/* Variáveis e Configurações Globais */
@property --gradient-angle {
  syntax: "<angle>";
  initial-value: 0deg;
  inherits: false;
}

/* Estilos Globais */
body {
  font-family: "Inter", "JetBrains Mono", monospace, sans-serif;
  margin: 0;
  padding: 0;
  background-color: var(--bg);
  color: var(--text);
  transition: background-color 0.5s ease, color 0.5s ease;
  line-height: 1.8;
  letter-spacing: 0.2px;
  overflow-x: hidden;
  cursor: auto !important;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}

:root {
  /* Tema Claro (Padrão) */
  --bg: #16161a;
  --text: #fffffe;
  --primary: #7f5af0;
  --secondary: #2cb67d;
  --accent: #8e44ad;
  --card-bg: #242629;
  --border-color: rgba(255, 255, 255, 0.18);
  --header-bg: rgba(255, 255, 255, 0.08);
  --header-text-color: #fffffe;
  --nav-link-hover-bg: rgba(255, 255, 255, 0.05);
  --footer-bg: #242629;
  --footer-text-color: #94a1b2;
  --button-text-color: #ffffff;
  --shadow-color: rgba(255, 255, 255, 0.18);
  --hero-gradient-start: rgba(127, 90, 240, 0.8);
  --hero-gradient-end: rgba(44, 182, 125, 0.8);
  --primary-glow: rgba(127, 90, 240, 0.2);
  --secondary-glow: rgba(44, 182, 125, 0.2);
  --card-border-color1: #7f5af0;
  --card-border-color2: #2cb67d;
  --bg-light: #242629;
  --glass: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.18);
  --neon: #7f5af0;
  --gradient: linear-gradient(120deg, #7f5af0 0%, #2cb67d 100%);
}

body.dark-theme {
  --bg: #16161a;
  --text: #fffffe;
  --primary: #2cb67d;
  --secondary: #7f5af0;
  --accent: #b39ddb;
  --card-bg: #242629;
  --border-color: rgba(255, 255, 255, 0.18);
  --header-bg: rgba(255, 255, 255, 0.08);
  --header-text-color: #fffffe;
  --nav-link-hover-bg: rgba(255, 255, 255, 0.05);
  --footer-bg: #242629;
  --footer-text-color: #94a1b2;
  --button-text-color: #ffffff;
  --shadow-color: rgba(255, 255, 255, 0.18);
  --hero-gradient-start: rgba(44, 182, 125, 0.8);
  --hero-gradient-end: rgba(127, 90, 240, 0.8);
  --primary-glow: rgba(44, 182, 125, 0.15);
  --secondary-glow: rgba(127, 90, 240, 0.15);
  --card-border-color1: #2cb67d;
  --card-border-color2: #7f5af0;
  --bg-light: #242629;
  --glass: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.18);
  --neon: #2cb67d;
  --gradient: linear-gradient(120deg, #2cb67d 0%, #7f5af0 100%);
}

body.light {
  --primary: #2563eb;
  --secondary: #60a5fa;
  --bg: #fff;
  --bg-light: #f1f5f9;
  --text: #1e293b;
  --text-secondary: #64748b;
  --glass: rgba(255, 255, 255, 0.92);
  --glass-border: #e0e7ef;
  --card-bg: #fff;
  --neon: #2563eb;
  --gradient: linear-gradient(120deg, #2563eb 0%, #60a5fa 100%);
  --header-text-color: #1e293b; /* azul escuro para contraste no header */
  --nav-link-hover-bg: rgba(
    37,
    99,
    235,
    0.08
  ); /* azul suave ao passar o mouse */
}

h1,
h2,
h3 {
  font-family: "Inter", "JetBrains Mono", monospace, sans-serif;
  color: var(--primary);
  font-weight: 700;
}

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

a:hover {
  color: var(--primary);
  text-decoration: none;
}

/* Cabeçalho */
header {
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 0.5rem 0;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 10;
  transition: background 0.4s;
  border-bottom: 1px solid var(--border-color);
  min-height: 72px;
  height: 72px;
  line-height: 72px;
}

header.scrolled {
  padding: 0.8rem 0;
  background: var(--header-bg);
  box-shadow: 0 4px 30px var(--shadow-color);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
}

