:root {
  --bg-main: #F1F5F9;
  --bg-card: #FFFFFF;
  --bg-hover: #F8FAFC;
  --accent: #0284C7;
  --accent-hover: #0369A1;
  --text-main: #0F172A;
  --text-muted: #475569;
  --border: #CBD5E1;
  --font-stack: 'Inter', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; transition: all 0.15s ease; }
body { background-color: var(--bg-main); color: var(--text-main); font-family: var(--font-stack); min-height: 100vh; display: flex; flex-direction: column; }
a { color: inherit; text-decoration: none; }

/* Fixed Layout Bar - items pack left by default with an inner gap */
.top-banner { 
  display: flex; 
  justify-content: flex-start; 
  align-items: center; 
  padding: 1rem; 
  background: var(--bg-card); 
  border-bottom: 2px solid var(--border); 
  position: relative; 
  z-index: 10; 
  box-shadow: 0 1px 3px rgba(0,0,0,0.05); 
  gap: 20px; /* Controls spacing between menu icon and logo container */
}

.nav-toggle-btn { background: none; border: none; color: var(--text-main); font-size: 1.4rem; cursor: pointer; display: flex; align-items: center; width: auto; }
.nav-toggle-btn:hover { color: var(--accent); }

/* Pushes login button to the far right, matching original layout placement */
.login-btn { 
  background: var(--accent); 
  color: #FFFFFF; 
  border: none; 
  padding: 0.6rem 1.5rem; 
  font-weight: 700; 
  border-radius: 6px; 
  cursor: pointer; 
  letter-spacing: 0.5px; 
  width: max-content; 
  height: max-content; 
  margin-left: auto; /* Pushes element all the way right */
}
.login-btn:hover { background: var(--accent-hover); transform: translateY(-1px); }

/* Left-aligned branding block */
.logo-container {
  display: flex;
  align-items: center;
  gap: 12px;
  width: max-content;
}
.logo-container img {
  height: 50px;
  width: auto;
  display: block;
}
.logo-container h4 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.sidebar { position: fixed; top: 0; left: -280px; width: 280px; height: 100%; background: var(--bg-card); border-right: 2px solid var(--border); z-index: 1000; padding: 2rem 1.5rem; box-shadow: 5px 0 25px rgba(0,0,0,0.15); }
.sidebar.active { left: 0; }
.sidebar-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 2rem; }
.sidebar-header h2 { font-size: 1.4rem; color: var(--accent); font-weight: 700; }
.sidebar-links { display: flex; flex-direction: column; gap: 0.5rem; }
.sidebar-link { padding: 0.8rem 1rem; border-radius: 6px; color: var(--text-main); font-weight: 600; display: flex; align-items: center; gap: 0.75rem; border: 1px solid transparent; }
.sidebar-link:hover { background: var(--bg-main); color: var(--accent); border-color: var(--border); }

.hero { text-align: center; padding: 3.5rem 2rem 1.5rem; display: flex; flex-direction: column; align-items: center; gap: 0.75rem; }
.brand-meta h4 { text-transform: uppercase; letter-spacing: 1.5px; font-size: 0.9rem; color: var(--text-muted); font-weight: 700; margin-bottom: 0.25rem; }
.brand-meta h1 { font-size: 3rem; font-weight: 800; letter-spacing: -1px; color: var(--text-main); }
.ip-badge { background: #E2E8F0; border: 2px solid var(--border); display: inline-block; padding: 0.4rem 1.2rem; border-radius: 50px; font-family: monospace; color: #0369A1; font-weight: 700; font-size: 1rem; margin-top: 0.5rem; }

.main-content { max-width: 1200px; width: 100%; margin: 0 auto; padding: 2rem; flex: 1; }
.dashboard-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }

.card { background: var(--bg-card); border: 2px solid var(--border); border-radius: 12px; padding: 2rem; display: flex; flex-direction: column; height: 100%; box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05); }
.card:hover { border-color: var(--accent); box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1); }
.card-header { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.5rem; border-bottom: 2px solid var(--bg-main); padding-bottom: 1rem; }
.card-header i { font-size: 1.5rem; color: var(--accent); background: #E0F2FE; padding: 0.75rem; border-radius: 8px; }
.card-header h3 { font-size: 1.3rem; font-weight: 700; color: var(--text-main); }

.link-list { display: flex; flex-direction: column; gap: 0.75rem; }
.app-link { display: flex; justify-content: space-between; align-items: center; padding: 0.9rem 1.2rem; background: var(--bg-hover); border: 2px solid #E2E8F0; border-radius: 8px; font-weight: 600; font-size: 1rem; color: var(--text-main); }
.app-link::after { content: '\f08e'; font-family: 'Font Awesome 6 Free'; font-weight: 900; font-size: 0.85rem; color: var(--text-muted); opacity: 0.7; }
.app-link:hover { background: #E0F2FE; border-color: var(--accent); color: var(--accent-hover); }
.app-link:hover::after { color: var(--accent-hover); opacity: 1; }

.modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(15, 23, 42, 0.6); backdrop-filter: blur(4px); z-index: 2000; display: flex; align-items: center; justify-content: center; opacity: 0; pointer-events: none; }
.modal-overlay.active { opacity: 1; pointer-events: auto; }
.modal-container { background: var(--bg-card); border: 2px solid var(--border); border-radius: 16px; width: 90%; max-width: 480px; padding: 2rem; transform: scale(0.95); box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1); }
.modal-overlay.active .modal-container { transform: scale(1); }
.modal-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.modal-top h3 { font-size: 1.4rem; color: var(--text-main); font-weight: 700; }
.modal-close { background: none; border: none; color: var(--text-muted); font-size: 1.4rem; cursor: pointer; }
.modal-close:hover { color: var(--text-main); }
.modal-body { color: var(--text-muted); line-height: 1.6; margin-bottom: 1.5rem; font-size: 1.05rem; }

footer { background: var(--bg-card); border-top: 2px solid var(--border); padding: 1rem; margin-top: auto; display: flex; justify-content: space-between; align-items: center; font-size: 0.95rem; color: var(--text-muted); font-weight: 500; }
footer a { color: var(--accent); font-weight: 600; }
footer a:hover { color: var(--accent-hover); text-decoration: underline; }
.scroll-top-btn { background: #E2E8F0; border: 2px solid var(--border); color: var(--text-main); width: 44px; height: 44px; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; font-size: 1.1rem; }
.scroll-top-btn:hover { color: var(--accent); border-color: var(--accent); background: #E0F2FE; }

@media (max-width: 768px) {
  .dashboard-grid { grid-template-columns: 1fr; }
  footer { flex-direction: column; gap: 1rem; text-align: center; }
}