:root {
  font-size: 62.5%;
  --font-link: 'Roboto';
  --font-baner: 'Roboto';

  --color-bg: #ffffff;
  --color-bg-secondary: #f8f8f8;
  --color-bg-card: #f4f4f4;
  --color-bg-card-hover: #ffffff;
  --color-text-primary: #1C2E35;
  --color-text-secondary: #666;
  --color-text-inverse: #1C2E35;
  --color-highlight: #D6FF76;
  --color-border: #ccc;
  --color-shadow: rgba(0, 0, 0, 0.1);
  --color-shadow-hover: rgba(0, 0, 0, 0.15);
  --color-bg-glass: rgba(255, 255, 255, 0.8);
}

body.dark-mode {
  --color-bg: #1C2E35;
  --color-bg-secondary: #2a3b42;
  --color-bg-card: #344952;
  --color-bg-card-hover: #405a66;
  --color-text-primary: #f1f1f1;
  --color-text-secondary: #b0b0b0;
  --color-text-inverse: #1C2E35;
  --color-highlight: #D6FF76;
  --color-border: #555;
  --color-shadow: rgba(0, 0, 0, 0.3);
  --color-shadow-hover: rgba(0, 0, 0, 0.4);
  --color-bg-glass: rgba(28, 46, 53, 0.8);
}

* {
  padding: 0;
  margin: 0;
  text-decoration: none;
  list-style: none;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: 'Montserrat', sans-serif;
  overflow-x: hidden;
  background-color: var(--color-bg);
  color: var(--color-text-secondary);
  transition: background-color 0.3s ease, color 0.3s ease;
}

nav {
  background: transparent;
  height: 80px;
  width: 100%;
  position: fixed;
  top: 0;
  z-index: 1000;
  box-shadow: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  transition: background-color 0.4s ease, box-shadow 0.4s ease;
}

nav.scrolled {
  background: var(--color-bg-glass);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 2px 5px var(--color-shadow);
}

div.icone {
  height: 50px;
  width: 180px; 
  position: relative;
}

div.icone img {
  height: 100%;
  width: 100%;
  object-fit: contain;
  object-position: left center;
  position: absolute;
  top: 0;
  left: 0;
  transition: opacity 0.3s ease;
}

.logo-light {
  opacity: 1;
}
.logo-dark {
  opacity: 0;
}
body.dark-mode .logo-light {
  opacity: 0;
}
body.dark-mode .logo-dark {
  opacity: 1;
}


nav ul {
  display: flex;
  transition: all 0.5s ease;
}

nav ul li {
  margin: 0 10px;
}

nav ul li a {
  color: var(--color-text-primary);
  font-size: 17px;
  padding: 7px 13px;
  border-radius: 3px;
  text-transform: uppercase;
  font-family: Roboto;
  transition: all 0.3s ease;
  position: relative;
}

nav ul li a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--color-highlight);
  transition: width 0.3s ease;
}

a:hover {
  background: transparent;
  color: var(--color-highlight);
}

nav ul li a:hover::after {
  width: 100%;
}

a.active-link {
  color: var(--color-highlight);
}

a.active-link::after {
  width: 100%;
}

.checkbtn {
  font-size: 30px;
  color: var(--color-text-primary);
  cursor: pointer;
  display: none;
}

#check {
  display: none;
}

main {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  background-color: var(--color-bg);
  padding: 80px 20px 20px;
  min-height: 100vh;
}

.img-baner {
  flex: 1;
  min-width: 300px;
  padding: 20px;
}

.devboy {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  min-width: 300px;
  padding: 20px;
}

#container-banner {
  max-width: 600px;
  text-align: left;
}

h1, h2, h3, h4 {
  color: var(--color-text-primary);
  font-family: Roboto;
}

#container-banner h2 {
  font-size: 24px;
  font-weight: 500;
  line-height: normal;
  margin-bottom: 15px;
}

h1 {
  font-size: clamp(2.8rem, 5vw, 4.5rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 15px;
}

#img1 {
  width: 100%;
  max-width: 600px;
  height: auto;
  display: block;
}

button {
  width: 100%;
  max-width: 380px;
  height: 65px;
  border-radius: 8px;
  margin-top: 40px;
  font-family: Roboto;
  font-size: 24px;
  font-weight: 900;
  background: var(--color-highlight);
  color: var(--color-text-inverse);
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  display: block;
}

button:hover {
  transform: scale(1.02);
  box-shadow: 0 4px 8px var(--color-shadow);
}

#text_button {
  text-decoration: none;
  color: var(--color-text-inverse);
  display: block;
  width: 100%;
  height: 100%;
  line-height: 65px;
  text-align: center;
}

section {
  background-size: cover;
  height: auto;
  padding: 80px 20px;
}

#home_section {
  background-color: var(--color-bg-secondary);
  text-align: center;
}
.content-about {
  max-width: 800px;
  margin: 0 auto;
}
.content-about h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 20px;
}
.content-about p {
  color: var(--color-text-secondary);
  font-size: 1.6rem;
  line-height: 1.8;
  text-align: left;
  max-width: 65ch;
  margin-left: auto;
  margin-right: auto;
}

