  .hero-text { width: 50%; padding-right: 3rem; }
  .hero-title { font-size: 3rem; }
  .hero-subtitle { font-size: 1.25rem; }
  .hero-cta { flex-direction: row; }
  .hero-deco {
    display: block;
  }
  .hero-deco::before,
  .hero-deco::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    filter: blur(48px);
    opacity: 0.2;
  }
  .hero-deco::before {
    bottom: 5rem;
    right: 2.5rem;
    width: 10rem;
    height: 10rem;
    background: #bfdbfe;
  }
  .hero-deco::after {
    top: 10rem;
    right: 5rem;
    width: 8rem;
    height: 8rem;
    background: #93c5fd;
    opacity: 0.15;
  }
}

@media (min-width: 1024px) {
  .hero-title { font-size: 3.75rem; }
}

/* ===== Sections ===== */
.section {
  padding: 5rem 0;
}

.section-gray {
  background: var(--gray-50);
}

.section-title {
  font-size: 1.875rem;
  color: var(--gray-900);
  margin-bottom: 1.5rem;
}

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

.section-subtitle {
  font-size: 1.125rem;
  color: var(--gray-600);
  text-align: center;
  margin: 0 auto 4rem;
  max-width: 42rem;
}

@media (min-width: 768px) {
  .section-title { font-size: 2.25rem; }
}

/* ===== About ===== */
.about-grid {
  display: grid;
  gap: 3rem;
  align-items: center;
}

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

.about-p {
  font-size: 1.125rem;
  color: var(--gray-600);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.about-p:last-of-type {
  margin-bottom: 2rem;
}

.about-subtitle {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 1rem;
}

.about-languages {
  margin-bottom: 2rem;
}

.lang-list {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.lang-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--gray-700);
}

.lang-dot {
  width: 0.75rem;
  height: 0.75rem;
  background: var(--primary);
  border-radius: 50%;
}

.about-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--gray-100);
}

.about-card-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 1.5rem;
}

.about-info-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.about-info-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.about-info-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius);
  flex-shrink: 0;
  margin-top: 0.25rem;
}

.about-info-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-600);
  margin: 0 0 0.25rem 0;
}

.about-info-value {
  font-weight: 500;
  color: var(--gray-900);
  margin: 0;
  transition: color 0.2s;
}

a.about-info-value:hover {
  color: var(--primary);
}

/* ===== Skills ===== */
.skills-grid {
  display: grid;
  gap: 2rem;
  margin-bottom: 4rem;
}

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

@media (min-width: 1024px) {
  .skills-grid { grid-template-columns: repeat(4, 1fr); }
}

.skill-card {
  background: var(--gray-50);
  border: 1px solid var(--gray-100);
  border-radius: var(--radius);
  padding: 2rem;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.skill-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

.skill-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.skill-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem;
  background: #dbeafe;
  color: var(--primary);
  border-radius: var(--radius);
}

.skill-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--gray-900);
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-tags span {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-700);
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: 9999px;
  transition: border-color 0.2s, color 0.2s;
}

.skill-tags span:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.certifications {
  background: var(--primary-light);
  border: 1px solid #bfdbfe;
  border-radius: var(--radius);
  padding: 2rem;
}

.cert-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 1.5rem;
}

.cert-grid {
  display: grid;
  gap: 1.5rem;
}

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

.cert-item {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

.cert-dot {
  width: 0.5rem;
  height: 0.5rem;
  background: var(--primary);
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 0.5rem;
}

.cert-name {
  font-weight: 500;
  color: var(--gray-900);
  margin: 0 0 0.25rem 0;
}

.cert-org {
  font-size: 0.875rem;
  color: var(--gray-600);
  margin: 0;
}

/* ===== Projects ===== */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 3rem;
}

.filter-btn {
  padding: 0.5rem 1.5rem;
  font-weight: 500;
  border-radius: 9999px;
  transition: all 0.3s;
  border: 1px solid var(--gray-200);
  background: var(--white);
  color: var(--gray-700);
}

.filter-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.filter-btn.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
}

