/* RESET */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* BODY */
body {
  background: #f2f2f5;
  color: #222;
  min-height: 100vh;
}

/* TOPBAR */
.topbar {
  background: #ffffff;
  border-bottom: 1px solid #ddd;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-logo {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: linear-gradient(135deg, #888, #444);
}

.topbar-title {
  font-size: 18px;
  font-weight: 600;
}

.topbar-right {
  font-size: 14px;
  color: #555;
}

/* NAV */
nav {
  background: #ffffff;
  border-bottom: 1px solid #ddd;
  padding: 10px 24px;
  display: flex;
  gap: 16px;
}

nav a {
  text-decoration: none;
  color: #555;
  font-weight: 500;
  padding: 6px 10px;
  border-radius: 6px;
  transition: 0.15s;
}

nav a:hover {
  background: #eee;
  color: #222;
}

/* MAIN WRAPPER */
.main {
  max-width: 900px;
  margin: 24px auto 40px auto;
  padding: 0 16px;
}

/* HEADERS */
h1 {
  font-size: 26px;
  margin-bottom: 16px;
}

h2 {
  font-size: 20px;
  margin: 24px 0 10px;
}

/* CARD / BOX */
.card {
  background: #ffffff;
  border-radius: 10px;
  border: 1px solid #ddd;
  padding: 18px 20px;
  margin-bottom: 18px;
}

/* TEXT */
p {
  margin-bottom: 8px;
}

/* INPUTS */
input[type="text"],
input[type="email"],
input[type="password"],
input[type="file"] {
  width: 100%;
  max-width: 360px;
  padding: 10px;
  margin: 6px 0 14px 0;
  border-radius: 6px;
  border: 1px solid #ccc;
  background: #fafafa;
  transition: 0.15s;
}

input:focus {
  outline: none;
  border-color: #888;
  background: #fff;
}

/* BUTTONS */
button {
  padding: 9px 16px;
  border-radius: 6px;
  border: 1px solid #bbb;
  background: #e0e0e0;
  color: #222;
  font-weight: 500;
  cursor: pointer;
  transition: 0.15s;
  margin-top: 4px;
}

button:hover {
  background: #d4d4d4;
}

/* BUTTON VARIANTS */
button.danger {
  background: #f3d0d0;
  border-color: #e0a0a0;
  color: #7a1f1f;
}

button.danger:hover {
  background: #e8b8b8;
}

button.warning {
  background: #f6e0c5;
  border-color: #e2b98b;
  color: #8a4a1f;
}

button.warning:hover {
  background: #edcfac;
}

/* AVATAR */
img.avatar {
  border-radius: 8px;
  margin-top: 8px;
  border: 1px solid #ccc;
  width: 80px;
  height: 80px;
  object-fit: cover;
}

/* HR */
hr {
  border: none;
  border-top: 1px solid #ddd;
  margin: 24px 0;
}

/* RESPONSIVE */
@media (max-width: 600px) {
  .topbar {
    padding: 10px 16px;
  }

  nav {
    padding: 8px 16px;
    flex-wrap: wrap;
  }

  .main {
    margin-top: 18px;
  }
}