.logo {
  font-size: 2rem;
  font-weight: 900;
  color: var(--primary);
  letter-spacing: 2px;
  text-shadow: 0 2px 16px rgba(127, 90, 240, 0.25), 0 1px 0 #fff;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  transition: all 0.3s cubic-bezier(0.21, 1.02, 0.73, 1);
}

.logo:hover {
  transform: scale(1.08) rotate(-2deg);
  filter: brightness(1.2);
}

body.light .logo {
  color: #2563eb;
  background: none;
  font-weight: 900;
  text-shadow: 0 2px 12px #60a5fa55, 0 1px 0 #fff, 0 0 2px #2563eb;
  filter: brightness(1.15);
  -webkit-background-clip: initial;
  background-clip: initial;
  transition: filter 0.3s, text-shadow 0.3s;
}

body.dark-theme .logo {
  color: var(--primary);
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  font-weight: 900;
  text-shadow: 0 2px 12px var(--secondary-glow), 0 1px 0 #fff,
    0 0 2px var(--primary);
  filter: brightness(1.12);
  -webkit-background-clip: text;
  background-clip: text;
  transition: filter 0.3s, text-shadow 0.3s;
}

body.light .logo:hover,
body.light .logo:focus {
  background: none;
  color: #1d4ed8;
  filter: brightness(1.22);
  text-shadow: 0 4px 18px #60a5fa99, 0 1px 0 #fff, 0 0 2px #2563eb;
  outline: none;
}

body.dark-theme .logo:hover,
body.dark-theme .logo:focus {
  color: var(--secondary);
  background: linear-gradient(90deg, var(--secondary), var(--primary));
  filter: brightness(1.22);
  text-shadow: 0 4px 18px var(--primary-glow), 0 1px 0 #fff,
    0 0 2px var(--secondary);
  outline: none;
}

.logo[aria-label] {
  cursor: pointer;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
  margin: 0;
  padding: 0;
}

.nav-links a {
  position: relative;
  padding: 0.6rem 1rem;
  transition: color 0.3s ease;
  overflow: hidden;
  font-size: 1rem;
  font-weight: 500;
  color: var(--header-text-color);
  padding: 0.6rem 1.2rem;
  border-radius: 4px;
  transition: all 0.3s ease;
  letter-spacing: 0.5px;
}

.nav-links a::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--primary);
  transform: translateX(-100%) skewX(-45deg);
  transition: transform 0.4s ease;
  z-index: -1;
  opacity: 0.1;
}

.nav-links a:hover::before {
  transform: translateX(0) skewX(-45deg);
}

.nav-links a:hover {
  color: var(--primary);
  background: var(--nav-link-hover-bg);
  transform: translateY(-1px);
}

#theme-toggle {
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  max-width: 48px;
  max-height: 48px;
  border-radius: 50%;
  aspect-ratio: 1/1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--header-bg);
  border: 2.5px solid var(--primary);
  box-shadow: 0 2px 10px 0 var(--primary-glow);
  cursor: pointer;
  transition: background 0.2s, border 0.2s, box-shadow 0.2s, transform 0.18s;
  outline: none;
  padding: 0;
  margin: 0 0 0 1rem;
  position: relative;
  z-index: 11;
}

#theme-toggle:hover,
#theme-toggle:focus {
  background: var(--glass);
  border-color: var(--primary);
  box-shadow: 0 4px 18px 0 var(--primary-glow);
  transform: scale(1.08);
}

/* Seção Hero */
.hero {
  position: relative;
  padding-top: 72px;
  min-height: calc(80vh - 72px);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  overflow: hidden;
  padding-bottom: 4rem;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    var(--gradient-angle),
    var(--hero-gradient-start),
    var(--hero-gradient-end)
  );
  opacity: 0.95;
  z-index: 1;
  animation: gradient-rotation 15s linear infinite;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 3rem 1rem 2rem 1rem;
  max-width: 800px;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  margin-bottom: 1.2rem;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent 0 0 0 1;
  letter-spacing: -1px;
  line-height: 1.2;
}

.hero p {
  font-size: 1.3rem;
  margin-bottom: 2.2rem;
  max-width: 750px;
  font-weight: 300;
  color: #23272f;
  line-height: 1.6;
}