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

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

.project-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.project-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.project-card-header {
  padding: 2rem 2rem 1.5rem;
  border-bottom: 1px solid var(--gray-100);
}

.project-card-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 0.5rem;
}

.project-year {
  font-size: 0.875rem;
  color: var(--gray-500);
  margin: 0;
}

.project-card-body {
  padding: 2rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-card-body > p {
  color: var(--gray-600);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex: 1;
}

.project-techs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.project-techs span {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--primary);
  background: var(--primary-light);
  border: 1px solid #bfdbfe;
  border-radius: 9999px;
}

.project-card.hidden {
  display: none;
}

/* ===== Experience / Timeline ===== */
.timeline {
  max-width: 48rem;
  margin: 0 auto;
}

.timeline-item {
  position: relative;
  margin-bottom: 2rem;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-connector {
  position: absolute;
  left: 2rem;
  top: 5rem;
  width: 4px;
  height: 3rem;
  background: linear-gradient(to bottom, var(--primary), #93c5fd);
}

.timeline-item-last .timeline-connector {
  display: none;
}

.timeline-item {
  display: flex;
  gap: 1.5rem;
}

.timeline-icon {
  flex-shrink: 0;
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
  border: 4px solid var(--primary);
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.timeline-icon-current {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.timeline-content {
  flex: 1;
  padding-top: 0.5rem;
}

.timeline-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.timeline-header h3 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 0.25rem;
}

.timeline-company {
  color: var(--primary);
  font-weight: 500;
  margin: 0;
}

.timeline-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 700;
  background: var(--primary);
  color: var(--white);
  border-radius: 9999px;
  white-space: nowrap;
}

.timeline-period {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-500);
  margin: 0 0 0.75rem 0;
}

.timeline-desc {
  color: var(--gray-600);
  line-height: 1.6;
  margin: 0;
}

/* ===== Contact ===== */
.section-contact {
  background: linear-gradient(to bottom, var(--gray-50), var(--white));
}

.contact-intro {
  max-width: 48rem;
  margin: 0 auto 4rem;
  text-align: center;
}

.contact-intro .section-title {
  margin-bottom: 1.5rem;
}

.contact-intro p {
  font-size: 1.125rem;
  color: var(--gray-600);
  line-height: 1.6;
  margin: 0;
}

.contact-grid {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 4rem;
}

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

.contact-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 2rem;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  transition: border-color 0.3s, box-shadow 0.3s;
}

.contact-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

.contact-card:hover .contact-card-text p {
  color: var(--primary);
}

.contact-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  border-radius: var(--radius);
  flex-shrink: 0;
}

.contact-icon-mail { background: #fef2f2; color: #dc2626; }
.contact-icon-phone { background: #f0fdf4; color: #16a34a; }
.contact-icon-linkedin { background: #eff6ff; color: #2563eb; }
.contact-icon-github { background: var(--gray-100); color: var(--gray-800); }

.contact-card-text {
  flex: 1;
  text-align: left;
}

.contact-card-text h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-900);
  margin: 0 0 0.25rem 0;
}

.contact-card-text p {
  color: var(--gray-600);
  margin: 0;
  word-break: break-all;
  transition: color 0.2s;
}

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

.contact-cta .btn {
  box-shadow: var(--shadow-lg);
}

.contact-cta .btn:hover {
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}

/* ===== Footer ===== */
.footer {
  background: var(--gray-900);
  color: #d1d5db;
  padding: 3rem 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  text-align: center;
}

.footer-copy {
  font-size: 0.875rem;
  margin: 0;
}

.footer-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.footer-nav a {
  font-size: 0.875rem;
  color: inherit;
  transition: color 0.2s;
}

.footer-nav a:hover {
  color: var(--white);
}

.footer-credit {
  font-size: 0.875rem;
  color: var(--gray-500);
  margin: 0;
}

@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    text-align: left;
  }
}

/* ===== Animações de scroll ===== */
[data-animate] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

[data-animate].animate-in {
  opacity: 1;
  transform: translateY(0);
}

/* Smooth scroll */
html {
  scroll-behavior: smooth;
}