:root {
  --color-bg: #f3f1f1;
  --color-primary: #706eb1;
  --color-primary-light: #706eb1c3;
  --color-secondary: #393778;
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-pending: #64748b;
  --color-text: #1e293b;
  --color-border: #e2e8f0;
  --color-white: #ffffff;
  --color-sidebar: #504e83;

  --font-family: 'Inter', 'Segoe UI', sans-serif;
  --shadow-soft: 0 2px 6px rgba(0, 0, 0, 0.079);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-bg);
  color: var(--color-text);
  display: flex;
  flex-direction: column;
}

/* HEADER */
.header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: 15px 30px;
  box-shadow: var(--shadow-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  height: 80px;
}

.logout-btn {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 8px 16px;
  color: #64748b;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
}

.logout-btn:hover {
  border-color: #ef4444;
  color: #ef4444;
}

.hidden {
  display: none !important;
}

/* LAYOUT WRAPPER */
.layout-wrapper {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* SIDEBAR */
.sidebar {
  width: 160px;
  background: var(--color-sidebar);
  border-right: 1px solid var(--color-border);
  padding: 20px 0;
  overflow-y: auto;
}

.nav-menu {
  display: flex;
  flex-direction: column;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  color: var(--color-white);
  text-decoration: none;
  transition: all 0.3s ease;
  border-left: 3px solid transparent;
  font-size: 0.9rem;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-white);
}

.nav-item.active {
  border-left-color: var(--color-primary);
  background: rgba(37, 99, 235, 0.1);
  color: var(--color-primary);
}

/* MAIN CONTENT */
.main-content {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 40px;
  overflow-y: auto;
}

.container {
  width: 100%;
  max-width: 1100px;
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  padding: 40px;
}

h1 {
  text-align: center;
  color: var(--color-secondary);
  margin-bottom: 30px;
}

/* BUTTONS */
.primary-btn {
  display: block;
  width: 100%;
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  border-radius: var(--radius);
  padding: 14px;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.3s ease;
  margin-top: 20px;
}

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

.secondary-btn {
  display: block;
  margin: 30px auto 0;
  background: var(--color-white);
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius);
  padding: 12px 20px;
  cursor: pointer;
  transition: all 0.3s ease;
}

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

/* FOOTER */
.footer {
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
  padding: 20px 30px;
  text-align: center;
  font-size: 0.9rem;
  color: #64748b;
  box-shadow: 0 -2px 6px rgba(0, 0, 0, 0.08);
}