.cta-button {
  background: var(--gradient);
  color: var(--button-text-color);
  padding: 1rem 2.5rem;
  font-size: 1.1rem;
  border: none;
  border-radius: 30px;
  cursor: pointer;
  transition: background 0.3s, transform 0.2s;
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 1px;
  box-shadow: 0 4px 24px 0 var(--shadow-color);
  animation: zoomIn 0.8s ease-out 0.6s backwards;
}

.cta-button:hover {
  background: var(--gradient);
  filter: brightness(1.1);
  transform: translateY(-2px) scale(1.04);
}

.cta-button.enviado {
  background: var(--secondary);
  color: #fff;
  filter: brightness(1.2);
  box-shadow: 0 0 12px #60a5fa99;
}

/* Seções Genéricas */
main section:not(.hero) {
  margin-top: 0;
}

main section {
  padding: 5rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

main section.visible {
  opacity: 1;
  transform: translateY(0);
}

main section h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin-bottom: 3.5rem;
  position: relative;
  display: inline-block;
}

main section h2::after {
  content: "";
  display: block;
  width: 70px;
  height: 5px;
  background-color: var(--secondary);
  margin: 0.6rem auto 0;
  border-radius: 3px;
  transform: scaleX(0);
  transition: transform 0.5s ease-out 0.3s;
}

main section.visible h2::after {
  transform: scaleX(1);
}

/* Seção Sobre Mim */
.about-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.profile-pic {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--primary);
  box-shadow: 0 4px 32px 0 var(--glass-border);
  margin-bottom: 1rem;
}

.about-content p {
  font-size: clamp(1rem, 2vw, 1.1rem);
  max-width: 650px;
}

/* Cards de Projetos */
.project-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
  margin-top: 2.5rem;
}

.card {
  position: relative;
  background: var(--glass);
  border: 1.5px solid var(--glass-border);
  border-radius: 18px;
  box-shadow: 0 8px 32px 0 var(--glass-border);
  padding: 2rem 1.2rem 1.5rem 1.2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform 0.35s cubic-bezier(0.21, 1.02, 0.73, 1),
    box-shadow 0.35s;
  perspective: 800px;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    var(--gradient-angle),
    var(--card-border-color1),
    var(--card-border-color2)
  );
  z-index: -2;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.card::after {
  content: "";
  position: absolute;
  inset: 1px;
  background: var(--card-bg);
  border-radius: 7px;
  z-index: -1;
}

.card:hover::before {
  opacity: 1;
}

.card:hover {
  transform: rotateY(8deg) scale(1.03) translateY(-6px);
  box-shadow: 0 12px 40px 0 var(--glass-border);
}

.card img {
  width: 100%;
  max-width: 320px;
  height: 180px;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 1.2rem;
  box-shadow: 0 2px 16px 0 var(--glass-border);
  transition: transform 0.4s, opacity 0.7s cubic-bezier(0.21, 1.02, 0.73, 1);
  opacity: 0;
  border: none;
}

.card.visible img {
  opacity: 1;
}

.card:hover img {
  transform: scale(1.04) rotate(-2deg);
}

.card h3 {
  margin: 0.5rem 0 0.7rem 0;
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
}

.card p {
  color: var(--footer-text-color);
  font-size: 1rem;
  margin-bottom: 1.2rem;
}

.cta-button-small {
  background: var(--gradient);
  color: var(--button-text-color);
  border: none;
  border-radius: 20px;
  padding: 0.6rem 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  cursor: pointer;
  box-shadow: 0 2px 12px 0 var(--glass-border);
  transition: background 0.3s, transform 0.2s;
  text-transform: uppercase;
  margin-top: auto;
}

.cta-button-small:hover {
  filter: brightness(1.1);
  transform: translateY(-2px) scale(1.04);
}

.cta-button-small:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Seção Habilidades */
.skills-bars {
  margin-top: 2.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem;
  justify-content: center;
}

