/* ===============================
   HEXA AdS — GLOBAL
================================ */

:root {
  --bg-light: #ffffff;
  --bg-dark: #0f172a;

  --card-light: #f8fafc;
  --card-dark: #020617;

  --text-light: #020617;
  --text-dark: #e5e7eb;

  --primary: #2563eb;
  --primary-hover: #1d4ed8;

  --secondary: #64748b;

  --border-light: #e5e7eb;
  --border-dark: #1e293b;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: var(--bg-dark);
    --card: var(--card-dark);
    --text: var(--text-dark);
    --border: var(--border-dark);
  }
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: var(--bg-light);
    --card: var(--card-light);
    --text: var(--text-light);
    --border: var(--border-light);
  }
}

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

body {
  background: var(--bg);
  color: var(--text);
  padding: 16px;
}

/* ===============================
   LAYOUT
================================ */

#app {
  max-width: 520px;
  margin: auto;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.header h1 {
  font-size: 22px;
}

#username {
  font-size: 14px;
  opacity: 0.7;
}

/* ===============================
   LOADER
================================ */

.loader {
  text-align: center;
  padding: 40px;
  font-size: 15px;
  opacity: 0.8;
}

.hidden {
  display: none;
}

/* ===============================
   CARDS
================================ */

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 16px;
}

.card h2 {
  font-size: 16px;
  margin-bottom: 8px;
}

.card p {
  font-size: 14px;
  margin-top: 4px;
  opacity: 0.9;
}

/* ===============================
   BUTTONS
================================ */

.btn {
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 12px;
  padding: 14px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

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

.btn.secondary {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
}

/* ===============================
   GRID
================================ */

.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}

/* ===============================
   FOOTER
================================ */

.footer {
  text-align: center;
  font-size: 13px;
  opacity: 0.7;
  margin-top: 20px;
}

.footer a {
  color: var(--primary);
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}