/* ========================================
   FlyBuddy - Base Styles
   ======================================== */

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: background 0.3s, color 0.3s;
    overflow-x: hidden;
}

/* Tab Bar */
.tab-bar { display: flex; gap: 0; background: var(--bg-card); border-bottom: 2px solid var(--border-color); margin-bottom: 0; position: sticky; top: 0; z-index: 1000; }
.tab-btn { flex: 1; padding: 14px 20px; font-size: 15px; font-weight: 600; border: none; background: transparent; color: var(--text-secondary); cursor: pointer; transition: all 0.2s; border-bottom: 3px solid transparent; }
.tab-btn.active { color: var(--primary-color); border-bottom-color: var(--primary-color); background: var(--bg-primary); }
.tab-btn:hover:not(.active):not(.locked) { background: var(--bg-primary); opacity: 0.7; }
.tab-btn.locked { opacity: 0.35; cursor: not-allowed; }
.tab-btn.locked:hover { background: transparent; opacity: 0.35; }
.tab-lock-icon { font-size: 10px; margin-right: 3px; }
.tab-btn:not(.locked) .tab-lock-icon { display: none; }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* Animations */
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
@keyframes pulse-border { 0%, 100% { border-color: var(--warning); } 50% { border-color: var(--accent); } }
@keyframes dropdownFadeIn { from { opacity: 0; transform: translateX(-50%) translateY(-5px); } to { opacity: 1; transform: translateX(-50%) translateY(0); } }