#services {
  background-color: var(--color-bg-secondary);
  text-align: center;
}
#services h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 40px;
}
.services-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
}
.service {
  background: var(--color-bg);
  padding: 40px;
  border-radius: 8px;
  box-shadow: 0 4px 8px var(--color-shadow);
  width: 30%;
  min-width: 280px;
  margin: 15px 0;
  transition: all 0.3s ease;
}
.service:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 20px var(--color-shadow-hover);
  background: var(--color-bg-card-hover);
}
.service i {
  font-size: 3rem;
  color: var(--color-text-primary);
  margin-bottom: 15px;
}
.service h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 15px;
}
.service p {
  color: var(--color-text-secondary);
  font-size: 1.6rem;
  line-height: 1.8;
  text-align: center;
}

#portfolio {
  background-color: var(--color-bg);
  text-align: center;
}
#portfolio h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 40px;
}
.projects {
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 20px;
}
.project {
  background: var(--color-bg-card);
  padding: 20px;
  border-radius: 8px;
  box-shadow: 0 4px 8px var(--color-shadow);
  text-align: left;
  width: 30%;
  min-width: 280px;
  transition: all 0.3s ease;
  cursor: pointer;
}
.project:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 20px var(--color-shadow-hover);
  background: var(--color-bg-card-hover);
}
.project img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 5px;
}
.project h3 {
  font-size: 20px;
  font-weight: 700;
  margin-top: 15px;
}
.project p {
  color: var(--color-text-secondary);
  font-size: 1.5rem;
  font-weight: 500;
  margin-top: 10px;
  line-height: 1.6;
}

#testemunhos {
  background-color: var(--color-bg);
  text-align: center;
}
#testemunhos h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 40px;
}
.testemunho-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
}
.testemunho-card {
  background: var(--color-bg-card);
  padding: 30px;
  border-radius: 8px;
  border-left: 5px solid var(--color-highlight);
  box-shadow: 0 4px 8px var(--color-shadow);
  width: 45%;
  min-width: 280px;
  text-align: left;
}
.testemunho-card p.depoimento {
  color: var(--color-text-secondary);
  font-size: 1.6rem;
  font-style: italic;
  line-height: 1.7;
  margin-bottom: 15px;
}
.testemunho-card h4 {
  font-size: 1.8rem;
  font-weight: 700;
}
.testemunho-card p.cargo {
  font-size: 1.4rem;
  color: var(--color-text-secondary);
  font-weight: 500;
}

#contact {
  background-color: var(--color-bg-secondary);
  text-align: center;
}
#contact h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 20px;
}
p.subtitle-contact {
  margin-bottom: 30px;
  font-size: 1.6rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 65ch;
  margin-left: auto;
  margin-right: auto;
}
form {
  max-width: 500px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}
input, textarea {
  padding: 12px;
  margin-bottom: 15px;
  border: 1px solid var(--color-border);
  border-radius: 5px;
  font-size: 1.6rem;
  font-family: 'Roboto', sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text-primary);
}
textarea {
  height: 150px;
  resize: vertical;
}
button[type="submit"] {
  padding: 15px 20px;
  background: var(--color-text-primary);
  color: var(--color-bg);
  border: none;
  border-radius: 8px;
  font-size: 1.8rem;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-top: 10px;
}
button[type="submit"]:hover {
  background: var(--color-highlight);
  color: var(--color-text-inverse);
  transform: scale(1.02);
}
button[type="submit"]:disabled {
  background-color: var(--color-text-secondary);
  cursor: not-allowed;
}

footer {
  text-align: center;
  padding: 20px;
  background-color: var(--color-text-primary);
  color: var(--color-bg);
}
footer p {
  font-size: 1.4rem;
  margin: 5px 0;
}
footer a {
  color: var(--color-highlight);
  text-decoration: none;
}
footer a:hover {
  text-decoration: underline;
}

#back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background-color: var(--color-text-primary);
  color: var(--color-highlight);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  text-decoration: none;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 999;
}
#back-to-top:hover {
  background-color: var(--color-highlight);
  color: var(--color-text-inverse);
  transform: scale(1.1);
}
#back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.reveal {
  opacity: 0;
  transform: translateY(50px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.theme-switch-wrapper {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text-primary);
  margin-right: 20px;
}
.theme-switch-wrapper .fa-sun { color: #f39c12; }
.theme-switch-wrapper .fa-moon { color: var(--color-text-primary); }
body.dark-mode .theme-switch-wrapper .fa-moon { color: #f1c40f; }

.theme-switch {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 24px;
}
.theme-switch input { 
  opacity: 0;
  width: 0;
  height: 0;
}
.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  transition: .4s;
}
.slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: .4s;
}
input:checked + .slider {
  background-color: var(--color-highlight);
}
input:checked + .slider:before {
  transform: translateX(26px);
}
.slider.round { border-radius: 34px; }
.slider.round:before { border-radius: 50%; }

#form-status {
  font-size: 1.6rem;
  margin-top: 15px;
  font-weight: 500;
}
#form-status.success {
  color: #2ecc71;
}
#form-status.error {
  color: #e74c3c;
}

