/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --bg: #f9fafb;
  --surface: #ffffff;
  --text: #111827;
  --text-muted: #6b7280;
  --border: #e5e7eb;
  --success: #059669;
  --danger: #dc2626;
  --warning: #d97706;
  --info: #2563eb;
  --radius: 8px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container { max-width: 960px; margin: 0 auto; padding: 0 1.5rem; }

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* === Navbar === */
.navbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 0;
}
.nav-container { display: flex; align-items: center; justify-content: space-between; }
.nav-brand { font-size: 1.25rem; font-weight: 700; color: var(--primary); text-decoration: none; }
.nav-links { display: flex; gap: 1rem; align-items: center; }
.nav-links a { color: var(--text-muted); font-size: 0.95rem; }
.nav-links a:hover { color: var(--text); text-decoration: none; }

/* === Buttons === */
.btn {
  display: inline-block;
  padding: 0.65rem 1.5rem;
  background: var(--primary);
  color: #fff;
  border: 2px solid var(--primary);
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}
.btn:hover { background: var(--primary-hover); border-color: var(--primary-hover); text-decoration: none; }
.btn-outline { background: transparent; color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-block { width: 100%; text-align: center; }
.btn-sm { padding: 0.4rem 1rem; font-size: 0.85rem; }

/* === Hero === */
.hero {
  text-align: center;
  padding: 4rem 0 3rem;
}
.hero h1 { font-size: 2.5rem; margin-bottom: 1rem; }
.hero p { font-size: 1.15rem; color: var(--text-muted); max-width: 560px; margin: 0 auto 2rem; }
.hero .btn { margin: 0 0.5rem; }

/* === Features === */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  padding-bottom: 3rem;
}
.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.feature-card h3 { margin-bottom: 0.5rem; }
.feature-card p { color: var(--text-muted); font-size: 0.95rem; }

/* === Auth card === */
.auth-card {
  max-width: 420px;
  margin: 3rem auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
}
.auth-card h2 { margin-bottom: 1.5rem; text-align: center; }
.auth-footer { text-align: center; margin-top: 1.25rem; font-size: 0.9rem; color: var(--text-muted); }

/* === Forms === */
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.35rem; font-weight: 500; font-size: 0.9rem; }
.form-control {
  width: 100%;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  transition: border-color 0.15s;
}
.form-control:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(79,70,229,0.15); }
.checkbox-group { display: flex; align-items: center; gap: 0.5rem; }
.checkbox-group label { margin: 0; font-weight: 400; }
small.error { color: var(--danger); font-size: 0.8rem; }

/* === Alerts === */
.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  margin: 1rem 0;
  font-size: 0.9rem;
}
.alert-success { background: #ecfdf5; color: var(--success); border: 1px solid #a7f3d0; }
.alert-danger  { background: #fef2f2; color: var(--danger); border: 1px solid #fecaca; }
.alert-warning { background: #fffbeb; color: var(--warning); border: 1px solid #fde68a; }
.alert-info    { background: #eff6ff; color: var(--info); border: 1px solid #bfdbfe; }

/* === Dashboard === */
.dashboard { padding: 2rem 0; }
.dashboard h2 { margin-bottom: 1.5rem; }
.status-card, .account-info {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.status-card h3, .account-info h3 { margin-bottom: 0.75rem; }
.dashboard-actions { display: flex; gap: 0.75rem; margin-top: 1rem; }
.badge {
  display: inline-block;
  padding: 0.2rem 0.75rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
}
.badge-active  { background: #ecfdf5; color: var(--success); }
.badge-inactive { background: #f3f4f6; color: var(--text-muted); }

/* === Download === */
.download-page { padding: 2rem 0; }
.download-page h2 { margin-bottom: 0.5rem; }
.download-page > p { color: var(--text-muted); margin-bottom: 1.5rem; }
.download-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.download-info h3 { margin-bottom: 0.25rem; }
.download-info p { color: var(--text-muted); font-size: 0.95rem; }
.download-info small { color: var(--text-muted); }

/* === Footer === */
.footer {
  margin-top: auto;
  padding: 1.5rem 0;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
}