.skill-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2.2rem;
  font-family: "JetBrains Mono", monospace;
  font-size: 1.08rem;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
  color: #fff;
  box-shadow: 0 2px 16px 0 var(--primary-glow);
  padding: 0.8rem 0.5rem;
  letter-spacing: 0.5px;
  cursor: pointer;
  margin: 0.3rem 0.5rem 0.3rem 0;
  transition: background 0.25s, box-shadow 0.25s, transform 0.15s;
  position: relative;
  overflow: hidden;
  outline: none;
  display: inline-block;
}

.skill-btn:hover,
.skill-btn:focus {
  background: linear-gradient(90deg, var(--secondary) 0%, var(--primary) 100%);
  box-shadow: 0 4px 24px 0 var(--secondary-glow);
  transform: translateY(-2px) scale(1.03);
}

.skill-btn:active {
  transform: scale(0.98);
}

.skill-btn::after {
  content: "";
  position: absolute;
  left: -60%;
  top: 0;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    120deg,
    rgba(255, 255, 255, 0.18) 0%,
    rgba(255, 255, 255, 0.01) 100%
  );
  transform: skewX(-20deg);
  transition: left 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

.skill-btn:hover::after {
  left: 110%;
}

button,
.cta-button,
.cta-button-small,
.skill-btn {
  min-width: 120px;
  min-height: 44px;
  font-size: 1.08rem;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
  color: #fff;
  box-shadow: 0 2px 16px 0 var(--primary-glow);
  padding: 0.8rem 0.5rem;
  letter-spacing: 0.5px;
  cursor: pointer;
  margin: 0.3rem 0.5rem 0.3rem 0;
  transition: background 0.25s, box-shadow 0.25s, transform 0.15s;
  position: relative;
  overflow: hidden;
  outline: none;
  display: inline-block;
}

button:hover,
.cta-button:hover,
.cta-button-small:hover,
.skill-btn:hover,
button:focus,
.cta-button:focus,
.cta-button-small:focus,
.skill-btn:focus {
  background: linear-gradient(90deg, var(--secondary) 0%, var(--primary) 100%);
  box-shadow: 0 4px 24px 0 var(--secondary-glow);
  transform: translateY(-2px) scale(1.03);
}

button:active,
.cta-button:active,
.cta-button-small:active,
.skill-btn:active {
  transform: scale(0.98);
}

button::after,
.cta-button::after,
.cta-button-small::after,
.skill-btn::after {
  content: "";
  position: absolute;
  left: -60%;
  top: 0;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    120deg,
    rgba(255, 255, 255, 0.18) 0%,
    rgba(255, 255, 255, 0.01) 100%
  );
  transform: skewX(-20deg);
  transition: left 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

button:hover::after,
.cta-button:hover::after,
.cta-button-small:hover::after,
.skill-btn:hover::after {
  left: 110%;
}

@media (max-width: 600px) {
  .skills-bars {
    gap: 0.6rem;
  }
  .skill-btn {
    min-width: 90px;
    font-size: 0.98rem;
    padding: 0.7rem 0.3rem;
  }

  button,
  .cta-button,
  .cta-button-small,
  .skill-btn {
    min-width: 90px;
    font-size: 0.98rem;
    padding: 0.7rem 0.3rem;
  }

  .contact form {
    max-width: 98vw;
    width: 100%;
    padding: 1.2rem 0.5rem 1rem 0.5rem;
    border-radius: 14px;
    min-width: 0;
  }
}

/* === FORMULÁRIO DE CONTATO: AJUSTES DE CORES E LABELS === */

/* Remove vermelho padrão e usa cor de destaque do tema para erro */
input:invalid,
textarea:invalid {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 40%, transparent);
}
.contact-fields input:invalid:focus,
.contact-fields textarea:invalid:focus {
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 40%, transparent);
}

/* Ajuste para labels flutuantes: estrutura label+input não funciona, usar placeholder animado */
.contact-fields label {
  position: static;
  pointer-events: auto;
  left: unset;
  top: unset;
  background: none;
  color: var(--primary);
  opacity: 1;
  font-size: 1.05rem;
  transform: none;
  transition: color 0.3s;
  margin-bottom: 0.2rem;
  margin-top: 0.5rem;
  z-index: 2;
}
.contact-fields input,
.contact-fields textarea {
  /* Remove dependência de label flutuante */
  margin-top: 0;
}