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(5px);
  display: grid;
  place-items: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  z-index: 2000;
  padding: 20px;
}
.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}
.modal-content {
  position: relative;
  background: var(--color-bg);
  padding: 30px;
  border-radius: 10px;
  width: 100%;
  max-width: 700px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  transform: scale(0.9);
  transition: transform 0.3s ease;
}
.modal-overlay.open .modal-content {
  transform: scale(1);
}
/* Estilo melhorado para o botão de fechar (inspirado no exemplo) */
.modal-close {
  position: absolute;
  top: 15px; /* Posição do topo */
  right: 15px; /* Posição da direita */
  font-size: 28px; /* Tamanho do "x" */
  color: #ffffff; /* Cor branca para o "x" */
  background-color: #333333; /* Fundo escuro para o círculo */
  border: none;
  cursor: pointer;
  width: 45px; /* Largura do botão/círculo */
  height: 45px; /* Altura do botão/círculo */
  border-radius: 50%; /* Torna o botão circular */
  display: flex; /* Para centralizar o "x" */
  align-items: center; /* Centraliza verticalmente o "x" */
  justify-content: center; /* Centraliza horizontalmente o "x" */
  transition: all 0.2s ease;
  z-index: 1; /* Garante que fique acima de outros elementos dentro do modal-content */
}

.modal-close:hover {
  background-color: #555555; /* Um pouco mais claro no hover */
  transform: scale(1.1); /* Um leve aumento para feedback */
  color: #D6FF76; /* Opcional: muda a cor do 'x' no hover para a cor de destaque */
}

/* Opcional: Se desejar uma cor diferente para o 'x' no hover no dark mode */
body.dark-mode .modal-close:hover {
  color: #D6FF76; 
}
/* Fim do estilo melhorado */

#modal-img {
  width: 100%;
  height: auto;
  max-height: 400px;
  object-fit: cover;
  border-radius: 5px;
  margin-bottom: 20px;
}
#modal-title {
  font-size: 2.4rem;
  margin-bottom: 10px;
}
#modal-description {
  font-size: 1.6rem;
  line-height: 1.7;
  margin-bottom: 20px;
}
#modal-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 25px;
}
#modal-stack span {
  font-size: 1.3rem;
  background-color: var(--color-highlight);
  color: var(--color-text-inverse);
  padding: 5px 10px;
  border-radius: 15px;
  font-weight: 500;
}
.modal-links {
  display: flex;
  gap: 15px;
}
.modal-btn {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: 'Roboto';
  padding: 10px 20px;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.3s ease;
}
.modal-btn.live {
  background-color: var(--color-highlight);
  color: var(--color-text-inverse);
}
.modal-btn.repo {
  background: none;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}
.modal-btn:hover {
  transform: translateY(-3px);
}

@media (max-width: 900px) {
  .checkbtn {
    display: block;
  }
  .theme-switch-wrapper {
  }
  nav ul {
    position: fixed;
    width: 100%;
    height: calc(100vh - 80px);
    background: var(--color-bg-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    top: 80px;
    left: -100%;
    text-align: center;
    flex-direction: column;
    padding-top: 20px;
    justify-content: flex-start;
  }
  nav ul li {
    margin: 15px 0;
  }
  nav ul li a {
    font-size: 18px;
    padding: 10px 20px;
  }
  #check:checked ~ ul {
    left: 0;
  }
}

@media (max-width: 768px) {
  section {
    padding: 60px 20px;
  }
  div.icone {
    height: 45px;
    width: 160px;
  }
  main {
    padding-top: 100px;
    min-height: auto;
  }
  #container-banner, .img-baner {
    text-align: center;
  }
  button {
    margin: 40px auto 0;
    font-size: 20px;
    max-width: 320px;
  }
  .content-about p {
    text-align: center;
  }
  .project, .service, .testemunho-card {
    width: 80%;
    min-width: 280px;
  }
  .testemunho-card {
    width: 90%;
  }
}

@media (max-width: 480px) {
  div.icone {
    height: 40px;
    width: 150px;
  }
  .checkbtn {
    font-size: 25px;
  }
  .theme-switch-wrapper {
    margin-right: 10px;
    gap: 5px;
  }
  .theme-switch {
    width: 40px;
    height: 20px;
  }
  .slider:before {
    height: 14px;
    width: 14px;
    left: 3px;
    bottom: 3px;
  }
  input:checked + .slider:before {
    transform: translateX(20px);
  }

  #container-banner h2 {
    font-size: 18px;
  }
  h1 {
    font-size: 2.5rem;
  }
  button {
    height: 55px;
    font-size: 18px;
    max-width: 280px;
  }
  #text_button {
    line-height: 55px;
  }
  #img1 {
    max-width: 280px;
    margin-top: 20px;
  }
  .img-baner {
    flex-direction: column;
  }
  .project, .service, .testemunho-card {
    width: 100%;
    min-width: unset;
    margin-bottom: 20px;
  }
  #portfolio h2, #services h2, #contact h2, #testemunhos h2 {
    font-size: 24px;
  }
  button[type="submit"] {
    font-size: 1.6rem;
  }
}