/* ── Reset & Base ─────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
.hidden { display: none !important; }

:root {
  --bg:          #eae6df;
  --surface:     #f4f1ec;
  --surface-2:   #ece8e2;
  --surface-3:   #e3ded6;
  --border:      #d5d0c8;
  --text-1:      #2c2825;
  --text-2:      #6e6860;
  --text-3:      #9c958b;
  --accent:      #c44535;
  --accent-glow: rgba(196, 69, 53, 0.12);
  --selected:    #7e5cc5;
  --selected-glow: rgba(126, 92, 197, 0.15);
  --hike:        #ff3366;
  --ride:        #6366f1;
  --run:         #ff9500;
  --trail-run:   #bf5af2;
  --kayak:       #00b4d8;
  --forest-1:    #2d5a3d;
  --forest-2:    #3a7250;
  --forest-3:    #4a8a62;
  --forest-4:    #5ea878;
  --nav-h:       56px;
  --sidebar-w:   320px;
  --radius:      10px;
  --font:        'Source Serif Pro', Georgia, serif;
  --font-display: 'Source Serif Pro', Georgia, serif;
}

html, body {
  height: 100%;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-1);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

/* ── Top Nav ─────────────────────────────────────────── */
.top-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  z-index: 2000;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Inter', -apple-system, sans-serif;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.4px;
  color: var(--text-1);
}

.nav-brand svg { width: 26px; height: 26px; }

.nav-spacer { flex: 1; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
}
.nav-link:hover { color: var(--text-1); background: var(--surface-2); }

.btn-primary {
  display: inline-block;
  padding: 8px 18px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s;
  text-decoration: none;
}
.btn-primary:hover { opacity: 0.88; }

.btn-outline {
  display: inline-block;
  padding: 6px 14px;
  background: transparent;
  color: var(--text-3);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: var(--font);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
  text-decoration: none;
}
.btn-outline:hover { color: var(--text-2); border-color: var(--text-3); }