/* Placeholder animado: cor e opacidade */
.contact-fields input::placeholder,
.contact-fields textarea::placeholder {
  color: color-mix(in srgb, var(--primary) 60%, var(--text) 40%);
  opacity: 0.7;
  font-size: 1.01rem;
  transition: color 0.3s;
}
.contact-fields input:focus::placeholder,
.contact-fields textarea:focus::placeholder {
  color: var(--secondary);
  opacity: 0.5;
}

/* Ajuste para contraste e visual no tema claro/escuro */
body.light .contact-fields input,
body.light .contact-fields textarea {
  background: rgba(37, 99, 235, 0.07);
  color: var(--text);
  border-color: var(--primary);
}
body.light .contact-fields input:focus,
body.light .contact-fields textarea:focus {
  background: rgba(96, 165, 250, 0.13);
  border-color: var(--secondary);
}
body.light input:invalid,
body.light textarea:invalid {
  border-color: var(--accent);
}

body.dark-theme .contact-fields input,
body.dark-theme .contact-fields textarea {
  background: rgba(44, 182, 125, 0.07);
  color: var(--text);
  border-color: var(--primary);
}
body.dark-theme .contact-fields input:focus,
body.dark-theme .contact-fields textarea:focus {
  background: rgba(127, 90, 240, 0.13);
  border-color: var(--secondary);
}
body.dark-theme input:invalid,
body.dark-theme textarea:invalid {
  border-color: var(--accent);
}

/* FORMULÁRIO DE CONTATO — ELEGANTE E MODERNO */
.contact form {
  background: rgba(40, 48, 72, 0.22);
  backdrop-filter: blur(18px) saturate(1.2);
  box-shadow: 0 8px 40px 0 var(--primary-glow), 0 2px 16px 0 var(--glass-border);
  border-radius: 28px;
  border: none;
  max-width: 440px;
  margin-left: auto;
  margin-right: auto;
  padding: 2.2rem 2rem 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  position: relative;
}

.contact-fields {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: none;
  border-radius: 18px;
  padding: 0 0.7rem;
}

.contact-fields label {
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 0.2rem;
  margin-top: 0.5rem;
  letter-spacing: 0.2px;
  transition: color 0.3s;
  position: relative;
  z-index: 2;
}

.contact-fields input,
.contact-fields textarea {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  margin-left: 0;
  margin-right: 0;
  padding: 0.8rem 0.9rem 0.6rem 0.9rem;
  font-size: 1rem;
  border-radius: 10px;
  margin-bottom: 0.15rem;
  border: 2px solid transparent;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  font-family: inherit;
  outline: none;
  box-shadow: 0 2px 12px 0 var(--primary-glow);
  transition: border 0.3s, box-shadow 0.3s, background 0.3s;
  resize: none;
  margin-bottom: 0.2rem;
  margin-left: auto;
  margin-right: auto;
}

.contact-fields textarea {
  min-height: 80px;
  max-height: 180px;
  resize: vertical;
}

.contact-fields input:focus,
.contact-fields textarea:focus {
  border: 2px solid var(--primary);
  background: rgba(127, 90, 240, 0.1);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.contact-fields input:invalid:focus,
.contact-fields textarea:invalid:focus {
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 40%, transparent);
}

.contact-fields label + input,
.contact-fields label + textarea {
  margin-top: 1.7rem;
}

/* Botão enviar — destaque e animação */
.contact-fields .cta-button[type="submit"] {
  margin-top: 0.7rem;
  background: linear-gradient(90deg, var(--primary) 0%, var(--secondary) 100%);
  color: #fff;
  font-weight: 700;
  font-size: 1.13rem;
  border: none;
  border-radius: 12px;
  box-shadow: 0 2px 16px 0 var(--primary-glow);
  padding: 1rem 0;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: background 0.25s, box-shadow 0.25s, transform 0.15s;
  position: relative;
  overflow: hidden;
  min-width: 200px;
  min-height: 56px;
  font-size: 1.22rem;
  padding: 1.2rem 0;
  border-radius: 16px;
}
.contact-fields .cta-button[type="submit"]:hover,
.contact-fields .cta-button[type="submit"]:focus {
  background: linear-gradient(90deg, var(--secondary) 0%, var(--primary) 100%);
  box-shadow: 0 4px 24px 0 var(--secondary-glow);
  transform: translateY(-2px) scale(1.03);
}
.contact-fields .cta-button[type="submit"]:active {
  transform: scale(0.98);
}

