/* ========================== styles.css ========================== */

/* ---------- General ---------- */
:root {
  --primary: #1976d2;
  --primary-dark: #115293;
  --background: #f5f6f8;
  --card-bg: #ffffff;
  --text-main: #2e2e2e;
  --text-muted: #707070;
  --border: #e0e0e0;
  --radius: 12px;
  --shadow: 0 3px 8px rgba(0, 0, 0, 0.08);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Inter", system-ui, sans-serif;
}

body {
  background: var(--background);
  color: var(--text-main);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ---------- Navbar ---------- */
.navbar {
  background: var(--card-bg);
  box-shadow: var(--shadow);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.7rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 10;
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--primary);
}

.navbar-nav {
  display: flex;
  gap: 0.8rem;
}

.nav-btn {
  background: transparent;
  border: none;
  color: var(--text-main);
  font-weight: 500;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
  border-radius: var(--radius);
  transition: 0.2s ease;
}

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

.nav-btn.logout {
  background: #e53935;
  color: #fff;
}
.nav-btn.logout:hover {
  background: #c62828;
}

/* ---------- Content ---------- */
.content-area {
  flex: 1;
  padding: 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

/* ---------- Cards ---------- */
.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.card h2 {
  color: var(--primary-dark);
  margin-bottom: 1rem;
}

/* ---------- Footer ---------- */
.footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ---------- Login ---------- */
.login-body {
  background: var(--background);
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
}

.login-container {
  width: 100%;
  max-width: 400px;
  padding: 1rem;
}

.login-card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
}

.app-title {
  color: var(--primary-dark);
  margin-bottom: 1rem;
}

.input-group {
  text-align: left;
  margin-bottom: 1rem;
}

.input-group label {
  display: block;
  margin-bottom: 0.3rem;
  color: var(--text-muted);
}

.input-group input {
  width: 100%;
  padding: 0.6rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  font-size: 1rem;
}

.btn-primary {
  width: 100%;
  background: var(--primary);
  color: white;
  padding: 0.7rem;
  border: none;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  transition: 0.3s;
}

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

.login-hint {
  margin-top: 1rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}