:root {
  --bg-color: #0f172a;
  --card-bg: #1e293b;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --danger: #ef4444;
  --text: #f8fafc;
  --text-muted: #94a3b8;
  --border: #334155;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--bg-color);
  color: var(--text);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  background-color: var(--card-bg);
  border-bottom: 1px solid var(--border);
}

.navbar .logo { 
  font-size: 1.1rem; 
  font-weight: bold; 
  color: var(--primary); 
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.navbar-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.navbar div a { 
  color: var(--text-muted); 
  text-decoration: none; 
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.navbar div a:hover { 
  color: var(--text); 
}

.termux-icon {
  color: #4ade80;
  font-size: 1.2rem;
  transition: transform 0.2s;
}
.termux-icon:hover {
  transform: scale(1.1);
}

.container {
  max-width: 900px;
  margin: 1rem auto;
  padding: 0 1rem;
  width: 100%;
}

.auth-card {
  background-color: var(--card-bg);
  padding: 1.5rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  max-width: 400px;
  margin: 1.5rem auto;
  width: 100%;
}

.form-group { 
  margin-bottom: 1rem; 
}

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

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="file"],
.form-group input[type="password"] {
  width: 100%;
  padding: 0.75rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-color);
  color: var(--text);
  font-size: 0.95rem;
}

.btn {
  background: var(--primary);
  color: white;
  border: none;
  padding: 0.75rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  width: 100%;
  font-weight: bold;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

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

.btn-danger { 
  background: var(--danger); 
}

.error-msg {
  background: rgba(239, 68, 68, 0.2);
  color: #fca5a5;
  padding: 0.75rem;
  border-radius: 6px;
  margin-bottom: 1rem;
  border: 1px solid var(--danger);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Tabs Estilo WhatsApp */
.tabs-wrapper {
  overflow-x: auto;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
  -webkit-overflow-scrolling: touch;
}

.tabs {
  display: flex;
  gap: 0.5rem;
  padding-bottom: 0.5rem;
  width: max-content;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  cursor: pointer;
  white-space: nowrap;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

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

/* Lista de Arquivos */
.file-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.file-info { 
  display: flex; 
  flex-direction: column; 
  gap: 0.25rem; 
  word-break: break-word;
}

.file-actions { 
  display: flex; 
  gap: 0.5rem; 
  width: 100%;
}

.file-actions a,
.file-actions form {
  flex: 1;
}

.file-actions button { 
  width: 100%; 
  padding: 0.6rem; 
  font-size: 0.85rem; 
}

/* Token Box no Perfil */
.token-box {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: #0f172a;
  padding: 0.5rem 0.8rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  margin-top: 0.5rem;
}

.token-box code {
  color: #4ade80;
  font-size: 0.95rem;
  word-break: break-all;
  flex: 1;
}

.icon-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.4rem;
  font-size: 1rem;
  border-radius: 4px;
}

.icon-btn:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.1);
}

@media (min-width: 640px) {
  .file-card {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .file-actions {
    width: auto;
  }

  .file-actions button {
    width: auto;
  }

  .upload-form {
    flex-direction: row !important;
  }
}

/* Foto de Perfil Avatar */
.profile-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.avatar-container {
  position: relative;
  width: 110px;
  height: 110px;
}

.avatar-img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--primary);
  background: var(--bg-color);
}

.avatar-upload-btn {
  position: absolute;
  bottom: 0;
  right: 0;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 50%;
  width: 35px;
  height: 35px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Modais de Edição */
.edit-box {
  background: var(--bg-color);
  padding: 1rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  margin-top: 1rem;
}

.admin-section {
  margin-top: 2rem;
  background: var(--card-bg);
  padding: 1.5rem;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

.admin-table th, .admin-table td {
  padding: 0.75rem;
  border: 1px solid var(--border);
  text-align: left;
  font-size: 0.85rem;
}

.admin-table th {
  background: var(--bg-color);
  color: var(--primary);
}