/* Microanimação de brilho no botão */
.contact-fields .cta-button[type="submit"]::after {
  content: "";
  position: absolute;
  left: -60%;
  top: 0;
  width: 60%;
  height: 100%;
  background: linear-gradient(
    120deg,
    rgba(255, 255, 255, 0.18) 0%,
    rgba(255, 255, 255, 0.01) 100%
  );
  transform: skewX(-20deg);
  transition: left 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}
.contact-fields .cta-button[type="submit"]:hover::after {
  left: 110%;
}

/* Feedback de erro */
input:invalid,
textarea:invalid {
  border-color: var(--accent);
}

/* Responsividade extra */
@media (max-width: 600px) {
  .contact form {
    padding: 1.2rem 0.5rem 1rem 0.5rem;
  }
  .contact-fields {
    padding: 0 0.1rem;
  }
  .contact-fields input,
  .contact-fields textarea {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
    font-size: 0.95rem;
    padding: 0.7rem 0.5rem 0.5rem 0.5rem;
    margin-left: 0;
    margin-right: 0;
  }
  .contact-fields label {
    font-size: 0.98rem;
    margin-left: 0;
  }
  .contact-fields .cta-button[type="submit"] {
    width: 100%;
    min-width: 0;
    font-size: 1rem;
    padding: 1rem 0;
    margin-left: 0;
    margin-right: 0;
  }
}

/* Rodapé */
footer {
  background-color: var(--footer-bg);
  color: var(--footer-text-color);
  text-align: center;
  padding: 2.5rem 1rem 1.2rem 1rem;
  margin-top: 2rem;
  font-size: clamp(0.8rem, 1.5vw, 0.9rem);
  border-top: 1.5px solid var(--glass-border);
  position: relative;
}

footer p {
  margin: 0;
}

footer .neon {
  color: var(--neon);
  text-shadow: 0 0 8px var(--neon), 0 0 16px var(--neon);
  font-size: 1.2em;
}

/* Animações Keyframes */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes zoomIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes gradient-rotation {
  0% {
    --gradient-angle: 0deg;
  }
  100% {
    --gradient-angle: 360deg;
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

@keyframes titleAnimation {
  0% {
    opacity: 0;
    transform: translateY(-50px) scale(0.8);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes borderLight {
  0% {
    border-image-source: linear-gradient(
      120deg,
      var(--primary),
      var(--secondary),
      var(--primary)
    );
  }
  50% {
    border-image-source: linear-gradient(
      300deg,
      var(--secondary),
      var(--primary),
      var(--secondary)
    );
  }
  100% {
    border-image-source: linear-gradient(
      480deg,
      var(--primary),
      var(--secondary),
      var(--primary)
    );
  }
}

/* Responsividade */
@media (max-width: 900px) {
  .about-content {
    flex-direction: column;
    text-align: center;
  }
  .profile-pic {
    margin-bottom: 2.5rem;
  }
  nav {
    padding: 1.2rem 1rem;
  }
  .nav-links {
    gap: 1rem;
  }
  .nav-links a {
    padding: 0.5rem 0.8rem;
  }
}

@media (max-width: 600px) {
  .nav-links {
    display: none;
  }
  nav {
    padding: 0 1rem;
    justify-content: space-between;
  }
  .logo {
    font-size: 1.6rem;
  }
  .theme-switcher button {
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
  }

  .hero {
    padding-top: 72px;
    min-height: calc(70vh - 72px);
    padding: 0 1rem 4rem 1rem;
  }

  main section:not(.hero) {
    margin-top: 0;
  }

  main section {
    padding: 4rem 1.5rem;
  }

  main section h2 {
    margin-bottom: 2.5rem;
  }

  .project-cards {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .card {
    padding: 1.2rem 0.5rem 1rem 0.5rem;
  }

