:root {
  --bg-color: #0F0F14;
  --card-bg: rgba(23, 23, 24, 0.8);
  --border-color: rgba(30, 215, 96, 0.4);
  --text-primary: #EDEDF2;
  --text-secondary: #A7A7B4;
  --accent-color: #1DB954;
  --accent-dark: #1AA34A;
  --accent-light: #1ED760;
  --title: #c9c9c9;
  --tag-online-bg: rgba(30, 215, 96, 0.2);
  --tag-online-text: #1DB954;
  --focus-outline: var(--accent-color);
  --transition-duration: 0.3s;
  --particle-color: var(--accent-color);
  --glass-blur: 12px;
  --card-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
  --hero-shadow: 0 20px 60px 0 rgba(29, 185, 84, 0.15);
  --border-radius-sm: 8px;
  --border-radius-md: 16px;
  --border-radius-lg: 24px;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

html, body {
  height: 100%;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-main);
  background: #111111;
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.6;
  background-image:
      linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 25px 25px;
  overflow-x: hidden;
}

a, button {
  cursor: pointer;
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-duration) ease;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

:focus-visible {
  outline: 2px solid var(--focus-outline);
  outline-offset: 2px;
  border-radius: var(--border-radius-sm);
}

.icon {
  width: 24px;
  height: 24px;
  fill: currentColor;
  transition: transform 0.2s ease;
}

/* Modal de Notificação */
.notification-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(15, 15, 20, 0.95);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  animation: fadeIn 0.3s ease-out;
}

.notification-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  max-width: 500px;
  width: 90%;
  margin: 2rem;
  animation: slideUp 0.4s ease-out;
}

.notification-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
  text-align: left;
}

.notification-icon {
  width: 24px;
  height: 24px;
  color: var(--accent-color);
}

.notification-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  background: linear-gradient(45deg, #1DB954, #1ED760);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.notification-content {
  margin-bottom: 2rem;
}

.notification-content p {
  color: var(--text-secondary);
  line-height: 1.6;
  font-size: 1rem;
}

.notification-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.notification-btn {
  margin-top: 0;
  animation: none;
  opacity: 1;
}

.notification-btn.primary {
  background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-dark) 100%);
  color: white;
  border: 1px solid var(--accent-color);
}

.notification-btn.secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.notification-btn.secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--accent-color);
}

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

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background-color: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
}

.header-left, .header-controls-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo-img {
  width: 32px;
  height: 32px;
  border-radius: 6px;
}

.header-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  background: linear-gradient(45deg, #1DB954, #1ED760);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.header-right {
  display: flex;
  gap: 0.5rem;
}

header button, .sidebar-header button {
  background: none;
  border: none;
  color: var(--text-primary);
  padding: 0.75rem;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-duration) ease;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
}

header button:hover, .sidebar-header button:hover {
  background-color: var(--border-color);
  transform: translateY(-2px) scale(1.05);
}

header button:hover .icon {
  transform: rotate(10deg) scale(1.1);
}

#spotify-btn {
  color: var(--accent-color);
}

#spotify-btn:hover {
  background-color: rgba(29, 185, 84, 0.1);
  box-shadow: 0 4px 15px rgba(29, 185, 84, 0.3);
}

main {
  width: 100%;
  max-width: 1280px;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-grow: 1;
  margin: 0 auto;
}

.hero-section {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 6rem 2rem 4rem 2rem;
  position: relative;
  background: radial-gradient(ellipse at center, rgba(29, 185, 84, 0.1) 0%, transparent 70%);
  width: 100%;
  text-align: center;
  margin: 0 auto;
}

.hero-content {
  max-width: 800px;
  animation: heroFadeIn 1s ease-out;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 0 auto;
}

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

.hero-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: rgba(29, 185, 84, 0.1);
  border: 1px solid rgba(29, 185, 84, 0.3);
  color: var(--accent-light);
  padding: 0.5rem 1rem;
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 500;
  margin: 0 auto 2rem auto;
  width: fit-content;
}

.badge-icon {
  width: 16px;
  height: 16px;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
  text-align: center;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-light) 50%, #1ED760 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  line-height: 1.6;
  text-align: center;
}

.main-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 2rem;
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  width: 100%;
  margin: 8rem 2rem 2rem 2rem;
  max-width: 600px;
}

.card-title {
  text-align: center;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
}

.input-box {
  margin-top: 20px;
  opacity: 0;
  animation: fadeIn 1s forwards 1s;
}

.input-box input {
  padding: 12px 16px;
  font-size: 16px;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-color);
  background-color: rgba(0, 0, 0, 0.2);
  color: var(--text-primary);
  outline: none;
  transition: 0.3s;
  width: 100%;
}

.input-box input:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 2px rgba(29, 185, 84, 0.2);
}

.output-box {
  margin-top: 20px;
  opacity: 0;
  animation: fadeIn 1s forwards 1.5s;
}

.output-box textarea {
  width: 100%;
  height: 150px;
  padding: 12px 16px;
  font-size: 16px;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-color);
  background-color: rgba(0, 0, 0, 0.2);
  color: var(--text-primary);
  resize: none;
  outline: none;
}

.output-box textarea:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 2px rgba(29, 185, 84, 0.2);
}

.btn {
  margin-top: 12px;
  padding: 12px 24px;
  font-size: 16px;
  border: 1px solid var(--accent-color);
  border-radius: var(--border-radius-md);
  background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-dark) 100%);
  color: white;
  cursor: pointer;
  transition: all 0.3s ease;
  opacity: 0;
  animation: fadeIn 1s forwards 2s;
  font-weight: 600;
  width: 100%;
  box-shadow: 0 4px 20px rgba(29, 185, 84, 0.3);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(29, 185, 84, 0.4);
}

.btn:active {
  transform: translateY(0);
}

.btn-container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 20px;
}

.btn.secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn.secondary:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--accent-color);
}

footer {
  margin-top: 15px;
  font-size: 13px;
  color: #aaa;
  text-align: center;
  padding: 2rem;
  width: 100%;
}

footer strong {
  color: var(--accent-light);
}

.visitor-counter {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  padding: 8px 12px;
  border-radius: 20px;
  font-size: 12px;
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--card-shadow);
  z-index: 99;
}

@keyframes fadeIn {
  to {
    opacity: 1;
  }
}

@media (max-width: 768px) {
  .main-card {
    margin: 1rem;
    margin-top: 5rem;
    padding: 1.5rem;
  }
  
  header {
    padding: 0.75rem 1rem;
  }
  
  .header-title {
    font-size: 1.2rem;
  }
  
  .header-brand {
    gap: 0.5rem;
  }

  .brand-logo-img {
    width: 28px;
    height: 28px;
  }

  .hero-section {
    padding: 5rem 1rem 3rem 1rem;
    min-height: auto;
  }

  .hero-title {
    font-size: 2.2rem;
    line-height: 1.2;
  }

  .hero-description {
    font-size: 1rem;
    margin-bottom: 2rem;
  }

  .btn-container {
    grid-template-columns: 1fr;
  }
  
  .notification-buttons {
    grid-template-columns: 1fr;
  }
  
  .notification-card {
    padding: 1.5rem;
    margin: 1rem;
  }
  
  .visitor-counter {
    bottom: 10px;
    right: 10px;
    font-size: 10px;
    padding: 6px 10px;
  }
}