:root {
  --bg: #0b0c10;
  --sidebar-bg: rgba(21, 23, 30, 0.7);
  --accent: #ff3c4f;
  --text: #f2f2f2;
  --text-dim: #9aa0ab;
  --border: rgba(255, 255, 255, 0.08);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background-color: var(--bg);
  background-image:
    radial-gradient(at 0% 0%, rgba(112, 0, 255, 0.18) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(255, 60, 79, 0.14) 0px, transparent 50%);
  background-attachment: fixed;
  color: var(--text);
}

/* --- Shell / dashboard --- */

.shell {
  display: flex;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
}

.sidebar {
  width: 220px;
  flex-shrink: 0;
  background-image:
    linear-gradient(180deg, rgba(11, 12, 16, 0.25) 0%, rgba(11, 12, 16, 0.5) 100%),
    url('/static/images/lateral.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 20px 16px;
}

.sidebar-header {
  margin-bottom: 28px;
}

.sidebar-header img {
  width: 100%;
  height: auto;
  display: block;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.nav-btn {
  display: block;
  width: 100%;
  text-align: left;
  padding: 12px 14px;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.nav-btn:hover {
  background: #1f2430;
  color: var(--text);
}

.nav-btn.active {
  background: var(--accent);
  color: #fff;
}

.sidebar-footer {
  border-top: 1px solid var(--border);
  padding-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.user-info {
  display: flex;
  flex-direction: column;
  font-size: 13px;
  line-height: 1.4;
}

.user-info strong {
  color: var(--text);
}

.user-info span {
  color: var(--text-dim);
}

.logout-link {
  font-size: 13px;
  color: var(--text-dim);
  text-decoration: none;
}

.logout-link:hover {
  color: var(--accent);
}

.main-container {
  flex: 1;
  height: 100vh;
  overflow: hidden;
}

#app-frame {
  width: 100%;
  height: 100%;
  border: none;
  background: #0b0c10;
}

/* --- Login --- */

.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background-image: url('/static/images/fundo.jpg');
  background-size: cover;
  background-position: center top;
  background-repeat: no-repeat;
}

.login-card {
  width: 340px;
  padding: 32px 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.login-logo {
  width: 400px;
  max-width: 100%;
  height: auto;
  margin-bottom: 28px;
}

.login-error {
  width: 100%;
  background: #3a1a1a;
  border: 1px solid #7a2e2e;
  color: #ff8a8a;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 16px;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
}

.login-form label {
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 10px;
}

.login-form input {
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(6px);
  color: var(--text);
  font-size: 14px;
}

.login-form input:focus {
  outline: none;
  border-color: var(--accent);
}

.login-form button {
  margin-top: 20px;
  padding: 11px;
  border-radius: 8px;
  border: none;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
}

.login-form button:hover {
  opacity: 0.92;
}