  .card img {
    height: 200px;
  }

  .contact form {
    padding: 1.5rem;
  }

  .hero h1 {
    font-size: clamp(2rem, 4vw, 2.8rem);
  }

  .hero p {
    font-size: clamp(1rem, 2vw, 1.1rem);
  }

  .card::before {
    animation: none;
  }

  .skill-item::after {
    display: none;
  }

  header {
    min-height: 72px;
    height: 72px;
    line-height: 72px;
  }

  .contact form {
    max-width: 98vw;
    border-radius: 18px;
  }
  .contact form::after {
    border-radius: 18px;
  }
}

@media (max-width: 480px) {
  body {
    line-height: 1.6;
  }
  .hero {
    padding: 4rem 1rem;
    min-height: 60vh;
  }
  .cta-button {
    padding: 0.9rem 1.8rem;
  }
  main section {
    padding: 3rem 1rem;
  }
  main section h2::after {
    width: 50px;
    height: 4px;
  }
  .profile-pic {
    width: 180px;
    height: 180px;
  }
  .about-content p {
    font-size: 0.95rem;
  }
  .skill-item {
    padding: 0.8rem 1.2rem;
    min-width: 100px;
  }
  .contact form {
    padding: 1.5rem;
    gap: 1.5rem;
  }
  .contact label {
    margin-bottom: -0.5rem;
  }
  .contact input,
  .contact textarea {
    padding: 1rem;
  }
}

/* Responsividade extra para o formulário de contato */
@media (max-width: 480px) {
  .contact form {
    max-width: 98vw;
    width: 100%;
    min-width: 0;
    padding: 1rem 0.2rem 1rem 0.2rem;
    border-radius: 14px;
    box-sizing: border-box;
  }
  .contact-fields {
    padding: 0 0.1rem;
  }
  .contact-fields input,
  .contact-fields textarea {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
    font-size: 0.95rem;
    padding: 0.7rem 0.5rem 0.5rem 0.5rem;
    margin-left: 0;
    margin-right: 0;
  }
  .contact-fields label {
    font-size: 0.98rem;
    margin-left: 0;
  }
  .contact-fields .cta-button[type="submit"] {
    width: 100%;
    min-width: 0;
    font-size: 1rem;
    padding: 1rem 0;
    margin-left: 0;
    margin-right: 0;
  }
}

/* Efeito de Loading */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 2px solid var(--border-color);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  100% {
    transform: rotate(360deg);
  }
}

/* Remover cursor customizado e mouse trail */
.cursor-custom,
.cursor-trail {
  display: none !important;
}

main {
  margin-top: 0 !important;
}

input,
textarea,
button,
select {
  cursor: auto !important;
}

.nav-links a:focus,
.cta-button:focus,
.cta-button-small:focus,
.skill-btn:focus,
.contact-collapsed:focus,
input:focus,
textarea:focus,
button:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px var(--primary-glow);
  z-index: 2;
}

/* Contraste melhorado para botões em ambos os temas */
.cta-button,
.cta-button-small,
.skill-btn {
  color: var(--button-text-color);
  background: var(--gradient);
  border: none;
  border-radius: 6px;
  font-weight: 700;
  transition: background 0.3s, color 0.3s, box-shadow 0.3s;
}

body.light .cta-button,
body.light .cta-button-small,
body.light .skill-btn {
  color: #fff;
  background: var(--gradient);
}

body.dark-theme .cta-button,
body.dark-theme .cta-button-small,
body.dark-theme .skill-btn {
  color: #fff;
  background: var(--gradient);
}

/* will-change para elementos animados */
.hero,
.card,
.profile-pic {
  will-change: transform, opacity;
}

.about {
  margin-top: 2.5rem;
}

#back-to-top {
  position: fixed;
  right: 2vw;
  bottom: 3vh;
  z-index: 100;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 44px;
  height: 44px;
  min-width: 44px;
  min-height: 44px;
  max-width: 48px;
  max-height: 48px;
  font-size: 1.5rem;
  box-shadow: 0 4px 16px #0002;
  cursor: pointer;
  opacity: 0.85;
  transition: background 0.2s, opacity 0.2s, transform 0.2s;
  outline: none;
  display: none;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
#back-to-top:hover,
#back-to-top:focus {
  background: var(--secondary);
  opacity: 1;
  transform: scale(1.08);
}