/* =====================
   Root Colors & Variables
===================== */
:root {
  --bg: #ffffff;
  --text: #171615;
  --muted: #6e5b48;
  --border: #e5e5e5;
  --accent: #41342d;
  --highlight: #a5b2bb;
  --max-width: 1100px;
  --radius: 6px;
  --transition: 0.3s;
}

/* =====================
   Global Styles
===================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.5;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
  padding: 2rem;
}

/* Container */
.container {
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
  background-color: #fff;
}

/* =====================
   Headings
===================== */
h1, h2 {
  text-align: center;
  margin-bottom: 1rem;
}

h1 {
  color: var(--accent);
  font-size: 2.5rem;
}

h2 {
  color: var(--muted);
  font-size: 1.5rem;
}

/* =====================
   Inputs & Buttons
===================== */
input {
  display: block;
  width: 100%;
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 1rem;
  transition: border var(--transition);
}

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

button {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background-color: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  cursor: pointer;
  transition: background-color var(--transition);
}

button:hover {
  background-color: var(--highlight);
}

/* =====================
   Error / Info Messages
===================== */
#error {
  color: red;
  text-align: center;
  margin-bottom: 1rem;
}

/* =====================
   Dashboard Table
===================== */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

thead {
  background-color: var(--accent);
  color: #fff;
}

th, td {
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  text-align: center;
}

tbody tr:nth-child(even) {
  background-color: var(--highlight);
}

/* =====================
   Logout / Header
===================== */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.header h2 {
  margin: 0;
  font-size: 1.5rem;
}

/* =====================
   Responsive
===================== */
@media (max-width: 768px) {
  body {
    padding: 1rem;
  }

  .container {
    padding: 1rem;
  }

  th, td {
    font-size: 0.9rem;
    padding: 0.5rem;
  }

  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.2rem;
  }
}